Objective:To establish an HPLC method for the determination of the related substances in nimesulide granules. Meth-ods:An Agilent HC-C18(250 mm ×4.6 mm,5 μm)column was used, the mobile phase was composed of acetonitrile-0.01 mol ·L-1 ammonium dihydrogen phosphate (adjusting pH to 7. 0 with ammonia) (40:60) and the detection wavelength was 230 nm, the flow rate was 1. 0 ml·min-1 ,the column temperature was 30℃, and the injection volume was 20μl. Results:The linear range of nimesu-lide was 0. 10-0. 30 mg·ml-1(r=0. 999 9). Nimesulide and its related substances could be well separated with the peak separation degree above 2. 0. The limit of detection and the limit of quantification was 0. 3 ng and 1. 0 ng, respectively. Conclusion:The method is simple, accurate and reproducible, which can be used for the quality control of nimesulide granules.

Objective To evaluate the quality of the randomized controlled trials (RCTs) published in two key Chineze journals on clinical nutrition.Methods The articles published in CHINESE JOURNAL OF CLIN-ICAL NUTRlTION and PARENTERAL & ENTERAL NUTRITION from 2000 to 2008 were reviewed and the RCTs were identified according to criteria of the handbook of Cochrane Collaboration.The Jadad scale was used to evalu-ate the quality of these RCTs.Results Totally 238 RCT articles were published in these two journals in this peri-od.The Jadad score of all RCT articles was 1.65±0.82.Twenty-eight articles (11.76%) were of high quality and only 5 articles (2.10%) were identified 5 points.There were some problems in the RCTs design,conduction and analyses included unclear randomization methods,poor comparison,lack of inclusion and exclusion criteria.less blinding employment,unclear withdrawals and dropouts,and improper sample size.Conclusion The design and quality control of Chinese clinical nutrition RCTs still have some problems and require further improvement.

Objective To observe the expression of IGF-1 in the peri-hematomal brain region of Intracerebral Hemorrhage(ICH) patients,and to investigate the relationship among IGF-1,excessive and depletion syndrome of stroke.Methods 28 patients were evenly and randomly recruited into 3groups:Yin excessive group,Yang excessive group and depletion group.Additional 6 persons of normal death within 3 hours were taken their brain tissue.The IGF-1 expression was detected with Western blotting method.The correlation among the expression of IGF-1,excessive and depletion syndromes were observed.Results The expression of IGF-1 in the peri-hematomal brain region of ICH patients significantly increased in comparison with the normal control group (P=0.00).The expression of IGF-1 was significantly different among Yang excessive,Yin excessive and the depletion syndromes [ (0.696±0.111)、(1.151 ±0.185)、(1.697±0.108),P＜0.01],with the expression of IGF-1 of depletion syndrome ranked the highest,followed by Yin excessive and Yang excessive syndrome.Conclusion The expression of IGF-1 could reflect the degree of brain impairment.

Objective To study the relationship of placental expression of leptin and disease development in patients with pre-eclampsia.Methods The placental expression of leptin gene was determined in gestational hypertension(10 cases),mild pre-eclampsia(10 cases),Severe pre-eclampsia(10cases)and normal pregnant women(15 cases,control group)by reverse txanscription/polymerase chain reaction(RT/PCR).Meanwhile,24 hour urine protein and mean arterial blood pressure(MAP)were detected in patients with pre-eclampsia.Results The expression of leptin mRNA in placenta were significantly higher in severe and mild pre-eclarnpsia than that in normal pregnant women(0.507 ±0.036,0.476±0.023vs 0.441 ±0.030)(P＜0.01),meanwhile,in the severe pre-eclampsia was higher than that in the mild preeclampsia(P＜0.05).The difference was not significant between the gestafional hypertension(0.463±0.024)and the normal pregnant women(P＞0.05).There was a positive correlation between the placental leptin mRNA expression levels in pre-eclampsia and the 24 hour urine protein and MAP (P＜0.05).Conclusions The placental leptin mRNA expression levels in pre-eclampsia increase.The pre-eclampsia women placental hptin mRNA expression levels correlate with pathogenetie condition.The placental leptin mRNA expression levels in pre-eclampsia correlate,with disease development.

