Results 41 to 50 of about 24,732 (236)

Functional sperm assessments of African Lion Panthera leo (Mammalia: Carnivora: Felidae) in field conditions

Journal of Threatened Taxa, 2019
Wild African Lion Panthera leo populations are decreasing due to inbreeding and reduced genetic variability.  Thus, the use of assisted reproduction in the species could one day become essential.
Thiesa Butterby Soler Barbosa, Daniel de Souza Ramos Angrimani, Bruno Rogério Rui, João Diego de Agostini Losano, Luana de Cássia Bicudo, Marcel Henrique Blank, Marcilio Nichi, Cristiane Schilbach Pizzutto   +7 more
doaj   +1 more source

Acid Glycohydrolases in Rat Spermatocytes, Spermatids and Spermatozoa: Enzyme Activities, Biosynthesis and Immunolocalization

Biological Procedures Online, 2001
Mammalian sperm acrosome contains several glycohydrolases thought to aid in the dispersion and digestion of vestments surrounding the egg. In this study, we have used multiple approaches to examine the origin of acrosome-associated glycohdyrdolases ...
Abou-Haila Aida, Tulsiani Daulat
doaj   +1 more source

SEQUENTIAL RELEASE OF ACROSOMAL MEMBRANES AND ACROSOMAL ENZYMES OF RAM SPERMATOZOA [PDF]

Reproduction, 1974
Summary. A method involving the treatment of ram spermatozoa with MgCl2 followed by Hyamine 2389 and Triton X-100 is described, which gave selective removal of the acrosomal membranes and acrosomal enzymes. The effect on the individual membranes of ram spermatozoa was evaluated by electron microscopy.
P N, Srivastava, J F, Munnell, C H, Yang, C W, Foley   +3 more
openaire   +2 more sources

Plasma membrane-Acrosome-Mitochondria

, 2019
Raw data of sperm plasma membrane, acrosome, mitochondria, and healthy sperm, and the results of statistical ...
Vui Nguyen (6833942)
core   +1 more source

Human globozoospermia‐related genes and their role in acrosome biogenesis

, 2023
The mammalian acrosome is a secretory vesicle attached to the sperm nucleus whose fusion with the overlying plasma membrane is required to achieve fertilization.
Moreno, Ricardo D., Ricardo D. Moreno
core   +1 more source

Review: Sperm–oocyte interactions and their implications for bull fertility, with emphasis on the ubiquitin–proteasome system

Animal, 2018
Fertilization is an intricate cascade of events that irreversibly alter the participating male and female gamete and ultimately lead to the union of paternal and maternal genomes in the zygote.
P. Sutovsky
doaj   +1 more source

Atypical structure of the nuclear membrane, distribution of nuclear pores and lamin B1 in spermatozoa of patients with complete and partial globozoospermia

Frontiers in Genetics
Globozoospermia is a form of male infertility characterized by spermatozoa with spherical heads lacking acrosomes. The aim of this study was to evaluate ultrastructural and molecular defects in different types of globozoospermia.
Elizaveta Bragina, Elizaveta Bragina, Svetlana Kurchashova, Marina Suhomlinova, Tatiana Gasanova, Svetlana Ermolaeva, Tatyana Sorokina, Eva Kirs, Evgeniy Arifulin, Olga Solovova, Oxana Ryzhkova, Sabina Khayat, Marina Andreeva, Vyacheslav Chernykh, Vyacheslav Chernykh   +14 more
doaj   +1 more source

Immunofluorescence detection of the acrosome.

, 2015
(a) Immunofluorescence detection of the acrosome with PNA (green) was performed to illustrate and quantify the sperm acrosome abnormalities. Hoechst was used to nuclei staining (blue); bar = 20μm.
Ling Chen (25698), Min Jiang (56794), Xiaoyan Huang (112885), Haoyu Zheng (788887), Zhengrong Xia (788888), Yibo Wu (788885), Ahong Zhong (788886), Jinjin Yu (788889)   +7 more
core   +1 more source

Sericin-Enriched Rabbit Semen Preservation: Implications for Short-Term Storage Quality and Fertility at 4 or 15 °C

Animals
The influence of sericin supplementation and chilling temperatures (4 and 15 °C) on the short-term storage quality and fertility of rabbit semen was assessed over 72 h of storage.
Sanan Raza, Uğur Uçan, Melih Aksoy, Güneş Erdoğan, Zahid Naseer, Komal Khan   +5 more
doaj   +1 more source

Distribution of p14 during sperm acrosome reaction.

, 2013
(A) Indirect immunofluorescence of anti-p14-labeled protein in acrosome reacted fixed caprine sperm permeabilized with paraformaldehyde. Left panel indicating the fluorescent and corresponding phase contrast photographs of sperm previously capacitated ...
Pinki Nandi (334552), Kuladip Jana (334554), Swatilekha Ghosh (334553), Parimal C. Sen (334555)   +3 more
core   +1 more source