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Zapater-Fajarí M, Crespo-Sanmiguel I, Montoliu T, Hidalgo V, Salvador A. Hair cortisol and dehydroepiandrosterone and their associations with optimism and pessimism in older people. Horm Behav 2024; 159:105474. [PMID: 38194858 DOI: 10.1016/j.yhbeh.2023.105474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 12/17/2023] [Accepted: 12/19/2023] [Indexed: 01/11/2024]
Abstract
The cumulative negative effects of prolonged Hypothalamic-Pituitary-Adrenal axis (HPA axis) activation are associated with several age-related diseases. Some psychological traits such as optimism and pessimism have been shown to be related to both health and the stress response, although their relationship with the HPA axis is inconclusive. More stable HPA axis biomarkers, such as hair samples of cortisol (HC) and dehydroepiandrosterone (HDHEA), would help to clarify the association between these psychological traits and HPA axis functioning. The main aim of this study was to test the relationships between optimism and pessimism and chronic stress biomarkers measured in hair (HC and HDHEA). Additionally, a secondary objective was to explore sex differences in HC and HDHEA levels and their relationship with these psychological traits. We measured optimism, pessimism, and their combination (dispositional optimism) using the Life Orientation Test Revised (LOT-R) and chronic stress biomarkers (HC and HDHEA) in 119 healthy participants (46 men and 73 women) between 56 and 81 years old who belonged to a university program. Regression analyses controlling for perceived stress and BMI indicated that higher dispositional optimism was related to lower HC and HC:HDHEAratio (β = -0.256, p = .008 and β = -0.300, p = .002, respectively). More specifically, higher pessimism was related to higher HC (β = 0.235; p = .012) and HC:HDHEAratio (β = 0.240; p = .011), whereas higher optimism was associated with a lower HC:HDHEAratio(β = -0.205; p = .031). Moderation analyses showed no sex differences. To date, this is the first study to investigate the link between these traits and HC and HDHEA in older people. Our results confirm that positive and negative expectations about the future (i.e. optimism and pessimism) may play an important role in health due to their relationship with the HPA axis. They also strengthen the idea that the negative effects of pessimism have a greater weight than the protective effects of optimism in their relationship with HPA axis regulation.
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Affiliation(s)
- Mariola Zapater-Fajarí
- Laboratory of Cognitive Social Neuroscience, Department of Psychobiology and IDOCAL, University of Valencia, Valencia, Spain
| | - Isabel Crespo-Sanmiguel
- Laboratory of Cognitive Social Neuroscience, Department of Psychobiology and IDOCAL, University of Valencia, Valencia, Spain
| | - Teresa Montoliu
- Laboratory of Cognitive Social Neuroscience, Department of Psychobiology and IDOCAL, University of Valencia, Valencia, Spain
| | - Vanesa Hidalgo
- Laboratory of Cognitive Social Neuroscience, Department of Psychobiology and IDOCAL, University of Valencia, Valencia, Spain; Department of Psychology and Sociology, Area of Psychobiology, University of Zaragoza, Teruel, Spain.
| | - Alicia Salvador
- Laboratory of Cognitive Social Neuroscience, Department of Psychobiology and IDOCAL, University of Valencia, Valencia, Spain; Spanish National Network for Research in Mental Health CIBERSAM, 28029, Spain
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2
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Bourque M, Morissette M, Di Paolo T. Neuroactive steroids and Parkinson's disease: Review of human and animal studies. Neurosci Biobehav Rev 2024; 156:105479. [PMID: 38007170 DOI: 10.1016/j.neubiorev.2023.105479] [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: 06/01/2023] [Revised: 10/13/2023] [Accepted: 11/20/2023] [Indexed: 11/27/2023]
Abstract
The greater prevalence and incidence of Parkinson's disease (PD) in men suggest a beneficial effect of sex hormones. Neuroactive steroids have neuroprotective activities thus offering interesting option for disease-modifying therapy for PD. Neuroactive steroids are also neuromodulators of neurotransmitter systems and may thus help to control PD symptoms and side effect of dopamine medication. Here, we review the effect on sex hormones (estrogen, androgen, progesterone and its metabolites) as well as androstenediol, pregnenolone and dehydroepiandrosterone) in human studies and in animal models of PD. The effect of neuroactive steroids is reviewed by considering sex and hormonal status to help identify specifically for women and men with PD what might be a preventive approach or a symptomatic treatment. PD is a complex disease and the pathogenesis likely involves multiple cellular processes. Thus it might be useful to target different cellular mechanisms that contribute to neuronal loss and neuroactive steroids provide therapeutics options as they have multiple mechanisms of action.
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Affiliation(s)
- Mélanie Bourque
- Centre de Recherche du CHU de Québec-Université Laval, Axe Neurosciences, 2705, Boulevard Laurier, Québec G1V4G2, Canada
| | - Marc Morissette
- Centre de Recherche du CHU de Québec-Université Laval, Axe Neurosciences, 2705, Boulevard Laurier, Québec G1V4G2, Canada
| | - Thérèse Di Paolo
- Centre de Recherche du CHU de Québec-Université Laval, Axe Neurosciences, 2705, Boulevard Laurier, Québec G1V4G2, Canada; Faculté de pharmacie, Pavillon Ferdinand-Vandry, 1050, avenue de la Médecine, Université Laval, Québec G1V 0A6, Canada.
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3
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Kraemer RR, Kraemer BR. The effects of peripheral hormone responses to exercise on adult hippocampal neurogenesis. Front Endocrinol (Lausanne) 2023; 14:1202349. [PMID: 38084331 PMCID: PMC10710532 DOI: 10.3389/fendo.2023.1202349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Accepted: 11/02/2023] [Indexed: 12/18/2023] Open
Abstract
Over the last decade, a considerable amount of new data have revealed the beneficial effects of exercise on hippocampal neurogenesis and the maintenance or improvement of cognitive function. Investigations with animal models, as well as human studies, have yielded novel understanding of the mechanisms through which endocrine signaling can stimulate neurogenesis, as well as the effects of exercise on acute and/or chronic levels of these circulating hormones. Considering the effects of aging on the decline of specific endocrine factors that affect brain health, insights in this area of research are particularly important. In this review, we discuss how different forms of exercise influence the peripheral production of specific endocrine factors, with particular emphasis on brain-derived neurotrophic factor, growth hormone, insulin-like growth factor-1, ghrelin, estrogen, testosterone, irisin, vascular endothelial growth factor, erythropoietin, and cortisol. We also describe mechanisms through which these endocrine responses to exercise induce cellular changes that increase hippocampal neurogenesis and improve cognitive function.
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Affiliation(s)
- Robert R. Kraemer
- Department of Kinesiology and Health Studies, Southeastern Louisiana University, Hammond, LA, United States
| | - Bradley R. Kraemer
- Department of Biological Sciences, University of Alabama in Huntsville, Huntsville, AL, United States
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Kusters CDJ, Paul KC, Romero T, Sinsheimer JS, Ritz BR. Among men, androgens are associated with a decrease in Alzheimer's disease risk. Alzheimers Dement 2023; 19:3826-3834. [PMID: 36938850 PMCID: PMC10509321 DOI: 10.1002/alz.13013] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 01/20/2023] [Accepted: 01/23/2023] [Indexed: 03/21/2023]
Abstract
INTRODUCTION Increased levels of sex hormones have been hypothesized to decrease Alzheimer's disease (AD) risk. We assessed the association between sex steroid hormones with AD using a Mendelian randomization (MR) approach. METHODS An inverse-variance weighting (IVW) MR analysis was performed using effect estimates from external genome-wide association study (GWAS) summary statistics. We included independent variants (linkage disequilibrium R2 < 0.001) and a p-value threshold of 5 × 10-8 . RESULTS An increase in androgens was associated with a decreased AD risk among men: testosterone (odds ratio [OR]: 0.53; 95% confidence interval [CI]: 0.32-0.88; p-value: 0.01; false discovery rate [FDR] p-value: 0.03); dehydroepiandrosterone sulfate (DHEAS; OR: 0.56; 95% CI: 0.38-0.85; p-value: 0.01; FDR p-value: 0.03); and androsterone sulfate (OR: 0.69; 95% CI: 0.46-1.02; p-value: 0.06; FDR p-value: 0.10). There was no association between sex steroid hormones and AD among women, although analysis for estradiol had limited statistical power. DISCUSSION A higher concentration of androgens was associated with a decreased risk of AD among men of European ancestry, suggesting that androgens among men might be neuroprotective and could potentially prevent or delay an AD diagnosis. HIGHLIGHTS Sex hormones are hypothesized to play a role in developing Alzheimer's disease (AD). The effect of sex hormones on AD was assessed using Mendelian randomization (MR) analysis. Among women, genetically determined effects of sex hormones were limited or null. Among men, a higher concentration of androgens decreased AD risk. This study suggests a causal relationship between androgens and AD among men.
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Affiliation(s)
- Cynthia D J Kusters
- Department of Human Genetics, David Geffen School of Medicine, Los Angeles, California, USA
| | - Kimberly C Paul
- Department of Neurology, David Geffen School of Medicine, Los Angeles, California, USA
| | - Tahmineh Romero
- Statistics Core, David Geffen School of Medicine, University of California, Los Angeles, California, USA
| | - Janet S Sinsheimer
- Department of Human Genetics, David Geffen School of Medicine, Los Angeles, California, USA
- Department of Biostatistics, School of Public Health, University of California, Los Angeles, California, USA
- Department of Computational Medicine, David Geffen School of Medicine, Los Angeles, California, USA
| | - Beate R Ritz
- Department of Neurology, David Geffen School of Medicine, Los Angeles, California, USA
- Department of Epidemiology, UCLA Fielding School of Public Health, Los Angeles, California, USA
- Department of Environmental Health, UCLA Fielding School of Public Health, Los Angeles, California, USA
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Jethwani P, Rastogi A, Shukla R. Dehydroepiandrosterone sulfate supplementation in health and diseases. World J Meta-Anal 2023; 11:102-111. [DOI: 10.13105/wjma.v11.i4.102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 02/09/2023] [Accepted: 04/10/2023] [Indexed: 04/14/2023] Open
Abstract
Dehydroepiandrosterone sulfate (DHEAS) is a hormone produced by the zona reticularis of the adrenal gland and the ovaries. Initially considered as an inert compound merely serving as an intermediate in the conversion of cholesterol to androgens, interest in DHEA began to grow in the 1960s when it was found that DHEAS is the most abundant steroid hormone in human plasma and that its levels decline with age. In many countries, DHEA is considered a nutritional supplement. It has been used for a multitude of conditions which include sexual dysfunction, infertility, genitourinary syndrome of menopause, musculoskeletal disorders, cardiovascular diseases, ageing, neurological diseases, autoimmune conditions, adrenal insufficiency, and anorexia nervosa. We describe an overview of the historical evolution of DHEA, its physiology, and the disease states where it has been evaluated as a supplement.
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Affiliation(s)
- Parth Jethwani
- Department of Endocrinology & Metabolism, All India Institute of Medical Sciences Jodhpur, Jodhpur 342001, Rajasthan, India
| | - Ashu Rastogi
- Department of Endocrinology, Postgraduate Institution of Medical education and Research Chandigarh, Chandigarh 160017, Chandigarh, India
| | - Ravindra Shukla
- Department of Endocrinology & Metabolism, All India Institute of Medical Sciences Jodhpur, Jodhpur 342001, Rajasthan, India
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Su BM, Shi YB, Lin W, Xu L, Xu XQ, Lin J. A chemoenzymatic process for preparation of highly purified dehydroepiandrosterone in high space-time yield. Bioorg Chem 2023; 133:106391. [PMID: 36739685 DOI: 10.1016/j.bioorg.2023.106391] [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: 11/05/2022] [Revised: 01/19/2023] [Accepted: 01/20/2023] [Indexed: 01/26/2023]
Abstract
Dehydroepiandrosterone (DHEA) is an important neurosteroid hormone to keep human hormonal balance and reproductive health. However, DHEA was always produced with impurities either by chemical or biological method and required high-cost purification before the medical use. To address this issue, a novel chemoenzymatic process was proposed and implemented to produce DHEA. An acetoxylated derivate of 4-androstene-3,17-dione (4-AD) was generated by chemical reaction and converted into DHEA by an enzyme cascade reaction combining a hydrolysis reaction with a reduction reaction. The hydrolysis reaction was catalyzed by a commercial esterase Z03 while the reduction reaction was catalyzed by E. coli cells co-expressing a 3β-hydroxysteroid dehydrogenase SfSDR and a glucose dehydrogenase BtGDH. After the condition optimization, DHEA was synthesized at a 100 mL scale under 100 mM of substrate loading and purified as white powder with the highest space-time yield (4.80 g/L/h) and purity (99 %) in the biosynthesis of DHEA. The successful attempt in this study provides a new approach for green synthesis of highly purified DHEA in the pharmaceutical industry.
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Affiliation(s)
- Bing-Mei Su
- College of Chemistry, Fuzhou University, Fuzhou 350116, China; College of Biological Science and Engineering, Fuzhou University, Fuzhou 350116, China
| | - Yi-Bing Shi
- College of Biological Science and Engineering, Fuzhou University, Fuzhou 350116, China
| | - Wei Lin
- College of Chemistry, Fuzhou University, Fuzhou 350116, China
| | - Lian Xu
- College of Biological Science and Engineering, Fuzhou University, Fuzhou 350116, China
| | - Xin-Qi Xu
- College of Biological Science and Engineering, Fuzhou University, Fuzhou 350116, China
| | - Juan Lin
- College of Biological Science and Engineering, Fuzhou University, Fuzhou 350116, China.
