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Leung WKC, Yau SY, Yang Y, Kwok AWL, Wong EML, Cheung JKM, Shum EWC, Lam SC, Suen LKP. Effects of exercise interventions on brain-derived neurotrophic factor levels in overweight and obesity: A systematic review and meta-analysis. J Exerc Sci Fit 2024; 22:278-287. [PMID: 38618555 PMCID: PMC11015502 DOI: 10.1016/j.jesf.2024.04.001] [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: 08/21/2023] [Revised: 04/02/2024] [Accepted: 04/02/2024] [Indexed: 04/16/2024] Open
Abstract
Background /Objective. An explosion in global obesity epidemic poses threats to the healthcare system by provoking risks of many debilitating diseases, including cognitive dysfunction. Physical activity has been shown to alleviate the deleterious effects of obesity-associated cognitive deficits across the lifespan. Given the strong neuroprotective role of brain-derived neurotrophic factor (BDNF) and exercise training as a known modulator for its elevation, this systematic review sought to examine the strength of the association between exercise and BDNF levels in healthy people with overweight and obesity. Methods Six electronic databases (PubMed, MEDLINE, EMBASE, Web of Science, Ovid Nursing Database, and SPORTDiscus) were searched from their inceptions through December 2022. The primary outcome of interest was BDNF levels. Interventional studies (randomized and quasi-experimental) with English full text available were included. Risk of bias of the included studies was assessed using the Physiotherapy Evidence Database Scale. Data were extracted for meta-analyses by random-effects models. Results Thirteen studies (n = 750), of which 69.2% (9/13) had low risk of bias, were included. In the meta-analysis, exercise interventions had no significant effect on resting BDNF levels (standardized mean difference: -0.30, 95% CI -0.80 to 0.21, P = 0.25). Subgroup analyses also indicated no effects of age and types of control groups being compared on moderating the association. Conclusion To further inform the role of BDNF in obesity-related cognitive functioning, rigorous studies with larger samples of participants and raw data available were imperatively deserved.
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Affiliation(s)
- Wilson KC. Leung
- School of Nursing, Tung Wah College, 16/F, Ma Kam Chan Memorial Building, 31 Wylie Road, Kowloon, Hong Kong SAR, China
- Department of Sports Science and Physical Education, Faculty of Education, The Chinese University of Hong Kong, New Territories, Hong Kong SAR, China
| | - Suk-yu Yau
- Department of Rehabilitation Sciences, Faculty of Health and Social Sciences, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China
| | - Yijian Yang
- Department of Sports Science and Physical Education, Faculty of Education, The Chinese University of Hong Kong, New Territories, Hong Kong SAR, China
| | - Anthony WL. Kwok
- School of Medical and Health Sciences, Tung Wah College, 10/F, Ma Kam Chan Memorial Building, 31 Wylie Road, Kowloon, Hong Kong SAR, China
| | - Eliza ML. Wong
- School of Nursing, Tung Wah College, 16/F, Ma Kam Chan Memorial Building, 31 Wylie Road, Kowloon, Hong Kong SAR, China
| | - Jasmine KM. Cheung
- School of Nursing, Tung Wah College, 16/F, Ma Kam Chan Memorial Building, 31 Wylie Road, Kowloon, Hong Kong SAR, China
| | - Edward WC. Shum
- School of Nursing, Tung Wah College, 16/F, Ma Kam Chan Memorial Building, 31 Wylie Road, Kowloon, Hong Kong SAR, China
| | - Simon C. Lam
- School of Nursing, Tung Wah College, 16/F, Ma Kam Chan Memorial Building, 31 Wylie Road, Kowloon, Hong Kong SAR, China
| | - Lorna KP. Suen
- School of Nursing, Tung Wah College, 16/F, Ma Kam Chan Memorial Building, 31 Wylie Road, Kowloon, Hong Kong SAR, China
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Al-Beltagi M, Saeed NK, Bediwy AS, Bediwy EA, Elbeltagi R. Decoding the genetic landscape of autism: A comprehensive review. World J Clin Pediatr 2024; 13:98468. [DOI: 10.5409/wjcp.v13.i3.98468] [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: 06/26/2024] [Revised: 07/29/2024] [Accepted: 08/01/2024] [Indexed: 08/30/2024] Open
Abstract
BACKGROUND Autism spectrum disorder (ASD) is a complex neurodevelopmental condition characterized by heterogeneous symptoms and genetic underpinnings. Recent advancements in genetic and epigenetic research have provided insights into the intricate mechanisms contributing to ASD, influencing both diagnosis and therapeutic strategies.
AIM To explore the genetic architecture of ASD, elucidate mechanistic insights into genetic mutations, and examine gene-environment interactions.
METHODS A comprehensive systematic review was conducted, integrating findings from studies on genetic variations, epigenetic mechanisms (such as DNA methylation and histone modifications), and emerging technologies [including Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)-Cas9 and single-cell RNA sequencing]. Relevant articles were identified through systematic searches of databases such as PubMed and Google Scholar.
RESULTS Genetic studies have identified numerous risk genes and mutations associated with ASD, yet many cases remain unexplained by known factors, suggesting undiscovered genetic components. Mechanistic insights into how these genetic mutations impact neural development and brain connectivity are still evolving. Epigenetic modifications, particularly DNA methylation and non-coding RNAs, also play significant roles in ASD pathogenesis. Emerging technologies like CRISPR-Cas9 and advanced bioinformatics are advancing our understanding by enabling precise genetic editing and analysis of complex genomic data.
CONCLUSION Continued research into the genetic and epigenetic underpinnings of ASD is crucial for developing personalized and effective treatments. Collaborative efforts integrating multidisciplinary expertise and international collaborations are essential to address the complexity of ASD and translate genetic discoveries into clinical practice. Addressing unresolved questions and ethical considerations surrounding genetic research will pave the way for improved diagnostic tools and targeted therapies, ultimately enhancing outcomes for individuals affected by ASD.
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Affiliation(s)
- Mohammed Al-Beltagi
- Department of Pediatric, Faculty of Medicine, Tanta University, Alghrabia, Tanta 31511, Egypt
- Department of Pediatric, University Medical Center, King Abdulla Medical City, Arabian Gulf University, Manama 26671, Bahrain
| | - Nermin Kamal Saeed
- Medical Microbiology Section, Department of Pathology, Salmaniya Medical Complex, Ministry of Health, Kingdom of Bahrain, Manama 12, Bahrain
- Medical Microbiology Section, Department of Pathology, Irish Royal College of Surgeon, Muharraq, Busaiteen 15503, Bahrain
| | - Adel Salah Bediwy
- Department of Pulmonology, Faculty of Medicine, Tanta University, Alghrabia, Tanta 31527, Egypt
- Department of Pulmonology, University Medical Center, King Abdulla Medical City, Arabian Gulf University, Manama 26671, Bahrain
| | - Eman A Bediwy
- Internal Medicine, Faculty of Medicine, Tanta University, Algharbia, Tanta 31527, Egypt
| | - Reem Elbeltagi
- Department of Medicine, The Royal College of Surgeons in Ireland-Bahrain, Muharraq, Busiateen 15503, Bahrain
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El-Sayed SS, Ali SO, Ibrahim WW. Potential neuroprotective and autophagy-enhancing effects of alogliptin on lithium/pilocarpine-induced seizures in rats: Targeting the AMPK/SIRT1/Nrf2 axis. Life Sci 2024; 352:122917. [PMID: 39019341 DOI: 10.1016/j.lfs.2024.122917] [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: 04/27/2024] [Revised: 07/07/2024] [Accepted: 07/13/2024] [Indexed: 07/19/2024]
Abstract
BACKGROUND Status epilepticus (SE) as a severe neurodegenerative disease, greatly negatively affects people's health, and there is an urgent need for innovative treatments. The valuable neuroprotective effects of glucagon-like peptide-1 (GLP-1) in several neurodegenerative diseases have raised motivation to investigate the dipeptidyl peptidase-4 (DPP-4) inhibitor; alogliptin (ALO), an oral antidiabetic drug as a potential treatment for SE. ALO has shown promising neuroprotective effects in Alzheimer's and Parkinson's diseases, but its impact on SE has not yet been studied. AIM The present study aimed to explore the repurposing potential for ALO in a lithium/pilocarpine (Li/Pil)-induced SE model in rats. MAIN METHODS ALO (30 mg/kg/day) was administered via gavage for 14 days, and SE was subsequently induced in the rats using a single dose of Li/Pil (127/60 mg/kg), while levetiracetam was used as a standard antiepileptic drug. KEY FINDINGS The results showed that ALO reduced seizure severity and associated hippocampal neurodegeneration. ALO also increased γ-aminobutyric acid (GABA) levels, diminished glutamate spikes, and corrected glial fibrillary acidic protein (GFAP) changes. At the molecular level, ALO increased GLP-1 levels and activated its downstream signaling pathway, AMP-activated protein kinase (AMPK)/sirtuin-1 (SIRT1). ALO also dampened the brain's pro-oxidant response, curbed neuroinflammation, and counteracted hippocampal apoptosis affording neuroprotection. In addition, it activated autophagy as indicated by Beclin1 elevation. SIGNIFICANCE This study suggested that the neuroprotective properties and autophagy-enhancing effects of ALO make it a promising treatment for SE and can potentially be used as a management approach for this condition.
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Affiliation(s)
- Sarah S El-Sayed
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University.
| | - Shimaa O Ali
- Department of Biochemistry, Faculty of Pharmacy, Cairo University.
| | - Weam W Ibrahim
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University.
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4
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Park Y, Coccia MA, Prather AA, Epel ES. Maternal caregiving stress and metabolic health: Sexual activity as a potential buffer. Psychoneuroendocrinology 2024; 167:107068. [PMID: 38820717 DOI: 10.1016/j.psyneuen.2024.107068] [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: 11/22/2023] [Revised: 03/06/2024] [Accepted: 04/29/2024] [Indexed: 06/02/2024]
Abstract
Chronic stress lead to dysregulation of metabolic hormones, creating risk for obesity and type 2 diabetes. Based on previous work suggesting the potential for sexual activity to relieve psychological stress and reduce stress-related neuroendocrine activity, the present research explored sexual activity as a protective factor. We focused on chronic stress in the form of caregiving stress, comparing premenopausal mothers of a child with an autism spectrum disorder vs. a neurotypical child, in relation to metabolic hormones - insulin (and insulin resistance as assessed by HOMA), leptin, and ghrelin. Then, we explored the moderating role of sexual activity. Our results showed that high-stress mothers showed higher levels of insulin, insulin resistance, and lower levels of ghrelin compared to low-stress mothers. However, sexual activity modulated these associations such that among mothers who were sexually active (as coded from their daily diaries), no significant differences in these outcomes were observed between groups. This buffering effect of sexual activity was distinguishable from the buffering effect of physical activity and independent of global relationship satisfaction. Together, our findings provide novel evidence supporting the potential protective effects of sexual activity from chronic stress-related metabolic disease risk.
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Affiliation(s)
- Yoobin Park
- Department of Psychiatry and Behavioral Sciences, University of California, 675 18th Street, San Francisco, CA 94107, USA.
| | - Michael A Coccia
- Department of Psychiatry and Behavioral Sciences, University of California, 675 18th Street, San Francisco, CA 94107, USA
| | - Aric A Prather
- Department of Psychiatry and Behavioral Sciences, University of California, 675 18th Street, San Francisco, CA 94107, USA
| | - Elissa S Epel
- Department of Psychiatry and Behavioral Sciences, University of California, 675 18th Street, San Francisco, CA 94107, USA
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5
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Tait JL, Duckham RL, Rantalainen T, Milte CM, Main LC, Nowson CA, Sanders KM, Taaffe DR, Hill KD, Abbott G, Daly RM. Effects of a 6-month dual-task, power-based exercise program on cognitive function, neurological and inflammatory markers in older adults: secondary analysis of a cluster randomised controlled trial. GeroScience 2024:10.1007/s11357-024-01316-8. [PMID: 39198381 DOI: 10.1007/s11357-024-01316-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 08/11/2024] [Indexed: 09/01/2024] Open
Abstract
Functional power-based exercise training can improve physical performance in older adults and cognitive training can improve measures of cognition, but their combined effects on cognition and related risk factors (neurological and inflammatory markers) remains uncertain. This 6-month cluster randomised controlled trial evaluated the effectiveness of dual-task functional power training (DT-FPT) on cognition and circulating neurological and inflammatory markers in older adults at increased falls risk, and whether intervention responses varied by apolipoprotein-E (ApoE) and brain derived neurotrophic factor (BDNF) polymorphisms. Three hundred residents aged ≥ 65 years at increased falls risk residing in 22 independent-living retirement communities, were randomised by village, to DT-FPT (n = 156, 11 villages) involving a multi-component power-based training program performed simultaneously with cognitive and/or motor tasks (45-60 min, 2/week), or a usual care control (CON) group (n = 144, 11 villages). Cognition (computerized CogState battery), inflammatory cytokines, BDNF, insulin-like growth factor-1, vascular endothelial growth factor, amyloid β (1-40) and (1-42) were assessed at baseline and 6-months. Overall, 233 (78%) participants completed the intervention and adherence averaged 50.1%. DT-FPT led to a net 0.18-0.20 SD benefit versus CON in psychomotor ability/attention and reaction time/attention (both P < 0.05). There were no significant intervention effects on circulating markers, except for a net 10.5% benefit in amyloid β (1-40) in DT-FPT versus CON (P < 0.05). Responses were not influenced by APOE or BDNF genotype. In conclusion, DT-FPT in older adults at increased falls risk can provide some cognitive benefits, but these were not related to corresponding changes in inflammatory or neurological markers or influenced by genotype. Australian New Zealand Clinical Trials Registry (ACTRN12613001161718). http://www.anzctr.org.au/ This project was funded by a grant from the National Health and Medical Research Council (NHMRC) Project (APP1046267).
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Affiliation(s)
- Jamie L Tait
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia.
| | - Rachel L Duckham
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia
- Australian Institute for Musculoskeletal Science (AIMSS), Department of Medicine-Western Health, the University of Melbourne, Melbourne, VIC, Australia
| | - Timo Rantalainen
- Faculty of Sport and Health Sciences and Gerontology Research Center, University of Jyväskylä, Jyväskylä, Finland
| | - Catherine M Milte
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia
| | - Luana C Main
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia
| | - Caryl A Nowson
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia
| | - Kerrie M Sanders
- Department of Medicine, Western Health, the University of Melbourne, Melbourne, VIC, Australia
| | - Dennis R Taaffe
- Exercise Medicine Research Institute and School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia
| | - Keith D Hill
- Rehabilitation Ageing and Independent Living (RAIL) Research Centre, Monash University, Melbourne, VIC, Australia
| | - Gavin Abbott
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia
| | - Robin M Daly
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia
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6
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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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Brouwer A, Carhart‐Harris RL, Raison CL. Psychotomimetic compensation versus sensitization. Pharmacol Res Perspect 2024; 12:e1217. [PMID: 38923845 PMCID: PMC11194300 DOI: 10.1002/prp2.1217] [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: 04/11/2024] [Accepted: 05/08/2024] [Indexed: 06/28/2024] Open
Abstract
It is a paradox that psychotomimetic drugs can relieve symptoms that increase risk of and cooccur with psychosis, such as attention and motivational deficits (e.g., amphetamines), pain (e.g., cannabis) and symptoms of depression (e.g., psychedelics, dissociatives). We introduce the ideas of psychotomimetic compensation and psychotomimetic sensitization to explain this paradox. Psychotomimetic compensation refers to a short-term stressor or drug-induced compensation against stress that is facilitated by engagement of neurotransmitter/modulator systems (endocannabinoid, serotonergic, glutamatergic and dopaminergic) that mediate the effects of common psychotomimetic drugs. Psychotomimetic sensitization occurs after repeated exposure to stress and/or drugs and is evidenced by the gradual intensification and increase of psychotic-like experiences over time. Theoretical and practical implications of this model are discussed.
