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Murata Y, Yoshimitsu S, Senoura C, Araki T, Kanayama S, Mori M, Ohe K, Mine K, Enjoji M. Sleep rebound leads to marked recovery of prolonged sleep deprivation-induced adversities in the stress response and hippocampal neuroplasticity of male rats. J Affect Disord 2024; 355:478-486. [PMID: 38574868 DOI: 10.1016/j.jad.2024.04.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 03/26/2024] [Accepted: 04/01/2024] [Indexed: 04/06/2024]
Abstract
BACKGROUND Sleep disturbances are not only frequent symptoms, but also risk factors for major depressive disorder. We previously reported that depressed patients who experienced "Hypersomnia" showed a higher and more rapid response rate under paroxetine treatment, but the underlying mechanism remains unclear. The present study was conducted to clarify the beneficial effects of sleep rebound through an experimental "Hypersomnia" rat model on glucocorticoid and hippocampal neuroplasticity associated with antidepressive potency. METHODS Thirty-four male Sprague-Dawley rats were subjected to sham treatment, 72-h sleep deprivation, or sleep deprivation and subsequent follow-up for one week. Approximately half of the animals were sacrificed to evaluate adrenal weight, plasma corticosterone level, hippocampal content of mRNA isoforms, and protein of the brain-derived neurotrophic factor (Bdnf) gene. In the other half of the rats, Ki-67- and doublecortin (DCX)-positive cells in the hippocampus were counted via immunostaining to quantify adult neurogenesis. RESULTS Prolonged sleep deprivation led to adrenal hypertrophy and an increase in the plasma corticosterone level, which had returned to normal after one week follow-up. Of note, sleep deprivation-induced decreases in hippocampal Bdnf transcripts containing exons II, IV, VI, and IX and BDNF protein levels, Ki-67-(+)-proliferating cells, and DCX-(+)-newly-born neurons were not merely reversed, but overshot their normal levels with sleep rebound. LIMITATIONS The present study did not record electroencephalogram or assess behavioral changes of the sleep-deprived rats. CONCLUSIONS The present study demonstrated that prolonged sleep deprivation-induced adversities are reversed or recovered by sleep rebound, which supports "Hypersomnia" in depressed patients as having a beneficial pharmacological effect.
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Affiliation(s)
- Yusuke Murata
- Department of Pharmacotherapeutics, Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1, Nanakuma, Jonan-ku, Fukuoka 814-0180, Japan.
| | - Sakuya Yoshimitsu
- Department of Pharmacotherapeutics, Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1, Nanakuma, Jonan-ku, Fukuoka 814-0180, Japan
| | - Chiyo Senoura
- Department of Pharmacotherapeutics, Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1, Nanakuma, Jonan-ku, Fukuoka 814-0180, Japan
| | - Toshiki Araki
- Department of Pharmacotherapeutics, Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1, Nanakuma, Jonan-ku, Fukuoka 814-0180, Japan
| | - Saki Kanayama
- Department of Pharmacotherapeutics, Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1, Nanakuma, Jonan-ku, Fukuoka 814-0180, Japan
| | - Masayoshi Mori
- Department of Pharmacotherapeutics, Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1, Nanakuma, Jonan-ku, Fukuoka 814-0180, Japan
| | - Kenji Ohe
- Department of Pharmacotherapeutics, Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1, Nanakuma, Jonan-ku, Fukuoka 814-0180, Japan
| | - Kazunori Mine
- Faculty of Neurology and Psychiatry, BOOCS CLINIC FUKUOKA, 6F Random Square Bldg., 6-18, Tenya-Machi, Hakata-ku, Fukuoka 812-0025, Japan
| | - Munechika Enjoji
- Department of Pharmacotherapeutics, Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1, Nanakuma, Jonan-ku, Fukuoka 814-0180, Japan
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Zalta AK, Voigt RM, Stevens SK, Held P, Raeisi S, Boley RA, Keshavarzian A, Pollack MH. Brain derived neurotrophic factor and treatment outcomes among veterans attending an intensive treatment program for posttraumatic stress disorder. J Psychiatr Res 2024; 173:1-5. [PMID: 38437783 PMCID: PMC11018453 DOI: 10.1016/j.jpsychires.2024.02.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 01/29/2024] [Accepted: 02/20/2024] [Indexed: 03/06/2024]
Abstract
Brain derived neurotrophic factor (BDNF) may play an important role in the success of treatment for posttraumatic stress disorder (PTSD). Pre- and post-treatment blood samples were analyzed for 40 veterans who completed a 3-week intensive outpatient treatment for PTSD. The treatment included Cognitive Processing Therapy, mindfulness, and yoga as core treatment components. PTSD symptoms were assessed at pre-treatment, post-treatment, and 3-month follow-up. Participants reported large decreases in PTSD symptoms from pre-to post-treatment (d = 1.46, p < 0.001) and pre-treatment to 3-month follow-up (d = 0.91, p < 0.001). Unexpectedly, participants demonstrated a decrease in BDNF from pre-to post-treatment (d = 0.64, p < 0.001). Changes in BDNF from pre-to post-treatment were not significantly associated with PTSD symptom improvement. However, higher levels of post-treatment BDNF were significantly associated with lower PTSD symptoms at 3-month follow-up (n = 27, r = -0.57, p = 0.002) and greater improvements in PTSD symptoms from pre-treatment to 3-month follow-up (n = 27, r = 0.50, p = 0.008). Higher levels of post-treatment BDNF may facilitate the long-term success of intensive PTSD treatment. Further research with larger samples is needed to evaluate the processes by which BDNF may affect consolidation of improvements after completion of PTSD treatment.
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Affiliation(s)
- Alyson K Zalta
- Department of Psychological Science, University of California, Irvine, CA, USA; Department of Psychiatry and Behavioral Sciences, Rush University Medical Center, Chicago, IL, USA.
| | - Robin M Voigt
- Department of Internal Medicine, Rush University Medical Center, Chicago, IL, USA; Rush Center for Integrated Microbiome and Chronobiology Research, Rush University Medical Center, Chicago, IL, USA; Department of Anatomy & Cell Biology, Rush University Medical Center, Chicago, IL, USA
| | - Sarah K Stevens
- Department of Psychological Science, University of California, Irvine, CA, USA
| | - Philip Held
- Department of Psychiatry and Behavioral Sciences, Rush University Medical Center, Chicago, IL, USA
| | - Shohreh Raeisi
- Rush Center for Integrated Microbiome and Chronobiology Research, Rush University Medical Center, Chicago, IL, USA
| | - Randy A Boley
- Department of Psychiatry and Behavioral Sciences, Rush University Medical Center, Chicago, IL, USA; Department of Psychiatry, University of Illinois at Chicago, Chicago, IL, USA
| | - Ali Keshavarzian
- Department of Internal Medicine, Rush University Medical Center, Chicago, IL, USA; Rush Center for Integrated Microbiome and Chronobiology Research, Rush University Medical Center, Chicago, IL, USA; Department of Anatomy & Cell Biology, Rush University Medical Center, Chicago, IL, USA; Department of Physiology, Rush University Medical Center, Chicago, IL, USA
| | - Mark H Pollack
- Department of Psychiatry and Behavioral Sciences, Rush University Medical Center, Chicago, IL, USA
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You S, Wu Y, Guo Y, Wu M, Ran M, Cao F, Hao X, Yang L, Zhang H, Mi W, Tong L. Sevoflurane exerts antidepressant-like effects via the BDNF-TrkB pathway. Behav Brain Res 2024; 463:114918. [PMID: 38387696 DOI: 10.1016/j.bbr.2024.114918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 02/15/2024] [Accepted: 02/19/2024] [Indexed: 02/24/2024]
Abstract
Depression has emerged as the predominant psychiatric affliction affecting individuals. Prior research has substantiated the antidepressant properties exhibited by numerous anesthetics. Sevoflurane, a widely utilized inhalant anesthetic in clinical practice, remains relatively uncharted in terms of its specific antidepressant effects. In this study, we used open field test, forced swimming test and novelty-suppressed feeding test to investigate the anxiety and depression-like behaviors in C57BL/6 mice following the inhalation of sevoflurane. We then used western blotting to scrutinized the expression levels of proteins associated with the brain-derived neurotrophic factor (BDNF)-tryosine receptor kinase B (TrkB) pathway in the hippocampus and prefrontal cortex. To further investigate whether sevoflurane exerts antidepressant-like effects via the BDNF-TrkB pathway, we downregulated TrkB expression by administering siRNA into the lateral ventricle. We found that the inhalation of 2.5 % sevoflurane exerted a significant antidepressant-like effect, accompanied by an elevation in p-TrkB expression levels in the hippocampus and prefrontal cortex. Intriguingly, this antidepressant-like effect was abrogated following the downregulation of TrkB expression through the microinjection of siRNA into the lateral ventricle. In conclusion, this study provides evidence supporting the notion that sevoflurane exerts its antidepressant-like effect via the BDNF-TrkB signaling pathway.
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Affiliation(s)
- Shaohua You
- Department of Anesthesia, The First Medical Center of Chinese PLA General Hospital, Beijing 100853, China; Department of Pain Medicine, The First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Yishuang Wu
- Department of Anesthesia, The First Medical Center of Chinese PLA General Hospital, Beijing 100853, China; Department of Anesthesia, Beijing Tiantan Hospital Affiliated of Capital Medical University, 100050, China
| | - Yongxin Guo
- Department of Anesthesia, The First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Meng Wu
- Department of Anesthesia, The First Medical Center of Chinese PLA General Hospital, Beijing 100853, China; Department of Anesthesia, Peking University Shougang Hospital, Beijing 100144, China
| | - Mingzi Ran
- Department of Anesthesia, The Fourth Medical Center of Chinese PLA General Hospital, Beijing 100048, China
| | - Fuyang Cao
- Department of Anesthesia, The First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Xinyu Hao
- Department of Anesthesia, The First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Lujia Yang
- Department of Anesthesia, The First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Hong Zhang
- Department of Anesthesia, The First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Weidong Mi
- Department of Anesthesia, The First Medical Center of Chinese PLA General Hospital, Beijing 100853, China.
| | - Li Tong
- Department of Anesthesia, The First Medical Center of Chinese PLA General Hospital, Beijing 100853, China.
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Brandenburg JE, Fogarty MJ, Zhan WZ, Kopper LA, Sieck GC. Postnatal survival of phrenic motor neurons is promoted by BDNF/TrkB.FL signaling. J Appl Physiol (1985) 2024. [PMID: 38511211 DOI: 10.1152/japplphysiol.00911.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Accepted: 03/14/2024] [Indexed: 03/22/2024] Open
Abstract
The number of motor neurons (MNs) declines precipitously during the final trimester before birth. Thereafter, the number of MNs remains relatively stable, with their connections to skeletal muscle dependent on neurotrophins, including brain-derived neurotrophic factor (BDNF) signaling through its high affinity full length tropomyosin related kinase receptor subtype B (TrkB.FL) receptor. As a genetic knockout of BDNF leads to extensive MN loss and postnatal death within 1-2 days after birth; we tested the hypothesis that postnatal inhibition of BDNF/TrkB.FL signaling is important for postnatal PhMN survival. In the present study, we used a 1NMPP1-sensitive TrkBF616A mutant mouse to evaluate the effects of inhibition of TrkB kinase activity on phrenic MNs (PhMNs) numbers and diaphragm muscle (DIAm) fiber cross-sectional area (CSA). Pups were exposed to 1NMPP1 or vehicle (DMSO) from birth to 21 days old (weaning) via the mother's ingestion in the drinking water. Following weaning, the right phrenic nerve was exposed in the neck and the proximal end dipped in a rhodamine solution to retrogradely label PhMNs. After 24 h, the cervical spinal cord and DIAm were excised. Labeled PhMNs were imaged using confocal microscopy, while DIAm strips were frozen at ~1.5x resting length, cryosectioned and stained with H&E to assess CSA. We observed an ~34% reduction in PhMN numbers and increased primary dendrite numbers in 1NMPP1 treated TrkBF616A mice. The distribution of PhMN size (somal surface area) DIAm fiber cross-sectional areas did not differ. We conclude that survival of PhMNs during early postnatal development is sensitive to BDNF/TrkB.FL signaling.
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Affiliation(s)
- Joline E Brandenburg
- Department of Physical Medicine and Rehabilitation, Mayo Clinic, Rochester, MN, United States
| | - Matthew J Fogarty
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, United States
| | - Wen-Zhi Zhan
- Departments of Physiology & Biomedical Engineering, Mayo Clinic, Rochester, MN, United States
| | - Leo A Kopper
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, United States
| | - Gary C Sieck
- Department of Physiology & Biomedical Engineering, Mayo Clinic, Rochester, MN, United States
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Loch AA, Pinto MTC, Andrade JC, de Jesus LP, de Medeiros MW, Haddad NM, Bilt MTVD, Talib LL, Gattaz WF. Plasma levels of neurotrophin 4/5, NGF and pro-BDNF influence transition to mental disorders in a sample of individuals at ultra-high risk for psychosis. Psychiatry Res 2023; 327:115402. [PMID: 37544089 DOI: 10.1016/j.psychres.2023.115402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 06/19/2023] [Accepted: 07/31/2023] [Indexed: 08/08/2023]
Abstract
BACKGROUND Neurotrophins (NTs) and their precursors (pro-NTs) are polypeptides with important roles in neuronal development, differentiation, growth, survival and plasticity, as well as apoptosis and neuronal death. Imbalance in NT levels were observed in schizophrenia spectrum disorders, but evidence in ultra-high risk for psychosis (UHR) samples is scarce. METHODS A naturalistic sample of 87 non-help-seeking UHR subjects and 55 healthy controls was drawn from the general population. Blood samples were collected and NT-3, NT-4/5, BDNF, pro-BDNF, NGF, pro-NGF were analyzed through enzyme linked immunosorbent assay (ELISA). Information on cannabis and tobacco use was also collected. Logistic regression models and path analysis were used to control for confounders (tobacco, age, cannabis use). RESULTS NT-4/5 was significantly decreased, and pro-BDNF was significantly increased in UHR individuals compared to controls. Cannabis use and higher NGF levels were significantly related to transition to psychiatric disorders among UHR subjects. Increased pro-BDNF and decreased NT-4/5 influenced transition by the mediation of perceptual abnormalities. CONCLUSIONS Our study shows for the first time that NTs are altered in UHR compared to healthy control individuals, and that they can be a predictor of transition to psychiatric illnesses in this population. Future studies should employ larger naturalistic samples to confirm the findings.
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Affiliation(s)
- Alexandre Andrade Loch
- Laboratório de Neurociencias (LIM 27), Instituto de Psiquiatria, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR; Instituto Nacional de Biomarcadores em Neuropsiquiatria (INBION), Conselho Nacional de Desenvolvimento Científico e Tecnológico, Brazil.
| | - Marcel Tavares Camilo Pinto
- Laboratório de Neurociencias (LIM 27), Instituto de Psiquiatria, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR
| | - Julio Cesar Andrade
- Laboratório de Neurociencias (LIM 27), Instituto de Psiquiatria, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR
| | - Leonardo Peroni de Jesus
- Laboratório de Neurociencias (LIM 27), Instituto de Psiquiatria, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR
| | - Matheus Wanderley de Medeiros
- Laboratório de Neurociencias (LIM 27), Instituto de Psiquiatria, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR
| | - Natalia Mansur Haddad
- Laboratório de Neurociencias (LIM 27), Instituto de Psiquiatria, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR
| | - Martinus Theodorus van de Bilt
- Laboratório de Neurociencias (LIM 27), Instituto de Psiquiatria, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR; Instituto Nacional de Biomarcadores em Neuropsiquiatria (INBION), Conselho Nacional de Desenvolvimento Científico e Tecnológico, Brazil
| | - Leda Leme Talib
- Laboratório de Neurociencias (LIM 27), Instituto de Psiquiatria, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR; Instituto Nacional de Biomarcadores em Neuropsiquiatria (INBION), Conselho Nacional de Desenvolvimento Científico e Tecnológico, Brazil
| | - Wagner Farid Gattaz
- Laboratório de Neurociencias (LIM 27), Instituto de Psiquiatria, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR; Instituto Nacional de Biomarcadores em Neuropsiquiatria (INBION), Conselho Nacional de Desenvolvimento Científico e Tecnológico, Brazil
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Durazzo TC, McNerney MW, Hansen AM, Gu M, Sacchet MD, Padula CB. BDNF rs6265 Met carriers with alcohol use disorder show greater age-related decline of N-acetylaspartate in left dorsolateral prefrontal cortex. Drug Alcohol Depend 2023; 248:109901. [PMID: 37146499 DOI: 10.1016/j.drugalcdep.2023.109901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 04/04/2023] [Accepted: 04/25/2023] [Indexed: 05/07/2023]
Abstract
BACKGROUND Brain-derived neurotrophic factor (BDNF) is implicated in neuronal and glial cell growth and differentiation, synaptic plasticity, and apoptotic mechanisms. A single-nucleotide polymorphism of the BDNF rs6265 gene may contribute to the pattern and magnitude of brain metabolite abnormalities apparent in those with an Alcohol Use Disorder (AUD). We predicted that Methionine (Met) carriers would demonstrate lower magnetic resonance spectroscopy (MRS) measures of N-acetylaspartate level (NAA) and greater age-related decline in NAA than Valine (Val) homozygotes. METHODS Veterans with AUD (n=95; 46±12 years of age, min = 25, max = 71) were recruited from VA Palo Alto residential treatment centers. Single voxel MRS, at 3 Tesla, was used to obtain NAA, choline (Cho) and creatine (Cr) containing compounds from the left dorsolateral prefrontal cortex (DLPFC). Metabolite spectra were fit with LC Model and NAA and Cho were standardized to total Cr level and NAA was also standardized to Cho. RESULTS Val/Met (n=35) showed markedly greater age-related decline in left DLPFC NAA/Cr level than Val/Val (n=60); no differences in mean metabolite levels were observed between Val/Met and Val/Val. Val/Met demonstrated greater frequency of history of MDD and higher frequency of cannabis use disorder over 12 months prior to study. CONCLUSIONS The greater age-related decline in left DLPFC NAA/Cr and the higher frequency of MDD history and Cannabis Use disorder in BDNF rs6265 Met carriers with AUD are novel and may have implications for non-invasive brain stimulation targeting the left DLFPC and other psychosocial interventions typically utilized in the treatment of AUD.
