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Barlas T, Aksu MH, Cerit ET, Yalcin MM, Akturk M, Balos Toruner F, Karakoc MA, Eroglu Altinova A. Cognitive functions and the brain-derived neurotrophic factor in patients with mild autonomous cortisol secretion. Eur J Endocrinol 2024; 191:31-37. [PMID: 38917234 DOI: 10.1093/ejendo/lvae070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 04/29/2024] [Accepted: 06/19/2024] [Indexed: 06/27/2024]
Abstract
CONTEXT The impact of abnormal cortisol secretion on cognitive functions in patients with mild autonomous cortisol secretion (MACS) remains uncertain. OBJECTIVE To assess cognitive functions, determine serum brain-derived neurotrophic factor (BDNF) concentration in patients with MACS, and investigate the association between cognitive subdomains and BDNF. METHODS We prospectively recruited 84 participants-28 patients with MACS, 28 patients with nonfunctional adrenal adenoma (NFAA), and 28 control subjects matched for age, gender, body mass index (BMI), visceral adiposity, and educational level. The serum BDNF concentration of participants was measured. The Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition-focused interviews and Montreal Cognitive Assessments (MoCA) were carried out by an experienced psychiatrist. RESULTS Patients with MACS had a higher serum BDNF concentration than the NFAA (P = .001), while that of patients with NFAA was lower than the controls (P = .044). Linear regression analysis revealed BMI and morning cortisol after overnight 1 mg dexamethasone (DST) were mostly associated with BDNF (P < .05). No significant difference was found in MoCA scores between MACS and NFAA groups (P = .967), whereas those were lower than the control group (P = .004). When the cognitive subdomains were examined separately, MACS group performed higher memory score than NFAA (P = .045), but lower language scores than both the NFAA (P = .024) and control groups (P < .001). In the whole group, BDNF concentration was positively correlated with memory score (r = 0.337, P = .002), whereas DST was negatively correlated with language score (r = -0.355, P = .008). CONCLUSION Low-grade hypercortisolism is associated with elevated BDNF concentrations, which may be a protective factor for memory function in patients with MACS relative to those with NFAA.
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Affiliation(s)
- Tugba Barlas
- Faculty of Medicine, Department of Endocrinology and Metabolism, Gazi University, 06500 Ankara, Turkey
| | - Muhammed Hakan Aksu
- Faculty of Medicine, Department of Psychiatry, Gazi University, 06500 Ankara, Turkey
| | - Ethem Turgay Cerit
- Faculty of Medicine, Department of Endocrinology and Metabolism, Gazi University, 06500 Ankara, Turkey
| | - Mehmet Muhittin Yalcin
- Faculty of Medicine, Department of Endocrinology and Metabolism, Gazi University, 06500 Ankara, Turkey
| | - Mujde Akturk
- Faculty of Medicine, Department of Endocrinology and Metabolism, Gazi University, 06500 Ankara, Turkey
| | - Fusun Balos Toruner
- Faculty of Medicine, Department of Endocrinology and Metabolism, Gazi University, 06500 Ankara, Turkey
| | - Mehmet Ayhan Karakoc
- Faculty of Medicine, Department of Endocrinology and Metabolism, Gazi University, 06500 Ankara, Turkey
| | - Alev Eroglu Altinova
- Faculty of Medicine, Department of Endocrinology and Metabolism, Gazi University, 06500 Ankara, Turkey
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2
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Ning Y, Feng S, Zheng S, Wu Z, Liu X, Dong L, Jia H. How BDNF affects working memory in acute sleep deprivation: The mediating role of spontaneous brain activity. Sleep Med 2024; 118:1-8. [PMID: 38564888 DOI: 10.1016/j.sleep.2024.03.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 02/11/2024] [Accepted: 03/16/2024] [Indexed: 04/04/2024]
Abstract
The brain-derived neurotrophic factor (BDNF) mediates the plasticity associated with memory processing, and compensatorily increases after acute sleep deprivation (SD). However, whether the altered spontaneous brain activity mediates the association between BDNF and working memory in SD remains unknown. Here, we aimed to probe the mediating role of the spontaneous brain activity between plasma BDNF and WM function in SD. A total of 30 healthy subjects with regular sleep were enrolled in this study. Resting-sate functional magnetic resonance imaging (fMRI) scans and the peripheral blood were collected before and after 24 h SD. All participants also received n-back task assessing working memory (WM) performance. The amplitude of low-frequency fluctuation (ALFF) and fractional ALFF (fALFF) were calculated to reflect the intensity of regional spontaneous brain activity. Plasma BDNF was measured by sandwich ELISA. Our results revealed a significant decline in WM and increase in plasma BDNF level after SD, and negative association between the changed WM performance and plasma BDNF level. Specially, the ALFF of the left inferior parietal cortex and right inferior frontal cortex, and fALFF of the left anterior cingulate and medial prefrontal cortex and left posterior opercular cortex regulated the association between the BDNF and one-back reaction time respectively. Our results suggest that the association between BDNF and working memory may be mediated through regional spontaneous brain activity involving in the cerebral cortex, which may provide new sight into the interaction between neurotrophic factors and cognition, and potential targets for noninvasive brain stimulation on WM decline after acute SD.
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Affiliation(s)
- Yanzhe Ning
- Beijing Key Laboratory of Mental Disorders, National Clinical Research Center for Mental Disorders & National Center for Mental Disorders, Beijing Anding Hospital, Capital Medical University, Beijing, China; Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China.
| | - Sitong Feng
- Beijing Key Laboratory of Mental Disorders, National Clinical Research Center for Mental Disorders & National Center for Mental Disorders, Beijing Anding Hospital, Capital Medical University, Beijing, China; Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China
| | - Sisi Zheng
- Beijing Key Laboratory of Mental Disorders, National Clinical Research Center for Mental Disorders & National Center for Mental Disorders, Beijing Anding Hospital, Capital Medical University, Beijing, China; Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China
| | - Ziyao Wu
- Beijing Key Laboratory of Mental Disorders, National Clinical Research Center for Mental Disorders & National Center for Mental Disorders, Beijing Anding Hospital, Capital Medical University, Beijing, China; Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China
| | - Xinzi Liu
- Beijing Key Laboratory of Mental Disorders, National Clinical Research Center for Mental Disorders & National Center for Mental Disorders, Beijing Anding Hospital, Capital Medical University, Beijing, China; Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China
| | - Linrui Dong
- Beijing Key Laboratory of Mental Disorders, National Clinical Research Center for Mental Disorders & National Center for Mental Disorders, Beijing Anding Hospital, Capital Medical University, Beijing, China; Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China
| | - Hongxiao Jia
- Beijing Key Laboratory of Mental Disorders, National Clinical Research Center for Mental Disorders & National Center for Mental Disorders, Beijing Anding Hospital, Capital Medical University, Beijing, China; Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China.
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Lin Y, Yan J, Guo X, Lin H, Ruan C, Dai Y, Wang S, Cao Y, Xiang Q, Yang M, Liu W, Chen L. Effects of Exercise Training Under Hypoxia Versus Normoxia on Cognitive Function in Clinical and Non-Clinical Populations: A Systematic Review and Meta-analysis. Arch Phys Med Rehabil 2024; 105:975-987. [PMID: 37660776 DOI: 10.1016/j.apmr.2023.08.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 07/27/2023] [Accepted: 08/12/2023] [Indexed: 09/05/2023]
Abstract
OBJECTIVE To compare the effects of exercise training under hypoxia versus normoxia on cognitive function in clinical and non-clinical populations. DATA SOURCES From inception to June 13th, 2022, a systematic search was performed on PubMed, Web of Science, Embase, Scopus, and Cochrane Central Register of Controlled Trials. STUDY SELECTION Randomized controlled trials comparing the effects of exercise under hypoxic vs normoxic on cognition in clinical and non-clinical populations were included. The systematic search generated 14,894 relevant studies, of which 12 were finally included. DATA EXTRACTION Two reviewers independently extracted data from included studies. Results were expressed as standardized mean difference (SMD). Each included study was assessed using the Cochrane Risk of Bias 1.0 (RoB1.0) tool. Finally, the Grading of Recommendations, Assessment, Development and Evaluation (GRADE) system was used to rate the certainty of evidence for each outcome. DATA SYNTHESIS Overall, 12 studies with a total of 338 participants met the inclusion criteria. The pooled results suggested that hypoxia exercise had a small but not statistically significant positive effect on overall cognitive function (SMD=0.064, 95% confidence interval (CI): -0.156-0.284, P=.567, very low-certainty evidence), when compared with normoxic exercise. Regarding the domain-specific cognitive functions, there was a medium and significant positive effect on memory (SMD=0.594, 95% CI: 0.068 to 1.120, P=.027, very low-certainty evidence), while effects on visuospatial function (SMD=0.490, 95% CI: -0.030 to 1.010, P=.065, very low-certainty evidence), attention (SMD=0.037, 95% CI: -0.340 to 0.414, P=.847, very low-certainty evidence), executive function (SMD=0.096, 95% CI: -0.268 to 0.460, P=.605, very low-certainty evidence), and processing speed (SMD=-0.145, 95% CI: -0.528 to 0.239, P=.459, very low-certainty evidence) were not statistically significant. CONCLUSIONS The current pooled results revealed that hypoxic exercise was related to improved cognitive performance. Nevertheless, exercise under hypoxia did not have a significant advantage in cognitive promotion when compared with exercise under normoxia.
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Affiliation(s)
- Yanting Lin
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China
| | - Jiamin Yan
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China
| | - Xiaoqin Guo
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China
| | - Huawei Lin
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China
| | - Chendong Ruan
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China
| | - Yaling Dai
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China
| | - Sinuo Wang
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China
| | - Yajun Cao
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China
| | - Qing Xiang
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China
| | - Minguang Yang
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China
| | - Weilin Liu
- The Institute of Rehabilitation Industry, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China
| | - Lidian Chen
- The Institute of Rehabilitation Industry, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China.
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4
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Lomeli N, Pearre DC, Cruz M, Di K, Ricks-Oddie JL, Bota DA. Cisplatin induces BDNF downregulation in middle-aged female rat model while BDNF enhancement attenuates cisplatin neurotoxicity. Exp Neurol 2024; 375:114717. [PMID: 38336286 PMCID: PMC11087041 DOI: 10.1016/j.expneurol.2024.114717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 01/04/2024] [Accepted: 02/06/2024] [Indexed: 02/12/2024]
Abstract
Cancer-related cognitive impairments (CRCI) are neurological complications associated with cancer treatment, and greatly affect cancer survivors' quality of life. Brain-derived neurotrophic factor (BDNF) plays an essential role in neurogenesis, learning and memory. The reduction of BDNF is associated with the decrease in cognitive function in various neurological disorders. Few pre-clinical studies have reported on the effects of chemotherapy and medical stress on BDNF levels and cognition. The present study aimed to compare the effects of medical stress and cisplatin on serum BDNF levels and cognitive function in 9-month-old female Sprague Dawley rats to age-matched controls. Serum BDNF levels were collected longitudinally during cisplatin treatment, and cognitive function was assessed by novel object recognition (NOR) 14 weeks post-cisplatin initiation. Terminal BDNF levels were collected 24 weeks after cisplatin initiation. In cultured hippocampal neurons, we screened three neuroprotective agents, riluzole (an approved treatment for amyotrophic lateral sclerosis), as well as the ampakines CX546 and CX1739. We assessed dendritic arborization by Sholl analysis and dendritic spine density by quantifying postsynaptic density-95 (PSD-95) puncta. Cisplatin and exposure to medical stress reduced serum BDNF levels and impaired object discrimination in NOR compared to age-matched controls. Pharmacological BDNF augmentation protected neurons against cisplatin-induced reductions in dendritic branching and PSD-95. Ampakines (CX546 and CX1739) and riluzole did not affect the antitumor efficacy of cisplatin in vitro. In conclusion, we established the first middle-aged rat model of cisplatin-induced CRCI, assessing the contribution of medical stress and longitudinal changes in BDNF levels on cognitive function, although future studies are warranted to assess the efficacy of BDNF enhancement in vivo on synaptic plasticity. Collectively, our results indicate that cancer treatment exerts long-lasting changes in BDNF levels, and support BDNF enhancement as a potential preventative approach to target CRCI with therapeutics that are FDA approved and/or in clinical study for other indications.
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Affiliation(s)
- Naomi Lomeli
- Department of Neurology, University of California Irvine, Irvine, CA, USA
| | - Diana C Pearre
- Gynecologic Oncology, Providence Specialty Medical Group, Burbank, CA, USA
| | - Maureen Cruz
- Department of Neurology, University of California Irvine, Irvine, CA, USA
| | - Kaijun Di
- Department of Neurology, University of California Irvine, Irvine, CA, USA
| | - Joni L Ricks-Oddie
- Center for Statistical Consulting, Department of Statistics, University of California Irvine, Irvine, CA, USA; Biostatistics, Epidemiology and Research Design Unit, Institute for Clinical and Translational Sciences, University of California Irvine, Irvine, CA, USA
| | - Daniela A Bota
- Department of Neurology, University of California Irvine, Irvine, CA, USA; Chao Family Comprehensive Cancer Center, University of California Irvine, Irvine, CA, USA.
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5
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AlRuwaili R, Al-Kuraishy HM, Al-Gareeb AI, Ali NH, Alexiou A, Papadakis M, Saad HM, Batiha GES. The Possible Role of Brain-derived Neurotrophic Factor in Epilepsy. Neurochem Res 2024; 49:533-547. [PMID: 38006577 PMCID: PMC10884085 DOI: 10.1007/s11064-023-04064-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 11/11/2023] [Accepted: 11/14/2023] [Indexed: 11/27/2023]
Abstract
Epilepsy is a neurological disease characterized by repeated seizures. Despite of that the brain-derived neurotrophic factor (BDNF) is implicated in the pathogenesis of epileptogenesis and epilepsy, BDNF may have a neuroprotective effect against epilepsy. Thus, the goal of the present review was to highlight the protective and detrimental roles of BDNF in epilepsy. In this review, we also try to find the relation of BDNF with other signaling pathways and cellular processes including autophagy, mTOR pathway, progranulin (PGN), and α-Synuclein (α-Syn) which negatively and positively regulate BDNF/tyrosine kinase receptor B (TrkB) signaling pathway. Therefore, the assessment of BDNF levels in epilepsy should be related to other neuronal signaling pathways and types of epilepsy in both preclinical and clinical studies. In conclusion, there is a strong controversy concerning the potential role of BDNF in epilepsy. Therefore, preclinical, molecular, and clinical studies are warranted in this regard.
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Affiliation(s)
- Raed AlRuwaili
- Department of Internal Medicine, College of Medicine, Jouf University, Sakaka, Saudi Arabia
| | - Hayder M Al-Kuraishy
- Department of Clinical Pharmacology and Medicine, College of Medicine, ALmustansiriyia University, P.O. Box 14132, Baghdad, Iraq
| | - Ali I Al-Gareeb
- Department of Clinical Pharmacology and Medicine, College of Medicine, ALmustansiriyia University, P.O. Box 14132, Baghdad, Iraq
| | - Naif H Ali
- Department of Internal Medicine, Medical College, Najran University, Najran, Saudi Arabia
| | - Athanasios Alexiou
- University Centre for Research & Development, Chandigarh University, Chandigarh-Ludhiana Highway, Mohali, Punjab, India
- Department of Research & Development, Funogen, Athens, Greece
- Department of Research & Development, AFNP Med, Wien, 1030, Austria
- Department of Science and Engineering, Novel Global Community Educational Foundation, Hebersham, NSW, 2770, Australia
| | - Marios Papadakis
- Department of Surgery II, University Hospital Witten-Herdecke, University of Witten-Herdecke, Heusnerstrasse 40, 42283, Wuppertal, Germany.
| | - Hebatallah M Saad
- Department of Pathology, Faculty of Veterinary Medicine, Matrouh University, Matrouh, 51744, Egypt.
| | - Gaber El-Saber Batiha
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour, AlBeheira, 22511, Egypt.
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6
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Baghaei A, Zoshk MY, Hosseini M, Fasihi H, Nassireslami E, Shayesteh S, Laripour R, Amoli AE, Heidari R, Chamanara M. Prominent genetic variants and epigenetic changes in post-traumatic stress disorder among combat veterans. Mol Biol Rep 2024; 51:325. [PMID: 38393604 DOI: 10.1007/s11033-024-09276-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Accepted: 01/19/2024] [Indexed: 02/25/2024]
Abstract
Post-traumatic stress disorder (PTSD) is one of the most widespread and disabling psychiatric disorders among combat veterans. Substantial interindividual variability in susceptibility to PTSD suggests the presence of different risk factors for this disorder. Twin and family studies confirm genetic factors as important risk factors for PTSD. In addition to genetic factors, epigenetic factors, especially DNA methylation, can be considered as a potential mechanism in changing the risk of PTSD. So far, many genetic and epigenetic association studies have been conducted in relation to PTSD. In genetic studies, many single nucleotide polymorphisms have been identified as PTSD risk factors. Meanwhile, the variations in catecholamines-related genes, serotonin transporter and receptors, brain-derived neurotrophic factor, inflammatory factors, and apolipoprotein E are the most prominent candidates. CpG methylation in the upstream regions of many genes is also considered a PTSD risk factor. Accurate identification of genetic and epigenetic changes associated with PTSD can lead to the presentation of suitable biomarkers for susceptible individuals to this disorder. This study aimed to delineate prominent genetic variations and epigenetic changes associated with post-traumatic stress disorder in military veterans who have experienced combat, focusing on genetic and epigenetic association studies.
