1.Study On Correlation Between Interleukin-8 of Solute Transperitoneal Transport Of Peritoneal Dialysis
Xing CHENG ; Meichu CHENG ; Yinghong LIU
Journal of Chinese Physician 2001;0(08):-
Objective In order to understand the mechanism of solute transperitoneal transport, we studied the relationship between IL-8 level and protein transperitoneal transport. Method 12 New Zealand White rabbits were randomly divided into experimental and control groups. 2 5% glucose peritoneal dialysis solution (40ml/kg)contained 3?10 9 CFU staphylococcus aureus 1ml was injected into the abdominal cavity of experimental NZW rabbits and 2 5% glucose peritoneal dialysis solution (40ml/kg)contained 0.9%NaCl solution 1ml was injected into the abdominal cavity of controlling NZW rabbits. The plasma and effluent concentrations of blood creatinine ,glucose,total proteins and albumine were determined respectively, the D/P or D/Do values of creatinine , total proteins ,albumine or glucose were calculated respectively. Results The D/P ratios of creatinine, total proteins and albumin were increased significantly, while the D/Do of glucose was decreased in experimental group on different dwelling time points ,there was a significantly difference,as compared with the control group (P0 05),while there was significantly correlation after 60 mins(P
4. Polymorphism and pharmacokinetic research of ribavirin
Chinese Pharmaceutical Journal 2013;48(8):621-628
OBJECTIVE: To establish the preparation method and detection technology of ribavirin polymorphism, and to estimate the bioavailability differences among the ribavirin polymorphs. METHODS: Through polymorphism screening, ribavirin crystals of the form A, B, C, D were obtained. The crystal forms of ribavirin were characterized by different analysis methods, such as single crystal X-ray diffraction method (SXRD), powder X-ray diffraction method (PXRD), differential scanning calorimetry method (DCS), infrared spectrum method (IR) and melting point method (MP). solid ribavirin in different forms were orally administered to rats, and an HPLC-MS method was established to determine the plasma levels of ribavirin, and the bioavailability was analyzed. RESULTS: Of the four polymorphs of ribavirin, form C and form D were reported for the first time. The four polymorphic forms all could be identified by PXRD, DSC, IR and MP. The ρmax and AUC0-t of form A were superior to those of the other forms. CONCLUSION: Characteristic data for ribavirin polymorphism are obtained; and form A of ribavirin is a suitable medicinal crystal. This study has provided the basis for choice of medicinal crystal and the improvement of quality standards.
5.Relevance of cancer toxin pathogenesis theory with transformation of inflammation to carcinoma.
Chinese Journal of Integrated Traditional and Western Medicine 2015;35(2):243-246
The "Cancer Toxin" pathogenesis theory is an innovate theoretical system for cancer pathogenesis of Chinese Medicine, which was built on the basis of "Cancer Toxin" concept initially raised by Professor ZHOU Zhong-ying. The mechanism of the transformation from inflammation to carcinoma has become one of hot-points in the field of cancer research at home and abroad in recent years. We focused on discussing the relevance of the "Cancer Toxin" pathogenesis theory with the transformation mechanism from inflammation to cancer, provided evidence for using "Cancer Toxin" pathogenesis theory in intervening transformation from inflammation to cancer, hoping to guide for Chinese medical prevention and treatment of tumor.
Biomedical Research
;
Carcinoma
;
physiopathology
;
Humans
;
Inflammation
;
physiopathology
;
Medicine, Chinese Traditional
;
Neoplasms
;
physiopathology
7.Effect of Fluvastatin on the Tubule Function of the Patients With the Nephrotic Syndrome
Meichu CHENG ; Xing CHEN ; Yinghong LIU
Journal of Chinese Physician 2001;0(08):-
Objective To evaluate the effect of fluvastatin on the tubule function of the patients with the nephrotic syndrome. Methods Fifty two patients were divided into the experimental group and the control group at random ,all patients were treated with the standard therapies and fluvastatin was added to the experimental group.Plasma albumin,serum cretinine,serum lipid profiles,24hr urinal protein and urinary RBP were examined before treatment and after 8 weeks in all patients. Results The levels of TG,LDL,CH,urinary RBP,urinary protein after 8 weeks of the treatment were significant lowered than those before the treatment (P
8.Mitochondrial protein NDUFS3 and tumor
Pei WANG ; Xiaodong CHENG ; Xing XIE
Journal of International Oncology 2012;39(9):647-650
NDUFS3 is an essential subunit of mitochondrial NADH:ubiquinone oxidoreductase (complex Ⅰ ) and plays a critical role in the mitochondrial typeⅠ respiration chain.Mutations in this gene are shown to cause neurodegenerative disease such as Leigh syndrome (subacute necrotizing encephalopathy).In recent years,many evidences show that the expression of NDUFS3 proteins are lower in many cancerous cells compared to the corresponding normal cells.It comes to the conclusion that NDUFS3 may play a role in the tumorigenesis.
9.Study of iodine 125 particles implantation combined with high-frequency hyperthermia in the treatment of the advanced lung cancer
Xing CHENG ; Qing LI ; Qichao XIE
Chongqing Medicine 2014;(24):3199-3200,3203
Objective To observe the efficacy of CT guided implantation of iodine 125 particles combined with high-frequency hyperthermia in the treatment of the advanced lung cancer .Methods From 2011 November to 2013 March ,60 patients with ad-vanced lung cancer were randomly divided into treatment group :high frequency hyperthermia combined with iodine 125 particle im-plantation(30 cases) ,the control group :the iodine 125 particle implantation group(30 cases) .Thermotherapy was performed 3 -5 days after the implantation using NRL-004 type hyperthermia instrument made by Jilin Maida company in China ,every other day once time ,a total of six times ,60 minutes each time .The iodine 125 particle implantation was performed according to the treatment planning system(TPS) formulation by CT guided and the dosage was 90 Gy .The evaluation of treatment effect was conformed by CT scans after two months of treatment .The side effects was assessed too .Results The total effective rate was 96 .7% in the treatment group ,the control group was 80 .0% ,there was a statistically significant difference (P< 0 .05) .The local pain in chest wall remission rate was 75 .0% (6/8) and 50 .0% (5/10) in the treatment group and the control group(P>0 .05) .The side effects of the treatment was slight including pneumothorax and particle migration and so on .Conclusion Iodine 125 particles implantation is an effective treatment in the treatment of advanced lung cancer and can obtained better effects combined with high-frequency hy-perthermia .The side effects of the treatment is slight for two groups and no death related treatment .
10.cDNA microarray analysis of gene expression in acquired methotrexate-resistant of human choriocarcinoma
Yaxia CHEN ; Xing XIE ; Qi CHENG
Chinese Journal of Obstetrics and Gynecology 2001;0(06):-
Objective To identify the molecular components involved in acquired methotrexate-resistance of human choriocarcinoma. Methods Methotrexate-resistant cell line(JAR/MTX) was derived from JAR cell line by exposed to intervally and progressively increasing higher concentration of MTX. cDNA microarray analyses of JAR/MTX and its parental cell line JAR were performed. Results JAR/MTX was established after one year with stable resistance. Its resistant index to MTX was 7.3. Nine genes were differential expressed between JAR/MTX and JAR cells. INSR,SLC1A3,SAT,HBB,and FLJ12443 were underexpressed and HS1,TXNRD1,TAGLN2,and EEF2 were overexpressed in JAR/MTX cells. Conclusion The cDNA microarray system showed that several alterations of gene expression were present in acquired methotrexate-resistance of human choriocarcinoma.