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https://www.readbyqxmd.com/read/28226203/characteristic-changes-in-decidual-gene-expression-signature-in-spontaneous-term-parturition
#1
Haidy El-Azzamy, Andrea Balogh, Roberto Romero, Yi Xu, Christopher LaJeunesse, Olesya Plazyo, Zhonghui Xu, Theodore G Price, Zhong Dong, Adi L Tarca, Zoltan Papp, Sonia S Hassan, Tinnakorn Chaiworapongsa, Chong Jai Kim, Nardhy Gomez-Lopez, Nandor Gabor Than
Background: The decidua has been implicated in the "terminal pathway" of human term parturition, which is characterized by the activation of pro-inflammatory pathways in gestational tissues. However, the transcriptomic changes in the decidua leading to terminal pathway activation have not been systematically explored. This study aimed to compare the decidual expression of developmental signaling and inflammation-related genes before and after spontaneous term labor in order to reveal their involvement in this process...
February 22, 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28211546/differential-effects-of-hormones-on-cellular-metabolism-in-keratoconus-in-vitro
#2
Tina B McKay, Jesper Hjortdal, Henrik Sejersen, Dimitrios Karamichos
Keratoconus (KC) is a corneal thinning disease with an onset commonly immediately post-puberty and stabilization by 40 to 50 years of age. The role of hormones in regulating corneal tissue structure in homeostatic and pathological conditions is unknown. Our group recently linked altered hormone levels to KC. Our current study sought to investigate and delineate the effects of exogenous hormones, such as androgen, luteotropin, and estrogen, on corneal stroma bioenergetics. We utilized our established 3D in vitro model to characterize the effects of DHEA, prolactin, 17β-estradiol on insulin-growth factor-1 and -2 (IGF-1, -2) signaling and metabolic function in primary corneal fibroblasts from healthy controls (HCFs) and KC patients (HKCs)...
February 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28209382/err%C3%AE-a-junior-orphan-with-a-senior-role-in-metabolism
#3
REVIEW
Jagannath Misra, Don-Kyu Kim, Hueng-Sik Choi
Estrogen-related receptor (ERR)γ is an orphan nuclear hormone receptor that belongs to the ERR subfamily of transcription factors. No endogenous ligand has been identified to date. ERRγ possesses ligand-independent transcriptional activity that is regulated by co-regulator interactions, and post-translational modifications (PTMs). Recent data from animal models have established ERRγ as a crucial mediator of multiple endocrine and metabolic signals. ERRγ plays important roles in pathological conditions such as insulin resistance, alcoholic liver injury, and cardiac hypertrophy, and controls energy metabolism in the heart, skeletal muscle, and pancreatic β cells...
February 13, 2017: Trends in Endocrinology and Metabolism: TEM
https://www.readbyqxmd.com/read/28195989/time-since-menopause-and-skeletal-muscle-estrogen-receptors-pgc-1%C3%AE-and-ampk
#4
Young-Min Park, Rocio I Pereira, Christopher B Erickson, Tracy A Swibas, Chounghun Kang, Rachael E Van Pelt
OBJECTIVE: Short-term administration of estradiol (E2) improves insulin-stimulated glucose disposal rate in early postmenopausal (EPM) women compared with a reduction in late postmenopausal (LPM) women. The underlying mechanisms by which E2 action on glucose disposal rate reversed from beneficial early to harmful late in menopause is unknown, but might include adverse changes in estrogen receptors (ERs) or other biomarkers of cellular energy metabolism with age or duration of estrogen deficiency...
February 13, 2017: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/28191524/renin-angiotensin-aldosterone-system-in-insulin-resistance-and-metabolic-syndrome
#5
Undurti N Das
Obesity and its consequent complications such as hypertension and metabolic syndrome are increasing in incidence in almost all countries. Insulin resistance is common in obesity. Renin- angiotensin system (RAS) is an important target in the treatment of hypertension and drugs that act on RAS improve insulin resistance and decrease the incidence of type 2 diabetes mellitus, explaining the close association between hypertension and type 2 diabetes mellitus. RAS influences food intake by modulating the hypothalamic expression of neuropeptide Y and orexins via AMPK dephosphorylation...
