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Gedzun VR, Sukhanova IA, Aliper GM, Kotova MM, Melnik NO, Karimova EB, Voronkova AS, Coffman A, Pavshintcev VV, Mitkin NA, Doronin II, Babkin GA, Malyshev AV. From land to water: "Sunken" T-maze for associated learning in cichlid fish. Behav Brain Res 2024; 471:115077. [PMID: 38825022 DOI: 10.1016/j.bbr.2024.115077] [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: 01/07/2024] [Revised: 05/22/2024] [Accepted: 05/29/2024] [Indexed: 06/04/2024]
Abstract
The study introduced and evaluated learning paradigms for Maylandia callainos cichlids using a modified version of the rodent T-maze, filled with tank water (the "sunken" modification). Both male and female fish underwent training in two distinct conditioning paradigms. Firstly, simple operant conditioning involved placing a food reward in either the right or left compartment. Cichlids demonstrated the ability to purposefully find the bait within 6 days of training, with a persistent place preference lasting up to 6 days. Additionally, the learning dynamics varied with sex: female cichlids exhibited reduction in latency to visit the target compartment and consume the bait, along with a decrease in the number of errors 3 and 4 days earlier than males, respectively. Secondly, visually-cued operant conditioning was conducted, with a food reward exclusively placed in the yellow compartment, randomly positioned on the left or right side of the maze during each training session. Visual learning persisted for 10 days until reaction time improvement plateaued. Color preference disappeared after 4 consecutive check-ups, with no sex-related interference. For further validation of visually-cued operant conditioning paradigm, drugs MK-801 (dizocilpine) and caffeine, known to affect performance in learning tasks, were administered intraperitoneally. Chronic MK-801 (0.17 mg/kg) impaired maze learning, resulting in no color preference development. Conversely, caffeine administration enhanced test performance, increasing precision in fish. This developed paradigm offers a viable approach for studying learning and memory and presents an effective alternative to rodent-based drug screening tools, exhibiting good face and predictive validity.
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Jiang N, Yao C, Zhang Y, Sun X, Choudhary MI, Liu X. Ginsenoside Rg1 Attenuates Chronic Sleep Deprivation-Induced Hippocampal Mitochondrial Dysfunction and Improves Memory by the AMPK-SIRT3 Pathway. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:2362-2373. [PMID: 38236060 DOI: 10.1021/acs.jafc.3c04618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
Ginsenoside Rg1 (Rg1) is the main bioactive ginseng component. This study investigates the effects of Rg1 on cognitive deficits triggered by chronic sleep deprivation stress (CSDS) and explores its underlying mechanisms. Rg1 effectively improved spatial working and recognition memory, as evidenced by various behavioral tests. RNA-sequence analysis revealed differential gene expression in the metabolic pathway. Treatment with Rg1 abrogated reductions in SOD and CAT activity, lowered MDA content, and increased Nrf2 and HO-1 protein levels. Rg1 administration alleviated hippocampal mitochondrial dysfunction by restoring normal ultrastructure and enhancing ATP activities and Mfn2 expression while regulating Drp-1 expression. Rg1 mitigated neuronal apoptosis by reducing the Bax/Bcl-2 ratio and the levels of cleaved caspase-3. Additionally, Rg1 upregulated AMPK and SIRT3 protein expressions. These findings suggest that Rg1 has potential as a robust intervention for cognitive dysfunction associated with sleep deprivation, acting through the modulation of mitochondrial function, oxidative stress, apoptosis, and the AMPK-SIRT3 axis.
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Affiliation(s)
- Ning Jiang
- Research Center for Pharmacology and Toxicology, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
| | - Caihong Yao
- Research Center for Pharmacology and Toxicology, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
| | - Yiwen Zhang
- Research Center for Pharmacology and Toxicology, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
| | - Xinran Sun
- Research Center for Pharmacology and Toxicology, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
| | - M Iqbal Choudhary
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Xinmin Liu
- Institute of Drug Discovery Technology, Ningbo University, Ningbo 315211, Zhejiang, China
- Qian Xuesen Collaborative Research Center of Astrochemistry and Space Life Sciences, Ningbo University, Ningbo 315211, Zhejiang, China
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Gutiérrez-Rodelo C, Martínez-Tolibia SE, Morales-Figueroa GE, Velázquez-Moyado JA, Olivares-Reyes JA, Navarrete-Castro A. Modulating cyclic nucleotides pathways by bioactive compounds in combatting anxiety and depression disorders. Mol Biol Rep 2023; 50:7797-7814. [PMID: 37486442 PMCID: PMC10460744 DOI: 10.1007/s11033-023-08650-8] [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: 02/14/2023] [Accepted: 06/28/2023] [Indexed: 07/25/2023]
Abstract
Anxiety and depression disorders are highly prevalent neurological disorders (NDs) that impact up to one in three individuals during their lifetime. Addressing these disorders requires reducing their frequency and impact, understanding molecular causes, implementing prevention strategies, and improving treatments. Cyclic nucleotide monophosphates (cNMPs) like cyclic adenosine monophosphate (cAMP), cyclic guanosine monophosphate (cGMP), cyclic uridine monophosphate (cUMP), and cyclic cytidine monophosphate (cCMP) regulate the transcription of genes involved in neurotransmitters and neurological functions. Evidence suggests that cNMP pathways, including cAMP/cGMP, cAMP response element binding protein (CREB), and Protein kinase A (PKA), play a role in the physiopathology of anxiety and depression disorders. Plant and mushroom-based compounds have been used in traditional and modern medicine due to their beneficial properties. Bioactive compound metabolism can activate key pathways and yield pharmacological outcomes. This review focuses on the molecular mechanisms of bioactive compounds from plants and mushrooms in modulating cNMP pathways. Understanding these processes will support current treatments and aid in the development of novel approaches to reduce the prevalence of anxiety and depression disorders, contributing to improved outcomes and the prevention of associated complications.
