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Katsube M, Ishimoto T, Fukushima Y, Kagami A, Shuto T, Kato Y. Ergothioneine promotes longevity and healthy aging in male mice. GeroScience 2024; 46:3889-3909. [PMID: 38446314 PMCID: PMC11226696 DOI: 10.1007/s11357-024-01111-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 02/26/2024] [Indexed: 03/07/2024] Open
Abstract
Healthy aging has emerged as a crucial issue with the increase in the geriatric population worldwide. Food-derived sulfur-containing amino acid ergothioneine (ERGO) is a potential dietary supplement, which exhibits various beneficial effects in experimental animals although the preventive effects of ERGO on aging and/or age-related impairments such as frailty and cognitive impairment are unclear. We investigated the effects of daily oral supplementation of ERGO dissolved in drinking water on lifespan, frailty, and cognitive impairment in male mice from 7 weeks of age to the end of their lives. Ingestion of 4 ~ 5 mg/kg/day of ERGO remarkably extended the lifespan of male mice. The longevity effect of ERGO was further supported by increase in life and non-frailty spans of Caenorhabditis elegans in the presence of ERGO. Compared with the control group, the ERGO group showed significantly lower age-related declines in weight, fat mass, and average and maximum movement velocities at 88 weeks of age. This was compatible with dramatical suppression by ERGO of the age-related increments in plasma biomarkers (BMs) such as the chemokine ligand 9, creatinine, symmetric dimethylarginine, urea, asymmetric dimethylarginine, quinolinic acid, and kynurenine. The oral intake of ERGO also rescued age-related impairments in learning and memory ability, which might be associated with suppression of the age-related decline in hippocampal neurogenesis and TDP43 protein aggregation and promotion of microglial shift to the M2 phenotype by ERGO ingestion. Ingestion of ERGO may promote longevity and healthy aging in male mice, possibly through multiple biological mechanisms.
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Affiliation(s)
- Makoto Katsube
- Faculty of Pharmacy, Kanazawa University, Kanazawa, 920-1192, Japan
| | | | - Yutaro Fukushima
- Department of Molecular Medicine, Graduate School of Pharmaceutical Science, Kumamoto University, Kumamoto, 862-0973, Japan
| | - Asuka Kagami
- Department of Molecular Medicine, Graduate School of Pharmaceutical Science, Kumamoto University, Kumamoto, 862-0973, Japan
| | - Tsuyoshi Shuto
- Department of Molecular Medicine, Graduate School of Pharmaceutical Science, Kumamoto University, Kumamoto, 862-0973, Japan
| | - Yukio Kato
- Faculty of Pharmacy, Kanazawa University, Kanazawa, 920-1192, Japan.
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Kemp ET, Zandberg L, Harvey BH, Smuts CM, Baumgartner J. Iron and n-3 fatty acid depletion, alone and in combination, during early development provoke neurochemical changes, anhedonia, anxiety and social dysfunction in rats. Nutr Neurosci 2024; 27:698-714. [PMID: 37585720 DOI: 10.1080/1028415x.2023.2245615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/18/2023]
Abstract
Objectives: Both iron and omega-3 (n-3) fatty acids (FA) play important roles in the development and functioning of the brain. We investigated the effects of n-3 FA and iron deficiencies, alone and in combination, during early development on behaviour and brain monoamines in rats. Methods: Using a 2-factorial design, female Wistar rats were randomly allocated to one of four diet groups: Control, n-3 FA deficient (n-3 FAD), iron deficient (ID), or n-3 FAD + ID. Females received these diets throughout mating, pregnancy and lactation. Offspring (n = 24/group; male:female = 1:1) continued on the same diet until post-natal day 42-45, and underwent a sucrose preference test (SPT), novel object recognition test, elevated plus maze (EPM) and social interaction test (SIT). Results: ID offspring consumed less sucrose in the SPT and spent more time in closed arms and less time in open arms of the EPM than non-ID offspring. In female offspring only, ID and n-3 FAD reduced time approaching and together in the SIT, with an additive effect of ID and n-3 FAD for even less time approaching and spent together in the n-3 FAD + ID group compared to controls. ID offspring had higher striatal dopamine and norepinephrine and lower frontal cortex dopamine concentrations. N-3 FAD and ID affected frontal cortex serotonin concentrations in a sex-specific manner. Conclusions: Our results suggest that ID and n-3 FAD during early development provoke anhedonia, anxiety and social dysfunction in rats, with potential additive and attenuating effects when combined. These effects may in part be attributed to disturbances in brain neurochemistry and may be sex-specific.
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Affiliation(s)
- Erna T Kemp
- Center of Excellence for Nutrition, North-West University, Potchefstroom, South Africa
| | - Lizelle Zandberg
- Center of Excellence for Nutrition, North-West University, Potchefstroom, South Africa
| | - Brian H Harvey
- School of Pharmacy and Center of Excellence for Pharmaceutical Sciences, North-West University, Potchefstroom, South Africa
- South African Medical Research Council Unit on Risk and Resilience in Mental Disorders, Department of Psychiatry and Neuroscience Institute, University of Cape Town, Cape Town, South Africa
- The Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Deakin University, Geelong, Australia
| | - Cornelius M Smuts
- Center of Excellence for Nutrition, North-West University, Potchefstroom, South Africa
| | - Jeannine Baumgartner
- Center of Excellence for Nutrition, North-West University, Potchefstroom, South Africa
- Department of Nutritional Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
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3
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Hong VM, Rade AD, Yan SM, Bhaskara A, Yousuf MS, Chen M, Martin SF, Liebl DJ, Price TJ, Kolber BJ. Loss of Sigma-2 Receptor/TMEM97 Is Associated with Neuropathic Injury-Induced Depression-Like Behaviors in Female Mice. eNeuro 2024; 11:ENEURO.0488-23.2024. [PMID: 38866499 PMCID: PMC11228697 DOI: 10.1523/eneuro.0488-23.2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 04/30/2024] [Accepted: 05/23/2024] [Indexed: 06/14/2024] Open
Abstract
Previous studies have shown that ligands that bind to sigma-2 receptor/TMEM97 (s2R/TMEM97), a transmembrane protein, have anxiolytic/antidepressant-like properties and relieve neuropathic pain-like effects in rodents. Despite medical interest in s2R/TMEM97, little affective and pain behavioral characterization has been done using transgenic mice, which limits the development of s2R/TMEM97 as a viable therapeutic target. Using wild-type (WT) and global Tmem97 knock-out (KO) mice, we sought to identify the contribution of Tmem97 in modulating affective and pain-like behaviors using a battery of affective and pain assays, including open field, light/dark preference, elevated plus maze, forced swim test, tail suspension test, and the mechanical sensitivity tests. Our results demonstrate that female Tmem97 KO mice show less anxiety-like and depressive-like behaviors in light/dark preference and tail suspension tests but not in an open field, elevated plus maze, and forced swim tests at baseline. We next performed spared nerve injury in WT and Tmem97 KO mice to assess the role of Tmem97 in neuropathic pain-induced anxiety and depression. WT mice, but not Tmem97 KO mice, developed a prolonged neuropathic pain-induced depressive-like phenotype when tested 10 weeks after nerve injury in females. Our results show that Tmem97 plays a role in modulating anxiety-like and depressive-like behaviors in naive animals with a significant change in the presence of nerve injury in female mice. Overall, these data demonstrate that Tmem97 could be a target to alleviate affective comorbidities of pain disorders.
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Affiliation(s)
- Veronica M Hong
- Department of Neuroscience, School of Behavioral and Brain Sciences, University of Texas at Dallas, Richardson, Texas 75080
- Center for Advanced Pain Studies, School of Behavioral and Brain Sciences, University of Texas at Dallas, Richardson, Texas 75080
| | - Avaneesh D Rade
- Department of Neuroscience, School of Behavioral and Brain Sciences, University of Texas at Dallas, Richardson, Texas 75080
| | - Shen M Yan
- Department of Neuroscience, School of Behavioral and Brain Sciences, University of Texas at Dallas, Richardson, Texas 75080
| | - Amulya Bhaskara
- Department of Neuroscience, School of Behavioral and Brain Sciences, University of Texas at Dallas, Richardson, Texas 75080
| | - Muhammad Saad Yousuf
- Department of Neuroscience, School of Behavioral and Brain Sciences, University of Texas at Dallas, Richardson, Texas 75080
- Center for Advanced Pain Studies, School of Behavioral and Brain Sciences, University of Texas at Dallas, Richardson, Texas 75080
| | - Min Chen
- Department of Mathematical Sciences, School of Natural Sciences and Mathematics, University of Texas at Dallas, Richardson, Texas 75080
| | - Stephen F Martin
- Department of Chemistry, University of Texas at Austin, Austin, Texas 78712
| | - Daniel J Liebl
- Department of Neurosurgery, University of Miami, Miller School of Medicine, Miami, Florida 33146
| | - Theodore J Price
- Department of Neuroscience, School of Behavioral and Brain Sciences, University of Texas at Dallas, Richardson, Texas 75080
- Center for Advanced Pain Studies, School of Behavioral and Brain Sciences, University of Texas at Dallas, Richardson, Texas 75080
| | - Benedict J Kolber
- Department of Neuroscience, School of Behavioral and Brain Sciences, University of Texas at Dallas, Richardson, Texas 75080
- Center for Advanced Pain Studies, School of Behavioral and Brain Sciences, University of Texas at Dallas, Richardson, Texas 75080
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Ebrahim N, Al Saihati HA, Alali Z, Aleniz FQ, Mahmoud SYM, Badr OA, Dessouky AA, Mostafa O, Hussien NI, Farid AS, El-Sherbiny M, Salim RF, Forsyth NR, Ali FEM, Alsabeelah NF. Exploring the molecular mechanisms of MSC-derived exosomes in Alzheimer's disease: Autophagy, insulin and the PI3K/Akt/mTOR signaling pathway. Biomed Pharmacother 2024; 176:116836. [PMID: 38850660 DOI: 10.1016/j.biopha.2024.116836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 05/16/2024] [Accepted: 05/26/2024] [Indexed: 06/10/2024] Open
Abstract
Alzheimer's disease (AD) is a devastating neurological condition characterized by cognitive decline, motor coordination impairment, and amyloid plaque accumulation. The underlying molecular mechanisms involve oxidative stress, inflammation, and neuronal degeneration. This study aimed to investigate the therapeutic effects of mesenchymal stem cell-derived exosomes (MSC-exos) on AD and explore the molecular pathways involved, including the PI3K/Akt/mTOR axis, autophagy, and neuroinflammation. To assess the potential of MSC-exos for the treatment of AD, rats were treated with AlCl3 (17 mg/kg/once/day) for 8 weeks, followed by the administration of an autophagy activator (rapamycin), or MSC-exos with or without an autophagy inhibitor (3-methyladenin; 3-MA+ chloroquine) for 4 weeks. Memory impairment was tested, and brain tissues were collected for gene expression analyses, western blotting, histological studies, immunohistochemistry, and transmission electron microscopy. Remarkably, the administration of MSC-exos improved memory performance in AD rats and reduced the accumulation of amyloid-beta (Aβ) plaques and tau phosphorylation. Furthermore, MSC-exos promoted neurogenesis, enhanced synaptic function, and mitigated astrogliosis in AD brain tissues. These beneficial effects were associated with the modulation of autophagy and the PI3K/Akt/mTOR signalling pathway, as well as the inhibition of neuroinflammation. Additionally, MSC-exos were found to regulate specific microRNAs, including miRNA-21, miRNA-155, miRNA-17-5p, and miRNA-126-3p, further supporting their therapeutic potential. Histopathological and bioinformatic analyses confirmed these findings. This study provides compelling evidence that MSC-exos hold promise as a potential therapeutic approach for AD. By modulating the PI3K/Akt/mTOR axis, autophagy, and neuroinflammation, MSC-exos have the potential to improve memory, reduce Aβ accumulation, enhance neurogenesis, and mitigate astrogliosis. These findings shed light on the therapeutic potential of MSC-exos and highlight their role in combating AD.
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Affiliation(s)
- Nesrine Ebrahim
- Department of Medical Histology and Cell Biology Faculty of Medicine, Benha University, Benha, Egypt; Stem Cell Unit, Faculty of Medicine, Benha University, Egypt; Benha National University, Faculty of Medicine. student at Keele University, UK; Department of Anatomy, Mansoura Faculty of Medicine, Mansoura University, Egypt.
| | - Hajer A Al Saihati
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, University of Hafr Albatin, Saudi Arabia; Department of Anatomy, Mansoura Faculty of Medicine, Mansoura University, Egypt.
| | - Zahraa Alali
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, University of Hafr Al Batin, P.O Box 1803, Hafr Al Batin 31991, Saudi Arabia
| | - Faris Q Aleniz
- Department of Immunology, Collage of Applied Science, Alkharj
| | - Sabry Younis Mohamed Mahmoud
- Biology Department, College of Sciences, University of Hafr Al Batin, P. O. Box 1803, Hafar Al Batin 31991, Saudi Arabia. Agricultural Microbiology Department, Faculty of Agriculture, Sohag University, Sohag, Egypt
| | - Omnia A Badr
- Department of Genetics and Genetic Engineering, Faculty of Agriculture, Benha University, Benha, Egypt
| | - Arigue A Dessouky
- Department of Medical Histology and Cell Biology, Faculty of Medicine, Zagazig University, Egypt
| | - Ola Mostafa
- Department of Medical Histology and Cell Biology Faculty of Medicine, Benha University, Benha, Egypt
| | - Noha I Hussien
- Department of Physiology, Faculty of Medicine, Benha University, Egypt
| | - Ayman Samir Farid
- Department of Clinical Pathology, Faculty of Veterinary Medicine, Benha University, Moshtohor, Toukh, Qalyubia 13736, Egypt
| | - Mohamed El-Sherbiny
- Department of Basic Medical Sciences, College of Medicine, AlMaarefa University, Riyadh, Saudi Arabia
| | - Rabab F Salim
- Department of Medical Biochemistry and molecular biology, Faculty of Medicine, Benha University, Egypt
| | - Nicholas Robert Forsyth
- School of Pharmacy and Bioengineering, Keele University. Vice Principals' Office, University of Aberdeen, Kings College, Aberdeen, AB24 3FX, UK
| | - Fares E M Ali
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, Egypt
| | - Nimer F Alsabeelah
- Assistant Professor of Pharmacology Pharmacy Practice Department, Pharmacy College University of Hafr Al Batin, P.O. Box 1803, Hafr Al Batin 31991, Saudi Arabia
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5
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Bonilla P, Shanks A, Nerella Y, Porcu A. Effects of chronic light cycle disruption during adolescence on circadian clock, neuronal activity rhythms, and behavior in mice. Front Neurosci 2024; 18:1418694. [PMID: 38952923 PMCID: PMC11215055 DOI: 10.3389/fnins.2024.1418694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Accepted: 05/29/2024] [Indexed: 07/03/2024] Open
Abstract
The advent of artificial lighting, particularly during the evening and night, has significantly altered the predictable daily light and dark cycles in recent times. Altered light environments disrupt the biological clock and negatively impact mood and cognition. Although adolescents commonly experience chronic changes in light/dark cycles, our understanding of how the adolescents' brain adapts to altered light environments remains limited. Here, we investigated the impact of chronic light cycle disruption (LCD) during adolescence, exposing adolescent mice to 19 h of light and 5 h of darkness for 5 days and 12 L:12D for 2 days per week (LCD group) for 4 weeks. We showed that LCD exposure did not affect circadian locomotor activity but impaired memory and increased avoidance response in adolescent mice. Clock gene expression and neuronal activity rhythms analysis revealed that LCD disrupted local molecular clock and neuronal activity in the dentate gyrus (DG) and in the medial amygdala (MeA) but not in the circadian pacemaker (SCN). In addition, we characterized the photoresponsiveness of the MeA and showed that somatostatin neurons are affected by acute and chronic aberrant light exposure during adolescence. Our research provides new evidence highlighting the potential consequences of altered light environments during pubertal development on neuronal physiology and behaviors.
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Affiliation(s)
| | | | | | - Alessandra Porcu
- Department of Drug Discovery and Biomedical Science, University of South Carolina, Columbia, SC, United States
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6
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Singh H, Raja A, Chauhan A, Jain A, Prakash A, Bhatia A, Avti P, Medhi B. Unlocking the Therapeutic Potential: Sitagliptin's Multifaceted Approach in Drug-Resistant Epilepsy through a Novel Mechanism Inhibiting Protein Kinase C-γ and a Long-Term Potentiation Pathway. ACS Pharmacol Transl Sci 2024; 7:1856-1863. [PMID: 38898950 PMCID: PMC11184596 DOI: 10.1021/acsptsci.4c00073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 04/24/2024] [Accepted: 05/08/2024] [Indexed: 06/21/2024]
Abstract
Drug-resistant epilepsy is a prominent challenge in chronic neurological disorders. Valproate, commonly used to treat epilepsy, can fail due to various side effects and interactions, necessitating the exploration of alternative treatments. Our study primarily investigated sitagliptin's potential as a therapeutic agent for drug-resistant epilepsy. Employing computational modeling and enzyme assay testing, three lead compounds, emixustat, sitagliptin, and distigmine bromide, were evaluated against the target enzyme protein kinase C-γ. In vivo, experiments on a pentylenetetrazolium-induced lamotrigine-resistant epilepsy model were conducted to test sitagliptin's antiseizure effects, compared with the standard phenobarbital treatment. Emixustat and sitagliptin showcased strong inhibitory properties, while distigmine bromide was less effective in the enzyme assay. Mechanistic insights revealed sitagliptin's ability to modulate the seizure grade and first myoclonic jerk latency via oxidative stress markers, like reduced glutathione and glutathione peroxidase emphasizing its antioxidative role in epilepsy. Additionally, it demonstrated anti-inflammatory effects by significantly reducing proinflammatory markers interleukin-1β and interleukin-6. The modulation of key genes of the long-term potentiation pathway, particularly protein kinase C-γ and metabotropic glutamate receptor 5, was evident through mRNA expression levels. Finally, sitagliptin showed potential neuroprotective properties, limiting pentylenetetrazolium-induced neuronal loss in the hippocampal region. Collectively, our findings suggest sitagliptin's multidimensional therapeutic potential for drug-resistant epilepsy specifically via a long-term potentiation pathway by inhibiting protein kinase C-γ.
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Affiliation(s)
- Harvinder Singh
- Department
of Pharmacology, PGIMER, Chandigarh 160012, India
| | - Anupam Raja
- Department
of Pharmacology, PGIMER, Chandigarh 160012, India
| | - Arushi Chauhan
- Department
of Biophysics, PGIMER, Chandigarh 160012, India
| | - Ashish Jain
- Department
of Pharmacology, PGIMER, Chandigarh 160012, India
| | - Ajay Prakash
- Department
of Pharmacology, PGIMER, Chandigarh 160012, India
| | - Alka Bhatia
- Department
of Experimental Medicine and Biotechnology, PGIMER, Chandigarh 160012, India
| | - Pramod Avti
- Department
of Biophysics, PGIMER, Chandigarh 160012, India
| | - Bikash Medhi
- Department
of Pharmacology, PGIMER, Chandigarh 160012, India
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Liu X, Manninen T, Capper AM, Jiang X, Ellison J, Kim Y, Gurler G, Xu D, Ferriero DM. Brain metabolism after therapeutic hypothermia for murine hypoxia-ischemia using hyperpolarized [1- 13C] pyruvate magnetic resonance spectroscopy. NMR IN BIOMEDICINE 2024:e5196. [PMID: 38853759 DOI: 10.1002/nbm.5196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 04/16/2024] [Accepted: 05/12/2024] [Indexed: 06/11/2024]
Abstract
Hypoxic-ischemic encephalopathy (HIE) is a common neurological syndrome in newborns with high mortality and morbidity. Therapeutic hypothermia (TH), which is standard of care for HIE, mitigates brain injury by suppressing anaerobic metabolism. However, more than 40% of HIE neonates have a poor outcome, even after TH. This study aims to provide metabolic biomarkers for predicting the outcomes of hypoxia-ischemia (HI) after TH using hyperpolarized [1-13C] pyruvate magnetic resonance spectroscopy. Postnatal day 10 (P10) mice with HI underwent TH at 1 h and were scanned at 6-8 h (P10), 24 h (P11), 7 days (P17), and 21 days (P31) post-HI on a 14.1-T NMR spectrometer. The metabolic images were collected, and the conversion rate from pyruvate to lactate and the ratio of lactate to pyruvate in the injured left hemisphere (kPL(L) and Lac/Pyr(L), respectively) were calculated at each timepoint. The outcomes of TH were determined by the assessments of brain injury on T2-weighted images and behavioral tests at later timepoint. kPL(L) and Lac/Pyr(L) over time between the good-outcome and poor-outcome groups and across timepoints within groups were analyzed. We found significant differences in temporal trends of kPL(L) and Lac/Pyr(L) between groups. In the good-outcome group, kPL(L) increased until P31 with a significantly higher value at P31 compared with that at P10, while the level of Lac/Pyr(L) at P31 was notably higher than those at all other timepoints. In the poor-outcome group, kPL(L) and Lac/Pyr(L) increased within 24 h. The kPL(L) value at P11 was considerably higher compared with P10. Discrete temporal changes of kPL(L) and Lac/Pyr(L) after TH between the good-outcome and poor-outcome groups were seen as early as 24 h after HI, reflecting various TH effects on brain anaerobic metabolism, which may provide insights for early screening for response to TH.
