1.Study on Insulin Resistance of Preventing and Treating Experimental Diabetic Rats by Powder of Detoxicating and Activating the Collaterals and Regulating Livers
Yachun ZHU ; Chunli PIAO ; Miao YU
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(02):-
Objective To research the effects of powder of detoxicating and activating the collaterals and regulating livers on diabetic rats models caused by high fat feed and streptozotocin, to provide scientific basis for clinical dosage. Methods Wistar rats were feeded by high fat feed for one month and forbidden to eat for twelve hours, then injected through abdomen with 30 mg/kg of 1.2% streptozotocin. Blank group was injected with the same amount of lemon buffer solution. One week later, sugar tolenrance test was conducted. Rats affected by diabetics were divided into model group, dimethyldiguanide group, Pyrrole group and group of detoxicating and activating the collaterals and regulating livers. Treatment group was perfused into stomach with different medicine by the dosage of 0.5, 5, 0.5 g/(kg?d) respectively. Blank group and model group were perfused with the same amount of physiological saline. Two months after the dosage, indexes such as saccharogenic hemoglobian and blood lipid were detected, and the sensitive indexes of insulin was calculated. Results In the twelfth week, every index in treatment group by powder of detoxicating and activating the collaterals and regulating livers was much lower than model group (P
2.Study on Quality Standards for Compound Shatagan Oral Liquid
Shuangying YU ; Xiuhua LIU ; Feng ZHANG ; Shujuan PIAO ; Wenquan LU
Chinese Journal of Information on Traditional Chinese Medicine 2015;22(11):86-88
Objective To establish the quality standards for compound Shatagan Oral Liquid. Methods Chuanxiong Rhizoma was identified by TLC. The content of ferulic acid was determined by HPLC. Separation was performed on a Diamonsil C18 column (4.6 mm × 250 mm, 5μm) with a mobile phase consisting of methanol-1% acetic acid solution in gradient elution (0-5 min, 35% methanol;5-8 min, 35%→23% methanol;8-22 min, 23% methanol) at 30℃;The flow rate was 1.0 mL/min;The injection volume was 5μL;The detection wavelength was 322 nm.Results Ferulic acid showed a good linear relationship in the range of 0.039 4-0.630 0μg (r=0.999 7,n=7). The average recovery was 98.22% and RSD was 2.62% (n=6).Conclusion The method is reliable, sensitive and with repeatability, which can be used as the quality control method for compound Shatagan Oral Liquid.
3.Application of suckling mice in pediatric pharmacological and toxicological studies
Chengyu PIAO ; Min YU ; Yongwu LIU ; Shumin LIU
Chinese Journal of Comparative Medicine 2015;(6):71-74
Research on laboratory animals is an important issue in biomedicine.Children are a special drug-using population.The selection of suitable experimental animals is a key issue to ensure the scientific quality of research for pediatric drugs.Based on the review of a large number of literature, the authors summarized the application of suckling mice in the pharmacological research and toxicological evaluation of pediatric drugs for the treatment of common diseases in children.We also summarized the existing problems in pediatric toxicology and proposed solutions for providing a reference of test animal application in pediatric drug research.