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Affiliation(s)
- Citlaly Gutiérrez-Rodelo
- Department of Pharmacy, Faculty of Chemistry, National Autonomous University of Mexico (UNAM), Mexico City, ZIP 04510, Mexico.
| | | | - Guadalupe Elide Morales-Figueroa
- Department of Physiology, Biophysics, and Neurosciences of the Center for Research, Advanced Studies of the National Polytechnic Institute (CINVESTAV-IPN), Mexico City, ZIP, 07360, Mexico
| | - Josué Arturo Velázquez-Moyado
- Department of Pharmacy, Faculty of Chemistry, National Autonomous University of Mexico (UNAM), Mexico City, ZIP 04510, Mexico
| | - J Alberto Olivares-Reyes
- Department of Biochemistry, Center for Research and Advanced Studies of the National Polytechnic Institute (CINVESTAV-IPN) Mexico City, Mexico City, ZIP 07360, Mexico
| | - Andrés Navarrete-Castro
- Department of Pharmacy, Faculty of Chemistry, National Autonomous University of Mexico (UNAM), Mexico City, ZIP 04510, Mexico.
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Lu H, Zhang Y, Ran S, Chen Y, Ye Z, Huang M, Wang P. Ginsenoside Rg1 alleviates sleep deprivation-induced learning and memory impairment by inhibiting excessive neuronal apoptosis in zebrafish. Neuroreport 2023; 34:566-574. [PMID: 37384937 DOI: 10.1097/wnr.0000000000001926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/01/2023]
Abstract
Sleep deprivation impairs learning and memory. The neuroprotective function of ginsenoside Rg1 (Rg1) has been reported. This study aimed to investigate the alleviative effect and underlying mechanism of action of Rg1 on learning and memory deficits induced by sleep deprivation. Using 72 h of LED light to establish sleep deprivation model and treatment with Rg1-L (0.5 mg/ml), Rg1-H (1 mg/ml), and melatonin (positive control, 0.25 mg/ml), we investigated the behavioral performance of sleep deprivation zebrafish through 24 h autonomous movement tracking, a novel tank diving test, and a T-maze test. Brain injuries and ultrastructural changes were observed, brain water content was measured, and apoptotic events were analyzed using terminal deoxynucleotidyl transferase-mediated dUTP-biotin nick end labeling staining. The oxidation-associated biomarkers superoxide dismutase, catalase, and glutathione peroxidase activity and lipid peroxidation product malondialdehyde content were detected. Real-time PCR and western blotting were performed to detect the levels of apoptotic molecules (Bax, caspase-3, and Bcl-2). Rg1-treatment was observed to improve the behavioral performance of sleep-deprivation fish, alleviate brain impairment, and increase oxidative stress-related enzyme activity. Rg1 can effectively exhibit neuroprotective functions and improve learning and memory impairments caused by sleep deprivation, which could be mediated by the Bcl-2/Bax/caspase-3 apoptotic signaling pathway (see Supplementary Video Abstract, Supplemental digital content, http://links.lww.com/WNR/A702 which demonstrates our research objectives, introduction overview of Rg1, and main direction of future research).
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Affiliation(s)
- Haifei Lu
- School of Basic Medical Sciences, Hubei University of Chinese Medicine, Wuhan
| | - Yini Zhang
- School of Basic Medical Sciences, Hubei University of Chinese Medicine, Wuhan
| | - Simiao Ran
- HuangGang Hospital of TCM Affifiliated to Hubei University of Chinese Medicine, Huang Gang
| | - Yumeng Chen
- Clinical College of Traditional Chinese Medicine, Hubei University of Chinese Medicine
| | - Zijing Ye
- School of Basic Medical Sciences, Hubei University of Chinese Medicine, Wuhan
| | - Mengying Huang
- School of Basic Medical Sciences, Hubei University of Chinese Medicine, Wuhan
| | - Ping Wang
- Institute of Geriatrics, Hubei University of Chinese Medicine, Wuhan, China
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Zhang Q, Zheng L, Luo D, Huang M, Feng Y, Zhao M. Peptide WCPFSRSF alleviates sleep deprivation-induced memory impairment by inhibiting neuroinflammation and modulating IL-6/JAK/STAT signaling pathway. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.102176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Yang Y, Liang W, Wang Y, Peng D, Gong L, Wang N, Huang Z, Yang W. Hippocampal atrophy in neurofunctional subfields in insomnia individuals. Front Neurol 2022; 13:1014244. [DOI: 10.3389/fneur.2022.1014244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 09/20/2022] [Indexed: 11/13/2022] Open
Abstract
ObjectiveThe aim of this study was to investigate the pattern of volume changes in neurofunctional hippocampal subfields in patients with insomnia and their associations with risk of development of insomnia.MethodsA total of 120 patients with insomnia (78 females, 42 males; mean age ± standard deviation, 43.74 ± 13.02 years) and 120 good sleepers (67 females, 53 males; mean age, 42.69 ± 12.24 years) were recruited. The left hippocampus was segmented into anterior (L1), middle (L2), and posterior (L3) subregions. The right hippocampus was segmented into top anterior (R1), second top anterior (R2), middle (R3), posterior (R4), and last posterior (R5) subregions. Multivariate logistic regression was used to evaluate the associations of hippocampal volume (HV) of each subfield with the risk of the development of insomnia. Mediation analyses were performed to evaluate mediated associations among post-insomnia negative emotion, insomnia severity, and HV atrophy. A visual easy-to-deploy risk nomogram was used for individual prediction of risk of development of insomnia.ResultsHippocampal volume atrophy was identified in the L1, R1, and R2 subregions. L1 and R2 volume atrophy each predisposed to an ~3-fold higher risk of insomnia (L1, odds ratio: 2.90, 95% confidence intervals: [1.24, 6.76], p = 0.014; R2, 2.72 [1.19, 6.20], p = 0.018). Anxiety fully mediates the causal path of insomnia severity leading to R1 volume atrophy with a positive effect. We developed a practical and visual competing risk-nomogram tool for individual prediction of insomnia risk, which stratifies individuals into different levels of insomnia risk with the highest prediction accuracy of 97.4% and an average C-statistic of 0.83.ConclusionHippocampal atrophy in specific neurofunctional subfields was not only found to be associated with insomnia but also a significant risk factor predicting development of insomnia.
