1.Chemical constituents of methanol portion of Illicium henryi.
China Journal of Chinese Materia Medica 2014;39(5):857-859
To study the chemical constituents of the methanol portion of the stem of Illicium henryi. The methanol portion was isolated and purified by HP-20, ODS, Sephadex LH-20 column chromatography, and preparative HPLC. Their structures were elucidated by MS and spectral data(1H, 13C-NMR). Five compounds were isolated from the methanol portion and identified as benzyloxy-1-O-beta-D-glucopyranoside (1), 4-hydroxy-phenethyl alcohol-O-beta-D-glucopyranoside (2), 3-methoxyl-4-hydroxyl-phenpropanol-O-beta-D-glucopyranoside (3), 3-methoxyl-4-O-beta-D-glucopyranosyloxy-benzoic acid methyl ester (4), and 4-O-beta-D-glucopyranosyloxy-benzoic acid methyl ester (5). All compounds were isolated from this plant for the first time.
Drugs, Chinese Herbal
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chemistry
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isolation & purification
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Illicium
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chemistry
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Molecular Structure
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Spectrometry, Mass, Electrospray Ionization
2.Chemical constituents from roots of Chirita longgangensis var. hongyao.
China Journal of Chinese Materia Medica 2014;39(6):1040-1042
To study the chemical constituents from the roots of Chirita longgangensis var. hongyao. The methanol extract was isolated and purified by silica gel, Sephadex LH-20 and preparative HPLC. Their structures were elucidated by MS and spectral data (1H, 13C-NMR). Seven compounds were isolated and identified as plantainoside A (1), plantainoside B (2), calcedarioside C (3), calcedarioside D (4), platyphylloside (5), hirsutanonol (6), and hirsutanonol-5-O-beta-D-glucopyranoside (7). Compounds 5-7 were isolated for the first time from the family Gesneriaceae.
Drugs, Chinese Herbal
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chemistry
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Organic Chemicals
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analysis
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Plant Roots
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chemistry
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Tracheophyta
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chemistry
3.Comparative analysis of binocular summation of pattern visual evoked potential before and after the surgery of concomitant strabismus
Miao-Yun, LIAO ; Zhong-Hua, WEN ; Hai, HUANG
International Eye Science 2014;(7):1284-1287
AlM:To investigate the opportunity of the concomitant strabismus operation and the function in the treatment of strabismic amblyopia through analyzing the changes of binocular summation of pattern visual evoked potential ( P-VEP ) before and after the surgery of concomitant strabismus.
METHODS: ln this retrospective study we investigated 67 cases admitted in our hospital. All patients were less than 18a and the postoperation squint angle was less than ± 10△. Patients were divided into three groups according to the strabismus type, age, and amblyopia degree. P-VEP binocular summation response was recorded in all cases, to observe the changes of the binocular summation response of P-VEP before strabismus surgery and 1mo, 3mo after surgery. The P-VEP response of binocular /monocular ( B/M ) ratio was taken as an evaluation index.
RESULTS: B/M value of three groups all improved obviously 1mo after surgery, which the difference showed statistical significant (P<0. 01). 1) After 3mo surgery, B/M value in esotropia group was higher than that in exotropia group (P<0. 05). 2) After 3mo surgery, B/M value in≤6a group was higher than that in >12a group (P<0. 05). 3) After 1mo surgery, B/M value in severe amblyopia group was higher than that in mild group (P<0. 05). After 3mo surgery, B/M value in severe amblyopia group was higher than that in mild group significantly (P<0. 01).
CONCLUSlON: Concomitant strabismus surgery is suggested to be performed before 6 years old when the patients are difficult to improve the vision after amblyopia treatment, especially with the severe amblyopia and esotropia (accommodative esotropia must be excluded). The early operation is better to amblyopia treatment and binocular vision recovery.
4.Study on the Low Positive Results of Detecting HBsAg in Serum Specimens with Roche Cobas e602 and Modular e170 Electrochemical Luminescence Analyzer
Ya LI ; Di ZHANG ; Yun ZHANG ; Hai HUANG ; Mingquan SU
Journal of Modern Laboratory Medicine 2017;32(3):123-125
Objective To investigate the correlation between the results of HBsAg positive results among different detection systems,and provide reference for the analysis of clinical test results and the publication of the report.Methods The HBsAg positive serum specimens with the quantitation result lower than 80 COI were detected by Roche Cobas e602 electrochemical luminescence analyzer.All the specimens were also detected by Roche Modular e170 electrochemical luminescence analyzer.The differences of detecting results were compared and performed the linear correlation analysis.Results The experimental results of two detection systems are R2 =0.933.The positive coincidences of Group A,B,C,D and E were 60.60%,92.72%,96.66%,96.66% and 100%,respectively.The positive coincidence of the males was 87.66%,while the positive coincidence of the females was 70.96 %.The positive coincidence of the males was significantly higher than the females (P<0.05).Conclusion The HBsAg detecting results of Roche Cobas e602 and Roche Modular e170 electrochemical luminescence analyzer had high correlation.The results higher than 10 COI had 100% positive coincidence rate,however the results between 1 and 10 COI were not.The result between 1 and 10 COI may lead to controversial results,suggestions for further checks.
