Hu Xiaofeng Zhang Ruiguang Chen ShanyongZhang Xiaochun Luo Xianben Huang Xin
Issue 2, (1993)
摘要:An explorative technique- scanning electron microscopy combined with energy dispersive X- ray analysis were used to observe the morphology of Ophiopogon Japonicus grown in Sichuan Province. The distribution of elements on transverse sections of Ophiopogon Japonicus was obtained, and elements Na, Mg, Al, Si, P, S, Cl, K, Ca, Fe, Cu and Zn were found in various transverse sections.
摘要:Shanghai has rich in the resources of natural mineral water. This paper discusses about the trace elements content natural mineral water in Shanghai in four aspects: (a) the normal index of trace elements for natural mineral water; (b) the geographical distribution of natural mineral water; (c) the trace elements content of natural mineral water; (d) the prospects of developing and utilizing natural mineral water.
摘要:Cobalt has essential physiological action on both animals and plants. For the latter it can raise plant’s nitrogen- fixing ability and saccharine content. Spray of cobalt mixed with other nutritive elements can improve the germinatity of seeds and the yield of fruit. For specifying the nutritive function of cobalt upon watermelon, isotope 60Co was mixed into a complex leaf nutritive aquor and the regularity of transferring and absorbing cobalt in the watermelon’s body was investigated.
摘要:This paper reports the influence of a radiostrontium decorporating agents, S186 (calcium sodium N- acetylproplysmine 1, 1- diphosphonate), on trace elements in internal organs of dogs. The trace elements contents were determined with a PE- 3030 atomic absorption spectrophotometer. Compared with the control group, the trace elements (Cu, Zn and Mn) contents and the Cu/ Zn ratio in organs of Beagle dogs after intramuscular injection of S186 for 30 days did not change obviously except the Cu content in the liver increased.
摘要:The contents of Ca, Sr, Pb, Zn, Cu, Ni, Fe, Mn, Cr and Ti in hair of 1023 pregnant women have been determined by using 238Pu source activated X- ray fluorescence analysis. It was found that the contents of Sr, Mn and Ca in hair of pregnant women decreased significantly in comparison with the control (p<0.01). The contents of Zn, Cu and Fe also reduced to various degree, especially for the late pregnancy.
Sun Aizhen Guo Ruixin Zhou Jieyan Wang Dongfeng Wang Huifang
Issue 2, (1993)
摘要:The rat model poisoned by lead acetate was treated with either EDTA or a traditional Chinese medicine (TCM) with the ability of "relieving toxin and strengthening spleen". In EDTA group, lead contents in blood fell to normal; the other parameters apparently improved but did not return to normal (p<0.05); and the contents of essential trace elements in urine increased while lead was expelled (p<0.05). But in TCM group, all the parameters returned to normal (p>0.05) and the contents of essential trace elements in urine did not obviously change (p>0.05). The curative effect of TCM is therefore better than that of EDTA. The mechanism probably lies in the following points: (1) TCM can expedite excretion of lead in feces and decrease the lead accumulation in liver; (2) FEP returns to normal, showing that the lead expelling effect of TCM is relatively complete; (3) TCM does not disturb the interior equilibrium of essential trace elements while expelling lead.
摘要:Plasma, platelets, monocytes (MNC) and erythrocytes have been separated from the whole blood offered by 53 healthy students by using "PERCOLL" liquid. Twenty elements in the above four components, including twelve essential trace elements, have been measured by ICA- AES except Se which was determined by catalytic pulse polarography. A significant age difference of Mo and Se contained in plasma as well as Fe, Ni, Ca, Zn and Cu in MNC was found. The level of the above elements was higher in college- students than that in middle- school- students, while the level of Mn in middle- school- students was higher than that in college- students. For middle- school- students, the level of Ca and Cr in plasma was higher in males than that in females. For college- students, except for Ti, Si, Cd and Co in MNC, the level of all other elements was higher in females than that in males, but the level of P and Fe in erythrocytes was higher in males than that in females. There was no age and sex difference in platelets. A significant difference of elements levels in each component was found. The level of different elements in each MNC was higher than that in each platelete and erythrocyte. There was some correlation among elements in each component of blood.
