Objective To investigate the effect of tumor necrosis factor-α (TNF-α) on intracellular calcium concentration ([Ca2 +] i) and the contraction of glomerular mesangial cells (GMCs),and prove that hypercontractility of GMCs induced by TNF-α in hepatorenal syndrome(HRS) was connected with inositol 1,4,5-trisphophate receptors (IP3Rs).Methods GMCs were divided into TNF-α-treated 0 h,4h,and 24 h groups.Another 3 groups were blocked by 2-APB.The effect of TNF-α on [Ca2 +] i was identified and observed whether it could be blocked by 2-APB.Contraction of GMCs was determined by accessing the surface area of cells before and after contraction.Results TNF-α significantly increased ET-induced calcium release,in that we found higher [Ca2 +] i after stimulated by ET in TNF-α-treated 4 h group and 24 h group[4 h:(648.08 ±267.11) nmol/L; 24 h:(879.30 ±-260.29) nmol/L; 0 h:(619.93 ±258.94)nmol/L,F =5.486,4 h vs 0 h:P ＜ 0.05 ; 24 h vs 0 h:P ＜ 0.05 ;24 h vs 4 h:P ＞ 0.05].This phenomenon can be totally blocked by 2-APB in all groups.The change in planar surface area in response to ET was slightly in control cells but significantly enhanced in TNF-α-treated cells [4 h:(2198 ± 340)μm2; 24h:(2260±553)μm2; 0 h:(2436±474)μm2,F =4.001,4 h vs0 h:P ＜0.05; 24 h vs0 h:P ＜0.05;24 h vs 4 h:P ＞ 0.05].Conclusion TNF-α can enhance ET-induced sarcoplasmic reticulum Ca2 + release and increase the contractile responses of GMCs to ET,which is associated with IP3Rs.TNF-α is responsible for hyperconstractility of glomeruli in HRS.

Objective To study the therapeutic effect of plasma exchange and plasma perfusion(PE+PP)on acute fatty liver of pregnancy.Methods Twenty-one patients with acute fatty liver of pregnancy were divided into two groups.In the treated group,the patients were treated with (PE+PP) on the basis of the conventional therapy,and the control group received the conventional therapy only?Liver function,kidney function and prothrombin activity(PTA) before treatment and 4 weeks,6 weeks after treatment were observed.Results After treatment with (PE+PA),the liver function,kidney function and PTA were ameliorated at 4 weeks and 6 weeks(P

Objective To investigate the signal mechanism of protein kinase C alpha(PKC-α)participated in enhanced expression of type Ⅰ inositol 1,4,5-trisphophate receptors (IP3 RI) induced by tumor necrosis factor alpha(TNFα),in order to delineate the mechanisms of decreased glomerular filtration rate (GFR) in hepatorenal syndrome caused by TNFα.Methods The glomerular mesangial cells (GMCs)line from rats was chosen as experimental material.GMCs were divided into control (D),TNFα-2 h,TNFα-4 h,TNFα-8 h,and TNFα-24 h groups.Moreover,another two groups were sanflngol-8h (S),TNFα + Sanfingol-8h(TS)groups.The effect of TNFα on the expression of IP3RI was detected by immunocytochemical staining,Western blotting,teal time-polymerase chain reaction (PCR) assays.Results Immunocytochemical staining demonstrated that IP3 RI was mainly distributed in cytoplasm of GMCs.Enhanced positive staining was determined in all TNFα-treated groups,especially in TNFα-8 h group.Western blotting demonstrated that the expression of IP3RI protein was significantly higher in TNFα-4 h,TNFα-8h and TNFα-24 h groups than control group(4 h:1.82 ± 0.63 ; 8 h:2.95 ± 0.66 ; 24 h:2.48 ± 0.72 ; D:1 ±0.02 ; F =9.24,P ＜ 0.05).The expression of IP3 RI protein was the highest in TNFα-8 h and TNFα-24 h groups(P ＜0.05).No difference was found among S,TS,and control groups(S:1.39 ±0.65; TS:1.35± 0.37 ; P ＞ 0.05).Real time-PCR found the expression of IP3 RImRNA was significantly higher in all TNFα-treated groups than control group(2 h:3.35 ± 1.97; 4 h:3.16 ± 1.35; 8 h:3.70 ± 1.76; 24 h:4.49±1.70; D:1 ±0.01; F =6.167,P ＜0.05).No difference was found among all TNFα-treated groups(P ＞0.05).No difference was found among S,TS,and control groups(S:1.53 ±0.79; TS:1.32 ± 0.38 ; P ＞ 0.05).Conclusions IP3 RI was mainly distributed in cytoplasm of GMCs.TNFa could enhance the expression of IP3 RI protein and IP3 RI mRNA,which could be blocked by sanfingol,a PKCα inhibitor.It might be an important signal in the mechanisms of GFR decrease caused by TNFα in hepatorenal syndrome.

