Chromosomal mapping of the genetic basis of hypertension and renal disease in FHH rats

David L. Mattson, Melinda R. Dwinell, Andrew S. Greene, Anne E. Kwitek, Richard J. Roman, Allen W. Cowley, Howard J. Jacob

Research output: Contribution to journalArticle

Abstract

This study examined the genetic basis for hypertension and renal disease phenotypes in Fawn Hooded hypertensive (FHH) rats using chromosome substitution strains (consomic rats) in which each of the 20 autosomes as well as the X and Y chromosomes were transferred from the normal Brown Norway (BN) rat onto the FHH genetic background. Male and female rats of each of the parental and consomic strains were maintained for 2 wk on high-salt (8.0% NaCl) chow with N G-nitro-L-arginine methyl ester (L-NAME) in the drinking water (12.5 mg/l) to induce hypertension and renal disease. Mean arterial blood pressure (MAP) was significantly higher (by over 60 mmHg) in the male FHH compared with BN rats. Urinary protein and albumin excretion rates were increased by 15- and 40-fold, respectively, in the male FHH compared with the BN. Plasma renin activity was 10-fold higher in the FHH than the BN. Similar significant differences were observed between the female FHH and BN, but the degree of hypertension and proteinuria was of a lesser magnitude. Substitution of chromosome 20 from the BN to the FHH attenuated the development of L-NAME-induced hypertension, normalized plasma renin activity, and decreased plasma creatinine in male rats. In female rats, substitution of chromosome 15 decreased MAP and urinary protein excretion. Urinary excretion of albumin in males was decreased by substitution of chromosomes 1, 15, 16, and 18 from the BN into the FHH genetic background. The present data indicate that genes that can modify L-NAME-induced hypertension and proteinuria are on chromosomes 1, 15, 16, 18, and 20.

Original languageEnglish (US)
Pages (from-to)F1905-F1914
JournalAmerican Journal of Physiology - Renal Physiology
Volume293
Issue number6
DOIs
StatePublished - Dec 1 2007
Externally publishedYes

Fingerprint

Renal Hypertension
Norway
NG-Nitroarginine Methyl Ester
Chromosomes, Human, Pair 15
Arterial Pressure
Chromosomes, Human, Pair 1
Hypertension
Proteinuria
Renin
Albumins
Chromosomes, Human, Pair 20
Y Chromosome
X Chromosome
Drinking Water
Creatinine
Proteins
Salts
Chromosomes
Phenotype
Genes

Keywords

  • Consomic
  • Kidney disease
  • L-NAME

ASJC Scopus subject areas

  • Physiology
  • Urology

Cite this

Mattson, D. L., Dwinell, M. R., Greene, A. S., Kwitek, A. E., Roman, R. J., Cowley, A. W., & Jacob, H. J. (2007). Chromosomal mapping of the genetic basis of hypertension and renal disease in FHH rats. American Journal of Physiology - Renal Physiology, 293(6), F1905-F1914. https://doi.org/10.1152/ajprenal.00012.2007

Chromosomal mapping of the genetic basis of hypertension and renal disease in FHH rats. / Mattson, David L.; Dwinell, Melinda R.; Greene, Andrew S.; Kwitek, Anne E.; Roman, Richard J.; Cowley, Allen W.; Jacob, Howard J.

In: American Journal of Physiology - Renal Physiology, Vol. 293, No. 6, 01.12.2007, p. F1905-F1914.

Research output: Contribution to journalArticle

Mattson, DL, Dwinell, MR, Greene, AS, Kwitek, AE, Roman, RJ, Cowley, AW & Jacob, HJ 2007, 'Chromosomal mapping of the genetic basis of hypertension and renal disease in FHH rats', American Journal of Physiology - Renal Physiology, vol. 293, no. 6, pp. F1905-F1914. https://doi.org/10.1152/ajprenal.00012.2007
Mattson, David L. ; Dwinell, Melinda R. ; Greene, Andrew S. ; Kwitek, Anne E. ; Roman, Richard J. ; Cowley, Allen W. ; Jacob, Howard J. / Chromosomal mapping of the genetic basis of hypertension and renal disease in FHH rats. In: American Journal of Physiology - Renal Physiology. 2007 ; Vol. 293, No. 6. pp. F1905-F1914.
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