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Li Z, Kong W, Park HY, Koo SJ, Bang M, Park JT, Lee E, An SK. Association of hair cortisol concentration with brain-derived neurotrophic factor gene methylation: The role of sex as a moderator. Stress Health 2024:e3401. [PMID: 38581566 DOI: 10.1002/smi.3401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 03/20/2024] [Accepted: 03/29/2024] [Indexed: 04/08/2024]
Abstract
Hair cortisol concentration (HCC) reflects the long-term activity of the hypothalamus-pituitary-adrenal (HPA) axis in response to stress. Brain-derived neurotrophic factor DNA methylation (BDNF DNAM) may affect HCC, and sex and Val66Met may contribute to this association. Thus, the aim of this study was to investigate the associations between HCC and Brain-derived neurotrophic factor (BDNF) DNAM, and the moderating effects of Val66Met and sex. We recruited 191 healthy young participants (96 women, mean age 23.0 ± 2.6 years) and collected body samples to evaluate HCC, and to determine BDNF DNAM and Val66Met genotypes. We analyzed the effects of BDNF DNAM, sex, and Val66Met on HCC. We also evaluated the associations between BDNF DNAM and HCC in groups separated by sex and genotypes. We found a marked association of BDNF DNAM with HCC across men and women. After dividing the data by sex, a positive correlation of HCC with BDNF DNAM was found only in women. There was no substantial moderation effect of Val66Met genotypes on the association between BDNF DNAM and HCC. Therefore, BDNF DNAM was found to have positive association with HCC only in healthy young women, indicating that sex moderates the association of BDNF DNAM with long-term HPA axis activity.
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Affiliation(s)
- Zhenxu Li
- Section of Self, Affect and Neuroscience, Institute of Behavioral Science in Medicine, Yonsei University College of Medicine, Seoul, South Korea
- Yonsei University College of Medicine, Seoul, South Korea
| | - Wanji Kong
- Section of Self, Affect and Neuroscience, Institute of Behavioral Science in Medicine, Yonsei University College of Medicine, Seoul, South Korea
- Yonsei University College of Medicine, Seoul, South Korea
| | - Hye Yoon Park
- Section of Self, Affect and Neuroscience, Institute of Behavioral Science in Medicine, Yonsei University College of Medicine, Seoul, South Korea
| | - Se Jun Koo
- Section of Self, Affect and Neuroscience, Institute of Behavioral Science in Medicine, Yonsei University College of Medicine, Seoul, South Korea
- Graduate Program in Cognitive Science, Yonsei University, Seoul, South Korea
| | - Minji Bang
- Department of Psychiatry, CHA University School of Medicine, Seongnam-si, Gyeonggi-do, South Korea
| | - Jung Tak Park
- Institute of Kidney Disease Research, Yonsei University College of Medicine, Seoul, South Korea
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, South Korea
| | - Eun Lee
- Section of Self, Affect and Neuroscience, Institute of Behavioral Science in Medicine, Yonsei University College of Medicine, Seoul, South Korea
- Department of Psychiatry, Yonsei University College of Medicine, Severance Hospital, Seoul, South Korea
| | - Suk Kyoon An
- Section of Self, Affect and Neuroscience, Institute of Behavioral Science in Medicine, Yonsei University College of Medicine, Seoul, South Korea
- Graduate Program in Cognitive Science, Yonsei University, Seoul, South Korea
- Department of Psychiatry, Yonsei University College of Medicine, Severance Hospital, Seoul, South Korea
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2
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Rossi C, Amato A, Alesi M, Alioto A, Schiera G, Drid P, Messina G, Pagliaro A, Di Liegro I, Proia P. Hormonal and psychological influences on performance anxiety in adolescent female volleyball players: a multi-approach study. PeerJ 2024; 12:e16617. [PMID: 38390388 PMCID: PMC10883150 DOI: 10.7717/peerj.16617] [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: 06/02/2023] [Accepted: 11/15/2023] [Indexed: 02/24/2024] Open
Abstract
Background The neuroendocrine system has important implications for affiliation behavior among humans and can be used to assess the correlation between social relationships, stress, and health. This can be influenced by social closeness; this aspect is the closeness towards another individual or a group of individuals such as a sports team. Sports performance anxiety is considered an unpleasant emotional reaction composed of physiological, cognitive, affective, and behavioral components. This motivates us to learn about the process that can influence the outcome of competition. Hormones and genetics would seem to influence outcome and performance. In this regard, many studies have focused on the exercise response as a function of ovarian hormones and it has been observed that progesterone is a hormone that plays a key role in reducing anxiety, and thus stress, in humans and other animals. On the other hand, high