OBJECTIVE:To establish a method for the concentration determination of catecholamines in human urine. METH-ODS:After extracted by aluminum oxide,using 3,4-dihydroxybenzylamine as internal standard,HPLC-electrochemistry was per-formed on the column of Shim-Pack C18 with mixed solution [every 500 ml mixed solution containing ion-pairing reagents(octane sulfonate) 0.5 mmol,methanol 10 ml,0.06 mmol/L Di-n-butylamine 50 μl,sodium acetate anhydrous 2.0 g,citric acid 5.5 g, EDTA-Na2 60 mg and sodium chloride 584.4 mg,pH=3.5] at a flow rate of 0.8 ml/min,column temperature was 30 ℃,detection voltage was 750 mV,and injection volume was 40 μl. RESULTS:The linear ranges were 3.125-100 ng/ml for both norepinephrine (r=0.998 5)and epinephrine(r=0.999 2),lower limits of quantitation were 3.125 ng/ml;RSDs of within days and daytime were lower than 10%,method recoveries were 99.2%-101.6% and 98.9%-100.5%,extraction recoveries were 63.8%-66.8% and 60.5%-62.6%. CONCLUSIONS:The method shows strong specificity,high sensitivity and low detection cost,and can be used for the concentration determination of catecholamines in human urine.

Objective To investigate the effects of OGP (10-14) and its derivate H86A on bone metrology in rats with ovariecto-my-reduced osteoporosis. Methods Thirty-two female Sprague-Dawley rats, three months old, were randomly divided into 4 groups. Rats in groups 1 to 3 were bilaterally ovariectomized(OVX) and the others in group 4 were sham-operated. After the operation, rats in group 1 and group 2 were received derivate of OGP(10-14) H86A daily at different concentration. Group 3 were given placebo. Rats were killed after 12 weeks. Left tibias were disconnected and made into non-decalcified bone slice, and then they were detected and analyzed on indexes which were relative with bone metrology. Results Compared with Group 3, no other indexes except OV/BV was obviously different in rats with high dose H86A (P

Objective To investigate the association of ILK expression in human renal interstitium and the pathological injury of renal interstitium in the patients with chronic nephropathy.Methods The expressions of ILK,TGF?1,E-cadherin and fibronectin(FN) in renal tissue were investigated with immunohistochemistry and computer image analysis system in 49 patients with chronic kidney disease.According to the score of the renal interstitial pathologic injury,49 patients were divided into four groups: 4 in no injury group(the normal control group),17 in slight injury group,16 in mild injury group,12 in severe injury group.Results ILK was hardly detected in normal control group,and ILK was observed in tubulointerstitial area in 3 injury groups.The expression of ILK was prominent in tubular epithelial cells,next in the damaged tubulointerstitial area.A significant positive correlation was found between the expression of ILK in renal interstitial tissue and the degree of renal tubulointerstitial pathological injury(r=0.736),as well as that of TGF?1(P

Objective To investigate the anticancer effects and molecular mechanism of betulinic acid (BA)on Raji cells in vitro.Methods The effects of BA on the growth of Raji cells were studied by MTT assay.Apoptosis was assessed by Annexin-V/PI double-labeled cytometry.The influence on cell cycle was studied by flow cytometer.The cyclin D3 mRNA expression was checked by Western blotting and RT-PCR techniques.Results BA showed obvious inhibition on proliferation,as well as induction potency of apoptosis on Raji cells in vitro in a time-and dose-dependent manner by Annexin-V/PI double-labeled method.With the IC_(50)value for 24 h being(39.44?0.65)?g/mL,Raji cells treated with BA showed ac- cumulation in G_0/G_1 phase and reduction in the percentage of cells in S phase.The cyclin D3 mRNA ex- pression and protein were sharply decreased in Raji cells treated with BA.Conclusion BA could inhibit the proliferation of Raji cells by regulating the cell cycle that arrests cells at G_0/G_1 phase and induces apop- tosis of Raji cells.The antitumor effects of BA may be related to down-regulation of the expression of cy- clin D3.

Aged ; Antibodies, Monoclonal, Murine-Derived ; therapeutic use ; Antigens, CD20 ; metabolism ; Antineoplastic Agents ; therapeutic use ; Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; CD5 Antigens ; metabolism ; Cyclophosphamide ; therapeutic use ; Doxorubicin ; therapeutic use ; Humans ; Leukemia, Lymphocytic, Chronic, B-Cell ; drug therapy ; metabolism ; pathology ; Lymphoma, Large B-Cell, Diffuse ; drug therapy ; metabolism ; pathology ; Male ; Prednisone ; therapeutic use ; Receptors, IgE ; metabolism ; Rituximab ; Vincristine ; therapeutic use

Objective To assess the correlation between FFPN22 C1858T polymorphism and rheumatoid arthritis(RA)in Han people in Xiamen area by TaqMan-MGB real-time PCR．Methods A casecontrol study was carried out in Xiamen Han population．Their blood samples(100 RAs and 100 controls respectively)were collected and the PTPN22 C1858T polymnrphism was tested by TaqMan-MGB real-time PCR．Results①A technique of TaqMan-MGB teal-time PCR was established to investigate PTPN22 C1858T polymorphism；② Onlv 1858 C allele was presented in all the RAs and controls，and no T allele was detected．Conclusion There is no PTPN22 1858T allele in Han people in Xiamen area．It is suggested that there's no association between PTPN22 C1858T polymorphism and RA．

