estradiol receptors
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Author(s):  
Débora Santos Rocha ◽  
Luiz Carlos Kucharski

Abstract The relationship between menopause and the development of metabolic diseases is well established. In postmenopause women, there is an expansion of visceral white adipose tissue (WATv), which highly contributes to the rise of circulating lipids. Meanwhile, muscle glucose uptake decreases and hepatic glucose production increases. Consequently, in the pancreas, lipotoxicity and glycotoxicity lead to deficient insulin production. These factors initiate an energy imbalance and enhance the probability of developing cardiovascular and metabolic diseases. Although the activation of estradiol receptors (ER) has been shown to be beneficial for the WAT stock pattern, leading to the insulin-sensitive phenotype, authors have described the risk of these receptors’ activation, contributing to neoplasia development. The selective activation of beta-type ER (ERβ) seems to be a promising strategy in the treatment of energy imbalance, acting on several tissues of metabolic importance and allowing an intervention with less risk for the development of estrogen-dependent neoplasia. However, the literature on the risks and benefits of selective ERβ activation still needs to increase. In this review, several aspects related to ERβ were considered, such as its physiological role in tissues of energy importance, beneficial effects, and risks of its stimulation during menopause. PubMed, SciELO, Cochrane, and Medline/Bireme databases were used in this study.





Neuroscience ◽  
2020 ◽  
Vol 426 ◽  
pp. 59-68 ◽  
Author(s):  
Beatriz Carrillo ◽  
Paloma Collado ◽  
Francisca Díaz ◽  
Julie A. Chowen ◽  
Daniela Grassi ◽  
...  


Author(s):  
Luiz F. Sampaio Neto ◽  
Maria Cecilia Ferro ◽  
Laura D. Garcia ◽  
Beatriz C. Ribeiro




2019 ◽  
Vol 102 (2) ◽  
pp. 316-326 ◽  
Author(s):  
Rafael R Domingues ◽  
O J Ginther ◽  
Victor E Gomez-León ◽  
Milo C Wiltbank

Abstract Initiation of luteolysis in ruminants is variable due to ill-defined mechanisms. Cycles of two follicular waves are shorter and have earlier luteolysis than three-wave cycles. This study validated a cytobrush technique for evaluating dynamics of endometrial gene expression and associated changes in mRNA with timing of luteolysis, based on circulating progesterone and ultrasound-determined changes in blood flow and volume of corpus luteum (CL). On day 8 (ovulation = day 0), Holstein heifers were randomized into two groups: cytobrush group (n = 9) had an endometrial sample collected every 48 h from day 8 until end of luteolysis (CL blood flow ≤ 20%) and control group was sampled only once either before (day 12; n = 4) or at the end of luteolysis (n = 5). Concentrations of progesterone, CL blood flow, CL volume, and the frequency of two and three-wave cycles were similar between groups. Endometrial mRNA for progesterone receptors and estradiol receptors 1 and 2 was greater on day 8 and decreased thereafter similarly in two and three-wave cycles. Oxytocin receptor mRNA increased earlier in two vs three-wave cycles (day 14 vs 18), and the increase was associated with the onset of luteolysis. In conclusion, the cytobrush technique allowed in vivo collection of multiple endometrial samples during the estrous cycle. Endometrial mRNA expression of steroid receptors did not explain the variability in timing of onset of luteolysis in heifers while the later onset of luteolysis in three-wave cycles was associated with later up-regulation of oxytocin receptor mRNA.



eNeuro ◽  
2019 ◽  
Vol 6 (1) ◽  
pp. ENEURO.0446-18.2019 ◽  
Author(s):  
Zhimin Song ◽  
Hongyan Yang ◽  
Elizabeth M. Peckham ◽  
Jill B. Becker


2019 ◽  
Vol 52 (10) ◽  
pp. 855-859
Author(s):  
E. N. Kareva ◽  
D. A. Tikhonov ◽  
S. E. Mironov ◽  
S. A. Fedoreev ◽  
N. I. Kulesh ◽  
...  


2017 ◽  
Vol 10 (3) ◽  
pp. 1061-1069 ◽  
Author(s):  
Omnia E. Kelany ◽  
Howayda E. Khaled ◽  
Amal M. El-Nahla ◽  
Heba M. A. Abdelrazek ◽  
Mohamed M. Abdel-Daim


PLoS ONE ◽  
2016 ◽  
Vol 11 (2) ◽  
pp. e0150007 ◽  
Author(s):  
Zahra Moinfar ◽  
Hannes Dambach ◽  
Bodo Schoenebeck ◽  
Eckart Förster ◽  
Nora Prochnow ◽  
...  


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