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Alves-Martinez P, Atienza-Navarro I, Vargas-Soria M, Carranza-Naval MJ, Infante-Garcia C, Benavente-Fernandez I, Del Marco A, Lubian-Lopez S, Garcia-Alloza M. Caffeine Restores Neuronal Damage and Inflammatory Response in a Model of Intraventricular Hemorrhage of the Preterm Newborn. Front Cell Dev Biol 2022; 10:908045. [PMID: 36035990 PMCID: PMC9411947 DOI: 10.3389/fcell.2022.908045] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 05/30/2022] [Indexed: 11/13/2022] Open
Abstract
Germinal matrix-intraventricular hemorrhage (GM-IVH) is the most frequent intracranial hemorrhage in the preterm infant (PT). Long-term GM-IVH-associated sequelae include cerebral palsy, sensory and motor impairment, learning disabilities, or neuropsychiatric disorders. The societal and health burden associated with GM-IVH is worsened by the fact that there is no successful treatment to limit or reduce brain damage and neurodevelopment disabilities. Caffeine (Caf) is a methylxanthine that binds to adenosine receptors, regularly used to treat the apnea of prematurity. While previous studies support the beneficial effects at the brain level of Caf in PT, there are no studies that specifically focus on the role of Caf in GM-IVH. Therefore, to further understand the role of Caf in GM-IVH, we have analyzed two doses of Caf (10 and 20 mg/kg) in a murine model of the disease. We have analyzed the short (P14) and long (P70) effects of the treatment on brain atrophy and neuron wellbeing, including density, curvature, and phospho-tau/total tau ratio. We have analyzed proliferation and neurogenesis, as well as microglia and hemorrhage burdens. We have also assessed the long-term effects of Caf treatment at cognitive level. To induce GM-IVH, we have administered intraventricular collagenase to P7 CD1 mice and have analyzed these animals in the short (P14) and long (P70) term. Caf showed a general neuroprotective effect in our model of GM-IVH of the PT. In our study, Caf administration diminishes brain atrophy and ventricle enlargement. Likewise, Caf limits neuronal damage, including neurite curvature and tau phosphorylation. It also contributes to maintaining neurogenesis in the subventricular zone, a neurogenic niche that is severely affected after GM-IVH. Furthermore, Caf ameliorates small vessel bleeding and inflammation in both the cortex and the subventricular zone. Observed mitigation of brain pathological features commonly associated with GM-IVH also results in a significant improvement of learning and memory abilities in the long term. Altogether, our data support the promising effects of Caf to reduce central nervous system complications associated with GM-IVH.
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Affiliation(s)
- Pilar Alves-Martinez
- Division of Physiology, School of Medicine, Universidad de Cadiz, Cadiz, Spain
- Biomedical Research and Innovation Institute of Cádiz Cadiz (INiBICA) Research Unit, Puerta del Mar University Hospital University of Cadiz, Cadiz, Spain
| | - Isabel Atienza-Navarro
- Division of Physiology, School of Medicine, Universidad de Cadiz, Cadiz, Spain
- Biomedical Research and Innovation Institute of Cádiz Cadiz (INiBICA) Research Unit, Puerta del Mar University Hospital University of Cadiz, Cadiz, Spain
| | - Maria Vargas-Soria
- Division of Physiology, School of Medicine, Universidad de Cadiz, Cadiz, Spain
- Biomedical Research and Innovation Institute of Cádiz Cadiz (INiBICA) Research Unit, Puerta del Mar University Hospital University of Cadiz, Cadiz, Spain
| | - Maria Jose Carranza-Naval
- Division of Physiology, School of Medicine, Universidad de Cadiz, Cadiz, Spain
- Biomedical Research and Innovation Institute of Cádiz Cadiz (INiBICA) Research Unit, Puerta del Mar University Hospital University of Cadiz, Cadiz, Spain
- Salus-Infirmorum, University of Cadiz, Cadiz, Spain
| | - Carmen Infante-Garcia
- Division of Physiology, School of Medicine, Universidad de Cadiz, Cadiz, Spain
- Biomedical Research and Innovation Institute of Cádiz Cadiz (INiBICA) Research Unit, Puerta del Mar University Hospital University of Cadiz, Cadiz, Spain
| | - Isabel Benavente-Fernandez
- Biomedical Research and Innovation Institute of Cádiz Cadiz (INiBICA) Research Unit, Puerta del Mar University Hospital University of Cadiz, Cadiz, Spain
- Area of Pediatrics, Department of Child and Mother Health and Radiology, Medical School, University of Cadiz, Cadiz, Spain
- Section of Neonatology, Division of Pediatrics, Hospital Universitario Puerta del Mar, Cadiz, Spain
| | - Angel Del Marco
- Division of Physiology, School of Medicine, Universidad de Cadiz, Cadiz, Spain
- Biomedical Research and Innovation Institute of Cádiz Cadiz (INiBICA) Research Unit, Puerta del Mar University Hospital University of Cadiz, Cadiz, Spain
| | - Simon Lubian-Lopez
- Biomedical Research and Innovation Institute of Cádiz Cadiz (INiBICA) Research Unit, Puerta del Mar University Hospital University of Cadiz, Cadiz, Spain
- Section of Neonatology, Division of Pediatrics, Hospital Universitario Puerta del Mar, Cadiz, Spain
- *Correspondence: Simon Lubian-Lopez, ; Monica Garcia-Alloza,
| | - Monica Garcia-Alloza
- Division of Physiology, School of Medicine, Universidad de Cadiz, Cadiz, Spain
- Biomedical Research and Innovation Institute of Cádiz Cadiz (INiBICA) Research Unit, Puerta del Mar University Hospital University of Cadiz, Cadiz, Spain
- *Correspondence: Simon Lubian-Lopez, ; Monica Garcia-Alloza,
