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Asgel Z, Kouakou MR, Koller D, Pathak GA, Cabrera-Mendoza B, Polimanti R. Unraveling COVID-19 relationship with anxiety disorders and symptoms using genome-wide data. J Affect Disord 2024; 352:333-341. [PMID: 38382819 PMCID: PMC10939738 DOI: 10.1016/j.jad.2024.02.061] [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: 08/07/2023] [Revised: 02/08/2024] [Accepted: 02/16/2024] [Indexed: 02/23/2024]
Abstract
BACKGROUND There is still a limited understanding of the dynamics contributing to the comorbidity of COVID-19 and anxiety outcomes. METHODS To dissect the pleiotropic mechanisms contributing to COVID-19/anxiety comorbidity, we used genome-wide data from UK Biobank (up to 420,531 participants), FinnGen Project (up to 329,077 participants), Million Veteran Program (175,163 participants), and COVID-19 Host Genetics Initiative (up to 122,616 cases and 2,475,240 controls). Specifically, we assessed global and local genetic correlation and genetically inferred effects linking COVID-19 outcomes (infection, hospitalization, and severe respiratory symptoms) to anxiety disorders and symptoms. RESULTS We observed a strong genetic correlation of anxiety disorder with COVID-19 positive status (rg = 0.35, p = 2×10-4) and COVID-19 hospitalization (rg = 0.31, p = 7.2×10-4). Among anxiety symptoms, "Tense, sore, or aching muscles during worst period of anxiety" was genetically correlated with COVID-19 positive status (rg = 0.33, p = 0.001), while "Frequent trouble falling or staying asleep during worst period of anxiety" was genetically correlated with COVID-19 hospitalization (rg = 0.24, p = 0.004). Through a latent causal variable analysis, we observed that COVID-19 outcomes have statistically significant genetic causality proportion (gcp) on anxiety symptoms (e.g., COVID-19 positive status→"Recent easy annoyance or irritability" │gcp│ = 0.18, p = 6.72×10-17). Conversely, anxiety disorders appear to have a possible causal effect on COVID-19 (│gcp│ = 0.38, p = 3.17×10-9). Additionally, we also identified multiple loci with evidence of local genetic correlation between anxiety and COVID-19. These appear to be related to genetic effects shared with lung function, brain morphology, alcohol and tobacco use, and hematologic parameters. CONCLUSIONS This study provided insights into the pleiotropic mechanisms linking COVID-19 and anxiety outcomes, suggesting differences between dynamics related to anxiety disorders and those related to anxiety symptoms.
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Affiliation(s)
- Zeynep Asgel
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
| | - Manuela R Kouakou
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
| | - Dora Koller
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA; Department of Genetics, Microbiology, and Statistics, Faculty of Biology, University of Barcelona, Catalonia, Spain
| | - Gita A Pathak
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA; VA Connecticut Healthcare System, West Haven, CT, USA
| | - Brenda Cabrera-Mendoza
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA; VA Connecticut Healthcare System, West Haven, CT, USA
| | - Renato Polimanti
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA; VA Connecticut Healthcare System, West Haven, CT, USA; Wu Tsai Institute, Yale University, New Haven, CT, USA.
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Kim YK, Jo D, Arjunan A, Ryu Y, Lim YH, Choi SY, Kim HK, Song J. Identification of IGF-1 Effects on White Adipose Tissue and Hippocampus in Alzheimer's Disease Mice via Transcriptomic and Cellular Analysis. Int J Mol Sci 2024; 25:2567. [PMID: 38473814 DOI: 10.3390/ijms25052567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 02/17/2024] [Accepted: 02/19/2024] [Indexed: 03/14/2024] Open
Abstract
Alzheimer's disease (AD) stands as the most prevalent neurodegenerative disorder, characterized by a multitude of pathological manifestations, prominently marked by the aggregation of amyloid beta. Recent investigations have revealed a compelling association between excessive adiposity and glial activation, further correlating with cognitive impairments. Additionally, alterations in levels of insulin-like growth factor 1 (IGF-1) have been reported in individuals with metabolic conditions accompanied by memory dysfunction. Hence, our research endeavors to comprehensively explore the impact of IGF-1 on the hippocampus and adipose tissue in the context of Alzheimer's disease. To address this, we have conducted an in-depth analysis utilizing APP/PS2 transgenic mice, recognized as a well-established mouse model for Alzheimer's disease. Upon administering IGF-1 injections to the APP/PS2 mice, we observed notable alterations in their behavioral patterns, prompting us to undertake a comprehensive transcriptomic analysis of both the hippocampal and adipose tissues. Our data unveiled significant modifications in the functional profiles of these tissues. Specifically, in the hippocampus, we identified changes associated with synaptic activity and neuroinflammation. Concurrently, the adipose tissue displayed shifts in processes related to fat browning and cell death signaling. In addition to these findings, our analysis enabled the identification of a collection of long non-coding RNAs and circular RNAs that exhibited significant changes in expression subsequent to the administration of IGF-1 injections. Furthermore, we endeavored to predict the potential roles of these identified RNA molecules within the context of our study. In summary, our study offers valuable transcriptome data for hippocampal and adipose tissues within an Alzheimer's disease model and posits a significant role for IGF-1 within both the hippocampus and adipose tissue.
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Affiliation(s)
- Young-Kook Kim
- Department of Biochemistry, Chonnam National University Medical School, Hwasun 58128, Jeollanamdo, Republic of Korea
- Biomedical Science Graduate Program (BMSGP), Chonnam National University, Hwasun 58128, Jeollanamdo, Republic of Korea
| | - Danbi Jo
- Biomedical Science Graduate Program (BMSGP), Chonnam National University, Hwasun 58128, Jeollanamdo, Republic of Korea
- Department of Anatomy, Chonnam National University Medical School, Hwasun 58128, Jeollanamdo, Republic of Korea
| | - Archana Arjunan
- Department of Anatomy, Chonnam National University Medical School, Hwasun 58128, Jeollanamdo, Republic of Korea
| | - Yeongseo Ryu
- Department of Biochemistry, Chonnam National University Medical School, Hwasun 58128, Jeollanamdo, Republic of Korea
- Biomedical Science Graduate Program (BMSGP), Chonnam National University, Hwasun 58128, Jeollanamdo, Republic of Korea
| | - Yeong-Hwan Lim
- Department of Biochemistry, Chonnam National University Medical School, Hwasun 58128, Jeollanamdo, Republic of Korea
| | - Seo Yoon Choi
- Biomedical Science Graduate Program (BMSGP), Chonnam National University, Hwasun 58128, Jeollanamdo, Republic of Korea
- Department of Anatomy, Chonnam National University Medical School, Hwasun 58128, Jeollanamdo, Republic of Korea
| | - Hee Kyung Kim
- Department of Endocrinology and Metabolism, Department of Internal Medicine, Chonnam National University Medical School, Hwasun 58128, Jeollanamdo, Republic of Korea
| | - Juhyun Song
- Biomedical Science Graduate Program (BMSGP), Chonnam National University, Hwasun 58128, Jeollanamdo, Republic of Korea
- Department of Anatomy, Chonnam National University Medical School, Hwasun 58128, Jeollanamdo, Republic of Korea
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Hosseini E, Ammar A, Josephson JK, Gibson DL, Askari G, Bragazzi NL, Trabelsi K, Schöllhorn WI, Mokhtari Z. Fasting diets: what are the impacts on eating behaviors, sleep, mood, and well-being? Front Nutr 2024; 10:1256101. [PMID: 38264193 PMCID: PMC10803520 DOI: 10.3389/fnut.2023.1256101] [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: 07/10/2023] [Accepted: 12/12/2023] [Indexed: 01/25/2024] Open
Abstract
Fasting diets (FDs) have drawn great attention concerning their contribution to health and disease over the last decade. Despite considerable interest in FDs, the effect of fasting diets on eating behaviors, sleep, and mood-essential components of diet satisfaction and mental health- has not been addressed comprehensively. Understanding the critical role that fasting plays in these elements will open up potential treatment avenues that have not yet been explored. The aim of the present paper was to conduct a comprehensive critical review exploring the effects of fasting on eating behaviors, sleep, and mood. There is currently a lack of clarity regarding which fasting option yields the most advantageous effects, and there is also a scarcity of consistent trials that assess the effects of FDs in a comparable manner. Similarly, the effects and/or treatment options for utilizing FDs to modify eating and sleep behaviors and enhance mood are still poorly understood. Further researches aiming at understanding the impacts of various fasting regimes, providing new insights into the gut-brain axis and offering new treatment avenues for those with resistant anxiety and depression, are warranted. Alteration of eating behaviors can have lasting effects on various physiological parameters. The use of fasting cures can underpin ancient knowledge with scientific evidence to form a new approach to the prevention and treatment of problems associated with co-morbidities or challenges pertaining to eating behaviors. Therefore, a thorough examination of the various fasting regimens and how they impact disease patterns is also warranted.
