The intracellular hepatitis B surface antigen (HBsAg) content per cell was increased by 7.2-fold in the culture with 1.5% dimethyl sulfoxide (DMSO) compared with that in the control without DMSO, while the extracellular HBsAg production and specific productivity were only improved by 70% and 3.2-fold, respectively. Electron microscope has been employed to reveal large dilated structures within recombinant CHO cells in the presence DMSO. The dilated structures have a distribution within whole cytoplasm, and some dilated areas were engulfed in the nucleus. These large, dilated structures were not observed in the control. Immunogold labeling was used to discover the accumulated HBsAg was localized within these dilated areas, and some HBsAg-specific labels were detected in the nucleus membrane, owing to the encroachment of the dilated areas upon nucleus. The result could help to reveal the mechanism of intracellular HBsAg accumulation in the presence of DMSO.

0.05). After dividing the patients into early-onset and late-onset subgroups, there were significant differences of DRD4 genotype and allele frequency between early-onset patients and controls (P0.05). Conclusion The results suggested that the polymorphism of DRD4 receptor gene may be associated with early-onset OCD. The 3/4 genetype may be the risk factor of early-onset OCD. Early-onset and late-onset OCD may have different etiology.

Animals ; Cyclooxygenase 2 ; metabolism ; Disease Models, Animal ; Epilepsy ; chemically induced ; pathology ; physiopathology ; Hippocampus ; metabolism ; pathology ; Male ; Pilocarpine ; Random Allocation ; Rats ; Rats, Sprague-Dawley ; Time Factors

Objective To explore the qualification and consuming of iodized salt at wholesale and household levels after Salt Iodization.Methods Iodized salt surveillance at wholesale and household levels every year by detecting iodine content.Direct titration method(GB/T 13025.7-1999)was used for salt iodjne detecting and arbitration method was used for Sichuan salt and special salt.Results Five thousand six hundred and seventy five samples of 227 batches from 3 wholesale industries were detected during 1996-2000,batch qualification rate was 60.79%(138/227)and iodized salt qualification rate was 61.83%(3509/5675).During 2001-2007,2556 samples of 252 batches from wholesale levels were detected.The batch qualification rate and iodized salt qualification rate were 1 00%(252/252)and 99.88%(2553/2556),respectively.At household level.1583 samples from 236 villages were detected during 1996-2000.Iodized salt qualification rate was 74.24%(1 170/1576)and consuming rate of qualified iodized salt was 73.91%(1 170/1583)and iodine median was 45.14 mg/kg.During 2001-2007,13 140 samples from 1656 villages were detected.Iodized salt qualification rate,consuming rate 0f qualified iodized salt and iodine median were 98.03%(12 830/13 088),97.64%(12 830/13 140)and 30.13 mg/kg,respectively. The most difference of iodine content was 3.46 mg/kg in 3 wholesale industries.At household level there was a 4.95%reduction in comparison with at wholesale level.Conclusions Salt iodization level and edible iodine salt reach the national requirements of iodine deficiency control from the starting stage.The quality 0f iodized saIt at household level related to the exclusive wholesale industry and loss phenomenon maybe existed when salt was sold from wholesale industries to residents.

Adolescent ; Child ; Child, Preschool ; Electrocardiography ; Female ; Fever ; complications ; Hemorrhagic Fever with Renal Syndrome ; blood ; complications ; pathology ; Humans ; Hypergammaglobulinemia ; blood ; Immunoglobulin M ; blood ; Male ; Pain ; complications

Objective To evaluate the outcome of combination of intensive preconditioning regimen allo-HSCT with imatinib for treatment of Ph chromosome positive acute lymphocyte leukemia (ALL). Methods Between 2009 and 2010, 8 patients diagnosed as Ph+ ALL received allo-HSCT from HLA identical sibling during complete remission. Imatinib was added into the therapies of 5 patients.Seven patients received the intensive preconditioning regimen based on BuCy2, one patient received the regimen of TBI-Cy. A median of 6. 02 × 108/kg mononuclear cells and 3. 14 × 106/kg CD34+ cells were transfused. GVHD prophylaxis included cyclosporine A and methotrexate. Results All patients were well tolerant to the regimen without serious regimen-related toxicity. The median time of ANC≥0. 5 × 109/L was 15. 5 days, and that of PLT≥20 × 109/L was 19 days. Thirty days after allo-HSCT, all patients got donor engraftment successfully. Among 8 cases, 4 cases presented acute GVHD, 2 developed degree Ⅰ , one developed degree Ⅱ , and one developed degree Ⅳ. Seven patients were alive 100 days after allo-HSCT, 3 of whom presented chronic GVHD. At the end of following-up period, 6 patients were alive, among them, 3 patients were alive without relapse; 3 patients relapsed; Two patients died, one from acute GVHD, and one from leukemia relapse. Conclusion Combined intensive preconditioning regimen allo-HSCT with Imatinib was an effective treatment for Ph+ ALL, but the effect of anti-chronic GVHD of imatinib should arouse certain attention.