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Keloglan SM, Sahin L, Cevik OS. Chronic caffeine consumption improves the acute REM sleep deprivation-induced spatial memory impairment while altering NMDA receptor subunit expression in male rats. Int J Dev Neurosci 2022; 82:596-605. [PMID: 35830151 DOI: 10.1002/jdn.10212] [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: 03/09/2022] [Revised: 06/08/2022] [Accepted: 07/04/2022] [Indexed: 11/07/2022] Open
Abstract
Caffeine is a psychostimulant substance that is mostly used to prevent fatigue, increase alertness, and ameliorate sleep loss situations. In this study, we aimed to investigate the effect of chronic caffeine consumption on learning and memory functions and related genes in REM (rapid-eye-movement) sleep-deprived rats. During the neonatal period [postnatal day (PND) 28] Wistar albino male rats (n=32) were randomly assigned into four groups: control (C), caffeine application (Cf), acute REM sleep-deprivation (RD), and caffeine application+acute RD (Cf+RD). The 48 hours of RD was executed when caffeine administration was completed. The learning and memory performance was evaluated by the Morris Water Maze Test (MWMT). Following this, the rats were decapitated to isolate hippocampus tissues. In MWMT, time spent in the targeted quadrant decreased significantly in the RD group compared to the C and Cf+RD group. NR2A expression level increased in the RD group compared to C, Cf, and Cf+RD groups (p<0.05). NR2B expression level increased in RD and Cf +RD groups compared to C and Cf groups (p<0.05). BDNF and c-Fos expression levels did not differ significantly between the groups. RD impaired hippocampal spatial memory performance in the MWMT test. Our results indicated that chronic caffeine consumption has a therapeutic effect on spatial memory deterioration impairment caused by RD. Furthermore, it seems that the effect of caffeine RD on the hippocampus may be mediated by NR2A.
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Affiliation(s)
| | - Leyla Sahin
- Physiology Department, Faculty of Medicine Mersin University, Mersin, Turkey
| | - Ozge Selin Cevik
- Physiology Department, Faculty of Medicine Mersin University, Mersin, Turkey
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Roflumilast, a Phosphodiesterase-4 Inhibitor, Ameliorates Sleep Deprivation-Induced Cognitive Dysfunction in C57BL/6J Mice. ACS Chem Neurosci 2022; 13:1938-1947. [PMID: 35736514 DOI: 10.1021/acschemneuro.2c00127] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Sleep deprivation (SD) interferes with long-term memory and cognitive functions by overactivation of phosphodiesterase (PDEs) enzymes. PDE4, a nonredundant regulator of the cyclic nucleotides (cAMP), is densely expressed in the hippocampus and is involved in learning and memory processes. In the present study, we investigated the effects of Roflumilast (ROF), a PDE4B inhibitor, on sleep deprivation-induced cognitive dysfunction in a mouse model. Memory assessment was performed using a novel object recognition task, and the hippocampal cAMP level was estimated by the ELISA method. The alterations in the expressions of PDE4B, amyloid-β (Aβ), CREB, BDNF, and synaptic proteins (Synapsin I, SAP 97, PSD 95) were assessed to gain insights into the possible mechanisms of action of ROF using the Western blot technique. Results show that ROF reversed SD-induced cognitive decline in mice. ROF downregulated PDE4B and Aβ expressions in the brain. Additionally, ROF improved the cAMP level and the protein expressions of synapsin I, SAP 97, and PSD 95 in the hippocampal region of SD mice. Taken together, these results suggest that ROF can suppress the deleterious effects of SD-induced cognitive dysfunction via the PDE4B-mediated cAMP/CREB/BDNF signaling cascade.
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Huang B, Sun B, Yang R, Liang S, Li X, Guo Y, Meng Q, Fu Y, Li W, Zhao P, Gong M, Shi Y, Song L, Wang S, Yuan F, Shi H. Long-lasting effects of postweaning sleep deprivation on cognitive function and social behaviors in adult mice. Neuropharmacology 2022; 215:109164. [PMID: 35716724 DOI: 10.1016/j.neuropharm.2022.109164] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 05/21/2022] [Accepted: 06/08/2022] [Indexed: 10/18/2022]
Abstract
Sleep deprivation (SD) has adverse effects on physical and mental health. Recently increasing attention has been given to SD in the early-life stage. However, the effects and mechanisms of postweaning SD on cognitive function and social behaviors are still unclear. In this study, SD was conducted in mice from postnatal Day 21 (PND21) to PND42, 6 h a day. Meanwhile, changes in body weight, food and water intake were continuously monitored. Behavioral tests were carried out in adulthood of mice. The levels of serum corticosterone, the proinflammatory cytokines interleukin-1β (IL-1β) and tumor necrosis factor-α (TNF-α), and the anti-inflammatory cytokines interleukin-10 (IL-10), vasopressin (VP) and oxytocin (OT) were measured by ELISA. Golgi staining was used to calculate neural dendritic spine density in the dorsal hippocampus (dHPC) CA1 region and medial prefrontal cortex (mPFC). We found that postweaning SD increased the food intake and the weight of female mice. Behavioral results showed that postweaning SD caused cognitive impairment and lowered social dominance in adult male mice but not in female mice. ELISA results showed that SD increased the levels of serum corticosterone, VP and OT in male mice and serum OT in female mice. Golgi staining analysis showed that SD decreased neural dendritic spine density in the dHPC in male mice. These results suggest that postweaning SD has a long-term effect on social dominance and cognitive function in male mice, which may provide a new insight into the role of SD in regulating cognitive function and social behaviors.