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Affiliation(s)
- Xiaodan Liu
- Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, California, USA
- Department of Neurology, University of California San Francisco, San Francisco, California, USA
| | - Tiina Manninen
- Department of Neurology, University of California San Francisco, San Francisco, California, USA
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | | | - Xiangning Jiang
- Department of Neurology, University of California San Francisco, San Francisco, California, USA
| | - Jacob Ellison
- Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, California, USA
- Joint UCSF/UC Berkeley Graduate Group in Bioengineering, San Francisco, California, USA
| | - Yaewon Kim
- Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, California, USA
| | - Gokce Gurler
- Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Duan Xu
- Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, California, USA
- Joint UCSF/UC Berkeley Graduate Group in Bioengineering, San Francisco, California, USA
| | - Donna M Ferriero
- Department of Neurology, University of California San Francisco, San Francisco, California, USA
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Singh NAK, Prasad S. Ellagic Acid Reverses Alterations in the Expression of AMPA Receptor and Its Scaffolding Proteins in the Cerebral Cortex and Memory Decline in STZ-sporadic Alzheimer' s Disease Mouse Model. Psychopharmacology (Berl) 2024:10.1007/s00213-024-06622-9. [PMID: 38842699 DOI: 10.1007/s00213-024-06622-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 05/18/2024] [Indexed: 06/07/2024]
Abstract
RATIONALE Alzheimer's disease (AD), an age-dependent devastating neuropsychiatric disorder, is a leading cause of learning, memory and intellectual disabilities. Current therapeutic approaches for the amelioration of the anomalies of AD are not effective. OBJECTIVE In the present study, the molecular mechanisms underlying sporadic AD (sAD), the memory related behavioral analysis and neuroprotective effects of Ellagic acid (EA) were investigated. METHOD sAD mouse model was developed by intracerebroventricular (ICV) injection of Streptozotocin (STZ). The efficacy of EA, a naturally occurring polyphenol, in amelioration of anomalies associated with sAD was assessed. EA was administered once daily for 28 days at a dose of 75 mg/kg body weight followed by neurobehavioral, biochemical, molecular and neuronal count analysis to delineate the mode of action of EA. RESULT The ICV injection of STZ in mice significantly increased the expression of AD biomarkers in addition to enhanced oxidative stress. A decline in the discrimination index in Novel Object Recognition Test was observed indicating the compromise of recognition memory in AD. Studies on the expression of genes involved in synaptic plasticity reveal the dysregulation of the α-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor (AMPAR) of the glutamate and its scaffolding proteins in the postsynaptic density and thereby synaptic plasticity in AD. ICV-STZ led to significant upregulation of apoptotic markers which led to decrease in neuronal density of the cerebral cortex. EA significantly reversed the above and improved anomalies of sAD. CONCLUSION EA was observed to profoundly modulate the genes involved in AD pathophysiology, restored antioxidant enzymes activity, reduced lipid peroxidation and neuronal loss in the sAD brain. Further, EA was observed to effectively modulate the genes involved in apoptosis and synaptic plasticity. Therefore, EA possesses promising anti-AD properties, which may improve AD-associated anomalies by modulating synaptic plasticity via AMPAR signaling.
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Affiliation(s)
- Nidhi Anand K Singh
- Biochemistry and Molecular Biology Laboratory, Centre of Advanced Study in Zoology, Institute of Science, Banaras Hindu University, Varanasi, 211005, Uttar Pradesh, India
| | - S Prasad
- Biochemistry and Molecular Biology Laboratory, Centre of Advanced Study in Zoology, Institute of Science, Banaras Hindu University, Varanasi, 211005, Uttar Pradesh, India.
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Wu Y, Ke J, Ye S, Shan LL, Xu S, Guo SF, Li MT, Qiao TC, Peng ZY, Wang YL, Liu MY, Wang H, Feng JF, Han Y. 3D Visualization of Whole Brain Vessels and Quantification of Vascular Pathology in a Chronic Hypoperfusion Model Causing White Matter Damage. Transl Stroke Res 2024; 15:659-671. [PMID: 37222915 DOI: 10.1007/s12975-023-01157-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 05/02/2023] [Accepted: 05/11/2023] [Indexed: 05/25/2023]
Abstract
Chronic cerebral hypoperfusion is an important pathological factor in many neurodegenerative diseases, such as cerebral small vessel disease (CSVD). One of the most used animal models for chronic cerebral hypoperfusion is the bilateral common carotid artery stenosis (BCAS) mouse. For the therapy of CSVD and other diseases, it will be beneficial to understand the pathological alterations of the BCAS mouse, particularly vascular pathological changes. A mouse model of BCAS was used, and 8 weeks later, cognitive function of the mice was examined by using novel object recognition test and eight-arm radial maze test. 11.7 T magnetic resonance imaging (MRI) and luxol fast blue staining were used to evaluate the injury of the corpus callosum (CC), anterior commissure (AC), internal capsule (IC), and optic tract (Opt) in the cerebral white matter of mice. Three-dimensional vascular images of the whole brain of mice were acquired using fluorescence micro-optical sectioning tomography (fMOST) with a high resolution of 0.32 × 0.32 × 1.00 μm3. Then, the damaged white matter regions were further extracted to analyze the vessel length density, volume fraction, tortuosity, and the number of vessels of different internal diameters. The mouse cerebral caudal rhinal vein was also extracted and analyzed for its branch number and divergent angle in this study. BCAS modeling for 8 weeks resulted in impaired spatial working memory, reduced brain white matter integrity, and myelin degradation in mice, and CC showed the most severe white matter damage. 3D revascularization of the whole mouse brain showed that the number of large vessels was reduced and the number of small vessels was increased in BCAS mice. Further analysis revealed that the vessel length density and volume fraction in the damaged white matter region of BCAS mice were significantly reduced, and the vascular lesions were most noticeable in the CC. At the same time, the number of small vessels in the above white matter regions was significantly reduced, while the number of microvessels was significantly increased in BCAS mice, and the vascular tortuosity was also significantly increased. In addition, the analysis of caudal rhinal vein extraction revealed that the number of branches and the average divergent angle in BCAS mice were significantly reduced. The BCAS modeling for 8 weeks will lead to vascular lesions in whole brain of mice, and the caudal nasal vein was also damaged, while BCAS mice mainly mitigated the damages by increasing microvessels. What is more, the vascular lesions in white matter of mouse brain can cause white matter damage and spatial working memory deficit. These results provide evidence for the vascular pathological alterations caused by chronic hypoperfusion.
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Affiliation(s)
- Yang Wu
- Department of Neurology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, 110 Ganhe Road, Shanghai, 200437, China
| | - Jia Ke
- Department of Neurology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, 110 Ganhe Road, Shanghai, 200437, China
| | - Song Ye
- Wuhan OE-Bio Co., Ltd., G2 zone, Future City 999, Gaoxin boulevard East Lake High-Tech Development zone, Wuhan, 430074, China
| | - Li-Li Shan
- Department of Neurology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, 110 Ganhe Road, Shanghai, 200437, China
| | - Shuai Xu
- Institute of Science and Technology for Brain-Inspired Intelligence, Fudan University, 825 Zhangheng Road, Shanghai, 200127, China
| | - Shu-Fen Guo
- Department of Neurology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, 110 Ganhe Road, Shanghai, 200437, China
| | - Meng-Ting Li
- Department of Neurology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, 110 Ganhe Road, Shanghai, 200437, China
| | - Tian-Ci Qiao
- Department of Neurology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, 110 Ganhe Road, Shanghai, 200437, China
| | - Zheng-Yu Peng
- Department of Neurology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, 110 Ganhe Road, Shanghai, 200437, China
| | - Yi-Lin Wang
- Georgetown Preparatory School, Washington, DC, USA
| | - Ming-Yuan Liu
- Department of Neurology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, 110 Ganhe Road, Shanghai, 200437, China
| | - He Wang
- Institute of Science and Technology for Brain-Inspired Intelligence, Fudan University, 825 Zhangheng Road, Shanghai, 200127, China.
| | - Jian-Feng Feng
- Institute of Science and Technology for Brain-Inspired Intelligence, Fudan University, 825 Zhangheng Road, Shanghai, 200127, China.
| | - Yan Han
- Department of Neurology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, 110 Ganhe Road, Shanghai, 200437, China.
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10
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Cai Y, Wang LW, Wu J, Chen ZW, Yu XF, Liu FH, Gao DP. Fasudil alleviates alcohol-induced cognitive deficits and hippocampal morphology injury partly by altering the assembly of the actin cytoskeleton and microtubules. Behav Brain Res 2024; 471:115068. [PMID: 38830386 DOI: 10.1016/j.bbr.2024.115068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 05/07/2024] [Accepted: 05/22/2024] [Indexed: 06/05/2024]
Abstract
Alcohol-Related Brain Damage (ARBD) manifests predominantly as cognitive impairment and brain atrophy with the hippocampus showing particular vulnerability. Fasudil, a Rho kinase (ROCK) inhibitor, has established neuroprotective properties; however, its impact on alcohol-induced cognitive dysfunction and hippocampal structural damage remains unelucidated. This study probes Fasudil's neuroprotective potential and identifies its mechanism of action in an in vivo context. Male C57BL/6 J mice were exposed to 30% (v/v, 6.0 g/kg) ethanol by intragastric administration for four weeks. Concurrently, these mice received a co-treatment with Fasudil through intraperitoneal injections at a dosage of 10 mg/kg/day. Fasudil was found to mitigate alcohol-induced spatial and recognition memory deficits, which were quantified using Y maze, Morris water maze, and novel object recognition tests. Concurrently, Fasudil attenuated hippocampal structural damage prompted by chronic alcohol exposure. Notably, Fasudil moderated alcohol-induced disassembly of the actin cytoskeleton and microtubules-mechanisms central to the maintenance of hippocampal synaptic integrity. Collectively, our findings indicate that Fasudil partially reverses alcohol-induced cognitive and morphological detriments by modulating cytoskeletal dynamics, offering insights into potential therapeutic strategies for ARBD.
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Affiliation(s)
- Yu Cai
- Department of Pharmacy, Zhejiang Pharmaceutical University, 666 Siming Rd, Ningbo, Zhejiang 315500, PR China
| | - Lu-Wan Wang
- School of Medical, Ningbo University, 818 Fenghua Rd, Ningbo, Zhejiang 315211, PR China
| | - Jing Wu
- Department of Pharmacy, Zhejiang Pharmaceutical University, 666 Siming Rd, Ningbo, Zhejiang 315500, PR China
| | - Zi-Wei Chen
- Department of Pharmacy, Zhejiang Pharmaceutical University, 666 Siming Rd, Ningbo, Zhejiang 315500, PR China
| | - Xue-Feng Yu
- Department of Pharmacy, Zhejiang Pharmaceutical University, 666 Siming Rd, Ningbo, Zhejiang 315500, PR China
| | - Fu-He Liu
- Department of Pharmacy, Zhejiang Pharmaceutical University, 666 Siming Rd, Ningbo, Zhejiang 315500, PR China
| | - Da-Peng Gao
- Department of Neurology, The First Affiliated Hospital of Ningbo University, 247 Renmin Rd, Ningbo, Zhejiang 315020, PR China.
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11
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De la Torre K, Cerbón MA, Molina-Salinas G, Suárez-Santiago JE, Morin JP, Roldán-Roldán G, Picazo O. Synergistic neuroprotective action of prolactin and 17β-estradiol on kainic acid-induced hippocampal injury and long-term memory deficit in ovariectomized rats. Hormones (Athens) 2024; 23:321-329. [PMID: 38625627 DOI: 10.1007/s42000-024-00551-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 03/19/2024] [Indexed: 04/17/2024]
Abstract
PURPOSE The neuroprotective actions of the ovarian hormone 17β-estradiol (E2) against different brain lesions have been constantly confirmed in a variety of models including kainic acid (KA) lesions. Similarly, the pituitary hormone prolactin (PRL), traditionally associated with lactogenesis, has recently been linked to a large diversity of functions, including neurogenesis, neuroprotection, and cognitive processes. While the mechanisms of actions of E2 as regards its neuroprotective and behavioral effects have been extensively explored, the molecular mechanisms of PRL related to these roles remain under investigation. The current study aimed to investigate whether the simultaneous administration of PRL and a low dose of E2 prevents the KA-induced cognitive deficit and if this action is associated with changes in hippocampal neuronal density. METHODS Ovariectomized (OVX) rats were treated with saline, PRL, and/or E2 in the presence or absence of KA. Neuroprotection was assessed by Nissl staining and neuron counting. Memory was evaluated with the novel object recognition test (NOR). RESULTS On their own, both PRL and E2 prevented short- and long-term memory deficits in lesioned animals and exerted neuroprotection against KA-induced excitotoxicity in the hippocampus. Interestingly, the combined hormonal treatment was superior to either of the treatments administered alone as regards improving both memory and neuronal survival. CONCLUSION Taken together, these results point to a synergic effect of E2 and PRL in the hippocampus to produce their behavioral, proliferative, and neuroprotective effects.
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Affiliation(s)
- Karen De la Torre
- Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón s/n, Col. Sto. Tomás, 11340. Ciudad de México, Ciudad de México, México
| | - Marco Antonio Cerbón
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Gladys Molina-Salinas
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - José Eduardo Suárez-Santiago
- Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón s/n, Col. Sto. Tomás, 11340. Ciudad de México, Ciudad de México, México
- Facultad de Medicina Humana, Universidad Autónoma de Chiapas, Tuxtla Gutiérrez, Chiapas, Mexico
| | - Jean-Pascal Morin
- Departamento de Fisiología, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Gabriel Roldán-Roldán
- Departamento de Fisiología, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, México.
| | - Ofir Picazo
- Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón s/n, Col. Sto. Tomás, 11340. Ciudad de México, Ciudad de México, México.
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12
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Guarino A, Pignata P, Lovisari F, Asth L, Simonato M, Soukupova M. Cognitive comorbidities in the rat pilocarpine model of epilepsy. Front Neurol 2024; 15:1392977. [PMID: 38872822 PMCID: PMC11171745 DOI: 10.3389/fneur.2024.1392977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 04/30/2024] [Indexed: 06/15/2024] Open
Abstract
Patients with epilepsy are prone to cognitive decline, depression, anxiety and other behavioral disorders. Cognitive comorbidities are particularly common and well-characterized in people with temporal lobe epilepsy, while inconsistently addressed in epileptic animals. Therefore, the aim of this study was to ascertain whether there is good evidence of cognitive comorbidities in animal models of epilepsy, in particular in the rat pilocarpine model of temporal lobe epilepsy. We searched the literature published between 1990 and 2023. The association of spontaneous recurrent seizures induced by pilocarpine with cognitive alterations has been evaluated by using various tests: contextual fear conditioning (CFC), novel object recognition (NOR), radial and T-maze, Morris water maze (MWM) and their variants. Combination of results was difficult because of differences in methodological standards, in number of animals employed, and in outcome measures. Taken together, however, the analysis confirmed that pilocarpine-induced epilepsy has an effect on cognition in rats, and supports the notion that this is a valid model for assessment of cognitive temporal lobe epilepsy comorbidities in preclinical research.
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Affiliation(s)
- Annunziata Guarino
- Department of Neuroscience and Rehabilitation, Section of Pharmacology, University of Ferrara, Ferrara, Italy
| | - Paola Pignata
- Department of Neuroscience and Rehabilitation, Section of Pharmacology, University of Ferrara, Ferrara, Italy
| | - Francesca Lovisari
- Department of Neuroscience and Rehabilitation, Section of Pharmacology, University of Ferrara, Ferrara, Italy
| | - Laila Asth
- Department of Neuroscience and Rehabilitation, Section of Pharmacology, University of Ferrara, Ferrara, Italy
| | - Michele Simonato
- Department of Neuroscience and Rehabilitation, Section of Pharmacology, University of Ferrara, Ferrara, Italy
- Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Marie Soukupova
- Department of Neuroscience and Rehabilitation, Section of Pharmacology, University of Ferrara, Ferrara, Italy
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13
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Ashraf AA, Aljuhani M, Hubens CJ, Jeandriens J, Parkes HG, Geraki K, Mahmood A, Herlihy AH, So PW. Inflammation subsequent to mild iron excess differentially alters regional brain iron metabolism, oxidation and neuroinflammation status in mice. Front Aging Neurosci 2024; 16:1393351. [PMID: 38836051 PMCID: PMC11148467 DOI: 10.3389/fnagi.2024.1393351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 04/26/2024] [Indexed: 06/06/2024] Open
Abstract
Iron dyshomeostasis and neuroinflammation, characteristic features of the aged brain, and exacerbated in neurodegenerative disease, may induce oxidative stress-mediated neurodegeneration. In this study, the effects of potential priming with mild systemic iron injections on subsequent lipopolysaccharide (LPS)-induced inflammation in adult C57Bl/6J mice were examined. After cognitive testing, regional brain tissues were dissected for iron (metal) measurements by total reflection X-ray fluorescence and synchrotron radiation X-Ray fluorescence-based elemental mapping; and iron regulatory, ferroptosis-related, and glia-specific protein analysis, and lipid peroxidation by western blotting. Microglial morphology and astrogliosis were assessed by immunohistochemistry. Iron only treatment enhanced cognitive performance on the novel object location task compared with iron priming and subsequent LPS-induced inflammation. LPS-induced inflammation, with or without iron treatment, attenuated hippocampal heme oxygenase-1 and augmented 4-hydroxynonenal levels. Conversely, in the cortex, elevated ferritin light chain and xCT (light chain of System Xc-) were observed in response to LPS-induced inflammation, without and with iron-priming. Increased microglial branch/process lengths and astrocyte immunoreactivity were also increased by combined iron and LPS in both the hippocampus and cortex. Here, we demonstrate iron priming and subsequent LPS-induced inflammation led to iron dyshomeostasis, compromised antioxidant function, increased lipid peroxidation and altered neuroinflammatory state in a brain region-dependent manner.
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Affiliation(s)
- Azhaar Ahmad Ashraf
- Department of Neuroimaging, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom
| | - Manal Aljuhani
- Department of Neuroimaging, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom
| | - Chantal J Hubens
- Department of Neuroimaging, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom
| | - Jérôme Jeandriens
- Department of Neuroimaging, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom
- Department of Human Biology and Toxicology, Faculty of Medicine, University of Mons, Mons, Belgium
| | - Harold G Parkes
- Department of Neuroimaging, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom
| | - Kalotina Geraki
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, United Kingdom
| | - Ayesha Mahmood
- Department of Neuroimaging, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom
| | | | - Po-Wah So
- Department of Neuroimaging, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom
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14
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Qiu O, Zhao J, Shi Z, Li H, Wang S, Liao K, Tang M, Xie J, Huang X, Zhang W, Zhou L, Yang X, Zhou Z, Xu L, Huang R, Miao Y, Qiu Y, Lin Y. Asparagine endopeptidase deficiency mitigates radiation-induced brain injury by suppressing microglia-mediated neuronal senescence. iScience 2024; 27:109698. [PMID: 38655198 PMCID: PMC11035374 DOI: 10.1016/j.isci.2024.109698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 04/05/2024] [Accepted: 04/05/2024] [Indexed: 04/26/2024] Open
Abstract
Mounting evidence supports the role of neuroinflammation in radiation-induced brain injury (RIBI), a chronic disease characterized by delayed and progressive neurological impairment. Asparagine endopeptidase (AEP), also known as legumain (LGMN), participates in multiple malignancies and neurodegenerative diseases and may potentially be involved in RIBI. Here, we found AEP expression was substantially elevated in the cortex and hippocampus of wild-type (Lgmn+/+) mice following whole-brain irradiation. Lgmn knockout (Lgmn-/-) alleviated neurological impairment caused by whole-brain irradiation by suppressing neuronal senescence. Bulk RNA and metabolomic sequencing revealed AEP's involvement in the antigen processing and presentation pathway and neuroinflammation. This was further confirmed by co-culturing Lgmn+/+ primary neurons with the conditioned media derived from irradiated Lgmn+/+ or Lgmn-/- primary microglia. Furthermore, esomeprazole inhibited the enzymatic activity of AEP and RIBI. These findings identified AEP as a critical factor of neuroinflammation in RIBI, highlighting the prospect of targeting AEP as a therapeutic approach.
