Results 21 to 30 of about 20,698 (262)

Experience of Using Letrozole as a First-Line Ovulation Induction Agent in Polycystic Ovary Syndrome (PCOS) [PDF]

Al Ameen Journal of Medical Sciences, 2011
Objectives: To study the effects of aromatase inhibitor- letrozole, as a first-line ovulation inducing agent in anovulatory infertility due to PCOS (Polycystic ovary syndrome).
Nupur Nandi *, Mahua Bhattacharya, Amit Tolasaria and Banasree Bhadra
doaj  

Use of Equine Pituitary Extract (EPE) in low doses to induce double ovulation in mares

Brazilian Journal of Veterinary Medicine, 2018
The aim of this study was to evaluate the effect of treatment using low doses of EPE on rates of ovulation and embryo recovery. Eight mares were used in this way: first cycle (n = 8) - control group (untreated); second cycle (n = 8) - treated group using
Marcus André Ferreira de Sá, Gabriel de Oliveira Santos, Luciana Lima Bezerra, Marcela Poerner Moreno, Celso Guimarães Barbosa, Marco Antônio Alvarenga, Júlio César Ferraz Jacob   +6 more
doaj   +1 more source

Timed artificial insemination protocols in dairy cattle: Functioning, shortcomings, and improvements

Czech Journal of Animal Science, 2023
Oestrus detection is currently at the top of the factors limiting the success of artificial insemination in dairy herds. This limitation becomes more pronounced as milk production increases because of higher metabolic clearance rates of steroid hormones ...
Amine Boudaoud
doaj   +1 more source

Paternal Circadian Disruption Impairs Offspring Cognition via Sperm microRNAs

Advanced Science, EarlyView.
Paternal circadian disruption remodels the sperm small RNA payload, elevating miR‐92a‐3p/miR‐25‐3p levels and perturbing early embryonic gene regulatory programs. Microinjection experiments and single‐embryo transcriptomics reveal sex‐specific developmental vulnerabilities, ultimately impairing offspring hippocampal synaptic plasticity and cognition ...
Kexin Zou, Sisi Luo, Binliang Tang, Zhiqiang Liu, Yuchuan Zhou, Yicong Meng, Zhengmu Wu, Zheng Sun, Weihui Shi, Jianzhong Sheng, Chuanjin Yu, Zhenhua Li, Siyi Wei, Mo Zhang, Yujie Luo, Jing Yan, Xueyun Qin, Jiahang Mo, Chengliang Zhou, Jinsong Li, Hefeng Huang, Yifu Ding, Guolian Ding   +22 more
wiley   +1 more source

Buserelin shortens the estrus-to-ovulation interval and improves the pregnancy outcomes in gilts treated with a fixed-time artificial insemination

Frontiers in Veterinary Science
Fixed-time artificial insemination (FTAI) is currently a standardized protocol for pig reproductive management. Efficient ovulation synchronization induced by GnRH analogs is critical for ensuring the pregnancy outcomes of FTAI. However, among the widely
Zhicheng Shi, Zhicheng Shi, Zhicheng Shi, Zhicheng Shi, Zhicheng Shi, Zongyu Wang, Zongyu Wang, Zongyu Wang, Zongyu Wang, Zongyu Wang, Lei An, Lei An, Lei An, Lei An, Lei An, Zhi Li, Linghua Cheng, Yuan Yue, Min Guo, Xiaodong Wang, Haiqing Liu, Li Ren, Jianhui Tian, Jianhui Tian, Jianhui Tian, Jianhui Tian, Jianhui Tian, Qin Li, Qin Li, Qin Li, Qin Li, Qin Li, Shumin Wang, Shumin Wang, Shumin Wang, Shumin Wang, Shumin Wang   +36 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

Influence of Intrauterine Fluid Detection, Number of Transfers and Age of the Recipient on Pregnancy Rate and Early Embryonic Loss in a Commercial Embryo Transfer Program

Animals, 2023
The selection of the recipient mare is one of the most important factors involved in the success of equine embryo transfer. The aim of this study was to determine whether the age of the recipient, the number of transfers and the detection of intrauterine
Gian Guido Donato, Denis Necchi, Hilde Vandaele, Micaela Elizabeth Vita, Alessia Bertero, Leila Vincenti, Tiziana Nervo   +6 more
doaj   +1 more source

The Landscape and Regulation of Histone Crotonylation in Mammalian Gametes and Early Embryos

Advanced Science, EarlyView.
Histone crotonylation undergoes a genome‐wide transition from broad domains to canonical narrow peaks during minor zygotic genome activation (ZGA). This remodeling is required for proper major ZGA and blastocyst formation. Disruption of this transition by transcriptional inhibition, metabolic perturbation, or HDAC1 dysfunction impairs embryonic ...
Shenli Yuan, Yelian Yan, Yalin Liang, Kanghua Zhong, Zhican Fu, Xiaobo Wang, Chao Liu, Tao Huang, Keliang Wu   +8 more
wiley   +1 more source

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

Fertility response following ablation-induced follicular wave emergence and ovulation induction in anestrous buffaloes

Indian Journal of Animal Sciences, 2022
The fertility response following induction of follicular wave emergence by follicle ablation combined withprogesterone based ovulation synchronization in postpartum anestrous buffaloes was assessed.
MRIGANK HONPARKHE, VINOD KUMAR GANDOTRA, PARKASH SINGH BRAR, ASLOOB AHMED MALIK, DINESH DADARWAL, JASWANT SINGH   +5 more
doaj   +1 more source