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Abedi A, Foroutan T, Mohaghegh Shalmani L, Dargahi L. Sex-dependent susceptibility to brain metabolic dysfunction and memory impairment in response to pre and postnatal high-fat diet. J Nutr Biochem 2024; 132:109675. [PMID: 38945454 DOI: 10.1016/j.jnutbio.2024.109675] [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: 05/15/2024] [Accepted: 05/31/2024] [Indexed: 07/02/2024]
Abstract
The developing brain is sensitive to the impacts of early-life nutritional intake. This study investigates whether maternal high fat diet (HFD) causes glucose metabolism impairment, neuroinflammation, and memory impairment in immature and adult offspring, and whether it may be affected by postweaning diets in a sex-dependent manner in adult offspring. After weaning, female rats were fed HFD (55.9% fat) or normal chow diet (NCD; 10% fat) for 8 weeks before mating, during pregnancy, and lactation. On postnatal day 21 (PND21), the male and female offspring of both groups were split into two new groups, and NCD or HFD feeding was maintained until PND180. On PND21 and PND180, brain glucose metabolism, inflammation, and Alzheimer's pathology-related markers were by qPCR. In adult offspring, peripheral insulin resistance parameters, spatial memory performance, and brain glucose metabolism (18F-FDG-PET scan and protein levels of IDE and GLUT3) were assessed. Histological analysis was also performed on PND21 and adult offspring. On PND21, we found that maternal HFD affected transcript levels of glucose metabolism markers in both sexes. In adult offspring, more profoundly in males, postweaning HFD in combination with maternal HFD induced peripheral and brain metabolic disturbances, impaired memory performance and elevated inflammation, dementia risk markers, and neuronal loss. Our results suggest that maternal HFD affects brain glucose metabolism in the early ages of both sexes. Postweaning HFD sex-dependently causes brain metabolic dysfunction and memory impairment in later-life offspring; effects that can be worsened in combination with maternal HFD.
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Affiliation(s)
- Azam Abedi
- Department of Animal Biology, Faculty of Biological Sciences, Kharazmi University, Tehran, Iran
| | - Tahereh Foroutan
- Department of Animal Biology, Faculty of Biological Sciences, Kharazmi University, Tehran, Iran.
| | - Leila Mohaghegh Shalmani
- Department of Toxicology and Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Leila Dargahi
- Neuroscience Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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2
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Shekho D, Mishra R, Kamal R, Bhatia R, Awasthi A. Breaking Barriers in Alzheimer's Disease: the Role of Advanced Drug Delivery Systems. AAPS PharmSciTech 2024; 25:207. [PMID: 39237748 DOI: 10.1208/s12249-024-02923-6] [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: 04/17/2024] [Accepted: 08/18/2024] [Indexed: 09/07/2024] Open
Abstract
Alzheimer's disease (AD), characterized by cognitive impairment, brain plaques, and tangles, is a global health concern affecting millions. It involves the build-up of amyloid-β (Aβ) and tau proteins, the formation of neuritic plaques and neurofibrillary tangles, cholinergic system dysfunction, genetic variations, and mitochondrial dysfunction. Various signaling pathways and metabolic processes are implicated in AD, along with numerous biomarkers used for diagnosis, risk assessment, and research. Despite these, there is no cure or effective treatment for AD. It is critically important to address this immediately to develop novel drug delivery systems (NDDS) capable of targeting the brain and delivering therapeutic agents to modulate the pathological processes of AD. This review summarizes AD, its pathogenesis, related signaling pathways, biomarkers, conventional treatments, the need for NDDS, and their application in AD treatment. It also covers preclinical, clinical, and ongoing trials, patents, and marketed AD formulations.
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Affiliation(s)
- Devank Shekho
- Department of Pharmaceutics, ISF College of Pharmacy, Moga, 142001, Punjab, India
| | - Ritika Mishra
- Department of Pharmaceutics, ISF College of Pharmacy, Moga, 142001, Punjab, India
| | - Raj Kamal
- Department of Quality Assurance, ISF College of Pharmacy, Moga, 142001, Punjab, India
| | - Rohit Bhatia
- Chitkara College of Pharmacy, Chitkara University, Rajpura, Punjab, India
| | - Ankit Awasthi
- Department of Pharmaceutics, ISF College of Pharmacy, Moga, 142001, Punjab, India.
- Chitkara College of Pharmacy, Chitkara University, Rajpura, Punjab, India.
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3
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Victor-Sami S, Kamali-Roosta A, Shamsaldeen YA. Methylglyoxal induces death in human brain neuronal cells (SH-SY5Y), prevented by metformin and dapagliflozin. J Diabetes Complications 2024; 38:108832. [PMID: 39116474 DOI: 10.1016/j.jdiacomp.2024.108832] [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: 05/10/2024] [Revised: 07/22/2024] [Accepted: 08/04/2024] [Indexed: 08/10/2024]
Abstract
Diabetes mellitus is a metabolic disorder caused by a dysfunction in insulin action or secretion, leading to an elevation in blood glucose levels. It is a highly prevalent condition and as a result, the NHS spends 10 % of its entire budget on diabetes mellitus care, that is equivalent to £10 billion a year. Diabetes mellitus has been linked with vascular and neurological complications which may be associated with the progression of neurodegeneration and Alzheimer's disease. Chronic hyperglycaemia increases the production of the reactive oxidant species (ROS) such as methylglyoxal (MGO). MGO has been linked with vascular complications, neuropathy and cytotoxicity. The main aim of this study was to investigate the potential beneficial effect of antidiabetic agents such as metformin and dapagliflozin on human brain neuronal cells (SH-SY5Y) treated with MGO. SH-SY5Y cells were cultured in DMEM/F12 media and subjected overnight incubation with one of the following treatment conditions: Control (untreated); MGO (1 μM); MGO (100 μM); metformin (100 μM) + MGO (100 μM); and dapagliflozin (10 μM) + MGO (100 μM). Several assays were conducted to explore the effect of the treatment groups on the SH-SY5Y cells. These included: MTT assay; LDH assay, peroxynitrite fluorescence assay, and laser scanning confocal microscopy. MGO (100 μM) led to significant cell injury and damage and significantly reduced the survival of the cells by approximately 50-75 %, associated with significant increase in peroxynitrite. The addition of metformin (100 μM) or dapagliflozin (10 μM) represented significant protective effects on the cells and prevented the cell damage caused by the high MGO concentration. As a result, the findings of this research reveal that MGO-induced cell damage may partly be mediated by the generation of peroxynitrite, while the antidiabetic agents such as metformin and dapagliflozin prevent brain cell death, which potentially may play prophylactic roles against the risk of dementia in diabetic patients.
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Affiliation(s)
- Samantha Victor-Sami
- Department of applied science, school of pharmacy, University of Brighton, BN24GJ, UK
| | - Ali Kamali-Roosta
- Department of applied science, school of pharmacy, University of Brighton, BN24GJ, UK
| | - Yousif A Shamsaldeen
- Department of applied science, school of pharmacy, University of Brighton, BN24GJ, UK.
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4
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Li X, Wang J, Zhang M, Li X, Fan Y, Zhou X, Sun Y, Qiu Z. Biological aging mediates the associations of metabolic score for insulin resistance with all-cause and cardiovascular disease mortality among US adults: A nationwide cohort study. Diabetes Obes Metab 2024; 26:3552-3564. [PMID: 38853301 DOI: 10.1111/dom.15694] [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: 03/25/2024] [Revised: 05/11/2024] [Accepted: 05/20/2024] [Indexed: 06/11/2024]
Abstract
AIM To investigate the associations of metabolic score for insulin resistance (METS-IR) with all-cause and cardiovascular disease (CVD)-specific mortality and the potential mediating role of biological ageing. METHODS A cohort of 19 204 participants from the National Health and Nutrition Examination Survey (NHANES) 1999-2018 was recruited for this study. Cox regression models, restricted cubic splines, and Kaplan-Meier survival curves were used to determine the relationships of METS-IR with all-cause and CVD-specific mortality. Mediation analyses were performed to explore the possible intermediary role of biological ageing markers, including phenotypic age (PhenoAge) and biological age (BioAge). RESULTS During a median follow-up of 9.17 years, we observed 2818 deaths, of which 875 were CVD-specific. Multivariable Cox regression showed that the highest METS-IR level (Q4) was associated with increased all-cause (hazard ratio [HR] 1.38, 95% confidence interval [CI] 1.14-1.67) and CVD mortality (HR 1.52, 95% CI 1.10-2.12) compared with the Q1 level. Restricted cubic splines showed a nonlinear relationship between METS-IR and all-cause mortality. Only METS-IR above the threshold (41.02 μg/L) was positively correlated with all-cause death. METS-IR had a linear positive relationship with CVD mortality. In mediation analyses, we found that PhenoAge mediated 51.32% (p < 0.001) and 41.77% (p < 0.001) of the association between METS-IR and all-cause and CVD-specific mortality, respectively. For BioAge, the mediating proportions of PhenoAge were 21.33% (p < 0.001) and 15.88% (p < 0.001), respectively. CONCLUSIONS This study highlights the detrimental effects of insulin resistance, as measured by METS-IR, on all-cause and CVD mortality. Moreover, it underscores the role of biological ageing in mediating these associations, emphasizing the need for interventions targeting both insulin resistance and ageing processes to mitigate mortality risks in metabolic disorders.
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Affiliation(s)
- Xiaoxuan Li
- Department of Oncology, Key Laboratory of Cancer Molecular and Translational Research, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Jia Wang
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Mengqi Zhang
- Department of Oncology, Key Laboratory of Cancer Molecular and Translational Research, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Xiangjun Li
- Breast Center, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yuchen Fan
- Department of Medicine, Qingdao University, Qingdao, China
| | - Xinbei Zhou
- Department of Critical Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yuxin Sun
- Department of Oncology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhenkang Qiu
- Interventional Medical Center, The Affiliated Hospital of Qingdao University, Qingdao, China
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Kerr NR, Mossman CW, Chou CH, Bunten JM, Kelty TJ, Childs TE, Rector RS, Arnold WD, Grisanti LA, Du X, Booth FW. Hindlimb immobilization induces insulin resistance and elevates mitochondrial ROS production in the hippocampus of female rats. J Appl Physiol (1985) 2024; 137:512-526. [PMID: 38961821 DOI: 10.1152/japplphysiol.00234.2024] [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: 04/01/2024] [Revised: 06/11/2024] [Accepted: 07/02/2024] [Indexed: 07/05/2024] Open
Abstract
Alzheimer's disease (AD) is the fifth leading cause of death in older adults, and treatment options are severely lacking. Recent findings demonstrate a strong relationship between skeletal muscle and cognitive function, with evidence supporting that muscle quality and cognitive function are positively correlated in older adults. Conversely, decreased muscle function is associated with a threefold increased risk of cognitive decline. Based on these observations, the purpose of this study was to investigate the negative effects of muscle disuse [via a model of hindlimb immobilization (HLI)] on hippocampal insulin sensitivity and mitochondrial function and identify the potential mechanisms involved. HLI for 10 days in 4-mo-old female Wistar rats resulted in the following novel findings: 1) hippocampal insulin resistance and deficits in whole body glucose homeostasis, 2) dramatically increased mitochondrial reactive oxygen species (ROS) production in the hippocampus, 3) elevated markers for amyloidogenic cleavage of amyloid precursor protein (APP) and tau protein in the hippocampus, 4) and reduced brain-derived neurotrophic factor (BDNF) expression. These findings were associated with global changes in iron homeostasis, with muscle disuse producing muscle iron accumulation in association with decreased serum and whole brain iron levels. We report the novel finding that muscle disuse alters brain iron homeostasis and reveal a strong negative correlation between muscle and brain iron content. Overall, HLI-induced muscle disuse has robust negative effects on hippocampal insulin sensitivity and ROS production in association with altered brain iron homeostasis. This work provides potential novel mechanisms that may help explain how loss of muscle function contributes to cognitive decline and AD risk.NEW & NOTEWORTHY Muscle disuse via hindlimb immobilization increased oxidative stress and insulin resistance in the hippocampus. These findings were in association with muscle iron overload in connection with iron dysregulation in the brain. Overall, our work identifies muscle disuse as a contributor to hippocampal dysfunction, potentially through an iron-based muscle-brain axis, highlighting iron dysregulation as a potential novel mechanism in the relationship between muscle health, cognitive function, and Alzheimer's disease risk.
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Affiliation(s)
- Nathan R Kerr
- Department of Biomedical Sciences, University of Missouri, Columbia, Missouri, United States
| | - Chandler W Mossman
- Veterinary Medical Diagnostic Laboratory, University of Missouri, Columbia, Missouri, United States
| | - Chih-Hsuan Chou
- Department of Biomedical Sciences, University of Missouri, Columbia, Missouri, United States
| | - Joshua M Bunten
- Department of Biomedical Sciences, University of Missouri, Columbia, Missouri, United States
| | - Taylor J Kelty
- Department of Biomedical Sciences, University of Missouri, Columbia, Missouri, United States
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri, United States
- NextGen Precision Health, University of Missouri, Columbia, Missouri, United States
| | - Thomas E Childs
- Department of Biomedical Sciences, University of Missouri, Columbia, Missouri, United States
| | - Randy Scott Rector
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri, United States
- NextGen Precision Health, University of Missouri, Columbia, Missouri, United States
- Research Service, Harry S. Truman Memorial Veterans Medical Center, University of Missouri, Columbia, Missouri, United States
- Department of Medicine, University of Missouri, Columbia, Missouri, United States
| | - William David Arnold
- NextGen Precision Health, University of Missouri, Columbia, Missouri, United States
- Department of Physical Medicine and Rehabilitation, University of Missouri, Columbia, Missouri, United States
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri, United States
- Department of Neurology, University of Missouri, Columbia, Missouri, United States
| | - Laurel A Grisanti
- Department of Biomedical Sciences, University of Missouri, Columbia, Missouri, United States
| | - Xiangwei Du
- Department of Biomedical Sciences, University of Missouri, Columbia, Missouri, United States
- Veterinary Medical Diagnostic Laboratory, University of Missouri, Columbia, Missouri, United States
| | - Frank W Booth
- Department of Biomedical Sciences, University of Missouri, Columbia, Missouri, United States
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri, United States
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri, United States
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri, United States
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6
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Nagayach A, Bhaskar R, Ghosh S, Singh KK, Han SS, Sinha JK. Advancing the understanding of diabetic encephalopathy through unravelling pathogenesis and exploring future treatment perspectives. Ageing Res Rev 2024; 100:102450. [PMID: 39134179 DOI: 10.1016/j.arr.2024.102450] [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: 06/03/2024] [Revised: 07/31/2024] [Accepted: 08/05/2024] [Indexed: 08/25/2024]
Abstract
Diabetic encephalopathy (DE), a significant micro-complication of diabetes, manifests as neurochemical, structural, behavioral, and cognitive alterations. This condition is especially dangerous for the elderly because aging raises the risk of neurodegenerative disorders and cognitive impairment, both of which can be made worse by diabetes. Despite its severity, diagnosis of this disease is challenging, and there is a paucity of information on its pathogenesis. The pivotal roles of various cellular pathways, activated or influenced by hyperglycemia, insulin sensitivity, amyloid accumulation, tau hyperphosphorylation, brain vasculopathy, neuroinflammation, and oxidative stress, are widely recognized for contributing to the potential causes of diabetic encephalopathy. We also reviewed current pharmacological strategies for DE encompassing a comprehensive approach targeting metabolic dysregulations and neurological manifestations. Antioxidant-based therapies hold promise in mitigating oxidative stress-induced neuronal damage, while anti-diabetic drugs offer neuroprotective effects through diverse mechanisms, including modulation of insulin signaling pathways and neuroinflammation. Additionally, tissue engineering and nanomedicine-based approaches present innovative strategies for targeted drug delivery and regenerative therapies for DE. Despite significant progress, challenges remain in translating these therapeutic interventions into clinical practice, including long-term safety, scalability, and regulatory approval. Further research is warranted to optimize these approaches and address remaining gaps in the management of DE and associated neurodegenerative disorders.
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Affiliation(s)
- Aarti Nagayach
- Department of Cancer Biology, College of Medicine, University of Cincinnati, Cincinnati, OH 45267, USA
| | - Rakesh Bhaskar
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, South Korea; Research Institute of Cell Culture, Yeungnam University, Gyeongsan 38541, South Korea
| | - Shampa Ghosh
- GloNeuro, Sector 107, Vishwakarma Road, Noida, Uttar Pradesh 201301 India
| | - Krishna Kumar Singh
- Symbiosis Centre for Information Technology, Symbiosis International (Deemed University), Rajiv Gandhi InfoTech Park, Hinjawadi, Pune, Maharashtra 411057, India
| | - Sung Soo Han
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, South Korea; Research Institute of Cell Culture, Yeungnam University, Gyeongsan 38541, South Korea.
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7
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Turkyilmaz A, Akin MN, Kasap B, Ozdemİr C, Demirtas Bilgic A, Edgunlu TG. AKT1 and MAPK8: New Targets for Gestational Diabetes Mellitus? Fetal Pediatr Pathol 2024:1-9. [PMID: 39177257 DOI: 10.1080/15513815.2024.2393357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 07/12/2024] [Accepted: 08/09/2024] [Indexed: 08/24/2024]
Abstract
Objective: Gestational diabetes mellitus (GDM) disrupts placental function and increases risks for pregnancy. This study investigates the potential involvement of AKT1 and MAPK8 genes, known for their roles in insulin resistance and cell signaling, in GDM pathophysiology. Methods: Placental tissues from GDM patients and healthy controls were analyzed using real-time PCR to quantify gene expression levels. In silico analysis further explored the functional implications of expression changes. Results: AKT1 and MAPK8 displayed significantly altered expression in GDM placentas compared to controls (p = 0.047 and p = 0.007, respectively). In silico analysis suggests potential functional consequences related to diabetes-associated pathways. Conclusion: This study identifies differential expression of AKT1 and MAPK8 in GDM placentas, suggesting their potential roles in the disease process. Further investigation into their functional contributions could provide valuable insights into GDM pathophysiology and potential therapeutic targets.