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Affiliation(s)
- Ouwen Qiu
- Brain Injury Center, Shanghai Institute of Head Trauma, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, P.R. China
| | - Jianyi Zhao
- Brain Injury Center, Shanghai Institute of Head Trauma, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, P.R. China
| | - Zhonggang Shi
- Brain Injury Center, Shanghai Institute of Head Trauma, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, P.R. China
| | - Huan Li
- Department of Radiation Oncology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, P.R. China
| | - Siyuan Wang
- Brain Injury Center, Shanghai Institute of Head Trauma, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, P.R. China
| | - Keman Liao
- Brain Injury Center, Shanghai Institute of Head Trauma, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, P.R. China
| | - Minchao Tang
- Department of Hepatobiliary Surgery, Guangxi Medical University Cancer Hospital, Guangxi 530021, P.R. China
| | - Jieqiong Xie
- Department of Neurology, The Second Affiliated Hospital of Guangxi Medical University, Guangxi 530007, P.R. China
| | - Xi Huang
- Department of Digestive Oncology, Guangxi Medical University Cancer Hospital, Guangxi 530021, P.R. China
| | - Wenrui Zhang
- Brain Injury Center, Shanghai Institute of Head Trauma, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, P.R. China
| | - Li Zhou
- Brain Injury Center, Shanghai Institute of Head Trauma, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, P.R. China
| | - Xi Yang
- Brain Injury Center, Shanghai Institute of Head Trauma, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, P.R. China
| | - Zhiyi Zhou
- Brain Injury Center, Shanghai Institute of Head Trauma, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, P.R. China
| | - Lei Xu
- Department of Radiation, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, P.R. China
| | - Renhua Huang
- Department of Radiation, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, P.R. China
| | - Yifeng Miao
- Department of Neurosurgery, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, P.R. China
| | - Yongming Qiu
- Brain Injury Center, Shanghai Institute of Head Trauma, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, P.R. China
| | - Yingying Lin
- Brain Injury Center, Shanghai Institute of Head Trauma, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, P.R. China
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15
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Qin Y, Huang W, Wang Z, Wang C, Wang C, Zhang M, Wu S, Wang G, Zhao F. 1,2-Dichloroethane causes anxiety and cognitive dysfunction in mice by disturbing GABA metabolism and inhibiting the cAMP-PKA-CREB signaling pathway. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 279:116464. [PMID: 38759534 DOI: 10.1016/j.ecoenv.2024.116464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 04/09/2024] [Accepted: 05/12/2024] [Indexed: 05/19/2024]
Abstract
1,2-Dichloroethane (1,2-DCE) is a powerfully toxic neurotoxin, which is a common environmental pollutant. Studies have indicated that 1,2-DCE long-term exposure can result in adverse effects. Nevertheless, the precise mechanism remains unknown. In this study, behavioral results revealed that 1,2-DCE long-term exposure could cause anxiety and learning and memory ability impairment in mice. The contents of γ-aminobutyric acid (GABA) and glutamine (Gln) in mice's prefrontal cortex decreased, whereas that of glutamate (Glu) increased. With the increase in dose, the activities of glutamate decarboxylase (GAD) decreased and those of GABA transaminase (GABA-T) increased. The protein and mRNA expressions of GABA transporter-3 (GAT-3), vesicular GABA transporter (VGAT), GABA A receptor α2 (GABAARα2), GABAARγ2, K-Cl cotransporter isoform 2 (KCC2), GABA B receptor 1 (GABABR1), GABABR2, protein kinase A (PKA), cAMP-response element binding protein (CREB), p-CREB, brain-derived neurotrophic factor (BDNF), c-fos, c-Jun and the protein of glutamate dehydrogenase (GDH) and PKA-C were decreased, while the expression levels of GABA transporter-1 (GAT-1) and Na-K-2Cl cotransporter isoform 1 (NKCC1) were increased. However, there was no significant change in the protein content of succinic semialdehyde dehydrogenase (SSADH). The expressions of adenylate cyclase (AC) and cyclic adenosine monophosphate (cAMP) contents were also reduced. In conclusion, the results of this study show that exposure to 1,2-DCE could lead to anxiety and cognitive impairment in mice, which may be related to the disturbance of GABA metabolism and its receptors along with the cAMP-PKA-CREB pathway.
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Affiliation(s)
- Yuchen Qin
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, Liaoning, People's Republic of China; Department of Occupational and Environmental Health, School of Public Health, China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Weiyu Huang
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, Liaoning, People's Republic of China; Department of Occupational and Environmental Health, School of Public Health, China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Zijiang Wang
- Liaoning Provincial Center for Disease Control and Prevention, Shenyang, Liaoning, People's Republic of China
| | - Chunting Wang
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, Liaoning, People's Republic of China; Department of Occupational and Environmental Health, School of Public Health, China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Chen Wang
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, Liaoning, People's Republic of China; Department of Occupational and Environmental Health, School of Public Health, China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Meng Zhang
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, Liaoning, People's Republic of China; Department of Occupational and Environmental Health, School of Public Health, China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Shengting Wu
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, Liaoning, People's Republic of China; Department of Occupational and Environmental Health, School of Public Health, China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Gaoyang Wang
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, Liaoning, People's Republic of China; Department of Occupational and Environmental Health, School of Public Health, China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Fenghong Zhao
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, Liaoning, People's Republic of China; Department of Occupational and Environmental Health, School of Public Health, China Medical University, Shenyang, Liaoning, People's Republic of China.
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16
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Gray NE, Hack W, Brandes MS, Zweig JA, Yang L, Marney L, Choi J, Magana AA, Cerruti N, McFerrin J, Koike S, Nguyen T, Raber J, Quinn JF, Maier CS, Soumyanath A. Amelioration of age-related cognitive decline and anxiety in mice by Centella asiatica extract varies by sex, dose and mode of administration. FRONTIERS IN AGING 2024; 5:1357922. [PMID: 38770167 PMCID: PMC11102990 DOI: 10.3389/fragi.2024.1357922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 04/10/2024] [Indexed: 05/22/2024]
Abstract
Background: A water extract (CAW) of the Ayurvedic plant Centella asiatica administered in drinking water has been shown to improve cognitive deficits in mouse models of aging and neurodegenerative diseases. Here the effects of CAW administered in drinking water or the diet on cognition, measures of anxiety and depression-like behavior in healthy aged mice are compared. Methods: Three- and eighteen-month-old male and female C57BL6 mice were administered rodent AIN-93M diet containing CAW (0, 0.2, 0.5 or 1% w/w) to provide 0, 200 mg/kg/d, 500 mg/kg/d or 1,000 mg/kg/d CAW for a total of 5 weeks. An additional group of eighteen-month-old mice were treated with CAW (10 mg/mL) in their drinking water CAW for a total of 5 weeks to deliver the same exposure of CAW as the highest dietary dose (1,000 mg/kg/d). CAW doses delivered were calculated based on food and water consumption measured in previous experiments. In the fourth and fifth weeks, mice underwent behavioral testing of cognition, anxiety and depression (n = 12 of each sex per treatment group in each test). Results: Aged mice of both sexes showed cognitive deficits relative to young mice while only female aged mice showed increased anxiety compared to the young female mice and no differences in depression were observed between the different ages. CAW (1,000 mg/kg/d) in the drinking water improved deficits in aged mice in learning, executive function and recognition memory in both sexes and attenuated the increased measures of anxiety observed in the aged female mice. However, CAW in the diet only improved executive function in aged mice at the highest dose (1,000 mg/kg/d) in both sexes and did so less robustly than when given in the water. There were no effects of CAW on depression-like behavior in aged animals regardless of whether it was administered in the diet or the water. Conclusions: These results suggest that CAW can ameliorate age-related changes in measures of anxiety and cognition and that the mode of administration is important for the effects of CAW on resilience to these age-related changes.
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Affiliation(s)
- Nora E. Gray
- BENFRA Botanical Dietary Supplements Research Center, Oregon Health & Science University, Portland, OR, United States
- Department of Neurology, Oregon Health & Science University, Portland, OR, United States
| | - Wyatt Hack
- BENFRA Botanical Dietary Supplements Research Center, Oregon Health & Science University, Portland, OR, United States
- Department of Neurology, Oregon Health & Science University, Portland, OR, United States
| | - Mikah S. Brandes
- BENFRA Botanical Dietary Supplements Research Center, Oregon Health & Science University, Portland, OR, United States
- Department of Neurology, Oregon Health & Science University, Portland, OR, United States
| | - Jonathan A. Zweig
- BENFRA Botanical Dietary Supplements Research Center, Oregon Health & Science University, Portland, OR, United States
- Department of Neurology, Oregon Health & Science University, Portland, OR, United States
| | - Liping Yang
- BENFRA Botanical Dietary Supplements Research Center, Oregon Health & Science University, Portland, OR, United States
- Department of Chemistry, Oregon State University, Corvallis, OR, United States
| | - Luke Marney
- BENFRA Botanical Dietary Supplements Research Center, Oregon Health & Science University, Portland, OR, United States
- Department of Chemistry, Oregon State University, Corvallis, OR, United States
| | - Jaewoo Choi
- BENFRA Botanical Dietary Supplements Research Center, Oregon Health & Science University, Portland, OR, United States
- Department of Chemistry, Oregon State University, Corvallis, OR, United States
| | - Armando Alcazar Magana
- BENFRA Botanical Dietary Supplements Research Center, Oregon Health & Science University, Portland, OR, United States
- Department of Chemistry, Oregon State University, Corvallis, OR, United States
| | - Natasha Cerruti
- BENFRA Botanical Dietary Supplements Research Center, Oregon Health & Science University, Portland, OR, United States
- Oregon’s Wild Harvest, Redmond, OR, United States
| | - Janis McFerrin
- BENFRA Botanical Dietary Supplements Research Center, Oregon Health & Science University, Portland, OR, United States
- Oregon’s Wild Harvest, Redmond, OR, United States
| | - Seiji Koike
- BENFRA Botanical Dietary Supplements Research Center, Oregon Health & Science University, Portland, OR, United States
- School of Public Health, Oregon Health & Science University-Portland State University, Portland, OR, United States
| | - Thuan Nguyen
- BENFRA Botanical Dietary Supplements Research Center, Oregon Health & Science University, Portland, OR, United States
- School of Public Health, Oregon Health & Science University-Portland State University, Portland, OR, United States
| | - Jacob Raber
- BENFRA Botanical Dietary Supplements Research Center, Oregon Health & Science University, Portland, OR, United States
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, United States
| | - Joseph F. Quinn
- BENFRA Botanical Dietary Supplements Research Center, Oregon Health & Science University, Portland, OR, United States
- Department of Neurology, Oregon Health & Science University, Portland, OR, United States
- Parkinson’s Disease Research Education and Clinical Care Center, Veterans’ Administration Portland Healthcare System, Portland, OR, United States
| | - Claudia S. Maier
- BENFRA Botanical Dietary Supplements Research Center, Oregon Health & Science University, Portland, OR, United States
- Department of Chemistry, Oregon State University, Corvallis, OR, United States
- Linus Pauling Institute, Oregon State University, Corvallis, OR, United States
| | - Amala Soumyanath
- BENFRA Botanical Dietary Supplements Research Center, Oregon Health & Science University, Portland, OR, United States
- Department of Neurology, Oregon Health & Science University, Portland, OR, United States
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17
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Stabile F, Torromino G, Rajendran S, Del Vecchio G, Presutti C, Mannironi C, De Leonibus E, Mele A, Rinaldi A. Short-Term Memory Deficit Associates with miR-153-3p Upregulation in the Hippocampus of Middle-Aged Mice. Mol Neurobiol 2024; 61:3031-3041. [PMID: 37964090 DOI: 10.1007/s12035-023-03770-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 11/03/2023] [Indexed: 11/16/2023]
Abstract
The early stages of ageing are a critical time window in which the ability to detect and identify precocious molecular and cognitive markers can make the difference in determining a healthy vs unhealthy course of ageing. Using the 6-different object task (6-DOT), a highly demanding hippocampal-dependent recognition memory task, we classified a population of middle-aged (12-month-old) CD1 male mice in Impaired and Unimpaired based on their short-term memory. This approach led us to identify a different microRNAs expression profile in the hippocampus of Impaired mice compared to Unimpaired ones. Among the dysregulated microRNAs, miR-153-3p was upregulated in the hippocampus of Impaired mice and appeared of high interest for its putative target genes and their possible implication in memory-related synaptic plasticity. We showed that intra-hippocampal injection of the miR-153-3p mimic in adult (3-month-old) mice is sufficient to induce a short-term memory deficit similar to that observed in middle-aged Impaired mice. Overall, these findings unravel a novel role for hippocampal miR-153-3p in modulating short-term memory that could be exploited to prevent early cognitive deficits in ageing.
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Affiliation(s)
- Francesca Stabile
- Department of Biology and Biotechnologies "Charles Darwin" (BBCD), Sapienza University of Rome, Rome, Italy
- Centre for Research in Neurobiology Daniel Bovet (CRiN), Sapienza University of Rome, Rome, Italy
| | - G Torromino
- Department of Biology and Biotechnologies "Charles Darwin" (BBCD), Sapienza University of Rome, Rome, Italy
- Department of Humanistic Studies, University of Naples Federico II, Naples, Italy
| | - S Rajendran
- Department of Biology and Biotechnologies "Charles Darwin" (BBCD), Sapienza University of Rome, Rome, Italy
- Centre for Research in Neurobiology Daniel Bovet (CRiN), Sapienza University of Rome, Rome, Italy
| | - G Del Vecchio
- Department of Biology and Biotechnologies "Charles Darwin" (BBCD), Sapienza University of Rome, Rome, Italy
| | - C Presutti
- Department of Biology and Biotechnologies "Charles Darwin" (BBCD), Sapienza University of Rome, Rome, Italy
| | - C Mannironi
- Institute of Molecular Biology and Pathology, c/o Department of Biology and Biotechnology, National Research Council, Sapienza University of Rome, Rome, Italy
| | - E De Leonibus
- Institute of Biochemistry and Cell Biology, National Research Council (IBBC-CNR), Monterotondo (Rome), Italy
- Telethon Institute of Genetics and Medicine (TIGEM), Pozzuoli (Naples), Italy
| | - A Mele
- Department of Biology and Biotechnologies "Charles Darwin" (BBCD), Sapienza University of Rome, Rome, Italy.
- Centre for Research in Neurobiology Daniel Bovet (CRiN), Sapienza University of Rome, Rome, Italy.
| | - A Rinaldi
- Department of Biology and Biotechnologies "Charles Darwin" (BBCD), Sapienza University of Rome, Rome, Italy.
- Centre for Research in Neurobiology Daniel Bovet (CRiN), Sapienza University of Rome, Rome, Italy.
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18
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Moghazy HM, Abdelhaliem NG, Mohammed SA, Hassan A, Abdelrahman A. Liraglutide versus pramlintide in protecting against cognitive function impairment through affecting PI3K/AKT/GSK-3β/TTBK1 pathway and decreasing Tau hyperphosphorylation in high-fat diet- streptozocin rat model. Pflugers Arch 2024; 476:779-795. [PMID: 38536493 PMCID: PMC11033245 DOI: 10.1007/s00424-024-02933-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 02/13/2024] [Accepted: 02/22/2024] [Indexed: 04/05/2024]
Abstract
The American Diabetes Association guidelines (2021) confirmed the importance of raising public awareness of diabetes-induced cognitive impairment, highlighting the links between poor glycemic control and cognitive impairment. The characteristic brain lesions of cognitive dysfunction are neurofibrillary tangles (NFT) and senile plaques formed of amyloid-β deposition, glycogen synthase kinase 3 beta (GSK3β), and highly homologous kinase tau tubulin kinase 1 (TTBK1) can phosphorylate Tau proteins at different sites, overexpression of these enzymes produces extensive phosphorylation of Tau proteins making them insoluble and enhance NFT formation, which impairs cognitive functions. The current study aimed to investigate the potential contribution of liraglutide and pramlintide in the prevention of diabetes-induced cognitive dysfunction and their effect on the PI3K/AKT/GSK-3β/TTBK1 pathway in type 2 diabetic (T2D) rat model. T2D was induced by administration of a high-fat diet for 10 weeks, then injection of a single dose of streptozotocin (STZ); treatment was started with either pramlintide (200 μg/kg/day sc) or liraglutide (0.6 mg/kg/day sc) for 6 weeks in addition to the HFD. At the end of the study, cognitive functions were assessed by novel object recognition and T-maze tests. Then, rats were sacrificed for biochemical and histological assessment of the hippocampal tissue. Both pramlintide and liraglutide treatment revealed equally adequate control of diabetes, prevented the decline in memory function, and increased PI3K/AKT expression while decreasing GSK-3β/TTBK1 expression; however, liraglutide significantly decreased the number of Tau positive cells better than pramlintide did. This study confirmed that pramlintide and liraglutide are promising antidiabetic medications that could prevent associated cognitive disorders in different mechanisms.
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Affiliation(s)
- Hoda M Moghazy
- Department of Physiology, Faculty of Medicine, Sohag University, Sohag, 82524, Egypt
| | | | | | - Asmaa Hassan
- Department of Physiology, Faculty of Medicine, Sohag University, Sohag, 82524, Egypt
| | - Amany Abdelrahman
- Department of Physiology, Faculty of Medicine, Sohag University, Sohag, 82524, Egypt.
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19
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Qin Y, Zhao Y, Hu X, Chen X, Jiang YP, Jin XJ, Li G, Li ZH, Yang JH, Zhang GL, Cui SY, Zhang YH. Ganoderma lucidum spore extract improves sleep disturbances in a rat model of sporadic Alzheimer's disease. Front Pharmacol 2024; 15:1390294. [PMID: 38720773 PMCID: PMC11076761 DOI: 10.3389/fphar.2024.1390294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Accepted: 04/09/2024] [Indexed: 05/12/2024] Open
Abstract
Introduction: Ganoderma lucidum (G. lucidum, Lingzhi) has long been listed as a premium tonic that can be used to improve restlessness, insomnia, and forgetfulness. We previously reported that a rat model of sporadic Alzheimer's disease (sAD) that was induced by an intracerebroventricular injection of streptozotocin (ICV-STZ) showed significant learning and cognitive deficits and sleep disturbances. Treatment with a G. lucidum spore extract with the sporoderm removed (RGLS) prevented learning and memory impairments in sAD model rats. Method: The present study was conducted to further elucidate the preventive action of RGLS on sleep disturbances in sAD rats by EEG analysis, immunofluorescence staining, HPLC-MS/MS and Western blot. Results: Treatment with 720 mg/kg RGLS for 14 days significantly improved the reduction of total sleep time, rapid eye movement (REM) sleep time, and non-REM sleep time in sAD rats. The novelty recognition experiment further confirmed that RGLS prevented cognitive impairments in sAD rats. We also found that RGLS inhibited the nuclear factor-κB (NF-κB)/Nod-like receptor family pyrin domain-containing 3 (NLRP3) inflammatory pathway in the medial prefrontal cortex (mPFC) in sAD rats and ameliorated the lower activity of γ-aminobutyric acid (GABA)-ergic neurons in the parabrachial nucleus (PBN). Discussion: These results suggest that inhibiting the neuroinflammatory response in the mPFC may be a mechanism by which RGLS improves cognitive impairment. Additionally, improvements in PBN-GABAergic activity and the suppression of neuroinflammation in the mPFC in sAD rats might be a critical pathway to explain the preventive effects of RGLS on sleep disturbances in sAD.
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Affiliation(s)
- Yu Qin
- Department of Pharmacology, School of Basic Medical Science, Peking University, Beijing, China
| | - Yan Zhao
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, China
- Department of Pharmacy, Yanbian University Hospital, Yanji, China
| | - Xiao Hu
- Department of Pharmacology, School of Basic Medical Science, Peking University, Beijing, China
| | - Xi Chen
- Department of Pharmacology, School of Basic Medical Science, Peking University, Beijing, China
| | - Yan-Ping Jiang
- Department of Pharmacy, Yanbian University Hospital, Yanji, China
| | - Xue-Jun Jin
- Department of Pharmacy, Yanbian University Hospital, Yanji, China
| | - Gao Li
- Department of Pharmacy, Yanbian University Hospital, Yanji, China
| | - Zhen-Hao Li
- Zhejiang ShouXianGu Pharmaceutical Co., Ltd., Wuyi, Zhejiang, China
| | - Ji-Hong Yang
- Zhejiang ShouXianGu Pharmaceutical Co., Ltd., Wuyi, Zhejiang, China
| | - Guo-Liang Zhang
- Zhejiang ShouXianGu Pharmaceutical Co., Ltd., Wuyi, Zhejiang, China
| | - Su-Ying Cui
- Department of Pharmacology, School of Basic Medical Science, Peking University, Beijing, China
| | - Yong-He Zhang
- Department of Pharmacology, School of Basic Medical Science, Peking University, Beijing, China
- Department of Pharmacy, Yanbian University Hospital, Yanji, China
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20
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Mansouri Z, Khodagholi F, Zaringhalam J, Abbaszadeh F, Ghasemi R, Maghsoudi N. Intranasal CEPO-FC prevents attention deficits in streptozotocin-induced rat model of Alzheimer's disease: Focus on synaptic plasticity-related factors. EXCLI JOURNAL 2024; 23:491-508. [PMID: 38741725 PMCID: PMC11089095 DOI: 10.17179/excli2023-6818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 04/17/2024] [Indexed: 05/16/2024]
Abstract
Alzheimer's disease remains an issue of great controversy due to its pathology. It is characterized by cognitive impairments and neuropsychiatric symptoms. The FDA approved medications for this disease, can only mitigate the symptoms. One reason for the lack of effective medications is the inaccessibility of the brain which is encompassed by the blood-brain barrier, making intranasal (IN) route of administration potentially advantageous. Male Wistar rats underwent stereotaxic surgery to induce an Alzheimer's disease model via intracerebroventricular (ICV) streptozotocin injection, and Carbamylated Erythropoietin-Fc (CEPO-FC), a derivative of Erythropoietin without its harmful characteristics, was administered intranasally for ten consecutive days. Cognition performance for memory and attention was assessed using the Novel Object Recognition Test and the Object-Based Attention Test respectively. Depression like behavior was evaluated using the Forced Swim Test. Western blotting was done on the extracted hippocampus to quantify STIM proteins. Calbindin, PSD-95, Neuroplastin, Synaptophysin and GAP-43 genes were assessed by Realtime PCR. Behavioral tests demonstrated that IN CEPO-FC could halt cognition deficits and molecular investigations showed that, STIM proteins were decreased in Alzheimer's model, and increased after IN CEPO-FC treatment. Calbindin and PSD-95 were downregulated in our disease model and upregulated when treated with IN CEPO-FC. While Neuroplastin, and GAP-43 expressions remained unchanged. This study suggests that IN CEPO-FC in low doses could be promising for improving cognition and synaptic plasticity deficits in Alzheimer's disease and since IN route of administration is a convenient way, choosing IN CEPO-FC for clinical trial might worth consideration. See also the graphical abstract(Fig. 1).
