Results 41 to 50 of about 46,817 (257)

Transepithelial projections from basal cells are luminal sensors in pseudostratified epithelia

, 2008
Basal cells are by definition located on the basolateral side of several epithelia, and they have never been observed reaching the lumen. Using high-resolution 3D confocal imaging, we report that basal cells extend long and slender cytoplasmic ...
McKee, Mary, Shum, Winnie Wai Chi, Breton, Sylvie, Brown, Dennis, Smith, Peter J.S., Da Silva, Nicolas   +5 more
core   +1 more source

Papillary cystadenoma of the epididymis

, 2022
Background Papillary cystadenoma is a rare benign neoplasm of the epididymis. It may occur sporadically or in association with von Hippel-Lindau disease (VHLD).
Billy H. Cordon, Olga Lopez, Lydia Howard, Ruben Delgado, Hisham F. Bahmad, Robert Poppiti   +5 more
core   +1 more source

WFS1 Deficiency Impairs PIAS4‐Associated SUMOylation and Increases Ubiquitin‐Mediated Spermatogenesis‐Related Protein Degradation Leading to Testicular Male Infertility

Advanced Science, EarlyView.
The findings establish a critical role for WFS1 in human male fertility. Mechanistically, WFS1 interacts with PIAS4 to promote the SUMOylation of key spermatogenesis‐associated proteins, which in turn competitively inhibits their K48‐linked ubiquitin‐mediated degradation during spermatogenesis.
Yunchuan Tian, Guicheng Zhao, Xiang Wang, Xinyao Tang, Gan Shen, Tiechao Ruan, Chuan Jiang, Shikun Zhao, Jincheng Zhang, Xinyue Cui, Liangchai Zhuo, Jun Ma, Yihong Yang, Tingting Lin, Ying Shen   +14 more
wiley   +1 more source

The significance of single-cell transcriptome analysis in epididymis research

Frontiers in Cell and Developmental Biology
As a crucial component of the male reproductive system, the epididymis plays multiple roles, including sperm storage and secretion of nutritive fluids for sperm development and maturation.
Meng-Meng Liu, Xin-Lei Feng, Chao Qi, Shu-Er Zhang, Guo-Liang Zhang   +4 more
doaj   +1 more source

Developmental morphology of claspers and clasper‐glands during maturation in Potamotrygon wallacei (Chondrichthyes: Potamotrygoninae)

The Anatomical Record, EarlyView.
Abstract The claspers are the copulatory organs in male elasmobranchs, responsible for directing the semen into the female cloaca (C). However, the microscopic morphology of the claspers remains poorly understood. This study describes the morphology of the claspers and clasper glands (CGs) of cururu stingray (Potamotrygon wallacei) at different ...
Matheus Samuel Cunha Braga, Grazyelle Sebrenski da Silva, Maria Inês Braga de Oliveira, Jaydione Luiz Marcon, Ruben Dario Morales Gamba   +4 more
wiley   +1 more source

Morphophysiological dynamics of the proximal post‐testicular ducts in Crotalus durissus Linnaeus, 1758 (Squamata: Viperidae)

The Anatomical Record, EarlyView.
Abstract The organization and function of reptilian excurrent ducts remain poorly characterized, particularly in Neotropical snakes. We provide the first integrative morphological, histochemical, immunohistochemical, and ultrastructural analysis of the proximal post‐testicular ducts of Crotalus durissus across reproductive stages.
Flávia Cappuccio de Resende, Gustavo Caldeira Cotta, Clara d' Ávila Fonseca Paiva de Paula Freitas, Leonardo Carvalho, Heloísa Helena Marques Oliveira, Victória Gomes Carvalho Silva, Lívia de Fátima Moreira Silva, Luciana Maria Silva, Samyra Maria dos Santos Nassif Lacerda, Guilherme Mattos Jardim Costa   +9 more
wiley   +1 more source

The Epididymis as a Chloride-Secreting Organ

, 1994
The epididymis secretes C1- upon stimulation with secretory agonists. This creates an osmotic gradient for isosmotic fluid secretion. Electrolyte and fluid secretion by the epididymis regulates the fluidity of the luminal content. Defective secretion in
AYH Leung, PYD Wong
core   +1 more source

Hormonal control and signaling of the testis of the bat Molossus molossus during the processes of testicular maturation, regression, and recrudescence

The Anatomical Record, EarlyView.
Abstract Molossus molossus, a species of neotropical bat belonging to the Molossidae family, has an annual reproductive cycle that includes two peaks of spermatogenic activity, one in April and another in September, and a period of total testicular regression in December.
Emília M. Soares, Juliana F. Ferraz, Cornélio S. Santiago, Larissa P. R. Venâncio, Arlindo G. Macedo‐Junior, Sebastião R. Taboga, Mateus R. Beguelini   +6 more
wiley   +1 more source

Epididymis-specific lipocalin promoters

, 2007
Our goal is to decipher which DNA sequences are required for tissue-specific expression of epididymal genes. At least 6 epididymis-specific lipocalin genes are known. These are differently regulated and regionalized in the epididymis.
Robert J. Matusik, Orgebin-Christ, Marie-Claire, Matusik, R.J., Lareyre, Jean-Jacques, Richard M. Caprioli, Caprioli, R.M., Araki, Yoshihiko, Marie-Claire Orgebin-Crist, Jean-Jacques Lareyre, Chaurand, Pierre, Yoshihiko Araki, Yu, Xiuping, Xiuping Yu, Suzuki, Kichiya, Kichiya Suzuki, Pierre Chaurand   +15 more
core   +1 more source

Effect of alcoholic extract of soy bean consumption by pregnant mice on the testis and epididymis of their male offspring's

Al-Mustansiriyah Journal of Pharmaceutical Sciences, 2013
Soy is flavones are phytoestrogens with potential hormonal activity due to their similar chemical structure to 17-B-estradiol. The increasing availability of Soy is flavones throughout the food supply and through use of supplements has prompted ...
Abeer Salih Ali, Nisreen Khazal Flayyih, Hadeel Mohammed Qasim   +2 more
doaj   +1 more source