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Affiliation(s)
- Elham Hosseini
- Nutrition and Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Achraf Ammar
- Department of Training and Movement Science, Institute of Sport Science, Johannes Gutenberg-University Mainz, Mainz, Germany
- High Institute of Sport and Physical Education, University of Sfax, Sfax, Tunisia
- Research Laboratory, Molecular Bases of Human Pathology, LR19ES13, Faculty of Medicine, University of Sfax, Sfax, Tunisia
| | | | - Deanna L. Gibson
- Department of Biology, University of British Columbia, Kelowna, BC, Canada
- Faculty of Medicine, University of British Columbia, Kelowna, BC, Canada
| | - Gholamreza Askari
- Nutrition and Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
- Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Nicola L. Bragazzi
- Human Nutrition Unit (HNU), Department of Food and Drugs, University of Parma, Parma, Italy
| | - Khaled Trabelsi
- High Institute of Sport and Physical Education, University of Sfax, Sfax, Tunisia
| | - Wolfgang I. Schöllhorn
- Department of Training and Movement Science, Institute of Sport Science, Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Zeinab Mokhtari
- Nutrition and Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
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Zegarra-Valdivia JA, Pignatelli J, Nuñez A, Torres Aleman I. The Role of Insulin-like Growth Factor I in Mechanisms of Resilience and Vulnerability to Sporadic Alzheimer's Disease. Int J Mol Sci 2023; 24:16440. [PMID: 38003628 PMCID: PMC10671249 DOI: 10.3390/ijms242216440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 11/06/2023] [Accepted: 11/14/2023] [Indexed: 11/26/2023] Open
Abstract
Despite decades of intense research, disease-modifying therapeutic approaches for Alzheimer's disease (AD) are still very much needed. Apart from the extensively analyzed tau and amyloid pathological cascades, two promising avenues of research that may eventually identify new druggable targets for AD are based on a better understanding of the mechanisms of resilience and vulnerability to this condition. We argue that insulin-like growth factor I (IGF-I) activity in the brain provides a common substrate for the mechanisms of resilience and vulnerability to AD. We postulate that preserved brain IGF-I activity contributes to resilience to AD pathology as this growth factor intervenes in all the major pathological cascades considered to be involved in AD, including metabolic impairment, altered proteostasis, and inflammation, to name the three that are considered to be the most important ones. Conversely, disturbed IGF-I activity is found in many AD risk factors, such as old age, type 2 diabetes, imbalanced diet, sedentary life, sociality, stroke, stress, and low education, whereas the Apolipoprotein (Apo) E4 genotype and traumatic brain injury may also be influenced by brain IGF-I activity. Accordingly, IGF-I activity should be taken into consideration when analyzing these processes, while its preservation will predictably help prevent the progress of AD pathology. Thus, we need to define IGF-I activity in all these conditions and develop a means to preserve it. However, defining brain IGF-I activity cannot be solely based on humoral or tissue levels of this neurotrophic factor, and new functionally based assessments need to be developed.
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Affiliation(s)
- Jonathan A. Zegarra-Valdivia
- Achucarro Basque Center for Neuroscience, 48940 Leioa, Spain;
- Biomedical Research Networking Center on Neurodegenerative Diseases (CIBERNED), 28029 Madrid, Spain;
- School of Medicine, Universidad Señor de Sipán, Chiclayo 14000, Peru
| | - Jaime Pignatelli
- Biomedical Research Networking Center on Neurodegenerative Diseases (CIBERNED), 28029 Madrid, Spain;
- Cajal Institute (CSIC), 28002 Madrid, Spain
| | - Angel Nuñez
- Department of Anatomy, Histology and Neuroscience, Universidad Autónoma de Madrid, 28049 Madrid, Spain;
| | - Ignacio Torres Aleman
- Achucarro Basque Center for Neuroscience, 48940 Leioa, Spain;
- Biomedical Research Networking Center on Neurodegenerative Diseases (CIBERNED), 28029 Madrid, Spain;
- Ikerbasque, Basque Foundation for Science, 48009 Bilbao, Spain
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Korewo-Labelle D, Karnia MJ, Myślińska D, Kaczor JJ. Supplementation with Vitamin D 3 Protects against Mitochondrial Dysfunction and Loss of BDNF-Mediated Akt Activity in the Hippocampus during Long-Term Dexamethasone Treatment in Rats. Int J Mol Sci 2023; 24:13941. [PMID: 37762245 PMCID: PMC10530487 DOI: 10.3390/ijms241813941] [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: 08/02/2023] [Revised: 09/02/2023] [Accepted: 09/09/2023] [Indexed: 09/29/2023] Open
Abstract
Dexamethasone (DEXA) is a commonly used steroid drug with immunosuppressive and analgesic properties. Unfortunately, long-term exposure to DEXA severely impairs brain function. This study aimed to investigate the effects of vitamin D3 supplementation during chronic DEXA treatment on neurogenesis, mitochondrial energy metabolism, protein levels involved in the BDNF-mediated Akt activity, and specific receptors in the hippocampus. We found reduced serum concentrations of 25-hydroxyvitamin D3 (25(OH)D3), downregulated proBDNF and pAkt, dysregulated glucocorticosteroid and mineralocorticoid receptors, impaired mitochondrial biogenesis, and dysfunctional mitochondria energy metabolism in the DEXA-treated group. In contrast, supplementation with vitamin D3 restored the 25(OH)D3 concentration to a value close to that of the control group. There was an elevation in neurotrophic factor protein level, along with augmented activity of pAkt and increased citrate synthase activity in the hippocampus after vitamin D3 administration in long-term DEXA-treated rats. Our findings demonstrate that vitamin D3 supplementation plays a protective role in the hippocampus and partially mitigates the deleterious effects of long-term DEXA administration. The association between serum 25(OH)D3 concentration and BDNF level in the hippocampus indicates the importance of applying vitamin D3 supplementation to prevent and treat pathological conditions.
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Affiliation(s)
| | | | | | - Jan Jacek Kaczor
- Department of Animal and Human Physiology, Faculty of Biology, University of Gdansk, 80-308 Gdansk, Poland; (D.K.-L.); (M.J.K.); (D.M.)
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Nuñez A, Zegarra-Valdivia J, Fernandez de Sevilla D, Pignatelli J, Torres Aleman I. The neurobiology of insulin-like growth factor I: From neuroprotection to modulation of brain states. Mol Psychiatry 2023; 28:3220-3230. [PMID: 37353586 DOI: 10.1038/s41380-023-02136-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 05/30/2023] [Accepted: 06/13/2023] [Indexed: 06/25/2023]
Abstract
After decades of research in the neurobiology of IGF-I, its role as a prototypical neurotrophic factor is undisputed. However, many of its actions in the adult brain indicate that this growth factor is not only involved in brain development or in the response to injury. Following a three-layer assessment of its role in the central nervous system, we consider that at the cellular level, IGF-I is indeed a bona fide neurotrophic factor, modulating along ontogeny the generation and function of all the major types of brain cells, contributing to sculpt brain architecture and adaptive responses to damage. At the circuit level, IGF-I modulates neuronal excitability and synaptic plasticity at multiple sites, whereas at the system level, IGF-I intervenes in energy allocation, proteostasis, circadian cycles, mood, and cognition. Local and peripheral sources of brain IGF-I input contribute to a spatially restricted, compartmentalized, and timed modulation of brain activity. To better define these variety of actions, we consider IGF-I a modulator of brain states. This definition aims to reconcile all aspects of IGF-I neurobiology, and may provide a new conceptual framework in the design of future research on the actions of this multitasking neuromodulator in the brain.
