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https://www.readbyqxmd.com/read/29653114/adrenal-androgen-measurement-for-assessing-the-selectivity-of-adrenal-venous-sampling-in-primary-aldosteronism
#1
Hongyun Li, Xuebin Zhang, Shanmei Shen, Yan Zhang, Wenjing Zhang, Wenhuan Feng, Ping Li, Dalong Zhu
Adrenal venous sampling (AVS) is the reference standard for primary aldosteronism (PA) subtyping. Cortisol is widely used to assess the success of selective AVS, but it is not always reliable. The aim of the present study was to investigate the usefulness of adrenal androgens, compared to cortisol, in assessing the selectivity of AVS. We consecutively recruited 37 patients with PA undergoing AVS. AVS procedures were performed with the bilateral simultaneous technique without cosyntropin stimulation. We collected two baseline blood samples from 10 patients with a 15-min interval between time -15 (t-15) and time 0 (t0) to measure the variability in the levels of the tested hormones over time...
April 10, 2018: Steroids
https://www.readbyqxmd.com/read/29627396/characterization-of-circulating-steroid-hormone-profiles-in-the-bottlenose-dolphin-tursiops-truncatus-by-liquid-chromatography-tandem-mass-spectrometry-lc-ms-ms
#2
Thomas M Galligan, Lori H Schwacke, Dorian S Houser, Randall S Wells, Teri Rowles, Ashley S P Boggs
Systemic steroid hormone measurements are often used in the assessment of reproductive, developmental, and stress physiology in vertebrates. In protected wildlife, such as the common bottlenose dolphin (Tursiops truncatus), these measures can provide critical information about health and fitness to aid in effective conservation and management. Circulating steroid hormone concentrations are typically measured by immunoassays, which have imperfect specificity and are limited to the measurement of a single hormone per assay...
April 5, 2018: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/29624785/relationship-between-adrenal-steroid-hormones-in-cord-blood-and-birth-weight-the-sapporo-cohort-hokkaido-study-on-environment-and-children-s-health
#3
Takahiko Mitsui, Atsuko Araki, Houman Goudarzi, Chihiro Miyashita, Sachiko Ito, Seiko Sasaki, Takeya Kitta, Kimihiko Moriya, Kazutoshi Cho, Keita Morioka, Reiko Kishi, Nobuo Shinohara, Masayuki Takeda, Katsuya Nonomura
OBJECTIVES: We investigated the relationship between steroid hormone levels in cord blood and birth weight. METHODS: Among 514 participants in a prospective birth cohort study in Sapporo, the following hormone levels were measured in 294 stored cord blood samples from 135 males and 159 females: androstenedione, dehydroepiandrosterone (DHEA), cortisol, and cortisone. Birth weight information was obtained from medical records. RESULTS: Androstenedione/DHEA was significantly higher in males than in females, while DHEA was significantly higher in females...
April 6, 2018: American Journal of Human Biology: the Official Journal of the Human Biology Council
https://www.readbyqxmd.com/read/29602978/effect-of-diane-35-alone-or-in-combination-with-orlistat-or-metformin-in-chinese-polycystic-ovary-syndrome-patients
#4
Xiangyan Ruan, Jinghua Song, Muqing Gu, Lijuan Wang, Husheng Wang, Alfred O Mueck
OBJECTIVE: To evaluate the effect of Diane-35, alone or in combination with orlistat or metformin, on androgen and body fat percentage parameters in Chinese overweight and obese polycystic ovary syndrome (PCOS) patients with insulin resistance. METHODS: A total of 240 PCOS women were randomly allocated to receive Diane-35 alone (D group), Diane-35 plus orlistat (DO group), Diane-35 plus metformin (DM group), or Diane-35 plus orlistat plus metformin (DOM group). Serum TT, DHEA-S, androstenedione, SHBG, FT, FAI, body fat, and body fat percentage were assessed at baseline and after 12 weeks of treatment...
March 30, 2018: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/29602039/potent-and-selective-aldo-keto-reductase-1c3-akr1c3-inhibitors-based-on-the-benzoisoxazole-moiety-application-of-a-bioisosteric-scaffold-hopping-approach-to-flufenamic-acid
#5
Agnese Chiara Pippione, Irene Maria Carnovale, Davide Bonanni, Marcella Sini, Parveen Goyal, Elisabetta Marini, Klaus Pors, Salvatore Adinolfi, Daniele Zonari, Claudio Festuccia, Weixiao Yuan Wahlgren, Rosmarie Friemann, Renzo Bagnati, Donatella Boschi, Simonetta Oliaro-Bosso, Marco Lucio Lolli
The aldo-keto reductase 1C3 (AKR1C3) isoform plays a vital role in the biosynthesis of androgens and is considered an attractive target in prostate cancer (PCa). No AKR1C3-targeted agent has to date been approved for clinical use. Flufenamic acid and indomethacine are non-steroidal anti-inflammatory drugs known to inhibit AKR1C3 in a non-selective manner as COX off-target effects are also observed. Recently, we employed a scaffold hopping approach to design a new class of potent and selective AKR1C3 inhibitors based on a N-substituted hydroxylated triazole pharmacophore...
