1
|
Hirakawa H, Terao T, Hatano K, Shirahama M, Kugimiya T, Kohno K, Matsuta H, Shimomura T, Fujiki M. Increased volume of the left hippocampal dentate gyrus after 4 weeks of bright light exposure in patients with mood disorders: a randomized controlled study. Transl Psychiatry 2023; 13:394. [PMID: 38102115 PMCID: PMC10724173 DOI: 10.1038/s41398-023-02688-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 11/24/2023] [Accepted: 11/27/2023] [Indexed: 12/17/2023] Open
Abstract
Bright light exposure (BL) induces neurogenesis in the rat hippocampal dentate gyrus (DG). We had previously conducted a randomized controlled trial (RCT) in which a 4-week period of BL in healthy participants resulted in increased volume of the left DG-head. This study aimed to investigate the effects of BL on the DG in patients with mood disorders. A 4-week RCT was conducted in which patients with mood disorders were randomly assigned to either a BL group (10,000 lx) or dim light exposure group (DL group; 50 lx). All patients underwent clinical assessment and magnetic resonance imaging at baseline and after the intervention. The study registration number is UMIN000019220. Our final sample included 24 patients (BL group, n = 12; DL group, n = 12). A significant effect of time and group was detected in the volumes of the left DG-head (F (1, 22) = 11.6, partial η2 = 0.35, p = 0.003) and left DG-total (left DG-total = left DG-head + left DG-body; [F (1, 22) = 6.5, partial η2 = 0.23, p = 0.02]). Additionally, the BL group demonstrated a significant increase in the volume of the left DG-head (95% CI: -5.4 to -1.6, d = 1.2, p = 0.002) and left DG-total (95% CI: -6.3 to -1.5, d = 1.06, p = 0.005) as well as a positive correlation between the percentage change in the volume of the left DG-total and the percentage change in the scores of the mood visual analog scale (r = 0.58, p = 0.04). In conclusion, our study results suggest that compared to DL, BL leads to a significantly greater increase in the left DG volume in patients with mood disorders. This increase in the left DG volume may be associated with mood improvement in the patients.
Collapse
Affiliation(s)
- Hirofumi Hirakawa
- Department of Neuropsychiatry, Oita University Faculty of Medicine, Oita, Japan.
| | - Takeshi Terao
- Department of Neuropsychiatry, Oita University Faculty of Medicine, Oita, Japan
| | - Koji Hatano
- Department of Neuropsychiatry, Oita University Faculty of Medicine, Oita, Japan
| | - Masanao Shirahama
- Department of Neuropsychiatry, Oita University Faculty of Medicine, Oita, Japan
| | - Tsuyoshi Kugimiya
- Department of Neuropsychiatry, Oita University Faculty of Medicine, Oita, Japan
| | - Kentaro Kohno
- Department of Neuropsychiatry, Oita University Faculty of Medicine, Oita, Japan
| | - Hiroyuki Matsuta
- Department of Neurosurgery, Oita University Faculty of Medicine, Oita, Japan
| | - Tsuyoshi Shimomura
- Hospital informatics center, Oita University Faculty of Medicine, Oita, Japan
| | - Minoru Fujiki
- Department of Neurosurgery, Oita University Faculty of Medicine, Oita, Japan
| |
Collapse
|
2
|
Cutuli D, Sampedro-Piquero P. BDNF and its Role in the Alcohol Abuse Initiated During Early Adolescence: Evidence from Preclinical and Clinical Studies. Curr Neuropharmacol 2022; 20:2202-2220. [PMID: 35748555 PMCID: PMC9886842 DOI: 10.2174/1570159x20666220624111855] [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: 12/19/2021] [Revised: 02/23/2022] [Accepted: 04/19/2022] [Indexed: 11/22/2022] Open
Abstract
Brain-derived neurotrophic factor (BDNF) is a crucial brain signaling protein that is integral to many signaling pathways. This neurotrophin has shown to be highly involved in brain plastic processes such as neurogenesis, synaptic plasticity, axonal growth, and neurotransmission, among others. In the first part of this review, we revise the role of BDNF in different neuroplastic processes within the central nervous system. On the other hand, its deficiency in key neural circuits is associated with the development of psychiatric disorders, including alcohol abuse disorder. Many people begin to drink alcohol during adolescence, and it seems that changes in BDNF are evident after the adolescent regularly consumes alcohol. Therefore, the second part of this manuscript addresses the involvement of BDNF during adolescent brain maturation and how this process can be negatively affected by alcohol abuse. Finally, we propose different BNDF enhancers, both behavioral and pharmacological, which should be considered in the treatment of problematic alcohol consumption initiated during the adolescence.