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Affiliation(s)
- Boya Huang
- Neuroscience Research Center, Institute of Medical and Health Science, Hebei Medical University, Shijiazhuang, 050017, China; Hebei Key Laboratory of Neurophysiology, Hebei Medicinal University, 050017, China
| | - Binhuang Sun
- Neuroscience Research Center, Institute of Medical and Health Science, Hebei Medical University, Shijiazhuang, 050017, China; Hebei Key Laboratory of Neurophysiology, Hebei Medicinal University, 050017, China
| | - Rui Yang
- Neuroscience Research Center, Institute of Medical and Health Science, Hebei Medical University, Shijiazhuang, 050017, China; Hebei Key Laboratory of Neurophysiology, Hebei Medicinal University, 050017, China
| | - Shihao Liang
- Neuroscience Research Center, Institute of Medical and Health Science, Hebei Medical University, Shijiazhuang, 050017, China; Hebei Key Laboratory of Neurophysiology, Hebei Medicinal University, 050017, China
| | - Xinrui Li
- Neuroscience Research Center, Institute of Medical and Health Science, Hebei Medical University, Shijiazhuang, 050017, China; Hebei Key Laboratory of Neurophysiology, Hebei Medicinal University, 050017, China
| | - Yi Guo
- Neuroscience Research Center, Institute of Medical and Health Science, Hebei Medical University, Shijiazhuang, 050017, China; Hebei Key Laboratory of Neurophysiology, Hebei Medicinal University, 050017, China
| | - Qian Meng
- Neuroscience Research Center, Institute of Medical and Health Science, Hebei Medical University, Shijiazhuang, 050017, China; Hebei Key Laboratory of Neurophysiology, Hebei Medicinal University, 050017, China
| | - Yaling Fu
- Neuroscience Research Center, Institute of Medical and Health Science, Hebei Medical University, Shijiazhuang, 050017, China; Hebei Key Laboratory of Neurophysiology, Hebei Medicinal University, 050017, China
| | - Wenshuya Li
- Neuroscience Research Center, Institute of Medical and Health Science, Hebei Medical University, Shijiazhuang, 050017, China
| | - Penghui Zhao
- Neuroscience Research Center, Institute of Medical and Health Science, Hebei Medical University, Shijiazhuang, 050017, China
| | - Miao Gong
- Neuroscience Research Center, Institute of Medical and Health Science, Hebei Medical University, Shijiazhuang, 050017, China; Hebei Key Laboratory of Neurophysiology, Hebei Medicinal University, 050017, China
| | - Yun Shi
- Department of Biochemistry and Molecular Biology, College of Basic Medicine, Hebei Medicinal University, Shijiazhuang, 050017, China
| | - Li Song
- Neuroscience Research Center, Institute of Medical and Health Science, Hebei Medical University, Shijiazhuang, 050017, China; Hebei Key Laboratory of Neurophysiology, Hebei Medicinal University, 050017, China; Department of Biochemistry and Molecular Biology, College of Basic Medicine, Hebei Medicinal University, Shijiazhuang, 050017, China
| | - Sheng Wang
- Hebei Key Laboratory of Neurophysiology, Hebei Medicinal University, 050017, China
| | - Fang Yuan
- Hebei Key Laboratory of Neurophysiology, Hebei Medicinal University, 050017, China
| | - Haishui Shi
- Neuroscience Research Center, Institute of Medical and Health Science, Hebei Medical University, Shijiazhuang, 050017, China; Hebei Key Laboratory of Neurophysiology, Hebei Medicinal University, 050017, China; Department of Biochemistry and Molecular Biology, College of Basic Medicine, Hebei Medicinal University, Shijiazhuang, 050017, China.
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Huang S, Si H, Liu J, Qi D, Pei X, Lu D, Zou S, Li Z. Sleep Loss Causes Dysfunction in Murine Extraorbital Lacrimal Glands. Invest Ophthalmol Vis Sci 2022; 63:19. [PMID: 35731510 PMCID: PMC9233287 DOI: 10.1167/iovs.63.6.19] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Purpose Sleep loss markedly affects the structure and function of the lacrimal gland and may cause ocular surface disease as a common public health problem. This study aims to investigate the circadian disturbance caused by sleep loss leading to dysfunction of extraorbital lacrimal glands (ELGs). Methods A mouse sleep deprivation (SD) model for sleep loss studies was built in C57BL/6J male mice. After four weeks, the ELGs were collected at three-hour intervals during a 24-hour period. The Jonckheere-Terpstra-Kendall algorithm was used to determine the composition, phase, and rhythmicity of transcriptomic profiles in ELGs. Furthermore, we compared the non-sleep-deprived and SD-treated mouse ELG (i) reactive oxygen species (ROS) by fluorescein staining, (ii) DNA damage by immunostaining for γ-H2Ax, and (iii) circadian migration of immune cells by immunostaining for CD4, CD8, γδ-TCR, CD64, and CX3CR1. Finally, we also evaluated (i) the locomotor activity and core body temperature rhythm of mice and (ii) the mass, cell size, and tear secretion of the ELGs. Results SD dramatically altered the composition and phase-associated functional enrichment of the circadian transcriptome, immune cell trafficking, metabolism, cell differentiation, and neural secretory activities of mouse ELGs. Additionally, SD caused the ROS accumulation and consequent DNA damage in the ELGs, and the ELG dysfunction caused by SD was irreversible. Conclusions SD damages the structure, function, and diurnal oscillations of ELGs. These results highlight comprehensive characterization of insufficient sleep–affected ELG circadian transcriptome that may provide a new therapeutic approach to counteract the effects of SD on ELG function.
