RGD Reference Report - Combining distinctive and novel loci doubles BP reduction, reverses diastolic dysfunction and mitigates LV hypertrophy. - Rat Genome Database

Send us a Message



 Submit Data |  Help |  Video Tutorials |  News |  Publications |  Download |  REST API |  Citing RGD |  Contact   
Search RGD Grant Resources Citing RGD About Us Contact Us
Genes QTLs Strains Markers Genome Information Ontologies Cell Lines References Download Submit Data
OntoMate (Literature Search) JBrowse (Genome Browser) Synteny Browser (VCMap)  (beta) Variant Visualizer Multi-Ontology Enrichment (MOET) Gene-Ortholog Location Finder (GOLF) InterViewer (Protein-Protein Interactions) PhenoMiner (Quatitative Phenotypes) Gene Annotator OLGA (Gene List Generator) AllianceMine GViewer (Genome Viewer) Overgo Probe Designer
Aging & Age-Related Disease Cancer & Neoplastic Disease Cardiovascular Disease COVID-19 Developmental Disease Diabetes Hematologic Disease Immune & Inflammatory Disease Infectious Disease Liver Disease Neurological Disease Obesity & Metabolic Syndrome Renal Disease Respiratory Disease Sensory Organ Disease
Find Models   new Genetic Models Autism Models Rat PhenoMiner (Quantitative Phenotypes) Chinchilla PhenoMiner Expected Ranges (Quantitative Phenotype) PhenoMiner Term Comparison Hybrid Rat Diversity Panel Phenotypes GERRC (Gene Editing Rat Resource Center) Phenotypes in Other Animal Models Animal Husbandry Strain Medical Records Phylogenetics Strain Availability Calendar Rats 101 Submissions Photo Archive
Pathways
Rat Community Forum Directory of Rat Laboratories Video Tutorials News RGD Publications RGD Poster Archive Nomenclature Guidelines Resource Links Laboratory Resources Employment Resources

Combining distinctive and novel loci doubles BP reduction, reverses diastolic dysfunction and mitigates LV hypertrophy.

Authors: Crespo, K  Chauvet, C  Menard, A  Roy, J  Shi, Y  Gelinas, D  Duval, F  L'heureux, N  Nattel, S  Tardif, JC  Deng, AY 
Citation: Crespo K, etal., J Hypertens. 2013 May;31(5):927-35. doi: 10.1097/HJH.0b013e32835edc7e.
RGD ID: 8657131
Pubmed: PMID:23442991   (View Abstract at PubMed)
DOI: DOI:10.1097/HJH.0b013e32835edc7e   (Journal Full-text)

OBJECTIVES: Diastolic dysfunction often represents the onset of diastolic heart failure (DHF). We previously showed in principle that diastolic function in Dahl salt-sensitive rats (DSS) can be genetically determined by quantitative trait loci (QTLs) that also modulate blood pressure (BP). METHODS: We analyzed cardiac phenotypes of four 'single' congenic strains by echocardiography, in which a specific DSS chromosome segment was replaced by its normotensive Lewis homologue. RESULTS: Two of the strains permanently lowered BP, and but attenuated diastolic dysfunction only in rats at 10 weeks of age, not at 15 weeks fed on a 2% NaCl diet starting from 8 weeks of age. We then combined multiple QTLs by integrating several 'single' congenic strains. As a result, BP was greatly reduced. Cardiac dysfunction and LV hypertrophy were continuously improved from 10 to 15 weeks, although the degree and timing of the improvement varied among different congenic combinations. CONCLUSION: Distinct QTLs exist that simultaneously modulate BP and diastolic function. These QTLs, in combination, synergistically lowered BP and permanently alleviated or reversed diastolic dysfunction. The genes that are contained in the congenic strains affecting diastolic function are not known for their specific influence on BP. Novel long-term strategies of prognosis, diagnosis and therapy for hypertensive DHF appear from this work.



Disease Annotations    

Phenotype Annotations    

Phenotype Values via PhenoMiner     Click to see Annotation Detail View
Options:  View chart  |  Download data table  |  View expanded data table  |  Show All Strains Clinical Measurement

Strains with Phenominer Data Strains with phenominer dataStrains with phenominer data
SS.LEW-(D10Chm280-D10Chm216)/Ayd SS.LEW-(D17Chm131-D17Chm93)/Ayd SS.MNS-(D2Rat155-D2Chm161)/Ayd

Objects referenced in this article
Strain LEW/NHsd null Rattus norvegicus

Additional Information