Objective To explore the effect of preemptive anti-cytomegalovirus therapy on prognosis of patients with acquired immunodeficiency syndrome (AIDS) and cytomegalovirus (CMV) viraemia.Methods A non-random prospective study of male hospitalized patients were carried out who were newly diagnosed as AIDS during July 1,2011 to June 30,2013 in the First Affiliated Hospital of China Medical University.There were 69 patients who were divided into treatment group (57 cases) and control group (12cases).The duration of anti-cytomegalovirus therapy was a week after plasma CMV-DNA becoming undetectable.Baseline age,CMV-DNA,human immunodeficiency virus (HIV)-RNA,CD4+T cells,the rate of pneumocystis carinii pneumonia (PCP) and tuberculosis were evaluated between two groups.After 12-month follow-up,CD4 + T cells,the rate of rehospitalization,CMV retinitis,and mortality were evaluated.Results There were no difference in CMV-DNA,HIV-RNA,CD4 + T cells,the rate of PCP,and tuberculosis(P ＞ 0.05).At the end of 12 months,there were higher CD4 +T cells and lower rehospitalization rate in treatment group than control group(t =-3.850,P ＜ 0.05;x2 =6.078,P ＜ 0.05).CMV retinitis was not found.The mortality was not different between two groups(P ＞0.05).Conclusions Anticytomegalovirus therapy was beneficial to the increment of CD4 +T cells and decrement of rehospitalization,and prevention from CMV retinitis.

Objective To prepare and identify the monoclonal antibody against asymmetric dimethylarginine (ADMA) and to do further research on clinical application .Methods The short immune peptide antigen was synthetized by solid phase technology . Splenocytes from the Balb /c mice immunized by synthetized antigen were fused with myeloma cells SP 2/0 for producing hybrido-ma .Hybridoma cell line secreting antibodies against ADMA was sifted by indirect ELISA and limiting dilution assay .The specificity of monoclonal antibodies against human ADMA were evaluated with Western blot and ELISA .Results Two hybridoma cell lines stably secreting monoclonal antibodies against ADMA were developed and named 22-1-1and 38-1-6 respectively .By applying West-ern blot and ELISA ,the results indicated that all monoclonal antibodies raised could specifically react with ADMA .Conclusion The success in the production of ADMA monoclonal antibody establishes foundation for application in the practice of clinical labora-to ry .

Aged ; Aged, 80 and over ; Anthracosis ; blood ; C-Reactive Protein ; analysis ; metabolism ; Cross Infection ; diagnosis ; therapy ; Humans ; Male ; Middle Aged ; Pneumonia ; blood ; Serum ; chemistry

Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Drugs, Chinese Herbal ; therapeutic use ; Evidence-Based Medicine ; Humans ; Lung Neoplasms ; complications ; therapy ; Neoplasms ; complications ; drug therapy ; Pain, Intractable ; drug therapy ; Phytotherapy ; Stomach Neoplasms ; complications ; therapy

Objective To investigate rheumatic disease manifestations in patients with myelodysplastic syndromes and explore possible causes.Methods Nine myelodysplastic syndromes(MDS)inpatients with rheumatic disease manifestations were reviewed retrospectively.Results Nine patients with the diagnosis of MDS had active rheumatic disease manifestations with various degree of hypergammaglobulinemia and positive autoantibodies.Two patients had rheumatoid arthritis(RA)and RA+anti-phospholipid syndrome(APS),four systemic lupus erythematosus(SLE)and SLE+polymyositis(PM),one patients had adult onset Still's disease, one with acute arthritis and cutaneous vassulitis,one had lupus-like manifestations including polyserositis,al- buminuria,hypocomplementemia and positive Commb's test.Conclusion The rheumatic disease manifesta- tions in patients with myelodysplastic syndromes are characterized by various active rheumatic disease manifes- tation.Immunological abnormalities and ineffective hematopoiesis are persistent.Immunologic abnormalities in MDS such as impaired function of T and B cells,hypergammaglobulinemia,positive autoantibodies,may be the causes of various rheumatic manifestations.We suggest that there is a significant association between myeludys- plastic syndrome and rheumatic diseases.

