Influence Modified of Shaoyao Gancaotang Combined with Yiguanjian on Chronic Atrophic Gastritis with Deficiency of Stomach Yin / 中国实验方剂学杂志

Objective:To observe clinical effect on chronic atrophic gastritis （CAG） with deficiency of stomach Yin when modified Shaoyao Gancaotang combined with Yiguanjian used on patients， and to study influence to prognostic risk. Method:One hundred and ten cases patients were randomly divided into control group 54 cases and observation group 56 cases. Two groups got treatment of eradication of <italic>Helicobacter pylori </italic>（Hp）. Patients in control group got Yangweishu capsules， 3 grains/time， 2 times/day. Patients in observation groups when Shaoyao Gancaotang combined with Yiguanjian modified， 1 dose/day. The treatment continued for 16 weeks. Before and after treatment， gastroscope was discussed and operative link for gastritis assessment （OLGA） and operative link on intestinal-metaplasia assessment （OLGIM） were recorded， scores of atrophic degree， intestinal metaplasia degree， Hp infection， chronic inflammatory reaction， activity， endoscopic mucosal signs， dyspepsia symptoms， reported outcome patients reported outcomes （PRO） of patients with gastrointestinal diseases were graded. And to test levels of pepsinogenⅠ （PG Ⅰ），PGⅡ， gastrin-17 （G-17）， cytotoxin associated gene A （CagA） and vacuolar cytotoxin （VacA）. Result:The effect of patients treated in observation group was better than the effect of patients received measures in control group （<italic>Z</italic>=2.068， <italic>P</italic><0.05）. Scores of atrophic degree， intestinal metaplasia degree， chronic inflammatory reaction and activity were lower than the scores of patients received measures in control group （<italic>P</italic><0.01）. Levels of OLGA （<italic>Z</italic>=2.037， <italic>P</italic><0.05） and OLGIM （<italic>Z</italic>=2.014， <italic>P</italic><0.05） of patients treated in observation group were better than the levels of patients received measures in control group. And levels of PGⅠ， G-17 and PG Ⅰ/PGⅡ of patients treated in observation group were higher than the dates of patients received measures in control group （<italic>P</italic><0.01）. Positive rates of CagA and VacA were all lower than the dates in control group （<italic>P</italic><0.05）. And gastroscopic mucosal signs and dyspepsia symptoms and scores of PRO were all lower than dates of patients received measures in control group （<italic>P</italic><0.01）. Conclusion:On the basis of eradicating Hp， treatment of Shaoyao Gancaotang with Yiguanjian modified can relieve the clinical symptoms， improve the quality of life of patients， promote mucosal repair， improve the pathological changes， reduce the degree and scope of gastric mucosal atrophy， which is conducive to delay the progression of lesions and reduce the risk of canceration when it used on CAG. It has good clinical efficacy and was worthy of further study

Association of interleukin-10 gene polymorphism with enterovirus 71 infection in children / 中国当代儿科杂志

OBJECTIVE@#To study the association of interleukin-10 (IL-10) -1082A/G, -819C/T, and -592C/A polymorphisms with IL-10 level and the severity of enterovirus 71 (EV71) infection in children.@*METHODS@#A total of 137 children with hand-foot-mouth disease due to EV71 infection were enrolled as EV71 infection group, which was further divided into mild group with 91 children and severe group with 46 children, and 122 healthy children who underwent physical examination were enrolled as healthy control group. Related clinical data were collected. ELISA was used to measure the serum level of IL-10, and polymerase chain reaction-restriction fragment length polymorphism was used to analyze IL-10 -1082A/G, -819C/T and -592C/A polymorphisms.@*RESULTS@#Compared with the healthy control group, the children with EV71 infection had significantly higher frequency of -1082 AA genotype and A allele (P0.05). The severe group had a significantly higher serum level of IL-10 than the mild group and the healthy control group. IL-10 -1082 AA genotype, -819 TT genotype, and -592 AA genotype were associated with the low expression of IL-10 (P0.05).@*CONCLUSIONS@#IL-10 gene polymorphisms are associated with IL-10 expression and the severity of EV71 infection in children.

Effect of tripterygium glycosides and Danshen injection on blood coagulation mechanism in children with allergic purpura nephritis / 中国中药杂志

To observe the effect of tripterygium glycosides combined with Danshen injection on blood coagulation mechanism in children with allergic purpura nephritis, and investigate its treatment efficacy through a randomized controlled study. The results showed that before treatment, there were no significant differences in levels of D-D, APTT, PT, FIB and PLT between treatment group and control group; while after treatment, there were significant differences in levels of D-D, PT, FIB and PLT between two groups, but no difference in level of APTT. The effective rate was 90.38% in treatment group, significantly higher than 79.25% in the control group. There was no significant difference in incidence of adverse reactions between two groups. The results suggested that tripterygium glycosides combined with Danshen injection can enhance treatment efficacy and improve blood coagulation mechanism of children in the treatment of purpura nephritis, with high safety and no adverse effects.