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Affiliation(s)
- Ari Brouwer
- Department of Human Development and Family Studies, School of Human EcologyUniversity of Wisconsin‐MadisonMadisonWisconsinUSA
| | - Robin L. Carhart‐Harris
- Department of Neurology and PsychiatryUniversity of California San FranciscoSan FranciscoCaliforniaUSA
| | - Charles L. Raison
- Department of Psychiatry, School of Medicine and Public HealthUniversity of Wisconsin‐MadisonMadisonWisconsinUSA
- Vail Health Behavioral Health Innovation CenterVailColoradoUSA
- Center for the Study of Human HealthEmory UniversityAtlantaGeorgiaUSA
- Department of Spiritual HealthEmory University Woodruff Health Sciences CenterAtlantaGeorgiaUSA
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Gomez-Pinilla F, Thapak P. Exercise epigenetics is fueled by cell bioenergetics: Supporting role on brain plasticity and cognition. Free Radic Biol Med 2024; 220:43-55. [PMID: 38677488 PMCID: PMC11144461 DOI: 10.1016/j.freeradbiomed.2024.04.237] [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: 02/29/2024] [Revised: 04/04/2024] [Accepted: 04/24/2024] [Indexed: 04/29/2024]
Abstract
Exercise has the unique aptitude to benefit overall health of body and brain. Evidence indicates that the effects of exercise can be saved in the epigenome for considerable time to elevate the threshold for various diseases. The action of exercise on epigenetic regulation seems central to building an "epigenetic memory" to influence long-term brain function and behavior. As an intrinsic bioenergetic process, exercise engages the function of the mitochondria and redox pathways to impinge upon molecular mechanisms that regulate synaptic plasticity and learning and memory. We discuss how the action of exercise uses mechanisms of bioenergetics to support a "epigenetic memory" with long-term implications for neural and behavioral plasticity. This information is crucial for directing the power of exercise to reduce the burden of neurological and psychiatric disorders.
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Affiliation(s)
- Fernando Gomez-Pinilla
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA, 90095, USA; Department of Neurosurgery, UCLA Brain Injury Research Center, University of California, Los Angeles, Los Angeles, CA, 90095, USA.
| | - Pavan Thapak
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA, 90095, USA
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9
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Martins LA, Schiavo A, Paz LV, Xavier LL, Mestriner RG. Neural underpinnings of fine motor skills under stress and anxiety: A review. Physiol Behav 2024; 282:114593. [PMID: 38782244 DOI: 10.1016/j.physbeh.2024.114593] [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: 03/05/2024] [Revised: 05/17/2024] [Accepted: 05/21/2024] [Indexed: 05/25/2024]
Abstract
This review offers a comprehensive examination of how stress and anxiety affect motor behavior, particularly focusing on fine motor skills and gait adaptability. We explore the role of several neurochemicals, including brain-derived neurotrophic factor (BDNF) and dopamine, in modulating neural plasticity and motor control under these affective states. The review highlights the importance of developing therapeutic strategies that enhance motor performance by leveraging the interactions between key neurochemicals. Additionally, we investigate the complex interplay between emotional-cognitive states and sensorimotor behaviors, showing how stress and anxiety disrupt neural integration, leading to impairments in skilled movements and negatively impacting quality of life. Synthesizing evidence from human and rodent studies, we provide a detailed understanding of the relationships among stress, anxiety, and motor behavior. Our findings reveal neurophysiological pathways, behavioral outcomes, and potential therapeutic targets, emphasizing the intricate connections between neurobiological mechanisms, environmental factors, and motor performance.
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Affiliation(s)
- Lucas Athaydes Martins
- Pontifical Catholic University of Rio Grande do Sul (PUCRS). Graduate Program in Biomedical Gerontology, Av. Ipiranga, 6681, Porto Alegre, Brazil; Pontifical Catholic University of Rio Grande do Sul (PUCRS). Neuroscience, Motor Behavior, and Rehabilitation Research Group (NECORE-CNPq), Av. Ipiranga, 6681, Porto Alegre, Brazil
| | - Aniuska Schiavo
- Pontifical Catholic University of Rio Grande do Sul (PUCRS). Graduate Program in Biomedical Gerontology, Av. Ipiranga, 6681, Porto Alegre, Brazil; Pontifical Catholic University of Rio Grande do Sul (PUCRS). Neuroscience, Motor Behavior, and Rehabilitation Research Group (NECORE-CNPq), Av. Ipiranga, 6681, Porto Alegre, Brazil
| | - Lisiê Valéria Paz
- Pontifical Catholic University of Rio Grande do Sul (PUCRS). Graduate Program in Cellular and Molecular Biology, Av. Ipiranga, 6681, Porto Alegre, Brazil
| | - Léder Leal Xavier
- Pontifical Catholic University of Rio Grande do Sul (PUCRS). Neuroscience, Motor Behavior, and Rehabilitation Research Group (NECORE-CNPq), Av. Ipiranga, 6681, Porto Alegre, Brazil; Pontifical Catholic University of Rio Grande do Sul (PUCRS). Graduate Program in Cellular and Molecular Biology, Av. Ipiranga, 6681, Porto Alegre, Brazil
| | - Régis Gemerasca Mestriner
- Pontifical Catholic University of Rio Grande do Sul (PUCRS). Graduate Program in Biomedical Gerontology, Av. Ipiranga, 6681, Porto Alegre, Brazil; Pontifical Catholic University of Rio Grande do Sul (PUCRS). Neuroscience, Motor Behavior, and Rehabilitation Research Group (NECORE-CNPq), Av. Ipiranga, 6681, Porto Alegre, Brazil; Pontifical Catholic University of Rio Grande do Sul (PUCRS). Graduate Program in Cellular and Molecular Biology, Av. Ipiranga, 6681, Porto Alegre, Brazil.
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10
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Maiworm M. The relevance of BDNF for neuroprotection and neuroplasticity in multiple sclerosis. Front Neurol 2024; 15:1385042. [PMID: 39148705 PMCID: PMC11325594 DOI: 10.3389/fneur.2024.1385042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Accepted: 06/24/2024] [Indexed: 08/17/2024] Open
Abstract
Background Neuroplasticity as a mechanism to overcome central nervous system injury resulting from different neurological diseases has gained increasing attention in recent years. However, deficiency of these repair mechanisms leads to the accumulation of neuronal damage and therefore long-term disability. To date, the mechanisms by which remyelination occurs and why the extent of remyelination differs interindividually between multiple sclerosis patients regardless of the disease course are unclear. A member of the neurotrophins family, the brain-derived neurotrophic factor (BDNF) has received particular attention in this context as it is thought to play a central role in remyelination and thus neuroplasticity, neuroprotection, and memory. Objective To analyse the current literature regarding BDNF in different areas of multiple sclerosis and to provide an overview of the current state of knowledge in this field. Conclusion To date, studies assessing the role of BDNF in patients with multiple sclerosis remain inconclusive. However, there is emerging evidence for a beneficial effect of BDNF in multiple sclerosis, as studies reporting positive effects on clinical as well as MRI characteristics outweighed studies assuming detrimental effects of BDNF. Furthermore, studies regarding the Val66Met polymorphism have not conclusively determined whether this is a protective or harmful factor in multiple sclerosis, but again most studies hypothesized a protective effect through modulation of BDNF secretion and anti-inflammatory effects with different effects in healthy controls and patients with multiple sclerosis, possibly due to the pro-inflammatory milieu in patients with multiple sclerosis. Further studies with larger cohorts and longitudinal follow-ups are needed to improve our understanding of the effects of BDNF in the central nervous system, especially in the context of multiple sclerosis.
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Affiliation(s)
- Michelle Maiworm
- Department of Neurology, University Hospital Frankfurt, Frankfurt, Germany
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11
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Mehran HS, Nady S, Kassab RB, Ahmed-Farid OA, El-Hennamy RE. Recombinant Interleukin - 2 2 Immunotherapy Ameliorates Inflammation and Promotes the Release of Monoamine Neurotransmitters in the Gut-Brain Axis of Schistosoma mansoni-Infected Mice. J Neuroimmune Pharmacol 2024; 19:37. [PMID: 39052165 DOI: 10.1007/s11481-024-10133-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Accepted: 06/08/2024] [Indexed: 07/27/2024]
Abstract
Recombinant interleukin-22 (rIL-22) has been reported as a protective agent in murine models of diseases driven by epithelial injury. Parasites have a circadian rhythm and their sensitivity to a certain drug may vary during the day. Therefore, this work aimed to investigate the effect of rIL-22 administration at different times of the day on the inflammation, oxidative status, and neurotransmitter release in the gut-brain axis of the Schistosoma mansoni-infected mice. Sixty male BALB/c mice aged six weeks weighing 25-30 g were divided into a control group (injected intraperitoneally with PBS), mice infected with 80 ± 10 cercariae of S. mansoni (infected group) then injected intraperitoneally with PBS, and rIL-22 treated groups. rIL-22 was administrated intraperitoneally (400 ng/kg) either at the onset or offset of the light phase for 14 days. IL-22 administration reduced the levels of IL-1β, tumor necrosis factor-alpha (TNF-α), nuclear factor kappa beta (NF-κβ), and enhanced the production of IL-22 and IL-17. The treatment with IL-22 increased glutathione (GSH) and reduced malondialdehyde (MDA) and nitric oxide (NO) levels both in the ileum and brain. The B-cell lymphoma 2 (BCL2) protein level in the ileum was diminished after IL-22 administration. Brain-derived neurotrophic factor (BDNF) and neurotransmitter release (serotonin, 5HT, norepinephrine, NE, dopamine, DA, Glutamate, Glu, and -amino butyric acid, GABA) were improved by rIL-22. In conclusion, rIL-22 showed promising immunotherapy for inflammation, oxidative damage, and neuropathological signs associated with schistosomiasis. The efficacy of IL-22 increased significantly upon its administration at the time of light offset.
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Affiliation(s)
- Heba S Mehran
- Zoology and Entomology Department, Faculty of Science, Helwan University, Cairo, Egypt
| | - Soad Nady
- Zoology and Entomology Department, Faculty of Science, Helwan University, Cairo, Egypt
| | - Rami B Kassab
- Zoology and Entomology Department, Faculty of Science, Helwan University, Cairo, Egypt
| | | | - Rehab E El-Hennamy
- Zoology and Entomology Department, Faculty of Science, Helwan University, Cairo, Egypt.
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12
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Shamsnia HS, Peyrovinasab A, Amirlou D, Sirouskabiri S, Rostamian F, Basiri N, Shalmani LM, Hashemi M, Hushmandi K, Abdolghaffari AH. BDNF-TrkB Signaling Pathway in Spinal Cord Injury: Insights and Implications. Mol Neurobiol 2024:10.1007/s12035-024-04381-4. [PMID: 39046702 DOI: 10.1007/s12035-024-04381-4] [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: 03/19/2024] [Accepted: 07/18/2024] [Indexed: 07/25/2024]
Abstract
Spinal cord injury (SCI) is a neurodegenerative disorder that has critical impact on patient's life expectance and life span, and this disorder also leads to negative socioeconomic features. SCI is defined as a firm collision to the spinal cord which leads to the fracture and the dislocation of vertebrae. The current available treatment is surgery. However, it cannot fully treat SCI, and many consequences remain after the surgery. Accordingly, finding new therapeutics is critical. BDNF-TrkB signaling is a vital signaling in neuronal differentiation, survival, overgrowth, synaptic plasticity, etc. Hence, many studies evaluate its impact on various neurodegenerative disorders. There are several studies evaluating this signaling in SCI, and they show promising outcomes. It was shown that various exercises, chemical interventions, etc. had significant positive impact on SCI by affecting BDNF-TrkB signaling pathway. This study aims to accumulate and evaluate these data and inspect whether this signaling is effective or not.
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Affiliation(s)
- Hedieh Sadat Shamsnia
- Department of Toxicology & Pharmacology, Faculty of Pharmacy, Tehran Medical Sciences, Islamic Azad University, No. 99, Yakhchal, Gholhak, Shariati St, P. O. Box: 19419-33111, Tehran, Iran
- GI Pharmacology Interest Group (GPIG), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Amirreza Peyrovinasab
- Department of Toxicology & Pharmacology, Faculty of Pharmacy, Tehran Medical Sciences, Islamic Azad University, No. 99, Yakhchal, Gholhak, Shariati St, P. O. Box: 19419-33111, Tehran, Iran
- GI Pharmacology Interest Group (GPIG), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Dorsa Amirlou
- Department of Toxicology & Pharmacology, Faculty of Pharmacy, Tehran Medical Sciences, Islamic Azad University, No. 99, Yakhchal, Gholhak, Shariati St, P. O. Box: 19419-33111, Tehran, Iran
- GI Pharmacology Interest Group (GPIG), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Shirin Sirouskabiri
- Department of Toxicology & Pharmacology, Faculty of Pharmacy, Tehran Medical Sciences, Islamic Azad University, No. 99, Yakhchal, Gholhak, Shariati St, P. O. Box: 19419-33111, Tehran, Iran
- GI Pharmacology Interest Group (GPIG), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Fatemeh Rostamian
- Department of Toxicology & Pharmacology, Faculty of Pharmacy, Tehran Medical Sciences, Islamic Azad University, No. 99, Yakhchal, Gholhak, Shariati St, P. O. Box: 19419-33111, Tehran, Iran
- GI Pharmacology Interest Group (GPIG), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Nasim Basiri
- Department of Toxicology & Pharmacology, Faculty of Pharmacy, Tehran Medical Sciences, Islamic Azad University, No. 99, Yakhchal, Gholhak, Shariati St, P. O. Box: 19419-33111, Tehran, Iran
- GI Pharmacology Interest Group (GPIG), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Leila Mohaghegh Shalmani
- Department of Toxicology & Pharmacology, Faculty of Pharmacy, Tehran Medical Sciences, Islamic Azad University, No. 99, Yakhchal, Gholhak, Shariati St, P. O. Box: 19419-33111, Tehran, Iran.
- GI Pharmacology Interest Group (GPIG), Universal Scientific Education and Research Network (USERN), Tehran, Iran.
| | - Mehrdad Hashemi
- Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
| | | | - Amir Hossein Abdolghaffari
- Department of Toxicology & Pharmacology, Faculty of Pharmacy, Tehran Medical Sciences, Islamic Azad University, No. 99, Yakhchal, Gholhak, Shariati St, P. O. Box: 19419-33111, Tehran, Iran.
- GI Pharmacology Interest Group (GPIG), Universal Scientific Education and Research Network (USERN), Tehran, Iran.
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13
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Wang F, Liu Y, Li Y, Yang X, Zhao J, Yang B, Tang D, Zhang C, He Z, Ming D, Zhu X. Combining Network Pharmacology and Experimental Verification to Ascertain the Mechanism of Action of Asparagus officinalis Against the Brain Damage Caused by Fluorosis. ENVIRONMENTAL TOXICOLOGY 2024. [PMID: 39041630 DOI: 10.1002/tox.24382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 05/29/2024] [Accepted: 06/04/2024] [Indexed: 07/24/2024]
Abstract
Asparagus officinalis (ASP) has antioxidation, anti-inflammatory, antiaging, and immune system-enhancing effects. We explored the preventive and therapeutic consequences of ASP on the brain damage elicited by fluorosis through network pharmacology and in vivo experimental validation. We ascertained the pharmaceutically active ingredients and drug targets of ASP from the Traditional Chinese Medicine Systems Pharmacology database, predicted the disease targets of fluorosis-induced brain injury using GeneCards and Online Mendelian Inheritance in Man databases, obtained target protein-protein interaction networks in the Search Tool for the Retrieval of Interacting Genes/Proteins database, used Cytoscape to obtain key targets and active ingredients, and conducted enrichment analyses of key targets in the Database for Annotation, Visualization and Integrated Discovery. Enrichment analyses showed that "mitogen-activated protein kinase" (MAPK), "phosphoinositide 3-kinase/protein kinase B" (PI3K-Akt), "nuclear factor-kappa B" (NF-κB), and the "neurotrophin signaling pathway" were the most enriched biological processes and signaling pathways. ASP could alleviate fluorosis-based injury, improve brain-tissue damage, increase urinary fluoride content, and improve oxidation levels and inflammatory-factor levels in the body. ASP could also reduce dental fluorosis, bone damage, fluoride concentrations in blood and bone, and accumulation of lipid peroxide. Upon ASP treatment, expression of silent information regulator (SIRT)1, brain-derived neurotrophic factor (BDNF), tropomyosin receptor kinase B (TrkB), MAPK, NF-κB, PI3K, Akt, and B-cell lymphoma-2 in rat brain tissue increased gradually, whereas that of Bax, caspase-3, and p53 decreased gradually. We demonstrated that ASP could regulate the brain damage caused by fluorosis through the SIRT1/BDNF/TrkB signaling pathway, and reported the possible part played by ASP in preventing and treating fluorosis.