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Affiliation(s)
- Zahra Mansouri
- Neuroscience Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fariba Khodagholi
- Neuroscience Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Jalal Zaringhalam
- Neurophysiology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Department of Physiology, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fatemeh Abbaszadeh
- Neurobiology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Rasoul Ghasemi
- Neurophysiology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Department of Physiology, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Nader Maghsoudi
- Neuroscience Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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21
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Arozal W, Safutra MS, Barinda AJ, Hardi H, Dwita NC, Lee HJ. Comparative Neuroprotective Effects of Moringa oleifera Seed Oil and Aqueous Extract on Cognitive Functions on a High-Fat, High-Fructose Diet Mice: Focus on Senescence Markers. ScientificWorldJournal 2024; 2024:8034401. [PMID: 38633104 PMCID: PMC11022517 DOI: 10.1155/2024/8034401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 03/22/2024] [Accepted: 03/30/2024] [Indexed: 04/19/2024] Open
Abstract
Several studies have demonstrated that Moringa oleifera (MO) has different pharmacological properties, including neuroprotective effects. However, the role of MO in preventing brain impairment in high-fat, high-fructose diet (HFFD) remains unknown. This study aimed to investigate the neuroprotective effects of MO leaves aqueous extract (MOE) and moringa seed oil (MOO) against brain impairment in mice with HFFD. Twenty-eight male mice were randomly divided into four groups: normal diet, HFFD, HFFD + MOE 500 mg/kgBW, and HFFD + MOO 2 mL/kgBW. Cognitive function was assessed using the Y-maze and novel object recognition (NOR) tests. The p16, p21, and BDNF expressions were analyzed using the RT-PCR method. Senescence-associated beta-galactosidase (SA-β-gal) staining in the brain was also performed. The results showed that administration of MOE or MOO could increase the percentage of alternation and recognition of new objects, prevent the increase of p16 and p21 expression, and ameliorate SA-β-Gal activity in the brain. MOO, but not MOE, increased BDNF expression in senescence brains isolated from HFFD mice. The findings indicate that MOO and MOE possess neuroprotective properties, with MOO demonstrating a greater ability to inhibit the brain senescence process compared to MOE.
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Affiliation(s)
- Wawaimuli Arozal
- Department of Pharmacology and Therapeutics, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | | | - Agian Jeffilano Barinda
- Department of Pharmacology and Therapeutics, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
- Metabolic Cardiovascular and Aging Cluster, Indonesia Medical Education and Research Institute (IMERI), Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | - Harri Hardi
- Clinical Pharmacology Specialist Study Program, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | - Nounik Cheri Dwita
- Biomedical Sciences, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | - Hee J. Lee
- Department of Pharmacology, School of Medicine, Kangwon National University, Chuncheon, Republic of Korea
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22
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Deehan MA, Kothuis JM, Sapp E, Chase K, Ke Y, Seeley C, Iuliano M, Kim E, Kennington L, Miller R, Boudi A, Shing K, Li X, Pfister E, Anaclet C, Brodsky M, Kegel-Gleason K, Aronin N, DiFiglia M. Nacc1 Mutation in Mice Models Rare Neurodevelopmental Disorder with Underlying Synaptic Dysfunction. J Neurosci 2024; 44:e1610232024. [PMID: 38388424 PMCID: PMC10993038 DOI: 10.1523/jneurosci.1610-23.2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 01/05/2024] [Accepted: 02/03/2024] [Indexed: 02/24/2024] Open
Abstract
A missense mutation in the transcription repressor Nucleus accumbens-associated 1 (NACC1) gene at c.892C>T (p.Arg298Trp) on chromosome 19 causes severe neurodevelopmental delay ( Schoch et al., 2017). To model this disorder, we engineered the first mouse model with the homologous mutation (Nacc1+/R284W ) and examined mice from E17.5 to 8 months. Both genders had delayed weight gain, epileptiform discharges and altered power spectral distribution in cortical electroencephalogram, behavioral seizures, and marked hindlimb clasping; females displayed thigmotaxis in an open field. In the cortex, NACC1 long isoform, which harbors the mutation, increased from 3 to 6 months, whereas the short isoform, which is not present in humans and lacks aaR284 in mice, rose steadily from postnatal day (P) 7. Nuclear NACC1 immunoreactivity increased in cortical pyramidal neurons and parvalbumin containing interneurons but not in nuclei of astrocytes or oligodendroglia. Glial fibrillary acidic protein staining in astrocytic processes was diminished. RNA-seq of P14 mutant mice cortex revealed over 1,000 differentially expressed genes (DEGs). Glial transcripts were downregulated and synaptic genes upregulated. Top gene ontology terms from upregulated DEGs relate to postsynapse and ion channel function, while downregulated DEGs enriched for terms relating to metabolic function, mitochondria, and ribosomes. Levels of synaptic proteins were changed, but number and length of synaptic contacts were unaltered at 3 months. Homozygosity worsened some phenotypes including postnatal survival, weight gain delay, and increase in nuclear NACC1. This mouse model simulates a rare form of autism and will be indispensable for assessing pathophysiology and targets for therapeutic intervention.
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Affiliation(s)
- Mark A Deehan
- Department of Neurology, Massachusetts General Hospital, Charlestown, Massachusetts 02129
| | - Josine M Kothuis
- Department of Neurology, Massachusetts General Hospital, Charlestown, Massachusetts 02129
| | - Ellen Sapp
- Department of Neurology, Massachusetts General Hospital, Charlestown, Massachusetts 02129
| | - Kathryn Chase
- Department of Medicine, UMass Chan Medical School, Worcester, Massachusetts 01655
| | - Yuting Ke
- Department of Neurology, Massachusetts General Hospital, Charlestown, Massachusetts 02129
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
| | - Connor Seeley
- Department of Neurology, Massachusetts General Hospital, Charlestown, Massachusetts 02129
| | - Maria Iuliano
- Department of Neurology, Massachusetts General Hospital, Charlestown, Massachusetts 02129
| | - Emily Kim
- Department of Neurology, Massachusetts General Hospital, Charlestown, Massachusetts 02129
| | - Lori Kennington
- Department of Medicine, UMass Chan Medical School, Worcester, Massachusetts 01655
| | - Rachael Miller
- Department of Medicine, UMass Chan Medical School, Worcester, Massachusetts 01655
| | - Adel Boudi
- Department of Neurology, Massachusetts General Hospital, Charlestown, Massachusetts 02129
| | - Kai Shing
- Department of Neurology, Massachusetts General Hospital, Charlestown, Massachusetts 02129
| | - Xueyi Li
- Department of Neurology, Massachusetts General Hospital, Charlestown, Massachusetts 02129
| | - Edith Pfister
- Department of Medicine, UMass Chan Medical School, Worcester, Massachusetts 01655
- Program in Bioinformatics and Integrative Biology, UMass Chan Medical School, Worcester, Massachusetts 01655
| | - Christelle Anaclet
- Department of Neurological Surgery, University of California Davis School of Medicine, Davis, California 95817
| | - Michael Brodsky
- Department of Molecular, Cell and Cancer Biology, UMass Chan Medical School, Worcester, Massachusetts 01655
| | - Kimberly Kegel-Gleason
- Department of Neurology, Massachusetts General Hospital, Charlestown, Massachusetts 02129
| | - Neil Aronin
- Department of Medicine, UMass Chan Medical School, Worcester, Massachusetts 01655
| | - Marian DiFiglia
- Department of Neurology, Massachusetts General Hospital, Charlestown, Massachusetts 02129
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23
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Risen SJ, Boland SW, Sharma S, Weisman GM, Shirley PM, Latham AS, Hay AJD, Gilberto VS, Hines AD, Brindley S, Brown JM, McGrath S, Chatterjee A, Nagpal P, Moreno JA. Targeting Neuroinflammation by Pharmacologic Downregulation of Inflammatory Pathways Is Neuroprotective in Protein Misfolding Disorders. ACS Chem Neurosci 2024; 15:1533-1547. [PMID: 38507813 DOI: 10.1021/acschemneuro.3c00846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2024] Open
Abstract
Neuroinflammation plays a crucial role in the development of neurodegenerative protein misfolding disorders. This category of progressive diseases includes, but is not limited to, Alzheimer's disease, Parkinson's disease, and prion diseases. Shared pathogenesis involves the accumulation of misfolded proteins, chronic neuroinflammation, and synaptic dysfunction, ultimately leading to irreversible neuronal loss, measurable cognitive deficits, and death. Presently, there are few to no effective treatments to halt the advancement of neurodegenerative diseases. We hypothesized that directly targeting neuroinflammation by downregulating the transcription factor, NF-κB, and the inflammasome protein, NLRP3, would be neuroprotective. To achieve this, we used a cocktail of RNA targeting therapeutics (SB_NI_112) shown to be brain-penetrant, nontoxic, and effective inhibitors of both NF-κB and NLRP3. We utilized a mouse-adapted prion strain as a model for neurodegenerative diseases to assess the aggregation of misfolded proteins, glial inflammation, neuronal loss, cognitive deficits, and lifespan. Prion-diseased mice were treated either intraperitoneally or intranasally with SB_NI_112. Behavioral and cognitive deficits were significantly protected by this combination of NF-κB and NLRP3 downregulators. Treatment reduced glial inflammation, protected against neuronal loss, prevented spongiotic change, rescued cognitive deficits, and significantly lengthened the lifespan of prion-diseased mice. We have identified a nontoxic, systemic pharmacologic that downregulates NF-κB and NLRP3, prevents neuronal death, and slows the progression of neurodegenerative diseases. Though mouse models do not always predict human patient success and the study was limited due to sample size and number of dosing methods utilized, these findings serve as a proof of principle for continued translation of the therapeutic SB_NI_112 for prion disease and other neurodegenerative diseases. Based on the success in a murine prion model, we will continue testing SB_NI_112 in a variety of neurodegenerative disease models, including Alzheimer's disease and Parkinson's disease.
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Affiliation(s)
- Sydney J Risen
- Department of Environmental and Radiological Health Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado 80523, United States
- Brain Research Center, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Sean W Boland
- Department of Environmental and Radiological Health Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado 80523, United States
- Brain Research Center, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Sadhana Sharma
- Sachi Bioworks Inc., Colorado Technology Center, 685 South Arthur Avenue, Louisville, Colorado 80027, United States
| | - Grace M Weisman
- Department of Environmental and Radiological Health Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Payton M Shirley
- Department of Environmental and Radiological Health Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Amanda S Latham
- Department of Environmental and Radiological Health Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Arielle J D Hay
- Department of Environmental and Radiological Health Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Vincenzo S Gilberto
- Sachi Bioworks Inc., Colorado Technology Center, 685 South Arthur Avenue, Louisville, Colorado 80027, United States
| | - Amelia D Hines
- Department of Environmental and Radiological Health Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Stephen Brindley
- Department of Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, Colorado 80045, United States
| | - Jared M Brown
- Department of Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, Colorado 80045, United States
| | - Stephanie McGrath
- Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Anushree Chatterjee
- Sachi Bioworks Inc., Colorado Technology Center, 685 South Arthur Avenue, Louisville, Colorado 80027, United States
| | - Prashant Nagpal
- Sachi Bioworks Inc., Colorado Technology Center, 685 South Arthur Avenue, Louisville, Colorado 80027, United States
| | - Julie A Moreno
- Department of Environmental and Radiological Health Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado 80523, United States
- Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado 80523, United States
- Brain Research Center, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado 80523, United States
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24
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Zhao D, Huang ZK, Liang Y, Li ZJ, Zhang XW, Li KH, Wu H, Zhang XD, Li CS, An D, Sun X, An MX, Shi JX, Bao YJ, Tian L, Wang DF, Wu AH, Chen YH, Zhao WD. Monocytes Release Pro-Cathepsin D to Drive Blood-to-Brain Transcytosis in Diabetes. Circ Res 2024; 134:e17-e33. [PMID: 38420756 DOI: 10.1161/circresaha.123.323622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 02/15/2024] [Indexed: 03/02/2024]
Abstract
BACKGROUND Microvascular complications are the major outcome of type 2 diabetes progression, and the underlying mechanism remains to be determined. METHODS High-throughput RNA sequencing was performed using human monocyte samples from controls and diabetes. The transgenic mice expressing human CTSD (cathepsin D) in the monocytes was constructed using CD68 promoter. In vivo 2-photon imaging, behavioral tests, immunofluorescence, transmission electron microscopy, Western blot analysis, vascular leakage assay, and single-cell RNA sequencing were performed to clarify the phenotype and elucidate the molecular mechanism. RESULTS Monocytes expressed high-level CTSD in patients with type 2 diabetes. The transgenic mice expressing human CTSD in the monocytes showed increased brain microvascular permeability resembling the diabetic microvascular phenotype, accompanied by cognitive deficit. Mechanistically, the monocytes release nonenzymatic pro-CTSD to upregulate caveolin expression in brain endothelium triggering caveolae-mediated transcytosis, without affecting the paracellular route of brain microvasculature. The circulating pro-CTSD activated the caveolae-mediated transcytosis in brain endothelial cells via its binding with low-density LRP1 (lipoprotein receptor-related protein 1). Importantly, genetic ablation of CTSD in the monocytes exhibited a protective effect against the diabetes-enhanced brain microvascular transcytosis and the diabetes-induced cognitive impairment. CONCLUSIONS These findings uncover the novel role of circulatory pro-CTSD from monocytes in the pathogenesis of cerebral microvascular lesions in diabetes. The circulatory pro-CTSD is a potential target for the intervention of microvascular complications in diabetes.
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Affiliation(s)
- Dan Zhao
- Department of Developmental Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, China (D.Z., Z.-K.H., Y.L., Z.-J.L., X.-W.Z., H.W., C.-S.L., X.S., M.-X.A., J.-X.S., Y.-H.C., W.-D.Z.)
- Department of Neurosurgery, the First Affiliated Hospital of China Medical University, Shenyang, China (D.Z., K.-H.L., X.-D.Z., Y.-J.B.)
| | - Zeng-Kang Huang
- Department of Developmental Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, China (D.Z., Z.-K.H., Y.L., Z.-J.L., X.-W.Z., H.W., C.-S.L., X.S., M.-X.A., J.-X.S., Y.-H.C., W.-D.Z.)
| | - Yu Liang
- Department of Developmental Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, China (D.Z., Z.-K.H., Y.L., Z.-J.L., X.-W.Z., H.W., C.-S.L., X.S., M.-X.A., J.-X.S., Y.-H.C., W.-D.Z.)
| | - Zhi-Jun Li
- Department of Developmental Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, China (D.Z., Z.-K.H., Y.L., Z.-J.L., X.-W.Z., H.W., C.-S.L., X.S., M.-X.A., J.-X.S., Y.-H.C., W.-D.Z.)
| | - Xue-Wei Zhang
- Department of Developmental Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, China (D.Z., Z.-K.H., Y.L., Z.-J.L., X.-W.Z., H.W., C.-S.L., X.S., M.-X.A., J.-X.S., Y.-H.C., W.-D.Z.)
| | - Kun-Hang Li
- Department of Neurosurgery, the First Affiliated Hospital of China Medical University, Shenyang, China (D.Z., K.-H.L., X.-D.Z., Y.-J.B.)
| | - Hao Wu
- Department of Developmental Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, China (D.Z., Z.-K.H., Y.L., Z.-J.L., X.-W.Z., H.W., C.-S.L., X.S., M.-X.A., J.-X.S., Y.-H.C., W.-D.Z.)
| | - Xu-Dong Zhang
- Department of Neurosurgery, the First Affiliated Hospital of China Medical University, Shenyang, China (D.Z., K.-H.L., X.-D.Z., Y.-J.B.)
| | - Chen-Sheng Li
- Department of Developmental Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, China (D.Z., Z.-K.H., Y.L., Z.-J.L., X.-W.Z., H.W., C.-S.L., X.S., M.-X.A., J.-X.S., Y.-H.C., W.-D.Z.)
| | - Dong An
- School of Mechanical Engineering, Shenyang Jianzhu University, China (D.A.)
| | - Xue Sun
- Department of Developmental Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, China (D.Z., Z.-K.H., Y.L., Z.-J.L., X.-W.Z., H.W., C.-S.L., X.S., M.-X.A., J.-X.S., Y.-H.C., W.-D.Z.)
| | - Ming-Xin An
- Department of Developmental Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, China (D.Z., Z.-K.H., Y.L., Z.-J.L., X.-W.Z., H.W., C.-S.L., X.S., M.-X.A., J.-X.S., Y.-H.C., W.-D.Z.)
| | - Jun-Xiu Shi
- Department of Developmental Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, China (D.Z., Z.-K.H., Y.L., Z.-J.L., X.-W.Z., H.W., C.-S.L., X.S., M.-X.A., J.-X.S., Y.-H.C., W.-D.Z.)
| | - Yi-Jun Bao
- Department of Neurosurgery, the First Affiliated Hospital of China Medical University, Shenyang, China (D.Z., K.-H.L., X.-D.Z., Y.-J.B.)
| | - Li Tian
- Department of Gerontology (L.T., D.-F.W.), Shengjing Hospital of China Medical University, Shenyang, China
| | - Di-Fei Wang
- Department of Gerontology (L.T., D.-F.W.), Shengjing Hospital of China Medical University, Shenyang, China
| | - An-Hua Wu
- Department of Neurosurgery (A.-H.W.), Shengjing Hospital of China Medical University, Shenyang, China
| | - Yu-Hua Chen
- Department of Developmental Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, China (D.Z., Z.-K.H., Y.L., Z.-J.L., X.-W.Z., H.W., C.-S.L., X.S., M.-X.A., J.-X.S., Y.-H.C., W.-D.Z.)
| | - Wei-Dong Zhao
- Department of Developmental Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, China (D.Z., Z.-K.H., Y.L., Z.-J.L., X.-W.Z., H.W., C.-S.L., X.S., M.-X.A., J.-X.S., Y.-H.C., W.-D.Z.)
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Yadav-Samudrala BJ, Gorman BL, Barmada KM, Ravula HP, Huguely CJ, Wallace ED, Peace MR, Poklis JL, Jiang W, Fitting S. Effects of acute cannabidiol on behavior and the endocannabinoid system in HIV-1 Tat transgenic female and male mice. Front Neurosci 2024; 18:1358555. [PMID: 38505774 PMCID: PMC10949733 DOI: 10.3389/fnins.2024.1358555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 02/12/2024] [Indexed: 03/21/2024] Open
Abstract
Background Some evidence suggests that cannabidiol (CBD) has potential to help alleviate HIV symptoms due to its antioxidant and anti-inflammatory properties. Here we examined acute CBD effects on various behaviors and the endocannabinoid system in HIV Tat transgenic mice. Methods Tat transgenic mice (female/male) were injected with CBD (3, 10, 30 mg/kg) and assessed for antinociception, activity, coordination, anxiety-like behavior, and recognition memory. Brains were taken to quantify endocannabinoids, cannabinoid receptors, and cannabinoid catabolic enzymes. Additionally, CBD and metabolite 7-hydroxy-CBD were quantified in the plasma and cortex. Results Tat decreased supraspinal-related nociception and locomotion. CBD and sex had little to no effects on any of the behavioral measures. For the endocannabinoid system male sex was associated with elevated concentration of the proinflammatory metabolite arachidonic acid in various CNS regions, including the cerebellum that also showed higher FAAH expression levels for Tat(+) males. GPR55 expression levels in the striatum and cerebellum were higher for females compared to males. CBD metabolism was altered by sex and Tat expression. Conclusion Findings indicate that acute CBD effects are not altered by HIV Tat, and acute CBD has no to minimal effects on behavior and the endocannabinoid system.
