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  • 1
    ISSN: 1432-1440
    Keywords: Coronary heart disease ; Epidemiology ; China ; Japan ; Germany
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In Asia coronary heart disease mortality is almost 10 fold less frequent than in European countries. These findings attract interest to search for different risk factor patterns. From 1982 to 1985 epidemiologic surveys were carried out in China (n=2047), Japan (n=7580) and Germany (n=6052). Healthy, male subjects, aged 30 to 59 years were enrolled. The prevalence rate of hypertension for the Germans was 20% versus 18% for the Japanese, and 11% for the Chinese. About 69% of Chinese, 55% of Japanese, and 37% of Germans were smokers. About 66% of the Germans were overweight (BMI〉25), 17% of the Japanese, and 11% of the Chinese. The highest risk group with cholesterol levels of 〉300 mg/dl included no Chinese subject, 0.1% of the Japanese, but 5% of the Germans. The lipoprotein profiles among the Japanese and the Chinese collectives typically showed antiatherosclerotic characteristics, whereas most Germans exhibited profiles which support development of atherosclerosis. About 36% of the participants from Germany showed 3 or more risk factors accumulated per person (Japan and China 5%). Multifactorial risk factor reduction for Germany is recommended.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-1440
    Keywords: Myocardial infarction ; Coronary heart disease ; Cardiovascular diseases ; China ; Risk factors ; Triglycerides ; Hypertension ; Smoking ; Diet ; Lipoproteins
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Some 2045 male Chinese industrial workers aged 40–59 years living in the city of Wuhan in the People's Republic of China were examined for coronary risk factors in the year 1983. The investigation included a patient history, clinical examination, and ECG and laboratory tests, with special attention to serum lipids. After 5 years, a follow-up investigation of the study group was carried out. The results were compared to the similarly designed German GRIPS project. In comparison to the German population, significantly lower levels for total-, LDL-, and VLDL-cholesterol, apolipoprotein B, triglycerides, uric acid, body mass index, and diastolic blood pressure were found in China. The percentage of smokers, however, was remarkably higher in China than in the Federal Republic of Germany. During the 5 year observation period in the Chinese sample, four subjects suffered from sudden death and four from nonfatal myocardial infarction; in the German study group three times as many fatal myocardial infarction and cases of sudden death and 7.5 times as many nonfatal myocardial infarctions were recorded. Nonfatal coronary heart disease and peripheral vascular disease were also observed less often in China. The incidence of cerebrovascular diseases was 1.5 times higher in China than in Germany. Whereas in Germany, total-, and LDL-cholesterol values were the major distinguishing parameters between infarction and reference groups, in China these values have thus far had no significant influence on the level of risk. Instead in the Chinese incidence group, significantly higher levels for blood pressure, body mass index, uric acid, and the ratio LDL/HDL-cholesterol were found.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 72 (1994), S. 639-652 
    ISSN: 1432-1440
    Keywords: Lipoproteins ; Atherogenesis ; Arterial wall biology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-1440
    Keywords: Platelet-derived growth factor ; Inflammation ; Atherogenesis ; Wound healing ; Growth regulation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Platelet-derived growth factor (PDGF) is the principal mitogen for connective tissue-derived cells such as fibroblasts, smooth muscle cells, and glial cells. It is synthesized by a variety of cell types and the synthesis of PDGF and its receptors is tightly controlled. Accumulating evidence obtained in vitro and in vivo suggests that PDGF plays important roles in the pathogenesis of clinically important diseases such as atherogenesis and cancer. Moreover, PDGF is an important research tool to study the signal transmission pathway of growth factors and other hormones.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1432-1440
    Keywords: Thromboxane synthase ; Thromboxane ; Nicotine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Thromboxane, one of the major oxygenated arachidonic acid metabolites of human macrophages, is the most potent vasoconstricting and proaggregatory molecule known. In addition, thromboxane has been shown to be related to host defence mechanisms. We studied the effects of nicotine and its major metabolites on thromboxane formation using cultured macrophage-like cells (HL-60), microsomal assays and purified thromboxane synthase. In intact cells, nicotine, cotinine and methylnicotine at submicromolar concentrations inhibited the rate of conversion of both arachidonic acid and the unstable endoperoxide prostaglandin H2 into thromboxane but not into other eicosanoids. This indicates that nicotine selectively inhibits thromboxane synthase at concentrations that are readily observed in the circulation of smokers. Microsomal assays revealed that nicotine decreased the maximal velocity of thromboxane synthase without affecting the apparent affinity of the enzyme for its substrate. In contrast, no effect of nicotine on kinetic parameters of prostaglandin H synthase or prostacyclin synthase could be observed. Difference spectra, using purified thromboxane synthase, revealed that nicotine directly interacts with the enzyme, presumably by binding the nitrogen of the nicotine ring structure to the iron of the cytochrome P-450 component of thromboxane synthase.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    European journal of epidemiology 8 (1992), S. 1-2 
    ISSN: 1573-7284
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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