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Expression data from uninephrectomized dogs compared to sham operated dogs

ABSTRACT: Renal insufficiency is a risk factor for development of cardiovascular disease. In this study our aim was to investigate functional and structural changes in the heart of dogs with mild renal insufficiency induced by uninephrectomy (UNX). In addition to comprehensively assessing functional parameters 12 week after UNX or sham surgery, we harvested tissue for assessment of structural changes. Microarray analyses were performed on snap frosen tissue from the left atrium (LA) and left ventricle (LV) of UNX and sham operated animals. Gene expression in LA was compared between the groups, and gene expression in the LV was compared between the groups. We aimed to assess whether a potentially altered gene expression in the heart of the UNX group also included genes associated with cardiac remodeling. Six dogs were assigned to unineprectomy and 6 dogs were assigned to sham operation. Microarray analyses were performed on 5 samples from the left atrium of uninephrectomized animals and on 5 samples from the left atrium of sham operated animals. Further, microarray analyses were performed on 5 samples from the left ventricle of uninephcretomized animals and on 5 samples from the left ventricle of sham operated animals. No replicates were perfomed.

ORGANISM(S): Canis lupus

SUBMITTER: John Burnett

PROVIDER: E-GEOD-47876 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Expression data from uninephrectomized dogs compared to sham operated dogs

Project description:Renal insufficiency is a risk factor for development of cardiovascular disease. In this study our aim was to investigate functional and structural changes in the heart of dogs with mild renal insufficiency induced by uninephrectomy (UNX). In addition to comprehensively assessing functional parameters 12 week after UNX or sham surgery, we harvested tissue for assessment of structural changes. Microarray analyses were performed on snap frosen tissue from the left atrium (LA) and left ventricle (LV) of UNX and sham operated animals. Gene expression in LA was compared between the groups, and gene expression in the LV was compared between the groups. We aimed to assess whether a potentially altered gene expression in the heart of the UNX group also included genes associated with cardiac remodeling.

2013-06-13 | GSE47876 | GEO

Expression data from murine cardiac fibroblasts and endothelial cells following Transverse Aortic Constriction

Project description:Accumulation of activated cardiac fibroblasts plays a key role in heart failure progression. These cells deposit excessive extracellular matrix that leads to mechanical stiffness, myocyte uncoupling and ischemia. To investigate whether two developmentally distinct cardiac fibroblast populations exhibit distinct expression profiles in response to cardiac injury, and therefore might necessitate distinct therapeutic targeting, we performed microarray analysis on FACS sorted cells. Tie2cre lineage traced CFs, non Tie2cre lineage traced cardiac fibroblasts and endothelial cells were isolated from left ventricle of SHAM operated and banded hearts at the onset of fibrosis, one week after surgery. We used microarrays to detail the global programme of gene expression in cardiac fibroblasts and endothelium following pressure overload. Tie2cre lineage traced, non-tie2cre lineage traced fibroblasts and endothelial cells were sorted from left ventricle of 3 SHAM operated and 3 TAC operated adult male Black Swiss mice. Tie2cre lineage traced, non-tie2cre lineage traced fibroblasts and endothelial cells were sorted from left ventricle of 3 SHAM operated and 3 Transaortic Constriction (TAC) operated adult male Black Swiss mice for RNA extraction and Affymetrix microarray analysis. Hypertrophy in TAC animals, an lack of hypertrophy in SHAM operated animals, was evaluated by hemodynamic measurements before surgery and one week after surgery. Cells were isolated one week after surgery.

2014-05-19 | E-GEOD-45820 | biostudies-arrayexpress

Serum and urinary proteomes between healthy dogs and dogs with renal dysfunction in babesiosis using label-based high-resolution quantitative proteomics

Project description:The aim of the study was to analyse differences in serum and urinary proteomes between healthy dogs and dogs with renal dysfunction in babesiosis using label-based high-resolution quantitative proteomic approach. In the study 8 healthy control dogs (group H) and 22 dogs with naturally occurring babesiosis were enrolled. Dogs with babesiosis were divided into 3 groups: group A consisted of 6 non-azotaemic dogs (serum creatinine <140 μmol/L) with normal UPC (UPC < 0.5), group B of 10 non-azotaemic dogs with proteinuria (UPC > 0.5) and group C of 6 azotaemic dogs (serum creatinine > 140 μmol/L) and significant proteinuria (UPC > 2).

