1.Simultaneous determination of ligustilide and 6-gingerol in Kuanxuean Soft Capsule by HPLC internal standard method
Hongmei WEN ; Guoping PEN ; Guoyuan ZHU ; Quan ZHU
Chinese Traditional Patent Medicine 1992;0(03):-
AIM: To establish a convenient liquid chromatography-internal standard method for determining ligustilide and 6-gingerol in Kuanxuean Soft Capsule (Radix Angelicae Sinensis, Rhizoma Zingiberis Preparatum, etc.) METHODS: Ligustilide, 6-gingerol and the internal standard naphthalene were separated on a Kromasil C_ 18 column. The mobile phase consisted of methanol-trifluroacetic acid (67 ∶ 33, V/V) and was determined at 218 nm. The content of ligustilide and 6-gingerol was calculated by the internal standard method. RESULTS: The recovery of ligustilide was 98.64% (RSD=1.58%); the recovery of 6-gingerol was 97.25% (RSD=1.40%). Result of the standard curve method accords with that of internal standard method. CONCLUSION: The method is sensitive, stable, practical, and suitable for the quality control of Kuanxuean Soft Capsule.
2.Study on extraction technology of Zhixuan Granula
Hongmei WEN ; Wei LI ; Guoping PENG ; Quan ZHU ; Zhengxin ZHANG
Chinese Traditional and Herbal Drugs 1994;0(06):-
Object To optimize the preparation procedure for Zhixuan Granula (ZXG). Methods The optimum extracting conditions of ZXG were selected by orthogonal test with the active components: 23-acetate alisol B, atractylenolide I, and dried extract as the index, it mice sedation of ZXG was clarified by pharmacodynamics. Results The optimum preparation procedure was as follows: Rhizoma Alismatis and Rhizoma Atractylodis Macrocephalae were extracted with alcohol first, adding 12-fold 70% alcohol by refluxing, extracting twice, 2 h once, then extracted with water, adding 14-fold water, extracting twice, 2 h once. The extract showed the obvious effect on sedation of mice. Conclusion The optimum preparation procedure is reliable, with higher extracting ratio of the active components.
3.A Convenient Method to Select DNA Fragments of Cephalosporium acremonium with Promoter Function
Pi-Yan ZHANG ; Chun-Bao ZHU ; Bao-Quan ZHU ; Wen-Jie ZHAO ;
Microbiology 1992;0(03):-
A promoter-trap vector pGBT14 for selecting promoters of fungus gene was constructed with E. coli-yeast shuttling plasmid pGBT9. Using this vector, a0. 5-2. 0kb chromosomal DNA library of Cepholosporium acremonium was constructed, and twenty four DNA fragments with promoter function in Saccharomyces oerevisiae Y153 were selected from this DNA library. And the promoter function of these DNA fragments was analyzed.
6.Oddi sphincter lesions:a clinical and histological study
Jianguo ZHAO ; Zhuoyong QUAN ; Kaiqin PENG ; Ling ZHU ; Wen LIU ; Yongsheng SHAO ; Yingtian ZHANG
Chinese Journal of General Surgery 1994;0(05):-
Objective To explore the relationship between the histological alterations of Oddi sphincter lesions and clinical manifestations. MethodsFrom October 1995 to May 2003, biopsies of Oddi sphincter were undertaken during transduodenal sphincteroplasty (TSP) in 32 cases. Specimens were stained with Van Gieson Mason staining. ResultsThirty one out of 32 specimens were found with histological alterations in Oddi sphincter including diffuse fibrosis in 87 1% (27/31) , adenomyosis in 2 cases and chronic inflammatory infiltration in 2 cases. Impacted stone in the terminal common bile duct, benign papillary stenosis and visible postpancreatitis parenchymal changes were all found accompanying severe fibrosis of Oddi sphincter. ConclusionIn patients with impacted stones in the ampulla, intracholedochal sludge with recurrent cholangitis, and relapsing pancreatitis, endoscopic sphincterotomy is recommended.
7.Effects of New Tangshenkang on α-SMA and E-cadherin of Human Renal Tubular Epithelial Cell HK-2 in High Concentrations of Glucose
Miaorui ZHU ; Zhuo QUAN ; Lixia YANG ; Tao CHENG ; Dinghua ZHANG ; Hanyuan GAO ; Wen SUN
Chinese Journal of Information on Traditional Chinese Medicine 2016;23(3):54-57
Objective To observe he effects of new Tangshenkang on α-SMA and E-cadherin of human renal tubular epithelial cell HK-2 in high concentrations of glucose; To explore the mechanism of new Tangshenkang on the prevention and treatment of diabetic renal fibrosis. Methods The HK-2 cells were cultured and divided into control group, high glucose group, animal serum control group, new Tangshenkang low-, medium-, and high-dosage group. After medicine intervention, cell proliferation was tested by MTT assay, and contents of α-SMA and E-cadherin were observed by ELISA assay. Results Compared with control group, α-SMA of HK-2 cultured with high glucose was much notable, but the content of E-cadherin significantly decreased, with statistical significance (P<0.05). The content of α-SMA of HK-2 cultured with new Tangshenkang decreased, and the content of E-cadherin increased; cell proliferation was markedly inhibited in culture medium supernatant of HK-2 cells cultured with high glucose plus new Tangshenkang compared with only high glucose, with statistical significance. Conclusion New Tangshenkang can inhibit cell proliferation and epithelial-myofibroblast transdifferentiation of HK-2 cell induced by high glucose, and prevent the development of diabetic renal fibrosis to a certain extent.
