1.Studies of Active Constituents with Analgesic and Antemetic Actions from Rhizoma Alpiniae Officinarum
Dian CHEN ; Rui HE ; Caijun LI
Journal of Guangzhou University of Traditional Chinese Medicine 2001;0(03):-
ive] To isolate the active constituents with analgesic and antemetic actions from Rhizo-ma Alpiniae Officinarum. [Methods] Polyamide and silica gel column chromatography was used to isolate and extract the analgesic and antemetic constituents. The structure of compounds was identified by ultra violet spectroscopy, infrared spectroscopy, mass spectroscopy and nuclear magnetic resonance spectrosco-py. [ Results ] Galangin and kaempferide are identified as the analgesic and antemetic constituents. [Conclusion] Galangin can be used as the quality control for Rhizoma Alpiniae Officinarum.
2.Design, synthesis and antiepileptic activity of 4-(2-acetoxybenzoylamino) butyrate derivatives.
Wenhu LIU ; Dian HE ; Xinqiang YIN ; Yi LIU
Acta Pharmaceutica Sinica 2011;46(3):299-304
A series of 4-(2-acetoxybenzoylamino) butyrate derivatives were designed and synthesized. All of the novel 12 compounds (7a-7k) were synthesized from gamma-aminobutyric acid (1) as starting material, and their structures were confirmed with IR, 1H NMR, EI-MS and elemental analysis. Preliminary pharmacological test in vitro showed that most of these title compounds possessed antiepileptic activity. Compounds 7i-7k displayed strong antiepileptic activity and are worth for further development. Compounds 4, 7d-7h showed moderate antiepileptic activity. The structure-activity relationship of 4-(2-acetoxybenzoylamino) butyrate derivatives is also discussed preliminarily.
3.The establishment of a new models on experimental hyperlipidemia mice
Zhengrong WU ; Zhigang MA ; Yongxi DONG ; Jincheng HUANG ; Dian HE
Chinese Pharmacological Bulletin 2010;26(3):405-407
Aim To establish an ideal hyperlipidemia animal model by a new way.Methods 30 mice were randomly divided into control group, positive control group and model group.The mice of control group were only fed with a standard diet.Those of positive control group were fed with high fat diet.Those of model group were fed with a standard diet and enough milk.After 30 days the TG, TC, HDL-C and LDL-C of serum and hepatic and LI were detected and pathological changes in the liver of mice were observed microscopically.Results Compared with the control group, the mice of model group developed hyperlipidemia with LI and the serum and the hepatic TG, TC, LDL-C elevated significantly, while HDL-C were significantly lower.The histopathological research showed hepatocellular macrovesicular steatosis and hepatitis in the model group.Conclusion An ideal model of hyperlipidemia is successfully established with standard diet and milk fed to mice for 30 days.
5.Chromatographic study on bio-affinity of drugs to rat aorta tissue and cultured smooth muscle cell in cell membrane
Dian ZHANG ; Bingxiang YUAN ; Xiuling DENG ; Guangde YANG ; Langchong HE
Journal of Xi'an Jiaotong University(Medical Sciences) 1981;0(03):-
Objective To compare the specificities of the cell membrane stationary phases(CMSP) with cell membrane chromatography(CMC).Methods Cell chromatographic columns were constructed for both rat aorta tissue cells and cultured rat aorta smooth muscle cells.Then the chromatographic affinities of ten ligands of ?-adrenergic receptor(?-AR) with both said chromatographic columns were investigated.Capacity factors(k'),as a chromatographic parameter,were calculated.Results The correlation analysis showed a positive correlation between the rat aorta tissue CMSP and the cultured rat aorta smooth muscle cell CMSP,with correlation factor of r=0.923,P
6.Clinical study on non-penetrating trabecular surgery with human umbilical vein and mitomycin C
Xun, LI ; He-Nan, LIU ; Dian-Wen, GAO
International Eye Science 2011;11(6):943-946