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Zambrano E, Reyes-Castro LA, Rodríguez-González GL, Chavira R, Lomas-Soria C, Gerow KG, Nathanielsz PW. Developmental Programming-Aging Interactions Have Sex-Specific and Developmental Stage of Exposure Outcomes on Life Course Circulating Corticosterone and Dehydroepiandrosterone (DHEA) Concentrations in Rats Exposed to Maternal Protein-Restricted Diets. Nutrients 2023; 15:nu15051239. [PMID: 36904238 PMCID: PMC10005360 DOI: 10.3390/nu15051239] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 02/23/2023] [Accepted: 02/25/2023] [Indexed: 03/05/2023] Open
Abstract
The steroids corticosterone and dehydroepiandrosterone (DHEA) perform multiple life course functions. Rodent life-course circulating corticosterone and DHEA trajectories are unknown. We studied life course basal corticosterone and DHEA in offspring of rats fed protein-restricted (10% protein, R) or control (20% protein, C), pregnancy diet first letter, and/or lactation second letter, producing four offspring groups-CC, RR, CR, and RC. We hypothesize that 1. maternal diet programs are sexually dimorphic, offspring life course steroid concentrations, and 2. an aging-related steroid will fall. Both changes differ with the plastic developmental period offspring experienced R, fetal life or postnatally, pre-weaning. Corticosterone was measured by radioimmunoassay and DHEA by ELISA. Steroid trajectories were evaluated by quadratic analysis. Female corticosterone was higher than male in all groups. Male and female corticosterone were highest in RR, peaked at 450 days, and fell thereafter. DHEA declined with aging in all-male groups. DHEA: corticosterone fell in three male groups but increased in all-female groups with age. In conclusion, life course and sexually dimorphic steroid developmental programming-aging interactions may explain differences in steroid studies at different life stages and between colonies experiencing different early-life programming. These data support our hypotheses of sex and programming influences and aging-related fall in rat life course serum steroids. Life course studies should address developmental programming-aging interactions.
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Affiliation(s)
- Elena Zambrano
- Departamento de Biología de la Reproducción, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City 14080, Mexico
| | - Luis A. Reyes-Castro
- Departamento de Biología de la Reproducción, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City 14080, Mexico
| | - Guadalupe L. Rodríguez-González
- Departamento de Biología de la Reproducción, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City 14080, Mexico
| | - Roberto Chavira
- Departamento de Biología de la Reproducción, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City 14080, Mexico
| | - Consuelo Lomas-Soria
- Departamento de Biología de la Reproducción, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City 14080, Mexico
- CONACyT-Cátedras, Departamento de Biología de la Reproducción, Instituto Nacional de Ciencias Médicas y Nutrición SZ, Mexico City 14080, Mexico
| | - Kenneth G. Gerow
- Department of Statistics, University of Wyoming, Laramie, WY 82071, USA
| | - Peter W. Nathanielsz
- Wyoming Center for Pregnancy and Life Course Health Research, Department of Animal Science, University of Wyoming, Laramie, WY 82071, USA
- Correspondence:
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8
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Kalam F, Akasheh RT, Cienfuegos S, Ankireddy A, Gabel K, Ezpeleta M, Lin S, Tamatam CM, Reddy SP, Spring B, Khan SA, Varady KA. Effect of time-restricted eating on sex hormone levels in premenopausal and postmenopausal females. Obesity (Silver Spring) 2023; 31 Suppl 1:57-62. [PMID: 36203273 PMCID: PMC9877115 DOI: 10.1002/oby.23562] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 07/26/2022] [Accepted: 08/02/2022] [Indexed: 01/29/2023]
Abstract
OBJECTIVE Concerns have been raised regarding the impact of time-restricted eating (TRE) on sex hormones in females. This study examined how TRE affects sex steroids in premenopausal and postmenopausal females. METHODS This is a secondary analysis of an 8-week TRE study (4- to 6-hour eating window) conducted in adults with obesity. Men and perimenopausal females were excluded. Females were classified into two groups based on menstrual status: premenopausal (n = 12) or postmenopausal (n = 11). RESULTS After 8 weeks, body weight decreased in premenopausal females (-3% ± 2%) and postmenopausal females (-4% ± 2%) (main effect of time, p < 0.001), with no difference between groups (no group × time interaction). Circulating levels of testosterone, androstenedione, and sex hormone binding globulin (SHBG) did not change in either group (no group × time interaction). Dehydroepiandrosterone (DHEA) concentrations decreased (p < 0.05) in premenopausal (-14% ± 32%) and postmenopausal females (-13% ± 34%; main effect of time, p = 0.03), with no difference between groups. Estradiol, estrone, and progesterone were measured only in postmenopausal females, and they remained unchanged. CONCLUSIONS In premenopausal females, androgens and SHBG remained unchanged during TRE, whereas DHEA decreased. In postmenopausal females, estrogens, progesterone, androgens, and SHBG did not change, but DHEA was reduced.
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Affiliation(s)
- Faiza Kalam
- Department of Preventive Medicine, Northwestern University, Chicago, Illinois, USA
| | - Rand T Akasheh
- Department of Nutrition and Dietetics, American University of Madaba, Madaba, Jordan
- Department of Kinesiology and Nutrition, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Sofia Cienfuegos
- Department of Kinesiology and Nutrition, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Aparna Ankireddy
- Department of Pediatrics, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Kelsey Gabel
- Department of Kinesiology and Nutrition, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Mark Ezpeleta
- Department of Kinesiology and Nutrition, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Shuhao Lin
- Department of Kinesiology and Nutrition, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Chandra M Tamatam
- Department of Pediatrics, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Sekhar P Reddy
- Department of Pediatrics, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Bonnie Spring
- Department of Preventive Medicine, Northwestern University, Chicago, Illinois, USA
| | - Seema A Khan
- Department of Preventive Medicine, Northwestern University, Chicago, Illinois, USA
| | - Krista A Varady
- Department of Kinesiology and Nutrition, University of Illinois at Chicago, Chicago, Illinois, USA
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9
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Synthesis, crystal structure and computational studies of new steroidal hemisuccinyl ester derivatives. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2022.134191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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10
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Guo Y, Piasecki J, Swiecicka A, Ireland A, Phillips BE, Atherton PJ, Stashuk D, Rutter MK, McPhee JS, Piasecki M. Circulating testosterone and dehydroepiandrosterone are associated with individual motor unit features in untrained and highly active older men. GeroScience 2022; 44:1215-1228. [PMID: 34862585 PMCID: PMC9213614 DOI: 10.1007/s11357-021-00482-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 10/28/2021] [Indexed: 10/31/2022] Open
Abstract
Long-term exercise training has been considered as an effective strategy to counteract age-related hormonal declines and minimise muscle atrophy. However, human data relating circulating hormone levels with motor nerve function are scant. The aims of the study were to explore associations between circulating sex hormone levels and motor unit (MU) characteristics in older men, including masters athletes competing in endurance and power events. Forty-three older men (mean ± SD age: 69.9 ± 4.6 years) were studied based on competitive status. The serum concentrations of dehydroepiandrosterone (DHEA), total testosterone (T) and estradiol were quantified using liquid chromatography mass spectrometry. Intramuscular electromyographic signals were recorded from vastus lateralis (VL) during 25% of maximum voluntary isometric contractions and processed to extract MU firing rate (FR), and motor unit potential (MUP) features. After adjusting for athletic status, MU FR was positively associated with DHEA levels (p = 0.019). Higher testosterone and estradiol were associated with lower MUP complexity; these relationships remained significant after adjusting for athletic status (p = 0.006 and p = 0.019, respectively). Circulating DHEA was positively associated with MU firing rate in these older men. Higher testosterone levels were associated with reduced MUP complexity, indicating reduced electrophysiological temporal dispersion, which is related to decreased differences in conduction times along axonal branches and/or MU fibres. Although evident in males only, this work highlights the potential of hormone administration as a therapeutic interventional strategy specifically targeting human motor units in older age.
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Affiliation(s)
- Yuxiao Guo
- MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research and NIHR Nottingham BRC, School of Medicine, University of Nottingham, Nottingham, UK
| | - Jessica Piasecki
- Musculoskeletal Physiology Research Group, Sport, Health and Performance Enhancement Research Centre, Nottingham Trent University, Nottingham, UK
| | - Agnieszka Swiecicka
- Division of Diabetes, Endocrinology and Gastroenterology, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
- Department of Basic and Clinical Sciences, University of Nicosia Medical School, Nicosia, Cyprus
| | - Alex Ireland
- Department of Sport and Exercise Sciences, Musculoskeletal Science and Sports Medicine Research Centre, Manchester Metropolitan University, Manchester, UK
| | - Bethan E. Phillips
- MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research and NIHR Nottingham BRC, School of Medicine, University of Nottingham, Nottingham, UK
| | - Philip J. Atherton
- MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research and NIHR Nottingham BRC, School of Medicine, University of Nottingham, Nottingham, UK
| | - Daniel Stashuk
- Department of Systems Design Engineering, University of Waterloo, Waterloo, ON Canada
| | - Martin K. Rutter
- Division of Diabetes, Endocrinology and Gastroenterology, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
- Diabetes, Endocrinology and Metabolism Centre, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - Jamie S. McPhee
- Department of Sport and Exercise Sciences, Musculoskeletal Science and Sports Medicine Research Centre, Manchester Metropolitan University, Manchester, UK
| | - Mathew Piasecki
- MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research and NIHR Nottingham BRC, School of Medicine, University of Nottingham, Nottingham, UK
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Tarkhan AH, Anwardeen NR, Sellami M, Donati F, Botrè F, de la Torre X, Elrayess MA. Comparing metabolic profiles between female endurance athletes and non-athletes reveals differences in androgen and corticosteroid levels. J Steroid Biochem Mol Biol 2022; 219:106081. [PMID: 35182726 DOI: 10.1016/j.jsbmb.2022.106081] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Accepted: 02/09/2022] [Indexed: 11/24/2022]
Abstract
Endurance training is associated with physiological changes in elite athletes, but little is known about female-specific effects of endurance training. Despite the significant rise in female sports participation, findings from studies performed on male athletes are largely extrapolated to females without taking into consideration sex-specific differences in metabolism. Subsequently, this study aimed to investigate the steroid hormone profiles of elite female endurance athletes in comparison with their non-athletic counterparts. Untargeted metabolomics-based mass spectroscopy combined with ultra-high-performance liquid chromatography was performed on serum samples from 51 elite female endurance athletes and 197 non-athletic females. The results showed that, compared to non-athletic females, certain androgen, pregnenolone, and progestin steroid hormones were reduced in elite female endurance athletes, while corticosteroids were elevated. The most significantly altered steroid hormones were 5alpha-androstan-3alpha,17alpha-diol monosulfate (FDR = 1.90 × 10-05), androstenediol (3alpha, 17alpha) monosulfate (FDR = 2.93 × 10-04), and cortisol (FDR = 2.93 × 10-04). Conclusively, the present study suggests that elite female endurance athletes have a unique steroid hormone profile with implications on their general health and performance.
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Affiliation(s)
| | | | - Maha Sellami
- Physical Education Department (PE), College of Education, Qatar University, Doha, Qatar.
| | - Francesco Donati
- Laboratorio Antidoping, Federazione Medico Sportiva Italiana, Rome, Italy.
| | - Francesco Botrè
- Laboratorio Antidoping, Federazione Medico Sportiva Italiana, Rome, Italy.
| | - Xavier de la Torre
- Laboratorio Antidoping, Federazione Medico Sportiva Italiana, Rome, Italy.
| | - Mohamed A Elrayess
- Biomedical Research Center, Qatar University, Doha, Qatar; Vice President for Medical and Health Sciences Office, QU Health, Qatar University, Doha, Qatar.
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12
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Dehydroepiandrosterone (DHEA) Improves the Metabolic and Haemostatic Disturbances in Rats with Male Hypogonadism. Sci Pharm 2022. [DOI: 10.3390/scipharm90010006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Objectives: The current work was designed to study the effect of dehydroepiandrosterone (DHEA) on glucose homeostasis, liver functions and hemostatic disturbances in a rat model of bilateral orchidectomy (ORCH). Methods: 32 male rats (n = 8) were randomly assigned into 4 groups; (i) control (sham operated) group; were normal rats in which all surgical procedures were done without ORCH, (ii) Control + DHEA group: as control group but rats were treated with DHEA for 12 weeks, (iii) orchiectomized (ORCH) group: rats had bilateral orchidectomy and (iv) ORCH + DHEA group: orchiectomized rats treated with DHEA for 12 weeks. Four weeks after ORCH, DHEA treatment began and lasted for twelve weeks. By the end of the experiment, the parameters of glucose homeostasis, lipid profile, liver enzymes, bleeding and clotting times (B.T. and C.T.), prothrombin time (P.T.), activated partial thromboplastin time (aPTT), platelet count and aggregation, von-Willebrand factor (vWF), fibrinogen, plasminogen activator inhibitor (PAI-1), fibrin degradation products (FDP), intercellular adhesion molecule (ICAM-1), vascular cell adhesion molecule (VCAM-1), endothelin-1 were measured. Results: ORCH caused significant deteriorations in the parameters of glucose homeostasis, lipid profile, and liver functions (p < 0.05). In addition, lower androgenicity-induced by ORCH caused a significant rise in PAI-1, fibrinogen, FDPs, ET-1 (p < 0.01) with significant shortening of bleeding and clotting times. DHEA replacement therapy significantly decreased glucose, insulin, PAI-1, fibrinogen, ICAM-1, and VCAM-1 when compared to ORCH rats. Conclusion: DHEA ameliorated the metabolic, hepatic, hypercoagulable, and hypofibrinolysis disturbances induced by ORCH.
