[Objective]To retrospectively analyze the therapy comparison between the unilateral hinged external fixator assisting the internal fixation, soft tissue repair and reconstruction and routine surgery for elbow instability of fracture dislocation.[Method]A total of 117 cases of elbow fracture dislocation were collected from Jan. 2001 to Jun. 2005. Some patients were treated by unilateral hinged external fixator, and others were treated by routine surgery and casting external fixation.The JOA assessment was applied for the pain, function, arc of motion, articular instability and deformity of elbow joint before surgery and after operational follow-up. [Result]Eighty-six cases were followed up by telephone and mail appointment.The average follow-up time was 18.6 months (from the range of 8 months to 30 months).The function and arc of motion of two group patients were assessed by JOA in post-operational follow-up, showing statistical significant difference (P0.05). The total assessment score between two groups indicates statistical significant difference.[Conclusion]The operation in combination with unilateral hinged external fixator for treating elbow instability of fracture dislocation will enhance lateral stability of elbows, guaranteen early safe elbow function exercises, facilitate stable environment for ligaments healing,suggesting a good subsidiary operational method.

Objective To study the chemical constituents of the acid hydrolytic products from the stems and leaves of Panax quinquefolium. Methods The stems and leaves of P. quinquefolium were hydrolyzed with acid;Isolation and purification were carried out by various chromatographic techniques,such as silica gel and so on. Compounds were identified and elucidated by spectral and chemical methods. Results Eight compounds were obtained from the acid hydrolytic products in the stems and leaves of P. quinquefolium and identified as 20 (S)-panaxadiol (Ⅰ),20 (S)-protopanaxadiol (Ⅱ),20 (R)-protopanaxadiol (Ⅲ),20 (S)-panaxatriol (Ⅳ),24 (R)-ocotillol (Ⅴ),20 (R)-protopanaxatriol (Ⅵ),20 (R)-dammarane-3?,12?,20,25-tetrol (Ⅶ),and 20 (R)-dammarane-3?,6?,12?,20,25-pentol (Ⅷ). Conclusion Compounds Ⅰ-Ⅷ are the derivates of the aglycones of ginsenosides,isolated from the acid hydrolytic products from the stems and leaves of P. quinquefolium for the first time. Among these compounds,Ⅳ,Ⅶ,and Ⅷ are discoverd from the roots,stems,leaves,fruits,and buds of P. quinquefolium for the first time. Compound Ⅶ is discovered and reported that it is the derivate of the aglycone of protopanoxadiol ginsenoside,with the conspicuous anticancer activity from the fruits of P. ginseng for the first time.

Aim To study the content and clinical significance of serum endothelin-1(ET-1)in patient with malignant tumors. Methods The contents of serum ET-1 in 85 patients with malignant tumors,30 patients with benign diseases and 30 normal indivaduals were detected by radioimmunoassay. Results (1)The mean concentrations of serum ET-1 in normal individuals and in non-tumor patients were (46.9± 23.1)μ g/L and (51.1± 30.9)μ g/L,respectively, while in patients with malignant tumors it was (190.1± 135.2～ 382.4± 190.1)μ g/L. (2)There was no significant difference between the mean serum contents of ET-1 in normal individuals and non-tumors pstients(P∧ 0.05),but the level of serum ET-1 in patients with malignant tumors were significantly higher than that in above two groups(P∨ 0.001). (3)When the mean content plus twice standard deviation of serum ET-1 in normal individuals was as a threshold value,that is ,the value was defined as the positive clinical value to diagnose cancer, the positive rates of patients with different malignant tumours were 72％ ～ 100％ . Conclusion Serum ET-1 contents could be used as a better tumor index for maligant tumor screening and accessory diagnosis.