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Affiliation(s)
- Aysegul Turkyilmaz
- Faculty of Health Sciences, Department of Nutrition and Dietetics, Mugla Sıtkı Koçman University, Muğla, Turkey
| | - Melike Nur Akin
- Faculty of Medicine, Department of Gynaecology and Obstetrics, Mugla Sıtkı Koçman University, Muğla, Turkey
| | - Burcu Kasap
- Faculty of Medicine, Department of Gynaecology and Obstetrics, Mugla Sıtkı Koçman University, Muğla, Turkey
| | - Cilem Ozdemİr
- Graduate School of Natural and Applied Sciences, Department of Bioinformatics, Muğla Sıtkı Koçman University, Muğla, Turkey
| | - Aysegul Demirtas Bilgic
- Health Sciences Institution, Department of Medical Biology, Muğla Sıtkı Koçman University, Muğla, Turkey
| | - Tuba Gokdogan Edgunlu
- Faculty of Medicine, Department of Medical Biology, Mugla Sıtkı Koçman University, Muğla, Turkey
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8
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Cardinali CAEF, Martins YA, Moraes RCM, Costa AP, Alencar MB, Silber AM, Torrão AS. Exploring the Therapeutic Potential of Benfotiamine in a Sporadic Alzheimer's-Like Disease Rat Model: Insights into Insulin Signaling and Cognitive function. ACS Chem Neurosci 2024; 15:2982-2994. [PMID: 39007352 PMCID: PMC11342302 DOI: 10.1021/acschemneuro.4c00113] [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: 02/21/2024] [Revised: 06/26/2024] [Accepted: 06/27/2024] [Indexed: 07/16/2024] Open
Abstract
Alzheimer's disease (AD) is a complex neurodegenerative process, also considered a metabolic condition due to alterations in glucose metabolism and insulin signaling pathways in the brain, which share similarities with diabetes. This study aimed to investigate the therapeutic effects of benfotiamine (BFT), a vitamin B1 analog, in the early stages of the neurodegenerative process in a sporadic model of Alzheimer's-like disease induced by intracerebroventricular injection of streptozotocin (STZ). Supplementation with 150 mg/kg of BFT for 7 days reversed the cognitive impairment in short- and long-term memories caused by STZ in rodents. We attribute these effects to BFT's ability to modulate glucose transporters type 1 and 3 (GLUT1 and GLUT3) in the hippocampus, inhibit GSK3 activity in the hippocampus, and modulate the insulin signaling in the hippocampus and entorhinal cortex, as well as reduce the activation of apoptotic pathways (BAX) in the hippocampus. Therefore, BFT emerges as a promising and accessible intervention in the initial treatment of conditions similar to AD.
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Affiliation(s)
- Camila A. E. F. Cardinali
- Departamento
de Fisiologia e Biofisica, Instituto de Ciencias Biomedicas, Universidade de Sao Paulo, Sao Paulo 05508-000, Brazil
| | - Yandara A. Martins
- Departamento
de Fisiologia e Biofisica, Instituto de Ciencias Biomedicas, Universidade de Sao Paulo, Sao Paulo 05508-000, Brazil
| | - Ruan C. M. Moraes
- Departamento
de Fisiologia e Biofisica, Instituto de Ciencias Biomedicas, Universidade de Sao Paulo, Sao Paulo 05508-000, Brazil
- Department
of Psychiatry & Behavioral Neurosciences, The University of Alabama at Birmingham, Birmingham Alabama 35294, United States
| | - Andressa P. Costa
- Departamento
de Fisiologia e Biofisica, Instituto de Ciencias Biomedicas, Universidade de Sao Paulo, Sao Paulo 05508-000, Brazil
| | - Mayke B. Alencar
- Laboratory
of Biochemistry of Tryps−LaBTryps, Departamento de Parasitologia, Instituto de Ciencias Biomedicas, Universidade de
Sao Paulo, Sao Paulo 05508-000, Brazil
| | - Ariel M. Silber
- Laboratory
of Biochemistry of Tryps−LaBTryps, Departamento de Parasitologia, Instituto de Ciencias Biomedicas, Universidade de
Sao Paulo, Sao Paulo 05508-000, Brazil
| | - Andrea S. Torrão
- Departamento
de Fisiologia e Biofisica, Instituto de Ciencias Biomedicas, Universidade de Sao Paulo, Sao Paulo 05508-000, Brazil
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9
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Xu F, Dou L, Yu D, Wu X, Liu L, Man Y, Huang X. A Novel "Endocrine Hormone": The Diverse Role of Extracellular Vesicles in Multiorgan Insulin Resistance. Int J Med Sci 2024; 21:2081-2093. [PMID: 39239539 PMCID: PMC11373541 DOI: 10.7150/ijms.97217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Accepted: 07/24/2024] [Indexed: 09/07/2024] Open
Abstract
Insulin resistance is the primary contributor to the disruption in glucose homeostasis in the body, playing a significant causative role in many metabolic diseases. Insulin resistance is characterized by compensatory insulin secretion and reduced insulin responsiveness in target organs. Dysregulation of the interaction between insulin-secreting cells and insulin-responsive target organs is an important factor driving the progression of insulin resistance. Circulating endocrine hormones are important mediators mediating the interaction between insulin-secreting cells and insulin-responsive target organs. In addition to the classical hormones secreted by endocrine glands and organ-specific hormones secreted by metabolism-related organs (adipose tissue, muscle, liver, etc.), extracellular vesicles have been recognized as a novel class of endocrine hormones with a complex composition. Extracellular vesicles can transport signaling molecules, such as miRNAs and LncRNAs, to vital organs related to insulin resistance, in a manner akin to conventional hormones. The significant role in regulating the development of insulin resistance underscores the increasing interest in extracellular vesicles as essential contributors to this process. In this review, we summarize the three types of hormones (classical hormones, organokines and extracellular vesicles) that play a regulatory role in insulin resistance, and focus on the novel endocrine hormones, extracellular vesicles, to elaborate the mechanism of extracellular vesicles' regulation of insulin resistance progress from two aspects: the impact on insulin-secreting cells and the influence on insulin-responsive target organs. In addition, this paper outlines the clinical applications of extracellular vesicles in insulin resistance. A comprehensive understanding of the regulatory mechanisms and diagnostic status of the inter-organ network in insulin resistance has great potential to advance targeted therapeutic interventions and diagnostic markers, thereby benefiting both the prevention and treatment of insulin resistance.
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Affiliation(s)
- Fangzhi Xu
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/ National Center of Gerontology of National Health Commission, 100730, Beijing, P.R. China
| | - Lin Dou
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/ National Center of Gerontology of National Health Commission, 100730, Beijing, P.R. China
| | - Dongni Yu
- Department of Dermatology, Beijing hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, 100730, Beijing, P.R. China
| | - Xi Wu
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/ National Center of Gerontology of National Health Commission, 100730, Beijing, P.R. China
| | - Longteng Liu
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/ National Center of Gerontology of National Health Commission, 100730, Beijing, P.R. China
| | - Yong Man
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/ National Center of Gerontology of National Health Commission, 100730, Beijing, P.R. China
| | - Xiuqing Huang
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/ National Center of Gerontology of National Health Commission, 100730, Beijing, P.R. China
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10
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Wei C, Li X, Jin Y, Zhang Y, Yuan Q. Does the liver facilitate aging-related cognitive impairment: Conversation between liver and brain during exercise? J Cell Physiol 2024; 239:e31287. [PMID: 38704693 DOI: 10.1002/jcp.31287] [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: 01/13/2024] [Revised: 03/24/2024] [Accepted: 04/16/2024] [Indexed: 05/07/2024]
Abstract
Liver, an important regulator of metabolic homeostasis, is critical for healthy brain function. In particular, age-related neurodegenerative diseases seriously reduce the quality of life for the elderly. As population aging progresses rapidly, unraveling the mechanisms that effectively delay aging has become critical. Appropriate exercise is reported to improve aging-related cognitive impairment. Whereas current studies focused on exploring the effect of exercise on the aging brain itself, ignoring the persistent effects of peripheral organs on the brain through the blood circulation. The aim of this paper is to summarize the communication and aging processes of the liver and brain and to emphasize the metabolic mechanisms of the liver-brain axis about exercise ameliorating aging-related neurodegenerative diseases. A comprehensive understanding of the potential mechanisms about exercise ameliorating aging is critical for improving adaptation to age-related brain changes and formulating effective interventions against age-related cognitive decline.
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Affiliation(s)
- Changling Wei
- School of Sports Medicine and Health, Chengdu Sport University, Chengdu, Sichuan, China
| | - Xue Li
- School of Sports Medicine and Health, Chengdu Sport University, Chengdu, Sichuan, China
| | - Yu Jin
- School of Sports Medicine and Health, Chengdu Sport University, Chengdu, Sichuan, China
| | - Yuanting Zhang
- School of Sports Medicine and Health, Chengdu Sport University, Chengdu, Sichuan, China
| | - Qiongjia Yuan
- School of Sports Medicine and Health, Chengdu Sport University, Chengdu, Sichuan, China
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Arjmand S, Ilaghi M, Sisakht AK, Guldager MB, Wegener G, Landau AM, Gjedde A. Regulation of mitochondrial dysfunction by estrogens and estrogen receptors in Alzheimer's disease: A focused review. Basic Clin Pharmacol Toxicol 2024; 135:115-132. [PMID: 38801027 DOI: 10.1111/bcpt.14035] [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: 03/01/2024] [Revised: 05/02/2024] [Accepted: 05/07/2024] [Indexed: 05/29/2024]
Abstract
Alzheimer's disease (AD) is a neurodegenerative disorder that primarily manifests itself by progressive memory loss and cognitive decline, thus significantly affecting memory functions and quality of life. In this review, we proceed from the understanding that the canonical amyloid-β hypothesis, while significant, has faced setbacks, highlighting the need to adopt a broader perspective considering the intricate interplay of diverse pathological pathways for effective AD treatments. Sex differences in AD offer valuable insights into a better understanding of its pathophysiology. Fluctuation of the levels of ovarian sex hormones during perimenopause is associated with changes in glucose metabolism, as a possible window of opportunity to further understand the roles of sex steroid hormones and their associated receptors in the pathophysiology of AD. We review these dimensions, emphasizing the potential of estrogen receptors (ERs) to reveal mitochondrial functions in the search for further research and therapeutic strategies for AD pharmacotherapy. Understanding and addressing the intricate interactions of mitochondrial dysfunction and ERs potentially pave the way for more effective approaches to AD therapy.
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Affiliation(s)
- Shokouh Arjmand
- Translational Neuropsychiatry Unit, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Mehran Ilaghi
- Institute of Neuropharmacology, Kerman Neuroscience Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Ali Karimi Sisakht
- Faculty of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Matti Bock Guldager
- Translational Neuropsychiatry Unit, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Gregers Wegener
- Translational Neuropsychiatry Unit, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Anne M Landau
- Translational Neuropsychiatry Unit, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Albert Gjedde
- Translational Neuropsychiatry Unit, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
- Department of Neuroscience, University of Copenhagen, Copenhagen, Denmark
- Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec, Canada
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12
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Zamora MG, García-Lluch G, Moreno L, Pardo J, Pericas CC. Assessment of sodium-glucose cotransporter 2 inhibitors (SGLT2i) and other antidiabetic agents in Alzheimer's disease: A population-based study. Pharmacol Res 2024; 206:107295. [PMID: 38971270 DOI: 10.1016/j.phrs.2024.107295] [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: 03/05/2024] [Revised: 06/18/2024] [Accepted: 07/03/2024] [Indexed: 07/08/2024]
Abstract
The lack of effective treatments for dementia has led to explore the potential of antidiabetic agents as a possible approach. This cross-sectional and population-based study aimed to investigate the relationship between each antidiabetic drug and their defined daily doses (DDDs) and the use of anti-Alzheimer's disease (AD) drugs in order to establish new possible hypotheses about the role of antidiabetic drugs in AD. For that purpose, a database containing information on medications prescribed to 233183 patients aged 50 years or older between 2018 and 2020 was used. DDDs were calculated according to the ATC/DDD index 2023. Statistical analyses, with logistic regression, were carried out to assess antidiabetic and anti-AD drugs consumption. A total of 91836 patients who were prescribed at least one antihypertensive, antidiabetic, or lipid-modifying agent were included in the study; specifically, 29260 patients were prescribed antidiabetic medication. Among the antidiabetic agents, glucagon-like peptide-1 analogs (GLP-1) DDDs were likely to have a positive association with anti-AD drugs in people aged between 70 and 80 years. Additionally, sodium-glucose cotransporter 2 inhibitors (SGLT2i) were prone to have a positive association with anti-AD drug usage across almost every age. However, insulin usage was associated with an increased usage of anti-AD agents. In conclusion, there is evidence suggesting a correlation between certain antidiabetic agents and dementia. Specifically, GLP-1 and SGLT2i might be associated with lower odds of anti-AD drugs usage, while insulins might be linked to higher odds of using anti-AD drugs.
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Affiliation(s)
- Mar Garcia Zamora
- Research Group in Alzheimer Disease. Instituto de Investigación Sanitaria La Fe, Valencia, Spain; Cathedra DeCo MICOF-CEU UCH, University Cardenal Herrera-CEU, CEU Universities, Valencia 46115, Spain
| | - Gemma García-Lluch
- Research Group in Alzheimer Disease. Instituto de Investigación Sanitaria La Fe, Valencia, Spain; Cathedra DeCo MICOF-CEU UCH, University Cardenal Herrera-CEU, CEU Universities, Valencia 46115, Spain
| | - Lucrecia Moreno
- Cathedra DeCo MICOF-CEU UCH, University Cardenal Herrera-CEU, CEU Universities, Valencia 46115, Spain; Department of Pharmacy, Universidad Cardenal Herrera-CEU, CEU Universities, Valencia 46115, Spain
| | - Juan Pardo
- Embedded Systems and Artificial Intelligence Group, Universidad Cardenal Herrera-CEU, CEU Universities, Valencia 46115, Spain.
| | - Consuelo Cháfer Pericas
- Research Group in Alzheimer Disease. Instituto de Investigación Sanitaria La Fe, Valencia, Spain.
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13
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Gao CY, Qin GF, Zheng MC, Tian MJ, He YN, Wang PW. Banxia Xiexin Decoction Alleviated Cerebral Glucose Metabolism Disorder by Regulating Intestinal Microbiota in APP/PS1 Mice. Chin J Integr Med 2024; 30:701-712. [PMID: 37987962 DOI: 10.1007/s11655-023-3606-3] [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] [Accepted: 03/17/2023] [Indexed: 11/22/2023]
Abstract
OBJECTIVE To identify whether Banxia Xiexin Decoction (BXD) alleviates cerebral glucose metabolism disorder by intestinal microbiota regulation in APP/PS1 mice. METHODS Forty-five 3-month-old male APP/PS1 mice were divided into 3 groups using a random number table (n=15 per group), including a model group (MG), a liraglutide group (LG) and a BXD group (BG). Fifteen 3-month-old male C57BL/6J wild-type mice were used as the control group (CG). Mice in the BG were administered BXD granules by gavage at a dose of 6 g/(kg•d) for 3 months, while mice in the LG were injected intraperitoneally once daily with Liraglutide Injection (25 nmol/kg) for 3 months. Firstly, liquid chromatography with tandem-mass spectrometry was used to analyze the active components of BXD granules and the medicated serum of BXD. Then, the cognitive deficits, Aβ pathological change and synaptic plasticity markers, including synaptophysin (SYP) and postsynaptic density protein 95 (PSD95), were measured in APP/PS1 mice. Brain glucose uptake was detected by micropositron emission tomography. Intestinal microbial constituents were detected by 16S rRNA sequencing. The levels of intestinal glucagon-like peptide 1 (GLP-1) and cerebral GLP-1 receptor (GLP-1R), as well as the phosphoinositide-3-kinase/protein kinase B/glycogen synthase kinase-3β (PI3K/Akt/GSK3β) insulin signaling pathway were determined by immunohistochemical (IHC) staining and Western blot analysis, respectively. RESULTS BXD ameliorated cognitive deficits and Aβ pathological features (P<0.01). The expressions of SYP and PSD95 in the BG were higher than those in the MG (P<0.01). Brain glucose uptake in the BG was higher than that in the MG (P<0.01). The intestinal microbial composition in the BG was partially reversed. The levels of intestinal GLP-1 in the BG were higher than those in the MG (P<0.01). Compared with the MG, the expression levels of hippocampal GLP-1R, Akt, PI3K and p-PI3K in the BG were significantly increased (P<0.01), while the levels of GSK3β were reduced (P<0.01). CONCLUSION BXD exhibited protective effects against Alzheimer's disease by regulating the gut microbiota/GLP-1/GLP-1R, enhancing PI3K/Akt/GSK3β insulin signaling pathway, and improving brain glucose metabolism.
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Affiliation(s)
- Chen-Yan Gao
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, 100700, China
| | - Gao-Feng Qin
- Neurology Department, Binzhou Medical University Hospital, Binzhou, Shandong Province, 256603, China
| | - Ming-Cui Zheng
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, 100700, China
| | - Mei-Jing Tian
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, 100700, China
| | - Yan-Nan He
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, 100700, China
| | - Peng-Wen Wang
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, 100700, China.