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Jang S, Choi SW, Son SJ, Oh J, Ha J, Kim WJ, Roh HW, Kim KY, Lee S, Jung E, Cha W, Chae H, Kang S, Kwon JH, Kim IY, Lee JY, Shin HK, Ryu JS, Ahn R, Hong CH, Seok JH. Virtual reality-based monitoring test for MCI: A multicenter feasibility study. Front Psychiatry 2022; 13:1057513. [PMID: 36741575 PMCID: PMC9891464 DOI: 10.3389/fpsyt.2022.1057513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 12/19/2022] [Indexed: 01/19/2023] Open
Abstract
OBJECTIVES As the significance of the early diagnosis of mild cognitive impairment (MCI) has emerged, it is necessary to develop corresponding screening tools with high ecological validity and feasible biomarkers. Virtual reality (VR)-based cognitive assessment program, which is close to the daily life of the older adults, can be suitable screening tools for MCI with ecological validity and accessibility. Meanwhile, dehydroepiandrosterone (DHEA) has been observed at a low concentration in the older adults with dementia or cognitive decline, indicating its potential as a biomarker of MCI. This study aimed to determine the efficacy and usability of a VR cognitive assessment program and salivary DHEA for screening MCI. METHODS The VR cognitive assessment program and the traditional Montreal Cognitive Assessment (MOCA) test were performed on 12 patients with MCI and 108 healthy older adults. The VR program operates in a situation of caring for a grandchild, and evaluates the memory, attention, visuospatial, and executive functions. An analysis of covariance (ANCOVA), a partial correlation analysis, and receiving operating characteristic (ROC) curve analysis were conducted for statistical analysis. RESULTS According to the ANCOVA, no significant difference in MOCA scores was found between the normal and MCI groups (F = 2.36, p = 0.127). However, the VR total score of the MCI group was significantly lower than that of the normal group (F = 8.674, p = 0.004). There was a significant correlation between the MOCA and VR scores in the total and matched subdomain scores. The ROC curve analysis also showed a larger area under the curve (AUC) for the VR test (0.765) than for the MOCA test (0.598), and the sensitivity and specificity of the VR program were 0.833 and 0.722, respectively. Salivary DHEA was correlated with VR total (R 2 = 0.082, p = 0.01) and attention scores (R 2 = 0.086, p = 0.009). CONCLUSION The VR cognitive test was as effective as the traditional MOCA test in the MCI classification and safe enough for older adults to perform, indicating its potential as a diagnostic tool. It has also been shown that salivary DHEA can be used as a biomarker for MCI.
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Affiliation(s)
- Sooah Jang
- Research Institute of Minds.AI, Co., Ltd., Seoul, Republic of Korea
| | - Sun-Woo Choi
- Research Institute of Minds.AI, Co., Ltd., Seoul, Republic of Korea
| | - Sang Joon Son
- Department of Psychiatry, Ajou University, Suwon, Gyeonggi-do, Republic of Korea
| | - Jooyoung Oh
- Department of Psychiatry, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.,Institute of Behavioral Sciences in Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Junghee Ha
- Institute of Behavioral Sciences in Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea.,Department of Psychiatry, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Woo Jung Kim
- Institute of Behavioral Sciences in Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea.,Department of Psychiatry, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Gyeonggi-do, Republic of Korea
| | - Hyun Woong Roh
- Department of Psychiatry, Ajou University, Suwon, Gyeonggi-do, Republic of Korea
| | - Keun You Kim
- Institute of Behavioral Sciences in Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea.,Department of Psychiatry, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - San Lee
- Institute of Behavioral Sciences in Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea.,Department of Psychiatry, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Gyeonggi-do, Republic of Korea
| | - Eunjin Jung
- Institute of Behavioral Sciences in Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Woojin Cha
- Institute of Behavioral Sciences in Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Heonjoo Chae
- FNIKorea Co., Ltd., Gwacheon, Gyeonggi-do, Republic of Korea
| | - Suzi Kang
- FNIKorea Co., Ltd., Gwacheon, Gyeonggi-do, Republic of Korea
| | - Ji Hye Kwon
- Research Institute of Minds.AI, Co., Ltd., Seoul, Republic of Korea
| | - In-Young Kim
- Research Institute of Minds.AI, Co., Ltd., Seoul, Republic of Korea
| | - Ju-Yeal Lee
- Research Institute of Minds.AI, Co., Ltd., Seoul, Republic of Korea
| | - Hyun Kyung Shin
- Institute of Behavioral Sciences in Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jin Sun Ryu
- Research Institute of Minds.AI, Co., Ltd., Seoul, Republic of Korea.,Department of Psychiatry, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Ryunsup Ahn
- Research Institute of Minds.AI, Co., Ltd., Seoul, Republic of Korea
| | - Chang Hyung Hong
- Department of Psychiatry, Ajou University, Suwon, Gyeonggi-do, Republic of Korea
| | - Jeong-Ho Seok
- Research Institute of Minds.AI, Co., Ltd., Seoul, Republic of Korea.,Department of Psychiatry, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.,Institute of Behavioral Sciences in Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
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14
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Farzane A, Koushkie Jahromi M. The effect of pilates training on hormonal and psychophysical function in older women. J Sports Med Phys Fitness 2022; 62:110-121. [PMID: 33555671 DOI: 10.23736/s0022-4707.21.12089-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND DHEA-S and cortisol and their ratio are important determinants of some physiological and psychological function during aging. The present study aimed to determine the effect of eight weeks of pilates training on diurnal salivary cortisol, dehydroepiandrosterone sulfate (DHEA-S), and cortisol to DHEA-S ratio, cardiorespiratory fitness (CF), and psychological function in older women. METHODS Twenty-seven healthy older women (aged 60-65 years) participated in the study voluntarily and were divided into two groups of pilates training (N.=15) and control (N.=12), randomly. Before and after the experiment, salivary samples (at wake up and 30-min postawakening, midday, 5 p.m., and 9 p.m.) were taken and the participants completed the questionnaires. Cognitive function was assessed by the MMSE questionnaire. Pilates training was performed three times weekly, in non-consecutive days. RESULTS Pilates training increased V̇O2<inf>max</inf> (48%, P<0.001) and cognitive function (73%, P<0.001) and decreased BMI (16%, P=0.042), anxiety (53%, P<0.001) and depression (67%, P<0.001) compared to the control group. Also, in pilates training group, mean cortisol (16%, P=0.039), CAR (24%, P=0.010), fall after peak of cortisol (15%, P=0.50), morning DHEA-S (43%, P<0.001) and mean DHEA-S (34%, P=0.002) increased compared to the control group. CONCLUSIONS This study suggests that pilates training could improve mental and physical function which was accompanied by changes of diurnal cortisol and DHEA as one of the possible effective factors.
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Affiliation(s)
- Arezu Farzane
- School of Education and Psychology, Department of Sport Sciences, Shiraz University, Shiraz, Iran
| | - Maryam Koushkie Jahromi
- School of Education and Psychology, Department of Sport Sciences, Shiraz University, Shiraz, Iran -
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15
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Osei F, Block A, Wippert PM. Association of primary allostatic load mediators and metabolic syndrome (MetS): A systematic review. Front Endocrinol (Lausanne) 2022; 13:946740. [PMID: 36482995 PMCID: PMC9724739 DOI: 10.3389/fendo.2022.946740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 10/20/2022] [Indexed: 11/23/2022] Open
Abstract
Allostatic load (AL) exposure may cause detrimental effects on the neuroendocrine system, leading to metabolic syndrome (MetS). The primary mediators of AL involve serum dehydroepiandrosterone sulfate (DHEAS; a functional HPA axis antagonist); further, cortisol, urinary norepinephrine (NE), and epinephrine (EPI) excretion levels (assessed within 12-h urine as a golden standard for the evaluation of the HPA axis activity and sympathetic nervous system activity). However, the evidence of an association between the primary mediators of AL and MetS is limited. This systematic review aimed to critically examine the association between the primary mediators of AL and MetS. PubMed and Web of Science were searched for articles from January 2010 to December 2021, published in English. The search strategy focused on cross-sectional and case-control studies comprising adult participants with MetS, obesity, overweight, and without chronic diseases. The STROBE checklist was used to assess study quality control. Of 770 studies, twenty-one studies with a total sample size (n = 10,666) met the eligibility criteria. Eighteen studies were cross-sectional, and three were case-control studies. The included studies had a completeness of reporting score of COR % = 87.0 ± 6.4%. It is to be noted, that cortisol as a primary mediator of AL showed an association with MetS in 50% (urinary cortisol), 40% (serum cortisol), 60% (salivary cortisol), and 100% (hair cortisol) of the studies. For DHEAS, it is to conclude that 60% of the studies showed an association with MetS. In contrast, urinary EPI and urinary NE had 100% no association with MetS. In summary, there is a tendency for the association between higher serum cortisol, salivary cortisol, urinary cortisol, hair cortisol, and lower levels of DHEAS with MetS. Future studies focusing on longitudinal data are warranted for clarification and understanding of the association between the primary mediators of AL and MetS.
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Arthur L, Esaulova E, Mogilenko DA, Tsurinov P, Burdess S, Laha A, Presti R, Goetz B, Watson MA, Goss CW, Gurnett CA, Mudd PA, Beers C, O'Halloran JA, Artyomov MN. Cellular and plasma proteomic determinants of COVID-19 and non-COVID-19 pulmonary diseases relative to healthy aging. NATURE AGING 2021; 1:535-549. [PMID: 37117829 DOI: 10.1038/s43587-021-00067-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 04/14/2021] [Indexed: 04/30/2023]
Abstract
We examine the cellular and soluble determinants of coronavirus disease 2019 (COVID-19) relative to aging by performing mass cytometry in parallel with clinical blood testing and plasma proteomic profiling of ~4,700 proteins from 71 individuals with pulmonary disease and 148 healthy donors (25-80 years old). Distinct cell populations were associated with age (GZMK+CD8+ T cells and CD25low CD4+ T cells) and with COVID-19 (TBET-EOMES- CD4+ T cells, HLA-DR+CD38+ CD8+ T cells and CD27+CD38+ B cells). A unique population of TBET+EOMES+ CD4+ T cells was associated with individuals with COVID-19 who experienced moderate, rather than severe or lethal, disease. Disease severity correlated with blood creatinine and urea nitrogen levels. Proteomics revealed a major impact of age on the disease-associated plasma signatures and highlighted the divergent contribution of hepatocyte and muscle secretomes to COVID-19 plasma proteins. Aging plasma was enriched in matrisome proteins and heart/aorta smooth muscle cell-specific proteins. These findings reveal age-specific and disease-specific changes associated with COVID-19, and potential soluble mediators of the physiological impact of COVID-19.
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Affiliation(s)
- Laura Arthur
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Ekaterina Esaulova
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Denis A Mogilenko
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Petr Tsurinov
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO, USA
- JetBrains Research, Saint Petersburg, Russia
| | - Samantha Burdess
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Anwesha Laha
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Rachel Presti
- Department of Medicine, Washington University School of Medicine, Saint Louis, MO, USA
| | - Brian Goetz
- Siteman Cancer Center, Washington University School of Medicine, Saint Louis, MO, USA
| | - Mark A Watson
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Charles W Goss
- Division of Biostatistics, Washington University School of Medicine, Saint Louis, MO, USA
| | - Christina A Gurnett
- Department of Neurology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Philip A Mudd
- Department of Emergency Medicine, Washington University School of Medicine, Saint Louis, MO, USA
| | - Courtney Beers
- Siteman Cancer Center, Washington University School of Medicine, Saint Louis, MO, USA
| | - Jane A O'Halloran
- Department of Medicine, Washington University School of Medicine, Saint Louis, MO, USA
| | - Maxim N Artyomov
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO, USA.
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Dumontet T, Martinez A. Adrenal androgens, adrenarche, and zona reticularis: A human affair? Mol Cell Endocrinol 2021; 528:111239. [PMID: 33676986 DOI: 10.1016/j.mce.2021.111239] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/11/2021] [Accepted: 03/01/2021] [Indexed: 12/11/2022]
Abstract
In humans, reticularis cells of the adrenal cortex fuel the production of androgen steroids, constituting the driver of numerous morphological changes during childhood. These steps are considered a precocious stage of sexual maturation and are grouped under the term "adrenarche". This review describes the molecular and enzymatic characteristics of the zona reticularis, along with the possible signals and mechanisms that control its emergence and the associated clinical features. We investigate the differences between species and discuss new studies such as genetic lineage tracing and transcriptomic analysis, highlighting the rodent inner cortex's cellular and molecular heterogeneity. The recent development and characterization of mouse models deficient for Prkar1a presenting with adrenocortical reticularis-like features prompt us to review our vision of the mouse adrenal gland maturation. We expect these new insights will help increase our understanding of the adrenarche process and the pathologies associated with its deregulation.
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Affiliation(s)
- Typhanie Dumontet
- Department of Internal Medicine, Division of Metabolism, Endocrinology, and Diabetes, University of Michigan, Ann Arbor, MI, USA; Training Program in Organogenesis, Center for Cell Plasticity and Organ Design, University of Michigan, Ann Arbor, MI, USA.
| | - Antoine Martinez
- Génétique, Reproduction et Développement (GReD), Centre National de La Recherche Scientifique CNRS, Institut National de La Santé & de La Recherche Médicale (INSERM), Université Clermont-Auvergne (UCA), France.
