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Biomedical subjects

B Petersen

Publications and source records attributed to B Petersen.

At least 127 records · Page 7Linked to original sources
PubMed1977

Serum and erythrocyte magnesium in normal elderly danish people. Relationship to blood pressure and serum lipids.

Serum lipids, blood pressure, and magnesium levels in serum and erythrocytes have been measured in 73 men and women, aged 60. The purpose was to evaluate the relationship between the serum and erythrocyte magnesium and indicators of ischaemic heart disease. The results showed significant inverse correlations between serum magnesium levels and PB, and positive significant correlation between erythrocyte magnesium and serum cholesterol.

Age Factors↗
PubMed1977

Changes in serum levels of thyroxine and thyroxine-binding proteins (TBG, TBPA, ALBUMIN) induced by venous stasis.

Serum concentrations of thyroxine (T4), thyroxine-binding globulin (TBG), thyroxine-binding pre-albumin (TBPA) and albumin were determined in 21 healthy, young subjects before and after a brief venous stasis in two experiments: 1) 3 min stasis induced by a sphygmomanometer with constant pressure 20 mmHg above the diastolic blood pressure and 2) 2 min stasis induced by an arm tourniquet of rubber. In both experiments the serum T4 level was significantly rised (mean 9%) after venous compression. Increases of the same magnitude were observed for serum TBG, serum TBPA and serum albumin. The serum concentrations of the free constituents--sodium and creatinine--remained unchanged, whereas the haemoglobin concentration increased (mean 8%). This haemoconcentrating effect of venous stasis seemed to be more pronounced in females than in males. Our data emphasize the need for protein correction procedures when total serum T4 is measured.

Adult↗
PubMed1975

An easy procedure for in vivo estimation of protein binding and correction of elevated serum values induced by venous stasis.

Venous stasis augments the apparent concentrations of serum proteins. A theoretical mathematical model for the correction of serum protein-bound constituents is propounded and an easy procedure for such corrections described. It is suggested that the effect of venous stasis can also be utilized for in vivo estimation of the average protein binding. The hypotheses were tested in 19 epileptic patients. The results obtained by serum determinations of sodium, magnesium, calcium and phenytoin indicate the validity of the theories.

Adolescent↗