1.Mutation analysis of the STAT3 gene in a patient with hyper-IgE syndrome
Zhongtao LI ; Sheng WANG ; Xi WANG
Chinese Journal of Dermatology 2015;48(10):735-737
Objective To analyze mutations of the STAT3 gene in a patient with hyper-IgE svudrome (HIES) mainly manifesting as multiple cold abscesses.Methods Clinical data were collected and blood samples were obtained from a 17-year-old male patient with HIES and his parents.Genomic DNA was extracted and subjected to PCR for the amplification of the entire coding region and splice sites of the STAT3 gene followed by bidirectional sequencing.Results A heterozygous missense mutation C1427T,which caused a codon change from TCC to TTC and resulted in the substitution of serine by phenylalanine at amino acid residue 476 (p.S476F), was found in exon 16 encoding the DNA-binding domain in the STAT3 gene in the patient, but not in either of his parents.The results of amplified ribosomal DNA restriction analysis were consistent with the findings mentioned above.Conclusion A novel missense mutation S426F was found in the STAT3 gene in the HIES patient with generalized cold abscesses as the prominent clinical manifestation.
2.Treatment of displaced intra-articular calcaneus fractures using the extensile lateral approach and internal fixation
Yunfei LI ; Sheng GAO ; Pingchang XI
Orthopedic Journal of China 2006;0(18):-
[Objective]To evaluate our protocol with the extensile lateral approach to open reduction and internal fixation in the treatment of displaced intra-articular calcaneus fractures.[Method]From 2001 to 2005,35 patients(41 feets)were treated with open reduction and internal fixation using extensile lateral approach,with 25 right feet and 16 left feet and with plate fixation using in 40 cases,single screw fixation using in 1 case.[Result]Evaluated with postoperative plain radiographs,90%(37/41) fracture had anatomic or near anatomic reduction of posterior facet.73%(30/41) Bhler angle above than 20? in 28 cases,32 feets among the patients were followed up at a mean of 14 months(ranged,9 to 24 mouths) and evaluated according to hind foot and ankle score system of AOFAS,average score was 87.The function were satisfactory.It took average 4 month to come back normal action,none of nerves injury,4 patients had wound hematoma.Two cases developed surgical wound edge necrosis and dehiscence among them,who were treated in initial phase in the treat group,the 2 cases were managed with dressing changes and healed in 1 month,whitout skin flaps and grafts.[Conclusion]Open reduction and internal fixation using lateral approach is a better choice to treat intra-articular calcaneal fractures,because it can correct directly the pathology of calcaneal fractures.Anatomical reduction of joint congruity and the shape of the calcaneus are important prognostic factors.
3.Sesquiterpenoids from Solanum lyratum.
Xi-Dian YUE ; Xi-Dian YUE ; Fang YAO ; Lei ZHANG ; Gui-Sheng LI ; Sheng-Jun DAI
China Journal of Chinese Materia Medica 2014;39(3):453-456
Ten compounds were isolated and purified by column chromatography over silica gel, preparative TLC, and Sephadex LH-20 from the whole plant of Solanum lyratum. The structures were elucidated on the basis of physico-chemical properties and spectral data as 1beta-hydroxy-1 ,2-dihydro-alpha-santonin (1) , boscialin (2) , blumenol C (3), 3beta-hydroxy-5alpha, 6alpha-epoxy-7-megastigmen-9-one(4), dehydrovomifoliol(5) , blumenol A(6), (1'S,2R,5S, 10R) -2-(1', 2'-dihydroxy-l1'-methylethyl) -6,10-dimethylspiro[4,5] dec-6-en-8-one(7) , (1'R,2R,5S,10R)-2-( 1',2'-dihydroxy-l '-methylethyl) -6,1 l0-dimethylspiro[4,5]dec-6-en-8-one( 8) , 2-(1',2'-dihydroxy-1 '-methylethyl) -6,1 0-dimethyl-9-hydroxyspiro [4,5] dec-6-en-8-one (9) , and grasshopper ketone (10). Compounds 1-10 were isolated from this plant for the first time.