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Affiliation(s)
- Ahmadali Baghaei
- Trauma Research center, AJA university of Medical sciences, Tehran, Iran
| | | | - Mohsen Hosseini
- The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran
| | - Hossein Fasihi
- Biomaterial and Medicinal Chemistry Research Center, AJA University of Medical Science, Tehran, Iran
| | - Ehsan Nassireslami
- Toxicology Research Center, AJA University of Medical Sciences, Tehran, Iran
- Department of Pharmacology and Toxicology, School of Medicine, AJA University of Medical Sciences, Tehran, Iran
| | - Sevda Shayesteh
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Alborz University of Medical Sciences, Karaj, Iran
| | - Reza Laripour
- Social and Preventive Medicine Department, School of Medicine, AJA University of Medical Sciences, Tehran, Iran
| | - Aynaz Eslami Amoli
- Trauma Research center, AJA university of Medical sciences, Tehran, Iran
| | - Reza Heidari
- Cancer Epidemiology Research Center (AJA-CERTC), AJA University of Medical Sciences, Tehran, Iran.
- Medical Biotechnology Research Center, AJA University of Medical Sciences, Tehran, Iran.
| | - Mohsen Chamanara
- Toxicology Research Center, AJA University of Medical Sciences, Tehran, Iran.
- Student research committee, AJA University of Medical Sciences, Tehran, Iran.
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7
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Kiuchi M, Uno T, Hasegawa T, Koyama K, Horiuchi M. Influence of short-term hypoxic exposure on spatial learning and memory function and brain-derived neurotrophic factor in rats-A practical implication to human's lost way. Front Behav Neurosci 2024; 18:1330596. [PMID: 38380151 PMCID: PMC10876868 DOI: 10.3389/fnbeh.2024.1330596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 01/22/2024] [Indexed: 02/22/2024] Open
Abstract
The present study aimed to investigate the effects of a short period of normobaric hypoxic exposure on spatial learning and memory, and brain-derived neurotrophic factor (BDNF) levels in the rat hippocampus. Hypoxic conditions were set at 12.5% O2. We compared all variables between normoxic trials (Norm), after 24 h (Hypo-24 h), and after 72 h of hypoxic exposure (Hypo-72 h). Spatial learning and memory were evaluated by using a water-finding task in an open field. Time to find water drinking fountains was significantly extended in Hypo 24 h (36.2 ± 21.9 s) compared to those in Norm (17.9 ± 12.8 s; P < 0.05), whereas no statistical differences between Norm and Hypo-72 h (22.7 ± 12.3 s). Moreover, hippocampal BDNF level in Hypo-24 h was significantly lower compared to Norm (189.4 ± 28.4 vs. 224.9 ± 47.7 ng/g wet tissue, P < 0.05), whereas no statistically differences in those between Norm and Hypo-72 h (228.1 ± 39.8 ng/g wet tissue). No significant differences in the changes in corticosterone and adrenocorticotropic hormone levels were observed across the three conditions. When data from Hypo-24 h and Hypo-72 h of hypoxia were pooled, there was a marginal negative relationship between the time to find drinking fountains and BDNF (P < 0.1), and was a significant negative relationship between the locomotor activities and BDNF (P < 0.05). These results suggest that acute hypoxic exposure (24 h) may impair spatial learning and memory; however, it recovered after 72 h of hypoxic exposure. These changes in spatial learning and memory may be associated with changes in the hippocampal BDNF levels in rats.
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Affiliation(s)
- Masataka Kiuchi
- Graduate School Department of Interdisciplinary Research, University of Yamanashi, Kofu, Yamanashi, Japan
| | - Tadashi Uno
- Division of Human Environmental Science, Mount Fuji Research Institute, Fujiyoshida, Yamanashi, Japan
| | - Tatsuya Hasegawa
- Division of Human Environmental Science, Mount Fuji Research Institute, Fujiyoshida, Yamanashi, Japan
| | - Katsuhiro Koyama
- Faculty of Sport Science, Yamanashi Gakuin University, Kofu, Yamanashi, Japan
| | - Masahiro Horiuchi
- Division of Human Environmental Science, Mount Fuji Research Institute, Fujiyoshida, Yamanashi, Japan
- Faculty of Sports and Life Science, National Institute of Fitness and Sports in Kanoya, Kanoya, Kagoshima, Japan
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Shen R, Ardianto C, Celia C, Sidharta VM, Sasmita PK, Satriotomo I, Turana Y. Brain-derived neurotrophic factor interplay with oxidative stress: neuropathology approach in potential biomarker of Alzheimer's disease. Dement Neuropsychol 2023; 17:e20230012. [PMID: 38053647 PMCID: PMC10695442 DOI: 10.1590/1980-5764-dn-2023-0012] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 07/05/2023] [Accepted: 07/30/2023] [Indexed: 12/07/2023] Open
Abstract
The aging population poses a serious challenge concerning an increased prevalence of Alzheimer's disease (AD) and its impact on global burden, morbidity, and mortality. Oxidative stress, as a molecular hallmark that causes susceptibility in AD, interplays to other AD-related neuropathology cascades and decreases the expression of central and circulation brain-derived neurotrophic factor (BDNF), an essential neurotrophin that serves as nerve development and survival, and synaptic plasticity in AD. By its significant correlation with the molecular and clinical progression of AD, BDNF can potentially be used as an objectively accurate biomarker for AD diagnosis and progressivity follow-up in future clinical practice. This comprehensive review highlights the oxidative stress interplay with BDNF in AD neuropathology and its potential use as an AD biomarker.
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Affiliation(s)
- Robert Shen
- Atma Jaya Catholic University of Indonesia, School of Medicine and Health Sciences, Jakarta, Indonesia
| | - Christian Ardianto
- Atma Jaya Catholic University of Indonesia, School of Medicine and Health Sciences, Jakarta, Indonesia
| | - Celia Celia
- Atma Jaya Catholic University of Indonesia, School of Medicine and Health Sciences, Jakarta, Indonesia
| | - Veronika Maria Sidharta
- Atma Jaya Catholic University of Indonesia, School of Medicine and Health Sciences, Jakarta, Indonesia
| | - Poppy Kristina Sasmita
- Atma Jaya Catholic University of Indonesia, School of Medicine and Health Sciences, Jakarta, Indonesia
| | - Irawan Satriotomo
- University of Florida, Gainesville, Department of Neurology, Florida, USA
- Satriotomo Foundation, Indonesia Neuroscience Institute, Jakarta, Indonesia
| | - Yuda Turana
- Atma Jaya Catholic University of Indonesia, School of Medicine and Health Sciences, Jakarta, Indonesia
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9
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Ng DQ, Cheng I, Wang C, Tan CJ, Toh YL, Koh YQ, Ke Y, Foo KM, Chan RJ, Ho HK, Chew L, Bin Harunal Rashid MF, Chan A. Brain-derived neurotrophic factor as a biomarker in cancer-related cognitive impairment among adolescent and young adult cancer patients. Sci Rep 2023; 13:16298. [PMID: 37770565 PMCID: PMC10539508 DOI: 10.1038/s41598-023-43581-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Accepted: 09/26/2023] [Indexed: 09/30/2023] Open
Abstract
Brain-derived neurotrophic factor (BDNF) improves cognitive function by stimulating neurogenesis and neuroplasticity. We hypothesize that higher plasma BDNF levels are protective against cognitive toxicity among adolescent and young adult cancer patients (15-39 years old). In a prospective, longitudinal study, we recruited 74 newly diagnosed cancer and 118 age-matched non-cancer controls who completed the Cambridge Neuropsychological Test Automated Battery (CANTAB), Functional Assessment of Cancer Therapy-Cognitive Function questionnaire (FACT-Cog) and blood draws. Plasma BDNF was quantified using an enzyme-linked immunosorbent assay. Genomic DNA from buffy coat was genotyped for BDNF Val66Met. Most cancer participants were diagnosed with breast (24%) and head/neck (22%) cancers. After adjusting for sociodemographic variables (age, gender, race, marital status, education years), cancer participants had lower BDNF levels (ng/mL) at baseline (median: 10.7 vs 21.6, p < 0.001) and 6-months post-baseline (median: 8.2 vs 15.3, p = 0.001) compared to non-cancer controls. Through linear mixed modelling adjusted for sociodemographic variables, baseline cognition, fatigue, psychological distress, and time, we observed that among cancer participants, lower baseline BDNF levels were associated with worse attention (p = 0.029), memory (p = 0.018) and self-perceived cognitive abilities (p = 0.020) during cancer treatment. Met/Met was associated with enhanced executive function compared to Val/Val (p = 0.012). Plasma BDNF may serve as a predictive biomarker of cancer-related cognitive impairment.
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Affiliation(s)
- Ding Quan Ng
- Department of Clinical Pharmacy Practice, University of California Irvine, 802 W Peltason Dr, Irvine, CA, 92697-4625, USA
| | - Ivy Cheng
- Department of Pharmacy, National University of Singapore, Singapore, Singapore
| | - Claire Wang
- Department of Pharmacy, National University of Singapore, Singapore, Singapore
| | - Chia Jie Tan
- Department of Pharmacy, National University of Singapore, Singapore, Singapore
| | - Yi Long Toh
- Department of Pharmacy, National University of Singapore, Singapore, Singapore
| | - Yong Qin Koh
- Department of Pharmacy, National University of Singapore, Singapore, Singapore
| | - Yu Ke
- Department of Pharmacy, National University of Singapore, Singapore, Singapore
| | - Koon Mian Foo
- Department of Pharmacy, KK Women and Children's Hospital, Singapore, Singapore
| | - Raymond J Chan
- Caring Futures Institutes, College of Nursing and Health Sciences, Flinders University, Adelaide, Australia
| | - Han Kiat Ho
- Department of Pharmacy, National University of Singapore, Singapore, Singapore
| | - Lita Chew
- Department of Pharmacy, National University of Singapore, Singapore, Singapore
- Department of Pharmacy, National Cancer Centre Singapore, Singapore, Singapore
| | | | - Alexandre Chan
- Department of Clinical Pharmacy Practice, University of California Irvine, 802 W Peltason Dr, Irvine, CA, 92697-4625, USA.
- Department of Pharmacy, National Cancer Centre Singapore, Singapore, Singapore.
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10
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Usmani MT, Krattli RP, El-Khatib SM, Le ACD, Smith SM, Baulch JE, Ng DQ, Acharya MM, Chan A. BDNF Augmentation Using Riluzole Reverses Doxorubicin-Induced Decline in Cognitive Function and Neurogenesis. Neurotherapeutics 2023; 20:838-852. [PMID: 36720792 PMCID: PMC10275819 DOI: 10.1007/s13311-022-01339-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/23/2022] [Indexed: 02/02/2023] Open
Abstract
Cancer-related cognitive impairment (CRCI) considerably affects the quality of life of millions of cancer survivors. Brain-derived neurotrophic factor (BDNF) has been shown to promote survival, differentiation, and maintenance of in vivo dentate neurogenesis, and chemotherapy induces a plethora of physiological and cellular alterations, including a decline in neurogenesis and increased neuroinflammation linked with cognitive impairments. In our clinical studies, breast cancer patients treated with doxorubicin (Adriamycin®, ADR) experienced a significant reduction in the blood levels of BDNF that was associated with a higher risk of CRCI. Our past rodent studies in CRCI have also shown a significant reduction in dentate neurogenesis accompanied by cognitive impairment. In this study, using a female mouse model of ADR-induced cognitive decline, we tested the impact of riluzole (RZ), an orally active BDNF-enhancing medication that is FDA-approved for amyotrophic lateral sclerosis. ADR-treated mice receiving RZ in the drinking water for 1 month showed significant improvements in hippocampal-dependent learning and memory function (spatial recognition), fear extinction memory consolidation, and reduced anxiety-like behavior. RZ prevented chemotherapy-induced reductions of BDNF levels in the hippocampus. Importantly, RZ mitigated chemotherapy-induced loss of newly born, immature neurons, dentate neurogenesis, and neuroinflammation. In conclusion, this data provides pre-clinical evidence for a translationally feasible approach to enhance the neuroprotective effects of RZ treatment to prevent CRCI.
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Affiliation(s)
- Manal T Usmani
- Department of Anatomy and Neurobiology, School of Medicine, University of California, Irvine, CA, USA
| | - Robert P Krattli
- Department of Anatomy and Neurobiology, School of Medicine, University of California, Irvine, CA, USA
| | - Sanad M El-Khatib
- Department of Anatomy and Neurobiology, School of Medicine, University of California, Irvine, CA, USA
| | - Anh C D Le
- Department of Anatomy and Neurobiology, School of Medicine, University of California, Irvine, CA, USA
| | - Sarah M Smith
- Department of Radiation Oncology, School of Medicine, University of California, Irvine, CA, USA
| | - Janet E Baulch
- Department of Radiation Oncology, School of Medicine, University of California, Irvine, CA, USA
| | - Ding Quan Ng
- Department of Clinical Pharmacy Practice, School of Pharmacy & Pharmaceutical Sciences, University of California, Irvine, CA, USA
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, University of California, Irvine, CA, USA
| | - Munjal M Acharya
- Department of Anatomy and Neurobiology, School of Medicine, University of California, Irvine, CA, USA.
- Department of Radiation Oncology, School of Medicine, University of California, Irvine, CA, USA.
| | - Alexandre Chan
- Department of Clinical Pharmacy Practice, School of Pharmacy & Pharmaceutical Sciences, University of California, Irvine, CA, USA.
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, University of California, Irvine, CA, USA.
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11
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Nikolac Perkovic M, Borovecki F, Filipcic I, Vuic B, Milos T, Nedic Erjavec G, Konjevod M, Tudor L, Mimica N, Uzun S, Kozumplik O, Svob Strac D, Pivac N. Relationship between Brain-Derived Neurotrophic Factor and Cognitive Decline in Patients with Mild Cognitive Impairment and Dementia. Biomolecules 2023; 13:biom13030570. [PMID: 36979505 PMCID: PMC10046678 DOI: 10.3390/biom13030570] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/10/2023] [Accepted: 03/17/2023] [Indexed: 03/30/2023] Open
Abstract
In the last decade, increasing evidence has emerged linking alterations in the brain-derived neurotrophic factor (BDNF) expression with the development of Alzheimer's disease (AD). Because of the important role of BDNF in cognition and its association with AD pathogenesis, the aim of this study was to evaluate the potential difference in plasma BDNF concentrations between subjects with mild cognitive impairment (MCI; N = 209) and AD patients (N = 295) and to determine the possible association between BDNF plasma levels and the degree of cognitive decline in these individuals. The results showed a significantly higher (p < 0.001) concentration of plasma BDNF in subjects with AD (1.16; 0.13-21.34) compared with individuals with MCI (0.68; 0.02-19.14). The results of the present study additionally indicated a negative correlation between cognitive functions and BDNF plasma concentrations, suggesting higher BDNF levels in subjects with more pronounced cognitive decline. The correlation analysis revealed a significant negative correlation between BDNF plasma levels and both Mini-Mental State Examination (p < 0.001) and Clock Drawing test (p < 0.001) scores. In conclusion, the results of our study point towards elevated plasma BDNF levels in AD patients compared with MCI subjects, which may be due to the body's attempt to counteract the early and middle stages of neurodegeneration.
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Affiliation(s)
- Matea Nikolac Perkovic
- Laboratory for Molecular Neuropsychiatry, Division of Molecular Medicine, Ruder Boskovic Institute, 10000 Zagreb, Croatia
| | - Fran Borovecki
- Department of Neurology, University Hospital Centre Zagreb, 10000 Zagreb, Croatia
- School of Medicine, University of Zagreb, 10000 Zagreb, Croatia
| | - Igor Filipcic
- Psychiatric Hospital "Sveti Ivan", 10090 Zagreb, Croatia
| | - Barbara Vuic
- Laboratory for Molecular Neuropsychiatry, Division of Molecular Medicine, Ruder Boskovic Institute, 10000 Zagreb, Croatia
| | - Tina Milos
- Laboratory for Molecular Neuropsychiatry, Division of Molecular Medicine, Ruder Boskovic Institute, 10000 Zagreb, Croatia
| | - Gordana Nedic Erjavec
- Laboratory for Molecular Neuropsychiatry, Division of Molecular Medicine, Ruder Boskovic Institute, 10000 Zagreb, Croatia
| | - Marcela Konjevod
- Laboratory for Molecular Neuropsychiatry, Division of Molecular Medicine, Ruder Boskovic Institute, 10000 Zagreb, Croatia
| | - Lucija Tudor
- Laboratory for Molecular Neuropsychiatry, Division of Molecular Medicine, Ruder Boskovic Institute, 10000 Zagreb, Croatia
| | - Ninoslav Mimica
- School of Medicine, University of Zagreb, 10000 Zagreb, Croatia
- Department for Biological Psychiatry and Psychogeriatrics, University Psychiatric Hospital Vrapče, 10090 Zagreb, Croatia
| | - Suzana Uzun
- School of Medicine, University of Zagreb, 10000 Zagreb, Croatia
- Department for Biological Psychiatry and Psychogeriatrics, University Psychiatric Hospital Vrapče, 10090 Zagreb, Croatia
| | - Oliver Kozumplik
- Department for Biological Psychiatry and Psychogeriatrics, University Psychiatric Hospital Vrapče, 10090 Zagreb, Croatia
| | - Dubravka Svob Strac
- Laboratory for Molecular Neuropsychiatry, Division of Molecular Medicine, Ruder Boskovic Institute, 10000 Zagreb, Croatia
| | - Nela Pivac
- Laboratory for Molecular Neuropsychiatry, Division of Molecular Medicine, Ruder Boskovic Institute, 10000 Zagreb, Croatia
- University of Applied Sciences Hrvatsko Zagorje Krapina, 49000 Krapina, Croatia
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12
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Henrique PPB, Perez FMP, Dorneles G, Peres A, Korb A, Elsner V, De Marchi ACB. Exergame and/or conventional training-induced neuroplasticity and cognitive improvement by engaging epigenetic and inflammatory modulation in elderly women: A randomized clinical trial. Physiol Behav 2023; 258:113996. [PMID: 36252683 DOI: 10.1016/j.physbeh.2022.113996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 10/10/2022] [Accepted: 10/11/2022] [Indexed: 11/06/2022]
Abstract
OBJECTIVE To evaluate the acute and long-term impact of exergaming (EXE) and conventional therapy (CON) in the peripheral levels of brain-derived neurotrophic factor (BDNF), inflammatory markers (interleukin [IL]-1b, IL-6, IL-8, and tumor necrosis factor-alpha [TNF-α]) and epigenetic mechanisms (global histone H3 and H4 acetylation levels in mononuclear cells) of healthy elderly women. We also evaluated the effect of intervention on cognitive performance in these individuals. METHODS Twenty-two elderly women were randomly assigned into two groups: EXE (n = 12) and CON (n = 10). Both interventions were performed twice a week for 6 weeks (12 sessions). Blood samples were obtained before intervention, after the first session, and 1 hour after the last session. Cognitive performance was evaluated before and after intervention. RESULTS Both EXE and CON interventions ameliorated cognitive performance, improved inflammatory profile, enhanced BDNF levels, and induced histone H4 and H3 hyperacetylation status in elderly women. CONCLUSION Our study demonstrated that the proposed interventions can be considered important strategies capable of promoting cognitive improvement in healthy elderly women. The acetylation status of histones and inflammatory cytokines are possible molecular mechanisms that mediate this beneficial response, being distinctly modulated by acute and long-term exposure.
