Results 21 to 30 of about 317,056 (255)
Phylogenetic studies on three Helicotylenchus species based on 28S rDNA and mtCOI sequence data
Journal of Nematology, 2019 To facilitate the process of spiral nematode species delineation, populations of Helicotylenchus canadensis, H. pseudorobustus, and H. varicaudatus deriving from various locations and diverse natural and anthropogenic environments from Poland were ...
Rybarczyk-Mydłowska K. +2 more
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Memorias do Instituto Oswaldo Cruz, 2013 As the distribution of Candida species and their susceptibility to antifungal agents have changed, a new means of accurately and rapidly identifying these species is necessary for the successful early resolution of infection and the subsequent reduction ...
Constanza Giselle Taverna +6 more
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Ribosomal DNA magnification in Saccharomyces cerevisiae [PDF]
Journal of Bacteriology, 1978 Strains monosomic for chromosome I of Saccharomyces cerevisiae contain 25 to 35% fewer rRNA genes than do normal diploid strains. When these strains are repeatedly subcultured, colonies are isolated that have magnified their number of rRNA genes to the diploid amount while remaining monosomic for chromosome I.
D B, Kaback, H O, Halvorson
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Early life stress inhibits expression of ribosomal RNA in the developing hippocampus. [PDF]
PLoS ONE, 2014 Children that are exposed to abuse or neglect show abnormal hippocampal function. However, the developmental mechanisms by which early life stress (ELS) impairs normal hippocampal development have not been elucidated. Here we propose that exposure to ELS
Lan Wei, Jin Hao, Arie Kaffman
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DNA Methylation Analysis of Ribosomal DNA in Adults With Down Syndrome
Frontiers in Genetics, 2022 Control of ribosome biogenesis is a critical aspect of the regulation of cell metabolism. As ribosomal genes (rDNA) are organized in repeated clusters on chromosomes 13, 14, 15, 21, and 22, trisomy of chromosome 21 confers an excess of rDNA copies to ...
Francesco Ravaioli +26 more
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RNA INTERFERNCE (RNAI) FOR SOME GENES FROM BABESIA BOVIS [PDF]
Research Journal of Applied Biotechnology, 2016 Babesia parasites are responsible for enormous economic losses to the livestock industry worldwide. There is no vaccine available to protect from the infection.
Ikuo Igarashi +2 more
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Regulation of ribosomal DNA transcription by insulin [PDF]
American Journal of Physiology-Cell Physiology, 1998 The experiments reported here used 3T6-Swiss albino mouse fibroblasts and H4-II-E-C3 rat hepatoma cells as model systems to examine the mechanism(s) through which insulin regulates rDNA transcription. Serum starvation of 3T6 cells for 72 h resulted in a marked reduction in rDNA transcription.
K M, Hannan +2 more
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Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment
Molecular Oncology, EarlyView.This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley +1 more source
Loss of IGF‐1R impairs DNA‐PKcs recruitment to chromatin leading to defective end‐joining
Molecular Oncology, EarlyView.IGF‐1R promotes radioresistance by facilitating DNA‐PKcs recruitment to chromatin, enabling non‐homologous end‐joining (NHEJ) repair of double‐strand breaks. Inhibition or loss of IGF‐1R disrupts this recruitment to damage sites, driving compensatory reliance on microhomology‐mediated end‐joining (MMEJ) repair.
Matthew O. Ellis +3 more
wiley +1 more source
Evaluation of COI and ITS2 sequences ability to distinguish Lysiphlebus fabarum and Lysiphlebus confusus (Hymenoptera: Aphidiidae) [PDF]
نامه انجمن حشرهشناسی ایران, 2012 All wasp species in the genus Lysiphlebus Förster are solitary endoparasitoids of aphids andconsidered a taxonomically difficult group. In this study a part of COI and ITS2 was used to distinguishtwo closely related species L.
M. M. Sohani +3 more
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