Results 51 to 60 of about 3,612 (170)

Comprehensive Quantification of Oligoasthenozoospermia Induced by Obesity, Reproductive Toxicants, and Their Combination in Rat Models

open access: yesAndrology, Volume 14, Issue 6, Page 1535-1551, September 2026.
ABSTRACT Background Oligoasthenozoospermia is a leading cause of male infertility and has been increasingly associated with the global surge in obesity and exposure to reproductive toxicants. Despite extensive research on each factor individually, their combined pathological effects remain poorly understood.
Yunlong Yao   +12 more
wiley   +1 more source

Association between methylenetetrahydrofolate reductase C677T polymorphisms and male oligozoospermia, asthenozoospermia or oligoasthenozoospermia: a case–control study

open access: yesScientific Reports
Mutation of methylenetetrahydrofolate reductase (MTHFR) C677T leads to the decrease of folate utilization and the impairment of spermatogenesis. This study attempts to investigate the association between MTHFR C677T polymorphisms and nonobstructive ...
Fu-jia Ren   +2 more
doaj   +1 more source

Intake of ultra-processed foods and asthenozoospermia odds: A hospital-based case-control study

open access: yesFrontiers in Nutrition, 2022
BackgroundThe intake of ultra-processed foods (UPFs) has increased rapidly in recent years. Evidence has suggested that UPFs has adverse effects on several health outcomes. This study aimed to first evaluate the association between the intake of UPFs and
Jia-Le Lv   +17 more
doaj   +1 more source

Testis‐Enriched F‐Box Protein FBXO39 Is Important for Spermiogenesis and Male Fertility in Mice

open access: yesAndrology, Volume 14, Issue 6, Page 1636-1646, September 2026.
ABSTRACT Background The SCF (Skp–Cullin–F‐box) complex is a major class of E3 ubiquitin ligases. F‐box proteins constitute the SCF complex and play a critical role in recognizing substrates for ubiquitination. In mice, several F‐box proteins, including FBXO36 and FBXO39, are predominantly expressed in testes.
Yuki Kaneda   +2 more
wiley   +1 more source

Semen Quality in Transgender Individuals Seeking Fertility Preservation

open access: yesAndrology, Volume 14, Issue 6, Page 1771-1776, September 2026.
ABSTRACT Background Transgender individuals assigned male at birth (AMAB) may choose to preserve their fertility prior to starting gender‐affirming hormone therapy (GAHT). However, limited data exist regarding the baseline reproductive and hormonal characteristics of this population before and after GAHT.
Maurizio De Rocco Ponce   +43 more
wiley   +1 more source

Serine Ameliorates Cadmium‐Induced Testicular Injury by Regulating the PGAM1/PHGDH Signaling Pathway

open access: yesJournal of Biochemical and Molecular Toxicology, Volume 40, Issue 8, August 2026.
Serine mitigates cadmium‐induced testicular injury in mice by inhibiting the PGAM1/PHGDH pathway, restoring ion homeostasis and glycolysis, and relieving oxidative stress, inflammation, fibrosis, and apoptosis. ABSTRACT Cadmium (Cd) is a widespread environmental contaminant that impairs male reproductive function; however, the metabolic mechanisms ...
Xueru Wang   +8 more
wiley   +1 more source

Absence of annulus in human asthenozoospermia: Case Report† [PDF]

open access: yesHuman Reproduction, 2009
The annulus is a septin-based ring structure located at the junction of the midpiece (MP) and the principal piece (PP) of spermatozoa flagellum. In the mouse, deletion of Septin 4, a structural component of the sperm annulus, prevents annulus formation and leads to MP-PP disjunction, flagellar bending, asthenozoospermia and male sterility. Testis anion
P, Lhuillier   +8 more
openaire   +2 more sources

Elevated LncRNA LINC00966 Suppresses PDE2A to Impair Sperm Motility in Asthenozoospermia

open access: yesFASEB BioAdvances, Volume 8, Issue 8, August 2026.
This study identifies LINC00966 as an upregulated lncRNA in asthenozoospermia associated with reduced sperm quality. Linc00966 suppresses Pde2a, disrupts cGMP signaling, and promotes oxidative stress, thereby impairing spermatogenic cell viability and migration.
Bingrou Guo   +14 more
wiley   +1 more source

Varicocelectomy Restores Spermatogenesis in Fontan‐Associated Varicocele: A Two‐Case Series

open access: yesIJU Case Reports, Volume 9, Issue 4, July 2026.
ABSTRACT Introduction Fontan circulation may cause chronic venous hypertension and predispose patients to varicocele and infertility, but the clinical significance of surgical treatment remains unclear. Case Presentation We describe two patients with Fontan circulation who developed Fontan‐associated varicocele (FAVC).
Yusuke Tominaga   +9 more
wiley   +1 more source

Semen Cryopreservation in Testicular Cancer: Before or After Orchidectomy?

open access: yesAndrology, Volume 14, Issue 5, Page 1272-1281, July 2026.
ABSTRACT Background Fertility preservation in patients with testicular cancer remains a clinical priority, yet the optimal timing for sperm cryopreservation—before or after orchidectomy—remains a matter of debate. Objectives The aim of this study was to determine the optimal timing for semen cryopreservation and the best‐quality sample for ART.
Alessandra Buonacquisto   +12 more
wiley   +1 more source

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