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Affiliation(s)
- Barkha J. Yadav-Samudrala
- Department of Psychology and Neuroscience, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Benjamin L. Gorman
- Department of Psychology and Neuroscience, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Karenna M. Barmada
- Department of Psychology and Neuroscience, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Havilah P. Ravula
- Department of Psychology and Neuroscience, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Caitlin J. Huguely
- Department of Psychology and Neuroscience, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - E. Diane Wallace
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Michelle R. Peace
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, Richmond, VA, United States
| | - Justin L. Poklis
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, Richmond, VA, United States
| | - Wei Jiang
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC, United States
- Division of Infectious Diseases, Department of Medicine, Medical University of South Carolina, Charleston, SC, United States
| | - Sylvia Fitting
- Department of Psychology and Neuroscience, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
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26
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Adeniyi PA, Adeyelu TT, Shrestha A, Liu CC, Lee CC. Prenatal and postnatal methamphetamine exposure alters prefrontal cortical gene expression and behavior in mice. Front Behav Neurosci 2024; 18:1286872. [PMID: 38505323 PMCID: PMC10949922 DOI: 10.3389/fnbeh.2024.1286872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 02/07/2024] [Indexed: 03/21/2024] Open
Abstract
Methamphetamine is a highly abused psychostimulant that substantially impacts public health. Prenatal and postnatal methamphetamine exposure alters gene expression, brain development, and behavior in the offspring, although the underlying mechanisms are not fully defined. To assess these adverse outcomes in the offspring, we employed a mouse model of prenatal and postnatal methamphetamine exposure. Juvenile offspring were behaviorally assessed on the open field, novel object recognition, Y-maze, and forced swim tests. In addition, RNA sequencing was used to explore potential alterations in prefrontal cortical gene expression. We found that methamphetamine-exposed mice exhibited decreased locomotor activity and impaired cognitive performance. In addition, differential expression of genes involved in neurotransmission, synaptic plasticity, and neuroinflammation were found with notable changes in dopaminergic signaling pathways. These data suggest potential neural and molecular mechanisms underlying methamphetamine-exposed behavioral changes. The altered expression of genes involved in dopaminergic signaling and synaptic plasticity highlights potential targets for therapeutic interventions for substance abuse disorders and related psychiatric complications.
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Affiliation(s)
- Philip A. Adeniyi
- Department of Comparative Biomedical Sciences, Louisiana State University School of Veterinary Medicine, Baton Rouge, LA, United States
- Department of Pediatrics, Oregon Health & Science University, Portland, OR, United States
| | - Tolulope T. Adeyelu
- Department of Comparative Biomedical Sciences, Louisiana State University School of Veterinary Medicine, Baton Rouge, LA, United States
| | - Amita Shrestha
- Department of Comparative Biomedical Sciences, Louisiana State University School of Veterinary Medicine, Baton Rouge, LA, United States
| | - Chin-Chi Liu
- Department of Veterinary Clinical Sciences, Louisiana State University School of Veterinary Medicine, Baton Rouge, LA, United States
| | - Charles C. Lee
- Department of Comparative Biomedical Sciences, Louisiana State University School of Veterinary Medicine, Baton Rouge, LA, United States
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Mahoney HL, Schmidt TM. The cognitive impact of light: illuminating ipRGC circuit mechanisms. Nat Rev Neurosci 2024; 25:159-175. [PMID: 38279030 DOI: 10.1038/s41583-023-00788-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/19/2023] [Indexed: 01/28/2024]
Abstract
Ever-present in our environments, light entrains circadian rhythms over long timescales, influencing daily activity patterns, health and performance. Increasing evidence indicates that light also acts independently of the circadian system to directly impact physiology and behaviour, including cognition. Exposure to light stimulates brain areas involved in cognition and appears to improve a broad range of cognitive functions. However, the extent of these effects and their mechanisms are unknown. Intrinsically photosensitive retinal ganglion cells (ipRGCs) have emerged as the primary conduit through which light impacts non-image-forming behaviours and are a prime candidate for mediating the direct effects of light on cognition. Here, we review the current state of understanding of these effects in humans and mice, and the tools available to uncover circuit-level and photoreceptor-specific mechanisms. We also address current barriers to progress in this area. Current and future efforts to unravel the circuits through which light influences cognitive functions may inform the tailoring of lighting landscapes to optimize health and cognitive function.
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Affiliation(s)
- Heather L Mahoney
- Department of Neurobiology, Northwestern University, Evanston, IL, USA.
| | - Tiffany M Schmidt
- Department of Neurobiology, Northwestern University, Evanston, IL, USA.
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28
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Caldas LA, Muratori BG, Soliani AG, Cerutti SM, Sartorelli P. Evaluation of spontaneous exploratory and anxiety-related behaviors of mice treated with gymnopilins obtained from the mushroom Gymnopilus imperialis (Agaricomycetes, Basidiomycota). Toxicon 2024; 240:107626. [PMID: 38290609 DOI: 10.1016/j.toxicon.2024.107626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 12/22/2023] [Accepted: 01/18/2024] [Indexed: 02/01/2024]
Abstract
Gymnopilins are long chain oligoisoprenoids produced through the condensation of isoprene units from MEV and MEP biosynthetic pathways. In Gymnopilus, these carotenoid-like molecules are recognized as major compounds in some species. In the present study, oligoisoprenoids derived from gymnopilins were dereplicated from Gymnopilus imperialis, a mushroom-forming basidiomycete, using liquid chromatographic coupled with high-resolution mass spectrometry (tandem LC-HRMS/MS) and GNPS. From the dichloromethane extract (Gym-DCM) of G. imperialis we annotated 3 oligoisoprenoids from the GNPS molecular library spectra and 15 analogs from the curation of the molecular networking. Data from NMR spectroscopic of the extract confirmed the annotation of the metabolites. Based on the literature data suggesting the neurotoxic effect of gymnopilins, we investigated the effects of the administering different doses of gymnopilin extracts (1, 4 or 10 mg/kg) and diazepam (4 mg/kg) on the acquisition of object recognition memory (ORM) in mice. By studying novel object recognition memory (ORM), a type of non-aversive memory. ORM was assessed based on the total time of spontaneous exploration of both objects, the discrimination index (DI), and the frequency of contact with both objects. Our present findings reveal, for the first time, that gymnopilins treatment before training modulates ORM in a dose-dependent manner. It is also suggested that differential effects on memory might be related to differential effects on GABAA receptors but do not exclude its effects in other neurotransmitter systems. Another class of secondary metabolites, alkaloids, might modulate AChR, which is essential for maintaining object recognition memory over time.
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Affiliation(s)
- Lhaís Araújo Caldas
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, 09972-270, Diadema, SP, Brazil
| | - Beatriz Gangale Muratori
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, 09972-270, Diadema, SP, Brazil
| | - Andressa Gabriela Soliani
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, 09972-270, Diadema, SP, Brazil
| | - Suzete Maria Cerutti
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, 09972-270, Diadema, SP, Brazil
| | - Patrícia Sartorelli
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, 09972-270, Diadema, SP, Brazil.
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Ortiz-Valladares M, Pedraza-Medina R, Rosales-Herrera S, Guzmán-Muñiz J. Maternal aerobic exercise decreases the effects of a perinatal Western diet on the short and long-term memory of CD1 mouse progeny. Neurosci Lett 2024; 824:137669. [PMID: 38360145 DOI: 10.1016/j.neulet.2024.137669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 01/31/2024] [Accepted: 02/05/2024] [Indexed: 02/17/2024]
Abstract
Maternal nutrition and physical activity during pregnancy and lactation can modify offspring development. Here, we investigated the effects of maternal aerobic exercise (AE) and Western diet (WD) on brain development, cognitive flexibility, and memory of progenies. Sixteen adult female mice were assigned to AE or sedentary groups (SED) and fed a balanced diet (BD) or WD. Offspring were categorized into four groups: WD + AE, WD + SED, BD + AE, and BD + SED. The AE group showed enhanced spontaneous alternation in the T-maze test, suggesting an improvement in working memory and tasks related to cognitive flexibility. The novel object recognition (NOR) test showed that the BD + AE pups improved their absolute discrimination and discrimination index at 24 h, which suggests a delay in memory consolidation without affecting evocation. WD + SED showed poorer discrimination and recognition memory. The pups of AE mothers had better efficiency in short-term memory, whereas WD offspring showed low performance in long-term memory. Interestingly, exercise improved tasks related to cognitive flexibility, regardless of the diet. These findings indicate that maternal diet and physical activity modify offspring development and suggest that maternal AE during pregnancy could be a beneficial intervention to counteract the adverse effects of WD by improving spatial memory and cognitive flexibility in offspring.
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Affiliation(s)
| | - Ricardo Pedraza-Medina
- Laboratory of Neuroscience, School of Psychology, University of Colima, Colima 28040, Mexico
| | - Salma Rosales-Herrera
- Laboratory of Neuroscience, School of Psychology, University of Colima, Colima 28040, Mexico
| | - Jorge Guzmán-Muñiz
- Laboratory of Neuroscience, School of Psychology, University of Colima, Colima 28040, Mexico
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Zhang M, Huang SS, He WY, Cao WJ, Sun MY, Zhu NW. Nasal Administration of bFGF-Loaded Nanoliposomes Attenuates Neuronal Injury and Cognitive Deficits in Mice with Vascular Dementia Induced by Repeated Cerebral Ischemia‒Reperfusion. Int J Nanomedicine 2024; 19:1431-1450. [PMID: 38371455 PMCID: PMC10873211 DOI: 10.2147/ijn.s452045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 02/07/2024] [Indexed: 02/20/2024] Open
Abstract
Introduction Basic fibroblast growth factor (bFGF) shows great potential for preventing vascular dementia (VD). However, the blood‒brain barrier (BBB) and low bioavailability of bFGF in vivo limit its application. The present study investigated how nasal administration of bFGF-loaded nanoliposomes (bFGF-lips) affects the impaired learning and cognitive function of VD mice and the underlying mechanism involved. Methods A mouse model of VD was established through repeated cerebral ischemia‒reperfusion. A Morris water maze (MWM) and novel object recognition (NOR) tests were performed to assess the learning and cognitive function of the mice. Hematoxylin and eosin (HE) staining, Nissl staining and TUNEL staining were used to evaluate histopathological changes in mice in each group. ELISA and Western blot analysis were used to investigate the molecular mechanism by which bFGF-lips improve VD incidence. Results Behavioral and histopathological analyses showed that cognitive function was significantly improved in the bFGF-lips group compared to the VD and bFGF groups; in addition, abnormalities and the apoptosis indices of hippocampal neurons were significantly decreased. ELISA and Western blot analysis revealed that bFGF-lips nasal administration significantly increased the concentrations of superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), bFGF, B-cell lymphoma 2 (Bcl-2), phosphorylated protein kinase B (PAKT), nuclear factor erythroid 2-related factor 2 (Nrf2), NAD(P)H quinone oxidoreductase 1 (NQO1) and haem oxygenase-1 (HO-1) in the hippocampus of bFGF-lips mice compared with the VD and bFGF groups. Furthermore, the concentrations of malondialdehyde (MDA), caspase-3 and B-cell lymphoma 2-associated X (Bax) were clearly lower in the bFGF-lips group than in the VD and bFGF groups. Conclusion This study confirmed that the nasal administration of bFGF-lips significantly increased bFGF concentrations in the hippocampi of VD mice. bFGF-lips treatment reduced repeated I/R-induced neuronal apoptosis by regulating apoptosis-related protein concentrations and activating the phosphatidylinositol-3-kinase (PI3K)/(AKT)/Nrf2 signaling pathway to inhibit oxidative stress.
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Affiliation(s)
- Ming Zhang
- Department of Pharmacy, Ningbo Yinzhou NO.2 Hospital, Ningbo, Zhejiang, 315100, People’s Republic of China
| | - Shuai-shuai Huang
- Department of Pharmacy, Ningbo Yinzhou NO.2 Hospital, Ningbo, Zhejiang, 315100, People’s Republic of China
| | - Wen-yue He
- Department of Pharmacy, Ningbo Yinzhou NO.2 Hospital, Ningbo, Zhejiang, 315100, People’s Republic of China
| | - Wei-juan Cao
- Department of Pharmacy, Zhejiang Pharmaceutical University, Ningbo, Zhejiang Province, 315100, People’s Republic of China
| | - Min-yi Sun
- Department of Pharmacy, Ningbo Yinzhou NO.2 Hospital, Ningbo, Zhejiang, 315100, People’s Republic of China
| | - Ning-wei Zhu
- Department of Pharmacy, Zhejiang Pharmaceutical University, Ningbo, Zhejiang Province, 315100, People’s Republic of China
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Grabowska K, Grabowski M, Przybyła M, Pondel N, Barski JJ, Nowacka-Chmielewska M, Liśkiewicz D. Ketogenic diet and behavior: insights from experimental studies. Front Nutr 2024; 11:1322509. [PMID: 38389795 PMCID: PMC10881757 DOI: 10.3389/fnut.2024.1322509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 01/25/2024] [Indexed: 02/24/2024] Open
Abstract
As a journal page for full details. The ketogenic diet (KD) has been established as a treatment for epilepsy, but more recently it has been explored as an alternative or add-on therapy for many other diseases ranging from weight loss to neurological disorders. Animal models are widely used in studies investigating the therapeutic effects of the KD as well as underlying mechanisms. Especially in the context of neurological, psychiatric, and neurodevelopmental disorders essential endpoints are assessed by behavioral and motor tests. Here we summarized research evaluating the influence of the KD on cognition, depressive and anxiety-related behaviors, and social and nutritional behaviors of laboratory rodents. Each section contains a brief description of commonly used behavioral tests highlighting their limitations. Ninety original research articles, written in English, performed on mice or rats, providing measurement of blood beta-hydroxybutyrate (BHB) levels and behavioral evaluation were selected for the review. The majority of research performed in various disease models shows that the KD positively impacts cognition. Almost an equal number of studies report a reduction or no effect of the KD on depressive-related behaviors. For anxiety-related behaviors, the majority of studies show no effect. Despite the increasing use of the KD in weight loss and its appetite-reducing properties the behavioral evaluation of appetite regulation has not been addressed in preclinical studies. This review provides an overview of the behavioral effects of nutritional ketosis addressed to a broad audience of scientists interested in the KD field but not necessarily specializing in behavioral tests.
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Affiliation(s)
- Konstancja Grabowska
- Laboratory of Molecular Biology, Institute of Physiotherapy and Health Sciences, Academy of Physical Education, Katowice, Poland
- Department for Experimental Medicine, Faculty of Medical Sciences in Katowice, Medical University of Silesia, Katowice, Poland
| | - Mateusz Grabowski
- Laboratory of Molecular Biology, Institute of Physiotherapy and Health Sciences, Academy of Physical Education, Katowice, Poland
- Department for Experimental Medicine, Faculty of Medical Sciences in Katowice, Medical University of Silesia, Katowice, Poland
| | - Marta Przybyła
- Laboratory of Molecular Biology, Institute of Physiotherapy and Health Sciences, Academy of Physical Education, Katowice, Poland
- Department for Experimental Medicine, Faculty of Medical Sciences in Katowice, Medical University of Silesia, Katowice, Poland
| | - Natalia Pondel
- Laboratory of Molecular Biology, Institute of Physiotherapy and Health Sciences, Academy of Physical Education, Katowice, Poland
| | - Jarosław J Barski
- Department for Experimental Medicine, Faculty of Medical Sciences in Katowice, Medical University of Silesia, Katowice, Poland
- Department of Physiology, Faculty of Medical Sciences in Katowice, Medical University of Silesia, Katowice, Poland
| | - Marta Nowacka-Chmielewska
- Laboratory of Molecular Biology, Institute of Physiotherapy and Health Sciences, Academy of Physical Education, Katowice, Poland
| | - Daniela Liśkiewicz
- Laboratory of Molecular Biology, Institute of Physiotherapy and Health Sciences, Academy of Physical Education, Katowice, Poland
- Institute of Diabetes and Obesity, Helmholtz Center Munich, Neuherberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
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Mucellini AB, Laureano DP, Alves MB, Dalle Molle R, Borges MB, Salvador APDA, Pokhvisneva I, Manfro GG, Silveira PP. The impact of poor fetal growth and chronic hyperpalatable diet exposure in adulthood on hippocampal function and feeding patterns in male rats. Dev Psychobiol 2024; 66:e22459. [PMID: 38372503 DOI: 10.1002/dev.22459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 12/05/2023] [Accepted: 01/02/2024] [Indexed: 02/20/2024]
Abstract
Poor fetal growth affects eating behavior and the mesocorticolimbic system; however, its influence on the hippocampus has been less explored. Brain insulin sensitivity has been linked to developmental plasticity in response to fetal adversity and to cognitive performance following high-fat diet intake. We investigated whether poor fetal growth and exposure to chronic hyperpalatable food in adulthood could influence the recognition of environmental and food cues, eating behavior patterns, and hippocampal insulin signaling. At 60 days of life, we assigned male offspring from a prenatal animal model of 50% food restriction (FR) to receive either a high-fat and -sugar (HFS) diet or standard chow (CON) diet. Behavioral tests were conducted at 140 days, then tissues were collected. HFS groups showed a diminished hippocampal pAkt/Akt ratio. FR-CON and FR-HFS groups had higher levels of suppressor of cytokine signaling 3, compared to control groups. FR groups showed increased exploration of a novel hyperpalatable food, independent of their diet, and HFS groups exhibited overall lower entropy (less random, more predictable eating behavior) when the environment changed. Poor fetal growth and chronic HFS diet in adulthood altered hippocampal insulin signaling and eating patterns, diminishing the flexibility associated with eating behavior in response to extrinsic changes in food availability in the environment.
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Affiliation(s)
- Amanda Brondani Mucellini
- Graduate Program in Psychiatry and Behavioral Sciences, Faculty of Medicine, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Daniela Pereira Laureano
- Graduate Program in Neuroscience, Institute of Basic Health Sciences, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
- Graduate Program in Child and Adolescent Health, Faculty of Medicine, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Márcio Bonesso Alves
- Graduate Program in Biochemistry, Institute of Basic Health Sciences, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
- Ludmer Centre for Neuroinformatics and Mental Health, Douglas Research Centre, McGill University, Montreal, Quebec, Canada
| | - Roberta Dalle Molle
- Ludmer Centre for Neuroinformatics and Mental Health, Douglas Research Centre, McGill University, Montreal, Quebec, Canada
| | - Mariana Balbinot Borges
- Faculty of Biomedicine, Federal University of Health Sciences of Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | | | - Irina Pokhvisneva
- Ludmer Centre for Neuroinformatics and Mental Health, Douglas Research Centre, McGill University, Montreal, Quebec, Canada
| | - Gisele Gus Manfro
- Graduate Program in Psychiatry and Behavioral Sciences, Faculty of Medicine, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
- Graduate Program in Neuroscience, Institute of Basic Health Sciences, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Patrícia Pelufo Silveira
- Ludmer Centre for Neuroinformatics and Mental Health, Douglas Research Centre, McGill University, Montreal, Quebec, Canada
- Department of Psychiatry, Faculty of Medicine and Health Sciences, McGill University, Montreal, Quebec, Canada
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He H, Zhao Z, Xiao C, Li L, Liu YE, Fu J, Liao H, Zhou T, Zhang J. Gut microbiome promotes mice recovery from stress-induced depression by rescuing hippocampal neurogenesis. Neurobiol Dis 2024; 191:106396. [PMID: 38176570 DOI: 10.1016/j.nbd.2023.106396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Revised: 12/19/2023] [Accepted: 12/29/2023] [Indexed: 01/06/2024] Open
Abstract
Studies from rodents to primates and humans indicate that individuals vary in how resilient they are to stress, and understanding the basis of these variations may help improve treatments for depression. Here we explored the potential contribution of the gut microbiome to such variation. Mice were exposed to chronic unpredictable mild stress (CUMS) for 4 weeks then allowed to recover for 3 weeks, after which they were subjected to behavioral tests and categorized as showing low or high stress resilience. The two types of mouse were compared in terms of hippocampal gene expression using RNA sequencing, fecal microbiomes using 16S RNA sequencing, and extent of neurogenesis in the hippocampus using immunostaining of brain sections. Fecal microbiota were transplanted from either type of mouse into previously stress-exposed and stress-naïve animals, and the effects of the transplantation on stress-induced behaviors and neurogenesis in the hippocampus were examined. Finally, we blocked neurogenesis using temozolomide to explore the role of neurogenesis promoted by fecal microbiota transplantation in enhancing resilience to stress. Results showed that highly stress-resilient mice, but not those with low resilience, improved significantly on measures of anhedonia, behavioral despair, and anxiety after 3-week recovery from CUMS. Their feces showed greater abundance of Lactobacillus, Bifidobacterium and Romboutsia than feces from mice with low stress resilience, as well as lower abundance of Staphylococcus, Psychrobacter and Corynebacterium. Similarly, highly stress-resilient mice showed greater neurogenesis in hippocampus than animals with low stress resilience. Transplanting fecal microbiota from mice with high stress resilience into previously CUMS-exposed recipients rescued neurogenesis in hippocampus, facilitating recovery from stress-induced depression and cognitive decline. Blockade of neurogenesis with temozolomide abolished recovery of recipients from CUMS-induced depression and cognitive decline in mice transplanted with fecal microbiota from mice with high stress resilience. In conclusion, our results suggested that remodeling of the gut microbiome after stress may reverse stress-induced impairment of hippocampal neurogenesis and thereby promote recovery from stress-induced depression.