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Affiliation(s)
- Feiqing Wang
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
- Clinical Research Center, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou, China
| | - Yang Liu
- Clinical Research Center, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou, China
| | - Yanju Li
- Department of Hematology, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China
| | - Xu Yang
- Clinical Research Center, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou, China
| | - Jianing Zhao
- Clinical Research Center, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou, China
| | - Bo Yang
- Clinical Research Center, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou, China
| | - Dongxin Tang
- Clinical Research Center, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou, China
| | - Chike Zhang
- Department of Hematology, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China
| | - Zhixu He
- National & Guizhou Joint Engineering Laboratory for Cell Engineering and Biomedicine Technique, Guiyang, Guizhou, China
| | - Dong Ming
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
| | - Xiaodong Zhu
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
- Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China
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14
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Fu L, Ren J, Lei X, Wang Y, Chen X, Zhang R, Li Q, Teng X, Guo C, Wu Z, Yu L, Wang D, Chen Y, Qin J, Yuan A, Zhang C. Association of anhedonia with brain-derived neurotrophic factor and interleukin-10 in major depressive disorder. Prog Neuropsychopharmacol Biol Psychiatry 2024; 133:111023. [PMID: 38701878 DOI: 10.1016/j.pnpbp.2024.111023] [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: 02/20/2024] [Revised: 04/19/2024] [Accepted: 04/30/2024] [Indexed: 05/05/2024]
Abstract
BACKGROUND Anhedonia, a core symptom of major depressive disorder (MDD), manifests in two forms: anticipatory and consummatory, reflecting a diminished capacity to anticipate or enjoy pleasurable activities. Prior studies suggest that brain-derived neurotrophic factor (BDNF) and interleukin-10 (IL-10) may play key roles in the emergence of anhedonia in MDD. The specific relationships between these biomarkers and the two forms of anhedonia remain unclear. This study investigated the potential links between BDNF, IL-10, and both forms of anhedonia in MDD patients. METHODS This study included 43 participants diagnosed with MDD and 58 healthy controls. It involved detailed assessments of depression and anxiety levels, anticipatory and consummatory pleasure, cognitive functions, and a broad spectrum of plasma biomarkers, such as C-reactive protein, various interleukins, and BDNF. Using partial correlation, variables related to pleasant experiences were identified. Stepwise multiple linear regression analysis was applied to pinpoint the independent predictors of anhedonia in the MDD group. RESULTS Demographically, both groups were comparable in terms of age, sex, body mass index, educational year, and marital status. Individuals with MDD displayed markedly reduced levels of anticipatory and consummatory pleasure, higher anxiety, and depression scores compared to healthy controls. Additionally, cognitive performance was notably poorer in the MDD group. These patients also had lower plasma diamine oxidase levels. Analysis linked anhedonia to impaired delayed memory. Regression results identified IL-10 and BDNF as independent predictors of anticipatory and consummatory anhedonia, respectively. CONCLUSION These findings demonstrate that anticipatory and consummatory anhedonia are influenced by independent factors, thereby providing critical insights into the distinct neuroimmunological mechanisms that underlie various forms of anhedonia. Clinicl Trial Registration Number: NCT03790085.
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Affiliation(s)
- Lirong Fu
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Juanjuan Ren
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaoxia Lei
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yewei Wang
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaochang Chen
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Rong Zhang
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qingyi Li
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xinyue Teng
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chaoyue Guo
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zenan Wu
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lingfang Yu
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Dandan Wang
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yan Chen
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jinmei Qin
- Mental Health Center of Xuhui District, Shanghai, China.
| | - Aihua Yuan
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Chen Zhang
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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15
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Liu B, Liu Y, Li S, Chen P, Zhang J, Feng L. Depletion of placental brain-derived neurotrophic factor (BDNF) is attributed to premature ovarian insufficiency (POI) in mice offspring. J Ovarian Res 2024; 17:141. [PMID: 38982490 PMCID: PMC11232340 DOI: 10.1186/s13048-024-01467-4] [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: 12/11/2023] [Accepted: 06/29/2024] [Indexed: 07/11/2024] Open
Abstract
INTRODUCTION Premature ovarian insufficiency (POI) is one of the causes of female infertility. Unexplained POI is increasingly affecting women in their reproductive years. However, the etiology of POI is diverse and remains elusive. We and others have shown that brain-derived neurotrophic factor (BDNF) plays an important role in adult ovarian function. Here, we report on a novel role of BDNF in the Developmental Origins of POI. METHODS Placental BDNF knockout mice were created using CRISPR/CAS9. Homozygous knockout (cKO(HO)) mice didn't survive, while heterozygous knockout (cKO(HE)) mice did. BDNF reduction in cKO(HE) mice was confirmed via immunohistochemistry and Western blots. Ovaries were collected from cKO(HE) mice at various ages, analyzing ovarian metrics, FSH expression, and litter sizes. In one-month-old mice, oocyte numbers were assessed using super-ovulation, and oocyte gene expression was analyzed with smart RNAseq. Ovaries of P7 mice were studied with SEM, and gene expression was confirmed with RT-qPCR. Alkaline phosphatase staining at E11.5 and immunofluorescence for cyclinD1 assessed germ cell number and cell proliferation. RESULTS cKO(HE) mice had decreased ovarian function and litter size in adulthood. They were insensitive to ovulation induction drugs manifested by lower oocyte release after superovulation in one-month-old cKO(HE) mice. The transcriptome and SEM results indicate that mitochondria-mediated cell death or aging might occur in cKO(HE) ovaries. Decreased placental BDNF led to diminished primordial germ cell proliferation at E11.5 and ovarian reserve which may underlie POI in adulthood. CONCLUSION The current results showed decreased placental BDNF diminished primordial germ cell proliferation in female fetuses during pregnancy and POI in adulthood. Our findings can provide insights into understanding the underlying mechanisms of POI.
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Affiliation(s)
- Bin Liu
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, School of Medicine, Xinhua Hospital, Shanghai Jiao Tong University, Shanghai, China
- Department of Reproduction, School of Medicine, Xinhua Hospital, Shanghai Jiao-Tong University, Shanghai, China
| | - Yongjie Liu
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, School of Medicine, Xinhua Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Shuman Li
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, School of Medicine, Xinhua Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Pingping Chen
- Department of Reproduction, School of Medicine, Xinhua Hospital, Shanghai Jiao-Tong University, Shanghai, China
| | - Jun Zhang
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, School of Medicine, Xinhua Hospital, Shanghai Jiao Tong University, Shanghai, China.
| | - Liping Feng
- Department of Obstetrics and Gynaecology, Duke University, Durham, NC, USA.
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16
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Ortega A, Chernicki B, Ou G, Parmar MS. From Lab Bench to Hope: Emerging Gene Therapies in Clinical Trials for Alzheimer's Disease. Mol Neurobiol 2024:10.1007/s12035-024-04285-3. [PMID: 38958888 DOI: 10.1007/s12035-024-04285-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 06/05/2024] [Indexed: 07/04/2024]
Abstract
Alzheimer's disease is a progressive neurodegenerative disorder that affects memory and cognitive abilities, affecting millions of people around the world. Current treatments focus on the management of symptoms, as no effective therapy has been approved to modify the underlying disease process. Gene therapy is a promising approach that can offer disease-modifying treatment for AD, targeting various aspects of the pathophysiology of the disease. This review presents a comprehensive overview of the current state of gene therapy research for AD, with a specific focus on clinical trials and preclinical studies that have used nerve growth factor (NGF), brain-derived neurotrophic factor (BDNF), apolipoprotein E2 (APOE2), and human telomerase reverse transcriptase (hTERT) as therapeutic gene therapy approaches. These gene targets have shown potential to alleviate the neuropathology of AD in animal studies and have demonstrated feasibility and safety in non-human primates. Despite the failure of the NGF gene therapy approach in clinical trials, we have reviewed and highlighted the reported findings and evaluations from the trials. Furthermore, the review included the conclusions of postmortem brain tissue analysis of AD patients who received NGF gene therapy. The goal is to learn from the failed trials and improve the approach in the future. Although gene therapy shows promise, it faces several challenges and limitations, including optimizing gene delivery methods, enhancing safety and efficacy profiles, and determining long-term results. This review contributes to the growing body of literature on innovative treatments for AD and highlights the need for more research and development to advance gene therapy as a viable treatment option for AD.
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Affiliation(s)
- Angelica Ortega
- Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Clearwater, FL, USA
| | - Brendan Chernicki
- Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Clearwater, FL, USA
| | - Grace Ou
- College of Arts and Sciences, Cornell University, Ithaca, NY, USA
| | - Mayur S Parmar
- Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Clearwater, FL, USA.
- Department of Foundational Sciences, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Clearwater, FL, USA.
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17
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Mruczyk K, Molska M, Wójciak RW, Śliwicka E, Cisek-Woźniak A. Associated between cognition, brain-derived neurotrophic factor (BDNF) and macronutrients in normal and overweight postmenopausal women. Exp Gerontol 2024; 192:112449. [PMID: 38704127 DOI: 10.1016/j.exger.2024.112449] [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: 04/26/2024] [Accepted: 05/01/2024] [Indexed: 05/06/2024]
Abstract
BDNF is a protein associated with cognitive dysfunction. The aim of the study was to determine the relationship between BDNF and cognitive functions and the intake of macronutrients in postmenopausal women. For this purpose, 72 postmenopausal women were recruited to the study and divided into two subgroups: overweight/obese and normal weight. Using a 3-day food record, nutrition was assessed. The markers studied were the level of BDNF, which was determined from the venous blood serum collected from women, and selected cognitive functions. We observed that in the normal BMI group macronutrient intake was correlated with BDNF levels, and only total fat and carbohydrate intake were inversely correlated with BDNF levels. There were inverse correlations observed among selected parameters of cognitive functioning. In the Ov/Ob group, macronutrient intake correlated with the BDNF level for several variables, e.g. vice versa with total protein, fat and carbohydrate intake, as well as dietary cholesterol. It has also been noted that there are links between the BDNF factor and excessive body weight.
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Affiliation(s)
- Kinga Mruczyk
- Department of Dietetics, Faculty of Physical Culture in Gorzów Wlkp., Poznan University of Physical Education, Estkowskiego 13, 66-400 Gorzów Wielkopolski, Poland.
| | - Marta Molska
- Department of Dietetics, Faculty of Physical Culture in Gorzów Wlkp., Poznan University of Physical Education, Estkowskiego 13, 66-400 Gorzów Wielkopolski, Poland.
| | - Rafał W Wójciak
- Department of Clinical Psychology, University of Medical Sciences, Poznań, Poland.
| | - Ewa Śliwicka
- Department of Physiology and Biochemistry, Poznan University of Physical Education, Królowej Jadwigi 27/39, 61-871, Poznań, Poland.
| | - Angelika Cisek-Woźniak
- Department of Dietetics, Faculty of Physical Culture in Gorzów Wlkp., Poznan University of Physical Education, Estkowskiego 13, 66-400 Gorzów Wielkopolski, Poland.
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18
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Goldfield GS, Cameron JD, Sigal RJ, Kenny GP, Prud'homme D, Ngu M, Alberga AS, Doucette S, Goldfield DB, Tulloch H, Thai H, Simas KR, Walsh J. The BDNF Val66Met polymorphism and health-related quality of life in youth with obesity. Physiol Rep 2024; 12:e16140. [PMID: 38997217 PMCID: PMC11245332 DOI: 10.14814/phy2.16140] [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: 03/05/2024] [Revised: 06/24/2024] [Accepted: 06/28/2024] [Indexed: 07/14/2024] Open
Abstract
The brain derived-neurotrophic factor (BDNF) Val66Met polymorphism causes functional changes in BDNF, and is associated with obesity and some psychiatric disorders, but its relationship to health-related quality of life (HRQoL) remains unknown. This study examined, in youth with obesity, whether carriers of the BDNF Val66met polymorphism Met-alleles (A/A or G/A) differed from noncarriers (G/G) on HRQoL. The participants were 187 adolescents with obesity. Ninety-nine youth were carriers of the homozygous Val/Val (G/G) alleles, and 88 were carriers of the Val/Met (G/A) or Met/Met (A/A) alleles. Blood samples were drawn in the morning after an overnight fast for genotyping. HRQoL was measured using the Pediatric-Quality of Life core version. Compared to carriers of the Val66Met Val (G/G) alleles, carriers of the Met-Alleles reported significantly higher physical -HRQoL (p = 0.02), school-related HRQoL, (p = 0.05), social-related HRQoL (p = 0.05), and total HRQoL (p = 0.03), and a trend for Psychosocial-HRQoL. Research is needed to confirm our findings and determine whether carriers of the BDNF Val66Met homozygous Val (G/G) alleles may be at risk of diminished HRQoL, information that can influence interventions in a high-risk population of inactive youth with obesity.
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Affiliation(s)
- Gary S Goldfield
- Healthy Active Living and Obesity Research Group, Children's Hospital of Eastern Ontario Research Institute, Ottawa, Ontario, Canada
- Department of Pediatrics, University of Ottawa, Ottawa, Ontario, Canada
- School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada
- Department of Psychology, Carleton University, Ottawa, Ontario, Canada
| | - Jameason D Cameron
- Department of Pharmacy, Children's Hospital of Eastern Ontario, Ottawa, Ontario, Canada
| | - Ronald J Sigal
- School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada
- Department of Medicine, Cardiac Sciences and Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Glen P Kenny
- School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada
- Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Denis Prud'homme
- School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada
- University of Moncton, Moncton, New Brunswick, Canada
| | - Mathew Ngu
- School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada
| | - Angela S Alberga
- Department of Exercise Science, Concordia University, Montreal, Quebec, Canada
| | - Steve Doucette
- Department of Community Health and Epidemiology, Dalhousie University, Halifax, Nova Scotia, Canada
| | | | - Heather Tulloch
- Division of Cardiac Prevention and Rehabilitation, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Helen Thai
- Healthy Active Living and Obesity Research Group, Children's Hospital of Eastern Ontario Research Institute, Ottawa, Ontario, Canada
- Department of Psychology, Carleton University, Ottawa, Ontario, Canada
- Department of Psychology, McGill University, Montreal, Quebec, Canada
| | - Kevin R Simas
- Healthy Active Living and Obesity Research Group, Children's Hospital of Eastern Ontario Research Institute, Ottawa, Ontario, Canada
- Department of Neuroscience, Carleton University, Ottawa, Ontario, Canada
| | - Jeremy Walsh
- Department of Kinesiology, McMaster University, Hamilton, Ontario, Canada
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19
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Shoghi E, Safari T, Parsi-Moud A, Mirzaei I, Rad NS, Chahkandi M. Effects of moderate intensity training and lithium on spatial learning and memory in a rat model: The role of SIRT3 and PGC1-α expression levels and brain-derived neurotropic factor. Exp Gerontol 2024; 191:112442. [PMID: 38663491 DOI: 10.1016/j.exger.2024.112442] [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: 02/27/2024] [Revised: 04/07/2024] [Accepted: 04/22/2024] [Indexed: 04/30/2024]
Abstract
In this study we investigated the potential synergistic effects of moderate interval training (MIT) and lithium on spatial learning and memory. Forty-two male Wistar males were classified into six groups including I: Control, II: 10 mg/kg/day IP lithium (Li10), III: MIT, IV: Li10 + MIT, V: 40 mg/kg/day IP lithium (Li40), and VI: Li40 + MIT. Then, the rats underwent Morris Water Maze (MWM) test to assess their spatial memory and learning ability. Brain-derived neurotrophic factor (BDNF) density was measured by enzyme-linked immunosorbent assay (ELISA), and the expression of PGC1 and SIRT3 were assessed via qRT-PCR. The results show that MIT improves both memory and spatial learning; but lithium alone, does not cause this. Additionally, those exposed to a combination of exercise and lithium also had improved spatial learning and memory. Finally, we observed a positive role of BDNF protein, and PGC1 gene on the effects of exercise and lithium.
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Affiliation(s)
- Elham Shoghi
- Cellular and Molecular Research Center, Research Institute of Cellular and Molecular Sciences in Infectious Diseases, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Tahereh Safari
- Pharmacology Research Center, Zahedan University of Medical Sciences, Zahedan, Iran; Department of Physiology, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Abolfazl Parsi-Moud
- Cellular and Molecular Research Center, Research Institute of Cellular and Molecular Sciences in Infectious Diseases, Zahedan University of Medical Sciences, Zahedan, Iran; Student Research Committee, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Ilia Mirzaei
- Cellular and Molecular Research Center, Research Institute of Cellular and Molecular Sciences in Infectious Diseases, Zahedan University of Medical Sciences, Zahedan, Iran; Student Research Committee, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Nahid Sepehri Rad
- Infectious Diseases and Tropical Medicine Research Center, Research Institute of Cellular and Molecular Sciences in Infectious Diseases, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Mohadeseh Chahkandi
- Cellular and Molecular Research Center, Research Institute of Cellular and Molecular Sciences in Infectious Diseases, Zahedan University of Medical Sciences, Zahedan, Iran.
