Airway Remodeling ; Asthma ; pathology ; physiopathology ; Child ; Humans

Asthma ; diagnosis ; therapy ; China ; Humans ; Practice Guidelines as Topic ; standards

Acetates ; administration & dosage ; therapeutic use ; Asthma ; drug therapy ; etiology ; metabolism ; Bronchiolitis, Viral ; drug therapy ; Cysteine ; metabolism ; Humans ; Infant ; Infant, Newborn ; Leukotriene Antagonists ; administration & dosage ; therapeutic use ; Leukotrienes ; biosynthesis ; Nasopharynx ; secretion ; Quinolines ; administration & dosage ; therapeutic use ; Respiratory Syncytial Virus Infections ; drug therapy ; metabolism ; virology ; Risk Factors

Objective To analyze the protection supplied by HSCs in vivo after islet cells homotransplantation. Method Diabetic mice were randomly divided into three groups as diabetic group,islet-transplant group and co-transplant group. 300 islets alone or mixed with HSCs were transplanted under the capsule of the kidney of the diabetic recipients respectively. Blood glucose and the length of normal blood glucose level were recorded and we collected the blood and tissue of islet graft 7 days after transplantation in each group. Blood concentration of TGF-β, TNF-α, IL-1β and IFN-γ were detected by ELISA. The infiltration of lymphocytes was observed by HE staining and immunohistochemieal examination.Result Co-transplant group had a prolonged islet allograft survival for (23.75 ± 8. 96) days, compared with the islet alone of (11.9 ± 6. 92) days. Blood concentration of TGF-β in co-transplant group was (2292.31 ± 5.87) pg/ml, significantly higher than those in simple transplant group (1246.55 ±38.91) pg/ml(P <0.05), there was no differentence in the two groups for TNF-α,IL-1β and IFN-γ.Conclusion HSCs may prolong the islet graft survival by expressing higher level of TGF-β and form a capsule around the graft.

Objective To investigate the effects of peritoneal injection of cobaltic protoporphyrin Ⅸ chloride(CoPP)to induce heme oxygenase-1(Ho-1)upregulation in rat islet cells.Mthods Forty rats were divided into 5 groups by management 24 h before islets isolation:group A received inlzaporitoneal injection with 2.5 ms/ks CoPP,group B with 5 ms/ks CoPP,group C with 7.5 ms/kg CoPP,and group D with 10 mg/kg CoPP.In control group NS was used instead.A modified Goth approach was used for islet isolation.the yield and purity of the islets were assessed.The expression of Ho-1 mRNA and protein were detected by real time-PCR and Western blotting respectively.Islet function was tested by glucose stimulation test.Result Severe damage was found in tlle rats in group C and D.There was no difference in islet yield and purity for group A、B、C and control(P＞0.05).Group B had the highest Ho-1 mRNA and protein expression among the 4 groups.Though there was no difference in insulin secretion by low glucose challenge for group A、B and control's islets(P＞0.05),when challenged by hish level of glucose,significant deviation was observed.The imulin secretion level was(172.37±16.4)、(187.68±19.93)and(91.25±Conclusion Peritoneal iajection of 5 mg/kg CoPP can significantly enhance the expression of Ho-1 mRNA and protein in tat islet safely and enhance the function of islet when challenged by hish concentration of glucose.

Objective To investigate the dynamic distribution changes of fungi responsible for the deep infection and antifungal susceptibility to provide a basis for the empirical antifungal treatment.Methods Medical records were reviewed from cases suspectedof deep fungal infection at our hospital from January 1998 to December 2004.3122 isolates of 13 species were analyzed with SPSSll.0.Etest was used for the antifungal susceptibility test.Results Candida albicans was the most commonly isolated organism,while the prevalence of Candida albicans decreased(76.3% vs 66.8%,x~2=34.33,P

Intra-abdominal infections (IAIs) are common in the clinical practice, which include a variety of patholo-gical conditions. Severe IAIs can lead to sepsis, secondary organ dysfunction, and threaten the lives of patients. Patients with IAIs are under a high metabolic reaction, and often have gastrointestinal dysfunction, manifesting as impaired intestinal mucosal barrier function, out of control in intestinal flora regulation, and continuous loss of nutrients. The body is in a malnutrition condition, and body resistance severely declines, which further aggravates disease progression. Intestinal micro-ecology is the largest and most complex ecosystem in the human body. In the case of coexistence of many bacteria, the synergy and antagonism between different strains maintain the balance of digestive tract microecology. Intestinal flora and nutritional status under IAIs have their particularity. Understanding the mechanism of intestinal flora abnormalities under IAIs, reasonable and effective nutritional support treatment and management is essential for improving the prognosis of patients with IAIs.

Objectlve To explore the mechanism of the protection in high expression of HO-1 induced by CoPP on murine islet xenografts. Method An islet transplantation of a SD rat-to-C57 BL/6 mouse model was established.Mice were randomized into five groups i.e.control,CoPP-induction in vivo,CoPP+ZnPP in vivo.CoPP-induction in vitro and CoPP+ZnPP in vitro and the islet xenografts were transplanted into the subrenal capsule.Normoglycemia time was recorded and insulin-releasing test was performed.IL-10、TNF-α、IL-1β and INF-γ in serum and their cytokine mRNA and HO-1 in xenografts were measured by RT-PCR and Western-blotting.The pathological examination was done to observe the lymphocyte infiltration. Results There Was significant difference in the normoglycemia time between CoPP-induction in vivo and in vitro and other three groups.The results of insulin-releasing stimulated by low level glucose were identical among groups,but that of insulin-releasing stimulated by high-glucose in in vivo group were the hiishest as in CoPP-induction in vivo and in vitro and control group were 187.68 ±19.93、137.22±11.73,91.25±12.64 μIU·ml~(-1)·10islets~(-1)·45 min~(-1),(P<0.05).The IL-10 in serum in CoPP-induction in vivo and in vitro(in vivo:72.97±9.74 pg/ml;in vitro:70.84±3.56 pg/ml)was significantly hisher than other three groups(control:30.57±3.93 pg/ml;CoPP+ZnPP in vivo:39.78±3.00 pg/ml;CoPP+ZnPP in vitro:35.42±4.30 pg/ml).The expression tendency of IL-10 mRNA was similar to that of insulin secretion.There was no significant difieFence in TNF-α、IL-1β and INF-γ.The expression of HO-1 by PCR and Western-blot analysis in CoPP-induction in vivo and vitro was higher than other three groups.The pathological examination showed that fewer lymphocytes infiltrated into the islet xenografts from CoPP-treated in comparison with xenografts from other three groups. Conclusion HO-1 could improve the survival of islet xenograft:the induetion of HO-1 expression in vivo was much mole efficient than in vitro.The CoPP-induction could be related to immune modulation of IL-10.