4.Treatment of chronic renal failure by Niaodukang-enema liquid:a clinical observation of 56 cases
Bing HAN ; Min YU ; Zhixian PIAO ; Yaoxun SHI ; Mi TIAN
China Journal of Traditional Chinese Medicine and Pharmacy 2005;0(05):-
Objective:To investigate the clinical effect of Niaodukang-enema liquid on chronic renal failure. Methods: 112 cases were divided into treatment group and control group randomly. The patients of treatment group were given oral Medicinal Charcoal Tablets and Niaodukang-enema liquid(120ml) for enema at high position,56 cases. The patients of contral group were given oral Medicinal Charcoal Tablets only, 56cases. The renal function was observed before and after treatment in both groups.Results :The distinct effective rates and total effective rates in treatment group were obviously better than that in contral group (P
5.Novel compounds in Momordica charantia
Yu ZHANG ; Jiongmo CUI ; Huri PIAO ; Yuqing ZHAO
Chinese Traditional and Herbal Drugs 1994;0(04):-
Objective To study new active constituents in the mature fruits of Momordica charantia.Methods M.charantia was extracted by alcohol and purified by D-101 macroporous adsorptive resin.The isolation and purification were carried out by silica gel and semiprepared HPLC,the compounds were identified and elucidated by spectral and chemical methods.Results Eight compounds were obtained and identified as charantadiol A(5?,19-epoxycucurbita-6,23(E),25(26)-triene-3?,19(R)-diol,Ⅰ),(+)-eduesmin(Ⅱ),bluemenol A(Ⅲ),karatavilagenin D(Ⅳ),5?,19-epoxycucurbita-6,23-diene-3?-19,25-triol(Ⅴ),5,19-epoxy-5?-cucurbita-6,23(E)-diene3?,25-diol(Ⅵ),3?,7?-trihydroxy-cucurbita-5,23(E)-diene-19-al(Ⅶ) and ?-sitosterol(Ⅷ).Conclusion Compound Ⅰ is a novel one,named charantadiol A.Compounds Ⅱ and Ⅲ are obtained from M.charantia for the first time.
6.Screening of tumor metastasis related differentially expressed genes in hepatocellular carcinoma cells with FATE/BJ-HCC-2 gene stable transfection by gene chip
Lili GE ; Xiaoang YANG ; Junyan PIAO ; Yanhui YIN ; Yu ZHANG
Chongqing Medicine 2016;45(12):1595-1597
Objective To screen the tumor metastasis related differentially expressed genes in hepatocelluar carcinoma (HCC)cells 7402 after stable transfection with FATE/BJ‐HCC‐2 gene .Methods Total RNA was extracted from FATE/BJ–HCC‐2‐transfected HCC(5B4)cells and empty vector control (Mock)cells respectively .Differentially expressed genes were obtained using cDNA microarray .Results Compared with Mock cells ,a total of 1 694 differentially expressed genes were screened out in 5B4 cells ,the 11 gene expressions had obvious differences ,among which the expression amounts in 7 genes were significantly in‐creased ,including MMP‐1 ,PTGS2 ,FN ,CA9 ,IL‐8 ,ILK and Areg .The fold changes were 81 .80 ,49 .86 ,11 .30 ,16 .26 ,3 .48 ,2 .79 and 2 .20 ,respectively .The expression amounts in 4 genes were significantly decreased ,including E‐cadherin ,E‐cadherin , RHOBTB3 ,ALPP and HLA‐DRB4 .The fold changes were -5 .42 ,-2 .23 ,-5 .93 and -8 .03 ,respectively .Conclusion Adopting gene microarray technology can carefully screen the differentially expressed genes of FATE/BJ‐HCC‐2 involved HCC metastasis ,its final goal is to lay a solid theoretical foundation for studying the HCC metastasis mechanism .
7.A preliminary attempt on curriculum reform of medical function experimental science
Hailing YU ; Xiuguo LI ; Rilong PIAO ; Yingjun LI
Chinese Journal of Medical Education Research 2011;10(2):223-226
Medical function experimental science in the medical education reform has been a hot spot in recent years. The set-up and adjustment of the curriculum is a very important step in teaching reform and one of the major issues in the research and study of medical education. In the article, it explores the initial ideas for curriculum reform, such as optimization of the course content, reform of teaching methods and means, improving student achievement evaluation system, and other aspects, to promote the development and improvement on curriculum construction in functional experimental science of medical colleges.
