Results 241 to 250 of about 15,361,986 (325)

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

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

Gut microbiota and metabolic dysregulation in polycystic ovary syndrome: effects of acupuncture as an adjunct to <i>in vitro</i> fertilization on gut dysbiosis, metabolism, and oocyte quality. [PDF]

Front Microbiol
Liu JJ, Yang H, Xiao ZY, Xie JH, Su L, Li YT, Zheng XY, Hu WH, Fu SJ, Li CL, Huang L, Yu SY, Yu Z, Yang S, Yang J.   +14 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

Human amniotic mesenchymal stem cell-derived extracellular vesicles improve oocyte quality and embryonic development by increasing antioxidant capacity in aged mice. [PDF]

J Ovarian Res
La B, Jiang C, He J, Ni M, Zhou J, Wu H, Ning S, Dai W, Yan Z, Cui Y, Qin L, Liu J.   +11 more
europepmc   +1 more source

Sodium Butyrate Promotes In Vitro Development of Mouse Preantral Follicles and Improves Oocyte Quality by Regulating Steroidogenesis, Oxidative Stress, and Cytoskeleton Remodeling. [PDF]

Animals (Basel)
Liu X, Virk TL, Pi M, Liu Q, Yang S, Ma Z, Yuan Y, Chen F.   +7 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

A Transcriptomics Approach to Unveil the Antioxidant Effects of Tryptophan on Oocyte Quality Under Oxidative Stress in Pigs. [PDF]

Biomolecules
Zhu Z, Li Y, Fan X, Cai S, Li S, Wang Y, Wang X, Yang F.   +7 more
europepmc   +1 more source

Neuronal and ion channel mechanisms of noxious heat sensing in mammals: A puzzle of sensory physiology and pharmacology

British Journal of Pharmacology, EarlyView.
Transient receptor potential vanilloid 1 (TRPV1) was the first noxious heat‐sensitive channel discovered. In rodents, its role is robust in the heat response of the cell body of polymodal nociceptors, but surprisingly small in that of the peripheral terminals in the skin.
Gábor Pethő, Peter W. Reeh
wiley   +1 more source

Ferroptosis in the Ovarian Follicular Microenvironment: A Redox-Dependent Cell Death Pathway with Emerging Roles in PCOS, Oocyte Quality, and IVF Outcomes. [PDF]

Int J Mol Sci
Voros C, Chatzinikolaou F, Papadimas G, Polykalas S, Mavrogianni D, Koulakmanidis AM, Athanasiou D, Kanaka V, Kanaka M, Bananis K, Athanasiou A, Athanasiou A, Papapanagiotou IK, Vaitsis D, Tsimpoukelis C, Daskalaki MA, Theodora M, Thomakos N, Antsaklis P, Loutradis D, Daskalakis G.   +20 more
europepmc   +1 more source