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Affiliation(s)
- Haili He
- Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Zhihuang Zhao
- Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Chenghong Xiao
- Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Liangyuan Li
- Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Yu-E Liu
- Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Juan Fu
- Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Hongyu Liao
- Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Tao Zhou
- Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China.
| | - Jinqiang Zhang
- Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China.
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Ma Y, Sun W, Bai J, Gao F, Ma H, Liu H, Hu J, Xu C, Zhang X, Liu Z, Yuan T, Sun C, Huang Y, Wang R. Targeting blood brain barrier-Remote ischemic conditioning alleviates cognitive impairment in female APP/PS1 rats. CNS Neurosci Ther 2024; 30:e14613. [PMID: 38379185 PMCID: PMC10879645 DOI: 10.1111/cns.14613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 11/16/2023] [Accepted: 11/26/2023] [Indexed: 02/22/2024] Open
Abstract
AIMS Alzheimer's disease (AD) is a significant global health concern, and it is crucial that we find effective methods to prevent or slow down AD progression. Recent studies have highlighted the essential role of blood vessels in clearing Aβ, a protein that contributes to AD. Scientists are exploring blood biomarkers as a potential tool for future AD diagnosis. One promising method that may help prevent AD is remote ischemic conditioning (RIC). RIC involves using sub-lethal ischemic-reperfusion cycles on limbs. However, a comprehensive understanding of how RIC can prevent AD and its long-term effectiveness is still lacking. Further research is essential to fully comprehend the potential benefits of RIC in preventing AD. METHODS Female wild-type (WT) and APP/PS1 transgenic rats, aged 12 months, underwent ovariectomy and were subsequently assigned to WT, APP/PS1, and APP/PS1 + RIC groups. RIC was conducted five times a week for 4 weeks. The rats' depressive and cognitive behaviors were evaluated using force swimming, open-field tests, novel objective recognition, elevated plus maze, and Barnes maze tests. Evaluation of the neurovascular unit (NVU), synapses, vasculature, astrocytes, and microglia was conducted using immunofluorescence staining (IF), Western blot (WB), and transmission electron microscopy (TEM). Additionally, the cerebro-vasculature was examined using micro-CT, and cerebral blood flow (CBF) was measured using Speckle Doppler. Blood-brain barrier (BBB) permeability was determined by measuring the Evans blue leakage. Finally, Aβ levels in the rat frontal cortex were measured using WB, ELISA, or IF staining. RESULTS RIC enhanced memory-related protein expression and rescued depressive-like behavior and cognitive decline in APP/PS1 transgenic rats. Additionally, the intervention protected NVU in the rat frontal cortex, as evidenced by (1) increased expression of TJ (tight junction) proteins, pericyte marker PDGFRβ, and glucose transporter 1 (GLUT1), as well as decreased VCAM1; (2) mitigation of ultrastructure impairment in neuron, cerebral vascular, and astrocyte; (3) upregulation of A2 astrocyte phenotype markers and downregulation of A1 phenotype markers, indicating a shift toward a healthier phenotype. Correspondingly, RIC intervention alleviated neuroinflammation, as evidenced by the decreased Iba1 level, a microglia marker. Meanwhile, RIC intervention elevated CBF in frontal cortex of the rats. Notably, RIC intervention effectively suppressed Aβ toxicity, as demonstrated by the enhancement of α-secretase and attenuation of β-secretase (BACE1) and γ- secretase and Aβ1-42 and Aβ1-40 levels as well. CONCLUSION Chronic RIC intervention exerts vascular and neuroprotective roles, suggesting that RIC could be a promising therapeutic strategy targeting the BBB and NVU during AD development.
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Affiliation(s)
- Yuxuan Ma
- International Science & Technology Cooperation Base of GeriatricSchool of Public Health of North China University of Science and TechnologyTangshanHebeiChina
| | - Wuxiang Sun
- School of Basic Medical ScienceNorth China University of Science and TechnologyTangshanHebeiChina
| | - Jing Bai
- School of Basic Medical ScienceNorth China University of Science and TechnologyTangshanHebeiChina
| | - Fujia Gao
- International Science & Technology Cooperation Base of GeriatricSchool of Public Health of North China University of Science and TechnologyTangshanHebeiChina
| | - Haoran Ma
- International Science & Technology Cooperation Base of GeriatricSchool of Public Health of North China University of Science and TechnologyTangshanHebeiChina
| | - Huiyu Liu
- International Science & Technology Cooperation Base of GeriatricSchool of Public Health of North China University of Science and TechnologyTangshanHebeiChina
| | - Jiewei Hu
- School of Basic Medical ScienceNorth China University of Science and TechnologyTangshanHebeiChina
| | - Chao Xu
- International Science & Technology Cooperation Base of GeriatricSchool of Public Health of North China University of Science and TechnologyTangshanHebeiChina
| | - Xin Zhang
- International Science & Technology Cooperation Base of GeriatricSchool of Public Health of North China University of Science and TechnologyTangshanHebeiChina
| | - Zixuan Liu
- School of Basic Medical ScienceNorth China University of Science and TechnologyTangshanHebeiChina
| | - Tao Yuan
- International Science & Technology Cooperation Base of GeriatricSchool of Public Health of North China University of Science and TechnologyTangshanHebeiChina
| | - Chenxu Sun
- School of Basic Medical ScienceNorth China University of Science and TechnologyTangshanHebeiChina
| | - Yuanyuan Huang
- School of Basic Medical ScienceNorth China University of Science and TechnologyTangshanHebeiChina
| | - Ruimin Wang
- International Science & Technology Cooperation Base of GeriatricSchool of Public Health of North China University of Science and TechnologyTangshanHebeiChina
- School of Basic Medical ScienceNorth China University of Science and TechnologyTangshanHebeiChina
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Marinina KS, Bezprozvanny IB, Egorova PA. Cognitive Decline and Mood Alterations in the Mouse Model of Spinocerebellar Ataxia Type 2. CEREBELLUM (LONDON, ENGLAND) 2024; 23:145-161. [PMID: 36680704 DOI: 10.1007/s12311-023-01520-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/16/2023] [Indexed: 01/22/2023]
Abstract
Spinocerebellar ataxia type 2 (SCA2) is a hereditary disorder, caused by an expansion of polyglutamine in the ataxin-2 protein. Although the mutant protein is expressed throughout all the cell and organ types, the cerebellum is primarily affected. The disease progression is mainly accompanied by a decline in motor functions. However, the disturbances in cognitive abilities and low mental state have also been reported in patients. Recent evidence suggests that the cerebellar functionality expands beyond the motor control. Thus, the cerebellum turned out to be involved into the language, verbal working, and spatial memory; executive functions such as working memory, planning, organizing, and strategy formation; and emotional processing. Here, we used the transgenic SCA2-58Q mice to evaluate their anxiety, cognitive functions, and mood alterations. The expression of the mutant ataxin-2 specifically in the cerebellar Purkinje cells (PCs) in SCA2-58Q mice allowed us to study the direct involvement of the cerebellum into the cognitive and affective control. We determined that SCA2-58Q mice exhibit anxiolytic behavior, decline in spatial memory, and a depressive-like state. Our results support the idea of cerebellar involvement in cognitive control and the handling of emotions.
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Affiliation(s)
- Ksenia S Marinina
- Laboratory of Molecular Neurodegeneration, Peter the Great St. Petersburg Polytechnic University, Saint Petersburg, Russia
| | - Ilya B Bezprozvanny
- Laboratory of Molecular Neurodegeneration, Peter the Great St. Petersburg Polytechnic University, Saint Petersburg, Russia.
- Department of Physiology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
| | - Polina A Egorova
- Laboratory of Molecular Neurodegeneration, Peter the Great St. Petersburg Polytechnic University, Saint Petersburg, Russia.
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36
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Strehle LD, Otto-Dobos LD, Grant CV, Glasper ER, Pyter LM. Microglia contribute to mammary tumor-induced neuroinflammation in a female mouse model. FASEB J 2024; 38:e23419. [PMID: 38236370 PMCID: PMC10832463 DOI: 10.1096/fj.202301580rr] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 11/13/2023] [Accepted: 12/27/2023] [Indexed: 01/19/2024]
Abstract
Following diagnosis but before treatment, up to 30% of breast cancer patients report behavioral side effects (e.g., anxiety, depression, memory impairment). Our rodent mammary tumor model recapitulates aspects of these behavioral sequelae, as well as elevated circulating and brain inflammatory mediators. Neuroinflammation is a proposed mechanism underlying the etiology of mood disorders and cognitive deficits, and therefore may be contributing to tumor-associated behavioral side effects. The cellular mechanisms by which tumor-induced neuroinflammation occurs remain unknown, making targeted treatment approaches inaccessible. Here, we tested the hypotheses that microglia are the primary cells driving tumor-induced neuroinflammation and behavioral side effects. Young adult female BALB/c mice were induced with a 67NR mammary tumor; tumor-free controls underwent a sham surgery. Mammary tumors increased IBA1+ and GFAP+ staining in the amygdala and hippocampus relative to tumor-free controls. However, tumors did not alter gene expression of Percoll-enriched microglia isolated from the whole brain. While cognitive, social, and anhedonia-like behaviors were not altered in tumor-bearing mice, tumors increased central tendency in the open-field test; microglia depletion did not reverse this effect. Brain region RT-qPCR data indicated that microglia depletion attenuated tumor-induced elevations of neuroinflammatory gene expression in a region- and mediator-specific manner. These results indicate a causal role of microglia in tumor-induced neuroinflammation. This research advances our understanding of the cellular mechanisms underlying tumor-induced neuroinflammation in order to understand how brain responses (e.g., behavior) may be altered with subsequent cancer-related immune challenges.
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Affiliation(s)
- Lindsay D. Strehle
- Institute for Behavioral Medicine Research, Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Lauren D. Otto-Dobos
- Institute for Behavioral Medicine Research, Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Corena V. Grant
- Institute for Behavioral Medicine Research, Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Erica R. Glasper
- Institute for Behavioral Medicine Research, Ohio State University Wexner Medical Center, Columbus, OH, USA
- Department of Neuroscience, Ohio State University, Columbus, OH, USA
| | - Leah M. Pyter
- Institute for Behavioral Medicine Research, Ohio State University Wexner Medical Center, Columbus, OH, USA
- Department of Psychiatry and Behavioral Health, Ohio State University, Columbus, OH, USA
- Department of Neuroscience, Ohio State University, Columbus, OH, USA
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37
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Dinh QN, Lo C, Zhang DW, Tran V, Gibson-Hughes T, Sheriff A, Diep H, Kim HA, Zhang SR, Barreto-Arce LJ, Jelinic M, Vinh A, Arumugam TV, Chan ST, Lim R, Drummond GR, Sobey CG, De Silva TM. Human amnion epithelial cell therapy reduces hypertension-induced vascular stiffening and cognitive impairment. Sci Rep 2024; 14:1837. [PMID: 38246932 PMCID: PMC10800338 DOI: 10.1038/s41598-024-52214-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 01/16/2024] [Indexed: 01/23/2024] Open
Abstract
Vascular inflammation and fibrosis are hallmarks of hypertension and contribute to the development of cardiovascular disease and cognitive impairment. However, current anti-hypertensive drugs do not treat the underlying tissue damage, such as inflammation-associated fibrosis. Human amnion epithelial cells have several properties amenable for treating vascular pathology. This study tested the effect of amnion epithelial cells on vascular pathology and cognitive impairment during hypertension. Male C57Bl6 mice (8-12 weeks) were administered vehicle (saline; n = 58) or angiotensin II (0.7 mg/kg/d, n = 56) subcutaneously for 14 d. After surgery, a subset of mice were injected with 106 amnion epithelial cells intravenously. Angiotensin II infusion increased systolic blood pressure, aortic pulse wave velocity, accumulation of aortic leukocytes, and aortic mRNA expression of collagen subtypes compared to vehicle-infused mice (n = 9-11, P < 0.05). Administration of amnion epithelial cells attenuated these effects of angiotensin II (P < 0.05). Angiotensin II-induced cognitive impairment was prevented by amnion epithelial cell therapy (n = 7-9, P < 0.05). In the brain, amnion epithelial cells modulated some of the inflammatory genes that angiotensin II promoted differential expression of (n = 6, p-adjusted < 0.05). These findings suggest that amnion epithelial cells could be explored as a potential therapy to inhibit vascular pathology and cognitive impairment during hypertension.
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Affiliation(s)
- Quynh Nhu Dinh
- Department of Microbiology, Anatomy, Physiology and Pharmacology, Centre for Cardiovascular Biology and Disease Research, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC, 3086, Australia
| | - Cecilia Lo
- Department of Microbiology, Anatomy, Physiology and Pharmacology, Centre for Cardiovascular Biology and Disease Research, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC, 3086, Australia
| | - David Wong Zhang
- Department of Microbiology, Anatomy, Physiology and Pharmacology, Centre for Cardiovascular Biology and Disease Research, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC, 3086, Australia
| | - Vivian Tran
- Department of Microbiology, Anatomy, Physiology and Pharmacology, Centre for Cardiovascular Biology and Disease Research, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC, 3086, Australia
| | - Tayla Gibson-Hughes
- Department of Microbiology, Anatomy, Physiology and Pharmacology, Centre for Cardiovascular Biology and Disease Research, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC, 3086, Australia
| | - Ashleigh Sheriff
- Department of Microbiology, Anatomy, Physiology and Pharmacology, Centre for Cardiovascular Biology and Disease Research, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC, 3086, Australia
| | - Henry Diep
- Department of Microbiology, Anatomy, Physiology and Pharmacology, Centre for Cardiovascular Biology and Disease Research, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC, 3086, Australia
| | - Hyun Ah Kim
- Department of Microbiology, Anatomy, Physiology and Pharmacology, Centre for Cardiovascular Biology and Disease Research, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC, 3086, Australia
| | - Shenpeng R Zhang
- Department of Microbiology, Anatomy, Physiology and Pharmacology, Centre for Cardiovascular Biology and Disease Research, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC, 3086, Australia
| | - Liz J Barreto-Arce
- Department of Microbiology, Anatomy, Physiology and Pharmacology, Centre for Cardiovascular Biology and Disease Research, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC, 3086, Australia
| | - Maria Jelinic
- Department of Microbiology, Anatomy, Physiology and Pharmacology, Centre for Cardiovascular Biology and Disease Research, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC, 3086, Australia
| | - Antony Vinh
- Department of Microbiology, Anatomy, Physiology and Pharmacology, Centre for Cardiovascular Biology and Disease Research, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC, 3086, Australia
| | - Thiruma V Arumugam
- Department of Microbiology, Anatomy, Physiology and Pharmacology, Centre for Cardiovascular Biology and Disease Research, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC, 3086, Australia
| | - Siow Teng Chan
- The Ritchie Centre, Hudson Institute of Medical Research, Clayton, VIC, Australia
| | - Rebecca Lim
- The Ritchie Centre, Hudson Institute of Medical Research, Clayton, VIC, Australia
| | - Grant R Drummond
- Department of Microbiology, Anatomy, Physiology and Pharmacology, Centre for Cardiovascular Biology and Disease Research, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC, 3086, Australia
| | - Christopher G Sobey
- Department of Microbiology, Anatomy, Physiology and Pharmacology, Centre for Cardiovascular Biology and Disease Research, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC, 3086, Australia.
| | - T Michael De Silva
- Department of Microbiology, Anatomy, Physiology and Pharmacology, Centre for Cardiovascular Biology and Disease Research, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC, 3086, Australia.
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Koketsu S, Matsubara K, Ueki Y, Shinohara Y, Inoue K, Murakami S, Ueki T. The defects of the hippocampal ripples and theta rhythm in depression, and the effects of physical exercise on their amelioration. Heliyon 2024; 10:e23738. [PMID: 38226277 PMCID: PMC10788462 DOI: 10.1016/j.heliyon.2023.e23738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 10/24/2023] [Accepted: 12/12/2023] [Indexed: 01/17/2024] Open
Abstract
Adverse environmental stress causes depressive symptoms with the impairments of memory formation, cognition, and motivation, however, their underlying neural bases have not been well understood, especially based on the observation of living animals. In the present study, therefore, the mice model of restraint-induced stress was examined electrophysiologically to investigate the alterations of hippocampal sharp wave ripples (SWRs) and theta rhythms. In addition, the therapeutic effects of physical exercise on the amelioration of those hippocampal impairments were examined in combination with a series of behavioral tests. The data demonstrated that chronic restraint stress caused the reductions of occurrence and amplitude of hippocampal SWRs and the decreases of occurrence, duration, and power of theta rhythms, while physical exercise significantly reverted them to the levels of healthy control. Furthermore, hippocampal adult neurogenesis and microglial activation, previously reported to be involved in the etiology of depression, were histologically examined in the mice. The results showed that the impairment of neurogenesis and alleviation of microglial activation were induced in the depressed mice. On the other hand, physical exercise considerably ameliorated those pathological conditions in the affected brain. Consistently, the data of behavioral tests in mice suggested that physical exercise ameliorated the symptomatic defects of motivation, memory formation, and cognition in the depressed mice. The impairments of hippocampal SWRs and theta rhythms in the affected hippocampus are linked with the symptomatic impairments of cognition and motivation, and the defect of memory formation, respectively, in depression. Taken together, this study demonstrated the implications of impairment of the hippocampal SWRs and theta rhythms in the etiology of depression and their usefulness as diagnostic markers of depression.
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Affiliation(s)
- Shinnosuke Koketsu
- Department of Rehabilitation Medicine, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, 467-8601, Japan
- Department of Integrative Anatomy, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, 467-8601, Japan
- Department of Physical Therapy, Nagoya Women's University Faculty of Medical Science, Nagoya, Aichi, 467-8610, Japan
| | - Kohki Matsubara
- Department of Rehabilitation Medicine, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, 467-8601, Japan
| | - Yoshino Ueki
- Department of Rehabilitation Medicine, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, 467-8601, Japan
| | - Yoshiaki Shinohara
- Department of Integrative Anatomy, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, 467-8601, Japan
- Department of Anatomy and Cell Biology, Yamanashi University Graduate School of Medical Sciences, Chuo, Yamanashi, 409-3898, Japan
| | - Koichi Inoue
- Department of Integrative Anatomy, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, 467-8601, Japan
- Department of Anatomy and Cell Biology, Nara Medical University, Kashihara, Nara, 634-8521, Japan
| | - Satona Murakami
- Department of Rehabilitation Medicine, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, 467-8601, Japan
| | - Takatoshi Ueki
- Department of Integrative Anatomy, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, 467-8601, Japan
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Blank HM, Hammer SE, Boatright L, Roberts C, Heyden KE, Nagarajan A, Tsuchiya M, Brun M, Johnson CD, Stover PJ, Sitcheran R, Kennedy BK, Adams LG, Kaeberlein M, Field MS, Threadgill DW, Andrews-Polymenis HL, Polymenis M. Late-life dietary folate restriction reduces biosynthetic processes without compromising healthspan in mice. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.12.575290. [PMID: 38260683 PMCID: PMC10802571 DOI: 10.1101/2024.01.12.575290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Folate is a vitamin required for cell growth and is present in fortified foods in the form of folic acid to prevent congenital abnormalities. The impact of low folate status on life-long health is poorly understood. We found that limiting folate levels with the folate antagonist methotrexate increased the lifespan of yeast and worms. We then restricted folate intake in aged mice and measured various health metrics, metabolites, and gene expression signatures. Limiting folate intake decreased anabolic biosynthetic processes in mice and enhanced metabolic plasticity. Despite reduced serum folate levels in mice with limited folic acid intake, these animals maintained their weight and adiposity late in life, and we did not observe adverse health outcomes. These results argue that the effectiveness of folate dietary interventions may vary depending on an individual's age and sex. A higher folate intake is advantageous during the early stages of life to support cell divisions needed for proper development. However, a lower folate intake later in life may result in healthier aging.