cortisol concentrations are known to contribute to increased anxiety levels. However, the salivary alpha-amylase (sAA) enzyme has been suggested as marker of acute stress than cortisol. Genetics also seem to influence anxiety and stress management as in the case of brain-derived neurotrophic factor (BDNF) and striatal dopamine transporter (DAT). Therefore, the study aims to investigate social closeness, as a measure of sports team cohesion that can influence athletes' performance results, and its ability to influence the secretion of hormones, such as progesterone and cortisol, that affect the management of sports anxiety while also taking into account genetic background during a volleyball match. Methods Twenty-six female volleyball players who volunteered participated in this study (mean ± SD: age, 12.07 ± 0.7 years), and played in the final of the provincial volleyball championship in Palermo. All girls were during the ovarian cycle, in detail between the follicular and early ovulatory phases. Results The results showed a significant decrease in salivary cortisol only in the winning group (p < 0.039). In fact, whilst in the latter the pre-match level was 7.7 ng/ml and then decreased to 4.5 ng/ml after the match, in the losers group change was not statistically significant (7.8 ng/ml vs 6.6 ng/ml pre- and post-match). As to the sAA concentration, the winning team showed a statistically significant variation between pre- and post-match than the losers (166.01 ± 250 U/ml vs 291.59 ± 241 U/ml) (p = 0.01). Conclusion Analyzing the results of the SAS-2 psychological test it is highlighted that, on average, the loser group was more anxious than the winning group, and this contributed to the final result. In conclusion, there is strong evidence supporting the state of the art that many factors can affect performance anxiety and thus the performance itself.
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Affiliation(s)
- Carlo Rossi
- Sport and Exercise Sciences Research Unit, University of Palermo, Palermo, Italy
- Research and Innovation, Centro Medico di Fisioterapia “Villa Sarina”, Trapani, Italy
| | - Alessandra Amato
- Department of Biomedical and Biotechnological Sciences, Section of Anatomy, Histology and Movement Science, School of Medicine, University of Catania, Catania, Italy
| | - Marianna Alesi
- Department of Psychology, Educational Sciences and Human Movement, University of Palermo, Palermo, Italy
| | - Anna Alioto
- Sport and Exercise Sciences Research Unit, University of Palermo, Palermo, Italy
| | - Gabriella Schiera
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Palermo, Italy
| | - Patrik Drid
- Faculty of Sport and Physical Education, University of Novi Sad, Novi Sad, Serbia
| | - Giulia Messina
- Sport and Exercise Sciences Research Unit, University of Palermo, Palermo, Italy
| | - Andrea Pagliaro
- Sport and Exercise Sciences Research Unit, University of Palermo, Palermo, Italy
| | - Italia Di Liegro
- Department of Biomedicine, Neurosciences and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Patrizia Proia
- Sport and Exercise Sciences Research Unit, University of Palermo, Palermo, Italy
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Corrone M, Nanev A, Amato I, Bicknell R, Piantella S, Maruff P, van den Buuse M, Wright BJ. The brain-derived neurotrophic factor Val66met polymorphism is associated with better attention and working memory performance and resilience to mild chronic stress. Eur J Neurosci 2023; 58:3903-3916. [PMID: 37740693 DOI: 10.1111/ejn.16153] [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: 05/15/2023] [Revised: 09/07/2023] [Accepted: 09/10/2023] [Indexed: 09/25/2023]
Abstract
The val66met polymorphism of the brain-derived neurotrophic factor (BDNF) gene has been identified as a potential moderator for the relationship between chronic stress and executive functioning. However, whether the presence of the met allele increases cognitive vulnerability or resilience to stress has yet to be determined. Given the established effects of autonomic activity and psychological arousal on executive functioning, in the present study, 56 healthy university students completed self-report measures of chronic stress, positive arousal (vigour) and negative arousal (anxiety) and measured heart-rate variability to quantify autonomic activity. Participants then completed a cognitive test battery that measured attention, decision-making, visual learning and working memory. Regression analyses demonstrated that Val/met participants performed better on attention and working memory tasks than Val/val participants, but no differences were seen in decision-making and visual learning. Further, Val/met participants were protected from stress-related differences in attention seen in Val/val participants. Val66met was not associated with physiological or psychological arousal. This study demonstrates that val66met plays an important but selective role in cognitive performance.