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14
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Abdulhameed N, Babin A, Hansen K, Weaver R, Banks WA, Talbot K, Rhea EM. Comparing regional brain uptake of incretin receptor agonists after intranasal delivery in CD-1 mice and the APP/PS1 mouse model of Alzheimer's disease. Alzheimers Res Ther 2024; 16:173. [PMID: 39085976 PMCID: PMC11293113 DOI: 10.1186/s13195-024-01537-1] [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: 04/29/2024] [Accepted: 07/17/2024] [Indexed: 08/02/2024]
Abstract
Targeting brain insulin resistance (BIR) has become an attractive alternative to traditional therapeutic treatments for Alzheimer's disease (AD). Incretin receptor agonists (IRAs), targeting either or both of the glucagon-like peptide 1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP) receptors, have proven to reverse BIR and improve cognition in mouse models of AD. We previously showed that many, but not all, IRAs can cross the blood-brain barrier (BBB) after intravenous (IV) delivery. Here we determined if widespread brain uptake of IRAs could be achieved by circumventing the BBB using intranasal (IN) delivery, which has the added advantage of minimizing adverse gastrointestinal effects of systemically delivered IRAs. Of the 5 radiolabeled IRAs tested (exenatide, dulaglutide, semaglutide, DA4-JC, and DA5-CH) in CD-1 mice, exenatide, dulaglutide, and DA4-JC were successfully distributed throughout the brain following IN delivery. We observed significant sex differences in uptake for DA4-JC. Dulaglutide and DA4-JC exhibited high uptake by the hippocampus and multiple neocortical areas. We further tested and found the presence of AD-associated Aβ pathology minimally affected uptake of dulaglutide and DA4-JC. Of the 5 tested IRAs, dulaglutide and DA4-JC are best capable of accessing brain regions most vulnerable in AD (neocortex and hippocampus) after IN administration. Future studies will need to be performed to determine if IN IRA delivery can reduce BIR in AD or animal models of that disorder.
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Affiliation(s)
- Noor Abdulhameed
- Veterans Affairs Puget Sound Health Care System, Geriatrics Research Education and Clinical Center, 1660 S. Columbian Way, Seattle, WA, 98108, USA
| | - Alice Babin
- Veterans Affairs Puget Sound Health Care System, Geriatrics Research Education and Clinical Center, 1660 S. Columbian Way, Seattle, WA, 98108, USA
| | - Kim Hansen
- Veterans Affairs Puget Sound Health Care System, Geriatrics Research Education and Clinical Center, 1660 S. Columbian Way, Seattle, WA, 98108, USA
| | - Riley Weaver
- Veterans Affairs Puget Sound Health Care System, Geriatrics Research Education and Clinical Center, 1660 S. Columbian Way, Seattle, WA, 98108, USA
| | - William A Banks
- Veterans Affairs Puget Sound Health Care System, Geriatrics Research Education and Clinical Center, 1660 S. Columbian Way, Seattle, WA, 98108, USA
- Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Washington School of Medicine, Seattle, WA, 98498, USA
| | - Konrad Talbot
- Departments of Neurosurgery, Pathology and Human Anatomy, and Basic Sciences, Loma Linda University School of Medicine, Loma Linda, CA, 92354, USA.
| | - Elizabeth M Rhea
- Veterans Affairs Puget Sound Health Care System, Geriatrics Research Education and Clinical Center, 1660 S. Columbian Way, Seattle, WA, 98108, USA.
- Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Washington School of Medicine, Seattle, WA, 98498, USA.
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15
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Bian X, Li M, Lou S. Resistance training boosts lactate transporters and synaptic proteins in insulin-resistance mice. Heliyon 2024; 10:e34425. [PMID: 39082040 PMCID: PMC11284409 DOI: 10.1016/j.heliyon.2024.e34425] [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: 02/12/2024] [Revised: 07/09/2024] [Accepted: 07/09/2024] [Indexed: 08/02/2024] Open
Abstract
Background This investigation delineates the influence of resistance training on the expression of synaptic plasticity-related proteins in the hippocampi of insulin-resistant mice and explores the underlying molecular mechanisms. Methods Six-week-old male C57BL/6 J mice were stratified into a control group and a high-fat diet group to induce insulin resistance over a 12-week period. Subsequently, the mice were further divided into sedentary and resistance training cohorts, with the latter engaging in a 12-week ladder-climbing regimen. Post-intervention, blood, and hippocampal specimens were harvested for analytical evaluation. Results In the insulin-resistant mice, elevated blood lactate levels were observed alongside diminished expression of synaptic plasticity-related proteins, monocarboxylate transporters (MCTs), and reduced phosphorylation of protein kinase B (Akt) and mechanistic target of rapamycin (mTOR). In contrast, the expression of eukaryotic translation initiation factor 4 E-binding protein 2 was significantly augmented. Resistance training mitigated insulin resistance, decreased blood lactate levels, and enhanced the expression and phosphorylation of mTOR, regulatory-associated protein of mTOR, MCTs, and synaptic plasticity-related proteins. Conclusions Resistance training mitigates insulin resistance and improves hippocampal synaptic plasticity by normalizing blood lactate levels and enhancing mTOR, MCTs, and synaptic plasticity-related proteins. It may also activate mTORC1 via the PI3K/Akt pathway, promote lactate utilization, and enhance synaptic plasticity proteins, potentially alleviating peripheral insulin resistance. Further research is needed to confirm these mechanisms.
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Affiliation(s)
- Xuepeng Bian
- Department of Rehabilitation, School of International Medical Technology, Shanghai Sanda University, Shanghai, China
- School of Exercise and Health, Shanghai University of Sport, Shanghai, China
| | - Mingming Li
- School of Exercise and Health, Shanghai University of Sport, Shanghai, China
| | - Shujie Lou
- School of Exercise and Health, Shanghai University of Sport, Shanghai, China
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16
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Gendron WH, Fertan E, Roddick KM, Wong AA, Maliougina M, Hiani YE, Anini Y, Brown RE. Intranasal insulin treatment ameliorates spatial memory, muscular strength, and frailty deficits in 5xFAD mice. Physiol Behav 2024; 281:114583. [PMID: 38750806 DOI: 10.1016/j.physbeh.2024.114583] [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: 11/29/2023] [Revised: 05/11/2024] [Accepted: 05/13/2024] [Indexed: 05/19/2024]
Abstract
The 5xFAD mouse model shows age-related weight loss as well as cognitive and motor deficits. Metabolic dysregulation, especially impaired insulin signaling, is also present in AD. This study examined whether intranasal delivery of insulin (INI) at low (0.875 U) or high (1.750 U) doses would ameliorate these deficits compared to saline in 10-month-old female 5xFAD and B6SJL wildtype (WT) mice. INI increased forelimb grip strength in the wire hang test in 5xFAD mice in a dose-dependent manner but did not improve the performance of 5xFAD mice on the balance beam. High INI doses reduced frailty scores in 5xFAD mice and improved spatial memory in both acquisition and reversal probe trials in the Morris water maze. INI increased swim speed in 5xFAD mice but had no effect on object recognition memory or working memory in the spontaneous alternation task, nor did it improve memory in the contextual or cued fear memory tasks. High doses of insulin increased the liver, spleen, and kidney weights and reduced brown adipose tissue weights. P-Akt signaling in the hippocampus was increased by insulin in a dose-dependent manner. Altogether, INI increased strength, reduced frailty scores, and improved visual spatial memory. Hypoglycemia was not present after INI, however alterations in tissue and organ weights were present. These results are novel and important as they indicate that intra-nasal insulin can reverse cognitive, motor and frailty deficits found in this mouse model of AD.
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Affiliation(s)
- William H Gendron
- Departments of Psychology and Neuroscience, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
| | - Emre Fertan
- Departments of Psychology and Neuroscience, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
| | - Kyle M Roddick
- Departments of Psychology and Neuroscience, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
| | - Aimée A Wong
- Departments of Psychology and Neuroscience, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
| | - Maria Maliougina
- Departments of Physiology and Biophysics, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
| | - Yassine El Hiani
- Departments of Physiology and Biophysics, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
| | - Younes Anini
- Departments of Physiology and Biophysics, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada; Departments of Obstetrics and Gynecology, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
| | - Richard E Brown
- Departments of Psychology and Neuroscience, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada; Departments of Physiology and Biophysics, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada.
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Le Thuc O, García-Cáceres C. Obesity-induced inflammation: connecting the periphery to the brain. Nat Metab 2024; 6:1237-1252. [PMID: 38997442 DOI: 10.1038/s42255-024-01079-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 06/11/2024] [Indexed: 07/14/2024]
Abstract
Obesity is often associated with a chronic, low-grade inflammatory state affecting the entire body. This sustained inflammatory state disrupts the coordinated communication between the periphery and the brain, which has a crucial role in maintaining homeostasis through humoural, nutrient-mediated, immune and nervous signalling pathways. The inflammatory changes induced by obesity specifically affect communication interfaces, including the blood-brain barrier, glymphatic system and meninges. Consequently, brain areas near the third ventricle, including the hypothalamus and other cognition-relevant regions, become susceptible to impairments, resulting in energy homeostasis dysregulation and an elevated risk of cognitive impairments such as Alzheimer's disease and dementia. This Review explores the intricate communication between the brain and the periphery, highlighting the effect of obesity-induced inflammation on brain function.
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Affiliation(s)
- Ophélia Le Thuc
- Institute for Diabetes and Obesity, Helmholtz Diabetes Center at Helmholtz Zentrum München, Neuherberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Cristina García-Cáceres
- Institute for Diabetes and Obesity, Helmholtz Diabetes Center at Helmholtz Zentrum München, Neuherberg, Germany.
- German Center for Diabetes Research (DZD), Neuherberg, Germany.
- Medizinische Klinik und Poliklinik IV, Klinikum der Universität, Ludwig-Maximilians-Universität München, Munich, Germany.
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18
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Arnold SE, Hendrix S, Nicodemus‐Johnson J, Knowlton N, Williams VJ, Burns JM, Crane M, McManus AJ, Vaishnavi SN, Arvanitakis Z, Neugroschl J, Bell K, Trombetta BA, Carlyle BC, Kivisäkk P, Dodge HH, Tanzi RE, Yeramian PD, Leslie K. Biological effects of sodium phenylbutyrate and taurursodiol in Alzheimer's disease. ALZHEIMER'S & DEMENTIA (NEW YORK, N. Y.) 2024; 10:e12487. [PMID: 39131742 PMCID: PMC11310855 DOI: 10.1002/trc2.12487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 03/25/2024] [Accepted: 05/13/2024] [Indexed: 08/13/2024]
Abstract
INTRODUCTION Sodium phenylbutyrate and taurursodiol (PB and TURSO) is hypothesized to mitigate endoplasmic reticulum stress and mitochondrial dysfunction, two of many mechanisms implicated in Alzheimer's disease (AD) pathophysiology. METHODS The first-in-indication phase 2a PEGASUS trial was designed to gain insight into PB and TURSO effects on mechanistic targets of engagement and disease biology in AD. The primary clinical efficacy outcome was a global statistical test combining three endpoints relevant to disease trajectory (cognition [Mild/Moderate Alzheimer's Disease Composite Score], function [Functional Activities Questionnaire], and total hippocampal volume on magnetic resonance imaging). Secondary clinical outcomes included various cognitive, functional, and neuropsychiatric assessments. Cerebrospinal fluid (CSF) biomarkers spanning multiple pathophysiological pathways in AD were evaluated in participants with both baseline and Week 24 samples (exploratory outcome). RESULTS PEGASUS enrolled 95 participants (intent-to-treat [ITT] cohort); cognitive assessments indicated significantly greater baseline cognitive impairment in the PB and TURSO (n = 51) versus placebo (n = 44) group. Clinical efficacy outcomes did not significantly differ between treatment groups in the ITT cohort. CSF interleukin-15 increased from baseline to Week 24 within the placebo group (n = 34). In the PB and TURSO group (n = 33), reductions were observed in core AD biomarkers phosphorylated tau-181 (p-tau181) and total tau; synaptic and neuronal degeneration biomarkers neurogranin and fatty acid binding protein-3 (FABP3); and gliosis biomarker chitinase 3-like protein 1 (YKL-40), while the oxidative stress marker 8-hydroxy-2-deoxyguanosine (8-OHdG) increased. Between-group differences were observed for the Aβ42/40 ratio, p-tau181, total tau, neurogranin, FABP3, YKL-40, interleukin-15, and 8-OHdG. Additional neurodegeneration, inflammation, and metabolic biomarkers showed no differences between groups. DISCUSSION While between-group differences in clinical outcomes were not observed, most likely due to the small sample size and relatively short treatment duration, exploratory biomarker analyses suggested that PB and TURSO engages multiple pathophysiologic pathways in AD. Highlights Proteostasis and mitochondrial stress play key roles in Alzheimer's disease (AD).Sodium phenylbutyrate and taurursodiol (PB and TURSO) targets these mechanisms.The PEGASUS trial was designed to assess PB and TURSO effects on biologic AD targets.PB and TURSO reduced exploratory biomarkers of AD and neurodegeneration.Supports further clinical development of PB and TURSO in neurodegenerative diseases.
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Affiliation(s)
- Steven E. Arnold
- Department of NeurologyMassachusetts General HospitalHarvard Medical SchoolBostonMassachusettsUSA
| | | | | | | | - Victoria J. Williams
- Department of MedicineUniversity of Wisconsin‐MadisonSchool of Medicine and Public HealthMadisonWisconsinUSA
| | - Jeffrey M. Burns
- University of Kansas Alzheimer's Disease Research CenterFairwayKansasUSA
| | - Monica Crane
- Genesis Neuroscience ClinicKnoxvilleTennesseeUSA
| | - Alison J. McManus
- Department of NeurologyMassachusetts General HospitalHarvard Medical SchoolBostonMassachusettsUSA
| | - Sanjeev N. Vaishnavi
- Department of NeurologyPenn Memory CenterPerelman School of Medicine at the University of PennsylvaniaPhiladelphiaPennsylvaniaUSA
| | - Zoe Arvanitakis
- Rush Alzheimer's Disease CenterRush University Medical CenterChicagoIllinoisUSA
| | - Judith Neugroschl
- Department of PsychiatryIcahn School of Medicine at Mount SinaiNew YorkNew YorkUSA
| | - Karen Bell
- Department of NeurologyColumbia UniversityNew YorkNew YorkUSA
| | - Bianca A. Trombetta
- Department of NeurologyMassachusetts General HospitalHarvard Medical SchoolBostonMassachusettsUSA
| | - Becky C. Carlyle
- Department of PhysiologyAnatomy & Genetics and Kavli Institute for Nanoscience DiscoveryUniversity of OxfordOxfordUK
| | - Pia Kivisäkk
- Department of NeurologyMassachusetts General HospitalHarvard Medical SchoolBostonMassachusettsUSA
| | - Hiroko H. Dodge
- Department of NeurologyMassachusetts General HospitalHarvard Medical SchoolBostonMassachusettsUSA
| | - Rudolph E. Tanzi
- Department of NeurologyGenetics and Aging Research UnitMcCance Center for Brain HealthMassachusetts General HospitalHarvard UniversityBostonMassachusettsUSA
| | | | - Kent Leslie
- Amylyx Pharmaceuticals, Inc.CambridgeMassachusettsUSA
- Present address:
Division of Biology and Biological Engineering Graduate ProgramCalifornia Institute of TechnologyPasadenaCAUSA
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19
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Nagasawa K, Matsumura K, Uchida T, Suzuki Y, Nishimura A, Okubo M, Igeta Y, Kobayashi T, Sakurai T, Mori Y. Global cognition and executive functions of older adults with type 1 diabetes mellitus without dementia. J Diabetes Investig 2024; 15:922-930. [PMID: 38525910 PMCID: PMC11215676 DOI: 10.1111/jdi.14191] [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: 10/25/2023] [Revised: 02/23/2024] [Accepted: 03/07/2024] [Indexed: 03/26/2024] Open
Abstract
AIMS/INTRODUCTION This study aimed to characterize the global cognition and executive functions of older adults with type 1 diabetes mellitus in comparison with type 2 diabetes mellitus. MATERIALS AND METHODS This study included 37 patients with type 1 diabetes mellitus aged ≥65 years and 37 age- and sex-matched patients with type 2 diabetes mellitus. Patients with dementia scoring <24 on the Mini-Mental State Examination were excluded. General cognition, memory, classic, and practical executive function were investigated. RESULTS Patients with type 1 diabetes mellitus demonstrated lower psychomotor speed scores on Trail Making Tests A and B (P < 0.001, P < 0.013) than those with type 2 diabetes mellitus. The dysexecutive syndrome behavioral assessment revealed similar results in patients with types 1 and 2 diabetes mellitus. The Wechsler Memory Scale-Revised verbal episodic memory and Montreal Cognitive Assessment Japanese version were similar in terms of general cognition, but worse delayed recall subset on the latter was associated with type 2 diabetes mellitus (P = 0.038). A worse Trail Making Test-A performance was associated with type 1 diabetes mellitus and age (P < 0.004, P < 0.029). CONCLUSIONS Executive function of psychomotor speed was worse in older outpatient adults without dementia with type 1 diabetes mellitus than in those with type 2 diabetes mellitus but with no significant differences in the comprehensive and practical behavioral assessment of dysexecutive syndrome. Patients with type 1 diabetes had more severely impaired executive function, whereas those with type 2 had greater impaired memory than executive function.
