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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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2
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Luna SL, Brown DI, Kohama SG, Urbanski HF. Lack of effect of short-term DHEA supplementation on the perimenopausal ovary†. Biol Reprod 2020; 103:1209-1216. [PMID: 32901819 DOI: 10.1093/biolre/ioaa160] [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: 06/16/2020] [Revised: 08/13/2020] [Indexed: 11/12/2022] Open
Abstract
Dehydroepiandrosterone (DHEA) hormonal supplementation can improve oocyte quality in women with diminished ovarian function. However, it is unclear whether DHEA supplementation can also enhance ovarian function during the perimenopause (i.e., when the number of follicles in the ovary has undergone a marked reduction). To address this question, we examined the impact of 2.5-months of daily 5-mg oral DHEA supplementation on the number of ovarian follicles and the concentration of anti-Müllerian hormone (AMH) in perimenopausal rhesus macaques. Like women, these long-lived nonhuman primates have ~ 28-day menstrual cycles and eventually undergo menopause. They also show similar age-related neuroendocrine changes, including a marked decrease in circulating concentrations of DHEA and DHEA sulfate (DHEAS). Our experimental design involved the following three groups of animals (N = 6 per group): Young adult (mean age = 11.6 years), Old control (mean age = 23.1 years), and Old DHEA-treated (mean age = 23.5 years). Histological examination of the ovaries revealed a significant age-related decrease in the mean number of primordial follicles despite DHEA supplementation. Moreover, AMH concentrations within the ovaries and circulation, assessed by Western analysis and ELISA, respectively, showed significant age-related decreases that were not attenuated by DHEA supplementation. Taken together, these results fail to show a clear effect of short-term physiological DHEA supplementation on the perimenopausal ovary. However, they do not exclude the possibility that alternative DHEA supplementation paradigms (e.g., involving an earlier start date, longer duration and using pharmacological doses) may extend reproductive potential during aging.
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Affiliation(s)
- Selva L Luna
- Division of Neuroscience, Oregon National Primate Research Center, Beaverton, Oregon 97006, USA.,Escuela de Química y Farmacia, Facultad de Farmacia, Universidad de Valparaíso, Valparaíso, Chile
| | - Donald I Brown
- Division of Neuroscience, Oregon National Primate Research Center, Beaverton, Oregon 97006, USA.,Instituto de Biología, Facultad de Ciencias, Universidad de Valparaíso, Valparaíso, Chile
| | - Steven G Kohama
- Division of Neuroscience, Oregon National Primate Research Center, Beaverton, Oregon 97006, USA
| | - Henryk F Urbanski
- Division of Neuroscience, Oregon National Primate Research Center, Beaverton, Oregon 97006, USA.,Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, Oregon 97239, USA
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3
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Melhem AJ, Araújo AC, Figueiredo FNS, Figueiredo DLA. Acute Myocardial Infarction in a Young Bodybuilder: A Case Report and Review of the Literature. AMERICAN JOURNAL OF CASE REPORTS 2020; 21:e924796. [PMID: 32848124 PMCID: PMC7476749 DOI: 10.12659/ajcr.924796] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Patient: Male, 26-year-old Final Diagnosis: Myocardial infarction Symptoms: Chest pain Medication: — Clinical Procedure: — Specialty: Cardiology • Endocrinology and Metabolic
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Affiliation(s)
- Abrão José Melhem
- Department of Medicine, Midwest State University of Paraná-UNICENTRO, Guarapuava, PR, Brazil
| | - Amélia Cristina Araújo
- Department of Medicine, Midwest State University of Paraná-UNICENTRO, Guarapuava, PR, Brazil.,Department of Cardiology, São Vicente Hospital, Guarapuava, PR, Brazil
| | - Felipe Nathan S Figueiredo
- Department of Medicine, Midwest State University of Paraná-UNICENTRO, Guarapuava, PR, Brazil.,Department of Medicine, Pontifical Catholic University of Paraná, Curitiba, PR, Brazil
| | - David Livingstone A Figueiredo
- Department of Medicine, Midwest State University of Paraná-UNICENTRO, Guarapuava, PR, Brazil.,Institute for Cancer Research, IPEC, Guarapuava, PR, Brazil
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4
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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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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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Aghazadeh-Sanai N, Downs JL, Mattison JA, Ingram DK, Kohama SG, Urbanski HF. Effect of caloric restriction on plasma melatonin levels in aged rhesus macaques. Neurobiol Aging 2017; 55:213-216. [PMID: 28461102 PMCID: PMC5460625 DOI: 10.1016/j.neurobiolaging.2017.03.032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Revised: 03/28/2017] [Accepted: 03/31/2017] [Indexed: 11/18/2022]
Abstract
In this study, we examined the 24-hour plasma melatonin patterns of young adult (∼11 years of age) and old (∼24 years of age) rhesus macaques, and determined how they would be influenced by 30% caloric restriction (CR). Well-defined 24-hour plasma melatonin rhythms were observed in all the males but only the old animals showed significant attenuation of night-time melatonin levels. Moreover, 4.5 years of CR failed to prevent the age-associated decline in plasma melatonin levels in the old males and caused a significant decrease in the young adult males. Similar plasma melatonin rhythms were also observed in all the females but no age-related decline was detected, and 2 years of CR had no obvious effect on plasma melatonin levels. If anything, there was a trend for the CR to decrease melatonin levels in the young adult females. Taken together, the results fail to show any clear benefit of CR on plasma melatonin levels in old rhesus macaques and may even be detrimental to plasma melatonin levels in young adults.