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20
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Guo J, Cao Y, Zhang T, Xu C, Liu Z, Li W, Wang Q. Multisensory Fusion Training and 7, 8-Dihydroxyflavone Improve Amyloid-β-Induced Cognitive Impairment, Anxiety, and Depression-Like Behavior in Mice Through Multiple Mechanisms. Neuropsychiatr Dis Treat 2024; 20:1247-1270. [PMID: 38883414 PMCID: PMC11180438 DOI: 10.2147/ndt.s459891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 06/05/2024] [Indexed: 06/18/2024] Open
Abstract
Background There is growing interest in the role of physical activity in patients with of Alzheimer's disease (AD), particularly regarding its impact of cognitive function, gut microbiota, metabolites, and neurotrophic factors. Objective To investigate the impact of multisensory fusion training (MSFT) combined with 7, 8-dihydroxyflavone (DHF) on the behavioral characteristics, protein expression, microbiome, and serum metabolome using the AD model in mice induced with amyloid-β (Aβ). Methods We assessed cognitive ability, anxiety-like and depression-like behaviors in Aβ mice using behavioral measures. Western blotting was employed to detect the expression of relevant proteins. The 16S rRNA gene sequencing and metabolomics were used to analyze changes in the intestinal microbial composition and serum metabolic profile, respectively, of Aβ mice. Results The behavioral outcomes indicated that a 4-week intervention combining DHF and MSFT yielded remarkable improvements in cognitive function and reduced anxiety and depression-like behaviors in Aβ mice. In the hippocampus of Aβ mice, the combined intervention increased the levels of BDNF, VGF, PSD-95, Nrf2, p-GSK3β and p-CREB proteins. Analyses of sequence and metabolomic data revealed that Bacteroides and Ruminococcaceae were remarkably more abundant following the combined intervention, influencing the expression of specific metabolites directly linked to the maintenance of neuronal and neurobehavioral functions. These metabolites play a crucial role in vital processes, such as amino acid metabolism, lipid metabolism, and neurotransmitter metabolism in mice. Conclusion Our study highlighted that MSFT combined with DHF improves cognitive impairment, anxiety, and depression-like behavior in Aβ mice through multiple mechanisms, and further validated the correlation between the gut microbiome and serum metabolome. These findings open up a promising avenue for future investigations into potential treatment strategies for AD.
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Affiliation(s)
- Jiejie Guo
- Zhejiang Key Laboratory of Pathophysiology, NBU Health Science Center, Ningbo University, Ningbo, People's Republic of China
- Department of Clinical Laboratory, The First People's Hospital of Wenling, Taizhou, People's Republic of China
- Department of Neurology, The First People's Hospital of Wenling, Taizhou, People's Republic of China
| | - Yanzi Cao
- Zhejiang Key Laboratory of Pathophysiology, NBU Health Science Center, Ningbo University, Ningbo, People's Republic of China
| | - Ting Zhang
- Department of Clinical Laboratory, The First People's Hospital of Wenling, Taizhou, People's Republic of China
| | - Chunshuang Xu
- Zhejiang Key Laboratory of Pathophysiology, NBU Health Science Center, Ningbo University, Ningbo, People's Republic of China
| | - Zhitao Liu
- Zhejiang Key Laboratory of Pathophysiology, NBU Health Science Center, Ningbo University, Ningbo, People's Republic of China
- Fujian Normal University, Fuzhou, People's Republic of China
| | - Wanyi Li
- Zhejiang Key Laboratory of Pathophysiology, NBU Health Science Center, Ningbo University, Ningbo, People's Republic of China
| | - Qinwen Wang
- Zhejiang Key Laboratory of Pathophysiology, NBU Health Science Center, Ningbo University, Ningbo, People's Republic of China
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21
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Lu Y, Lin Z, Li M, Zhuang Y, Nie B, Lei J, Zhao Y, Zhao H. Three-phase Enriched Environment Improves Post-stroke Gait Dysfunction via Facilitating Neuronal Plasticity in the Bilateral Sensorimotor Cortex: A Multimodal MRI/PET Analysis in Rats. Neurosci Bull 2024; 40:719-731. [PMID: 38055107 PMCID: PMC11178725 DOI: 10.1007/s12264-023-01155-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 08/22/2023] [Indexed: 12/07/2023] Open
Abstract
The three-phase Enriched Environment (EE) paradigm has been shown to promote post-stroke functional improvement, but the neuronal mechanisms are still unclear. In this study, we applied a multimodal neuroimaging protocol combining magnetic resonance imaging (MRI) and positron emission tomography (PET) to examine the effects of post-ischemic EE treatment on structural and functional neuroplasticity in the bilateral sensorimotor cortex. Rats were subjected to permanent middle cerebral artery occlusion. The motor function of the rats was examined using the DigiGait test. MRI was applied to investigate the EE-induced structural modifications of the bilateral sensorimotor cortex. [18F]-fluorodeoxyglucose PET was used to detect glucose metabolism. Blood oxygen level-dependent (BOLD)-functional MRI (fMRI) was used to identify the regional brain activity and functional connectivity (FC). In addition, the expression of neuroplasticity-related signaling pathways including neurotrophic factors (BDNF/CREB), axonal guidance proteins (Robo1/Slit2), and axonal growth-inhibitory proteins (NogoA/NgR) as well as downstream proteins (RhoA/ROCK) in the bilateral sensorimotor cortex were measured by Western blots. Our results showed the three-phase EE improved the walking ability. Structural T2 mapping imaging and diffusion tensor imaging demonstrated that EE benefited structure integrity in the bilateral sensorimotor cortex. PET-MRI fused images showed improved glucose metabolism in the corresponding regions after EE intervention. Specifically, the BOLD-based amplitude of low-frequency fluctuations showed that EE increased spontaneous activity in the bilateral motor cortex and ipsilateral sensory cortex. In addition, FC results showed increased sensorimotor connectivity in the ipsilateral hemisphere and increased interhemispheric motor cortical connectivity and motor cortical-thalamic connectivity following EE intervention. In addition, a strong correlation was found between increased functional connectivity and improved motor performance of limbs. Specifically, EE regulated the expression of neuroplasticity-related signaling, involving BDNF/CREB, Slit2/Robo1, as well as the axonal growth-inhibitory pathways Nogo-A/Nogo receptor and RhoA/ROCK in the bilateral sensorimotor cortex. Our results indicated that the three-phase enriched environment paradigm enhances neuronal plasticity of the bilateral sensorimotor cortex and consequently ameliorates post-stroke gait deficits. These findings might provide some new clues for the development of EE and thus facilitate the clinical translation of EE.
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Affiliation(s)
- Yun Lu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
- Beijing Key Lab of TCM Collateral Disease Theory Research, Beijing, 100069, China
| | - Ziyue Lin
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
- Beijing Key Lab of TCM Collateral Disease Theory Research, Beijing, 100069, China
| | - Mingcong Li
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
- Beijing Key Lab of TCM Collateral Disease Theory Research, Beijing, 100069, China
| | - Yuming Zhuang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
- Beijing Key Lab of TCM Collateral Disease Theory Research, Beijing, 100069, China
| | - Binbin Nie
- Beijing Engineering Research Center of Radiographic Techniques and Equipment, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| | - Jianfeng Lei
- Medical Imaging Laboratory of Core Facility Center, Capital Medical University, Beijing, 100069, China
| | - Yuanyuan Zhao
- Medical Imaging Laboratory of Core Facility Center, Capital Medical University, Beijing, 100069, China
| | - Hui Zhao
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China.
- Beijing Key Lab of TCM Collateral Disease Theory Research, Beijing, 100069, China.
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22
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Sharifi S, Rostami F, Babaei Khorzoughi K, Rahmati M. Effect of time-restricted eating and intermittent fasting on cognitive function and mental health in older adults: A systematic review. Prev Med Rep 2024; 42:102757. [PMID: 38774517 PMCID: PMC11107340 DOI: 10.1016/j.pmedr.2024.102757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 04/30/2024] [Accepted: 05/08/2024] [Indexed: 05/24/2024] Open
Abstract
Objective Emerging evidence suggests that dietary interventions hold promise for promoting cognitive function and mental well-being in aging populations. This systematic review aimed to examine the potential relationship between Time-Restricted Eating (TRE) and Intermittent Fasting (IFA) with cognitive function and mental health in older adults. Methods A thorough exploration was undertaken on electronic databases such as PubMed, Scopus, Web of Science, Science Direct, and Google Scholar, up to October 2023, following PRISMA standards. The evaluation of the quality and potential bias in the incorporated articles involved the use of the Newcastle-Ottawa Scale and Consolidated Standards of Reporting Trials (CONSORT). Results From a total of 539 articles initially identified, eight studies met the eligibility criteria for inclusion in this review. Out of these eight studies, six focused on cognitive function, and 2 focused on mental health. The reviewed articles encompassed a wide range of population sizes, with the number of older adults studied varying from 10 to 1357, reflecting a diverse cohort of individuals. Conclusions.The findings suggest that TRE and IFA may have a positive impact on cognitive function and mental health in this population. However, additional research is needed to fully comprehend this relationship. Therefore, future research should specifically examine factors such as the duration and timing of the eating window in TRE, as well as the physical condition of older adults, to provide a more nuanced understanding of the cognitive and mental health benefits of TRE and IFA in older adults.
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Affiliation(s)
- Sina Sharifi
- Department of Geriatric and Psychiatric Nursing, School of Nursing and Midwifery, Kermanshah University of Medical Sciences (KUMS), Kermanshah, Iran
| | - Fatemeh Rostami
- Department of Nursing, School of Nursing and Midwifery, Kermanshah University of Medical Sciences (KUMS), Kermanshah, Iran
| | - Kimia Babaei Khorzoughi
- Faculty of Education and Psychology, Islamic Azad University Isfahan (Khorasgan) Branch, Isfahan, Iran
| | - Mahmoud Rahmati
- Department of Geriatric and Psychiatric Nursing, School of Nursing and Midwifery, Kermanshah University of Medical Sciences (KUMS), Kermanshah, Iran
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23
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Cui W, Lv C, Geng P, Fu M, Zhou W, Xiong M, Li T. Novel targets and therapies of metformin in dementia: old drug, new insights. Front Pharmacol 2024; 15:1415740. [PMID: 38881878 PMCID: PMC11176471 DOI: 10.3389/fphar.2024.1415740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Accepted: 05/16/2024] [Indexed: 06/18/2024] Open
Abstract
Dementia is a devastating disorder characterized by progressive and persistent cognitive decline, imposing a heavy public health burden on the individual and society. Despite numerous efforts by researchers in the field of dementia, pharmacological treatments are limited to relieving symptoms and fail to prevent disease progression. Therefore, studies exploring novel therapeutics or repurposing classical drugs indicated for other diseases are urgently needed. Metformin, a first-line antihyperglycemic drug used to treat type 2 diabetes, has been shown to be beneficial in neurodegenerative diseases including dementia. This review discusses and evaluates the neuroprotective role of metformin in dementia, from the perspective of basic and clinical studies. Mechanistically, metformin has been shown to improve insulin resistance, reduce neuronal apoptosis, and decrease oxidative stress and neuroinflammation in the brain. Collectively, the current data presented here support the future potential of metformin as a potential therapeutic strategy for dementia. This study also inspires a new field for future translational studies and clinical research to discover novel therapeutic targets for dementia.
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Affiliation(s)
- Wenxing Cui
- College of Life Sciences, Northwest University, Xi'an, China
- Department of Neurosurgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Chen Lv
- Hangzhou Simo Co., Ltd., Hangzhou, China
| | - Panling Geng
- College of Life Sciences, Northwest University, Xi'an, China
| | - Mingdi Fu
- College of Life Sciences, Northwest University, Xi'an, China
| | - Wenjing Zhou
- College of Life Sciences, Northwest University, Xi'an, China
| | - Mingxiang Xiong
- College of Life Sciences, Northwest University, Xi'an, China
| | - Tian Li
- School of Basic Medicine, Fourth Military Medical University, Xi'an, China
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24
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Waddington EE, Allison DJ, Calabrese EM, Pekos C, Lee A, Walsh JJ, Heisz JJ. Orienteering combines vigorous-intensity exercise with navigation to improve human cognition and increase brain-derived neurotrophic factor. PLoS One 2024; 19:e0303785. [PMID: 38776348 PMCID: PMC11111042 DOI: 10.1371/journal.pone.0303785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 04/30/2024] [Indexed: 05/24/2024] Open
Abstract
Exercise enhances aspects of human cognition, but its intensity may matter. Recent animal research suggests that vigorous exercise, which releases greater amounts of lactate, activates more brain-derived neurotrophic factor (BDNF) in the hippocampus and, thus, may be optimal for supporting cognitive function. The cognitive benefits of exercise may be further augmented when combined with cognitive training. The sport of orienteering simultaneously combines exercise with spatial navigation and, therefore, may result in greater cognitive benefits than exercising only, especially at vigorous intensities. The present study aimed to examine the effects of an acute bout of orienteering at different intensities on cognition and BDNF compared to exercising only. We hypothesized that vigorous-intensity orienteering would increase lactate and BDNF and improve cognition more than moderate-intensity orienteering or vigorous exercise alone. Sixty-three recreationally active, healthy young adults (Mage = 21.10±2.75 years) with no orienteering experience completed a 1.3 km intervention course by navigating and exercising at a vigorous (80-85% of heart rate reserve) or moderate (40-50% of heart rate reserve) intensity or exercising vigorously without navigation. Exercise intensity was monitored using peak lactate, heart rate and rating of perceived exertion. Serum BDNF was extracted immediately before and after the intervention. Memory was assessed using the Mnemonic Similarity Task (high-interference memory) and the Groton Maze Learning Test (spatial memory). Both exercising and orienteering at a vigorous intensity elicited greater peak lactate and increases in BDNF than moderate-intensity orienteering, and individuals with higher peak lactate also had greater increases in BDNF. High-interference memory improved after both vigorous-intensity interventions but did not improve after the moderate-intensity intervention. Spatial memory only increased after vigorous-intensity orienteering, suggesting that orienteering at a vigorous intensity may particularly benefit spatial cognition. Overall, the results demonstrate the benefits of vigorous exercise on human cognition and BDNF.
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Affiliation(s)
- Emma E. Waddington
- Department of Kinesiology, Faculty of Science, McMaster University, Hamilton, Ontario, Canada
| | - David J. Allison
- Department of Physical Medicine and Rehabilitation, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - Emilie M. Calabrese
- Department of Kinesiology, Faculty of Science, McMaster University, Hamilton, Ontario, Canada
| | - Cara Pekos
- Department of Kinesiology, Faculty of Science, McMaster University, Hamilton, Ontario, Canada
| | - Adrienne Lee
- Department of Kinesiology, Faculty of Science, McMaster University, Hamilton, Ontario, Canada
| | - Jeremy J. Walsh
- Department of Kinesiology, Faculty of Science, McMaster University, Hamilton, Ontario, Canada
| | - Jennifer J. Heisz
- Department of Kinesiology, Faculty of Science, McMaster University, Hamilton, Ontario, Canada
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25
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Potvin-Desrochers A, Atri A, Clouette J, Hepple RT, Taivassalo T, Paquette C. Resting-state Functional Connectivity of the Motor and Cognitive Areas is Preserved in Masters Athletes. Neuroscience 2024; 546:53-62. [PMID: 38522662 DOI: 10.1016/j.neuroscience.2024.03.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 03/16/2024] [Accepted: 03/19/2024] [Indexed: 03/26/2024]
Abstract
Aging is characterized by a decline in physical and cognitive functions, often resulting in decreased quality of life. Physical activity has been suggested to potentially slow down various aspects of the aging process, a theory that has been supported by studies of Masters Athletes (MA). For example, MA usually have better cognitive and physical functions than age-matched sedentary and healthy older adults (OA), making them a valuable model to gain insights into mechanisms that promote physical and cognitive function with aging. The purpose of this study was to identify differences in resting-state functional connectivity (rs-FC) of motor and cognitive regions between MA and OA and determine if these differences in the resting brain are associated with differences in cognitive and physical performance between groups. Fifteen MA (9 males) and 12 age-matched OA (six males) were included. rs-FC images were compared to identify significant between-groups differences in brain connectivity. There was higher connectivity between the cognitive and motor networks for the OA group, whereas the MA group had stronger connectivity between different regions within the same network, both for the cognitive and the motor networks. These results are in line with the literature suggesting that aging reduces the segregation between functional networks and causes regions within the same network to be less strongly connected. High-level physical activity practiced by the MA most likely contributes to attenuating aging-related changes in brain functional connectivity, preserving clearer boundaries between different functional networks, which may ultimately favor maintenance of efficient cognitive and sensorimotor processing.