Drugs, Chinese Herbal
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chemistry
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Solanum
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chemistry
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Terpenes
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analysis
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isolation & purification
4.Simultaneous Determination of Three Marker Components in Fufang Buwu Syrup by TLCS
Li CHEN ; Sheng WANG ; Xi WU ; Mei MENG ; Jingjing ZHU
Chinese Journal of Information on Traditional Chinese Medicine 2014;(2):92-94
Objective To establish an accurate method for determining the content of three components in Fufang Buwu Syrup. Methods TLC scanner was selected to detect three components with silica gel G thin layer plate. The sample was separated by using cyclohexane-ethyl acetate-methylenechloride-formic acid (3∶1∶1∶0.2),λS=300 nm. Results The linearity between peak area and ferulic acid was achieved in the range of 0.36-0.84μg, psoralen was achieved in the range of 0.12-0.28 μg, emodin was achieved in the range of 0.01-0.05 μg. The average recovery was 100.7%, 100.8%, 101.0%, and RSD was 1.26%, 1.44%, 1.86%, respectively. Conclusion The method is simple and accurate, which can be used for quality control of Fufang Buwu Syrup.
5.Calcium phosphate cement II induces osteogenesis and repairs tendon-bone interface injury:a biomechanical analysis
Xiaofei LI ; Wenjin XIE ; Luxin SHENG ; Xi YUAN
Chinese Journal of Tissue Engineering Research 2015;(43):6889-6894
BACKGROUND:Both calcium phosphate cement II and recombinant human bone morphogenetic protein have certain osteoinductive effects, which have the possibility of repairing tendon-bone interface injury. OBJECTIVE: To investigate the osteoinductive effect of calcium phosphate cement II and its biomechanics analysis of repairing tendon-bone interface injury. METHODS:Five out of 35 adult healthy New Zealand white rabbits were randomly selected and their bilateral shoulder joint tendon-bone interface specimens were taken as normal control group after being sacrificed. The remaining 30 rabbits were used to make animal models of tendon-bone interface injury and then randomly divided into experimental and model groups. Rabbits in the model group had no treatment, and those in the experimental group were treated with calcium phosphate cement II. RESULTS AND CONCLUSION: After repair with calcium phosphate cement II, the injured tendon-bone interface of rabbits was obviously restored, and the repair effect became better with time. The expression level of bone morphogenetic protein 2 was also increased accordingly. The maximum tensile strength and the maximum stiffness of the injured tendon-bone interface were obviously increased. These results demonstrate that calcium phosphate cement II combined with recombinant human bone morphogenetic protein has good osteoinductive and repair effect in repair of tendon-bone interface injury.
6.Comparison of hepatitis C virus RNA and antibody detection method in population screening and its application
Hongyan ZHU ; Sheng BI ; Xi YANG ; Zheng LI ; Yunmin XU
International Journal of Laboratory Medicine 2014;(20):2811-2812,2815
Objective To investigate the application of hepatitis C virus RNA and antibody detection method in population screening.Methods The colloidal gold rapid test method and the enzyme-linked immunosorbent assay (ELISA)were adopted to detect hepatitis C virus (HCV)antibodies,and the real-time quantitative PCR (RT-PCR)was adopted to detect HCV-RNA viral load.Results (1)Among 539 samples,266 cases were antibody negative and 263 cases were antibody positive.(2)Among 67 cases in the HCV-RNA viral load <103 IU/mL group,60 cases were HCV antibody positive by ELISA and 30 cases were HCV antibody positive by colloidal gold rapid test.Among 208 cases in the HCV-RNA viral load ≥ 103 IU/mL,199 cases were antibody positive by ELISA,but only 181cases were antibody positive by the colloidal gold rapid method.Other 6 cases of were 2 kinds of antibody negative had the HCV-RNA viral load ≥ 103 IU/mL.(3)208 cases of HCV-RNA viral load ≥ 103 IU/mL sample were divided in-to four groups.GGT,ALT and AST were statistically significantly different P <0.05),while ALB and S/CO values hadno statisti-cal difference (P >0.05).Conclusion In order to reduce the missed diagnosis rate and diagnose hepatitis C as early as possible,the above laboratory detection methods should be jointly applied and the comprehensive analysis should be conducted in population screening.
