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[Oestrogen as a risk factor for the vascular system (author's transl)]
Insights
Elevated plasma estradiol levels in men are linked to coronary heart disease and renal failure. Higher estradiol may indicate vascular damage risk and affect metabolism and blood pressure.
Area of Science:
- Endocrinology
- Cardiovascular Medicine
- Nephrology
Background:
- Coronary heart disease (CHD) is a leading cause of mortality.
- The role of sex hormones, particularly estradiol, in male cardiovascular health is not fully understood.
- Renal failure can impact hormonal balance and cardiovascular risk.
Purpose of the Study:
- To investigate plasma estradiol and testosterone concentrations in men with and without coronary heart disease.
- To compare estradiol levels in men with coronary heart disease, healthy controls, and men with renal failure.
- To explore the relationship between estradiol levels and metabolic/hemodynamic factors.
Main Methods:
- Measurement of plasma estradiol and testosterone concentrations.
- Comparison of hormone levels across three groups: men with CHD, healthy controls, and men with renal failure.
- Correlation analysis between estradiol levels and glucose tolerance, lipoprotein ratios, and blood pressure.
Main Results:
- Men with angiographically proven coronary heart disease had significantly higher plasma estradiol concentrations than controls.
- Elevated estradiol levels were also observed in men with renal failure.
- Estradiol levels showed a relationship with glucose tolerance, beta-to-alpha-lipoprotein ratio, and blood pressure in both CHD patients and controls.
Conclusions:
- Elevated plasma estradiol in men may serve as an indicator of a constellation of vascular damage risk.
- Estradiol might contribute to abnormal carbohydrate and fat metabolism, potentially leading to hypertension and degenerative vascular lesions.
- Further research is warranted to elucidate the causal role of estradiol in these conditions.
Abstract:
Plasma oestradiol and testosterone concentrations were measured in 44 men with angiographically proven coronary heart disease, 66 men without evidence of coronary heart disease serving as control. Another group consisted of 28 men with renal failure. Those with coronary heart disease had a significantly higher oestradiol concentration than the control group. This increased value also was present in patients with renal failure. There was a relationship between the level of oestradiol on one hand and glucose tolerance, ratio of beta to alpha-lipoproteins and blood pressure, on the other, in both the patients with coronary heart disease and the healthy controls. These results indicate the oestradiol may in males be an indicator of a risk constellation of vascular damage. Perhaps, it may be the cause of an abnormal carbohydrate and fat metabolism, which then leads to hypertension and degenerative vascular lesions.