REGARDS: Reasons for Geographic and Racial Differences in Stroke Cardiorenal GWAS
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PROVIDER: PRJNA786046 | ENA |
REPOSITORIES: ENA
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Project description:REGARDS: Reasons for Geographic and Racial Differences in Stroke Cardiorenal GWAS
| PRJNA786045 | ENA
Project description:Collaborative Cohort of Cohorts for COVID-19 Research (C4R): REasons for Geographic and Racial Differences in Stroke (REGARDS)
| PRJNA837334 | ENA
Project description:Racial differences in the pathophysiology of atherothrombosis are poorly understood. We explored the function and transcriptome of platelets in healthy black (n=70) and white (n=84) subjects. Numerous differentially expressed (DE) RNAs were associated with both race and PAR4 reactivity, including phosphatidylcholine transfer protein (PCTP), and platelets from blacks expressed higher levels of PC-TP protein. Purified platellets were obtained from 154 healthy volunteers not taking blood thinning medication, suffering from blood diseases or otherwise excluded for health reasons. RNA was extracted and profiled on these subjects. Simultaneously, purified platelets were phenotyped using aggregation in response to stimulation with agonist. The agonist response scores and races as ewll as gene expression values on these individuals are provided.
2013-11-15 | E-GEOD-49921 | biostudies-arrayexpress
Project description:Acute cardiorenal syndrome (CRS-1) is a morbid complication of acute cardiovascular disease. Mechanistic investigations have focused on intrarenal cellular signaling induced by ischemia/reperfusion. Additional cardiorenal connector signals have been postulated, but investigation in CRS-1 has been limited by a paucity of animal models and technical limitations precluding discovery studies of glomerular filtrate. To address these limitations, we developed a translational model of CRS-1, cardiac arrest and cardiopulmonary resuscitation (CA/CPR) in mice. Quantitative proteomics using isobaric tagging (10-plex TMT reagents, Thermo Fisher) was performed on 24h urine collections from mice with deficient tubular endocytosis and from littermate controls, before and after CA/CPR. Data acquisition used the SPS MS3 method on a Thermo Fusion Tribrid mass spectrometer for accurate reporter ion signals. The findings confirmed CA/CPR-specific cardiac proteins in urine and identified a novel CA/CPR-specific filtrate component: Cardiac LIM protein (CSRP3).
2019-02-27 | PXD012193 | Pride
Project description:Acute cardiorenal syndrome (CRS-1) is a morbid complication of acute cardiovascular disease. Mechanistic investigations have focused on intrarenal cellular signaling induced by ischemia/reperfusion. Additional signals, “cardiorenal connectors”, have been postulated, but investigation in CRS-1 has been limited by a paucity of animal models and technical limitations precluding discovery studies of glomerular filtrate. To address these limitations we developed a translational model of CRS-1, cardiac arrest and cardiopulmonary resuscitation (CA/CPR) and now report findings from a nanoscale mass spectrometry assay allowing proteomic exploration of Bowman’s space aspirate 2h after CA/CPR or sham procedure. Imaging, molecular weight and charge distribution, and minimal contribution of proteins from surrounding cell types confirmed the acquisition of filtrate. We detected filtration of low-molecular weight proteins specific to the heart following CA/CPR. Additional mass spectrometry performed on 24h urine collections from mice with deficient tubular endocytosis confirmed CA/CPR-specific cardiac protein filtration, and identified a novel, CA/CPR-specific, filtrate component: Cardiac LIM protein. Cardiac arrest-induced plasma release of Cardiac LIM protein occurred in mice and in critically-ill human cardiac arrest survivors and administration of recombinant cardiac LIM protein to mice altered renal function. Our findings demonstrate that glomerular filtrate is accessible to nanoscale proteomics and elucidate the population of proteins filtered 2h after acute cardiovascular crisis. The presence and identification of cardiac-specific proteins in renal filtrate suggest a potential novel signaling mechanism in CRS-1. We expect these findings to advance understanding of cardiorenal syndrome.
2019-02-27 | PXD012148 | Pride
Project description:Patients with combined heart and renal failure, also termed the cardiorenal syndrome (CRS), have high cardiovascular morbidity and mortality. Several key connectors between heart and kidney have been recognized, such as oxidative stress, inflammation, the renin-angiotensin system and the sympathetic nervous system. Monocytes are key players in the development of atherosclerosis and may act as a biosensor to detect changes in the systemic environment. Anemia, which occurs frequently in CRS, is partly due to an absolute and/or relative erythropoietin (EPO) deficiency. Until now, EPO treatment has largely been used to treat (renal) anemia, but recent research also showed beneficial non-hematopoietic effects such as anti-inflammatory and anti-oxidative capacities. The hypothesis of the present study was that monocyte gene expression profiles of cardiorenal patients compared to healthy controls reflect the systemic nature of CRS and are responsive to short-term treatment with Epo. The first aim was to investigate whether this short term treatment revealed non-hematopoietic EPO effects. The second aim was to address whether EPO dampens expression of genes involved in inflammation and oxidative stress. Given the variable response to EPO, the third aim was to test whether baseline gene expression profiles or the acute gene expression modulation by EPO are associated with EPO resistance.
2009-08-11 | GSE17582 | GEO
Project description:Geographic differences in mosquito microbiota
| PRJEB17886 | ENA
Project description:Chronic rhinosinusitis with nasal polyps is a hallmaerk disease in the field of upper airway immunity and chronic inflammation. Diverse inflammatory patterns between nasal polyps have been described in patients that hail from disparate racial and geographic backgrounds. However, it remains unclear whether these immunologic differences in nasal polyps between racial groups are driven by unique molecular mechanisms. We interrogated the gene expression profiles of nasal polyp tissues from Western (United States) and East Asian (Japan) descent, compared to ethmoid sinus tissue controls.
2021-12-15 | GSE179268 | GEO