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Ang II type 1a receptor in Marfan syndrome

ABSTRACT: Ang II type 1a receptor in Marfan syndrome

PROVIDER: PRJNA432050 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR6635830.fastq.gz	Fastqsanger.gz
	SRR6635831.fastq.gz	Fastqsanger.gz
	SRR6635823.fastq.gz	Fastqsanger.gz
	SRR6635824.fastq.gz	Fastqsanger.gz
	SRR6635825.fastq.gz	Fastqsanger.gz

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Ang II type 1a receptor in Marfan syndrome

Project description:Using Cdh5-Cre and Sm22-Cre transgenes to characterize the impact of disruption of the angiotensin II type 1a receptor (AT1ar) in vascular endothelial and smooth muscle cells, respectively, of wild type (WT) mice compared to fibrillin-1 hypomorphic mice (Fbn1mgR/mgR mice) that replicate early onset progressively severe Marfan syndrome (MFS) with dissecting thoracic aortic aneurysm (TAA).

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Project description:Background: Marfan syndrome (MFS) is a heritable connective tissue disorder caused by mutations in the fibrillin-1 gene. This syndrome constitutes a significant identifiable subtype of aortic aneurysmal disease, accounting for over 5% of ascending and thoracic aortic aneurysms. Results: We used spotted membrane DNA macroarrays to identify genes whose altered expression levels may contribute to the phenotype of the disease. Our analysis of 4132 genes identified a subset with significant expression differences between skin fibroblast cultures from unaffected controls versus cultures from affected individuals with known fibrillin-1 mutations. Subsequently, 10 genes were chosen for validation by quantitative RT-PCR. Conclusions: Differential expression of many of the validated genes was associated with MFS samples when an additional group of unaffected and MFS affected subjects were analyzed (p-value < 3 x 10-6 under the null hypothesis that expression levels in cultured fibroblasts are unaffected by MFS status). An unexpected observation was the range of individual gene expression. In unaffected control subjects, expression ranges exceeding 10 fold were seen in many of the genes selected for qRT-PCR validation. The variation in expression in the MFS affected subjects was even greater. Keywords: disease state comparison; Marfan syndrome; cultured skin fibroblasts

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Expression data from Angiotensin II (Ang II)-treated Rat Vascular Smooth Muscle Cells (RVSMC)

Project description:Angiotensin II (Ang II)-mediated vascular smooth muscle cells (VSMC) dysfunction plays a critical role in cardiovascular diseases. However, the gene expression in this process is unclear. We used Rat Affymetrix gene array to profile Ang II-regulated gene in RVSMC and evaluated their role in VSMC dysfunction. Examined 4 samples of Rat VSMC in triplicate. Control (without Ang II treatment) and 3 samples treated with Ang II for 6h, 12h, and 24h. Compared the changes in gene expression in Ang II treated samples relative to control samples.

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17 -estradiol impedes aortic root dilation and rupture in male Marfan mice

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