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Affiliation(s)
- Heidi M. Blank
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, United States
| | - Staci E. Hammer
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, United States
| | - Laurel Boatright
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, United States
- Department of Microbial Pathogenesis and Immunology, School of Medicine, Texas A&M University Health Science Center, Bryan, United States
| | - Courtney Roberts
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, United States
| | - Katarina E. Heyden
- Division of Nutritional Sciences, Cornell University, Ithaca, United States
| | - Aravindh Nagarajan
- Department of Microbial Pathogenesis and Immunology, School of Medicine, Texas A&M University Health Science Center, Bryan, United States
- Interdisciplinary Program in Genetics, Texas A&M University, College Station, United States
| | - Mitsuhiro Tsuchiya
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, United States
| | - Marcel Brun
- Texas A&M Agrilife Research, Genomics and Bioinformatics Service, College Station, United States
| | - Charles D. Johnson
- Texas A&M Agrilife Research, Genomics and Bioinformatics Service, College Station, United States
| | - Patrick J. Stover
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, United States
- Institute for Advancing Health through Agriculture, Texas A&M University, College Station, United States
- Department of Nutrition, Texas A&M University, College Station, United States
| | - Raquel Sitcheran
- Department of Cell Biology and Genetics, School of Medicine, Texas A&M University Health Science Center, Bryan, United States
| | - Brian K. Kennedy
- Departments of Biochemistry and Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Centre for Healthy Ageing, National University of Singapore, National University Health System, Singapore, Singapore
| | - L. Garry Adams
- Department of Veterinary Pathobiology, College of Veterinary Medicine, Texas A&M, College Station, Texas, USA
| | - Matt Kaeberlein
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, United States
- Optispan, Inc., Seattle, United States
| | - Martha S. Field
- Division of Nutritional Sciences, Cornell University, Ithaca, United States
| | - David W. Threadgill
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, United States
- Interdisciplinary Program in Genetics, Texas A&M University, College Station, United States
- Department of Nutrition, Texas A&M University, College Station, United States
- Texas A&M Institute for Genome Sciences and Society, Texas A&M University, College Station, United States
| | - Helene L. Andrews-Polymenis
- Department of Microbial Pathogenesis and Immunology, School of Medicine, Texas A&M University Health Science Center, Bryan, United States
- Interdisciplinary Program in Genetics, Texas A&M University, College Station, United States
| | - Michael Polymenis
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, United States
- Interdisciplinary Program in Genetics, Texas A&M University, College Station, United States
- Institute for Advancing Health through Agriculture, Texas A&M University, College Station, United States
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40
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Adeniyi IA, Oregbesan PO, Adesanya A, Olubori MA, Olayinka GS, Ajayi AM, Onasanwo SA. Olax subscorpioidea prevented scopolamine-induced memory impairment through the prevention of oxido-inflammatory damage and modulation of cholinergic transmission. JOURNAL OF ETHNOPHARMACOLOGY 2024; 318:116995. [PMID: 37541399 DOI: 10.1016/j.jep.2023.116995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 07/30/2023] [Accepted: 08/01/2023] [Indexed: 08/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Olax subscorpioidea oliv. is a shrub plant of the Olacaceae family with reported usage in ethnomedicine as a nootropic agent for the management of Alzheimer's-like dementia. AIM The aim of this study is to investigate the nootropic potential of methanol extract of Olax subscorpioidea (MEOS) in scopolamine-induced Alzheimer's-like dementia. MATERIALS AND METHODS Thirty male mice, assigned into six groups (n = 8), were used for this study. Group, I received distilled water, group II received scopolamine (1 mg/kg, i.p.), groups iii-v received 25, 50, and 100 mg/kg, p.o. of MEOS and scopolamine (1 mg/kg/i.p.), and group vi received donepezil 5 mg/kg, p.o.and scopolamine (1 mg/kg, i.p.). The animals were pre-treated with MEOS and Donepezil for 14 days, and scopolamine from the 8th to 14th day. Followed by cognitive, oxidative stress, neuroinflammation, and histology assessments. RESULTS 100 mg/kg MEOS significantly reduced transfer latency and increased discrimination index in the elevated plus maze and novel object recognition test cognitive assessments. 100 mg/kg MEOS, significantly reduced oxidative stress, protect endogenous antioxidants, suppressed neuroinflammation, and acetylcholinesterase (ACHE) activity. The histomorphometry study of the hippocampus revealed that MEOS prevented extensive pyknosis, karyolysis, chromatolysis, and loss of hippocampal neurons that accompanied scopolamine treatment. CONCLUSION MEOS protected against Alzheimer's-like dementia via the suppression of neuroinflammation and oxidative stress associated with scopolamine-induced amnesic behavior.
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Affiliation(s)
- Ismaheel Akinwale Adeniyi
- Neuroscience and Oral Physiology Unit, Department of Physiology, University of Ibadan, Ibadan, Nigeria.
| | | | - Adegboyega Adesanya
- Neuroscience and Oral Physiology Unit, Department of Physiology, University of Ibadan, Ibadan, Nigeria.
| | | | - Gbenga Stanley Olayinka
- Neuroscience and Oral Physiology Unit, Department of Physiology, University of Ibadan, Ibadan, Nigeria.
| | | | - Samuel Adetunji Onasanwo
- Neuroscience and Oral Physiology Unit, Department of Physiology, University of Ibadan, Ibadan, Nigeria.
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Chanana V, Hackett M, Deveci N, Aycan N, Ozaydin B, Cagatay NS, Hanalioglu D, Kintner DB, Corcoran K, Yapici S, Camci F, Eickhoff J, Frick KM, Ferrazzano P, Levine JE, Cengiz P. TrkB-mediated sustained neuroprotection is sex-specific and Erα-dependent in adult mice following neonatal hypoxia ischemia. Biol Sex Differ 2024; 15:1. [PMID: 38178264 PMCID: PMC10765746 DOI: 10.1186/s13293-023-00573-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 12/07/2023] [Indexed: 01/06/2024] Open
Abstract
BACKGROUND Neonatal hypoxia ischemia (HI) related brain injury is one of the major causes of life-long neurological morbidities that result in learning and memory impairments. Evidence suggests that male neonates are more susceptible to the detrimental effects of HI, yet the mechanisms mediating these sex-specific responses to neural injury in neonates remain poorly understood. We previously tested the effects of treatment with a small molecule agonist of the tyrosine kinase B receptor (TrkB), 7,8-dihydroxyflavone (DHF) following neonatal HI and determined that females, but not males exhibit increased phosphorylation of TrkB and reduced apoptosis in their hippocampi. Moreover, these female-specific effects of the TrkB agonist were found to be dependent upon the expression of Erα. These findings demonstrated that TrkB activation in the presence of Erα comprises one pathway by which neuroprotection may be conferred in a female-specific manner. The goal of this study was to determine the role of Erα-dependent TrkB-mediated neuroprotection in memory and anxiety in young adult mice exposed to HI during the neonatal period. METHODS In this study, we used a unilateral hypoxic ischemic (HI) mouse model. Erα+/+ or Erα-/- mice were subjected to HI on postnatal day (P) 9 and mice were treated with either vehicle control or the TrkB agonist, DHF, for 7 days following HI. When mice reached young adulthood, we used the novel object recognition, novel object location and open field tests to assess long-term memory and anxiety-like behavior. The brains were then assessed for tissue damage using immunohistochemistry. RESULTS Neonatal DHF treatment prevented HI-induced decrements in recognition and location memory in adulthood in females, but not in males. This protective effect was absent in female mice lacking Erα. The female-specific improved recognition and location memory outcomes in adulthood conferred by DHF therapy after neonatal HI tended to be or were Erα-dependent, respectively. Interestingly, DHF triggered anxiety-like behavior in both sexes only in the mice that lacked Erα. When we assessed the severity of injury, we found that DHF therapy did not decrease the percent tissue loss in proportion to functional recovery. We additionally observed that the presence of Erα significantly reduced overall HI-associated mortality in both sexes. CONCLUSIONS These observations provide evidence for a therapeutic role for DHF in which TrkB-mediated sustained recovery of recognition and location memories in females are Erα-associated and dependent, respectively. However, the beneficial effects of DHF therapy did not include reduction of gross tissue loss but may be derived from the enhanced functioning of residual tissues in a cell-specific manner.
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Affiliation(s)
- Vishal Chanana
- Department of Pediatrics, University of Wisconsin-Madison, 1500 Highland Ave-T503, Madison, WI, 53705-9345, USA
- Waisman Center, University of Wisconsin-Madison, Madison, WI, USA
| | - Margaret Hackett
- Department of Pediatrics, University of Wisconsin-Madison, 1500 Highland Ave-T503, Madison, WI, 53705-9345, USA
- Waisman Center, University of Wisconsin-Madison, Madison, WI, USA
| | - Nazli Deveci
- Department of Pediatrics, University of Wisconsin-Madison, 1500 Highland Ave-T503, Madison, WI, 53705-9345, USA
- Waisman Center, University of Wisconsin-Madison, Madison, WI, USA
| | - Nur Aycan
- Department of Pediatrics, University of Wisconsin-Madison, 1500 Highland Ave-T503, Madison, WI, 53705-9345, USA
| | - Burak Ozaydin
- Department of Pediatrics, University of Wisconsin-Madison, 1500 Highland Ave-T503, Madison, WI, 53705-9345, USA
- Waisman Center, University of Wisconsin-Madison, Madison, WI, USA
| | - Nur Sena Cagatay
- Department of Pediatrics, University of Wisconsin-Madison, 1500 Highland Ave-T503, Madison, WI, 53705-9345, USA
- Waisman Center, University of Wisconsin-Madison, Madison, WI, USA
| | - Damla Hanalioglu
- Department of Pediatrics, University of Wisconsin-Madison, 1500 Highland Ave-T503, Madison, WI, 53705-9345, USA
| | - Douglas B Kintner
- Department of Pediatrics, University of Wisconsin-Madison, 1500 Highland Ave-T503, Madison, WI, 53705-9345, USA
- Waisman Center, University of Wisconsin-Madison, Madison, WI, USA
| | - Karson Corcoran
- Department of Pediatrics, University of Wisconsin-Madison, 1500 Highland Ave-T503, Madison, WI, 53705-9345, USA
- Waisman Center, University of Wisconsin-Madison, Madison, WI, USA
| | - Sefer Yapici
- Department of Pediatrics, University of Wisconsin-Madison, 1500 Highland Ave-T503, Madison, WI, 53705-9345, USA
- Waisman Center, University of Wisconsin-Madison, Madison, WI, USA
| | - Furkan Camci
- Department of Pediatrics, University of Wisconsin-Madison, 1500 Highland Ave-T503, Madison, WI, 53705-9345, USA
| | - Jens Eickhoff
- Department of Biostatistics & Medical Informatics, University of Wisconsin-Madison, Madison, WI, USA
| | - Karyn M Frick
- Department of Psychology, University of Wisconsin-Milwaukee, Milwaukee, WI, USA
| | - Peter Ferrazzano
- Department of Pediatrics, University of Wisconsin-Madison, 1500 Highland Ave-T503, Madison, WI, 53705-9345, USA
- Waisman Center, University of Wisconsin-Madison, Madison, WI, USA
| | - Jon E Levine
- Department of Neuroscience, University of Wisconsin-Madison, Madison, WI, USA
| | - Pelin Cengiz
- Department of Pediatrics, University of Wisconsin-Madison, 1500 Highland Ave-T503, Madison, WI, 53705-9345, USA.
- Waisman Center, University of Wisconsin-Madison, Madison, WI, USA.
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Baena-Caldas GP, Li J, Pedraza L, Ghosh S, Kalmes A, Barone FC, Moreno H, Hernández AI. Neuroprotective effect of the RNS60 in a mouse model of transient focal cerebral ischemia. PLoS One 2024; 19:e0295504. [PMID: 38166102 PMCID: PMC10760892 DOI: 10.1371/journal.pone.0295504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Accepted: 11/22/2023] [Indexed: 01/04/2024] Open
Abstract
BACKGROUND Stroke is a major cause of death, disability, and public health problems. Its intervention is limited to early treatment with thrombolytics and/or endovascular clot removal with mechanical thrombectomy without any available subacute or chronic neuroprotective treatments. RNS60 has reduced neuroinflammation and increased neuronal survival in several animal models of neurodegeneration and trauma. The aim here was to evaluate whether RNS60 protects the brain and cognitive function in a mouse stroke model. METHODS Male C57BL/6J mice were subjected to sham or ischemic stroke surgery using 60-minute transient middle cerebral artery occlusion (tMCAo). In each group, mice received blinded daily administrations of RNS60 or control fluids (PNS60 or normal saline [NS]), beginning 2 hours after surgery over 13 days. Multiple neurobehavioral tests were conducted (Neurological Severity Score [mNSS], Novel Object Recognition [NOR], Active Place Avoidance [APA], and the Conflict Variant of APA [APAc]). On day 14, cortical microvascular perfusion (MVP) was measured, then brains were removed and infarct volume, immunofluorescence of amyloid beta (Aβ), neuronal density, microglial activation, and white matter damage/myelination were measured. SPSS was used for analysis (e.g., ANOVA for parametric data; Kruskal Wallis for non-parametric data; with post-hoc analysis). RESULTS Thirteen days of treatment with RNS60 reduced brain infarction, amyloid pathology, neuronal death, microglial activation, white matter damage, and increased MVP. RNS60 reduced brain pathology and resulted in behavioral improvements in stroke compared to sham surgery mice (increased memory-learning in NOR and APA, improved cognitive flexibility in APAc). CONCLUSION RNS60-treated mice exhibit significant protection of brain tissue and improved neurobehavioral functioning after tMCAo-stroke. Additional work is required to determine mechanisms, time-window of dosing, and multiple dosing volumes durations to support clinical stroke research.
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Affiliation(s)
- Gloria Patricia Baena-Caldas
- Departments of Neurology and Physiology & Pharmacology, SUNY Downstate Health Sciences University, Brooklyn, NY, United States of America
- Department of Pathology, SUNY Downstate Health Sciences University, Brooklyn, NY, United States of America
- Health Sciences Division, Department of Morphology, School of Biomedical Sciences, Universidad del Valle, Cali, Colombia
| | - Jie Li
- Departments of Neurology and Physiology & Pharmacology, SUNY Downstate Health Sciences University, Brooklyn, NY, United States of America
| | - Lina Pedraza
- Departments of Neurology and Physiology & Pharmacology, SUNY Downstate Health Sciences University, Brooklyn, NY, United States of America
| | - Supurna Ghosh
- Revalesio Corporation, Tacoma, WA, United States of America
| | - Andreas Kalmes
- Revalesio Corporation, Tacoma, WA, United States of America
| | - Frank C. Barone
- Departments of Neurology and Physiology & Pharmacology, SUNY Downstate Health Sciences University, Brooklyn, NY, United States of America
- The Robert F. Furchgott Center for Neural and Behavioral Science, Downstate Medical Center, State University of New York, Brooklyn, NY, United States of America
| | - Herman Moreno
- Departments of Neurology and Physiology & Pharmacology, SUNY Downstate Health Sciences University, Brooklyn, NY, United States of America
- The Robert F. Furchgott Center for Neural and Behavioral Science, Downstate Medical Center, State University of New York, Brooklyn, NY, United States of America
| | - A. Iván Hernández
- Department of Pathology, SUNY Downstate Health Sciences University, Brooklyn, NY, United States of America
- The Robert F. Furchgott Center for Neural and Behavioral Science, Downstate Medical Center, State University of New York, Brooklyn, NY, United States of America
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Puangmalai N, Bhatt N, Bittar A, Jerez C, Shchankin N, Kayed R. Traumatic brain injury derived pathological tau polymorphs induce the distinct propagation pattern and neuroinflammatory response in wild type mice. Prog Neurobiol 2024; 232:102562. [PMID: 38135105 DOI: 10.1016/j.pneurobio.2023.102562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 12/01/2023] [Accepted: 12/16/2023] [Indexed: 12/24/2023]
Abstract
The misfolding and aggregation of the tau protein into neurofibrillary tangles constitutes a central feature of tauopathies. Traumatic brain injury (TBI) has emerged as a potential risk factor, triggering the onset and progression of tauopathies. Our previous research revealed distinct polymorphisms in soluble tau oligomers originating from single versus repetitive mild TBIs. However, the mechanisms orchestrating the dissemination of TBI brain-derived tau polymorphs (TBI-BDTPs) remain elusive. In this study, we explored whether TBI-BDTPs could initiate pathological tau formation, leading to distinct pathogenic trajectories. Wild-type mice were exposed to TBI-BDTPs from sham, single-blast (SB), or repeated-blast (RB) conditions, and their memory function was assessed through behavioral assays at 2- and 8-month post-injection. Our findings revealed that RB-BDTPs induced cognitive and motor deficits, concurrently fostering the emergence of toxic tau aggregates within the injected hippocampus. Strikingly, this tau pathology propagated to cortical layers, intensifying over time. Importantly, RB-BDTP-exposed animals displayed heightened glial cell activation, NLRP3 inflammasome formation, and increased TBI biomarkers, particularly triggering the aggregation of S100B, which is indicative of a neuroinflammatory response. Collectively, our results shed light on the intricate mechanisms underlying TBI-BDTP-induced tau pathology and its association with neuroinflammatory processes. This investigation enhances our understanding of tauopathies and their interplay with neurodegenerative and inflammatory pathways following traumatic brain injury.
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Affiliation(s)
- Nicha Puangmalai
- Mitchell Center for Neurodegenerative Diseases, University of Texas Medical Branch, Galveston, TX 77555, USA; Departments of Neurology, Neuroscience and Cell Biology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Nemil Bhatt
- Mitchell Center for Neurodegenerative Diseases, University of Texas Medical Branch, Galveston, TX 77555, USA; Departments of Neurology, Neuroscience and Cell Biology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Alice Bittar
- Mitchell Center for Neurodegenerative Diseases, University of Texas Medical Branch, Galveston, TX 77555, USA; Departments of Neurology, Neuroscience and Cell Biology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Cynthia Jerez
- Mitchell Center for Neurodegenerative Diseases, University of Texas Medical Branch, Galveston, TX 77555, USA; Departments of Neurology, Neuroscience and Cell Biology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Nikita Shchankin
- Mitchell Center for Neurodegenerative Diseases, University of Texas Medical Branch, Galveston, TX 77555, USA; Departments of Neurology, Neuroscience and Cell Biology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Rakez Kayed
- Mitchell Center for Neurodegenerative Diseases, University of Texas Medical Branch, Galveston, TX 77555, USA; Departments of Neurology, Neuroscience and Cell Biology, University of Texas Medical Branch, Galveston, TX 77555, USA.
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Park K, Kim R, Cho K, Kong CH, Jeon M, Kang WC, Jung SY, Jang DS, Ryu JH. Panaxcerol D from Panax ginseng ameliorates the memory impairment induced by cholinergic blockade or Aβ 25-35 peptide in mice. J Ginseng Res 2024; 48:59-67. [PMID: 38223823 PMCID: PMC10785420 DOI: 10.1016/j.jgr.2023.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 08/09/2023] [Accepted: 08/11/2023] [Indexed: 01/16/2024] Open
Abstract
Background Alzheimer's disease (AD) has memory impairment associated with aggregation of amyloid plaques and neurofibrillary tangles in the brain. Although anti-amyloid β (Aβ) protein antibody and chemical drugs can be prescribed in the clinic, they show adverse effects or low effectiveness. Therefore, the development of a new drug is necessarily needed. We focused on the cognitive function of Panax ginseng and tried to find active ingredient(s). We isolated panaxcerol D, a kind of glycosyl glyceride, from the non-saponin fraction of P. ginseng extract. Methods We explored effects of acute or sub-chronic administration of panaxcerol D on cognitive function in scopolamine- or Aβ25-35 peptide-treated mice measured by several behavioral tests. After behavioral tests, we tried to unveil the underlying mechanism of panaxcerol D on its cognitive function by Western blotting. Results We found that pananxcerol D reversed short-term, long-term and object recognition memory impairments. The decreased extracellular signal-regulated kinases (ERK) or Ca2+/calmodulin-dependent protein kinase II (CaMKII) in scopolamine-treated mice was normalized by acute administration of panaxcerol D. Glial fibrillary acidic protein (GFAP), caspase 3, NF-kB p65, synaptophysin and brain-derived neurotrophic factor (BDNF) expression levels in Aβ25-35 peptide-treated mice were modulated by sub-chronic administration of panaxcerol D. Conclusion Pananxcerol D could improve memory impairments caused by cholinergic blockade or Aβ accumulation through increased phosphorylation level of ERK or its anti-inflammatory effect. Thus, panaxcerol D as one of non-saponin compounds could be used as an active ingredient of P. ginseng for improving cognitive function.
