Results 51 to 60 of about 60,390 (275)

From adrenarche to aging of adrenal zona reticularis: precocious female adrenopause onset

Endocrine Connections, 2020
Objective: Adaptive changes in DHEA and sulfated-DHEA (DHEAS) production from adrenal zona reticularis (ZR) have been observed in normal and pathological conditions.
Emanuelle Nunes-Souza, Mônica Evelise Silveira, Monalisa Castilho Mendes, Seigo Nagashima, Caroline Busatta Vaz de Paula, Guilherme Vieira Cavalcante da Silva, Giovanna Silva Barbosa, Julia Belgrowicz Martins, Lúcia de Noronha, Luana Lenzi, José Renato Sales Barbosa, Rayssa Danilow Fachin Donin, Juliana Ferreira de Moura, Gislaine Custódio, Cleber Machado-Souza, Enzo Lalli, Bonald Cavalcante de Figueiredo   +16 more
doaj   +1 more source

Macrophage Membrane‐Cloaked, ROS‐Triggered Quercetin Nanocarriers Target Ovarian Lesions to Treat Polycystic Ovary Syndrome

Advanced Healthcare Materials, EarlyView.
The synthesis process of MM@PCD@QNPs and its potential mechanism for treating PCOS. (A) Assembly steps of MM@PCD@QNPs. (B) Synthesis and decomposition of MM@PCD@QNPs. (C) Potential therapeutic mechanisms of MM@PCD@QNPs for PCOS. PCD, PABP conjugated with DEX polymer; QUR, quercetin; CDI, N, N′‐carbonyldiimidazole; DEX, dextran; PABP, 4‐(hydroxymethyl ...
Wenzhu Li, Yu Guan, Nan Song, Feng Zhang, Zhimin Deng, Tailang Yin, Yanbing Yang, João Conde, Wenyi Jin, Zhinang Yin   +9 more
wiley   +1 more source

Cardiovascular Risk Factors and Dehydroepiandrosterone Sulfate Among Latinos in the Boston Puerto Rican Health Study. [PDF]

, 2019
Low blood dehydroepiandrosterone sulfate (DHEAS) levels have strong positive associations with stroke and coronary heart disease. However, it is unclear whether DHEAS is independently associated with cardiovascular risk factors.
Jiménez, Monik C, López, Lenny, Meigs, James B, Porneala, Bianca C, Rodriguez, Fátima, Tucker, Katherine L   +5 more
core  

A Nanoparticle‐Integrated Complete Manufacturing Pipeline of Chemically Engineered Exosomes

Advanced Science, EarlyView.
We report a novel manufacture technology of chemically engineered exosomes. The four steps of manufacturing, i.e., biogenesis, loading, isolation, and storage, are integrated by the use of a nanoparticle. The manufacture technology incorporates three innovative components, i.e., a new nano‐bio effect, a new composite nanoparticle, and a new isolation ...
Xiaowei Wen, Zixing Xu, Zerun Hao, Yanming Chen, Kai Xie, Haofan Yin, Xueying Wang, Jie Min, Sihan Sun, Baiding Chen, Chengxiu Ling, Mingming Xu, Yizhao Chen, Gang Ruan   +13 more
wiley   +1 more source

Evidence of the indirect hormonal activity of prohormones using liver S9 metabolic bioactivation and an androgen bioassay [PDF]

, 2008
Prohormones such as dehydroepiandrosterone (DHEA) are steroid precursors that do not show hormonal activity by themselves. Abuse of these prohormones in cattle fattening is hard to prove because of strong in vivo metabolism and the difficulty to detect ...
Bovee, T.F.H., Groot, M.J., Nielen, M.W.F., Peijnenburg, A.A.C.M., Rijk, J.C.W.   +4 more
core   +2 more sources

Dehydroepiandrosterone (DHEA) and dehydroepiandrosterone sulfate (DHEAS) as neuroactive neurosteroids [PDF]

Proceedings of the National Academy of Sciences, 1998
The observation was made that dehydroepiandrosterone (DHEA), as the unconjugated steroid, and its sulfate ester (DHEAS) are present in the brain of adult male rats (1). This finding was unforeseen because the rodent steroidogenic glands, including the adrenals, do not secrete significant amounts of DHEA (2).
E E, Baulieu, P, Robel
openaire   +2 more sources

Identification of A p300–SP1–BRD4 Transcriptional Axis as a Key Driver of AR Hyperactivation in Polycystic Ovarian Syndrome

Advanced Science, EarlyView.
This study reveals a pivotal epigenetic regulatory role for the histone acetyltransferase p300, demonstrating that its acetylation of histone 3 at lysine 18 and 27 (H3K18ac and H3K27ac), alongside the formation of the p300/BRD4/SP1 complex, drives AR activation and ovarian fibrosis in PCOS.
Zhengquan Zhu, Yihan Wang, Haiyun Chen, Xinye Yu, Tingyu Wang, Yajing Weng, Meihong Guo, Ying Huang, Gaojian Tao, Wangsen Cao, Yong Wang, Daojuan Wang   +11 more
wiley   +1 more source

Comparison of four different algorithms for the calculation of radioimmunoassay standard curves [PDF]

, 1980
Peer ...
Herndl, R., Marschner, I., Scriba, Peter Christian   +2 more
core   +2 more sources

Antioxidative Effects of Standardized Aronia melanocarpa Extract on Reproductive and Metabolic Disturbances in a Rat Model of Polycystic Ovary Syndrome

Antioxidants, 2022
Polycystic ovary syndrome (PCOS) represents the most common endocrinopathy among childbearing-age women, with oxidative stress (OS) underlying its etiopathogenesis. Metformin (MET) represents a frequently used agent in PCOS.
Jovan Rudic, Vladimir Jakovljevic, Nikola Jovic, Maja Nikolic, Jasmina Sretenovic, Slobodanka Mitrovic, Sergey Bolevich, Stefani Bolevich, Miroslav Mitrovic, Sasa Raicevic, Kristina Andric, Andjela Dimkic Milenkovic, Dejana Rakic, Jovana Joksimovic Jovic   +13 more
doaj   +1 more source

IGFBP5 Restores Endometrial Receptivity and Rescues Implantation Failure in Polycystic Ovary Syndrome

Advanced Science, EarlyView.
Impaired endometrial receptivity contributes to the poor pregnancy outcomes in women with PCOS. The authors found that decreased endometrial IL‐22 levels and disrupted STAT3‐IGFBP5 signaling pathway contributed to impaired endometrial receptivity. Supplementation with IL‐22 or IGFBP5 exerts a protective effect on implantation failure in PCOS‐like mice,
Baoying Liao, Chuyu Yun, Hongying Shan, Yuqian Wang, Xiunan Chen, Weisi Lian, Tianliu Peng, Min Zhao, Xunsi Qin, Kailun Hu, Ping Zhou, Yue Wang, Yanli Pang, Rong Li   +13 more
wiley   +1 more source