June 1, 2016: Journal of Translational Internal Medicine
https://www.readbyqxmd.com/read/28184938/new-insights-and-future-perspectives-in-the-therapeutic-strategy-of-adrenocortical-carcinoma-review
#6
Antonio Stigliano, Lidia Cerquetti, Pina Lardo, Elisa Petrangeli, Vincenzo Toscano
Adrenocortical carcinoma (ACC) is a rare endocrine malignancy with an incidence ranging from 0.7 to 2.0 cases/million people per year. Hypercortisolism represents the most common clinical presentation in many patients although, less frequently, some ACC secreting androgens and estrogens are even more pathognomonic compared to cortisol secretion. Currently, radical surgery, when feasible, is still the only curative therapy. Mitotane, an adrenolytic drug, is used in the adjuvant setting and in combination with chemotherapy drugs in metastatic disease...
March 2017: Oncology Reports
https://www.readbyqxmd.com/read/28180948/tributyltin-exposure-at-noncytotoxic-doses-dysregulates-pancreatic-%C3%AE-cell-function-in-vitro-and-in-vivo
#7
Ya-Wen Chen, Kuo-Cheng Lan, Jing-Ren Tsai, Te-I Weng, Ching-Yao Yang, Shing-Hwa Liu
Tributyltin (TBT) is an endocrine disruptor. TBT can be found in food and in human tissues and blood. Several animal studies revealed that organotins induced diabetes with decreased insulin secretion. The detailed effect and mechanism of TBT on pancreatic β-cell function still remain unclear. We investigated the effect and mechanism of TBT exposure at noncytotoxic doses relevant to human exposure on β-cell function in vitro and in vivo. The β-cell-derived RIN-m5F cells and pancreatic islets from mouse and human were treated with TBT (0...
February 8, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/28161095/environmental-obesogen-tributyltin-chloride-leads-to-abnormal-hypothalamic-pituitary-gonadal-axis-function-by-disruption-in-kisspeptin-leptin-signaling-in-female-rats
#8
Gabriela C Sena, Leandro C Freitas-Lima, Eduardo Merlo, Priscila L Podratz, Julia F P de Araújo, Poliane A A Brandão, Maria T W D Carneiro, Marina C Zicker, Adaliene V M Ferreira, Christina M Takiya, Carolina M de Lemos Barbosa, Marcelo M Morales, Ana Paula Santos-Silva, Leandro Miranda-Alves, Ian V Silva, Jones B Graceli
Tributyltin chloride (TBT) is a xenobiotic used as a biocide in antifouling paints that has been demonstrated to induce endocrine-disrupting effects, such as obesity and reproductive abnormalities. An integrative metabolic control in the hypothalamus-pituitary-gonadal (HPG) axis was exerted by leptin. However, studies that have investigated the obesogenic TBT effects on the HPG axis are especially rare. We investigated whether metabolic disorders as a result of TBT are correlated with abnormal hypothalamus-pituitary-gonadal (HPG) axis function, as well as kisspeptin (Kiss) action...
March 15, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28118985/mechanisms-of-modulation-of-the-egr-gene-family-in-mammary-epithelial-cells-of-different-species
#9
P Santino, E Martignani, S Miretti, M Baratta, P Accornero
In the adult female, within the estrous cycle, the mammary gland undergoes multiple rounds of growth, with increased cellular proliferation, and involution, with increased apoptosis. The increase in proliferation is elicited by endocrine (Estrogen, Progesterone), as well as locally produced (Epidermal growth factor, Insulin-like growth factor, etc) growth factors. Among the genes that are modulated during cellular proliferation, immediate early genes play a fundamental role, being rapidly upregulated and then downregulated within the G0/G1 phase of the cell cycle, allowing the progression to the subsequent phases...
January 21, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/28115579/the-role-of-sex-steroids-in-white-adipose-tissue-adipocyte-function
#10
Annie E Newell-Fugate
With the increasing knowledge that gender impacts normal physiology, much biomedical research has begun to focus on the differential effects of sex on tissue function. Sexual dimorphism in mammals is due to the combined effects of both genetic and hormonal factors. Hormonal factors are mutable particularly in females where the estrous cycle dominates the hormonal milieu. Given the severity of the obesity epidemic and the fact that there are differences in obesity rates in men and women, the role of sex in white adipose tissue function is being recognized as increasingly important...
