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Biomedical subjects

J A Lima

Publications and source records attributed to J A Lima.

5 recordsLinked to original sources
PubMed1992

[The absence of risk factors for coronary disease in Yanomami Indians and the influence of acculturation on arterial pressure].

PURPOSE: To investigate the hypothesis that hypertension and coronary heart disease are "civilization diseases", analyzing the distribution of their antecedents in an Indian population and observing the influence of acculturation on blood pressure. METHODS: Seven hundred and twenty-five Yanomami Indians of both sexes, ages above 14 years, inhabitants of eight villages in Roraima and Amazonas states were examined. Measures related to all classical coronary risk factors were carried out and urine samples were collected to measure electrolytes. RESULTS: None of the known coronary risk factors were found. The blood pressure levels were low and did not increase with increasing age. There was influence of acculturation on blood pressure and it was in part mediated by increase in body weight and sodium intake. CONCLUSION: The absence of hypertension and other coronary risk factors and the increase of blood pressure with acculturation, among an isolated population, strongly suggest that these diseases are "civilization diseases".

Acculturation↗
PubMed1991

[Blood pressure in 6 Yanomami villages].

PURPOSE: To investigate in Yanomami Indians that not add salt to food, the relationship between blood pressure (BP), biological variables (age, body weight, height and pulse) and urinary electrolytes (Na+, K+, Ca++ and Mg++). PATIENT AND METHODS: We studied 125 males and 129 females from six villages on Surucuru plateau and on Catrimani and Ajarani rivers region in the state of Roraima, north Brazil. Two BP measurements were made and the mean of them were used in data analysis. RESULTS: None hypertensive was found. Systolic BP decreased with age and correlated with body weight, pulse and urinary Na+. Diastolic BP only correlated with body weight. Height, urinary K+, Ca++ and Mg++ did not correlate with BP. CONCLUSION: There was no hypertension nor increase of BP with increasing age in these isolated Yanomami.

Adolescent↗