AIM: To investigate the clinical therapeutic effects of human umbilical vein (HUV)implantation and mitomycin C (MMC) in non-penetrating trabecular surgery (NPTS). METHODS:A total of 32 patients (46 eyes) with uncontrolled primary open angle glaucoma (POAG) were divided into two groups: HUV+MMC group (n=25), SKGEL+MMC group (n=21). The procedure commenced with the creation of a limbus based conjunctival flap. After the dissection of a superficial limbus based rectangular scleral flap, MMC(0.4mg/mL) was used superior and inferior surface of the superficial scleral flap for three minutes. A second limbus based scleral flap was carefully dissected beneath the previous one towards the choroid. Schlemm's canal was deroofed during the extension of the deep scleral flap toits limbal edges. HUV or SKGEL fixed on the bed of sclera in experimental group. Postoperative examinations were performed at 1 week,2,4 weeks;2,6,12 months. IOP,best-corrected visual acuity(BCVA), functional blebs and success rate were examined. RESULTS: There were no statistically differences with postoperative IOP in HUV+MMC group and SKGEL+MMC group (P>0.05) during 1 week to 12 months. There was no difference with postoperative function blebs and the change of BCVA during 1 week to 12 months between HUV+MMC group and SKGEL+MMC group (P>0.05).At 12 months after surgery, the success rate was 84% in HUV+MMC group,86% in SKGEL+MMC group. CONCLUSION: The application of HUV in NPTS can prevent the adhesion of filtering channel and it can improve the success rate of NPTS. Compared with SKGEL, HUV has lower price. So it is a better implant.
7.Self-made Kirschner wire hook for the treatment of severe displaced proximal humeral fractures in children.
Bo ZHAO ; Xia RAN ; Ming-Hua ZHANG ; Dian-Ming JIANG ; Chao HE
China Journal of Orthopaedics and Traumatology 2014;27(7):579-582
OBJECTIVETo explore the clinical efficacy of self-made Kirschner wire hook in the treatment of severely displaced proximal humerus fractures in children.
METHODSFrom January 2007 to February 2012,35 children with severely displaced proximal humerus fractures were treated with self-made Kirschner wire hook fixation,including 25 boys and 10 girls with an average age of 13.2 years old ranging from 5 to 17. The duration from injury to operation was 1 to 10 days with an average of 4.5 days. Preoperative diagnoses were confirmed by X-ray films as type III in 26 cases and type IV in 9 according to the Neer-Horwitz classification of the proximal humerus fractures. All fractures were close fracture without nerve or vascular injuries. Anatomical reduction was achieved by open reduction and the fractures were fixed by self-made Kirschner wire hook. Intra-operative and postoperative complications, postoperative radiographic examination, upper extremity length and range of shoulder motion were observed and recorded. Neer score system was used to evaluate shoulder function.
RESULTSAll patients were followed up from 6 to 18 months with an average of 12.1 months. The mean Neer score of the injured side was 94.2 +/- 4.8 (ranged, 84 to 99), 30 patients got an excellent result and 5 good according to the Neer scores. The X-ray showed all the fractures healed without shortening deformity or epiphyseal arrest at early stage. There were no complications related to the implant including loosening or breakage of the self-made Kirschner wire hook. The range of shoulder motion in the injuried side was similar to the normal side, except in abductor lift. All the patients could participate in normal physical activities.
CONCLUSIONThe method of open reduction and fixed with self-made Kirschner wire hook is a safe,effective,convenient treatment for severely displaced proximal humeral fractures in children.
Adolescent ; Bone Wires ; Child ; Child, Preschool ; Female ; Fracture Fixation, Internal ; methods ; Humans ; Humeral Fractures ; physiopathology ; surgery ; Male ; Range of Motion, Articular
8.Novel methods for studies of testicular development and spermatogenesis: From 2D to 3D culture.
