Objective To explore the correlation of the apoptosis of peripheral blood mononuclear cell (PBMC) with plasma 8-iso-prostaglandin F2? (8-iso-PGF2?) level in order to confirm the peroxidation damage of hyperbilirubinemia in neonates with jaundice.Me-thods One hundred and twenty-nine neonates who were 2 to 7 days old were divided into 4 groups:slight jaundice (43 cases),moderate jaundice (38 cases),serious jaundice (18 cases),and healthy control(30 cases)groups.Plasma 8-iso-PGF2? levels were assayed by enzyme immunoassay(EIA),and the apoptosis rates of PBMC were determined by flow cytometry.Results 1.There was no significant difference in the apoptosis rate of PBMC between normal and slight jaundice neonates (P=0.108);apoptosis rate of PBMC was increasing with the aggravation of jaundice.2.Plasma 8-iso-PGF2? level in normal neonates was 14.74?6.71 ng/L,there was no difference between normal neonates and neonates with slight jaundice(P=0.502).Plasma 8-iso-PGF2? levels in neonates with moderate and serious jaundice were much higher(Pa=0).3.Positive correlation existed between plasma 8-iso-PGF2? level and PBMC apoptosis rate (r=0.602 P=0).Conclusions Hyperbilirubinemia can induce peroxidation damage,resulting in increase of PBMC apoptosis.Plasma 8-iso-PGF2? level can accurately eva-luate the peroxidation damage in neonates with jaundice.

Recombinant expression vector pcDNA3-MCPCD59DP containing human membrane complement regulatory proteins(hCRPs) MCP and CD59 cDNA was constructed successfully by using two independent promoters.After transfected into NIH3T3 cells with calcium phosphate-DNA precipitate method,NIH3T3 pcDNA3-MCPCD59-DP transfectants were obtained by G418 selection.Extraneous genes integration was identified by PCR.The co-expression of human CD59 and MCP at both mRNA and protein levels was confirmed by using RT-PCR and Western blot analysis.Human MCP and CD59 cDNA were integrated in NIH3T3 pcDNA3-MCPCD59-DP genomic DNA after continuous 30 times passages,indicating that NIH3T3 pcDNA3-MCPCD59-DP were stable cell lines.Human complement-mediated cytolysis assays showed that NIH3T3 cells transfected stably with pcDNA3-CD59,pcDNA3-MCP,and pcDNA3-MCPCD59-DP were protected from C-mediated damage and co-expressed human MCP and CD59 provided more excellent protection against C-mediated attack as compared with either CD59 or MCP expressed alone.The dicistronic vector represents an effective and efficacy strategy to overcome C-mediated damage and has potential therapeutic value for effectively controlling complement activation and finally for preventing hyperacute rejection in clinical gene therapy.

Adult ; Antibodies, Monoclonal, Murine-Derived ; administration & dosage ; therapeutic use ; Female ; Hemophilia A ; drug therapy ; Humans ; Rituximab

ObjectiveTo clarify the effect of medical students' non-intelligence factors on their academic records.MethodsTotally 104 medical students' non-intelligence factors and surgical academic records were collected and relationship between them was studied.Results① There were significant differences in academic records between students with different non-intelligence levels( F =4.21,P＜0.05 );better academic records were achieved in those with higher non-intelligence level than in those with good and poor non-intelligence level ( P ＜ 0.05 ).② There were significant differences in post clinical internship academic records between students with different non-intelligence levels ( F =8.65,P ＜0.01 ),better academic records were achieved in those with higher and good non-intelligence level( P ＜0.01,P ＜ 0.05 ).③ Medical students with higher and good non-intelligence level got obvious improvements in academic records after clinical internship,while students with medium non-intelligence level showed no difference ( P ＞ 0.05).ConclusionsMedical students' non-intelligence factors have obvious effect on their academic records.Keeping students' non-intelligence factors properly could improve their academic records.

