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https://www.readbyqxmd.com/read/28538390/decreased-cord-blood-estradiol-levels-in-related-to-mothers-with-gestational-diabetes
#1
Xiuyu Qi, Bo Gong, Jing Yu, Limin Shen, Wanling Jin, Zhenmin Wu, Jieyun Wang, Jie Wang, Zhiqi Li
Recent studies have revealed a link between estradiol (E2) and glucose homeostasis. We aimed to assess the association between cord blood hormone levels and the risk of gestational diabetes mellitus (GDM).A total of 204 pregnant women with GDM and 204 pregnant women without GDM (control) were included in the study. Maternal GDM were diagnosed using a 75 g oral glucose tolerance test at 24 to 26 weeks of gestation. Cord blood samples from neonates were collected immediately post delivery. Controls, which were randomly selected from the study population, were matched (cases to controls ratio: 1:1) to cases by age, sex of fetus, and gestational week...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28538378/effects-of-intensive-training-on-menstrual-function-and-certain-serum-hormones-and-peptides-related-to-the-female-reproductive-system
#2
Geum Joon Cho, Sung Won Han, Jung-Ho Shin, Tak Kim
The aim of this study was to assess the effects of intensive training on menstrual function and related serum hormones and peptides.Forty female participants who attended a training course for an officer at the Korea Third Military Academy, and had regular menstrual periods were enrolled. Menstrual questionnaires and fasting blood samples were collected before entry and at 4-week intervals for 8 weeks. The levels of corticotropin-releasing hormone (CRH), cortisol, prolactin, endorphin-β, neuropeptide Y (NPY), leptin, orexin-A, ghrelin, follicle-stimulating hormone (FSH), luteinizing hormone (LH), estradiol (E2), thyrotropin (TSH), and thyroxine (T4) were determined...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28538364/thalidomide-results-in-diminished-ovarian-reserve-in-reproductive-age-female-ibd-patients
#3
Xiang Peng, Min Zhi, Ming Wei, Ting-Ting Li, Min Zhang, Yuan-Qi Zhang, Huan He, Mingli Su, Wei Wang, Jun-Rong Chen, Jian Tang, Xiang Gao, Pin-Jin Hu, Xiao-Yan Liang
The effectiveness of thalidomide in treating inflammatory bowel disease (IBD) has been widely recognized. Meanwhile, many serious adverse drug reactions have been observed, but no know reports on ovarian reserve function.Female patients, ranging in age between 18 and 40, were referred to our institution to undergo sex hormone detection and ultrasonic scanning for ovarian function assessment, between February 1, 2016 and September 31, 2016.Thirty-three patients treated with thalidomide (group A), 73 patients without thalidomide (group B), and 78 healthy women as control were studied...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28535311/quantification-of-estradiol-uptake-in-zebrafish-embryos-and-larvae
#4
J Paige Souder, Daniel A Gorelick
Zebrafish are a powerful model system to assess the molecular and cellular effects of exposure to toxic chemicals during embryonic development. To study the effects of environmental endocrine disruptors, embryos and larvae are commonly exposed to supraphysiologic concentrations of these compounds in the water, but their bioavailability in zebrafish is largely unknown. One hypothesis is that supraphysiologic concentrations of estrogens in the water are required to achieve physiologic levels in vivo, however this has not been directly tested...
May 23, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28535255/tea-and-coffee-consumption-in-relation-to-dna-methylation-in-four-european-cohorts
#5
Weronica E Ek, Elmar W Tobi, Muhammad Ahsan, Erik Lampa, Erica Ponzi, Soterios A Kyrtopoulos, Panagiotis Georgiadis, L H Lumey, Bastiaan T Heijmans, Maria Botsivali, Ingvar A Bergdahl, Torgny Karlsson, Mathias Rask-Andersen, Domenico Palli, Erik Ingelsson, Åsa K Hedman, Lena M Nilsson, Paolo Vineis, Lars Lind, James M Flanagan, Åsa Johansson
Lifestyle factors, such as food choices and exposure to chemicals, can alter DNA methylation and lead to changes in gene activity. Two such exposures with pharmacologically active components are coffee and tea consumption. Both coffee and tea has been suggested to play an important role in modulating disease-risk in humans by suppressing tumour progression, decreasing inflammation and influencing estrogen metabolism. These mechanisms may be mediated by changes in DNA methylation.To investigate if DNA methylation in blood is associated with coffee and tea consumption we performed a genome-wide DNA methylation study for coffee and tea consumption in four European cohorts (N = 3,096)...