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Affiliation(s)
| | - Fabrízzio Martin Pelle Perez
- Programa de Pós-Graduação em Envelhecimento Humano, Instituto de Saúde, Universidade de Passo Fundo, Passo Fundo, Brazil
| | - Gilson Dorneles
- Laboratório de Imunologia Celular e Molecular, Departamento de Ciências Básicas da Saúde, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brazil
| | - Alessandra Peres
- Laboratório de Imunologia Celular e Molecular, Departamento de Ciências Básicas da Saúde, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brazil
| | - Arthiese Korb
- Universidade Regional Integrada do Alto Uruguai e das Missões - URI Campus de Erechim, Brazil
| | - Viviane Elsner
- Programa de Pós-Graduação em Ciências Biológicas: Fisiologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Ana Carolina Bertoletti De Marchi
- Programa de Pós-Graduação em Envelhecimento Humano, Instituto de Saúde, Universidade de Passo Fundo, Passo Fundo, Brazil; Programa de Pós-Graduação em Computação Aplicada, Instituto de Tecnologia, Universidade de Passo Fundo, Passo Fundo, Brazil
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13
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Louras P, Brown LM, Gomez R, Warren SL, Fairchild JK. BDNF Val66Met Moderates the Effects of Hypertension on Executive Functioning in Older Adults Diagnosed With aMCI. Am J Geriatr Psychiatry 2022; 30:1223-1233. [PMID: 35779988 DOI: 10.1016/j.jagp.2022.05.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 05/16/2022] [Accepted: 05/25/2022] [Indexed: 01/25/2023]
Abstract
OBJECTIVE To investigate whether the BDNF Val66Met polymorphism influences the associations of hypertension, executive functioning and processing speed in older adults diagnosed with amnestic Mild Cognitive Impairment (aMCI). DESIGN Secondary data analysis using moderation modeling. SETTING Veterans Affairs Hospital, Palo Alto, CA. PARTICIPANTS Sample included 108 community-dwelling volunteers (mean age 71.3 ± 9.2 years) diagnosed with aMCI. MEASUREMENTS Cognitive performance was evaluated from multiple baseline assessments (Trail Making Test; Stroop Color-Word Test; Symbol Digit Modality Test) and grouped into standardized composite scores representing executive function and processing speed domains. BDNF genotypes were determined from whole blood samples. Hypertension was assessed from resting blood pressures or by self-report. RESULTS Controlling for age, BDNF Val66Met moderated the effects of hypertension on executive functioning, but added no significant variance to processing speed scores. Specifically, hypertensive carriers of the BDNF Met allele performed significantly below the sample mean on tasks of executive functioning, and evidenced significantly lower scores when compared to Val-Val homozygotes and normotensive participants. CONCLUSIONS Results posit that the executive functioning of non-demented older adults may be susceptible to interactions between BDNF genotype and hypertension, and Val-Val homozygotes and normotensive older adults may be more resilient to these effects of cognitive change. Further research is needed to understand the underlying processes and to implement strategies that target modifiable risk factors and promote cognitive resilience.
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Affiliation(s)
- Peter Louras
- Sierra Pacific Mental Illness Research (PL, JKF), Education, and Clinical Center (MIRECC) at VA Palo Alto Health Care System, Palo Alto, CA; Department of Psychiatry and Behavioral Sciences (PL, LMB, JKF), Stanford University School of Medicine, Stanford, CA
| | - Lisa M Brown
- Department of Psychiatry and Behavioral Sciences (PL, LMB, JKF), Stanford University School of Medicine, Stanford, CA; Department of Psychology (LMB, RG, SLW), Palo Alto University, Palo Alto, CA
| | - Rowena Gomez
- Department of Psychology (LMB, RG, SLW), Palo Alto University, Palo Alto, CA
| | - Stacie L Warren
- Department of Psychology (LMB, RG, SLW), Palo Alto University, Palo Alto, CA
| | - Jennifer Kaci Fairchild
- Sierra Pacific Mental Illness Research (PL, JKF), Education, and Clinical Center (MIRECC) at VA Palo Alto Health Care System, Palo Alto, CA; Department of Psychiatry and Behavioral Sciences (PL, LMB, JKF), Stanford University School of Medicine, Stanford, CA.
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14
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Travica N, Aslam H, O'Neil A, Lane MM, Berk M, Gamage E, Walder K, Liu ZS, Segasby T, Marx W. Brain derived neurotrophic factor in perioperative neurocognitive disorders: Current evidence and future directions. Neurobiol Learn Mem 2022; 193:107656. [DOI: 10.1016/j.nlm.2022.107656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 05/25/2022] [Accepted: 06/28/2022] [Indexed: 10/17/2022]
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15
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Ng DQ, Chan D, Agrawal P, Zhao W, Xu X, Acharya M, Chan A. EVIDENCE OF BRAIN-DERIVED NEUROTROPHIC FACTOR IN AMELIORATING CANCER-RELATED COGNITIVE IMPAIRMENT: A SYSTEMATIC REVIEW OF HUMAN STUDIES. Crit Rev Oncol Hematol 2022; 176:103748. [PMID: 35718064 DOI: 10.1016/j.critrevonc.2022.103748] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 06/02/2022] [Accepted: 06/13/2022] [Indexed: 12/27/2022] Open
Abstract
Brain-derived neurotrophic factor (BDNF) plays an essential role in neurogenesis and neuroplasticity and may be a key protein in cancer-related cognitive impairment (CRCI). This systematic review assessed the relationship between BDNF biomarkers and neurocognitive outcomes in cancer patients and survivors. A search in PubMed, Scopus, and PsycINFO yielded 638 articles, of which 26 were eligible. Fourteen (54%)studied BDNF protein levels while 15 (58%) analyzed BDNF rs6265 polymorphism. Of the nine observational studies reporting BDNF plasma/serum levels, five (56%) exhibited a positive association between BDNF and cognitive function. One study reported intra-tumoral BDNF levels that were negatively associated with memory. For rs6265, three (20%) of 15 studies reported an association with cognitive function with inconsistent directions. Among seven neuroimaging studies, three (43%) demonstrated an effect of BDNF on brain function and structure. These results suggest that BDNF is a potential monitoring biomarker and druggable target for CRCI.
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Affiliation(s)
- Ding Quan Ng
- Department of Clinical Pharmacy Practice, University of California, Irvine, Irvine, California, United States of America; Department of Pharmaceutical Sciences, School of Pharmacy & Pharmaceutical Sciences, University of California, Irvine, Irvine, California, United States of America
| | - Daniella Chan
- Department of Pharmaceutical Sciences, School of Pharmacy & Pharmaceutical Sciences, University of California, Irvine, Irvine, California, United States of America
| | - Parisa Agrawal
- Department of Pharmaceutical Sciences, School of Pharmacy & Pharmaceutical Sciences, University of California, Irvine, Irvine, California, United States of America
| | - Weian Zhao
- Department of Pharmaceutical Sciences, School of Pharmacy & Pharmaceutical Sciences, University of California, Irvine, Irvine, California, United States of America; Department of Biological Chemistry, University of California, Irvine, Irvine, California, USA; Department of Biomedical Engineering, The Henry Samueli School of Engineering, University of California, Irvine, Irvine, California, USA; Institute for Immunology, University of California, Irvine, Irvine, California, USA; Sue and Bill Gross Stem Cell Research Center, University of California, Irvine, Irvine, California, USA; Edwards Life Sciences Center for Advanced Cardiovascular Technology, University of California, Irvine, Irvine, California, USA; Chao Family Comprehensive Cancer Center, University of California, Irvine, Irvine, California, USA
| | - Xiangmin Xu
- Department of Anatomy and Neurobiology, University of California, Irvine, Irvine, California, USA; The Center for Neural Circuit Mapping, University of California Irvine, Irvine, California, USA
| | - Munjal Acharya
- Department of Anatomy and Neurobiology, University of California, Irvine, Irvine, California, USA; Department of Radiation Oncology, School of Medicine, University of California, Irvine, Irvine, California, USA
| | - Alexandre Chan
- Department of Clinical Pharmacy Practice, University of California, Irvine, Irvine, California, United States of America; Department of Pharmaceutical Sciences, School of Pharmacy & Pharmaceutical Sciences, University of California, Irvine, Irvine, California, United States of America; Chao Family Comprehensive Cancer Center, University of California, Irvine, Irvine, California, USA.
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16
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Fachim HA, Malipatil N, Siddals K, Donn R, Cortés GY, Dalton CF, Gibson JM, Heald AH. Methylation Status of Exon IV of the Brain-Derived Neurotrophic Factor (BDNF)-Encoding Gene in Patients with Non-Diabetic Hyperglycaemia (NDH) before and after a Lifestyle Intervention. EPIGENOMES 2022; 6:epigenomes6010007. [PMID: 35225959 PMCID: PMC8883958 DOI: 10.3390/epigenomes6010007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 02/08/2022] [Accepted: 02/10/2022] [Indexed: 02/04/2023] Open
Abstract
BDNF signalling in hypothalamic neuronal circuits is thought to regulate mammalian food intake. In light of this, we investigated how a lifestyle intervention influenced serum levels and DNA methylation of BDNF gene in fat tissue and buffy coat of NDH individuals. In total, 20 participants underwent anthropometric measurements/fasting blood tests and adipose tissue biopsy pre-/post-lifestyle (6 months) intervention. DNA was extracted from adipose tissue and buffy coat, bisulphite converted, and pyrosequencing was used to determine methylation levels in exon IV of the BDNF gene. RNA was extracted from buffy coat for gene expression analysis and serum BDNF levels were measured by ELISA. No differences were found in BDNF serum levels, but buffy coat mean BDNF gene methylation decreased post-intervention. There were correlations between BDNF serum levels and/or methylation and cardiometabolic markers. (i) Pre-intervention: for BDNF methylation, we found positive correlations between mean methylation in fat tissue and waist-hip ratio, and negative correlations between mean methylation in buffy coat and weight. (ii) Post-intervention: we found correlations between BDNF mean methylation in buffy coat and HbA1c, BDNF methylation in buffy coat and circulating IGFBP-2, and BDNF serum and insulin. Higher BDNF % methylation levels are known to reduce BNDF expression. The fall in buffy coat mean BDNF methylation plus the association between lower BDNF methylation (so potentially higher BDNF) and higher HbA1c and serum IGFBP-2 (as a marker of insulin sensitivity) and between lower serum BDNF and higher circulating insulin are evidence for the degree of BDNF gene methylation being implicated in insulinisation and glucose homeostasis, particularly after lifestyle change in NDH individuals.
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Affiliation(s)
- Helene A. Fachim
- The School of Medicine and Manchester Academic Health Sciences Centre, University of Manchester, Manchester M13 9PL, UK; (N.M.); (K.S.); (R.D.); (J.M.G.)
- Department of Diabetes and Endocrinology, Salford Royal Hospital, Salford M6 8HD, UK
- Correspondence: (H.A.F.); (A.H.H.); Tel.: +44-161-206-0108 (A.H.H.)
| | - Nagaraj Malipatil
- The School of Medicine and Manchester Academic Health Sciences Centre, University of Manchester, Manchester M13 9PL, UK; (N.M.); (K.S.); (R.D.); (J.M.G.)
- Department of Diabetes and Endocrinology, Salford Royal Hospital, Salford M6 8HD, UK
| | - Kirk Siddals
- The School of Medicine and Manchester Academic Health Sciences Centre, University of Manchester, Manchester M13 9PL, UK; (N.M.); (K.S.); (R.D.); (J.M.G.)
- Department of Diabetes and Endocrinology, Salford Royal Hospital, Salford M6 8HD, UK
| | - Rachelle Donn
- The School of Medicine and Manchester Academic Health Sciences Centre, University of Manchester, Manchester M13 9PL, UK; (N.M.); (K.S.); (R.D.); (J.M.G.)
| | - Gabriela Y. Cortés
- National Research Coordination, Subdirección de Servicios de Salud, Petróleos Mexicanos, Mexico City 11320, Mexico;
| | - Caroline F. Dalton
- Biomolecular Research Centre, Sheffield Hallam University, Sheffield S1 1WB, UK;
| | - J. Martin Gibson
- The School of Medicine and Manchester Academic Health Sciences Centre, University of Manchester, Manchester M13 9PL, UK; (N.M.); (K.S.); (R.D.); (J.M.G.)
- Department of Diabetes and Endocrinology, Salford Royal Hospital, Salford M6 8HD, UK
| | - Adrian H. Heald
- The School of Medicine and Manchester Academic Health Sciences Centre, University of Manchester, Manchester M13 9PL, UK; (N.M.); (K.S.); (R.D.); (J.M.G.)
- Department of Diabetes and Endocrinology, Salford Royal Hospital, Salford M6 8HD, UK
- Correspondence: (H.A.F.); (A.H.H.); Tel.: +44-161-206-0108 (A.H.H.)
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17
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Exergame training-induced neuroplasticity and cognitive improvement in institutionalized older adults: A preliminary investigation. Physiol Behav 2021; 241:113589. [PMID: 34509470 DOI: 10.1016/j.physbeh.2021.113589] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 08/05/2021] [Accepted: 09/07/2021] [Indexed: 11/24/2022]
Abstract
BACKGROUND Prior research has reported cognitive improvements in elderly individuals when mental and physical exercise are practiced simultaneously, as in exergaming. However, the molecular mechanisms driving this beneficial response remain unclear. Moreover, there is robust evidence that regular exercise increases neurotrophic factors and promotes neuroplasticity, contributing to cognitive improvement. This research aimed to assess the impact of a 6-week Xbox 360 Kinect exergame protocol on cognitive function and brain-derived neurotrophic factor (BDNF) levels in institutionalized older individuals. METHODS Participants living in a long-term care facility were included. The intervention (Xbox 360 Kinect exergame protocol) was conducted individually and consisted of two sessions per week (40 min each) over 6 weeks. Participants' cognitive function (Montreal Cognitive Assessment, MoCA) was evaluated before and after the intervention. Blood samples (15 ml) were collected at the same time to measure BDNF levels. RESULTS Although there were no changes in total MoCA scores, exergame training improved the "language" domain and demonstrated a tendency toward an improvement in the "abstraction" and "memory/delayed recall" domains. Furthermore, BDNF levels were significantly increased after the intervention. CONCLUSION BDNF enhancement might mediate, at least in part, the cognitive changes induced by a 6-week Xbox 360 Kinect exergame protocol in institutionalized older adults.
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18
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van den Bosch KA, Verberk IMW, Ebenau JL, van der Lee SJ, Jansen IE, Prins ND, Scheltens P, Teunissen CE, Van der Flier WM. BDNF-Met polymorphism and amyloid-beta in relation to cognitive decline in cognitively normal elderly: the SCIENCe project. Neurobiol Aging 2021; 108:146-154. [PMID: 34601245 DOI: 10.1016/j.neurobiolaging.2021.08.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 08/24/2021] [Accepted: 08/26/2021] [Indexed: 11/25/2022]
Abstract
Brain-derived neurotrophic factor (BNDF) plays a role in synapse integrity. We investigated in 398 cognitively normal adults (60±8years, 41% female, MMSE=28±1) the joint association of the Val66Met polymorphism of the BDNF gene (Met+/-) and plasma BDNF levels and abnormal cerebrospinal fluid (CSF) amyloid-beta status (A+/-) with cognitive decline and dementia risk. Age-, sex- and education-adjusted linear mixed models showed that compared to Met-A-, Met+A+ showed steeper decline on tests of global cognition, memory, language, attention and executive functioning, while Met-A+ showed steeper decline on a smaller number of tests. There were no associations between Met+A- and cognitive decline. Cox models showed that compared to Met-A-, Met+A+ participants were at increased risk of dementia (HR=8.8, 95%CI: 2.8-27.9), as were Met-A+ participants (HR=6.5, 95%CI: 2.2-19.5). Lower plasma BDNF was associated with an increased risk of progression to dementia in the A+ participants. Our results imply that Met-carriage on top of amyloid-beta pathology might increase rate of cognitive decline to dementia.