Objective To evaluate the feasibilities and advantages of different concentrations of sodium alginate (SA) solutions as a submucosal injection solution for endoscopic submucosal dissection (ESD). Methods In vitro study, different concentrations of sodium alginate solutions and normal saline were injected into submucosal of resected porcine esophagus and stomach respectively, then observe and measure the heights of each injection induced mucosal elevations, and their changes over time. In vivo study, the mimic ESD were conducted in healthy pigs to evaluate the mucosal elevation effect and other assistant effects of sodium alginate as a submucosal injection solution. Results The elevation heights of the experiment groups injected with SA solutions were much higher than the control group injected with normal saline. Specially, the elevation created by 1 % SA in porcine esophagus was significantly higher than that of normal saline (P < 0.01) and the elevation created by 3 % SA was significantly higher than that of normal saline in porcine stomach (P < 0.001). In the mimic ESD experiment, mucosal elevation with clear margin occurred immediately after injection with SA solution. And the durable submucosal fluid cushion created by SA protected deeper tissues while facilitating ESD procedure. Conclusion The elevation heights created by SA solutions were greater and more durable than that created by normal saline, which were crucial for ESD. The viscosity property enabled SA to form a stable protective cushion and prevent bleeding by squeezing tissue around the wound, which may decrease perforation and bleeding rate during ESD procedure. Therefore, sodium alginate can be an ideal clinical submucosal injection solution.

Background The tissue-engineered cornea is becoming the hot spot in the ophthalmologic field,while the research of corneal substitute is in the ascendant,because it is more similar to the corneal morpha and easy to survive in vivo.Objective This study was to investigate the biocompatibility of recombinant human type-Ⅲ collagen/poly9 ( 3-( methacryloylamino ) propyl dimethyl ( 3-sulfopropyl ) ammonium hydroxide ) ( PMPDSAH ) interpenetrating polymer network (IPN) (RHC-Ⅲ/PMPDSAH IPN) hydrogel as a tissue-engineered cornea in rabbit eye and its feasibility as the corneal substitute.Methods One hundred and eight rabbits were randomly divided into experimental group( 90 rabbits) and normal control group ( 3 rabbits),and 15 rabbits ( 30 eyes ) used as the donor corneas.RHC-Ⅲ/PMPDSAH IPN,NGF PMPDSAH IPN and corneal grafts were lamellarly transplanted into the right eyes in RHC-Ⅲ/PMPDSAH IPN group,NGF PMPDSAH IPN group and allograft group respectively.The corneal transparency and neovascularization were examined and scored under the slim lamp and compared among three groups using Kraskal-Wallis H test.The corneal epithelization time was observed and compared among these three groups using one way analysis of variance and LSD-t test.The histological examination of corneas was performed at the 3rd day,1st and 2nd week,1 st,3rd and 6th month after the surgery.The immunohistochemistry was used to detect the expression of K3 in cornea at the 6th month.Results The grafts were well attached in RHC-Ⅲ/PMPDSAH IPN group,NGF PMPDSAH IPN group and allograft group,and no rejection reaction was found throughout 6-month following up.Compared with normal control group,no significant differences were found in the scores of corneal opacification and neovescularization in these three groups (x2 =4.34,P =0.23 ;x2 =2.60,P =0.46 ) at the 6th month.NGF PMPDSAH IPN group achieved reepithelialization in (4.97±0.63) days and was obviously shorted than that in RHC-Ⅲ/PMPDSAH IPN group and allograft group ( t =11.97,P =0.00; t =5.80,P =0.00).The re-epithelialization time in RHC-Ⅲ/PMPDSAH IPN was (6.86±0.71) days,and that of allograft group was (5.87±0.43 ) days,showing a significant difference ( t =6.32,P =0.00).Hematoxylin-eosin staining results demonstrated that implanted materials integrated into the host corneal tissue well and support corneal epithelialization.Part of the material degraded at the 2nd week and degraded completely 1 month later.Regular alignment and distribution of collagen fibers were seen in the regenerated cornea and were similar to those of the normal stroma in 6 months.Immunohistochemistry showed the positive expression of keratin-3 in corneal epithelial cells.Conclusions RHC-Ⅲ/PMPDSAH IPN has a good biocompatibility without toxicity to corneal tissue.Furthermore,NGF can promote the corneal wound-healing and re-epithelialization.The material can be used as safe and reliable corneal substitute after improving the mechanical strength.