Results 171 to 180 of about 100,022 (216)

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

Optimizing family building in women of advanced reproductive age: a Faster-Fewer-and-Finished approach. [PDF]

Front Endocrinol (Lausanne)
Sunkara SK, Venetis C, D'Hooghe T, Duncan FE, Hunter T, Montenegro S, Broekmans F.   +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

The Fibro-Inflammatory Ovary: Stromal Fibrosis, Extracellular Matrix Remodeling, and Mechanotransduction in Female Infertility. [PDF]

Curr Issues Mol Biol
Voros C, Chatzinikolaou F, Papadimas G, Stavros S, Papapanagiotou I, Zagorianakou N, Gunes AC, Karpouzos A, Bananis K, Tsimpoukelis C, Daskalaki MA, Makrydimas S, Thomakos N, Antsaklis P, Loutradis D, Daskalakis G.   +15 more
europepmc   +1 more source

The Gα GOA-1/GNAO1 non-autonomously promotes germline stem cell quiescence in feminized <i>C. elegans</i> hermaphrodites from the gonadal sheath cells. [PDF]

MicroPubl Biol
Chaudhari AM, Nguyen MT, Narbonne P.
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

BMAL1-Mediated Circadian Regulation of Oocyte Quality and IVF Outcomes. [PDF]

Genes (Basel)
Voros C, Zagorianakou N, Makrydimas S, Chatzinikolaou F, Papadimas G, Koulakmanidis AM, Thomakos N, Antsaklis P, Daskalakis G, Makrydimas G.   +9 more
europepmc   +1 more source

A CCNA1 Missense Variant Associated With Chromatid Non‐Disjunction in Abnormal‐Headed Sperm and Male Infertility

Andrology, EarlyView.
ABSTRACT Background Macrozoospermia is a rare form of teratozoospermia characterized by tetraploids, large‐headed spermatozoa with multiple flagella, usually caused by bi‐allelic AURKC mutations. The etiology of atypical phenotypes with a lower proportion of large headed spermatozoa and single flagella however often remains unresolved.
Aurore Perrin, Frédéric Morel, Zeina Wehbe, Cynthia Frapsauce, Nadia Gueganic, Corinne Tous, Séverine Commet, Laura Dijols, Audrey Basinko, Nathalie Douet‐Guilbert, Célia Tebbakh, Zine‐Eddine Kherraf, Pierre F. Ray, Charles Coutton, Guillaume Martinez   +14 more
wiley   +1 more source

In vivo labeling-based proteomic analysis of early follicle oocytes and cisplatin-induced alterations in mice. [PDF]

Nat Commun
Jiang ZY, Bi M, Wu X, Ban M, Lu Y, Cao J, Li J, Wang Q, Zhu X, Li M, Fan HY, Xie B.   +11 more
europepmc   +1 more source

The Embryonic Development of the Cotylean Polyclad Phrikoceros jannetae

Acta Zoologica, EarlyView.
ABSTRACT Polyclads exhibit distinct developmental modes ranging from direct to indirect development, with several transitional stages also recognised. The existence of an indirect developmental mode in polyclads with a planktonic life history stage in the form of a free‐swimming larva is unique among all free‐living flatworms and makes polyclads a ...
Mehrez Gammoudi, Bernhard Egger, Isabel L. Dittmann, Verónica N. Bulnes, Pavel Tomancak, Abdel Halim Harrath, Johannes Girstmair   +6 more
wiley   +1 more source