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Affiliation(s)
- Karlijn A van den Bosch
- Alzheimer Center Amsterdam, Department of Neurology, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, The Netherlands
| | - Inge M W Verberk
- Alzheimer Center Amsterdam, Department of Neurology, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, The Netherlands; Neurochemistry Laboratory, Department of Clinical Chemistry, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, The Netherlands.
| | - Jarith L Ebenau
- Alzheimer Center Amsterdam, Department of Neurology, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, The Netherlands
| | - Sven J van der Lee
- Alzheimer Center Amsterdam, Department of Neurology, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, The Netherlands; Department of Clinical Genetics, Amsterdam UMC, Amsterdam, The Netherlands
| | - Iris E Jansen
- Alzheimer Center Amsterdam, Department of Neurology, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, The Netherlands; Department of Complex Trait Genetics, Center for Neurogenomics and Cognitive Research, VU, Amsterdam, The Netherlands
| | - Niels D Prins
- Alzheimer Center Amsterdam, Department of Neurology, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, The Netherlands; Brain Research Center, Amsterdam, The Netherlands
| | - Philip Scheltens
- Alzheimer Center Amsterdam, Department of Neurology, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, The Netherlands
| | - Charlotte E Teunissen
- Alzheimer Center Amsterdam, Department of Neurology, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, The Netherlands; Neurochemistry Laboratory, Department of Clinical Chemistry, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, The Netherlands
| | - Wiesje M Van der Flier
- Alzheimer Center Amsterdam, Department of Neurology, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, The Netherlands; Department of Epidemiology and Data Science, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, The Netherlands
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19
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A systematic review and meta-analysis of association between brain-derived neurotrophic factor and type 2 diabetes and glycemic profile. Sci Rep 2021; 11:13773. [PMID: 34215825 PMCID: PMC8253793 DOI: 10.1038/s41598-021-93271-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 06/23/2021] [Indexed: 02/07/2023] Open
Abstract
Several epidemiologic studies have evaluated the relation between serum/plasma brain-derived neurotrophic factor (BDNF) levels and glycemic parameters, but the findings were conflicting. We performed a systematic review and meta-analysis to compare circulating BDNF levels in individuals with type 2 diabetes (T2D) or other glycemic disorders with healthy controls and to evaluate correlation between BDNF concentrations with glycemic profile. A systematic search up to July 2020 was conducted in reliable electronic databases (MEDLINE (Pubmed), EMBASE, Scopus) and Google scholar. Sixteen observational studies compared serum/plasma BDNF levels in diabetic patients (or individuals with glycemic disorders) vs. healthy controls or reported correlations between serum BDNF levels and glycemic parameters in adults were included in the review. Overall weighted mean difference (WMD) of circulating BDNF levels in 1306 patients with T2D (or other glycemic disorders) was 1.12 ng/mL lower than 1250 healthy subjects (WMD: − 1.12; 95%CI − 1.37, − 0.88, I2 = 98.7%, P < 0.001). Subgroup analysis revealed that both diabetic patients and subjects with other glycemic disorders had lower serum/plasma BDNF levels than healthy controls (WMD: − 1.74; 95%CI − 2.15, − 1.33 and WMD: − 0.49; 95%CI − 0.82, − 0.16, respectively). No significant correlation was found between BDNF levels and glycemic parameters [fasting blood glucose (FBG) (Fisher’s Z = 0.05; 95%CI − 0.21, 0.11; n = 1400), homeostatic model assessment for insulin resistance (HOMA-IR) (Fisher’s Z = 0.12; 95%CI − 0.20, 0.44; n = 732) and glycosylated hemoglobin (HbA1c) (Fisher’s Z = 0.04; 95%CI − 0.05, 0.12; n = 2222)]. We found that diabetic patients and subjects with glycemic disorders had lower circulating BDNF levels than healthy controls. However, there was no significant correlation between BDNF concentrations and glycemic parameters including FBG, HOMA-IR and HbA1c. Further prospective investigations are required to confirm these findings.
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Burtscher J, Mallet RT, Burtscher M, Millet GP. Hypoxia and brain aging: Neurodegeneration or neuroprotection? Ageing Res Rev 2021; 68:101343. [PMID: 33862277 DOI: 10.1016/j.arr.2021.101343] [Citation(s) in RCA: 100] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 04/06/2021] [Accepted: 04/09/2021] [Indexed: 12/12/2022]
Abstract
The absolute reliance of the mammalian brain on oxygen to generate ATP renders it acutely vulnerable to hypoxia, whether at high altitude or in clinical settings of anemia or pulmonary disease. Hypoxia is pivotal to the pathogeneses of myriad neurological disorders, including Alzheimer's, Parkinson's and other age-related neurodegenerative diseases. Conversely, reduced environmental oxygen, e.g. sojourns or residing at high altitudes, may impart favorable effects on aging and mortality. Moreover, controlled hypoxia exposure may represent a treatment strategy for age-related neurological disorders. This review discusses evidence of hypoxia's beneficial vs. detrimental impacts on the aging brain and the molecular mechanisms that mediate these divergent effects. It draws upon an extensive literature search on the effects of hypoxia/altitude on brain aging, and detailed analysis of all identified studies directly comparing brain responses to hypoxia in young vs. aged humans or rodents. Special attention is directed toward the risks vs. benefits of hypoxia exposure to the elderly, and potential therapeutic applications of hypoxia for neurodegenerative diseases. Finally, important questions for future research are discussed.
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Affiliation(s)
- Johannes Burtscher
- Department of Biomedical Sciences, University of Lausanne, CH-1015, Lausanne, Switzerland; Institute of Sport Sciences, University of Lausanne, CH-1015, Lausanne, Switzerland.
| | - Robert T Mallet
- Department of Physiology and Anatomy, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
| | - Martin Burtscher
- Department of Sport Science, University of Innsbruck, Innsbruck, Austria
| | - Grégoire P Millet
- Institute of Sport Sciences, University of Lausanne, CH-1015, Lausanne, Switzerland
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21
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Nedic Erjavec G, Nikolac Perkovic M, Tudor L, Uzun S, Kovacic Petrovic Z, Konjevod M, Sagud M, Kozumplik O, Svob Strac D, Peraica T, Mimica N, Havelka Mestrovic A, Zilic D, Pivac N. Moderating Effects of BDNF Genetic Variants and Smoking on Cognition in PTSD Veterans. Biomolecules 2021; 11:biom11050641. [PMID: 33926045 PMCID: PMC8146493 DOI: 10.3390/biom11050641] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 04/15/2021] [Accepted: 04/24/2021] [Indexed: 12/21/2022] Open
Abstract
Posttraumatic stress disorder (PTSD) is frequently associated with cognitive disturbances and high prevalence of smoking. This study evaluated cognition in war veterans with PTSD and control subjects, controlled for the effect of smoking and brain derived neurotrophic factor (BDNF) rs6265 and rs56164415 genotypes/alleles. Study included 643 male war veterans with combat related PTSD and 120 healthy controls. Genotyping was done by real time PCR. Cognitive disturbances were evaluated using the Positive and Negative Syndrome Scale (PANSS) cognition subscale and the Rey-Osterrieth Complex Figure (ROCF) test scores. Diagnosis (p < 0.001), BDNF rs56164415 (p = 0.011) and smoking (p = 0.028) were significant predictors of the cognitive decline in subjects with PTSD. BDNF rs56164415 T alleles were more frequently found in subjects with PTSD, smokers and non-smokers, with impaired cognition, i.e., with the higher PANSS cognition subscale scores and with the lower ROCF immediate recall test scores. Presence of one or two BDNF rs56164415 T alleles was related to cognitive decline in PTSD. The T allele carriers with PTSD had advanced cognitive deterioration in smokers and nonsmokers with PTSD, and worse short-term visual memory function. Our findings emphasize the role of the BDNF rs56164415 T allele and smoking in cognitive dysfunction in war veterans with PTSD.
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Affiliation(s)
- Gordana Nedic Erjavec
- Laboratory for Molecular Neuropsychiatry, Division of Molecular Medicine, Rudjer Boskovic Institute, 10000 Zagreb, Croatia; (G.N.E.); (M.N.P.); (L.T.); (M.K.); (D.S.S.)
| | - Matea Nikolac Perkovic
- Laboratory for Molecular Neuropsychiatry, Division of Molecular Medicine, Rudjer Boskovic Institute, 10000 Zagreb, Croatia; (G.N.E.); (M.N.P.); (L.T.); (M.K.); (D.S.S.)
| | - Lucija Tudor
- Laboratory for Molecular Neuropsychiatry, Division of Molecular Medicine, Rudjer Boskovic Institute, 10000 Zagreb, Croatia; (G.N.E.); (M.N.P.); (L.T.); (M.K.); (D.S.S.)
| | - Suzana Uzun
- Department for Biological Psychiatry and Psychogeriatrics, University Psychiatric Hospital Vrapce, 10090 Zagreb, Croatia; (S.U.); (Z.K.P.); (O.K.); (N.M.)
- School of Medicine, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
| | - Zrnka Kovacic Petrovic
- Department for Biological Psychiatry and Psychogeriatrics, University Psychiatric Hospital Vrapce, 10090 Zagreb, Croatia; (S.U.); (Z.K.P.); (O.K.); (N.M.)
- School of Medicine, The University of Zagreb, 10000 Zagreb, Croatia;
| | - Marcela Konjevod
- Laboratory for Molecular Neuropsychiatry, Division of Molecular Medicine, Rudjer Boskovic Institute, 10000 Zagreb, Croatia; (G.N.E.); (M.N.P.); (L.T.); (M.K.); (D.S.S.)
| | - Marina Sagud
- School of Medicine, The University of Zagreb, 10000 Zagreb, Croatia;
- Department of Psychiatry, University Hospital Center Zagreb, 10000 Zagreb, Croatia
| | - Oliver Kozumplik
- Department for Biological Psychiatry and Psychogeriatrics, University Psychiatric Hospital Vrapce, 10090 Zagreb, Croatia; (S.U.); (Z.K.P.); (O.K.); (N.M.)
- School of Medicine, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
| | - Dubravka Svob Strac
- Laboratory for Molecular Neuropsychiatry, Division of Molecular Medicine, Rudjer Boskovic Institute, 10000 Zagreb, Croatia; (G.N.E.); (M.N.P.); (L.T.); (M.K.); (D.S.S.)
| | - Tina Peraica
- Department of Psychiatry, University Hospital Dubrava, 10000 Zagreb, Croatia;
| | - Ninoslav Mimica
- Department for Biological Psychiatry and Psychogeriatrics, University Psychiatric Hospital Vrapce, 10090 Zagreb, Croatia; (S.U.); (Z.K.P.); (O.K.); (N.M.)
- School of Medicine, The University of Zagreb, 10000 Zagreb, Croatia;
| | | | | | - Nela Pivac
- Laboratory for Molecular Neuropsychiatry, Division of Molecular Medicine, Rudjer Boskovic Institute, 10000 Zagreb, Croatia; (G.N.E.); (M.N.P.); (L.T.); (M.K.); (D.S.S.)
- Correspondence: ; Tel.: +385-145-712-07
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Galle S, Licher S, Milders M, Deijen JB, Scherder E, Drent M, Ikram A, van Duijn CM. Plasma Brain-Derived Neurotropic Factor Levels Are Associated with Aging and Smoking But Not with Future Dementia in the Rotterdam Study. J Alzheimers Dis 2021; 80:1139-1149. [PMID: 33646145 PMCID: PMC8150496 DOI: 10.3233/jad-200371] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Background: Brain-derived neurotropic factor (BDNF) plays a vital role in neuronal survival and plasticity and facilitates long-term potentiation, essential for memory. Alterations in BDNF signaling have been associated with cognitive impairment, dementia, and Alzheimer’s disease. Although peripheral BDNF levels are reduced in dementia patients, it is unclear whether changes in BDNF levels precede or follow dementia onset. Objective: In the present study, we examined the association between BDNF plasma levels and dementia risk over a follow-up period of up to 16 years. Methods: Plasma BDNF levels were assessed in 758 participants of the Rotterdam Study. Dementia was assessed from baseline (1997–1999) to follow-up until January 2016. Associations of plasma BDNF and incident dementia were assessed with Cox proportional hazards models, adjusted for age and sex. Associations between plasma BDNF and lifestyle and metabolic factors are investigated using linear regression. Results: During a follow up of 3,286 person-years, 131 participants developed dementia, of whom 104 had Alzheimer’s disease. We did not find an association between plasma BDNF and risk of dementia (adjusted hazard ratio 0.99; 95%CI 0.84–1.16). BDNF levels were positively associated with age (B = 0.003, SD = 0.001, p = 0.002), smoking (B = 0.08, SE = 0.01, p = < 0.001), and female sex (B = 0.03, SE = 0.01, p = 0.03), but not with physical activity level (B = –0.01, SE = 0.01, p = 0.06). Conclusion: The findings suggest that peripheral BDNF levels are not associated with an increased risk of dementia.
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Affiliation(s)
- Sara Galle
- Department of Clinical, Neuro- and Developmental Psychology, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.,Department of Epidemiology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Silvan Licher
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Maarten Milders
- Department of Clinical, Neuro- and Developmental Psychology, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Jan Berend Deijen
- Department of Clinical, Neuro- and Developmental Psychology, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.,Hersencentrum Mental Health Institute, Amsterdam, The Netherlands
| | - Erik Scherder
- Department of Clinical, Neuro- and Developmental Psychology, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Madeleine Drent
- Department of Clinical, Neuro- and Developmental Psychology, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.,Department of Internal Medicine, Endocrinology Section, Amsterdam University Medical Center, Amsterdam, The Netherlands
| | - Arfan Ikram
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Cornelia M van Duijn
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, The Netherlands.,Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom.,Big Data Institute, Li Ka Shing Centre for Health Information and Discovery, Oxford, United Kingdom
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Vieira IS, Ferrugem SCR, Reyes AN, Branco JC, Mondin TC, Cardoso TDA, Kapczinski F, Souza LDDM, Jansen K, da Silva RA, Pedrotti Moreira F. Effects of depression and excess body weight on cognition and functioning in young adults: A population-based study. J Affect Disord 2021; 282:401-406. [PMID: 33421869 DOI: 10.1016/j.jad.2020.12.083] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 10/30/2020] [Accepted: 12/22/2020] [Indexed: 11/29/2022]
Abstract
OBJECTIVES The purpose of this study is to assess the independent effects of depression and excess body weight (EBW) on cognition and functioning in a community sample of young adults. METHODS This was a cross-sectional of 943 young adults. The diagnosis of a current depressive episode was performed using the Mini International Neuropsychiatric Interview (MINI). Cognition and functioning were assessed using the Montreal Cognitive Assessment (MoCA) and the Functional Assessment Short Test (FAST), respectively. The EBW was defined as BMI ≥ 25.0 kg/m2. The independent main effects of depression and EBW, as well as the analysis interaction were performed using two-way analysis of covariance (ANCOVA). RESULTS The total sample comprised 943 adults, with 75 (8.0%) individuals diagnosed with a current depressive episode and 493 (52,6%) with EBW. Of the 75 subjects with depression, 40 were identified with EBW comorbidity. Subjects with depression and EBW comorbidity reported greater cognitive and functional impairment, as compared to individuals with depression without EBW. There was a significant interaction between depression and EBW on MoCA total (p<0.001) as well as FAST total (p=0.010), work (p=0.002), cognition (p=0.023), finances (p=0.032) and relationships domains (p=0.008). CONCLUSIONS The adverse effects of depression and EBW are independent and cumulative with respect to cognition and functioning of individuals. The understanding of the complex interactions between cognition, functioning, EBW and depression are important for development of preventive and therapeutic strategies.
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Affiliation(s)
- Igor Soares Vieira
- Translational Science on Brain Disorders, Programa de Pós-Graduação em Saúde e Comportamento, Universidade Católica de Pelotas, RS, Brazil
| | | | - Amanda Neumann Reyes
- Translational Science on Brain Disorders, Programa de Pós-Graduação em Saúde e Comportamento, Universidade Católica de Pelotas, RS, Brazil
| | - Jerônimo Costa Branco
- Mestrado em Ciências da Saúde e da Vida, Universidade Franciscana, Santa Maria, RS, Brazil
| | - Thaíse Campos Mondin
- Pró-Reitoria de Assuntos Estudantis (PRAE), Universidade Federal de Pelotas, RS, Brazil
| | - Taiane de Azevedo Cardoso
- Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, ON, Canada; Instituto Nacional de Ciência e Tecnologia Translacional em Medicina (INCT-TM), Porto Alegre, Brazil
| | - Flávio Kapczinski
- Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, ON, Canada; Instituto Nacional de Ciência e Tecnologia Translacional em Medicina (INCT-TM), Porto Alegre, Brazil
| | - Luciano Dias de Mattos Souza
- Translational Science on Brain Disorders, Programa de Pós-Graduação em Saúde e Comportamento, Universidade Católica de Pelotas, RS, Brazil; Instituto Nacional de Ciência e Tecnologia Translacional em Medicina (INCT-TM), Porto Alegre, Brazil
| | - Karen Jansen
- Translational Science on Brain Disorders, Programa de Pós-Graduação em Saúde e Comportamento, Universidade Católica de Pelotas, RS, Brazil; Instituto Nacional de Ciência e Tecnologia Translacional em Medicina (INCT-TM), Porto Alegre, Brazil
| | - Ricardo Azevedo da Silva
- Translational Science on Brain Disorders, Programa de Pós-Graduação em Saúde e Comportamento, Universidade Católica de Pelotas, RS, Brazil; Instituto Nacional de Ciência e Tecnologia Translacional em Medicina (INCT-TM), Porto Alegre, Brazil
| | - Fernanda Pedrotti Moreira
- Translational Science on Brain Disorders, Programa de Pós-Graduação em Saúde e Comportamento, Universidade Católica de Pelotas, RS, Brazil; Instituto Nacional de Ciência e Tecnologia Translacional em Medicina (INCT-TM), Porto Alegre, Brazil.