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Affiliation(s)
- Nona Aghazadeh-Sanai
- Division of Neuroscience, Oregon National Primate Research Center, Beaverton, OR, USA
| | - Jodi L Downs
- Division of Neuroscience, Oregon National Primate Research Center, Beaverton, OR, USA; Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, USA
| | - Julie A Mattison
- Translational Gerontology Branch, Intramural Research Program, National Institute on Aging, Baltimore, MD, USA
| | - Donald K Ingram
- Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge, LA, USA
| | - Steven G Kohama
- Division of Neuroscience, Oregon National Primate Research Center, Beaverton, OR, USA
| | - Henryk F Urbanski
- Division of Neuroscience, Oregon National Primate Research Center, Beaverton, OR, USA; Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, USA.
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7
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Urbanski HF, Sorwell KG, Prokai L, Kohama SG. Effect of short-term DHEA supplementation on serum and hippocampal estrogen concentrations in perimenopausal female rhesus macaques. Neurobiol Aging 2017; 55:172-174. [PMID: 28431754 PMCID: PMC5443113 DOI: 10.1016/j.neurobiolaging.2017.03.026] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Revised: 03/21/2017] [Accepted: 03/23/2017] [Indexed: 11/30/2022]
Abstract
The hippocampus of rhesus macaques expresses genes that encode key enzymes involved in the intracrine conversion of dehydroepiandrosterone (DHEA) to estradiol. Therefore, it is plausible that supplementary DHEA may enhance hippocampal estradiol concentrations and help to compensate for the marked postmenopausal attenuation of circulating estrogen levels. To test this hypothesis, we used LC-MS/MS to measure estradiol and estrone concentrations in the serum and hippocampus of young and old perimenopausal female rhesus macaques, as well as old perimenopausal females that received daily DHEA (5 mg) oral supplementation for 1 week. Despite lower concentrations of these estrogens in the serum of the older animals, their concentrations in the hippocampus did not show any obvious differences due to age or to DHEA supplementation. The results suggest that de novo estrogen synthesis in the brain may compensate for the perimenopausal loss of estrogens in the circulation even without supplemental DHEA.
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Affiliation(s)
- Henryk F Urbanski
- Division of Neuroscience, Oregon National Primate Research Center, Beaverton, OR, USA; Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, USA; Department of Physiology & Pharmacology, Oregon Health & Science University, Portland, OR, USA; Division of Reproductive & Developmental Sciences, Oregon National Primate Research Center, Beaverton, OR, USA.