This article reviewed pharmacological study development of Punica granatum L. both at home and abroad in recent years. P. granatum has a long medical usage history. Different parts of P. granatum have wide applications in both traditional Chinese medicine (TCM) and other ethnic medicine. Its main chemical compositions were tannins, flavonoids, alkaloids and organic acids. It has obvious pharmacological activities. In recent years, the pharmacological research progress on P. granatum in terms of antibacterial, antiviral, hypoglycemic, antitumor, adjusting blood lipids, antioxidant, and immunoregulation has rapid development. The scientific collection and analysis on effects and new pharmacological research results of P. granatum are hoped to provide references for the study, clinical application, development and utilization of P. granatum and its products.

· AIM: This study was designed to evaluate the effectiveness of anterior lens capsule inclusion in combined trabeculectomy and cataract surgery in preventing scar formation of the filtering bleb in rabbit model.· METHODS: Twerty-Four eyes (12 rabbits) with glaucoma model were studied, anterior lens capsule inclusion in trabeculectomy with the small-incision cataract surgery were performed on all right eyes (experimental group) and no implants were applicator in trabeculectomy with the small-incision cataract surgery on all left eyes (control group). These operated eyes were followed up from day 1 to 6 months postoperatively. Intraocular pressure (IOP) was measured and filtering blebs were observed after surgery. Other main outcome measures: cornea、conjunctiva、formation of the anterior chamber, anterior chamber depth、inflammatory reaction、achievement ratio of operation and complications were analyzed. On week 1, 2, 4, 12 and 24 after surgery the animal were killed in batch. Tissue was harvested from the bleb area and was made pathological section. HE staining、light microscope and micro photo analysis technique were applied to observe the cytological and histopathologic characteristics of the filtering tunnels.· RESULTS: There were significant differences between the two groups on IOP (1, 2, 4 weeks)、filtration bleb, achievement ratio of operation and complications. In experimental group, at the first month postoperatively, anterior lens capsule absorption started with inflammatory characteristics. The peak of inflammatory reaction occurred 1 week after operation and all the cells in the filtrating tunnel disappeared 6month after surgery. The fibroblast proliferation in control group occurred at I week and the filtrating tunnel closed with angiogenesis at 1 month after surgery. Fibroblast proliferation started 1week after surgery with no statistical difference during the time course (P ＞0.05). Significant statistical differences were observed by comparing the fibro blasts numbers per unit area in the filtrating tunnel in experimental group and those in control groups (P＜0.05).· CONCLUSION: Anterior lens capsule was totally absorbed at 6 months postoperatively. Anterior lens capsule inclusion in trabeculectomy with cataract surgery can possibly control intraocular pressure effectively, long-term sustainability of functional filtration bleb, inhibition of the proliferation of fibroblasts and opening of the filtrating pathway in the experimental animal models were satisfied. Compared to the control group, anterior lens capsule application has less complication.

To improve 3-ketosteroid-△1-dehydrogenase(KSDH) activity and the transformation level for androst-4-ene-3,17-dione, 3-ketosteroid-△1-dehydrogenase gene(ksdD) from Arthrobacter simplex was cloned into plasmid pWB980 and expressed in B. subtilis WB600 under the control of promoter P43. The molecular weight of expressed enzyme was about 55kDa by SDS-PAGE analysis. The activitities assayed by spectrophotometrical method of intracellular and extracellular soluble enzyme were 110?0.5mU and 15?0.6mU per milligram of protein respectively. The transformation rate of androst-4-ene-3,17-dione by the B. subtilis recombinant cells was 45.3%. Compared with Arthrobacter simplex, the enzyme activity of KSDH expressed in B. subtilis was improved about 30 fold, and the transformation level of androst-4-ene-3,17-dione by the B. subtilis recombinant cells was improved about 10 fold. The recombinant B. subtilis cells used in biotransformation of steroids provided a new way for steroid medicines production.

Silkworm is a holometabolous insect of Lepidoptera. During metamorphosis, significant morphological changes happen including the dissociation of old tissues and remodeling of new tissues. It has been reported that cathepsins are involved in these processes. Cathepsin is a kind of intracellular proteinase that exists in many species. It includes some subfamilies like cathepsin B, H and L. The studies on cathepsin are useful for clarifying the details of silkworm metamorphosis process. In total, 13 cathepsins were identified by screening the silkworm genome database. The basic information and the expression patterns about these genes were analyzed. Interestingly, an ovary-specific cathepsin L gene (Gene ID: BGIBMGAOO4622) was investigated by the data of silkworm microarray and real-time quantitative PCR (qPCR). The full-length cDNA is 1,209 bp, encoding a protein with 402 amino acids. Sequences alignment revealed that it has a high sequence similarity with cathepsin L of other species, and it is highly conserved in the active-site of the enzyme. The phylogenetic analysis showed that ovary-specific cathepsin L is clustered with other lepidopterous insects. Furthermore, this gene was cloned and prokaryotic expressed. Recombinant protein was present in inclusion body. Importantly, the qPCR result showed that the expression level of this gene is increasing during the early stage of pupal development and reaches the highest value at the 3rd day of pupal stage, which suggests that this gene may be involved in the process of development of the ovary and oocyte.
Animals ; Bombyx ; genetics ; Cathepsins ; genetics ; Insect Proteins ; genetics ; Phylogeny