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Fraga I, Weber C, Galiano WB, Iraci L, Wohlgemuth M, Morales G, Cercato C, Rodriguez J, Pochmann D, Dani C, Menz P, Bosco AD, Elsner VR. Effects of a multimodal exercise protocol on functional outcomes, epigenetic modulation and brain-derived neurotrophic factor levels in institutionalized older adults: a quasi-experimental pilot study. Neural Regen Res 2021; 16:2479-2485. [PMID: 33907037 PMCID: PMC8374571 DOI: 10.4103/1673-5374.313067] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Epigenetic changes have been shown to be associated with both aging process and aging-related diseases. There is evidence regarding the benefits of physical activity on the functionality, cognition, and quality of life of institutionalized older adults, however, the molecular mechanisms involved are not elucidated. The purpose of this pilot study was to investigate the effects of a multimodal exercise intervention on functional outcomes, cognitive performance, quality of life (QOL), epigenetic markers and brain-derived neurotrophic factor (BDNF) levels among institutionalized older adult individuals. Participants (n = 8) without dementia who were aged 73.38 ± 11.28 years and predominantly female (87.5%) were included in this quasi-experimental pilot study. A multimodal exercise protocol (cardiovascular capacity, strength, balance/agility and flexibility, perception and cognition) consisted of twice weekly sessions (60 minutes each) over 8 weeks. Balance (Berg Scale), mobility (Timed Up and Go test), functional capacity (Six-Minute Walk test), cognitive function (Mini-Mental State Examination) and QOL (the World Health Organization Quality of Life-BREF Scale questionnaire) were evaluated before and after the intervention. Blood sample (15 mL) was also collected before and after intervention for analysis of biomarkers global histone H3 acetylation and brain-derived neurotrophic factor levels. Significant improvements were observed in cognitive function, balance, mobility, functional capacity and QOL after the intervention. In addition, a tendency toward an increase in global histone H3 acetylation levels was observed, while brain-derived neurotrophic factor level remained unchanged. This study provided evidence that an 8-week multimodal exercise protocol has a significant effect on ameliorating functional outcomes and QOL in institutionalized older adult individuals. In addition, it was also able to promote cognitive improvement, which seems to be partially related to histone hyperacetylation status. The Ethics Research Committee of Centro Universitário Metodista-IPA, Brazil approved the current study on June 6, 2019 (approval No. 3.376.078).
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Affiliation(s)
- Iasmin Fraga
- Programa de Pós-Graduação em Ciências Biológicas: Fisiologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - Camila Weber
- Curso de Fisioterapia do Centro Universitário Metodista-IPA, Porto Alegre, RS, Brasil
| | - Wériton Baldo Galiano
- Curso de Fisioterapia do Centro Universitário Metodista-IPA, Porto Alegre, RS, Brasil
| | - Lucio Iraci
- Curso de Fisioterapia do Centro Universitário Metodista-IPA, Porto Alegre, RS, Brasil
| | - Mariana Wohlgemuth
- Curso de Fisioterapia do Centro Universitário Metodista-IPA, Porto Alegre, RS, Brasil
| | - Gabriela Morales
- Curso de Fisioterapia do Centro Universitário Metodista-IPA, Porto Alegre, RS, Brasil
| | - Camila Cercato
- Curso de Fisioterapia do Centro Universitário Metodista-IPA, Porto Alegre, RS, Brasil
| | - Juliana Rodriguez
- Curso de Fisioterapia do Centro Universitário Metodista-IPA, Porto Alegre, RS, Brasil
| | - Daniela Pochmann
- Programa de Pós-Graduação em Biociências e Reabilitação, Centro Universitário Metodista-IPA, Porto Alegre, RS, Brasil
| | - Caroline Dani
- Programa de Pós-Graduação em Biociências e Reabilitação, Centro Universitário Metodista-IPA, Porto Alegre, RS, Brasil
| | - Pérsia Menz
- Physiotherapist, working in Long-Term Institutions, Porto Alegre, RS, Brasil
| | - Adriane Dal Bosco
- Curso de Fisioterapia do Centro Universitário Metodista-IPA, Porto Alegre, RS, Brasil
| | - Viviane Rostirola Elsner
- Programa de Pós-Graduação em Ciências Biológicas: Fisiologia, Universidade Federal do Rio Grande do Sul; Curso de Fisioterapia do Centro Universitário Metodista-IPA; Programa de Pós-Graduação em Biociências e Reabilitação, Centro Universitário Metodista-IPA, Porto Alegre, RS, Brasil
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Sharif M, Noroozian M, Hashemian F. Do serum GDNF levels correlate with severity of Alzheimer's disease? Neurol Sci 2020; 42:2865-2872. [PMID: 33215334 DOI: 10.1007/s10072-020-04909-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 11/13/2020] [Indexed: 12/19/2022]
Abstract
INTRODUCTION A growing body of evidence that glial cell line-derived neurotrophic factor (GDNF) levels are probably involved in pathogenesis and disease course of Alzheimer's disease (AD) suggested that its blood levels could potentially be used as a biomarker of AD. The aim of this study was to compare serum GDNF levels in patients with AD and age-matched controls. METHODS Serum concentrations of GDNF were compared in 25 AD patients and 25 healthy volunteers using a double-antibody sandwich enzyme-linked immunosorbent assay (ELISA). Severity of the disease in AD patients was assessed using Functional Assessment Staging (FAST). Cognitive assessment of the patients was done using the Mini-Mental State Examination (MMSE). RESULTS Mean GDNF levels were found to be 2.45 ± 0.93 ng/ml in AD patients and 4.61 ± 3.39 ng/ml in age-matched controls. There was a statistically significant difference in GDNF serum levels in patients with AD compared to age-matched controls (p = 0.001). Moreover, GDNF serum levels were significantly correlated with disease severity (p < 0.001) and cognitive impairment (p < 0.001). CONCLUSION This study showed that serum levels of GDNF are significantly decreased in AD patients in comparison with age-matched controls, thus suggesting a potential role of GDNF as a disease biomarker. However, a comprehensive study of changes in serum levels of multiple neurotrophic factors reflective of different neurobiological pathways in large-scale population studies is recommended.
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Affiliation(s)
- Maryam Sharif
- Department of Clinical Pharmacy, Faculty of Pharmacy, Tehran Medical Sciences, Islamic Azad University, 99 Yakhchal Street, Shariati Avenue, Tehran, 1941933111, Iran
| | - Maryam Noroozian
- Memory and Behavioral Neurology Division, Department of Psychiatry, Roozbeh Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Farshad Hashemian
- Department of Clinical Pharmacy, Faculty of Pharmacy, Tehran Medical Sciences, Islamic Azad University, 99 Yakhchal Street, Shariati Avenue, Tehran, 1941933111, Iran.
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Rehman NU, Esmaeilpour K, Joushi S, Abbas M, Al-Rashida M, Rauf K, Masoumi-Ardakani Y. Effect of 4-Fluoro-N-(4-sulfamoylbenzyl) Benzene Sulfonamide on cognitive deficits and hippocampal plasticity during nicotine withdrawal in rats. Biomed Pharmacother 2020; 131:110783. [PMID: 33152941 DOI: 10.1016/j.biopha.2020.110783] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 09/03/2020] [Accepted: 09/17/2020] [Indexed: 12/11/2022] Open
Abstract
Withdrawal from chronic nicotine has damaging effects on a variety of learning and memory tasks. Various Sulfonamides that act as carbonic anhydrase inhibitors have documented role in modulation of various cognitive, learning, and memory processing. We investigated the effects of 4-Fluoro-N-(4-sulfamoylbenzyl) Benzene Sulfonamide (4-FBS) on nicotine withdrawal impairments in rats using Morris water maze (MWM), Novel object recognition, Passive avoidance, and open field tasks. Also, Brain-derived neurotrophic factor (BDNF) profiling and in vivo field potential recording were assessed. Rats were exposed to saline or chronic nicotine 3.8 mg/kg subcutaneously for 14 days in four divided doses, spontaneous nicotine withdrawal was induced by quitting nicotine for 72 h (hrs). Animals received 4-FBS at 20, 40, and 60 mg/kg after 72 h of withdrawal in various behavioral and electrophysiological paradigms. Nicotine withdrawal causes a deficit in learning and long-term memory in the MWM task. No significant difference was found in novel object recognition tasks among all groups while in passive avoidance task nicotine withdrawal resulted in a deficit of hippocampus-dependent fear learning. Anxiety like behavior was observed during nicotine withdrawal. Plasma BDNF level was reduced during nicotine withdrawal as compared to the saline group reflecting mild cognitive impairment, stress, and depression. Withdrawal from chronic nicotine altered hippocampal plasticity, caused suppression of long-term potentiation (LTP) in the CA1 area of the hippocampus. Our results showed that 4-FBS at 40 and 60 mg/kg significantly prevented nicotine withdrawal-induced cognitive deficits in behavioral as well as electrophysiological studies. 4-FBS at 60 mg/kg upsurge nicotine withdrawal-induced decrease in plasma BDNF. We conclude that 4-FBS at 40 and 60 mg /kg effectively prevented chronic nicotine withdrawal-induced impairment in long term potentiation and cognitive performance.
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Affiliation(s)
- Naeem Ur Rehman
- Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran; Department of Pharmacy, COMSATS University Islamabad, Abbottabad Campus, Pakistan
| | - Khadijeh Esmaeilpour
- Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran.
| | - Sara Joushi
- Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Muzaffar Abbas
- Department of Pharmacy, Capital University of Science and Technology (CUST), Islamabad, Pakistan
| | - Mariya Al-Rashida
- Department of Chemistry, Forman Christian College (A Chartered University), Ferozepur Road, Lahore, 54600, Pakistan
| | - Khalid Rauf
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad Campus, Pakistan.
| | - Yaser Masoumi-Ardakani
- Physiology Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran
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Sex difference in cognitive impairment in drug-free schizophrenia: Association with miR-195 levels. Psychoneuroendocrinology 2020; 119:104748. [PMID: 32559610 DOI: 10.1016/j.psyneuen.2020.104748] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 05/27/2020] [Accepted: 05/30/2020] [Indexed: 01/07/2023]
Abstract
OBJECTIVE There is evidence that microRNA-195 (miR-195) is associated with schizophrenia (SZ) and cognition, but the relationship between miR-195 and cognitive impairment in SZ is still unknown. Sex differences in both microRNA (miRNA) expression and cognition were found in SZ. We aim to investigate whether sex moderates the relationship between miR-195 levels and cognition in SZ. METHODS We recruited 121 drug-free SZ patients and 129 healthy controls. miR-195 expression levels in peripheral blood mononuclear cells (PBMCs) were measured using qRT-PCR. The Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) was performed to assess cognitive function. MANCOVA, ANCOVA, correlation analysis and hierarchical linear regression analysis were used to test the effect of sex on the aforementioned variables. RESULTS All RBANS scores significantly decreased in patients compared to healthy controls (all p < 0.001); ANCOVA analysis demonstrated female SZ patients had lower delayed memory score (F = 15.36, p < 0.001) and total score (F = 5.26, p = 0.024) than male patients. There was no diagnosis, sex or sex by diagnosis interaction effect on miR-195 levels (all p > 0.05). Interestingly, correlation analysis showed significant negative association between miR-195 and attention score (r = -0.389, p = 0.019), delayed memory score (r= -0.351, p = 0.036), and total score (r = -0.386, p = 0.020) only in female patients. Hierarchical regression analysis showed sex by miR-195 interaction was a significant predictor of the RBANS total score (ΔR2 = 0.042, F(1, 67) = 4.71, p = 0.033). CONCLUSION Our data indicate that miR-195 is associated with cognitive impairment in female SZ patients, and it may be involved in the underlying mechanism of sex differences in cognitive impairment in SZ.
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McPhee GM, Downey LA, Stough C. Neurotrophins as a reliable biomarker for brain function, structure and cognition: A systematic review and meta-analysis. Neurobiol Learn Mem 2020; 175:107298. [PMID: 32822863 DOI: 10.1016/j.nlm.2020.107298] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 08/02/2020] [Accepted: 08/14/2020] [Indexed: 01/04/2023]
Abstract
Neurotrophins are signalling molecules involved in the formation and maintenance of synapses in the brain. They can cross the blood-brain barrier and be detected in peripheral blood, suggesting they may be a potential biomarker for brain health and function. In this review, the available literature was systematically searched for studies comparing peripheral neurotrophins levels with MRI and cognitive measures in healthy adults. Twenty-four studies were identified, six of which included a neuroimaging outcome. Fifteen studies measuring cognition were eligible for meta-analysis. The majority of studies measured levels of brain-derived neurotrophic factor (BDNF), with few assessing other neurotrophins. Results revealed BDNF is related to some neuroimaging outcomes, with some studies suggesting older age may be an important factor. A higher proportion of studies who had older samples observed significant effects between cognition and neurotrophin levels. When cognitive studies were pooled together in a meta-analysis, there was a weak non-significant effect between BDNF and cognitive outcomes. There was also a high level of heterogeneity between cognitive studies. Results indicated that gender was a notable source of the heterogeneity, but additional studies employing relevant covariates are necessary to better characterise the inter-relationship between circulating neurotrophins and cognition.
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Affiliation(s)
- Grace M McPhee
- Centre for Human Psychopharmacology, Swinburne University of Technology, Melbourne, Australia
| | - Luke A Downey
- Centre for Human Psychopharmacology, Swinburne University of Technology, Melbourne, Australia; Institute for Breathing and Sleep, Austin Health, Melbourne, Australia
| | - Con Stough
- Centre for Human Psychopharmacology, Swinburne University of Technology, Melbourne, Australia
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Ahles S, Stevens YR, Joris PJ, Vauzour D, Adam J, de Groot E, Plat J. The Effect of Long-Term Aronia melanocarpa Extract Supplementation on Cognitive Performance, Mood, and Vascular Function: A Randomized Controlled Trial in Healthy, Middle-Aged Individuals. Nutrients 2020; 12:nu12082475. [PMID: 32824483 PMCID: PMC7468716 DOI: 10.3390/nu12082475] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 07/27/2020] [Accepted: 08/14/2020] [Indexed: 12/13/2022] Open
Abstract
Cognitive decline is associated with lifestyle-related factors such as overweight, blood pressure, and dietary composition. Studies have reported beneficial effects of dietary anthocyanins on cognition in older adults and children. However, the effect of anthocyanin-rich Aronia melanocarpa extract (AME) on cognition is unknown. Therefore, this study aimed to determine the effect of long-term supplementation with AME on cognitive performance, mood, and vascular function in healthy, middle-aged, overweight adults. In a randomized double-blind placebo-controlled parallel study, 101 participants either consumed 90 mg AME, 150 mg AME, or placebo for 24 weeks. The grooved pegboard test, number cross-out test, and Stroop test were performed as measures for psychomotor speed, attention, and cognitive flexibility. Mood was evaluated with a visual analogue scale, serum brain-derived neurotrophic factor (BDNF) was determined, and vascular function was assessed by carotid ultrasounds and blood pressure measurements. AME improved psychomotor speed compared to placebo (90 mg AME: change = -3.37; p = 0.009). Furthermore, 150 mg AME decreased brachial diastolic blood pressure compared to 90 mg AME (change = 2.44; p = 0.011), but not compared to placebo. Attention, cognitive flexibility, BDNF, and other vascular parameters were not affected. In conclusion, AME supplementation showed an indication of beneficial effects on cognitive performance and blood pressure in individuals at risk of cognitive decline.
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Affiliation(s)
- Sanne Ahles
- Department of Nutrition and Movement Sciences, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, 6200 MD Maastricht, The Netherlands; (S.A.); (P.J.J.); (J.A.)
- BioActor BV, Gaetano Martinolaan 85, 6229 GS Maastricht, The Netherlands;
| | - Yala R. Stevens
- BioActor BV, Gaetano Martinolaan 85, 6229 GS Maastricht, The Netherlands;
- Department of Internal Medicine, Division of Gastroenterology-Hepatology, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, 6200 MD Maastricht, The Netherlands
| | - Peter J. Joris
- Department of Nutrition and Movement Sciences, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, 6200 MD Maastricht, The Netherlands; (S.A.); (P.J.J.); (J.A.)
| | - David Vauzour
- Biomedical Research Centre, Norwich Medical School, Faculty of Medicine and Health Sciences, University of East Anglia, Norwich NR4 7TJ, UK;
| | - Jos Adam
- Department of Nutrition and Movement Sciences, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, 6200 MD Maastricht, The Netherlands; (S.A.); (P.J.J.); (J.A.)
| | - Eric de Groot
- Imagelabonline & Cardiovascular, 4117 GV Erichem, The Netherlands;
- Department of Gastroenterology, Amsterdam UMC—Location Academic Medical Centre, 1105 AZ Amsterdam, The Netherlands
| | - Jogchum Plat
- Department of Nutrition and Movement Sciences, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, 6200 MD Maastricht, The Netherlands; (S.A.); (P.J.J.); (J.A.)
- Correspondence:
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Associations of plasma brain-derived neurotrophic factor (BDNF) and Val66Met polymorphism (rs6265) with long-term cancer-related cognitive impairment in survivors of breast cancer. Breast Cancer Res Treat 2020; 183:683-696. [DOI: 10.1007/s10549-020-05807-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 07/11/2020] [Indexed: 12/26/2022]
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The relationship between DNA methylation in neurotrophic genes and age as evidenced from three independent cohorts: differences by delirium status. Neurobiol Aging 2020; 94:227-235. [PMID: 32650186 DOI: 10.1016/j.neurobiolaging.2020.06.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 04/07/2020] [Accepted: 06/06/2020] [Indexed: 12/19/2022]
Abstract
We previously reported the association between DNA methylation (DNAm) of pro-inflammatory cytokine genes and age. In addition, neurotrophic factors are known to be associated with age and neurocognitive disorders. Therefore, we hypothesized that DNAm of neurotrophic genes change with age, especially in delirium patients. DNAm was analyzed using the Illumina HumanMethylation450 or HumanMethylationEPIC BeadChip Kit in 3 independent cohorts: blood from 383 Grady Trauma Project subjects, brain from 21 neurosurgery patients, and blood from 87 inpatients with and without delirium. Both blood and brain samples showed that most of the DNAm of neurotrophic genes were positively correlated with age. Furthermore, DNAm of neurotrophic genes was more positively correlated with age in delirium cases than in non-delirium controls. These findings support our hypothesis that the neurotrophic genes may be epigenetically modulated with age, and this process may be contributing to the pathophysiology of delirium.