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18
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Gündoğan Gİ, Kıg C, Karacan M, Doğruman H. Investigation of Physiological Effects Induced by Dehydroepiandrosterone in Human Endothelial Cells and Ovarian Cancer Cell Line. Turk J Pharm Sci 2021; 18:185-191. [PMID: 33902257 DOI: 10.4274/tjps.galenos.2020.58827] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Objectives Dehydroepiandrosterone (DHEA) is an endogenous hormone that acts as a ligand for several cellular receptors. An age-dependent decline in circulating levels of DHEA is linked to changes in various physiological functions. In gynecological clinical practice, DHEA is commonly prescribed to induce ovulation. Some clinical studies report a positive association between high serum concentrations of DHEA and an increased risk of developing ovarian cancer. However, the in vitro physiological effects of DHEA on ovarian cancerous cells have not been explored thus far. In this study, we aimed to investigate the physiological effects of DHEA treatment (0-200 μM, 24-72 hours) on MDAH-2774 human ovarian cancer cell line and primary HuVeC human endothelial cells. Materials and Methods The physiological effects of DHEA treatment (0-200 μM, 24-72 hours) on MDAH-2774 human ovarian cancer cell line and primary HuVeC human endothelial cells were investigated with the (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) test, acridine orange/ethidium bromide staining, and scratch assay. Results DHEA treatment promoted proliferation of the MDAH-2774 cancer cell line in a dose-dependent manner (r=0.6906, p<0.0001, for 24 hours) (r=0.6802, p<0.0001, for 48 hours) (r=0.7969, p<0.0001, for 72 hours). In contrast, DHEA inhibited proliferation of the primary HuVeC cells (r=0.9490, p<0.0001, for 24 hours) (r=0.9533, p<0.0001, for 48 hours) (r=0.9584, p<0.0001, for 72 hours). In agreement with these observations, DHEA treatment resulted in a dose-dependent increase in the number of necrotic cells in the primary HuVeC cells (r=0.97, p<0.0001). However, the number of necrotic or apoptotic cells did not change significantly when the MDAH-2774 cells was exposed to DHEA. Moreover, we found that DHEA treatment reduced the migration rate of HuVeC cells in a dose-dependent manner (r=0.9868, p<0.0001), whereas only a slight increase was observed in the MDAH-2774 ovarian cancer cell line (r=0.8938, p<0.05). Conclusion Our findings suggest that DHEA promotes the proliferation of ovarian cancer cells in a dose-dependent manner in vitro. Moreover, DHEA induced necrosis and inhibited proliferation in endothelial cells. Although mechanistic evidence is required, our preliminary findings imply that exposure to high doses of DHEA may be associated with an increased risk of developing ovarian cancer.
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Affiliation(s)
- Gül İpek Gündoğan
- Istanbul Yeni Yuzyil University Faculty of Medicine, Department of Histology and Embryology, Istanbul, Turkey
| | - Cenk Kıg
- Istanbul Yeni Yuzyil University Faculty of Medicine, Department of Medical Biology and Genetics, Istanbul, Turkey
| | - Meriç Karacan
- Istanbul Yeni Yuzyil University Faculty of Medicine, Department of Gynecology and Obstetrics, Istanbul, Turkey
| | - Hüsniye Doğruman
- Istanbul Yeni Yuzyil University Faculty of Medicine, Department of Histology and Embryology, Istanbul, Turkey
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19
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Wang J, Wang L. The therapeutic effect of dehydroepiandrosterone (DHEA) on vulvovaginal atrophy. Pharmacol Res 2021; 166:105509. [PMID: 33610719 DOI: 10.1016/j.phrs.2021.105509] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 02/16/2021] [Accepted: 02/16/2021] [Indexed: 01/23/2023]
Abstract
Vulvovaginal atrophy (VVA) is a chronic disease that mostly occurs in postmenopausal women. After menopause, insufficient sex hormones affect the anatomy of the vagina and cause drastic physiological changes. The main histopathological studies of VVA show that postmenopausal estrogen deficiency can lead to the increase of intermediate/parabasal cells, resulting in the loss of lactobacillus, elasticity and lubricity, vaginal epithelial atrophy, pain, dryness. Although the role of estrogen hormones in the treatment of VVA has always been in the past, it is now widely accepted that it also depends on androgens. Estrogen drugs have many side effects. So, Dehydroepiandrosterone(DHEA)is promising for the treatment of VVA, especially when women with contraindications to estrogen have symptoms. This review is expected to understand the latest developments in VVA and the efficacy of DHEA.
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Affiliation(s)
- Jing Wang
- Laboratory for Reproductive Immunology, Hospital & Institute of Obstetrics and Gynecology, Shanghai Medical College, Fudan University, Shanghai, China; The Academy of Integrative Medicine, Fudan University, Shanghai, China; Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases, Shanghai, China
| | - Ling Wang
- Laboratory for Reproductive Immunology, Hospital & Institute of Obstetrics and Gynecology, Shanghai Medical College, Fudan University, Shanghai, China; The Academy of Integrative Medicine, Fudan University, Shanghai, China; Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases, Shanghai, China.
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The Complex Interplay between Endocannabinoid System and the Estrogen System in Central Nervous System and Periphery. Int J Mol Sci 2021; 22:ijms22020972. [PMID: 33478092 PMCID: PMC7835826 DOI: 10.3390/ijms22020972] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 01/08/2021] [Accepted: 01/13/2021] [Indexed: 02/07/2023] Open
Abstract
The endocannabinoid system (ECS) is a lipid cell signaling system involved in the physiology and homeostasis of the brain and peripheral tissues. Synaptic plasticity, neuroendocrine functions, reproduction, and immune response among others all require the activity of functional ECS, with the onset of disease in case of ECS impairment. Estrogens, classically considered as female steroid hormones, regulate growth, differentiation, and many other functions in a broad range of target tissues and both sexes through the activation of nuclear and membrane estrogen receptors (ERs), which leads to genomic and non-genomic cell responses. Since ECS function overlaps or integrates with many other cell signaling systems, this review aims at updating the knowledge about the possible crosstalk between ECS and estrogen system (ES) at both central and peripheral level, with focuses on the central nervous system, reproduction, and cancer.
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Dutheil F, de Saint Vincent S, Pereira B, Schmidt J, Moustafa F, Charkhabi M, Bouillon-Minois JB, Clinchamps M. DHEA as a Biomarker of Stress: A Systematic Review and Meta-Analysis. Front Psychiatry 2021; 12:688367. [PMID: 34295276 PMCID: PMC8290065 DOI: 10.3389/fpsyt.2021.688367] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 05/28/2021] [Indexed: 12/13/2022] Open
Abstract
Background: Psychosocial stress is a significant public health problem inducing consequences for quality of life. Results about the use of dehydroepiandrosterone (DHEA) as a biomarker of acute stress are conflicting. We conducted a systematic review and meta-analysis to demonstrate that DHEA levels could be a biomarker of stress. Methods: PubMed, Cochrane Library, Embase, and ScienceDirect databases were searched on March 19, 2021 using the keywords "acute stress" AND "DHEA" OR "Dehydroepiandrosterone." Articles needed to describe our primary outcome, i.e., induction of acute stress and at least two measures of DHEA. Results: We included 14 studies, with a total of 631 participants, in our meta-analysis. The DHEA levels increased overtime after acute stress [standardized mean difference (SMD) = 1.56, 95%CI = 1.13-1.99]. Stratification by time showed a main peak at the end of stress (SMD = 2.43, 95%CI = 1.59-3.27), followed by a progressive decrease (coefficient = -0.11, 95%CI = -0.19 to -0.17, p = 0.020). There was no significant change 1 h after the end of acute stress. Metaregressions showed an impact of mental stress (SMD = 2.04, 95%CI = 1.43-2.65), sex (SMD = 0.02, 95%CI = 0.00-0.04), age (SMD = -0.12, 95%CI = -0.2 to -0.05), and obesity (SMD = 0.31, 95%CI = -0.00 to 0.63). There was no difference whatever the type of fluid (blood or saliva) and the measurement technique used. Conclusions: DHEA is a biomarker of acute stress, with a short-term increase (1 h). DHEA increases following acute mental stress, whatever the type and duration of mental stress. Women, young people, and obese individuals had a higher response. Blood and saliva measures were comparable.
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Affiliation(s)
- Frédéric Dutheil
- Université Clermont Auvergne, CNRS, LaPSCo, Physiological and Psychosocial Stress, CHU Clermont-Ferrand, Occupational and Environmental Medicine, Wittyfit, Clermont-Ferrand, France
| | - Sarah de Saint Vincent
- Université Clermont Auvergne, Occupational and Environmental Medicine, Clermont-Ferrand, France
| | - Bruno Pereira
- CHU Clermont-Ferrand, CHU Clermont-Ferrand, Clinical Research and Innovation Direction, Clermont-Ferrand, France
| | - Jeannot Schmidt
- Université Clermont Auvergne, CNRS, LaPSCo, Physiological and Psychosocial Stress, CHU Clermont-Ferrand, Emergency Department, Clermont-Ferrand, France
| | - Farès Moustafa
- Université Clermont Auvergne, CHU Clermont-Ferrand, Emergency Department, Clermont-Ferrand, France
| | - Morteza Charkhabi
- Université Clermont Auvergne, CNRS, LaPSCo, Physiological and Psychosocial Stress, Clermont-Ferrand, France
| | - Jean-Baptiste Bouillon-Minois
- Université Clermont Auvergne, CNRS, LaPSCo, Physiological and Psychosocial Stress, CHU Clermont-Ferrand, Emergency Department, Clermont-Ferrand, France
| | - Maëlys Clinchamps
- CHU Clermont-Ferrand, CHU Clermont-Ferrand, Occupational and Environmental Medicine, Clermont-Ferrand, France
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22
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Bianchi VE, Rizzi L, Bresciani E, Omeljaniuk RJ, Torsello A. Androgen Therapy in Neurodegenerative Diseases. J Endocr Soc 2020; 4:bvaa120. [PMID: 33094209 PMCID: PMC7568521 DOI: 10.1210/jendso/bvaa120] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 08/18/2020] [Indexed: 12/14/2022] Open
Abstract
Neurodegenerative diseases, including Alzheimer disease (AD), Parkinson disease (PD), multiple sclerosis (MS), amyotrophic lateral sclerosis (ALS), and Huntington disease, are characterized by the loss of neurons as well as neuronal function in multiple regions of the central and peripheral nervous systems. Several studies in animal models have shown that androgens have neuroprotective effects in the brain and stimulate axonal regeneration. The presence of neuronal androgen receptors in the peripheral and central nervous system suggests that androgen therapy might be useful in the treatment of neurodegenerative diseases. To illustrate, androgen therapy reduced inflammation, amyloid-β deposition, and cognitive impairment in patients with AD. As well, improvements in remyelination in MS have been reported; by comparison, only variable results are observed in androgen treatment of PD. In ALS, androgen administration stimulated motoneuron recovery from progressive damage and regenerated both axons and dendrites. Only a few clinical studies are available in human individuals despite the safety and low cost of androgen therapy. Clinical evaluations of the effects of androgen therapy on these devastating diseases using large populations of patients are strongly needed.
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Affiliation(s)
- Vittorio Emanuele Bianchi
- Department of Endocrinology and Metabolism, Clinical Center Stella Maris, Strada Rovereta, Falciano, San Marino
| | - Laura Rizzi
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Elena Bresciani
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | | | - Antonio Torsello
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
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Hennessey EMP, Kepinska O, Haft SL, Chan M, Sunshine I, Jones C, Hancock R, Hoeft F. Hair cortisol and dehydroepiandrosterone concentrations: Associations with executive function in early childhood. Biol Psychol 2020; 155:107946. [PMID: 32805299 DOI: 10.1016/j.biopsycho.2020.107946] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 07/31/2020] [Accepted: 08/04/2020] [Indexed: 11/24/2022]
Abstract
Chronic stress during childhood negatively impacts cognition and physical and mental health. Exposure to stressors over time can cause hypothalamic-pituitary-adrenal (HPA) axis dysregulation, leading to abnormal stress hormone levels, which can be reflected in hair cortisol concentration (HCC) and hair dehydroepiandrosterone (DHEA) concentration. Although the use of HCC and DHEA to measure chronic stress in children is increasing, their effects on cognition (as indexed by executive function) remain unexplored. Accordingly, we aimed to investigate the associations of HCC, DHEA, and their ratio with measures of executive function (cognitive flexibility and working memory) in a sample of kindergarten children (N=100). We found that the expected negative association between HCC and working memory approached significance, and DHEA was significantly and positively related to cognitive flexibility. We discuss possible interpretations of our findings. Our results suggest promising areas for future investigation and encourage further exploration into HCC and DHEA as measures of chronic stress.