May 23, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28532828/expression-of-apelin-and-apelin-receptor-apj-in-porcine-ovarian-follicles-and-in%C3%A2-vitro-effect-of-apelin-on-steroidogenesis-and-proliferation-through-apj-activation-and-different-signaling-pathways
#6
A Rak, E Drwal, Ch Rame, K Knapczyk-Stwora, M Słomczyńska, J Dupont, E L Gregoraszczuk
Apelin was thought to be an adipocyte-specific hormone, but recent studies indicate a link between apelin and female reproductive function. Using real-time PCR, immunoblotting, immunohistochemistry and ELISA, we demonstrated expression of apelin and its receptor (APJ) in ovarian follicles of different sizes from mature pigs. Apelin concentration in the follicular fluid, and expression of both apelin and APJ, increased with follicular growth; greatest values were found in large follicles. Immunohistochemistry revealed the positive staining for apelin and APJ in membranes of granulosa, than theca cells...
July 1, 2017: Theriogenology
https://www.readbyqxmd.com/read/28532823/effects-of-rumen-protected-methionine-and-choline-supplementation-on-steroidogenic-potential-of-the-first-postpartum-dominant-follicle-and-expression-of-immune-mediators-in-holstein-cows
#7
D A V Acosta, M I Rivelli, C Skenandore, Z Zhou, D H Keisler, D Luchini, M N Corrêa, F C Cardoso
Multiparous Holstein cows were assigned in a randomized complete block design into four treatments from 21 d before calving to 30 d in milk (DIM). Treatments were: MET [n = 19, fed the basal diet + rumen-protected methionine at a rate of 0.08% (w/w) of the dry matter, Smartamine(®) M], CHO (n = 17, fed the basal diet + choline 60 g/d, Reashure(®)), MIX (n = 21, fed the basal diet + Smartamine(®) M at a rate of 0.08% (w/w) of the dry matter and 60 g/d Reashure(®)), and CON (n = 20, no supplementation, fed the close-up and fresh cow diets)...
July 1, 2017: Theriogenology
https://www.readbyqxmd.com/read/28532740/reduced-intellectual-ability-in-offspring-of-ovarian-hyperstimulation-syndrome-a-cohort-study
#8
Gu-Feng Xu, Cheng-Liang Zhou, Yi-Meng Xiong, Jing-Yi Li, Tian-Tian Yu, Shen Tian, Xian-Hua Lin, Yun Liao, Yuan Lv, Fang-Hong Zhang, Zhi-Wei Liu, Yin-Yin Shi, Yan Shen, Jin Sha, Dan Zhang, Yi-Min Zhu, Jian-Zhong Sheng, He-Feng Huang
BACKGROUND: Ovarian hyperstimulation syndrome (OHSS), a complication of ovarian stimulation, has various adverse effects on both pregnant women and their offspring. However, whether OHSS will affect intellectual ability in offspring is still unknown. METHODS: We recruited 86 Chinese children born to OHSS women and 172 children conceived with non-OHSS In Vitro Fertilization (IVF) in this cohort study. Their intellectual ability was assessed according to the Revised Chinese Version of the Wechsler Intelligence Scale for Children (C-WISC)...
May 18, 2017: EBioMedicine
https://www.readbyqxmd.com/read/28532683/the-essential-oil-from-the-twigs-of-cinnamomum-cassia-presl-inhibits-oxytocin-induced-uterine-contraction-in-vitro-and-in-vivo
#9
Lan Sun, Li-Na Liu, Jia-Chun Li, Yao-Zhong Lv, Shao-Bo Zong, Jun Zhou, Zheng-Zhong Wang, Jun-Ping Kou, Wei Xiao
ETHNOPHARMACOLOGICAL RELEVANCE: The twigs and bark of Cinnamomum cassia Presl (Lauraceae) are widely used in traditional Chinese medicine in the treatment of tumor, abdominal pain, dysmenorrhea, digestive system disease and inflammatory diseases. The aim of this study was to determine the inhibitory effect of the essential oil from the twigs of Cinnamomum cassia Presl (EOCC) on uterine contraction in vitro and in vivo. MATERIALS AND METHODS: The Institute of Cancer Research (ICR) mouse uterine contraction was induced by oxytocin (OT) exposure following estradiol benzoate pretreatment...
May 19, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28532594/the-endocrine-disrupting-alkylphenols-and-4-4-ddt-interfere-with-estrogen-conversion-and-clearance-by-mouse-liver-cytosol
#10
Talal El-Hefnawy, Claudia Hernandez, Laura P Stabile
Endocrine disrupting chemicals (EDCs) are ubiquitous compounds known for negative impacts on reproductive functions and for increasing cancer risk. EDCs are believed to cause the harmful effects in part through their inappropriate low-affinity binding to steroid receptors and other possible non-receptor mediated paradigms, however there is a need to further elucidate other mechanisms involving the direct and indirect impact of EDCs on reproductive functions. We examined the metabolism of 17β-estradiol (E2) and estrone (E1) by cell-free hepatic cytosol in the presence of alkylphenols (nonylphenol/NP and 4-tert-octylphenol/tOP), Dichlorodiphenyltrichloroethane (4,4'-DDT) and other EDCs...