Protective Effect of S-isopentenyl-L-cysteine against DNA Damage in Irradiated Mice / 中国医学科学院学报

<p><b>OBJECTIVE</b>To evaluate the protective effect of S-isopentenyl-L-cysteine,a new cysteine derivative,on DNA damage induced by radiation by using acute radiation injury animal models.</p><p><b>METHODS</b>Forty ICR mice were randomly divided into five groups:the control group,1.0Gy gamma irradiation group,1.0Gy gamma irradiation combined with S-isopentenyl-L-cysteine group,7.2Gy gamma irradiation group,and 7.2Gy gamma irradiation combined with S-isopentenyl-L-cysteine group,with 8 mice in each group.The comet assay and bone marrow polychromatic micronucleus experiments were performed to evaluate the double-strand DNA breaks in ICR mice exposed to 1.0 and 7.2Gy gamma-ray, respectively.</p><p><b>RESULTS</b>The tail DNA percentage,tail length,tail moment,and olive tail moment of peripheral blood lymphocytes in 7.2Gy gamma irradiation group were significantly higher than that of the control group (P<0.01).And it was also observed that above experimental indexes of 7.2Gy gamma irradiation combined with S-isopentenyl-L-cysteine group was significantly less than that of 7.2Gy gamma irradiation group (P<0.05). In addition,the micronucleus rate of 1.0Gy gamma irradiation group and 7.2Gy gamma irradiation group were both significantly higher than in the control group (P<0.01). In addition,in mice given S-isopentenyl-L-cysteine before irradiation,the micronucleus rate of ICR mice exposed to 1.0 and 7.2Gy gamma-ray decreased from (39.5000 ± 3.3141)‰ to (28.1667±4.1345)‰ (P=0.033) and from (76.5000 ± 4.6242)‰ to (22.8333 ± 3.6553)‰(P=0.000),respectively. The bone marrow polychromatic micronucleus experiment indicated that the value of polychromatic erythrocyte (PCE)/normochromatic erythrocyte(NCE) of ICR mice exposed to 1.0 and 7.2Gy gamma-ray was less than the control group(P<0.05). Meanwhile,after irradiating by certain dose,the value of PCE/NCE in mice given S-isopentenyl-L-cysteine before irradiation was significantly higher than the corresponding groups (P<0.05).</p><p><b>CONCLUSION</b>S-isopentenyl-L-cysteine has a good protective effect against DNA damage induced by radiation.</p>

Study on granulocytes derived from induction of committed differentiation of hematopoietic stem/progenitor cells ex vivo / 中国实验血液学杂志

To evaluated the feasibility of preventing infection after high dose chemotherapy and radiotherapy using the granulocytes derived from differentiated from hematopoietic stem/progenitor cells ex vivo, human CD34-positive cells were isolated from umbilical cord blood by using a high-gradient magnetic cell sorting system (MACS), and the cells committedly differentiated with hematopoietic cytokines (SCF + IL-3 + IL-6 + G-CSF) in a liquid culture system. The expanded cell number, ratio of the viable cells, chromosome and phenotype of the differentiated cells and safety analysis of expanded cells were detected by using cell count, trypan blue exclusion test, karyotype analysis, flow cytometry and tumorigenic model of nude mice, respectively. The results showed that the combination of cytokines increased cell number by (1006.4 +/- 103.2) folds and flow cytometric analysis showed myeloid marker CD11b expressed in the about 60% cells. The growth peak of differentiated cells was at 14 days of culture and decreased at about 33 days. No abnormality was found in the karyotype analysis of expanded cells. No tumor was found in the nude mice injected with expanded cells after 35 days and the expanded cells had the ability of phagocytizing bacteria. It is concluded that the cells, differentiated from CD34(+) cells, expanded ex vivo possess the function of granulocyte and it was safe for clinical trial.