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Affiliation(s)
- Timothy C Durazzo
- Palo Alto Veterans Affairs Health Care System, Mental Illness Research and Education Clinical Centers (MIRECC) Palo Alto, CA, USA; Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, CA, USA.
| | - M Windy McNerney
- Palo Alto Veterans Affairs Health Care System, Mental Illness Research and Education Clinical Centers (MIRECC) Palo Alto, CA, USA; Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, CA, USA
| | - Annika M Hansen
- Palo Alto Veterans Affairs Health Care System, Mental Illness Research and Education Clinical Centers (MIRECC) Palo Alto, CA, USA
| | - Meng Gu
- Department of Radiology, Stanford University School of Medicine, Stanford, CA, USA
| | - Matthew D Sacchet
- Meditation Research Program, Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Claudia B Padula
- Palo Alto Veterans Affairs Health Care System, Mental Illness Research and Education Clinical Centers (MIRECC) Palo Alto, CA, USA; Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, CA, USA
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Wang C, Jia X, Jin H, Meng Y, Ye W, Zhang N, Wang W, Kan H, Zhang J. Maternal exposure to fine particulate matter and brain-derived neurotrophic factor (BDNF) in the fetus: A prospective cohort study. Ecotoxicol Environ Saf 2023; 257:114912. [PMID: 37075646 DOI: 10.1016/j.ecoenv.2023.114912] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 04/10/2023] [Accepted: 04/11/2023] [Indexed: 05/03/2023]
Abstract
Maternal exposure to ambient fine particulate matter (PM2.5) during pregnancy has been associated with impaired neurobehavioral development in children. However, the specific mechanism remains unclear. Brain derived neurotrophic factor (BDNF) is an important growth factor in the nervous system. We evaluated the associations of maternal PM2.5 exposures with fetal BDNF in the umbilical cord blood in a prospective cohort study. A total of 711 eligible mother-infant pairs from the Shanghai Birth Cohort were included in the current study. Daily maternal exposures to ambient PM2.5 were assessed with a gap-filling approach at 1 * 1 km2 resolution based on self-reported home addresses. The concentrations of BDNF in the cord blood were measured by ELISA. A linear regression model was applied to evaluate the association of maternal ambient PM2.5 exposure with fetal BDNF level at birth. The median concentration of BDNF was 13,403 pg/ml. Vaginal deliveries and female infants had higher BDNF levels than cesarean deliveries and male infants. One natural log (ln) unit increase in maternal PM2.5 exposure during the second trimester was significantly associated with - 0.20 (95% CI: -0.36, -0.05) ln-unit decrease in BDNF level in all births. These effects were stronger and more significant in vaginal deliveries and in male infants. Our study suggests that BDNF in the cord blood may serve as a potential biomarker in assessing the neurodevelopmental effects of maternal PM2.5 exposure.
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Affiliation(s)
- Cuiping Wang
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaojun Jia
- Department of Obstetrics and Gynecology, Shanghai Putuo Maternity and Infant Hospital, 517 Tong Pu Road, Shanghai 200062, China
| | - Hong Jin
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yu Meng
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Weiping Ye
- Department of Obstetrics and Gynecology, Shanghai Putuo Maternity and Infant Hospital, 517 Tong Pu Road, Shanghai 200062, China
| | - Na Zhang
- Shanghai Jiao Tong University School of Public Health, Shanghai, China
| | - Weidong Wang
- Department of Biostatistics and Epidemiology, School of Public Health and Health Sciences, University of Massachusetts Amherst, Amherst, MA 01002, USA
| | - Haidong Kan
- School of Public Health, Shanghai Institute of Infectious Disease and Biosecurity, Key Lab of Public Health Safety of the Ministry of Education and Key Lab of Health Technology Assessment of the Ministry of Health, Fudan University, Shanghai 200032, China.
| | - Jun Zhang
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Shanghai Jiao Tong University School of Public Health, Shanghai, China.
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Crombie KM, Adams TG, Dunsmoor JE, Greenwood BN, Smits JA, Nemeroff CB, Cisler JM. Aerobic exercise in the treatment of PTSD: An examination of preclinical and clinical laboratory findings, potential mechanisms, clinical implications, and future directions. J Anxiety Disord 2023; 94:102680. [PMID: 36773486 PMCID: PMC10084922 DOI: 10.1016/j.janxdis.2023.102680] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 01/19/2023] [Accepted: 02/03/2023] [Indexed: 02/09/2023]
Abstract
Posttraumatic stress disorder (PTSD) is associated with heightened emotional responding, avoidance of trauma related stimuli, and physical health concerns (e.g., metabolic syndrome, type 2 diabetes, cardiovascular disease). Existing treatments such as exposure-based therapies (e.g., prolonged exposure) aim to reduce anxiety symptoms triggered by trauma reminders, and are hypothesized to work via mechanisms of extinction learning. However, these conventional gold standard psychotherapies do not address physical health concerns frequently presented in PTSD. In addition to widely documented physical and mental health benefits of exercise, emerging preclinical and clinical evidence supports the hypothesis that precisely timed administration of aerobic exercise can enhance the consolidation and subsequent recall of fear extinction learning. These findings suggest that aerobic exercise may be a promising adjunctive strategy for simultaneously improving physical health while enhancing the effects of exposure therapies, which is desirable given the suboptimal efficacy and remission rates. Accordingly, this review 1) encompasses an overview of preclinical and clinical exercise and fear conditioning studies which form the basis for this claim; 2) discusses several plausible mechanisms for enhanced consolidation of fear extinction memories following exercise, and 3) provides suggestions for future research that could advance the understanding of the potential importance of incorporating exercise into the treatment of PTSD.
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Affiliation(s)
- Kevin M Crombie
- The University of Texas at Austin, Department of Psychiatry and Behavioral Sciences, 1601 Trinity Street, Building B, Austin, TX 78712, United States of America.
| | - Tom G Adams
- University of Kentucky, Department of Psychology, 105 Kastle Hill, Lexington, KY 40506-0044, United States of America; Yale School of Medicine, Department of Psychiatry, 300 George St., New Haven, CT 06511, United States of America
| | - Joseph E Dunsmoor
- The University of Texas at Austin, Department of Psychiatry and Behavioral Sciences, 1601 Trinity Street, Building B, Austin, TX 78712, United States of America
| | - Benjamin N Greenwood
- University of Colorado Denver, Department of Psychology, Campus Box 173, PO Box 173364, Denver, CO 80217-3364, United States of America
| | - Jasper A Smits
- The University of Texas at Austin, Department of Psychology, 108 E Dean Keeton St., Austin, TX 78712, United States of America
| | - Charles B Nemeroff
- The University of Texas at Austin, Department of Psychiatry and Behavioral Sciences, 1601 Trinity Street, Building B, Austin, TX 78712, United States of America; Institute for Early Life Adversity Research, The University of Texas at Austin Dell Medical School, 1601 Trinity Street, Building B, Austin, TX 78712, United States of America
| | - Josh M Cisler
- The University of Texas at Austin, Department of Psychiatry and Behavioral Sciences, 1601 Trinity Street, Building B, Austin, TX 78712, United States of America; Institute for Early Life Adversity Research, The University of Texas at Austin Dell Medical School, 1601 Trinity Street, Building B, Austin, TX 78712, United States of America
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Woodburn SC, Asrat HS, Flurer JK, Schwierling HC, Bollinger JL, Vollmer LL, Wohleb ES. Depletion of microglial BDNF increases susceptibility to the behavioral and synaptic effects of chronic unpredictable stress. Brain Behav Immun 2023; 109:127-138. [PMID: 36681359 PMCID: PMC10023455 DOI: 10.1016/j.bbi.2023.01.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 12/22/2022] [Accepted: 01/16/2023] [Indexed: 01/20/2023] Open
Abstract
In the medial prefrontal cortex (PFC), chronic stress reduces synaptic expression of glutamate receptors, leading to decreased excitatory signaling from layer V pyramidal neurons and working memory deficits. One key element driving these changes is a reduction in brain-derived neurotrophic factor (BDNF) signaling. BDNF is a potent mediator of synaptic growth and deficient BDNF signaling has been linked to stress susceptibility. Prior studies indicated that neurons are the primary source of BDNF, but more recent work suggests that microglia are also an important source of BDNF. Adding to this, our work showed that 14 days of chronic unpredictable stress (CUS) reduced Bdnf transcript in PFC microglia, evincing its relevance in the effects of stress. To explore this further, we utilized transgenic mice with microglia-specific depletion of BDNF (Cx3cr1Cre/+:Bdnffl/fl) and genotype controls (Cx3cr1Cre/+:Bdnf+/+). In the following experiments, mice were exposed to a shortened CUS paradigm (7 days) to determine if microglial Bdnf depletion promotes stress susceptibility. Analyses of PFC microglia revealed that Cx3cr1Cre/+:Bdnffl/fl mice had shifts in phenotypic markers and gene expression. In a separate cohort, synaptoneurosomes were collected from the PFC and western blotting was performed for synaptic markers. These experiments showed that Cx3cr1Cre/+:Bdnffl/fl mice had baseline deficits in GluN2B, and that 7 days of CUS additionally reduced GluN2A levels in Cx3cr1Cre/+:Bdnffl/fl mice, but not genotype controls. Behavioral and cognitive testing showed that this coincided with exacerbated stress effects on temporal object recognition in Cx3cr1Cre/+:Bdnffl/fl mice. These results indicate that microglial BDNF promotes glutamate receptor expression in the PFC. As such, mice with deficient microglial BDNF had increased susceptibility to the behavioral and cognitive consequences of stress.
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Affiliation(s)
- Samuel C Woodburn
- Department of Pharmacology & Systems Physiology, University of Cincinnati College of Medicine, Cincinnati, OH, USA; Neuroscience Graduate Program, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Helina S Asrat
- Department of Pharmacology & Systems Physiology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - James K Flurer
- Department of Pharmacology & Systems Physiology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Hana C Schwierling
- Department of Pharmacology & Systems Physiology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Justin L Bollinger
- Department of Pharmacology & Systems Physiology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Lauren L Vollmer
- Department of Pharmacology & Systems Physiology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Eric S Wohleb
- Department of Pharmacology & Systems Physiology, University of Cincinnati College of Medicine, Cincinnati, OH, USA.
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Ballesio A, Zagaria A, Curti DG, Moran R, Goadsby PJ, Rosenzweig I, Lombardo C. Peripheral brain-derived neurotrophic factor (BDNF) in insomnia: A systematic review and meta-analysis. Sleep Med Rev 2023; 67:101738. [PMID: 36577338 DOI: 10.1016/j.smrv.2022.101738] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 12/12/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022]
Abstract
The brain-derived neurotrophic factor (BDNF) is associated with emotional and cognitive functioning, and it is considered a transdiagnostic biomarker for mental disorders. Literature on insomnia related BDNF changes yielded contrasting results and it has never been synthetized using meta-analysis. To fill this gap, we conducted a systematic review and meta-analysis of case-control studies examining the levels of peripheric BDNF in individuals with insomnia and healthy controls using the PRISMA guidelines. PubMed, Scopus, Medline, PsycINFO and CINAHL were searched up to Nov 2022. Nine studies met the inclusion criteria and were assessed using the Newcastle-Ottawa Scale. Eight studies reported sufficient data for meta-analysis. Random-effects models showed lower BDNF in subjects with insomnia (n = 446) than in controls (n = 706) (Hedge's g = -0.86, 95% CI: -1.39 to -0.32, p = .002). Leave-one-out sensitivity analysis confirmed that the pooled effect size was robust and not driven by any single study. However, given the small sample size, the cross-sectional nature of the measurement, and the high heterogeneity of included data, the results should be cautiously interpreted. Progress in the study of BDNF in insomnia is clinically relevant to better understand the mechanisms that may explain the relationship between disturbed sleep and mental disorders.
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Affiliation(s)
- Andrea Ballesio
- Department of Psychology, Sapienza University of Rome, Italy.
| | - Andrea Zagaria
- Department of Psychology, Sapienza University of Rome, Italy
| | | | - Rosalyn Moran
- Department of Neuroimaging, Institute of Psychiatry, Psychology and Neuroscience (IoPPN), King's College London, UK
| | - Peter J Goadsby
- NIHR-Wellcome Trust King's Clinical Research Facility, King's College London UK
| | - Ivana Rosenzweig
- Sleep and Brain Plasticity Centre, Department of Neuroimaging, Institute of Psychiatry, Psychology and Neuroscience (IoPPN), King's College London, London, UK; Sleep Disorders Centre, Guy's and St Thomas' National Health Service Foundation Trust, London, UK
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Shi M, Zhou J, Hu R, Xu H, Chen Y, Wu X, Chen B, Ma R. EA participates in pain transition through regulating KCC2 expression by BDNF-TrkB in the spinal cord dorsal horn of male rats. Neurobiol Pain 2023; 13:100115. [PMID: 36875547 PMCID: PMC9982673 DOI: 10.1016/j.ynpai.2023.100115] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 01/04/2023] [Accepted: 01/04/2023] [Indexed: 06/18/2023]
Abstract
The pathogenesis of chronic pain is complex and poorly treated, seriously affecting the quality of life of patients. Electroacupuncture (EA) relieves pain by preventing the transition of acute pain into chronic pain, but its mechanism of action is still unclear. Here, we aimed to investigate whether EA can inhibit pain transition by increasing KCC2 expression via BDNF-TrkB. We used hyperalgesic priming (HP) model to investigate the potential central mechanisms of EA intervention on pain transition. HP model male rats showed significant and persistent mechanically abnormal pain. Brain derived neurotrophic factor (BDNF) expression and Tropomyosin receptor kinase B (TrkB) phosphorylation were upregulated in the affected spinal cord dorsal horn (SCDH) of HP model rats, accompanied by K+-Cl-- Cotransporter-2 (KCC2) expression was down-regulated. EA significantly increased the mechanical pain threshold in HP model male rats and decreased BDNF and p-TrkB overexpression and upregulated KCC2 expression. Blockade of BDNF with BDNF neutralizing antibody attenuated mechanical abnormal pain in HP rats. Finally, administration of exogenous BDNF by pharmacological methods reversed the EA-induced resistance to abnormal pain. In all, these results suggest that BDNF-TrkB contributes to mechanical abnormal pain in HP model rats and that EA ameliorates mechanical abnormal pain through upregulation of KCC2 by BDNF-TrkB in SCDH. Our study further supports EA as an effective treatment to prevent the transition of acute pain into chronic pain.
