Results 71 to 80 of about 51,909 (235)

Sex chromosome aneuploidies and fertility: 47,XXY, 47,XYY, 47,XXX and 45,X/47,XXX

open access: yesEndocrine Connections, 2023
The overall incidence of sex chromosome aneuploidies is approximately 1 per 500 live-born infants, but far more common at conception. I shall review the fertility aspects of the sex chromosome trisomies, XXY, XYY, and XXX, with special reference to the ...
Alan D Rogol
doaj   +1 more source

Sperm glyceraldehyde 3-phosphate dehydrogenase gene expression in asthenozoospermic spermatozoa [PDF]

open access: yes, 2017
It has been suggested that the energy required for sperm motility is produced by oxidative phosphorylation while glycolysis seems to be an important source for ATP transmission along the flagellum.
Coltrinari, Giulia   +6 more
core   +1 more source

N4‐acetylcytidine in LncRNA Gm26917 Promotes Translation in Female Germline Stem Cells by Recruiting Ribosomal Protein mRNA via EEF1A1

open access: yesAdvanced Science, EarlyView.
This work establishes that ac4C modification on lncRNA Gm26917 governs its spatial interactions with Rpl10 mRNA, and RBP EEF1A1 mediates the interaction between Gm26917 and Rpl10. It elucidates a novel ac4C‐Gm26917‐EEF1A1‐Rpl10 axis in FGSC maintenance both in vitro and in vivo, and provides a potential molecular target for modulating germ cell ...
Xinyue Li, Xiaopeng Hu, Ji Wu
wiley   +1 more source

Human immature testicular tissue organ culture: a step towards fertility preservation and restoration

open access: yesFrontiers in Endocrinology, 2023
BackgroundCryopreservation of immature testicular tissue (ITT) is currently the only option to preserve fertility of prepubertal patients. Autologous transplantation of ITT may not be safe or appropriate for all patients. Therefore, methods to mature ITT
Nagham Younis   +5 more
doaj   +1 more source

Impact of L-carnitine and selenium treatment on testicular apoptosis in rats exposed to 2.45 GHz microwave energy [PDF]

open access: yes, 2015
Objective: It has been suggested that electromagnetic radiation (EMR) by wireless devices (2.45 GHz) induces testicular apoptosis. We investigated if supplemental selenium (Se) and L-carnitine may reduce this adverse effect.
Comlekci, S.   +5 more
core   +1 more source

PSMA8‐Containing 20S Proteasome Regulates Spermiogenesis and Male Fertility

open access: yesAdvanced Science, EarlyView.
PSMA8 assembles s20S proteasome that degrades specific substrates in elongating spermatids. Degradation of s20S‐substrates activates translation of FXR1‐target mRNAs, which are essential for mitochondrial sheath formation and sperm morphogenesis.
Huiwen Cao   +7 more
wiley   +1 more source

A Novel Cultivation System for Germ Cell Proliferation and Sustaining Whole Testicular Niche

open access: yesAdvanced Science
Childhood cancer treatments often impair male fertility due to gonadotoxic effects. While in vitro culture of prepubertal testis tissue offers a potential solution to preserve fertility, producing sufficient sperm remains a major barrier. To address this,
Yu Xia   +14 more
doaj   +1 more source

Microfluidic and Static Organotypic Culture Systems to Support Ex Vivo Spermatogenesis From Prepubertal Porcine Testicular Tissue: A Comparative Study

open access: yesFrontiers in Physiology, 2022
Background:In vitro maturation of immature testicular tissue (ITT) cryopreserved for fertility preservation is a promising fertility restoration strategy. Organotypic tissue culture proved successful in mice, leading to live births.
Marc Kanbar   +11 more
doaj   +1 more source

Reproductive traits in Ethiopian male goats [PDF]

open access: yes, 2007
This thesis characterizes reproductive traits of Ethiopian male goats raised under extensive husbandry and subjected to differential nutritional management.
Mekasha Gebre, Yoseph
core  

Exceptional sperm cooperation in the wood mouse [PDF]

open access: yes, 2002
Spermatozoa from a single male will compete for fertilization of ova with spermatozoa from another male when present in the female reproductive tract at the same time.
AH Harcourt   +32 more
core   +1 more source

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