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https://www.readbyqxmd.com/read/28528397/perioperative-hypothalamic-pituitary-adrenal-function-in-patients-with-silent-corticotroph-adenomas
#1
Abdelle F Cheres, Nadine ElAsmar, Aman Rajpal, Warren R Selman, Baha M Arafah
BACKGROUND: Silent corticotroph adenomas (SCAs) are characterized by strong ACTH immunostaining without clinical manifestations of hypercortisolism. Patients with SCAs often present with mechanical symptoms related to tumor growth. This study investigates the hypothalamic pituitary adrenal axis (HPA) characteristics after adenomectomy in patients with SCAs. METHODS: Biochemical parameters of HPA function were monitored frequently after surgical resection of non-functioning macroadenomas...
May 20, 2017: Pituitary
https://www.readbyqxmd.com/read/28528334/hormones-and-human-and-nonhuman-primate-growth
#2
Robin Miriam Bernstein
The aim of this paper was to review information pertaining to the hormonal regulation of nonhuman primate growth, with specific focus on the growth hormone (GH)-insulin-like growth factor (IGF) axis and adrenal androgens. Hormones of the GH-IGF axis are consistently associated with measures of growth - linear, weight, or both - during the growth period; in adulthood, concentrations of IGF-I, IGF-binding protein-3, and GH-binding protein are not associated with any measures of size. Comparing patterns of dehydroepiandrosterone (DHEA) and DHEA sulfate (DHEAS) may be especially relevant for understanding whether the childhood stage of growth and development is unique to humans and perhaps other apes...
May 19, 2017: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/28525998/androsterone-glucuronide-to-dehydroepiandrosterone-sulphate-ratio-is-discriminatory-for-obese-caucasian-women-with-polycystic-ovary-syndrome
#3
Li-Wei Cho, Thozhukat Sathyapalan, Eric S Kilpatrick, Brian G Keevil, Adrian G Miller, Anne M Coady, Lina Ahmed, Stephen L Atkin
BACKGROUND: Androsterone glucuronide (ADTG) concentrations have been suggested as a marker of the effects of androgens at the target tissue level. As the mechanism for hyperandrogenemia in obese and nonobese polycystic ovary syndrome (PCOS) may differ, this study compared the different androgen parameters in non-obese compared to obese women with PCOS, and in normal subjects. METHODS: Eleven non-obese and 14 obese women with PCOS were recruited and compared to 11 control women without PCOS...
May 19, 2017: BMC Endocrine Disorders
https://www.readbyqxmd.com/read/28524342/the-effect-of-vitamin-d-supplementation-on-hormonal-and-glycaemic-profile-of-patients-with-pcos-a-meta-analysis-of-randomised-trials
#4
Vasilios Pergialiotis, Nikoleta Karampetsou, Periklis Panagopoulos, Eftihios Trakakis, Nikolaos Papantoniou
BACKGROUND: Vitamin D deficiency is frequently manifested in women with polycystic ovarian syndrome (PCOS). To date, supplementation of deficient patients has not been correlated with the hormonal and metabolic status of these patients. PURPOSE: We aimed to investigate the impact of vitamin D supplementation on the hormonal and metabolic profile of PCOS women. MATERIALS AND METHODS: We searched Medline, Scopus, ClinicalTrials.gov and Cochrane Central Register databases for published randomised controlled trials...
May 19, 2017: International Journal of Clinical Practice
https://www.readbyqxmd.com/read/28522293/direct-action-of-adiponectin-ameliorates-increased-androgen-synthesis-and-reduces-insulin-receptor-expression-in-the-polycystic-ovary
#5
Anusha Singh, Puran Bora, Amitabh Krishna
Polycystic ovary syndrome (PCOS) is a common endocrine and metabolic disorder of reproductive age females, leading to infertility. Despite extensive research, the exact pathophysiology and treatment are lacking. The aim of the current study was to evaluate the direct role of adiponectin either alone or together with luteinizing hormone (LH) on sex hormone synthesis and changes in insulin receptor (IR) in the ovary of dehydroepiandrosterone (DHEA)-treated PCOS-mice. Immunohistochemical study showed decreased expression of adiponectin receptor (AdipoR1) in PCOS-ovary which correlated with increased synthesis of androgen and decreased expression of IR...
