In vivo evaluation of the 94 GHz-chronic exposure effect on Hairless rat skin gene expression [C2]
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PROVIDER: PRJNA549169 | ENA |
REPOSITORIES: ENA
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Project description:Millimeter waves are new broadband frequencies that start to be used in several applications such as future wireless communications, medical, and also non-lethal weapons (the 94-GHz band in Active Denial Systems). However, low information are available on their potential effects on human. These frequencies belong to radiofrequency and they have the property to be stopped by the first layer of the skin. Therefore our studies have aimed to evaluate 94 GHz effects on skin cells whole gene expression. Chronic long term 94 GHz MMW exposures were performed on two rat populations constituted by 17 young animals and 14 adult ones. Each group of animals were equally split in Exposed and Sham exposed subgroup. This two independent exposure experiments were conducted during 5 months, with rats exposed 3 h per day, 3 days per week, to an incident power density of 10 mW/cm², which correspond to twice the ICNIRP limit of exposure for professional. At the end of the experiment, skin explant were taken and RNA were extracted. Then, the modification of the whole gene expression were analyzed with gene expression microarray. Without modification of the animal’s temperature, long term chronic 94 GHz-MMW exposure did not significantly modify the rat’s skin gene expression on both young and adult rats.
2021-01-13 | GSE132817 | GEO
Project description:Millimeter waves are new broadband frequencies that start to be used in several applications such as future wireless communications, medical, and also non-lethal weapons (the 94-GHz band in Active Denial Systems). However, low information are available on their potential effects on human. These frequencies belong to radiofrequency and they have the property to be stopped by the first layer of the skin. Therefore our studies have aimed to evaluate 94 GHz effects on skin cells whole gene expression. Chronic long term 94 GHz MMW exposures were performed on two rat populations constituted by 17 young animals and 14 adult ones. Each group of animals were equally split in Exposed and Sham exposed subgroup. This two independent exposure experiments were conducted during 5 months, with rats exposed 3 h per day, 3 days per week, to an incident power density of 10 mW/cm², which correspond to twice the ICNIRP limit of exposure for professional. At the end of the experiment, skin explant were taken and RNA were extracted. Then, the modification of the whole gene expression were analyzed with gene expression microarray. Without modification of the animal’s temperature, long term chronic 94 GHz-MMW exposure did not significantly modify the rat’s skin gene expression on both young and adult rats.
2021-01-13 | GSE132816 | GEO
Project description:In vivo evaluation of the 94 GHz-chronic exposure effect on Hairless rat skin gene expression
| PRJNA549165 | ENA
Project description:In vivo evaluation of the 94 GHz-chronic exposure effect on Hairless rat skin gene expression [C1]
| PRJNA549168 | ENA
Project description:This SuperSeries is composed of the SubSeries listed below.
2021-01-13 | GSE132818 | GEO
Project description:Mucilaginibacter sp. 94 strain:94 Genome sequencing
| PRJNA463439 | ENA
Project description:Streptomyces sp. 94 strain:94 Genome sequencing
| PRJNA402579 | ENA
Project description:Several co-repressors interact directly with the DNA-binding protein CSL [Su(H) in Drosophila] and are proposed to keep target genes silenced in the absence of Notch activity. To investigate co-repressor activity in the context of this well defined signalling pathway, we analysed the genome-wide binding profile of the best-characterized CSL co-repressor in Drosophila, Hairless, in Kc cells and in wing imaginal discs. The binding profile in wing discs of a second CSL interacting repressor, SMRTER, was also analysed. There was significant overlap between Hairless and Su(H), both in Kc cells and in wing discs, where they were predominantly found in chromatin with active enhancer marks. The Hairless complex was widely present at some Notch regulated enhancers in the wing disc,but no binding was detected at others, indicating that it is not essential for silencing per se. Analysis of target enhancers confirmed differential requirements for Hairless. SMRTER binding significantly overlapped with Hairless, rather than complementing it, and many enhancers were apparently co-bound by both factors. Our analysis indicates that the actions of Hairless and SMRTER gate the enhancers to Notch activity and to Ecdysone signalling respectively, to ensure that the appropriate levels and timing of target gene expression are achieved.
2017-12-31 | GSE97597 | GEO
Project description:Acidovorax sp. 94 strain:94 Genome sequencing and assembly
| PRJNA442014 | ENA
Project description:Several co-repressors interact directly with the DNA-binding protein CSL [Su(H) in Drosophila] and are proposed to keep target genes silenced in the absence of Notch activity. To investigate co-repressor activity in the context of this well defined signalling pathway, we analysed the genome-wide binding profile of the best-characterized CSL co-repressor in Drosophila, Hairless, in Kc cells and in wing imaginal discs. The binding profile in wing discs of a second CSL interacting repressor, SMRTER, was also analysed. There was significant overlap between Hairless and Su(H), both in Kc cells and in wing discs, where they were predominantly found in chromatin with active enhancer marks. The Hairless complex was widely present at some Notch regulated enhancers in the wing disc,but no binding was detected at others, indicating that it is not essential for silencing per se. Analysis of target enhancers confirmed differential requirements for Hairless. SMRTER binding significantly overlapped with Hairless, rather than complementing it, and many enhancers were apparently co-bound by both factors. Our analysis indicates that the actions of Hairless and SMRTER gate the enhancers to Notch activity and to Ecdysone signalling respectively, to ensure that the appropriate levels and timing of target gene expression are achieved.
2017-12-31 | GSE97600 | GEO