Results 181 to 190 of about 316,539 (293)

An Overview of How Epigenetics, MicroRNA-21, and Endocrine Disrupting Compounds Affect Oocyte Maturation and Pre-Implantation Embryo Development. [PDF]

J Dev Biol
Nasser M, Sabry R, Favetta LA.
europepmc   +1 more source

Sperm Mitochondrial DNA Copy Number and Nuclear DNA Methylation Across Clinical and Non‐Clinical Preconception Cohorts

Andrology, EarlyView.
ABSTRACT Background Sperm mitochondrial DNA copy number is an emerging marker of male fertility, with elevated mtDNAcn associated with poor semen quality across various populations. Sperm DNA methylation has also been previously demonstrated to be negatively correlated with semen parameters in IVF cohorts.
Savni Sawant, Karolina Nowak, Amanda L. Paskavitz, Emily Houle, Ricardo P. Bertolla, Lidia Minguez‐Alarcon, Russ Hauser, J. Richard Pilsner   +7 more
wiley   +1 more source

Mitophagy suggesting a possible association with oocyte maturation: A study of granulosa cells from follicular fluid of normoresponder and diminished ovarian reserve cases. [PDF]

Sci Prog
Öner Ç, Kolcuoğlu D, Kiliç NÖ, Dumanli D, Çelik AC, Kaya A, Bakirci B, Köstü S, Şimşek EB, Selam B, Çolak E.   +10 more
europepmc   +1 more source

Sperm Selection Using Micro Swim‐Up: Improvement of Chromatin Integrity Compared to Density Gradient Centrifugation

Andrology, EarlyView.
ABSTRACT Background Selecting high‐quality spermatozoa with optimal nuclear integrity is a crucial step in assisted reproductive technologies (ART). While density gradient centrifugation (DGC) is widely used, the associated centrifugation steps may induce cell stress, potentially damaging sperm DNA.
Simone Palini, Serena Benedetti, Silvia De Stefani, Luca Galluzzi, Mariangela Primiterra, Sara Rita D'Errico, Michele Tanturli, Monica Muratori   +7 more
wiley   +1 more source

AQP7 Protects Vitrified Sheep GV-Stage Oocyte Maturation via Mitochondrial Activity. [PDF]

Animals (Basel)
Qi Y, Xia W, Tao C, Fang X, Yu Y, Qin T, Du D, Yang J, Zhao S, Song L, Zhao J, Li J.   +11 more
europepmc   +1 more source

ZAN, IZUMO1, and TMEM95 Protein Domains Identify the Physiological Status of the Sperm

Andrology, EarlyView.
ABSTRACT Background Infertility is a growing concern, which has led to an increase in the use of assisted reproductive techniques, involving in vitro sperm capacitation. Nonetheless, the optimal capacitation time remains a matter of debate, and it is unknown whether it has an impact on the localization of key membrane proteins.
Miranda Hernández‐Falcó, Paula Sáez‐Espinosa, Alejandro Romero, Andrea López‐Botella, Laura Robles‐Gómez, María José Gómez‐Torres   +5 more
wiley   +1 more source

Oocyte maturation triggering in high responders in IVF treatment: a systematic review and network meta-analysis. [PDF]

Front Endocrinol (Lausanne)
Beebeejaun Y, Copeland T, Duffy JMN, Sarris I, Showell M, Sunkara SK.   +5 more
europepmc   +1 more source

Male Mice Heterozygous for Protamine 1 and Protamine 2 Are Infertile, Displaying Sperm Damage and Retention of Protamine 2 Precursors, Transition Proteins, and Histones

Andrology, EarlyView.
ABSTRACT Background During spermiogenesis, protamines (PRMs) replace histones to hypercondense and protect sperm DNA. Rodents and primates express two PRMs (PRM1 and PRM2). Alterations of species‐specific PRM ratios are associated with sub‐ or infertility in mice and humans.
Gina Esther Merges, Christoph Wiesejahn, Mar Domingo‐Lopez, Simon Schneider, Andjela Kovacevic, Lena Arévalo, Hubert Schorle   +6 more
wiley   +1 more source

Effects of Liposome-Encapsulated α-Pinene on In Vitro Oocyte Maturation and Embryo Development in Bovine Species. [PDF]

Mol Reprod Dev
Azevedo VAN, Almeida MA, Chaves MA, Souza LA, Crisóstomo LCCF, Donato MAM, Peixoto CA, Eloy JO, Meirelles FV, Perecin F, Silveira JCD, Silva JRV.   +11 more
europepmc   +1 more source

Lactate‐Responsive Glycogen Dynamics Are Associated With Bull Sperm Motility and Fertilization Under Glucose‐Limited Conditions

Andrology, EarlyView.
ABSTRACT Background Mammalian sperm need to undergo hyperactivation, capacitation, and acrosome reaction to achieve fertilization competence. However, the female reproductive tract presents contrasting metabolic environments. The uterus is glucose‐rich, and the oviduct is lactate‐rich and glucose‐limited.
Md Faizul Hossain Miraz, Takahiro Yamanaka, Takashi Umehara, Shahrina Akter, Wambugu Enoc Njoroge, Masayuki Shimada   +5 more
wiley   +1 more source