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Affiliation(s)
- Ella-Marie P Hennessey
- Department of Psychiatry and Weill Institute for Neurosciences and Dyslexia Center, University of California San Francisco, 401 Parnassus Ave., San Francisco, CA, 94143, USA; Multi-University Precision Learning Center, 401 Parnassus Ave., San Francisco, CA, 94143, USA; Department of Psychology, University of Denver, 2155 S. Race Street, Denver, CO, 80210, USA
| | - Olga Kepinska
- Department of Psychiatry and Weill Institute for Neurosciences and Dyslexia Center, University of California San Francisco, 401 Parnassus Ave., San Francisco, CA, 94143, USA
| | - Stephanie L Haft
- Department of Psychiatry and Weill Institute for Neurosciences and Dyslexia Center, University of California San Francisco, 401 Parnassus Ave., San Francisco, CA, 94143, USA; Department of Psychology, University of California Berkeley, 2121 Berkeley Way, Berkeley, CA, 94704, USA
| | - Megan Chan
- Department of Psychiatry and Weill Institute for Neurosciences and Dyslexia Center, University of California San Francisco, 401 Parnassus Ave., San Francisco, CA, 94143, USA; Multi-University Precision Learning Center, 401 Parnassus Ave., San Francisco, CA, 94143, USA; Department of Psychology, University of California Berkeley, 2121 Berkeley Way, Berkeley, CA, 94704, USA
| | - Isabel Sunshine
- Department of Psychiatry and Weill Institute for Neurosciences and Dyslexia Center, University of California San Francisco, 401 Parnassus Ave., San Francisco, CA, 94143, USA; Multi-University Precision Learning Center, 401 Parnassus Ave., San Francisco, CA, 94143, USA
| | - Chloe Jones
- Brain Imaging Research Center (BIRC) & Department of Psychological Sciences, University of Connecticut, 850 Bolton Road, Storrs, CT, 06269, USA
| | - Roeland Hancock
- Brain Imaging Research Center (BIRC) & Department of Psychological Sciences, University of Connecticut, 850 Bolton Road, Storrs, CT, 06269, USA
| | - Fumiko Hoeft
- Department of Psychiatry and Weill Institute for Neurosciences and Dyslexia Center, University of California San Francisco, 401 Parnassus Ave., San Francisco, CA, 94143, USA; Multi-University Precision Learning Center, 401 Parnassus Ave., San Francisco, CA, 94143, USA; Brain Imaging Research Center (BIRC) & Department of Psychological Sciences, University of Connecticut, 850 Bolton Road, Storrs, CT, 06269, USA; Haskins Laboratories, 300 George St #900, New Haven, CT, 06511, USA; Department of Neuropsychiatry, Keio University School of Medicine, 35 Shinanomachi Shinjuku, Tokyo, 160-8582 Japan.
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24
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Associations between dehydroepiandrosterone sulphate (DHEAS) and cognitive function in 5,061 older men and women in the English Longitudinal Study of Ageing. Psychoneuroendocrinology 2020; 117:104702. [PMID: 32388228 DOI: 10.1016/j.psyneuen.2020.104702] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 04/21/2020] [Accepted: 04/23/2020] [Indexed: 11/22/2022]
Abstract
Despite extensive observational and intervention research, the association between concentrations of dehydroepiandrosterone sulfate (DHEAS) and cognition at older ages remains unclear. This study investigated cross-sectional and longitudinal relationships between plasma DHEAS and cognitive function in a large nationally-representative cohort of men and women aged 50 and older. Data were analysed from 5061 participants (mean age 65.1, standard deviation 8.61) who completed memory, verbal fluency and processing speed tests at baseline and two years later. Age, education, marital status, paid employment, depressive symptoms, mobility impairment, coronary heart disease and diabetes were included as covariates, and analyses were stratified by gender. We found positive associations at baseline between DHEAS concentration and aggregate cognition after adjustment for covariates in men (β = 0.049, standard error (s.e.) 0.020, p = 0.015). Longitudinally, DHEAS at baseline predicted cognition two years later in men (β = 0.052, s.e. 0.020, p = 0.010), but not after baseline cognition was taken into account (β = 0.022, s.e. 0.016, p = 0.17), indicating that DHEAS was not associated with rate of cognitive decline. Similar associations were recorded at 6 year follow-up. No significant relationships between DHEAS and cognition were observed among women. We conclude that greater DHEAS concentrations are associated with cognition level at older ages in men, but are unlikely to play a functional role in cognitive decline.
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25
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Strac DS, Konjevod M, Perkovic MN, Tudor L, Erjavec GN, Pivac N. Dehydroepiandrosterone (DHEA) and its Sulphate (DHEAS) in Alzheimer's Disease. Curr Alzheimer Res 2020; 17:141-157. [PMID: 32183671 DOI: 10.2174/1567205017666200317092310] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 01/20/2020] [Accepted: 01/26/2020] [Indexed: 01/01/2023]
Abstract
BACKGROUND Neurosteroids Dehydroepiandrosterone (DHEA) and Dehydroepiandrosterone Sulphate (DHEAS) are involved in many important brain functions, including neuronal plasticity and survival, cognition and behavior, demonstrating preventive and therapeutic potential in different neuropsychiatric and neurodegenerative disorders, including Alzheimer's disease. OBJECTIVE The aim of the article was to provide a comprehensive overview of the literature on the involvement of DHEA and DHEAS in Alzheimer's disease. METHODS PubMed and MEDLINE databases were searched for relevant literature. The articles were selected considering their titles and abstracts. In the selected full texts, lists of references were searched manually for additional articles. RESULTS We performed a systematic review of the studies investigating the role of DHEA and DHEAS in various in vitro and animal models, as well as in patients with Alzheimer's disease, and provided a comprehensive discussion on their potential preventive and therapeutic applications. CONCLUSION Despite mixed results, the findings of various preclinical studies are generally supportive of the involvement of DHEA and DHEAS in the pathophysiology of Alzheimer's disease, showing some promise for potential benefits of these neurosteroids in the prevention and treatment. However, so far small clinical trials brought little evidence to support their therapy in AD. Therefore, large-scale human studies are needed to elucidate the specific effects of DHEA and DHEAS and their mechanisms of action, prior to their applications in clinical practice.
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Affiliation(s)
- Dubravka S Strac
- Laboratory for Molecular Neuropsychiatry, Division of Molecular Medicine, Rudjer Boskovic Institute, Zagreb, Croatia
| | - Marcela Konjevod
- Laboratory for Molecular Neuropsychiatry, Division of Molecular Medicine, Rudjer Boskovic Institute, Zagreb, Croatia
| | - Matea N Perkovic
- Laboratory for Molecular Neuropsychiatry, Division of Molecular Medicine, Rudjer Boskovic Institute, Zagreb, Croatia
| | - Lucija Tudor
- Laboratory for Molecular Neuropsychiatry, Division of Molecular Medicine, Rudjer Boskovic Institute, Zagreb, Croatia
| | - Gordana N Erjavec
- Laboratory for Molecular Neuropsychiatry, Division of Molecular Medicine, Rudjer Boskovic Institute, Zagreb, Croatia
| | - Nela Pivac
- Laboratory for Molecular Neuropsychiatry, Division of Molecular Medicine, Rudjer Boskovic Institute, Zagreb, Croatia
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26
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Hidalgo V, Almela M, Villada C, van der Meij L, Salvador A. Verbal performance during stress in healthy older people: Influence of dehydroepiandrosterone (DHEA) and cortisol reactivity. Biol Psychol 2019; 149:107786. [PMID: 31639406 DOI: 10.1016/j.biopsycho.2019.107786] [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: 12/29/2018] [Revised: 08/17/2019] [Accepted: 10/15/2019] [Indexed: 10/25/2022]
Abstract
The impact of stress on the dehydroepiandrosterone (DHEA) response in older population is understudied. This study investigated, in healthy older people, whether the DHEA and cortisol responses to the Trier Social Stress Test (TSST) was related to performance on this task. Both speech (rated by committee and self-rated) and arithmetic (number of mistakes) performance were assessed. Sixty-five participants (55-77 years old) were exposed to the TSST. Increases in negative affect, state anxiety, and cortisol levels could be observed, but there were no significant changes in positive affect or DHEA levels. Interestingly, a larger DHEA response was related to better verbal performance after controlling for the cortisol's reactivity. No relationships were found between hormonal responses and the arithmetic task performance. Our results suggest that, in healthy older people, an increase in DHEA levels in response to acute psychosocial stress may help them to cope with this stressor by increasing verbal performance.
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Affiliation(s)
- Vanesa Hidalgo
- Department of Psychology and Sociology, Area of Psychobiology, University of Zaragoza, Teruel, Spain; Aragon Health Research Institute, Zaragoza, Spain; Laboratory of Social Cognitive Neuroscience, IDOCAL, University of Valencia, Valencia, Spain.
| | - Mercedes Almela
- Health Department, Valencian International University (VIU), Valencia, Spain
| | - Carolina Villada
- Laboratory of Psychophysiology, Department of Behavioral and Cognitive Neurobiology, Institute of Neurobiology, UNAM, Querétaro, Mexico
| | - Leander van der Meij
- Department of Industrial Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands
| | - Alicia Salvador
- Laboratory of Social Cognitive Neuroscience, IDOCAL, University of Valencia, Valencia, Spain
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27
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Yilmaz C, Karali K, Fodelianaki G, Gravanis A, Chavakis T, Charalampopoulos I, Alexaki VI. Neurosteroids as regulators of neuroinflammation. Front Neuroendocrinol 2019; 55:100788. [PMID: 31513776 DOI: 10.1016/j.yfrne.2019.100788] [Citation(s) in RCA: 122] [Impact Index Per Article: 24.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 08/12/2019] [Accepted: 09/07/2019] [Indexed: 02/07/2023]
Abstract
Neuroinflammation is a physiological protective response in the context of infection and injury. However, neuroinflammation, especially if chronic, may also drive neurodegeneration. Neurodegenerative diseases, such as multiple sclerosis (MS), Alzheimer's disease (AD), Parkinson's disease (PD) and traumatic brain injury (TBI), display inflammatory activation of microglia and astrocytes. Intriguingly, the central nervous system (CNS) is a highly steroidogenic environment synthesizing steroids de novo, as well as metabolizing steroids deriving from the circulation. Neurosteroid synthesis can be substantially affected by neuroinflammation, while, in turn, several steroids, such as 17β-estradiol, dehydroepiandrosterone (DHEA) and allopregnanolone, can regulate neuroinflammatory responses. Here, we review the role of neurosteroids in neuroinflammation in the context of MS, AD, PD and TBI and describe underlying molecular mechanisms. Moreover, we introduce the concept that synthetic neurosteroid analogues could be potentially utilized for the treatment of neurodegenerative diseases in the future.
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Affiliation(s)
- Canelif Yilmaz
- Institute of Clinical Chemistry and Laboratory Medicine, University Clinic Carl Gustav Carus, TU Dresden, 01307 Dresden, Germany
| | - Kanelina Karali
- Department of Pharmacology, Medical School, University of Crete, Heraklion, Greece; Institute of Molecular Biology & Biotechnology, Foundation of Research & Technology-Hellas, Heraklion, Greece
| | - Georgia Fodelianaki
- Institute of Clinical Chemistry and Laboratory Medicine, University Clinic Carl Gustav Carus, TU Dresden, 01307 Dresden, Germany
| | - Achille Gravanis
- Department of Pharmacology, Medical School, University of Crete, Heraklion, Greece; Institute of Molecular Biology & Biotechnology, Foundation of Research & Technology-Hellas, Heraklion, Greece
| | - Triantafyllos Chavakis
- Institute of Clinical Chemistry and Laboratory Medicine, University Clinic Carl Gustav Carus, TU Dresden, 01307 Dresden, Germany; Centre for Cardiovascular Science, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Ioannis Charalampopoulos
- Department of Pharmacology, Medical School, University of Crete, Heraklion, Greece; Institute of Molecular Biology & Biotechnology, Foundation of Research & Technology-Hellas, Heraklion, Greece
| | - Vasileia Ismini Alexaki
- Institute of Clinical Chemistry and Laboratory Medicine, University Clinic Carl Gustav Carus, TU Dresden, 01307 Dresden, Germany.
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Biological Aging Parameters Can Be Improved After Autologous Adipose-Derived Stem Cell Injection. J Craniofac Surg 2019; 30:652-658. [PMID: 30394974 DOI: 10.1097/scs.0000000000004932] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Biological aging (BA) is a comprehensive assessment tool for elderly persons. The authors aimed to develop a rat model that can be used to assess BA by evaluating various blood, biochemical, and hormonal parameters and demonstrate that the intravenous administration of autologous adipose-derived stem cells (ADSCs) improves BA. Twelve elderly (aged 20 months) male Sprague-Dawley rats were used in this study and divided into 2 groups: autologous ADSC administration (n = 6) and saline administration (n = 6). The complete blood count, biochemical and hormonal parameters, and antioxidant potential were evaluated before harvesting the rat inguinal fat tissue and intravenous ADSC administration as well as at 1, 3, and 5 weeks after ADSC administration. Adipose-derived stem cells administration regulated blood content, biochemical parameters, renal function, and antioxidant enzymes in elderly rats. Furthermore, changes in several hormonal levels were identified in the ADSC administration group compared with the saline administration group. An assessment model of BA in elderly rats was successfully developed after the intravenous administration of autologous ADSCs. The authors suggest that intravenously injected ADSC treatment may be a valuable method to improve BA.
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Toh YL, Shariq Mujtaba J, Bansal S, Yeo A, Shwe M, Lau AJ, Chan A. Prechemotherapy Levels of Plasma Dehydroepiandrosterone and Its Sulfated Form as Predictors of Cancer-Related Cognitive Impairment in Patients with Breast Cancer Receiving Chemotherapy. Pharmacotherapy 2019; 39:553-563. [PMID: 30892712 PMCID: PMC6635742 DOI: 10.1002/phar.2259] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Study Objective Dehydroepiandrosterone (DHEA) and its sulfated form (DHEAS)—jointly referred to as DHEA(S)—are neurosteroids known to regulate brain development and function that have been found to be positively correlated with cognitive function. It is unknown whether prechemotherapy plasma DHEA(S) levels are associated with the onset of cancer‐related cognitive impairment (CRCI). The objective of this study was to evaluate whether an association exists between prechemotherapy plasma DHEA(S) levels and onset of CRCI in patients with breast cancer receiving chemotherapy. Design Multicenter, prospective cohort study. Setting Two specialized cancer centers in Singapore. Patients Eighty‐one patients with early‐stage breast cancer (stages I–III) who had no prior exposure to chemotherapy and/or radiotherapy and were scheduled to receive anthracycline‐based or taxane‐based chemotherapy treatment with curative intent. Measurements and Main Results Patients completed assessments for self‐perceived and objective cognitive function at three time points: prechemotherapy (T1), during chemotherapy (T2), and after chemotherapy (T3). Plasma samples were collected prior to chemotherapy, and DHEA(S) levels were quantified by using ultra–high‐performance liquid chromatography–tandem mass spectrometry. Multivariable logistic regression was used to adjust for clinically important factors and to evaluate the association between prechemotherapy plasma DHEA(S) levels and CRCI. Mean ± SD age was 48.9 ± 9.3 years, with 27.8% of patients experiencing clinically significant cognitive impairment based on global Functional Assessment of Cancer Therapy–Cognitive Function scores. The mean ± SD prechemotherapy plasma DHEAS and DHEA levels were 1.61 ± 0.91 μmol/L and 19.21 ± 13.13 nmol/L, respectively. Prechemotherapy DHEAS levels were found to be associated with impairment in the self‐perceived cognitive domains of verbal fluency (adjusted odds ratio [OR] 0.27, 95% confidence interval [CI] 0.08–0.96) and mental acuity (adjusted OR 0.25, 95% CI 0.08–0.74). Conversely, DHEA levels were not associated with impairment in any cognitive subdomains. Conclusion Our findings suggest that patients with higher prechemotherapy DHEAS levels had lower odds of developing self‐perceived cognitive impairment. Future studies are required to further investigate the effect of DHEA(S) on specific cognitive domains and to validate our findings in independent cohorts.