| | - Krystina G Sorwell
- Division of Neuroscience, Oregon National Primate Research Center, Beaverton, OR, USA; Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, USA
| | - Laszlo Prokai
- Center for Neuroscience Discovery, Institute for Healthy Aging, University of North Texas Health Science Center, Fort Worth, TX, USA
| | - Steven G Kohama
- Division of Neuroscience, Oregon National Primate Research Center, Beaverton, OR, USA
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8
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Pejčić T, Tosti T, Tešić Ž, Milković B, Dragičević D, Kozomara M, Čekerevac M, Džamić Z. Testosterone and dihydrotestosterone levels in the transition zone correlate with prostate volume. Prostate 2017; 77:1082-1092. [PMID: 28594074 DOI: 10.1002/pros.23365] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2016] [Accepted: 04/21/2017] [Indexed: 11/06/2022]
Abstract
BACKGROUND There is still no consensus regarding intraprostatic androgen levels and the accumulation of androgens in the hyperplastic prostatic tissue. The current opinion is that intraprostatic dihydrotestosterone (DHT) concentrations are maintained but not elevated in benign prostatic hyperplasia (BPH), while there is no similar data concerning intraprostatic testosterone (T). METHODS Tissue T (tT) and tissue DHT (tDHT) concentration were determined in 93 patients scheduled for initial prostate biopsy. The criteria for biopsy were abnormal DRE and/or PSA > 4 ng/mL. Total prostate volume (TPV) was determined by transrectal ultrasound (TRUS). During TRUS- guided prostate biopsy, 10-12 samples were collected from the peripheral zone (PZ) and two additional samples were collected from the transition zone (TZ). The samples from the TZ were immediately frozen in liquid nitrogen at -70°C, and transported for tissue androgen determination, using liquid chromatography mass spectrometry (LC-MS). RESULTS Pathological analysis revealed that prostate cancer (PCa) was present in 45 and absent in 48 patients. In the whole group, there were 42 men with small prostate (TPV < 30 mL) and 51 with enlarged prostate (TPV ≥ 31 mL). The overall average tT level was 0.79 ± 0.66 ng/g, while the average tDHT level was 10.27 ± 7.15 ng/g. There were no differences in tT and tDHT level in prostates with and without PCa. However, tT and tDHT levels were significantly higher in larger, than in smaller prostates (tT: 1.05 ± 0.75 and 0.46 ± 0.29 ng/g, and tDHT: 15.0 ± 6.09 and 4.51 ± 2.75 ng/g, respectively). There were strong correlations between tT and TPV (r = 0.71), and tDHT and TPV (r = 0.74). CONCLUSIONS The present study confirmed that both T and DHT accumulated in the stroma of enlarged prostates; the degree of accumulation correlated with prostate volume.
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Affiliation(s)
- Tomislav Pejčić
- Clinic of Urology, Clinical Center of Serbia, Belgrade, Serbia
| | - Tomislav Tosti
- Faculty of Chemistry, University of Belgrade, Belgrade, Serbia
| | - Živoslav Tešić
- Faculty of Chemistry, University of Belgrade, Belgrade, Serbia
| | | | | | | | - Milica Čekerevac
- Institute of Pathology, Clinical Center of Serbia, Belgrade, Serbia
| | - Zoran Džamić
- Clinic of Urology, Clinical Center of Serbia, Belgrade, Serbia
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9
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Backlund PS, Urbanski HF, Doll MA, Hein DW, Bozinoski M, Mason CE, Coon SL, Klein DC. Daily Rhythm in Plasma N-acetyltryptamine. J Biol Rhythms 2017; 32:195-211. [PMID: 28466676 PMCID: PMC5571864 DOI: 10.1177/0748730417700458] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Normal physiology undergoes 24-h changes in function that include daily rhythms in circulating hormones, most notably melatonin and cortical steroids. This study focused on N-acetyltryptamine, a little-studied melatonin receptor mixed agonist-antagonist and the likely evolutionary precursor of melatonin. The central issue addressed was whether N-acetyltryptamine is physiologically present in the circulation. N-acetyltryptamine was detected by LC-MS/MS in daytime plasma of 3 different mammals in subnanomolar levels (mean ± SEM: rat, 0.29 ± 0.05 nM, n = 5; rhesus macaque, 0.54 ± 0.24 nM, n = 4; human, 0.03 ± 0.01 nM, n = 32). Analysis of 24-h blood collections from rhesus macaques revealed a nocturnal increase in plasma N-acetyltryptamine (p < 0.001), which varied from 2- to 15-fold over daytime levels among the 4 animals studied. Related RNA sequencing studies indicated that the transcript encoding the tryptamine acetylating enzyme arylalkylamine N-acetyltransferase (AANAT) is expressed at similar levels in the rhesus pineal gland and retina, thereby indicating that either tissue could contribute to circulating N-acetyltryptamine. The evidence that N-acetyltryptamine is a physiological component of mammalian blood and exhibits a daily rhythm, together with known effects as a melatonin receptor mixed agonist-antagonist, shifts the status of N-acetyltryptamine from pharmacological tool to candidate for a physiological role. This provides a new opportunity to extend our understanding of 24-h biology.