Objective To evaluate and analyse the morphological structure in late pregnancy women of pelvic hiatus by appli-cation of transvaginal three-dimensional ultrasound .Methods The 60 cases pregnant women who were checked pregnant weeks for 31 to 40 weeks from January 2012 to December 2014 came to our hospital were chosen as the observation group ,and other 60 cases women who were nulliparous women because of irregular menstruation at the same period treatment as control group .All patients underwent transvaginal three-dimensional ultrasound examination by observed the morphological structure of pelvic hiatus in each period ,and the research object of pelvic hiatus left and right diameter ,anteroposterior diameter and area were compared and meas-ured between the two groups .Results (1)The normal pelvic hiatus morphology was rhombic column crack-like structure ,but the observation group who had 43 .33% abnormal pelvic hiatus morphology and there was kind oval ;(2)The observation group were pelvic diaphragm hiatus of left and right diameter ,anteroposterior diameter and area were significantly larger than the control group in three conditions of the resting period ,anal contraction period and tension period ,and the difference was statistically significant(P< 0 .05) ;all the research object of the pelvic diaphragm hiatus left and right diameter ,anteroposterior diameter and area were de-crease in the anal contraction and increases in tension period for compared with the resting period ,so the difference was statistically significant (P< 0 .05) .Conclusion The three-dimensional ultrasound can be clearly observed the morphology of the female pelvic diaphragm hiatus ,and can be effectively evaluated .The late pregnancy women who will be significantly increases of pelvic dia-phragm ,occurs the relaxation phenomenon and some abnormal morphology for compared with nulliparous women .

Apolipoprotein A5(ApoA5)level and other indices were determined in patients with type 2 diabetes mellitus and healthy individuals.Compared to control group,ApoA5 level in the diabetic group was lower (P

Objective To analyze whether there are any gender differences in clinical features of acute type 1 diabetes mellitus.Methods Clinical data of 193 patients with acute type 1 diabetes mellitus were collected in our hospital from 2002 to 2007,and subjected to statistical analysis by SPSS.Results The ratio of male to female in all the subjects was 1.6:1.There was no significant gender difference in such clinical aspects as age,fasting blood glucose level,HbAlc concentration,positive percentage of serum autoantibodies against pancreatic islet or morbidity of diabetic neuropathy.In contrast to the males,the onset age was significantly younger,the diabetic duration longer,fasting serum C peptide level lower and the incidence of ketotic acidosis higher in female patients.The patients with onset age less than 14 years (puberty) did not show any significant gender differences in the above-mentioned clinical aspects.Among those with onset age more than 14 years,the females had significantly longer duration and lower fasting serum C peptide level than males.The male patients with onset age more than 14 years had significantly higher fasting serum C peptide level than those less than 14,whereas it was the same for total positive percentages of pancreatic islet autoantibodies and morbidity of diabetic neuropathy in females.Conclusion Gender differences may exist in some clinical features of type 1 diabetic patients with acute onset after puberty, which may partially result from the effects of sex hormones.

Objective To evaluate the effect of gamma irradiation on the proliferation,differentiation,and mineralization of murine osteoblastic cells,and to investigate the related molecular mechanism.Methods Osteoblastic cells were irradiated by different doses (0,0.5,1.0,2.0,5.0 Gy)of 137Cs γ-rays.Cell morphology was observed with a microscopy,cell viability was analyzed by MTT assay,and ALP activity was analyzed by the methods of enzyme histochemistry and PNPP.Meanwhile,gene expressions of ALP,osteocalcin (OC),collagen Ⅰ,osteoprotegerin (OPG) and receptor activator of nuclear factor-kB ligand (RANKL) were measured by semi-quantified RT-PCR.Results Cell viability decreased with the radiation doses over 1.0 Gy ( t =6.197 - 18.677,P ＜ 0.05 ).After radiation with a dose over 2.0 Gy,the cell number and the junctions of cell protrusions decreased,the cells had low refractivity and the activity and mineralization ability of ALP were also inhibited ( t =2.790 -2l.374,P ＜0.05).In addition,the expressions of ALP and OC mRNA were down-regulated significantly (t =3.563 -16.508,P ＜ 0.05) when the radiation dose was higher than 0.5 Gy,and the expressions of OPG,OPG/RANKL mRNA were down-regulated ( t =12.942,4.954,P ＜ 0.05 ) at 5 Gy.But the expressions of collagen Ⅰ and RANKL mRNA were not affected by irradiation.Conclusions The osteoblastic cells were significantly influenced by γ-irradiation,including morphological changes,inhibition of cell proliferation,differentiation and mineralization ability. Meanwhile,mRNA expressions of ALP and OC were downregulated.OPG/RANKL may be a main pathway of osteoblastic cell damage under high dose radiation.