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Affiliation(s)
- Yi Long Toh
- Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore
| | | | - Sumit Bansal
- Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore
| | - Angie Yeo
- Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore
| | - Maung Shwe
- Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore.,Department of Pharmacy, National Cancer Centre Singapore, Singapore
| | - Aik Jiang Lau
- Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore.,Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Alexandre Chan
- Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore.,Department of Pharmacy, National Cancer Centre Singapore, Singapore.,Oncology Academic Clinical Program, Duke-National University of Singapore Medical School, Singapore
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30
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Ha MS, Son WM. Combined exercise is a modality for improving insulin resistance and aging-related hormone biomarkers in elderly Korean women. Exp Gerontol 2018; 114:13-18. [PMID: 30359693 DOI: 10.1016/j.exger.2018.10.012] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 10/16/2018] [Accepted: 10/17/2018] [Indexed: 12/01/2022]
Abstract
BACKGROUND The functional decline of the endocrine and immune systems with aging causes changes in the regulation of the body's metabolism and defense functions. Although it is impossible to stop aging artificially, regular exercises reportedly delay aging and have positive effects on senile diseases. The improvements in insulin resistance values and aging-related hormones in elderly women after combined exercises have not been effectively elucidated. OBJECTIVE In this study, we aimed to examine the impact of combined exercise on insulin resistance and aging-related hormones in elderly women. METHODS Twenty elderly Korean women were randomly assigned to a "non-exercise" (n = 10) or combined exercise group (n = 10). The exercise group performed both anaerobic and aerobic exercises for 12 weeks, three times per week. Exercise intensity was increased gradually, from 40% to 70% of the heart rate reserve (HRR) every 3 weeks. Insulin resistance, growth hormone, IGF-1, DHEA-S, and estrogen were measured before and after the 12-week intervention. RESULTS The main effect was found in the glucose level for a time, which significantly decreased in the exercise group. The insulin level and HOMA-IR showed significant interaction effects and increased significantly in the control group. The GH level showed significant interaction effects and increased significantly in the exercise group. The IGF-1 level showed significant interaction effects, but not significantly within and between groups. The DHEA-S level revealed interaction effects and the main effect for a time and significantly increased in the exercise group. The estrogen level exhibited an interaction effect and increased significantly in the exercise group. After the 12-week combined exercise intervention, no significant difference was observed between groups. DISCUSSION This study has shown that 12-week combined exercise is useful for improving insulin resistance and GH, IGF-1, and DHEA-S levels in elderly women. Thus, this study provides evidence that combined exercise is a useful therapeutic method to decrease insulin resistance and stimulate the secretion of aging-related hormones in elderly women.
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Affiliation(s)
- Min-Seong Ha
- Laboratory of Exercise Biochemistry and Neuroendocrinology, Faculty of Health and Sports Sciences, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8574, Japan.
| | - Won-Mok Son
- Department of Physical Education, Pusan National University, 2 Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan 46241, Republic of Korea.
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31
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Wall K, Stark J, Schillaci A, Saulnier ET, McLaren E, Striegnitz K, Cohen BD, Arciero PJ, Kramer AF, Anderson-Hanley C. The Enhanced Interactive Physical and Cognitive Exercise System (iPACES TM v2.0): Pilot Clinical Trial of an In-Home iPad-Based Neuro-Exergame for Mild Cognitive Impairment (MCI). J Clin Med 2018; 7:E249. [PMID: 30200183 PMCID: PMC6162846 DOI: 10.3390/jcm7090249] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 08/17/2018] [Accepted: 08/24/2018] [Indexed: 12/20/2022] Open
Abstract
Given increasing longevity worldwide, older adults and caregivers are seeking ways to curb cognitive decline especially for those with mild cognitive impairment (MCI, now mild neurocognitive disorder, mNCD, Diagnostic and Statistical Manual of Mental Disorders, 5th ed. (DSM-V). This quasi-experimental, within-subjects pilot clinical trial was designed to replicate and extend the study of cognitive benefits for MCI by improving upon our prior interactive Physical and Cognitive Exercise Study (iPACESTM v1.0) by increasing the usability of the neuro-exergame and exploring possible underlying neurobiological mechanisms. Older adults were enrolled in a three-month, in-home trial of a portable neuro-exergame (iPACES™ v2.0) where participants pedaled and steered along a virtual bike path (Memory Lane™). Neuropsychological function was assessed at baseline after component familiarization intervals (e.g., two weeks of exercise-only, game-only, etc.) and after three months of interactive neuro-exergame intervention. Fourteen participants were enrolled in the study and seven completed the final evaluation. Intent-to-treat analyses were conducted with imputed missing data (total n = 14). Significant improvement in executive function (Stroop) was found (d = 0.68, p = 0.02) only. Changes in salivary biomarkers (cortisol and insulin-like growth factor 1; IGF-1) were significantly associated with improved cognition. Further research is needed, but pilot data suggest that a portable in-home neuro-exergame may be an additional, practical tool to fight back against cognitive decline and dementia.
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Affiliation(s)
- Kathryn Wall
- Healthy Aging & Neuropsychology Lab, Union College, Schenectady, NY 12308, USA.
- Biology Department, Union College, Schenectady, NY 12308, USA.
| | - Jessica Stark
- Healthy Aging & Neuropsychology Lab, Union College, Schenectady, NY 12308, USA.
| | - Alexa Schillaci
- Healthy Aging & Neuropsychology Lab, Union College, Schenectady, NY 12308, USA.
| | | | | | - Kristina Striegnitz
- Computer Science Department & Neuroscience Program, Union College, Schenectady, NY 12308, USA.
| | - Brian D Cohen
- Biology Department, Union College, Schenectady, NY 12308, USA.
| | - Paul J Arciero
- Health & Human Physiological Sciences Department, Skidmore College, Saratoga Springs, NY 12866, USA.
| | - Arthur F Kramer
- Center for Cognitive & Brain Health, Psychology Department, Northeastern University, Boston, NY 02115, USA.
| | - Cay Anderson-Hanley
- Healthy Aging & Neuropsychology Lab, Union College, Schenectady, NY 12308, USA.
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DHEA inhibits acute microglia-mediated inflammation through activation of the TrkA-Akt1/2-CREB-Jmjd3 pathway. Mol Psychiatry 2018; 23:1410-1420. [PMID: 28894299 DOI: 10.1038/mp.2017.167] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Revised: 05/05/2017] [Accepted: 06/20/2017] [Indexed: 12/16/2022]
Abstract
Dehydroepiandrosterone (DHEA) is the most abundant circulating steroid hormone in humans, produced by the adrenals, the gonads and the brain. DHEA was previously shown to bind to the nerve growth factor receptor, tropomyosin-related kinase A (TrkA), and to thereby exert neuroprotective effects. Here we show that DHEA reduces microglia-mediated inflammation in an acute lipopolysaccharide-induced neuro-inflammation model in mice and in cultured microglia in vitro. DHEA regulates microglial inflammatory responses through phosphorylation of TrkA and subsequent activation of a pathway involving Akt1/Akt2 and cAMP response element-binding protein. The latter induces the expression of the histone 3 lysine 27 (H3K27) demethylase Jumonji d3 (Jmjd3), which thereby controls the expression of inflammation-related genes and microglial polarization. Together, our data indicate that DHEA-activated TrkA signaling is a potent regulator of microglia-mediated inflammation in a Jmjd3-dependent manner, thereby providing the platform for potential future therapeutic interventions in neuro-inflammatory pathologies.
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33
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Bourque M, Morissette M, Di Paolo T. Repurposing sex steroids and related drugs as potential treatment for Parkinson's disease. Neuropharmacology 2018; 147:37-54. [PMID: 29649433 DOI: 10.1016/j.neuropharm.2018.04.005] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 03/27/2018] [Accepted: 04/05/2018] [Indexed: 01/19/2023]
Abstract
Parkinson's disease (PD) is a neurodegenerative disorder for which a greater prevalence and incidence is described in men. This suggests a protective effect of sex hormones in the brain. Therefore, steroids and drugs to treat endocrine conditions could have additional application for PD. Here, we review the protective effect of sex hormones, particularly estrogens, progesterone, androgens and dehydroepiandrosterone, in animal models of PD and also in human studies. Data also support that drugs affecting estrogen neurotransmission such as selective estrogen receptor modulators or affecting steroid metabolism with 5α-reductase inhibitors could be repositioned for treatment of PD. Sex steroids are also modulator of neurotransmission, thus they could repurposed to treat PD motor symptoms and to modulate the response to PD medication. No drug is yet available to limit PD progression. PD is a complex disease implicating multiple pathological processes and a therapeutic strategy using drugs with several mechanisms of action, such as sex steroids and endocrine drugs are interesting repositioning options for symptomatic treatment and disease-modifying activity for PD. This article is part of the Special Issue entitled 'Drug Repurposing: old molecules, new ways to fast track drug discovery and development for CNS disorders'.
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Affiliation(s)
- Mélanie Bourque
- Neuroscience Research Unit, Centre Hospitalier Universitaire de Québec, CHUL, Quebec City, G1V 4G2, Canada; Faculty of Pharmacy, Université Laval, Quebec City, G1K 7P4, Canada
| | - Marc Morissette
- Neuroscience Research Unit, Centre Hospitalier Universitaire de Québec, CHUL, Quebec City, G1V 4G2, Canada
| | - Thérèse Di Paolo
- Neuroscience Research Unit, Centre Hospitalier Universitaire de Québec, CHUL, Quebec City, G1V 4G2, Canada; Faculty of Pharmacy, Université Laval, Quebec City, G1K 7P4, Canada.
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Clark BJ, Prough RA, Klinge CM. Mechanisms of Action of Dehydroepiandrosterone. VITAMINS AND HORMONES 2018; 108:29-73. [PMID: 30029731 DOI: 10.1016/bs.vh.2018.02.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Dehydroepiandrosterone (3β-hydroxy-5-androsten-17-one, DHEA) and its sulfated metabolite DHEA-S are the most abundant steroids in circulation and decline with age. Rodent studies have shown that DHEA has a wide variety of effects on liver, kidney, adipose, reproductive tissues, and central nervous system/neuronal function. The mechanisms by which DHEA and DHEA-S impart their physiological effects may be direct actions on plasma membrane receptors, including a DHEA-specific, G-protein-coupled receptor in endothelial cells; various neuroreceptors, e.g., aminobutyric-acid-type A, N-methyl-d-aspartate (NMDA), and sigma-1 (S1R) receptors; by binding steroid receptors: androgen and estrogen receptors (ARs, ERα, or ERβ); or by their metabolism to more potent sex steroid hormones, e.g., testosterone, dihydrotestosterone, and estradiol, which bind with higher affinity to ARs and ERs. DHEA inhibits voltage-gated T-type calcium channels. DHEA activates peroxisome proliferator-activated receptor (PPARα) and CAR by a mechanism apparently involving PP2A, a protein phosphatase dephosphorylating PPARα and CAR to activate their transcriptional activity. We review our recent study showing DHEA activated GPER1 (G-protein-coupled estrogen receptor 1) in HepG2 cells to stimulate miR-21 transcription. This chapter reviews some of the physiological, biochemical, and molecular mechanisms of DHEA and DHEA-S activity.
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Affiliation(s)
- Barbara J Clark
- Department of Biochemistry and Molecular Genetics, Center for Genetics and Molecular Medicine, University of Louisville School of Medicine, Louisville, KY, United States
| | - Russell A Prough
- Department of Biochemistry and Molecular Genetics, Center for Genetics and Molecular Medicine, University of Louisville School of Medicine, Louisville, KY, United States
| | - Carolyn M Klinge
- Department of Biochemistry and Molecular Genetics, Center for Genetics and Molecular Medicine, University of Louisville School of Medicine, Louisville, KY, United States.