5.Immobilized Lipases Cooperates to Catalyze Transesterification Reaction of Lard
Ying HUANG ; Huan GAO ; Hai ZHEN ; Yun-Jun YAN ;
China Biotechnology 2006;0(01):-
The transesterification reaction conditions of lard with methyl acetate with combined use of immobilized lipases as catalysts were conducted. Initially, according to single factorial experiments, the studies on Lipozyme TL IM and Novozym 435 respectively catalyzed transesterification of lard showed that the optimal parameters of transesterification reaction were: the molar ratio of methyl acetate to oil of 14∶1, 40% enzyme added based on oil weight, temperature 50℃. Combined use of Lipozyme TL IM and Novozym 435 was proposed further to improve the catalytic performance by the response surface method (RSM). Herein, a 5-level-3-factor central composite rotated design was employed to evaluate the effects of lipase loading, the proportion of the two lipases and amount of methyl acetate. The optimum conditions were as followings: 40% lipase loading based on oil weight, 50%/50% the proportion of lipases (Novozym 435/Lipozyme TL IM), and the molar ratio of methyl acetate to oil of 14∶1. And under the optimal conditions, the highest biodiesel yield of 97.6% could be attained, which was higher than the biodiesel yield with each single one of the two lipases. The results suggested that the technics of combined use of certain immobilized lipases catalyzed transesterification reaction of lard for biodiesel production with methyl acetate as the acyl acceptor could raise the FAME yield and save the production cost.
6.Correlation Analysis of HCV-RNA,HCV-Ab and HCV-cAg
Ya LI ; Yun ZHANG ; Hai HUANG ; Di ZHANG ; Mingquan SU ; Xuchang GUO
Journal of Modern Laboratory Medicine 2016;31(5):120-122
Objective To investigate the correlation of HCV-RNA with detection indexes HCV-Ab and HCV-cAg in its clini-cal application effect among patients with hepatitis C.Methods HCV-cAg and HCV-Ab in 140 cases of HCV-RNA were detected by enzyme linked immunosorbent assay in cases of PCR,which were detected by real-time fluorescence quantitative PCR.Results 127 cases in 140 cases of HCV-RNA positive serum were HCV-cAg positive,in line with the rate of 90.71%,and the cases of 110 HCV-Ab positive,in line with the rate of 78.57%.The positive detection rate of HCV-cAg with different HCV-RNA concentration was increased with the increase of HCV virus content,and the serum of different HCV-RNA concentration had no significant changes in HCV-Ab detection results.Conclusion The detection results of HCV-cAg had a high coincidence rate with HCV-RNA.Therefore detection of HCV-cAg can be as a complementary detec-tion of HCV-Ab,as the window period of HCV infection and infection in immunocompromised persons screening provides a simple,inexpensive method.At the same time it provides rapid screening for HCV infection provide diagnostic basis for those basic medical units who do not have the conditions for detection of HCV-RNA.
7.Heme oxygenase-1 induced autophagy in the alleviation of liver ischemia reperfusion injury
Yun WANG ; Jian SHEN ; Yonghua XU ; Hai ZHANG ; Changjun HUANG ; Yuan TIAN ; Xiangcheng LI
Chinese Journal of Digestive Surgery 2013;(7):538-543
Objective To investigate the correlation of heme oxygenase-1 (HO-1) expression and autophagy in mice with liver ischemia reperfusion (IR) injury,and to study the influence of HO-1 on the hepatic function.Methods Control group,IR group,Hemin + IR group and Znpp + IR group were constructed.Mice in the Hemin + IR group and the Znpp + IR group were pretreated by Hemin (HO-1 inducer) and Znpp (HO-1 inhibitor) before IR.According to different reperfusion time,the IR group was divided into the 0,2,6,12,24,48 and 72 hours groups,and the Hemin + IR group and the Znpp + IR group were divided into the 0,2,6,12,24 hours groups.The levels of alanine aminotransferase (ALT) and aspartate aminotransferase (AST) were detected to evaluate the hepatic function.The autophagosome and pathological changes of liver were observed under electron microscope and hematoxylin and eosin (HE) staining,respectively.The expressions of HO-1 and autophagyassociated protein (LC3Ⅱ) in the protein level were detected by Western blot.All data were analyzed using the analysis of variance,t test and q test,respectively.Results The levels of ALT and AST of the IR group,Hemin + IR group and Znpp + IR group were significantly higher than those of the control group (F =96.17,85.53,P <0.05).The levels of ALT and AST of the IR 12 hours group and 24 hours group were significantly higher than those of the Hemin + IR 12 hours group and 24 hours group (qALT=--14.46,-7.85 ; qAST=-12.98,-5.26,P <0.05),but significantly lower than those of the Znpp + IR 12 hours group and 24 hours