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Affiliation(s)
- Kaoru Nagasawa
- Department of Endocrinology and MetabolismToranomon HospitalTokyoJapan
| | - Kimio Matsumura
- Department of Endocrinology and MetabolismToranomon HospitalTokyoJapan
| | - Takayasu Uchida
- Department of Endocrinology and MetabolismToranomon HospitalTokyoJapan
| | - Yuya Suzuki
- Department of Endocrinology and MetabolismToranomon HospitalTokyoJapan
| | | | - Minoru Okubo
- Okinaka Memorial Institute for Medical ResearchTokyoJapan
| | | | | | - Takashi Sakurai
- Department of Prevention and Care Science, Research InstituteNational Center for Geriatrics and GerontologyObuJapan
| | - Yasumichi Mori
- Department of Endocrinology and MetabolismToranomon HospitalTokyoJapan
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20
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Ibrahim AM, Singh DKA, Ludin AFM, Sakian NIM, Rivan NFM, Shahar S. Cardiovascular risk factors among older persons with cognitive frailty in middle income country. World J Clin Cases 2024; 12:3076-3085. [PMID: 38898873 PMCID: PMC11185391 DOI: 10.12998/wjcc.v12.i17.3076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 02/11/2024] [Accepted: 04/15/2024] [Indexed: 06/04/2024] Open
Abstract
BACKGROUND Cognitive frailty, characterized by the coexistence of cognitive impairment and physical frailty, represents a multifaceted challenge in the aging population. The role of cardiovascular risk factors in this complex interplay is not yet fully understood. AIM To investigate the relationships between cardiovascular risk factors and older persons with cognitive frailty by pooling data from two cohorts of studies in Malaysia. METHODS A comprehensive approach was employed, with a total of 512 community-dwelling older persons aged 60 years and above, involving two cohorts of older persons from previous studies. Datasets related to cardiovascular risks, namely sociodemographic factors, and cardiovascular risk factors, including hypertension, diabetes, hypercholesterolemia, anthropometric characteristics and biochemical profiles, were pooled for analysis. Cognitive frailty was defined based on the Clinical Dementia Rating scale and Fried frailty score. Cardiovascular risk was determined using Framingham risk score. Statistical analyses were conducted using SPSS version 21. RESULTS Of the study participants, 46.3% exhibited cognitive frailty. Cardiovascular risk factors including hypertension (OR:1.60; 95%CI: 1.12-2.30), low fat-free mass (OR:0.96; 95%CI: 0.94-0.98), high percentage body fat (OR:1.04; 95%CI: 1.02-1.06), high waist circumference (OR:1.02; 95%CI: 1.01-1.04), high fasting blood glucose (OR:1.64; 95%CI: 1.11-2.43), high Framingham risk score (OR:1.65; 95%CI: 1.17-2.31), together with sociodemographic factors, i.e., being single (OR 3.38; 95%CI: 2.26-5.05) and low household income (OR 2.18; 95%CI: 1.44-3.30) were found to be associated with cognitive frailty. CONCLUSION Cardiovascular-risk specific risk factors and sociodemographic factors were associated with risk of cognitive frailty, a prodromal stage of dementia. Early identification and management of cardiovascular risk factors, particularly among specific group of the population might mitigate the risk of cognitive frailty, hence preventing dementia.
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Affiliation(s)
- Azianah Mohamad Ibrahim
- Centre for Healthy Ageing and Wellness, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Wilayah Persekutuan Kuala Lumpur 50300, Malaysia
| | - Devinder Kaur Ajit Singh
- Centre for Healthy Ageing and Wellness, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Wilayah Persekutuan Kuala Lumpur 50300, Malaysia
| | - Arimi Fitri Mat Ludin
- Centre for Healthy Ageing and Wellness, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Wilayah Persekutuan Kuala Lumpur 50300, Malaysia
| | | | - Nurul Fatin Malek Rivan
- Centre for Healthy Ageing and Wellness, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Wilayah Persekutuan Kuala Lumpur 50300, Malaysia
| | - Suzana Shahar
- Centre for Healthy Ageing and Wellness, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Wilayah Persekutuan Kuala Lumpur 50300, Malaysia
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Tong B, Ba Y, Li Z, Yang C, Su K, Qi H, Zhang D, Liu X, Wu Y, Chen Y, Ling J, Zhang J, Yin X, Yu P. Targeting dysregulated lipid metabolism for the treatment of Alzheimer's disease and Parkinson's disease: Current advancements and future prospects. Neurobiol Dis 2024; 196:106505. [PMID: 38642715 DOI: 10.1016/j.nbd.2024.106505] [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: 01/28/2024] [Revised: 03/02/2024] [Accepted: 04/14/2024] [Indexed: 04/22/2024] Open
Abstract
Alzheimer's and Parkinson's diseases are two of the most frequent neurological diseases. The clinical features of AD are memory decline and cognitive dysfunction, while PD mainly manifests as motor dysfunction such as limb tremors, muscle rigidity abnormalities, and slow gait. Abnormalities in cholesterol, sphingolipid, and glycerophospholipid metabolism have been demonstrated to directly exacerbate the progression of AD by stimulating Aβ deposition and tau protein tangles. Indirectly, abnormal lipids can increase the burden on brain vasculature, induce insulin resistance, and affect the structure of neuronal cell membranes. Abnormal lipid metabolism leads to PD through inducing accumulation of α-syn, dysfunction of mitochondria and endoplasmic reticulum, and ferroptosis. Great progress has been made in targeting lipid metabolism abnormalities for the treatment of AD and PD in recent years, like metformin, insulin, peroxisome proliferator-activated receptors (PPARs) agonists, and monoclonal antibodies targeting apolipoprotein E (ApoE). This review comprehensively summarizes the involvement of dysregulated lipid metabolism in the pathogenesis of AD and PD, the application of Lipid Monitoring, and emerging lipid regulatory drug targets. A better understanding of the lipidological bases of AD and PD may pave the way for developing effective prevention and treatment methods for neurodegenerative disorders.
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Affiliation(s)
- Bin Tong
- Department of Metabolism and Endocrinology, The Second Affiliated Hospital of Nanchang University, Jiangxi, Nanchang 330006, China; School of Ophthalmology and Optometry of Nanchang University, Jiangxi, Nanchang 330006, China
| | - Yaoqi Ba
- Department of Metabolism and Endocrinology, The Second Affiliated Hospital of Nanchang University, Jiangxi, Nanchang 330006, China; School of Ophthalmology and Optometry of Nanchang University, Jiangxi, Nanchang 330006, China
| | - Zhengyang Li
- Department of Metabolism and Endocrinology, The Second Affiliated Hospital of Nanchang University, Jiangxi, Nanchang 330006, China; The First Clinical Medical College of Nanchang University, Jiangxi, Nanchang 330006, China
| | - Caidi Yang
- The First Clinical Medical College of Nanchang University, Jiangxi, Nanchang 330006, China
| | - Kangtai Su
- The First Clinical Medical College of Nanchang University, Jiangxi, Nanchang 330006, China
| | - Haodong Qi
- The First Clinical Medical College of Nanchang University, Jiangxi, Nanchang 330006, China
| | - Deju Zhang
- Department of Neurology, Affiliated Hospital of Jiujiang University, Jiujiang, China; Center for Clinical Precision Medicine, Jiujiang University, Jiujiang, China; Food and Nutritional Sciences, School of Biological Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Xiao Liu
- Department of Neurology, Affiliated Hospital of Jiujiang University, Jiujiang, China; Department of Cardiology, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Yuting Wu
- Department of Metabolism and Endocrinology, The Second Affiliated Hospital of Nanchang University, Jiangxi, Nanchang 330006, China
| | - Yixuan Chen
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Jiangxi, Nanchang 330006, China
| | - Jitao Ling
- Department of Metabolism and Endocrinology, The Second Affiliated Hospital of Nanchang University, Jiangxi, Nanchang 330006, China
| | - Jing Zhang
- Department of Neurology, Affiliated Hospital of Jiujiang University, Jiujiang, China; Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Jiangxi, Nanchang 330006, China.
| | - Xiaoping Yin
- Department of Neurology, Affiliated Hospital of Jiujiang University, Jiujiang, China; Center for Clinical Precision Medicine, Jiujiang University, Jiujiang, China.
| | - Peng Yu
- Department of Metabolism and Endocrinology, The Second Affiliated Hospital of Nanchang University, Jiangxi, Nanchang 330006, China.
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Pszczołowska M, Walczak K, Miśków W, Mroziak M, Chojdak-Łukasiewicz J, Leszek J. Mitochondrial disorders leading to Alzheimer's disease-perspectives of diagnosis and treatment. GeroScience 2024; 46:2977-2988. [PMID: 38457008 PMCID: PMC11009177 DOI: 10.1007/s11357-024-01118-y] [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: 01/15/2024] [Accepted: 02/29/2024] [Indexed: 03/09/2024] Open
Abstract
Alzheimer's disease (AD) is a neurodegenerative disorder and the most common cause of dementia globally. The pathogenesis of AD remains still unclear. The three main features of AD are extracellular deposits of amyloid beta (Aβ) plaque, accumulation of abnormal formation hyper-phosphorylated tau protein, and neuronal loss. Mitochondrial impairment plays an important role in the pathogenesis of AD. There are problems with decreased activity of multiple complexes, disturbed mitochondrial fusion, and fission or formation of reactive oxygen species (ROS). Moreover, mitochondrial transport is impaired in AD. Mouse models in many research show disruptions in anterograde and retrograde transport. Both mitochondrial transportation and network impairment have a huge impact on synapse loss and, as a result, cognitive impairment. One of the very serious problems in AD is also disruption of insulin signaling which impairs mitochondrial Aβ removal.Discovering precise mechanisms leading to AD enables us to find new treatment possibilities. Recent studies indicate the positive influence of metformin or antioxidants such as MitoQ, SS-31, SkQ, MitoApo, MitoTEMPO, and MitoVitE on mitochondrial functioning and hence prevent cognitive decline. Impairments in mitochondrial fission may be treated with mitochondrial division inhibitor-1 or ceramide.
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Affiliation(s)
| | - Kamil Walczak
- Faculty of Medicine, Wrocław Medical University, Wrocław, Poland
| | - Weronika Miśków
- Faculty of Medicine, Wrocław Medical University, Wrocław, Poland
| | | | | | - Jerzy Leszek
- Clinic of Psychiatry, Department of Psychiatry, Medical Department, Wrocław Medical University, Wrocław, Poland
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23
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Wang Q, Tripodi N, Valiukas Z, Bell SM, Majid A, de Courten B, Apostolopoulos V, Feehan J. The protective role of carnosine against type 2 diabetes-induced cognitive impairment. Food Sci Nutr 2024; 12:3819-3833. [PMID: 38873448 PMCID: PMC11167184 DOI: 10.1002/fsn3.4077] [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: 11/02/2023] [Revised: 02/11/2024] [Accepted: 02/23/2024] [Indexed: 06/15/2024] Open
Abstract
The morbidity and mortality associated with type 2 diabetes mellitus (T2DM) have grown exponentially over the last 30 years. Together with its associated complications, the mortality rates have increased. One important complication in those living with T2DM is the acceleration of age-related cognitive decline. T2DM-induced cognitive impairment seriously affects memory, executive function, and quality of life. However, there is a lack of effective treatment for both diabetes and cognitive decline. Thus, finding novel treatments which are cheap, effective in both diabetes and cognitive impairment, are easily accessible, are needed to reduce impact on patients with diabetes and health-care systems. Carnosine, a histidine containing dipeptide, plays a protective role in cognitive diseases due to its antioxidant, anti-inflammation, and anti-glycation properties, all of which may slow the development of neurodegenerative diseases and ischemic injury. Furthermore, carnosine is also involved in regulating glucose and insulin in diabetes. Herein, we discuss the neuroprotective role of carnosine and its mechanisms in T2DM-induced cognitive impairment, which may provide a theoretical basis and evidence base to evaluate whether carnosine has therapeutic effects in alleviating cognitive dysfunction in T2DM patients.
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Affiliation(s)
- Qian Wang
- Institute for Health and Sport, Victoria UniversityMelbourneAustralia
| | - Nicholas Tripodi
- Institute for Health and Sport, Victoria UniversityMelbourneAustralia
| | - Zachary Valiukas
- Institute for Health and Sport, Victoria UniversityMelbourneAustralia
| | - Simon M. Bell
- Sheffield Institute for Translational Neuroscience, Sheffield UniversitySheffieldUK
| | - Arshad Majid
- Sheffield Institute for Translational Neuroscience, Sheffield UniversitySheffieldUK
| | - Barbora de Courten
- STEM college, RMIT UniversityMelbourneVictoriaAustralia
- School of Clinical SciencesMonash UniversityMelbourneVictoriaAustralia
| | - Vasso Apostolopoulos
- Institute for Health and Sport, Victoria UniversityMelbourneAustralia
- Australian Institute for Musculoskeletal Sciences, Immunology Program, Western HealthThe University of Melbourne and Victoria UniversityMelbourneVictoriaAustralia
| | - Jack Feehan
- Institute for Health and Sport, Victoria UniversityMelbourneAustralia
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Cai M, Wan J, Cai K, Li S, Du X, Song H, Sun W, Hu J. The mitochondrial quality control system: a new target for exercise therapeutic intervention in the treatment of brain insulin resistance-induced neurodegeneration in obesity. Int J Obes (Lond) 2024; 48:749-763. [PMID: 38379083 DOI: 10.1038/s41366-024-01490-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 01/30/2024] [Accepted: 02/01/2024] [Indexed: 02/22/2024]
Abstract
Obesity is a major global health concern because of its strong association with metabolic and neurodegenerative diseases such as diabetes, dementia, and Alzheimer's disease. Unfortunately, brain insulin resistance in obesity is likely to lead to neuroplasticity deficits. Since the evidence shows that insulin resistance in brain regions abundant in insulin receptors significantly alters mitochondrial efficiency and function, strategies targeting the mitochondrial quality control system may be of therapeutic and practical value in obesity-induced cognitive decline. Exercise is considered as a powerful stimulant of mitochondria that improves insulin sensitivity and enhances neuroplasticity. It has great potential as a non-pharmacological intervention against the onset and progression of obesity associated neurodegeneration. Here, we integrate the current knowledge of the mechanisms of neurodegenration in obesity and focus on brain insulin resistance to explain the relationship between the impairment of neuronal plasticity and mitochondrial dysfunction. This knowledge was synthesised to explore the exercise paradigm as a feasible intervention for obese neurodegenration in terms of improving brain insulin signals and regulating the mitochondrial quality control system.
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Affiliation(s)
- Ming Cai
- Jinshan District Central Hospital affiliated to Shanghai University of Medicine & Health Sciences, Shanghai, 201599, China
| | - Jian Wan
- Department of Emergency and Critical Care Medicine, Shanghai Pudong New Area People's Hospital, Shanghai, 201299, China
| | - Keren Cai
- College of Rehabilitation Sciences, Shanghai University of Medicine and Health Sciences, Shanghai, 201318, China
| | - Shuyao Li
- College of Rehabilitation Sciences, Shanghai University of Medicine and Health Sciences, Shanghai, 201318, China
| | - Xinlin Du
- College of Rehabilitation Sciences, Shanghai University of Medicine and Health Sciences, Shanghai, 201318, China
| | - Haihan Song
- Central Lab, Shanghai Key Laboratory of Pathogenic Fungi Medical Testing, Shanghai Pudong New Area People's Hospital, Shanghai, 201299, China
| | - Wanju Sun
- Central Lab, Shanghai Key Laboratory of Pathogenic Fungi Medical Testing, Shanghai Pudong New Area People's Hospital, Shanghai, 201299, China.
| | - Jingyun Hu
- Central Lab, Shanghai Key Laboratory of Pathogenic Fungi Medical Testing, Shanghai Pudong New Area People's Hospital, Shanghai, 201299, China.
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Garrido-Dzib AG, Palacios-González B, Ávila-Escalante ML, Bravo-Armenta E, Avila-Nava A, Gutiérrez-Solis AL. Dietary patterns in mild cognitive impairment and dementia in older adults from Yucatan, Mexico. Front Nutr 2024; 11:1335979. [PMID: 39166127 PMCID: PMC11334730 DOI: 10.3389/fnut.2024.1335979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 04/23/2024] [Indexed: 08/22/2024] Open
Abstract
Background Some dietary patterns and dietary components have an important role in preventing and helping to improve patients' quality of life of individuals with Mild Cognitive Impairment (MCI) and dementia. In Mexico, it is unknown what the dietary patterns are among older adults with MCI and dementia. We aimed to identify the dietary patterns of older adults with MCI and dementia living in Yucatan, Mexico. Methods A cross-sectional study was carried out among 39 patients as controls and 34 individuals as cases (MCI and dementia). A food frequency questionnaire collected diet information, anthropometric and clinical parameters, and lifestyle characteristics. The dietary patterns were evaluated through Partial Least-Squares Discriminant Analysis (PLS-DA). Results The food groups that showed discrimination between groups and were classified into the dietary patterns of MCI and dementia individuals were "pastries and cookies," "soups," and "legumes." The dietary pattern of older adults without cognitive impairment was characterized by "nuts and seeds," "candies," "vegetables," "coffee and tea," and "water." The consumption of "pastries and cookies" showed an increasing correlation with serum insulin levels (r = 0.36, p = 0.01), and "soups" showed an inverse correlation with total cholesterol levels (r = -0.36, p = 0.02) in patients with MCI and dementia. In controls, there is a positive correlation between the consumption of "nuts and seeds" (r = 0.333, p = 0.01) and "vegetables" (r = 0.32, p = 0.02) with levels of urea; "coffee and tea" showed a positive association with levels of insulin (r = 0.378, p = 0.05). Conclusion The dietary pattern of individuals with MCI and dementia has some nutritional deficiencies. Including an adequate intake of vegetables, fruits, and protein could improve the quality of life of subjects living with these conditions in Yucatan, Mexico.
