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A study of urinary sodium and potassium excretion rates among urban and rural Zulus and Indians.
J Hypertens. 1985 Aug; 3(4):351-8.JH

Abstract

A study was carried out to evaluate the relationship between blood pressure, plasma renin activity, serum aldosterone and patterns of urinary sodium and potassium excretion rates in urban Zulus, rural Zulus and Indians in order to explain the high prevalence of hypertension in the urban adult Zulu (25%) compared to the rural adult Zulu (10%). Urinary sodium and potassium were not significantly different between urban and rural Zulus. There was no association between sodium excretion and blood pressure. Urinary potassium correlated negatively with blood pressure in rural Zulus and Indians but not in urban Zulus. The urinary sodium:potassium ratio was significantly lower in rural Zulus than in urban Zulus. The sodium:potassium ratio of Indians was not significantly different from that of Zulus. Plasma renin activity levels were significantly lower in urban than in rural Zulus. This difference is an enigma but may be due to an environmental factor. Serum aldosterone correlated positively with plasma renin activity and negatively with the urinary sodium:potassium ratio.

Authors

Hoosen S
No affiliation info available
Seedat YK
No affiliation info available
Bhigjee AI
No affiliation info available
Neerahoo RM
No affiliation info available

MeSH

AdultAge FactorsAldosteroneBlack PeopleBlood PressureFemaleHumansHypertensionKineticsMaleMiddle AgedPotassiumReninRural PopulationSocioeconomic FactorsSodiumSouth AfricaUrban PopulationWhite People

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

3900199

Citation

Hoosen, S, et al. "A Study of Urinary Sodium and Potassium Excretion Rates Among Urban and Rural Zulus and Indians." Journal of Hypertension, vol. 3, no. 4, 1985, pp. 351-8.
Hoosen S, Seedat YK, Bhigjee AI, et al. A study of urinary sodium and potassium excretion rates among urban and rural Zulus and Indians. J Hypertens. 1985;3(4):351-8.
Hoosen, S., Seedat, Y. K., Bhigjee, A. I., & Neerahoo, R. M. (1985). A study of urinary sodium and potassium excretion rates among urban and rural Zulus and Indians. Journal of Hypertension, 3(4), 351-8.
Hoosen S, et al. A Study of Urinary Sodium and Potassium Excretion Rates Among Urban and Rural Zulus and Indians. J Hypertens. 1985;3(4):351-8. PubMed PMID: 3900199.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - A study of urinary sodium and potassium excretion rates among urban and rural Zulus and Indians. AU - Hoosen,S, AU - Seedat,Y K, AU - Bhigjee,A I, AU - Neerahoo,R M, PY - 1985/8/1/pubmed PY - 1985/8/1/medline PY - 1985/8/1/entrez SP - 351 EP - 8 JF - Journal of hypertension JO - J Hypertens VL - 3 IS - 4 N2 - A study was carried out to evaluate the relationship between blood pressure, plasma renin activity, serum aldosterone and patterns of urinary sodium and potassium excretion rates in urban Zulus, rural Zulus and Indians in order to explain the high prevalence of hypertension in the urban adult Zulu (25%) compared to the rural adult Zulu (10%). Urinary sodium and potassium were not significantly different between urban and rural Zulus. There was no association between sodium excretion and blood pressure. Urinary potassium correlated negatively with blood pressure in rural Zulus and Indians but not in urban Zulus. The urinary sodium:potassium ratio was significantly lower in rural Zulus than in urban Zulus. The sodium:potassium ratio of Indians was not significantly different from that of Zulus. Plasma renin activity levels were significantly lower in urban than in rural Zulus. This difference is an enigma but may be due to an environmental factor. Serum aldosterone correlated positively with plasma renin activity and negatively with the urinary sodium:potassium ratio. SN - 0263-6352 UR - https://www.unboundmedicine.com/medline/citation/3900199/A_study_of_urinary_sodium_and_potassium_excretion_rates_among_urban_and_rural_Zulus_and_Indians_ DB - PRIME DP - Unbound Medicine ER -