May 15, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28521309/care-transitions-and-adult-day-services-moderate-the-longitudinal-links-between-stress-biomarkers-and-family-caregivers-functional-health
#6
Yin Liu, David M Almeida, Michael J Rovine, Steven H Zarit
BACKGROUND: Stress biomarkers have been linked to health and well-being. There are, however, few studies on how dysregulation in the hypothalamic-pituitary-adrenal axis and sympathetic nervous system actually affects functional health of family caregivers of persons with dementia. Further, it is not clear whether and how factors affecting caregiving stressor exposures such as care transitions and adult day services (ADS) use may affect such association. OBJECTIVE: First, to examine the association of daily stress biomarkers and functional health over time among family caregivers of persons with dementia...
May 19, 2017: Gerontology
https://www.readbyqxmd.com/read/28508601/effects-of-anorexia-nervosa-on-the-endocrine-system
#7
Charumathi Baskaran, Madhusmita Misra, Anne Klibanski
Anorexia nervosa (AN) is characterized by severe undernutrition associated with alterations in multiple endocrine axes, which are primarily adaptive to the state of caloric deprivation. Hormonal changes include growth hormone (GH) resistance with low insulin like growth factor-1 (IGF-1) levels, hypothalamic hypogonadism, relative hypercortisolemia and changes in appetite regulating hormones, including leptin, ghrelin, and peptide YY. These alterations contribute to abnormalities in bone metabolism leading to low bone mass, impaired bone microarchitecture, and increased risk for fracture, and may also negatively impact cognition, emotions and mood...
March 2017: Pediatric Endocrinology Reviews: PER
https://www.readbyqxmd.com/read/28501702/brown-adipose-tissue-activation-by-rutin-ameliorates-polycystic-ovary-syndrome-in-rat
#8
Tao Hu, Xiaoxue Yuan, Rongcai Ye, Huiqiao Zhou, Jun Lin, Chuanhai Zhang, Hanlin Zhang, Gang Wei, Meng Dong, Yuanyuan Huang, Wonchung Lim, Qingsong Liu, Hyuek Jong Lee, Wanzhu Jin
Polycystic ovary syndrome (PCOS) is a complex endocrinopathy that is characterized by anovulation, hyperandrogenism and polycystic ovary. However, there is a lack of effective treatment for PCOS at present because the pathologic cause of PCOS has not been elucidated. Although it has been known that brown adipose tissue transplantation ameliorates PCOS by activating endogenous BAT, BAT transplantation is not applicable in clinic. Therefore, BAT activation with natural compound could be an effective treatment strategy for PCOS patients...
April 22, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28495656/dehydroepiandrosterone-sulfate-augments-blood-brain-barrier-and-tight-junction-protein-expression-in-brain-endothelial-cells
#9
Dimitrios Papadopoulos, Georgios Scheiner-Bobis
Tight junctions (TJ) between brain endothelial cells are essential for formation and maintenance of the blood-brain barrier (BBB). Although loss of BBB integrity is associated with several neuropathological disorders, treatments that augment or stabilise the BBB are scarce. Here we show that physiological concentrations of dehydroepiandrosterone sulfate (DHEAS) stimulate the expression of the TJ proteins zonula occludens-1 (ZO-1) and claudin-3 in the brain-derived endothelial cell line bEnd.3 and promote TJ formation between neighbouring cells, demonstrated by augmented transendothelial resistance across cell monolayers...
May 8, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28489322/developmental-effects-of-androgens-in-the-human-brain
#10
REVIEW
Tuong-Vi Nguyen
Neuroendocrine theories of brain development posit that androgens play a crucial role in sex-specific cortical growth, but little is known about the differential effects of testosterone and dehydroepiandrosterone (DHEA) on cortico-limbic development and cognition during adolescence. In this context, the NIH Study of Normal Brain Development, a longitudinal study of typically developing children and adolescents 4 to 24 years of age (n=433), offered a unique opportunity to examine the developmental effects of androgens on cortico-limbic maturation and cognition...
May 10, 2017: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/28488728/fatty-acid-amide-hydrolase-faah-regulates-hypercapnia-ischemia-induced-increases-in-n-acylethanolamines-in-mouse-brain
#11
Lin Lin, Adam H Metherel, Peter J Jones, Richard P Bazinet
N-acylethanolamines (NAEs) are endogenous lipid ligands for several receptors including cannabinoid receptors and peroxisome proliferator-activated receptor-alpha (PPAR-α), which regulate numerous physiological functions. Fatty acid amide hydrolase (FAAH) is, largely, responsible for the degradation of NAEs. However, at high concentrations of ethanolamines and unesterified fatty acids, FAAH can also catalyze the reverse reaction, producing NAEs. Several brain insults such as ischemia and hypoxia increase brain unesterified fatty acids...