Objective: To amplify two human mutant CD59 eukaryotic expressing systems and investigate mutant CD59 functional activity. Methods: Mammalian expression vector PLATER of mutant CD59 cDNAs was transfected into CHO together with the pcDNA by lipofectamine,which confered resistance to G418(400 ?g/ml). The positive clones were tested by FIH. Activity of both mutants CD59 was determined by BCECF release assay. Results: Mutant CD59 cDNAs subcloned into the mammalian expression vector PLATER and transfected CHO together with the pcDNA,which confered resistance to G418. The positive clones were tested by FIH.Activity of both mutants CD59 before and after glycation was determined by BCECF release assay,both of them could restrict MAC formation ,and glycation could inhibit CD59. Conclusion: A eukaryotic system that expressing mutant CD59 cDNA was successfully set up.It was found that mutant CD59 could restrict MAC formation,and glycation could inhibit mutant CD59. These would be helpful for the furthur study of link mutant CD59 and the vascular proliferative of diabetes.

Objective To explore the optimal method of anesthesia in radical resection of gastric cancer by comparing the effects of two anesthesia techniques on the balance of Th1/Th2 in order to provide evidence for clinical anesthesia manage-ment.Methods Forty patients who underwent elective radical resection of gastric cancer were randomized into two groups:in-halation anesthesia group(group S)and total intravenous anesthesia group(group P),in which sevoflurane and propofol were ad-ministered for the induction and maintenance of anesthesia,respectively.The general data of the patients were collected,the tis-sue type of tumors obtained and the fluid infusion and blood loss volumes recoded.The VAS score was obtained 1 h,6 h and 5 d after the surgery.Before the induction of anesthesia,6 h and 5 d after surgery,the blood samples were drawn to determine the serum levels of IL-1β,IFN-γ,TNF-α,IL-2,IL-6 and IL-10.Flow cytometry was used to detect the proportion of CD3+CD8-IFN-γ+ and CD3+CD8-IL-10+ cells and the Th1/Th2 ratio was calculated.Results The level of IL-6 was increased post-sur-gically in groups S and P(P<0.05).There were no significant changes in the levels of IL-1β,IL-2 and IL-10 in groups S and P and in the levels of TNF-αand IFN-γ,and the Th1/Th2 ratio in group S between before the induction of anesthesia and different time points after the surgery(P>0.05).The levels of TNF-αand IFN-γ,and the Th1/Th2 ratio were significantly increased in group P 5 d after the surgery(P<0.05).Conclusion Total intravenous anesthesia with propofol can enhance Th1 response and it is an ideal anesthetic method for radical resection of gastric cancer.

