Results 131 to 140 of about 31,775 (244)
Ultrastructure of the reproductive system of the black swamp snake (\u3ci\u3eSeminatrix pygaea\u3c/i\u3e). Part III. The sexual segment of the male kidney. [PDF]
In mature male snakes and lizards, a distal portion of the nephron is hypertrophied in relation to its appearance in females and immature males. This sexual segment of the male kidney apparently provides seminal fluid that is mixed with sperm and ...
Sever, David M.
core +1 more source
Spermiogenesis and spermatozoa of representatives of the genera Lebiasina and Piabucinaare described. Spermiogenesis is quite similar among all analyzed species of these genera and is identified as Type II.
Júlio César de O. Santana +3 more
doaj +1 more source
The genome tagging project (GTP) plays a pivotal role in addressing a critical gap in the understanding of protein functions. Within this framework, we successfully generated a human influenza hemagglutinin-tagged sperm-specific protein 411 (HA-tagged ...
Xue-Hai Zhou +12 more
doaj +1 more source
Role of Centriolar Matrix and Striated Rootlets in Centriolar Pairing and Orientation During Spermatogenesis in Hydractina echinata [PDF]
Transmission electron microscopy of the spermatogenic stages of the hydroid, Hydractinia echinata, reveals a series of complex structural and positional changes in the centrioles of spermatocytes and spermatids.
Kleve, Maurice G.
core +2 more sources
Intracytoplasmic spermatid injection and in vitro maturation: fact or fiction?
Intracytoplasmic injection with testicular spermatozoa has become a routine treatment in fertility clinics. Spermatozoa can be recovered in half of patients with nonobstructive azoospermia.
Veerle Vloeberghs +2 more
doaj
Alternative splicing of precursor messenger RNA (pre-mRNA) is common in mammalian cells and enables the production of multiple gene products from a single gene, thus increasing transcriptome and proteome diversity.
Clark, Brett J +11 more
core +1 more source
Trim66’s paternal deficiency causes intrauterine overgrowth
TRIM66 is a PHD-Bromo–containing protein primarily expressed in spermatids. Here, we report a paternal effect phenotype whereby homozygous Trim66 -mutant males sired progeny overweight at birth.
Monika Mielnicka +10 more
doaj +1 more source
Current problems with spermatid conception [PDF]
M, Sousa, A, Barros, J, Tesarik
openaire +2 more sources
TPTE, a testis-specific PTEN family member, drives spermatogenesis via PI(4,5)P<sub>2</sub> synthesis. [PDF]
Chen X +14 more
europepmc +1 more source