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Association of Brain-Derived Neurotrophic Factor With Cognitive Function: An Investigation of Sex Differences in Patients With Type 2 Diabetes. Psychosom Med 2020; 81:488-494. [PMID: 31083054 DOI: 10.1097/psy.0000000000000709] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
OBJECTIVE Although a reduction in brain-derived neurotrophic factor (BDNF) has been implicated as a cause of cognitive impairment in type 2 diabetes mellitus (T2DM), the role of sex in moderating this effect has not been explored. METHODS We compared the difference in serum BDNF and performance on the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) between 96 men and 134 women with T2DM. We compared this with the difference in serum BDNF and performance in the control group (104 men, 144 women). RESULTS Patients with T2DM performed worse on most RBANS indices (η = 0.372, all p < .05); within T2DM patients, men performed worse than women on the delayed memory score (74.1 (12.1) versus 79.9 (11.5), p = .002) and on the total score (71.4 (11.5) versus 76.5 (10.8), p = .025). Serum BDNF was lower in patients with T2DM versus controls (7.5 (2.7) ng/ml versus 11.5 (2.7) ng/ml, p < .001), and in men compared with women (6.9 (2.4) versus 7.9 (2.8), p = .024). Serum BDNF levels positively correlated with delayed memory score in patients with T2DM (β = 0.19, p = .007). However, this association was only observed in women, not in men (pinteraction = 0.04). Among healthy controls, no sex differences were noted in either RBANS or BDNF levels (η = 0.04, Cohen's d < 0.163, all p > .05). CONCLUSIONS Our results show sex differences in poorer cognitive performance, lower BDNF concentration, and their relationship in T2DM patients, suggesting that female sex may be a protective factor for cognitive decline in T2DM patients. However, the findings should be regarded as preliminary because of the cross-sectional design and chronicity of the diabetes.
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Alolaby RR, Jiraanont P, Durbin-Johnson B, Jasoliya M, Tang HT, Hagerman R, Tassone F. Molecular Biomarkers Predictive of Sertraline Treatment Response in Young Children With Autism Spectrum Disorder. Front Genet 2020; 11:308. [PMID: 32346385 PMCID: PMC7174723 DOI: 10.3389/fgene.2020.00308] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 03/16/2020] [Indexed: 11/29/2022] Open
Abstract
Sertraline is one among several selective serotonin reuptake inhibitors (SSRIs) that exhibited improvement of language development in Autism Spectrum Disorder (ASD); however, the molecular mechanism has not been elucidated. A double blind, randomized, 6-month, placebo-controlled, clinical trial of low-dose sertraline in children ages (3–6 years) with ASD was conducted at the UC Davis MIND Institute. It aimed at evaluating the efficacy and benefit with respect to early expressive language development and global clinical improvement. This study aimed to identify molecular biomarkers that might be key players in the serotonin pathway and might be predictive of a clinical response to sertraline. Fifty eight subjects with the diagnosis of ASD were randomized to sertraline or placebo. Eight subjects from the sertraline arm and five from the placebo arm discontinued from the study. Furthermore, four subjects did not have a successful blood draw. Hence, genotypes for 41 subjects (20 on placebo and 21 on sertraline) were determined for several genes involved in the serotonin pathway including the serotonin transporter-linked polymorphic region (5-HTTLPR), the tryptophan hydroxylase 2 (TPH2), and the Brain-Derived Neurotrophic Factor (BDNF). In addition, plasma levels of BDNF, Matrix metallopeptidase 9 (MMP-9) and a selected panel of cytokines were determined at baseline and post-treatment. Intent-to-treat analysis revealed several primary significant correlations between molecular changes and the Mullen Scales of Early Learning (MSEL) and Clinical Global Impression Scale – Improvement (CGI-I) of treatment and control groups but they were not significant after adjustment for multiple testing. Thus, sertraline showed no benefit for treatment of young children with ASD in language development or changes in molecular markers in this study. These results indicate that sertraline may not be beneficial for the treatment of children with ASD; however, further investigation of larger groups as well as longer term follow-up studies are warranted.
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Affiliation(s)
- Reem Rafik Alolaby
- College of Health Sciences, California Northstate University, Rancho Cordova, CA, United States
| | - Poonnada Jiraanont
- Faculty of Medicine, King Mongkut's Institute of Technology Ladkrabang, Bangkok, Thailand
| | - Blythe Durbin-Johnson
- Division of Biostatistics, School of Medicine, University of California, Davis, Davis, CA, United States
| | - Mittal Jasoliya
- Department of Biochemistry and Molecular Medicine, School of Medicine, University of California, Davis, Davis, CA, United States
| | - Hiu-Tung Tang
- Department of Biochemistry and Molecular Medicine, School of Medicine, University of California, Davis, Davis, CA, United States
| | - Randi Hagerman
- MIND Institute, University of California Davis Medical Center, Davis, Davis, CA, United States.,Department of Pediatrics, School of Medicine, University of California, Davis, Davis, CA, United States
| | - Flora Tassone
- Department of Biochemistry and Molecular Medicine, School of Medicine, University of California, Davis, Davis, CA, United States.,MIND Institute, University of California Davis Medical Center, Davis, Davis, CA, United States
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Kujawski S, Słomko J, Morten KJ, Murovska M, Buszko K, Newton JL, Zalewski P. Autonomic and Cognitive Function Response to Normobaric Hyperoxia Exposure in Healthy Subjects. Preliminary Study. MEDICINA (KAUNAS, LITHUANIA) 2020; 56:E172. [PMID: 32290164 PMCID: PMC7230641 DOI: 10.3390/medicina56040172] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 03/18/2020] [Accepted: 04/08/2020] [Indexed: 12/26/2022]
Abstract
Background and objective: This is the first study to investigate the effect of high-flow oxygen therapy, using a normobaric chamber on cognitive, biochemical (oxidative stress parameters and the level of neurotrophins), cardiovascular and autonomic functioning. Materials and methods: 17 healthy volunteers, eight males and nine females, with a mean age of 37.5 years, were examined. The experimental study involved ten two-hour exposures in a normobaric chamber with a total pressure of 1500 hPa (32–40 kPa partial pressure of oxygen, 0.7–2 kPa of carbon dioxide and 0.4–0.5 kPa of hydrogen). Cognitive function was assessed by using Trail Making Test parts A, B and difference in results of these tests (TMT A, TMT B and TMT B-A); California Verbal Learning Test (CVLT); Digit symbol substitution test (DSST); and Digit Span (DS). Fatigue (Fatigue Severity Scale (FSS)), cardiovascular, autonomic and baroreceptor functioning (Task Force Monitor) and biochemical parameters were measured before and after intervention. Results: After 10 sessions in the normobaric chamber, significant decreases in weight, caused mainly by body fat % decrease (24.86 vs. 23.93%, p = 0.04 were observed. TMT part A and B results improved (p = 0.0007 and p = 0.001, respectively). In contrast, there was no statistically significant influence on TMT B-A. Moreover, decrease in the number of symbols left after a one-minute test in DSST was noted (p = 0.0001). The mean number of words correctly recalled in the CVLT Long Delay Free Recall test improved (p = 0.002), and a reduction in fatigue was observed (p = 0.001). Biochemical tests showed a reduction in levels of malondialdehyde (p < 0.001), with increased levels of Cu Zn superoxide dismutase (p < 0.001), Neurotrophin 4 (p = 0.0001) and brain-derived neurotrophic factor (p = 0.001). A significant increase in nitric oxide synthase 2 (Z = 2.29, p = 0.02) and Club cell secretory protein (p = 0.015) was also noted. Baroreceptor function was significantly improved after normobaric exposures (p = 0.003). Significant effect of normobaric exposures and BDNF in CVLT Long Delay Free Recall was noted. Conclusions: This study demonstrates that 10 exposures in a normobaric chamber have a positive impact on visual information and set-shifting processing speed and increase auditory-verbal short-term memory, neurotrophic levels and baroreceptor function. A response of the respiratory tract to oxidative stress was also noted. There is a need to rigorously examine the safety of normobaric therapy. Further studies should be carried out with physician examination, both pre and post treatment.
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Affiliation(s)
- Sławomir Kujawski
- Department of Hygiene, Epidemiology, Ergonomics and Postgraduate Training, Division of Ergonomics and Exercise Physiology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, 85-094 Bydgoszcz, Poland; (J.S.); (P.Z.)
| | - Joanna Słomko
- Department of Hygiene, Epidemiology, Ergonomics and Postgraduate Training, Division of Ergonomics and Exercise Physiology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, 85-094 Bydgoszcz, Poland; (J.S.); (P.Z.)
| | - Karl J. Morten
- Nuffield Department of Women’s and Reproductive Health, University of Oxford, Oxford OX3 9DU, UK;
| | - Modra Murovska
- Institute of Microbiology and Virology, Riga Stradiņš University, LV-1067 Riga, Latvia;
| | - Katarzyna Buszko
- Department of Theoretical Foundations of Bio-Medical Science and Medical Informatics, Collegium Medicum, Nicolaus Copernicus University, 85-067 Bydgoszcz, Poland;
| | - Julia L. Newton
- Institute of Cellular Medicine, The Medical School, Newcastle University, Framlington Place, Newcastle-upon-Tyne NE2 4HH, UK;
| | - Paweł Zalewski
- Department of Hygiene, Epidemiology, Ergonomics and Postgraduate Training, Division of Ergonomics and Exercise Physiology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, 85-094 Bydgoszcz, Poland; (J.S.); (P.Z.)
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Modification of Serum Brain-Derived Neurotrophic Factor Levels Following Anti-HCV Therapy with Direct Antiviral Agents: A New Marker of Neurocognitive Disorders. HEPATITIS MONTHLY 2020. [DOI: 10.5812/hepatmon.95101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
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Konishi K, Cherkerzian S, Aroner S, Jacobs EG, Rentz DM, Remington A, Aizley H, Hornig M, Klibanski A, Goldstein JM. Impact of BDNF and sex on maintaining intact memory function in early midlife. Neurobiol Aging 2019; 88:137-149. [PMID: 31948671 DOI: 10.1016/j.neurobiolaging.2019.12.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 10/30/2019] [Accepted: 12/14/2019] [Indexed: 01/06/2023]
Abstract
Sex steroid hormones and neurotrophic factors, such as brain-derived neurotrophic factor (BDNF), play a significant neuroprotective role in memory circuitry aging. Here, we present findings characterizing the neuroprotective effects of BDNF on memory performance, as a function of sex and reproductive status in women. Participants (N = 191; mean age = 50.03 ± 2.10) underwent clinical and cognitive testing, fMRI scanning, and hormonal assessments of menopausal staging. Memory performance was assessed with the 6-Trial Selective Reminding Test and the Face-Name Associative Memory Exam. Participants also performed a working memory (WM) N-back task during fMRI scanning. Results revealed significant interactions between menopausal status and BDNF levels. Only in postmenopausal women, lower plasma BDNF levels were associated with significantly worse memory performance and altered function in the WM circuitry. BDNF had no significant impact on memory performance or WM function in pre/perimenopausal women or men. These results suggest that in postmenopausal women, BDNF is associated with memory performance and memory circuitry function, thus providing evidence of potential sex-dependent factors of risk and resilience for early intervention.
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Affiliation(s)
- Kyoko Konishi
- Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Sara Cherkerzian
- Department of Pediatric Newborn Medicine, Brigham and Women's Hospital, Boston, MA, USA
| | - Sarah Aroner
- Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Emily G Jacobs
- Department of Psychological and Brain Sciences, University of California, Santa Barbara, CA, USA
| | - Dorene M Rentz
- Department of Neurology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA; Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Anne Remington
- Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Harlyn Aizley
- Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Mady Hornig
- Department of Epidemiology, Columbia University Mailman School of Public Health, New York, NY, USA
| | - Anne Klibanski
- Neuroendocrine Unit, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Jill M Goldstein
- Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA; Department of Obstetrics and Gynecology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA; Division of Women's Health, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA.
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Máderová D, Krumpolec P, Slobodová L, Schön M, Tirpáková V, Kovaničová Z, Klepochová R, Vajda M, Šutovský S, Cvečka J, Valkovič L, Turčáni P, Krššák M, Sedliak M, Tsai CL, Ukropcová B, Ukropec J. Acute and regular exercise distinctly modulate serum, plasma and skeletal muscle BDNF in the elderly. Neuropeptides 2019; 78:101961. [PMID: 31506171 DOI: 10.1016/j.npep.2019.101961] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 08/26/2019] [Accepted: 08/27/2019] [Indexed: 12/14/2022]
Abstract
Brain-derived neurotrophic factor (BDNF) participates in orchestrating the adaptive response to exercise. However, the importance of transient changes in circulating BDNF for eliciting whole-body and skeletal muscle exercise benefits in humans remains relatively unexplored. Here, we investigated effects of acute aerobic exercise and 3-month aerobic-strength training on serum, plasma and skeletal muscle BDNF in twenty-two sedentary older individuals (69.0 ± 8.0 yrs., 9 M/13F). BDNF response to acute exercise was additionally evaluated in young trained individuals (25.1 ± 2.1 yrs., 3 M/5F). Acute aerobic exercise transiently increased serum BDNF in sedentary (16%, p = .007) but not in trained elderly or young individuals. Resting serum or plasma BDNF was not regulated by exercise training in the elderly. However, subtle training-related changes of serum BDNF positively correlated with improvements in walking speed (R = 0.59, p = .005), muscle mass (R = 0.43, p = .04) and cognitive performance (R = 0.41, p = .05) and negatively with changes in body fat (R = -0.43, p = .04) and triglyceridemia (R = -0.53, p = .01). Individuals who increased muscle BDNF protein in response to 3-month training (responders) displayed stronger acute exercise-induced increase in serum BDNF than non-responders (p = .006). In addition, muscle BDNF protein content positively correlated with type II-to-type I muscle fiber ratio (R = 0.587, p = .008) and with the rate of post-exercise muscle ATP re-synthesis (R = 0.703, p = .005). Contrary to serum, acute aerobic exercise resulted in a decline of plasma BDNF 1 h post-exercise in both elderly-trained (-34%, p = .002) and young-trained individuals (-48%, p = .034). Acute circulating BDNF regulation by exercise was dependent on the level of physical fitness and correlated with training-induced improvements in metabolic and cognitive functions. Our observations provide an indirect evidence that distinct exercise-induced changes in serum and plasma BDNF as well as training-related increase in muscle BDNF protein, paralleled by improvements in muscle and whole-body clinical phenotypes, are involved in the coordinated adaptive response to exercise in humans.
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Affiliation(s)
- Denisa Máderová
- Institute of Experimental Endocrinology, Biomedical Research Center, University Science Park for Biomedicine, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Patrik Krumpolec
- Institute of Experimental Endocrinology, Biomedical Research Center, University Science Park for Biomedicine, Slovak Academy of Sciences, Bratislava, Slovakia; Division of Endocrinology and Metabolism, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
| | - Lucia Slobodová
- Institute of Experimental Endocrinology, Biomedical Research Center, University Science Park for Biomedicine, Slovak Academy of Sciences, Bratislava, Slovakia; Institute of Pathophysiology, Faculty of Medicine, Comenius University, Bratislava, Slovakia
| | - Martin Schön
- Institute of Experimental Endocrinology, Biomedical Research Center, University Science Park for Biomedicine, Slovak Academy of Sciences, Bratislava, Slovakia; Institute of Pathophysiology, Faculty of Medicine, Comenius University, Bratislava, Slovakia
| | - Veronika Tirpáková
- Institute of Sports Medicine, Faculty of Medicine, Slovak Medical University, Bratislava, Slovakia
| | - Zuzana Kovaničová
- Institute of Pathophysiology, Faculty of Medicine, Comenius University, Bratislava, Slovakia; Institute of Experimental Endocrinology, Biomedical Research Center, University Science Park for Biomedicine, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Radka Klepochová
- High Field MR Centre, Department of Biomedical Imaging and Imaged-Guided Therapy, Medical University of Vienna, Vienna, Austria; Christian Doppler Laboratory for Clinical Molecular Imaging, MOLIMA, Medical University of Vienna, Vienna, Austria
| | - Matej Vajda
- Faculty of Physical Education and Sports, Comenius University, Bratislava, Slovakia
| | - Stanislav Šutovský
- 1st Department of Neurology, Faculty of Medicine, Comenius University & University Hospital Bratislava, Slovakia
| | - Ján Cvečka
- Faculty of Physical Education and Sports, Comenius University, Bratislava, Slovakia
| | - Ladislav Valkovič
- High Field MR Centre, Department of Biomedical Imaging and Imaged-Guided Therapy, Medical University of Vienna, Vienna, Austria; Oxford Centre for Clinical Magnetic Resonance Research (OCMR), University of Oxford, Oxford, United Kingdom
| | - Peter Turčáni
- 1st Department of Neurology, Faculty of Medicine, Comenius University & University Hospital Bratislava, Slovakia
| | - Martin Krššák
- High Field MR Centre, Department of Biomedical Imaging and Imaged-Guided Therapy, Medical University of Vienna, Vienna, Austria; Division of Endocrinology and Metabolism, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria; Christian Doppler Laboratory for Clinical Molecular Imaging, MOLIMA, Medical University of Vienna, Vienna, Austria
| | - Milan Sedliak
- Faculty of Physical Education and Sports, Comenius University, Bratislava, Slovakia
| | - Chia-Liang Tsai
- Institute of Physical Education, Health and Leisure Studies, National Cheng Kung University, Tainan, Taiwan, ROC
| | - Barbara Ukropcová
- Institute of Experimental Endocrinology, Biomedical Research Center, University Science Park for Biomedicine, Slovak Academy of Sciences, Bratislava, Slovakia; Institute of Pathophysiology, Faculty of Medicine, Comenius University, Bratislava, Slovakia; Faculty of Physical Education and Sports, Comenius University, Bratislava, Slovakia.
| | - Jozef Ukropec
- Institute of Experimental Endocrinology, Biomedical Research Center, University Science Park for Biomedicine, Slovak Academy of Sciences, Bratislava, Slovakia.