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Affiliation(s)
- Mengting Shi
- The Third School of Clinical Medicine, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Jie Zhou
- The Third School of Clinical Medicine, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou, Zhejiang, China
- Department of Acupuncture and Moxibustion, Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Rong Hu
- The Third School of Clinical Medicine, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Haipeng Xu
- The Third School of Clinical Medicine, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Yi Chen
- The Third School of Clinical Medicine, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Xingying Wu
- The Third School of Clinical Medicine, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Bowen Chen
- The Third School of Clinical Medicine, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Ruijie Ma
- The Third School of Clinical Medicine, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou, Zhejiang, China
- Department of Acupuncture and Moxibustion, Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
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Serrao JM, Goodchild CS. Alfaxalone anaesthesia increases brain derived neurotrophic factor levels and preserves postoperative cognition by activating pregnane-X receptors: an in vitro study and a double blind randomised controlled trial. BMC Anesthesiol 2022; 22:401. [PMID: 36564723 PMCID: PMC9789577 DOI: 10.1186/s12871-022-01940-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Accepted: 12/09/2022] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Alfaxalone is a fast acting intravenous anaesthetic with high therapeutic index. It is an analogue of the naturally-occurring neurosteroid allopregnanolone responsible for maintenance of cognition and neuroprotection by activation of brain pregnane X receptors and consequent increased production of mature brain-derived neurotrophic factor (m-BDNF). Two studies are reported here: an in vitro study investigated whether alfaxalone activates human pregnane X receptors (h-PXR) as effectively as allopregnanolone; and a clinical study that measured postoperative changes in serum m-BDNF and cognition in patients after alfaxalone anaesthesia compared with propofol and sevoflurane. METHODS In vitro Activation of h-PXR by allopregnanolone and alfaxalone solutions (206 - 50,000 nM) was measured using human embryonic kidney cells expressing h-PXR hybridised and linked to the firefly luciferase gene. Light emission by luciferase stimulated by each ligand binding with h-PXR was measured. Clinical A double blind prospective randomised study of patients undergoing hip arthroplasty anaesthetised with alfaxalone TIVA (n = 8) or propofol TIVA (n = 3) or propofol plus sevoflurane inhalational anaesthesia (n = 4). The doses of anaesthetics were titrated to the same depth of anaesthesia (BIS 40-60). Subjects' cognitive performance was assessed using the Grooved Pegboard Test, Digit Symbol Substitution Test (DSST) and Mini Mental State examination (MMSE) for 7 days postoperatively. Serum m-BDNF concentrations were measured for 7 postoperative days. RESULTS In vitro Allopregnanolone and alfaxalone both activated h-PXR, alfaxalone being more efficacious than allopregnanolone: 50,000 nM, p = 0.0019; 16,700 nM, p = 0.0472; 5600 nM, p = 0.0031. Clinical Alfaxalone treated subjects scored better than propofol and sevoflurane anaesthetised patients in the cognition tests: (MMSE p = 0.0251; Grooved Pegboard test dominant hand pre v post anaesthesia scores p = 0.8438 for alfaxalone and p = 0.0156 for propofol and propofol/sevoflurane combined). The higher cognition scores were accompanied by higher serum m-BDNF levels in the alfaxalone anaesthetised patients (p < 0.0001). CONCLUSIONS These results suggest that sedation and anaesthesia induced by the synthetic neuroactive steroid alfaxalone may be accompanied by effects normally caused by physiological actions of allopregnanolone at PXR, namely, increased secretion of m-BDNF and consequent neuroprotection and preservation of cognition. TRIAL REGISTRATION The clinical trial was registered on 17/01/2018 with the Australian New Zealand Clinical Trials Registry: registration number ACTRN12618000064202 [Universal Trial Number U1111-1198-0412].
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Affiliation(s)
- Juliet M. Serrao
- Drawbridge Pharmaceuticals P/L, 23 Milton Parade, Malvern, Victoria 3144 Australia
| | - Colin S. Goodchild
- Drawbridge Pharmaceuticals P/L, 23 Milton Parade, Malvern, Victoria 3144 Australia
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Massadeh AM, Alzoubi KH, Melhim AM, Rababa'h AM. Assessing the Influence of Salvia Triloba on Memory Deficit Caused by Sleep Deprivation in the context of Oxidative Stress. Curr Alzheimer Res 2022; 19:440-448. [PMID: 35929624 DOI: 10.2174/1567205019666220805092450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 04/19/2022] [Accepted: 04/26/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND Learning and memory deficit has been reported to be correlated to the oxidative mutilation in the hippocampus. Moreover, sleep deprivation (SD) mitigates memory via distressing oxidative stress balance. In the current report, the prospective neuroprotective role of oral sage (Salvia triloba) extract on cognitive impairment induced by chronic SD was investigated. METHODS The SD was induced in adult male Wistar rats employing a modified multiple platform (8 h/day; for six weeks). Simultaneously, S. triloba extract (375 mg/kg, orally) was administered for six weeks. Thereafter, Radial Arm Water Maze test was utilized to evaluate the spatial learning and memory. Moreover, activities of different hippocampal antioxidant parameters: glutathione peroxidase (GPx), oxidized glutathione (GSSG), reduced glutathione (GSH), catalase, superoxide dismutase (SOD), and the thiobarbituric acid reactive substance (TBARS) were measured in rats' hippocampus. Moreover, the level of brain derived neurotrophic factor (BDNF) was assessed. RESULTS Current results illustrate that chronic SD significantly compromised both memories, both short- and long- term, while sage extract inhibited these consequences. Moreover, sage extract remarkably stabilized the antioxidants enzyme levels which were decreased by SD such as: SOD, catalase, and GPx (P < 0.05), and remarkably augmented the GSH/GSSG ratio in SD rats (P < 0.05). However, no substantial alterations of GSH, TBARS or BDNF levels (P > 0.05) were seen with sage extract administration. CONCLUSION Chronic treatment with sage extract (S. Triloba) precluded SD-induced memory impairment by regularizing antioxidant parameters levels in rats' hippocampus.
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Affiliation(s)
- Adnan M Massadeh
- Department of Medicinal Chemistry and Pharmacognosy, Faculty of Pharmacy, Jordan University of Science and Technology, P.O. Box 3030, Irbid 22110 Jordan
| | - Karem H Alzoubi
- Department of Pharmacy Practice and Pharmacotherapeutics, University of Sharjah, Sharjah, UAE.,Department of Clinical Pharmacy, Faculty of Pharmacy, Jordan University of Science and Technology, P.O. Box 3030, Irbid 22110 Jordan
| | - Amal M Melhim
- Department of Medicinal Chemistry and Pharmacognosy, Faculty of Pharmacy, Jordan University of Science and Technology, P.O. Box 3030, Irbid 22110 Jordan
| | - Abeer M Rababa'h
- Department of Clinical Pharmacy, Faculty of Pharmacy, Jordan University of Science and Technology, P.O. Box 3030, Irbid 22110 Jordan
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Rippey CS, Pietrzak RH, Maruff P, Adams TG. Interactive effects of the BDNF Val66Met polymorphism and posttraumatic stress disorder on cognition in U.S. military veterans. Psychoneuroendocrinology 2022; 142:105820. [PMID: 35679772 DOI: 10.1016/j.psyneuen.2022.105820] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 05/16/2022] [Accepted: 05/30/2022] [Indexed: 12/27/2022]
Abstract
Posttraumatic stress disorder (PTSD) is associated with mild-to-moderate deficits in cognition. The Met allele of the brain-derived neurotrophic factor (BDNF) Val66Met gene may also be associated with deficits in cognition. However, findings are inconsistent and may be sensitive to moderating variables such as psychopathology. While emerging research suggests that PTSD and the Met allele may interact, few studies have replicated this effect or examined the interactive effect of PTSD and the Met allele on subjective cognition. To address this gap, the current study analyzed data from European-American (EA) U.S. military veterans (n = 1244) who participated in the National Health and Resilience in Veterans Study (NHRVS) to examine the main and interactive effects of BDNF Val66Met genotype and probable PTSD on objective and subjective cognition. Results revealed significant (p's < 0.001) interactions between Met allele carrier status and probable PTSD in objective and subjective cognition. Among individuals with probable PTSD (n = 131), the Met allele was associated with poorer objective (p < .001, d = 0.62) and subjective cognition (p = .001, d = 0.53). Among individuals without PTSD (n = 1113), the Met allele was not significantly associated with objective or subjective cognition. These findings suggest that PTSD may moderate the association between Met allele carrier status and cognition. Implications of these results for the mitigation of cognitive dysfunction in older veterans are discussed.
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Lauvås AJ, Lislien M, Holme JA, Dirven H, Paulsen RE, Alm IM, Andersen JM, Skarpen E, Sørensen V, Macko P, Pistollato F, Duale N, Myhre O. Developmental neurotoxicity of acrylamide and its metabolite glycidamide in a human mixed culture of neurons and astrocytes undergoing differentiation in concentrations relevant for human exposure. Neurotoxicology 2022; 92:33-48. [PMID: 35835329 DOI: 10.1016/j.neuro.2022.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 06/29/2022] [Accepted: 07/08/2022] [Indexed: 11/19/2022]
Abstract
Neural stem cells (NSCs) derived from human induced pluripotent stem cells were used to investigate effects of exposure to the food contaminant acrylamide (AA) and its main metabolite glycidamide (GA) on key neurodevelopmental processes. Diet is an important source of human AA exposure for pregnant women, and AA is known to pass the placenta and the newborn may also be exposed through breast feeding after birth. The NSCs were exposed to AA and GA (1 ×10-8 - 3 ×10-3 M) under 7 days of proliferation and up to 28 days of differentiation towards a mixed culture of neurons and astrocytes. Effects on cell viability was measured using Alamar Blue™ cell viability assay, alterations in gene expression were assessed using real time PCR and RNA sequencing, and protein levels were quantified using immunocytochemistry and high content imaging. Effects of AA and GA on neurodevelopmental processes were evaluated using endpoints linked to common key events identified in the existing developmental neurotoxicity adverse outcome pathways (AOPs). Our results suggest that AA and GA at low concentrations (1 ×10-7 - 1 ×10-8 M) increased cell viability and markers of proliferation both in proliferating NSCs (7 days) and in maturing neurons after 14-28 days of differentiation. IC50 for cell death of AA and GA was 5.2 × 10-3 M and 5.8 × 10-4 M, respectively, showing about ten times higher potency for GA. Increased expression of brain derived neurotrophic factor (BDNF) concomitant with decreased synaptogenesis were observed for GA exposure (10-7 M) only at later differentiation stages, and an increased number of astrocytes (up to 3-fold) at 14 and 21 days of differentiation. Also, AA exposure gave tendency towards decreased differentiation (increased percent Nestin positive cells). After 28 days, neurite branch points and number of neurites per neuron measured by microtubule-associated protein 2 (Map2) staining decreased, while the same neurite features measured by βIII-Tubulin increased, indicating perturbation of neuronal differentiation and maturation.
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Affiliation(s)
- Anna Jacobsen Lauvås
- Department of Chemical Toxicology, Norwegian Institute of Public Health (NIPH), Oslo, Norway
| | - Malene Lislien
- Department of Chemical Toxicology, Norwegian Institute of Public Health (NIPH), Oslo, Norway
| | - Jørn Andreas Holme
- Department of Chemical Toxicology, Norwegian Institute of Public Health (NIPH), Oslo, Norway
| | - Hubert Dirven
- Department of Chemical Toxicology, Norwegian Institute of Public Health (NIPH), Oslo, Norway
| | - Ragnhild Elisabeth Paulsen
- Section for Pharmacology and Pharmaceutical Biosciences, Department of Pharmacy, University of Oslo, Norway
| | - Inger Margit Alm
- Department of Chemical Toxicology, Norwegian Institute of Public Health (NIPH), Oslo, Norway
| | - Jill Mari Andersen
- Department of Chemical Toxicology, Norwegian Institute of Public Health (NIPH), Oslo, Norway
| | - Ellen Skarpen
- Core Facility for Advanced Light Microscopy, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
| | - Vigdis Sørensen
- Core Facility for Advanced Light Microscopy, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
| | - Peter Macko
- European Commission, Joint Research Centre (JRC), Ispra, Italy
| | | | - Nur Duale
- Department of Chemical Toxicology, Norwegian Institute of Public Health (NIPH), Oslo, Norway
| | - Oddvar Myhre
- Department of Chemical Toxicology, Norwegian Institute of Public Health (NIPH), Oslo, Norway.
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Dwiningsih SR, Meilani C, Hadi S. Brain Derived Neurotrophic Factor as a Non-invasive Biomarker for Detection of Endometriosis. J Reprod Infertil 2022; 23:207-212. [PMID: 36415495 PMCID: PMC9666593 DOI: 10.18502/jri.v23i3.10012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 01/12/2022] [Indexed: 03/19/2024] Open
Abstract
BACKGROUND Endometriosis is an estrogen-dependent chronic progressive gynecological disease that affects around 10% of women of reproductive age. A recent study shows that brain-derived neurotrophic factor (BDNF) has the potential as a clinical marker in the diagnosis of endometriosis. We aimed to determine whether BDNF levels are correlated with pain scores associated with endometriosis. METHODS Fifty women who underwent laparoscopy surgery at Dr. Soetomo General Hospital and Dr. Ramelan Navy Hospital were prospectively recruited from October 2017 until August 2018. A blood sample was obtained before surgery and BDNF was measured using the Human BDNF Quantakine® kit. The relationship of BDNF levels in serum with the diseases's level of pain and stages was compared between cases and controls. BDNF validity as an endometriosis diagnosis biomarker was assessed using receiver operating characteristic (ROC) analysis. RESULTS Serum concentrations of BDNF were significantly greater in women with endometriosis (30.42±7.41 pg/ml), compared to controls (25.66±3.30 pg/ml). Serum concentrations of BDNF were moderately correlated with the patient's reported pain scores (r=0.44, p=0.01). Receiver operating characteristic curve analysis confirmed the potential of BDNF in the diagnosis of endometriosis. Using a cut-off value of 27.06 pg/ml, the sensitivity and specificity were reported to be 66.7% and 64.3%, respectively. CONCLUSION BDNF serum levels in endometriosis women are significantly higher than in women without the disorder. BDNF serum level seems to have low accuracy and predictive value as a diagnostic marker for endometriosis. However, there was a moderate relationship between BDNF serum level and the degree of pain.
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Affiliation(s)
- Sri Ratna Dwiningsih
- Department of Obstetrics and Gynaecology, Faculty of Medicine, Airlangga University, East Java, Indonesia
| | - Christina Meilani
- Department of Obstetrics and Gynaecology, Faculty of Medicine, Airlangga University, East Java, Indonesia
| | - Samsul Hadi
- Department of Obstetrics and Gynaecology, Faculty of Medicine, Airlangga University, East Java, Indonesia
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Madhu LN, Somayaji Y, Shetty AK. Promise of irisin to attenuate cognitive dysfunction in aging and Alzheimer's disease. Ageing Res Rev 2022; 78:101637. [PMID: 35504553 DOI: 10.1016/j.arr.2022.101637] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 04/25/2022] [Accepted: 04/27/2022] [Indexed: 01/19/2023]
Abstract
Strategies proficient for relieving cognitive impairments in aging and Alzheimer's disease (AD) have an enormous impact. Regular physical exercise (PE) can prevent age-related dementia and slow down AD progression. However, such a lifestyle change is likely not achievable for individuals displaying age-related frailty. Hence, drugs or biologics that could simulate the benefits of PE have received much attention. Previous studies suggested that the fibronectin-domain III containing 5 (FNDC5) underlies the PE-mediated improved cognitive function. A recent study reports that PE-related cognitive benefits in aging and AD are mediated by irisin, the cleaved form of FNDC5 released into the blood after PE. Such a conclusion was apparent from the deletion of irisin through a global knockout of FNDC5, leading to the loss of PE-induced cognitive benefits or inducing memory impairments in adult or aged models. Furthermore, in AD models, peripherally administered irisin mimicked the cognitive benefits of PE by modulating neuroinflammation. This short review discusses the promise of irisin to simulate the cognitive benefits of PE in age- and AD-related dementia. In addition, critical issues such as how blood-borne irisin acts on neural cells, the role of the brain-derived neurotrophic factor in irisin-mediated cognitive benefits, and irisin's ability to inhibit neuroinflammatory cascades in aging and AD are discussed.
