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Transcriptomic analysis of breast cancer

ABSTRACT: Transcriptomic analysis of fresh breast cancer tissue versus normal tissues. The Study comprising 45 Saudi-Arabian subjects was designed to take advantage of transcriptomics to prospectively explore the roles of lifestyle and genetic susceptibility in the occurrence of breast cancer.

ORGANISM(S): Homo sapiens

PROVIDER: GSE36295 | GEO | 2014/04/15

SECONDARY ACCESSION(S): PRJNA153031

REPOSITORIES: GEO

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Transcriptomic analysis of breast cancer

Project description:Transcriptomic analysis of fresh breast cancer tissue versus normal tissues. The Study comprising 45 Saudi-Arabian subjects was designed to take advantage of transcriptomics to prospectively explore the roles of lifestyle and genetic susceptibility in the occurrence of breast cancer. Total RNA isolated from 45 surgically resected breast cancer tissues and 8 healthy breast tissues (3 from Affymetrix) and purified, labeled, and hybridized to Affymetrix Human Gene 1.0 ST Array.

2014-04-15 | E-GEOD-36295 | biostudies-arrayexpress

SARS-CoV-2 samples from Saudi Arabia

Project description:Saudi Arabian SARS-CoV-2 genomes

| PRJEB45515 | ENA

Project description:Microbiome associated with the gut of Saudi Arabian forager bees

| PRJNA694427 | ENA

Single cell RNA-sequencing of the human synovium in inflammatory arthritis

Project description:The study presents: - an optimized synovium dissociation protocol for single cell RNA-sequencing studies of the human synovium. The protocol enables the isolation of high yield of viable synovial cells from prospectively collected fresh synovial biopsies from patients with inflammatory arthritis with a minimal sample droupout. The protocol is derived from the method for dissociation of cryopreserved synovia published by Donlin and colleagues (Arthritis Res. Ther. 2019). - a reference single-cell atlas of fresh human synovium in inflammatory arthritis, comprising more than 100´000 unsorted synovial scRNA-seq profiles from 27 freshly dissociated synovia of patients with different types of inflammatory arthritis. The synovial cells segregate into ten lymphoid, 14 myeloid and 17 stromal synovial cell populations and subpopulations, including synovial neutrophils, representing broadly representing the cellular heterogeneity and composition of the human synovium in inflammatory arthritis.

2024-04-21 | E-MTAB-11791 | biostudies-arrayexpress

Genome-wide characterization of Arabian Peninsula populations

Project description:The screening of 741,000 variants in 420 individuals from Arabian Peninsula (100 from Saudi Arabia, 100 from Yemen, 100 from Oman and 120 from UAE) and 80 individuals from Iran.

| EGAS00001003335 | EGA

Protein expression plasticity contributes to heat and drought tolerance of date palm

Project description:Climate change is increasing the frequency and intensity of warming and drought periods around the globe, currently representing a threat to many plant species. Understanding the resistance and resilience of plants to climate change is, therefore, urgently needed. As date palm (Phoenix dactylifera) evolved adaptation mechanisms to a xeric environment and is able to tolerate large diurnal and seasonal temperature fluctuations, we studied the protein expression changes in their leaves, volatile organic compound emissions, and photosynthesis in response to variable growth temperatures and soil water deprivation. Plants were grown under controlled environmental conditions under simulated Saudi Arabian summer and winter climates followed by drought stress. We show that date palm is able to counteract the harsh conditions of the Arabian Peninsula by adjusting the abundances of proteins related to the photosynthetic machinery, abiotic stress and secondary metabolism. Under summer climate and water deprivation, these adjustments included efficient protein expression response mediated by heat shock proteins and the antioxidant system to counteract reactive oxygen species formation. Proteins related to secondary metabolism were downregulated, except for the P. dactylifera isoprene synthase (PdIspS), which was strongly upregulated in response to summer climate and drought. This study reports for the first time, the identification and functional characterization of the gene encoding for PdIspS, allowing future analysis of isoprene functions in date palm under extreme environments. Overall, the current results show that protein reprogramming of date palm leaves contribute to heat and drought tolerance. We conclude that the protein plasticity of date palm is one important mechanism of molecular adaptation to remarkable environmental fluctuations.

2022-02-16 | PXD021666 | Pride

Groundwater quality and food safety

Project description:Assessing the groundwater quality at a Saudi Arabian agricultural site and the occurrence of antibiotic-resistant opportunistic pathogens on irrigated food produce

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Application of Array CGH technique for the clinical diagnosis of developmental delay and congenital malformations in Saudi Arabia [244k]

Project description:Chromosomal imbalances are implicated in the etiology of developmental delay (DD) and congenital malformation (CM). We therefore conducted high resolution array comparative genomic hybridization (array CGH) of sixty three Saudi patients [11 by Agilent-001850/CGH1x244A and 52 by Agilent-014693/CGH2x400k] for investigating and understanding the genetic heterogeneity underlying DD/CM. A total of 76 disease associated copy number variants (CNVs) were detected in twenty four patients including 1p36, 1q21, 3p23, 6p24, 7q11, 8q24, 9q33, 10p14, 11p15, 11q12, 11q24, 13q21, 15q13, 16p13, 18q23, trisomy 18, 20q11, 21q22, 22q11.21, 47,XXY and 45,X0. The diagnosis rate of array CGH was 2.4 times higher than karyotyping.

2021-08-13 | GSE181995 | GEO

Application of Array CGH technique for the clinical diagnosis of developmental delay and congenital malformations in Saudi Arabia [400k]

2021-08-13 | GSE182081 | GEO

Studies on progenitor endothelial cells; exploring mechanisms for improvement of cardiovascular diseases

Project description:Transcriptomic analysis of primary CD34+ cells. CD34+ cell were induced in vitro with hypoxia (3 hours), high glucose and high glucose plus hypoxia. Subsequently, the effect of metformin (anti-diabetic drug) on all conditions was studied to take advantage of transcriptomics to prospectively explore the mechanism of this drug to reduce the risk of cardiovascular diseases in type II diabetic patients.

2016-02-24 | GSE46262 | GEO

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