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Affiliation(s)
- Peter S. Backlund
- Biomedical Mass Spectrometry Facility, Intramural Research Program,
Eunice Kennedy Shriver National Institute of Child Health and
Human Development, National Institutes of Health, Bethesda, MD 20892-1580
| | - Henryk F. Urbanski
- Division of Neuroscience, Oregon National Primate Research Center,
Beaverton, OR 97006
- Division of Reproductive and Developmental Sciences, Oregon National
Primate Research Center, Beaverton, OR 97006
- Department of Behavioral Neuroscience, Oregon Health and Science
University, Portland, OR 97006
- Department of Physiology and Pharmacology, Oregon Health and Science
University, Portland, OR 97239
| | - Mark A. Doll
- Department of Pharmacology and Toxicology, and James Graham Brown
Cancer Center, University of Louisville, Louisville, KY 40202
| | - David W. Hein
- Department of Pharmacology and Toxicology, and James Graham Brown
Cancer Center, University of Louisville, Louisville, KY 40202
| | - Marjan Bozinoski
- Department of Physiology and Biophysics, Weill Cornell Medical
College, Cornell University, New York, NY 10065
| | - Christopher E. Mason
- Department of Physiology and Biophysics, Weill Cornell Medical
College, Cornell University, New York, NY 10065
- The HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for
Computational Biomedicine, Weill Cornell Medicine, New York, NY, USA
- The Feil Family Brain and Mind Research Institute, Weill Cornell
Medicine, New York, NY, USA
| | - Steven L. Coon
- Section on Neuroendocrinology, Program in Developmental
Endocrinology and Genetics, Eunice Kennedy Shriver National
Institute of Child Health and Human Development, National Institutes of Health,
Bethesda, MD 20892-1830
- Molecular Genomics Core Facility, Office of the Scientific
Director, Eunice Kennedy Shriver National Institute of Child Health
and Human Development, National Institutes of Health, Bethesda, MD 20892-1830
| | - David C. Klein
- Section on Neuroendocrinology, Program in Developmental
Endocrinology and Genetics, Eunice Kennedy Shriver National
Institute of Child Health and Human Development, National Institutes of Health,
Bethesda, MD 20892-1830
- Office of the Scientific Director, Intramural Research Program,
Eunice Kennedy Shriver National Institute of Child Health and
Human Development, National Institutes of Health, Bethesda, MD 20892-1830
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10
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Sorwell KG, Renner L, Weiss AR, Neuringer M, Kohama SG, Urbanski HF. Cognition in aged rhesus monkeys: effect of DHEA and correlation with steroidogenic gene expression. GENES BRAIN AND BEHAVIOR 2016; 16:361-368. [PMID: 27736018 DOI: 10.1111/gbb.12351] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Revised: 08/15/2016] [Accepted: 10/09/2016] [Indexed: 11/29/2022]
Abstract
Estradiol supplementation has been shown to enhance cognitive performance in old ovariectomized rhesus macaques (Macaca mulatta). To determine if similar benefits could be achieved in perimenopausal animals using alternative hormonal supplements, we administered dehydroepiandrosterone (DHEA) to old ovary-intact female rhesus macaques for ∼2.5 months. Using computerized touch screen memory tasks, including delayed response (DR) and delayed matching-to-sample (DMS), we observed improved performance with time in all of the animals but failed to detect a significant effect of DHEA. On the other hand, gene expression profiling disclosed a significant correlation between cognitive performance and the expression of several steroidogenic and steroid-responsive genes. The DR performance was positively correlated with hippocampal expression of AKR1C3 and STAR and negatively correlated with the expression of SDRD5A1. A positive correlation was also found between DMS performance and prefrontal cortical expression of AKR1C3 and a negative correlation with STAR, as well as a negative correlation with the hippocampal expression of HSD11B1 and NR3C1. Taken together, the results suggest that steroidogenic gene regulation within the brain may help to maintain cognitive function during the perimenopausal transition period, despite a decline in sex-steroid levels in the circulation.
