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. 1988 Mar 19;296(6625):814–816. doi: 10.1136/bmj.296.6625.814

Raised plasma intact parathyroid hormone concentrations in young people with mildly raised blood pressure

D E Grobbee, W H L Hackeng, J C Birkenhäger, A Hofman
PMCID: PMC2545104  PMID: 3130926

Abstract

To study the role of parathyroid gland activity in early primary hypertension plasma concentrations of intact parathyroid hormone were measured in 90 untreated young subjects, aged 16-29, with stable mildly raised blood pressure and in 40 normotensive control subjects selected from the same population in Zoetermeer, The Netherlands. Intact parathyroid hormone concentration was significantly higher in the hypertensive than the normotensive group (2.34 (SE 0.11) pmol/l v 1·47 (0·13)pmol/l, respectively; difference 0·87 pmol/l; 95% confidence interval 0·55 to 1·21; p<0·0001). Serum total calcium concentration was 2·36 (0·01) mmol/l in the hypertensive group and 2·42 (0·01) mmol/l in the normotensive group (difference 0·06 mmol/l; 95% confidence interval 0·02 to 0·09; p=0·02). Urinary calcium excretion over 24 hours did not differ significantly between the two groups (4·17 (0·28) mmol/24 h in the hypertensive group and 3·89 (0·39) mmol/24 h in the normotensive group; difference 0·28 mmol/24 h; 95% confidence interval -0·66 to 1·22). In the hypertensive group both systolic and diastolic blood pressures increased slightly though significantly with intact parathyroid hormone concentrations. No obvious associations between serum calcium concentration and blood pressure were observed.

These findings support the view that enhanced activity of the parathyroid gland may play a part in the early stage of primary hypertension.

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Selected References

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