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Affiliation(s)
- A Nuñez
- Department of Anatomy, Histology and Neurosciences, Universidad Autónoma de Madrid, Madrid, Spain
| | - J Zegarra-Valdivia
- Achucarro Basque Center for Neuroscience, Leioa, Spain
- CIBERNED, Madrid, Spain
- Universidad Señor de Sipán, Chiclayo, Perú
| | - D Fernandez de Sevilla
- Department of Anatomy, Histology and Neurosciences, Universidad Autónoma de Madrid, Madrid, Spain
| | - J Pignatelli
- CIBERNED, Madrid, Spain
- Cajal Institute (CSIC), Madrid, Spain
| | - I Torres Aleman
- Achucarro Basque Center for Neuroscience, Leioa, Spain.
- CIBERNED, Madrid, Spain.
- Ikerbasque Science Foundation, Bilbao, Spain.
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Asgel Z, Kouakou MR, Koller D, Pathak GA, Cabrera-Mendoza B, Polimanti R. Unraveling COVID-19 Relationship with Anxiety Disorders and Symptoms. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.07.21.23293001. [PMID: 37503035 PMCID: PMC10371119 DOI: 10.1101/2023.07.21.23293001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
Background While COVID-19 outcomes are associated with increased anxiety, individuals affected by anxiety disorders are more likely to develop severe COVID-19 outcomes. Methods We used genome-wide data from UK Biobank (up to 420,531 participants), FinnGen Project (up to 329,077 participants), Million Veteran Program (175,163 participants), and COVID-19 Host Genetics Initiative (up to 122,616 cases and 2,475,240 controls) to investigate possible causal effects and shared genetic mechanisms linking COVID-19 outcomes to anxiety disorders and symptoms. Results We observed a strong genetic correlation of anxiety disorder with COVID-19 positive status (rg=0.35, p=2 × 10 -4 ) and COVID-19 hospitalization (rg=0.31, p=7.2 × 10 -4 ). Among anxiety symptoms, "Tense, sore, or aching muscles during worst period of anxiety" was genetically correlated with COVID-19 positive status (rg=0.33, p=0.001), while "Frequent trouble falling or staying asleep during worst period of anxiety" was genetically correlated with COVID-19 hospitalization (rg=0.24, p=0.004). Through a latent causal variable analysis, we observed that COVID-19 outcomes have statistically significant genetic causality proportion (gcp) on anxiety symptoms (e.g., COVID-19 positive status→"Recent easy annoyance or irritability" │gcp│=0.18, p=6.72 × 10 -17 ). Conversely, anxiety disorders appear to have a possible causal effect on COVID-19 (│gcp│=0.38, p=3.17 × 10 -9 ). Additionally, we also identified multiple loci with evidence of local genetic correlation between anxiety and COVID-19. These appear to be related to genetic effects shared with lung function, brain morphology, alcohol and tobacco use, and hematologic parameters. Conclusions This study provided important insights into the relationship between COVID-19 and mental health, differentiating the dynamics linking anxiety disorders to COVID-19 from the effect of COVID-19 on anxiety symptoms.
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Bernaud VE, Koebele SV, Northup-Smith SN, Willeman MN, Barker C, Schatzki-Lumpkin A, Sanchez MV, Bimonte-Nelson HA. Evaluations of memory, anxiety, and the growth factor IGF-1R after post-surgical menopause treatment with a highly selective progestin. Behav Brain Res 2023; 448:114442. [PMID: 37085118 PMCID: PMC11105077 DOI: 10.1016/j.bbr.2023.114442] [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: 08/18/2022] [Revised: 04/16/2023] [Accepted: 04/18/2023] [Indexed: 04/23/2023]
Abstract
Progestogens are a key component of menopausal hormone therapies. While some progestogens can be detrimental to cognition, there is preclinical evidence that progestogens with a strong progesterone-receptor affinity benefit some molecular mechanisms believed to underlie cognitive function. Thus, a progestin that maximizes progesterone-receptor affinity and minimizes affinities to other receptors may be cognitively beneficial. We evaluated segesterone-acetate (SGA), a 19-norprogesterone derivative with a strong progesterone-receptor affinity and no androgenic or estrogenic-receptor activity, hypothesizing that it would enhance cognition. Middle-aged rats underwent Sham or Ovariectomy (Ovx) surgery followed by administration of medroxyprogesterone-acetate (MPA; used as a positive control as we have previously shown MPA-induced cognitive deficits), SGA (low or high dose), or vehicle (one Sham and one Ovx group). Spatial working and reference memory, delayed retention, and anxiety-like behavior were assessed, as were memory- and hormone- related protein assays within the frontal cortex, dorsal hippocampus, and entorhinal cortex. Low-dose SGA impaired spatial working memory, while high-dose SGA had a more extensive detrimental impact, negatively affecting spatial reference memory and delayed retention. Replicating previous findings, MPA impaired spatial reference memory and delayed retention. SGA, but not MPA, alleviated Ovx-induced anxiety-like behaviors. On two working memory measures, IGF-1R expression correlated with better working memory only in rats without hormone manipulation; any hormone manipulation or combination of hormone manipulations used herein altered this relationship. These findings suggest that SGA impairs spatial cognition after surgical menopause, and that surgical menopause with or without progestin administration disrupts relationships between a growth factor critical to neuroplasticity.
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Affiliation(s)
- Victoria E Bernaud
- Department of Psychology, Arizona State University, 950 S. McAllister Ave., Tempe, AZ 85287, USA; Arizona Alzheimer's Consortium, 4745 N 7th St, Phoenix, AZ 85014, USA
| | - Stephanie V Koebele
- Department of Psychology, Arizona State University, 950 S. McAllister Ave., Tempe, AZ 85287, USA; Arizona Alzheimer's Consortium, 4745 N 7th St, Phoenix, AZ 85014, USA
| | - Steven N Northup-Smith
- Department of Psychology, Arizona State University, 950 S. McAllister Ave., Tempe, AZ 85287, USA; Arizona Alzheimer's Consortium, 4745 N 7th St, Phoenix, AZ 85014, USA
| | - Mari N Willeman
- Department of Psychology, Arizona State University, 950 S. McAllister Ave., Tempe, AZ 85287, USA; Arizona Alzheimer's Consortium, 4745 N 7th St, Phoenix, AZ 85014, USA; TGen Institute, 445 N 5th St, Phoenix, AZ 85004, USA
| | - Charlotte Barker
- Department of Psychology, Arizona State University, 950 S. McAllister Ave., Tempe, AZ 85287, USA; Arizona Alzheimer's Consortium, 4745 N 7th St, Phoenix, AZ 85014, USA
| | - Alex Schatzki-Lumpkin
- Department of Psychology, Arizona State University, 950 S. McAllister Ave., Tempe, AZ 85287, USA; Arizona Alzheimer's Consortium, 4745 N 7th St, Phoenix, AZ 85014, USA
| | - Maria Valenzuela Sanchez
- Department of Psychology, Arizona State University, 950 S. McAllister Ave., Tempe, AZ 85287, USA; Arizona Alzheimer's Consortium, 4745 N 7th St, Phoenix, AZ 85014, USA
| | - Heather A Bimonte-Nelson
- Department of Psychology, Arizona State University, 950 S. McAllister Ave., Tempe, AZ 85287, USA; Arizona Alzheimer's Consortium, 4745 N 7th St, Phoenix, AZ 85014, USA.
