Objective To dieuss clinical manifestations of the organs damage out of lung caused by my-coplasma pneumonia(MP) infection in children. Methods Clinical date of 383 children with mycoplasma pneumonia infection were retrospectively reviewed. Results Among 383 cases, a total of 81 cases(21.25 %) were accompanied by organs damage out of lung. Conclusion The organs damage out of lung were observed in many system, the rate of organs damage out of respiratory tract is high in children. Mistake may occur easily in diagnosis if the symptoms out of lung appear first.

To investigate the effects of lidocaine on phospholipase A_2(PLA_2) and fluidity of lung cell membrane during rabbits endotoxemia. Method: Twenty-four white rabbits were randomly assigned to receiving one of three treatmemnts (n=8 for each group): infusion of saline(control group), infusion of Escbericbia coli endotoxin(endotoxin group), infusion of endotoxin with lidocaine pretreatment (lidocaine group). The PLA_2 activity, PS, PE and PC contents of lung cell membrane fluidity were analysed with high performance liquid chromatography and DPH method respectively. Result: PLA_2 activities in the plasma and cell membrane were reduced significantly, and the PS, PE and PC contents in the cell membrane increased significantly in lidocaine group compared with those in endotoxin group. The membrane fluidities of RBC and lung cells of rabbit with lidocaine pretreatment also incresed significantly in comparison with those in endotoxin group. Conclusion:The pretreatment with lidocaine inhibits PLA_2 activity in plasma and cell membrane of rabbit lung, reduces the contents of phospholipids in cell membrane of rabbit lung, increases membrane fluidity of RBC and lung ceils of rabbit and stabilizes cell membranes function.

BACKGROUND:The mycobacterium tuberculosis heat shock protein 10 exerts effects on the osteoclasts by in vitro mouse cranium experiment,
OBJECTIVE:To investigate the effect and mechanism of recombinant mycobacterium tuberculosis heat shock protein 10 (CPN10) on the differentiation of osteoclasts in the in vitro culture system that induces osteoclast differentiation.
METHODHuman macrophage colony-stimulating factor-dependent adhesive blood mononuclear cells were divided into four groupreceptor activator for nuclear factor-κB ligand (RANKL)+CPN10 (1 mg/L), RANKL, CPN10 (1 mg/L), and negative control (complete culture medium). Monocytes were resuspended in a-MEM medium containing macrophage colony-stimulating factor, and were cultured in each group for 7, 14, 21 days. The morphology, quantity and bone resorption area of osteoclasts were examined by tartrate-resistant acid phosphatase (TRAP) staining. The expressions of NFATc1 and c-Fos gene and protein were also detected.
RESULTS AND CONCLUSION:In negative control group, no TRAP-positive multinucleated osteoclasts generated, while in the other groups, TRAP-positive multinucleated osteoclasts differentiated and formed the lacunae in the smal bone grinding. The number of osteoclasts formation and resorption in CPN10 group were significantly lower than that in RANKL+CPN10 group. The expression of NFATc1 and c-Fos in the negative control group C was significantly lower than that of RANKL+CPN10 group and CPN10 group. However, CPN10 expressed NFATc1 and c-Fos protein, which was significantly lower than RANKL+CPN10 group. CPN10 is involved in the formation of osteoclasts, and the mechanism is related with the upregulation of NFATc1, c-Fos expression.

BACKGROUND:Mycobacterium tuberculosis heat shock protein 10 (r-Mt cpn10) is one of the main factors that cause bone tuberculosis dissolution and absorption as wel as inhibits the proliferation of osteoblasts. Receptor activator of nuclear factor kappa B ligand and osteoprotegerin are the important factors influencing bone metabolism.
OBJECTIVE:To observe the effect of r-Mt cpn10 on human osteoblast proliferation, alkaline phosphatase secretion, expression of receptor activator of nuclear factor-kappa B ligand mRNA and osteoprotegerin mRNA. METHODS:Human bone marrow stromal cel s were induced to differentiate into osteoblasts, and osteoblasts at passage 3 were cultured with various concentrations of r-Mt cpn10 (0.1, 1, 10 mg/L). Osteoblasts cultured without r-Mt CPN10 were assigned as controls.
RESULTS AND CONCLUSION:MTT assay results showed that, compared with control group, r-Mt cpn10 at different concentrations inhibited osteoblast proliferation and alkaline phosphatase secretion (P<0.05). RT-PCR analysis showed that, r-Mt cpn10 at different concentrations increased receptor activator of nuclear factor-kappa B ligand mRNA expression (P<0.01), and inhibited osteoprotegerin mRNA expression in a concentration-dependent manner (P<0.01). 10 mg/L r-Mt cpn10 exhibited the strongest effect (P<0.01). The r-Mt cpn10 can inhibit osteoblast proliferation and alkaline phosphatase activity, and it may influence bone metabolism by regulating the expression of receptor activator of nuclear factor-kappa B ligand mRNA and osteoprotegerin mRNA.