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Affiliation(s)
- Michelle Corrone
- School of Psychology and Public Health, La Trobe University, Melbourne, Victoria, Australia
| | - Aleshia Nanev
- School of Psychology and Public Health, La Trobe University, Melbourne, Victoria, Australia
| | - Isabella Amato
- School of Psychology and Public Health, La Trobe University, Melbourne, Victoria, Australia
| | - Rowena Bicknell
- School of Psychology and Public Health, La Trobe University, Melbourne, Victoria, Australia
| | - Stefan Piantella
- School of Psychology and Public Health, La Trobe University, Melbourne, Victoria, Australia
| | - Paul Maruff
- Cogstate Ltd, Melbourne, Victoria, Australia
| | - Maarten van den Buuse
- School of Psychology and Public Health, La Trobe University, Melbourne, Victoria, Australia
| | - Bradley J Wright
- School of Psychology and Public Health, La Trobe University, Melbourne, Victoria, Australia
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Eslami M, Oryan SH, Rahnema M, Bigdeli MR. Neuroprotective Effects of Normobaric Hyperoxia and Transplantation of Encapsulated Choroid Plexus Epithelial Cells on The Focal Brain Ischemia. CELL JOURNAL 2021; 23:303-312. [PMID: 34308573 PMCID: PMC8286464 DOI: 10.22074/cellj.2021.7204] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 12/21/2020] [Indexed: 01/01/2023]
Abstract
Objective Choroid plexus epithelial cells (CPECs) have the epithelial characteristic, produce cerebrospinal fluid,
contribute to the detoxification process in the central nervous system (CNS), and are responsible for the synthesis and
release of many nerve growth factors. On the other hand, studies suggest that normobaric hyperoxia (HO) by induction
of ischemic tolerance (IT) can protect against brain damage and neurological diseases. We examined the effect of
combination therapy of encapsulated CPECs and HO to protect against ischemic brain injury.
Materials and Methods In this experimental study, six groups of adult male Wistar rats were randomly organized:
sham, room air (RA)+middle cerebral artery occlusion (MCAO), HO+MCAO, RA+MCAO+encapsulated CPECs,
HO+MCAO+encapsulated CPECs, RA+MCAO+empty capsules. RA/HO were pretreatment. The CPECs were isolated
from the brain of neonatal Wistar rats, cultured, and encapsulated. Then microencapsulated CPECs were transplanted
in the neck of the animal immediately after the onset of reperfusion in adult rats that had been exposed to 60 minutes
MCAO. After 23 hours of reperfusion, the neurologic deficit score (NDS) was assessed. Next, rats were killed, and
brains were isolated for measuring brain infarction volume, blood-brain barrier (BBB) permeability, edema, the activity
of superoxide dismutase (SOD), and catalase (CAT) and also, the level of malondialdehyde (MDA). Results Our results showed that NDS decreased equally in HO+MCAO, RA+MCAO+encapsulated CPECs, and
HO+MCAO+encapsulated CPECs groups. Brain infarction volume decreased up 79%, BBB stability increased, edema
decreased, SOD and CAT activities increased, and MDA decreased in the combination group of HO and transplantation
of encapsulated CPECs in the ischemic brain as compared with when HO or transplantation of encapsulated CPECs was
applied alone.
Conclusion The combination of HO and transplantation of encapsulated CPECs for stroke in rats was more effective
than the other treatments, and it can be taken into account as a promising treatment for ischemic stroke.