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Affiliation(s)
- Angel Gabriel Garrido-Dzib
- Hospital Regional de Alta Especialidad de la Península de Yucatán, IMSS-Bienestar, Mérida, Yucatán, Mexico
- Facultad de Medicina, Universidad Autónoma de Yucatán, Mérida, Yucatán, Mexico
| | - Berenice Palacios-González
- Laboratorio de Envejecimiento Saludable del Instituto Nacional de Medicina Genómica (INMEGEN), Centro de Investigación sobre el Envejecimiento, Ciudad de México, Mexico
| | | | - Erandi Bravo-Armenta
- Hospital Regional de Alta Especialidad de la Península de Yucatán, IMSS-Bienestar, Mérida, Yucatán, Mexico
| | - Azalia Avila-Nava
- Hospital Regional de Alta Especialidad de la Península de Yucatán, IMSS-Bienestar, Mérida, Yucatán, Mexico
| | - Ana Ligia Gutiérrez-Solis
- Hospital Regional de Alta Especialidad de la Península de Yucatán, IMSS-Bienestar, Mérida, Yucatán, Mexico
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26
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Tipa RO, Balan DG, Georgescu MT, Ignat LA, Vacaroiu IA, Georgescu DE, Raducu L, Mihai DA, Chiperi LV, Balcangiu-Stroescu AE. A Systematic Review of Semaglutide's Influence on Cognitive Function in Preclinical Animal Models and Cell-Line Studies. Int J Mol Sci 2024; 25:4972. [PMID: 38732190 PMCID: PMC11084700 DOI: 10.3390/ijms25094972] [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: 03/15/2024] [Revised: 04/17/2024] [Accepted: 04/24/2024] [Indexed: 05/13/2024] Open
Abstract
Since we aim to test new options to find medication for cognitive disorders, we have begun to assess the effect of semaglutide and to conduct a review gathering studies that have attempted this purpose. This systematic review focuses on the cognitive effects of semaglutide, a glucagon-like peptide 1 receptor agonist (GLP-1 RA), in the context of neurological and cognitive impairment. Semaglutide, a synthetic GLP-1 analog, showcased neuroprotective effects beyond metabolic regulation. It mitigated apoptosis and improved cognitive dysfunction in cerebrovascular disease, suggesting broader implications for neurological well-being. Also, studies highlighted GLP-1 RAs' positive impact on olfactory function in obese individuals with type 2 diabetes, on neurodegenerative disorders, multiple sclerosis, and endotoxemia. In order to analyze current studies that assess the impact of semaglutide on cognitive function, a literature search was conducted up to February 2024 on two online databases, MEDLINE (via PubMed) and Web of Science Core Collection, as well as various websites. Fifteen studies on mice populations and two studies on cell lines were included, analyzed, and assessed with bias-specific tools. The neuroprotective and anti-apoptotic properties of GLP-1 and its analogs were emphasized, with animal models and cell line studies demonstrating enhanced cognitive function. While promising, limitations include fewer studies, highlighting the need for extensive research, particularly in the human population. Even though this medication seems promising, there are significant limitations, one of which is the lack of studies on human subjects. Therefore, this review aims to gather current evidence.
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Affiliation(s)
- Raluca Oana Tipa
- Department of Psychiatry, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania
- “Prof. Dr. Alexandru Obregia” Clinical Psychiatric Hospital, 041914 Bucharest, Romania
| | - Daniela-Gabriela Balan
- Discipline of Physiology, Faculty of Dentistry, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania (A.-E.B.-S.)
| | - Mihai-Teodor Georgescu
- Discipline of Oncology, Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania
| | - Luciana Angela Ignat
- “Prof. Dr. Alexandru Obregia” Clinical Psychiatric Hospital, 041914 Bucharest, Romania
- Doctoral School, “George Emil Palade” University of Medicine, Pharmacy, Science and Technology of Targu Mures, 540142 Targu Mures, Romania
| | - Ileana Adela Vacaroiu
- Discipline of Nephrology, Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania
| | - Dragos Eugen Georgescu
- Discipline of General Surgery, Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania;
| | - Laura Raducu
- Discipline of Plastic and Reconstructive Surgery, Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania
| | - Doina Andrada Mihai
- Discipline of Diabetes, Nutrition, and Metabolic Diseases, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania
| | - Liviu-Vasile Chiperi
- Discipline of Physiology, Faculty of Dentistry, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania (A.-E.B.-S.)
| | - Andra-Elena Balcangiu-Stroescu
- Discipline of Physiology, Faculty of Dentistry, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania (A.-E.B.-S.)
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He Y, Wang Y, Li X, Qi Y, Qu Z, Hu Y. Lycium Barbarum Polysaccharides Improves Cognitive Functions in ICV-STZ-Induced Alzheimer's Disease Mice Model by Improving the Synaptic Structural Plasticity and Regulating IRS1/PI3K/AKT Signaling Pathway. Neuromolecular Med 2024; 26:15. [PMID: 38653878 DOI: 10.1007/s12017-024-08784-3] [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: 02/09/2024] [Accepted: 03/22/2024] [Indexed: 04/25/2024]
Abstract
Lycium barbarum polysaccharide (LBP) have a certain curative effect on hypoglycemic and neuroprotective effects, but the specific mechanism is unclear and needs to be further explored. This study aimed to clarify the mechanisms of LBP in the treatment of ICV-STZ mice model of AD from the perspectives of insulin resistance, IRS1/PI3K/AKT signaling pathway, and synaptic protein expression. We used male C57BL/6J mice injected with STZ (3 mg/kg) in the lateral ventricle as an AD model. After treatment with LBP, the learning and memory abilities of ICV-STZ mice were enhanced, and the pathological changes in brain tissue were alleviated. LBP can regulate the expression of proteins related to the IRS1/PI3K/AKT signaling pathway and thereby reducing Aβ deposition and tau protein phosphorylation in the brain of ICV-STZ mice. In addition, LBP also can up-regulate the expression of synaptic proteins. The results indicated that LBP played a neuroprotective role by regulating the IRS1/PI3K/AKT pathway, inhibiting tau protein hyperphosphorylation and improving the expression levels of synapse-related proteins.
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Affiliation(s)
- Yingxi He
- Department of Phamacy, Shihezi University, Shihezi, China
- Key Laboratory of Xin Jiang Phytomedicine Resources Utilization, Ministry of Education, Shihezi, 832000, Xinjiang, China
| | - Yanyou Wang
- Department of Phamacy, Shihezi University, Shihezi, China
- Key Laboratory of Xin Jiang Phytomedicine Resources Utilization, Ministry of Education, Shihezi, 832000, Xinjiang, China
| | - Xia Li
- Department of Phamacy, Shihezi University, Shihezi, China
- Key Laboratory of Xin Jiang Phytomedicine Resources Utilization, Ministry of Education, Shihezi, 832000, Xinjiang, China
| | - Yanqiang Qi
- Department of Phamacy, Shihezi University, Shihezi, China
- Key Laboratory of Xin Jiang Phytomedicine Resources Utilization, Ministry of Education, Shihezi, 832000, Xinjiang, China
| | - Zuwei Qu
- Department of Phamacy, Shihezi University, Shihezi, China
- Key Laboratory of Xin Jiang Phytomedicine Resources Utilization, Ministry of Education, Shihezi, 832000, Xinjiang, China
| | - Yanli Hu
- Department of Phamacy, Shihezi University, Shihezi, China.
- Key Laboratory of Xin Jiang Phytomedicine Resources Utilization, Ministry of Education, Shihezi, 832000, Xinjiang, China.
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LeVine SM. Exploring Potential Mechanisms Accounting for Iron Accumulation in the Central Nervous System of Patients with Alzheimer's Disease. Cells 2024; 13:689. [PMID: 38667304 PMCID: PMC11049304 DOI: 10.3390/cells13080689] [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: 04/04/2024] [Revised: 04/12/2024] [Accepted: 04/14/2024] [Indexed: 04/28/2024] Open
Abstract
Elevated levels of iron occur in both cortical and subcortical regions of the CNS in patients with Alzheimer's disease. This accumulation is present early in the disease process as well as in more advanced stages. The factors potentially accounting for this increase are numerous, including: (1) Cells increase their uptake of iron and reduce their export of iron, as iron becomes sequestered (trapped within the lysosome, bound to amyloid β or tau, etc.); (2) metabolic disturbances, such as insulin resistance and mitochondrial dysfunction, disrupt cellular iron homeostasis; (3) inflammation, glutamate excitotoxicity, or other pathological disturbances (loss of neuronal interconnections, soluble amyloid β, etc.) trigger cells to acquire iron; and (4) following neurodegeneration, iron becomes trapped within microglia. Some of these mechanisms are also present in other neurological disorders and can also begin early in the disease course, indicating that iron accumulation is a relatively common event in neurological conditions. In response to pathogenic processes, the directed cellular efforts that contribute to iron buildup reflect the importance of correcting a functional iron deficiency to support essential biochemical processes. In other words, cells prioritize correcting an insufficiency of available iron while tolerating deposited iron. An analysis of the mechanisms accounting for iron accumulation in Alzheimer's disease, and in other relevant neurological conditions, is put forward.
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Affiliation(s)
- Steven M LeVine
- Department of Cell Biology and Physiology, University of Kansas Medical Center, 3901 Rainbow Blvd., Mail Stop 3043, Kansas City, KS 66160, USA
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29
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Zhai W, Zhao M, Wei C, Zhang G, Qi Y, Zhao A, Sun L. Biomarker profiling to determine clinical impact of microRNAs in cognitive disorders. Sci Rep 2024; 14:8270. [PMID: 38594359 PMCID: PMC11004146 DOI: 10.1038/s41598-024-58882-2] [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: 11/11/2023] [Accepted: 04/04/2024] [Indexed: 04/11/2024] Open
Abstract
Alzheimer's disease (AD) and post-stroke cognitive impairment (PSCI) are the leading causes of progressive dementia related to neurodegenerative and cerebrovascular injuries in elderly populations. Despite decades of research, patients with these conditions still lack minimally invasive, low-cost, and effective diagnostic and treatment methods. MicroRNAs (miRNAs) play a vital role in AD and PSCI pathology. As they are easily obtained from patients, miRNAs are promising candidates for the diagnosis and treatment of these two disorders. In this study, we performed complete sequencing analysis of miRNAs from 24 participants, split evenly into the PSCI, post-stroke non-cognitive impairment (PSNCI), AD, and normal control (NC) groups. To screen for differentially expressed miRNAs (DE-miRNAs) in patients, we predicted their target genes using bioinformatics analysis. Our analyses identified miRNAs that can distinguish between the investigated disorders; several of them were novel and never previously reported. Their target genes play key roles in multiple signaling pathways that have potential to be modified as a clinical treatment. In conclusion, our study demonstrates the potential of miRNAs and their key target genes in disease management. Further in-depth investigations with larger sample sizes will contribute to the development of precise treatments for AD and PSCI.
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Affiliation(s)
- Weijie Zhai
- Department of Neurology and Neuroscience Center, The First Hospital of Jilin University, Jilin University, Xinmin Street 1#, Changchun, 130021, China
- Department of Neurology, Cognitive Center, The First Hospital of Jilin University, Jilin University, Changchun, China
| | - Meng Zhao
- Department of Neurology and Neuroscience Center, The First Hospital of Jilin University, Jilin University, Xinmin Street 1#, Changchun, 130021, China
- Department of Neurology, Cognitive Center, The First Hospital of Jilin University, Jilin University, Changchun, China
| | - Chunxiao Wei
- Department of Neurology and Neuroscience Center, The First Hospital of Jilin University, Jilin University, Xinmin Street 1#, Changchun, 130021, China
- Department of Neurology, Cognitive Center, The First Hospital of Jilin University, Jilin University, Changchun, China
| | - Guimei Zhang
- Department of Neurology and Neuroscience Center, The First Hospital of Jilin University, Jilin University, Xinmin Street 1#, Changchun, 130021, China
- Department of Neurology, Cognitive Center, The First Hospital of Jilin University, Jilin University, Changchun, China
| | - Yiming Qi
- Department of Neurology and Neuroscience Center, The First Hospital of Jilin University, Jilin University, Xinmin Street 1#, Changchun, 130021, China
- Department of Neurology, Cognitive Center, The First Hospital of Jilin University, Jilin University, Changchun, China
| | - Anguo Zhao
- Department of Urology, Dushu Lake Hospital Affiliated to Soochow University, Medical Center of Soochow University, Suzhou Dushu Lake Hospital, Suzhou, 215000, China
| | - Li Sun
- Department of Neurology and Neuroscience Center, The First Hospital of Jilin University, Jilin University, Xinmin Street 1#, Changchun, 130021, China.
- Department of Neurology, Cognitive Center, The First Hospital of Jilin University, Jilin University, Changchun, China.
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Zhang J, Kibret BG, Vatner DE, Vatner SF. The role of brown adipose tissue in mediating healthful longevity. THE JOURNAL OF CARDIOVASCULAR AGING 2024; 4:17. [PMID: 39119146 PMCID: PMC11309368 DOI: 10.20517/jca.2024.01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 08/10/2024]
Abstract
There are two major subtypes of adipose tissue, i.e., white adipose tissue (WAT) and brown adipose tissue (BAT). It has been known for a long time that WAT mediates obesity and impairs healthful longevity. More recently, interest has focused on BAT, which, unlike WAT, actually augments healthful aging. The goal of this review is to examine the role of BAT in mediating healthful longevity. A major role for BAT and its related beige adipose tissue is thermogenesis, as a mechanism to maintain body temperature by producing heat through uncoupling protein 1 (UCP1) or through UCP1-independent thermogenic pathways. Our hypothesis is that healthful longevity is, in part, mediated by BAT. BAT protects against the major causes of impaired healthful longevity, i.e., obesity, diabetes, cardiovascular disorders, cancer, Alzheimer's disease, reduced exercise tolerance, and impaired blood flow. Several genetically engineered mouse models have shown that BAT enhances healthful aging and that their BAT is more potent than wild-type (WT) BAT. For example, when BAT, which increases longevity and exercise performance in mice with disruption of the regulator of G protein signaling 14 (RGS14), is transplanted to WT mice, their exercise capacity is enhanced at 3 days after BAT transplantation, whereas BAT transplantation from WT to WT mice also resulted in increased exercise performance, but only at 8 weeks after transplantation. In view of the ability of BAT to mediate healthful longevity, it is likely that a pharmaceutical analog of BAT will become a novel therapeutic modality.
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Affiliation(s)
- Jie Zhang
- Department of Cell Biology and Molecular Medicine, Rutgers, New Jersey Medical School, Newark, NJ 07103, USA
| | - Berhanu Geresu Kibret
- Department of Cell Biology and Molecular Medicine, Rutgers, New Jersey Medical School, Newark, NJ 07103, USA
| | - Dorothy E. Vatner
- Department of Medicine, Rutgers, New Jersey Medical School, Newark, NJ 07103, USA
| | - Stephen F. Vatner
- Department of Cell Biology and Molecular Medicine, Rutgers, New Jersey Medical School, Newark, NJ 07103, USA
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Ma Y, Wei S, Dang L, Gao L, Shang S, Hu N, Peng W, Zhao Y, Yuan Y, Zhou R, Wang Y, Gao F, Wang J, Qu Q. Association between the triglyceride-glucose index and cognitive impairment in China: a community population-based cross-sectional study. Nutr Neurosci 2024; 27:342-352. [PMID: 36976719 DOI: 10.1080/1028415x.2023.2193765] [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: 03/29/2023]
Abstract
INTRODUCTION Insulin resistance (IR) is a feature of metabolic syndrome and plays an important role in cognitive impairment (CI). The triglyceride-glucose (TyG) index is a convenient and cost-effective surrogate for assessing IR. This study aimed to assess the association between the TyG index and CI. METHODS This community population-based cross-sectional study used a cluster-sampling methodology. All participants underwent the education-based Mini-Mental State Examination (MMSE), and those with CI were identified using standard thresholds. The fasting blood triglyceride and glucose levels were measured in the morning, and the TyG index was calculated as ln (½ fasting triglyceride level [mg/dL] × fasting blood glucose level [mg/dL]). Multivariable logistic regression and subgroup analysis were used to assess the relationship between the TyG index and CI. RESULTS This study included 1484 subjects, of which 93 (6.27%) met the CI criteria. Multivariable logistic regression showed that CI incidence increased by 64% per unit increase in the TyG index (odds ratio [OR] = 1.64, 95% confidence interval [CI]: 1.02-2.63, p = 0.042). CI risk was 2.64-fold higher in the highest TyG index quartile compared to the lowest TyG index quartile (OR = 2.64, 95% CI: 1.19-5.85, p = 0.016). Finally, interaction analysis showed that sex, age, hypertension, and diabetes did not significantly affect the association between the TyG index and CI. CONCLUSION The present study suggested that an elevated TyG index was associated with a higher CI risk. Subjects with a higher TyG index should manage and treat at an early stage to alleviate the cognitive decline.
