Objective To study the genomic molecular organization and genogroup of human metapneumovirus(hMPV) infected infants in Guangzhou of China. Methods Primers were designed on the basis of the genomic sequence of hMPV 00-1 strain(AF371337) in the GenBank, and amplify hMPV genomeby RT-PCR. The PCR-products were cloned to T vector and sequenced, the genomic nucleotide sequences were analyzed with the programs Clustal W/X, DNASTAR and MEGA4. 1. Results The cloned strainhMPVgz01 genome is 13 327 bp in length, the genome contains eight open reading frames in the order 3-N-P-M-F-M2-SH-G-L-5. The genomic sequences of hMPVgz01 strain are compared with those of hMPV in GenBank, revealed that the homology with hMPV group A ranges between 92%-97%, homology with group B is 81%, and with avian metapneumovirus group C is 71%, the highest homology is with BJ1887 strain of genogroup A2b. The N, F, G genes of hMPVgz01 strain are compared with those corresponding genes of hMPV subgroups A1, A2, B1, B2, revealed that the highest homology is also with genogroup A2b. Conclusion The complete nucleotide sequence of hMPVgz01 strain isolated from Guangzhou in China is 13 327 bp in length, GenBank accession No. is GQ153651. Comparison of the genomic sequence and three genes of hMPVgz01 strain with those corresponding sequences of hMPV show the highest homology is with genogroup A2b. Sequence and phylogenetic analysis of the hMPVgz01 strain revegled that this isolate belongs to genogroupA2b.

OBJECTIVE:To evaluation of the efficacy and safety of azithromycin in the treatment of acute infections METHODS:A randomized controlled multicenter clinical study was used to compare the clinical efficacy of azithromycin(200mg q d for 3～5 days) with erythromycin(500mg b i d for 5 days) RESULTS:The cure rate,effective rate,and bacterial clearance rate were 76 7%,95 0%,and 94 3% respectively for azithromycin group and were 48 3%,76 7%,and 77 4% respectively for erythromycin group with a side-effect incidence of 10 0% for azithromycin group and 39 3% for erythromycin group CONCLUSION:Azithromycin is superior to erythromycin in clinical efficacy,safety and side-effect incidence

Objective To prepare recombinant human adenovirus type 3 expressing Norovirus cap-sid protein gene(Noro-orf2). Methods The cDNA for Noro-orf2 was amplifed by RT-PCR from stool of in-fantile gastroenteritis and cloned into the adenovirus shuttle vector pBSE3CMV-egfp. The vector pBSE3CMV-Nor was linearized with EeoR Ⅴ and Not Ⅰ, and transformed into E. coil BJ5183 with lined edenovirus ge-nomic DNA pLasmid pBRAdv3 by Rsr Ⅱ. The identification of recombinant adenovirus plasmid pBRAdv3E3dNor was performed by PCR, enzyme digestion and DNA sequencing. Then pBRAdv3E3dNor was digested with AsiS Ⅰ and transfeeted into Hep-2 cells with LipofectAMINETM 2000 to package recombi-nant adenovirus particles. Results Noro-orf2 was successfully inserted into the shuttle vector. The recombi-nant adenoviral plasmid pBRAdv3E3dNor was generated by homologous recombination in E. coil BJ5183 and confirmed by PCR and enzyme digestion. The recombinant adenovirus was successfully packaged and puri-fied. Norovirus eapsid protein gene expression was confirmed in Hep-2 cells by immunecytochemistry assay. Conclusion The recombinant type 3 adenovirus expressing Norovirus eapsid protein gene was successfully constructed. This study laid a foundation for developing vaccine against Norovirus.

Objective To analyze the relationship between the genetic polymorphisms of uridinediphosphate glucuronosyltransferase 1A9 (UGT1A9) and mycophenolic acid (MPA)pharmacokinetics in Chinese kidney recipients.Methods Gene mutations (C-440T/T-331C,C-2152T,T-275A,T98C) were detected in 196 recipients by PCR-LDR.On the 28th day after transplantation,the plasma samples which were obtained at the time points of predose,0.5 h and 2 h after administration were measured by an immunoassay method (Emit Mycophenolic Acid Assay,Dade Behring).MPA-AUC0-12 was calculated based on these three data.Correlation between single nucleotide polymorphisms (SNPs) and MPA pharmacokinetics was analyzed.Results C-2152T,T-275A and T98C genotypes of UGT1A9 were not found in 196 recipients.The frequency of C-440T/T-331C gene mutation was 14.29% (28/196).The mean value of MPA-AUC0-12 was 40.6±11.8 wild genotype,respectively (P＞0.05).Conclusion C-2152T,T-275A and T98C genotypes of UGT1A9 are scarce in Chinese kidney recipients.In this study,there is no distinct relationship between -440/-331 SNPs and MPA pharmacokinetics in Chinese allograft recipients.