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Affiliation(s)
- Alexandra Potvin-Desrochers
- Department of Kinesiology and Physical Education, McGill University, 475 Pine Ave., Montreal, Quebec, Canada; Jewish Rehabilitation Hospital Site of CISSS-Laval and Research Site of the Montreal Centre for Interdisciplinary Research in Rehabilitation (CRIR), 3205 Place Alton-Goldbloom, Laval, Quebec, Canada; Integrated Program in Neuroscience (IPN), McGill University, 1033 Pine Ave, Montreal, Quebec, Canada
| | - Alisha Atri
- Department of Kinesiology and Physical Education, McGill University, 475 Pine Ave., Montreal, Quebec, Canada; Jewish Rehabilitation Hospital Site of CISSS-Laval and Research Site of the Montreal Centre for Interdisciplinary Research in Rehabilitation (CRIR), 3205 Place Alton-Goldbloom, Laval, Quebec, Canada
| | - Julien Clouette
- Department of Kinesiology and Physical Education, McGill University, 475 Pine Ave., Montreal, Quebec, Canada; Jewish Rehabilitation Hospital Site of CISSS-Laval and Research Site of the Montreal Centre for Interdisciplinary Research in Rehabilitation (CRIR), 3205 Place Alton-Goldbloom, Laval, Quebec, Canada
| | - Russell T Hepple
- Department of Physical Therapy, University of Florida, 101 Newell Dr, Gainesville, FL, USA; Department of Physiology and Functional Genomics, University of Florida, 1600 SW Archer Rd, Gainesville, FL, USA
| | - Tanja Taivassalo
- Department of Physiology and Functional Genomics, University of Florida, 1600 SW Archer Rd, Gainesville, FL, USA
| | - Caroline Paquette
- Department of Kinesiology and Physical Education, McGill University, 475 Pine Ave., Montreal, Quebec, Canada; Jewish Rehabilitation Hospital Site of CISSS-Laval and Research Site of the Montreal Centre for Interdisciplinary Research in Rehabilitation (CRIR), 3205 Place Alton-Goldbloom, Laval, Quebec, Canada; Integrated Program in Neuroscience (IPN), McGill University, 1033 Pine Ave, Montreal, Quebec, Canada.
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26
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Jibril TI, Alzoubi KH, Mhaidat NM, Khabour OF, Alqudah MA, Rababa’h AM, Alrabadi N, Al-udatt D. Sildenafil prevents chronic psychosocial stress-induced working memory impairment: Role of brain-derived neurotrophic factor. CURRENT RESEARCH IN PHARMACOLOGY AND DRUG DISCOVERY 2024; 6:100182. [PMID: 38706525 PMCID: PMC11067328 DOI: 10.1016/j.crphar.2024.100182] [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: 02/02/2024] [Revised: 03/29/2024] [Accepted: 04/12/2024] [Indexed: 05/07/2024] Open
Abstract
Background Psychosocial stress, a common feature in modern societies, impairs cognitive functions. It is suggested that stress hormones and elevated excitatory amino acids during stress are responsible for stress-induced cognitive deficits. Reduced brain-derived neurotrophic factor (BDNF) levels, increased oxidative stress, and alteration of synaptic plasticity biomarkers are also possible contributors to the negative impact of stress on learning and memory. Sildenafil citrate is a selective phosphodiesterase type 5 (PDE5) inhibitor and the first oral therapy for the treatment of erectile dysfunction. It has been shown that sildenafil improves learning and memory and possesses antioxidant properties. We hypothesized that administering sildenafil to stressed rats prevents the cognitive deficit induced by chronic psychosocial stress. Methods Psychosocial stress was generated using the intruder model. Sildenafil 3 mg/kg/day was administered intraperitoneally to animals. Behavioral studies were conducted to test spatial learning and memory using the radial arm water maze. Then, the hippocampal BDNF level and several antioxidant markers were assessed. Results This study revealed that chronic psychosocial stress impaired short-term but not long-term memory. The administration of sildenafil prevented this short-term memory impairment. Chronic psychosocial stress markedly reduced the level of hippocampal BDNF (P˂0.05), and this reduction in BDNF was normalized by sildenafil treatment. In addition, neither chronic psychosocial stress nor sildenafil significantly altered the activity of measured oxidative parameters (P > 0.05). Conclusion Chronic psychosocial stress induces short-term memory impairment. The administration of sildenafil citrate prevented this impairment, possibly by normalizing the level of BDNF.
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Affiliation(s)
- Tareq I. Jibril
- Department of Clinical Pharmacy, Jordan University of Science and Technology, Irbid, Jordan
| | - Karem H. Alzoubi
- Department of Pharmacy Practice and Pharmacotherapeutics, College of Pharmacy, University of Sharjah, Sharjah, United Arab Emirates
- Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, Jordan
| | - Nizar M. Mhaidat
- Department of Clinical Pharmacy, Jordan University of Science and Technology, Irbid, Jordan
| | - Omar F. Khabour
- Department of Medical Laboratory Sciences, Jordan University of Science and Technology, Irbid, 22110, Jordan
| | - Mohammad A.Y. Alqudah
- Department of Pharmacy Practice and Pharmacotherapeutics, College of Pharmacy, University of Sharjah, Sharjah, United Arab Emirates
- Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, Jordan
| | - Abeer M. Rababa’h
- Department of Clinical Pharmacy, Jordan University of Science and Technology, Irbid, Jordan
| | - Nasr Alrabadi
- Department of Pharmacology, Faculty of Medicine, Jordan University of Science and Technology, Irbid, 22110, Jordan
| | - Doaa Al-udatt
- Department of Physiology and Biochemistry, Faculty of Medicine, Jordan University of Science and Technology, Irbid, 22110, Jordan
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27
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Dong H, Wang S, Hu C, Wang M, Zhou T, Zhou Y. Neuroprotective Effects of Intermittent Fasting in the Aging Brain. ANNALS OF NUTRITION & METABOLISM 2024; 80:175-185. [PMID: 38631305 DOI: 10.1159/000538782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 04/06/2024] [Indexed: 04/19/2024]
Abstract
BACKGROUND A major risk factor for neurodegenerative disorders is old age. Nutritional interventions that delay aging, such as calorie restriction (CR) and intermittent fasting (IF), as well as pharmaceuticals that affect the pathways linking nutrition and aging processes, have been developed in recent decades and have been shown to alleviate the effects of aging on the brain. SUMMARY CR is accomplished by alternating periods of ad libitum feeding and fasting. In animal models, IF has been shown to increase lifespan and slow the progression and severity of age-related pathologies such as cardiovascular and neurodegenerative diseases and cancer. According to recent research, dietary changes can help older people with dementia retain brain function. However, the mechanisms underlying the neuroprotective effect of IF on the aging brain and related questions in this area of study (i.e., the potential of IF to treat neurodegenerative disorders) remain to be examined. KEY MESSAGES This review addresses the hypothesis that IF may have translational potential in protecting the aged brain while summarizing the research supporting the putative neuroprotective mechanisms of IF in animal models. Additionally, given the emerging understanding of the connection between aging and dementia, our investigations may offer a fresh perspective on the use of dietary interventions for enhancing brain function and preventing dementia in elderly individuals. Finally, the absence of guidelines regarding the application of IF in patients hampers its broad utilization in clinical practice, and further studies are needed to improve our knowledge of the long-term effects of IF on dementia before it can be widely prescribed. In conclusion, IF may be an ancillary intervention for preserving memory and cognition in elderly individuals.
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Affiliation(s)
- Hao Dong
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, China
| | - Shiyan Wang
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, China
| | - Chenji Hu
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, China
| | - Mao Wang
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, China
| | - Tao Zhou
- Department of Pharmaceutical and Medical Equipment, Ba Yi Orthopedic Hospital, Chengdu, China
| | - Yue Zhou
- Department of Pharmacy, Xindu District People's Hospital of Chengdu, Chengdu, China
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28
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Wells RG, Neilson LE, McHill AW, Hiller AL. Dietary fasting and time-restricted eating in Huntington's disease: therapeutic potential and underlying mechanisms. Transl Neurodegener 2024; 13:17. [PMID: 38561866 PMCID: PMC10986006 DOI: 10.1186/s40035-024-00406-z] [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: 11/15/2023] [Accepted: 02/23/2024] [Indexed: 04/04/2024] Open
Abstract
Huntington's disease (HD) is a devastating neurodegenerative disorder caused by aggregation of the mutant huntingtin (mHTT) protein, resulting from a CAG repeat expansion in the huntingtin gene HTT. HD is characterized by a variety of debilitating symptoms including involuntary movements, cognitive impairment, and psychiatric disturbances. Despite considerable efforts, effective disease-modifying treatments for HD remain elusive, necessitating exploration of novel therapeutic approaches, including lifestyle modifications that could delay symptom onset and disease progression. Recent studies suggest that time-restricted eating (TRE), a form of intermittent fasting involving daily caloric intake within a limited time window, may hold promise in the treatment of neurodegenerative diseases, including HD. TRE has been shown to improve mitochondrial function, upregulate autophagy, reduce oxidative stress, regulate the sleep-wake cycle, and enhance cognitive function. In this review, we explore the potential therapeutic role of TRE in HD, focusing on its underlying physiological mechanisms. We discuss how TRE might enhance the clearance of mHTT, recover striatal brain-derived neurotrophic factor levels, improve mitochondrial function and stress-response pathways, and synchronize circadian rhythm activity. Understanding these mechanisms is critical for the development of targeted lifestyle interventions to mitigate HD pathology and improve patient outcomes. While the potential benefits of TRE in HD animal models are encouraging, future comprehensive clinical trials will be necessary to evaluate its safety, feasibility, and efficacy in persons with HD.
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Affiliation(s)
- Russell G Wells
- Department of Neurology, Oregon Health and Science University, 3181 SW Sam Jackson Park Rd, Portland, OR, 97239, USA.
| | - Lee E Neilson
- Department of Neurology, Oregon Health and Science University, 3181 SW Sam Jackson Park Rd, Portland, OR, 97239, USA
- Neurology and PADRECC VA Portland Health Care System, Portland, OR, 97239, USA
| | - Andrew W McHill
- Sleep, Chronobiology and Health Laboratory, School of Nursing, Oregon Health & Science University, Portland, OR, 97239, USA
- Oregon Institute of Occupational Health Sciences, Oregon Health & Sciences University, Portland, OR, 97239, USA
| | - Amie L Hiller
- Department of Neurology, Oregon Health and Science University, 3181 SW Sam Jackson Park Rd, Portland, OR, 97239, USA
- Neurology and PADRECC VA Portland Health Care System, Portland, OR, 97239, USA
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29
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Strilbytska O, Klishch S, Storey KB, Koliada A, Lushchak O. Intermittent fasting and longevity: From animal models to implication for humans. Ageing Res Rev 2024; 96:102274. [PMID: 38499159 DOI: 10.1016/j.arr.2024.102274] [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: 07/28/2023] [Revised: 02/16/2024] [Accepted: 03/13/2024] [Indexed: 03/20/2024]
Abstract
In recent years, intermittent fasting (IF) and its numerous modifications have been increasingly suggested as a promising therapy for age-related problems and a non-pharmacological strategy to extend lifespan. Despite the great variability in feeding schedules that we describe in the current work, underlying physiological processes are the same and include a periodic switch from glucose metabolism (generated by glycogenolysis) to fatty acids and fatty acid-derived ketones. Many of the beneficial effects of IF appear to be mediated by optimization of energy utilization. Findings to date from both human and animal experiments indicate that fasting improves physiological function, enhances performance, and slows aging and disease processes. In this review, we discuss some of the remarkable discoveries about the beneficial effects of IF on metabolism, endocrine and cardiovascular systems, cancer prevention, brain health, neurodegeneration and aging. Experimental studies on rodent models and human investigations are summarized to compare the outcomes and underlying mechanisms of IF. Metabolic and cellular responses triggered by IF could help to achieve the aim of preventing disease, and maximizing healthspan and longevity with minimal side effects.
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Affiliation(s)
- Olha Strilbytska
- Deparment of Biochemistry and Biotechnology, Vasyl Stefanyk Precarpathian National University, Shevchenka 57, Ivano-Frankivsk 76018, Ukraine
| | - Svitlana Klishch
- Deparment of Biochemistry and Biotechnology, Vasyl Stefanyk Precarpathian National University, Shevchenka 57, Ivano-Frankivsk 76018, Ukraine
| | - Kenneth B Storey
- Institute of Biochemistry, Carleton University, 1125 Colonel By Drive, Ontario, Ottawa K1S 5B6, Canada
| | - Alexander Koliada
- D.F. Chebotarev Institute of Gerontology, NAMS, 67 Vyshgorodska str., Kyiv 04114, Ukraine
| | - Oleh Lushchak
- Deparment of Biochemistry and Biotechnology, Vasyl Stefanyk Precarpathian National University, Shevchenka 57, Ivano-Frankivsk 76018, Ukraine; Research and Development University, 13a Shota Rustaveli str., Ivano-Frankivsk 76018, Ukraine.
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Hernandez CM, Florant GL, Stranahan AM. Seasonal fluctuations in BDNF regulate hibernation and torpor in golden-mantled ground squirrels. Am J Physiol Regul Integr Comp Physiol 2024; 326:R311-R318. [PMID: 38344803 PMCID: PMC11283892 DOI: 10.1152/ajpregu.00186.2023] [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: 07/28/2023] [Revised: 12/23/2023] [Accepted: 01/30/2024] [Indexed: 03/24/2024]
Abstract
Aphagic hibernators such as the golden-mantled ground squirrel (GMGS; Callospermophilus lateralis) can fast for months and exhibit profound seasonal fluctuations in body weight, food intake, and behavior. Brain-derived neurotrophic factor (BDNF) regulates cellular and systemic metabolism via mechanisms that are conserved across mammalian species. In this study, we characterized regional changes in BDNF with hibernation, hypothermia, and seasonal cycle in GMGS. Analysis of BDNF protein concentrations by ELISA revealed overlapping seasonal patterns in the hippocampus and hypothalamus, where BDNF levels were highest in summer and lowest in winter. BDNF is the primary ligand for receptor tyrosine kinase B (TrkB), and BDNF/TrkB signaling in the brain potently regulates energy expenditure. To examine the functional relevance of seasonal variation in BDNF, hibernating animals were injected with the small molecule TrkB agonist 7,8-dihydroxyflavone (DHF) daily for 2 wk. When compared with vehicle, DHF-treated animals exhibited fewer torpor bouts and shorter bout durations. These results suggest that activating BDNF/TrkB disrupts hibernation and raise intriguing questions related to the role of BDNF as a potential regulatory mechanism or downstream response to seasonal changes in body temperature and environment.NEW & NOTEWORTHY Golden-mantled ground squirrels exhibit dramatic seasonal fluctuations in metabolism and can fast for months while hibernating. Brain-derived neurotrophic factor is an essential determinant of cellular and systemic metabolism, and in this study, we characterized seasonal fluctuations in BDNF expression and then administered the small molecule BDNF mimetic 7,8-dihydroxyflavone (DHF) in hibernating squirrels. The results indicate that activating BDNF/TrkB signaling disrupts hibernation, with implications for synaptic homeostasis in prolonged hypometabolic states.