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Alcantara-Zapata DE, Lucero N, De Gregorio N, Astudillo Cornejo P, Ibarra Villanueva C, Baltodano-Calle MJ, Gonzales GF, Behn C. Women's mood at high altitude. sexual dimorphism in hypoxic stress modulation by the tryptophan-melatonin axis. Front Physiol 2023; 13:1099276. [PMID: 36733695 PMCID: PMC9887123 DOI: 10.3389/fphys.2022.1099276] [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: 11/15/2022] [Accepted: 12/28/2022] [Indexed: 01/18/2023] Open
Abstract
Sexual (and gender)-dimorphism in tolerance to hypobaric hypoxia increasingly matters for a differential surveillance of human activities at high altitude (HA). At low altitudes, the prevalence of anxiety and depression in women has already been found to double when compared with men; it could be expected to even increase on exposure to HA. In purposefully caring for the health of women at HA, the present work explores the potential involvement of the tryptophan (Trp)-melatonin axis in mood changes on exposure to hypobaric hypoxia. The present work highlights some already known anxiogenic effects of HA exposure. Hypoxia and insomnia reduce serotonin (5-HT) availability; the latter defect being expressed as failure of brown adipose tissue (BAT) activation and mood disorders. Rapid eye movement (REM) sleep organization and synapsis restoration that are additionally affected by hypoxia impair memory consolidation. Affective complaints may thus surge, evolving into anxiety and depression. Sex-related differences in neural network organization and hormonal changes during the menstrual cycle, and certainly also during the life cycle, underscore the possibility of 5-HT-related mood alterations, particularly in women on HA exposure. The mean brain rate of 5-HT synthesis at sea level is already 1.5-fold higher in males than in females. sexual dimorphism also evidences the overexpression effects of SERT, a 5-HT transporter protein. Gonadal and thyroid hormones, as influenced by HA exposure, further modulate 5-HT availability and its effects in women. Besides caring for adequate oxygenation and maintenance of one's body core temperature, special precautions concerning women sojourning at HA should include close observations of hormonal cycles and, perhaps, also trials with targeted antidepressants.
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Affiliation(s)
- D. E. Alcantara-Zapata
- Laboratorio de Endocrinología y Reproducción, Laboratorios de Investigación y Desarrollo (LID), Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Lima, Perú
| | - N. Lucero
- Occupational Health Program, School of Public Health, University of Chile, Santiago, Chile
| | - N. De Gregorio
- Laboratory of Extreme Environments, Department of Physiology and Biophysics, Biomedical Science Institute (ICBM), Faculty of Medicine, University of Chile, Santiago, Chile
| | - P. Astudillo Cornejo
- Occupational Ergonomics Program, Department of Kinesiology, University of Atacama, Copiapó, Chile
| | - C. Ibarra Villanueva
- Occupational Ergonomics Program, Department of Kinesiology, University of Atacama, Copiapó, Chile
| | - M. J. Baltodano-Calle
- Laboratorio de Endocrinología y Reproducción, Laboratorios de Investigación y Desarrollo (LID), Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Lima, Perú
| | - G. F. Gonzales
- Laboratorio de Endocrinología y Reproducción, Laboratorios de Investigación y Desarrollo (LID), Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Lima, Perú,High Altitude Research Institute, Universidad Peruana Cayetano Heredia, Lima, Perú
| | - C. Behn
- Laboratory of Extreme Environments, Department of Physiology and Biophysics, Biomedical Science Institute (ICBM), Faculty of Medicine, University of Chile, Santiago, Chile,Faculty of Medicine, University of Atacama, Copiapó, Chile,*Correspondence: C. Behn,
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Yamanashi H, Akabame S, Miyata J, Honda Y, Nonaka F, Shimizu Y, Nakamichi S, Kawashiri SY, Tamai M, Arima K, Kawakami A, Aoyagi K, Maeda T. Association between Epstein-Barr virus serological reactivation and psychological distress: a cross-sectional study of Japanese community-dwelling older adults. Aging (Albany NY) 2022; 14:8258-8269. [DOI: 10.18632/aging.204345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 10/13/2022] [Indexed: 11/25/2022]
Affiliation(s)
- Hirotomo Yamanashi
- Department of General Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
- Department of Clinical Medicine, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
| | - Shogo Akabame
- Department of General Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
- Department of Clinical Medicine, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
| | - Jun Miyata
- Department of Island and Community Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Yukiko Honda
- Department of Community Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Fumiaki Nonaka
- Department of Community Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Yuji Shimizu
- Department of Community Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Seiko Nakamichi
- Department of General Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Shin-Ya Kawashiri
- Department of Community Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
- Department of Immunology and Rheumatology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Mami Tamai
- Department of Immunology and Rheumatology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Kazuhiko Arima
- Department of Public Health, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Atsushi Kawakami
- Department of Immunology and Rheumatology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Kiyoshi Aoyagi
- Department of Public Health, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Takahiro Maeda
- Department of General Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
- Department of Island and Community Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
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11
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Sathyanesan M, Newton SS. Antidepressant-like effects of trophic factor receptor signaling. Front Mol Neurosci 2022; 15:958797. [PMID: 36081576 PMCID: PMC9445421 DOI: 10.3389/fnmol.2022.958797] [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: 06/01/2022] [Accepted: 07/25/2022] [Indexed: 11/13/2022] Open
Abstract
A significant body of research has demonstrated that antidepressants regulate neurotrophic factors and that neurotrophins themselves are capable of independently producing antidepressant-like effects. While brain derived neurotrophic factor (BDNF) remains the best studied molecule in this context, there are several structurally diverse trophic factors that have shown comparable behavioral effects, including basic fibroblast growth factor (FGF-2), insulin-like growth factor 1 (IGF-1) and vascular endothelial growth factor (VEGF). In this review we discuss the structural and biochemical signaling aspects of these neurotrophic factors with antidepressant activity. We also include a discussion on a cytokine molecule erythropoietin (EPO), widely known and prescribed as a hormone to treat anemia but has recently been shown to function as a neurotrophic factor in the central nervous system (CNS).
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12
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Chen W, Cai W, Hoover B, Kahn CR. Insulin action in the brain: cell types, circuits, and diseases. Trends Neurosci 2022; 45:384-400. [PMID: 35361499 PMCID: PMC9035105 DOI: 10.1016/j.tins.2022.03.001] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 02/10/2022] [Accepted: 03/03/2022] [Indexed: 10/18/2022]
Abstract
Since its discovery over 100 years ago, insulin has been recognized as a key hormone in control of glucose homeostasis. Deficiencies of insulin signaling are central to diabetes and many other disorders. The brain is among the targets of insulin action, and insulin resistance is a major contributor to many diseases, including brain disorders. Here, we summarize key roles of insulin action in the brain and how this involves different brain cell types. Disordered brain insulin signaling can also contribute to neuropsychiatric diseases, affecting brain circuits involved in mood and cognition. Understanding of insulin signaling in different brain cell types/circuits and how these are altered in disease may lead to the development of new therapeutic approaches to these challenging disorders.
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13
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Insulin-like growth factor I mitigates post-traumatic stress by inhibiting AMP-kinase in orexin neurons. Mol Psychiatry 2022; 27:2182-2196. [PMID: 35115701 PMCID: PMC9126821 DOI: 10.1038/s41380-022-01442-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 12/14/2021] [Accepted: 01/11/2022] [Indexed: 12/21/2022]
Abstract
Maladaptive coping behaviors are probably involved in post-traumatic stress disorders (PTSD), but underlying mechanisms are incompletely understood. We now report that mice lacking functional insulin-like growth factor I (IGF-I) receptors in orexin neurons of the lateral hypothalamus (Firoc mice) are unresponsive to the anxiolytic actions of IGF-I and develop PTSD-like behavior that is ameliorated by inhibition of orexin neurons. Conversely, systemic IGF-I treatment ameliorated PTSD-like behavior in a wild-type mouse model of PTSD (PTSD mice). Further, systemic IGF-I modified the GABA/Glutamate synaptic structure in orexin neurons of naïve wild-type mice by increasing the dephosphorylation of GABA(B) receptor subunit through inhibition of AMP-kinase (AMPK). Significantly, pharmacological inhibition of AMPK mimicked IGF-I, normalizing fear behavior in PTSD mice. Thus, we suggest that IGF-I enables coping behaviors by balancing E/I input onto orexin neurons in a context-dependent manner. These observations provide a novel therapeutic approach to PTSD through modulation of AMPK.