March 16, 2018: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29599864/urinary-steroid-profile-in-ironman-triathletes
#6
Marta Marcos-Serrano, Guillermo Olcina, Carmen Crespo, Darrell Brooks, Rafael Timon
The aim of this study was to determine variations in the urinary steroid profile of triathletes following an Ironman event. A total of 10 male participants (age = 36.0 ± 1.27 years; body height = 179.29 ± 10.77 cm; body mass = 74.50 ± 1.04 kg) completed an Ironman Championship. Urine samples were collected before, immediately after, and 24 hours following the race. Gas chromatography-mass spectrometry (GC/MS) was used to detect and quantify catabolic and anabolic hormones: Androsterone, Dehydroepiandrosteone (DHEA), Androstenedione and Testosterone (T), Betaestradiol, Estrone, Progesterone, Cortisol (C), Cortisone, Tetrahydrocortisol (THE) and Tetrahydrocortisone (THF)...
March 2018: Journal of Human Kinetics
https://www.readbyqxmd.com/read/29587208/modulation-of-transcription-of-genes-related-to-the-hypothalamic-pituitary-gonadal-and-the-hypothalamic-pituitary-adrenal-axes-in-zebrafish-danio-rerio-embryos-larvae-by-androstenedione
#7
Li-Ping Hou, Hu Shu, Le-le Lin, Si-Yuan Xu, Yan-Xia Wu, Xiu-Jun Rong, Jun-Jie Hu, Li-Ying Song, Yan-Qiu Liang, Hong-Xing Chen, Guang-Guo Ying, Chang-En Tian
This study aimed to determine the effects of Androstenodione (AED) on the transcriptional expression of genes involved in the hypothalamic-pituitary-gonadal (HPG) and the hypothalamic-pituitary-adrenal (HPA) axes in the zebrafish embryos/larvae. Zebrafish embryos were exposed to 0, 4.0, 45.0, 487.0, and 980.0 ng/L of AED from the day of fertilization to 144 h post fertilization (hpf), during which the transcriptional profiles of key genes related to the HPG and HPA axes were examined daily using quantitative real-time PCR...
March 24, 2018: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29580285/pioglitazone-is-effective-for-multiple-phenotyepes-of-the-zucker-fa-fa-rat-with-polycystc-ovary-morphology-and-insulin-resistance
#8
Miyuki Morishita, Toshiaki Endo, Tsuyoshi Baba, Yoshika Kuno, Keiko Ikeda, Tamotsu Kiya, Hiroyuki Honnma, Tsuyoshi Saito
BACKGROUND: Hyperandrogenism and insulin resistance may be related to the etiology of PCOS. Zucker fa/fa rats with polycystic ovary are obese, have insulin resistance without diabetes mellitus or hyperandrogenism and can be utilized as PCOS model rats without effects of hyperandrogenemia. PCOS patients are reported to have elevated levels of serum anti-Mullerian hormone (AMH), which has an inhibitory action on folliculogenesis, and low levels of serum adiponectin, which blocks apoptosis and induces biological effects in some tissues...
March 27, 2018: Journal of Ovarian Research
https://www.readbyqxmd.com/read/29573376/chicken-or-egg-outcomes-of-experimental-manipulations-of-maternally-transmitted-hormones-depend-on-administration-method-a-meta-analysis
#9
Edyta Podmokła, Szymon M Drobniak, Joanna Rutkowska
Steroid hormones are important mediators of prenatal maternal effects in animals. Despite a growing number of studies involving experimental manipulation of these hormones, little is known about the impact of methodological differences among experiments on the final results expressed as offspring traits. Using a meta-analytical approach and a representative sample of experimental studies performed on birds, we tested the effect of two types of direct hormonal manipulations: manipulation of females (either by implantation of hormone pellets or injection of hormonal solutions) and manipulation of eggs by injection...
March 24, 2018: Biological Reviews of the Cambridge Philosophical Society
https://www.readbyqxmd.com/read/29566165/leydig-cells-formation-function-and-regulation
#10
Barry R Zirkin, Vassilios Papadopoulos
Herein we summarize important discoveries made over many years about Leydig cell function and regulation. During the fetal period, fetal Leydig cells produce the high levels of androgen (testosterone or androstenedione, depending upon the species) required for differentiation of male genitalia and brain masculinization. Androgen production declines with loss of these cells, reaching a nadir at postpartum. Testosterone then gradually increases to high levels with adult Leydig cell development from stem cells...
