2.Study of Leshibao Capsule on gastrointestinal function
Shiwei CHEN ; Hong ZHENG ; Hongmin ZHANG ; Qizhong ZHENG ;
Chinese Traditional Patent Medicine 1992;0(04):-
Objective: To study the function of Leshibao Capsule (Radix Ginseng, Rhizoma Atractylodis, Sea cucumber, etc.) on stomach and intestines. Methods: Gastrointestinal function was measured by small intestine driving test, gastric juice quantity, pepsin activity and gastric emptying time. Results: Leshibao Capsule could increase gastric juice, enhance pepsin activity. It could adjust function of gastrointestine in two ways that showed gastrointestinal movement fasted by neostigmine and inhibited gastrointestinal movement slowed by diphenoxylate and morphine hydrochloride. Conclusion: Leshibao Capsule can adjust gastrointestinal function and facilitate digestive function.
3.Diversity-oriented synthesis and its application in drug discovery.
Lei ZHANG ; Ming-yue ZHENG ; Hong LIU
Acta Pharmaceutica Sinica 2015;50(4):419-433
Diversity-oriented synthesis (DOS) aims to efficiently generate collections of small molecules with diverse appendages, functional groups, stereochemistry and skeletons, thus yielding diverse biological activities capable of modulating a wide variety of biological processes. In this review, we discussed the common strategies employed in DOS with specific examples from recent literature, including reagent-based approach, substrate-based approach, build-couple-pair strategy and privileged substructure-based DOS. The application of some DOS libraries in drug discovery is also presented.
Drug Design
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Drug Discovery
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Small Molecule Libraries
5.Research strategy of the case-control post-genome-wide association study
Jiayu LIU ; Lina ZHANG ; Hong ZHENG
Tianjin Medical Journal 2015;(7):810-812,813
Since the first paper reported the finding of genetic variation contributing to human age-related macular de?generation by genome-wide association study (GWAS) in 2005, large number of human complex diseases associated genetic variants have been identified through GWAS method. However, the biological function of these genetic variants is not very clear. The present paper reviewed the methods of fine-mapping and the progress of the functional studies for these suscepti?bility variants. In the post GWAS Era, the study of genetic mechanisms can help us to understand the disease pathogenesis.
6.Research progress of surgery for age-related macular degeneration with cataract
Xiao-Liang, ZHENG ; Jie, ZHANG ; Hong, YAN
International Eye Science 2017;17(9):1678-1681
Age-related macular degeneration (AMD) and cataract are the most common causes of low vision worldwide.Nowadays, there is still a controversy about whether cataract surgery should be taken in patients combined with AMD and when should the surgery be taken.The aim of this review is to assess the influence of cataract surgery on the occurrence and development of AMD, to analyze the risk factors, to explore the occasion of cataract surgery in patients with AMD, and joint with anti-vascular endothelial growth factor (VEGF) treatment, also including the development and application of intraocular lens.It helps to avoid and postpone the development and progression of macular degeneration after cataract surgery and get good visual outcome.
7.Protective effects of thioltransferase (TTase) on oxidative damaged human lens epithelial cells induced by ultraviolet radiation
Xiaoliang ZHENG ; Jie ZHANG ; Hong YAN
Recent Advances in Ophthalmology 2017;37(7):601-604
Objective To discuss the protective effects of thioltransferase (TTase) on oxidative damaged human lens epithelial cells (HLEC) induced by ultraviolet radiation.Methods HLEC were cultured in vitro and then randomly divided into 4 groups:Normal group:normal cultured HLEC;UV group:normal cultured HLEC + UV radiation (with 302 nm UV radiation irradiation intensity 55.56 μW · cm-2 for 15 minutes,totaling irradiation volume 500 J · m-2);TTase siRNA group:HLEC transfected with TTase siRNA;TTase siRNA + UV group:HLEC transfected with TTase siRNA + UV radiation(with 302 nm UV radiation irradiation intensity 55.56 μW · cm-2 for 15 minutes,totaling irradiation volume 500 J · m-2).TTase mRNA expression was measured by qRT-PCR,the cell proliferation was detected by LDH Assay Kit,and the TTase activity was measured.TTase expression was detected by Western blotting.The levels of TGSH,GSH and GSSG of HLEC were measured,and then GSSG/T-GSH ratio was calculated.Results Cell proliferation ability in UV group,TTase siRNA group and TTase siRNA + UV group were decreased by 21.0%,17.0% and 29.0% compared with normal group (all P < 0.05).TTase activity in UV group was 2.1 times of the normal group,TTlase siRNA group was 67.0% of the normal group,Tlase siRNA + UV group was 1.3 times of TTase siRNA group (all P < 0.05).TTase expression in UV group was 3.9 times of the normal group,TTase siRNA group was 35.0% of the normal group,TTase siRNA + UV group was 3.0 times of siRNA group (all P < 0.05).GSH content in UV group,TTase siRNA group and TTase siRNA + UV group were 68.4%,79.0%,61.7% of the normal group (all P < 0.05).GSSG content in UV group,TTase siRNA group and TTase siRNA + UV group were 2.3 times,1.4 times,3.7 times of the normal group (all P < 0.05).GSSG/T-GSH in UV group,TTase siRNA group and TTase siRNA + UV group were 3.1 times,1.7 times,5.2 times of the normal group (all P < 0.05).Conclusion TTase plays an important protective role in oxidative damaged HLEC induced by ultraviolet radiation.