Collapse
Affiliation(s)
- Debora Cutuli
- Department of Psychology, Medicine and Psychology Faculty, University Sapienza of Rome, Rome, Italy; ,I.R.C.C.S. Fondazione Santa Lucia, Laboratorio di Neurofisiologia Sperimentale e del Comportamento, Via del Fosso di Fiorano 64, 00143 Roma, Italy; ,Address correspondence to these authors at the Department of Biological and Health Psychology, Psychology Faculty, Autonomous University of Madrid, Madrid, Spain, Spain and Cutuli, D. at Fondazione Santa Lucia. Laboratorio di Neurofisiologia Sperimentale e del Comportamento. Via del Fosso di Fiorano 64, 00143 Roma, Italy; E-mails: ;
| | - Piquero Sampedro-Piquero
- Department of Biological and Health Psychology, Psychology Faculty, Autonomous University of Madrid, Madrid, Spain,Address correspondence to these authors at the Department of Biological and Health Psychology, Psychology Faculty, Autonomous University of Madrid, Madrid, Spain, Spain and Cutuli, D. at Fondazione Santa Lucia. Laboratorio di Neurofisiologia Sperimentale e del Comportamento. Via del Fosso di Fiorano 64, 00143 Roma, Italy; E-mails: ;
| |
Collapse
|
3
|
Rapid-acting antidepressants and the circadian clock. Neuropsychopharmacology 2022; 47:805-816. [PMID: 34837078 PMCID: PMC8626287 DOI: 10.1038/s41386-021-01241-w] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 09/20/2021] [Accepted: 11/08/2021] [Indexed: 12/13/2022]
Abstract
A growing number of epidemiological and experimental studies has established that circadian disruption is strongly associated with psychiatric disorders, including major depressive disorder (MDD). This association is becoming increasingly relevant considering that modern lifestyles, social zeitgebers (time cues) and genetic variants contribute to disrupting circadian rhythms that may lead to psychiatric disorders. Circadian abnormalities associated with MDD include dysregulated rhythms of sleep, temperature, hormonal secretions, and mood which are modulated by the molecular clock. Rapid-acting antidepressants such as subanesthetic ketamine and sleep deprivation therapy can improve symptoms within 24 h in a subset of depressed patients, in striking contrast to conventional treatments, which generally require weeks for a full clinical response. Importantly, animal data show that sleep deprivation and ketamine have overlapping effects on clock gene expression. Furthermore, emerging data implicate the circadian system as a critical component involved in rapid antidepressant responses via several intracellular signaling pathways such as GSK3β, mTOR, MAPK, and NOTCH to initiate synaptic plasticity. Future research on the relationship between depression and the circadian clock may contribute to the development of novel therapeutic strategies for depression-like symptoms. In this review we summarize recent evidence describing: (1) how the circadian clock is implicated in depression, (2) how clock genes may contribute to fast-acting antidepressants, and (3) the mechanistic links between the clock genes driving circadian rhythms and neuroplasticity.
Collapse
|
4
|
Lee JM, Kim CJ, Park JM, Song MK, Kim YJ. Effect of treadmill exercise on spatial navigation impairment associated with cerebellar Purkinje cell loss following chronic cerebral hypoperfusion. Mol Med Rep 2018; 17:8121-8128. [PMID: 29693705 PMCID: PMC5983984 DOI: 10.3892/mmr.2018.8893] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Accepted: 03/20/2018] [Indexed: 12/16/2022] Open
Abstract
In addition to roles in motor coordination, the cerebellum is also associated with cognitive function. The aim of the present study was to investigate the effect of treadmill exercise on spatial navigation deficit induced by chronic cerebral hypoperfusion (CCH). Furthermore, whether decreased loss of Purkinje cells, which contain the calcium-binding protein in the posterior lobe of the cerebellum, attenuates the spatial navigation deficit induced by CCH was also investigated. Wistar rats were randomly divided into three groups: Sham group, bilateral common carotid arteries occlusion (BCCAO) group and a BCCAO + exercise (Ex) group. The rats in the BCCAO + Ex group ran on a treadmill for 30 min once a day for 8 weeks, starting at 4 weeks post-birth. CCH was induced by performing BCCAO at 12 weeks post-birth. The Morris water maze test was performed to determine the spatial navigation function of the rats. To investigate the histological features of the cerebellum in all of the experimental groups post-treatment, terminal deoxynucleotidyl transferase dUTP nick end labeling staining, as well as immunohistochemical analysis revealing the expression of calbindin, parvalbumin, glial fibrillary acidic protein, ionized calcium-binding adaptor molecule 1 and caspase-3, was performed. The results of the present study revealed that treadmill exercise improved spatial navigation, decreased the expression of reactive astrocytes and microglial cells, and decreased apoptotic rates in the cerebellar vermis post-CCH. Treadmill exercise also attenuated the loss of Purkinje cells following CCH. The number of Purkinje cells was revealed to be negatively correlated with spatial navigation performance. These results indicate that treadmill exercise may attenuate spatial navigation impairment via inhibition of Purkinje cell loss in the posterior lobe of the cerebellum following CCH. Therefore, treadmill exercise may represent a therapeutic strategy for the treatment of patients with spatial navigation impairment following CCH.
