Genetic determinants and renal mechanisms in essential hypertension

P. Manunta, L. Del Vecchio, K. Amar, G. Bianchi

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Human essential hypertension is a polygenic disease whose phenotypic expression is modulated by the environment. Though the kidney could play a major role in the initiation and maintainment of hypertension, many questions remain open. Rat models of primary hypertension provided the substantial information with experiments on kidney cross-transplantation, showing that at least a portion of hypertension could be transplanted with the kidney in all strains where such an experiment has been carried out. Data consistent with those of rats have also been obtained in humans. Many abnormalities in kidney function and cell membrane ion transport have been described in hypertensive rats and humans, but the logical sequence of events from a genetic-molecular abnormality to a cellular abnormality which causes hypertension via a modification of kidney function is difficult to prove. We established this sequence in Milan hypertensive rats using a variety of experimental techniques such as the study of isolated kidney and renal cell function, cell membrane ion transport, cross-immunisation with membrane proteins, molecular biology, genetic crosses and manipulation. Such study led to the identification of a polymorphism in the cytoskeletal protein adducin. Recently, α-adducin variants have been associated to both primary hypertension and salt sensitive hypertension. Finally, recent findings strongly support the hypothesis that adducin variants may affect kidney function by modulating the overall capacity of the tubular epithelial cells to transport ions through both a modification in the assembly of actin cytoskeleton, and a modulation of sodium pump activity.

Original languageEnglish
Pages (from-to)649-656
Number of pages8
JournalJournal of Human Hypertension
Volume10
Issue number10
Publication statusPublished - Jun 28 1996

Fingerprint

Kidney
Hypertension
Ion Transport
Molecular Biology
Genetic Crosses
Cell Membrane
Sodium-Potassium-Exchanging ATPase
Cytoskeletal Proteins
Essential Hypertension
Actin Cytoskeleton
Kidney Transplantation
Immunization
Membrane Proteins
Salts
Epithelial Cells
adducin

Keywords

  • Adducin locus
  • Cytoskeleton
  • DNA polymorphism
  • High blood pressure
  • Kidney
  • Sodium transport

ASJC Scopus subject areas

  • Internal Medicine

Cite this

Manunta, P., Del Vecchio, L., Amar, K., & Bianchi, G. (1996). Genetic determinants and renal mechanisms in essential hypertension. Journal of Human Hypertension, 10(10), 649-656.

Genetic determinants and renal mechanisms in essential hypertension. / Manunta, P.; Del Vecchio, L.; Amar, K.; Bianchi, G.

In: Journal of Human Hypertension, Vol. 10, No. 10, 28.06.1996, p. 649-656.

Research output: Contribution to journalArticle

Manunta, P, Del Vecchio, L, Amar, K & Bianchi, G 1996, 'Genetic determinants and renal mechanisms in essential hypertension', Journal of Human Hypertension, vol. 10, no. 10, pp. 649-656.
Manunta, P. ; Del Vecchio, L. ; Amar, K. ; Bianchi, G. / Genetic determinants and renal mechanisms in essential hypertension. In: Journal of Human Hypertension. 1996 ; Vol. 10, No. 10. pp. 649-656.
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