May 10, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28482249/association-among-serum-cortisol-dehydroepiandrosterone-sulfate-levels-and-psychiatric-symptoms-in-men-with-chronic-schizophrenia
#12
Rui Peng, Yan Li
PURPOSE: The purpose of this study was to examine possible associations of serum levels of cortisol and dehydroepiandrosterone-sulfate (DHEA-S) with psychiatric symptoms in men with chronic schizophrenia. METHODS: This retrospective study involved 162 men with schizophrenia and 138 age-matched healthy controls, for whom data were collected on demographic characteristics, age at disease onset, disease duration, positive and negative syndrome scale (PANSS) scores, and history of atypical antipsychotic treatment...
March 27, 2017: Comprehensive Psychiatry
https://www.readbyqxmd.com/read/28476876/prognostic-value-of-dehydroepiandrosterone-sulfate-for-patients-with-cardiovascular-disease-a-systematic-review-and-meta-analysis
#13
REVIEW
Ting-Ting Wu, Yuan Chen, Yun Zhou, Dilare Adi, Ying-Ying Zheng, Fen Liu, Yi-Tong Ma, Xiang Xie
BACKGROUND: The aim of the present study was to estimate the impact of dehydroepiandrosterone sulfate (DHEAS) on the prognosis of patients with cardiovascular disease by performing a systematic review and meta-analysis. METHODS AND RESULTS: The Embase, PubMed, Web of Science, CNKI, and WanFang databases were searched up to September 5, 2016, to identify eligible studies. The quality of each study was assessed using the Newcastle-Ottawa Scale. The association between DHEAS, either on admission or at discharge, and cardiovascular disease outcomes were reviewed...
May 5, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28476183/influence-of-endogenous-estradiol-progesterone-allopregnanolone-and-dehydroepiandrosterone-sulfate-on-brain-resting-state-functional-connectivity-across-the-menstrual-cycle
#14
Sabrina K Syan, Luciano Minuzzi, Dustin Costescu, Mara Smith, Olivia R Allega, Marg Coote, Geoffrey B C Hall, Benicio N Frey
OBJECTIVE: To [1] study brain resting state functional connectivity (Rs-FC) in a well-characterized sample of healthy women in the mid-follicular and late luteal phases of the menstrual cycle; and [2] examine the correlation between endogenous E2, P, allopregnanolone, and DHEAS and patterns of Rs-FC across the menstrual cycle. DESIGN: We studied the Rs-FC of the default mode network, salience network, meso-paralimbic network, fronto-parietal network, visual network, and sensorimotor network in the mid-follicular and late luteal phases...
May 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28472976/the-effect-of-dehydroepiandrosterone-supplementation-on-ovarian-response-is-associated-with-androgen-receptor-in-diminished-ovarian-reserve-women
#15
Qiaofei Hu, Liming Hong, Mingyue Nie, Qin Wang, Ying Fang, Yinmei Dai, Yanhong Zhai, Shuyu Wang, Chenghong Yin, Xiaokui Yang
BACKGROUND: Diminished ovarian reserve(DOR) is associated with female infertility and poor response to ovarian stimulation. Our objective was to assess the effect of dehydroepiandrosterone(DHEA) on DOR women and to explore whether the improvement of ovarian response after DHEA supplementation was dependent on the expression levels of androgen receptor(AR). METHODS: A prospective cohort study was performed in the Department of Human Reproductive Medicine, Beijing Obstetrics and Gynecology Hospital during August 2014 to August 2016...
May 4, 2017: Journal of Ovarian Research
https://www.readbyqxmd.com/read/28472898/the-relation-among-steroid-hormone-levels-lipid-profile-and-menopausal-symptom-severity
#16
Cihan Kaya, Hüseyin Cengiz, Ali Yeşil, Murat Ekin, Levent Yaşar
INTRODUCTION: Many postmenopausal women experience hot flashes, night sweats, non-specific emotional and psychological distresses. Our aim was to investigate the relation among steroid hormone levels, lipid profile and menopausal symptom severity using the menopause rating scale (MRS). METHODS: A cross-sectional study was performed at our outpatient clinic with natural postmenopausal women. A total of 444 women were included in this study. The basic characteristics of the study population, such as age, gravidity, parity, time to menopause onset and body mass index (BMI) were recorded...