Objective To determine the relevant factors of under staging and under grading in patients undergoing radical prostatectomy and to define important predictors of under staging in this population. Methods The clinical T stages and biopsy Gleason scores were compared with the pathological T stages and prostatectomy Gleason scores in 55 patients. Results Among the 55 cases,50 were preoperatively classified as clinical stages T 1～T 2,of whom 21(42%) were postoperatively classified as pathological stages T 3～T 4.Of the 26 cases who preoperatively had the Gleason scores of 2 to 6,11(42%) had postoperatively pathological grades of 7 to 10.Logistic regression analysis revealed that PSA( P =0.0159)at diagnosis and the percentage of positive biopsies of prostate ≥50%( P =0.0013) were significant predictors for preoperative clinical staging lower than postoperative pathological staging. Conclusions The results demonstrate that patients who were classified as clinical stages T 1～T 2 with PSA≥20 ng/ml and percentage of positive biopsies≥50% may have high possibility of under staging.

Recent years,progress has been made on the basic researches and clinical applications of ocular surface reconstruction with autologous or allogeneic limbal stem cells,oral mucosa epithelium and ex vivo cultured limbal stem cells.However,there are several issues,including the successful treatment for severe ocular damage,longterm follow-up and evaluation of clinical outcome,and the in vivo tracking of donor stem cells,remained to have definitive conclusions.Future studies should address the questions and challenges based on the basic research of limbal stem cell deficiency and standardized evaluation of clinical outcome.

LabVIEW is applied to the realization of virtual oscilloscope, and such functions are fulfilled as waveform display, parameter measurement, filter, spectral analysis, data storage and playback.

Objective To study the relation between Jiegeng loading drug up in Tianwang Buxin Wan and brain,heart and lung.Method 32 Wister rats were randomly divided into four groups(8 rats in each group),namely,control group,Jiegeng group,Tianwang Buxin Wan group,Tianwang Buxin Wan lacked Jiegeng group.The levels of cyclic nucleotide in the brain,heart and lung were assayed by radioimmunoassay.Result The levels of cAMP in the lung in every drug group were significantly increased compared with that of control group.It was significant on the level of cAMP in the lung between Tianwang Buxin Wan group and Tianwang Buxin Wan lacked Jiegeng group.Conclusion It was the lung that linked the effect of Jiegeng loading drug up in Tianwang Buxin Wan.

Objective To evaluate the efficacy and safety of intravenous cefmetazole in the treatment of patients with aspiratory pneumonia. Methods A multicenter, prospective and open-labeled trial was conducted. A total of 1522 patients were enrolled at the beginning, and only 1324 were evaluabled at the endpoint. The duration of treatment was 7-14 days. During the treatment and follow-up periods, we recorded any unexpected symptoms and abnormal laboratory tests. At last,we evaluated its efficacy and safety. Results The total effective rate of cefmetazole was 79. 8% (1056/1324). The total bacterial eradication rate was 75.0% ( 342/456 ) . The bacterial eradication rates of klebsiellar pneumonia, escherichia, staphyloccocus aureus and anaerobic bacteria were 78.2% (97/124), 80.8% (80/99), 89.0% (81/91), 9/11,respectively. Conclusions Cefmetazole is effective and safe in the treatment of aspiratory pneumonia.

Objective To investigate the clinical efficacy and safety of low-dose rituximab (RTX) for patients in primary Sj(..o)gren's syndrome (pSS) with thrombocytopenia.Methods Four pSS patients,2 with refractory thrombocytopenia and 2 with glucocorticoid-dependent thrombocytopenia,were treated with rituximab at 100 mg,intravenous,weekly for a total of two cycles,together with prednisone 1-2 mg · kg-1 ·d-1,and the counts of platelets and B-cells were evaluated.Results Efficacy of treatment was observed in all patients.The counts of platelets,at (3-39) x 109/L baseline,incleased in 1-2 weeks,and went up to ( 107-241 ) × 109/L in 3-8 weeks.Sustained remission had been achieved for 27-52 weeks.The doses of prednisone were tappered to 3.75-7.50 mg/day in 12 weeks.One patient who relapsed at the 27th week (platelet count 47 x 109/L),was retreated with 100 mg of RTX and still had good efficacy.The counts of B-cells reduced to (0.007-0.010) × 109/L,but they did not achieved the depletion.There were no severe adverse events during RTX therapy.Conclusions Our study has shown good efficacy and tolerability of lowdose RTX for pSS with thrombocytopenia.Low-dose RTX allows for reduction in corticosteroid doses and B-cells,while large-scale randomized double-blind controlled trials are needed to confirm the results.