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Gupta V, Chitranshi N, Gupta V, You Y, Rajput R, Paulo JA, Mirzaei M, van den Buuse M, Graham SL. TrkB receptor agonist 7,8 dihydroxyflavone is protective against the inner retinal deficits induced by experimental glaucoma. Neuroscience 2022; 490:36-48. [PMID: 35217121 PMCID: PMC9142859 DOI: 10.1016/j.neuroscience.2022.01.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 01/17/2022] [Accepted: 01/25/2022] [Indexed: 12/31/2022]
Abstract
Glaucoma is an age-related neurodegenerative disorder characterized by retinal ganglion cell (RGC) degeneration and excavation of the optic nerve head (ONH). It is associated with an increase in intraocular pressure (IOP) and progressive decline in the visual field. Reduction in the retrograde axonal transport of neurotrophic factors such as brain-derived neurotrophic factor (BDNF) from the brain to the neuronal cell bodies in retina, has been suggested as one of the key mechanisms underlying selective degeneration of ganglion cells and optic nerve in glaucoma. Multiple studies have indicated that BDNF and its high affinity receptor Tropomyosin receptor kinase B (TrkB) play crucial roles in survival of RGCs and that upregulating BDNF/TrkB signalling using gene therapy can protect the ganglion cells against degeneration. This study corroborates previous findings and demonstrates that glaucoma is associated with downregulation of TrkB downstream signalling and enhanced levels of amyloid β (Aβ 1-42) accumulation in the retina. 7,8 dihydroxyflavone (7,8 DHF) is a TrkB agonist and regular administration of this compound imparted significant protection against loss of GCL density and preserved inner retinal function in experimental glaucoma models. 7,8 DHF treatment stimulated activation of TrkB intracellular signalling as well as ameliorated the increase in the levels of soluble Aβ (1-42) in the retinas of rats and mice exposed to high IOP. The protective effects of 7,8 DHF were also evident in BDNF+/- mice indicating that TrkB agonist mediated activation of TrkB signalling was not altered upon BDNF allelic impairment. These data support BDNF/TrkB axis as a promising therapeutic target in glaucoma and highlight that the detrimental effects of high IOP exposure can be compensated by the exogenous administration of a TrkB agonist.
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Affiliation(s)
- Vivek Gupta
- Department of Clinical Medicine, Faculty of Medicine, Health and Human Sciences, Macquarie university, NSW, Australia.
| | - Nitin Chitranshi
- Department of Clinical Medicine, Faculty of Medicine, Health and Human Sciences, Macquarie university, NSW, Australia
| | - Veer Gupta
- School of Medicine, Deakin University, VIC, Australia
| | - Yuyi You
- Department of Clinical Medicine, Faculty of Medicine, Health and Human Sciences, Macquarie university, NSW, Australia; Save Sight Institute, University of Sydney, NSW, Australia
| | - Rashi Rajput
- Department of Clinical Medicine, Faculty of Medicine, Health and Human Sciences, Macquarie university, NSW, Australia
| | - Joao A Paulo
- Department of Cell Biology, Harvard Medical School, Boston, Massachusetts, 02115, United States
| | - Mehdi Mirzaei
- Department of Clinical Medicine, Faculty of Medicine, Health and Human Sciences, Macquarie university, NSW, Australia
| | - Maarten van den Buuse
- School of Psychology and Public Health, La Trobe University, Melbourne, VIC, Australia; College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, QLD, Australia; Department of Pharmacology, University of Melbourne, Melbourne, VIC, Australia
| | - Stuart L Graham
- Department of Clinical Medicine, Faculty of Medicine, Health and Human Sciences, Macquarie university, NSW, Australia; Save Sight Institute, University of Sydney, NSW, Australia
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Majdi Yazdi G, Vaezi G, Hojati V, Mohammad-Zadeh M. The Effect of 6-gingerol on Growth Factors and Apoptosis Indices in Rats Exposed to Gold Nanoparticles. Basic Clin Neurosci 2021; 12:301-307. [PMID: 34917289 PMCID: PMC8666918 DOI: 10.32598/bcn.2021.357.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Revised: 11/03/2019] [Accepted: 04/04/2020] [Indexed: 11/20/2022] Open
Abstract
Introduction Research has shown that gold nanoparticles (AuNPs) can damage the physiological processes of brain tissue. Given the antioxidant properties of Gingerol (GING), this study aimed to determine the protective effect of 6-gingerol on hippocampal levels of Brain-Derived Neurotrophic Factor (BDNF), Nerve Growth Factor (NGF), DNA oxidative damage, and the amount of Bax and Bcl2 apoptosis indices of rats exposed to AuNPs. Methods A total of 42 male Wistar rats were divided into four groups: control (30 days 0.5 mL saline), AuNPs (one time injection of 0.5 mL AuNPs, 200 ppm and 60 Nm + 30 days 0.5 mL saline), AuNPs+GING 50 (one time injection of 0.5 mL AuNPs, 200 ppm and 60 Nm + 30 days 0.5 mL density of gingerol 50 mg/kg), and AuNPs+GING100 (one time injection of 0.5 mL AuNPs, 200 ppm and 60 Nm + 30 days 0.5 mL density of gingerol 100 mg/kg). At the end of the treatment period, the hippocampal levels of NGF, BDNF, 8-hydroxy-desoxyguanosine (8-HOdG), and apoptotic indices of Bax and Bcl-2 were assessed with the ELISA method. Results Compared with the AuNPs group, hippocampal levels of BDNF, NGF, and Bcl-2 in rats in the AuNPs+GING 50 and AuNPs+GING 100 groups significantly increased dose-dependently. However, the hippocampal levels of Bax and 8-HOdG significantly decreased dose-dependently (P<0.05). Conclusion According to obtained results, gingerol may improve hippocampal BDNF and NGF levels in rats exposed to AuNPs, probably by reducing apoptosis and oxidative DNA damage.
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Affiliation(s)
- Ghasem Majdi Yazdi
- Department of Biology, Faculty of Basic Sciences, Damghan Branch, Islamic Azad University, Damghan, Iran
| | - Gholamhasan Vaezi
- Department of Biology, Faculty of Basic Sciences, Damghan Branch, Islamic Azad University, Damghan, Iran
| | - Vida Hojati
- Department of Biology, Faculty of Basic Sciences, Damghan Branch, Islamic Azad University, Damghan, Iran
| | - Mohammad Mohammad-Zadeh
- Department of Physiology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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Ma JJ, Zhang TY, Diao XT, Yao L, Li YX, Suo ZW, Yang X, Hu XD, Liu YN. BDNF modulated KCC2 ubiquitylation in spinal cord dorsal horn of mice. Eur J Pharmacol 2021; 906:174205. [PMID: 34048740 DOI: 10.1016/j.ejphar.2021.174205] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 05/21/2021] [Accepted: 05/21/2021] [Indexed: 10/21/2022]
Abstract
The K+-Cl- co-transporter 2 (KCC2) is a neuron-specific Cl- extruder in the dorsal horn of spinal cord. The low intracellular Cl- concentration established by KCC2 is critical for GABAergic and glycinergic systems to generate synaptic inhibition. Peripheral nerve lesions have been shown to cause KCC2 dysfunction in adult spinal cord through brain-derived neurotrophic factor (BDNF) signaling, which switches the hyperpolarizing inhibitory transmission to be depolarizing and excitatory. However, the mechanisms by which BDNF impairs KCC2 function remain to be elucidated. Here we found that BDNF treatment enhanced KCC2 ubiquitination in the dorsal horn of adult mice, a post-translational modification that leads to KCC2 degradation. Our data showed that spinal BDNF application promoted KCC2 interaction with Casitas B-lineage lymphoma b (Cbl-b), one of the E3 ubiquitin ligases that are involved in the spinal processing of nociceptive information. Knockdown of Cbl-b expression decreased KCC2 ubiquitination level and attenuated the pain hypersensitivity induced by BDNF. Spared nerve injury significantly increased KCC2 ubiquitination, which could be reversed by inhibition of TrkB receptor. Our data implicated that KCC2 was one of the important pain-related substrates of Cbl-b and that ubiquitin modification contributed to BDNF-induced KCC2 hypofunction in the spinal cord.
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Affiliation(s)
- Juan-Juan Ma
- Department of Molecular Pharmacology, School of Pharmacy, Lanzhou University, Lanzhou, Gansu, 730000, PR China
| | - Tian-Yu Zhang
- Department of Molecular Pharmacology, School of Pharmacy, Lanzhou University, Lanzhou, Gansu, 730000, PR China
| | - Xin-Tong Diao
- Department of Molecular Pharmacology, School of Pharmacy, Lanzhou University, Lanzhou, Gansu, 730000, PR China
| | - Lin Yao
- Department of Molecular Pharmacology, School of Pharmacy, Lanzhou University, Lanzhou, Gansu, 730000, PR China
| | - Yin-Xia Li
- Department of Molecular Pharmacology, School of Pharmacy, Lanzhou University, Lanzhou, Gansu, 730000, PR China
| | - Zhan-Wei Suo
- Department of Molecular Pharmacology, School of Pharmacy, Lanzhou University, Lanzhou, Gansu, 730000, PR China
| | - Xian Yang
- Department of Molecular Pharmacology, School of Pharmacy, Lanzhou University, Lanzhou, Gansu, 730000, PR China
| | - Xiao-Dong Hu
- Department of Molecular Pharmacology, School of Pharmacy, Lanzhou University, Lanzhou, Gansu, 730000, PR China.
| | - Yan-Ni Liu
- Department of Molecular Pharmacology, School of Pharmacy, Lanzhou University, Lanzhou, Gansu, 730000, PR China.
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21
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Das M, Jaya Balan D, Kasi PD. Mitigation of oxidative stress with dihydroactinidiolide, a natural product against scopolamine-induced amnesia in Swiss albino mice. Neurotoxicology 2021; 86:149-161. [PMID: 34371027 DOI: 10.1016/j.neuro.2021.08.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 08/04/2021] [Accepted: 08/04/2021] [Indexed: 10/20/2022]
Abstract
The present work describes the neuroprotective efficacy of DHAc under escalated oxidative stress condition in scopolamine-induced amnesic mice. During the toxicity test of DHAc in mice, the acute dose (LD50) is found to be 3.468 mg/kg bw and the sub-acute dose is 0.68 mg/kg bw. Improved cognitive and learning abilities are observed in Morris water maze and Y-maze test in 10 days DHAc (0.68 mg/kg bw) treated scopolamine-induced male Swiss albino mice. In the molecular level these changes are monitored as reduced oxidative load followed by significantly lower lipid peroxidation and protein carbonylation, increased superoxide dismutase, catalase, acetylcholinesterase, caspase-3 activity and glutathione content followed by higher expression of anti apoptotic protein bcl-2 in mice brain as compared to scopolamine (1 mg/kg bw) treated mice. Meanwhile real time PCR shows higher expression of brain derived neurotrophic factor (BDNF) and synaptophysin in DHAc pretreated scopolamine treated mice brain. HPLC analysis suggested its possible blood brain barrier crossing ability. Overall DHAc reversed behavioral anomalies in the scopolamine treated mice via oxidative stress quenching, enhancing antioxidative enzyme activity, enhancing BDNF and synaptophysin mRNA levels and reducing expression of apoptotic protein Bax.
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Affiliation(s)
- Mamali Das
- Department of Biotechnology, Alagappa University (Science Campus), Karaikudi, 630003, TN, India
| | - Devasahayam Jaya Balan
- Department of Biotechnology, Alagappa University (Science Campus), Karaikudi, 630003, TN, India
| | - Pandima Devi Kasi
- Department of Biotechnology, Alagappa University (Science Campus), Karaikudi, 630003, TN, India.
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Ney LJ, Matthews A, Nicholson E, Zuj D, Ken Hsu CM, Steward T, Graham B, Harrison B, Nichols D, Felmingham K. BDNF genotype Val66Met interacts with acute plasma BDNF levels to predict fear extinction and recall. Behav Res Ther 2021; 145:103942. [PMID: 34340176 DOI: 10.1016/j.brat.2021.103942] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 06/17/2021] [Accepted: 07/28/2021] [Indexed: 02/06/2023]
Abstract
Brain-derived neurotropic factor (BDNF) is a potent regulator of memory processes and is believed to influence the consolidation of fear extinction memories. No previous human study has tested the effect of unstimulated BDNF on fear extinction recall, and no study has tested the association between plasma BDNF levels and psychophysiological responding during an extinction paradigm. We tested the association between fear responses during a 2-day differential conditioning, extinction and extinction recall paradigm and Val66Met genotype in a group of healthy participants (N = 191). There were no group differences during habituation or acquisition. Met allele carriers compared to Val homozygotes displayed higher responses to the CS + compared to the CS- during extinction learning and had higher responding to both the CS+ and CS- during extinction recall. Plasma levels of BDNF protein that were collected in a sub-sample of the group (n = 56) moderated the effect of Met allele presence, such that lower BDNF level was associated with higher skin conductance response in the Met but not Val group to the CS+ during extinction learning and to both the CS+ and CS- during extinction recall. The current results extend previous observations of a Val66Met effect during fear extinction learning to extinction recall and show for the first time that these effects are moderated by plasma BDNF level.
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Affiliation(s)
- Luke John Ney
- School of Psychological Sciences, University of Tasmania, Australia.
| | - Allison Matthews
- School of Psychological Sciences, University of Tasmania, Australia
| | - Emma Nicholson
- School of Psychological Sciences, University of Melbourne, Australia
| | - Daniel Zuj
- Department of Psychology, Swansea University, United Kingdom
| | | | - Trevor Steward
- School of Psychological Sciences, University of Melbourne, Australia
| | - Bronwyn Graham
- School of Psychology, University of New South Wales, Australia
| | - Ben Harrison
- Melbourne Neuropsychiatry Centre, Department of Psychiatry, University of Melbourne & Melbourne Health, Australia
| | - David Nichols
- Central Science Laboratory, University of Tasmania, Australia
| | - Kim Felmingham
- School of Psychological Sciences, University of Melbourne, Australia
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Lee CW, Fang YP, Chu MC, Chung YJ, Chi H, Tang CW, So EC, Lin HC, Lin HC. Differential mechanisms of synaptic plasticity for susceptibility and resilience to chronic social defeat stress in male mice. Biochem Biophys Res Commun 2021; 562:112-118. [PMID: 34049204 DOI: 10.1016/j.bbrc.2021.05.064] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 05/18/2021] [Indexed: 10/21/2022]
Abstract
Mood dysregulation refers to the inability of a person to control their negative emotions, and it is linked to various stressful experiences. Dysregulated neural synaptic plasticity and actin-filament dynamics are important regulators of stress response in animal models. However, until now, there is no evidence to differential the mechanisms of synaptic plasticity and actin-filament dynamics in stress susceptibility and stress-resistant. Here we found that depression-like behaviour was observed in the susceptible group following chronic social defeat stress (CSDS) exposure, but not in stress-resistant mice. High-frequency stimulation-induced long-term potentiation (LTP) was impaired in the CSDS-induced depression-susceptible group. Further, the levels of pro-brain derived neurotrophic factor (BDNF), mature BDNF, PSD-95, phosphorylated CaMKII, and phosphorylated Cofilin, an actin-filament dynamics regulator, were reduced in CSDS-induced depression-susceptible mice unlike in stress-resistant mice. These results demonstrate that synaptic plasticity-related molecules, such as BDNF and phosphorylated Cofilin, are important for maintaining synaptic functions and structure in mice that experience more stress.
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Affiliation(s)
- Chi-Wei Lee
- Department and Institute of Physiology, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Department and Institute of Physiology, School of Medicine, National Yang-Ming University, Taipei, Taiwan; Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University and National Health Research Institute, Taipei, Taiwan
| | - Yen-Po Fang
- Department of Orthopaedic Surgery, An Nan Hospital, China Medical University, Tainan, Taiwan
| | - Ming-Chia Chu
- Department and Institute of Physiology, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Department and Institute of Physiology, School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Yueh-Jung Chung
- Department and Institute of Physiology, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Department and Institute of Physiology, School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Hsiang Chi
- Department and Institute of Physiology, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Department and Institute of Physiology, School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Chih-Wei Tang
- Department of Neurology, Far Eastern Memorial Hospital, New Taipei City, Taiwan
| | - Edmund Cheung So
- Department of Anesthesia and Medical Research, An Nan Hospital, China Medical University, Tainan City, Taiwan; Graduate Institute of Medical Sciences, Chang Jung Christian University, Tainan City, Taiwan
| | - Hsin-Chuan Lin
- Department and Institute of Physiology, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Department and Institute of Physiology, School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Hui-Ching Lin
- Department and Institute of Physiology, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Department and Institute of Physiology, School of Medicine, National Yang-Ming University, Taipei, Taiwan; Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University and National Health Research Institute, Taipei, Taiwan; Brain Research Center, National Yang-Ming University, Taipei, Taiwan.