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Walther A, Philipp M, Lozza N, Ehlert U. The rate of change in declining steroid hormones: a new parameter of healthy aging in men? Oncotarget 2018; 7:60844-60857. [PMID: 27589836 PMCID: PMC5308620 DOI: 10.18632/oncotarget.11752] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Accepted: 07/14/2016] [Indexed: 11/25/2022] Open
Abstract
Research on healthy aging in men has increasingly focused on age-related hormonal changes. Testosterone (T) decline is primarily investigated, while age-related changes in other sex steroids (dehydroepiandrosterone [DHEA], estradiol [E2], progesterone [P]) are mostly neglected. An integrated hormone parameter reflecting aging processes in men has yet to be identified. 271 self-reporting healthy men between 40 and 75 provided both psychometric data and saliva samples for hormone analysis. Correlation analysis between age and sex steroids revealed negative associations for the four sex steroids (T, DHEA, E2, and P). Principal component analysis including ten salivary analytes identified a principal component mainly unifying the variance of the four sex steroid hormones. Subsequent principal component analysis including the four sex steroids extracted the principal component of declining steroid hormones (DSH). Moderation analysis of the association between age and DSH revealed significant moderation effects for psychosocial factors such as depression, chronic stress and perceived general health. In conclusion, these results provide further evidence that sex steroids decline in aging men and that the integrated hormone parameter DSH and its rate of change can be used as biomarkers for healthy aging in men. Furthermore, the negative association of age and DSH is moderated by psychosocial factors.
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Affiliation(s)
- Andreas Walther
- Clinical Psychology and Psychotherapy, University of Zurich, Zurich, Switzerland.,University Research Priority Program - Dynamics of Healthy Aging, University of Zurich, Zurich, Switzerland
| | - Michel Philipp
- Psychological Methods, Evaluation and Statistics, University of Zurich, Zurich, Switzerland
| | - Niclà Lozza
- Clinical Psychology and Psychotherapy, University of Zurich, Zurich, Switzerland
| | - Ulrike Ehlert
- Clinical Psychology and Psychotherapy, University of Zurich, Zurich, Switzerland.,University Research Priority Program - Dynamics of Healthy Aging, University of Zurich, Zurich, Switzerland
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Zhao Z, Gong W, Liu L, Wang M, Tang Z, Mohammadtursun N, Lu L, Liu J, Li M, Lv Y, Mo S, Ma W, Dong J. Urinary 8-hydroxydeoxyguanosine is a better biomarker of aging in non-smokers. TRADITIONAL MEDICINE AND MODERN MEDICINE 2018. [DOI: 10.1142/s2575900018500039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Objective: The aim of this study is finding an optimal and convenient aging marker. Method: The information of participants’ occupation, family background, life style, physical condition, etc. was obtained by a self-administered questionnaire. Spot urine and saliva samples were collected during the early morning after fasting overnight. 8-hydroxydeoxygunaosine (8-OHdG), 8-iso-prostaglandin F2[Formula: see text] (8-isoPGF2[Formula: see text]), advanced oxidation protein products (AOPPs), malondialdehyde (MDA), and dehydroepian drosterone sulfate (DHEA-S) were measured by ELISA. Results: Around 112 non-smokers (males/females [Formula: see text] 61/51; mean age [Formula: see text] 44.9 years) were eligible and analyzed in this study. The mean urinary 8-OHdG level was [Formula: see text] (ng/mmol, creatinine) and mean 8-isoPGF2[Formula: see text] level was [Formula: see text] (pg/mmoL, creatinine). In saliva, the mean level of AOPPs, MDA, and DHEA-S was [Formula: see text] ([Formula: see text]mol/L), [Formula: see text] ([Formula: see text]mol/L) and [Formula: see text] (ng/mL), respectively. After analysis in multiple regression model, urinary 8-OHdG was influenced by age and tea consumption ([Formula: see text]); urinary 8-isoPGF2[Formula: see text] level was correlated with gender ([Formula: see text]); salivary DHEA-S was related to gender ([Formula: see text]) and marital status ([Formula: see text]); AOPPs and MDA in saliva presented no relationships with those factors. Conclusion: Among healthy non-smokers, urinary 8-OHdG is the best aging biomarker comparing to other markers.
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Affiliation(s)
- Zhengxiao Zhao
- Institute of Integrated Traditional Chinese and Western Medicine, Huashan Hospital, Fudan University, Shanghai, P. R. China
- Institutes of Integrative Medicine, Fudan University, Shanghai, P. R. China
| | - Weiyi Gong
- Institute of Integrated Traditional Chinese and Western Medicine, Huashan Hospital, Fudan University, Shanghai, P. R. China
- Institutes of Integrative Medicine, Fudan University, Shanghai, P. R. China
| | - Lumei Liu
- Institute of Integrated Traditional Chinese and Western Medicine, Huashan Hospital, Fudan University, Shanghai, P. R. China
- Institutes of Integrative Medicine, Fudan University, Shanghai, P. R. China
| | - Meng Wang
- Physical Examination Center, Huashan Hospital, Fudan University, Shanghai, P. R. China
| | - Zihui Tang
- Institute of Integrated Traditional Chinese and Western Medicine, Huashan Hospital, Fudan University, Shanghai, P. R. China
- Institutes of Integrative Medicine, Fudan University, Shanghai, P. R. China
| | - Nabijan Mohammadtursun
- Institute of Integrated Traditional Chinese and Western Medicine, Huashan Hospital, Fudan University, Shanghai, P. R. China
- Institutes of Integrative Medicine, Fudan University, Shanghai, P. R. China
| | - Linwei Lu
- Institute of Integrated Traditional Chinese and Western Medicine, Huashan Hospital, Fudan University, Shanghai, P. R. China
- Institutes of Integrative Medicine, Fudan University, Shanghai, P. R. China
| | - Jiaqi Liu
- Institute of Integrated Traditional Chinese and Western Medicine, Huashan Hospital, Fudan University, Shanghai, P. R. China
- Institutes of Integrative Medicine, Fudan University, Shanghai, P. R. China
| | - Mihui Li
- Institute of Integrated Traditional Chinese and Western Medicine, Huashan Hospital, Fudan University, Shanghai, P. R. China
- Institutes of Integrative Medicine, Fudan University, Shanghai, P. R. China
| | - Yibao Lv
- Institute of Integrated Traditional Chinese and Western Medicine, Huashan Hospital, Fudan University, Shanghai, P. R. China
- Institutes of Integrative Medicine, Fudan University, Shanghai, P. R. China
| | - Shuming Mo
- Institute of Integrated Traditional Chinese and Western Medicine, Huashan Hospital, Fudan University, Shanghai, P. R. China
- Institutes of Integrative Medicine, Fudan University, Shanghai, P. R. China
| | - Wenjuan Ma
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, P. R. China
| | - Jingcheng Dong
- Institute of Integrated Traditional Chinese and Western Medicine, Huashan Hospital, Fudan University, Shanghai, P. R. China
- Institutes of Integrative Medicine, Fudan University, Shanghai, P. R. China
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Abstract
Despite an increased understanding of the pathogenesis of osteoarthritis (OA) and the availability of a number of drugs designed to ameliorate its symptoms, a successful disease-modifying therapy remains elusive. Recent lines of evidence suggest that dehydroepiandrosterone (DHEA), a 19-carbon steroid hormone classified as an adrenal androgen, exerts a chondroprotective effect in OA patients, and it has been proven to be an effective DMOAD candidate that slows OA progression. However, the exact mechanisms underlying its anti-OA effect is largely unknown. This review summarizes emerging observations from studies of cell biology, preclinical animal studies, and preliminary clinical trials and describes the findings of investigations on this topic to develop an initial blueprint of the mechanisms by which DHEA slows OA progression. Presently, studies on DMOADs are increasing in importance but have met limited success. Encouragingly, the current data on DHEA are promising and may prove that DHEA-based treatment is efficacious for preventing and slowing human OA progression.
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Racchi M, Buoso E, Ronfani M, Serafini MM, Galasso M, Lanni C, Corsini E. Role of Hormones in the Regulation of RACK1 Expression as a Signaling Checkpoint in Immunosenescence. Int J Mol Sci 2017; 18:ijms18071453. [PMID: 28684670 PMCID: PMC5535944 DOI: 10.3390/ijms18071453] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 06/22/2017] [Accepted: 06/30/2017] [Indexed: 02/07/2023] Open
Abstract
Immunosenescence defines the decline in immune function that occurs with aging. This has been associated, at least in part, with defective cellular signaling via protein kinase C (PKC) signal transduction pathways. Our data suggest reduced PKC activation and consequently reduced response to lipopolysaccharide (LPS) stimulation and cytokine release. The lack of PKC activation seems to be dependent on the reduced expression of the receptor for activated C kinase 1 (RACK1), a scaffolding protein involved in multiple signal transduction cascades. The defective expression of RACK1 may be dependent on age-related alteration of the balance between the adrenal hormones cortisol and dehydroepiandrosterone (DHEA). DHEA levels reduce with aging, while cortisol levels remain substantially unchanged, resulting in an overall increase in the cortisol:DHEA ratio. These hormonal changes are significant in the context of RACK1 expression and signaling function because DHEA administration in vivo and in vitro can restore the levels of RACK1 and the function of the PKC signaling cascade in aged animals and in human cells. In contrast, there is evidence that cortisol can act as a negative transcriptional regulator of RACK1 expression. The rack1 gene promoter contains a glucocorticoid responsive element that is also involved in androgen signaling. Furthermore DHEA may have an indirect influence on the post-transcriptional regulation of the functions of the glucocorticoid receptor. In this review, we will examine the role of the hormonal regulation of rack1 gene transcriptional regulation and the consequences on signaling and function in immune cells and immunosenescence.
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Affiliation(s)
- Marco Racchi
- Department of Drug Sciences, Università degli Studi di Pavia, Viale Taramelli 12/14, 27100 Pavia, Italy.
| | - Erica Buoso
- Department of Drug Sciences, Università degli Studi di Pavia, Viale Taramelli 12/14, 27100 Pavia, Italy.
| | - Melania Ronfani
- Department of Drug Sciences, Università degli Studi di Pavia, Viale Taramelli 12/14, 27100 Pavia, Italy.
| | - Melania M Serafini
- Department of Drug Sciences, Università degli Studi di Pavia, Viale Taramelli 12/14, 27100 Pavia, Italy.
- Scuola Universitaria Superiore IUSS Pavia, Piazza della Vittoria 15, 27100 Pavia, Italy.
| | - Marilisa Galasso
- Department of Drug Sciences, Università degli Studi di Pavia, Viale Taramelli 12/14, 27100 Pavia, Italy.
| | - Cristina Lanni
- Department of Drug Sciences, Università degli Studi di Pavia, Viale Taramelli 12/14, 27100 Pavia, Italy.
| | - Emanuela Corsini
- Laboratory of Toxicology, Department of Environmental Science and Policy, Università degli Studi di Milano, Via Balzaretti 9, 20133 Milano, Italy.
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Transcriptional regulation of RACK1 and modulation of its expression: Role of steroid hormones and significance in health and aging. Cell Signal 2017; 35:264-271. [DOI: 10.1016/j.cellsig.2017.02.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Revised: 02/07/2017] [Accepted: 02/08/2017] [Indexed: 12/27/2022]
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Abstract
The brain has long been known as a dimorphic organ and as a target of sex steroids. It is also a site for their synthesis. Sex steroids in numerous ways can modify cerebral physiology, and along with many processes adult neurogenesis is also modulated by sex steroids. This review will focus on the effects of the main steroids, estrogens, androgens and progestogens, and unveil some aspects of their partly disclosed mechanisms of actions. Gonadal steroids act on different steps of neurogenesis: cell proliferation seems to be increased by estrogens only, while androgens and progestogens favor neuronal renewal by increasing cell survival; differentiation is a common target. Aging is characterized by a cognitive deficiency, paralleled by a decrease in the rate of neuronal renewal and in the levels of circulating gonadal hormones. Therefore, the effects of gonadal hormones on the aging brain are important to consider. The review will also be expanded to related molecules which are agonists to the nuclear receptors. Sex steroids can modify adult neuronal renewal and the extensive knowledge of their actions on neurogenesis is essential, as it can be a leading pathway to therapeutic perspectives.
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Affiliation(s)
- Christine Heberden
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, 78350 Jouy-en-Josas, France.
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41
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Humby T, Fisher A, Allen C, Reynolds M, Hartman A, Giegling I, Rujescu D, Davies W. A genetic variant within STS previously associated with inattention in boys with attention deficit hyperactivity disorder is associated with enhanced cognition in healthy adult males. Brain Behav 2017; 7:e00646. [PMID: 28293481 PMCID: PMC5346528 DOI: 10.1002/brb3.646] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 12/22/2016] [Indexed: 12/21/2022] Open
Abstract
INTRODUCTION The enzyme steroid sulfatase (STS) converts sulfated steroids to their non-sulfated forms. Deficiency for this enzyme is associated with inattention but preserved response control. The polymorphism rs17268988 within the X-linked STS gene is associated with inattentive, but not other, symptoms in boys with attention deficit hyperactivity disorder (ADHD). METHODS We initially tested whether rs17268988 genotype was associated with attention, response control, and underlying aspects of cognition, using questionnaires and neuropsychological tasks, in two independent cohorts of healthy adult males. In an additional analysis based upon existing data, the performance of mice with genetic or pharmacological manipulations of the STS axis under attentionally demanding conditions was investigated. RESULTS G-allele carriers at rs17268988 exhibited reduced reaction time, enhanced attention, and reduced reaction time variability relative to C-allele carriers. Mice with genetic or pharmacological manipulations of the STS axis were shown to have perturbed reaction time variability. DISCUSSION Our findings provide additional support for an association between rs17268988 genotype and attention, which may be partially mediated by reaction time variability; they also indicate that, in contrast to the situation in boys with ADHD, in healthy men, the G-allele at rs17268988 is associated with enhanced cognition. As reaction time variability is a predictor of well-being, rs17268988 genotype may represent a biomarker for long-term health.
