The infection of hepatitis B virus(HBV) is a serious global public health problem around the world,with high incidence and fatality rate,especially in China.The study of diagnosis, treatment and prevention of chronic hepatitis B(CHB) had been heavily concerned. The rapid development of molecular biology technology and the wide application of biotherapy techniques have provided the important theoretical foundation for HBV detection, diagnosis and treatment.This article summarized the study progress of clinical and laboratory examination of CHB.

Objective To investigate the influence of epigallocatechin gallate ( EGCG)on reactive oxygen species (ROS) in mouse podocytes exposed to high glucose. Methods Mouse podocytes cultured in high glucose were exposed to different concentrations of EGCG (0.2, 10, 100 μmol/L) or α-tocopherol (0.2 μmol/L) for 6, 12, 24 hours. The viability of podocytes was detected by MTT. The intracellular formation of ROS was detected by confocal microscopy with fluorescent probe CM-H2DCFDA and was measured by fluorescence microscopy. RT-PCR was used to examine the expression of p22phox, p47phox and p67phox mRNA in cultured podocytes exposed to different concentrations of EGCG. Results Intracellular ROS generation was significantly higher in high glucose than that in control conditions (P<0.01). EGCG could significantly inhibit ROS induced by high glucose significantly (P<0.01). EGCG (100 μmol/L) led to an inhibition of the increased production of NADPH oxidase components of p22phox and p67phox mRNA in high glucose (P<0.05). The expression of p47phox mRNA in high glucose was inhibited by EGCG(0.2 μmol/L) and ot-tocopherol(0.2 μmol/L) (P<0.05). Conclusion EGCG can protect cultured mouse podocytes from injury of high glucose by inhibiting ROS formation.

Objective To evaluate effects of three modalities with intravenous immrnoglobulin(IVIG) infusion in the treatment of Kawasaki disease(KD). Methods 76 KD cases were treated by the IVIG in the Deparment of Pediatric of Kaiping Central Hospital from 1998 to 2004.The three modalities were as follows: four days treatment(0.4 g/kg,for four days continuance),two days treatment(1 g/kg,for two days continuance),one day treatment(2 g/kg,for one day).Results(1) In treatment of fever,conjunctiva congest and mouth change,and recover in white blood cell and erythrocyte sedimentation,one day treatment and two days treatment had better curative effects with significantly difference(P0.05).(3)In the prevention of coronary artery dilate(CAD),one day treatment and two days treatment had better curative effects significantly difference(P

Objective:To explore the relationship of NSCL/P with MTHFR gene polymorphism in Xinjiang Uyghur and Han popula-tion and the ethnic difference.Methods:rs1801131 and rs1801133 polymorphism was detected by SNaPshot genotype method in 170 children with NSCL/P and 100 healthy controls of Uyghur and Han population.Results:Rs1801133 TT and T allele was statistically difference between 2 nationalities(P <0.05),Rs1801133 CT and CT +TT genotypes in total case group and control group were sta-tistically different(P <0.05);Rs1801131 and rs1801133 conjoint analysis showed that between the 2 nationalities and between case and control groups of total population were statistically different(P <0.05);rs1801131 genotype between 2 nationalities or total cases and controls were not statistically different(P >0.05).Conclusion:Rs1801133 TT and T allele in Han nationality are more likely to suffer from NSCL/P than in Uyghur,rs1801133 CT and CT +TT genotypes are protective factors.Rs1801131AC and rs1801133CC conjoint is relevant to NSCL/P,and the risk in Uyghur is higher than in Han.MTHFR rs1801131 gene polymorphism may not be relat-ed with NSCL/P in Uyghur or Han.