January 23, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28114909/low-glycemic-index-diet-exercise-and-vitamin-d-to-reduce-breast-cancer-recurrence-dedica-design-of-a-clinical-trial
#11
Livia S A Augustin, Massimo Libra, Anna Crispo, Maria Grimaldi, Michele De Laurentiis, Massimo Rinaldo, Massimiliano D'Aiuto, Francesca Catalano, Giuseppe Banna, Francesco Ferrau', Rosalba Rossello, Diego Serraino, Ettore Bidoli, Samuele Massarut, Guglielmo Thomas, Davide Gatti, Ernesta Cavalcanti, Monica Pinto, Gabriele Riccardi, Edward Vidgen, Cyril W C Kendall, David J A Jenkins, Gennaro Ciliberto, Maurizio Montella
BACKGROUND: Mechanisms influencing breast cancer (BC) development and recurrence include hyperglycemia, hyperinsulinemia, high insulin-like growth factor-1, high circulating estrogen, inflammation and impaired cellular differentiation/apoptosis. A lifestyle program that targets all the above mechanisms may be warranted. Low glycemic index (GI) foods produce lower post-prandial glucose and insulin responses and have been associated with lower BC risk. Moderate physical activity post-diagnosis reduces BC recurrence and mortality, partly explained by reduced insulin and estrogen levels...
January 23, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28103994/-analysis-of-microrna-expression-profile-in-serum-of-patients-with-electrical-burn-or-thermal-burn
#12
Q F Ruan, M J Jiang, Z Q Ye, C L Zhao, W G Xie
Objective: To explore the differential expression of microRNAs in the serum among patients with electrical burn or thermal burn and healthy persons and to explore the significance. Methods: In this study we included three patients with electrical burn and three patients with thermal burn, conforming to the inclusion criteria and hospitalized in our burn ward from June to August 2015, and three healthy adult volunteers. Their serum samples were separated from whole blood and divided into electrical burn group, thermal burn group, and normal control group...
January 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/28096640/prevalence-of-metabolic-syndrome-in-pre-and-post-menopausal-women-a-prospective-study-from-apex-institute-of-north-india
#13
Sandeep Sharma, Neelam Aggarwal, Bharti Joshi, Vanita Suri, Sanjay Badada
BACKGROUND: The metabolic syndrome (MS) (syndrome X, insulin resistance syndrome) is a constellation of metabolic abnormalities and a complex predisease state that predicts future development of type 2 diabetes mellitus and cardiovascular disease. Menopausal transition and postmenopausal state are considered as a vulnerable period for developing MS, and this increased risk has been attributed to decreasing estrogen levels with an increasing risk of insulin resistance following menopause...
October 2016: Journal of Mid-life Health
https://www.readbyqxmd.com/read/28096479/igf-1-receptor-modulates-foxo1-mediated-tamoxifen-response-in-breast-cancer-cells
#14
Ali Vaziri-Gohar, Yan Zheng, Kevin D Houston
: Tamoxifen is a common adjuvant treatment for ERalpha-positive breast cancer patients, however acquired resistance abrogates the efficacy of this therapeutic approach. We recently demonstrated that G protein-coupled estrogen receptor 1 (GPER1) mediates tamoxifen action in breast cancer cells by inducing insulin-like growth factor binding protein-1 (IGFBP-1) to inhibit IGF-1-dependent signaling. To determine if dysregulation of IGFBP-1 induction is associated with tamoxifen resistance, IGFBP-1 transcription was measured in tamoxifen-resistant MCF-7 cells (TamR) after tamoxifen (Tam) treatment...
January 17, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28095041/oral-versus-transdermal-estrogen-in-turner-syndrome-a-systematic-review-and-meta-analysis
#15
Feras Zaiem, Fares Alahdab, Alaa Al Nofal, Mohammad Hassan Murad, Asma Javed
OBJECTIVE: To conduct a systematic review and meta-analysis comparing transdermal estrogens (TDE) versus oral estrogens (OE) in Turner syndrome (TS). METHOD: Randomized trials and observational comparative studies with a minimal follow up of 6 months for skeletal and metabolic outcomes and serum hormone changes. Outcomes were pooled with a random effects model and were reported as mean difference between OE and TDE groups and 95% confidence interval (CI). RESULT: Of 845 candidate references, 4 studies were included...