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Affiliation(s)
- Caterina M Hernandez
- Department of Neuroscience and Regenerative Medicine, Augusta University, Medical College of Georgia, Augusta, Georgia, United States
- Department of Pharmaceutical Sciences, Appalachian College of Pharmacy, Oakwood, Virginia, United States
| | - Gregory L Florant
- Department of Biology, Colorado State University, Fort Collins, Colorado, United States
| | - Alexis M Stranahan
- Department of Neuroscience and Regenerative Medicine, Augusta University, Medical College of Georgia, Augusta, Georgia, United States
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Mi Y, Wen O, Lei Z, Ge L, Xing L, Xi H. Insulin resistance and osteocalcin associate with the incidence and severity of postoperative delirium in elderly patients undergoing joint replacement. Geriatr Gerontol Int 2024; 24:421-429. [PMID: 38438300 DOI: 10.1111/ggi.14848] [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: 09/03/2023] [Revised: 01/30/2024] [Accepted: 02/14/2024] [Indexed: 03/06/2024]
Abstract
AIM While insulin sensitivity plays an important role in maintaining glucose metabolic homeostasis and cognitive function, its impact on postoperative delirium (POD) remains unclear. This study aimed to investigate the association between POD and indicators of insulin sensitivity, including insulin resistance and osteocalcin. METHODS A total of 120 elderly patients undergoing joint replacement were recruited and divided into delirium and non-delirium groups. Plasma and cerebrospinal fluid (CSF) samples were collected for the analysis of biomarkers, including insulin, uncarboxylated osteocalcin (ucOC), total osteocalcin (tOC), and glucose. Insulin resistance was assessed through the homeostatic model assessment of insulin resistance (HOMA-IR). MAIN RESULTS Out of the total, 28 patients (23.3%) experienced POD within 5 days after surgery. Patients with delirium exhibited higher levels of preoperative HOMA-IR and ucOC in CSF and plasma, and of tOC in CSF (P = 0.028, P < 0.001, P = 0.005, P = 0.019). After adjusting for variables, including age, Mini-Mental State Examination score, surgical site and preoperative fracture, only preoperative ucOC in CSF and HOMA-IR were significantly linked to the incidence of delirium (OR = 5.940, P = 0.008; OR = 1.208, P = 0.046, respectively), both of which also correlated with the severity of delirium (P = 0.007, P < 0.001). Receiver operating curve analysis indicated that preoperative HOMA-IR and ucOC in CSF might partly predict POD (area under the curve [AUC] = 0.697, 95% confidence interval [CI] = 0.501-0.775, AUC = 0.745, 95% CI = 0.659-0.860). CONCLUSIONS We observed that preoperative elevated HOMA-IR and ucOC in CSF were associated with the incidence and severity of POD. While these preliminary results need confirmation, they suggest a potential involvement of insulin resistance and osteocalcin in the pathological mechanism of POD. Geriatr Gerontol Int 2024; 24: 421-429.
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Affiliation(s)
- Yang Mi
- Department of Anesthesiology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Ouyang Wen
- Department of Anesthesiology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Zhou Lei
- Department of Anesthesiology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Long Ge
- Department of Anesthesiology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Liu Xing
- Department of Anesthesiology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - He Xi
- Department of Anesthesiology, The Third Xiangya Hospital of Central South University, Changsha, China
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Wang L, Bian X, Liu L, He Q, Xu J, Chen X, Ye H, Yang J, Jiang L. Association between cognitive function and skeletal muscle in patients undergoing maintenance hemodialysis. Front Endocrinol (Lausanne) 2024; 15:1324867. [PMID: 38559694 PMCID: PMC10981270 DOI: 10.3389/fendo.2024.1324867] [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: 10/20/2023] [Accepted: 02/28/2024] [Indexed: 04/04/2024] Open
Abstract
Background Patients on hemodialysis have a higher burden of cognitive impairment than individuals of the same age in the general population. Studies have found a link between cognition and skeletal muscle function. However, few studies have investigated these associations and the underlying mechanisms in patients on hemodialysis. Methods A total of 166 patients on hemodialysis were enrolled in this longitudinal study. Cognitive function was assessed by Montreal Cognitive Assessment (MoCA) scores. Skeletal muscle indicators were evaluated using Inbody S10. Plasma brain-derived neurotrophic factor (BDNF) concentrations were measured by enzyme-linked immunosorbent assay. The primary outcome was a change in the MoCA scores. A mediation analysis was performed to examine the indirect effect of skeletal muscle on cognitive decline through BDNF. Results Among the 166 patients, the average age was 49.9 ± 11.2 years. Of these patients with a median follow-up of 1,136 days, 133 participated in the study. We defined MoCA scores decreased by ≥2 points at 3 years from the baseline measurement as cognitive decline (CD). Compared to the cognitively unchanged group, patients with CD had significantly lower fat-free mass, soft lean mass, skeletal muscle mass, and skeletal muscle index (all P<0.05). After adjusting for potential confounders, skeletal muscle indicators were protective predictors of CD. A significant increase in plasma BDNF levels was observed in the CD group. Mediation analysis suggested that BDNF played a mediating role of 20-35% between cognitive impairment and skeletal muscle. Conclusion Skeletal muscle is a protective predictor of CD in patients undergoing dialysis. BDNF mediates the relationship between cognitive impairment and skeletal muscle function.
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Affiliation(s)
| | | | | | | | | | | | - Hong Ye
- Center for Kidney Disease, The Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Junwei Yang
- Center for Kidney Disease, The Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Lei Jiang
- Center for Kidney Disease, The Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
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Yan Z, Xing Z, Xue T, Zhao J, Li G, Xu L, Sun Q. Insulin-like growth factor-1 in myocardial ischemia-reperfusion injury: A review. Medicine (Baltimore) 2024; 103:e37279. [PMID: 38428899 PMCID: PMC10906579 DOI: 10.1097/md.0000000000037279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 01/25/2024] [Indexed: 03/03/2024] Open
Abstract
Myocardial ischemia-reperfusion injury (MIRI) is a severe damage inflicted on the ischemic myocardium when blood flow is restored, and it commonly occurs in a wide range of cardiovascular diseases. Presently, no effective clinical treatment exists for MIRI. Accumulating evidence indicates that insulin-like growth factor-1 (IGF-1) plays a role in the intricate chain of cardiovascular events, in addition to its well-recognized growth-promoting and metabolic effects. IGF-1, a member of the insulin family, exhibits a broad spectrum of protective effects against ischemia/reperfusion injury in various tissues, especially the myocardium. In particular, earlier research has demonstrated that IGF-1 reduces cellular oxidative stress, improves mitochondrial function, interacts with noncoding RNAs, and activates cardiac downstream protective genes and protective signaling channels. This review aimed to summarize the role of IGF-1 in MIRI and elucidate its related mechanisms of action. In addition, IGF-1-related interventions for MIRI, such as ischemic preconditioning and post-conditioning, were discussed. The purpose of this review was to provide evidence supporting the activation of IGF-1 in MIRI and advocate its use as a therapeutic target.
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Affiliation(s)
- Zhenrong Yan
- Department of Clinical Laboratory, Affiliated Hospital of Chengde Medical University, Hebei, China
| | - Ziyang Xing
- Department of Clinical Laboratory, Affiliated Hospital of Chengde Medical University, Hebei, China
| | - Tingyun Xue
- Department of Clinical Laboratory, Affiliated Hospital of Chengde Medical University, Hebei, China
| | - Jiaye Zhao
- Department of Clinical Laboratory, Affiliated Hospital of Chengde Medical University, Hebei, China
| | - Guangmei Li
- Department of Clinical Laboratory, Affiliated Hospital of Chengde Medical University, Hebei, China
| | - Liwenjing Xu
- Department of Clinical Laboratory, Affiliated Hospital of Chengde Medical University, Hebei, China
| | - Qiyu Sun
- Department of Clinical Laboratory, Affiliated Hospital of Chengde Medical University, Hebei, China
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Mattson MP, Leak RK. The hormesis principle of neuroplasticity and neuroprotection. Cell Metab 2024; 36:315-337. [PMID: 38211591 DOI: 10.1016/j.cmet.2023.12.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 11/06/2023] [Accepted: 12/18/2023] [Indexed: 01/13/2024]
Abstract
Animals live in habitats fraught with a range of environmental challenges to their bodies and brains. Accordingly, cells and organ systems have evolved stress-responsive signaling pathways that enable them to not only withstand environmental challenges but also to prepare for future challenges and function more efficiently. These phylogenetically conserved processes are the foundation of the hormesis principle, in which single or repeated exposures to low levels of environmental challenges improve cellular and organismal fitness and raise the probability of survival. Hormetic principles have been most intensively studied in physical exercise but apply to numerous other challenges known to improve human health (e.g., intermittent fasting, cognitive stimulation, and dietary phytochemicals). Here we review the physiological mechanisms underlying hormesis-based neuroplasticity and neuroprotection. Approaching natural resilience from the lens of hormesis may reveal novel methods for optimizing brain function and lowering the burden of neurological disorders.
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Affiliation(s)
- Mark P Mattson
- Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| | - Rehana K Leak
- Graduate School of Pharmaceutical Sciences, Duquesne University, Pittsburgh, PA, USA
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35
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Ciubuc-Batcu MT, Stapelberg NJC, Headrick JP, Renshaw GMC. A mitochondrial nexus in major depressive disorder: Integration with the psycho-immune-neuroendocrine network. Biochim Biophys Acta Mol Basis Dis 2024; 1870:166920. [PMID: 37913835 DOI: 10.1016/j.bbadis.2023.166920] [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: 07/19/2023] [Revised: 10/06/2023] [Accepted: 10/09/2023] [Indexed: 11/03/2023]
Abstract
Nervous system processes, including cognition and affective state, fundamentally rely on mitochondria. Impaired mitochondrial function is evident in major depressive disorder (MDD), reflecting cumulative detrimental influences of both extrinsic and intrinsic stressors, genetic predisposition, and mutation. Glucocorticoid 'stress' pathways converge on mitochondria; oxidative and nitrosative stresses in MDD are largely mitochondrial in origin; both initiate cascades promoting mitochondrial DNA (mtDNA) damage with disruptions to mitochondrial biogenesis and tryptophan catabolism. Mitochondrial dysfunction facilitates proinflammatory dysbiosis while directly triggering immuno-inflammatory activation via released mtDNA, mitochondrial lipids and mitochondria associated membranes (MAMs), further disrupting mitochondrial function and mitochondrial quality control, promoting the accumulation of abnormal mitochondria (confirmed in autopsy studies). Established and putative mechanisms highlight a mitochondrial nexus within the psycho-immune neuroendocrine (PINE) network implicated in MDD. Whether lowering neuronal resilience and thresholds for disease, or linking mechanistic nodes within the MDD pathogenic network, impaired mitochondrial function emerges as an important risk, a functional biomarker, providing a therapeutic target in MDD. Several treatment modalities have been demonstrated to reset mitochondrial function, which could benefit those with MDD.
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Affiliation(s)
- M T Ciubuc-Batcu
- Griffith University School of Medicine and Dentistry, Australia; Gold Coast Health, Queensland, Australia
| | - N J C Stapelberg
- Bond University Faculty of Health Sciences and Medicine, Australia; Gold Coast Health, Queensland, Australia
| | - J P Headrick
- Griffith University School of Pharmacy and Medical Science, Australia
| | - G M C Renshaw
- Hypoxia and Ischemia Research Unit, Griffith University, School of Health Sciences and Social Work, Australia.
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Inyushkin AN, Poletaev VS, Inyushkina EM, Kalberdin IS, Inyushkin AA. Irisin/BDNF signaling in the muscle-brain axis and circadian system: A review. J Biomed Res 2023; 38:1-16. [PMID: 38164079 PMCID: PMC10818175 DOI: 10.7555/jbr.37.20230133] [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: 06/04/2023] [Revised: 09/19/2023] [Accepted: 09/25/2023] [Indexed: 01/03/2024] Open
Abstract
In mammals, the timing of physiological, biochemical and behavioral processes over a 24-h period is controlled by circadian rhythms. To entrain the master clock located in the suprachiasmatic nucleus of the hypothalamus to a precise 24-h rhythm, environmental zeitgebers are used by the circadian system. This is done primarily by signals from the retina via the retinohypothalamic tract, but other cues like exercise, feeding, temperature, anxiety, and social events have also been shown to act as non-photic zeitgebers. The recently identified myokine irisin is proposed to serve as an entraining non-photic signal of exercise. Irisin is a product of cleavage and modification from its precursor membrane fibronectin type Ⅲ domain-containing protein 5 (FNDC5) in response to exercise. Apart from well-known peripheral effects, such as inducing the "browning" of white adipocytes, irisin can penetrate the blood-brain barrier and display the effects on the brain. Experimental data suggest that FNDC5/irisin mediates the positive effects of physical activity on brain functions. In several brain areas, irisin induces the production of brain-derived neurotrophic factor (BDNF). In the master clock, a significant role in gating photic stimuli in the retinohypothalamic synapse for BDNF is suggested. However, the brain receptor for irisin remains unknown. In the current review, the interactions of physical activity and the irisin/BDNF axis with the circadian system are reconceptualized.
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Affiliation(s)
- Alexey N. Inyushkin
- Department of Human & Animal Physiology, Samara National Research University, Samara 443011, Russia
| | - Vitalii S. Poletaev
- Department of Human & Animal Physiology, Samara National Research University, Samara 443011, Russia
| | - Elena M. Inyushkina
- Department of Human & Animal Physiology, Samara National Research University, Samara 443011, Russia
| | - Igor S. Kalberdin
- Department of Human & Animal Physiology, Samara National Research University, Samara 443011, Russia
| | - Andrey A. Inyushkin
- Department of Human & Animal Physiology, Samara National Research University, Samara 443011, Russia
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Queen NJ, Huang W, Zou X, Mo X, Cao L. AAV-BDNF gene therapy ameliorates a hypothalamic neuroinflammatory signature in the Magel2-null model of Prader-Willi syndrome. Mol Ther Methods Clin Dev 2023; 31:101108. [PMID: 37766791 PMCID: PMC10520877 DOI: 10.1016/j.omtm.2023.09.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 09/08/2023] [Indexed: 09/29/2023]
Abstract
Individuals with Prader-Willi syndrome (PWS) exhibit several metabolic and behavioral abnormalities associated with excessive food-seeking activity. PWS is thought to be driven in part by dysfunctional hypothalamic circuitry and blunted responses to peripheral signals of satiety. Previous work described a hypothalamic transcriptomic signature of individuals with PWS. Notably, PWS patients exhibited downregulation of genes involved in neuronal development and an upregulation of neuroinflammatory genes. Deficiencies of brain-derived neurotrophic factor (BDNF) and its receptor were identified as potential drivers of PWS phenotypes. Our group recently applied an adeno-associated viral (AAV)-BDNF gene therapy within a preclinical PWS model, Magel2-null mice, to improve metabolic and behavioral function. While this proof-of-concept project was promising, it remained unclear how AAV-BDNF was influencing the hypothalamic microenvironment and how its therapeutic effect was mediated. To investigate, we hypothalamically injected AAV-BDNF to wild type and Magel2-null mice and performed mRNA sequencing on hypothalamic tissue. Here, we report that (1) Magel2 deficiency is associated with neuroinflammation in the hypothalamus and (2) AAV-BDNF gene therapy reverses this neuroinflammation. These data newly reveal Magel2-null mice as a valid model of PWS-related neuroinflammation and furthermore suggest that AAV-BDNF may modulate obesity-related neuroinflammatory phenotypes through direct or indirect means.
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Affiliation(s)
- Nicholas J. Queen
- Department of Cancer Biology & Genetics, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
- The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210, USA
| | - Wei Huang
- Department of Cancer Biology & Genetics, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
- The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210, USA
| | - Xunchang Zou
- Department of Cancer Biology & Genetics, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
- The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210, USA
| | - Xiaokui Mo
- Department of Biomedical Informatics, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Lei Cao
- Department of Cancer Biology & Genetics, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
- The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210, USA
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Zhang K, Zhai W, Ge X, Zhang X, Tian W, Zhai X. Targeting BDNF with acupuncture: A novel integrated strategy for diabetes and depression comorbidity. Heliyon 2023; 9:e22798. [PMID: 38125513 PMCID: PMC10731078 DOI: 10.1016/j.heliyon.2023.e22798] [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: 07/04/2023] [Revised: 09/12/2023] [Accepted: 11/20/2023] [Indexed: 12/23/2023] Open
Abstract
Diabetes and depression are common comorbid conditions that impose a substantial health burden. Acupuncture may effectively improve symptoms in patients with diabetes and depression, but the underlying mechanism remains unclear. Brain-derived neurotrophic factor (BDNF) may play a vital role in the effects of acupuncture on diabetes and depression comorbidity. This review summarizes the potential role of BDNF in acupuncture for diabetes and depression comorbidity. BDNF appears to exert its effects via the BDNF-TrkB-ERK-CREB signaling pathway. BDNF levels are reduced in diabetes and depression, and acupuncture may increase BDNF expression, improving symptoms and glycemic control. High-quality research is needed to validate the efficacy of acupuncture for diabetes and depression comorbidity. Randomized controlled trials and mechanistic studies should investigate the BDNF pathway and other potential mechanisms. Improved understanding of the links between diabetes, depression and acupuncture may enable targeted and individualized patient care. Earlier diagnosis and management of diabetes and depression comorbidity should also be a priority.
