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PubMed · 59074

Blood-lead and hypertension.

D G Beevers·E Erskine·M Robertson·A D Beattie·B C Campbell·A Goldberg·M R Moore·V M Hawthorne
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Abstract

Blood and tap-water lead levels were examined in 135 hypertensives and 135 age and sex matched normotensives. Among male hypertensives there was a significant excess of cases with high blood-lead levels and a similar but statistically non-significant trend was found amongst female hypertensives. A positive correlation was found between blood-lead and tap-water lead. It is concluded that in the West of Scotland high blood-pressure is associated with high blood-lead levels, which might explain the high prevalence of cardiovascular disease in the area.

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Blood PressureEnvironmental ExposureFemaleHumansHypertensionLeadMaleMiddle AgedScotlandWater SupplyJournal Article

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D G Beevers, E Erskine, M Robertson, A D Beattie, B C Campbell, A Goldberg, M R Moore, V M Hawthorne. 1976-07-03. Blood-lead and hypertension.. https://pubmed.ncbi.nlm.nih.gov/59074/

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[Influence of the albumin fraction in the plasma oncotic pressure (author's transl)].

This work analyzes the influence which albumin fraction exerts upon plasma oncotic pressure. With this objective three different groups were studied, each one of which was composed of subjects with identical total proteinemia and variable albuminemia. The first group: nine subjects with 6.2 g/100 ml proteinemia and albumin values between 3.2 and 3.8 g/100 ml; the second group: seven healthy subjects with 6.4 g/100 ml proteinemia and the level of albumina between 3 and 4 g/100 ml; the third group: subjects with proteinemia at 6.6 g/100 ml and extreme values of albumin between 3.1 and 4.3 g/100 ml. Plasma oncotic pressure was determined by means of an electronic osmometer, according to the described technique. With a proteinemia constant at 6.2 g/100 ml, a 0.6 percent fluctuation of the albumin concentration induced a variation in the plasma oncotic pressure of up to 20.4 per cent. In cases of proteinemia remaining constant at 6.4 g/100 ml, the oscillation of albumin levels between 3 and 4 g/100 ml represented a change in the plasmatic oncotic pressure of 32.58 per cent. In the third group, the influence of the albuminemia was lesser (23.1 per cent variability in the plasma oncotic pressure, with an oscillation of 1.2 g/100 ml in albuminemia). The existence of variable values of plasma oncotic pressure corresponding to cases with identical proteinemia and albuminemia, lead us to consider the powerful influence exerted upon the plasma oncotic pressure by other factors which affect the mass-structure and the electrical charges of proteins.

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