BACKGROUND:Healing time and plaster used in fixed position and fixed time are different between distal radius fractures and scaphoid fracture. When both fractures occur simultaneously, you cannot choose a fixed position and determine a fixed time. One-stage internal fixation for the distal radial fractures and scaphoid fractures simultaneously can obtain a good function. OBJECTIVE:To retrospectively analyze the effects of titanium locking compression plate and Herbert screw fixation for fresh unstable distal radial fractures with scaphoid fracture. METHODS:A total of 12 patients with fresh unstable distal radial fractures combined with scaphoid fracture were treated in the Shanxi Dayi Hospital from November 2011 to June 2014. Al cases received open reduction and locking compression plate fixation of the distal radius, open reduction of scaphoid fracture or percutaneous Herbert screw fixation. Fracture healing was observed during folow-up. At 6 months after treatment, wrist joint function was evaluated with modified McBride score. Range of motion of palmar flexion, dorsiflexion, ulnar deviation, radial deviation, pronation and supination and grip strength were measured. The distal radial shortening (difference in height of styloid process of radius and ulna), and angles of ulnar deviation and palmar tilt were measured with X-ray films. The data of healthy side and affected side were compared. RESULTS AND CONCLUSION:(1) 12 cases were folowed up for 6-24 months. (2) The distal radius and scaphoid fractures healed. The healing time of distal radius was 6-12 weeks, with an average of seven weeks. Healing time of scaphoid fracture was 3-6 months, with an average of 4.2 months. (3) Wrist score was evaluated using modified McBride scoring criteria at 6 months after treatment. There were excelent in 5 cases, good in 6 cases, and average in 1 case, with the excelent and good rate of 92%. (4) No significant difference in range of motion of palmar flexion, dorsiflexion, ulnar deviation, radial deviation, pronation and supination and grip strength, angles of ulnar deviation and palmar tilt, difference in height of styloid process of radius and ulna and modified McBride score was detected between healthy side and affected side (P > 0.05). (5) The median nerve injury in two patients was recovered within 6 months after postoperative exploration decompression. No complications appeared, such as infection, dorsal muscle tendon irritation symptoms, carpal tunnel syndrome, and internal fixation failure. (6) These findings confirm that fresh unstable distal radial fractures with scaphoid fractures can be treated with open reduction of the distal radius and locking plate fixation, open reduction of scaphoid bone or percutaneous Herbert screw fixation, with reliable fixation, high fracture healing rate, and good wrist function recovery rate; the repair effect is satisfactory.

The authors through the analysis on the state food and drug administration for clinical drug agency qualification , the ethics committee to run the problem:ethics committee incomplete management system and SOP;Familiar with work system and review process to be;Track review is not standard;Pilot project information manage-ment confusion;Ethics committee hardware substandard housing .And puts forward the following measures to solve these problems , reasonable adjustment of organization structure , strengthen the system construction , standard re-view process , establish 3 levels training model and improve office conditions .

The natural history of chronic HBV infection is diverse and variable, ranging from inactive carriers to progressive chronic hepatitis B ( CHB), cirrhosis and hepatocelluar carcinoma.It is estimated that 93 million people are chronically infected with HBV and 20 million cases suffering from chronic hepatitis B in China.Hepatocelluar carcinoma has been the second leading cause of death for male in China.Liver cirrhosis and HCC which have high mortality and morbidity have become the heavy burden for the limited medication resource of China.Here the current clinical applications and consensus progression based on antigen and nuclear acid detection were acknowledged.The reasonable application as well as appropriate clinical interpretation are emphasized indicating that laboratory medicine practitioners should be more actively involved in clinical diagnosis and treatment.More efforts and contributions should be made by the laboratory medicine practitioner for optimizing clinical management of HBV-related diseases in future.

Objective:To explore the association of serum leptin(LEP)level in patients of type 2 diabetes mellitus and periodontitis with clinical periodontal indexes.Methods:30 healthy subjects(group A),30 chronic periodontitis patients(group B)and 30 type 2 diabetic patients with chronic periodontitis(DMCP)(group C)were included.Probing depth(PD),attachment loss(AL),plaque index (PLI)and bleeding on probe(BOP)were examined.High performance liquid chromatography detection was used to determine the ex-pression of the fasting plasma glucose (FPG),glycated hemoglobin(HbA1c)in plasma samples.Serum level of LEP was measured by ELISA.Results:Levels of serum HbA1c,FPG and LEP in group C were significantly higher than those in group B and A(P <0.05);serum LEP in group B were significantly higher than those in group A(P <0.05).However,no virtual disparity was found in serum HbA1c and FPG between group A and B(P >0.05);The r values of plasma LEP level to PD,AL,PLI and BOP were 0.506,0.551, 0.519 and 0.582 respectively(P <0.05).Conclusion:The LEP level is elevated in patients with DMCP.Circulating LEP level is positively related to PD,AL,PLI and BOP.