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Affiliation(s)
- Yimeng Ma
- Department of Neurology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Shan Wei
- Department of Neurology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Liangjun Dang
- Department of Neurology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Ling Gao
- Department of Neurology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Suhang Shang
- Department of Neurology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Ningwei Hu
- Department of Neurology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Wei Peng
- Department of Neurology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Yi Zhao
- Department of Neurology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Ye Yuan
- Department of Neurology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Rong Zhou
- Department of Neurology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Yanyu Wang
- Department of Neurology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Fan Gao
- Clinical Research Center, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Jin Wang
- Department of Neurology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Qiumin Qu
- Department of Neurology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China
- Center for Brain Science, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China
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Mishra S, Stany B, Das A, Kanagavel D, Vijayan M. A Comprehensive Review of Membrane Transporters and MicroRNA Regulation in Alzheimer's Disease. Mol Neurobiol 2024:10.1007/s12035-024-04135-2. [PMID: 38558361 DOI: 10.1007/s12035-024-04135-2] [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: 11/22/2023] [Accepted: 03/15/2024] [Indexed: 04/04/2024]
Abstract
Alzheimer's disease (AD) is a distressing neurodegenerative condition characterized by the accumulation of amyloid-beta (Aβ) plaques and tau tangles within the brain. The interconnectedness between membrane transporters (SLCs) and microRNAs (miRNAs) in AD pathogenesis has gained increasing attention. This review explores the localization, substrates, and functions of SLC transporters in the brain, emphasizing the roles of transporters for glutamate, glucose, nucleosides, and other essential compounds. The examination delves into the significance of SLCs in AD, their potential for drug development, and the intricate realm of miRNAs, encompassing their transcription, processing, functions, and regulation. MiRNAs have emerged as significant players in AD, including those associated with mitochondria and synapses. Furthermore, this review discusses the intriguing nexus of miRNAs targeting SLC transporters and their potential as therapeutic targets in AD. Finally, the review underscores the interaction between SLC transporters and miRNA regulation within the context of Alzheimer's disease, underscoring the need for further research in this area. This comprehensive review aims to shed light on the complex mechanisms underlying the causation of AD and provides insights into potential therapeutic approaches.
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Affiliation(s)
- Shatakshi Mishra
- School of Biosciences and Technology, Department of Biotechnology, VIT University, Vellore, Tamil Nadu, 632014, India
| | - B Stany
- School of Biosciences and Technology, Department of Biotechnology, VIT University, Vellore, Tamil Nadu, 632014, India
| | - Anushka Das
- School of Biosciences and Technology, Department of Biotechnology, VIT University, Vellore, Tamil Nadu, 632014, India
| | - Deepankumar Kanagavel
- School of Biosciences and Technology, Department of Biotechnology, VIT University, Vellore, Tamil Nadu, 632014, India.
| | - Murali Vijayan
- Department of Internal Medicine, Texas Tech University Health Sciences Center, 3601 4th Street, Lubbock, TX, 79430, USA.
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Pinheiro FI, Araújo-Filho I, do Rego ACM, de Azevedo EP, Cobucci RN, Guzen FP. Hepatopancreatic metabolic disorders and their implications in the development of Alzheimer's disease and vascular dementia. Ageing Res Rev 2024; 96:102250. [PMID: 38417711 DOI: 10.1016/j.arr.2024.102250] [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: 12/05/2023] [Revised: 02/07/2024] [Accepted: 02/22/2024] [Indexed: 03/01/2024]
Abstract
Dementia has been faced with significant public health challenges and economic burdens that urges the need to develop safe and effective interventions. In recent years, an increasing number of studies have focused on the relationship between dementia and liver and pancreatic metabolic disorders that result in diseases such as diabetes, obesity, hypertension and dyslipidemia. Previous reports have shown that there is a plausible correlation between pathologies caused by hepatopancreatic dysfunctions and dementia. Glucose, insulin and IGF-1 metabolized in the liver and pancreas probably have an important influence on the pathophysiology of the most common dementias: Alzheimer's and vascular dementia. This current review highlights recent studies aimed at identifying convergent mechanisms, such as insulin resistance and other diseases, linked to altered hepatic and pancreatic metabolism, which are capable of causing brain changes that ultimately lead to dementia.
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Affiliation(s)
- Francisco I Pinheiro
- Postgraduate Program in Biotechnology, Health School, Potiguar University (UnP), Natal, RN, Brazil; Department of Surgical, Federal University of Rio Grande do Norte, Natal 59010-180, Brazil; Institute of Education, Research and Innovation of the Liga Norte Rio-Grandense Against Cancer
| | - Irami Araújo-Filho
- Postgraduate Program in Biotechnology, Health School, Potiguar University (UnP), Natal, RN, Brazil; Department of Surgical, Federal University of Rio Grande do Norte, Natal 59010-180, Brazil; Postgraduate Program in Health Sciences, Federal University of Rio Grande do Norte (UFRN), Natal, RN, Brazil
| | - Amália C M do Rego
- Postgraduate Program in Biotechnology, Health School, Potiguar University (UnP), Natal, RN, Brazil; Institute of Education, Research and Innovation of the Liga Norte Rio-Grandense Against Cancer
| | - Eduardo P de Azevedo
- Postgraduate Program in Biotechnology, Health School, Potiguar University (UnP), Natal, RN, Brazil
| | - Ricardo N Cobucci
- Postgraduate Program in Biotechnology, Health School, Potiguar University (UnP), Natal, RN, Brazil; Postgraduate Program in Health Sciences, Federal University of Rio Grande do Norte (UFRN), Natal, RN, Brazil; Postgraduate Program in Science Applied to Women`s Health, Medical School, Federal University of Rio Grande do Norte (UFRN), Natal, RN, Brazil
| | - Fausto P Guzen
- Postgraduate Program in Biotechnology, Health School, Potiguar University (UnP), Natal, RN, Brazil; Postgraduate Program in Health and Society, Department of Biomedical Sciences, Faculty of Health Sciences, State University of Rio Grande do Norte (UERN), Mossoró, Brazil; Postgraduate Program in Physiological Sciences, Department of Biomedical Sciences, Faculty of Health Sciences, State University of Rio Grande do Norte (UERN), Mossoró, Brazil.
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Afsar A, Zhang L. Putative Molecular Mechanisms Underpinning the Inverse Roles of Mitochondrial Respiration and Heme Function in Lung Cancer and Alzheimer's Disease. BIOLOGY 2024; 13:185. [PMID: 38534454 DOI: 10.3390/biology13030185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 03/01/2024] [Accepted: 03/08/2024] [Indexed: 03/28/2024]
Abstract
Mitochondria are the powerhouse of the cell. Mitochondria serve as the major source of oxidative stress. Impaired mitochondria produce less adenosine triphosphate (ATP) but generate more reactive oxygen species (ROS), which could be a major factor in the oxidative imbalance observed in Alzheimer's disease (AD). Well-balanced mitochondrial respiration is important for the proper functioning of cells and human health. Indeed, recent research has shown that elevated mitochondrial respiration underlies the development and therapy resistance of many types of cancer, whereas diminished mitochondrial respiration is linked to the pathogenesis of AD. Mitochondria govern several activities that are known to be changed in lung cancer, the largest cause of cancer-related mortality worldwide. Because of the significant dependence of lung cancer cells on mitochondrial respiration, numerous studies demonstrated that blocking mitochondrial activity is a potent strategy to treat lung cancer. Heme is a central factor in mitochondrial respiration/oxidative phosphorylation (OXPHOS), and its association with cancer is the subject of increased research in recent years. In neural cells, heme is a key component in mitochondrial respiration and the production of ATP. Here, we review the role of impaired heme metabolism in the etiology of AD. We discuss the numerous mitochondrial effects that may contribute to AD and cancer. In addition to emphasizing the significance of heme in the development of both AD and cancer, this review also identifies some possible biological connections between the development of the two diseases. This review explores shared biological mechanisms (Pin1, Wnt, and p53 signaling) in cancer and AD. In cancer, these mechanisms drive cell proliferation and tumorigenic functions, while in AD, they lead to cell death. Understanding these mechanisms may help advance treatments for both conditions. This review discusses precise information regarding common risk factors, such as aging, obesity, diabetes, and tobacco usage.
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Affiliation(s)
- Atefeh Afsar
- Department of Biological Sciences, University of Texas at Dallas, Richardson, TX 75080, USA
| | - Li Zhang
- Department of Biological Sciences, University of Texas at Dallas, Richardson, TX 75080, USA
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He M, Lian T, Liu Z, Li J, Qi J, Li J, Guo P, Zhang Y, Luo D, Guan H, Zhang W, Zheng Z, Yue H, Zhang W, Wang R, Zhang F, Zhang W. An investigation into the potential association between nutrition and Alzheimer's disease. Front Nutr 2024; 11:1306226. [PMID: 38515521 PMCID: PMC10955128 DOI: 10.3389/fnut.2024.1306226] [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: 10/06/2023] [Accepted: 02/23/2024] [Indexed: 03/23/2024] Open
Abstract
Background Malnutrition is the most common nutritional issue in Alzheimer's disease (AD) patients, but there is still a lack of a comprehensive evaluation of the nutritional status in AD patients. This study aimed to determine the potential association of various nutritional indices with AD at different stages. Methods Subjects, including individuals with normal cognition (NC) and patients diagnosed with AD, were consecutively enrolled in this cross-sectional study. Demographics, body composition, dietary patterns, nutritional assessment scales and nutrition-related laboratory variables were collected. Binary logistics regression analyses and receiver operating characteristic (ROC) curves were used to indicate the association between nutrition-related variables and AD at different stages. Results Totals of 266 subjects, including 73 subjects with NC, 72 subjects with mild cognitive impairment due to AD (AD-MCI) and 121 subjects with dementia due to AD (AD-D) were included. There was no significant difference in dietary patterns, including Mediterranean diet and Mediterranean-DASH diet intervention for neurodegenerative delay (MIND) diet between the three groups. Lower BMI value, smaller hip and calf circumferences, lower Mini Nutritional Assessment (MNA) and Geriatric Nutritional Risk Index (GNRI) scores, and lower levels of total protein, albumin, globulin, and apolipoprotein A1 were associated with AD (all p < 0.05). Total protein and albumin levels had the greatest ability to distinguish AD from non-AD (AUC 0.80, 95% CI 0.74-0.84, p < 0.001), increased by combining calf circumference, MNA score and albumin level (AUC 0.83, 95% CI 0.77-0.88, p < 0.001). Albumin level had the greatest ability to distinguish NC from AD-MCI (AUC 0.75, 95% CI 0.67-0.82, p < 0.001), and MNA score greatest ability to distinguish AD-MCI from AD-D (AUC 0.72, 95% CI 0.65-0.78, p < 0.001). Conclusion Nutritional status of AD patients is significantly compromised compared with normal controls, and tends to be worsened with AD progresses. Early identification and intervention of individuals with nutritional risk or malnutrition may be significantly beneficial for reducing the risk, development, and progression of AD.
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Affiliation(s)
- Mingyue He
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Tenghong Lian
- Center for Cognitive Neurology, Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Zhan Liu
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Jinghui Li
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Jing Qi
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Jing Li
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Peng Guo
- Center for Cognitive Neurology, Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Yanan Zhang
- Department of Blood Transfusion, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Dongmei Luo
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Huiying Guan
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Weijia Zhang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Zijing Zheng
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Hao Yue
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Wenjing Zhang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Ruidan Wang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Fan Zhang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Wei Zhang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- Center for Cognitive Neurology, Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- Center of Parkinson’s Disease Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory on Parkinson Disease, Beijing, China
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Wang H, Jayasankar N, Thamaraikani T, Viktor P, Mohany M, Al-Rejaie SS, Alammar HK, Anad E, Alhili F, Hussein SF, Amin AH, Lakshmaiya N, Ahsan M, Bahrami A, Akhavan-Sigari R. Quercetin modulates expression of serum exosomal long noncoding RNA NEAT1 to regulate the miR-129-5p/BDNF axis and attenuate cognitive impairment in diabetic mice. Life Sci 2024; 340:122449. [PMID: 38253310 DOI: 10.1016/j.lfs.2024.122449] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 01/08/2024] [Accepted: 01/17/2024] [Indexed: 01/24/2024]
Abstract
AIMS Cognitive impairment poses a considerable health challenge in the context of type 2 diabetes mellitus (T2DM), emphasizing the need for effective interventions. This study delves into the therapeutic efficacy of quercetin, a natural flavonoid, in mitigating cognitive impairment induced by T2DM in murine models. MATERIALS AND METHODS Serum exosome samples were obtained from both T2DM-related and healthy mice for transcriptome sequencing, enabling the identification of differentially expressed mRNAs and long noncoding RNAs (lncRNAs). Subsequent experiments were conducted to ascertain the binding affinity between mmu-miR-129-5p, NEAT1 and BDNF. The structural characteristics and dimensions of isolated exosomes were scrutinized, and the expression levels of exosome-associated proteins were quantified. Primary mouse hippocampal neurons were cultured for in vitro validation, assessing the expression of pertinent genes as well as neuronal vitality, proliferation, and apoptosis capabilities. For in vivo validation, a T2DM mouse model was established, and quercetin treatment was administered. Changes in various parameters, cognitive ability, and the expression of insulin-related proteins, along with pivotal signaling pathways, were monitored. KEY FINDINGS Analysis of serum exosomes from T2DM mice revealed dysregulation of NEAT1, mmu-miR-129-5p, and BDNF. In vitro investigations demonstrated that NEAT1 upregulated BDNF expression by inhibiting mmu-miR-129-5p. Overexpression of mmu-miR-129-5p or silencing NEAT1 resulted in the downregulation of insulin-related protein expression, enhanced apoptosis, and suppressed neuronal proliferation. In vivo studies validated that quercetin treatment significantly ameliorated T2DM-related cognitive impairment in mice. SIGNIFICANCE These findings suggest that quercetin holds promise in inhibiting hippocampal neuron apoptosis and improving T2DM-related cognitive impairment by modulating the NEAT1/miR-129-5p/BDNF pathway within serum exosomes.
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Affiliation(s)
- Hui Wang
- Department of Plastic Surgery, The Fourth Affiliated Hospital Zhejiang University School of Medicine, Yiwu 322000, China
| | - Narayanan Jayasankar
- Department of Pharmacology, SRM Institute of Science and Technology, SRM College of Pharmacy, Kattankulathur 603203, Tamil Nadu, India
| | - Tamilanban Thamaraikani
- Department of Pharmacology, SRM Institute of Science and Technology, SRM College of Pharmacy, Kattankulathur 603203, Tamil Nadu, India
| | - Patrik Viktor
- Keleti Károly Faculty of Business and Management, Óbuda University, Tavaszmező, H-1084 Budapest, Hungary
| | - Mohamed Mohany
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Salim S Al-Rejaie
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | | | - Enaam Anad
- Department of Medical Laboratory Technics, Al-Noor University College, Nineveh, Iraq
| | - Farah Alhili
- Medical Technical College, Al-Farahidi University, Iraq
| | - Sinan F Hussein
- Department of Pharmacy, Al-Zahrawi University College, Karbala, Iraq
| | - Ali H Amin
- Zoology Department, Faculty of Science, Mansoura University, Mansoura 35516, Egypt
| | - Natrayan Lakshmaiya
- Department of Mechanical Engineering, Saveetha School of Engineering, SIMATS, Chennai, Tamil Nadu, India
| | - Muhammad Ahsan
- Department of Measurements and Control Systems, Silesian University of Technology, Gliwice, Poland; Joint Doctoral School, Silesian University of Technology, Akademicka 2A, Gliwice, Poland.
| | - Abolfazl Bahrami
- Biomedical Center for Systems Biology Science Munich, Ludwig-Maximilians-University, Munich, Germany.
| | - Reza Akhavan-Sigari
- Department of Health Care Management and Clinical Research, Collegium Humanum Warsaw, Poland; Department of Neurosurgery, University Medical Center Tuebingen, Germany
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Gonzalez-Cano SI, Flores G, Guevara J, Morales-Medina JC, Treviño S, Diaz A. Polyoxidovanadates a new therapeutic alternative for neurodegenerative and aging diseases. Neural Regen Res 2024; 19:571-577. [PMID: 37721286 PMCID: PMC10581577 DOI: 10.4103/1673-5374.380877] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 05/18/2023] [Accepted: 06/22/2023] [Indexed: 09/19/2023] Open
Abstract
Aging is a natural phenomenon characterized by a progressive decline in physiological integrity, leading to a deterioration of cognitive function and increasing the risk of suffering from chronic-degenerative diseases, including cardiovascular diseases, osteoporosis, cancer, diabetes, and neurodegeneration. Aging is considered the major risk factor for Parkinson's and Alzheimer's disease develops. Likewise, diabetes and insulin resistance constitute additional risk factors for developing neurodegenerative disorders. Currently, no treatment can effectively reverse these neurodegenerative pathologies. However, some antidiabetic drugs have opened the possibility of being used against neurodegenerative processes. In the previous framework, Vanadium species have demonstrated a notable antidiabetic effect. Our research group evaluated polyoxidovanadates such as decavanadate and metforminium-decavanadate with preventive and corrective activity on neurodegeneration in brain-specific areas from rats with metabolic syndrome. The results suggest that these polyoxidovanadates induce neuronal and cognitive restoration mechanisms. This review aims to describe the therapeutic potential of polyoxidovanadates as insulin-enhancer agents in the brain, constituting a therapeutic alternative for aging and neurodegenerative diseases.