May 19, 2017: Reproductive Biology
https://www.readbyqxmd.com/read/28531918/protective-effect-of-ethanolic-extract-of-urtica-urens-l-against-the-toxicity-of-imidacloprid-on-bone-remodeling-in-rats-and-antioxidant-activities
#11
Massara Mzid, Riadh Badraoui, Sameh Ben Khedir, Zouheir Sahnoun, Tarek Rebai
Imidacloprid (IMI) is very harmful to human health and cause problems. Recently, plants have been considered as potential agents for protection against these disorders. Urtica urens L. (UU) is very useful for relieving rheumatic pains and there is no scientific evidence justifying its use, which lets us think of its direct effect on the bone. This study aimed to investigate the protective effect of UU against toxicity effects of IMI in female rat. Rats were divided into control group, 3 groups treated with IMI at 50, 200 or 300mg/kg/day and 3 groups co-treated with IMI (50, 200 or 300mg/kg/day)+100mg/kg/day of UU...
May 16, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28531779/overweight-postmenopausal-women-with-different-plasma-estradiol-concentrations-present-with-a-similar-pattern-of-energy-expenditure-and-substrate-oxidation-rate-before-and-after-a-fatty-meal-challenge
#12
Roberta de Souza Santos, Andressa Feijó da Silva Santos, Deborah J Clegg, Odilon Iannetta, Julio Sérgio Marchini, Vivian Marques Miguel Suen
Menopause-related withdrawal of ovarian estrogens is associated with reduced energy metabolism and overall impairment of substrate oxidation. Estradiol's withdrawal after menopause is associated with a reduction in energy metabolism and impaired substrate oxidation, which contributes to weight gain and visceral fat accumulation. Here we aimed to investigate the association between plasma estradiol concentrations and energy expenditure (EE)/substrate oxidation in a group of overweight postmenopausal women before and after a fatty meal challenge...
October 2016: Clinical Nutrition ESPEN
https://www.readbyqxmd.com/read/28531369/should-high-bmi-be-a-reason-for-ivf-treatment-denial
#13
S Friedler, O Cohen, G Liberty, B Saar-Ryss, S Meltzer, T Lazer
Our aim was to examine the influence of BMI on the live-birth rate following IVF/ICSI and evaluate its specific contribution among other factors thus enabling accurate reproductive policy development. All patients that underwent IVF/ICSI at our center during January 2012-July 2015 were included in this retrospective study. A total of 1654 ICSI cycles were divided into four groups according to the patient's BMI (kg/m(2)): group I (normal weight): <25 (943 cycles); group II (overweight): 25-30 (403 cycles); group III (obese): 30-35 (212 cycles); group IV (morbid obesity): >35 (96 cycles)...
May 20, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28529452/estradiol-suppresses-tlr4-triggered-apoptosis-of-decidual-stromal-cells-and-drives-an-anti-inflammatory-th2-shift-by-activating-sgk1
#14
Yiyun Lou, Minhao Hu, Qijing Wang, Mu Yuan, Ning Wang, Fang Le, Lejun Li, Shisi Huang, Liya Wang, Xiangrong Xu, Fan Jin
A pro-inflammatory cytokine profile at the feto-maternal interface may predispose immune maladaptation notably in early miscarriages. We investigated the involvement of estradiol (E2)-activated serum-glucocorticoid regulated kinase 1 (SGK1) in preserving the tolerogenic and pro-survival intrauterine microenvironment beneficial to gestation maintenance. Decidual SGK1 was down-regulated in early miscarriage, consistent with the lower serum E2 concentration seen in pregnancy loss. Lipopolysaccharide (LPS)/Toll-like receptors 4 (TLR4) signaling induced apoptosis and the pro-inflammatory T helper type (TH) 1 response of decidual stromal cells (DSCs) were associated with miscarriage...
2017: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/28529128/role-of-gper-in-the-activation-of-endothelial-nitric-oxide-synthase
#15
Natalie C Fredette, Matthias R Meyer, Eric R Prossnitz
Estrogens are potent regulators of vascular tone, yet underlying receptor- and ligand-specific signaling pathways remain poorly characterized. The primary physiological estrogen 17β-estradiol (E2), a non-selective agonist of classical nuclear estrogen receptors (ERα and ERβ) as well as the G protein-coupled estrogen receptor (GPER), stimulates formation of the vasodilator nitric oxide (NO) in endothelial cells. Here, we studied the contribution of GPER signaling in E2-dependent activation of endothelial NO formation and subsequent vasodilation...