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Affiliation(s)
- Trevor Humby
- School of Psychology Cardiff University Cardiff UK
| | - Amelia Fisher
- Division of Psychological Medicine and Clinical Neurosciences Medical Research Council Centre for Neuropsychiatric Genetics and Genomics School of Medicine Cardiff University Cardiff UK
| | | | | | - Annette Hartman
- Department of Psychiatry Martin Luther University of Halle Halle Germany
| | - Ina Giegling
- Department of Psychiatry Martin Luther University of Halle Halle Germany
| | - Dan Rujescu
- Department of Psychiatry Martin Luther University of Halle Halle Germany
| | - William Davies
- School of Psychology Cardiff University Cardiff UK; Division of Psychological Medicine and Clinical Neurosciences Medical Research Council Centre for Neuropsychiatric Genetics and Genomics School of Medicine Cardiff University Cardiff UK; Neuroscience and Mental Health Research Institute Cardiff University Cardiff UK
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Kozłowska E, Urbaniak M, Kancelista A, Dymarska M, Kostrzewa-Susłow E, Stępień Ł, Janeczko T. Biotransformation of dehydroepiandrosterone (DHEA) by environmental strains of filamentous fungi. RSC Adv 2017. [DOI: 10.1039/c7ra04608a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Study on the ability of selected filamentous fungus species to transform dehydroepiandrosterone was performed (DHEA) and interesting DHEA derivatives were obtained with high yield.
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Affiliation(s)
- Ewa Kozłowska
- Department of Chemistry
- Wrocław University of Environmental and Life Sciences
- 50-375 Wrocław
- Poland
| | - Monika Urbaniak
- Department of Pathogen Genetics and Plant Resistance
- Institute of Plant Genetics
- Polish Academy of Sciences
- 60-479 Poznań
- Poland
| | - Anna Kancelista
- Department of Biotechnology and Food Microbiology
- Wrocław University of Environmental and Life Sciences
- 51-630 Wrocław
- Poland
| | - Monika Dymarska
- Department of Chemistry
- Wrocław University of Environmental and Life Sciences
- 50-375 Wrocław
- Poland
| | - Edyta Kostrzewa-Susłow
- Department of Chemistry
- Wrocław University of Environmental and Life Sciences
- 50-375 Wrocław
- Poland
| | - Łukasz Stępień
- Department of Pathogen Genetics and Plant Resistance
- Institute of Plant Genetics
- Polish Academy of Sciences
- 60-479 Poznań
- Poland
| | - Tomasz Janeczko
- Department of Chemistry
- Wrocław University of Environmental and Life Sciences
- 50-375 Wrocław
- Poland
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de Menezes KJ, Peixoto C, Nardi AE, Carta MG, Machado S, Veras AB. Dehydroepiandrosterone, Its Sulfate and Cognitive Functions. Clin Pract Epidemiol Ment Health 2016; 12:24-37. [PMID: 27346998 PMCID: PMC4894834 DOI: 10.2174/1745017901612010024] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2015] [Revised: 09/27/2015] [Accepted: 12/02/2015] [Indexed: 12/21/2022]
Abstract
To present a review of cross-sectional and longitudinal studies that investigate the relationship between the hormones Dehydroepiandrosterone (DHEA) and Dehydroepiandrosterone sulfate (DHEA-S) and cognition. Methods: The cognition items included in this review were global cognitive function, memory, attention, executive function, intelligence, perception and visuospatial ability. A systematic review was proceeded using three databases: PubMed, ISI Web of Science, and PsycINFO. Results: Two thousand fifty five references about cognition and hormones were found; 772 duplicated references were excluded, resulting in 1.283 references to be evaluated. According to exclusion and inclusion criteria, 25 references were selected. A positive correlation between DHEA-S blood levels and global cognition was found in women and men. Other positive correlations between DHEA-S and working memory, attention and verbal fluency were found only in women. The DHEA effect on cognition is limited to one study conducted among young men with high-doses.
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Affiliation(s)
- Karina Junqueira de Menezes
- Laboratory of Panic and Respiration, Institute of Psychiatry, UFRJ (Federal University of Rio de Janeiro), Brazil
| | - Clayton Peixoto
- Laboratory of Panic and Respiration, Institute of Psychiatry, UFRJ (Federal University of Rio de Janeiro), Brazil
| | - Antonio Egidio Nardi
- Laboratory of Panic and Respiration, Institute of Psychiatry, UFRJ (Federal University of Rio de Janeiro), Brazil
| | - Mauro Giovanni Carta
- Department of Public Health, Clinical and Molecular Medicine, University of Cagliari, Cagliari, Italy
| | - Sérgio Machado
- Laboratory of Panic and Respiration, Institute of Psychiatry, UFRJ (Federal University of Rio de Janeiro), Brazil
| | - André Barciela Veras
- Dom Bosco Catholic University (UCDB), Laboratory of Panic and Respiration, Institute of Psychiatry, UFRJ, Brazil
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Prough RA, Clark BJ, Klinge CM. Novel mechanisms for DHEA action. J Mol Endocrinol 2016; 56:R139-55. [PMID: 26908835 DOI: 10.1530/jme-16-0013] [Citation(s) in RCA: 106] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Accepted: 02/23/2016] [Indexed: 01/02/2023]
Abstract
Dehydroepiandrosterone (3β-hydroxy-5-androsten-17-one, DHEA), secreted by the adrenal cortex, gastrointestinal tract, gonads, and brain, and its sulfated metabolite DHEA-S are the most abundant endogeneous circulating steroid hormones. DHEA actions are classically associated with age-related changes in cardiovascular tissues, female fertility, metabolism, and neuronal/CNS functions. Early work on DHEA action focused on the metabolism to more potent sex hormones, testosterone and estradiol, and the subsequent effect on the activation of the androgen and estrogen steroid receptors. However, it is now clear that DHEA and DHEA-S act directly as ligands for many hepatic nuclear receptors and G-protein-coupled receptors. In addition, it can function to mediate acute cell signaling pathways. This review summarizes the molecular mechanisms by which DHEA acts in cells and animal models with a focus on the 'novel' and physiological modes of DHEA action.
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Affiliation(s)
- Russell A Prough
- Department of Biochemistry and Molecular GeneticsCenter for Genetics and Molecular Medicine, University of Louisville School of Medicine, Louisville, KY, USA
| | - Barbara J Clark
- Department of Biochemistry and Molecular GeneticsCenter for Genetics and Molecular Medicine, University of Louisville School of Medicine, Louisville, KY, USA
| | - Carolyn M Klinge
- Department of Biochemistry and Molecular GeneticsCenter for Genetics and Molecular Medicine, University of Louisville School of Medicine, Louisville, KY, USA
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Koyama AK, Tworoger SS, Eliassen AH, Okereke OI, Weisskopf MG, Rosner B, Yaffe K, Grodstein F. Endogenous sex hormones and cognitive function in older women. Alzheimers Dement 2016; 12:758-65. [PMID: 26806389 DOI: 10.1016/j.jalz.2015.12.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Revised: 10/29/2015] [Accepted: 12/08/2015] [Indexed: 01/17/2023]
Abstract
INTRODUCTION We examined the association between endogenous sex hormones and both objective and subjective measures of cognitive function. METHODS We followed 3044 women up to 23 years in a prospective cohort study. We measured plasma levels of estrone, estrone sulfate, estradiol, androstenedione, testosterone, dehydroepiandrosterone (DHEA), and dehydroepiandrosterone sulfate (DHEA-S) in 1989-1990, conducted neuropsychologic testing in 1999-2008, and inquired about subjective cognition in 2012. RESULTS Overall, we observed little relation between plasma levels of hormones and either neuropsychologic test performance or subjective cognition. However, after adjustment for age and education, we observed a borderline significant association of higher levels of plasma estrone with higher scores for both overall cognition (P trend = .10) and verbal memory (P trend = .08). DISCUSSION There were no clear associations of endogenous hormone levels at midlife and cognition in later life, although a suggested finding of higher levels of plasma estrone associated with better cognitive function merits further research.
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Affiliation(s)
- Alain K Koyama
- Channing Division of Network Medicine, Department of Medicine, Brigham & Women's Hospital and Harvard Medical School, Boston, MA, USA; Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA, USA.
| | - Shelley S Tworoger
- Channing Division of Network Medicine, Department of Medicine, Brigham & Women's Hospital and Harvard Medical School, Boston, MA, USA; Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - A Heather Eliassen
- Channing Division of Network Medicine, Department of Medicine, Brigham & Women's Hospital and Harvard Medical School, Boston, MA, USA; Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Olivia I Okereke
- Channing Division of Network Medicine, Department of Medicine, Brigham & Women's Hospital and Harvard Medical School, Boston, MA, USA; Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Marc G Weisskopf
- Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA, USA; Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Bernard Rosner
- Channing Division of Network Medicine, Department of Medicine, Brigham & Women's Hospital and Harvard Medical School, Boston, MA, USA; Department of Biostatistics, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Kristine Yaffe
- Departments of Psychiatry, Neurology, and Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA, USA; San Francisco VA Medical Center, San Francisco, CA, USA
| | - Francine Grodstein
- Channing Division of Network Medicine, Department of Medicine, Brigham & Women's Hospital and Harvard Medical School, Boston, MA, USA; Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA, USA
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VAŇKOVÁ M, HILL M, VELÍKOVÁ M, VČELÁK J, VACÍNOVÁ G, LUKÁŠOVÁ P, VEJRAŽKOVÁ D, DVOŘÁKOVÁ K, RUSINA R, HOLMEROVÁ I, JAROLÍMOVÁ E, VAŇKOVÁ H, BENDLOVÁ B. Reduced Sulfotransferase SULT2A1 Activity in Patients With Alzheimer´s Disease. Physiol Res 2015; 64:S265-73. [DOI: 10.33549/physiolres.933160] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Steroids are important components in the pathophysiology of Alzheimer’s disease (AD). Although their role has been studied, the corresponding metabolomic data is limited. In the present study we evaluate the role of steroid sulfotransferase SULT2A1 in the pathophysiology of AD on the basis of circulating steroids (measured by GC-MS), in which the sulfation catalyzed by SULT2A1 dominates over glucuronidation (pregnenolone/sulfate, DHEA/sulfate, androstenediol/sulfate and 5α-reduced pregnane and androstane catabolites). To estimate a general trend of SUL2A1 activity in AD patients we compared the ratios of steroid conjugates to their unconjugated counterparts (C/U) in controls (11 men and 22 women) and AD patients (18 men and 16 women) for individual circulating steroids after adjustment for age and BMI using ANCOVA model including the factors AD status and gender. Decreased C/U ratio for the C19 steroids demonstrate an association between attenuated sulfation of C19 steroids in adrenal zona reticularis and the pathophysiology of AD.
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Affiliation(s)
- M. VAŇKOVÁ
- Institute of Endocrinology, Prague, Czech Republic
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Keane KN, Hinchliffe PM, Namdar N, Conceicao JL, Newsholme P, Yovich JL. Novel dehydroepiandrosterone troche supplementation improves the serum androgen profile of women undergoing in vitro fertilization. DRUG DESIGN DEVELOPMENT AND THERAPY 2015; 9:5569-78. [PMID: 26487801 PMCID: PMC4607057 DOI: 10.2147/dddt.s92467] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Dehydroepiandrosterone (DHEA) is the most abundant steroid hormone in the circulation and has potent multifunctional activity. Epidemiological evidence suggests that levels of serum DHEA decrease with advancing age, and this has been associated with onset or progression of various age-related ailments, including cognitive decline and dementia, cardiovascular disease, and obesity. Consequently, these findings have sparked intense research interest in DHEA supplementation as an "antiaging" therapy. Currently, DHEA is being used by 25% of in vitro fertilization (IVF) clinicians as an adjuvant in assisted reproductive programs, yet the therapeutic benefit of DHEA is unclear. Here, we examined the use of novel DHEA-containing oral troches in patients undertaking IVF and investigated the impact of these troches on their serum androgen profile. This retrospective study determined the androgen profile of 31 IVF patients before (baseline) and after DHEA supplementation (with DHEA). Baseline serum measurements of testosterone (total and free), DHEA sulfate (DHEAS), sex hormone-binding globulin (SHBG), and androstenedione were made before and after supplementation. Each patient received DHEA troches containing 25 mg of micronized DHEA, and troches were administered sublingually twice daily for a period of no greater than 4 months. Adjuvant treatment with DHEA boosted the serum concentration of a number of androgen-related analytes, including total and free testosterone, androstenedione, and DHEAS, while serum SHBG remained unchanged. Supplementation also significantly increased the free-androgen index in IVF patients. Interestingly, the increase in serum analyte concentration following DHEA supplementation was found to be dependent on body mass index (BMI), but not individual age. Patients with the lowest BMI (<20.0 kg/m(2)) tended to have lower testosterone and DHEAS, but higher SHBG and androstenedione levels in comparison with other BMI groups postsupplementation. However, patients in the highest BMI group (>30.0 kg/m(2)) tended to have lower androgen responses following DHEA supplementation, but these were not statistically different from the corresponding baseline level. This method of DHEA administration results in a similar enhancement of testosterone, DHEAS, and androstenedione levels in comparison with other methods of administration. Furthermore, we showed that BMI significantly influences DHEA uptake and metabolism, and that BMI should be carefully considered during dosage calculation to ensure a significant and robust androgen-profile boost.
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Affiliation(s)
- Kevin N Keane
- School of Biomedical Sciences, Curtin Health Innovation Research Institute - Biosciences, Curtin University, Perth, Australia ; PIVET Medical Centre, Perth, Australia
| | | | | | | | - Philip Newsholme
- School of Biomedical Sciences, Curtin Health Innovation Research Institute - Biosciences, Curtin University, Perth, Australia
| | - John L Yovich
- School of Biomedical Sciences, Curtin Health Innovation Research Institute - Biosciences, Curtin University, Perth, Australia ; PIVET Medical Centre, Perth, Australia
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