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Cardiovascular disease and trace metals.

A G Shaper
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Abstract

Cardiovascular disease is a major cause of morbidity and mortality in the U.K. and other developed countries. In the U.K., mortality from coronary heart disease has increased progressively over the past 25 years, particularly in males. This paper examines the possible role of trace metals in the development of cardiovascular disease, with particular reference to the effects of cobalt, cadmium and lead in myocardial disease, atherosclerosis and hypertension. It is concluded that cobalt is an unimportant factor in community levels of cardiovascular disease, that cadmium has striking effects on blood pressure in animals and that there is some evidence for an association between environmental lead and high blood pressure.

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Blood PressureCadmium PoisoningCardiovascular DiseasesCobaltEnvironmental PollutantsHumansLead PoisoningMetalsUnited KingdomJournal Article

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A G Shaper. 1979-07-18. Cardiovascular disease and trace metals.. https://doi.org/10.1098/rspb.1979.0054

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PubMed1979

[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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