Objective To investigate the frequency distribution of proprotein convertase subtilisin/kexin 9 (PCSK9) gene I474V polymorphisms and their relationship with patients with ischemic stroke (IS)of Uygur and Han ethnic groups in Xinjiang Uygur Autonomous Region.Methods The I474V polymorphism was identified by polymerase chain reaction-restriction fragment length polymorphism (PCRRFLP) in 407 patients with IS(including 219 Hans and 188 Uygurs)and 425 health controls (including 255 Hans and 170 Uygurs),and some specimens were sequenced.Results (1) Between IS group and control group,the genotypes Ⅱ and Ⅳ had no statistically significant differences in the levels of triglycerides (TG),high-density lipoprotein cholesterol (HDL-C) ; Total cholesterol (TC),low-density lipoprotein cholesterol (LDL-C) levels had statistically significant differences; LDL-C levels had also statistically significant differences.Between IS and control groups,TC,LDL,HDL-C levels of genotype Ⅱ showed statistically significant difference.In the IS group,TC,LDL-C levels of Ⅳ genotype were significantly higher than the control group,the difference being statistically significant.(2) There was statistically significant difference in the genotype distribution between IS and control groups (9.5％ (77/814) vs 4.5％ (38/850),x2 =16.09,P =0.000).And the distribution of allele frequency was statistically different (18.9％ (77/407) vs 8.9％ (38/425),x2 =17.38,P =0.000).(3) The differences of I474V loci Ⅳ genotype frequency distribution in Xinjiang Uygurs and Hans were statistically significant (27.7％ (52/188) vs 11.4％ (25/219),x2 =17.40,P =0.000; 12.9％ (22/170) vs 6.3％ (16/255),x2 =5.57,P =0.018) ; So did the Ⅴ allele frenquency distribution (13.8％ (52/376) vs 5.7％ (25/438),x2 =15.58,P =0.000; 6.5％ (22/340) vs 3.1％ (16/510),x2 =10.44,P =0.001).(4) There was statistically significant difference in the genotype distribution and allele frenquency distribution between IS group and control group in the Xinjiang Uygurs (27.7％ (52/188) vs 12.9％ (22/170),x2 =11.79,P =0.001 ; 13.8％ (52/376) vs 6.5％ (22/340),x2 =10.44,P =0.001) ; But there was no statistically significant difference in the Hans.Conclusions Ⅱ and Ⅳ genotypes are dominant in the I474V polymorphism loci of PCSK9 gene.The genotype of PCSK9 gene I474V polymorphism is correlated with increasing serum levels of TC and LDL-C.I474V polymorphism is associated with cerebral IS course in Xinjiang region.There is statistically significant difference in the genotype I474V distribution between Uygur and Han groups.I474V polymorphism has a relationship with the occurrence of IS in Xinjiang Uygurs.Ⅳ may be a susceptible genotype and Ⅴ may be a genetic susceptible allele of the Xinjiang Uygurs.

BACKGROUND: The lymphocyte-specific recombination-activating gene (RAG) 1 and 2 are essential for initiating V (D)J recombination events in both T and B cells. In addition to initiating V(D)J recombination, RAG-mediated transposition has also been proposed to contribute to chromosomal translocations and lymphoid malignancy, but the mechanism underlying this activity remains poorly understood.OBJECTIVE: To investigate RAG gene,DNA repair factors Ku70/Ku80 and terminal deoxynucleotidyl transferase(TdT)mRNA expression and T cell receptor(TCR) gene recombination in human leukemia and lymphoma cell lines.DESIGN: Repeated-determined experiment.SETTING: Institute of Molecular Immunology, College of Biotechnology,Southern Medical University.MATERIALS: Four human T leukemia and lymphoma cell lines (Jurkat,Molt-4, HuT-102, 6T-CEM) ,two Burkitt's lymphoma(Raji and Daudi) and two myelogenous leukemia cell lines (HL-60 , K-562) were cultured in complete growth medium (Hyclone,USA) , penicillin/streptomycin(50 U/mLand 50 mg/L) at 37 ℃ in a humidified atmosphere in 0.05 volume fraction of CO2. Jurkat and 6T-CEM were bought from SIBS,CAS(Institute of Biochemistry and Cell Biology,Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences). The other cell lines were conserved by Institute of Molecular Immunology, College of Biotechnology, Southern Medical University.METHODS: The experiment was carried out in Institute of Molecular Immunology, College of Biotechnology, Southern Medical University from October 2005 to January 2006.Reverse transcription-polymerase chain reaction (RT-PCR)was performed to examine the expression of RAG1,RAG2,terminal deoxynucleotidyl transferase(TdT), Ku70 and Ku80 genes,reparative factors,in pathway of non-homologous end joining (NHEJ);Nested and semi-nested PCR reactions were performed with locus-specific primer sets to determine TCR Dβ-Jβ signal joint T-cell receptor excision DNA circles (sjTRECs); Ligation-mediated PCR(LM-PCR) assay was used to detect the recombinational intermediates ds RSS breaks of TCRβ locus with primers specific for the flanking sequences of both Dβ1 and Dβ2.Thus,gene expression during initiating V (D)J recombination and generation of TCR gene recombination intermedium could be known.MAIN OUTCOME MEASURES: RAG gene,DNA repair factors Ku70/Ku80 and TdT mRNA expression and TCR gene recombination in human leukemia and lymphoma cell lines.RESULTS: Determination results by RT-PCR showed that RAG1 was expressed in four T cell lines and was not expressed in two Burkitt's lymphoma and two myelogenous leukemia cell lines. RAG2 and TdT were only expressed in Jurkat,Molt-4 and 6T-CEM, but TdT expression in 6T-CEM was very low. Except that Ku80 expression was not detectable in HL-60,Ku70 and Ku80 were expressed in all the cell lines. However, Determination results of TCR gene in T cell lines recombination intermedium showed that the TCR gene recombination process was not occuring in all the RAG-expression T cell lines. Ongoing TCR gene recombination was only found in Jurkat, which represent a mature stage of T cell development. In addition,characteristic junctional diversity of signal joints was observed in DNA isoated from Jurkat.CONCLUSION: T leukemia and lymphoma may be more likely to have a relation with RAG.The results give a clue that Jurkat can probably provide an ideal cell line modle for studying RAG and T cell lymphomagenesis.