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Affiliation(s)
- Maesumeh Eslami
- Department of Animal Physiology, Faculty of Biological Sciences, Kharazmi University, Tehran, Iran.
| | - S Hahrbanoo Oryan
- Department of Animal Physiology, Faculty of Biological Sciences, Kharazmi University, Tehran, Iran
| | - Mehdi Rahnema
- Biology Research Center, Zanjan Branch, Islamic Azad University, Zanjan, Iran
| | - Mohammad Reza Bigdeli
- Department of Animal Sciences and Biotechnology, Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, Tehran, Iran. .,Inistitute for Cognitive and Brain Science, Shahid Beheshti University, Tehran, Iran
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5
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Martens L, Herrmann L, Colic L, Li M, Richter A, Behnisch G, Stork O, Seidenbecher C, Schott BH, Walter M. Met carriers of the BDNF Val66Met polymorphism show reduced Glx/NAA in the pregenual ACC in two independent cohorts. Sci Rep 2021; 11:6742. [PMID: 33762638 PMCID: PMC7990923 DOI: 10.1038/s41598-021-86220-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 03/02/2021] [Indexed: 12/17/2022] Open
Abstract
The Met allele of the Val66Met SNP of the BDNF gene (rs6265) is associated with impaired activity-dependent release of brain-derived neurotrophic factor (BDNF), resulting in reduced synaptic plasticity, impaired glutamatergic neurotransmission, and morphological changes. While previous work has demonstrated Val66Met effects on magnetic resonance spectroscopy (MRS) markers of either glutamatergic metabolism (Glx) or neuronal integrity (NAA), no study has investigated Val66Met effects on these related processes simultaneously. As these metabolites share a metabolic pathway, the Glx/NAA ratio may be a more sensitive marker of changes associated with the Val66Met SNP. This ratio is increased in psychiatric disorders linked to decreased functioning in the anterior cingulate cortex (ACC). In this study, we investigated the correlation of the Val66Met polymorphism of the BDNF gene with Glx/NAA in the pregenual anterior cingulate cortex (pgACC) using MRS at 3 Tesla (T) (n = 30, all males) and 7 T (n = 98, 40 females). In both cohorts, Met carriers had lower Glx/NAA compared to Val homozygotes. Follow-up analyses using absolute quantification revealed that the Met carriers do not show decreased pgACC glutamate or glutamine levels, but instead show increased NAA compared to the Val homozygotes. This finding may in part explain conflicting evidence for Val66Met as a risk factor for developing psychiatric illnesses.
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Affiliation(s)
- Louise Martens
- University Department of Psychiatry and Psychotherapy, Tübingen, Germany.,Graduate Training Center, IMPRS, Tübingen, Germany.,Max Planck Institute for Biological Cybernetics, Tübingen, Germany
| | - Luisa Herrmann
- University Department of Psychiatry and Psychotherapy, Tübingen, Germany.,Department of Psychiatry and Psychotherapy, Jena University Hospital, Jena, Germany
| | - Lejla Colic
- Department of Psychiatry and Psychotherapy, Jena University Hospital, Jena, Germany.,Clinical Affective Neuroscience Laboratory, Magdeburg, Germany.,Department of Psychiatry, Yale School of Medicine, New Haven, CT, USA
| | - Meng Li
- Department of Psychiatry and Psychotherapy, Jena University Hospital, Jena, Germany.,Clinical Affective Neuroscience Laboratory, Magdeburg, Germany
| | - Anni Richter
- Leibniz Institute for Neurobiology, Magdeburg, Germany
| | | | - Oliver Stork
- Department of Genetics & Molecular Neurobiology, Institute of Biology, Otto-Von-Guericke-University, Magdeburg, Germany.,Center for Behavioral Brain Sciences, Magdeburg, Germany
| | - Constanze Seidenbecher
- Leibniz Institute for Neurobiology, Magdeburg, Germany.,Center for Behavioral Brain Sciences, Magdeburg, Germany
| | - Björn H Schott
- Leibniz Institute for Neurobiology, Magdeburg, Germany.,Center for Behavioral Brain Sciences, Magdeburg, Germany.,Department of Psychiatry and Psychotherapy, University Medicine Göttingen, Göttingen, Germany.,German Center for Neurodegenerative Diseases (DZNE), Göttingen, Germany
| | - Martin Walter
- University Department of Psychiatry and Psychotherapy, Tübingen, Germany. .,Department of Psychiatry and Psychotherapy, Jena University Hospital, Jena, Germany. .,Clinical Affective Neuroscience Laboratory, Magdeburg, Germany.
