Results 61 to 70 of about 4,947,310 (176)
ABSTRACT Introduction Direct experimental investigation of Klinefelter syndrome (KS) in patients is limited because the syndrome manifests heterogeneously and affects multiple organ systems. Studying KS therefore requires a model that captures this complexity as accurately as possible while still permitting controlled experimental manipulation ...
Fariba Saadati, Joachim Wistuba
wiley +1 more source
Ontological Differences in First Compared to Third Trimester Human Fetal Placental Chorionic Stem Cells [PDF]
Human mesenchymal stromal/stem cells (MSC) isolated from fetal tissues hold promise for use in tissue engineering applications and cell-based therapies, but their collection is restricted ethically and technically.
Vanleene, Maximilien +55 more
core +1 more source
The Neonatal and Adult Human Testis Defined at the Single-Cell Level
Summary: Spermatogenesis has been intensely studied in rodents but remains poorly understood in humans. Here, we used single-cell RNA sequencing to analyze human testes.
Abhishek Sohni +10 more
doaj +1 more source
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 +7 more
wiley +1 more source
The Impact of Common Medications on Male Fertility: An Updated Systematic Review
ABSTRACT Background Compared with those of cytotoxic treatments, the potential effects of common medications on the fertility of men trying to conceive currently or planning to conceive in the future are less well described. The use of common medications may modify the gonadotropic axis, spermatogenesis, and epididymal maturation or alter male ...
Lina Jebli +7 more
wiley +1 more source
A Noncanonical Protein Degradation Pathway That Regulates Germ Cell Maintenance
SENP8 regulates a non‐canonical NEDD8‐dependent pathway to stabilize STAT1, promote CCL2/CCL5 transcription, and maintain germ cell proliferation and migration.
Meng Liu +11 more
wiley +1 more source
FTO regulates mRNA stability and translational efficiency through its m6A‐demethylation activity. GSK3 functions as an upstream regulator of FTO, leading to its inhibition via phosphorylation. In male germ cells, FTO activity is kept in check by GSK3α.
Neha Choudhari +7 more
wiley +1 more source
Understanding extracellular vesicles in antiaging
Abstract Background Aging is a multifactorial process marked by gradual cellular dysregulation, regulated by hallmarks, including genomic instability, mitochondrial dysregulation, and chronic inflammation. Extracellular vesicles (EVs), especially exosomes, have emerged as pivotal mediators of cell‐to‐cell communication with potential roles in both ...
Paras Ahmad +3 more
wiley +1 more source
Summary: Spermatogenesis requires retinoic acid (RA) induction of the undifferentiated to differentiating transition in transit amplifying (TA) progenitor spermatogonia, whereas continuity of the spermatogenic lineage relies on the RA response being ...
Tessa Lord +2 more
doaj +1 more source
Glutamine Metabolism in Health and Diseases
Glutamine metabolism acts as a metabolic hub connecting cellular stress adaptation, immune regulation, and disease development. Through regulating energy production, biosynthesis, redox balance, and nitrogen metabolism, glutamine supports cellular homeostasis under physiological and pathological conditions.
Yi Ding +3 more
wiley +1 more source