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24
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Afsharfar M, Shahraki M, Shakiba M, Asbaghi O, Dashipour A. The effects of magnesium supplementation on serum level of brain derived neurotrophic factor (BDNF) and depression status in patients with depression. Clin Nutr ESPEN 2021; 42:381-6. [PMID: 33745609 DOI: 10.1016/j.clnesp.2020.12.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 12/21/2020] [Accepted: 12/27/2020] [Indexed: 11/21/2022]
Abstract
OBJECTIVE Recent researches suggest that there is a relationship between the pathogenesis of depression and serum Brain Derived Neurotrophic Factor (BDNF) levels. Therefore, the purpose of this clinical trial was to determine effect of magnesium supplementation on serum Level of BDNF, magnesium and depression status in patients with depression. METHODS A double blind randomized clinical trial was conducted on 46 depressed subjects. The participants were randomly allocated into the magnesium (MG) and the placebo (PG) group and received 500 mg magnesium and placebo daily for 8 weeks. Beck's test was conducted and blood samples were taken at baseline and after the intervention period for analysis of serum magnesium and BDNF. RESULTS No significant differences were observed in assessed variables between the two groups at the baseline. At the end of intervention, supplementation with magnesium oxide had a significant effect on Beck's test (P = 0.01) and serum magnesium (P = 0.001), but had no significant effect on BDNF levels (P = 0.507) between the two groups. CONCLUSIONS Daily intake of 500 mg magnesium oxide for at least 8 weeks improved Beck's test score and serum magnesium in depressed patients, but had no significant effect on BDNF levels between the two groups, Which Further research is recommended.
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25
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Tozzi F, Rutigliano G, Borsò M, Falcicchia C, Zucchi R, Origlia N. T 1AM-TAAR1 signalling protects against OGD-induced synaptic dysfunction in the entorhinal cortex. Neurobiol Dis 2021; 151:105271. [PMID: 33482355 DOI: 10.1016/j.nbd.2021.105271] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 12/04/2020] [Accepted: 01/15/2021] [Indexed: 02/07/2023] Open
Abstract
Abnormalities in thyroid hormones (TH) availability and/or metabolism have been hypothesized to contribute to Alzheimer's disease (AD) and to be a risk factor for stroke. Recently, 3-iodothyronamine (T1AM), an endogenous amine putatively derived from TH metabolism, gained interest for its ability to promote learning and memory in the mouse. Moreover, T1AM has been demonstrated to rescue the β-Amyloid dependent LTP impairment in the entorhinal cortex (EC), a brain area crucially involved in learning and memory and early affected during AD. In the present work, we have investigated the effect of T1AM on ischemia-induced EC synaptic dysfunction. In EC brain slices exposed to oxygen-glucose deprivation (OGD), we demonstrated that the acute perfusion of T1AM (5 μM) was capable of preventing ischemia-induced synaptic depression and that this protective effect was mediated by the trace amine-associated receptor 1 (TAAR1). Moreover, we demonstrated that activation of the BDNF-TrkB signalling is required for T1AM action during ischemia. The protective effect of T1AM was more evident when using EC slices from transgenic mutant human APP (mhAPP mice) that are more vulnerable to the effect of OGD. Our results confirm that the TH derivative T1AM can rescue synaptic function after transient ischemia, an effect that was also observed in a Aβ-enriched environment.
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Affiliation(s)
- Francesca Tozzi
- Bio@SNS laboratory, Scuola Normale Superiore, 56124 Pisa, Italy
| | | | - Marco Borsò
- Department of Pathology, University of Pisa, 56100 Pisa, Italy
| | - Chiara Falcicchia
- Institute of Neuroscience of the Italian National Research Council (CNR), Pisa, Italy
| | - Riccardo Zucchi
- Department of Pathology, University of Pisa, 56100 Pisa, Italy
| | - Nicola Origlia
- Institute of Neuroscience of the Italian National Research Council (CNR), Pisa, Italy.
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26
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Siegel AN, Rodrigues N, Nasri F, Wilkialis L, Lipsitz O, Lee Y, Gill H, Subramaniapillai M, Phan L, Majeed A, Lui LMW, Rashidian H, Ho R, Toma S, Goldstein BI, Mansur RB, McIntyre RS, Rosenblat JD. Novel therapeutic targets in mood disorders: Pentoxifylline (PTX) as a candidate treatment. Prog Neuropsychopharmacol Biol Psychiatry 2021; 104:110032. [PMID: 32634540 DOI: 10.1016/j.pnpbp.2020.110032] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 06/24/2020] [Accepted: 06/28/2020] [Indexed: 01/22/2023]
Abstract
Numerous pharmacological treatments for mood disorders are currently available; however, rates of treatment resistance, relapse and recurrence remain high. Therefore, novel treatments acting outside of the conventionally targeted monoamine system are urgently needed to improve patient outcomes. Emerging and converging evidence suggests that immune dysfunction, oxidative stress, impaired cerebral blood flow (CBF) and decreased neurotrophic factors all contribute to mood disorder pathophysiology and are therefore treatment targets of interest. Pentoxifylline (PTX) is a phosphodiesterase inhibitor with potent anti-inflammatory and antioxidant effects, with additional pleiotropic effects that lead to improved CBF and increases in brain derived neurotrophic factor (BDNF) levels. The direct effect of non-specific phosphodiesterase inhibition may also improve alertness and cognitive function through enhancing second messenger systems. Replicated preclinical studies have demonstrated antidepressant-like effects in animal models. Small preliminary clinical trials have demonstrated promising results for antidepressant and procognitive effects, however, have yet to be replicated in larger mood disorder samples. Only one randomized clinical trial (RCT) specifically assessed the effects of adjunctive PTX in major depressive disorder (MDD), showing clinically and statistically significant antidepressant effects compared to placebo. No studies have assessed PTX in bipolar disorder (BD), where inflammation and altered CBF have also been strongly implicated. Taken together, PTX presents as a promising pleiotropic agent with several potential novel mechanisms of action meriting further evaluation in clinical trials to evaluate target engagement, antidepressant, procognitive and mood stabilizing effects.
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Affiliation(s)
- Ashley N Siegel
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, ON, Canada
| | - Nelson Rodrigues
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, ON, Canada
| | - Flora Nasri
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, ON, Canada
| | - Linas Wilkialis
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, ON, Canada
| | - Orly Lipsitz
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, ON, Canada
| | - Yena Lee
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, ON, Canada; Institute of Medical Science, University of Toronto, Toronto, ON, Canada
| | - Hartej Gill
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, ON, Canada; Institute of Medical Science, University of Toronto, Toronto, ON, Canada
| | | | - Lee Phan
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, ON, Canada; Institute of Medical Science, University of Toronto, Toronto, ON, Canada
| | - Amna Majeed
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, ON, Canada
| | - Leanna M W Lui
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, ON, Canada
| | - Houman Rashidian
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, ON, Canada; Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - Roger Ho
- Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Institute for Health Innovation and Technology (iHealthtech) National University of Singapore, Singapore
| | - Simina Toma
- Department of Psychiatry, University of Toronto, Toronto, ON, Canada; Department of Psychiatry, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - Benjamin I Goldstein
- Department of Psychiatry, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - Rodrigo B Mansur
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, ON, Canada; Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - Roger S McIntyre
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, ON, Canada; Department of Psychiatry, University of Toronto, Toronto, ON, Canada; Department of Pharmacology, University of Toronto, Toronto, ON, Canada; Brain and Cognition Discovery Foundation, Toronto, ON, Canada
| | - Joshua D Rosenblat
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, ON, Canada; Department of Psychiatry, University of Toronto, Toronto, ON, Canada.
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Liu Y, Yan D, Wang Y, Zhang X, Wang N, Jiao Y, Yan H. Subchronic exposure to acrylamide caused behaviour disorders and related pathological and molecular changes in rat cerebellum. Toxicol Lett 2021; 340:23-32. [PMID: 33421551 DOI: 10.1016/j.toxlet.2021.01.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 12/18/2020] [Accepted: 01/04/2021] [Indexed: 12/15/2022]
Abstract
Acrylamide (ACR) is a neurotoxin with moderate acute toxicity. Significant level of ACR exists in diet and drinking water. Occupational exposure causes motor function impairment, but the underlying mechanisms remain poorly defined. This study aims to explore whether microtubule-associated protein tau phosphorylation, excessive activation of protein kinase RNA-like endoplasmic reticulum kinase (PERK) signaling pathway and BDNF decline are involved in cerebellar neuron lesions and motor dysfunction after subchronic ACR exposure. The present results displayed that ACR caused gait abnormality and hind foot splay in rats. The HE and Nissl staining results revealed that ACR exposure aggravated cerebellar neuron lesions especially in purkinje cell layer. ACR markedly increased tau phosphorylation at Ser262 and Ser396/404 and inhibited the level of phosphorylation of glycogen synthase kinase 3β (P-GSK3β) at Ser9. The PERK-eukaryotic initiation factor-2α (eIF2α)-activating transcription factor 4 (ATF4) pathway was activated to promote CHOP expression and then to accelerate neuron lesions. Furthermore, ACR significantly decreased P-CREB at Ser133 and BDNF expression, which might be related to the inhibition of upstream signals from extracellular signal-related kinase (ERK) and protein kinase B (Akt). This work helps to elucidate the underlying mechanisms of ACR-induced neurotoxicity and present a potential target for prevention against the neurotoxicity.
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Affiliation(s)
- Ying Liu
- Department of Health Toxicology, MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong-Road, Wuhan, 430030, PR China
| | - Dandan Yan
- Department of Pathology, Renmin Hospital of Wuhan University, 238 Jiefang-Road, Wuchang District, Wuhan, 430060, PR China
| | - Yiqi Wang
- Department of Health Toxicology, MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong-Road, Wuhan, 430030, PR China
| | - Xing Zhang
- Department of Health Toxicology, MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong-Road, Wuhan, 430030, PR China
| | - Na Wang
- Department of Health Toxicology, MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong-Road, Wuhan, 430030, PR China
| | - Yang Jiao
- Department of Health Toxicology, MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong-Road, Wuhan, 430030, PR China
| | - Hong Yan
- Department of Health Toxicology, MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong-Road, Wuhan, 430030, PR China.
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Antony R, Li Y. BDNF secretion from C2C12 cells is enhanced by methionine restriction. Biochem Biophys Res Commun 2020; 533:1347-1351. [PMID: 33069357 DOI: 10.1016/j.bbrc.2020.10.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 10/08/2020] [Indexed: 11/24/2022]
Abstract
Brain derived neurotrophic factor (BDNF) is produced in skeletal muscle as a myokine that plays a role in muscle metabolism. However, how metabolic changes affect skeletal muscle BDNF expression and release remains to be fully understood. Amino acid restrictions such as methionine restriction (MR) are considered as an alternative fasting approach. Here we reported that in C2C12 myotubes, MR enhanced BDNF release, which was measured using ELISA, RT-qPCR, cell immunostaining, and Western blot. Inhibition of protein transport pathway blocked the MR enhanced BDNF release, confirming that MR-induced BDNF release involved classic protein secretory pathway. MR increased l-lactate product in media, suggesting that MR promoted glycolysis. Treatment with 2-deoxy glucose (2-DG) attenuated lactate production as well as BDNF release, suggesting that glycolysis is involved in the enhanced BDNF release induced by MR. Moreover, treatment with l-Lactate, the end-product of glycolysis, enhanced BDNF gene expression and release in control cells in a dose dependent manner, suggesting lactate produced by glycolysis may mediate the enhanced BDNF release by MR. Overall, the results of this study suggest that MR promotes BDNF secretion from C2C12 myotubes at least partially via enhancing glycolysis and lactate production.
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Affiliation(s)
- Ryan Antony
- Division of Basic Biomedical Sciences, Sanford School of Medicine, University of South Dakota, Vermillion, SD, 57069, USA
| | - Yifan Li
- Division of Basic Biomedical Sciences, Sanford School of Medicine, University of South Dakota, Vermillion, SD, 57069, USA.
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29
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Sun XJ, Zhao X, Xie JN, Wan H. Crocin alleviates schizophrenia-like symptoms in rats by upregulating silent information regulator-1 and brain derived neurotrophic factor. Compr Psychiatry 2020; 103:152209. [PMID: 33045669 DOI: 10.1016/j.comppsych.2020.152209] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 08/26/2020] [Accepted: 09/17/2020] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND In neonatal rats, MK-801 treatments can produce schizophrenia-like symptoms. Crocin is a water soluble carotenoid in Saffron that exerts potent neuroprotective effects. This work aimed to demonstrate the function of crocin in the alleviation of motor and cognitive impairments elicited by MK-801 in a neonatal rodent schizophrenia model, and to illustrate the underlying molecular mechanisms. METHODS Rats were treated with vehicle, MK-801 (1 mg/kg), MK-801 + 25 mg/kg crocin, or MK-801 + 50 mg/kg crocin. Motor learning and coordination, locomotion and exploratory activities, as well as spatial memory were assessed using the rotarod test, pen field test, and the Morris water maze test, respectively. Relative mRNA and protein levels of genes of interest were analyzed using qRT-PCR and Western blot assays, respectively. RESULTS In the hippocampus of rats with MK-801-elicited schizophrenia, administration of crocin elevated the expression of silent information regulator-1 (SIRT1) and brain derived neurotrophic factor (BDNF), and relieved the oxidative stress. The learning deficits and motor perturbations caused by MK-801 treatments were also alleviated by the crocin administration. CONCLUSION Collectively, crocin has exerted neuroprotective effects in the rat model of MK-801-elicited schizophrenia, via regulations of SIRT1 and downstream BDNF expression in the hippocampus.
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Affiliation(s)
- Xi-Juan Sun
- Open Mental Department of Qingdao Mental Health Center, Qingdao University, No. 299 Nanjing Road, Qingdao 266034, Shandong, China
| | - Xin Zhao
- Open Mental Department of Qingdao Mental Health Center, Qingdao University, No. 299 Nanjing Road, Qingdao 266034, Shandong, China
| | - Jun-Ning Xie
- Open Mental Department of Qingdao Mental Health Center, Qingdao University, No. 299 Nanjing Road, Qingdao 266034, Shandong, China
| | - Hao Wan
- Open Mental Department of Qingdao Mental Health Center, Qingdao University, No. 299 Nanjing Road, Qingdao 266034, Shandong, China.
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Luan D, Zhao MG, Shi YC, Li L, Cao YJ, Feng HX, Zhang ZJ. Mechanisms of repetitive transcranial magnetic stimulation for anti-depression: Evidence from preclinical studies. World J Psychiatry 2020; 10:223-233. [PMID: 33134113 PMCID: PMC7582130 DOI: 10.5498/wjp.v10.i10.223] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 08/11/2020] [Accepted: 09/02/2020] [Indexed: 02/05/2023] Open
Abstract
This review summarizes the anti-depressant mechanisms of repetitive transcranial magnetic stimulation in preclinical studies, including anti-inflammatory effects mediated by activation of nuclear factor-E2-related factor 2 signaling pathway, anti-oxidative stress effects, enhancement of synaptic plasticity and neurogenesis via activation of the endocannabinoid system and brain derived neurotrophic factor signaling pathway, increasing the content of monoamine neurotransmitters via inhibition of Sirtuin 1/monoamine oxidase A signaling pathway, and reducing the activity of the hypothalamic-pituitary-adrenocortical axis. We also discuss the shortcomings of transcranial magnetic stimulation in preclinical studies such as inaccurate positioning, shallow depth of stimulation, and difficulty in elucidating the neural circuit mechanism up- and down-stream of the stimulation target brain region.