2022-10-18 | PXD017263 | Pride

Somatic Mutation Patterns in Cloned Dogs: Implications for Aging

Project description:Studies on somatic mutations in cloned animals have revealed slight genetic variances between clones and their originals but have yet to identify the precise effects of these differences within the organism. Somatic mutations contribute to aging and are implicated in tumor development and other age-related diseases. To explore this, we compared whole genome sequencing data of an original dog with cloned dogs, identifying 8,155 candidate somatic mutations. By analyzing mutational signatures and rates within relevant genes, we identified potential associations with aging. Further analysis of 239 homozygous mutations within 189 genes revealed significant enrichment of traits related to chronotype, adult body size, height, spherical equivalent or myopia, and age at first sexual intercourse, suggesting these genes play roles in both growth and aging, as indicated by changes during adolescence.

2024-06-17 | E-MTAB-13924 | biostudies-arrayexpress

Gene expression profiling in Wistar male rat left ventricle with chronic and severe aortic valve regurgitation

Project description:Aortic valve regurgitation (AR) imposes a severe volume overload to the left ventricle (LV) which results in dilation, eccentric hypertrophy and eventually loss of function. Little is known about the impact of AR on LV gene expression. We therefore conducted a gene expression profiling study in the LV of male Wistar rats with chronic (9 months) and severe AR. Five male Wistar rats had one or two aortic valve leaflets punctured with a catheter under echocardiographic guidance in order to induce severe regurgitation (>65% of blood regurgitating during diastole from the aorta to the left ventricle). Five additional rats were sham-operated. The animals were sacrificed 9 months after the procedure and their left ventricle collected for RNA extraction and microarray analysis.

2010-04-13 | E-GEOD-17050 | biostudies-arrayexpress

Urinary proteins in dogs suffering leishmaniasis

Project description:This study is aimed at the description of the urinary proteome of dogs with of glomerulonephritis secondary to leishmaniasis, compare it with human proteome and identify possible new biomarkers for glomerular disease in leishmaniasis

2022-08-11 | PXD029165 | Pride

Expression data from murine cardiac fibroblasts and endothelial cells following Transverse Aortic Constriction

2014-05-19 | GSE45820 | GEO

Expression data from growth restricted fetal rat pancreatic islets

Project description:Intrauterine growth restriction is a common complication of pregnancy. We induce IUGR in rats by bilateral uterine artery ligation at e18 of a 23 day gestation. This mimics placental insufficiency. This array experiment compares gene expression changes in isolated pancreatic islets from e19, 24 hours post-surgery , or sham operated animals. RNA from isolated pancreatic islets from e19 fetuses, pooled from an entire litter. There are 4 control (sham) operated litters and 4 IUGR litters.

2013-07-10 | E-GEOD-48655 | biostudies-arrayexpress

Baylor-vaccine-mice-heart-tissue-positive-03-17-2021-all-6-organ

Project description:Female mice aged 6-7 weeks old were infected with the T. cruzi H1 strain. Mice were randomly divided into groups with 15 animals in each, with age matched naïve mice included as controls. Approximately 75 days post infection, mice were randomly divided into groups and treated with different treatment combinations: BNZ + Tc24 therapeutic vaccine + the STAT-3 inhibitor TTI-101, BNZ + Tc24 vaccine, and BNZ or TTI alone. Mice were humanely euthanized at 50, 75, 120 or 142 days post infection (DPI), and hearts samples were collected, divided into left atrium (LA), right atrium (RA), left ventricle top (LVT), left ventricle bottom (LVB), right ventricle top (RVT), right ventricle bottom (RVB). Heart tissue samples were extracted by 1:1 (v/v) methanol to water for aqueous phase and 3:1 (v/v) dichloromethane to methanol for organic phase. LC-MS/MS data acquisition was performed on a Q Exactive Plus Hybrid Quadrupole-Orbitrap Mass Spectrometer coupled to a Thermo Scientific Vanquish UHPLC with 1.7 um 100 Å Kinetex C8 column at 40°C. Mobile phase A was water with 0.1% (v/v) formic acid and mobile phase B was acetonitrile with 0.1% (v/v) formic acid.

2021-05-13 | MSV000087427 | MassIVE

Gene expression profiling in left cardiac ventricles of C57Bl/6J and C57Bl/6N male mice treated for 48 h with angiotensin II 500 ng/kg/min.

Project description:Analysis of angiotensin II effect on left ventricle at gene expression level. The hypothesis tested in the present study was that angiotensin II treatment may affect gene expression in left ventricle in a strain specific manner. Results provide important information about which genes respond to angiotensin II in C57Bl/6N male mice compared to their C57Bl/6J counterparts. Total RNA obtained from isolated left ventricles from C57Bl/6J and C57Bl/6N mice subjected to 48 hours of angiotensin II infusion, via osmotic mini-pumps (500ng/kg/h) implanted sub-cutaneously, compared to sham operated controls.

2014-12-12 | E-GEOD-53269 | biostudies-arrayexpress

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