Lian-dong ZHANG ; He-cheng LI ; Tong-dian ZHANG ; Zi-ming WANG
National Journal of Andrology 2016;22(3):258-263
The two-dimensional model of cell culture is an important method in the study of testicular development and spermatogenesis but can not effectively mimic and regulate the testicular microenvironment and the whole process of spermatogenesis due to the lack of relevant cell factors and the disruption of a three-dimensional spatial structure. In the past 20 years, the development and optimization of the in vitro model such as testis organotypic culture and in vivo model such as testis transplantation achieved a transformation from two- to three-dimension. The maintenance and optimization of the testicular niche structure could mimic the testicular microenvironment and cell types including Leydig, Sertoli and germ cells, which showed similar biological behaviors to those in vivo. Besides, the cell suspension or tissue fragment floats in the gas-liquid interface so that the development of somatic and germ cells is well maintained in vitro whilst the feedback linkage between grafted testis tissue and hypothalamus-pituitary of the host rebuilt in the in vitro model provides an endocrinological basis for spermatogenesis, which serves as an effective methodology to better understand the organogenesis and development of the testis as well as testicular function regulation, advancing the concept of treatment of male infertility. Al- though each of the methods may have its limitations, the progress in the processing, freezing, thawing, and transplantation of cells and tissues will surely promote their clinical application and present their value in translational medicine.
Cell Culture Techniques
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Germ Cells
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physiology
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Humans
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Infertility, Male
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therapy
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Male
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Spermatogenesis
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physiology
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Testis
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growth & development
9.Case study on the pay by segmentation and quota in NRCMS
Heng WANG ; Dian ZHOU ; Beihai XIA ; Hong DING ; Zhaohua KE ; Zhigang HE
Chinese Journal of Hospital Administration 2009;25(4):277-280
Objective To refrain the medical costs from out-of-control increase, and identify a per-disease payment mode suitable for New-CMS.Methods Case studies were conducted on all the data of five diseases in the course of three years, in a field study of the pilot counties for NRCMS in Anhui Province.Results This system of per-disease "pay by segmentation and quota" is composed of five parts: choice of diseases, measurement of payment criteria, method of settlement, method of compensation, and methods of supervision.Conclusion This system is an effective way to keep the medical costs in the NRCMS under control, given an effective play of the five supportive measures including the clinical pathways for individual diseases.
10.Analysis of factors affecting vaginal birth after cesarean
Shaowen WU ; Yingzhou LU ; Shanshan WANG ; Xiaojing DONG ; Jianhong FANG ; Dian HE ; Weiyuan ZHANG
Chinese Journal of Obstetrics and Gynecology 2016;51(8):576-580
Objective To investigate the factors affecting the vaginal birth after cesarean (VBAC). Methods Totaly 298 women who underwent trial of labor after cesarean section (TOLAC) from Jan 2015 to Dec 2015 were recruited from Beijing Obstetrics and Gynecology Hospital, FuXing Hospital, Tongzhou Maternal and Child Health Hospital of Beijing, the Second Affiliated Hospital of Chongqing Medical University and the People′s Hospital of Chengyang District of Qingdao. The maternal age, the interval from the last cesarean section, the body mass index (BMI) before pregnancy, the weight gain during pregnancy, the way into labor, the Bishop score before labor, the gestational age and the birth weight of the neonate were recorded in a self-made form. The factors affecting VBAC were analyzed by univariate analysis and multivariable logistic regression. Results (1)The incidence of VBAC, uterine rupture, postpartum hemorrhage and neonatal asphyxia were 70.5%(210/298), 2.7%(8/298), 9.4% (28/298) and 1.3% (4/298), respectively. No maternal death and perinatal death occurred. (2)The univariate analysis suggested that the maternal age, the BMI before pregnancy, the Bishop score before labor, the labor induction, the gestational age at delivery and the neonatal weight were factors affecting VBAC. The maternal age and the Bishop score before labor were significantly higher in the VBAC group than in the unsuccessful TOLAC group(P<0.05). While the BMI before pregnancy, the induction rate, the gestational weeks at delivery and the birth weight of the neonate were significantly lower in the VBAC group than in the unsuccessful TOLAC group (P<0.05). Multivariable logistic regression analysis showed that successful VBAC was affected by the maternal age, the BMI before pregnancy, the Bishop score before labor and the birth weight of the neonates(P<0.05). Conclusion The maternal age, the BMI before pregnancy, the Bishop score before labor and the birth weight of neonate are the main factors affecting VBAC.