May 18, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28529127/antioxidant-peroxiredoxin-3-expression-is-regulated-by-17beta-estradiol-in-rat-white-adipose-tissue
#16
Marco Bauza-Thorbrügge, M Bel Galmés-Pascual, Miquel Sbert-Roig, J Francisco García-Palmer, Magdalena Gianotti, M Ana Proenza, Isabel Lladó
Peroxiredoxin 3 (PRX3) plays a role as a regulator of the adipocyte mitochondrial function due to its antioxidant activity. We have previously reported the existence of a sexual dimorphism in the mitochondrial oxidative stress status of many rat tissues such as white (WAT) and brown (BAT) adipose tissues. The aim was to elucidate whether sex hormones may play a role in PRX3 expression in the adipose tissues of rats. In in vivo experiments, male and female standard diet fed rats, high fat diet (HFD) fed rats and rosiglitazone-supplemented HFD (HDF+Rsg) fed rats, as well as ovariectomized (OVX) and 17beta-estradiol-supplemented OVX (OVX+E2) female rats were used...
May 18, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28528414/tissue-contaminant-burdens-in-san-francisco-estuary-white-sturgeon-acipenser-transmontanus-implications-for-population-recovery
#17
Deke T Gundersen, Steven C Zeug, Robert B Bringolf, Joseph Merz, Zachary Jackson, Molly A H Webb
The San Francisco Estuary (SFE) is heavily influenced by anthropogenic activities, including historic and chronic contaminant inputs. These contaminants can adversely affect SFE fish populations, particularly white sturgeon, because they are a benthic dwelling, long-lived species. We measured a suite of metals and organic contaminants in liver and gonad tissues of 25 male and 32 female white sturgeon as well as several physiological indicators of sturgeon health. Most sturgeon (68% of males and 83% of females) were estimated to be between 13 and 17 years of age...
May 20, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28527954/sex-differences-in-the-effect-of-chronic-mild-stress-on-mouse-prefrontal-cortical-bdnf-levels-a-role-of-major-ovarian-hormones
#18
Bhanu Chandra Karisetty, Pranav Chintamani Joshi, Arvind Kumar, Sumana Chakravarty
Depression induced by stress is affected by sex, age and hormonal status of the animal and also by duration and type of the stressors. Moreover, higher prevalence of depression and comorbidities in women than men implies the need to include the sex variable in studies on animal models of depression. The present study was therefore initiated to evaluate the effect of sex and ovarian hormones on depression-like phenotypes in mice exposed to a 21-day Chronic Variable Mild Stress (CVMS) paradigm. Adult male, intact female and, ovariectomized (OVX) female mice exposed to CVMS displayed despair behavior, a depression-like phenotype, in all the groups...
May 17, 2017: Neuroscience
https://www.readbyqxmd.com/read/28527702/crispr-cas9-induced-disruption-of-wt1a-and-wt1b-reveals-their-different-roles-in-kidney-and-gonad-development-in-nile-tilapia
#19
Dongneng Jiang, Jinlin Chen, Zheng Fan, Dejie Tan, Jiue Zhao, Hongjuan Shi, Zhilong Liu, Wenjing Tao, Minghui Li, Deshou Wang
Wilms tumor 1 (Wt1) is an essential factor for urogenital system development. Teleosts have two wt1s, named as wt1a and wt1b. In this study, the expression pattern of wt1a and wt1b and their functions on the urogenital system were analyzed by in situ hybridization and CRISPR/Cas9. wt1a was found to be expressed in the glomerulus at 3 dah (days after hatching), earlier than wt1b. wt1a and wt1b were simultaneously expressed in the somatic cells of gonads at 3 dah, while their cell locations were similar, but not identical in adult fish gonads...
May 17, 2017: Developmental Biology
https://www.readbyqxmd.com/read/28527568/evolution-of-nuclear-receptors-and-ligand-signaling-toward-a-soft-key-lock-model
#20
Guillaume Holzer, Gabriel V Markov, Vincent Laudet
Nuclear receptors (NRs) are a family of ligand-regulated transcription factors that modulate a wide variety of physiological functions in a ligand-dependent manner. The first NRs were discovered as receptors of well-known hormones such as 17β-estradiol, corticosteroids, or thyroid hormones. In these cases a direct activation of the receptor transcriptional activity by a very specific ligand, with nanomolar affinity, was demonstrated, providing a strong conceptual framework to understand the mechanism of action of these hormones...
2017: Current Topics in Developmental Biology
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