Results 131 to 140 of about 114,907,480 (246)

In vitro oocyte maturation in Canids: biological and technical pitfalls

, 2000
The efficiency of oocyte in vitro maturation in Canids is characterized by a low and greatly variable success. The reason may lie in a very peculiar morphological and functional characteristic of Canid oocyte folliculogenesis and maturation.
G.C. Luvoni
core   +2 more sources

NR4A1‐Driven Granulosa Cell Ferroptosis Contributes to Obesity‐Related Ovarian Dysfunction and Metformin‐Mediated Ovarian Protection

The FASEB Journal, Volume 40, Issue 19, 15 October 2026.
Schematic illustrating that NR4A1‐driven granulosa cell ferroptosis mediates obesity‐related ovarian dysfunction, while metformin‐mediated ovarian protection is achieved via suppression of the PI3K/AKT–NR4A1 ferroptotic signaling cascade. ABSTRACT Obesity triggers ovarian dysfunction and female infertility accompanied by granulosa cell damage ...
Huihui Wang, Chaoying Wang, Shuaishuai Guo, Guang Yang, Junnan Fang, Jingyi Hu, Ran Jiang, Jun Zhai, Haixia Jin, Wenyan Song, Senlin Shi, Xianju Huang, Lin Qi, Zhaoting Wu, Yan Liu, Ning Song, Xiangyang Zhang, Guidong Yao   +17 more
wiley   +1 more source

Safe and Stable Germline Transmission of MSTN Mutations in Cattle

Animal Genetics, Volume 57, Issue 5, October 2026.
ABSTRACT With the global population expected to reach 10 billion by 2050, sustainable livestock production is critical. Gene editing of the myostatin (MSTN) gene represents a promising strategy to enhance muscle growth in cattle. In this study, MSTN‐mutated founder (F0) cows were used to generate F1 offspring via ovum pick‐up, in vitro fertilization ...
Gyeong‐Min Gim, Bae Young Choi, Jeongbin Yi, Kyeong‐Hyeon Eom, Soo‐Young Yum, Dae‐Jin Jung, Do‐Yoon Kim, Bokyoung Yang, Jong‐Seo Kim, Donghwan Shim, Goo Jang   +10 more
wiley   +1 more source

Seminal Plasma Exosomal miRNA Profiling Reveals hsa‐miR‐7‐5p as a Key Regulator of Sperm Motility in Asthenozoospermia

Andrology, Volume 14, Issue 7, Page 2166-2179, October 2026.
ABSTRACT Background Asthenozoospermia is a significant contributing factor to male infertility. Accumulating evidence indicates that impaired sperm motility is closely linked to dysregulated microRNA expression during spermatogenesis. Seminal plasma exosomes are enriched with diverse microRNAs, which play pivotal roles in modulating sperm motility, the
Zhi‐Jian Zhu, Meng‐Li Cui, Wen‐Jing Yuan, Jia‐Ning Zhang, Shuo Zhang, Xi‐Qiao Yao, Ruo‐Qing Li, Jin‐Feng Li, En‐Zhong Li   +8 more
wiley   +1 more source

Effects of melatonin on in vitro oocyte maturation and embryo development in pigs [PDF]

Background and Aim: In vitro fertilization (IVF) efficiency in pigs remains suboptimal, partly due to oxidative stress during oocyte maturation and embryo development.
Alma Lilia Alvarez-Guerrero, Alfredo Medrano, Alicia Alcantar-Rodriguez, Laura Andrea Blancas-Alvarez   +3 more
core   +2 more sources

Impact of Sorting and Catch Media on Porcine Sperm Motility, Capacitation, and Viability

Andrology, Volume 14, Issue 7, Page 2207-2220, October 2026.
ABSTRACT Background Fluorescence‐activated cell sorting (FACS) has emerged as a powerful tool for selecting spermatozoa of a desired population of fluorescent biomarkers, offering potential applications in reproductive biology and agriculture. However, concerns remain regarding sorting‐induced physiological alterations that could compromise spermatozoa
Tyler Weide, Juan Steibel, Karl Kerns
wiley   +1 more source

Avaliação da aplicabilidade da técnica de maturação in vitro de oócitos humanos e posterior fertilização Evaluation of the usefulness of the in vitro maturation technique of human oocyte and subsequent fertilization

Revista Brasileira de Ginecologia e Obstetrícia, 2003
OBJETIVO: avaliar a aplicabilidade da técnica de maturação in vitro de oócitos humanos e posterior fertilização. MÉTODOS: estudo prospectivo não randomizado descritivo realizado no período de novembro de 1999 a março de 2001 no qual foram incluídas 15 pacientes com infertilidade tubária e 20 ciclos de fertilização in vitro.
Maria Clara Magalhães dos Santos Amaral, Maria das Graças Rocha Santana Camargos, Marco Aurélio Fernandes Vieira, Rubens Lene Carvalho Tavares, Claudia Navarro Carvalho Duarte Lemos, Aroldo Fernando Camargos   +5 more
openaire   +1 more source

Peroxiredoxin 4 Involved in Spermatogenesis by Affecting Oxidative Stress and Ferroptosis

Andrology, Volume 14, Issue 7, Page 2329-2346, October 2026.
ABSTRACT Background The main functions of testes are sperm production and androgen secretion in testicular befitting microenvironment. Excessive level of the reactive oxygen species (ROS) from metabolism and cellular events can lead to oxidative stress (OS) and ferroptosis, which injure the functions of mitochondria and endoplasmic reticulum (ER) of ...
Shuning Yuan, Nini Wei, Weiwei Ma, Mengting Hu, Bei Zhang, Li Gao, Chao Gao, Xiaoyu Yang, Yan Meng, Jiayin Liu, Yugui Cui   +10 more
wiley   +1 more source

Successful pregnancies following an egg donation program in women with previously treated Hodgkin's disease

Haematologica, 2001
BACKGROUND AND OBJECTIVES: In order to draw attention not only to patients affected by a neoplasia, but also to those who may have problems of sterility, we describe six women affected by Hodgkin's disease who had precocious menopause due to chemotherapy
AP Anselmo, E Cavalieri, C Aragona, M Sbracia, D Funaro, R Maurizi Enrici   +5 more
doaj  

Mesenchymal stem cells promote ovarian reconstruction in mice

Stem Cell Research & Therapy
Background Studies have shown that chemotherapy and radiotherapy can cause premature ovarian failure and loss of fertility in female cancer patients. Ovarian cortex cryopreservation is a good choice to preserve female fertility before cancer treatment ...
Jiazhao Li, Haonan Fan, Wei Liu, Jing Zhang, Yue Xiao, Yue Peng, Weijie Yang, Wenwen Liu, Yuanlin He, Lianju Qin, Xiang Ma, Jing Li   +11 more
doaj   +1 more source