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Sjörs Dahlman A, Blennow K, Zetterberg H, Glise K, Jonsdottir IH. Growth factors and neurotrophins in patients with stress-related exhaustion disorder. Psychoneuroendocrinology 2019; 109:104415. [PMID: 31472432 DOI: 10.1016/j.psyneuen.2019.104415] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 07/23/2019] [Accepted: 08/19/2019] [Indexed: 12/27/2022]
Abstract
Growth factors, such as vascular endothelial growth factor (VEGF) and epidermal growth factor (EGF), and neurotrophic factors, including brain-derived neurotophic factor (BDNF), have attracted attention in studies of the biological effects of long-term stress exposure due to their neuroprotective roles. This study investigated whether circulating levels of EGF, VEGF and BDNF were altered in individuals with stress-related exhaustion disorder. Forty patients diagnosed with exhaustion disorder and 40 healthy subjects (50% women) provided fasting blood samples for analysis of EGF, VEGF, and BDNF in plasma. We found significantly lower levels of EGF, VEGF, and BDNF in patients with ED compared to healthy controls. This pattern was seen in both male and female patients. Given the important roles of BDNF and VEGF for brain plasticity and neurogenesis, decreased levels after long-term stress exposure could indicate increased risk of neuronal damage and cognitive impairments in this patient group.
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Affiliation(s)
- Anna Sjörs Dahlman
- The Institute of Stress Medicine, Region Västra Götaland, Gothenburg, Sweden; The Swedish National Road and Transport Research Institute, Gothenburg, Sweden.
| | - Kaj Blennow
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, University of Gothenburg, Sweden; Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden
| | - Henrik Zetterberg
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, University of Gothenburg, Sweden; Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden; Department of Neurodegenerative Disease, UCL Institute of Neurology, London, United Kingdom; UK Dementia Research Institute at UCL, London, United Kingdom
| | - Kristina Glise
- The Institute of Stress Medicine, Region Västra Götaland, Gothenburg, Sweden
| | - Ingibjörg H Jonsdottir
- The Institute of Stress Medicine, Region Västra Götaland, Gothenburg, Sweden; Department of Public Health and Community Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
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Senkevich KA, Miliukhina IV, Pchelina SN. [The genetic predictors of cognitive impairment in Parkinson's disease]. Zh Nevrol Psikhiatr Im S S Korsakova 2019; 118:109-117. [PMID: 30251988 DOI: 10.17116/jnevro2018118081109] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Parkinson's disease (PD) is a common neurodegenerative disorder that can be both sporadic and familial. A number of studies are devoted to the study of non-motor symptoms in PD today. Cognitive deficits, and especially dementia, are one of the most severe and disabling non-motor symptoms of PD. More than a quarter of patients in the early stages of PD have a moderate cognitive impairment, more than half of patients with PD develop dementia within 10 years from the date of diagnosis. Using genome-wide association studies (GWAS), a number of genes associated with cognitive impairment have been identified based on a comparison of genetic and clinical phenotypes. These genes can be divided into three groups: genes that lead to the development of PD and are inherited according to the laws of Mendel (SNCA), genes that are risk factors for PD development (GBA, MAPT) and genes associated with the development of cognitive impairment, but not with PD (COMT, APOE, BDNF). This review examines the effect of genetic variants in the above-mentioned genes on cognitive functions in patients with PD. The elucidation of the genetic basis of cognitive deficits in PD could help in choice of treatment tactics and in development of new therapeutic strategies.
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Affiliation(s)
- K A Senkevich
- Institute of Experimental Medicine, St. Petersburg, Russia; Pavlov First Saint Petersburg State Medical University, St. Petersburg, Russia; St. Petersburg Nuclear Physics Institute named by Konstantinov of NRC 'Kurchatov Institute', Gatchina, Russia
| | - I V Miliukhina
- Institute of Experimental Medicine, St. Petersburg, Russia; Pavlov First Saint Petersburg State Medical University, St. Petersburg, Russia
| | - S N Pchelina
- Institute of Experimental Medicine, St. Petersburg, Russia; Pavlov First Saint Petersburg State Medical University, St. Petersburg, Russia; St. Petersburg Nuclear Physics Institute named by Konstantinov of NRC 'Kurchatov Institute', Gatchina, Russia
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Cheng X, Mei B, Zuo Y, Wu H, Peng X, Zhao Q, Liu X, Gu E. Retracted:
A multicentre randomised controlled trial of the effect of intra‐operative dexmedetomidine on cognitive decline after surgery. Anaesthesia 2019; 74:741-750. [PMID: 30835822 DOI: 10.1111/anae.14606] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/18/2019] [Indexed: 12/21/2022]
Affiliation(s)
- X.‐Q. Cheng
- Department of Anaesthesiology First Affiliated Hospital of Anhui Medical University HefeiChina
| | - B. Mei
- Department of Anaesthesiology First Affiliated Hospital of Anhui Medical University HefeiChina
| | - Y.‐M. Zuo
- Department of Anaesthesiology First Affiliated Hospital of Anhui Medical University HefeiChina
| | - H. Wu
- Department of Anaesthesiology First Affiliated Hospital of Anhui Medical University HefeiChina
| | - X.‐H. Peng
- Department of Anaesthesiology First Affiliated Hospital of Anhui Medical University HefeiChina
| | - Q. Zhao
- Department of Anaesthesiology First Affiliated Hospital of Anhui Medical University HefeiChina
| | - X.‐S. Liu
- Department of Anaesthesiology First Affiliated Hospital of Anhui Medical University Hefei China
| | - E. Gu
- Department of Anaesthesiology First Affiliated Hospital of Anhui Medical University Hefei China
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Xia H, Du X, Yin G, Zhang Y, Li X, Cai J, Huang X, Ning Y, Soares JC, Wu F, Zhang XY. Effects of smoking on cognition and BDNF levels in a male Chinese population: relationship with BDNF Val66Met polymorphism. Sci Rep 2019; 9:217. [PMID: 30659208 PMCID: PMC6338731 DOI: 10.1038/s41598-018-36419-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 11/14/2018] [Indexed: 01/17/2023] Open
Abstract
Recent studies demonstrate that brain-derived neurotrophic factor (BDNF) might be associated with nicotine addiction, and circulating BDNF is a biomarker of memory and general cognitive function. Moreover, studies suggest that a functional polymorphism of the BDNF Val66Met may mediate hippocampal-dependent cognitive functions. We aimed to explore the relationships between smoking, cognitive performance and BDNF in a normal Chinese Han population. We recruited 628 male healthy subjects, inducing 322 smokers and 306 nonsmokers, and genotyped them the BDNF Val66Met polymorphism. Of these, we assessed 114 smokers and 98 nonsmokers on the repeatable battery for the assessment of neuropsychological status (RBANS), and 103 smokers and 89 nonsmokers on serum BDNF levels. Smokers scored lower than the nonsmokers on RBANS total score (p = 0.002), immediate memory (p = 0.003) and delayed memory (p = 0.021). BDNF levels among the smokers who were Val allele carriers were correlated with the degree of cognitive impairments, especially attention, as well as with the carbon monoxide concentrations. Our findings suggest that smoking is associated with cognitive impairment in a male Chinese Han population. The association between higher BDNF levels and cognitive impairment, mainly attention in smokers appears to be dependent on the BDNF Val66Met polymorphism.
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Affiliation(s)
- Haisen Xia
- Hefei Fourth People's Hospital, Anhui Mental Health Center, Hefei, China
| | - Xiangdong Du
- Suzhou Psychiatric Hospital, The Affiliated Guangji Hospital of Soochow University, Jiangsu, China
| | - Guangzhong Yin
- Suzhou Psychiatric Hospital, The Affiliated Guangji Hospital of Soochow University, Jiangsu, China
| | - Yingyang Zhang
- Suzhou Psychiatric Hospital, The Affiliated Guangji Hospital of Soochow University, Jiangsu, China
| | - Xiaosi Li
- Hefei Fourth People's Hospital, Anhui Mental Health Center, Hefei, China
| | - Junyi Cai
- The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China
| | - Xingbing Huang
- The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China
| | - Yuping Ning
- The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China
| | - Jair C Soares
- Department of Psychiatry and Behavioral Sciences, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Fengchun Wu
- The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China.
| | - Xiang Yang Zhang
- Institute of Psychology, Chinese Academy of Sciences, Beijing, China.
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Wyrobek J, LaFlam A, Max L, Tian J, Neufeld KJ, Kebaish KM, Walston JD, Hogue CW, Riley LH, Everett AD, Brown CH. Association of intraoperative changes in brain-derived neurotrophic factor and postoperative delirium in older adults. Br J Anaesth 2018; 119:324-332. [PMID: 28854532 DOI: 10.1093/bja/aex103] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/23/2017] [Indexed: 01/19/2023] Open
Abstract
Background Delirium is common after surgery, although the aetiology is poorly defined. Brain-derived neurotrophic factor (BDNF) is a neurotrophin important in neurotransmission and neuroplasticity. Decreased levels of BDNF have been associated with poor cognitive outcomes, but few studies have characterized the role of BDNF perioperatively. We hypothesized that intraoperative decreases in BDNF levels are associated with postoperative delirium. Methods Patients undergoing spine surgery were enrolled in a prospective cohort study. Plasma BDNF was collected at baseline and at least hourly intraoperatively. Delirium was assessed using rigorous methods, including the Confusion Assessment Method (CAM) and CAM for the intensive care unit. Associations of changes in BDNF and delirium were examined using regression models. Results Postoperative delirium developed in 32 of 77 (42%) patients. The median baseline BDNF level was 7.6 ng ml -1 [interquartile range (IQR) 3.0-11.2] and generally declined intraoperatively [median decline 61% (IQR 31-80)]. There was no difference in baseline BDNF levels by delirium status. However, the percent decline in BDNF was greater in patients who developed delirium [median 74% (IQR 51-82)] vs in those who did not develop delirium [median 50% (IQR 14-79); P =0.03]. Each 1% decline in BDNF was associated with increased odds of delirium in unadjusted {odds ratio [OR] 1.02 [95% confidence interval (CI) 1.00-1.04]; P =0.01}, multivariable-adjusted [OR 1.02 (95% CI 1.00-1.03); P =0.03], and propensity score-adjusted models [OR 1.02 (95% CI 1.00-1.04); P =0.03]. Conclusions We observed an association between intraoperative decline in plasma BDNF and delirium. These preliminary results need to be confirmed but suggest that plasma BDNF levels may be a biomarker for postoperative delirium.
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Affiliation(s)
- J Wyrobek
- Department of Anesthesiology and Critical Care, Brigham and Women's Hospital, Boston, MA, USA
| | - A LaFlam
- Tufts University School of Medicine, Boston, MA, USA
| | - L Max
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - J Tian
- Department of Biostatistics, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA
| | - K J Neufeld
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - K M Kebaish
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - J D Walston
- Department of Geriatric Medicine and Gerontology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - C W Hogue
- Department of Anesthesiology and Critical Care Medicine, Northwestern Feinberg School of Medicine, Chicago, IL, USA
| | - L H Riley
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - A D Everett
- Department of Pediatrics, Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - C H Brown
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
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Chang YH, Wang TY, Lee SY, Chen SL, Huang CC, Chen PS, Yang YK, Hong JS, Lu RB. Memory Impairment and Plasma BDNF Correlates of the BDNF Val66Met Polymorphism in Patients With Bipolar II Disorder. Front Genet 2018; 9:583. [PMID: 30542371 PMCID: PMC6277750 DOI: 10.3389/fgene.2018.00583] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 11/09/2018] [Indexed: 11/13/2022] Open
Abstract
Studies suggest that a functional polymorphism of brain-derived neurotrophic factor (BDNF), polymorphism BDNF Val66Met affects cognitive functions, however, the effect is unclear in bipolar II (BD-II) disorder. We used the Wechsler Memory Scale-third edition (WMS-III), the presence of the BDNF Val66Met polymorphism, and plasma concentrations of BDNF to investigate the association between memory impairment and BDNF in BD-II disorder. We assessed the memory functions of 228 BD-II patients and 135 healthy controls (HCs). BD-II patients had significantly lower scores on five of the eight WMS-III subscales. In addition to education, the BDNF polymorphism were associated with the following subscales of WMS-III, auditory delayed memory, auditory delayed recognition memory and general memory scores in BD-II patients, but not in HC. Moreover, BD-II patients with the Val-homozygote scored significantly higher on the visual immediate memory subscale than did those with the Met/Met and Val/Met polymorphisms. The significantly positive effect of the Val-homozygote did not have a significantly positive effect on memory in the HC group, however. We found no significant association between BDNF polymorphisms and plasma concentrations of BDNF. The plasma BDNF was more likely to be associated with clinical characteristics than it was with memory indices in the BD-II group. The impaired memory function in BD-II patients might be dependent upon the association between the BDNF Val66Met polymorphism and peripheral BDNF levels.
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Affiliation(s)
- Yun-Hsuan Chang
- Department of Psychology, College of Medical and Health Science, Asia University, Taichung, Taiwan.,Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan.,Department of Psychiatry, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Tzu-Yun Wang
- Department of Psychiatry, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Dou-Liou Branch, Department of Psychiatry, National Cheng Kung University Hospital, Yunlin, Taiwan
| | - Sheng-Yu Lee
- Department of Psychiatry, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Department of Psychiatry, Kaohsiung Veteran's General Hospital, Kaohsiung, Taiwan.,Department of Psychiatry, College of Medicine, National Yang-Ming University, Taipei, Taiwan.,Department of Psychiatry, Faculty of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Shiou-Lan Chen
- Department of Psychiatry, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,M.Sc. Program in Tropical Medicine, College of Medicine, Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Chih-Chun Huang
- Dou-Liou Branch, Department of Psychiatry, National Cheng Kung University Hospital, Yunlin, Taiwan
| | - Po See Chen
- Department of Psychiatry, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Department of Psychiatry, Faculty of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Institute of Behavioral Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yen Kuang Yang
- Department of Psychiatry, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Dou-Liou Branch, Department of Psychiatry, National Cheng Kung University Hospital, Yunlin, Taiwan.,Institute of Behavioral Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Jau-Shyong Hong
- Neurobiology Laboratory, National Institutes of Health/National Institute of Environmental Health Sciences, Research Triangle Park, NC, United States
| | - Ru-Band Lu
- Department of Psychiatry, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Beijing YiNing Hospital, Beijing, China
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Wagner S, Quente J, Staedtler S, Koch K, Richter-Schmidinger T, Kornhuber J, Ihmsen H, Schuettler J. A high risk of sleep apnea is associated with less postoperative cognitive dysfunction after intravenous anesthesia: results of an observational pilot study. BMC Anesthesiol 2018; 18:139. [PMID: 30285632 PMCID: PMC6169037 DOI: 10.1186/s12871-018-0602-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Accepted: 09/24/2018] [Indexed: 11/15/2022] Open
Abstract
Background The obstructive sleep apnea syndrome (OSAS) is characterized by temporary cerebral hypoxia which can cause cognitive dysfunction. On the other hand, hypoxia induced neurocognitive deficits are detectable after general anesthesia. The objective of this study was to evaluate the impact of a high risk of OSAS on the postoperative cognitive dysfunction after intravenous anesthesia. Methods In this single center trial between June 2012 and June 2013 43 patients aged 55 to 80 years with an estimated hospital stay of at least 3 days undergoing surgery were enrolled. Patients were screened for a high risk of OSAS using the STOP-BANG test. The cognitive function was assessed using a neuropsychological test battery, including the DemTect test for cognitive impairment and the RMBT test for memory, the day before surgery and within 36 h after extubation. Results Twenty-two of the 43 analyzed patients were identified as patients with a high risk of OSAS. Preoperatively, OSAS patients showed a significant worse performance only for the DemTect (p = 0.0043). However, when comparing pre- and postoperative test results, the OSAS patients did not show a significant loss in any test but significantly improved in RMBT test, whereas the control group showed a significant worse performance in three of eight tests. In five tests, we found a significant difference between the two groups with respect to the change from pre- to postoperative cognitive function. Conclusion Patients with a high risk of OSAS showed a less impairment of memory function and work memory performance after intravenous anesthesia. This might be explained by a beneficial effect of intrinsic hypoxic preconditioning in these patients.