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Affiliation(s)
- Di Luan
- Department of Neurology, Affiliated Zhongda Hospital, Research Institution of Neuropsychiatry, School of Medicine, Southeast University, Nanjing 210009, Jiangsu Province, China
| | - Ming-Ge Zhao
- Department of Nursing, School of Medicine, Southeast University, Nanjing 210009, Jiangsu Province, China
| | - Ya-Chen Shi
- Department of Neurology, Affiliated Zhongda Hospital, Research Institution of Neuropsychiatry, School of Medicine, Southeast University, Nanjing 210009, Jiangsu Province, China
| | - Ling Li
- Department of Neurology, Affiliated Zhongda Hospital, Research Institution of Neuropsychiatry, School of Medicine, Southeast University, Nanjing 210009, Jiangsu Province, China
| | - Yu-Jia Cao
- Department of Neurology, Affiliated Zhongda Hospital, Research Institution of Neuropsychiatry, School of Medicine, Southeast University, Nanjing 210009, Jiangsu Province, China
| | - Hai-Xia Feng
- Department of Nursing, School of Medicine, Southeast University, Nanjing 210009, Jiangsu Province, China
| | - Zhi-Jun Zhang
- Department of Neurology, Affiliated Zhongda Hospital, Research Institution of Neuropsychiatry, School of Medicine, Southeast University, Nanjing 210009, Jiangsu Province, China
- Department of Psychology, Xinxiang Medical University, Xinxiang 453003, Henan Province, China
- Mental Health Center, Zhejiang University School of Medicine, Hangzhou 310013, Zhejiang province, China
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Rezaei S, Asgari Mobarake K, Saberi A. BDNF (rs6265) Val < Met polymorphism can buffer cognitive functions against post stroke CT/MRI pathological findings. Appl Neuropsychol Adult 2020; 29:971-982. [PMID: 33073590 DOI: 10.1080/23279095.2020.1830774] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Brain lesions following stroke have been shown prevalently in CT/MRI, and it was confirmed that lesions usually are accompanied by cognitive deficits. Although previous studies have emphasized that BDNF Val66Met polymorphism had a substantial role in neurogenesis and synaptic plasticity, it remains unclear to what extent an interaction may be appeared between neuroimaging findings and Val66Met variants on different cognitive functions following stroke. In a case-control study the carriers of at least one Val allele (n = 56), were compared with the carriers of Met/Met homozygotes (n = 156) in order to find possible neuroimaging factors in relation to cognitive functions in a sample from the north of Iran. The third edition of Addenbrooke's Cognitive Examination (ACE-III) was used to determine the cognitive functions. There were interactive effects among Val66Met genotypes with dominant hemisphere lesions [F = 6.97, ή2 = 0.03, p = 0.009], cerebral atrophy [F = 5.43, ή2 = 0.03, p = 0.011] and number of lesions [F = 4.32, ή2 = 0.04, p = 0.014], for visuospatial skills, memory, and attention functions respectively; implying that the effect of dominant hemisphere lesions, cerebral atrophy, and multiple lesions on cognitive functions have been modulated by Met/Met homozygosity. The destructive effect of Val/Met homozygosity on cognitive functions was shown to be exacerbated by dominant hemispheric lesions, cerebral atrophy, and multiple lesions following stroke. The findings of present research support our hypothesis that interaction of Val66Met variants with cerebral lesions is associated with cognitive dysfunctions in post stroke conditions; particularly through Met/Met homozygosity which act as a buffer mechanism against some CT/MRI pathological findings.
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Affiliation(s)
- Sajjad Rezaei
- Department of Psychology, University of Guilan, Rasht, Iran
| | | | - Alia Saberi
- Neuroscience Research Center, Department of Neurology, School of Medicine, PourSina Hospital, Guilan University of Medical Sciences, Rasht, Iran
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Bembenek JP, Kurczych K, Kłysz B, Cudna A, Antczak J, Członkowska A. Prediction of Recovery and Outcome Using Motor Evoked Potentials and Brain Derived Neurotrophic Factor in Subacute Stroke. J Stroke Cerebrovasc Dis 2020; 29:105202. [PMID: 33066924 DOI: 10.1016/j.jstrokecerebrovasdis.2020.105202] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 07/20/2020] [Accepted: 07/22/2020] [Indexed: 01/01/2023] Open
Abstract
INTRODUCTION AND OBJECTIVES Motor evoked potentials (MEPs) have been postulated to be useful in predicting recovery in patients with motor impairment. We aimed to investigate whether MEPs elicited by transcranial magnetic stimulation (TMS), serum brain derived neurotrophic factor (BDNF) and its genotype have prognostic value on stroke recovery in patients with hand paresis due to stroke. METHODS This was an observational cohort study. Patients underwent TMS with MEPs from abductor digiti minimi evaluation between 2-14 (D0) and 30 days (D30) after stroke and their impact on motor function of the upper limb and general outcome was assessed after 3 months (D90). The presence of a BDNF gene polymorphism was determined and serum BDNF concentrations were measured at D0, D30 and D90. RESULTS The presence of MEPs and their amplitude at rest and in effort significantly correlated with improvement of upper-limb paresis and general outcome after 3 months. Resting motor threshold did not have prognostic value. Central motor conduction time and MEP latency less consistently predicted stroke outcome or motor deficit improvement. Neither BDNF polymorphisms nor BDNF concentration at D0, D30 and D90 corresponded with the degree of paresis or the independence of patients 3 months after stroke. CONCLUSIONS The presence of MEPs and their amplitude are useful predictors of upper-limb motor function recovery and general outcome after stroke. BDNF concentration and its genotype had no prognostic value. Further studies conducted on large cohorts are necessary to determine the usefulness of these methods in motor recovery and stroke outcome prediction.
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Affiliation(s)
- Jan P Bembenek
- Department of Clinical Neurophysiology, Institute of Psychiatry and Neurology, Warsaw, Poland.
| | - Katarzyna Kurczych
- Department of Neurology, Institute of Psychiatry and Neurology, Warsaw, Poland.
| | - Bożena Kłysz
- Department of Neurology, Institute of Psychiatry and Neurology, Warsaw, Poland.
| | - Agnieszka Cudna
- Department of Neurology, Institute of Psychiatry and Neurology, Warsaw, Poland.
| | - Jakub Antczak
- Department of Clinical Neurophysiology, Institute of Psychiatry and Neurology, Warsaw, Poland.
| | - Anna Członkowska
- Department of Neurology, Institute of Psychiatry and Neurology, Warsaw, Poland.
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Cappoli N, Tabolacci E, Aceto P, Dello Russo C. The emerging role of the BDNF-TrkB signaling pathway in the modulation of pain perception. J Neuroimmunol 2020; 349:577406. [PMID: 33002723 DOI: 10.1016/j.jneuroim.2020.577406] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 09/15/2020] [Accepted: 09/22/2020] [Indexed: 02/07/2023]
Abstract
The brain derived neurotrophic factor (BDNF) is a crucial neuromodulator in pain transmission both in peripheral and central nervous system (CNS). Despite evidence of a pro-nociceptive role of BDNF, recent studies have reported contrasting results, including anti-nociceptive and anti-inflammatory activities. Moreover, BDNF polymorphisms can interfere with BDNF role in pain perception. In Val66Met carriers, the Met allele may have a dual role, with anti-nociceptive actions in normal condition and pro-nociceptive effects during chronic pain. In order to elucidate the main effects of BDNF in nociception, we reviewed the main characteristics of this neurotrophin, focusing on its involvement in pain.
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Affiliation(s)
- Natalia Cappoli
- Università Cattolica del Sacro Cuore, Dipartimento di Sicurezza e Bioetica, Sezione di Farmacologia, Rome, Italy
| | - Elisabetta Tabolacci
- Università Cattolica del Sacro Cuore, Dipartimento di Scienze della Vita e Sanità Pubblica, Sezione di Medicina Genomica, Rome, Italy; Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Paola Aceto
- Fondazione Policlinico Universitario A. Gemelli IRCCS, Dipartimento di Scienze dell'Emergenza, Anestesiologiche e della Rianimazione, Rome, Italy; Università Cattolica del Sacro Cuore, Dipartimento di Scienze biotecnologiche di base, cliniche intensivologiche e perioperatorie, Rome, Italy.
| | - Cinzia Dello Russo
- Università Cattolica del Sacro Cuore, Dipartimento di Sicurezza e Bioetica, Sezione di Farmacologia, Rome, Italy; Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
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He J, Huang Y, Liu H, Sun X, Wu J, Zhang Z, Liu L, Zhou C, Jiang S, Huang Z, Zhong J, Guo Z, Jiang L, Cheng C. Bexarotene promotes microglia/macrophages - Specific brain - Derived Neurotrophic factor expression and axon sprouting after traumatic brain injury. Exp Neurol 2020; 334:113462. [PMID: 32916173 DOI: 10.1016/j.expneurol.2020.113462] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 08/14/2020] [Accepted: 09/04/2020] [Indexed: 12/25/2022]
Abstract
Traumatic brain injury (TBI) has been regarded as one of the leading cause of injury-related death and disability. White matter injury after TBI is characterized by axon damage and demyelination, resulting in neural network impairment and neurological deficit. Brain-derived neurotrophic factor (BDNF) can promote white matter repair. The activation of peroxisome proliferator-activated receptor gamma (PPARγ) has been reported to promote microglia/macrophages towards anti-inflammatory state and therefore to promote axon regeneration. Bexarotene, an agonist of retinoid X receptor (RXR), can activate RXR/PPARγ heterodimers. The aim of the present study was to identify the effect of bexarotene on BDNF in microglia/macrophages and axon sprouting after TBI in mice. Bexarotene was administered intraperitoneally in C57BL/6 mice undergoing controlled cortical impact (CCI). PPARγ dependency was determined by intraperitoneal administration of a PPARγ antagonist T0070907. We found that bexarotene promoted axon regeneration indicated by increased growth associated protein 43 (GAP43) expression, myelin basic protein (MBP) expression, and biotinylated dextran amine (BDA)+ axon sprouting. Bexarotene also increased microglia/macrophages-specific brain derived neurotrophic factor (BDNF) expression after TBI. In addition, bexarotene reduced the number of pro-inflammatory microglia/macrophages while increased the number of anti-inflammatory microglia/macrophages after TBI. Moreover, bexaortene inhibited pro-inflammatory cytokine secretion. In addition, bexarotene treatment improved neurological scores and cognitive function of CCI-injured mice. These effects of bexarotene were partially abolished by T0070907. In conclusion, bexarotene promotes axon sprouting, increases microglia/macrophages-specific BDNF expression, and induces microglia/macrophages from a pro-inflammatory state towards an anti-inflammatory one after TBI at least partially in a PPARγ-dependent manner.
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Affiliation(s)
- Junchi He
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yike Huang
- Department of Ophthalmology, Army Medical Center (Daping Hospital), Army Medical University, Chongqing, China
| | - Han Liu
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xiaochuan Sun
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jingchuan Wu
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Zhaosi Zhang
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Liu Liu
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Chao Zhou
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Shaoqiu Jiang
- Department of Ophthalmology, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Zhijian Huang
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jianjun Zhong
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Zongduo Guo
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Li Jiang
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Chongjie Cheng
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
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Bird CW, Barber MJ, Martin J, Mayfield JJ, Valenzuela CF. The mouse-equivalent of the human BDNF VAL66MET polymorphism increases dorsal hippocampal volume and does not interact with developmental ethanol exposure. Alcohol 2020; 86:17-24. [PMID: 32224221 DOI: 10.1016/j.alcohol.2020.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 03/10/2020] [Accepted: 03/10/2020] [Indexed: 10/24/2022]
Abstract
A relatively common polymorphism in the human brain-derived neurotrophic factor (BDNF) gene (Val66Met, which corresponds to Val68Met in mice) has been shown to modulate cognitive function and vulnerability to mental health disorders. This substitution impairs trafficking and activity-dependent release of BDNF. A number of studies with both humans and transgenic mice suggest that carriers of the Met allele have deficits in the structure and/or function of the hippocampal formation. Using a relatively new transgenic mouse model of this polymorphism, we recently demonstrated that it modulates the effects of developmental ethanol exposure in the hippocampus. Here, we further characterized the effect of this polymorphism on hippocampal morphology and its interaction with ethanol vapor exposure during the 2nd and 3rd trimester equivalents of human pregnancy. We found that BDNFmet/met mice have slightly larger hippocampal volumes than BDNFval/val mice. Ethanol vapor exposure during the 2nd and 3rd trimester equivalents of human pregnancy increased hippocampal volume in a single hippocampal subregion, the CA1 stratum radiatum. Ethanol exposure did not interact with BDNF genotype to affect volume in any hippocampal subregion. These results suggest that the Val66Met polymorphism does not reduce hippocampal size (i.e., it rather increases it slightly) or increase susceptibility to prenatal ethanol exposure-induced structural hippocampal damage during adulthood.
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Ijiro T, Yaguchi A, Yokoyama A, Abe Y, Kiguchi S. Ameliorating effect of rovatirelin on the ataxia in rolling mouse Nagoya. Eur J Pharmacol 2020; 882:173271. [PMID: 32534077 DOI: 10.1016/j.ejphar.2020.173271] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 06/08/2020] [Accepted: 06/09/2020] [Indexed: 02/01/2023]
Abstract
Rovatirelin is a newly synthetized thyrotropin-releasing hormone (TRH) analog. This study aimed to investigate the effect of rovatirelin on motor function using rolling mouse Nagoya (RMN), a mouse model of hereditary ataxia, and compare it with that of taltirelin, which is clinically used to treat spinocerebellar degeneration in Japan. We also examined the effect of rovatirelin on glucose metabolism in various brain regions of RMN using autoradiography (ARG). Rovatirelin (1, 3, 10, and 30 mg/kg) dose-dependently reduced the fall index in RMN, and its effect was more potent than that of taltirelin (3, 10, 30, and 100 mg/kg). No attenuation of the effect was observed by repeated daily administration for 2 weeks. Furthermore, the reduction in the fall index by rovatirelin persisted for 2 weeks after completing treatment. In the ARG study, rovatirelin induced a significantly elevated uptake of glucose in the prefrontal cortex, nucleus accumbens shell, nucleus accumbens core, striatum, anterior cingulate cortex, secondary motor area, pretectal area, ventral tegmental area, black pars compacta, locus coeruleus, nucleus cerebellaris middle nucleus, medial nucleus of the vestibular nerve, fourth/fifth lobule, and third lobule. Furthermore, rovatirelin increased cerebellar mRNA level of brain derived neurotrophic factor. These results suggest that rovatirelin activates the cerebellum and other parts of the central nervous system to improve motor function in spinocerebellar ataxia (SCA) model animals, and its action is more potent than that of taltirelin. Therefore, rovatirelin can be a potential alternative to the traditionally used therapeutics for SCA.
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Affiliation(s)
- Tomoyuki Ijiro
- Central Research Laboratories, Kissei Pharmaceutical Co, Ltd., 4365-1, Hotaka Kashiwabara, Azumino Nagano, 399-8304, Japan
| | - Atsushi Yaguchi
- Central Research Laboratories, Kissei Pharmaceutical Co, Ltd., 4365-1, Hotaka Kashiwabara, Azumino Nagano, 399-8304, Japan
| | - Ayaka Yokoyama
- Central Research Laboratories, Kissei Pharmaceutical Co, Ltd., 4365-1, Hotaka Kashiwabara, Azumino Nagano, 399-8304, Japan
| | - Yoshikazu Abe
- Central Research Laboratories, Kissei Pharmaceutical Co, Ltd., 4365-1, Hotaka Kashiwabara, Azumino Nagano, 399-8304, Japan
| | - Sumiyoshi Kiguchi
- Central Research Laboratories, Kissei Pharmaceutical Co, Ltd., 4365-1, Hotaka Kashiwabara, Azumino Nagano, 399-8304, Japan.
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Kang SG, Lee JH, Lee K, Kim HC, Seo WS, Won S. The rs6265 Polymorphism of the BDNF Gene Is Related to Higher-Lethality Suicide Attempts in the Korean Population. Psychiatry Investig 2020; 17:417-423. [PMID: 32295326 PMCID: PMC7265018 DOI: 10.30773/pi.2020.0012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Accepted: 02/24/2020] [Indexed: 12/23/2022] Open
Abstract
OBJECTIVE Since the risk of suicide cannot be predicted by clinical symptoms alone, and suicide is known to have a genetic component, the discovery of genetic markers that can predict the lethality of suicide attempts is a clinically important topic. There have been many studies aiming to determine whether the rs6265 polymorphism of the BDNF gene is associated with suicidality; however, the results have been mixed, and there have been few studies investigating the relationship between this polymorphism and suicide attempt lethality. METHODS We assessed suicide lethality in 258 individuals who had attempted suicide using the relative risk ratio (RRR) scale and by genotyping the rs6265 polymorphism of the BDNF gene. RESULTS The RRR score for suicide attempts was higher in subjects with Met/Val and Val/Val genotypes than in that with a Met/Met genotype (p=0.015). The RRR score for suicide attempts was also higher in Val allele carriers (Met/Val+Val/Val) than in Met/Met homozygotes (p=0.006). CONCLUSION This study demonstrates the possibility that the rs6265 polymorphism of the BDNF gene could be used as a genetic marker to predict the lethality of suicide attempts, but more replication studies are needed for the application of this result in clinical practice.
