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Published on: August 28, 2018
Comparison of coronary atherosclerosis in middle-aged Norwegian and Japanese men. An autopsy study
Insights
Atherosclerosis and coronary heart disease prevalence significantly differed between middle-aged men in Oslo and Tokyo. Preventive strategies may reduce atherosclerosis development without negative socioeconomic impacts.
Area of Science:
- Cardiovascular pathology
- Epidemiology
- Public health
Background:
- Coronary heart disease (CHD) is a significant global health concern.
- Atherosclerosis, the underlying pathology of CHD, exhibits geographical variations.
- Risk factors like serum cholesterol, triglycerides, and blood pressure are implicated in CHD development.
Purpose of the Study:
- To compare the extent of coronary artery atherosclerosis between middle-aged men in Oslo, Norway, and Tokyo, Japan.
- To investigate the association between atherosclerosis and key cardiovascular risk factors in these populations.
Main Methods:
- Autopsy-based comparative study of coronary artery lesions.
- Analysis of available risk factor data (serum cholesterol, triglycerides, blood pressure) from autopsied individuals.
- Statistical comparison of atherosclerosis extent and risk factor levels between Oslo and Tokyo.
Main Results:
- Significant differences in the extent of atherosclerosis were observed between Oslo and Tokyo.
- These geographical differences in atherosclerosis correlated with variations in risk factor levels, notably serum cholesterol.
- Men in Oslo exhibited a greater extent of atherosclerosis compared to men in Tokyo.
Conclusions:
- Geographical variations in atherosclerosis and coronary heart disease are substantial.
- Serum cholesterol levels appear to be a key differentiating risk factor.
- Preventive measures targeting atherosclerosis could mitigate CHD without adverse socioeconomic consequences.
Abstract:
We compared the extent of lesions in the coronary arteries of autopsied middle-aged men from Oslo, Norway, with lesions in autopsied men of similar ages in Tokyo, Japan. Certain risk factors for coronary heart disease as serum cholesterol, triglycerides, and blood pressure were also available from these men in the two locations. Our comparisons reveal large differences in the extent of atherosclerosis between Oslo and Tokyo, which are reflected in the levels of the risk factors, particularly serum cholesterol levels. Our findings suggest that preventive strategies could retard the development of atherosclerosis and coronary heart disease without the economic and nutritional problems that affect technically underdeveloped societies where atherosclerosis and coronary heart disease are not prevalent.
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