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Affiliation(s)
- Kaiqi Zhang
- Wangjing Hospital, China Academy of Chinese Medical Sciences, Beijing, 100102, China
| | - Weihang Zhai
- Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Xiaolei Ge
- Wangjing Hospital, China Academy of Chinese Medical Sciences, Beijing, 100102, China
| | - Xiaoqian Zhang
- Beijing Hospital of Integrated Traditional Chinese and Western Medicine, Beijing, 100038, China
| | - Wei Tian
- Gaoyang County Hospital, Hebei Province, Baoding 071599, China
| | - Xu Zhai
- Wangjing Hospital, China Academy of Chinese Medical Sciences, Beijing, 100102, China
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39
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Shi J, Song S, Wu K, Liang G, Wang A, Xu X. Role of brain-derived neurotrophic factor in endotoxaemia-induced acute lung injury. Exp Physiol 2023; 108:1456-1465. [PMID: 37909847 PMCID: PMC10988478 DOI: 10.1113/ep091228] [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: 03/23/2023] [Accepted: 10/16/2023] [Indexed: 11/03/2023]
Abstract
Acute lung injury (ALI) or acute respiratory distress syndrome (ARDS), which is a pulmonary manifestation of a systemic reactive inflammatory syndrome, is a serious disease with high mortality, and sepsis is an important risk factor in the development of ALI. Brain-derived neurotrophic factor (BDNF) is a member of the nerve growth factor family. It plays an essential role in the regulation of the modification of synaptic efficacy and brain metabolic activity and enhances neuronal survival. However, the role and underlying mechanism of BDNF in sepsis-induced ALI remain unclear. Here, we sought to observe the expression of BDNF in the lung tissues of mice. C57BL/6J mice were divided randomly into two groups: saline (n = 4) and lipopolysaccharide (LPS) (n = 4). We found that BDNF expression was elevated in the lung tissues of septic mice. Furthermore, we found that BDNF colocalized with aquaporin 5, a marker for type I alveolar epithelial cells, by immunofluorescence staining. In addition, we also found that tropomyosin-related kinase B, the specific receptor of BDNF, colocalized with surfactant protein C, a marker for type II alveolar epithelial cells, by immunofluorescence staining. Finally, the present study indicated that BDNF may alleviate excessive LPS-induced autophagy in alveolar epithelial cells. Overall, we hypothesize that BDNF expression increases in the lung tissues of septic mice as a compensatory mechanism to ameliorate sepsis-induced ALI by inhibiting excessive alveolar epithelial cell autophagy.
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Affiliation(s)
- Jinye Shi
- College of Fisheries and Life ScienceShanghai Ocean UniversityShanghaiChina
- Department of Anesthesiology, Affiliated Shanghai Sixth People's HospitalShanghai Jiao Tong UniversityShanghaiChina
| | - Shuang Song
- Department of Respiratory Medicine, Affiliated Shanghai Sixth People's HospitalShanghai Jiao Tong UniversityShanghaiChina
| | - Kaixuan Wu
- Department of Anesthesiology, Affiliated Shanghai Sixth People's HospitalShanghai Jiao Tong UniversityShanghaiChina
| | - Gui Liang
- Department of Anesthesiology, Affiliated Shanghai Sixth People's HospitalShanghai Jiao Tong UniversityShanghaiChina
| | - Aizhong Wang
- Department of Anesthesiology, Affiliated Shanghai Sixth People's HospitalShanghai Jiao Tong UniversityShanghaiChina
| | - Xiaotao Xu
- Department of Anesthesiology, Affiliated Shanghai Sixth People's HospitalShanghai Jiao Tong UniversityShanghaiChina
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Hu X, Peng J, Tang W, Xia Y, Song P. A circadian rhythm-restricted diet regulates autophagy to improve cognitive function and prolong lifespan. Biosci Trends 2023; 17:356-368. [PMID: 37722875 DOI: 10.5582/bst.2023.01221] [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: 09/20/2023]
Abstract
Diet and circadian rhythms have been found to have a profound impact on health, disease, and aging. Skipping breakfast, eating late, and overeating have adverse effects on the body's metabolism and increase the risk of cardiovascular and metabolic diseases. Disturbance of circadian rhythms has been associated with increased risk of atherosclerosis, Alzheimer's disease, Parkinson's disease, and other diseases. Abnormal deposition of amyloid β (Aβ) and tau proteins in the brain and impaired synaptic function are linked to cognitive dysfunction. A restrictive diet following the circadian rhythm can affect the metabolism of lipids, glucose, and amino acids such as branched chain amino acids and cysteine. These metabolic changes contribute to autophagy through molecular mechanisms such as adenosine monophosphate-activated protein kinase (AMPK), rapamycin (mTOR), D-β-hydroxybutyrate (D-BHB), and neuropeptide Y (NPY). Autophagy, in turn, promotes the removal of abnormally deposited proteins and damaged organelles and improves cognitive function, ultimately prolonging lifespan. In addition, a diet restricted to the circadian rhythm induces increased expression of brain-derived neurotrophic factor (BDNF) in the forebrain region, regulating autophagy and increasing synaptic plasticity, thus enhancing cognitive function. Consequently, circadian rhythm-restricted diets could serve as a promising non-pharmacological treatment for preventing and improving cognitive dysfunction and prolonging lifespan.
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Affiliation(s)
- Xiqi Hu
- Department of Neurosurgery, Haikou Affiliated Hospital of Central South University Xiangya School of Medicine, Haikou, China
- Center for Clinical Sciences, National Center for Global Health and Medicine, Tokyo, Japan
| | - Jun Peng
- Department of Neurosurgery, Haikou Affiliated Hospital of Central South University Xiangya School of Medicine, Haikou, China
| | - Wei Tang
- Department of Neurosurgery, Haikou Affiliated Hospital of Central South University Xiangya School of Medicine, Haikou, China
- International Health Care Center, National Center for Global Health and Medicine, Tokyo, Japan
| | - Ying Xia
- Department of Neurosurgery, Haikou Affiliated Hospital of Central South University Xiangya School of Medicine, Haikou, China
| | - Peipei Song
- Center for Clinical Sciences, National Center for Global Health and Medicine, Tokyo, Japan
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Li Z, Huang L, Luo Y, Yu B, Tian G. Effects and possible mechanisms of intermittent fasting on health and disease: a narrative review. Nutr Rev 2023; 81:1626-1635. [PMID: 36940184 DOI: 10.1093/nutrit/nuad026] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2023] Open
Abstract
The imbalance between energy intake and expenditure in an environment of continuous food availability can lead to metabolic disturbances in the body and increase the risk of obesity and a range of chronic noncommunicable diseases. Intermittent fasting (IF) is one of the most popular nonpharmacological interventions to combat obesity and chronic noncommunicable diseases. The 3 most widely studied IF regimens are alternate-day fasting, time-restricted feeding, and the 5:2 diet. In rodents, IF helps optimize energy metabolism, prevent obesity, promote brain health, improve immune and reproductive function, and delay aging. In humans, IF's benefits are relevant for the aging global population and for increasing human life expectancy. However, the optimal model of IF remains unclear. In this review, the possible mechanisms of IF are summarized and its possible drawbacks are discussed on the basis of the results of existing research, which provide a new idea for nonpharmaceutical dietary intervention of chronic noncommunicable diseases.
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Affiliation(s)
- Zimei Li
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - Liansu Huang
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - Yuheng Luo
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - Bing Yu
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - Gang Tian
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
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Hu X, Zhao HL, Kurban N, Qin Y, Chen X, Cui SY, Zhang YH. Reduction of BDNF Levels and Biphasic Changes in Glutamate Release in the Prefrontal Cortex Correlate with Susceptibility to Chronic Stress-Induced Anhedonia. eNeuro 2023; 10:ENEURO.0406-23.2023. [PMID: 37989582 PMCID: PMC10668226 DOI: 10.1523/eneuro.0406-23.2023] [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: 10/13/2023] [Revised: 10/17/2023] [Accepted: 10/26/2023] [Indexed: 11/23/2023] Open
Abstract
Chronic stress has been considered to induce depressive symptoms, such as anhedonia, particularly in susceptible individuals. Synaptic plasticity in the prefrontal cortex (PFC) is closely associated with susceptibility or resilience to chronic stress-induced anhedonia. However, effects of chronic stress with different durations on the neurobiological mechanisms that underlie susceptibility to anhedonia remain unclear. The present study investigated effects of chronic mild stress (CMS) for 14, 21, and 35 d on anhedonia-like behavior and glutamate synapses in the PFC. We found that brain-derived neurotrophic factor (BDNF) levels in the PFC significantly decreased only in anhedonia-susceptible rats that were exposed to CMS for 14, 21, and 35 d. Additionally, 14 d of CMS increased prefrontal glutamate release, and 35 d of CMS decreased glutamate release, in addition to reducing synaptic proteins and spine density in the PFC. Moreover, we found that anhedonia-like behavior in a subset of rats spontaneously decreased, accompanied by the restoration of BDNF levels and glutamate release, on day 21 of CMS. Ketamine treatment restored the reduction of BDNF levels and biphasic changes in glutamate release that were induced by CMS. Our findings revealed a progressive reduction of synaptic plasticity and biphasic changes in glutamate release in the PFC during CMS. Reductions of BDNF levels may be key neurobiological markers of susceptibility to stress-induced anhedonia.
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Affiliation(s)
- Xiao Hu
- Department of Pharmacology, School of Basic Medical Science, Peking University, Beijing 100191, China
| | - Hui-Ling Zhao
- Department of Pharmacology, School of Basic Medical Science, Peking University, Beijing 100191, China
| | - Nurhumar Kurban
- Department of Pharmacology, School of Basic Medical Science, Peking University, Beijing 100191, China
| | - Yu Qin
- Department of Pharmacology, School of Basic Medical Science, Peking University, Beijing 100191, China
| | - Xi Chen
- Department of Pharmacology, School of Basic Medical Science, Peking University, Beijing 100191, China
| | - Su-Ying Cui
- Department of Pharmacology, School of Basic Medical Science, Peking University, Beijing 100191, China
| | - Yong-He Zhang
- Department of Pharmacology, School of Basic Medical Science, Peking University, Beijing 100191, China
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Jiang Z, Zeng Z, He H, Li M, Lan Y, Hui J, Bie P, Chen Y, Liu H, Fan H, Xia H. Lycium barbarum glycopeptide alleviates neuroinflammation in spinal cord injury via modulating docosahexaenoic acid to inhibiting MAPKs/NF-kB and pyroptosis pathways. J Transl Med 2023; 21:770. [PMID: 37907930 PMCID: PMC10617163 DOI: 10.1186/s12967-023-04648-9] [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: 04/30/2023] [Accepted: 10/21/2023] [Indexed: 11/02/2023] Open
Abstract
BACKGROUND Lycium barbarum polysaccharide (LBP) is an active ingredient extracted from Lycium barbarum that inhibits neuroinflammation, and Lycium barbarum glycopeptide (LbGp) is a glycoprotein with immunological activity that was purified and isolated from LBP. Previous studies have shown that LbGp can regulate the immune microenvironment, but its specific mechanism of action remains unclear. AIMS In this study, we aimed to explore the mechanism of action of LbGp in the treatment of spinal cord injury through metabolomics and molecular experiments. METHODS SD male rats were randomly assigned to three experimental groups, and after establishing the spinal cord hemisection model, LbGp was administered orally. Spinal cord tissue was sampled on the seventh day after surgery for molecular and metabolomic experiments. In vitro, LbGp was administered to mimic the inflammatory microenvironment by activating microglia, and its mechanism of action in suppressing neuroinflammation was further elaborated using metabolomics and molecular biology techniques such as western blotting and q-PCR. RESULTS In vivo and in vitro experiments found that LbGp can improve the inflammatory microenvironment by inhibiting the NF-kB and pyroptosis pathways. Furthermore, LbGp induced the secretion of docosahexaenoic acid (DHA) by microglia, and DHA inhibited neuroinflammation through the MAPK/NF-κB and pyroptosis pathways. CONCLUSIONS In summary, we hypothesize that LbGp improves the inflammatory microenvironment by regulating the secretion of DHA by microglia and thereby inhibiting the MAPK/NF-κB and pyroptosis pathways and promoting nerve repair and motor function recovery. This study provides a new direction for the treatment of spinal cord injury and elucidates the potential mechanism of action of LbGp.
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Affiliation(s)
- Zhanfeng Jiang
- School of Clinical Medicine, Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, People's Republic of China
- Ningxia Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Sciences, General Hospital of Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, China
| | - Zhong Zeng
- School of Clinical Medicine, Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, People's Republic of China
- Ningxia Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Sciences, General Hospital of Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, China
| | - He He
- School of Clinical Medicine, Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, People's Republic of China
- Ningxia Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Sciences, General Hospital of Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, China
| | - Mei Li
- School of Clinical Medicine, Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, People's Republic of China
- Ningxia Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Sciences, General Hospital of Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, China
| | - Yuanxiang Lan
- School of Clinical Medicine, Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, People's Republic of China
- Ningxia Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Sciences, General Hospital of Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, China
| | - Jianwen Hui
- School of Clinical Medicine, Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, People's Republic of China
- Ningxia Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Sciences, General Hospital of Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, China
| | - Pengfei Bie
- School of Clinical Medicine, Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, People's Republic of China
- Ningxia Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Sciences, General Hospital of Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, China
| | - Yanjun Chen
- School of Clinical Medicine, Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, People's Republic of China
- Ningxia Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Sciences, General Hospital of Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, China
| | - Hao Liu
- School of Clinical Medicine, Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, People's Republic of China
| | - Heng Fan
- Ningxia Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Sciences, General Hospital of Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, China.
| | - Hechun Xia
- Ningxia Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Medical Sciences, General Hospital of Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, China.
- Department of Neurosurgery, General Hospital of Ningxia Medical University, Yinchuan, 750004, Ningxia Hui Autonomous Region, People's Republic of China.
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Leung WKC, Yau SY, Suen LKP, Lam SC. Effect of exercise interventions on brain-derived neurotrophic factor expression in people with overweight and obesity: protocol for a systematic review and meta-analysis. BMJ Open 2023; 13:e076118. [PMID: 37865417 PMCID: PMC10603475 DOI: 10.1136/bmjopen-2023-076118] [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: 05/29/2023] [Accepted: 09/27/2023] [Indexed: 10/23/2023] Open
Abstract
INTRODUCTION Epidemic obesity ('globobesity') has led to a considerable rise in the prevalence and incidence of many disabling conditions, including cognitive dysfunction. Recent evidence has suggested that habitual exercise can alleviate the deleterious effects of obesity on cognitive functioning across the lifespan. Given that there is a potential link among obesity, exercise, cognitive health and brain-derived neurotrophic factor (BDNF), this systematic review aims to critically appraise interventional trials on exercise and BDNF and to estimate the pooled effect of exercise training on BDNF levels among healthy individuals with overweight and obesity. METHODS AND ANALYSIS Six electronic databases-PubMed, MEDLINE, EMBASE, Web of Science, Ovid Nursing Database and SPORTDiscus-will be searched from their inception through December 2022. Only interventional studies, including randomised controlled trials and quasi-experimental studies, with full text available and reported in English will be included. The primary outcomes will be changes in BDNF levels among healthy subjects with overweight and obesity following either acute or chronic bouts of exercise interventions. Two reviewers will independently conduct data extraction and risk of bias assessment for included trials using the Physiotherapy Evidence Database Scale. We will produce a narrative synthesis, with findings categorised by sex, age groups and types of exercise training. Data will be extracted and pooled for meta-analyses using random-effects models. ETHICS AND DISSEMINATION No formal ethical approval is required for this systematic review. The findings of this review will be disseminated through peer-reviewed publications. PROSPERO REGISTRATION NUMBER CRD42023414868.
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Affiliation(s)
| | - Suk Yu Yau
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong SAR, China
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Shi X. Research advances in cochlear pericytes and hearing loss. Hear Res 2023; 438:108877. [PMID: 37651921 PMCID: PMC10538405 DOI: 10.1016/j.heares.2023.108877] [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: 03/19/2023] [Revised: 08/03/2023] [Accepted: 08/18/2023] [Indexed: 09/02/2023]
Abstract
Pericytes are specialized mural cells surrounding endothelial cells in microvascular beds. They play a role in vascular development, blood flow regulation, maintenance of blood-tissue barrier integrity, and control of angiogenesis, tissue fibrosis, and wound healing. In recent decades, understanding of the critical role played by pericytes in retina, brain, lung, and kidney has seen significant progress. The cochlea contains a large population of pericytes. However, the role of cochlear pericytes in auditory pathophysiology is, by contrast, largely unknown. The present review discusses recent progress in identifying cochlear pericytes, mapping their distribution, and defining their role in regulating blood flow, controlling the blood-labyrinth barrier (BLB) and angiogenesis, and involvement in different types of hearing loss.