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14
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Gene expression correlates of advanced epigenetic age and psychopathology in postmortem cortical tissue. Neurobiol Stress 2021; 15:100371. [PMID: 34458511 PMCID: PMC8377489 DOI: 10.1016/j.ynstr.2021.100371] [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] [Received: 12/17/2020] [Revised: 07/02/2021] [Accepted: 07/23/2021] [Indexed: 11/22/2022] Open
Abstract
Psychiatric stress has been associated with accelerated epigenetic aging (i.e., when estimates of cellular age based on DNA methylation exceed chronological age) in both blood and brain tissue. Little is known about the downstream biological effects of accelerated epigenetic age on gene expression. In this study we examined associations between DNA methylation-derived estimates of cellular age that range from decelerated to accelerated relative to chronological age (“DNAm age residuals”) and transcriptome-wide gene expression. This was examined using tissue from three post-mortem cortical regions (ventromedial and dorsolateral prefrontal cortex and motor cortex, n = 97) from the VA National PTSD Brain Bank. In addition, we examined how posttraumatic stress disorder (PTSD) and alcohol-use disorders (AUD) moderated the association between DNAm age residuals and gene expression. Transcriptome-wide results across brain regions, psychiatric diagnoses, and cohorts (full sample and male and female subsets) revealed experiment-wide differential expression of 11 genes in association with PTSD or AUD in interaction with DNAm age residuals. This included the inflammation-related genes IL1B, RCOR2, and GCNT1. Candidate gene class analyses and gene network enrichment analyses further supported differential expression of inflammation/immune gene networks as well as glucocorticoid, circadian, and oxidative stress-related genes. Gene co-expression network modules suggested enrichment of myelination related processes and oligodendrocyte enrichment in association with DNAm age residuals in the presence of psychopathology. Collectively, results suggest that psychiatric stress accentuates the association between advanced epigenetic age and expression of inflammation genes in the brain. This highlights the role of inflammatory processes in the pathophysiology of accelerated cellular aging and suggests that inflammatory pathways may link accelerated cellular aging to premature disease onset and neurodegeneration, particularly in stressed populations. This suggests that anti-inflammatory interventions may be an important direction to pursue in evaluating ways to prevent or delay cellular aging and increase resilience to diseases of aging.
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15
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Riat A, Suwandi A, Ghashang SK, Buettner M, Eljurnazi L, Grassl GA, Gutenbrunner C, Nugraha B. Ramadan Fasting in Germany (17-18 h/Day): Effect on Cortisol and Brain-Derived Neurotrophic Factor in Association With Mood and Body Composition Parameters. Front Nutr 2021; 8:697920. [PMID: 34458302 PMCID: PMC8387581 DOI: 10.3389/fnut.2021.697920] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 06/07/2021] [Indexed: 12/22/2022] Open
Abstract
Ramadan fasting (RF) is a type of diurnal intermittent fasting. Previous studies reported the benefits of RF in healthy subjects on mood and health related to quality of life (QoL). Cortisol and brain-derived neurotrophic factor (BDNF) have been shown to play a role in mood, body composition parameters, and health-related QoL. This study aimed at elucidating the mechanism of the benefit of RF, particularly cortisol and BNDF and their association with mood and QoL. Insulin growth factor-1 (IGF-1), interleukin (IL)-8, matrix metalloproteinase (MMP)-9, and myoglobin were determined. Thirty-four healthy men and women were recruited. Serum from peripheral venous blood samples was collected at five time points: 1 week before RF (T1); mid of RF (T2), last days of RF (T3), 1 week after RF (T4), and 1 month after RF (T5). The amounts of biological mediators in the serum samples were determined by enzyme-linked immunosorbent assay (ELISA) and Luminex assays. BDNF and cortisol significantly decreased at T3 (p < 0.05) and T4 (p < 0.001) compared to T1, respectively. It seems the benefits of RF for mood-related symptoms are mediated by different biological mediators, particularly cortisol and BDNF.
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Affiliation(s)
- Amin Riat
- Department of Rehabilitation Medicine, Hannover Medical School, Hannover, Germany
| | - Abdulhadi Suwandi
- Institute of Medical Microbiology and Hospital Epidemiology, Hannover Medical School and German Center for Infection Research (DZIF), Hannover, Germany.,Institute of Cell Biochemistry, Center of Biochemistry, Hannover Medical School, Hannover, Germany
| | - Samaneh Khoshandam Ghashang
- Department of Rehabilitation Medicine, Hannover Medical School, Hannover, Germany.,Department of Dermatology, Johannes Wesling Medical Centre, Minden, Germany
| | - Manuela Buettner
- Institute for Laboratory Animal Science, Hannover Medical School, Hannover, Germany
| | - Luqman Eljurnazi
- Department of Rehabilitation Medicine, Hannover Medical School, Hannover, Germany
| | - Guntram A Grassl
- Institute of Medical Microbiology and Hospital Epidemiology, Hannover Medical School and German Center for Infection Research (DZIF), Hannover, Germany
| | | | - Boya Nugraha
- Department of Rehabilitation Medicine, Hannover Medical School, Hannover, Germany
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16
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Herrera ML, Bandín S, Champarini LG, Hereñú CB, Bellini MJ. Intramuscular insulin-like growth factor-1 gene therapy modulates reactive microglia after traumatic brain injury. Brain Res Bull 2021; 175:196-204. [PMID: 34339780 DOI: 10.1016/j.brainresbull.2021.07.023] [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: 10/28/2020] [Revised: 06/07/2021] [Accepted: 07/27/2021] [Indexed: 12/23/2022]
Abstract
Reactive gliosis is a key feature and an important pathophysiological mechanism underlying chronic neurodegeneration following traumatic brain injury (TBI). In this study, we have explored the effects of intramuscular IGF-1 gene therapy on reactive gliosis and functional outcome after an injury of the cerebral cortex. Young adult male rats were intramuscularly injected with a recombinant adenoviral construct harboring the cDNA of human IGF-1 (RAd-IGF1), with a control vector expressing green fluorescent protein (RAd-GFP) or PBS as control. Three weeks after the intramuscular injections of adenoviral vectors, animals were subjected to a unilateral penetrating brain injury. The data revealed that RAd-IGF1 gene therapy significantly increased serum IGF1 levels and improved working memory performance after one week of TBI as compared to PBS or RAd-GFP lesioned animals. At the same time, when we analyzed the effects of therapy on glial scar formation, the treatment with RAd-IGF1 did not modify the number of glial fibrillary acidic protein (GFAP) positive cells, but we observed a decrease in vimentin immunoreactive astrocytes at 7 days post-lesion in the injured hemisphere compared to RAd-GFP group. Moreover, IGF-1 gene therapy reduced the number of Iba1+ cells with reactive phenotype and the number of MHCII + cells in the injured hemisphere. These results suggest that intramuscular IGF-1 gene therapy may represent a new approach to prevent traumatic brain injury outcomes in rats.
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Affiliation(s)
- Macarena Lorena Herrera
- Universidad Nacional de Córdoba, Facultad de Ciencias Químicas, Departamento de Farmacología, Córdoba, Argentina; Instituto de Farmacología Experimental de Córdoba (IFEC-CONICET), Córdoba, Argentina; Universidad Nacional de La Plata, Facultad de Ciencias Médicas, Buenos Aires, Argentina; Instituto de Investigaciones Bioquímicas de La Plata (INIBIOLP-CONICET), La Plata, Argentina
| | - Sandra Bandín
- Instituto Cajal, Consejo Superior de Investigaciones Científicas (CSIC), 28002 Madrid, Spain
| | - Leandro Gabriel Champarini
- Universidad Nacional de Córdoba, Facultad de Ciencias Químicas, Departamento de Farmacología, Córdoba, Argentina; Instituto de Farmacología Experimental de Córdoba (IFEC-CONICET), Córdoba, Argentina
| | - Claudia Beatriz Hereñú
- Universidad Nacional de Córdoba, Facultad de Ciencias Químicas, Departamento de Farmacología, Córdoba, Argentina; Instituto de Farmacología Experimental de Córdoba (IFEC-CONICET), Córdoba, Argentina
| | - Maria Jose Bellini
- Universidad Nacional de La Plata, Facultad de Ciencias Médicas, Buenos Aires, Argentina; Instituto de Investigaciones Bioquímicas de La Plata (INIBIOLP-CONICET), La Plata, Argentina.