For microbial production of lycopene, the lycopene synthetic genes from Pantoea agglomerans were integrated into Saccharomyces cerevisiae strain BY4742, to obtain strain ZD-L-000 for production of 0.17 mg · L(-1) lycopene. Improving supplies of isoprenoid precursors was then investigated for increasing lycopene production. Four key genes were chosen to be overexpressed, inclu- ding truncated 3-hydroxy-3-methylglutaryl-CoA reductase gene (tHMG1), which is the major rate-limiting enzyme in the mevalonate (MVA) pathway, a mutated global regulatory factor gene (upc2.1), a fusion gene of FPP synthase (ERG20) and endogenous GGPP synthase (BTS1), which is a key enzyme in the diterpenoid synthetic pathway, and GGPP synthase gene (SaGGPS) from Sulfolobus acidocaldarius. Over-expression of upc2.1 could not improve lycopene production, while over-expression of tHMGI , BTS1-ERG20 and SaGGPS genes led to 2-, 16. 9- and20. 5-fold increase of lycopene production, respectively. In addition, three effective genes, tHMG1, BTS1-ERG20 and SaGGPS, were integrated into rDNA sites of ZD-L-000, resulting in strain ZD-L-201 for production of 13.23 mg · L(-1) lycopene, which was 77-fold higher than that of the parent strain. Finally, two-phase extractive fermentation was performed. The titer of lycopene increased 10-fold to 135.21 mg · L(-1). The engineered yeast strains obtained in this work provided the basis for fermentative production of lycopene.
Bacterial Proteins ; genetics ; metabolism ; Biosynthetic Pathways ; Carotenoids ; biosynthesis ; Genes, Synthetic ; Genetic Engineering ; Pantoea ; enzymology ; genetics ; Saccharomyces cerevisiae ; genetics ; metabolism

To explore influence of platelet donation on donor's megakaryocytopoiesis, platelet counts and plasma concentrations of thrombopoietin (TPO), interleukin-3 (IL-3), IL-6 and nitric oxide (NO) were determined in 42 frequent platelet donors (undergoing plateletpheresis more than once a month for 24 months and their mean platelet yield of collection was 2.5 x 10(11)), in 62 limited platelet donors (undergoing plateletpheresis less than once a month for 24 months) after a donation-free period of > 5 weeks and in 40 whole blood donors who never undergoing plateletpheresis after a donation-free period of > 6 months. The results showed that the TPO levels was significantly lower in frequent platelet donors than in limited platelet donors (P < 0.01) and whole blood donors (P < 0.01). There were no significant differences between three groups in platelet counts, IL-3, IL-6 and NO. These findings suggest that the number of megakarocytes significantly increased in frequent platelet donors.
Adult ; Blood Donors ; Humans ; Interleukin-3 ; blood ; Interleukin-6 ; blood ; Megakaryocytes ; cytology ; Platelet Count ; Plateletpheresis ; adverse effects ; Thrombopoiesis ; Thrombopoietin ; blood

OBJECTIVETo summarize the ultrasonographic characteristics of ovarian carcinosarcoma (OCS).

METHODSTotally 12 patients with OCS have been detected in our department. All patients underwent surgical resection and the OCSs were confirmed pathologically. Ultrasound examination was performed before operation. Imaging features were analyzed retrospectively for bilaterality, size, and tumor solidity (cystic or solid). Presence of ascites and other evidence of peritoneal seeding, adjacent organ invasion, and surgical staging were also evaluated.

RESULTSUnilateral OCSs were found in 11 patients and bilateral OCSs in one patient one side was missed by ultrasound). Nine OCSs were solid, and 3 were mixed (solid and cystic). The diameter of the largest dimension was less than 10 cm in 4 cases, 10-20 cm in 7 cases, and larger than 20 cm in one case. Other ultrasonographic findings including peritoneal seeding and direct invasion into the adjacent organs were seen in 8 patients. Surgical stages were International Federation of Gynecology and Obstetrics (FIGO) classification c and b in one patient each, c in 9 patients, and in one patient.

CONCLUSIONOCSs usually present as large, hypoechoic, solid, and aggressive tumors, combined with frequent peritoneal seeding and adjacent organ invasion.