8.Radiotherapy for 71 patients with tonsillar carcinoma
Jidong HONG ; Qingsong TU ; Zheng ZHANG
Chinese Journal of Radiation Oncology 1993;0(03):-
0.05). Conclusion Brachytherapy ,when used to increase the dose effect,may enhance the local effect without any change in the overall survival.
9.Clinical efficacy analysis of methotrexate and mifepristone in treatment of ectopic pregnancy
Jinhong ZHENG ; Hong ZHANG ; Jinxiang JIANG
Chinese Journal of Biochemical Pharmaceutics 2014;(3):130-131,134
Objective To investigate the clinical efficacy of methotrexate and mifepristone in treatment of ectopic pregnancy. Methods 58 cases with ectopic pregnancy admitted in the Second People's Hospital in Putuo district of Zhoushan city from February 2010 to February 2012 were randomly divided into observation group and control group,each had 29 cases. Control group were received methotrexate 1 mg/kg or 50 mg/m2 once a day by intramuscular injection,observation group were given both methotrexate and mifepristone treatment,the mifepristone was given one piece a day and each piece is 75 mg. the treatment success,b-HCG returned to normal time,normal pregnancy and the occurrence of complications were compared between two groups. Results The treatment success and normal pregnancy rate in observation group were significantly higher than control group(P<0.05),b-HCG returned to normal time was significantly shorter than control group (P<0.05 ). There were no obvious adverse reactions in both two groups, observation group had one light nausea,and control group had one light nausea and one case with alanine aminotransferase (ALT)slightly increased phenomenon,those patients were all back to normal on their own without treatment,the difference of adverse reaction rate between two groups was not significant. Conclusions Methotrexate and mifepristone has good efficacy and are safe and reliable in,treatment of ectopic pregnancy.
10.Anesthetic efficacy of epidural ropivacaine mixed with different doses of snfentanil for hysterectomy
Hong ZHENG ; Zhiqun XIA ; Qing ZHANG
Chinese Journal of Anesthesiology 1994;0(04):-
Objective To assess the efficacy of ropivacaine in combination with different doses of sufentanil for epidural anesthesia in patients undergoing hysterectomy. Methods Eighty ASA Ⅰ or Ⅱ patients aged 30-55 yrs weighing 40-70 kg undergoing elective hysterectomy were randomly divided into 4 groups ( n = 20 each) : ropivacaine group (R) and 3 ropivacaine-sufentanil groups (R-S1-3). The patients were unpremedicated. ECG, BP, HR and SpO2 were monitored during ansthesia. Each patient received an epidural catheter placed at L2,3 interspace. After correct placement of epidural catheter was confirmed 0.75% ropivacaine 13 ml and normal saline (NS) 2 ml were given through epidural catheter in group R whereas in the 3 R-S groups 0.75% ropivacaine 13 ml and sufentanil 10 (R-S1), 20 (R-S2) or 30 (R-S3) ?g in NS 2 ml were injected into epidural space. BP, HR and SpO2 were recorded every 3 min. The onset time, upper spread and duration of sensory block; onset and duration of motor block (Bromage scale); degree of abdominal muscle relaxation; level of sedation (OAA/S scale); anesthetic efficacy and side-effects were recorded. The dose-response curve constructed by probit regression analysis was established to calculate ED50 and ED95. Results The onset time, the time needed to reach the highest sensory level were significantly shorter and the duration of sensory block was significantly longer in the 3 R-S groups than in R group ( P