Collapse
Affiliation(s)
- Jae-Min Lee
- Department of Physiology, College of Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Chang-Ju Kim
- Department of Physiology, College of Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Jong-Min Park
- Department of Nursing, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Min Kyung Song
- Department of Nursing, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Youn-Jung Kim
- Department of Basic Nursing Science, College of Nursing Science, Kyung Hee University, Seoul 02447, Republic of Korea
| |
Collapse
|
5
|
Physical activity, visual impairment, and eye disease. Eye (Lond) 2018; 32:1296-1303. [PMID: 29610523 DOI: 10.1038/s41433-018-0081-8] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 02/11/2018] [Accepted: 02/21/2018] [Indexed: 12/26/2022] Open
Abstract
Numerous studies have demonstrated physical activity is a strong factor in overall health and well-being, and a growing body of literature, reviewed herein, suggests that several eye conditions, including glaucoma, age-related macular degeneration, and diabetic retinopathy, are associated with lower activity levels. Likewise, physical activity levels are lower in persons with worse vision. Research in this area has utilized both self-reported physical activity measures as well as objective measures of activity (i.e., accelerometers), each of which have their own strengths and limitations. Putative mechanisms explaining the association of various eye conditions with physical activity are discussed. It is possible that activity restriction occurs as a downstream consequence of eye disease/visual impairment, that activity restriction causes eye disease/visual impairment, or that causality is bidirectional; evidence supporting each of these theories is put forth. An improved understanding of the relationship between physical activity and eye disease will highlight potential secondary health risks resulting from eye disease, and can help determine whether activity might serve as a readily available preventative measure to prevent specific eye conditions.
Collapse
|
6
|
Li K, Guo X, Jin Z, Ouyang X, Zeng Y, Feng J, Wang Y, Yao L, Ma L. Effect of Simulated Microgravity on Human Brain Gray Matter and White Matter--Evidence from MRI. PLoS One 2015; 10:e0135835. [PMID: 26270525 PMCID: PMC4535759 DOI: 10.1371/journal.pone.0135835] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Accepted: 07/27/2015] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND There is limited and inconclusive evidence that space environment, especially microgravity condition, may affect microstructure of human brain. This experiment hypothesized that there would be modifications in gray matter (GM) and white matter (WM) of the brain due to microgravity. METHOD Eighteen male volunteers were recruited and fourteen volunteers underwent -6° head-down bed rest (HDBR) for 30 days simulated microgravity. High-resolution brain anatomical imaging data and diffusion tensor imaging images were collected on a 3T MR system before and after HDBR. We applied voxel-based morphometry and tract-based spatial statistics analysis to investigate the structural changes in GM and WM of brain. RESULTS We observed significant decreases of GM volume in the bilateral frontal lobes, temporal poles, parahippocampal gyrus, insula and right hippocampus, and increases of GM volume in the vermis, bilateral paracentral lobule, right precuneus gyrus, left precentral gyrus and left postcentral gyrus after HDBR. Fractional anisotropy (FA) changes were also observed in multiple WM tracts. CONCLUSION These regions showing GM changes are closely associated with the functional domains of performance, locomotion, learning, memory and coordination. Regional WM alterations may be related to brain function decline and adaption. Our findings provide the neuroanatomical evidence of brain dysfunction or plasticity in microgravity condition and a deeper insight into the cerebral mechanisms in microgravity condition.
Collapse
Affiliation(s)
- Ke Li
- Department of Radiology, Chinese PLA General Hospital, Beijing, China
- Magnetic Resonance Center, 306 Hospital of PLA, Beijing, China
| | - Xiaojuan Guo
- College of Information Science and Technology, Beijing Normal University, Beijing, China
| | - Zhen Jin
- Magnetic Resonance Center, 306 Hospital of PLA, Beijing, China
| | - Xin Ouyang
- College of Information Science and Technology, Beijing Normal University, Beijing, China
| | - Yawei Zeng
- Magnetic Resonance Center, 306 Hospital of PLA, Beijing, China
| | - Jinsheng Feng
- The Third Laboratory, China Astronaut Research and Training Centre, Beijing, China
| | - Yu Wang
- Outpatient Department of 61599 Unit of PLA, Beijing, China
| | - Li Yao
- College of Information Science and Technology, Beijing Normal University, Beijing, China
| | - Lin Ma
- Department of Radiology, Chinese PLA General Hospital, Beijing, China
- * E-mail:
| |
Collapse
|