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Affiliation(s)
- Shenzhen Huang
- Henan Eye Institute, Henan Eye Hospital, Henan Provincial People's Hospital, People's Hospital of Henan University, People's Hospital of Zhengzhou University, Zhengzhou, China
| | - Hongli Si
- Henan Eye Institute, Henan Eye Hospital, Henan Provincial People's Hospital, People's Hospital of Henan University, People's Hospital of Zhengzhou University, Zhengzhou, China
| | - Jiangman Liu
- Henan Eye Institute, Henan Eye Hospital, Henan Provincial People's Hospital, People's Hospital of Henan University, People's Hospital of Zhengzhou University, Zhengzhou, China
| | - Di Qi
- Henan Eye Institute, Henan Eye Hospital, Henan Provincial People's Hospital, People's Hospital of Henan University, People's Hospital of Zhengzhou University, Zhengzhou, China
| | - Xiaoting Pei
- Henan Eye Institute, Henan Eye Hospital, Henan Provincial People's Hospital, People's Hospital of Henan University, People's Hospital of Zhengzhou University, Zhengzhou, China
| | - Dingli Lu
- Henan Eye Institute, Henan Eye Hospital, Henan Provincial People's Hospital, People's Hospital of Henan University, People's Hospital of Zhengzhou University, Zhengzhou, China
| | - Sen Zou
- Henan Eye Institute, Henan Eye Hospital, Henan Provincial People's Hospital, People's Hospital of Henan University, People's Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhijie Li
- Henan Eye Institute, Henan Eye Hospital, Henan Provincial People's Hospital, People's Hospital of Henan University, People's Hospital of Zhengzhou University, Zhengzhou, China
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12
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Wang L, Aton SJ. Perspective - ultrastructural analyses reflect the effects of sleep and sleep loss on neuronal cell biology. Sleep 2022; 45:zsac047. [PMID: 35554582 PMCID: PMC9113019 DOI: 10.1093/sleep/zsac047] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 02/05/2022] [Indexed: 11/13/2022] Open
Abstract
Recent electron microscopic analyses of neurons in the Drosophila and rodent brain demonstrate that acute or chronic sleep loss can alter the structures of various organelles, including mitochondria, nucleus, and Golgi apparatus. Here, we discuss these findings in the context of biochemical findings from the sleep deprived brain, to clarify how these morphological changes may related to altered organelle function. We discuss how, taken together, the available data suggest that sleep loss (particularly chronic sleep loss) disrupts such fundamental cellular processes as transcription, translation, intracellular transport, and metabolism. A better understanding of these effects will have broad implications for understanding the biological importance of sleep, and the relationship of sleep loss to neuropathology.
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Affiliation(s)
- Lijing Wang
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI, USA
| | - Sara J Aton
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI, USA
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13
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Souza ACF, Monico-Neto M, Le Sueur Maluf L, Pidone FAM, Antunes HKM, Ribeiro DA. Paradoxical sleep deprivation induces tissue changes in the parotid gland of rats. Eur Arch Otorhinolaryngol 2022; 279:4569-4576. [PMID: 35482119 DOI: 10.1007/s00405-022-07397-5] [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: 02/22/2022] [Accepted: 04/06/2022] [Indexed: 11/03/2022]
Abstract
PURPOSE This study aimed to evaluate if paradoxical sleep deprivation induces some tissue changes in the parotid gland of rats. METHODS A total of 24 male Wistar rats were distributed into the following groups, as follows: Group 1-Control (CTRL; n = 8); Group 2-Sleep deprivation (PS; n = 8): the animals were submitted to Paradoxical Sleep deprivation for 96 h and Group 3-Recovery (R; n = 8): the animals were submitted to sleep loss for 96 h, followed by a period of 96 h without any intervention. The following parameters were evaluated: microscopic analysis, immunohistochemistry for Caspase-3, Ki-67, and COX-2 and gene expression of cytochrome C, TNF-α, and Interleukins 6, 10. RESULTS The results pointed out acinar atrophy, and the presence of cytoplasmic vacuoles in the parenchyma of the experimental groups. In the same groups, there was differential expression of interleukins 6, 10 and TNF-α. Apoptosis was also increased by means of cleaved caspase 3 expression. The cellular proliferation (ki-67 expression) was increased the R group. CONCLUSION Taken together, sleep deprivation induces tissue degeneration, inflammatory process, as well as activate apoptosis in the parotid gland of rats.
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Affiliation(s)
- Ana Carolina Flygare Souza
- Department of Biosciences, Institute of Heath and Society, Federal University of São Paulo, UNIFESP, Rua Silva Jardim, 136, Room 332, Vila Mathias, Santos, SP, 11050-020, Brazil
| | - Marcos Monico-Neto
- Department of Biosciences, Institute of Heath and Society, Federal University of São Paulo, UNIFESP, Rua Silva Jardim, 136, Room 332, Vila Mathias, Santos, SP, 11050-020, Brazil
| | - Luciana Le Sueur Maluf
- Department of Biosciences, Institute of Heath and Society, Federal University of São Paulo, UNIFESP, Rua Silva Jardim, 136, Room 332, Vila Mathias, Santos, SP, 11050-020, Brazil
| | - Flavia Andressa Mazzuco Pidone
- Department of Biosciences, Institute of Heath and Society, Federal University of São Paulo, UNIFESP, Rua Silva Jardim, 136, Room 332, Vila Mathias, Santos, SP, 11050-020, Brazil
| | - Hanna Karen Moreira Antunes
- Department of Biosciences, Institute of Heath and Society, Federal University of São Paulo, UNIFESP, Rua Silva Jardim, 136, Room 332, Vila Mathias, Santos, SP, 11050-020, Brazil
| | - Daniel Araki Ribeiro
- Department of Biosciences, Institute of Heath and Society, Federal University of São Paulo, UNIFESP, Rua Silva Jardim, 136, Room 332, Vila Mathias, Santos, SP, 11050-020, Brazil.