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Affiliation(s)
- Soeren Wagner
- Department of Anesthesiology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany. .,Department of Anesthesiology, Katharinenhospital Klinikum Stuttgart, Kriegsbergstrasse 60, D-70174, Stuttgart, Germany.
| | - Joerg Quente
- Department of Anesthesiology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
| | - Sven Staedtler
- Department of Anesthesiology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
| | - Katharina Koch
- Department of Anesthesiology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany.,Department of Anaesthesiology, Klinikum Oldenburg AöR, University Hospital Oldenburg, Oldenburg, Germany
| | - Tanja Richter-Schmidinger
- Department of Psychiatry and Psychotherapy, University Hospital Erlangen, Friedrich-Alexander-University, Erlangen, Germany
| | - Johannes Kornhuber
- Department of Psychiatry and Psychotherapy, University Hospital Erlangen, Friedrich-Alexander-University, Erlangen, Germany
| | - Harald Ihmsen
- Department of Anesthesiology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
| | - Juergen Schuettler
- Department of Anesthesiology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
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Follow-up of the manganese-exposed workers healthy cohort (MEWHC) and biobank management from 2011 to 2017 in China. BMC Public Health 2018; 18:944. [PMID: 30068329 PMCID: PMC6090756 DOI: 10.1186/s12889-018-5880-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 07/24/2018] [Indexed: 12/31/2022] Open
Abstract
Background Long-term excess exposure to environmental manganese (Mn) can lead to multi-system damage, especially in occupational populations. Therefore, we established a manganese-exposed workers healthy cohort (MEWHC), focusing on the systemic health effects related to Mn exposure. Here, we aimed to describe the follow-up activity for the MEWHC study and establish a standardized biological sample bank for the scientific management of high-quality biospecimens and the attached data from 2011 to 2017. Methods Baseline examinations for onsite workers were conducted, and the biobank for the MEWHC was first established in 2011; follow-up examinations occurred four times between July 2012 and November 2017. All questionnaires, clinical data and biological samples were routinely collected during each follow-up activity. Additional workers were recruited in 2016, which further enriched the resources of the biobank. Results A total of 2359 onsite workers and 612 retired workers at a ferromanganese refinery were enrolled in the prospective cohort, and their biological samples were obtained in the preliminary baseline survey and the follow-up investigation, including 2971 blood and urine samples from the cohort. In addition, 1524 hair samples, 1404 nail (toe and finger nails) and 1226 fecal samples were also collected. All specimens were preserved in the biobank, and the data were scientifically managed using a computer system. Conclusions The MEWHC study in China provides an effective way to obtain biological samples such as plasma, DNA, hair and urine for storage in a biobank for further study. The standardized management of various samples is crucial for accessing high-quality biospecimens. Electronic supplementary material The online version of this article (10.1186/s12889-018-5880-0) contains supplementary material, which is available to authorized users.
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Shelar M, Nanaware S, Arulmozhi S, Lohidasan S, Mahadik K. Validation of ethnopharmacology of ayurvedic sarasvata ghrita and comparative evaluation of its neuroprotective effect with modern alcoholic and lipid based extracts in β-amyloid induced memory impairment. JOURNAL OF ETHNOPHARMACOLOGY 2018; 219:182-194. [PMID: 29501676 DOI: 10.1016/j.jep.2018.02.032] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 12/20/2017] [Accepted: 02/18/2018] [Indexed: 06/08/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Sarasvata ghrita (SG), a polyherbal formulation from ayurveda, an ancient medicinal system of India, has been used to improve intelligence and memory, treat speech delay, speaking difficulties and low digestion power in children. AIM OF THE STUDY Study aimed to validate the ethno use of SG in memory enhancement through systematic scientific protocol. The effect of SG and modern extracts of ingredients of SG was compared on cognitive function and neuroprotection in amyloid-β peptide 25-35(Aβ25-35) induced memory impairment in wistar rats. Further the underlying mechanism for neuroprotective activity was investigated. MATERIALS AND METHODS SG was prepared as per traditional method, ethanolic extract (EE) was prepared by conventional method and lipid based extract was prepared by modern extraction method. All extracts were standardised by newly developed HPLC method with respect to marker compounds. SG, EE and LE were administered orally to male Wistar rats at doses of 100,200 and 400 mg/kg Body Weight by feeding needle for a period of 21 days after the intracerebroventricular administration of Aβ25-35 bilaterally. Spatial memory of rats was tested using Morris water maze (MWM) and Radial arm maze (RAM) test. The possible underlying mechanisms for the cognitive improvement exhibited by SG, EE and LE was investigated through ex-vivo brain antioxidant effect, monoamine level estimation, acetylcholine esterase (AchE) inhibitory effect and Brain-derived neurotropic factor (BDNF) levels estimation. RESULTS SG, EE and LE were analyzed by HPLC method, results showed that EE extract has high percent of selected phytoconstituents as compared with SG and LE. SG and LE decrease escape latency and searching distance in a dose dependant manner during MWM test. In case of RAM significant decrease in number of errors and increase in number of correct choices indicate an elevation in retention and recall aspects of learning and memory after administration of SG an LE. SG and LE extract can efficiently prevent accumulation of β-amyloid plaque in hippocampus region. There was increase in SOD, GSH, CAT and NO level and decrease in MDA levels in SG and LE administered animals. SG and LE have found to exhibit AchE inhibitiory activity and significant dose-dependant increase in BDNF level in the plasma. SG and LE significantly increased the levels of noradrenaline, dopamine and 5-hydroxytryptamine in the brain. CONCLUSION The study validated the neuroprotective activity of SG. The study concludes the extraction efficiency of SG for selected phytoconstituents is less than modern methods. However the neuroprotective activity of SG and LE was found to be greater than EE.
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Affiliation(s)
- Madhuri Shelar
- Department of Pharmaceutiacal Chemistry, Bharati Vidyapeeth University, Poona College of Pharmacy, Paud Road, Erandwane, Pune India
| | - Sadhana Nanaware
- Department of Pharmaceutiacal Chemistry, Bharati Vidyapeeth University, Poona College of Pharmacy, Paud Road, Erandwane, Pune India
| | - S Arulmozhi
- Department of Pharmacology, Bharati Vidyapeeth University, Poona College of Pharmacy, Paud Road, Erandwane, Pune India
| | - Sathiyanarayanan Lohidasan
- Department of Pharmaceutiacal Chemistry, Bharati Vidyapeeth University, Poona College of Pharmacy, Paud Road, Erandwane, Pune India.
| | - Kakasaheb Mahadik
- Department of Pharmaceutiacal Chemistry, Bharati Vidyapeeth University, Poona College of Pharmacy, Paud Road, Erandwane, Pune India.
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Weinstein G, Preis SR, Beiser AS, Kaess B, Chen TC, Satizabal C, Rahman F, Benjamin EJ, Vasan RS, Seshadri S. Clinical and Environmental Correlates of Serum BDNF: A Descriptive Study with Plausible Implications for AD Research. Curr Alzheimer Res 2018; 14:722-730. [PMID: 28164772 DOI: 10.2174/1567205014666170203094520] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 12/13/2016] [Accepted: 01/27/2017] [Indexed: 12/19/2022]
Abstract
BACKGROUND Brain derived neurotrophic factor (BDNF) may play a central role in the pathogenesis of Alzheimer's disease (AD) through neurotrophic effects on basal cholinergic neurons. Reduced serum levels of BDND are observed among AD patients and may predict AD risk. Nevertheless, knowledge about factors associated with its levels in blood is lacking. OBJECTIVE To identify clinical and demographic correlates of serum BDNF levels. METHODS BDNF was measured from serum collected between 1992-1996 and 1998-2001 in participants from the Original and Offspring cohorts of the Framingham Study, respectively. A cross-sectional analysis was done to evaluate the relationship between clinical measures and BDNF levels using standard linear regression and stepwise models. Analyses were conducted in the total sample and separately in each cohort, and were adjusted for age and sex. RESULTS BDNF was measured in 3,689 participants (mean age 65 years, 56% women; 82% Offspring). Cigarette smoking and high total cholesterol were associated with elevated BDNF levels, and history of atrial fibrillation was associated with decreased levels. Elevated BDNF levels were related to greater physical activity and lower Tumor Necrosis Factor-α levels in Offspring. Stepwise models also revealed associations with statin use, alcohol consumption and Apolipoprotein Eε4 genotype. CONCLUSION Serum BDNF correlates with various metabolic, inflammatory and life-style measures which in turn have been linked with risk of AD. Future studies of serum BDNF should adjust for these correlates and are needed to further explore the underlying interplay between BDNF and other factors in the pathophysiology of cognitive impairment and AD.
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Affiliation(s)
- Galit Weinstein
- School of Public Health, University of Haifa, 199 Aba Khoushy Ave., Mount Carmel, Haifa. Israel
| | | | - Alexa S Beiser
- The Department of Biostatistics, Boston University School of Public Health, Boston, MA, United States
| | | | - Tai C Chen
- The Department of Neurology, Boston University School of Medicine, Boston, MA, United States
| | - Claudia Satizabal
- The Department of Neurology, Boston University School of Medicine, Boston, MA, United States
| | - Faisal Rahman
- The Department of Medicine, Boston University School of Medicine, Boston, MA, United States
| | - Emelia J Benjamin
- The Department of Epidemiology, Boston University School of Public Health, Boston, MA, Boston, United States
| | - Ramachandran S Vasan
- The Department of Epidemiology, Boston University School of Public Health, Boston, MA, Boston, United States
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Doniger GM, Beeri MS, Bahar-Fuchs A, Gottlieb A, Tkachov A, Kenan H, Livny A, Bahat Y, Sharon H, Ben-Gal O, Cohen M, Zeilig G, Plotnik M. Virtual reality-based cognitive-motor training for middle-aged adults at high Alzheimer's disease risk: A randomized controlled trial. ALZHEIMERS & DEMENTIA-TRANSLATIONAL RESEARCH & CLINICAL INTERVENTIONS 2018; 4:118-129. [PMID: 29955655 PMCID: PMC6021455 DOI: 10.1016/j.trci.2018.02.005] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Introduction Ubiquity of Alzheimer's disease (AD) coupled with relatively ineffectual pharmacologic treatments has spurred interest in nonpharmacologic lifestyle interventions for prevention or risk reduction. However, evidence of neuroplasticity notwithstanding, there are few scientifically rigorous, ecologically relevant brain training studies focused on building cognitive reserve in middle age to protect against cognitive decline. This pilot study will examine the ability of virtual reality (VR) cognitive training to improve cognition and cerebral blood flow (CBF) in middle-aged individuals at high AD risk due to parental history. Methods The design is an assessor-blind, parallel group, randomized controlled trial of VR cognitive-motor training in middle-aged adults with AD family history. The experimental group will be trained with adaptive “real-world” VR tasks targeting sustained and selective attention, working memory, covert rule deduction, and planning, while walking on a treadmill. One active control group will perform the VR tasks without treadmill walking; another will walk on a treadmill while watching scientific documentaries (nonspecific cognitive stimulation). A passive (waitlist) control group will not receive training. Training sessions will be 45 minutes, twice/week for 12 weeks. Primary outcomes are global cognition and CBF (from arterial spin labeling [ASL]) at baseline, immediately after training (training gain), and 3 months post-training (maintenance gain). We aim to recruit 125 participants, including 20 passive controls and 35 in the other groups. Discussion Current pharmacologic therapies are for symptomatic AD patients, whereas nonpharmacologic training is administrable before symptom onset. Emerging evidence suggests that cognitive training improves cognitive function. However, a more ecologically valid cognitive-motor VR setting that better mimics complex daily activities may augment transfer of trained skills. VR training has benefited clinical cohorts, but benefit in asymptomatic high-risk individuals is unknown. If effective, this trial may help define a prophylactic regimen for AD, adaptable for home-based application in high-risk individuals.
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Affiliation(s)
- Glen M. Doniger
- Center of Advanced Technologies in Rehabilitation, Sheba Medical Center, Ramat Gan, Israel
- Joseph Sagol Neuroscience Center, Sheba Medical Center, Ramat Gan, Israel
- Baruch Ivcher School of Psychology, Interdisciplinary Center (IDC) Herzliya, Herzliya, Israel
- Corresponding author. Tel.: +97235304874; Fax: +97235307572.
| | - Michal Schnaider Beeri
- Joseph Sagol Neuroscience Center, Sheba Medical Center, Ramat Gan, Israel
- Baruch Ivcher School of Psychology, Interdisciplinary Center (IDC) Herzliya, Herzliya, Israel
- Department of Psychiatry, The Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Alex Bahar-Fuchs
- Joseph Sagol Neuroscience Center, Sheba Medical Center, Ramat Gan, Israel
- Center for Research on Aging, Health, and Wellbeing, Research School of Population Health, The Australian National University, Canberra, ACT, Australia
- The Academic Unit for Psychiatry of Old Age, Department of Psychiatry, The University of Melbourne, Victoria, Australia
| | - Amihai Gottlieb
- Center of Advanced Technologies in Rehabilitation, Sheba Medical Center, Ramat Gan, Israel
| | - Anastasia Tkachov
- Joseph Sagol Neuroscience Center, Sheba Medical Center, Ramat Gan, Israel
| | - Hagar Kenan
- Joseph Sagol Neuroscience Center, Sheba Medical Center, Ramat Gan, Israel
| | - Abigail Livny
- Joseph Sagol Neuroscience Center, Sheba Medical Center, Ramat Gan, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Department of Diagnostic Imaging, Sheba Medical Center, Ramat Gan, Israel
| | - Yotam Bahat
- Center of Advanced Technologies in Rehabilitation, Sheba Medical Center, Ramat Gan, Israel
| | - Hadar Sharon
- Center of Advanced Technologies in Rehabilitation, Sheba Medical Center, Ramat Gan, Israel
| | - Oran Ben-Gal
- Center of Advanced Technologies in Rehabilitation, Sheba Medical Center, Ramat Gan, Israel
| | - Maya Cohen
- Center of Advanced Technologies in Rehabilitation, Sheba Medical Center, Ramat Gan, Israel
- Joseph Sagol Neuroscience Center, Sheba Medical Center, Ramat Gan, Israel
| | - Gabi Zeilig
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Department of Neurological Rehabilitation, Sheba Medical Center, Ramat Gan, Israel
| | - Meir Plotnik
- Center of Advanced Technologies in Rehabilitation, Sheba Medical Center, Ramat Gan, Israel
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
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Guzzardi MA, Sanguinetti E, Bartoli A, Kemeny A, Panetta D, Salvadori PA, Burchielli S, Iozzo P. Elevated glycemia and brain glucose utilization predict BDNF lowering since early life. J Cereb Blood Flow Metab 2018; 38:447-455. [PMID: 28281382 PMCID: PMC5851134 DOI: 10.1177/0271678x17697338] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Accepted: 01/27/2017] [Indexed: 11/16/2022]
Abstract
Obesity and diabetes associate with neurodegeneration. Brain glucose and BDNF are fundamental in perinatal development. BDNF is related to brain health, food intake and glucose metabolism. We characterized the relationship between glycemia and/or brain glucose utilization (by 18FDG-PET during fasting and glucose loading), obesity and BDNF in 4-weeks old (pre-obese) and 12-weeks old (obese) Zucker fa/fa rats, and their age-matched fa/+ controls. In 75 human infants, we assessed cord blood BDNF and glucose levels, appetite regulating hormones, body weight and maternal factors. Young and adult fa/fa rats showed glucose intolerance and brain hyper-utilization compared to controls. Glycemia and age were positively related to brain glucose utilization, and were negative predictors of BDNF levels. In humans, fetal glycemia was dependent on maternal glycemia at term, and negatively predicted BDNF levels. Leptin levels were associated with higher body weight and lower BDNF levels. Glucose intolerance and elevated brain glucose utilization already occur in young, pre-obese rats, suggesting that they precede obesity onset in Zucker fatty rats. Glycemic elevation and brain glucose overexposure predict circulating BDNF deficiency since perinatal and early life. Future studies should evaluate whether the control of maternal and fetal glycemia during late intrauterine development can prevent these unfavorable interactions.
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Affiliation(s)
| | - Elena Sanguinetti
- Institute of Clinical Physiology, National Research Council (CNR), Pisa, Italy
- Scuola Superiore di Studi Universitari Sant’Anna, Pisa, Italy
| | - Antonietta Bartoli
- Institute of Clinical Physiology, National Research Council (CNR), Pisa, Italy
| | - Alessandra Kemeny
- Gynaecology and Obstetrics Department, Azienda USL Toscana Nord Ovest, Massa e Carrara, Italy
| | - Daniele Panetta
- Institute of Clinical Physiology, National Research Council (CNR), Pisa, Italy
| | - Piero A Salvadori
- Institute of Clinical Physiology, National Research Council (CNR), Pisa, Italy
| | | | - Patricia Iozzo
- Institute of Clinical Physiology, National Research Council (CNR), Pisa, Italy
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Balietti M, Giuli C, Fattoretti P, Fabbietti P, Papa R, Postacchini D, Conti F. Effect of a Comprehensive Intervention on Plasma BDNF in Patients with Alzheimer's Disease. J Alzheimers Dis 2018; 57:37-43. [PMID: 28222525 PMCID: PMC5345639 DOI: 10.3233/jad-161168] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A comprehensive intervention (CI) on patients with Alzheimer’s disease was assessed by measuring plasmabrain-derived neurotrophic factor (pBDNF) and ADAS-Cog score (ADAS-Cogscore) before, immediately after (FU1), and 6 (FU2) and 24 months (FU3) after the CI. Baseline pBDNF was higher in patients with moderate AD (but not mild AD) than in healthy controls. At FU1, pBDNF and ADAS-Cogscore decreased significantly. At FU2 and FU3, patients’ cognitive status worsened and pBDNF further increased versus baseline, suggesting that CI interruption may be a stress event that prevents return to homeostasis. CI exerted positive short-term effects, but more information is needed on long-term consequences.
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Affiliation(s)
| | | | | | | | - Roberta Papa
- Center of Socio-economic Gerontological Research, INRCA, Ancona, Italy
| | | | - Fiorenzo Conti
- Center for Neurobiology of Aging, INRCA, Ancona, Italy.,Department of Experimental and Clinical Medicine, Section of Neuroscience and Cell Biology, Università Politecnica delle Marche, Ancona, Italy
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