RGD Reference Report - SYMPATHETIC REGULATION OF RENAL FUNCTION IN STROKE-PRONE SPONTANEOUSLY HYPERTENSIVE RATS CONGENIC FOR CHROMOSOME 1 BLOOD PRESSURE QUANTITATIVE TRAIT LOCI. - Rat Genome Database

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SYMPATHETIC REGULATION OF RENAL FUNCTION IN STROKE-PRONE SPONTANEOUSLY HYPERTENSIVE RATS CONGENIC FOR CHROMOSOME 1 BLOOD PRESSURE QUANTITATIVE TRAIT LOCI.

Authors: Wang, T  Takabatake, T  Kobayashi, Y  Nabika, T 
Citation: Wang T, etal., Clin Exp Pharmacol Physiol. 2008 Jun 18;.
RGD ID: 2296062
Pubmed: PMID:18565192   (View Abstract at PubMed)
DOI: DOI:10.1111/j.1440-1681.2008.04990.x   (Journal Full-text)

1. Two reciprocal congenic strains, WKYpch1.0 and SHRSPwch1.0, were constructed, respectively, by introgressing the stroke-prone spontaneously hypertensive rat (SHRSP)-derived fragment for the chromosome 1 blood pressure (BP) quantitative trait locus (QTL) into Wistar-Kyoto (WKY) rats and vice versa. 2. Under basal conditions with intact renal sympathetic nerves, the renal noradrenaline content and renal vascular resistance (RVR) were decreased in the order of SHRSP, SHRSPwch1.0, WKYpch1.0 and WKY, exhibiting reciprocal changes in the congenic strains according to the genotype of the chromosome 1 QTL. 3. Renal denervation resulted in significant effects on RVR and the fractional excretion of sodium only in SHRSP and WKYpch1.0, both of which harboured the SHRSP-derived fragment of chromosome 1 QTL. 4. Thus, chromosome 1 QTL may influence both renal sympathetic nervous activity and the regulatory role of the sympathetic nervous system in vascular and tubular functions. The reciprocal congenic strains are thereby unique models that may help in the search for intermediate phenotypes and empower functional deduction of candidate genes.

Phenotype Annotations    Click to see Annotation Detail View

Mammalian Phenotype

TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
decreased renal vascular resistance  IAGP 2296062after renal denervationRGD 
Objects Annotated

Strains
SHRSP/Izm  (NA)

Objects referenced in this article
Strain SHR/Izm null Rattus norvegicus
Strain SHRSP.WKY-(D1Wox29-D1Arb21)/Izm null Rattus norvegicus
Strain WKY.SHRSP-(D1Wox29-D1Arb21)/Izm null Rattus norvegicus
Strain WKY/Izm Wistar-Kyoto Rattus norvegicus

Additional Information