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17
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Wainberg M, Kloiber S, Diniz B, McIntyre RS, Felsky D, Tripathy SJ. Clinical laboratory tests and five-year incidence of major depressive disorder: a prospective cohort study of 433,890 participants from the UK Biobank. Transl Psychiatry 2021; 11:380. [PMID: 34234104 PMCID: PMC8263616 DOI: 10.1038/s41398-021-01505-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 06/16/2021] [Accepted: 06/24/2021] [Indexed: 11/23/2022] Open
Abstract
Prevention of major depressive disorder (MDD) is a public health priority. Identifying biomarkers of underlying biological processes that contribute to MDD onset may help address this public health need. This prospective cohort study encompassed 383,131 white British participants from the UK Biobank with no prior history of MDD, with replication in 50,759 participants of other ancestries. Leveraging linked inpatient and primary care records, we computed adjusted odds ratios for 5-year MDD incidence among individuals with values below or above the 95% confidence interval (<2.5th or >97.5th percentile) on each of 57 laboratory measures. Sensitivity analyses were performed across multiple percentile thresholds and in comparison to established reference ranges. We found that indicators of liver dysfunction were associated with increased 5-year MDD incidence (even after correction for alcohol use and body mass index): elevated alanine aminotransferase (AOR = 1.35, 95% confidence interval [1.16, 1.58]), aspartate aminotransferase (AOR = 1.39 [1.19, 1.62]), and gamma glutamyltransferase (AOR = 1.52 [1.31, 1.76]) as well as low albumin (AOR = 1.28 [1.09, 1.50]). Similar observations were made with respect to endocrine dysregulation, specifically low insulin-like growth factor 1 (AOR = 1.34 [1.16, 1.55]), low testosterone among males (AOR = 1.60 [1.27, 2.00]), and elevated glycated hemoglobin (HbA1C; AOR = 1.23 [1.05, 1.43]). Markers of renal impairment (i.e. elevated cystatin C, phosphate, and urea) and indicators of anemia and macrocytosis (i.e. red blood cell enlargement) were also associated with MDD incidence. While some immune markers, like elevated white blood cell and neutrophil count, were associated with MDD (AOR = 1.23 [1.07, 1.42]), others, like elevated C-reactive protein, were not (AOR = 1.04 [0.89, 1.22]). The 30 significant associations validated as a group in the multi-ancestry replication cohort (Wilcoxon p = 0.0005), with a median AOR of 1.235. Importantly, all 30 significant associations with extreme laboratory test results were directionally consistent with an increased MDD risk. In sum, markers of liver and kidney dysfunction, growth hormone and testosterone deficiency, innate immunity, anemia, macrocytosis, and insulin resistance were associated with MDD incidence in a large community-based cohort. Our results support a contributory role of diverse biological processes to MDD onset.
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Affiliation(s)
- Michael Wainberg
- Centre for Addiction and Mental Health, Toronto, ON, Canada
- Krembil Centre for Neuroinformatics, Centre for Addiction and Mental Health, Toronto, ON, Canada
| | - Stefan Kloiber
- Centre for Addiction and Mental Health, Toronto, ON, Canada
- Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada
- Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - Breno Diniz
- Centre for Addiction and Mental Health, Toronto, ON, Canada
- Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada
- Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - Roger S McIntyre
- Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada
- Department of Psychiatry, University of Toronto, Toronto, ON, Canada
- Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, ON, Canada
| | - Daniel Felsky
- Centre for Addiction and Mental Health, Toronto, ON, Canada
- Krembil Centre for Neuroinformatics, Centre for Addiction and Mental Health, Toronto, ON, Canada
- Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada
- Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - Shreejoy J Tripathy
- Centre for Addiction and Mental Health, Toronto, ON, Canada.
- Krembil Centre for Neuroinformatics, Centre for Addiction and Mental Health, Toronto, ON, Canada.
- Institute of Medical Sciences, University of Toronto, Toronto, ON, Canada.
- Department of Psychiatry, University of Toronto, Toronto, ON, Canada.
- Department of Physiology, University of Toronto, Toronto, ON, Canada.
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18
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Corne R, Besson V, Ait Si Slimane S, Coutan M, Palhas MLC, Shen FX, Marchand-Leroux C, Ogier M, Mongeau R. Insulin-like Growth Factors may be Markers of both Traumatic Brain Injury and Fear-Related Stress. Neuroscience 2021; 466:205-221. [PMID: 33895341 DOI: 10.1016/j.neuroscience.2021.04.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 04/08/2021] [Accepted: 04/15/2021] [Indexed: 10/21/2022]
Abstract
Insulin-like growth factors (IGF) are potent neurotrophic and neurorepair factors that were recently proposed as biomarkers of traumatic brain injury (TBI) and associated psychiatric comorbidities, in particular post-traumatic stress disorder (PSTD). We tested the hypothesis that the IGF system is differentially deregulated in the acute and early chronic stages of TBI, and under acute stress. Plasma and brain IGF1 and IGF2 levels were evaluated in mice 3 weeks and 3 days after a controlled cortical impact (CCI)-induced mild-to-moderate TBI. The effects of conditioned fear on IGF levels and its interaction with TBI (TBI followed, 3 weeks later, by fear-inducing procedures) were also evaluated. In the plasma, IGF1 decreased 3 weeks post-TBI only (-9%), whereas IGF2 remained unaffected. In the brain, IGF1 increased only in the cortex and hippocampus at 3 weeks post-TBI (up to +650%). At 3 days, surpringly, this increase was more diffuse and more important in sham (craniotomized) animals. Additionally, IGF2 immunostaining in brain ventricles was reorganized in TBI animals at both post-TBI stages. Conditioned fear exposure did not influence the effects of early chronic TBI on plasma IGF1 levels, but reduced plasma IGF2 (-6%) levels. It also dampened the effects of TBI on brain IGF systems, but brain IGF1 level and IGF2 tissue distribution remained statistically different from controls under these conditions. In co-exposed animals, DNA methylation increased at the hippocampal Igf1 gene promoter. These results show that blood IGF1 and IGF2 are most reduced in the early chronic phase of TBI and after exposure to a stressful event, and that the brain IGF system is up-regulated after TBI, and more so in the acute phase.
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Affiliation(s)
- Rémi Corne
- EA4475 Pharmacologie de la Circulation Cérébrale, Université Paris Descartes, 4 avenue de l'Observatoire, 75006 Paris, France
| | - Valérie Besson
- EA4475 Pharmacologie de la Circulation Cérébrale, Université Paris Descartes, 4 avenue de l'Observatoire, 75006 Paris, France; UMR_S1144 Optimisation Thérapeutique en Neuropsychopharmacologie, Université Paris Descartes, 4 avenue de l'Observatoire, 75006 Paris, France
| | - Sofiane Ait Si Slimane
- EA4475 Pharmacologie de la Circulation Cérébrale, Université Paris Descartes, 4 avenue de l'Observatoire, 75006 Paris, France
| | - Mathieu Coutan
- Institut de Recherche Biomédicale de Armées, 1 place du Général Valérie André, 91223 Brétigny sur Orge Cedex, France
| | - Marta L C Palhas
- EA4475 Pharmacologie de la Circulation Cérébrale, Université Paris Descartes, 4 avenue de l'Observatoire, 75006 Paris, France
| | - Fang Xue Shen
- EA4475 Pharmacologie de la Circulation Cérébrale, Université Paris Descartes, 4 avenue de l'Observatoire, 75006 Paris, France
| | - Catherine Marchand-Leroux
- EA4475 Pharmacologie de la Circulation Cérébrale, Université Paris Descartes, 4 avenue de l'Observatoire, 75006 Paris, France; UMR_S1144 Optimisation Thérapeutique en Neuropsychopharmacologie, Université Paris Descartes, 4 avenue de l'Observatoire, 75006 Paris, France
| | - Michaël Ogier
- Institut de Recherche Biomédicale de Armées, 1 place du Général Valérie André, 91223 Brétigny sur Orge Cedex, France
| | - Raymond Mongeau
- EA4475 Pharmacologie de la Circulation Cérébrale, Université Paris Descartes, 4 avenue de l'Observatoire, 75006 Paris, France; CNRS ERL 3649 T3S-1124 - UMR-S 1124 - Addictions, Pharmacology and Therapy, Université Paris Descartes, 45, rue des Saint-Pères, 75006 Paris, France.
