Results 101 to 110 of about 57,771 (301)

Atypical heat shock transcription factor HSF5 is critical for male meiotic prophase under non-stress conditions

Nature Communications
Meiotic prophase progression is differently regulated in males and females. In males, pachytene transition during meiotic prophase is accompanied by robust alteration in gene expression.
Saori Yoshimura, Ryuki Shimada, Koji Kikuchi, Soichiro Kawagoe, Hironori Abe, Sakie Iisaka, Sayoko Fujimura, Kei-ichiro Yasunaga, Shingo Usuki, Naoki Tani, Takashi Ohba, Eiji Kondoh, Tomohide Saio, Kimi Araki, Kei-ichiro Ishiguro   +14 more
doaj   +1 more source

Molecular analysis of the effects of steroid hormones on mouse meiotic prophase I progression

Reproductive Biology and Endocrinology, 2019
Background Infertility is linked to depletion of the primordial follicle pool consisting of individual oocytes arrested at the diplotene stage of meiotic prophase I surrounded by granulosa cells.
Deion M. Burks, Margaret R. McCoy, Sudipta Dutta, Connie J. Mark-Kappeler, Patricia B. Hoyer, Melissa E. Pepling   +5 more
doaj   +1 more source

Cytochemical investigations of the megasporocyte and embryo sac in Lilium regale at various stages of development

Acta Societatis Botanicorum Poloniae, 2015
During megasporocyte and embryo sac development in Lilium regale, characteristic changes were noted within the cytoplasm. In the course of prophase I there appear parallel systems of endoplasmic reticulum cisternae which further transform to cytoplasmic ...
C. Marciniak
doaj   +1 more source

Mouse oocytes depend on BubR1 for proper chromosome segregation but not for prophase I arrest

Nature Communications, 2015
Mammalian female meiosis is error prone, with rates of meiotic chromosome missegregations strongly increasing towards the end of the reproductive lifespan.
Sandra A. Touati, Eulalie Buffin, Damien Cladière, Khaled Hached, C. Rachez, J. V. van Deursen, Katja Wassmann   +6 more
semanticscholar   +1 more source

Kinetochore inactivation by expression of a repressive mRNA. [PDF]

, 2017
Differentiation programs such as meiosis depend on extensive gene regulation to mediate cellular morphogenesis. Meiosis requires transient removal of the outer kinetochore, the complex that connects microtubules to chromosomes.
Chen, Jingxun, Chia, Minghao, Jorgensen, Victoria, Liao, Hanna, McSwiggen, David T, Spedale, Gianpiero, Tresenrider, Amy, van Werven, Folkert Jacobus, Ünal, Elçin   +8 more
core   +2 more sources

Ecotoxicological Evaluation of Organic Sunscreens Used Worldwide, Alone and in Mixture, on Terrestrial Plants

Environmental Toxicology, EarlyView.
ABSTRACT The environmental hazards of sunscreens are discussed worldwide. However, there are few ecotoxicological studies on these compounds alone for edaphic organisms, and none for their mixtures. Avobenzone (1 and 10 ng/L), octocrylene (10 and 100 μg/L), and oxybenzone (2 and 20 μg/L), alone and in binary combinations (between the lowest and the ...
Diego Espirito Santo, Edson Araújo de Almeida, Elisângela Dusman, A. C. Downs, Regiane da Silva Gonzalez, Osvaldo Valarini Junior, Ana Paula Peron   +6 more
wiley   +1 more source

The use of deidentified organ donor testes for research

Andrology, EarlyView.
Abstract Our knowledge of testis development and function mainly comes from research using mammalian model organisms, primarily the mouse. However, there are integral differences between men and other mammalian species regarding cellular composition and expression profiles during fetal and post‐natal testis development and in the mature testis ...
Marina V. Pryzhkova, Marnie W. Skinner, Juliana I. Candelaria, Stephen R. Wellard, Philip W. Jordan   +4 more
wiley   +1 more source

PCC-like induction of mitosis in Chara vulgaris antheridia initiating differentiation of spermatozoids in the darkness

Acta Societatis Botanicorum Poloniae, 2014
The objects of this research were the antheridial filament cells of Chara vulgaris which after 5-day mitodepressing treatment of the darkness reactivated mitosis (without light stimulation) in the result of the physiological state evocing the initiation ...
Maria Kwiatkowska
doaj   +1 more source

Centripetal nuclear shape fluctuations associate with chromatin condensation in early prophase [PDF]

, 2023
Viola Introini, Gururaj Rao Kidiyoor, Giancarlo Porcella, Pietro Cicuta, Marco Cosentino Lagomarsino   +4 more
openalex   +1 more source

Cyclic AMP in oocytes controls meiotic prophase I and primordial folliculogenesis in the perinatal mouse ovary

Development, 2015
In mammalian ovaries, a fixed population of primordial follicles forms during the perinatal stage and the oocytes contained within are arrested at the dictyate stage of meiotic prophase I.
Yi-jing Wang, Zhen Teng, Ge Li, Xinyi Mu, Zhengpin Wang, Lizhao Feng, Wanbao Niu, Kun Huang, Xi Xiang, Chao Wang, Hua Zhang, G. Xia   +11 more
semanticscholar   +1 more source