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Zhao Y, Liang W, Cai F, Wu Q, Wang Y. Fluconazole for Hypercortisolism in Cushing's Disease: A Case Report and Literature Review. Front Endocrinol (Lausanne) 2020; 11:608886. [PMID: 33391186 PMCID: PMC7774647 DOI: 10.3389/fendo.2020.608886] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 11/12/2020] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND Cushing's disease is associated with an increased risk of pulmonary fungal infection, which could be a relative contraindication for pituitary adenoma excision surgery. CASE We report a case of a patient with Cushing's disease and pulmonary Cryptococcus neoformans. A 48-year-old woman was admitted to our hospital because of moon face and edema. Laboratory and radiological findings suggested a diagnosis of Cushing's disease and pulmonary cryptococcus infection. Fluconazole 400 mg per day was administered intravenously and continued orally for 3 months. Both cryptococcus infection and hypercortisolism relieved and transsphenoidal resection was performed. CONCLUSION Cushing's disease can be effectively treated with fluconazole to normalize cortisol concentration prior to pituitary surgery. Fluconazole is an alternative treatment especially in Cushing's disease patients with cryptococcal pneumonia.
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Affiliation(s)
- Yiming Zhao
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital Zhejiang University School of Medicine, Hangzhou, China
| | - Weiwei Liang
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital Zhejiang University School of Medicine, Hangzhou, China
| | - Feng Cai
- Department of Neurosurgery, The Second Affiliated Hospital Zhejiang University School of Medicine, Hangzhou, China
| | - Qun Wu
- Department of Neurosurgery, The Second Affiliated Hospital Zhejiang University School of Medicine, Hangzhou, China
| | - Yongjian Wang
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital Zhejiang University School of Medicine, Hangzhou, China
- *Correspondence: Yongjian Wang,
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7
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Fiocco A, D’Amico D, de Beaumont L, Poirier J, Lupien S. Association between BDNF Polymorphism and Hypothalamic-Pituitary-Adrenal Activity in Later Adulthood. Gerontology 2019; 66:131-137. [DOI: 10.1159/000502143] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 07/16/2019] [Indexed: 11/19/2022] Open
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8
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Linz R, Puhlmann LMC, Apostolakou F, Mantzou E, Papassotiriou I, Chrousos GP, Engert V, Singer T. Acute psychosocial stress increases serum BDNF levels: an antagonistic relation to cortisol but no group differences after mental training. Neuropsychopharmacology 2019; 44:1797-1804. [PMID: 30991416 PMCID: PMC6785147 DOI: 10.1038/s41386-019-0391-y] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 03/24/2019] [Accepted: 04/04/2019] [Indexed: 12/26/2022]
Abstract
Brain-derived neurotrophic factor (BDNF) is an essential facilitator of neuronal plasticity. By counteracting the adverse effects of excessive stress-induced glucocorticoid signaling, BDNF has been implicated as a resilience factor to psychopathology caused by chronic stress. Insights into the effects of acute stress on peripheral BDNF levels in humans are inconclusive. The short-term interplay between BDNF and cortisol in response to acute psychosocial stress remains unexplored. Furthermore, it is unknown whether mental training that is effective at reducing cortisol reactivity can also influence BDNF during acute stress. In the current study, we investigated serum BDNF levels during an acute psychosocial stress paradigm, the Trier Social Stress Test (TSST), in 301 healthy participants (178 women, mean age = 40.65) recruited as part of the ReSource Project, a large-scale mental training study consisting of three distinct 3-month training modules. Using a cross-sectional study design, we first examined the relationship between BDNF and salivary cortisol in a control group with no mental training. Subsequent analyses focused on differences in BDNF stress levels between control and mental training groups. We show that serum BDNF is indeed stress-sensitive, characterized by a significant post-stress increase and subsequent decline to recovery. While respective increases in BDNF and cortisol were not associated, we found two indications for an antagonistic relationship. Higher BDNF peaks after stress were associated with steeper cortisol recovery. On the other hand, the magnitude of the cortisol stress response was linked to steeper BDNF recovery after stress. BDNF levels were not modulated by any of the mental training modules. Providing novel evidence for the dynamics of BDNF and cortisol during acute stress, our findings may further inform research on the physiological mechanisms involved in stress chronification and the associated health risks.
