Results 41 to 50 of about 30,150 (245)

Fosl2 Regulates FSH‐Dependent Follicle Maturation Through Feedback Amplification of FSH/FSHR Signaling

Advanced Science, EarlyView.
This study identifies a FOSL2‐driven positive feedback loop that amplifies FSH/FSHR signaling. During FSH‐dependent follicle maturation, FSH induces Fosl2 expression via the cAMP‐PKA‐CREB cascade. FOSL2 in turn binds the promoters of Fshr and estrogen‐biosynthesis genes to enhance their transcription, thereby increasing Fshr mRNA level and amplifying ...
Hongru Shi, Chaoli Chen, Zaohong Ran, Jianning Liao, Zian Wu, Xiaodong Wang, Yongheng Zhao, Wenkai Ke, Bowen Tan, Yun Liu, Youqiang Su, Wei Ren, Xiang Li, Changjiu He   +13 more
wiley   +1 more source

Paternal Caffeine Exposure Programs Offspring Stress Vulnerability via Sperm Dlk1‐Dio3 Imprinting‐Directed Remodeling of a Novel Neural Circuit

Advanced Science, EarlyView.
The study elucidates that paternal preconception stress can drive offspring hyperresponsivity of the stress system via hypomethylation of a specific DNA region in sperm. This key link is confirmed in a cohort of prospective fathers: the epigenetic alteration is associated with elevated stress hormone levels.
Mengxi Lu, Gaole Dai, Sen Zhu, Shuai Zhang, Tingting Wang, Yuan Meng, Fang Yang, Xiaoyi Han, Hui Wang, Hao Kou, Dan Xu   +10 more
wiley   +1 more source

Immunolocalization of steroidogenic enzymes in the vaginal mucous of Galea spixii during the estrous cycle. [PDF]

, 2017
BackgroundThe synthesis of sex steroids is controlled by several enzymes such as17α-hydroxylase cytochrome P450 (P450c17) catalyzing androgen synthesis and aromatase cytochrome P450 (P450arom) catalyzing estrogen synthesis, both of which must complex ...
Assis Neto, Antônio Chaves de, Conley, Alan James, de Oliveira, Moacir Franco, Dos Santos, Amilton Cesar, Oliveira, Gleidson Benevides, Viana, Diego Carvalho   +5 more
core   +1 more source

Optimization and verification of high‐fat diet formulation for establishing a rat model of obesity‐related precocious puberty

Animal Models and Experimental Medicine, EarlyView.
We identified 45% HFD as the optimal formulation to establish a juvenile rat model of obesity‐related precocious puberty. It elicits robust phenotypic (early vaginal opening, obesity), histological (advanced ovarian development), and endocrine (elevated HPG axis hormones) alterations, with leptin‐mediated GnRH secretion as a core mechanistic driver ...
Jiayi Gong, Wei Qian, Deji Song, Kang Li, Li Zhang, Li Shi   +5 more
wiley   +1 more source

Screening of vulvovaginal infections during pregnancy in resource constrained settings: Implications on preterm delivery

Journal of Infection and Public Health, 2017
The present study was undertaken to evaluate the efficacy of clinical and microbiological investigations available in limited resource settings for an effective diagnosis of vaginal infections/abnormal vaginal microbiota among pregnant women.
Chaitanya Tellapragada, Vandana K. Eshwara, Parvati Bhat, Asha Kamath, Sandhya Aletty, Chiranjay Mukhopadhyay   +5 more
doaj   +1 more source

A preclinical mouse model mimicking the ovarian cancer‐induced estrogen deficiency‐depression axis

Animal Models and Experimental Medicine, EarlyView.
A preclinical mouse model of ovarian cancer–related depression was developed by combining intraperitoneal tumor cell injection, ovariectomy, and chronic restraint stress. The model replicates key clinical features including estrogen deficiency, depressive‐like behaviors, and tumor progression, and provides a reliable tool for studying the endocrine ...
Jiamin Liu, Yafei Yang, Chunxi Liu, Danting Wen, Tingyu Zhao, Ping Xie, Jing Xiao   +6 more
wiley   +1 more source

A novel mouse model of endometriosis: Simulating the recurrent hemorrhagic microenvironment of clinical lesions

Animal Models and Experimental Medicine, EarlyView.
To address the limitations of existing models, this study innovatively established a mouse model of endometriosis (EMs) capable of mimicking cyclic bleeding. Our results confirmed that this model recapitulates the complete pathological progression from ectopic lesion establishment to systemic responses, exhibiting superior clinical relevance compared ...
Yu Zhuang, Yan Zan, Tiantian Ma, Xiaoquan Huang, Junwei Li, Liangjun Xia, Yuping Sa, Youbing Xia   +7 more
wiley   +1 more source

OESTRUS DETECTION IN THE NIGERIAN MONGREL BITCH: APPLICATION OF VAGINAL CYTOLOGY

Pakistan Veterinary Journal, 2001
Vaginal smears from 45 multiparous Nigerian Mongrel bitches in proestrus (n=10), oestrus (n=22) and pregnancy (n=13) were examined, Differential cell count of exfoliated vaginal epithelial cells showed that the mean percentage of superficial cells was 95
G. D. Mshelia, J. D. Amin and S. U. R. Chaudhari
doaj  

DYNAMICS OF SOME VAGINAL PARAMETERS IN NON-PREGNANT BITCHES AFTER MID-LUTEAL AGLEPRISTONE TREATMENT

Slovenian Veterinary Research, 2016
The aim of our study was to investigate the effects of the antiprogestin aglepristone after its application in bitches with high serum progesterone concentrations on some specific vaginal parameters. Twelve non-pregnant female dogs from different breeds
Anton Antonov, Plamen Georgiev, Julieta Dineva, Theresa Conze, Radostina Dimitrova, Axel Wehrend   +5 more
doaj   +1 more source

Tetraspanin‐ESCRT sorting drives miR‐29b packaging into extracellular vesicles to reverse fibrosis in intrauterine adhesions

BMEMat, EarlyView.
MiR‐29b is enriched in extracellular vesicles (EVs) via a tetraspanin transporter‐dependent endocytosis and sorting complex required for the endosomal transport (ESCRT)‐dependent pathway. These EVs target the 3′ untranslated region (3′UTR) of TGFB2, thereby inhibiting the TGF‐β/Smad3 signaling pathway and repairing endometrial damage in intrauterine ...
Lihao Chen, Jianfeng Wu, Shunhan Zhang, Siqi Huang, Yingjun Xie, Hongda Chen, Yinghong Yang, Lan Xiao, Ding Wang, Keke Wu, Xiaofang Sun   +10 more
wiley   +1 more source