May 4, 2017: Journal of Psychosomatic Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28468030/higher-dheas-levels-associated-with-long-term-practicing-of-tai-chi
#17
Hung-Min Lai, Mark Shui-Yu Liu, Ting-Ju Lin, Ying-Lan Tsai, Eileen Jea Chien
Tai Chi has many benefits for middle-aged/older individuals including improvements to muscle strength and various body lipid components. DHEAS and testosterone have anti-obesity/anti-aging characteristics and also improve libido, vitality and immunity levels. Thus, the aim of the present study was to investigate the differences between middle-aged Tai Chi practitioners (n = 17) and sedentary individuals (n = 17) in terms of leg strength, blood levels of cholesterol, triglyceride, HDL, as well as DHEAS, testosterone and cortisol...
April 30, 2017: Chinese Journal of Physiology
https://www.readbyqxmd.com/read/28462900/hyperdehydroepiandrosterone-in-neonates-with-hypoxic-ischemic-encephalopathy-and-circulatory-collapse
#18
Abdelmoneim Khashana, Engy Ahmed
BACKGROUND: Circulatory collapse is a very common complication of the critical illnesses in neonates including neonates with hypoxic ischemic encephalopathy; it can be the end result and cause of death of several conditions. Often, despite treatment with fluid resuscitation and vasopressor agents, circulatory collapse persist, and blood pressure can remain critically low, compromising adequate blood flow to vital organs and brain. Low blood pressure has been associated with increased mortality...
April 12, 2017: Pediatrics and Neonatology
https://www.readbyqxmd.com/read/28461162/bnn-20-a-synthetic-microneurotrophin-strongly-protects-dopaminergic-neurons-in-the-weaver-mouse-a-genetic-model-of-dopamine-denervation-acting-through-the-trkb-neurotrophin-receptor
#19
Konstantinos Botsakis, Theodora Mourtzi, Vasiliki Panagiotakopoulou, Malamati Vreka, Georgios T Stathopoulos, Iosif Pediaditakis, Ioannis Charalampopoulos, Achilleas Gravanis, Foteini Delis, Katerina Antoniou, Dimitrios Zisimopoulos, Christos D Georgiou, Nikolaos T Panagopoulos, Nikolaos Matsokis, Fevronia Angelatou
Neurotrophic factors are among the most promising treatments aiming at slowing or stopping and even reversing Parkinson's disease (PD). However, in most cases, they cannot readily cross the human blood-brain-barrier (BBB). Herein, we propose as a therapeutic for PD the small molecule 17-beta-spiro-[5-androsten-17,2'-oxiran]-3beta-ol (BNN-20), a synthetic analogue of DHEA, which crosses the BBB and is deprived of endocrine side-effects. Using the "weaver" mouse, a genetic model of PD, which exhibits progressive dopaminergic neurodegeneration in the Substantia Nigra (SN), we have shown that long-term administration (P1-P21) of BNN-20 almost fully protected the dopaminergic neurons and their terminals, via i) a strong anti-apoptotic effect, probably mediated through the Tropomyosin receptor kinase B (TrkB) neurotrophin receptor's PI3K-Akt-NF-κB signaling pathway, ii) by exerting an efficient antioxidant effect, iii) by inducing significant anti-inflammatory activity and iv) by restoring Brain-Derived Neurotrophic Factor (BDNF) levels...
April 28, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28456148/impact-of-emotional-disorders-on-semen-quality-in-men-treated-for-infertility
#20
Artur Wdowiak, Agnieszka Bień, Grażyna Iwanowicz-Palus, Marta Makara-Studzińska, Iwona Bojar
OBJECTIVE: Semen quality depends on factors such as lifestyle, environment, and hormone secretion. OBJECTIVE: The purpose of the study was to assess the correlation between emotional disorders and the secretion of selected hormones, and to assess the impact of these disorders on semen quality. METHODS: The study covered 60 fertile and 112 subfertile males. The sperm was obtained by masturbation, and examined directly after liquidation according to the 2010 criteria of the World Health Organization...
February 15, 2017: Neuro Endocrinology Letters
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