8.Clinical analysis of hysteroscopic surgery for cesarean scar pregnancy in 64 cases
Qing YANG ; Shuhua PIAO ; Guangwei WANG ; Yu WANG
Chinese Journal of Obstetrics and Gynecology 2010;45(2):89-92
Objective To explore the rationale therapy method of hysteroscopic surgery for cesarean scar pregnancy. Methods A retrospective review of medical records of 64 patients with cesarean scar pregnancy admitted in Shengjing Hospital of China Medical University from January 2006 to April 2009 was performed, 27 cases out of them were referred from other institutions, and received various interventions before admission, while 37 cases were admitted to our hospital without prior treatments. Results The diagnosis was confirmed by serum human chorionic gunadotropin-beta subunit (β-hCG) and ultrasound.Sixty-three patients were removed of conceptive tissues underwent hysteroscopy assisted by ultrasonic guidance, while 1 patient underwent hysteroscopic removal of conceptive tissues assisted by laparoscopic surveillance. Seven cases of sixty-four were experienced second salvage operation. Pathological examinations were performed for all cases and 1 case was diagnosed to be choriocarcinoma. Conclusion Hysteroscopic removal of conceptive tissues implanted in the cesarean section scar seems to be a feasible and safe procedure that might be considered as a treatment option and it should be monitor the levels of β-hCG and the residual lesions after surgery.
9.Survival of engineered myocardium constructed by bone marrow mesenchymal stem cells in vitro
Mao TIAN ; Hainan PIAO ; Yu CHEN ; Qi ZHAO ; Xin PAN
Chinese Journal of Tissue Engineering Research 2014;(20):3133-3138
BACKGROUND:So far, engineered myocardium is stil facing many problems. Research has demonstrated that bone marrow mesenchymal stem cells can be differentiated into myocardial cells. Polyglycolide and polycaprolactone are commonly used artificial polymers, which have good biocompatibility.
OBJECTIVE:To observe the growth of the poly(glycolic acid)/poly(e-caprolactone) copolymer patch in vitro in normal myocardium and infarcted myocardium.
METHODS:Bone marrow mesenchymal stem cells in Sprague-Dawley rats were separated using adherent separation and selection method, cultured in vitro. The third passage was labeled with DAPI. The bone marrow mesenchymal stem cellsuspensions (2×106/cm2) were produced and planted on poly(glycolic acid)/poly(e-caprolactone) copolymer scaffolds to form poly(glycolic acid)/poly(e-caprolactone) copolymer patch. After culturing for 48 hours, the specimens were observed under electron microscope, stained with hematoxylin and eosin, and then observed under light microscope. Rat models of myocardial infarction were established by ligating left anterior descending coronary artery. Poly(glycolic acid)/poly(e-caprolactone) copolymer patch was implanted into the normal and infarcted myocardium for 5 weeks. The survival of bone marrow mesenchymal stem cells was determined by the detection of pathology.
RESULTS AND CONCLUSION:Results of light microscope and electron microscope demonstrated that bone marrow mesenchymal stem cells grew three-dimensional y on poly(glycolic acid)/poly(e-caprolactone) copolymer patch. cells and patch were adhesive wel . Under laser confocal microscopy, compared with the first week, bone marrow mesenchymal stem cells were marked by DAPI in the myocardium at the fifth week. There were bone marrow mesenchymal stem cells marked by DAPI in the infracted area. Results of hematoxylin-eosin staining exhibited that bone marrow mesenchymal stem cells were detected in the infarct area. These results suggested that bone marrow mesenchymal stem cells adhered to the poly(glycolic acid)/poly(e-caprolactone) copolymer stent wel . The complexes of poly(glycolic acid)/poly(e-caprolactone) copolymer and bone marrow mesenchymal stem cells can be used for reparation of myocardium.
10.Diagnosis and differential diagnosis of gliomatosis cerebri with magnetic resonance imaging
Aihong YU ; Kuncheng LI ; Zheng ZHENG ; Changfu PIAO
Chinese Journal of Rehabilitation Theory and Practice 2005;11(9):754-755
ObjectiveTo characterize gliomatosis cerebri on magnetic resonance imaging (MRI) and analyze differential diagnosis.MethodsMRI studies of 12 patients with gliomatosis cerebri were reviewed.ResultsTumors involved at least two lobes of the brain in all patients. Widespread invasion with hyperintensity was noted on T2-weighted MR images. No contrast enhancement occurred.Tumors were confirmed with surgery or biopsy.ConclusionGliomatosis cerebri is best detected with MRI.