Results 221 to 230 of about 176,418 (306)

Ecologically relevant low oxygen levels reduce unfertilized oocyte output in <i>Caenorhabditis elegans</i>. [PDF]

MicroPubl Biol
Haxen ER, Islam M, Grabowski A, Mohlin S, Posth NR, Gopal S, Hammarlund EU.   +6 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

The estradiol-to-periovulatory follicle ratio (E2/N16) as a marker of follicular endocrine efficiency and embryological outcomes in ART cycles. [PDF]

Front Endocrinol (Lausanne)
Brigante CMM, Caliari I, Iemmello R, Gippone S, Guglielmi D, Dal Canto B, Mignini Renzini MR.   +6 more
europepmc   +1 more source

Children Born Using Ejaculated Sperm From Men With Klinefelter Syndrome. Is Sperm Production Associated With Testicular Volume?

Andrology, EarlyView.
ABSTRACT Background A large number of children have been born using testicular sperm from men with Klinefelter syndrome (KS), whereas reports of children conceived using ejaculated sperm are rare. Objective To review all published cases of children conceived using ejaculated sperm from men with KS, assess their health and karyotype, and evaluate ...
Jens Fedder, Freja Sørensen
wiley   +1 more source

m6A RNA methylation in mammalian oocytes and preimplantation embryos: implications for developmental competence. [PDF]

Front Vet Sci
Cosseddu C, Succu S, Mossa F, Frau A, Palmerini MG, Ledda S, Bebbere D.   +6 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

Efficacy of Human Amniotic Membrane Stem Cell-Conditioned Medium on Improving In Vitro Maturation Efficiency of Mouse Oocytes. [PDF]

Cells
Ra K, Kim EY, Kang SK, Kim GA, Ra JC.
europepmc   +1 more source

Blunted Lsm14b activation disrupts maternal mRNA remodeling during the GV-to-MII transition in a mouse model of polycystic ovary syndrome. [PDF]

Front Cell Dev Biol
Du W, Shi J, Chen J, Zhang M, Jiang X, Wang R, Tan Y.   +6 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

ELAVL1 and ELAVL4 Are Required for Musashi-Dependent Translational Activation. [PDF]

Biomolecules
Bronson K, Reddick MM, Macnicol KB, Bolen C, Hardy L, Lagasse A, Odle AK, Childs GV, MacNicol MC, MacNicol AM.   +9 more
europepmc   +1 more source