Expression of telomerase during induction of committed differentiation of human cord blood hematopoietic stem/progenitor cells in vitro / 中国实验血液学杂志

To investigate the expression of telomerase in cord blood hematopoietic stem/progenitor cells during their committed differentiation in vitro and provide an index of monitoring the proliferating potential of the hematopoietic stem/progenitor cells and security for clinical application. Human CD34 positive cells were isolated from umbilical cord blood by using magnetic cell sorting system (MACS), and were induced to differentiation with hematopoietic growth factors (SCF + IL3 + IL6 + GCSF and SCF + IL3 + IL6 + EPO) in a liquid culture system. The telomerase activity and the cytalytic subunit of telomerase (hTERT) of the cells were analysed during different periods of culture by using TRAP-PCR, TRAP-ELISA, Western blot and RT-PCR techniques, respectively. The results showed that a peak of cell growth was achieved on day 14 - 21 during induction of differentiation in vitro. Total cell number could increase 1006.4 +/- 103.2 times and could not increase there after. Telomerase activity and hTERT expression were low in freshly isolated cord blood CD34(+) cells and increased after about 7 days of culture in addition of cytokine combinations of SCF + IL3 + IL6 + GCSF and SCF + IL3 + IL6 + EPO, respectively. The telomerase activity and hTERT decreased after 14 days of culture and were not detected after 28 days of culture. It was concluded that the hematopoietic stem/progenitor cells can be expanded in large number in vitro and do not have the character of immortality and the telomerase activity could be a useful index in hematopoiesis regulation.

Experimental study on treating rat focal segmental glomerulosclerosis with Decoction of Bu-Shen-Huo-Xue-Xie-Zhuo / 中国病理生理杂志

AIM: To observe the effects of Decoction of Bu-Shen-Huo-Xue-Xie-Zhuo (BSHXXZ) on focal segmental glomerulosclerosis (FSGS) in rats. METHODS: Unilateral nephrectomy was adopted firstly, one week later adrimycin was intravenously adminstered to 20 rats twice in a 23-day period to establish an advanced focal segmental glomerulosclerosis model in the rat. Changes in urine protein, blood chemistry, and histology of the kidney were investigated for 110 days after unilateral nephrectomy. RESULTS: The BSHXXZ decoction reduced edema, proteinuria, hyperlipidemia, azotemia and ascites, and increased albumin in blood. Light microscopic, electron microscopic, immunohistochemical and polarizing microscopic examination all showed that the pathologic changes in the treatment group were less than that of the model group. CONCLUSION: Decoction of BSHXXZ could markedly improve renal function and delay the progression of glomerulosclerosis and renal interstitial fibrosis.

Study of renal tubular epithelial cells transformations in rat tubulointerstitial fibrosis / 中华肾脏病杂志

Objective To observe the phenotypic changes between renal tubular epithelial cells and mesenchymal cells in rat tubulointerstitial fibrosis(TIF) .Methods The renal tubulointerstitial fibrosis models of Wistar rats were established by gavage with excessive adenine. The morphological changes of model kidney were observed by light microscopy, electron microscopy, polarizing microscopy. The?-smooth muscle actin(a-SMA), vimentin, and keratin were examined by immunohistochemistry staining. While the proliferating cell nuclear antigen (PCNA) was also assessed. Results There were many 2, 8-dioxyadenine crystals derived from the metabolite of adenine to deposit in the renal tubules, which induced the injury. Tubular epithelial cells degeneration and regeneration, loss of renal tubules, mononuclear cells infiltration in renal interstitium and the accumulation of extracellular matrix protein were observed. Both ?-SMA and vimentin were positive in some of renal tubules. And consecutive sections of immunohistochemical staining showed that the area of distribution of a-SMA positive cells was almost the same area as that of vimentin positive cells. Polarizing microscopy results showed that there was a mass of interstitial collagen ( Ⅲ and Ⅰ) accumulation. And electron microscopy examination proved that epithelial cells invaded into the renal interstitium. Conclusion There is tubular epithelial cells-myofibroblasts transdifferentiation in the process of TIF, and which plays a key role in the accumulation of extracellular matrix.

Effect of "Bushen Huoxue Xiezhuo" decoction on growth of rat glomerular epithelial cells / 中国病理生理杂志

AIM: To examine the effect of protamine sulfate, lipopolysaccharide(LPS),tumor necrosis factor(TNF), epidermal growth factor(EGF) and " Bushen Huoxue Xiezhuo" (BHX) decoction on the proliferation of extracorporeal cultured rat glomerular epithelial cells (GEC). METHODS: Their action on the proliferation of rat GEC were investigated using the -TdR incorporation. Meanwhile, the serum of rats treated with BHX decoction was extracted pharmacologically and its effects on the growth of GEC were also studied. RESULTS: LPS, protamine sulfate, TNF-? and EGF could significantly inhibit the -TdR incorporation of GEC in a dose- and time-dependent manner. However, this inhibition could be efficiently reversed by the serum containing BHX decoction. CONCLUSION: GEC is one of the main target cells on which BHX decoction act, and the protection on GEC might be one of the mechanisms underlying the role of BHX decoction in preventing the progression of nephrosis.