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Affiliation(s)
- Seung-Gul Kang
- Department of Psychiatry, Gil Medical Center, Gachon University College of Medicine, Incheon, Republic of Korea
| | - Jong Hun Lee
- Department of Psychiatry, College of Medicine, Daegu Catholic University, Daegu, Republic of Korea
| | - Kwanghun Lee
- Department of Psychiatry, College of Medicine, Dongguk University, Gyeongju, Republic of Korea
| | - Hee-Cheol Kim
- Department of Psychiatry, Keimyung University School of Medicine, Daegu, Republic of Korea
| | - Wan Seok Seo
- Department of Psychiatry, College of Medicine, Yeungnam University, Daegu, Republic of Korea
| | - Seunghee Won
- Department of Psychiatry, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
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Tekgul H, Serin HM, Simsek E, Kanmaz S, Gazeteci H, Azarsiz E, Ozgur S, Yilmaz S, Aktan G, Gokben S. CSF levels of a set of neurotrophic factors (brain-derived neurotrophic factor, nerve growth factor) and neuropeptides (neuropeptide Y, galanin) in epileptic children. J Clin Neurosci 2020; 76:41-5. [PMID: 32327377 DOI: 10.1016/j.jocn.2020.04.064] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 04/12/2020] [Indexed: 01/03/2023]
Abstract
This paper aims to investigate the possible roles of a set of neurotrophic factors (brain-derived neurotrophic factor-BDNF, nerve growth factor-NGF) and neuropeptides (neuropeptide Y-NPY, and galanin) in children with active epileptogenesis. The cerebrospinal fluid (CSF) levels of BDNF, NPY, NGF and galanin were measured with enzyme-linked immunosorbent assays in epileptic children (n = 73) and controls (n = 64). There were no significant alterations in the CSF levels of BDNF, NPY and NGF in epileptic children with active clinical seizures compared with the levels of controls. However profoundly depressed galanin levels were found in infants with epileptic encephalopathy (mean ± SD:0.63 ± 0.19 pg/ml) and significantly increased galanin levels were measured in children with drug resistant epilepsy during the period of status epilepticus (mean ± SD: 6.92 ± 1.19, pg/ml pg/ml) compared with the levels of controls. Depressed levels of galanin might reflect a defective anti-epileptogenic effect of galanin in infants with epileptic encephalopathy. On the contrary, increased CSF levels of galanin might be a result of anti-epileptogenic effects of this peptide in epileptic children with status epilepticus.
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Al-Sawalha N, Alzoubi K, Khabour O, Karaoghlanian N, Ismail Z, Shihadeh A, Eissenberg T. Effect of electronic cigarette aerosol exposure during gestation and lactation on learning and memory of adult male offspring rats. Physiol Behav 2020; 221:112911. [PMID: 32289318 DOI: 10.1016/j.physbeh.2020.112911] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 03/14/2020] [Accepted: 04/03/2020] [Indexed: 12/31/2022]
Abstract
INTRODUCTION Electronic cigarette (ECIG) use has increased worldwide, including among pregnant and breastfeeding women. In this study, we examined the effect of ECIG aerosol exposure during gestation and lactation on learning and memory of adult male offspring rats. METHODS Rats were exposed to either fresh air or ECIG aerosol for one hour daily during gestational period as well as days 4-21 of lactation. Male offspring were followed through 19 weeks and then spatial learning and memory were tested by radial arm water maze (RAWM). The hippocampus was examined for biomarkers of harm, including oxidative stress, superoxide dismutase, catalase, glutathione peroxidase and thiobarbituric acid reactive substances and brain derived neurotrophic factor (BDNF). RESULTS Relative to exposure to fresh air, exposure to ECIG aerosol during gestation/lactation impaired long-term memory in adult offspring (P < 0.05). This impairment was associated with increased activity of superoxide dismutase in the hippocampus (P < 0.05). BDNF and the other tested oxidative stress biomarkers were not affected by ECIG aerosol exposure (p > 0.05). CONCLUSIONS In conclusion, ECIG aerosol exposure during gestation and lactation impaired long-term memory and increased the activity of superoxide dismutase in the hippocampus of offspring adult rats. These results support the development of strategies to enhance ECIG cessation during pregnancy and breastfeeding.
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Allimuthu P, Nandeesha H, Chinniyappan R, Bhardwaz B, Blessed Raj J. Relationship of Brain-Derived Neurotrophic Factor with Interleukin-23, Testosterone and Disease Severity in Schizophrenia. Indian J Clin Biochem 2020; 36:365-369. [PMID: 34220013 DOI: 10.1007/s12291-020-00880-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 03/05/2020] [Indexed: 11/24/2022]
Abstract
Hormonal imbalance, inflammation and alteration in synaptic plasticity are reported to play a crucial role in the pathogenesis of schizophrenia. The objective of the study was to assess the serum levels of brain derived neurotrophic factor (BDNF) and its association with interleukin-23 (IL-23), testosterone and disease severity in schizophrenia. 40 cases and 40 controls were included in the study. Serum levels of BDNF, IL-23 and testosterone were estimated in all the subjects. Disease severity was assessed using Positive and Negative Syndrome Scale (PANSS). The study was designed in Tertiary care hospital, South India. The results were compared between two groups using Mann-Whitney U test. Spearman Correlation analysis was used to assess the association between biochemical parameters and PANSS. Interleukin-23 and testosterone were significantly increased and BDNF was significantly reduced in schizophrenia cases when compared with controls. BDNF was negatively correlated with IL-23 (r = - 400, p = 0.011), positive symptom subscale (r = - 0.393, p = 0.012), general psychopathology score subscale (r = - 407, p = 0.009) and total symptom subscale (r = - 404, p = 0.010). There was no significant association of IL-23 and testosterone with disease severity in schizophrenia cases. BDNF was reduced in schizophrenia cases and negatively associated with interleukin-23 and disease severity scores.
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Affiliation(s)
- Priya Allimuthu
- Department of Biochemistry and Psychiatry, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | - Hanumanthappa Nandeesha
- Department of Biochemistry and Psychiatry, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | - Raghavi Chinniyappan
- Department of Biochemistry and Psychiatry, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | - Balaji Bhardwaz
- Department of Biochemistry and Psychiatry, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India.,Department of Psychiatry, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | - Jesudas Blessed Raj
- Department of Biochemistry and Psychiatry, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
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Wu QL, Cheng YQ, Liu AJ, Zhang WD. Formononetin recovered injured nerve functions by enhancing synaptic plasticity in ischemic stroke rats. Biochem Biophys Res Commun 2020; 525:S0006-291X(20)30281-3. [PMID: 32081422 DOI: 10.1016/j.bbrc.2020.02.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Accepted: 02/05/2020] [Indexed: 11/16/2022]
Abstract
BACKGROUND AND OBJECTIVES Formononetin has protective effect against ischemic stroke. It's unclear whether it can restore the nerve functions after stroke. METHODS SD rats were subjected with middle cerebral artery occlusion (MCAO), and divided into sham, model and formononetin (30 mg/kg) groups. Neurobehavioral tests (modified Neurological Severity Score [mNSS] and rotarod) were performed before and at 1, 3, 7 and 14 days after MCAO. Then, the rats were sacrificed and the brain sections were processed for neuronal differentiation and synaptic plasticity. RESULTS Compared with the sham group, the scores of mNSS were significantly increased, and the residence time on the rotating drum was significantly decreased in the MCAO rats. Compared with the model group, the scores of mNSS were significantly decreased, and the residence time on the rotating drum was increased in the formononetin (30 mg/kg) group. Formononetin significantly increased the number of neuronal dendritic spines and the expression of β III-tubulin, GAP-43, NGF, BDNF, p-Trk A, p-Trk B, p-AKT and p-ERK 1/2. CONCLUSIONS Formononetin recovered injured nerve functions after ischemic stroke. PI3K/AKT/ERK pathway might involve in the beneficial effect of formononetin on the neuronal differentiation and synaptic plasticity.
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Affiliation(s)
- Qiu-Ling Wu
- School of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, China; Department of Pharmacology, School of Pharmacy, Second Military Medical University, Shanghai, 200433, China
| | - Yan-Qiong Cheng
- Department of Pharmacology, School of Pharmacy, Second Military Medical University, Shanghai, 200433, China; Department of Pharmacy Research, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200437, China
| | - Ai-Jun Liu
- Department of Pharmacology, School of Pharmacy, Second Military Medical University, Shanghai, 200433, China; Department of Pharmacy Research, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200437, China.
| | - Wei-Dong Zhang
- School of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, China; Department of Phytochemistry, School of Pharmacy, Second Military Medical University, Shanghai, 200433, China.
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Xu Z, Qian B. Sevoflurane anesthesia-mediated oxidative stress and cognitive impairment in hippocampal neurons of old rats can be ameliorated by expression of brain derived neurotrophic factor. Neurosci Lett 2020; 721:134785. [PMID: 32027953 DOI: 10.1016/j.neulet.2020.134785] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 01/23/2020] [Indexed: 01/19/2023]
Abstract
Postoperative cognitive dysfunction in elderly patients has been related to neurodegenerative disorders and mortality. Sevoflurane anesthesia has been implicated in both postoperative cognitive dysfunction and neurotoxicity. Given the advantages of using inhaled anesthetics like sevoflurane, it is important to understand how their usage results in neurotoxicity and subsequently devise ways to circumvent or attenuate the anesthetic-mediated induction in neurotoxicity. We have used an aged rat model to investigate the molecular mechanisms by which sevoflurane inhalation results in neurotoxicity and whether modulation of these molecular mechanisms can inhibit or attenuate neurotoxicity and cognitive learning and memory impairment in these animals. Low- or high-dose of sevoflurane resulted in reactive oxygen species generation, increased NADPH oxidase protein expression, apoptosis and autophagy. Sevoflurane inhalation resulted in significant inhibition of brain derived neurotrophic factor (BDNF) and cognitive impairment. And the activation of PI3K/Akt/mTOR signaling pathways are attenuated in sevoflurane-mediated anesthesia. Adeno-associated virus (AAV)-mediated expression of Bdnf, but not controls EGFP, attenuated sevoflurane-induced oxidative stress and cognitive impairment in the rats. Our results highlight that AAV-mediated gene therapy might offer a potential therapeutic opportunity to treat post-operative cognitive impairment resulting from inhaled anesthetics.
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Moreira da Silva Santos A, Gorman AM, Kelly JP, Doyle KM. Time and region-dependent manner of increased brain derived neurotrophic factor and TrkB in rat brain after binge-like methamphetamine exposure. Neurosci Lett 2020; 715:134606. [PMID: 31693929 DOI: 10.1016/j.neulet.2019.134606] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 10/06/2019] [Accepted: 10/29/2019] [Indexed: 12/27/2022]
Abstract
Methamphetamine (MA), a synthetic derivate of amphetamine, has become a major drug of abuse worldwide. This study investigated the effect of binge-like MA dosing (4 x 4 mg/kg, s.c., 2 h (h) apart) at a range of different time points (from 2 h to 7 days after treatment) on brain-derived neurotrophic factor (BDNF) levels and its receptors, TrkB and p75NTR. BDNF levels were significantly increased in the frontal cortex from 2 to 36 h after treatment, returning to normal within 48 h after treatment. In the striatum, BDNF expression was increased at 12 and 24 h after binge-like MA treatment and had returned to normal at 36 h. Increased expression of the TrkB receptor was observed in the frontal cortex at 2, 24 and 48 h after MA treatment and in the striatum at 24 and 48 h after the MA regimen. A significant increase in the p75NTR receptor was also noted in the striatum but not the frontal cortex, and it was less pronounced than the effect on TrkB receptor expression. These findings show that the binge-like regimen of MA affects expression of BDNF and its receptors, particularly the TrkB receptor, in a time and region dependent manner, and highlights the importance of the frontal cortex and the striatum in the response following MA binge-like dosing.
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Affiliation(s)
- Andreia Moreira da Silva Santos
- School of Medicine and Galway Neuroscience Centre, National University of Ireland, Galway, Ireland; Centro Universitário Unievangélica, Anápolis - GO CEP: 75083-515, Brazil
| | - Adrienne M Gorman
- School of Natural Sciences and Apoptosis Research Centre, National University of Ireland, Galway, Ireland
| | - John P Kelly
- School of Medicine and Galway Neuroscience Centre, National University of Ireland, Galway, Ireland
| | - Karen M Doyle
- School of Medicine and Galway Neuroscience Centre, National University of Ireland, Galway, Ireland.
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Chiha W, Bartlett CA, Petratos S, Fitzgerald M, Harvey AR. Intravitreal application of AAV-BDNF or mutant AAV-CRMP2 protects retinal ganglion cells and stabilizes axons and myelin after partial optic nerve injury. Exp Neurol 2020; 326:113167. [PMID: 31904385 DOI: 10.1016/j.expneurol.2019.113167] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 12/20/2019] [Accepted: 12/31/2019] [Indexed: 12/29/2022]
Abstract
Secondary degeneration following an initial injury to the central nervous system (CNS) results in increased tissue loss and is associated with increasing functional impairment. Unilateral partial dorsal transection of the adult rat optic nerve (ON) has proved to be a useful experimental model in which to study factors that contribute to secondary degenerative events. Using this injury model, we here quantified the protective effects of intravitreally administered bi-cistronic adeno-associated viral (AAV2) vectors encoding either brain derived neurotrophic factor (BDNF) or a mutant, phospho-resistant, version of collapsin response mediator protein 2 (CRMP2T555A) on retinal ganglion cells (RGCs), their axons, and associated myelin. To test for potential synergistic interactions, some animals received combined injections of both vectors. Three months post-injury, all treatments maintained RGC numbers in central retina, but only AAV2-BDNF significantly protected ventrally located RGCs exclusively vulnerable to secondary degeneration. Behaviourally, treatments that involved AAV2-BDNF significantly restored the number of smooth-pursuit phases of optokinetic nystagmus. While all therapeutic regimens preserved axonal density and proportions of typical complexes, including heminodes and single nodes, BDNF treatments were generally more effective in maintaining the length of the node of Ranvier in myelin surrounding ventral ON axons after injury. Both AAV2-BDNF and AAV2-CRMP2T555A prevented injury-induced changes in G-ratio and overall myelin thickness, but only AAV2-BDNF administration protected against large-scale myelin decompaction in ventral ON. In summary, in a model of secondary CNS degeneration, both BDNF and CRMP2T555A vectors were neuroprotective, however different efficacies were observed for these overexpressed proteins in the retina and ON, suggesting disparate cellular and molecular targets driving responses for neural repair. The potential use of these vectors to treat other CNS injuries and pathologies is discussed.
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Affiliation(s)
- Wissam Chiha
- School of Biological Sciences, The University of Western Australia, WA 6009, Australia; Curtin Health Innovation Research Institute, Curtin University, Belmont, WA 6102, Australia
| | - Carole A Bartlett
- School of Biological Sciences, The University of Western Australia, WA 6009, Australia
| | - Steven Petratos
- Department of Neuroscience, Monash University, VIC 3004, Australia
| | - Melinda Fitzgerald
- Perron Institute for Neurological and Translational Science, Nedlands, WA 6009, Australia; Curtin Health Innovation Research Institute, Curtin University, Belmont, WA 6102, Australia
| | - Alan R Harvey
- School of Human Sciences, The University of Western Australia, WA 6009, Australia; Perron Institute for Neurological and Translational Science, Nedlands, WA 6009, Australia.
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Badihian N, Daniali SS, Kelishadi R. Transcriptional and epigenetic changes of brain derived neurotrophic factor following prenatal stress: A systematic review of animal studies. Neurosci Biobehav Rev 2019; 117:211-231. [PMID: 31838194 DOI: 10.1016/j.neubiorev.2019.12.018] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 12/07/2019] [Accepted: 12/11/2019] [Indexed: 12/18/2022]
Abstract
Gestational period plays critical role in neuropsychological development. One of the genes that undergoes changes by prenatal stress (PNS) exposure, is the gene coding brain derived neurotrophic factor (BDNF). Studies have reported different patterns of change following PNS in BDNF, which emphasizes the complexity of the issue. In this review, systematic search of PubMed, Scopus, Web of Science and Cochrane CENTRAL databases was performed. Primary searches resulted in 2132 studies and finally 43 studies were found to meet the inclusion criteria. Transcriptional and epigenetic changes of BDNF gene in the brain were recorded. Decreased or unchanged BDNF total mRNA and BDNF mature protein, with hypermethylation of the coding exons were the most reported changes. However, stress paradigm, gender of the fetus and the day of sacrifice were found to significantly affect the results. Hippocampus and prefrontal cortex are the most vulnerable regions. They can show long lasting and persistent transcriptional and epigenetics changes of BDNF gene following PNS. Further studies evaluating the importance of these findings in humans are essential.