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Affiliation(s)
- K G Sorwell
- Division of Neuroscience, Oregon National Primate Research Center, Beaverton.,Department of Behavioral Neuroscience, Oregon Health & Science University, Portland
| | - L Renner
- Division of Neuroscience, Oregon National Primate Research Center, Beaverton
| | - A R Weiss
- Division of Neuroscience, Oregon National Primate Research Center, Beaverton.,Present address: Department of Psychology, Emory University, Atlanta, GA, USA
| | - M Neuringer
- Division of Neuroscience, Oregon National Primate Research Center, Beaverton
| | - S G Kohama
- Division of Neuroscience, Oregon National Primate Research Center, Beaverton
| | - H F Urbanski
- Division of Neuroscience, Oregon National Primate Research Center, Beaverton.,Department of Behavioral Neuroscience, Oregon Health & Science University, Portland.,Department of Physiology & Pharmacology, Oregon Health & Science University, Portland.,Division of Reproductive & Developmental Sciences, Oregon National Primate Research Center, Beaverton, OR, USA
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11
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Pleil KE, Helms CM, Sobus JR, Daunais JB, Grant KA, Kash TL. Effects of chronic alcohol consumption on neuronal function in the non-human primate BNST. Addict Biol 2016. [PMID: 26223349 DOI: 10.1111/adb.12289] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Alterations in hypothalamic-pituitary-adrenal axis function contribute to many of the adverse behavioral effects of chronic voluntary alcohol drinking, including alcohol dependence and mood disorders; limbic brain structures such as the bed nucleus of the stria terminalis (BNST) may be key sites for these effects. Here, we measured circulating levels of several steroid hormones and performed whole-cell electrophysiological recordings from acutely prepared BNST slices of male rhesus monkeys allowed to self-administer alcohol for 12 months or a control solution. Initial comparisons revealed that BNST neurons in alcohol-drinking monkeys had decreased membrane resistance, increased frequency of spontaneous inhibitory postsynaptic currents (sIPSCs) with no change in spontaneous excitatory postsynaptic currents (sEPSCs). We then used a combined variable cluster analysis and linear mixed model statistical approach to determine whether specific factors including stress and sex hormones, age and measures of alcohol consumption and intoxication are related to these BNST measures. Modeling results showed that specific measures of alcohol consumption and stress-related hormone levels predicted differences in membrane conductance in BNST neurons. Distinct groups of adrenal stress hormones were negatively associated with the frequency of sIPSCs and sEPSCs, and alcohol drinking measures and basal neuronal membrane properties were additional positive predictors of inhibitory, but not excitatory, PSCs. The amplitude of sEPSCs was highly positively correlated with age, independent of other variables. Together, these results suggest that chronic voluntary alcohol consumption strongly influences limbic function in non-human primates, potentially via interactions with or modulation by other physiological variables, including stress steroid hormones and age.
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Affiliation(s)
- Kristen E. Pleil
- Bowles Center for Alcohol Studies & Department of Pharmacology, School of Medicine; University of North Carolina at Chapel Hill; Chapel Hill NC USA
| | - Christa M. Helms
- Division of Neuroscience, Oregon National Primate Research Center; Oregon Health & Science University; Beaverton OR USA
| | - Jon R. Sobus
- Human Exposure and Atmospheric Sciences Division, National Exposure Research Laboratory, Office of Research and Development; U.S. Environmental Protection Agency; Research Triangle Park NC USA
| | - James B. Daunais
- Department of Physiology & Pharmacology; Wake Forest School of Medicine; Winston-Salem NC USA
| | - Kathleen A. Grant
- Division of Neuroscience, Oregon National Primate Research Center; Oregon Health & Science University; Beaverton OR USA
| | - Thomas L. Kash
- Bowles Center for Alcohol Studies & Department of Pharmacology, School of Medicine; University of North Carolina at Chapel Hill; Chapel Hill NC USA
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Didier ES, MacLean AG, Mohan M, Didier PJ, Lackner AA, Kuroda MJ. Contributions of Nonhuman Primates to Research on Aging. Vet Pathol 2016; 53:277-90. [PMID: 26869153 PMCID: PMC5027759 DOI: 10.1177/0300985815622974] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Aging is the biological process of declining physiologic function associated with increasing mortality rate during advancing age. Humans and higher nonhuman primates exhibit unusually longer average life spans as compared with mammals of similar body mass. Furthermore, the population of humans worldwide is growing older as a result of improvements in public health, social services, and health care systems. Comparative studies among a wide range of organisms that include nonhuman primates contribute greatly to our understanding about the basic mechanisms of aging. Based on their genetic and physiologic relatedness to humans, nonhuman primates are especially important for better understanding processes of aging unique to primates, as well as for testing intervention strategies to improve healthy aging and to treat diseases and disabilities in older people. Rhesus and cynomolgus macaques are the predominant monkeys used in studies on aging, but research with lower nonhuman primate species is increasing. One of the priority topics of research about aging in nonhuman primates involves neurologic changes associated with cognitive decline and neurodegenerative diseases. Additional areas of research include osteoporosis, reproductive decline, caloric restriction, and their mimetics, as well as immune senescence and chronic inflammation that affect vaccine efficacy and resistance to infections and cancer. The purpose of this review is to highlight the findings from nonhuman primate research that contribute to our understanding about aging and health span in humans.