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14
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Interaction of lithium and sleep deprivation on memory performance and anxiety-like behavior in male Wistar rats. Behav Brain Res 2022; 428:113890. [DOI: 10.1016/j.bbr.2022.113890] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 03/12/2022] [Accepted: 04/07/2022] [Indexed: 12/28/2022]
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15
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Li ZH, Cheng L, Wen C, Ding L, You QY, Zhang SB. Activation of CNR1/PI3K/AKT Pathway by Tanshinone IIA Protects Hippocampal Neurons and Ameliorates Sleep Deprivation-Induced Cognitive Dysfunction in Rats. Front Pharmacol 2022; 13:823732. [PMID: 35295327 PMCID: PMC8920044 DOI: 10.3389/fphar.2022.823732] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Accepted: 01/26/2022] [Indexed: 12/04/2022] Open
Abstract
Sleep deprivation is commonplace in modern society, Short periods of continuous sleep deprivation (SD) may negatively affect brain and behavioral function and may lead to vehicle accidents and medical errors. Tanshinone IIA (Tan IIA) is an important lipid-soluble component of Salvia miltiorrhiza, which could exert neuroprotective effects. The aim of this study was to investigate the mechanism of neuroprotective effect of Tan IIA on acute sleep deprivation-induced cognitive dysfunction in rats. Tan IIA ameliorated behavioral abnormalities in sleep deprived rats, enhanced behavioral performance in WMW and NOR experiments, increased hippocampal dendritic spine density, and attenuated atrophic loss of hippocampal neurons. Tan IIA enhanced the expression of CB1, PI3K, AKT, STAT3 in rat hippocampus and down-regulated the expression ratio of Bax to Bcl-2. These effects were inhibited by cannabinoid receptor 1 antagonist (AM251). In conclusion, Tan IIA can play a neuroprotective role by activating the CNR1/PI3K/AKT signaling pathway to antagonize apoptosis in the hippocampus and improve sleep deprivation-induced spatial recognition and learning memory dysfunction in rats. Our study suggests that Tan IIA may be a candidate for the prevention of sleep deprivation-induced dysfunction in spatial recognition and learning memory.
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Affiliation(s)
- Zi-Heng Li
- Faculty of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China
| | - Li Cheng
- Faculty of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China
| | - Chun Wen
- Faculty of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China
| | - Li Ding
- Faculty of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China
| | - Qiu-Yun You
- Faculty of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China
| | - Shun-Bo Zhang
- Faculty of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China
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16
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Wang X, Yang Y, Xiao A, Zhang N, Miao M, Wang Z, Han J, Wen M. A comparative study of the effect of a gentle ketogenic diet containing medium-chain or long-chain triglycerides on chronic sleep deprivation-induced cognitive deficiency. Food Funct 2022; 13:2283-2294. [PMID: 35141738 DOI: 10.1039/d1fo04087a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The ketogenic diet (KD) is well known for its neuroprotective effect, but little is known about its prophylactic efficacy against chronic sleep deprivation (SD) induced cognitive deficiency. An emerging study indicated that ferroptosis plays an important role in neurologic diseases but has been rarely reported in chronic SD. Here, we investigated the prophylactic effects of a medium-chain triglyceride-enriched KD (MKD) and a long-chain triglyceride-enriched KD (LKD) on cognitive deficiency and revealed the underlying mechanism focused on ferroptosis in chronic SD model mice. The results showed that the MKD exhibited stronger effects than the LKD on improving cognitive deficiency via suppressing ferroptosis and improving synaptic plasticity. Further mechanism results indicated that MKD produced higher Sirt3 protein levels than LKD, which probably contributed to the synergistic effect of beta hydroxybutyric acid and decanoic acid. Our finds provide novel evidence for the KD as a safe and feasible dietary intervention to prevent chronic SD-induced cognitive deficiency, and suggest a better choice of medium-chain fatty acid-enriched KD.
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Affiliation(s)
- Xueyan Wang
- Institute of Biopharmaceutical Research, Liaocheng University, Liaocheng 252059, China.
| | - Yueqi Yang
- Institute of Biopharmaceutical Research, Liaocheng University, Liaocheng 252059, China.
| | - Aiai Xiao
- Institute of Biopharmaceutical Research, Liaocheng University, Liaocheng 252059, China.
| | - Ning Zhang
- Institute of Biopharmaceutical Research, Liaocheng University, Liaocheng 252059, China.
| | - Mingyong Miao
- Institute of Biopharmaceutical Research, Liaocheng University, Liaocheng 252059, China. .,Department of Biochemistry and Molecular Biology, The College of Basic Medical Sciences, The Second Military Medical University, Shanghai 200433, China
| | - Zhengping Wang
- Institute of Biopharmaceutical Research, Liaocheng University, Liaocheng 252059, China. .,Liaocheng High-Tech Biotechnology Co. Ltd, Liaocheng, 252059, China
| | - Jun Han
- Institute of Biopharmaceutical Research, Liaocheng University, Liaocheng 252059, China. .,Liaocheng High-Tech Biotechnology Co. Ltd, Liaocheng, 252059, China
| | - Min Wen
- Institute of Biopharmaceutical Research, Liaocheng University, Liaocheng 252059, China.