group (qALT=4.25,4.94;qAST=4.98,3.53,P < 0.05).The results of HE staining showed that hepatic IR injury was significalty alleviated in the Hemin + IR group when compared with the IR group and the Znpp + IR group.The Suzuki degrees of hepatic IR injury in the control group,IR 12 hours group,Hemin + IR 12 hours group and the Znpp + IR 12 hours group were 0.5 ± 0.3,2.6 ± 0.5,1.1 ± 0.3,3.0 ± 0.4,respectively,with significant differences among the 4 groups (F =53.62,P <0.05).There were significant difference in the Suzuki degrees of hepatic IR injury between the IR 12 hours group and the Hemin + IR 12 hours group,and between the IR 12 hours group and the Znpp + IR 12 hours group (q =10.67,14.02,P < 0.05).The results of electron microscopy showed that the number of autophagosome in the IR group was greater than the control group and Znpp + IR group,but lesser than the Hemin + IR group.The numbers of autophagosome in every 10 high power fields of the control group,IR 12 hours group,Hemin + IR 12 hours group and the Znpp + IR 12 hours group were 0.4 ±0.2,1.8 ±0.6,4.0 ± 1.8,0.7 ±0.5,respectively,with significant difference among the 4 groups (F =21.35,P < 0.05).There were significant differences in the number of autophagosome between the IR 12 hours group and the Hemin + IR 12 hours group,and between the IR 12 hours group and the Znpp + IR 12 hours group (q =6.05,-3.03,P < 0.05).The expressions of HO-1 and LC3Ⅱ in the IR group and the Hemin + IR group were significantly increased.The relative expressions of HO-1 protein in the Hemin + IR 6 hours group and the 12 hours group were 0.64 ±0.17 and 0.51 ±0.12,which were significantly higher than 0.45 ± 0.08 and 0.17 ± 0.03 of the IR 6 hours group and 12 hours group (t =4.03,4.69,P < 0.05).The relative expressions of LC3Ⅱ protein in the Hemin + IR 6 hours group and the 12 hours group were 1.04 ± 0.20 and 1.20 ± 0.23,which were significantly higher than 0.58 ± 0.04 and 0.95 ±0.14 of the IR 6 hours group and 12 hours group (t =4.29,6.69,P<0.05).The relative expressions of HO-1 protein in the Znpp + IR 6 hours group and 12 hours group were 0.23 ± 0.03,0.14 ± 0.02,respectively,and the relative expressions of LC3Ⅱ protein were 0.35 ± 0.04 and 0.49 ± 0.14,which were significantly lower than the HO-1 and LC3Ⅱ protein expressions in the IR 6 hours group and 12 hours group (tHO-1 =13.82,7.04; tLC3Ⅱ =7.21,4.03,P <0.05).Conclusion HO-1 is positively related to the amelioration of hepatic function,and it may be achieved by induction of autophagy.
9.Gait analysis through plantar pressure measurement in children with spastic cerebral palsy
Hai LI ; Jian-Xin DING ; An-Yan ZHOU ; Dong-Feng HUANG ; Qin JIANG ; Yun-Dong YIN ;
Chinese Journal of Physical Medicine and Rehabilitation 2003;0(12):-
Objective To study the gait of children with spastic cerebral palsy (SCP) using plantar pressure measurement (PPM).Methods Twenty SCP children and 84 healthy children were recruited,and PPM was used to compare their gait cycle time,cadence,and standardized gait cycle parameters.Results Compared with the control group,gait cycle times in the SCP group were obviously prolonged,and their cadence was significantly slower.The side support phase and swing time in the SCP group were shorter,while the double support phase was longer than that of children in the control group.Conclusion PPM can be used to assess the gait of SCP children efficiently.
10.Expression of Smad 7,Smurf 1 and Smurf 2 in basal cen carcinoma and squamous cell carcinoma
Ying LI ; Wei HE ; Yun-Zhi HE ; Hai HUANG ; Zi-Hua LIN ; Jun WU
Chinese Journal of Dermatology 2003;0(12):-
Objective To investigate the expression and significance of Smad 7,Smurf 1 and Smurf 2 in basal cell carcinoma and squamous cell carcinoma.Methods Biopsy specimens were resected from 14 patients with basal cell carcinoma,19 patients with squamous cell carcinoma and 30 normal controls.Quanti- tative real-time PCR and immunohistochemical techniques were utilized to assess the expression of Smad 7, Smurf 1 and Smurf 2 in these specimens.Results The gray scale for staining of Smad 7,Smurf 1 and Smurf 2 was 166.61?7.11,166.08?8.71,and 166.25?8.15 respectively in basal cell carcinoma,161.66?5.52,166.84?9.27,and 169.98?9.48 respectively in squamous cell carcinoma.The expression levels of Smad 7,Smurf 1 and Smurf 2 were all significantly increased in basal cell carcinoma and squamous cell car- cinoma in comparison with normal controls.Conclusions The over-expression of Smad 7,Smurf 1 and Smurf 2 may interfere with transforming growth factor?signaling transduction pathway through several links,therefore prevent the inhibitory effect of transforming growth factor?on epidermal proliferation,and accelerate the abnormal proliferation in above epidermal tumors.