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Affiliation(s)
| | - Gonzalo Flores
- Institute of Physiology, Benemerita Autonomous University of Puebla, Puebla, Mexico
| | - Jorge Guevara
- Department of Biochemistry, Faculty of Medicine, National Autonomous University of Mexico, Mexico City, Mexico
| | | | - Samuel Treviño
- Faculty of Chemical Sciences, Benemerita Autonomous University of Puebla, Puebla, Mexico
| | - Alfonso Diaz
- Faculty of Chemical Sciences, Benemerita Autonomous University of Puebla, Puebla, Mexico
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Szablewski L. Changes in Cells Associated with Insulin Resistance. Int J Mol Sci 2024; 25:2397. [PMID: 38397072 PMCID: PMC10889819 DOI: 10.3390/ijms25042397] [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: 01/06/2024] [Revised: 02/10/2024] [Accepted: 02/14/2024] [Indexed: 02/25/2024] Open
Abstract
Insulin is a polypeptide hormone synthesized and secreted by pancreatic β-cells. It plays an important role as a metabolic hormone. Insulin influences the metabolism of glucose, regulating plasma glucose levels and stimulating glucose storage in organs such as the liver, muscles and adipose tissue. It is involved in fat metabolism, increasing the storage of triglycerides and decreasing lipolysis. Ketone body metabolism also depends on insulin action, as insulin reduces ketone body concentrations and influences protein metabolism. It increases nitrogen retention, facilitates the transport of amino acids into cells and increases the synthesis of proteins. Insulin also inhibits protein breakdown and is involved in cellular growth and proliferation. On the other hand, defects in the intracellular signaling pathways of insulin may cause several disturbances in human metabolism, resulting in several chronic diseases. Insulin resistance, also known as impaired insulin sensitivity, is due to the decreased reaction of insulin signaling for glucose levels, seen when glucose use in response to an adequate concentration of insulin is impaired. Insulin resistance may cause, for example, increased plasma insulin levels. That state, called hyperinsulinemia, impairs metabolic processes and is observed in patients with type 2 diabetes mellitus and obesity. Hyperinsulinemia may increase the risk of initiation, progression and metastasis of several cancers and may cause poor cancer outcomes. Insulin resistance is a health problem worldwide; therefore, mechanisms of insulin resistance, causes and types of insulin resistance and strategies against insulin resistance are described in this review. Attention is also paid to factors that are associated with the development of insulin resistance, the main and characteristic symptoms of particular syndromes, plus other aspects of severe insulin resistance. This review mainly focuses on the description and analysis of changes in cells due to insulin resistance.
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Affiliation(s)
- Leszek Szablewski
- Chair and Department of General Biology and Parasitology, Medical University of Warsaw, Chałubińskiego Str. 5, 02-004 Warsaw, Poland
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Butler AE, Moin ASM, Sathyapalan T, Atkin SL. A Cross-Sectional Study of Protein Changes Associated with Dementia in Non-Obese Weight Matched Women with and without Polycystic Ovary Syndrome. Int J Mol Sci 2024; 25:2409. [PMID: 38397086 PMCID: PMC10889209 DOI: 10.3390/ijms25042409] [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: 01/24/2024] [Revised: 02/14/2024] [Accepted: 02/16/2024] [Indexed: 02/25/2024] Open
Abstract
Dysregulated Alzheimer's disease (AD)-associated protein expression is reported in polycystic ovary syndrome (PCOS), paralleling the expression reported in type 2 diabetes (T2D). We hypothesized, however, that these proteins would not differ between women with non-obese and non-insulin resistant PCOS compared to matched control subjects. We measured plasma amyloid-related proteins levels (Amyloid-precursor protein (APP), alpha-synuclein (SNCA), amyloid P-component (APCS), Pappalysin (PAPPA), Microtubule-associated protein tau (MAPT), apolipoprotein E (apoE), apoE2, apoE3, apoE4, Serum amyloid A (SAA), Noggin (NOG) and apoA1) in weight and aged-matched non-obese PCOS (n = 24) and control (n = 24) women. Dementia-related proteins fibronectin (FN), FN1.3, FN1.4, Von Willebrand factor (VWF) and extracellular matrix protein 1 (ECM1) were also measured. Protein levels were determined by Slow Off-rate Modified Aptamer (SOMA)-scan plasma protein measurement. Only APCS differed between groups, being elevated in non-obese PCOS women (p = 0.03) relative to the non-obese control women. This differed markedly from the elevated APP, APCS, ApoE, FN, FN1.3, FN1.4 and VWF reported in obese women with PCOS. Non-obese, non-insulin resistant PCOS subjects have a lower AD-associated protein pattern risk profile versus obese insulin resistant PCOS women, and are not dissimilar to non-obese controls, indicating that lifestyle management to maintain optimal body weight could be beneficial to reduce the long-term AD-risk in women with PCOS.
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Affiliation(s)
- Alexandra E. Butler
- Research Department, Royal College of Surgeons of Ireland, Busaiteen P.O. Box 15503, Bahrain; (A.S.M.M.); (S.L.A.)
| | - Abu Saleh Md Moin
- Research Department, Royal College of Surgeons of Ireland, Busaiteen P.O. Box 15503, Bahrain; (A.S.M.M.); (S.L.A.)
| | - Thozhukat Sathyapalan
- Academic Endocrinology, Diabetes and Metabolism, Hull York Medical School, Hull HU6 7RU, UK;
| | - Stephen L. Atkin
- Research Department, Royal College of Surgeons of Ireland, Busaiteen P.O. Box 15503, Bahrain; (A.S.M.M.); (S.L.A.)
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Miron RJ, Estrin NE, Sculean A, Zhang Y. Understanding exosomes: Part 2-Emerging leaders in regenerative medicine. Periodontol 2000 2024; 94:257-414. [PMID: 38591622 DOI: 10.1111/prd.12561] [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: 02/04/2024] [Revised: 02/16/2024] [Accepted: 02/21/2024] [Indexed: 04/10/2024]
Abstract
Exosomes are the smallest subset of extracellular signaling vesicles secreted by most cells with the ability to communicate with other tissues and cell types over long distances. Their use in regenerative medicine has gained tremendous momentum recently due to their ability to be utilized as therapeutic options for a wide array of diseases/conditions. Over 5000 publications are currently being published yearly on this topic, and this number is only expected to dramatically increase as novel therapeutic strategies continue to be developed. Today exosomes have been applied in numerous contexts including neurodegenerative disorders (Alzheimer's disease, central nervous system, depression, multiple sclerosis, Parkinson's disease, post-traumatic stress disorders, traumatic brain injury, peripheral nerve injury), damaged organs (heart, kidney, liver, stroke, myocardial infarctions, myocardial infarctions, ovaries), degenerative processes (atherosclerosis, diabetes, hematology disorders, musculoskeletal degeneration, osteoradionecrosis, respiratory disease), infectious diseases (COVID-19, hepatitis), regenerative procedures (antiaging, bone regeneration, cartilage/joint regeneration, osteoarthritis, cutaneous wounds, dental regeneration, dermatology/skin regeneration, erectile dysfunction, hair regrowth, intervertebral disc repair, spinal cord injury, vascular regeneration), and cancer therapy (breast, colorectal, gastric cancer and osteosarcomas), immune function (allergy, autoimmune disorders, immune regulation, inflammatory diseases, lupus, rheumatoid arthritis). This scoping review is a first of its kind aimed at summarizing the extensive regenerative potential of exosomes over a broad range of diseases and disorders.
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Affiliation(s)
- Richard J Miron
- Department of Periodontology, University of Bern, Bern, Switzerland
| | - Nathan E Estrin
- Advanced PRF Education, Venice, Florida, USA
- School of Dental Medicine, Lake Erie College of Osteopathic Medicine, Bradenton, Florida, USA
| | - Anton Sculean
- Department of Periodontology, University of Bern, Bern, Switzerland
| | - Yufeng Zhang
- Department of Oral Implantology, University of Wuhan, Wuhan, China
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Liu Y, Tan Y, Zhang Z, Yi M, Zhu L, Peng W. The interaction between ageing and Alzheimer's disease: insights from the hallmarks of ageing. Transl Neurodegener 2024; 13:7. [PMID: 38254235 PMCID: PMC10804662 DOI: 10.1186/s40035-024-00397-x] [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: 09/13/2023] [Revised: 12/31/2023] [Accepted: 01/02/2024] [Indexed: 01/24/2024] Open
Abstract
Ageing is a crucial risk factor for Alzheimer's disease (AD) and is characterised by systemic changes in both intracellular and extracellular microenvironments that affect the entire body instead of a single organ. Understanding the specific mechanisms underlying the role of ageing in disease development can facilitate the treatment of ageing-related diseases, such as AD. Signs of brain ageing have been observed in both AD patients and animal models. Alleviating the pathological changes caused by brain ageing can dramatically ameliorate the amyloid beta- and tau-induced neuropathological and memory impairments, indicating that ageing plays a crucial role in the pathophysiological process of AD. In this review, we summarize the impact of several age-related factors on AD and propose that preventing pathological changes caused by brain ageing is a promising strategy for improving cognitive health.
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Affiliation(s)
- Yuqing Liu
- Department of Integrated Traditional Chinese and Western Medicine, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, 410011, Hunan, People's Republic of China
- National Clinical Research Center for Metabolic Diseases, Changsha, 410011, People's Republic of China
| | - Yejun Tan
- School of Mathematics, University of Minnesota Twin Cities, Minneapolis, MN, 55455, USA
| | - Zheyu Zhang
- Department of Integrated Traditional Chinese and Western Medicine, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, 410011, Hunan, People's Republic of China
- National Clinical Research Center for Metabolic Diseases, Changsha, 410011, People's Republic of China
| | - Min Yi
- Department of Integrated Traditional Chinese and Western Medicine, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, 410011, Hunan, People's Republic of China
- National Clinical Research Center for Metabolic Diseases, Changsha, 410011, People's Republic of China
| | - Lemei Zhu
- Academician Workstation, Changsha Medical University, Changsha, 410219, People's Republic of China
| | - Weijun Peng
- Department of Integrated Traditional Chinese and Western Medicine, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, 410011, Hunan, People's Republic of China.
- National Clinical Research Center for Metabolic Diseases, Changsha, 410011, People's Republic of China.
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Butler AE, Moin ASM, Sathyapalan T, Atkin SL. A Cross-Sectional Study of Alzheimer-Related Proteins in Women with Polycystic Ovary Syndrome. Int J Mol Sci 2024; 25:1158. [PMID: 38256230 PMCID: PMC10816448 DOI: 10.3390/ijms25021158] [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: 12/09/2023] [Revised: 01/09/2024] [Accepted: 01/15/2024] [Indexed: 01/24/2024] Open
Abstract
Polycystic ovary syndrome (PCOS) is the most common endocrine condition in women of reproductive age, and several risk factors found in PCOS are associated with an increased risk of Alzheimer's disease (AD). Proteins increased in AD have been reported to include fibronectin (FN) fragments 3 and 4 (FN1.3 and FN1.4, respectively) and ApoE. We hypothesized that Alzheimer-related proteins would be dysregulated in PCOS because of associated insulin resistance and obesity. In this comparative cross-sectional analysis, aptamer-based SomaScan proteomic analysis for the detection of plasma Alzheimer-related proteins was undertaken in a PCOS biobank of 143 women with PCOS and 97 control women. Amyloid precursor protein (APP) (p < 0.05) and amyloid P-component (APCS) (p < 0.001) were elevated in PCOS, while alpha-synuclein (SNCA) (p < 0.05) was reduced in PCOS. Associations with protective heat shock proteins (HSPs) showed that SNCA positively correlated with HSP90 (p < 0.0001) and HSP60 (p < 0.0001) in both the PCOS and control women. Correlations with markers of inflammation showed that APCS correlated with interleukin 6 (IL6) (p = 0.04), while Apolipoprotein (Apo) E3 correlated with TNF-alpha (p = 0.02). FN, FN1.3, FN1.4 and ApoE were all elevated significantly (p < 0.05). An AD-associated protein pattern with elevated FN, FN1.3, FN1.4 and ApoE was found in PCOS, in addition to elevated APP and reduced SNCA, which was the same as reported for type 2 diabetes (T2D) with, additionally, an elevation in APCS. With the AD biomarker pattern in PCOS being very similar to that in T2D, where there is an association between AD and T2D, this suggests that larger prospective cohort studies are needed in women with PCOS to determine if there is a causal association with AD.
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Affiliation(s)
- Alexandra E. Butler
- Research Department, Royal College of Surgeons of Ireland, Busaiteen P.O. Box 15503, Bahrain; (A.S.M.M.); (S.L.A.)
| | - Abu Saleh Md Moin
- Research Department, Royal College of Surgeons of Ireland, Busaiteen P.O. Box 15503, Bahrain; (A.S.M.M.); (S.L.A.)
| | - Thozhukat Sathyapalan
- Academic Endocrinology, Diabetes and Metabolism, Hull York Medical School, Hull HU6 7RU, UK;
| | - Stephen L. Atkin
- Research Department, Royal College of Surgeons of Ireland, Busaiteen P.O. Box 15503, Bahrain; (A.S.M.M.); (S.L.A.)
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Ye YC, Chai SF, Li XR, Wu MN, Cai HY, Wang ZJ. Intermittent fasting and Alzheimer's disease-Targeting ketone bodies as a potential strategy for brain energy rescue. Metab Brain Dis 2024; 39:129-146. [PMID: 37823968 DOI: 10.1007/s11011-023-01288-2] [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: 04/15/2023] [Accepted: 09/01/2023] [Indexed: 10/13/2023]
Abstract
Alzheimer's disease (AD) lacks effective clinical treatments. As the disease progresses, the cerebral glucose hypometabolism that appears in the preclinical phase of AD gradually worsens, leading to increasingly severe brain energy disorders. This review analyzes the brain energy deficit in AD and its etiology, brain energy rescue strategies based on ketone intervention, the effects and mechanisms of IF, the differences in efficacy between IF and ketogenic diet and the duality of IF. The evidence suggests that brain energy deficits lead to the development and progression of AD pathology. IF, which improves brain energy impairments by promoting ketone metabolism, thus has good therapeutic potential for AD.
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Affiliation(s)
- Yu- Cai Ye
- Department of Physiology, Key Laboratory of Cellular Physiology, Ministry of Education, Shanxi Medical University, Taiyuan, People's Republic of China
| | - Shi-Fan Chai
- Department of Physiology, Key Laboratory of Cellular Physiology, Ministry of Education, Shanxi Medical University, Taiyuan, People's Republic of China
| | - Xin-Ru Li
- Department of Physiology, Key Laboratory of Cellular Physiology, Ministry of Education, Shanxi Medical University, Taiyuan, People's Republic of China
| | - Mei-Na Wu
- Department of Physiology, Key Laboratory of Cellular Physiology, Ministry of Education, Shanxi Medical University, Taiyuan, People's Republic of China
| | - Hong-Yan Cai
- Department of Microbiology and Immunology, Shanxi Medical University, Taiyuan, People's Republic of China
| | - Zhao-Jun Wang
- Department of Physiology, Key Laboratory of Cellular Physiology, Ministry of Education, Shanxi Medical University, Taiyuan, People's Republic of China.
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Li W, Jiang J, Yin X, Zhang Y, Zou X, Sun M, Jia J, Ma B, Xu J. Mediation of Regional Cerebral Blood Flow in the Relationship between Specific Gut Microbiota and Cognition in Vascular Cognitive Impairment. J Alzheimers Dis 2024; 97:435-445. [PMID: 38108351 DOI: 10.3233/jad-230709] [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: 12/19/2023]
Abstract
BACKGROUND Gut microbiota could affect the onset and development of vascular cognitive impairment (VCI) through modulating metabolic and immune pathways. However, the vascular mechanisms involved remain unclear. OBJECTIVE To investigate the gut microbiota associated with VCI and examine the mediating effects of regional cerebral blood flow (CBF) to explore potential therapeutic targets for VCI. METHODS This prospective study enrolled patients with VCI (n = 16) and healthy controls (n = 18) from the Chinese Imaging, Biomarkers, and Lifestyle study between January 1 and June 30, 2022. The gut microbiota composition and diversity were determined by 16 S ribosomal RNA gene sequencing. The association between gut microbiota and Montreal Cognitive Assessment (MoCA) scores was determined using Spearman's correlation analysis. Regional CBF was calculated using pseudo-continuous arterial spin labeling. The mediating effects of regional CBF on the relationship between specific gut microbiota and cognition in VCI were investigated using mediation analysis. RESULTS Compared to healthy controls, patients with VCI had significantly greater abundance of Bifidobacterium, Veillonella, R uminococcus gnavus , Fusobacterium, and Erysipelatoclostridium and smaller abundance of Collinsella. The abundance of Ruminococcus gnavus was negatively associated with MoCA scores in patients with VCI, with the CBF in the left hypothalamus, right hypothalamus, and left amygdala accounting for 63.96%, 48.22%, and 36.51%, respectively, of this association after adjusting for confounders. CONCLUSIONS Ruminococcus gnavus is associated with cognition in VCI, which is strongly mediated by CBF in the bilateral hypothalamus and left amygdala. These findings highlight the potential regulatory roles of nutrition and metabolism-related areas of the brain in VCI.