March 16, 2018: Biology of Reproduction
https://www.readbyqxmd.com/read/29564258/the-evaluation-of-the-relationship-between-some-related-hormone-levels-and-diet-in-obese-or-overweight-patients-with-hirsutism-a-randomized-clinical-trial
#11
Atefeh Krouni, Sedighe Forouhari, Bahia Namavarjahromi, Mohammad Hossein Dabbaghmanesh, Arezoo Shayan, Sara Sepasi, Atefeh Zare
Introduction: Hirsutism is a common disorder that has remarkable physical and mental effects on individuals. No appropriate diet has yet specified for individuals with hirsutism. The present study was carried out to examine the effect of high-fibre, low-caloric balanced diet on some related hormone levels in obese or overweight women with hirsutism who had referred to clinics affiliated with Shiraz University of Medical Sciences. Materials and Methods: The present study was a clinical trial that was carried out on 47 obese or overweight women with hirsutism in 2014...
October 2017: Journal of Family Medicine and Primary Care
https://www.readbyqxmd.com/read/29555320/steroid-profiles-in-both-blood-serum-and-seminal-plasma-are-not-correlated-and-do-not-reflect-sperm-quality-study-on-the-male-reproductive-health-of-fifty-young-swiss-men
#12
Zufferey Fanny, Rahban Rita, Garcia Arnaud, Gagnebin Yoric, Boccard Julien, Tonoli David, Jeanneret Fabienne, Stettler Eric, Senn Alfred, Nef Serge, Rudaz Serge, F Rossier Michel
Steroids play an important role in sperm production and quality. These hormones have been extensively studied in blood, but poorly investigated in semen. The purpose of our study was to evaluate the relationship between sperm quality and steroid profiles in blood and semen in a small cohort of young Swiss men. Another objective was to determine whether the presence of xenobiotics or drugs could influence these profiles. Semen analysis was performed according to WHO guidelines, and steroid profiles in blood serum and seminal plasma were determined by two complementary approaches: a targeted investigation involving the quantification of a limited number of relevant steroids for testing putative correlations with sperm parameters and a global "steroidomic" analysis highlighting their complex metabolic relationship...
March 16, 2018: Clinical Biochemistry
https://www.readbyqxmd.com/read/29554767/steroid-hormonal-bioactivities-culprit-natural-and-synthetic-hormones-and-other-emerging-contaminants-in-waste-water-measured-using-bioassays-and-uplc-tq-ms
#13
Corine J Houtman, Rob Ten Broek, Abraham Brouwer
Emission of compounds with biological activities from waste water treatment plant (WWTP) effluents into surface waters is a topic of concern for ecology and drinking water quality. We investigated the occurrence of hormone-like activities in waste water sample extracts from four Dutch WWTPs and pursued to identify compounds responsible for them. To this aim, in vitro reporter gene bioassays for androgenic, anti-androgenic, estrogenic, glucocorticoid and progestogenic activity and a UPLC-tQ-MS target analysis method for 25 steroid hormones used in high volumes in pharmacy were applied...
March 5, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29551255/sex-steroids-sex-hormone-binding-globulin-and-levels-of-n-terminal-pro-brain-natriuretic-peptide-in-postmenopausal-women
#14
Marija Glisic, Lyda Z Rojas, Eralda Asllanaj, Kris G Vargas, Maryam Kavousi, M Arfan Ikram, Bart C J M Fauser, Joop S E Laven, Taulant Muka, Oscar H Franco
BACKGROUND: Amino-terminal pro-B-type natriuretic peptide (NT-proBNP) has a well-documented prognostic value for cardiovascular disease and sex-hormones are suggested to modulate NT-proBNP levels. OBJECTIVE: To examine whether endogenous sex-hormones and sex hormone-binding globulin (SHBG) are associated with NT-proBNP levels in postmenopausal women free of clinical cardiovascular diseases. METHODS: Total estradiol (E2 ), total testosterone (TT), androstenedione (AD), dehydroepiandrosterone (DHEA), dehydroepiandrosterone sulfate (DHEAS), sex hormone-binding globulin (SHBG) and NT-proBNP were assessed in 4112 postmenopausal women free of cardiovascular diseases from the prospective population-based Rotterdam Study...
March 6, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29531157/testicular-adrenal-rest-tumors-in-boys-with-21-hydroxylase-deficiency-timely-diagnosis-and-follow-up
#15
Mirjana Kocova, Vesna Janevska, Violeta Anastasovska
BACKGROUND: Testicular adrenal rest tumors (TARTs) are found in 30-94% of adult males with congenital adrenal hyperplasia (CAH). We sought to explore TART appearance through yearly ultrasound examination of testes in young boys with CAH, and its association with metabolic control and genetic mutations. METHODS: Twenty-five boys with 21-hydroxylase deficiency in the age group 4-18 years diagnosed during the period 2001-2016 were included in the study. ACTH, 17-hydroxyprogesterone, androstenedione and testosterone were measured at 4-month intervals...
