Project description:This SuperSeries is composed of the following subset Series: GSE41706: Expression data from adult (9 month-old) hearts from GRK2 heterozygous C57BL/6J mice and its wild type littermates GSE41807: Expression data from adult (9 month-old) and young (4 month-old) hearts from C57BL/6J mice GSE41808: Expression data from adult (9 month-old) and young (4 month-old) hearts from GRK2 heterozygous C57BL/6J mice. GSE41809: Expression data from young (4 month-old) hearts from GRK2 heterozygous C57BL/6J mice and its wild type littermates Refer to individual Series
Project description:G protein-coupled receptor kinase 2 (GRK2) has emerged as a key regulator of cardiac function and myocardial structure. Cardiac GRK2 is increased in heart failure and ischemia in humans, whereas genetic inhibition of GRK2 is cardioprotective in animal models of these pathologies. However, the mechanistic basis underlying these effects are not fully understood. We have used adult GRK2 hemizygous mice (GRK2+/-) as a model to assess the effects of a sustained systemic inhibition of GRK2 in heart tissue with age. We used microarrays to determine the global programme of gene expression underlying cardioprotection in GRK2 hemizygous mice with age. 9 month-old and 4 month-old mice hearts were collected for RNA extraction and hybridization on Affymetrix microarrays.
Project description:G protein-coupled receptor kinase 2 (GRK2) has emerged as a key regulator of cardiac function and myocardial structure. Cardiac GRK2 is increased in heart failure and ischemia in humans, whereas genetic inhibition of GRK2 is cardioprotective in animal models of these pathologies. However, the mechanistic basis underlying these effects are not fully understood. We have used adult GRK2 hemizygous mice (GRK2+/-) as a model to assess the effects of a sustained systemic inhibition of GRK2 in heart tissue with age. We used microarrays to determine the global programme of gene expression underlying cardioprotection with age in GRK2 hemizygous mice in comparation with their wild-type littermates. 9 month-old and 4 month-old mice hearts were collected for RNA extraction and hybridization on Affymetrix microarrays.
Project description:G protein-coupled receptor kinase 2 (GRK2) has emerged as a key regulator of cardiac function and myocardial structure. Cardiac GRK2 is increased in heart failure and ischemia in humans, whereas genetic inhibition of GRK2 is cardioprotective in animal models of these pathologies. However, the mechanistic basis underlying these effects are not fully understood. We have used adult GRK2 hemizygous mice (GRK2+/-) as a model to assess the effects of a sustained systemic inhibition of GRK2 in heart tissue with age. We used microarrays to determine the global programme of gene expression underlying cardioprotection in GRK2 hemizygous mice. 9 month-old mice hearts were collected for RNA extraction and hybridization on Affymetrix microarrays.
Project description:G protein-coupled receptor kinase 2 (GRK2) has emerged as a key regulator of cardiac function and myocardial structure. Cardiac GRK2 is increased in heart failure and ischemia in humans, whereas genetic inhibition of GRK2 is cardioprotective in animal models of these pathologies. However, the mechanistic basis underlying these effects are not fully understood. We have used adult GRK2 hemizygous mice (GRK2+/-) as a model to assess the effects of a sustained systemic inhibition of GRK2 in heart tissue with age. We used microarrays to determine the global programme of gene expression underlying cardioprotection in GRK2 hemizygous mice. 4 month-old mice hearts were collected for RNA extraction and hybridization on Affymetrix microarrays.
Project description:Label-free quantitative top-down proteomics was performed on mitochondrial lysate isolated from the hearts of 3 young (4-month-old) and 3 old (24-25-month-old) mice.
Project description:Platelets were isolated from standard-housed and exercising (4 days and 28 days) 18-month-old C57BL/6J mice and mass spectrometry performed. This analysis revealed differential proteomic signatures between platelets from exercsising and standard-housed mice.
