Results 51 to 60 of about 20,184 (239)

Time-lapse imaging of Drosophila testis for monitoring actin dynamics and sperm release

STAR Protocols, 2022
Summary: Here we describe a simple step-by-step protocol for collecting high-resolution, time-lapse images of intact Drosophila testis ex vivo for a limited period using a confocal microscope, with minimum photo-toxic damage, to monitor spermatid ...
Tushna Kapoor, Pankaj Dubey, Krishanu Ray   +2 more
doaj   +1 more source

The Influence of Drosophila Spire and Myosin V During Mid‐Oogenesis Is Independent of Their Direct Interaction

Cytoskeleton, EarlyView.
ABSTRACT Cooperativity between cytoskeletal proteins is crucial for spatiotemporal coordination in biological processes, like oogenesis. In mammalian and Drosophila oogenesis, proper assembly and function of actin networks require coordination between actin assembly factors Spire and formins, as well as actin‐associated proteins like myosins and Rab ...
Joseph Y. Ong, Hannah M. Bailey, Emma Carley, Michelle Panzica, Merin Rixen, Neil Billington, Rong Liu, Margot E. Quinlan   +7 more
wiley   +1 more source

Gonads and gametogenesis in Chaetodactylus osmiae (Acariformes: Astigmata: Chaetodactylidae) a parasite of solitary bees [PDF]

, 2018
International audienceChaetodactylus osmiae (Dufour, 1839) is a mite parasitizing the solitary bee - Osmia rufa L.- used as a commercial pollinator. In this study we present the anatomy of female and male reproductive systems of this species as well as ...
Rożej-Pabijan, Elżbieta, Witaliński, Wojciech   +1 more
core   +3 more sources

The impact of hydroalcoholic extracts of Peganum harmala and Piper longum on pituitary- gonad axis hormone levels of male NMRI mice

یافته‌های نوین در علوم زیستی, 2017
Several therapeutic effects have been reported for Peganum harmala and Piper longum. These plants contain flavonoids that probably can affect reproductive endocrine system and reduce fertility.
Namdar Yousefvand, Delaram Eslimi Esfahani, Tayebeh Bahrami   +2 more
doaj  

SPARK: A webserver for comprehensive search and analysis of testicular single‐cell transcriptomic data covering full lifecycle and pathology

iMetaOmics, EarlyView.
SPARK is an interactive platform hosting 189,232 human testicular single‐cell transcriptomes across normal and infertile conditions. It enables automated, code‐free analysis and visualization, providing a powerful resource to explore cellular and molecular dynamics in male reproduction and infertility.
Lina Cui, Xiaojian Lu, Hui Cai, Ziyan Zhuang, Yifei Guo, Qiaoling Jiang, Zhe Zhang, Hui Jiang, Xiaoyan Wang, Jingtao Guo   +9 more
wiley   +1 more source

Spermiogenesis and spermatozoa ultrastructure in five species of the Curimatidae with some considerations on spermatozoal ultrastructure in the Characiformes

Neotropical Ichthyology
Spermiogenesis in the curimatid species, Steindachnerina insculpta, Cyphocharax gillii, C. modestus, C. spilotus, and Potamorhina altamazonica, is characterized by lateral development of the flagellum, nuclear rotation, eccentric nuclear fossa formation,
Irani Quagio-Grassiotto, Maria Carolina Gameiro, Tatiana Schneider, Luiz Roberto Malabarba, Claudio Oliveira   +4 more
doaj   +1 more source

Effect of transient scrotal hyperthermia on sperm parameters, seminal plasma biochemical markers, and oxidative stress in men

Asian Journal of Andrology, 2015
In this experimental prospective study, we aimed to analyze the effect of transient scrotal hyperthermia on the male reproductive organs, from the perspective of sperm parameters, semen plasma biochemical markers, and oxidative stress, to evaluate ...
Meng Rao, Xiao-Ling Zhao, Jing Yang, Shi-Fu Hu, Hui Lei, Wei Xia, Chang-Hong Zhu   +6 more
doaj   +1 more source

Paternal Exposure to the Neonicotinoid Pesticide Clothianidin Alters Sperm MicroRNA Profiles in Mice and Intergenerationally Reduces Locomotor Activity in Male Offspring

Journal of Applied Toxicology, EarlyView.
ABSTRACT Accumulating evidence suggests that paternal environmental factors have epigenetic effects on sperm and influence offspring. Neonicotinoid pesticides (NNs), which are widely used around the world, are known to affect offspring phenotypes through maternal exposure in mice, but the effect of the paternal exposure remains unknown.
Makiko Ito, Tetsushi Hirano, Sarika Nunobiki, Ayano Yoshimoto, Yukako Hara, Yuya Ishida, Sakura Yonoichi, Youhei Mantani, Toshifumi Yokoyama, Yoshiaki Tabuchi, Yoshinori Ikenaka, Nobuhiko Hoshi   +11 more
wiley   +1 more source

PENGARUH EKSTRAK ETANOL PROPOLIS TERHADAP PENURUNAN JUMLAH SPERMATID MENCIT (Mus musculus) YANG DIPAPAR ASAP ROKOK [PDF]

, 2015
Latar Belakang. Ekstrak etanol Propolis mengandung flavonoid, terpenoid, dan Caffeic Acid Phenethyl Ester (CAPE), vitamin A, vitamin C, vitamin E yang berpotensi sebagai antioksidan untuk melindungi spermatid dari radikal bebas.
Sutikno, Mugi Tri
core  

RBM5 Is a Male Germ Cell Splicing Factor and Is Required for Spermatid Differentiation and Male Fertility

, 2015
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, D'Sylva, Rebecca J, Goodnow, Christopher C, Jamsai, Duangporn, McLaughlin, Eileen A, O'Bryan, Moira K, O'Connor, Anne E, O'Donnell, Liza, Ormandy, Christopher J, Sutherland, Jessie, Whittle, Belinda, Wilce, Jacqueline A   +11 more
core   +1 more source