In order to improve the clinical efficacy of the umbilicus fumigation method, the ancient literature with the heat control of umbilicus fumigation method involved is collected extensively and analyzed systematically, and the heat control, precautions and contraindications of this method are discussed. In association with the cases and the present clinical experience, the main factors to the heat control are introduced, such as preparation of doughnuts, filling quantity, size of moxa cone and numbers of moxa cones so that the clinical application of the umbilicus fumigation method can be promoted and enhanced.
Biomedical Research ; China ; Drugs, Chinese Herbal ; chemistry ; pharmacology ; Fumigation ; History, Ancient ; Hot Temperature ; Humans ; Medicine in Literature ; Medicine, Chinese Traditional ; history ; methods ; Umbilicus ; physiopathology

Objective:Nuclear apoptosis-inducing factor 1(NAIF1) is a novel apoptosis gene cloned in laboratory. To analyze the binding proteins of NAIF1 by pulldown method, the fusion expression vector of truncated human nuclear apoptosis-inducing factor 1〔NAIF1(73-327)〕 was constructed, were expressed and purified the recombinant GST-NAIF1(73-327) fusion protein in E.coli.Methods:The cDNA encoding human NAIF1(73-327) was amplified by PCR and cloned into pGEX-KG vector. The GST-NAIF1(73-327) fusion protein was expressed in E.coli and purified by affinity chromatography. The purified protein was detected by SDS-PAGE, Western blot and ESI-Q-TOF-MS/MS.Results:A prokaryotic expression vector of GST-NAIF1(73-327) was constructed and the GST-NAIF1(73-327) fusion protein was expressed in E.coli at high level. SDS-PAGE analyses indicated that the purified protein was about 53 kD. Western blot and MS/MS analyses verified the recombinant fusion protein.Conclusion:An efficient method for obtaining recombinant GST-NAIF1(73-327) fusion protein had been established and it could be used for further studies on the structure and function of NAIF1.

Objective To study the stability of Alprostadil Injection,and provide theoretical basis for its production,packaging,storage,and transportation conditions.Methods The contents of PGE1 and A1 in Alprostadil Injection were determined by HPLC method through strengthen test,accelerated test,and longterm test.The stability of Alprostadil Injection was investigated.Results Linearity,precision,stability,and recovery rate of E1 and A1 met the requirements;Placed for 10 d under high light and high temperature conditions,the color was obviously deepened,the pH value was almost unchanged,the content decreased significantly and degradation of related substances increased significantly;At 25 ℃ and after 6 months of acceleration test,the PH value decreased slightly and the content changed obviously.Three batches of samples were stored at 4℃ and long-term tested after 12 months,its appearance traits,related substances,and content of the indicators were in line with the relevant requirements.Conclusion Alprostadil Injection is unstable to light and heat,easy degradation,this product should be stored in dark and cold conditions,with the validity for one year.

Objective To explore the effectiveness of whole genome amplification technology in DNA typing of trace samples.Methods Simulated trace samples which contain 1～20 cells were prepared by micromanipulation.Whole genome amplification was added before conventional PCR-STR typing step,to compare the effectiveness of PEP and MDA in DNA typing of trace samples from four aspects i.e.allele imbalance,allele drop-out,locus drop-out and pseudo allele (which contains the stutter peak).Results Amplification efficiency of MDA was higher than PEP method,but allele drop-out and pseudo allele were more frequently detected.Correct DNA typing rate of PEP is higher than MDA method,however,advantaged amplification of small fiagments DNA is more obvious.Conclusion MDA method is not suitable for the current STR typing.When the absolute amount of trace samples is quite small,we couldconsider using the PEP method to enhancethe sample quantity to meet the requirement of repeat testing.At the same time it could encounterthe failure of the large DNA fragments.

Objective To explore the association between single nucleotide polymorphisms (SNPs) in WNK1 gene and ischemic stroke in Uygur population. Methods Ten tagging single nucleotide polymorphisms (tSNPs) of the WNK1 gene in 295 ischemic stroke patients and 318 control subjects were genotyped,and the association between these tSNPs and ischemic stroke were conducted.The 10 tSNPs were rs3858703, rs11611246, rs7305065, rs1990021, rs34408667, rs12309274, rs1012729, rs956868,rs12828016 and rs953361. They were determined by the Multiplex SNaPshot platform. All data were analyzed using t-test,x2-test and Logistic regression. Linkage disequilibrium and Haplotype were analyzed by Haploview software.Results There were no significant differences between cases (25.6％) and controls(30.0％ ) of the 10 tSNPs in WNK1 gene.When the samples were further stratified according to gender,rs11611246 T allele was found to be associated with a reduced risk of ischemic stroke,with a per-allele OR of 0.448(95％ CI 0.269-0.746,P =0.002) in female cases than in female controls. The significance remained after adjustment for the covariates of age,and for the covariates of age,BMI,cigarette smoking,alcohol drinking,hypertension,diabetes and hyperlipidemia.In addition,no association between the other 9 tSNPs and ischemic stroke were found in Uygur subjects.Conclusion The study reports a new genetic variant,rs11611246,located in the fourth intron of the WNK1 gene,decreasing the risk of ischemic stroke in Uygur population.The T allele might be the protecting factor of ischemic stroke in female Uygur.