Results 1 to 10 of about 115,560 (292)

Defective X-chromosome inactivation and cancer risk in women [PDF]

open access: goldCommunications Biology
X-chromosome inactivation (XCI) is a fundamental mechanism in placental mammals that compensates for gene dosage differences between sexes. Using methylation levels of genes under XCI, we establish defective levels of XCI as a new source of ...
Alejandro Cáceres   +5 more
doaj   +4 more sources

The microtubule-severing enzyme spastin regulates spindle dynamics to promote chromosome segregation in Trypanosoma brucei [PDF]

open access: yesCommunications Biology
Microtubule-severing enzymes play essential roles in diverse cellular processes, including mitosis and cytokinesis, by modulating microtubule dynamics.
Thiago Souza Onofre, Qing Zhou, Ziyin Li
doaj   +2 more sources

Micronuclei and chromosomal aberrations in healthy tobacco chewers and controls: A study from Gujarat, India [PDF]

open access: yesArchive of Oncology, 2009
Background: Tobacco chewing is attributed to oral cancer. Prediction of cancer development by genotoxicity analysis is a major challenge to identify tobacco users at greater risk.
Bakshi Sonal R.   +5 more
doaj   +1 more source

Chromosome axis defects induce a checkpoint-mediated delay and interchromosomal effect on crossing over during Drosophila meiosis. [PDF]

open access: yesPLoS Genetics, 2010
Crossovers mediate the accurate segregation of homologous chromosomes during meiosis. The widely conserved pch2 gene of Drosophila melanogaster is required for a pachytene checkpoint that delays prophase progression when genes necessary for DSB repair ...
Eric F Joyce, Kim S McKim
doaj   +1 more source

Comparative evaluation of micronuclei in Saudi smokers and non-smokers without any visible oral lesions– A pilot study.

open access: yesJournal of Oral Research, 2019
Objectives: A systematic review was conducted to evaluate effectiveness and safety of beta carotenes for the treatment of oral leukoplakia regarding clinical resolution and prevention of malignant transformation.
Kiran Kumar Ganji   +6 more
doaj   +1 more source

Anchoring of Heterochromatin to the Nuclear Lamina Reinforces Dosage Compensation-Mediated Gene Repression. [PDF]

open access: yesPLoS Genetics, 2016
Higher order chromosome structure and nuclear architecture can have profound effects on gene regulation. We analyzed how compartmentalizing the genome by tethering heterochromatic regions to the nuclear lamina affects dosage compensation in the nematode ...
Martha J Snyder   +6 more
doaj   +1 more source

Wolbachia-mediated male killing is associated with defective chromatin remodeling. [PDF]

open access: yesPLoS ONE, 2012
Male killing, induced by different bacterial taxa of maternally inherited microorganisms, resulting in highly distorted female-biased sex-ratios, is a common phenomenon among arthropods. Some strains of the endosymbiont bacteria Wolbachia have been shown
Maria Giovanna Riparbelli   +3 more
doaj   +1 more source

All nonhomologous chromosomes and rearrangements in Saccharum officinarum × Saccharum spontaneum allopolyploids identified by oligo-based painting

open access: yesFrontiers in Plant Science, 2023
Modern sugarcane cultivars (Saccharum spp., 2n = 100~120) are complex polyploids primarily derived from interspecific hybridization between S. officinarum and S. spontaneum.
Jin Chai   +15 more
doaj   +1 more source

Screening for chromosomal defects [PDF]

open access: yesUltrasound in Obstetrics & Gynecology, 2003
Chromosomal abnormalities are major causes of perinatal death and childhood handicap. Consequently, the detection of chromosomal disorders constitutes the most frequent indication for invasive prenatal diagnosis. However, invasive testing, by amniocentesis, chorionic villus sampling (CVS) or cordocentesis, is associated with a risk of miscarriage of ...
openaire   +2 more sources

Functional evidence implicating chromosome 7q22 haploinsufficiency in myelodysplastic syndrome pathogenesis

open access: yeseLife, 2015
Chromosome 7 deletions are highly prevalent in myelodysplastic syndrome (MDS) and likely contribute to aberrant growth through haploinsufficiency. We generated mice with a heterozygous germ line deletion of a 2-Mb interval of chromosome band 5A3 syntenic
Jasmine C Wong   +15 more
doaj   +1 more source

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