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Affiliation(s)
- Wenyi Li
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing, China
| | - Jiwei Jiang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing, China
| | | | - Yuan Zhang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing, China
| | - Xinying Zou
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing, China
| | - Mengfan Sun
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing, China
| | - Jianjun Jia
- Department of Geriatric Neurology, The Second Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Baiping Ma
- Beijing Institute of Radiation Medicine, Beijing, China
| | - Jun Xu
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing, China
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45
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Cheng Y, Zhu H, Sun D, Li L, Liu C, Sun S, Guo Y, Gu C, Gao Y, He G, Xue S. High triglyceride-glucose index at admission is a predictor of post-stroke cognitive impairment in patients with acute ischemic stroke. J Stroke Cerebrovasc Dis 2024; 33:107510. [PMID: 38000109 DOI: 10.1016/j.jstrokecerebrovasdis.2023.107510] [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: 08/16/2023] [Revised: 10/30/2023] [Accepted: 11/20/2023] [Indexed: 11/26/2023] Open
Abstract
BACKGROUND Post-stroke cognitive impairment (PSCI) is a very common complication of ischemic stroke (IS). Triglyceride-glucose (TyG) index was an effective alternative marker of insulin resistance (IR). This prospective study was designed to explore the correlation between TyG index and PSCI. METHODS Between January 1 2021 to June 30 2022, consecutive patients with first onset IS were enrolled prospectively. Baseline information was collected at admission and fasting blood was drawn the next morning. Montreal Cognitive Assessment (MoCA) was used to evaluate cognitive function at three months after stroke. Multiple regression analysis was used to explore the correlation between PSCI and TyG. Receiver operating characteristic (ROC) was performed to evaluate the predictive ability. RESULTS Ultimately, 313 patients were enrolled in this study. The TyG index was higher in patients with PSCI than those without PSCI (8.99 (8.55, 9.54) vs. 8.61(8.25, 8.87), P<0.001). The spearman correlation analysis indicated that TyG index was negatively correlated with MoCA score (r=-0.272, P<0.001). The multivariate logistic regression analysis demonstrated that TyG index was correlated with PSCI independently (P<0.001) regardless of whether the patients had diabetes or not. The area under curve (AUC) of the ROC was 0.684 (95%CI=0.635-0.768, P<0.001). The optimal cutoff value of TyG index for predicting PSCI was 8.81, with a sensitivity of 61.7% and a specificity of 73.6%. CONCLUSION A higher TyG index level at admission was independently correlated with increased risk of PSCI three months later and could be used as a predictor.
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Affiliation(s)
- Yongqing Cheng
- Department of Neurology, The First Affiliated Hospital of Soochow University, No. 188 Shizi Road, Suzhou, Jiangsu Province 215006, China; Department of Neurology, The Fourth Affiliated Hospital of Nantong University, The First People's Hospital of Yancheng, Jiangsu Province 224000, China.
| | - Honghong Zhu
- Department of Rheumatology and Immunology, The Fourth Affiliated Hospital of Nantong University, The First People's Hospital of Yancheng, Yancheng, Jiangsu Province 224000, China.
| | - Dingming Sun
- Department of Neurology, The Fourth Affiliated Hospital of Nantong University, The First People's Hospital of Yancheng, Jiangsu Province 224000, China.
| | - Lei Li
- Department of Neurology, The Fourth Affiliated Hospital of Nantong University, The First People's Hospital of Yancheng, Jiangsu Province 224000, China.
| | - Changxia Liu
- Department of Neurology, The Fourth Affiliated Hospital of Nantong University, The First People's Hospital of Yancheng, Jiangsu Province 224000, China.
| | - Shifu Sun
- Department of Neurology, The Fourth Affiliated Hospital of Nantong University, The First People's Hospital of Yancheng, Jiangsu Province 224000, China.
| | - Yan Guo
- Department of Neurology, The Fourth Affiliated Hospital of Nantong University, The First People's Hospital of Yancheng, Jiangsu Province 224000, China.
| | - Cong Gu
- Department of Neurology, The Fourth Affiliated Hospital of Nantong University, The First People's Hospital of Yancheng, Jiangsu Province 224000, China.
| | - Yang Gao
- Department of Neurology, The Fourth Affiliated Hospital of Nantong University, The First People's Hospital of Yancheng, Jiangsu Province 224000, China.
| | - Guojun He
- Department of Neurology, The Fourth Affiliated Hospital of Nantong University, The First People's Hospital of Yancheng, Jiangsu Province 224000, China.
| | - Shouru Xue
- Department of Neurology, The First Affiliated Hospital of Soochow University, No. 188 Shizi Road, Suzhou, Jiangsu Province 215006, China.
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Chib S, Devi S, Chalotra R, Mittal N, Singh TG, Kumar P, Singh R. Cross Talks between CNS and CVS Diseases: An Alliance to Annihilate. Curr Cardiol Rev 2024; 20:63-76. [PMID: 38441007 DOI: 10.2174/011573403x278550240221112636] [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: 08/22/2023] [Revised: 01/18/2024] [Accepted: 01/26/2024] [Indexed: 03/06/2024] Open
Abstract
Cardiovascular and neurological diseases cause substantial morbidity and mortality globally. Moreover, cardiovascular diseases are the leading cause of death globally. About 17.9 million people are affected by cardiovascular diseases and 6.8 million people die every year due to neurological diseases. The common neurologic manifestations of cardiovascular illness include stroke syndrome which is responsible for unconsciousness and several other morbidities significantly diminished the quality of life of patients. Therefore, it is prudent need to explore the mechanistic and molecular connection between cardiovascular disorders and neurological disorders. The present review emphasizes the association between cardiovascular and neurological diseases specifically Parkinson's disease, Alzheimer's disease, and Huntington's disease.
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Affiliation(s)
- Shivani Chib
- Department of Pharmacology, Central University of Punjab, Bathinda, Punjab, India
| | - Sushma Devi
- Department of Pharmacology, Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Rishabh Chalotra
- Department of Pharmacology, Central University of Punjab, Bathinda, Punjab, India
| | - Neeraj Mittal
- Department of Pharmacology, Central University of Punjab, Bathinda, Punjab, India
| | - Thakur Gurjeet Singh
- Department of Pharmacology, Central University of Punjab, Bathinda, Punjab, India
| | - Puneet Kumar
- Department of Pharmacology, Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Randhir Singh
- Department of Pharmacology, Central University of Punjab, Bathinda, Punjab, India
- School of Pharmacy, Graphic Era Hill University, Dehradun, India
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Simon Machado R, Mathias K, Joaquim L, Willig de Quadros R, Petronilho F, Tezza Rezin G. From diabetic hyperglycemia to cerebrovascular Damage: A narrative review. Brain Res 2023; 1821:148611. [PMID: 37793604 DOI: 10.1016/j.brainres.2023.148611] [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: 07/13/2023] [Revised: 09/04/2023] [Accepted: 09/28/2023] [Indexed: 10/06/2023]
Abstract
Diabetes mellitus is a globally significant disease that can lead to systemic complications, particularly vascular damage, including cardiovascular and cerebrovascular diseases of relevance. The physiological changes resulting from the imbalance in blood glucose levels play a crucial role in initiating vascular endothelial damage. Elevated glucose levels can also penetrate the central nervous system, triggering diabetic encephalopathy characterized by oxidative damage to brain components and activation of alternative and neurotoxic pathways. This brain damage increases the risk of ischemic stroke, a leading cause of mortality worldwide and a major cause of disability among surviving patients. The aim of this review is to highlight important pathways related to hyperglycemic damage that extend to the brain and result in vascular dysfunction, ultimately leading to the occurrence of a stroke. Understanding how diabetes mellitus contributes to the development of ischemic stroke and its impact on patient outcomes is crucial for implementing therapeutic strategies that reduce the incidence of diabetes mellitus and its complications, ultimately decreasing morbidity and mortality associated with the disease.
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Affiliation(s)
- Richard Simon Machado
- Laboratory of Experimental Neurology, Graduate Program in Health Sciences, Health Sciences Unit, University of Southern Santa Catarina, Criciuma, SC, Brazil; Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Graduate Program in Health Sciences, Health Sciences Unit, University of South Santa Catarina, Tubarão, SC, Brazil.
| | - Khiany Mathias
- Laboratory of Experimental Neurology, Graduate Program in Health Sciences, Health Sciences Unit, University of Southern Santa Catarina, Criciuma, SC, Brazil
| | - Larissa Joaquim
- Laboratory of Experimental Neurology, Graduate Program in Health Sciences, Health Sciences Unit, University of Southern Santa Catarina, Criciuma, SC, Brazil
| | - Rafaella Willig de Quadros
- Laboratory of Experimental Neurology, Graduate Program in Health Sciences, Health Sciences Unit, University of Southern Santa Catarina, Criciuma, SC, Brazil
| | - Fabricia Petronilho
- Laboratory of Experimental Neurology, Graduate Program in Health Sciences, Health Sciences Unit, University of Southern Santa Catarina, Criciuma, SC, Brazil
| | - Gislaine Tezza Rezin
- Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Graduate Program in Health Sciences, Health Sciences Unit, University of South Santa Catarina, Tubarão, SC, Brazil
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Rhea EM, Babin A, Thomas P, Omer M, Weaver R, Hansen K, Banks WA, Talbot K. Brain uptake pharmacokinetics of albiglutide, dulaglutide, tirzepatide, and DA5-CH in the search for new treatments of Alzheimer's and Parkinson's diseases. Tissue Barriers 2023:2292461. [PMID: 38095516 DOI: 10.1080/21688370.2023.2292461] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 12/02/2023] [Indexed: 06/29/2024] Open
Abstract
BACKGROUND A number of peptide incretin receptor agonists (IRAs) show promise as therapeutics for Alzheimer's disease (AD) and Parkinson's disease (PD). Transport across the blood-brain barrier (BBB) is one way for IRAs to act directly within the brain. To determine which IRAs are high priority candidates for treating these disorders, we have studied their brain uptake pharmacokinetics. METHODS We quantitatively measure the ability of four IRAs to cross the BBB. We injected adult male CD-1 mice intravenously with 125I- or 14C-labeled albiglutide, dulaglutide, DA5-CH, or tirzepatide and used multiple-time regression analyses to measure brain kinetics up to 1 hour. For those IRAs failing to enter the brain 1 h after intravenous injection, we also investigated their ability to enter over a longer time frame (i.e., 6 h). RESULTS Albiglutide and dulaglutide had the fastest brain uptake rates within 1 hour. DA5-CH appears to enter the brain rapidly, reaching equilibrium quickly. Tirzepatide does not appear to cross the BBB within 1 h after iv injection but like albumin, did so slowly over 6 h, presumably via the extracellular pathways. CONCLUSIONS We find that IRAs can cross the BBB by two separate processes; one that is fast and one that is slow. Three of the four IRAs investigated here have fast rates of transport and should be taken into consideration for testing as AD and PD therapeutics as they would have the ability to act quickly and directly on the brain as a whole.
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Affiliation(s)
- Elizabeth M Rhea
- Veterans Affairs Puget Sound Health Care System, Geriatrics Research Education and Clinical Center, Seattle, WA, USA
- Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Washington School of Medicine, Seattle, WA, USA
| | - Alice Babin
- Veterans Affairs Puget Sound Health Care System, Geriatrics Research Education and Clinical Center, Seattle, WA, USA
| | - Peter Thomas
- Veterans Affairs Puget Sound Health Care System, Geriatrics Research Education and Clinical Center, Seattle, WA, USA
| | - Mohamed Omer
- Veterans Affairs Puget Sound Health Care System, Geriatrics Research Education and Clinical Center, Seattle, WA, USA
| | - Riley Weaver
- Veterans Affairs Puget Sound Health Care System, Geriatrics Research Education and Clinical Center, Seattle, WA, USA
| | - Kim Hansen
- Veterans Affairs Puget Sound Health Care System, Geriatrics Research Education and Clinical Center, Seattle, WA, USA
| | - William A Banks
- Veterans Affairs Puget Sound Health Care System, Geriatrics Research Education and Clinical Center, Seattle, WA, USA
- Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Washington School of Medicine, Seattle, WA, USA
| | - Konrad Talbot
- Departments of Neurosurgery, Pathology and Human Anatomy, and Basic Sciences, Loma Linda University School of Medicine, Loma Linda, CA, USA
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Rhee SJ, Min S, Hong M, Lee H, Lee HS, Kang DH, Ahn YM. The association between insulin resistance and depressive symptoms - A national representative cross-sectional study. J Psychosom Res 2023; 175:111502. [PMID: 37812941 DOI: 10.1016/j.jpsychores.2023.111502] [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: 08/12/2023] [Revised: 09/24/2023] [Accepted: 09/24/2023] [Indexed: 10/11/2023]
Abstract
OBJECTIVE Increasing evidence suggests a positive association between insulin resistance (IR) and depression. However, whether sex-or body mass index-specific differences exist remains controversial, and only few studies have analyzed specific symptom domains. Thus, the present study aimed to analyze the association between IR and depressive symptom domains and to clarify the effects of sex and body mass index. METHODS The study sample comprised 4007 participants, aged 19-79, from the Korea National Health and Nutrition Examination Study 2020. Participants completed health interviews and examinations, providing data on circulating insulin and glucose levels, the Patient Health Questionnaire-9 (PHQ-9), and related covariates. IR was calculated using the homeostasis model assessment of insulin resistance. Associations between IR and PHQ-9 were analyzed using negative binomial regression with adjustments for the complex survey design. RESULTS The association between log-transformed IR and PHQ-9 total scores was statistically significant (incidence rate ratio [IRR] = 1.17, 95% confidence interval [CI] = 1.07-1.29, p = 0.001). Only body mass index specific differences were statistically significant, as the association was only significant in those without obesity (IRR = 1.21, 95% CI = 1.06-1.38, p = 0.005). IR was associated with cognitive/affective (IRR = 1.23, 95% CI = 1.08-1.41, p = 0.002) and somatic (IRR = 1.14, 95% CI = 1.04-1.25, p = 0.005) depressive symptom domains. Sensitivity analyses revealed similar results. CONCLUSIONS IR was positively associated with cognitive/affective and somatic depressive symptoms in non-obese individuals.
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Affiliation(s)
- Sang Jin Rhee
- Biomedical Research Institute, Seoul National University Hospital, 101, Daehak-ro, Jongno-Gu, Seoul 03080, Republic of Korea
| | - Sooyeon Min
- Department of Neuropsychiatry, Seoul National University Hospital, 101, Daehak-ro, Jongno-Gu, Seoul 03080, Republic of Korea; Department of Psychiatry, Seoul National University College of Medicine, 103, Daehak-ro, Jongno-Gu, Seoul 03080, Republic of Korea
| | - Minseok Hong
- Department of Neuropsychiatry, Seoul National University Hospital, 101, Daehak-ro, Jongno-Gu, Seoul 03080, Republic of Korea; Department of Psychiatry, Seoul National University College of Medicine, 103, Daehak-ro, Jongno-Gu, Seoul 03080, Republic of Korea
| | - Hyunju Lee
- Department of Neuropsychiatry, Seoul National University Hospital, 101, Daehak-ro, Jongno-Gu, Seoul 03080, Republic of Korea
| | - Han-Sung Lee
- Department of Neuropsychiatry, Seoul National University Hospital, 101, Daehak-ro, Jongno-Gu, Seoul 03080, Republic of Korea
| | - Dae Hun Kang
- Department of Neuropsychiatry, Seoul National University Hospital, 101, Daehak-ro, Jongno-Gu, Seoul 03080, Republic of Korea
| | - Yong Min Ahn
- Department of Neuropsychiatry, Seoul National University Hospital, 101, Daehak-ro, Jongno-Gu, Seoul 03080, Republic of Korea; Department of Psychiatry, Seoul National University College of Medicine, 103, Daehak-ro, Jongno-Gu, Seoul 03080, Republic of Korea; Institute of Human Behavioral Medicine, Seoul National University Medical Research Center, 103, Daehak-ro, Jongno-Gu, Seoul 03080, Republic of Korea.
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Gholami A. Alzheimer's disease: The role of proteins in formation, mechanisms, and new therapeutic approaches. Neurosci Lett 2023; 817:137532. [PMID: 37866702 DOI: 10.1016/j.neulet.2023.137532] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 10/03/2023] [Accepted: 10/18/2023] [Indexed: 10/24/2023]
Abstract
Alzheimer's disease (AD) is a progressive neurological disorder that affects the central nervous system (CNS), leading to memory and cognitive decline. In AD, the brain experiences three main structural changes: a significant decrease in the quantity of neurons, the development of neurofibrillary tangles (NFT) composed of hyperphosphorylated tau protein, and the formation of amyloid beta (Aβ) or senile plaques, which are protein deposits found outside cells and surrounded by dystrophic neurites. Genetic studies have identified four genes associated with autosomal dominant or familial early-onset AD (FAD): amyloid precursor protein (APP), presenilin 1 (PS1), presenilin 2 (PS2), and apolipoprotein E (ApoE). The formation of plaques primarily involves the accumulation of Aβ, which can be influenced by mutations in APP, PS1, PS2, or ApoE genes. Mutations in the APP and presenilin (PS) proteins can cause an increased amyloid β peptides production, especially the further form of amyloidogenic known as Aβ42. Apart from genetic factors, environmental factors such as cytokines and neurotoxins may also have a significant impact on the development and progression of AD by influencing the formation of amyloid plaques and intracellular tangles. Exploring the causes and implications of protein aggregation in the brain could lead to innovative therapeutic approaches. Some promising therapy strategies that have reached the clinical stage include using acetylcholinesterase inhibitors, estrogen, nonsteroidal anti-inflammatory drugs (NSAIDs), antioxidants, and antiapoptotic agents. The most hopeful therapeutic strategies involve inhibiting activity of secretase and preventing the β-amyloid oligomers and fibrils formation, which are associated with the β-amyloid fibrils accumulation in AD. Additionally, immunotherapy development holds promise as a progressive therapeutic approach for treatment of AD. Recently, the two primary categories of brain stimulation techniques that have been studied for the treatment of AD are invasive brain stimulation (IBS) and non-invasive brain stimulation (NIBS). In this article, the amyloid proteins that play a significant role in the AD formation, the mechanism of disease formation as well as new drugs utilized to treat of AD will be reviewed.
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Affiliation(s)
- Amirreza Gholami
- Department of Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran.
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