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    Milk Pb, Cd, Zn, Cu, Mn Content and Their Interrelations from Shenyang Women
    沈阳市妇女乳汁铅、镉、锌、铜、含量及其相互关系
短句来源
    THE DETERMINATION OF TRACE ELEMENTS,Zn,Mn,Cu AND Fe IN HAIR OF MENTAL RETARDATION CHILDREN AND ITS CLINICAL SIGNIFICANCE
    智力低下儿童头发中微量元素锌、、铜和铁的测定及其临床意义
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    Investigetion on Level and Laws of Content on Cu, Zn, Mo, Cr (Ⅲ), Co and Mn in Grain of Kunming Area
    昆明地区主粮中铜、锌、钼、铬(Ⅲ)、钴、水平规律调查
短句来源
    Application of Trace Element Mn to Clinical Medicine
    微量元素在临床医学中的应用
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    Results The protein content and various mineral elements(P,Cu,Fe,Zn,Ca,Mn,Se) were 219 000,500,13.2,122.6,19.6,21.6,22.6,5.3 mg/kg in dry wild Boletus.
    结果野生牛肝菌蛋白质(N)含量为219 000 mg/kg、磷为500 mg/kg、铜为13.2 mg/kg、铁122.6 mg/kg、锌为19.6 mg/kg、钙为21.6 mg/kg、为22.6 mg/kg、硒为5.3 mg/kg。
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  “mn”译为未确定词的双语例句
    DETECTION ON THE MUTACENIC ACTIVITY OF PHOSPHONOACETIC ACID WITH AMES,MN AND SCE TESTS
    Ames,MN和SCE试验法检测膦乙酸的致诱变性
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    [Objective]To study the influential factors of inducing micronucleus(MN)frequency of mouse bone marrow by cyclophosphamide(CP),and decide the best combination of factors in orally for CP as positive control agent in MN test.
    [目的]研究环磷酰胺(Cyclophosphamide,CP)诱导小鼠骨髓细胞微核的影响因素,确定其在经口试验中作为阳性对照使用最佳组合。
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    Methods Chromosomal aberration and degree of DNA damage in peripheral blood lymphocytes were detected respectively by MN experiment and comet assay,the HSP70 level was measured by Western blot.
    方法用微核试验和碱性单细胞凝胶电泳技术(彗星试验)检测淋巴细胞的染色体畸变和DNA损伤情况,用蛋白印迹(western blot)法检测淋巴细胞HSP70表达水平。
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    Results The MN frequency and comet tail length in high exposure group were significantly higher than those in control group(P<0.05).
    结果外周血淋巴细胞微核率和彗星尾长在高暴露组显著高于对照组,差异有统计学意义(P<0.05);
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    Comparing to B(a)P treatment alone, the EROD levels and MN frequencies increased significantly in HepG2 cells treated with B(a)P and PCB126 (0.10,1.00 nmol/L) together(P<0.05,P<0.01).
    0.10、1.00nmol/L的PCB126和50μmol/L的B(a)P联合作用时,与B(a)P单独作用相比,CYP1A1酶活性和微核率均显著升高,差异有统计学意义(P<0.05,P<0.01)。
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  mn
In this note it is shown that a necessary and sufficient condition for the existence of a P3-factorization of complete multipartite graph λKmn is (1) m≥3, (2) mn≡0 (mod 3) and (3) λ(m-1)n≡0(mod 4).
      
Let Sn be the symmetric group, gi+=(123i), gi-=(li32) and Mn+={gi+∶4≤i≤n}, then Mn+ is a minimal generating set of Sn, where n≥5.
      
It is proved that Cayley graph Cay (Sn, Mn+∩Mn-) is Hamiltonian and edge symmetric.
      
Let Mn be a closed spacelike submanifold isometrically immersed in de Sitter space Spn+p (c).
      
Denote by R, H and S the normalized scalar curvature, the mean curvature and the square of the length of the second fundamental form of Mn, respectively.
      
