1.Synonymous Codon Usage in Pichia pastoris
Xiang ZHAO ; Ke-Ke HUO ; Yu-Yang LI
Chinese Journal of Biotechnology 2000;16(3):308-311
According to the synonymous codons used in 28 open reading frames from Pichia pastoris, the codon usage in this species was calculated and 19 codons have been inferred to be its optimal codons. The results show that pattern of the codon usage in P. pastoris is similar to that in S. cerevisiae and in K. lactis except for the synonymous codon of glutamic acid, which may be the special bias of P. pastoris.
3.Clinical analysis in prone and supine position in percutaneous nephrolithotomy (report of 356 cases)
Dong LV ; Xiang HUANG ; Ke DOU ; Yin XIANG ; Xuhui WAN
The Journal of Practical Medicine 2016;32(15):2486-2488
Objective To evaluate the advantages and disadvantages of different puncture positions in percutaneous nephrolithotomy. Methods Three hundred fifty-six patients who underwent PCNL were analyzed from March 2012 to October 2015. The passage caliber was 16F-20F. There were 217 cases in prone position and 139 cases in supine position. Results The successful operation in PCNL was 354 cases , while the remaining 2 cases were performed by open surgery. The primary stone clearance rate was 75.5%. The additional PCNLs were performed in 23 cases, and 63 cases of residual calculi were treated by ESWL. 11 patients were treated due to infection or bleeding by the additional PCNLs. There were 3 cases with massive hemorrhage which were treated by Interventional embolization therapy , 12 cases in postoperative fever , no renal resection , no intestinal injury, no deaths. There was no significant difference in stone clearance rate and complication rate between the two groups. Conclusion The puncture position of PCNL can be optional based on the stone size , stone location, degree of hydronephrosis ,and patient′s cardiopulmonary condition individually.
4.Ileus decompression tube combined with somatostatin for the treatment of severe acute pancreatitis
Shengguang YANG ; Ke SU ; Yanhui ZHU ; Feng CHEN ; Huaguo XIANG
Chinese Journal of Emergency Medicine 2013;22(11):1274-1277
Objective To analyze the effects of Ileus tube (IT) along with somatostatin (SS) used for treatment of patients with severe acute pancreatitis (SAP).Methods Under conventional treatment,75 patients with SAP were divided into three groups as per different additional treatments,namely group A (IT and SS),group B (nasogastric decompression tube and SS),and group C (IT alone),and the therapeutic efficacies of those treatments were evaluated in respects of improvement of physical signs and symptems,dynamic changes in decompression drainage and prognosis.Results Therapeutic efficacy was 100% in group A,84% in group B and 80% in group C.The difference between group A and B was x2 =8.26 (P <0.01) ; group B vs.C was x2 =0.38 (P > 0.05).The physical signs and symptoms in group A were improved more rapid than those in group B and C (P < 0.05),but there was no significant differences in those signs and symptoms between group B and group C (P > 0.05).In comparison of decompression drainage,the t value of group A vs.group B was 2.14,group B vs.group C was 3.83,and group A vs.group C was 2.23 (P < 0.05).As cure rate of patients with SAP in hospital on the 14th day,rate of transferring to surgical treatment as a last resort and mortality in group A were compared with group B and C,the differences were statistically significant (P < 0.05),while group B vs.C,the difference was not statistically significant (P > 0.05).Conclusions Application of IT combined with SS can significantly improve the condition of patients with SAP,thereby reducing the operation rate,shortening hospital stay,lowering mortality and improving the outcome,and it is worthy of clinical popularization.
5.Multivariate analysis for risk factors of bile leakage after hepatectomy
Xiang CHENG ; Ke LI ; Yuzhe WU ; Qichang ZHENG
Chinese Journal of General Surgery 2013;28(11):850-853
Objective To analyse risk factors for bile leakage after liver resection.Methods Between January 2011 and December 2012,469 patients underwent elective hepatectomy.We prospectively collected and retrospectively analyzed demographic data,pathological variables,and perioperative variables.Univariate analysis screened the related factors of bile leakage after liver resection.Multivariate analysis identified the independent risk factors of postoperative bile leakage.Results 469 patients were included in the analysis.The prevalence of bile leakage was 22.6% (n =106).Univariate analysis identified the following risk factors as male gender,portal hypertension,steatosis,cirrhosis,ChildPugh grade,ascites,operative time,intraoperative transfusion,intraoperative blood loss,portal triad clamping,microwave solidification,lymphadenectomy,number of tumor,tumor margin,tumor capsular,diameter of tumor,portal vein invasion or portal branch thrombosis,number of abdominal drains.Multivariate analysis identified 4 independent risk factors for postoperative bile leakage:Cirrhosis [OR =13.2 (2.3,76.9),P =0.004],steatosis [OR =73.1 (17.7,301.5),P < 0.001],infusion volume of the surgery day [OR=1.0 (1.0,1.0),P=0.019] and diameter of tumor [OR=1.2 (1.1,1.3),P=0.003].Conclusions Cirrhosis,steatosis,transfusion volume of the surgery day,and tumor size were risk factors for bile leakage after major liver resection.