7.Inter-rater Reliability of Wisconsin Gait Scale and Gait Abnormality Rating Scale in Hemiplegic Patients after Stroke
Nan HU ; Xi LU ; Jun Li ; Siyu DENG ; Sheng BI
Chinese Journal of Rehabilitation Theory and Practice 2015;21(5):549-551
Objective To study the inter-rater reliability of Wisconsin Gait Scale (WGS) and Gait Abnormality Rating Scale (GARS) in patients with stroke. Methods 20 hemiplegic patients were required to walk on their comfortable speed and videotaped from frontal, backward and lateral. The video recordings were scored with WGS and GARS by 2 experienced physical therapists. Intraclass correlation coefficient (ICC) was calculated for the scores in each category and the total score. Results ICC for the WGS were 0.372~1, and were 0~0.875 for the GARS. Conclusion WGS is more appropriater to assess the gait of hemiplegic stroke patients than GARS.
8.Diterpenoids from Scutellaria strigillosa.
Gui-Sheng LI ; Xin-Miao HAO ; Lei ZHANG ; Xi-Dian YUE ; Sheng-Jun DAI
China Journal of Chinese Materia Medica 2015;40(1):98-102
By means of preparative HPTLC and column chromatography over silica gel and Sephadex LH-20, nine diterpenoids were isolated and purified from the whole plants of Scutellaria strigillosa. Based on the physico-chemical properties and spectral data, their structures were elucidated as: 6-O-acetyl-7-O-nicotinoylscutebarbatine G(1), 6-O-nicotinoyl-7-O-acetylscutebarbatine G(2), 6,7-di-O-nicotinoylscutebarbatine G(3), scutebarbatine K(4), scutebarbatine B(5), 6-O-acetylscutehenanine A(6), 6-O-nicotinoylbarba- tin A(7), 6,7-di-O-acetoxylbarbatin A(8), scutebarbatine F(9). Compound 1 is a new diterpenoid, and compounds 2-9 were isolated from Scutellaria strigillosa for the first time.
Diterpenes
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chemistry
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Drugs, Chinese Herbal
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chemistry
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Magnetic Resonance Spectroscopy
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Molecular Structure
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Scutellaria
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chemistry
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Spectrometry, Mass, Electrospray Ionization
9.Correlation study between ~(18)F-FDG uptake and hypoxia inducible factor-1α level,microvessel density in human gliomas
Li, CAI ; Chuan, ZHANG ; Yan-sheng, LI ; Da-cheng, LI ; Xi-ling, XING ; Shuo, GAO
Chinese Journal of Nuclear Medicine 2010;30(1):10-14
Objective To investigate the correlation between ~(18)F-fluorodeoxyglucose (FDG) uptake and hypoxia inducible factor1α (HIF-1α) level,microvessel density (MVD) in human gliomas.Methods ~(18)F-FDG PET scan was performed preoperatively in 41 patients with gliomas (including 23 highgrade and 18 low-grade tumors).The ratios of maximum standardized uptake value(SUV_(max))between tumor (T)and contralateral white matter (WM) were calculated (T/WM).Immunohistochemical stain methods were used to evaluate the level of HIF-1α and measure the MVD in tumors.Correlation analysis between SUV_(max) of T/WM and HIF-1α level,MVD wag performed.The t-test,one-way ANOVA test,Spearman rank correlation and Wilcoxon signed-rank test were calculated using SPSS 11.5 software.Results (1)The SUV_(max) of T/WM,HIF-1α level and MVD in high-grade and low-grade tumors groups were 3.39±1.43,95.7% and 44.13±16.1 vs 1.46±0.55.55.6% and 18.83±7.07,respectively.The difierences of SUV_(max) of T/WM,HIF-1α level and MVD between two groups were statistically significant (t=-5.921,z=-3.938,t=-6.745,all P<0.05).(2)Among 41 gliomas,the strong positive expression of HIF-1α was observed in 8,mederate in 9,weak in 15 and negative expression was found in 9,SUV_(max) of T/WM and MVD increased with increasing HIF-1α level.The differences of SUV_(max) of T/WM and MVD among 4 different groups were statistically significant (F=7.41,P<0.05).(3) The MVD of all gliomas was ranged from 9.76 to 94.52,which correlated with SUV_(max) of T/WM(r=0.759,P<0.05).Conclusions The SUV_(max) of T/WM correlates with HIF-1α level and MVD in gliomas.Therefore,~(18)F-FDG PET provides preoperatively a noninvasive assessment of hypoxia or angiogenesis in human glionma.