摘要:The effect of lysine- germanium (Ge401), a novel organogermanium on the natural killer activity (NK- A) in human peripheral blood was studied using 51Cr labelled K562 cells as target cells. Ge401 (50, 100 and 200 μg/ml) could augment NK- A(%) from 24.30 ±6.05 of the control group to 32.52±6.07 (p<0.05), 39.70±7.38 (p<0.01) and 43.42±7.71 (p<0.001) respectively, showing obvious dose- dependence. However, there is no direct influence of Ge401 (100 and 200 μg/ml) on 51Cr release rate of Ks562 leakemia cells.
摘要:On the basis of a self- comparison method for each individual, the change of trace element concentration in carcinoma in comparison with that in normal muscle, has been observed. The samples were collected from 15 mice, of which each has S180 tumor in one leg and the other leg is normal. One healthy mouse was also sampled as the control. So 31 samples were taken in all. The trace elements were analysed by the PIXE technique. The results show that Fe, Zn and As concentration and the Cu/Zn ratio in normal muscle are significantly different from those in carcinoma. The correlation of the trace elements with carcinoma was discussed.
Shi Kuixiong Ma Guansheng Zhang Tingyu Cheng WufengMao Dajuan Pan Bixia Xu Xiuxian
Issue 2, (1993)
摘要:Both sodium selenite and selenium yeast were chosen to block the MNNG mutagenesis. The inhibition rates were 66.5% and 37.9% respectively. The selenium levels in hair, serum and gastric juice, and the contents of nitrosamines in gastric juice were also determined. The results showed that the selenium levels were SG>CAG and Dys>GC (p<0.01), and the contents of nitrosamines were SG>G, Dys and GC (p<0.05). 19 cases of CAG patients treated with selenium yeast and 16 cases of the control were observed. After 10 weeks, the selenium levels in serum for the treated group were significantly increased. The symptoms of CAG patients seemed to be alleviated.
摘要:The concentration of 8 elements in subcellular fractions of normal human liver has been determined by a combination of differential centrifugation and neutron activation analysis. The collection of samples and the determination of trace elements were described in detail. Two biological standard reference materials were used for evaluating accuracy of the INAA method. Trace element contents and their distribution in 5 subcellular fractions of human liver have been investigated.
摘要:The effects of manganese on rat liver microsomal lipid peroxidation (LPO) stimulated by Vitamin C, Cumene hydroperoxide or CCl4 were evaluated. Malondialdehyde (MDA) was measured as an index of LPO by thiobarbituric acid (TBA) reaction. The results showed that MDA contents were significantly decreased in the group of manganese added and the inhibition of manganese was increased with the rise of its concentration, suggesting that manganese appeared to be an antioxidant and to have a dose- response relationship in the three models of microsomal LPO. The possible mechanisms were discussed.
He Guozhu Cai Zaixi Li Luwi Cheng GuipingMu Baofen Xue Zhaonan Wang Chunping
Issue 2, (1993)
摘要:Countless facts have proved that balance of the trace element concentration in body is the base of health. Measurements of the trace element concentration in human blood are essential to the research work on the relations between human health and trace element concentrations. This paper provides some values of trace elements concentrations in whole blood and serum for normal adults in Tianjin area.
摘要:The contents of Ca, Sr, Pb, Zn, Cu, Ni, Fe, Mn, Cr and Ti in hair of 63 leukemia patients have been determined by XRF. Compared with 115 normal adults, the hair levels of Zn, Cu and Ca in patients of both sexes were significantly decreased and the Pb level was dramatically increased (p<0.05 or p< 0.001). In addition, the hair contents of Ni, Fe, Mn and Cr in male patients were also significantly increased, while the hair Sr content in female patients was significantly decreased (p<0.05 or p< 0.001). It seems that the higher incidence of leukemia in male than in female was related to higher hair levels of Mn, Fe, Ni and Cr.