Objective To explore the efficacy of postoperative adjuvant transarterial chemoembolization (TACE) on the survival of patients after radical resection for hepatocellular carcinoma (HCC).Methods Between March 2007 and March 2010,229 HCC patients who underwent radical resection were retrospectively studied.Patients who underwent resection alone were used as the control group (138 patients) while those who received post-operative adjuvant TACE was used as the interventional group.In order to balance the covariates between the groups,a matched comparison of the patients was done by selecting patients using the propensity score matching (PSM).Then,the efficacy of adjuvant TACE upon survival was evaluated.Results After PSM,we obtained 67 pairs of patients.The survival time for the interventional and the control groups were 32.1 months and 28.3 months respectively.The survival rates at year 1,2,3 post-resection were 94.0％,84.8％ and 75.3％ in the interventional group versus 83.6％,69.9％ and 61.5％ in the control group respectively.There were no significant differences between the two groups (P =0.062).Univariate analysis showed the serum level of AFP,tumor size,number of tumor,BCLC stage,and adjuvant TACE significantly affected the survival of HCC patients who received radical resection (P ＜0.05).Cox model suggested that AFP≥400 μg/L and tumor diameter ＞ 5 cm were independent risk factors of survival for HCC patients who received radical resection (P ＜ 0.05).Conclusion Postoperative adjuvant TACE had no positive effect on survival,and AFP level ≥ 400 μg/L and tumor size ＞5 cm were independent risk factors of survival of HCC patients who received radical resection.

Objective: The effect of thymosin alpha 1 (Tα1) on patients with hepatocellular carcinoma (HCC) after radical hepatectomy was assessed. Methods: A total of 558 HCC patients treated by radical hepatectomy were retrospectively collected. Patients in the treatment group (n=146) received postoperative Tα1 therapy, whereas patients in the control group (n=412) did not. Propensity scale matching was conducted to improve the balance between the two groups. Changes in liver function, recurrence-free survival rates, and overall survival rates were compared between the two groups. Results: Postoperative liver function (i.e., TBIL, ALB, ALT, and PT) in the treatment group was significantly better than that in the control group (P<0.05). The one-, two-, and three-year recurrence-free survival rates and overall survival rates in the treatment group were significantly higher than those in the control group (P=0.019 and P=0.011, respectively). Conclusion:Postoperative Tα1 therapy can improve postoperative liver function, thus significantly prolonging recurrence-free survival and overall survival.

Objective To label granulocytes in a state of differentiation in mouse bone marrow (BM) with EdU (5-ethynyl-2′-deoxyuridine) for further understanding the changes in granulocyte produc-tion at different stages of differentiation during inflammation. Methods C57BL/6 mice were intraperitoneal-ly (i.p.) injected with EdU and heat-inactivated Escherichia coli(HI E.coli). BM cells were harvested at different time points after HI E.coli injection and then stained with fluorescent-conjugated antibodies(Abs). Myeloblasts,promyelocytes,myelocytes, metamyelocytes and band and segmented neutrophils were identi-fied by fluorescence-activated cell sorting(FACS). The percentage of EdU-positive cells in each population was recorded. Results The percentage of EdU-positive myeloblasts in mice increased by 10.0% at 24 h af-ter intraperitoneal injection with HI E.coli,but decreased by 75.0% and 23.0% at 48 h and 72 h,respec-tively. The percentage of EdU-positive promyelocytes declined by 23.0%,54.5%,64.3% and 77.8% at 24 h,48 h,72 h and 96 h,respectively. The percentage of EdU-positive myelocytes increased by 60.0% and 10.0% at 24 h and 48 h,but decreased by 80.0% and 90.0% at 72 h and 96 h. The percentage of EdU-positive metamyelocytes increased by 50.0% at 24 h,but decreased by 33.3%,61.5% and 66.7% at 48 h,72 h and 96 h. The percentage of EdU-positive band and segmented cells increased by 14.0% at 24 h,but decreased by 50.0%, 77.8% and 88.0% at 48 h, 72 h and 96 h. Conclusion Emergency granulopoiesis occurred 24 h after the establishment of HI E.coli-induced model of acute peritonitis, which meant that the proliferation of myeloid precursor cells,especially that of myelocytes and metamyelocytes,was accelerated and resulted in increasing number of mature neutrophils immigrating to sites of inflammation.