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Affiliation(s)
- Xiaorui Shi
- Department of Otolaryngology/Head & Neck Surgery, Oregon Hearing Research Center (NRC04), Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239-3098, USA.
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Swain M, Soman SK, Tapia K, Dagda RY, Dagda RK. Brain-derived neurotrophic factor protects neurons by stimulating mitochondrial function through protein kinase A. J Neurochem 2023; 167:104-125. [PMID: 37688457 PMCID: PMC10543477 DOI: 10.1111/jnc.15945] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 07/28/2023] [Accepted: 08/01/2023] [Indexed: 09/10/2023]
Abstract
Brain-derived neurotrophic factor (BDNF) stimulates dendrite outgrowth and synaptic plasticity by activating downstream protein kinase A (PKA) signaling. Recently, BDNF has been shown to modulate mitochondrial respiration in isolated brain mitochondria, suggesting that BDNF can modulate mitochondrial physiology. However, the molecular mechanisms by which BDNF stimulates mitochondrial function in neurons remain to be elucidated. In this study, we surmised that BDNF binds to the TrkB receptor and translocates to mitochondria to govern mitochondrial physiology in a PKA-dependent manner. Confocal microscopy and biochemical subcellular fractionation assays confirm the localization of the TrkB receptor in mitochondria. The translocation of the TrkB receptor to mitochondria was significantly enhanced upon treating primary cortical neurons with exogenous BDNF, leading to rapid PKA activation. Showing a direct role of BDNF in regulating mitochondrial structure/function, time-lapse confocal microscopy in primary cortical neurons showed that exogenous BDNF enhances mitochondrial fusion, anterograde mitochondrial trafficking, and mitochondrial content within dendrites, which led to increased basal and ATP-linked mitochondrial respiration and glycolysis as assessed by an XF24e metabolic analyzer. BDNF-mediated regulation of mitochondrial structure/function requires PKA activity as treating primary cortical neurons with a pharmacological inhibitor of PKA or transiently expressing constructs that target an inhibitor peptide of PKA (PKI) to the mitochondrion abrogated BDNF-mediated mitochondrial fusion and trafficking. Mechanistically, western/Phos-tag blots show that BDNF stimulates PKA-mediated phosphorylation of Drp1 and Miro-2 to promote mitochondrial fusion and elevate mitochondrial content in dendrites, respectively. Effects of BDNF on mitochondrial function were associated with increased resistance of neurons to oxidative stress and dendrite retraction induced by rotenone. Overall, this study revealed new mechanisms of BDNF-mediated neuroprotection, which entails enhancing mitochondrial health and function of neurons.
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Affiliation(s)
- Maryann Swain
- Department of Pharmacology, University of Nevada, Reno School of Medicine, Reno, 1664 North Virginia Street, Nevada, 89557, USA
| | - Smijin K. Soman
- Department of Pharmacology, University of Nevada, Reno School of Medicine, Reno, 1664 North Virginia Street, Nevada, 89557, USA
| | - Kylea Tapia
- Department of Pharmacology, University of Nevada, Reno School of Medicine, Reno, 1664 North Virginia Street, Nevada, 89557, USA
| | - Raul Y. Dagda
- Department of Pharmacology, University of Nevada, Reno School of Medicine, Reno, 1664 North Virginia Street, Nevada, 89557, USA
| | - Ruben K. Dagda
- Department of Pharmacology, University of Nevada, Reno School of Medicine, Reno, 1664 North Virginia Street, Nevada, 89557, USA
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Bacopoulou F, Angelopoulos NG, Papadodima S, Apostolaki D, Mantzou A, Koniari E, Efthymiou V, Tsitsika A, Vlachakis D, Charmandari E, Stefanaki C. Serum concentrations of BDNF in adolescents with metabolic syndrome: a case-control study between normal - BMI adolescents and adolescents with obesity. Eur J Pediatr 2023; 182:4595-4603. [PMID: 37548699 PMCID: PMC10587278 DOI: 10.1007/s00431-023-05129-3] [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: 04/13/2023] [Revised: 07/05/2023] [Accepted: 07/21/2023] [Indexed: 08/08/2023]
Abstract
Brain-Derived Neurotrophic Factor (BDNF) has been linked to various conditions of the cardiovascular and nervous systems. Scarce data exist about the concentrations of BDNF in children and adolescents in relation with obesity and metabolic syndrome (MetS). The aim of this study was to examine the serum BDNF concentrations in adolescents with metabolic syndrome and according to their body mass index (BMI) status. This was a case-control study, assessing BDNF concentrations between adolescents with MetS (with obesity vs. normal-BMI), in relation to sex, anthropometric, metabolic and endocrine parameters. Participants included male and female adolescents, whose anthropometric and metabolic panel, as well as serum BDNF concentrations were measured. A total of 59 adolescents (obesity: 29; normal-BMI: 30) were included in the study. Increased serum BDNF concentrations were observed in MetS adolescents with obesity when compared with normal-BMI adolescents (p < 0.001). Males exhibited higher concentrations of BDNF than females (p = 0.045). The sample was further divided into four categories by sex and BMI status, with normal-BMI females exhibiting significantly lower BDNF concentrations than females and males with obesity(p = 0.005). In the entire study sample, serum BDNF concentrations correlated positively with BMI z-scores, however, this statistical significance was preserved only in the females of the sample. No statistical difference was observed between males of different BMI z-scores categories. Conclusion: Obesity appeared as a major factor for increased serum BDNF concentrations in adolescents with MetS (vs. normal-BMI), with a higher impact on BDNF concentrations in females than males. What is Known: • The brain-derived neurotrophic factor (BDNF) is involved in metabolic syndrome in adults but data in adolescents are scarce. What is New: • Obesity (vs. normal BMI) was a major factor for increased serum BDNF in adolescents with metabolic syndrome. • Obesity had a higher impact on BDNF concentrations in females than males with metabolic syndrome.
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Affiliation(s)
- Flora Bacopoulou
- Center for Adolescent Medicine and UNESCO Chair in Adolescent Health Care, First Department of Pediatrics, Medical School, Aghia Sophia Children's Hospital, National and Kapodistrian University of Athens, 11527, Athens, Greece
- University Research Institute of Maternal and Child Health and Precision Medicine, Medical School, National and Kapodistrian University of Athens, 11527, Athens, Greece
| | - Nikolaos G Angelopoulos
- Center for Adolescent Medicine and UNESCO Chair in Adolescent Health Care, First Department of Pediatrics, Medical School, Aghia Sophia Children's Hospital, National and Kapodistrian University of Athens, 11527, Athens, Greece
| | - Stavroula Papadodima
- Department of Forensic Medicine and Toxicology, Medical School, National and Kapodistrian University of Athens, 11527, Athens, Greece
| | - Despoina Apostolaki
- Center for Adolescent Medicine and UNESCO Chair in Adolescent Health Care, First Department of Pediatrics, Medical School, Aghia Sophia Children's Hospital, National and Kapodistrian University of Athens, 11527, Athens, Greece
| | - Aimilia Mantzou
- Unit of Clinical and Translational Research in Endocrinology, First Department of Pediatrics, Medical School, National and Kapodistrian University of Athens, Aghia Sophia Childrens Hospital, 1 Thivon Street, Goudi, 115 27, Athens, Greece
| | - Eleni Koniari
- Unit of Clinical and Translational Research in Endocrinology, First Department of Pediatrics, Medical School, National and Kapodistrian University of Athens, Aghia Sophia Childrens Hospital, 1 Thivon Street, Goudi, 115 27, Athens, Greece
| | - Vasiliki Efthymiou
- University Research Institute of Maternal and Child Health and Precision Medicine, Medical School, National and Kapodistrian University of Athens, 11527, Athens, Greece
| | - Artemis Tsitsika
- MSc "Strategies of Developmental and Adolescent Health", Second Department of Pediatrics, "P. & A. Kyriakou" Children's Hospital, Medical School, National and Kapodistrian University of Athens, 11527, Athens, Greece
| | - Dimitrios Vlachakis
- University Research Institute of Maternal and Child Health and Precision Medicine, Medical School, National and Kapodistrian University of Athens, 11527, Athens, Greece
- Laboratory of Genetics, Department of Biotechnology, School of Applied Biology and Biotechnology, Agricultural University of Athens, 11855, Athens, Greece
| | - Evangelia Charmandari
- Division of Endocrinology, Metabolism and Diabetes, First Department of Pediatrics, Medical School, National and Kapodistrian University of Athens, Aghia Sophia Children's Hospital, 11527, Athens, Greece
- Division of Endocrinology and Metabolism, Center for Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation of the Academy of Athens, 11527, Athens, Greece
| | - Charikleia Stefanaki
- Center for Adolescent Medicine and UNESCO Chair in Adolescent Health Care, First Department of Pediatrics, Medical School, Aghia Sophia Children's Hospital, National and Kapodistrian University of Athens, 11527, Athens, Greece.
- University Research Institute of Maternal and Child Health and Precision Medicine, Medical School, National and Kapodistrian University of Athens, 11527, Athens, Greece.
- First Department of Pediatrics, National and Kapodistrian University of Athens, Thivon & Levadeias Str., Goudi, 11527, Athens, Greece.
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Agrimi J, Bernardele L, Sbaiti N, Canato M, Marchionni I, Oeing CU, Vignoli B, Canossa M, Kaludercic N, Lodovichi C, Dal Maschio M, Paolocci N. Male violence disrupts estrogen receptor β signaling in the female hippocampus. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.09.23.559092. [PMID: 37790349 PMCID: PMC10542497 DOI: 10.1101/2023.09.23.559092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Abstract
Women are the main target of intimate partner violence (IPV), which is escalating worldwide. Mechanisms subtending IPV-related disorders, such as anxiety, depression and PTSD, remain unclear. We employed a mouse model molded on an IPV scenario (male vs. female prolonged violent interaction) to unearth the neuroendocrine alterations triggered by an aggressive male mouse on the female murine brain. Experimental IPV (EIPV) prompted marked anxiety-like behavior in young female mice, coincident with high circulating/cerebral corticosterone levels. The hippocampus of EIPV-inflicted female animals displayed neuronal loss, reduced BrdU-DCX-positive nuclei, decreased mature DCX-positive cells, and diminished dendritic arborization level in the dentate gyrus (DG), features denoting impaired neurogenesis and neuronal differentiation. These hallmarks were associated with marked down-regulation of estrogen receptor β (ERβ) density in the hippocampus, especially in the DG and dependent prosurvival ERK signaling. Conversely, ERα expression was unchanged. After EIPV, the DG harbored lowered local BDNF pools, diminished TrkB phosphorylation, and elevated glucocorticoid receptor phosphorylation. In unison, ERβ KO mice had heightened anxiety-like behavior and curtailed BDNF levels at baseline, despite enhanced circulating estradiol levels, while dying prematurely during EIPV. Thus, reiterated male-to-female violence jeopardizes hippocampal homeostasis in the female brain, perturbing ERβ/BDNF signaling, thus instigating anxiety and chronic stress.
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Affiliation(s)
- Jacopo Agrimi
- Department of Biomedical Sciences, University of Padova, Padova, Italy
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Lucia Bernardele
- Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - Naeem Sbaiti
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Marta Canato
- Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - Ivan Marchionni
- Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - Christian U. Oeing
- Department of Internal Medicine and Cardiology, Charité University Medicine, Berlin, Germany
| | - Beatrice Vignoli
- Department of Cellular, Computational, and Integrative Biology, University of Trento, Trento, Italy
| | - Marco Canossa
- Department of Cellular, Computational, and Integrative Biology, University of Trento, Trento, Italy
| | - Nina Kaludercic
- Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - Claudia Lodovichi
- Neuroscience Institute -CNR Padova, Italy
- Veneto Institute of Molecular Medicine, Padova, Italy
| | - Marco Dal Maschio
- Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - Nazareno Paolocci
- Department of Biomedical Sciences, University of Padova, Padova, Italy
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Shkundin A, Halaris A. Associations of BDNF/BDNF-AS SNPs with Depression, Schizophrenia, and Bipolar Disorder. J Pers Med 2023; 13:1395. [PMID: 37763162 PMCID: PMC10533016 DOI: 10.3390/jpm13091395] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 09/12/2023] [Accepted: 09/15/2023] [Indexed: 09/29/2023] Open
Abstract
Brain-Derived Neurotrophic Factor (BDNF) is crucial for various aspects of neuronal development and function, including synaptic plasticity, neurotransmitter release, and supporting neuronal differentiation, growth, and survival. It is involved in the formation and preservation of dopaminergic, serotonergic, GABAergic, and cholinergic neurons, facilitating efficient stimulus transmission within the synaptic system and contributing to learning, memory, and overall cognition. Furthermore, BDNF demonstrates involvement in neuroinflammation and showcases neuroprotective effects. In contrast, BDNF antisense RNA (BDNF-AS) is linked to the regulation and control of BDNF, facilitating its suppression and contributing to neurotoxicity, apoptosis, and decreased cell viability. This review article aims to comprehensively overview the significance of single nucleotide polymorphisms (SNPs) in BDNF/BDNF-AS genes within psychiatric conditions, with a specific focus on their associations with depression, schizophrenia, and bipolar disorder. The independent influence of each BDNF/BDNF-AS gene variation, as well as the interplay between SNPs and their linkage disequilibrium, environmental factors, including early-life experiences, and interactions with other genes, lead to alterations in brain architecture and function, shaping vulnerability to mental health disorders. The potential translational applications of BDNF/BDNF-AS polymorphism knowledge can revolutionize personalized medicine, predict disease susceptibility, treatment outcomes, and guide the selection of interventions tailored to individual patients.
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Affiliation(s)
| | - Angelos Halaris
- Department of Psychiatry and Behavioral Neurosciences, Loyola University Chicago Stritch School of Medicine, Loyola University Medical Center, Maywood, IL 60153, USA
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Cataldo AVR, Collimore AN, Spangler J, Ribeirinha-Braga L, Hutchinson K, Wang QM, Thompson L, Awad LN. Enhancing Neuroplasticity in the Chronic Phase After Stroke: Effects of a Soft Robotic Exosuit on Training Intensity and Brain-Derived Neurotrophic Factor. IEEE OPEN JOURNAL OF ENGINEERING IN MEDICINE AND BIOLOGY 2023; 4:284-291. [PMID: 38196979 PMCID: PMC10776098 DOI: 10.1109/ojemb.2023.3313396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 03/21/2023] [Accepted: 09/03/2023] [Indexed: 01/11/2024] Open
Abstract
Objective: High intensity training may enhance neuroplasticity after stroke; however, gait deficits limit the ability to achieve and sustain high walking training intensities. We hypothesize that soft robotic exosuits can facilitate speed-based gait training at higher intensities and longer durations, resulting in a corresponding increase in circulating brain-derived neurotrophic factor (BDNF). Results: Eleven individuals >6-mo post-stroke completed a two-session, pilot randomized crossover trial (NCT05138016). Maximum training speed (Δ: 0.07 ± 0.03 m/s), duration (Δ: 2.07 ± 0.88 min), and intensity (VO2 peak, Δ: 1.75 ± 0.60 ml-O2/kg/min) significantly increased (p < 0.05) during exosuit-augmented training compared to no-exosuit training. Post-session increases in BDNF (Δ: 5.96 ± 2.27 ng/ml, p = 0.03) were observed only after exosuit-augmented training. Biomechanical changes were not observed after exosuit-augmented training; however, a deterioration in gait propulsion symmetry (%Δ: -5 ± 2 %) and an increase in nonparetic propulsion (Δ: 0.9 ± 0.3 %bw) were observed (p < 0.05) after no-exosuit training. Conclusion: Soft robotic exosuits facilitate faster, longer duration, and higher intensity walking training associated with enhanced neuroplasticity.
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Affiliation(s)
- Anna V. Roto Cataldo
- Boston University, College of Health and Rehabilitation Sciences: SargentBostonMA02215USA
| | - Ashley N. Collimore
- Boston University, College of Health and Rehabilitation Sciences: SargentBostonMA02215USA
| | - Johanna Spangler
- Boston University, College of Health and Rehabilitation Sciences: SargentBostonMA02215USA
| | | | - Karen Hutchinson
- Boston University, College of Health and Rehabilitation Sciences: SargentBostonMA02215USA
| | - Qing Mei Wang
- Spaulding Rehabilitation HospitalCharlestownMA02129USA
| | - LaDora Thompson
- Boston University, College of Health and Rehabilitation Sciences: SargentBostonMA02215USA
| | - Louis N. Awad
- Boston University, College of Health and Rehabilitation Sciences: SargentBostonMA02215USA
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