Results 21 to 30 of about 63,250 (285)

Induced aneuploidy in neural stem cells triggers a delayed stress response and impairs adult life span in flies.

open access: yesPLoS Biology, 2019
Studying aneuploidy during organism development has strong limitations because chronic mitotic perturbations used to generate aneuploidy usually result in lethality.
Mihailo Mirkovic   +4 more
doaj   +1 more source

Modulation of Aneuploidy in Leishmania donovani during Adaptation to Different In Vitro and In Vivo Environments and Its Impact on Gene Expression

open access: yesmBio, 2017
Aneuploidy is usually deleterious in multicellular organisms but appears to be tolerated and potentially beneficial in unicellular organisms, including pathogens. Leishmania, a major protozoan parasite, is emerging as a new model for aneuploidy, since in
F. Dumetz   +17 more
doaj   +1 more source

Chromosomal Instability, Aneuploidy, and Gene Mutations in Human Sporadic Colorectal Adenomas

open access: yesCellular Oncology, 2004
Whether in vivo specific gene mutations lead to chromosomal instability (CIN) and aneuploidy or viceversa is so far not proven. We hypothesized that aneuploidy among human sporadic colorectal adenomas and KRAS2 and APC mutations were not independent ...
Walter Giaretti   +3 more
doaj   +1 more source

Aneuploidy in the normal, Alzheimer's disease and ataxia-telangiectasia brain: Differential expression and pathological meaning

open access: yesNeurobiology of Disease, 2009
Recently it has been suggested that the human brain contains aneuploid cells; however the nature and magnitude of neural aneuploidy in health and disease remain obscure. Here, we have monitored aneuploidy in the cerebral cortex of the normal, Alzheimer's
Ivan Y. Iourov   +3 more
doaj   +1 more source

Selfish centromeres and the wastefulness of human reproduction.

open access: yesPLoS Biology, 2022
Many human embryos die in utero owing to an excess or deficit of chromosomes, a phenomenon known as aneuploidy; this is largely a consequence of nondisjunction during maternal meiosis I.
Laurence D Hurst
doaj   +1 more source

Aneuploidy and confined chromosomal mosaicism in the developing human brain. [PDF]

open access: yesPLoS ONE, 2007
BACKGROUND: Understanding the mechanisms underlying generation of neuronal variability and complexity remains the central challenge for neuroscience.
Yuri B Yurov   +11 more
doaj   +1 more source

Molecular signatures of aneuploidy-driven adaptive evolution

open access: yesNature Communications, 2020
Aneuploidy (abnormal chromosome number) can enable rapid adaptation to stress conditions, but it also entails fitness costs from gene imbalance. Here, the authors experimentally evolve yeast while forcing maintenance of aneuploidy to identify the ...
Alaattin Kaya   +8 more
doaj   +1 more source

Aneuploidy tolerance caused by BRG1 loss allows chromosome gains and recovery of fitness

open access: yesNature Communications, 2022
Aneuploidy results in decreased cellular fitness in many species and model systems. However, aneuploidy is commonly found in cancer cells and often correlates with aggressive growth, suggesting that the impact of aneuploidy on cellular fitness is context
Federica Schiavoni   +7 more
doaj   +1 more source

Comparison of aneuploidy rate in spontaneous abortion chorionic villus between D6 and D5 thawed-frozen blastocyst transfer

open access: yesBMC Pregnancy and Childbirth, 2023
Background To compare the aneuploidy rate in spontaneous abortion chorionic villus (SA-CV) after D5 and D6 thawed-frozen blastocyst transfer(TBT). Methods This retrospective cohort study recruited 522 patients with early spontaneous abortion from March ...
Weie Zhao   +5 more
doaj   +1 more source

Quantitative proteomic analysis reveals posttranslational responses to aneuploidy in yeast

open access: yeseLife, 2014
Aneuploidy causes severe developmental defects and is a near universal feature of tumor cells. Despite its profound effects, the cellular processes affected by aneuploidy are not well characterized. Here, we examined the consequences of aneuploidy on the
Noah Dephoure   +6 more
doaj   +1 more source

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