阳离子与血压之间关系的探讨

Study of the relationship between cations and blood pressure

大量流行病学调查结果表明钠摄入量与血压及脑血管病死亡率相关,但是,由于其他阳离子如钾、镁、钙亦可影响血压,各阳离子间还可产生相互作用,因而使钠与血压的关系复杂化了。本文目的旨在探讨我国南、北两地区人群尿中阳离子排泄量及其与血压的关系。对象与方法健康自愿受检者共2,008名,其中北京地区1,003名,男498名,女505名;福州地区1,005名,男504名,女501名。

Blood pressure was measured in the North and South of our country in 1,002 male and 1,006 female subjects.The 24-hour urinary excretion of sodium,potassium,calcium,magnesium and cr- eatinine was measured and the relationship between urinary cations and blood pressure was studi- ed.Both blood pressure and 24-hour sodium excretion were higher in Northern China than in So- uthern China.Urinary calcium was associated negatively with blood pressure whereas urinary ma- gnesium correlated positively with blood pressure.The Na/K-ratio associates positively with blood pressure and the Ca/Mg-ratio negatively.The study confirms the existence of a positive within- population relationship between sodium intake and blood pressure in Oriental populations.