19 research outputs found
Factors influencing urinary mercury concentration in schoolchildren
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[μλ¬Έ]Continuous exposure to low levels of heavy metals may result in bioaccumulation and adverse health effect in human. In several countries are doing biological monitoring to prevent heavy metals poisoning at occupational environment, and usually it is evaluating by concentration of blood, urine and hair. This study investigates urinary mercury concentration and the influence factor of urinary mercury from schoolchildren, and those factor examine doing how much influence in urinary mercury concentration.Urine sampling and questionnaire survey to 272 schoolchildren were taken October and November, 2003. Urine sample was spot urine, and construction of questionnaire was about sex, age, height, weight, passive smoking, dietary intake etc. Urinary mercury analysis used AAS(Shimadzu AAS-6800, Japan) attached by hydride vapor generator(Shimadzu HVG-1, Japan) for measuring. The variables, such as age, height, weight, dietary intake were considered as a potential influence factor of urinary mercury concentration. Statistical analysis of data were formed with the SPSS software package.Urinary mercury concentration was total average 2.88γ/g-ct, and it''s distribution was skewed to the right. Most children were showed below 5γ/g-ct, but some children were showed over 10γ/g-ct.According to multiple regression analysis between urinary mercury concentration and influence factor, it was observed statistically significant(p0.05). But fishing village''s boys(2.52γ/g-ct) were significantly high level than farming village''s boy(1.62γ/g-ct).In those results, in environmental epidemiology study estimating and influence of heavy metal elements caused by environmental pollution, potential determinants including these should be considered carefully, and need to continuous research and monitoring.ope
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Όλ¬Έ(μμ¬)--μμΈλνκ΅ λνμ :μνκ³Ό μ리νμ 곡,1995.Maste
Mechanism of protein kinase C mediated potentiation in the spontaneous contractions of guinea-pig stomach
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Όλ¬Έ(λ°μ¬)--μμΈλνκ΅ λνμ :μνκ³Ό μ리νμ 곡,2000.Docto