10.The correlations between 18F-FDG uptake and a variety of tumor biological indicators in C6 glioma rats with radiotherapy
Wei-long, LI ; Xi-ling, XING ; Li, CAI ; Gui-chao, LIU ; Yan-sheng, LI ; Shuo, GAO
Chinese Journal of Nuclear Medicine 2011;31(6):368-372
ObjectiveTo study the relationship between 18F-FDG uptake and tumor cell density,glucose transporter expression,cellular proliferation and angiogenesis before and after radiotherapy in C6 glioma rats.MethodsThirty C6 glioma-bearing male SD rats were randomly divided into three groups:A,B and C ( 10 rats in each group).Two weeks later,18F-FDG PET/CT was performed in group A.In groups B and C,18 F-FDG PET/CT was performed at 48 h and 1 week after radiotherapy,respectively.The ratio of SUVmax of tumor to muscle (T/M) was calculated.HE staining,immunohistochemical staining and Western blot were used to measure tumor cell density,Ki67 labeling index ( LI),microvessel density ( MVD),Glut-1 and VEGF expression quantitatively.The one-way analysis of variance and bivariate correlation analysis were used to compare the changes of each indicator and evaluate the correlation between T/M and biological indicators,respectively.Results Significant differences of T/M,tumor cell density,Ki67 LI,MVD,Glut-1 and VEGF among groups A,B and C were observed ( F =6.77,60.66,104.56,95.49,9.13,24.48,respectively,all P <0.05).Least significant difference (LSD) test showed that there was no significant difference between group A and B in T/M,tumor cell density and Ki67 LI ( 10.86 ± 3.31,730.50 ± 78.93,20.02 ± 2.14 vs 9.23 ± 4.56,672.70 ± 92.98,18.56 ± 2.26).However,the indicators of group C (5.16 ± 2.52,355.60 ± 72.62,7.81 ± 1.76 ) were significantly decreased compared with those of groups A and B (all P <0.05 ).MVD and Glut-1 expression of group B increased slightly compared with those of group A ( 19.50 ± 1.96,0.20 ± 0.09 vs 17.90 ± 2.02,0.15 ± 0.04),but the difference was not statistically significant.Nevertheless,the two indicators were significantly decreased in group C ( 8.40 +1.84 and 0.07 ±0.06,P <0.05).VEGF expression in group B (0.42 ±0.13) was significantly higher than that in groups A and C (0.17 ±0.04 and 0.16 ± 0.09) ( both P < 0.05 ).The changes of T/M were positively correlated with the changes of tumor cell density between groups A and B ( r =O.81,P < 0.05 ).Changes of T/M were positively correlated with the changes of tumor cell density,Ki67 LI,MVD and Glut-1 between groups A and C (r =O.83,0.71,0.68,0.62,all P < 0.05 ).ConclusionsThe changes of 18 F-FDG uptake in C6 glioma rats were only correlated to the changes of tumor cell density at 48 h after radiotherapy.However,the changes of 18F-FDG uptake closely correlate to the changes of a variety of biological indicators at 1 week post radiotherapy.