March 12, 2018: Endocrine Connections
https://www.readbyqxmd.com/read/29524877/impact-of-inorganic-ions-and-ph-variations-on-toxicity-and-endocrine-potential-of-selected-environmentally-relevant-pharmaceuticals
#16
Monika Wieczerzak, Błażej Kudłak, Galina Yotova, Stefan Tsakovski, Vasil Simeonov, Jacek Namieśnik
Assessment of the impact of pharmaceutical residues on living organisms is a very complex subject. Apart from taking into account the toxicity of individual compounds, environmental factors should also be taken into account. In this paper, attempts were made to assess the impact of coexisting inorganic ions and changes in pH on the toxicity of ten selected pharmaceuticals. Two bioassays were used to measure the estrogenic and androgenic effects (XenoScreen YES/YAS - Saccharomyces cerevisiae) and acute toxicity (Microtox® - Vibrio fischeri)...
March 7, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29522931/salivary-cortisol-and-cortisone-responses-to-short-term-psychological-stress-challenge-in-late-adolescent-and-young-women-with-different-hyperandrogenic-states
#17
Marco Mezzullo, Flaminia Fanelli, Guido Di Dalmazi, Alessia Fazzini, Daniela Ibarra-Gasparini, Marianna Mastroroberto, Jenny Guidi, Antonio Maria Morselli-Labate, Renato Pasquali, Uberto Pagotto, Alessandra Gambineri
Hyperandrogenic disorders have been associated with psychological distress, reduced quality of life, anxiety and depression. The hypothalamic-pituitary-adrenal (HPA) axis plays a pivotal role in the adaptive response to stressor events. Salivary cortisol (SalF) and cortisone (SalE) testing have been proven to be useful in the evaluation of HPA-axis activity. This study investigated whether SalF and SalE responses to two putative stressor levels differed between the hyperandrogenic states in late adolescent and young women, thus measuring the HPA-axis adaptive response to acute stress events...
February 24, 2018: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/29517680/an-ovarian-leydig-cell-tumor-of-ultrasound-negative-in-a-postmenopausal-woman-with-hirsutism-and-hyperandrogenism-a-case-report
#18
Min Chen, Weibin Zhou, Zhe Zhang, Yuting Zou, Chengjiang Li
RATIONALE: The incidence of severe hyperandrogenism associated with masculinity in women is very low. While rare and difficult to diagnose, androgen secreting tumors should be suspected in women with hyperandrogenism and hirsutism, especially in the postmenopausal population. Herein we present one case of ovarian Leydig cell tumor (LCT) with markedly elevated serum testosterone levels and frank hirsutism. PATIENT CONCERNS: A 60-year-old woman, presented with increased hair growth and androgenic alopecia and the hormonal laboratory examination showed that she had elevated serum testosterone level and normal dehydroepiandrosterone sulfate (DHEAS), androstenedione, 17- hydroxyprogesterone, cortisol and thyroid stimulating hormone (TSH)...
March 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29517119/salivary-testosterone-may-not-serve-as-a-screening-test-in-the-diagnosis-of-biochemical-hyperandrogenism
#19
Urszula Ambroziak, Alina Kuryłowicz, Anna Kępczyńska-Nyk, Agnieszka Kondracka, Sylvia Gajda, Damian Sieńko
AIM: The diagnosis of biochemical hyperandrogenism is still challenging because a set of appropriate, recommended diagnostic tests has not been established. In our study, we aimed to answer the question of whether salivary testosterone is a reliable test to establish the diagnosis of biochemical hyperandrogenism as compared to serum total testosterone (TT) measured either by liquid chromatography-tandem mass spectrometry (LC-MS/MS) or immunoassay and to assess which set of biochemical tests would be the most appropriate for the identification of biochemical hyperandrogenism...
March 8, 2018: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/29512903/tracking-down-a-novel-steroid-hydroxylating-promiscuous-cytochrome-p450-cyp154c8-from-streptomyces-sp-w2233-sm
#20
Bikash Dangi, Ki-Hwa Kim, Sang-Ho Kang, Tae-Jin Oh
CYP154C8 from Streptomyces sp. was identified as a novel cytochrome P450 with substrate flexibility to different sets of steroids. The in vitro reaction of these steroids with CYP154C8 revealed interesting product formation patterns with the same group of steroids. Nuclear magnetic resonance study revealed the major product of corticosterone hydroxylated at the C21 position; while progesterone, androstenedione, testosterone, and 11-ketoprogesterone were exclusively hydroxylated at 16α position. However, the 16α-hydroxylated product of progesterone was further hydroxylated to yield dihydroxylated products...
March 7, 2018: Chembiochem: a European Journal of Chemical Biology
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