Adult ; Aged ; Carcinosarcoma ; diagnostic imaging ; Female ; Humans ; Middle Aged ; Ovarian Neoplasms ; diagnostic imaging ; Retrospective Studies ; Ultrasonography

OBJECTIVEEvaluation of two different methods of treatment of distal tibial fractures of the clinical indications, complications and efficacy.

METHODSForty-five cases of closed distal tibial fractures were assigned to two groups, 25 cases in group A included 18 males and 7 females, according to the AO/ASIF classification: 4 cases of type A, 14 cases of B, 7 cases of C, open reduction and anatomic plate fixation were used. Twenty cases in group B included 12 males and 8 females, 5 of type A, 9 of B, 6 of C, minimally invasive percutaneous locking compression plate osteosynthesis were used. Observed on the postoperative pain, skin necrosis of the incision, the incidence of deep infection and other complications, as well as the healing of fractures, ankle motor function for comparative study.

RESULTSAll patients were followed up 10 to 15 months, according to the visual analogue scale (VAS) score, group A were moderate to severe in, group B were mild to moderate between. Bone healing time: group A averaged (16.0+/-4.2) weeks, group B averaged (13.0+/-3.2) weeks, the difference was significant (P<0.01). Postoperative complications of group A was more than that of group B (P<0.05), there were significant differences. Ankle function in accordance with the assessment criteria Kofoed, the good and excellent rate of group B was higher than that of group A (P<0.05), there were significant differences.

CONCLUSIONMinimally invasive percutaneous locking compression plate osteosynthesis compared open reduction and anatomic plate fixation for distal tibial fractures with less trauma surgery, bone blood supply to the affected small, fracture healing faster, less complications, and ankle function better advantage of. It is consistent with the biomechanics of internal fixation, and is the treatment of tibial fractures ideal method.

Adult ; Ankle Injuries ; complications ; surgery ; Bone Plates ; Female ; Fracture Fixation, Internal ; methods ; Fracture Healing ; physiology ; Fractures, Closed ; complications ; surgery ; Humans ; Knee Injuries ; complications ; surgery ; Male ; Middle Aged ; Postoperative Complications ; Tibial Fractures ; complications ; surgery ; Treatment Outcome ; Young Adult

Objective To evaluate the efficacy of itraconazole oral solution for prevention of invasive fungal infection ( IFI ) in neutropenic patients with acute leukemia after chemotherapy.Methods Clinical data of 136 neutropenic patients with acute leukemia after chemotherapy at the Department of Hematology,Nanfang Hospital from January 2008 to December 2010 were retrospectively analyzed.Patients were divided into itraconazole group ( n =67 ) and control group ( n =69).There were 36 patients with acute nonlymphocytic leukemia ( ANLL),31 with acute lymphoblastic leukemia (ALL) in itraconazole group;while in control group,there were 30 patients with ANLL,38 with ALL and 1 with biphenotypic acute leukaemia (BAL).Patients in itraconazole group received intraconazole after chemotherapy until the neutrophil count was increased to 0.5 × 109/L or the body temperature returned to normal and without any imaging evidence of IFI.The incidence of IFI and clinical features were compared between the groups using SPSS 13.0 software.Pearson x2 test was used for nominal variables,for measurement data,t (normal distribution) or Mann-Whitney U (skewed distribution) test were used.Results There were 12 cases ( 17.9％ ) suffering from IFI in itraconazole group and 32 cases (46.4％) in the control group (x2 =12.59,P ＜ 0.01 ).For ANLL patients,the incidence of IFI in itraconazole group was significantly lower than that in control group ( 16.7％ vs.56.7％,x2 =11.53,P ＜0.01 ).In itraconazole group,the incidence of IFI in female patients was significantly lower than that in male patients ( 8.6％ vs.28.1％,x2 =4.35,P ＜0.05 ).And for the female patients,the incidence of IFI in itraconazole group was significantly lower than thatin the control group (8.6％ vs.44.7％,x2 =11.98,P＜0.01).Conclusion Itranconzole oral solution can effectively prevent IFI in neutropenic patients with acute leukemia after chemotherapy,especially for the female patients with ANLL.