Results 21 to 30 of about 83,183 (339)

Genetic mutation of Cep76 results in male infertility due to abnormal sperm tail composition [PDF]

Life Science Alliance
This study explores the role of CEP76 in male fertility via its predicted role in establishing a functional transition zone that mediates protein entry into the sperm tail.
Brendan J Houston, D Jo Merriner, G Gemma Stathatos, Joseph H Nguyen, Anne E O’Connor, Alexandra M Lopes, Donald F Conrad, Mark Baker, Jessica EM Dunleavy, Moira K O’Bryan   +9 more
doaj   +2 more sources

A STUDY ON SPERM TAIL ELEMENTS IN MOUSE BLASTOCYSTS [PDF]

Reproduction, 1971
Numerous studies have been published on the ultrastructural aspects of mammalian fertilization (Szollosi & Ris, 1961; Hadek, 1963, 1969; Austin, 1968; Barros & Franklin, 1968), and several recent articles have described changes in the head of the mammalian spermatozoon following its incorporation into the egg (Szollosi, 1965, 1969; Bedford ...
Hal D. McReynolds, Robert Hadek
openalex   +3 more sources

PRSS50 is a testis protease responsible for proper sperm tail formation and function. [PDF]

Development, 2021
Scovell JM, Bournat JC, Szafran AT, Solis M, Moore J, Rivera A, Chen CH, Zhang J, Wilken N, Seth A, Jorgez CJ.   +10 more
europepmc   +2 more sources

Pogonias courbina sperm characteristcs in its first reproductive season [PDF]

PeerJ, 2023
Southern black drum (Pogonias courbina) is a species distributed along the western Atlantic Ocean, and it is the largest Sciaenidae observed in the coast of Rio Grande do Sul state, Brazil.
Jhony Lisboa Benato, Danilo Streit Jr, Nathalia Dos Santos Teixeira, Rômulo Batista Rodrigues, Thaiza Rodrigues de Freitas, Marcelo Okamoto, Ricardo Rodrigues, Raquel Santos dos Santos, Renata Villar Dantas, Ana Paula de Abreu Balbinot, Rodrigo Ribeiro Bezerra de Oliveira, Lucas Campos Maltez, Olivia Menossi, Luis Andre Sampaio   +13 more
doaj   +2 more sources

Positioning of sperm tail longitudinal columns depends on NSUN7, an RNA-binding protein destabilizing elongated spermatid transcripts. [PDF]

RNA
Guseva EA, Averina OA, Isaev SV, Pletnev PI, Bragina EE, Permyakov OA, Buev VS, Priymak AV, Emelianova MA, Pshanichnaya L, Romanov EA, Novikova SE, Petriukov KS, Golovina AY, Grigorieva OO, Manskikh VN, Korshunova DS, Silaeva YY, Deykin AV, Rubtsova MP, Zgoda VG, Mazur AM, Prokhortchouk EB, Dontsova OA, Sergiev PV.   +24 more
europepmc   +3 more sources

Relationship of field and in vitro fertility of dairy bulls with sperm parameters, including DAG1 and SERPINA5 proteins

Frontiers in Animal Science, 2023
IntroductionSperm interacts with the female reproductive tract and oocyte through proteins, and these cell-to-cell interactions may play a role in sperm fertility.
Saulo Menegatti Zoca, Saulo Menegatti Zoca, Julie A. Walker, Adalaide C. Kline, Taylor N. Andrews, Jerica J. J. Rich, Kaitlin M. Epperson, Kaitlin M. Epperson, Jessica Nora Drum, Jessica Nora Drum, M. Sofia Ortega, M. Sofia Ortega, Robert A. Cushman, George A. Perry   +13 more
doaj   +1 more source

Sperm defects in primary ciliary dyskinesia and related causes of male infertility [PDF]

, 2020
The core axoneme structure of both the motile cilium and sperm tail has the same ultrastructural 9 + 2 microtubular arrangement. Thus, it can be expected that genetic defects in motile cilia also have an effect on sperm tail formation.
Loebinger, Michael R., Mitchison, Hannah M., Patel, Mitali, Shoemark, Amelia, Sironen, Anu   +4 more
core   +2 more sources

The missing linker between SUN5 and PMFBP1 in sperm head-tail coupling apparatus

Nature Communications, 2021
The sperm head-to-tail coupling apparatus ensures sperm head-tail integrity, but mechanistic insights remain limited. Here the authors demonstrate that CENTLEIN links and controls the interaction between SUN5 and PMFBP1, indicating that its impairments ...
Ying Zhang, Chao Liu, Bingbing Wu, Liansheng Li, Wei Li, Li Yuan   +5 more
doaj   +1 more source

A study of sperm quality assessment: Morphological defect in patients with normal sperm count

National Journal of Physiology, Pharmacy and Pharmacology, 2023
Background: Sperm morphology is the major benchmark in assessment of male infertility. There are limited studies available on frequency of qualitative defects of sperm in patients with normal sperm count.
Alpeshkumar M Maru, Yagnik P Tank, Bansari Y Tank, Amar R Shah, Anandkumar A Kanasagara   +4 more
doaj   +1 more source

Coiled-coil domain containing 42 (Ccdc42) is necessary for proper sperm development and male fertility in the mouse [PDF]

, 2016
Spermiogenesis is the differentiation of spermatids into motile sperm consisting of a head and a tail. The head harbors a condensed elongated nucleus partially covered by the acrosome-acroplaxome complex.
Berbari, Nicolas F., Kesterson, Robert A., Kierszenbaum, Abraham L., Malarkey, Erik, Pasek, Raymond C., Sharma, Neeraj, Tres, Laura L., Yoder, Bradley K.   +7 more
core   +1 more source