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Ten elements (Sr, Pb, Zn, Cu, Ni, Fe, Mn, Cr, Ti, Ca) of more than one thousand human hair in Shanghai and Nanjing were determined by radioisotope excited energy dispersive X-ray fluorescence. Man's hair samples were cut to the scalp usi'ng stainless steel barbers' scissors, while women's hair samples were cut at the close end of hair strands. Hair samples were washed sequentially in water solution containing 5%"HAIAU" detergent, deionized water and then dried at 105℃.One gram hair sample was ashed at...

Ten elements (Sr, Pb, Zn, Cu, Ni, Fe, Mn, Cr, Ti, Ca) of more than one thousand human hair in Shanghai and Nanjing were determined by radioisotope excited energy dispersive X-ray fluorescence. Man's hair samples were cut to the scalp usi'ng stainless steel barbers' scissors, while women's hair samples were cut at the close end of hair strands. Hair samples were washed sequentially in water solution containing 5%"HAIAU" detergent, deionized water and then dried at 105℃.One gram hair sample was ashed at 600℃ until it was changed into white powder. The powder was then dissolved in 0.2 ml nitric acid containing 0.2 mg Yttrium used as an internal standard element. The solution was dropped on Mylar foil of 6μm thickness and dried under low vaccum. The prepared samples were irradiated by 100 mCi238Pu source. The X-rays emitted from each sample were measured for about 20 minutes by Si(Li) detector coupled to multichannel analyzer. X-ray spectra were analyzed by an on-line computer. The analytical results were printed out by a teletype. The contents of ten elements were thus determined.Significant tests were made for the difference of contents of hair between one group and other group. The results showed that the contents of Sr, Pb, Cu, Cr, and Ca in hair were significantly higher in Nanjing than in Shanghai, and the contents of Fe and Mn were significantly higher in Shanghai than in Nanjing, that the contents of Sr, Zn, Cu, Ni, Mn, and Ca were greatly significantly higher in women's hair than in men's, that the contents of Ca, Mn, and Sr were significantly lower in the elderly and children than adults.It was found that the contents of Ca, Mn, and Sr were significantly lower in white hair than Black, and lower in patients with oral disease than controls, too.The correlation tests were applied to the contents of pairs of elcman-ts. Several pairs of elements (Ca and Mn, Ca and Sr, Sr and Mn, etc) were found to be significantly correlated in contents. Finally, the distribution of eight elements along a womans hair was determined.

应用放射性同位素源激发能量色散X射线分析技术测定了上海和南京两市1,000多例人发样品中的锶、铅、锌、铜、镍、铁、锰、铬、钛和钙的含量。对两市人发从地区、性别、年龄、健康状况、发色、沿毛发长度分布等方面进行了对比分析。结果表明:头发中的微量元素含量与地区、性别、年龄、健康状况及发色有一定的关系。一些元素能够反映环境接触的情况和人体中微量元素的营养水平,其中头发中钙、锶、锰和锌等元素含量与人体生长发育、健康状况和衰老可能有关。

Hair trace element concentrations have been measured in 29 age-and sex-matched groups of children with Keshan disease and normal controls.Hair was collected from children aged 3-10 in Yunnan province. The contents of Cu, Zn, Mn, Fe, Mo, Cr, Co, Ca were determined by atomic absorption spectrophotometry and polarography. Mn, Fe, Mo concentrations are higher in hair samples from patients than from controls. Zn contents are lower in patients. Highly significant differences were observed between the two...

Hair trace element concentrations have been measured in 29 age-and sex-matched groups of children with Keshan disease and normal controls.Hair was collected from children aged 3-10 in Yunnan province. The contents of Cu, Zn, Mn, Fe, Mo, Cr, Co, Ca were determined by atomic absorption spectrophotometry and polarography. Mn, Fe, Mo concentrations are higher in hair samples from patients than from controls. Zn contents are lower in patients. Highly significant differences were observed between the two groups in contents of Mn, Mo, and Zn.