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Affiliation(s)
- E S Didier
- Division of Microbiology, Tulane National Primate Research Center, Covington, LA, USA
| | - A G MacLean
- Division of Comparative Pathology, Tulane National Primate Research Center, Covington, LA, USA
| | - M Mohan
- Division of Comparative Pathology, Tulane National Primate Research Center, Covington, LA, USA
| | - P J Didier
- Division of Comparative Pathology, Tulane National Primate Research Center, Covington, LA, USA
| | - A A Lackner
- Division of Comparative Pathology, Tulane National Primate Research Center, Covington, LA, USA
| | - M J Kuroda
- Division of Immunology, Tulane National Primate Research Center, Covington, LA, USA
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Pletzer B. Editorial: From sex differences in neuroscience to a neuroscience of sex differences: new directions and perspectives. Front Neurosci 2015; 9:330. [PMID: 26441504 PMCID: PMC4585126 DOI: 10.3389/fnins.2015.00330] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Accepted: 09/03/2015] [Indexed: 01/16/2023] Open
Affiliation(s)
- Belinda Pletzer
- Department of Psychology, Paris-Lodron-University SalzburgSalzburg, Austria
- Centre for Cognitive Neuroscience, Paris-Lodron-University SalzburgSalzburg, Austria
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Eghlidi DH, Urbanski HF. Effects of Age and Estradiol on Gene Expression in the Rhesus Macaque Hypothalamus. Neuroendocrinology 2015; 101:236-45. [PMID: 25765287 PMCID: PMC4475460 DOI: 10.1159/000381063] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Accepted: 02/18/2015] [Indexed: 11/19/2022]
Abstract
BACKGROUND The hypothalamus plays a key role in mediating the effects of estrogen on many physiological functions, including reproduction, metabolism, and thermoregulation. We have previously observed marked estrogen-dependent gene expression changes within the hypothalamus of rhesus macaques during aging, especially in the KNDy neurons of the arcuate-median eminence (ARC-ME) that produce kisspeptin, neurokinin B, and dynorphin A. Little is known, however, about the mechanisms involved in mediating the feedback from estrogen onto these neurons. METHODS We used quantitative real-time PCR to profile age- and estrogen-dependent gene expression changes in the rhesus macaque hypothalamus. Our focus was on genes that encode steroid receptors (ESR1, ESR2, PGR, and AR) and on enzymes that contribute to the local synthesis of 17β-estradiol (E2; STS, HSD3B1/2, HSD17B5, and CYP19A). In addition, we used RT(2) Profiler™ PCR Arrays to profile a larger set of genes that are integral to hypothalamic function. RESULTS KISS1, KISS1R, TAC3, and NPY2R mRNA levels increased in surgically menopausal (ovariectomized) old females relative to age-matched ovariectomized animals that received E2 hormone therapy. In contrast, PGR, HSD17B, GNRH2, SLC6A3, KISS1, TAC3, and NPY2R mRNA levels increased after E2 supplementation. CONCLUSION The rhesus macaque ARC-ME expresses many genes that are responsive to changes in circulating estrogen levels, even during old age, and these may contribute to causing the normal and pathophysiological changes that occur during menopause.
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Affiliation(s)
- Dominique H. Eghlidi
- Division of Neuroscience, Oregon National Primate Research Center, Beaverton, Oreg., USA
- Department of Behavioral Neuroscience, Oregon Health and Science University, Portland, Oreg., USA
| | - Henryk F. Urbanski
- Division of Neuroscience, Oregon National Primate Research Center, Beaverton, Oreg., USA
- Department of Behavioral Neuroscience, Oregon Health and Science University, Portland, Oreg., USA
- Deptartment of Physiology and Pharmacology, Oregon Health and Science University, Portland, Oreg., USA
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