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Affiliation(s)
- R. Linz
- 0000 0001 0041 5028grid.419524.fResearch Group “Social Stress and Family Health”, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany ,0000 0001 0041 5028grid.419524.fDepartment of Social Neuroscience, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
| | - L. M. C. Puhlmann
- 0000 0001 0041 5028grid.419524.fResearch Group “Social Stress and Family Health”, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany ,0000 0001 0041 5028grid.419524.fDepartment of Social Neuroscience, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
| | - F. Apostolakou
- grid.413408.aDepartment of Clinical Biochemistry, “Aghia Sophia” Children’s Hospital, Athens, Greece
| | - E. Mantzou
- grid.413408.aFirst Department of Pediatrics, School of Medicine, University of Athens, “Aghia Sophia” Children’s Hospital, Athens, Greece
| | - I. Papassotiriou
- grid.413408.aDepartment of Clinical Biochemistry, “Aghia Sophia” Children’s Hospital, Athens, Greece
| | - G. P. Chrousos
- 0000 0001 2155 0800grid.5216.0First Department of Pediatrics, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - V. Engert
- 0000 0001 0041 5028grid.419524.fResearch Group “Social Stress and Family Health”, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany ,0000 0001 0041 5028grid.419524.fDepartment of Social Neuroscience, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
| | - T. Singer
- 0000 0001 0041 5028grid.419524.fDepartment of Social Neuroscience, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany ,0000 0001 2105 1091grid.4372.2Social Neuroscience Lab, Max Planck Society, Berlin, Germany
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9
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González MMC. Dim Light at Night and Constant Darkness: Two Frequently Used Lighting Conditions That Jeopardize the Health and Well-being of Laboratory Rodents. Front Neurol 2018; 9:609. [PMID: 30116218 PMCID: PMC6084421 DOI: 10.3389/fneur.2018.00609] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Accepted: 07/09/2018] [Indexed: 12/27/2022] Open
Abstract
The influence of light on mammalian physiology and behavior is due to the entrainment of circadian rhythms complemented with a direct modulation of light that would be unlikely an outcome of circadian system. In mammals, physiological and behavioral circadian rhythms are regulated by the suprachiasmatic nucleus (SCN) of the hypothalamus. This central control allows organisms to predict and anticipate environmental change, as well as to coordinate different rhythmic modalities within an individual. In adult mammals, direct retinal projections to the SCN are responsible for resetting and synchronizing physiological and behavioral rhythms to the light-dark (LD) cycle. Apart from its circadian effects, light also has direct effects on certain biological functions in such a way that the participation of the SCN would not be fundamental for this network. The objective of this review is to increase awareness, within the scientific community and commercial providers, of the fact that laboratory rodents can experience a number of adverse health and welfare outcomes attributed to commonly-used lighting conditions in animal facilities during routine husbandry and scientific procedures, widely considered as “environmentally friendly.” There is increasing evidence that exposure to dim light at night, as well as chronic constant darkness, challenges mammalian physiology and behavior resulting in disrupted circadian rhythms, neural death, a depressive-behavioral phenotype, cognitive impairment, and the deregulation of metabolic, physiological, and synaptic plasticity in both the short and long terms. The normal development and good health of laboratory rodents requires cyclical light entrainment, adapted to the solar cycle of day and night, with null light at night and safe illuminating qualities during the day. We therefore recommend increased awareness of the limited information available with regards to lighting conditions, and therefore that lighting protocols must be taken into consideration when designing experiments and duly highlighted in scientific papers. This practice will help to ensure the welfare of laboratory animals and increase the likelihood of producing reliable and reproducible results.
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Affiliation(s)
- Mónica M C González
- Sección Cronobiología y Sueño, Instituto Ferrero de Neurología y Sueño, Buenos Aires, Argentina
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10
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Jiang R, Babyak MA, Brummett BH, Siegler IC, Kuhn CM, Williams RB. Brain-derived neurotrophic factor (BDNF) Val66Met polymorphism interacts with gender to influence cortisol responses to mental stress. Psychoneuroendocrinology 2017; 79:13-19. [PMID: 28249185 PMCID: PMC5367970 DOI: 10.1016/j.psyneuen.2017.02.005] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 01/24/2017] [Accepted: 02/07/2017] [Indexed: 12/25/2022]
Abstract
Brain-derived neurotrophic factor (BDNF) Val66Met polymorphism has been associated with cortisol responses to stress with gender differences reported, although the findings are not entirely consistent. To evaluate the role of Val66Met genotype and gender on cortisol responses to stress, we conducted a 45-min mental stress protocol including four tasks and four rest periods. Blood cortisol was collected for assay immediately before and after each task and rest period. A significant two-way interaction of Val66Met genotype×gender (P=0.022) was observed on the total area under the curve (AUC), a total cortisol response over time, such that the Val/Val genotype was associated with a larger cortisol response to stress as compared to the Met group in women but not in men. Further contrast analyses between the Val/Val and Met group for each stress task showed a similar increased cortisol pattern among women Val/Val genotype but not among men. The present findings indicate the gender differences in the effect of Val66Met genotype on the cortisol responses to stress protocol, and extend the evidence for the importance of gender and the role of Val66Met in the modulation of stress reactivity and subsequent depression prevalence. Further studies and the underlying mechanism need to be investigated, which may provide an insight for prevention, intervention, and treatment strategies that target those at high risk.
