Plasma and testicular testosterone levels, volume density and number of Leydig cells and spermatogenic efficiency of rabbits [PDF]
, 2002 Plasma and tissue testosterone concentrations were determined by radioimmunoassay in 12 eight-month-old sexually mature New Zealand White rabbits and evaluated for possible associations with spermatogenic efficiency as well as with volume density and ...
Berndtson, William E. +2 more
core +2 more sources
Germ cell differentiation-dependent and stage-specific expression of LANCL1 in rodent testis
European Journal of Histochemistry, 2009 LANCL1 (LanC-like protein 1) is related to the bacterial LanC (lanthionine synthetase C) family, which is involved in the biosynthesis of antimicrobial peptides.
JE Nielsen, MA Hansen, M Jørgensen
doaj +1 more source
A case of intersex occurrence in Steindachneridion parahybae (Steindachner, 1877) (Siluriformes: Pimelodidae) under captivity condition: A cytogenetic and morphological study [PDF]
, 2016 Poco se sabe sobre la biología reproductiva de Steindachneridion parahybae , una especie de teleósteo gonocorístico en peligro de extinción que habita la cuenca del río Paraíba do Sul y en éste trabajo se describe por primera vez la aparición de ...
Caneppele, Danilo +4 more
core +2 more sources
Journal of Human Reproductive Sciences, 2015 Spermatids are the earliest male germ cells with haploid set of chromosomes. Spermatid injection was introduced in human assisted reproduction for the treatment of men with non-obstructive azoospermia.
Geeta Goswami +2 more
doaj +1 more source
TCFL5 deficiency impairs the pachytene to diplotene transition during spermatogenesis in the mouse
Scientific Reports, 2022 Spermatogenesis is a complex, multistep process during which spermatogonia give rise to spermatozoa. Transcription Factor Like 5 (TCFL5) is a transcription factor that has been described expressed during spermatogenesis.
Javier Galán-Martínez +5 more
doaj +1 more source
A surge of late-occurring meiotic double-strand breaks rescues synapsis abnormalities in spermatocytes of mice with hypomorphic expression of SPO11 [PDF]
, 2015 Meiosis is the biological process that, after a cycle of DNA replication, halves the cellular chromosome complement, leading to the formation of haploid gametes.
Barchi, Marco +9 more
core +3 more sources
Intracytoplasmic Injection Using Spermatids and Subsequent Pregnancies: Round Versus Elongated Spermatids [PDF]
Journal of Assisted Reproduction and Genetics, 2002 The purpose of this clinical trial study was to report the outcome of intracytoplasmic injection of round (RS) and elongated (ES) spermatids retrieved from the testis of nonobstructive men. Seven and three cycles using RS and ES injections were performed, respectively.
Mohammad A, Khalili +2 more
openaire +2 more sources
PSMA8‐Containing 20S Proteasome Regulates Spermiogenesis and Male Fertility
Advanced Science, EarlyView.PSMA8 assembles s20S proteasome that degrades specific substrates in elongating spermatids. Degradation of s20S‐substrates activates translation of FXR1‐target mRNAs, which are essential for mitochondrial sheath formation and sperm morphogenesis.
Huiwen Cao +7 more
wiley +1 more source
Identification of Spermatogenic Cells Expressing Protamine mRNA in Japanese Quail by RT-PCR
The Journal of Poultry Science, 2005 This study was conducted by reverse transcription-polymerase chain reaction (RT-PCR) analysis to determine when the protamine mRNA is expressed in testicular germ cells during spermatogenesis in quail.
Upi Chairun Nisa +7 more
doaj +1 more source
Methylation of the Gpat2 promoter regulates transient expression during mouse spermatogenesis [PDF]
, 2015 Spermatogenesis is a highly regulated process that involves both mitotic and meiotic divisions, as well as cellular differentiation to yield mature spermatozoa from undifferentiated germinal stem cells.
Cattaneo, Elizabeth Renee +6 more
core +2 more sources