Results 81 to 90 of about 1,536,776 (399)

Somatic Pairing in Drosophila virilis Mitosis [PDF]

, 1975
In neuroblast cells homologous chromosomes tend to pair during prophase of mitosis. Heterochromatic elements of homologous chromosomes are widely separated in very early prophase, at which time the euchromatin is poorly stained.
Guest, William C.
core   +2 more sources

Immunocytochemical localization of chromatin regions UV-microirradiated in S phase or anaphase : Evidence for a territorial organization of chromosomes during cell cycle of cultured Chinese hamster cells [PDF]

, 1983
Chinese hamster cells (M3-1 line) in S phase were laser-UV-microirradiated (λ, 257 nm) at a small site of the nucleus. Cells were fixed either immediately thereafter or in subsequent stages of the cell cycle, including prophase and metaphase.
Avivi, Bennett, Berns, Boveri, Boveri, Comings, Cornelis, Cornelis, Cremer, Cremer, Cremer, Cremer, Cremer, Cremer, Cremer, Cremer, Cremer, Cremer, Earnshaw, Gray, Hager, Hancock, Hancock, Hens, Laemmli, Rabl, Regan, Sakharov, Sedat, Sperling, Stack, Trosko, Vogel, Zorn   +33 more
core   +1 more source

Comparing self‐reported race and genetic ancestry for identifying potential differentially methylated sites in endometrial cancer: insights from African ancestry proportions using machine learning models

Molecular Oncology, EarlyView.
Integrating ancestry, differential methylation analysis, and machine learning, we identified robust epigenetic signature genes (ESGs) and Core‐ESGs in Black and White women with endometrial cancer. Core‐ESGs (namely APOBEC1 and PLEKHG5) methylation levels were significantly associated with survival, with tumors from high African ancestry (THA) showing ...
Huma Asif, J. Julie Kim
wiley   +1 more source

Method of obtaining metaphase cells for oyster karyotyping [PDF]

Biotemas, 2010
Currently, mariculture is growing on the coast of Santa Catarina and Florianópolis is the largest producer of oysters in Brazil, cultivating the Japanese oyster Crassostrea gigas (Thunberg, 1793).
Rafael Alves, Aimê Rachel Magenta Magalhães   +1 more
doaj  

A large‐scale retrospective study in metastatic breast cancer patients using circulating tumour DNA and machine learning to predict treatment outcome and progression‐free survival

Molecular Oncology, EarlyView.
There is an unmet need in metastatic breast cancer patients to monitor therapy response in real time. In this study, we show how a noninvasive and affordable strategy based on sequencing of plasma samples with longitudinal tracking of tumour fraction paired with a statistical model provides valuable information on treatment response in advance of the ...
Emma J. Beddowes, Mario Ortega Duran, Solon Karapanagiotis, Alistair Martin, Meiling Gao, Riccardo Masina, Ramona Woitek, James Tanner, Fleur Tippin, Justine Kane, Jonathan Lay, Anja Brouwer, Stephen‐John Sammut, Suet‐Feung Chin, Davina Gale, Dana W. Y. Tsui, Sarah‐Jane Dawson, Nitzan Rosenfeld, Maurizio Callari, Oscar M. Rueda, Carlos Caldas   +20 more
wiley   +1 more source

The Rice AAA-ATPase OsFIGNL1 Is Essential for Male Meiosis

Frontiers in Plant Science, 2017
Meiosis is crucial in reproduction of plants and ensuring genetic diversity. Although several genes involved in homologous recombination and DNA repair have been reported, their functions in rice (Oryza sativa) male meiosis remain poorly understood. Here,
Peipei Zhang, Peipei Zhang, Yingxin Zhang, Lianping Sun, Sittipun Sinumporn, Zhengfu Yang, Bin Sun, Dandan Xuan, Zihe Li, Ping Yu, Weixun Wu, Kejian Wang, Liyong Cao, Shihua Cheng   +13 more
doaj   +1 more source

Self-assembly and DNA binding of the blocking factor in X chromosome inactivation [PDF]

, 2007
X chromosome inactivation (XCI) is the phenomenon occurring in female mammals whereby dosage compensation of X-linked genes is obtained by transcriptional silencing of one of their two X chromosomes, randomly chosen during early embryo development. The
Antonella Prisco, Mario Nicodemi, Michele Caselle   +2 more
core   +3 more sources

Multi‐omic characterization of consensus molecular subtype 1 (CMS1) colorectal cancer with dampened immune response improves precision medicine

Molecular Oncology, EarlyView.
This study highlights the importance of multi‐omic analyses in characterizing colorectal cancers. Indeed, our analysis revealed a rare CMS1 exhibiting dampened immune activation, including reduced PD‐1 expression, moderate CD8+ T‐cell infiltration, and suppressed JAK/STAT pathway.
Livia Concetti, Manuel Scimeca, Julia Bischof, Jonathan Woodsmith, Massimiliano Agostini, Cristina Fiorani, Yufang Shi, Eleonora Candi, Gerry Melino, Alessandro Mauriello, Giuseppe S. Sica   +10 more
wiley   +1 more source

Selection of optimal bioinformatic tools and proper reference for reducing the alignment error in targeted sequencing data

Journal of Medical Signals and Sensors, 2021
Background: Careful design in the primary steps of a next-generation sequencing study is critical for obtaining successful results in downstream analysis.
Hannane Mohammadi Nodehi, Mohammad Amin Tabatabaiefar, Mohammadreza Sehhati   +2 more
doaj   +1 more source

The Discovery of XY Sex Chromosomes in a \u3cem\u3eBoa\u3c/em\u3e and \u3cem\u3ePython\u3c/em\u3e [PDF]

, 2017
For over 50 years, biologists have accepted that all extant snakes share the same ZW sex chromosomes derived from a common ancestor [1, 2, 3], with different species exhibiting sex chromosomes at varying stages of differentiation.
Banks, Jason L., Booth, Warren, Card, Daren C., Castoe, Todd A., Gamble, Tony, Nielsen, Stuart V., Schield, Drew R., Schuett, Gordon W.   +7 more
core   +1 more source