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Affiliation(s)
- Keontae Park
- Department of Biomedical and Pharmaceutical Sciences, Kyung Hee University, Seoul, Republic of Korea
| | - Ranhee Kim
- Department of Biomedical and Pharmaceutical Sciences, Kyung Hee University, Seoul, Republic of Korea
| | - Kyungnam Cho
- Department of Biomedical and Pharmaceutical Sciences, Kyung Hee University, Seoul, Republic of Korea
| | - Chang Hyeon Kong
- Department of Biomedical and Pharmaceutical Sciences, Kyung Hee University, Seoul, Republic of Korea
| | - Mijin Jeon
- Department of Biomedical and Pharmaceutical Sciences, Kyung Hee University, Seoul, Republic of Korea
| | - Woo Chang Kang
- Department of Biomedical and Pharmaceutical Sciences, Kyung Hee University, Seoul, Republic of Korea
| | - Seo Yun Jung
- Department of Biomedical and Pharmaceutical Sciences, Kyung Hee University, Seoul, Republic of Korea
| | - Dae Sik Jang
- Department of Biomedical and Pharmaceutical Sciences, Kyung Hee University, Seoul, Republic of Korea
| | - Jong Hoon Ryu
- Department of Biomedical and Pharmaceutical Sciences, Kyung Hee University, Seoul, Republic of Korea
- Department of Oriental Pharmaceutical Science, Kyung Hee University, Seoul, Republic of Korea
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Elbeltagy M, Al-Horani RA, Alsharaeh TS, Alkhatib AH, Alawaisheh I, Abuhani AA, Salman A. The Counter Effect of Exercise on Cisplatin-Induced Cognitive and Proliferation Impairments. Cureus 2024; 16:e52526. [PMID: 38371164 PMCID: PMC10874300 DOI: 10.7759/cureus.52526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/18/2024] [Indexed: 02/20/2024] Open
Abstract
Background Cisplatin, a widely used chemotherapeutic agent, offers therapeutic benefits for cancer treatment but often leads to adverse effects on neurogenesis and oxidative stress, causing cognitive impairment. Concurrent physical activity has been proposed as a potential strategy to counteract these side effects. This study aimed to investigate the impact of physical exercise on cisplatin-induced cognitive impairment in a mouse model. Methods Adult male mice (n=45) were divided into three groups: control, cisplatin-treated (2.3 mg/kg), and exercise/cisplatin. Cisplatin was administered intraperitoneally over one month, while the exercise/cisplatin group underwent moderate-intensity exercise alongside cisplatin treatment. Spatial memory was evaluated using the novel object recognition (NOR) task, and hippocampal proliferation and oxidative stress were examined using Ki-67 and glutathione peroxidase (GPx) immunohistochemistry (IHC) staining, respectively. Statistical analyses were performed using the GraphPad Prism 4.0 software (GraphPad Software, San Diego, CA). Results The cisplatin-treated mice exhibited significantly lower preference index (PI) scores in the NOR task compared to the control (p<0.001) and exercise/cisplatin (p<0.001) groups. IHC staining revealed impaired hippocampal proliferation and increased oxidative stress in the cisplatin-treated group relative to the control and exercise/cisplatin groups. The introduction of a moderate-intensity exercise protocol appeared to mitigate the decline in hippocampal proliferation and oxidative damage induced by cisplatin. Additionally, cisplatin-treated mice experienced weight loss, while exercise attenuated this effect. Conclusion Cisplatin treatment resulted in decreased memory, hippocampal proliferation, and weight loss in mice. Concurrent moderate-intensity exercise seemed to alleviate these effects, suggesting a potential role for physical activity in ameliorating cisplatin-induced cognitive decline. This study underscores the importance of incorporating exercise as a complementary strategy to enhance cognitive outcomes in cancer patients undergoing cisplatin treatment.
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Affiliation(s)
- Maha Elbeltagy
- Department of Anatomy and Histology, Faculty of Medicine, The University of Jordan, Amman, JOR
- Department of Anatomy, Faculty of Medicine, Menoufia University, Shibin El Kom, EGY
| | | | - Tala S Alsharaeh
- Department of General Medicine, University of Jordan Hospital, Amman, JOR
| | - Amro H Alkhatib
- Department of General Medicine, University of Jordan Hospital, Amman, JOR
| | - Ibrahim Alawaisheh
- Department of General Medicine, University of Jordan Hospital, Amman, JOR
| | - Ahmad A Abuhani
- Department of General Medicine, University of Jordan Hospital, Amman, JOR
| | - Ahmed Salman
- Department of Anatomy and Histology, Faculty of Medicine, The University of Jordan, Amman, JOR
- Department of Anatomy, Faculty of Medicine, Menoufia University, Shibin El Kom, EGY
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Ommati MM, Rezaei H, Socorro RM, Tian W, Zhao J, Rouhani A, Sabouri S, Ghaderi F, Niknahad AM, Najibi A, Mazloomi S, Safipour M, Honarpishefard Z, Wang HW, Niknahad H, Heidari R. Pre/postnatal taurine supplementation improves neurodevelopment and brain function in mice offspring: A persistent developmental study from puberty to maturity. Life Sci 2024; 336:122284. [PMID: 38008208 DOI: 10.1016/j.lfs.2023.122284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 11/17/2023] [Accepted: 11/20/2023] [Indexed: 11/28/2023]
Abstract
Taurine (TAU) is a sulfur-containing amino acid abundantly found in the human body. Endogenously, TAU is synthesized from cysteine in the liver. However, newborns rely entirely on TAU's dietary supply (milk). There is no investigation on the effect of long-term TAU administration on next-generation neurological development. The current study evaluated the effect of long-term TAU supplementation during the maternal gestational and litter weaning time on several neurological parameters in mice offspring. Moreover, the effects of TAU on mitochondrial function and oxidative stress biomarkers as plausible mechanisms of its action in the whole brain and hippocampus have been evaluated. TAU (0.5 % and 1 % w/v) was dissolved in the drinking water of pregnant mice (Day one of pregnancy), and amino acid supplementation was continued during the weaning time (post-natal day; PND = 21) until litters maturity (PND = 65). It was found that TAU significantly improved cognitive function, memory performance, reflexive motor activity, and emotional behaviors in F1-mice generation. TAU measurement in the brain and hippocampus revealed higher levels of this amino acid. TAU and ATP levels were also significantly higher in the mitochondria isolated from the whole brain and hippocampus. Based on these data, TAU could be suggested as a supplement during pregnancy or in pediatric formula. The effects of TAU on cellular mitochondrial function and energy metabolism might play a fundamental role in the positive effects of this amino acid observed in this investigation.
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Affiliation(s)
- Mohammad Mehdi Ommati
- Henan Key Laboratory of Environmental and Animal Product Safety, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471000, Henan, China; Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Heresh Rezaei
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Pharmacology and Toxicology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Retana-Márquez Socorro
- Department of Reproductive Biology, Universidad Autónoma Metropolitana-Iztapalapa, México City, Mexico
| | - Weishun Tian
- Henan Key Laboratory of Environmental and Animal Product Safety, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471000, Henan, China
| | - Jing Zhao
- Henan Key Laboratory of Environmental and Animal Product Safety, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471000, Henan, China
| | - Ayeh Rouhani
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Samira Sabouri
- Henan Key Laboratory of Environmental and Animal Product Safety, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471000, Henan, China; College of Animal Science and Veterinary, Shanxi agricultural University, Taigu, Shanxi, China
| | - Fatemeh Ghaderi
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Amir Mohammad Niknahad
- Department of Pharmacology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Asma Najibi
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Pharmacology and Toxicology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Chemistry and Biochemistry, Miami University, 244 Hughes Laboratories, 651 E. High Street, Oxford, OH 45056, USA
| | - Sahra Mazloomi
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Moslem Safipour
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zahra Honarpishefard
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Hong-Wei Wang
- Henan Key Laboratory of Environmental and Animal Product Safety, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471000, Henan, China.
| | - Hossein Niknahad
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Reproductive Biology, Universidad Autónoma Metropolitana-Iztapalapa, México City, Mexico.
| | - Reza Heidari
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
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Gonzalez-Ruiz C, Ortiz-Flores M, Bernal-Hernández J, Mondragon-Lozano R, Palma-Guzman A, Coyoy-Salgado A, Salgado-Ceballos H. Phytochemical Extract from Carica papaya Leaves and Punica granatum Seeds as Therapy Against Cognitive Impairment in a Murine Model. Mol Neurobiol 2024; 61:450-464. [PMID: 37626269 DOI: 10.1007/s12035-023-03547-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 07/31/2023] [Indexed: 08/27/2023]
Abstract
Mild cognitive impairment (MCI) is defined as inter-stage between normal cognitive aging and major neurocognitive disorder (MND). This state of decay is a crucial factor in treatment to prevent the progression to MND. In this study, our group developed a virtual screening process to evaluate 2568 phytochemical compounds against 5 key proteins associated with MCI and MND. As a result, two potential candidates were identified: carpaine, found in Carica papaya leaves, and punicalagin, present in Punica granatum. A model of cognitive impairment (CI) was developed in 10-month-old male Sprague Dawley rats by administering aluminum chloride (AlCl3) at a dose of 100 mg/kg/day for 30 days. After AlCl3 administration period, one of the groups received carpaine and punicalagin in a phytochemical extract (PE) by oral gavage for 30 days. Novel object recognition test (NOR) was assessed at three different time points (T1 - before CI, T2 - after CI, and T3 - after PE treatment). Glial fibrillary acidic protein (GFAP) and neurofilament light chain (NfL) were identified in the hippocampus of rats at the end of the study period. After administration of AlCl3, a reduction in discrimination index vs control rats (CI = 0.012 ± 0.08 vs Control = 0.076 ± 0.03), was observed. After phytochemical extract treatment, a significant increase in discrimination index values was observed in the PE group 0.4643 ± 0.13 vs CI group 0.012 ± 0.08. Additionally, the evaluation of immunohistochemistry showed an increase in GFAP positivity in the hippocampus of the CI groups, while a slight decrease was observed in the PE group. This work addressed a comprehensive methodology that utilized in silico tools to identify phytochemical compounds (carpaine and punicalagin) as potential candidates for affecting key proteins in CI. The phytochemical extract containing carpaine and punicalagin resulted in a trend in the decrease of GFAP expression in the hippocampus and improved recognition memory in rats with CI induced by age and AlCl3 administration.
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Affiliation(s)
- Cristian Gonzalez-Ruiz
- Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla, Estado de Mexico, Mexico
| | - Miguel Ortiz-Flores
- Escuela Superior de Medicina, Instituto Politécnico Nacional, Miguel Hidalgo, Mexico City, Mexico
| | - Jorge Bernal-Hernández
- Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla, Estado de Mexico, Mexico
| | - Rodrigo Mondragon-Lozano
- Researchers for Mexico CONAHCyT-Instituto Mexicano del Seguro Social, Unidad de Investigación Médica en Enfermedades Neurológicas, Hospital de Especialidades, Centro Médico Nacional Siglo XXI, Cuauhtémoc, Mexico city, Mexico
| | - Alam Palma-Guzman
- Instituto Mexicano del Seguro Social, Laboratorio de Histología, Coordinación de Investigación en Salud, Centro Médico Nacional Siglo XXI, Cuauhtémoc, Mexico City, Mexico
| | - Angélica Coyoy-Salgado
- Researchers for Mexico CONAHCyT-Instituto Mexicano del Seguro Social, Unidad de Investigación Médica en Enfermedades Neurológicas, Hospital de Especialidades, Centro Médico Nacional Siglo XXI, Cuauhtémoc, Mexico city, Mexico
| | - Hermelinda Salgado-Ceballos
- Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla, Estado de Mexico, Mexico.
- Instituto Mexicano del Seguro Social, Unidad de Investigación Médica en Enfermedades Neurológicas, Hospital de Especialidades, Centro Médico Nacional Siglo XXI, Cuauhtémoc, Mexico City, Mexico.
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Socodato R, Almeida TO, Portugal CC, Santos ECS, Tedim-Moreira J, Galvão-Ferreira J, Canedo T, Baptista FI, Magalhães A, Ambrósio AF, Brakebusch C, Rubinstein B, Moreira IS, Summavielle T, Pinto IM, Relvas JB. Microglial Rac1 is essential for experience-dependent brain plasticity and cognitive performance. Cell Rep 2023; 42:113447. [PMID: 37980559 DOI: 10.1016/j.celrep.2023.113447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 08/14/2023] [Accepted: 10/31/2023] [Indexed: 11/21/2023] Open
Abstract
Microglia, the largest population of brain immune cells, continuously interact with synapses to maintain brain homeostasis. In this study, we use conditional cell-specific gene targeting in mice with multi-omics approaches and demonstrate that the RhoGTPase Rac1 is an essential requirement for microglia to sense and interpret the brain microenvironment. This is crucial for microglia-synapse crosstalk that drives experience-dependent plasticity, a fundamental brain property impaired in several neuropsychiatric disorders. Phosphoproteomics profiling detects a large modulation of RhoGTPase signaling, predominantly of Rac1, in microglia of mice exposed to an environmental enrichment protocol known to induce experience-dependent brain plasticity and cognitive performance. Ablation of microglial Rac1 affects pathways involved in microglia-synapse communication, disrupts experience-dependent synaptic remodeling, and blocks the gains in learning, memory, and sociability induced by environmental enrichment. Our results reveal microglial Rac1 as a central regulator of pathways involved in the microglia-synapse crosstalk required for experience-dependent synaptic plasticity and cognitive performance.
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Affiliation(s)
- Renato Socodato
- Institute of Research and Innovation in Health (i3S) and Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal.
| | - Tiago O Almeida
- Institute of Research and Innovation in Health (i3S) and Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal; ICBAS - School of Medicine and Biomedical Sciences, Porto, Portugal
| | - Camila C Portugal
- Institute of Research and Innovation in Health (i3S) and Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal
| | - Evelyn C S Santos
- Institute of Research and Innovation in Health (i3S) and Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal; Department of Biomedicine, Faculty of Medicine of the University of Porto (FMUP), Porto, Portugal
| | - Joana Tedim-Moreira
- Institute of Research and Innovation in Health (i3S) and Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal; Department of Biomedicine, Faculty of Medicine of the University of Porto (FMUP), Porto, Portugal
| | - João Galvão-Ferreira
- Institute of Research and Innovation in Health (i3S) and Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal; Department of Biomedicine, Faculty of Medicine of the University of Porto (FMUP), Porto, Portugal
| | - Teresa Canedo
- Institute of Research and Innovation in Health (i3S) and Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal
| | - Filipa I Baptista
- Center for Innovative Biomedicine and Biotechnology (CIBB), Coimbra Institute for Clinical and Biomedical Research (iCBR), and Clinical Academic Center of Coimbra (CACC), University of Coimbra, Coimbra, Portugal
| | - Ana Magalhães
- Institute of Research and Innovation in Health (i3S) and Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal
| | - António F Ambrósio
- Center for Innovative Biomedicine and Biotechnology (CIBB), Coimbra Institute for Clinical and Biomedical Research (iCBR), and Clinical Academic Center of Coimbra (CACC), University of Coimbra, Coimbra, Portugal
| | - Cord Brakebusch
- Molecular Pathology Section, BRIC, Københavns Biocenter, Copenhagen, Denmark
| | | | - Irina S Moreira
- Department of Life Sciences, Center for Innovative Biomedicine and Biotechnology (CIBB) and CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Teresa Summavielle
- Institute of Research and Innovation in Health (i3S) and Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal; ESS.PP, Escola Superior de Saúde do Politécnico do Porto, Porto, Portugal
| | - Inês Mendes Pinto
- Institute of Research and Innovation in Health (i3S) and Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal; Department of Biomedicine, Faculty of Medicine of the University of Porto (FMUP), Porto, Portugal
| | - João B Relvas
- Institute of Research and Innovation in Health (i3S) and Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal; Department of Biomedicine, Faculty of Medicine of the University of Porto (FMUP), Porto, Portugal.
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49
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Jia M, Guo X, Liu R, Sun L, Wang Q, Wu J. Overexpress miR-132 in the Brain Parenchyma by a Non-invasive Way Improves Tissue Repairment and Releases Memory Impairment After Traumatic Brain Injury. Cell Mol Neurobiol 2023; 44:5. [PMID: 38104297 DOI: 10.1007/s10571-023-01435-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Accepted: 11/08/2023] [Indexed: 12/19/2023]
Abstract
Traumatic brain injury (TBI) is a serious public health problem worldwide, which could lead to an extremely high percentage of mortality and disability. Current treatment strategies mainly concentrate on neuronal protection and reconstruction, among them, exogenous neural stem cell (NSC) transplantation has long been regarded as the most effective curative treatment. However, due to secondary trauma, transplant rejection, and increased incidence of brain malignant tumor, a non-invasive therapy that enhanced endogenous neurogenesis was more suitable for TBI treatment. Our previous work has shown that miR-132 overexpression could improve neuronal differentiation of NSCs in vitro and in vivo. So, we engineered a new kind of AAV vector named AAV-PHP.eB which can transfect brain parenchyma through intravenous injection to overexpress miR-132 in brain after TBI. We found that miR-132 overexpression could reduce impact volume, promote neurogenesis in the dentate gyrus (DG), accelerate neuroblast migrating into the impact cortex, ameliorate microglia-mediated inflammatory reaction, and ultimately restore learning memory function. Our results revealed that AAV-PHP.eB-based miR-132 overexpression could improve endogenous tissue repairment and release clinical symptoms after traumatic brain injury. This work would provide a new therapeutic strategy for TBI treatment and other neurological disorders characterized by markable neuronal loss and memory impairment. miR-132 overexpression accelerates endogenous neurogenesis and releases TBI-induced tissue repairment and memory impairment. Controlled cortical impact onto the cortex would induce serious cortical injury and microglia accumulation in both cortex and hippocampus. Moreover, endogenous neuroblast could migrate around the injury core. miR-132 overexpression could accelerate neuroblast migration toward the injury core and decreased microglia accumulation in the ipsilateral cortex and hippocampus. miR-132 could be a suitable target on neuroprotective therapy after TBI.
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Affiliation(s)
- Meng Jia
- Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China
- China National Clinical Research Center for Neurological Diseases, Beijing, 100070, China
- Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, 100070, China
| | - Xi Guo
- Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China
- China National Clinical Research Center for Neurological Diseases, Beijing, 100070, China
- Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, 100070, China
| | - Ru Liu
- Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China
- China National Clinical Research Center for Neurological Diseases, Beijing, 100070, China
- Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, 100070, China
| | - Lei Sun
- Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China
- China National Clinical Research Center for Neurological Diseases, Beijing, 100070, China
- Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, 100070, China
| | - Qun Wang
- Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China
- China National Clinical Research Center for Neurological Diseases, Beijing, 100070, China
| | - Jianping Wu
- Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China.
- China National Clinical Research Center for Neurological Diseases, Beijing, 100070, China.
- Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, 100070, China.
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan, 430070, China.
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50
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Liu H, Huang Y, Yang J, Xu X, Dai Q, Zhang Y, Zhao L, Zhang M, Zhang J, Liu T, Zhong L. Involvement of estrogen receptor activation in kaempferol-3-O-glucoside's protection against aging-related cognition impairment and microglial inflammation. Exp Cell Res 2023; 433:113849. [PMID: 37926343 DOI: 10.1016/j.yexcr.2023.113849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 10/25/2023] [Accepted: 11/01/2023] [Indexed: 11/07/2023]
Abstract
Estrogens have been demonstrated to inhibit age-related cognitive decline via binding to estrogen receptors (ERs). As a natural flavonoid component of Cuscuta Chinensis Lam., Kaempferol-3-O-glucoside (K-3-G) not only possesses anti-neuroinflammatory potential but also functions as an agonist for ERα and ERβ. This study aimed to determine whether K-3-G improved cognition during the aging process, with an emphasis on its effect on microglial inflammation. In vivo, K-3-G (5 or 10 mg/kg/day) was orally given to the senescence-accelerated mouse prone 8 (SAMP8) mice from six to eight-month old. In addition to mitigating the memory and learning deficits of SAMP8 mice, K-3-G upregulated the expression of ERα and ERβ in their hippocampal CA1 region, with the higher dose being more effective. Less Iba-1+ microglial cells presented in SAMP8 mice treated with K-3-G. The formation of NLR Family Pyrin Domain Containing 3 (NLRP3) complex, production of pro-inflammatory cytokines and oxidative stress-related markers, as well as expression of pro-apoptotic proteins were reduced by K-3-G. In vitro, BV2 microglial cells exposed to oligomeric amyloid beta (Aβ)1-42 were treated with 100 μM K-3-G. K-3-G showed similar anti-inflammatory effects on BV2 cells as in vivo. K-3-G-induced alterations were partly diminished by fulvestrant, an ER antagonist. Moreover, dual-luciferase reporter system demonstrated that K-3-G induced ER expression by activating the transcription of estrogen-response elements (EREs). Collectively, these findings demonstrate that K-3-G may be a novel therapeutic agent for senescence-related cognitive impairment by inhibiting microglial inflammation through its action on ERs.
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Affiliation(s)
- Hong Liu
- Department of Pathology and Pathophysiology, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, China
| | - Yang Huang
- Graduate School, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, China
| | - Jing Yang
- Department of Pathology and Pathophysiology, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, China
| | - Xuejiao Xu
- Department of Internal Classic of Medicine, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, China
| | - Qiaomei Dai
- Department of Pathology and Pathophysiology, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, China
| | - Yuwei Zhang
- Department of Physiology, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, China
| | - Li Zhao
- Graduate School, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, China
| | - Mengdi Zhang
- Graduate School, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, China
| | - Jing Zhang
- Graduate School, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, China
| | - Tonghui Liu
- Graduate School, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, China
| | - Lili Zhong
- Department of Pathology, The First Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, China.
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