Results 31 to 40 of about 22,975 (207)

Spermatids as gametes: indications and limitations [PDF]

open access: yesHuman Reproduction, 1998
The feasibility of achieving viable embryos, developing to term after transfer into the uterus, by fertilizing oocytes with spermatids has been demonstrated both in animal studies and in preliminary human clinical trials. Here we review the current clinical indications of spermatid conception and discuss the predictable success rates associated with ...
J, Tesarik   +3 more
openaire   +2 more sources

MICROTUBULES IN THE SPERMATIDS OF THE DOMESTIC FOWL [PDF]

open access: yesThe 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

Immunofluorescent localization of the mouse PRAMEL1 in spermatids.

open access: yes, 2013
Testis sections (a, c, e and g) and squash preparations of seminiferous tubules (b, d, f and h) were stained with anti-PRAMEL1 (green), anti-TUBB (red) and DAPI (blue).
Mitsuru Chiba (397322)   +7 more
core   +1 more source

Increasing Mature Spermatids Formation Using Pasak Bumi [PDF]

open access: yes, 2023
Pasak bumi as a rare plant with eroded status is benefit as aphrodisiac for  Borneo men. This study investigate the effect of pasak bumi (Eurycoma longifolia) on spermatozoon cell stages development.
Adi Winarto   +2 more
core   +1 more source

Germ cell differentiation-dependent and stage-specific expression of LANCL1 in rodent testis

open access: yesEuropean 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

Intracytoplasmic Injection Using Spermatids and Subsequent Pregnancies: Round Versus Elongated Spermatids [PDF]

open access: yesJournal 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

Successful fertilization and embryo development after spermatid injection: A hope for nonobstructive azoospermic patients

open access: yesJournal 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

open access: yesScientific 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

Identification of Spermatogenic Cells Expressing Protamine mRNA in Japanese Quail by RT-PCR

open access: yesThe 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

Generation of Haploid Spermatids with Fertilization and Development Capacity from Human Spermatogonial Stem Cells of Cryptorchid Patients

open access: yesStem Cell Reports, 2014
Generation of functional spermatids from azoospermia patients is of unusual significance in the treatment of male infertility. Here, we report an efficient approach to obtain human functional spermatids from cryptorchid patients.
Shi Yang   +10 more
doaj   +1 more source

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