6.Evaluation of reproducibility and validity of food group intakes measured by a food frequency questionnaire for Chinese men
Dake LIU ; Ke YU ; Yuting TAN ; Rurong FANG ; Yongbing XIANG
Fudan University Journal of Medical Sciences 2010;37(1):20-24
Objective To evaluate the factors influencing the reproducibility and validity of food group intakes measured by a food frequency questionnaire (FFQ) for Chinese men. Methods A total of 214 adult men were randomly selected from the Shanghai Men Health Study (SMHS), an ongoing cohort study conducted in urban Shanghai. Each subject who had completed the first FFQ survey at recruitment took 24-hour dietary recall (24-HDR) surveys which were conducted once a month for 12 consecutive months and a second FFQ at the end of the study. Two FFQs were administered approximately 1.2 years apart. The food items listed in FFQ and obtained from 24-HDR were categorized into 11 food groups. The factors influencing the reproducibility of the FFQ was assessed by comparing the Pearson correlation of intake levels from the two FFQs, while the factors influencing the validity was evaluated by comparing intake levels from the second FFQ with the multiple 24-HDRs. Results A total of 195 men completed all 12 times of 24-HDR and twice FFQ surveys. The median Pearson correlation coefficients of the food groups between the two FFQs in older vs younger age group were 0.62 vs 0.50;in higher vs lower education level group were 0.58 vs 0.50;in higher vs lower income group were 0.51 vs 0.50;in higher vs lower BMI group were 0.50 vs 0.49. The median Pearson correlation coefficients of the food groups between the second FFQ and 24-HDRs in older vs younger age group were 0.61 vs 0.45;in higher vs lower education level group were 0.49 vs 0.47;in higher vs lower income group were 0.43 vs 0.57;in higher vs lower BMI group were 0.48 vs 0.51. Conclusions Age is the main factor influencing the reproducibility of the food group intakes by a FFQ used in the SMHS, while the factors influencing the validity are age and family income.
8.Role and effect of water in wet bonding.
Ya-ke WANG ; Cui HUANG ; Xiang-rong CHENG
Chinese Journal of Stomatology 2008;43(10):637-639
9.Two hundreds and thirty-eight cases of kidney-yang deficiency syndrome treated with fine fire needle.
Chinese Acupuncture & Moxibustion 2011;31(11):1056-1056
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10.Th1/Th2 cytokine imbalance in patients with lupus nephritis
Ke LIANG ; Huafeng LIU ; Liqiong LIAO ; Kaifu XIANG ; Guihua ZHOU
Chinese Journal of Rheumatology 2003;0(11):-
Objective To investigate the state of Th1/Th2 cytokine imbalance in patients with lupus nephritis (LN) and its role in the pathogenesis. Methods Plasma level of interleukin-18 and interleukin-13 in 18 patients with active LN and 16 normal controls were measured by enzyme-linked immunoadsordent assay (ELISA). IL-18 and IL-13 expression in the renal tissues from 18 patients and 6 normal renal tissues were also detected by immunohistochemical assay. The ratio of plasma and renal IL-18/IL-13 was then calculated. Results Plasma levels and renal expression of IL-13 and IL-18 in patients with LN were increased significantly compared to those of normal controls (P0.05). The ratio of renal IL-18/IL-13 was not significantly different among all types of LN and normal controls. The ratio of plasma IL-18/IL-13 was positively correlated with LN renal tissue activity index (AI), but no correlationship could be found in renal IL-18/IL-13 ratio. Conclusion It seems that the immune disturbance in systemic lupus erythematosus (SLE) can not be simply divided into Th1 predominant and Th2 predominant. It seems far complicated than this Th1/Th2 paradigm. It may be affected by the state of disease activity, the lesion location and the type of pathology.