January 17, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/28077498/modulation-of-shbg-binding-to-testosterone-and-estradiol-by-sex-and-morbid-obesity
#16
Maria Del Mar Grasa, José Gulfo, Núria Camps, Rosa Alcalá, Laura Monserrat, José María Moreno-Navarrete, F Ortega, Montserrat Esteve, Xavier Remesar, José Antonio Fernández-López, José Manuel Fernández-Real, Marià Alemany
OBJECTIVE: Sex hormone-binding globulin (SHBG) binds and transports testosterone and estradiol in plasma. The possibility that SHBG is a mixture of transporting proteins has been postulated. We analyzed in parallel the effects of obesity status on the levels and binding capacity of circulating SHBG and their relationship with testosterone and estradiol. DESIGN: Anthropometric measures and plasma were obtained from apparently healthy young (i.e. 35 ± 7 years) premenopausal women (n=32) and men (n=30), with normal weight and obesity (BMI>30 kg·m(-2))...
January 11, 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28076434/diabetes-and-breast-cancer-subtypes
#17
Heleen K Bronsveld, Vibeke Jensen, Pernille Vahl, Marie L De Bruin, Sten Cornelissen, Joyce Sanders, Anssi Auvinen, Jari Haukka, Morten Andersen, Peter Vestergaard, Marjanka K Schmidt
BACKGROUND: Women with diabetes have a worse survival after breast cancer diagnosis compared to women without diabetes. This may be due to a different etiological profile, leading to the development of more aggressive breast cancer subtypes. Our aim was to investigate whether insulin and non-insulin treated women with diabetes develop specific clinicopathological breast cancer subtypes compared to women without diabetes. METHODS AND FINDINGS: This cross-sectional study included randomly selected patients with invasive breast cancer diagnosed in 2000-2010...
2017: PloS One
https://www.readbyqxmd.com/read/28028927/foxc1-is-associated-with-estrogen-receptor-alpha-and-affects-sensitivity-of-tamoxifen-treatment-in-breast-cancer
#18
Jinhua Wang, Yali Xu, Li Li, Lin Wang, Ru Yao, Qiang Sun, Guanhua Du
FOXC1 is a member of Forkhead box transcription factors that participates in embryonic development and tumorigenesis. Our previous study demonstrated that FOXC1 was highly expressed in triple-negative breast cancer. However, it remains unclear what is the relation between FOXC1 and ERα and if FOXC1 regulates expression of ERα. To explore relation between FOXC1 and ERα and discover regulation of ERα expression by FOXC1 in breast cancer, we analyzed data assembled in the Oncomine and TCGA, and found that there was significantly higher FOXC1 expression in estrogen receptor-negative breast cancer than that in estrogen receptor-positive breast cancer...
January 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28024987/effects-of-high-intensity-training-on-cardiovascular-risk-factors-in-premenopausal-and-postmenopausal-women
#19
Camilla M Mandrup, Jon Egelund, Michael Nyberg, Martina H Lundberg Slingsby, Caroline Andersen, Sofie Løgstrup, Jens Bangsbo, Charlotte Suetta, Bente Stallknecht, Ylva Hellsten
BACKGROUND: Menopause is associated with increased risk of cardiovascular disease and the causal factors have been proposed to be the loss of estrogen and the subsequent alterations of the hormonal milieu. However, which factors contribute to the deterioration of cardiometabolic health in postmenopausal women is debated as the menopausal transition is also associated with increased age and fat mass. Furthermore, indications of reduced cardiometabolic adaptations to exercise in postmenopausal women add to the adverse health profile...
December 23, 2016: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28009055/life-history-evolution-reproduction-and-the-origins-of-sex-dependent-aging-and-longevity
#20
Robert C Brooks, Michael G Garratt
Males and females in many species differ in how they age and how long they live. These differences have motivated much research, concerning both their evolution and the underlying mechanisms that cause them. We review how differences in male and female life histories have evolved to shape patterns of aging and some of the mechanisms and pathways involved. We pay particular attention to three areas where considerable potential for synergy between mechanistic and evolutionary research exists: (1) the role of estrogens, androgens, the growth hormone/insulin-like growth factor 1 pathway, and the mechanistic target of rapamycin signaling pathway in sex-dependent growth and reproduction; (2) sexual conflict over mating rate and fertility, and how mate presence or mating can become an avenue for males and females to directly affect each other's life span; and (3) the link between dietary restriction and aging, and the emerging understanding that only the restriction of certain nutrients is involved and that this is linked to reproduction...
February 2017: Annals of the New York Academy of Sciences
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