8.Analysis based on the passrate of the 2013 lCO examinations taken by worldwide examiners
Wen, LIU ; Quan-Hui, ZHANG ; Zhao-Liang, ZHU ; Sai-Yi, ZHANG ; Pei-Ye, LI
International Eye Science 2014;(12):2244-2246
AlM: To find out the weaknesses of the cultivation of the Chinese ophthalmology physicians and the gap between Chinese and the international ophthalmology physicians, so that provide the advice on the future cultivation of the Chinese ophthalmology physicians.
METHODS: The passrate of the 2013 lCO examinations taken by worldwide examiners by common statistical methods was analyzed.
RESULTS:The results indicated that the test scores of Chinese candidates' were lower than that of the international average level, there was a obvious gap existed between Chinese and other countries' ophthalmology physicians. lt showed that Chinese candidates were not quite adaptable to this examination, basic science and clinical level needed to be improved.
CONCLUSlON:lt may shows that the effects on the mid-anaphase of our country's ophthalmology residency training are not so good, which area we should pay more attentions.
9.Separating the intersegmental plane by different energy devices in segmentectomy: results from ex vivo animal
Honglei XU ; Wang ZHANG ; Liang CHEN ; Wei WEN ; Jun WANG ; Xinfeng XU ; Quan ZHU
Chinese Journal of Thoracic and Cardiovascular Surgery 2021;37(1):33-37
Objective:Comparing the different effects between using electrotome and ultrasonic scalpel in segmentectomy for separating intersegmental plane.Methods:The ex vivo porcine lungs were chosen for experiments, the a segment of the cranial lobe of the right lung(RS1a) was removed by using electrotome(coagulation mode) or ultrasonic scalpel, the values of minimum air leak pressure among them were compared, and also the hematoxylin and eosin staining for evaluating the injury degree of incision edge.Results:The mean values of minimum air leak pressures for the intersegmental plane after segmentectomy were(17.3±1.0)cmH 2O by electrotome, (16.4±2.9) cmH 2O by ultrasonic scalpel, the differences did not reach significance between electrotome and ultrasonic scalpel( P=0.17). When focused on heat injury degree of incision edge, electrotome caused a heavier damage than ultrasonic scalpel[(819.70±158.00)μm vs.(354.35±98.81)μm, respectively, P<0.01]. Conclusion:Electrotome and ultrasonic scalpel presented different merits and defects, and we should opt energy devices rationally for separating inter-segmental plane.
10.Clinical value of liver biopsy for infantile hepatitis syndrome
Mei LONG ; Li ZHU ; Wen-Li LIU ; Quan ZHAN ; Qin-Hui PANG ; Yan RAO ; Xiao-Li QUAN
Chinese Journal of Applied Clinical Pediatrics 2013;28(19):1491-1493
Objective To investigate the value of ultrasound-guided liver biopsy for infantile hepatitis syndrome regarding diagnosis,treatment and prognosis.Methods Fifty children with infantile hepatitis syndrome hospitalized in Guiyang Maternal and Child Hospital during Aug.2010 to May 2012 were involved in this study.Ultrasoundguided liver biopsies were performed to evaluate the inflammation grade and fibrosis stage.Immunohistochemical staining was used for pathogen diagnosis.The clinical outcomes were followed-up.Results Thirty-four cases (68%)were CMV infection,6 cases(12%) were vanishing bile duct syndrome,4 cases(8%) were chronic intrauterine infection,4 cases(8%) were congenital anomaly of bilirubin metabolism,and 2 cases (4%) were obstructive cholangitis.All 50 cases showed mild inflammation at portal area(G1-G2 grade).All 50 cases exhibited liver fibrosis.Sixteen cases were S1 stage,20 cases were S2 stage,8 cases were S3 stage and 6 cases were S4 stage.Pathogen analysis:all 50 cases showed intrahepatic cholestasis:38 cases were diffuse cholestasis,and 12 cases were moderate cholestasis.Treatment:all cases were treated using 2-week heteropathy; antivirus was used for CMV infected cases,thus 39 cases were finally cured,9 cases were relieved,and 2 cases were ineffective.Conclusion Liver biopsy is valuable for diagnosis,treatment and prognosis infantile hepatitis syndrome.