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Affiliation(s)
- Rong Jiang
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC, USA.
| | - Michael A Babyak
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC, USA
| | - Beverly H Brummett
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC, USA
| | - Ilene C Siegler
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC, USA
| | - Cynthia M Kuhn
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC, USA
| | - Redford B Williams
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC, USA
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11
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Savage JE, Sawyers C, Roberson-Nay R, Hettema JM. The genetics of anxiety-related negative valence system traits. Am J Med Genet B Neuropsychiatr Genet 2017; 174:156-177. [PMID: 27196537 PMCID: PMC5349709 DOI: 10.1002/ajmg.b.32459] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 05/05/2016] [Indexed: 01/11/2023]
Abstract
NIMH's Research Domain Criteria (RDoC) domain of negative valence systems (NVS) captures constructs of negative affect such as fear and distress traditionally subsumed under the various internalizing disorders. Through its aims to capture dimensional measures that cut across diagnostic categories and are linked to underlying neurobiological systems, a large number of phenotypic constructs have been proposed as potential research targets. Since "genes" represent a central "unit of analysis" in the RDoC matrix, it is important for studies going forward to apply what is known about the genetics of these phenotypes as well as fill in the gaps of existing knowledge. This article reviews the extant genetic epidemiological data (twin studies, heritability) and molecular genetic association findings for a broad range of putative NVS phenotypic measures. We find that scant genetic epidemiological data is available for experimentally derived measures such as attentional bias, peripheral physiology, or brain-based measures of threat response. The molecular genetic basis of NVS phenotypes is in its infancy, since most studies have focused on a small number of candidate genes selected for putative association to anxiety disorders (ADs). Thus, more research is required to provide a firm understanding of the genetic aspects of anxiety-related NVS constructs. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Jeanne E. Savage
- Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University, Richmond, VA
| | - Chelsea Sawyers
- Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University, Richmond, VA
| | - Roxann Roberson-Nay
- Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University, Richmond, VA,Department of Psychiatry, Virginia Commonwealth University, Richmond, VA
| | - John M. Hettema
- Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University, Richmond, VA,Department of Psychiatry, Virginia Commonwealth University, Richmond, VA
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Assessment of oxidative stress parameters of brain-derived neurotrophic factor heterozygous mice in acute stress model. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2016; 19:388-93. [PMID: 27279982 PMCID: PMC4887711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVES Exposing to stress may be associated with increased production of reactive oxygen species (ROS). Therefore, high level of oxidative stress may eventually give rise to accumulation of oxidative damage and development of numerous neurodegenerative diseases. It has been presented that brain-derived neurotrophic factor (BDNF) supports neurons against various neurodegenerative conditions. Lately, there has been growing evidence that changes in the cerebral neurotrophic support and especially in the BDNF expression and its engagement with ROS might be important in various disorders and neurodegenerative diseases. Hence, we aimed to investigate protective effects of BDNF against stress-induced oxidative damage. MATERIALS AND METHODS Five- to six-month-old male wild-type and BDNF knock-down mice were used in this study. Activities of catalase (CAT) and superoxide dismutase (SOD) enzymes, and the amount of malondialdehyde (MDA) were assessed in the cerebral homogenates of studied groups in response to acute restraint stress. RESULTS Exposing to acute physiological stress led to significant elevation in the markers of oxidative stress in the cerebral cortexes of experimental groups. CONCLUSION As BDNF-deficient mice were observed to be more susceptible to stress-induced oxidative damage, it can be suggested that there is a direct interplay between oxidative stress indicators and BDNF levels in the brain.
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