Results 181 to 190 of about 754,638 (394)

Biogenesis and function of tRNA fragments during sperm maturation and fertilization in mammals

open access: yesScience, 2016
Upasna Sharma   +19 more
semanticscholar   +1 more source

Intraspecific variation of cochlear morphology in bowhead and beluga whales

open access: yesThe Anatomical Record, EarlyView.
Abstract The bony labyrinth of the petrosal bone, a distinctive feature of mammal skulls, is often identified in micro‐computed tomography imaging to infer species' physiological and ecological traits. When done as part of a comparative study, one individual specimen is normally considered representative of a species, and intraspecific variation is ...
John Peacock, J. G. M. Thewissen
wiley   +1 more source

Brave Sperm and Demure Eggs: Fallopian Gender Politics on YouTube [PDF]

open access: yes, 2015
A narrative analysis of videos of human conception from medical and nonmedical sources aired in the democratic space of YouTube finds that stereotypical gender roles are consistently assigned to cellular behavior.
Nettleton, Pamela Hill
core   +1 more source

Protein phosphatase 2A (PP2A) function in male germ cells and its importance for male fertility

open access: yesEndocrine Connections
Infertility is a common issue that affects approximately 30 million men worldwide, most often resulting from defects during spermatogenesis, a complex cellular differentiation process allowing the formation of spermatozoa. During spermatogenesis, a large
Violaine Simon
doaj   +1 more source

P-446 Sperm Donors’ Identity Disclosure: Is It REALLY Crucial? For Whom? [PDF]

open access: bronze, 2023
Maya Ronen   +7 more
openalex   +1 more source

A contribution to the anatomy of two rare cetacean species: The hourglass dolphin (Cephalorhynchus cruciger) and the spectacled porpoise (Phocoena dioptrica)

open access: yesThe Anatomical Record, EarlyView.
Abstract The anatomical description of the hourglass dolphin (Cephalorhynchus cruciger) and the spectacled porpoise (Phocoena dioptrica) remains largely unexplored, due to limited specimen availability and preservation challenges. This study employed digital imaging techniques, conventional histology, and computed tomography to provide visualization of
Jean‐Marie Graïc   +26 more
wiley   +1 more source

Sperm selection techniques and antioxidant fortification in low grade semen of bulls: Review [PDF]

open access: gold, 2013
T.K.S. Rao   +4 more
openalex   +1 more source

Ursolic Acid Alleviates Orchitis via Modulating Ferroptosis in Peritubular Myoid Cells of Testis

open access: yesAnimal Research and One Health, EarlyView.
Ursolic acid modulates key ferroptosis‐related pathways in the peritubular myoid cells of the testis in forest musk deer. ABSTRACT Chronic stress adversely affects reproductive health, increasing susceptibility to pathologies such as orchitis. Additionally, the maintenance of iron homeostasis is essential for preserving the function of the testicles ...
Yang Wang   +11 more
wiley   +1 more source

Three cases of sperm immobility for intracytoplasmic sperm injection using testicular sperm

open access: yesIJU Case Reports
IntroductionSperm immobility is a condition in which sperm are viable but not motile. We reported three patients with sperm immobility, who underwent testicular sperm extraction‐intracytoplasmic sperm injection.Case presentationIn case 1, a 32‐year‐old patient with sperm immobility had previously undergone intracytoplasmic sperm injection with ...
Noboru Mimura   +5 more
openaire   +3 more sources

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