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19
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Taroza S, Rastenytė D, Burkauskas J, Podlipskytė A, Kažukauskienė N, Patamsytė V, Mickuvienė N. Deiodinases, organic anion transporter polypeptide polymorphisms and symptoms of anxiety and depression after ischemic stroke. J Stroke Cerebrovasc Dis 2020; 29:105040. [PMID: 32807452 DOI: 10.1016/j.jstrokecerebrovasdis.2020.105040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 05/29/2020] [Accepted: 06/07/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Emotional disturbances, such as anxiety and depression are common after acute ischemic stroke (AIS). Individual variation in emotional outcome is strongly influenced by genetic factors. One of pituitary axis, is the hypothalamic-pituitary-thyroid axis, a critical regulator of post-stroke recovery, suggesting that allelic variants in thyroid hormone (TH) signaling regulation can influence stroke outcome. AIM To determine associations between AIS emotional outcome and allelic variants of the TH metabolizing enzymes 1-3 type deiodinase (DIO1-3) and the membrane transporting organic anion polypeptide 1C1 (OATP1C1). METHODS Eligible AIS patients from Lithuania (n=168) were genotyped for ten DIO1-3 and OATP1C1 single nucleotide polymorphisms (SNP): DIO1 rs12095080-A/G, rs11206244-C/T, and rs2235544-A/C; DIO2 rs225014-T/C and rs225015-G/A; DIO3 rs945006-T/G; OATP1C1 rs974453-G/A, rs10444412-T/C, rs10770704-C/T, and rs1515777-A/G. Emotional outcome was evaluated using the Hospital Anxiety and Depression Scale at discharge from the neurology department after experienced index AIS. RESULTS After adjustment for potential confounders, the major allelic (wild-type) DIO1-rs12095080 genotype (AA) was associated with higher odds ratio of anxiety symptoms (OR = 5.16; 95% CI: 1.04-25.58; p = 0.045), conversely, DIO1-rs11206244 wild-type genotype (CC) and wild-type OATP1C1-rs1515777 allele containing the genotypes (AA + AG) were associated with lower odds ratio of symptoms of anxiety (OR = 0.37; 95% CI: 0.14-0.96; p = 0.041 and OR = 0.30; 95% CI: 0.12-0.76; p = 0.011, respectively). Wild-type OATP1C1-rs974453 genotype (GG) was associated with higher odds ratio of symptoms of depression (OR = 2.73; 95% CI: 1.04-7.12; p = 0.041). CONCLUSION Allelic variants in thyroid axis genes may predict emotional outcomes of AIS.
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Affiliation(s)
- Saulius Taroza
- Laboratory of Behavioural Medicine (Palanga), Neuroscience Institute, Lithuanian University of Health Sciences, Lithuania.
| | - Daiva Rastenytė
- Department of Neurology, Medical Academy, Lithuanian University of Health Sciences, Kaunas, Lithuania.
| | - Julius Burkauskas
- Laboratory of Behavioural Medicine (Palanga), Neuroscience Institute, Lithuanian University of Health Sciences, Lithuania.
| | - Aurelija Podlipskytė
- Laboratory of Behavioural Medicine (Palanga), Neuroscience Institute, Lithuanian University of Health Sciences, Lithuania.
| | - Nijolė Kažukauskienė
- Laboratory of Behavioural Medicine (Palanga), Neuroscience Institute, Lithuanian University of Health Sciences, Lithuania.
| | - Vaiva Patamsytė
- Institute of Cardiology, Medical Academy, Lithuanian University of Health Sciences, Kaunas, Lithuania.
| | - Narseta Mickuvienė
- Laboratory of Behavioural Medicine (Palanga), Neuroscience Institute, Lithuanian University of Health Sciences, Lithuania.
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20
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Liu Z, Wang Y, Pan S, Zhang Y, Zhu H, Liu Y, Zhu L, Zhang J. Platelets-released insulin-like growth factor 1 is correlated with anxiety in myocardial infarction. Biochem Biophys Res Commun 2019; 520:441-448. [DOI: 10.1016/j.bbrc.2019.10.042] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Accepted: 10/03/2019] [Indexed: 11/30/2022]
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21
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Chung YS, Poppe A, Novotny S, Epperson CN, Kober H, Granger DA, Blumberg HP, Ochsner K, Gross JJ, Pearlson G, Stevens MC. A preliminary study of association between adolescent estradiol level and dorsolateral prefrontal cortex activity during emotion regulation. Psychoneuroendocrinology 2019; 109:104398. [PMID: 31394491 PMCID: PMC6842698 DOI: 10.1016/j.psyneuen.2019.104398] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 07/24/2019] [Accepted: 07/24/2019] [Indexed: 12/19/2022]
Abstract
Non-human primate models have been useful in clarifying estradiol's role in cognitive processing. These animal studies indicate estradiol impacts cognitive processes supported by regions within dorsolateral prefrontal cortex (DLPFC). Although human functional neuroimaging studies have begun to find similar relationships between estradiol in women for some forms of 'cold' cognitive control, to date no studies have examined the relationship between estradiol and DLPFC function in the context of active attempts to regulate one's emotions. Here, we asked whether peripheral 17-beta estradiol levels in adolescent girls in different pubertal developmental stages (age = 14.9 years ± 1.74) were related to engagement of DLPFC regions during the use of a cognitive strategy for regulating emotion known as reappraisal using functional Magnetic Resonance Imaging. Findings indicated that higher estradiol levels predicted greater DLPFC activity during the down-regulation of negative emotion using reappraisal. This is the first report of an association between estradiol level and DLPFC activity during cognitive reappraisal of negative emotion. The study suggests a possibility that estradiol might positively contribute to regulatory function of a cortical system important for emotional experiences.
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Affiliation(s)
- Yu Sun Chung
- Olin Neuropsychiatry Research Center, 200 Retreat Avenue, Whitehall Building- Institute of Living, Hartford, CT, 06106, USA; Department of Psychology and Neuroscience, Duke University.
| | - Andrew Poppe
- Olin Neuropsychiatry Research Center, 200 Retreat Avenue, Whitehall Building- Institute of Living, Hartford, CT, 06106, USA; Department of Psychology and Neuroscience, Duke University
| | - Stephanie Novotny
- Olin Neuropsychiatry Research Center, 200 Retreat Avenue, Whitehall Building- Institute of Living, Hartford, CT, 06106, USA; Department of Psychology and Neuroscience, Duke University
| | - C. Neill Epperson
- Department of Psychiatry, University of Colorado School of Medicine, Aurora, CO, USA
| | - Hedy Kober
- Department of Psychiatry, Yale University, New Haven, CT, USA
| | - Douglas A. Granger
- Institute for Interdisciplinary Salivary Bioscience Research, University of California at Irvine, Irvine CA; School of Medicine, Bloomberg School of Public Health, and School of Nursing, Johns Hopkins University, Baltimore, MD, USA
| | | | - Kevin Ochsner
- Department of Psychology, Columbia University, New York, NY, USA
| | - James J. Gross
- Department of Psychology, Stanford University, Stanford, CA, USA
| | - Godfrey Pearlson
- Olin Neuropsychiatry Research Center, 200 Retreat Avenue, Whitehall Building- Institute of Living, Hartford, CT, 06106, USA; Department of Psychology and Neuroscience, Duke University.,Department of Psychiatry, Yale University, New Haven, CT, USA
| | - Michael C. Stevens
- Olin Neuropsychiatry Research Center, 200 Retreat Avenue, Whitehall Building- Institute of Living, Hartford, CT, 06106, USA; Department of Psychology and Neuroscience, Duke University.,Department of Psychiatry, Yale University, New Haven, CT, USA
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22
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Savaheli S, Ahmadiani A. Obsessive-compulsive disorder and growth factors: A comparative review. Behav Brain Res 2019; 372:111967. [PMID: 31136772 DOI: 10.1016/j.bbr.2019.111967] [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] [Received: 02/27/2019] [Revised: 04/22/2019] [Accepted: 05/20/2019] [Indexed: 01/19/2023]
Abstract
The goal of this article is to clarify the role of various growth factors in the establishment and progression of obsessive-compulsive disorder (OCD). OCD is a chronic mental disorder with recurrent intrusive thoughts and/or repetitive compulsive behaviors that increase during stressful periods. Growth and neurotrophic factors may be contributing factors in the pathophysiology of OCD. Many of them are synthesized and released within the central nervous system and act as trophic agents in neurons; some of them are involved in brain growth, development, neurogenesis, myelination and plasticity, while others take part in the protection of the nervous system following brain injuries. This paper attempts to identify all articles investigating the relationship between OCD and neurotrophic and growth factors, in both animal and human studies, with a focus on adult brain studies. Based on the PubMed and Scopus and Science Direct search tools, the available articles and studies are reviewed. Out of 230 records in total, the ones related to our review topic were taken into account to further understand the pathophysiological mechanism(s) of OCD, providing methods to improve its symptoms via the modification of neurotrophins and growth factor imbalances.