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Affiliation(s)
- Negin Badihian
- Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, 81746-73461, Iran.
| | - Seyede Shahrbanoo Daniali
- Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, 81746-73461, Iran.
| | - Roya Kelishadi
- Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, 81746-73461, Iran.
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Bathina S, Das UN. PUFAs, BDNF and lipoxin A4 inhibit chemical-induced cytotoxicity of RIN5F cells in vitro and streptozotocin-induced type 2 diabetes mellitus in vivo. Lipids Health Dis 2019; 18:214. [PMID: 31823816 PMCID: PMC7159172 DOI: 10.1186/s12944-019-1164-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 12/03/2019] [Indexed: 12/23/2022] Open
Abstract
Objective To study whether minimal doses of arachidonic acid (AA), eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) and lipoxin A4 (LXA4) and brain-derived neurotrophic factor (BDNF), when used in combination can protect RIN5F cells from chemical-induced cytotoxicity. As a corollary, to know whether plasma BDNF and LXA4 are altered in STZ-induced type 2 DM animals. Materials and methods RIN5F cells, alloxan (AL), streptozotocin (STZ), doxorubicin (DB), and benzo(a)pyrene (BP) were used in this study. Chemical-induced apoptosis and changes in antioxidants, lipid peroxides and nitric oxide (NO) and LXA4 and BDNF levels in RIN5F cells were studied. Alterations in plasma concentrations of BDNF and LXA4 in STZ-induced type 2 diabetes animals was estimated. Results BDNF, LXA4 and AA, EPA and DHA protected (P < 0.001 and P < 0.01 respectively) against AL/STZ/DB/BP-induced toxicity to RIN5F cells in vitro. AL/ STZ/DB/BP inhibited BDNF and LXA4 production by RIN5F cells and were restored to normal by AA, EPA and DHA. Sub-optimal doses of BDNF, LXA4, AA and EPA when used in combination protected against cytotoxic action of AL/STZ/DB/BP on RIN5F cells in vitro by restoring LXA4/BDNF levels and altered antioxidant/lipid peroxides/NO levels (P < 0.01) to normal. STZ (65 mg/kg)-induced type 2 diabetes mellitus animals showed reduced plasma BDNF and LXA4 levels (P < 0.001). Discussion AL/STZ/DB/BP-induced cytotoxicity to RIN5F cells in vitro can be prevented by BDNF, LXA4 and AA. AL/STZ/DB/BP are cytotoxic, possibly, by suppressing the production of LXA4 and BDNF in RIN5F cells. STZ-induced type 2 DM animals have decreased plasma levels of LXA4 and BDNF. Conclusion The results of the present study suggest that BDNF, LXA4, EPA, DHA, AA, GLA and BDNF protect pancreatic β cells from the cytotoxic action of various chemicals and prevent development of diabetes mellitus. LXA4 seems to be the mediator of these cytoprotective actions of BDNF and PUFAs suggesting a close interaction exists among these molecules (BDNF, PUFAs and LXA4). Hence, methods developed to deliver a combination of PUFAs (especially AA), LXA4 and BDNF may prevent development of diabetes mellitus (both type 1 and type 2).
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Affiliation(s)
- Siresha Bathina
- BioScience Research Centre and Department of Medicine, Gayatri Vidya Parishad Hospital, GVP College of Engineering Campus, Visakhapatnam, 530048, India.,Present Address: Department of Biotechnology, Gandhi Institute of Technology and Management (GITAM) Institute of Science, GITAM University, Visakhapatnam, Andhra Pradesh, India
| | - Undurti N Das
- BioScience Research Centre and Department of Medicine, Gayatri Vidya Parishad Hospital, GVP College of Engineering Campus, Visakhapatnam, 530048, India. .,UND Life Sciences, 2221, NW 5th St, Battle Ground, WA, 98604, USA.
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Ochi T, Vyalova NM, Losenkov IS, Levchuk LA, Osmanova DZ, Mikhalitskaya EV, Loonen AJM, Bosker FJ, Simutkin GG, Bokhan NA, Wilffert B, Ivanova SA. Investigating the potential role of BDNF and PRL genotypes on antidepressant response in depression patients: A prospective inception cohort study in treatment-free patients. J Affect Disord 2019; 259:432-439. [PMID: 31611000 DOI: 10.1016/j.jad.2019.08.058] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 07/13/2019] [Accepted: 08/18/2019] [Indexed: 10/26/2022]
Abstract
BACKGROUND Brain-derived neurotrophic factor (BDNF) is associated with response to antidepressant drugs in mood and anxiety disorders. Prolactin (PRL) is a pituitary hormone with behavioural effects, acting as a neurotrophic factor within the brain and may be involved in antidepressant response. OBJECTIVES To investigate the relationship between BDNF and PRL genotypes with antidepressant drug response. METHODS Prospective inception cohort of 186 Russian treatment-free participants (28 men and 158 women) between 18 and 70 years clinically diagnosed with depressive disorder who initiated antidepressant medication. DNA polymorphisms were genotyped for PRL rs1341239, BDNF rs6265 and rs7124442. Primary outcome was measured by differences in Hamilton Depression Rating Scale (∆HAM-D) scores between baseline/week two, week two/week four, and baseline/week four. Linear regression and independent t-test determined the significance between polymorphisms and ∆HAM-D. RESULTS Comparisons between genotypes did not reveal any significant differences in scores during the first two weeks of treatment. In the latter two weeks, BDNF rs7124442 homozygous C patients responded significantly worse in comparison to homozygous T patients during this period. Further analysis within women and in post-menopausal women found a similar comparison between alleles. LIMITATIONS Study lasted four weeks, which may be considered short to associate genuine antidepressant effects. CONCLUSIONS Patients taking tricylic antidepressants were noted to have a significant improvement in ∆HAM-D compared to patients taking SSRIs. Homozygous C BDNF rs712442 patients were found to respond significantly worse in the last two weeks of treatment.
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Affiliation(s)
- Taichi Ochi
- University of Groningen, Groningen Research Institute of Pharmacy, Unit of PharmacoTherapy, Epidemiology & Economics, Antonius Deusinglaan 1, 9713AV Groningen, the Netherlands.
| | - Natalya M Vyalova
- Mental Health Research Institute, Tomsk National Research Medical Center of the Russian Academy of Sciences, Aleutskaya street, 4, 634014 Tomsk, Russian Federation
| | - Innokentiy S Losenkov
- Mental Health Research Institute, Tomsk National Research Medical Center of the Russian Academy of Sciences, Aleutskaya street, 4, 634014 Tomsk, Russian Federation
| | - Lyudmila A Levchuk
- Mental Health Research Institute, Tomsk National Research Medical Center of the Russian Academy of Sciences, Aleutskaya street, 4, 634014 Tomsk, Russian Federation
| | - Diana Z Osmanova
- Mental Health Research Institute, Tomsk National Research Medical Center of the Russian Academy of Sciences, Aleutskaya street, 4, 634014 Tomsk, Russian Federation
| | - Ekaterina V Mikhalitskaya
- Mental Health Research Institute, Tomsk National Research Medical Center of the Russian Academy of Sciences, Aleutskaya street, 4, 634014 Tomsk, Russian Federation
| | - Anton J M Loonen
- University of Groningen, Groningen Research Institute of Pharmacy, Unit of PharmacoTherapy, Epidemiology & Economics, Antonius Deusinglaan 1, 9713AV Groningen, the Netherlands; GGZ Westelijk Noord-Brabant, Hoofdlaan 8, 4661AA Halsteren, the Netherlands.
| | - Fokko J Bosker
- University of Groningen, University Medical Centre Groningen, University Centre for Psychiatry, Hanzeplein 1, 9713 GZ Groningen, PO Box 30.001, 9700 RB Groningen, the Netherlands
| | - German G Simutkin
- Mental Health Research Institute, Tomsk National Research Medical Center of the Russian Academy of Sciences, Aleutskaya street, 4, 634014 Tomsk, Russian Federation
| | - Nikolay A Bokhan
- Mental Health Research Institute, Tomsk National Research Medical Center of the Russian Academy of Sciences, Aleutskaya street, 4, 634014 Tomsk, Russian Federation; National Research Tomsk State University, Department of Psychotherapy and Psychological Counseling, Lenin Avenue, 36, 634050 Tomsk, Russian Federation; Siberian State Medical University, Moscowski Trakt, 2, 634050, Tomsk, Russian Federation
| | - Bob Wilffert
- University of Groningen, Groningen Research Institute of Pharmacy, Unit of PharmacoTherapy, Epidemiology & Economics, Antonius Deusinglaan 1, 9713AV Groningen, the Netherlands; University of Groningen, University Medical Center Groningen, Department of Clinical Pharmacy and Pharmacology, Hanzeplein 1, 9713 GZ Groningen, PO Box 30.001, 9700 RB Groningen, the Netherlands
| | - Svetlana A Ivanova
- Mental Health Research Institute, Tomsk National Research Medical Center of the Russian Academy of Sciences, Aleutskaya street, 4, 634014 Tomsk, Russian Federation; Siberian State Medical University, Moscowski Trakt, 2, 634050, Tomsk, Russian Federation; National Research Tomsk Polytechnic University, School of Non-Destructive Testing & Security, Division for Control and Diagnostics, Lenin Avenue, 30, 634050 Tomsk, Russian Federation
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Garabadu D, Srivastava N, Murti Y. Calotropis procera attenuates chronic unpredictable mild stress-induced depression in experimental animals. Metab Brain Dis 2019; 34:1635-1647. [PMID: 31346860 DOI: 10.1007/s11011-019-00471-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Accepted: 07/14/2019] [Indexed: 02/05/2023]
Abstract
Calotropis procera (CP; Apocynaceae) is reported to have several neuroprotective activities however it's anti-depressant activity yet to be established. Therefore, the present study was proposed to evaluate the anti-depressant activity of the standardized ethanolic extract of CP (ECP) in chronic unpredictable mild stress (CUMS) paradigm exposed male rats. Animals were exposed to CUMS from day-1 (D-1) to D-28 except control group animals of the experimental schedule. ECP (50, 100 and 200 mg/kg, p.o.) and Imipramin (15.0 mg/kg, p.o.) were administered for seven consecutive days after CUMS paradigm. On D-35, ECP (200 mg/kg) significantly attenuated immobility period of the animals in both forced-swim and tail suspension and improved behavioural parameters in open-field and anhedonia in sucrose feeding tests. ECP (200 mg/kg) attenuated CUMS-induced hyperactivity of HPA-axis function. Further, ECP (200 mg/kg) mitigated CUMS-induced decrease in serotonin (5-HT), increase in 5-hydroxy indole acetic acid (5-HIAA) and increase in the ratio of 5-HIAA/5-HT in hippocampus and pre-frontal cortex. The CUMS-induced decrease in the level of expression of BDNF was significantly reversed with ECP (200 mg/kg) treatment. Moreover, ECP (200 mg/kg) significantly reduced the CUMS-induced decrease in the mitochondrial function and integrity in terms of level of formazan formed and intensity of tetramethyl rhodamine methylester dye in both the brain regions respectively. Therefore, ECP (200 mg/kg) mitigates CUMS-induced alterations in the behaviours, HPA-axis function, serotonergic activity, neurogenesis and mitochondrial function in the rodents. Thus, it can be assumed that ECP could be a potential alternative candidate in the management of depression.
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Affiliation(s)
- Debapriya Garabadu
- Division of Pharmacology, Institute of Pharmaceutical Research, GLA University, Mathura, 281406, India.
| | - Neha Srivastava
- Division of Pharmacology, Institute of Pharmaceutical Research, GLA University, Mathura, 281406, India
| | - Yogesh Murti
- Division of Pharmacology, Institute of Pharmaceutical Research, GLA University, Mathura, 281406, India
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Gökçe E, Güneş E, Nalçaci E. Effect of Exercise on Major Depressive Disorder and Schizophrenia: A BDNF Focused Approach. ACTA ACUST UNITED AC 2019; 56:302-310. [PMID: 31903041 DOI: 10.29399/npa.23369] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Accepted: 03/27/2019] [Indexed: 12/22/2022]
Abstract
Psychiatric disorders are remarkable health problems that cause a massive social and economic burden, and the issue of their long-term and effective treatment is subjected to discussion. The effect of physical activity and exercise is under investigation in the treatment of the major depressive disorder (MDD) and schizophrenia which are accompanied by cognitive dysfunctions. Scientists focus on the positive effects of exercise on learning, memory and attention parameters while investigating the regulatory role of brain-derived neurotrophic factor (BDNF). In this review, the effect of aerobic exercise on peripheral BDNF levels in MDD and schizophrenia is examined by including human studies in which acute and chronic aerobic exercise are applied. The results showed that aerobic exercise caused different responses on BDNF levels, and some of the studies were accompanied by the improvement in cognitive functions in BDNF changes. In order to comprehend the effect of aerobic exercise in MDD and schizophrenia, it is understood that applying studies on larger and paired participant groups with different exercise frequencies and tensions in necessary.
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Affiliation(s)
- Evrim Gökçe
- Department of Physiology, Ankara University, Faculty of Medicine, Ankara, Turkey
| | - Emel Güneş
- Department of Physiology, Ankara University, Faculty of Medicine, Ankara, Turkey
| | - Erhan Nalçaci
- Department of Physiology, Ankara University, Faculty of Medicine, Ankara, Turkey
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Mostafa Tork O, Ahmed Rashed L, Bakr Sadek N, Abdel-Tawab MS. Targeting Altered Mitochondrial Biogenesis in the Brain of Diabetic Rats: Potential Effect of Pioglitazone and Exendin-4. Rep Biochem Mol Biol 2019; 8:287-300. [PMID: 32274400 PMCID: PMC7103073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 07/13/2019] [Indexed: 06/11/2023]
Abstract
BACKGROUND Neuroprotective mechanisms triggered by peroxisome proliferator-activated receptor-gamma agonist: pioglitazone (PIO) and glucagon-like peptide 1 analog: exendin-4 (Ex-4) in neurological diseases were reported, but whether mitochondrial biogenesis is involved or not in their neuro-protective mechanisms in type 1 Diabetes Mellitus (T1DM); has not been studied before. To bridge this gap, we investigated the effect of PIO and Ex-4 on brain mitochondrial biogenesis in streptozotocin- induced diabetes in rats. METHODS Seven weeks after induction of diabetes in rats, serum fasting glucose and insulin were measured in studied groups. The brain was removed for histological analysis and assessment of: mitochondrial complexes I and II, ATP, H2O2, brain derived neurotrophic factor (BDNF), cytochrome c and hemeoxygenase (HO)-1 activity, and relative gene expression of the nuclear factor; Nrf2 and the apoptotic markers: bax & bcl2 and mitochondrial biogenesis markers; peroxisome proliferator-activated receptor γ coactivator (PGC) 1-α and sirtuin 1 (SIRT-1) and AMP-activated protein kinase (AMPK) and c-Jun-N-terminal kinase (JNK) proteins. RESULTS Brain in untreated rats showed neurodegeneration area and significantly rising H2O2 and JNK, up-regulation of bax, down-regulation of bcl2. These changes were paralleled with significant reduction in Nrf2, HO-1, BDNF, complex I, II and ATP and SIRT-1/ PGC1-α expression. PIO and Ex-4 significantly improved the reported changes. Combined modality showed better improvement relative to each drug alone. CONCLUSION PIO and Ex-4 may have neuroprotective effects in T1DM, via targeting altered mitochondrial biogenesis probably due to modulation of brain SIRT-1 signaling, improvement of oxidative stress and equilibrating the balance between pro-apoptotic and anti-apoptotic mediators.
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Affiliation(s)
- Ola Mostafa Tork
- Basic Medical Science Department, College of Medicine, Princess Nourah Bint Abdulrahman University.
- Medical Physiology department, Faculty of Medicine, Cairo University.
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