Objective To investigate the assciation between hypertriglyceridemia and insulin resistance in type 2 diabetes (T2DM).Methods One hundred and forty-nine T2DM patients were divided into hypertriglyceridemia (n =88) and normal-triglyceridemia (n =61) groups according to triglyceridemia levels,waist circumference (WC),waist to height ratio (WHtR),fasting blood-glucose (FPG),glycosylated hemoglobin (HbA1 c),uric acid (UA),total cholesterol (TC),fasting insulin (FINS) and homeostatic model assessment for insulin resistance (HOMA-IR) levels were measured and compared between the two groups.Results Compared with the normal-triglyceridemia group,The levels of WC,WHtR,UA,TC,FINS and HOMA-IR of patients in the thypertri-glyceridemia group were significantly higher (Hypertriglyceridemia group:WC(89.51 ±10.31) cm,WHtR 0.55 ±0.06,UA(316.95 ±88.50) μmol/L,TC(5.74 ± 1.72) mmol/L,FINS (8.63 ± 4.91) μU/L,HOMA-IR 4.48 ± 3.14 ; Normal-triglyceridemia group:WC (86.31 ± 7.98) cm,WHtR 0.53 ± 0.05,Uric(275.48 ± 88.36) μmol/L,TC (5.15 ± 1.13) mmol/L,FINS (6.20 ± 3.89) μU/L,HOMA-IR 3.38 ± 2.76; t value were 2.133,2.315,2.815,2.349,2.364,2.221 ; P ＜ 0.05) ; HOMA-IR correlated positively with WC (r =0.233,P ＜ 0.01),WHtR(r =0.268,P ＜ 0.01),BMI (r =0.161,P ＜ 0.05),FPG(r=0.442,P ＜0.01),AST(r=0.169,P ＜0.0S),UA (r =0.907,P ＜0.01),TG(r =0.220,P ＜0.01)and FINS(r =0.907,P ＜0.01).Conclusion T2DM with hypertriglyceridemia increased insulin resistance.

Objective To investigate the level of urinary protein in type 2 diabetic patients with different glucose excursion and investigation the effect of the glucose excursion on early diabetic nephropathy.Methods Fifty-six type 2 diabetes patients were divided into two groups by the level of glycosylated hemoglobin(HbA1c),good glycemic.Patients in control group with HbA1c ＜ 7.0％ and patients in poor glycemic control group with HbA1c ＜ 7.0％.Microalbuminuria,urine transferring (UTRF),α1-microglobulin (α1-MG) and 32-microglobulin(32-MG) were measured.All the patients were monitored using the continuous glucose monitoring system (CGMS),and mean amplitude of glucose excursions (MAGE) were analyzed.Patients were divided into two groups by MAGE,one group's MAGE was lower than 3.9 mmol/L,and another group's MAGE was higher than 3.9 mmol/L.Urinary proteins were measured and analyzed in the two groups.Results In the poor glycemic control group,the levels of microalbuminuria,UTRF and albunin/ creatinine(A/C) rate were (81.28 ±44.13) mg/L,(4.54 ± 1.54) mg/L and (22.17 ± 14.52) mg/mmol significantly higher than that in the good glycemic control group((21.63 ± 10.16) mg/L,(2.48 ±0.29) mg/L and (2.05 ± 0.76) mg/mmol; t =4.758,5.360,4.805 ; P ＜ 0.05).Fasting C peptide in the poor glycemic control group was (1.01 ± 0.13) ng/ml,significant lower than that in the good glycemic control group ((1.51 ± 0.21) μg/L;t =4.826;P ＜0.05).The levels of A/C rate,α1-MG and β2-MG in the group with MAGE above 3.9 mmol/L significantly higher than those in the group with MAGE below 3.9 mmol/L(t =4.358,8.641,12.702;P ＜ 0.05).Conclusion Both persistent hyperglycemia and blood glucose variability could influent diabetic nephropathy.

