1.Changes and significance of urinary N-acetyl-beta-D-glucosaminidase in patients with acute organophosphorus pesticide poisoning.
Chinese Journal of Industrial Hygiene and Occupational Diseases 2004;22(4):275-276
Acetylglucosaminidase
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urine
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Adult
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Biomarkers
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urine
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Clinical Enzyme Tests
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Female
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Humans
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Insecticides
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poisoning
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Kidney Diseases
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chemically induced
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urine
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Male
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Middle Aged
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Organophosphate Poisoning
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Poisoning
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urine
2.Changes of serum protein in patients with acute organophosphorus pesticide poisoning.
Chinese Journal of Industrial Hygiene and Occupational Diseases 2004;22(4):274-275
Adult
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Female
;
Humans
;
Insecticides
;
poisoning
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Male
;
Middle Aged
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Organophosphate Poisoning
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Poisoning
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blood
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Serum Albumin
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analysis
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Serum Globulins
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analysis
4.The effect of treadmill training on metabotropic glutamate receptor of a rat model of middle cerebral artery occlusion
Xi ZHANG ; Qingchuan GUO ; Jie JIA
Chinese Journal of Physical Medicine and Rehabilitation 2008;30(11):730-733
Objective To observe the effect of treadmill training on metabotropic glutamate receptor of a middle cerebral artery occlusion model in rat and its underlying mechanisms. Methods Sprague-Dawley male rats of 2 or 3 months old were randomly divided into 3 groups: a sham operation group, an iscbemia-reperfnsion group and a treadmill training group (subject to 2 weeks of training after the ischemia-reperfusion). All the animals were sacri-ficed after 2 weeks of training and their brains were sampled for measurement of the expression level of the striatum mGluR Ⅰ-mRNA, using RT-PCR technique. Results The striatum mRNA of mGluR1 and mGluR5 was signifi-cantly elevated in the ischemia-reperfusion group(P<0.01), but treadmill training significantly suppressed the ele-vation of the expression of mRNA of mGluR1 and mGluR5 (P<0.01). Conclusions Treadmill training can signif-icantly downregulate mGluR Ⅰ-mRNA expression. This might be one of the important mechanisms for inhibition of the excitatory glutamate production.
6.ESTABLISHMENT OF A RAT MODEL OF MIDDLE CEREBRAL ARTERY THROMBOTIC ISCHEMIA
Zhaoyan ZHANG ; Shusu GUO ; Xi CAO
Medical Journal of Chinese People's Liberation Army 1981;0(06):-
A catheter(0.3 mm O.D.)was introduced into the external carotid artery(ECA) lumen into the lumen of the internal carotid artery(ICA), then it was gently advanced to the intracranial segment of ICA until the intraluminal catheter was 2~3mm from the origin of MCA. At this point thrombin were injected into ICA to induce thrombosis. Behavior disorders were observed at 3, 6, 12h after the operation. Willis circle, infarct volume and histopathologic changes were examined 12 hours after operation. The results showed that the model had stable behavior disorder score and infarct volume. Mixed thrombus could be observed at the origin of the MCA. Infarction volume of this model was similar with that of the model developed by linear occlusion of MCA in our laboratory. The model has the advantages of easy operation, reliable ischemia and reproducible infarct volume. It may be useful in documenting the safety and efficacy of thrombolytic therapies.
7. Influence on the distribution of rehydrated particle sizes of freeze-dried docetaxel liposome
Chinese Pharmaceutical Journal 2012;47(12):976-978
OBJECTIVE: To investigate factors that affected the distribution of rehydrated particle size of freeze-dried docetaxel liposome and develop a technique of producing docetaxel liposome that can meet clinical requirements. METHODS: The single factor method was utilized in this study. Docetaxel liposome were prepared using different types of negatively charged phospholipids, or lecithins with varying phosphatidylcholine (PC) content, or various cryoprotectants at different gradient concentrations, followed by freeze-drying with different protocols. The particle sizes of corresponding rehydrated products were compared and the effects of different factors were analyzed. RESULTS: The optimal liposomal membrane was composed of dipalmitoyl phosphatidic acid (DPPA), 20% trehalose and lecithin containing 92% PC. The best freeze-drying protocol included following steps; flash freezing, 19 h of sublimation-drying and 9 h of desorption-drying. CONCLUSION: The parameters, including negatively charged phospholipids, cryoprotectants, PC content of lecithin and lyophilization protocols, had various effects on the particle sizes of reconstituted docetaxel liposome.
8.Biological function of Securin and prospect for research in tumor
Hongyan GUO ; Huiqin JIN ; Yunfei ZHANG ; Xi ZHANG
Journal of International Oncology 2012;39(3):176-179
Securin is a multifunctional protein which is encoded by PTTG gene.In the metaphase to anaphase transition during mitosis,Securin is involved in sister chromatid separation.The aberrant expression of Securin is found in many endocrine and related cancers,such as pituitary tomour,thyroid cancer,ovarian cancer,colon cancer et al.The function of Securin in cancer is related to its gene transactivation and association with other poteins like p21,p53.
9.Research on the quality of life and interventions to the elderly with visual impairment in residential settings
Jinjin GUO ; Fumin DAI ; Shuying ZHOU ; Huinan ZHAO ; Xi ZHANG
Chinese Journal of Practical Nursing 2015;31(2):79-82
As one of the important factors that impact the life of quality to the elderly,visual impairment has become a research highlight in developed countries.And some related results have been found out.It is in the primary stage of establishing the elderly community extending service system in China.Based on this background,literature about the impact of visual impairment on quality of life of the residential setting elderly and related interventions were reviewed.By drawing the experience from developed countries,we aim to innovate perfect interventions,improve the quality of life,avoid unexpected events such as fall and medication mistakes.
10.Investigation of H antigen on AB subgroup RBCs
Dong XIANG ; Zhonghui GUO ; Xi LIU ; Xiongmin ZHANG
Chinese Journal of Blood Transfusion 1988;0(03):-
Objective To find the rule of the distribution of H antigens on AB subgrouperythrocytes.Methods ABO subgroups were confirmed by using serological and molecular biology (PCR-RFLP) methods. AB subgroup with strong H was defined as red cell agglutination by anti-H of 2 scores or more higher than that of B cells.Results Strong H was only found in certain AB subgroups ,CisAB(100%),B(A)(100%), AxB(46.2%) and A2B(43.6%), but seldom in others among Chinese population.Conclusion The fact that H type-3, which comes from A type-2, can hardly be transferred by B and weak A glycosyltransferase can help to explain why some ‘strong’ H combines with ‘weak’ A in AB erythrocytes. Why only little H can be found in 53.8% AxB, 56.4% A2B and all A3B, AmB subgroup samples still cannot been explained.