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Affiliation(s)
- Sara Savaheli
- Neuroscience Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Abolhassan Ahmadiani
- Neuroscience Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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23
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Higarza SG, Arboleya S, Gueimonde M, Gómez-Lázaro E, Arias JL, Arias N. Neurobehavioral dysfunction in non-alcoholic steatohepatitis is associated with hyperammonemia, gut dysbiosis, and metabolic and functional brain regional deficits. PLoS One 2019; 14:e0223019. [PMID: 31539420 PMCID: PMC6754158 DOI: 10.1371/journal.pone.0223019] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 09/11/2019] [Indexed: 12/11/2022] Open
Abstract
Non-alcoholic steatohepatitis (NASH) is one of the most prevalent diseases worldwide. While it has been suggested to cause nervous impairment, its neurophysiological basis remains unknown. Therefore, the aim of this study is to unravel the effects of NASH, through the interrelationship of liver, gut microbiota, and nervous system, on the brain and human behavior. To this end, 40 Sprague-Dawley rats were divided into a control group that received normal chow and a NASH group that received a high-fat, high-cholesterol diet. Our results show that 14 weeks of the high-fat, high-cholesterol diet induced clinical conditions such as NASH, including steatosis and increased levels of ammonia. Rats in the NASH group also demonstrated evidence of gut dysbiosis and decreased levels of short-chain fatty acids in the gut. This may explain the deficits in cognitive ability observed in the NASH group, including their depressive-like behavior and short-term memory impairment characterized in part by deficits in social recognition and prefrontal cortex-dependent spatial working memory. We also reported the impact of this NASH-like condition on metabolic and functional processes. Brain tissue demonstrated lower levels of metabolic brain activity in the prefrontal cortex, thalamus, hippocampus, amygdala, and mammillary bodies, accompanied by a decrease in dopamine levels in the prefrontal cortex and cerebellum and a decrease in noradrenalin in the striatum. In this article, we emphasize the important role of ammonia and gut-derived bacterial toxins in liver-gut-brain neurodegeneration and discuss the metabolic and functional brain regional deficits and behavioral impairments in NASH.
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Affiliation(s)
- Sara G. Higarza
- Institute of Neurosciences of the Principality of Asturias (INEUROPA), Asturias, Spain
- Laboratory of Neuroscience, Department of Psychology, University of Oviedo, Oviedo, Asturias, Spain
| | - Silvia Arboleya
- Department of Microbiology and Biochemistry of Dairy Products, Institute of Dairy Products of the Principality of Asturias (IPLA-CSIC), Asturias, Spain
| | - Miguel Gueimonde
- Department of Microbiology and Biochemistry of Dairy Products, Institute of Dairy Products of the Principality of Asturias (IPLA-CSIC), Asturias, Spain
| | - Eneritz Gómez-Lázaro
- Department of Basic Psychological Processes and their Development, Basque Country University, San Sebastián, Basque Country, Spain
| | - Jorge L. Arias
- Institute of Neurosciences of the Principality of Asturias (INEUROPA), Asturias, Spain
- Laboratory of Neuroscience, Department of Psychology, University of Oviedo, Oviedo, Asturias, Spain
| | - Natalia Arias
- Institute of Neurosciences of the Principality of Asturias (INEUROPA), Asturias, Spain
- Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, England, United Kingdom
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24
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Zegarra-Valdivia JA, Santi A, Fernández de Sevilla ME, Nuñez A, Torres Aleman I. Serum Insulin-Like Growth Factor I Deficiency Associates to Alzheimer’s Disease Co-Morbidities. J Alzheimers Dis 2019; 69:979-987. [DOI: 10.3233/jad-190241] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
| | - Andrea Santi
- Cajal Institute (CSIC), Madrid, Spain
- CIBERNED, Spain
| | | | - Angel Nuñez
- Department of Neurosciences, School of Medicine, UAM, Madrid, Spain
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25
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Munive V, Zegarra-Valdivia JA, Herrero-Labrador R, Fernandez AM, Aleman IT. Loss of the interaction between estradiol and insulin-like growth factor I in brain endothelial cells associates to changes in mood homeostasis during peri-menopause in mice. Aging (Albany NY) 2019; 11:174-184. [PMID: 30636168 PMCID: PMC6339786 DOI: 10.18632/aging.101739] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 12/19/2018] [Indexed: 01/21/2023]
Abstract
We recently reported that exercise increases resilience to stress in young female mice. Underlying mechanisms include an interaction of the ovarian hormone estradiol (E2) with insulin-like growth factor I (IGF-I), and an increase in the hippocampal levels of the latter. Since changes in mood regulation during aging may contribute to increasing incidence of affective disorders at older age, we determined whether the protective actions of exercise are maintained at later ages. We found that during peri-menopause, exercise no longer improves resilience to stress and even becomes anxiogenic. Furthermore, the interaction seen in young females between the E2 α receptor (ERα) and the IGF-I receptor (IGF-IR) is lost at middle-age. In addition, E2 no longer induces IGF-I uptake by brain endothelial cells, and consequently, hippocampal IGF-I levels do not increase. Treatment of middle-aged females with an ERα agonist did not recover the positive actions of exercise. Collectively, these data indicate that the loss of action of exercise during peri-menopause may be related to a loss of the interaction of IGF-IR with ERα in brain endothelial cells that cannot be ameliorated by estrogen therapy. Changes in regulation of mood by physical activity may contribute to increased appearance of affective disorders along age.
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Affiliation(s)
- Victor Munive
- Cajal Institute, Madrid, Spain.,Ciberned, Madrid, Spain
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26
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Kelly RR, McDonald LT, Jensen NR, Sidles SJ, LaRue AC. Impacts of Psychological Stress on Osteoporosis: Clinical Implications and Treatment Interactions. Front Psychiatry 2019; 10:200. [PMID: 31024360 PMCID: PMC6465575 DOI: 10.3389/fpsyt.2019.00200] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Accepted: 03/20/2019] [Indexed: 02/06/2023] Open
Abstract
The significant biochemical and physiological effects of psychological stress are beginning to be recognized as exacerbating common diseases, including osteoporosis. This review discusses the current evidence for psychological stress-associated mental health disorders as risk factors for osteoporosis, the mechanisms that may link these conditions, and potential implications for treatment. Traditional, alternative, and adjunctive therapies are discussed. This review is not intended to provide therapeutic recommendations, but, rather, the goal of this review is to delineate potential interactions of psychological stress and osteoporosis and to highlight potential multi-system implications of pharmacological interventions. Review of the current literature identifies several potentially overlapping mechanistic pathways that may be of interest (e.g., glucocorticoid signaling, insulin-like growth factor signaling, serotonin signaling) for further basic and clinical research. Current literature also supports the potential for cross-effects of therapeutics for osteoporosis and mental health disorders. While studies examining a direct link between osteoporosis and chronic psychological stress are limited, the studies reviewed herein suggest that a multi-factorial, personalized approach should be considered for improved patient outcomes in populations experiencing psychological stress, particularly those at high-risk for development of osteoporosis.
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Affiliation(s)
- Ryan R Kelly
- Research Services, Ralph H. Johnson VA Medical Center, Charleston, SC, United States.,Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC, United States
| | - Lindsay T McDonald
- Research Services, Ralph H. Johnson VA Medical Center, Charleston, SC, United States.,Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC, United States
| | - Nathaniel R Jensen
- Research Services, Ralph H. Johnson VA Medical Center, Charleston, SC, United States.,Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC, United States
| | - Sara J Sidles
- Research Services, Ralph H. Johnson VA Medical Center, Charleston, SC, United States.,Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC, United States
| | - Amanda C LaRue
- Research Services, Ralph H. Johnson VA Medical Center, Charleston, SC, United States.,Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC, United States
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