Objective: To observe the effect of Yishou Tiaozhi tablet(YSTZT) on lipid metabolism and aortic intimal atherosclerotic plaque coverage in rabbit model of experimental hyperlipemia and atherosclerosis.Methods: Thirty-two rabbits were randomly divided into four groups, Group A, B, C and D, 8 in each group. Forage with cholesterol and lipid plus 1.59 g/kg of YSTZT was fed to Group A every day;for Group B, 22.54 mg/kg gypenoside tablet was added to forage with cholesterol and lipid; for Group C, hyperlipid forage was given and for Group D, only ordinary forage was given. Biochemical parameters were measured and pathomorphological examinations were carried out 6 weeks later.Results: (1) YSTZT obviously lowered the levels of serum total cholesterol(TC), triglyceride(TG), atherosclerotic index(AI), apoprotein(ApoB), lipoprotein ［Lp(a)］, oxygen-low density lipoprotein cholesterol(ox-LDL), hydroxyproline(HYP), plasma Ca2+, thromboxane B2(TXB2), and increased the levels of serum high-density lipoprotein cholesterol(HDL-C), apoprotein A1(Apo A1), ApoA1 /ApoB, plasma 6-keto-PGF1α (P<0.01). (2) Pathomorphological examination showed that in Group A aortic intimal atherosclerotic plaque area and arterial intima thickness were obviously reduced, smooth muscle cell hyperplasia and elastic fibers were not seen.Conclusion: YSTZT can inhibit experimental hyperlipemia and atherogenesis. It is an ideal and effective medicine in preventing and treating hyperlipemia and atherosclerosis.

Objective To analysis long-term effects and safety of arsenic trioxide (ATO)-based induction and maintenance therapy in newly diagnosed acute promyelocytic leukemia (APL). Methods Retrospective analysis induction remission and post-remission treatment of 62 newly diagnosed APL patients was performed. These cases were followed up for 5 and 7 years. Results The complete remission (CR) rate was similar in ATO/all-trans retinoic acid (ATRA) induction group and ATRA/chemotherapy induction group.However, the former group has the shorter time to CR. The negative rate of PML-RARα fusion gene after induction without ATO was less than that of ATO group (86.2 % vs 56.3 %, P ＜0.05). After CR, the 5-year overall survival (OS) between ATO-base rotation maintenance group and chemotherapy-base rotation maintenance group showed that the former was (94.4±5.4) %, the latter is (45.5±10.2) %; 7-year OS was (52.5±23.7) % and (27.3±9.3) %; 5-year disease free survivals (DFS) was (94.7±5,5) % and (41.3±10.1) %; 7-year DFS was (52.6±23.7) % and (27.5±9.4) %. There was significant different in 5-year or 7-year OS and DFS between two groups (P ＜0.05). The relapse rates of the two groups in post-remission treatment were 14.7 % and 37.0 % (P ＜0.05). Conclusion ATO combined ATRA induction therapy increased the negative rate of PML-RARα fusion gene. ATO-base rotation maintenance improved long-term outcome and decreased the rate of relapse. Furthermore, ATO appeared to be generally safe and well tolerated.

Altitude ; Heart Rate ; Humans ; Oxygen ; Oxygen Consumption

Objective To study the genomic genotypes and variation of human enterovirus 71(EV71)infected infants in Guangzhou city,in 2008 and 2010.Methods Primers were designed on the basis of the genomic sequence of EV71 SHZH03 strain(AY465356)in the GenBank,and EV71genome amplified by RT-PCR.PCR-products were directly sequenced and the genomic nucleotide sequences were analyzed with the programs of Clustal W/X,DNASTAR and MEGA 4.1.Results 9strains of EV71 genome appeared to be 7405 bp in length.The genomic sequences of EV71Guangzhou strains were compared with those of EV71 in GenBank,which revealed that the homology with EV71 genotype C4a Fuyang strains ranged between 98%-99%.Homology with genotype C4b were 92%-94%,with genotypes C1,C2,C3 as 82%-83%,with genotypes B3,B4,B5 as 81%-83%and the homology with genotype A was 80%.When compared the VP1 genes of EV71 Guangzhou strains with genotypes A,B,C virus,we revealed that the highest homology was also with genotype C4a.When compared the VP1 amino acid sequences of EV71 Guangzhou strains with genotype A,B,C virus by Clustal W program,the results revealed that the amino acid residue Q at position 22 in VP1gene was transformed to H,while 213(S→T)and 1764(V→(Ⅰ))mutations in polyprotein were discovered.Conclusion Data from the sequences and phylogenetics analysis on those Guangzhou strains in 2008 and 2010 revealed that those isolates belong to genotype C4a,with the homology with Fuyang strains as 98%-99%.Mutation of amino acid residue H at position 22 in VP1 gene was discovered and the neutralizing antibody of EV71 might have been conversed by this residue.213(S→T)and 1764(V→Ⅰ)mutations in polyprotein were also discovered.