Results 11 to 20 of about 10,843 (205)
Protocol for isolation of spermatids from mouse testes
STAR Protocols, 2021 Summary: Post-meiotic spermatids become spermatozoa through developmental stages during spermiogenesis. Isolation of spermatid fractions is required to examine the change of protein expression during spermiogenesis.
Chang Rok Kim +4 more
doaj +1 more source
Middle East Fertility Society Journal, 2013 Objective: To correlate late spermatid score and sperm count in men with normal semen analysis and oligozoospermia undergoing intracytoplasmic sperm injection (ICSI) to set the average threshold of spermatids/tubule of testicular tissue needed for normal
Ibrahim Fahmy +3 more
doaj +1 more source
“Breaking news” from spermatids [PDF]
Basic and Clinical Andrology, 2013 Abstract During the haploid phase of spermatogenesis, spermatids undergo a complex remodeling of the paternal genome involving the finely orchestrated replacement of histones by the highly-basic protamines. The associated striking change in DNA topology is characterized by a transient surge of both single- and double-stranded DNA breaks in ...
Gouraud, Anne +6 more
openaire +2 more sources
Biobanking efforts and new advances in male fertility preservation for rare and endangered species
Asian Journal of Andrology, 2015 Understanding and sustaining biodiversity is a multi-disciplinary science that benefits highly from the creation of organized and accessible collections of biomaterials (Genome Resource Banks).
Pierre Comizzoli
doaj +1 more source
Are spermatid injections of any clinical value? ROSNI and ROSI revisited. Round spermatid nucleus injection and round spermatid injection [PDF]
Human Reproduction, 1998 Tiny numbers of spermatozoa can be extracted from an extensive testis biopsy and be used successfully for intracytoplasmic sperm injection (ICSI) in ∼60% of cases of non-obstructive azoospermia caused by testicular failure (e.g. maturation arrest, Sertoli cell only, cryptorchid atrophy, post-chemotherapy, or even Klinefelter's syndrome).
S J, Silber, L, Johnson
openaire +2 more sources
Tubulobulbar complex: Cytoskeletal remodeling to release spermatozoa
Reproductive Biology and Endocrinology, 2012 Tubulobulbar complexes (TBCs) are actin-based structures that help establish close contact between Sertoli–Sertoli cells or Sertoli–mature germ cells (spermatids) in the seminiferous tubules of the testes.
Upadhyay Rahul D +3 more
doaj +1 more source
Ezrin: a regulator of actin microfilaments in cell junctions of the rat testis
Asian Journal of Andrology, 2015 Ezrin, radixin, moesin and merlin (ERM) proteins are highly homologous actin-binding proteins that share extensive sequence similarity with each other.
N Ece Gungor-Ordueri +2 more
doaj +1 more source
Asian Journal of Andrology, 2015 Importin proteins were originally characterized for their central role in protein transport through the nuclear pores, the only intracellular entry to the nucleus.
Kate L. Loveland +5 more
doaj +1 more source
Are sperm capacitation and apoptosis the opposite ends of a continuum driven by oxidative stress?
Asian Journal of Andrology, 2015 This chapter explores the possibility that capacitation and apoptosis are linked processes joined by their common dependence on the continued generation of reactive oxygen species (ROS).
Robert J Aitken +2 more
doaj +1 more source
MICROTUBULES IN THE SPERMATIDS OF THE DOMESTIC FOWL [PDF]
The Journal of Cell Biology, 1967 Spermiogenesis in chicken has been examined in order to see whether the radical changes observed in cell shape can be related to the presence of cytoplasmic microtubules. A highly ordered array of tubules has been found which surrounds the nucleus as it elongates from a sphere to a slender cylinder.
J R, McIntosh, K R, Porter
openaire +2 more sources