对云南省大理县29名经临床确诊的3~10岁的克山病患者的头发进行了铜、锌、锰、铁、钼、铬、钴及钙含量的测定。并以年龄及性别相同的大理县正常儿童作为对照。元素测定方法除了钼用极谱法外,其余均用原子吸收光谱法。发样用1%洗净剂清洗,高温灰化。 分析结果显示,克山病患者发中锰、铁、钼含量极其显著地高于正常儿童,而发中锌含量又显著低下。

Under the present condition of Chinese diet, whether the excretion data from a single voided sample or a random sample taken at any time during the day can be used for appraisal of thiamin, riboflavin and N-meth-ylniacinamide nutritional status. Therefore, we carried out the following experiments.1.Eight healthy male adults with the age of 26-60 years took an ordinary diet and collected a 24-hour urine at four 6-hour intervals (5:30-11:30; 11:30-17:30; 17:30-23:30; 23:30-5:30) The creatinine excretion of each...

Under the present condition of Chinese diet, whether the excretion data from a single voided sample or a random sample taken at any time during the day can be used for appraisal of thiamin, riboflavin and N-meth-ylniacinamide nutritional status. Therefore, we carried out the following experiments.1.Eight healthy male adults with the age of 26-60 years took an ordinary diet and collected a 24-hour urine at four 6-hour intervals (5:30-11:30; 11:30-17:30; 17:30-23:30; 23:30-5:30) The creatinine excretion of each 6-hour was determined and the correlation between each 6-hour to the 24-hour of the same day was calculated. The results showed that they were highly correlated (r = 0.92, 0.75, 0.89 and 0.93).2.Four healthy male adults with age of 26-40 years took an ordinary diet with about 25g of meat as the basal, then added 100, 200, 300 grams of beef a day for three day, in each period respectively. In the third day of each period, a 24-hour urine of each subject was collected in four successive 6 hours tor the determination of their creatinine contents. The results showed that the creatiuine excretion was not significantly influenced by the addition of 100-300 grains of beef a day. The correlation oi creatinine excretion between the two 6-hour in day time to the 24-hour was highly significant (r = 0.66 and 0.75), but not significant in the night time (r = 0.43 and 0.24).3. Fourty healthy adults (23 male and 17 female) took an ordinary diet and their random samples ol urine in the day time and the 24-hour urine ot the same day were collected tor analysis of creatinine, thiamin, riboflavin and N-methylniacinamide. The results shoved that when these vitamin metabolites were expressed in relation to creatinine content ofthe same sample, the correlation between the random sample and 24-hoururine were highly significant. If these vitamin metabolites were expressed per hour, the correlation of thiamin and riboflavin in random samples to 24-hour's was highly significant, but not for N-methylniacinamide.It is concluded that under the present condition of Chinese diet, excretion data of thiamia, riboflavin and N-methylniacinamide from randome samples expressed in relation to creatinine content of the same sample can be used as appraisal of these vitamins nutritional status. According toour for mer studies, the guideline of interpretation of data on urinary excr-etion of thiamin, riboflavin and N-methylniacinamide could be classified asfollows.Vitamin metabolite Deficient LOw Normal AcceptableThiamin (μg/g. creatinine) 27 27-69 70-299>300Riboflavin (μg/g creatinine) <27 27-79 80-299 >0N-MN (mg/g creatinine) <1.5 1.5-2.49 2.5-3.49 >5

用任意一次尿中某些水溶性维生素排出量与肌酐排出量的比值来作为评定人群的营养状况最为简便,能解决收集24小时尿量不易完整的困难。本文的人体实验结果证明,任意一次尿中肌酐排出量与全日尿中肌酐排出量有显著的相关,即使一日偶尔增加100—300g的酱牛肉,对全日尿中肌酐的排出量影响不大。任意一次尿中硫胺素、核黄素、N’-甲基尼克酰胺的排出量与肌酐排出量的比值,能够反映出绝大多数受试者这些维生素的营养状况,可作为评定人群营养状况的指标。

 
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