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17
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Cao Y, Li Q, Zhou A, Ke Z, Chen S, Li M, Gong Z, Wang Z, Wu X. Notoginsenoside R1 Reverses Abnormal Autophagy in Hippocampal Neurons of Mice With Sleep Deprivation Through Melatonin Receptor 1A. Front Pharmacol 2021; 12:719313. [PMID: 34603030 PMCID: PMC8481657 DOI: 10.3389/fphar.2021.719313] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 08/09/2021] [Indexed: 11/13/2022] Open
Abstract
Sleep deprivation (SD) may cause serious neural injury in the central nervous system, leading to impairment of learning and memory. Melatonin receptor 1A (MTNR1A) plays an important role in the sleep regulation upon activation by melatonin. The present study aimed to investigate if notoginsenoside R1 (NGR1), an active compound isolated from Panax notoginseng, could alleviate neural injury, thus improve impaired learning and memory of SD mice, as well as to explore its underlying action mechanism through modulating MTNR1A. Our results showed that NGR1 administration improved the impaired learning and memory of SD mice. NGR1 prevented the morphological damage and the accumulation of autophagosomes in the hippocampus of SD mice. At the molecular level, NGR1 reversed the expressions of proteins involved in autophagy and apoptosis, such as beclin-1, LC3B, p62, Bcl-2, Bax, and cleaved-caspase 3. Furthermore, the effect of NGR1 was found to be closely related with the MTNR1A-mediated PI3K/Akt/mTOR signaling pathway. On HT-22 cells induced by autophagy inducer rapamycin, NGR1 markedly attenuated excessive autophagy and apoptosis, and the alleviative effect was abolished by the MTNR1A inhibitor. Taken together, NGR1 was shown to alleviate the impaired learning and memory of SD mice, and its function might be exerted through reduction of excessive autophagy and apoptosis of hippocampal neurons by regulating the MTNR1A-mediated PI3K/Akt/mTOR signaling pathway.
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Affiliation(s)
- Yin Cao
- Key Laboratory of Xin'an Medicine, Ministry of Education, Anhui Province Key Laboratory of R&D of Chinese Medicine, Anhui University of Chinese Medicine, Hefei, China.,Shanghai Key Laboratory of Compound Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, China.,Academy of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Qinglin Li
- Key Laboratory of Xin'an Medicine, Ministry of Education, Anhui Province Key Laboratory of R&D of Chinese Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - An Zhou
- Key Laboratory of Xin'an Medicine, Ministry of Education, Anhui Province Key Laboratory of R&D of Chinese Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - Zunji Ke
- Academy of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Shengqi Chen
- Key Laboratory of Xin'an Medicine, Ministry of Education, Anhui Province Key Laboratory of R&D of Chinese Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - Mingrui Li
- Key Laboratory of Xin'an Medicine, Ministry of Education, Anhui Province Key Laboratory of R&D of Chinese Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - Zipeng Gong
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, China
| | - Zhengtao Wang
- Shanghai Key Laboratory of Compound Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xiaojun Wu
- Shanghai Key Laboratory of Compound Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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18
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Jiang N, Li YJ, Wang MD, Huang H, Chen S, Li Y, Qu L, Wang F, Liu X, Wang Q. The Cognitive-Enhancing Effects of Dendrobium nobile Lindl Extract in Sleep Deprivation-Induced Amnesic Mice. Front Psychiatry 2021; 12:596017. [PMID: 35126189 PMCID: PMC8808596 DOI: 10.3389/fpsyt.2021.596017] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 10/27/2021] [Indexed: 11/24/2022] Open
Abstract
Chronic sleep deprivation (SD) causes neurological and neurodegenerative dysfunction including learning and memory deficit. The orchid Dendrobium nobile Lindl (DNL), is widely used as a Yin tonic and medicinal food throughout Asia, and has many reported pharmacological effects. This study focused on the cognitive-enhancing effects of DNL in sleep deprivation-induced amnesia in mice and its biochemical mechanisms. Our results showed that the mice displayed significant cognitive deficits after 2-week SD while treatment with the extract of DNL prevented these impairments. In the novel object recognition and object location recognition tasks, a significant increase in the discrimination index was observed in DNL-treated (200 and 400 mg/kg) mice. In the MWM test, DNL (200 and 400 mg/kg) treatment shorten the prolongation of latency and increased the crossing numbers compared with SD mice. The biochemical analysis of brain tissue showed a decrease in NE, dismutase (T-SOD) and catalase (CAT) activity and an increase in 5-HT and malondialdehyde (MDA) concentration after the treatment with DNL in mice. Our findings indicated that DNL exerted a positive effect in preventing and improving cognitive impairment induced by SD, which may be mediated via the regulation of neurotransmitters and alleviation of oxidative stress.
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Affiliation(s)
- Ning Jiang
- Sino-Portugal TCM International Cooperation Center, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, China.,Research Center for Pharmacology and Toxicology, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yu-Jiao Li
- Sino-Portugal TCM International Cooperation Center, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, China
| | - Meng-di Wang
- Sino-Portugal TCM International Cooperation Center, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, China
| | - Hong Huang
- Research Center for Pharmacology and Toxicology, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Shanguang Chen
- National Key Laboratory of Human Factors Engineering/State Key Laboratory of Space Medicine Fundamentals and Application, Chinese Astronaut Research and Training Center, Beijing, China
| | - Yinghui Li
- National Key Laboratory of Human Factors Engineering/State Key Laboratory of Space Medicine Fundamentals and Application, Chinese Astronaut Research and Training Center, Beijing, China
| | - Lina Qu
- National Key Laboratory of Human Factors Engineering/State Key Laboratory of Space Medicine Fundamentals and Application, Chinese Astronaut Research and Training Center, Beijing, China
| | - Fengzhong Wang
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - Xinmin Liu
- Sino-Portugal TCM International Cooperation Center, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, China.,Research Center for Pharmacology and Toxicology, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Qiong Wang
- Sino-Portugal TCM International Cooperation Center, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, China.,Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
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