2.To induce uveal melanoma cells apoptosis by mixed structure bcl-2 antisense oligodeoxynucleotides multidrug resistance
Linjie GUO ; Zhongyao WU ; Sheng ZHANG
Chinese Journal of Ocular Fundus Diseases 1996;0(01):-
Objective To investigate the role of anti apoptosis gene bcl 2 in the survival of cultured uveal melanoma UM cells. Methods Antisense oligodeoxynucleotides (AS ODN) bcl 2 were delivered with cationic lipid to primary cultured UM cells. The inhibitory effect of AS ODN bcl 2 on proliferation of UM cells was examined by 3, 4,5 Dimethyliazol 2,5 diphenyl tetrazolium bromide (MTT) method. Using DNA ladder to determine if the UM cells had been apoptotic. Bcl 2 expression was detected by RT PCR and Westernblot technics. Results The effect of AS ODN bcl 2 in inhibiting the proliferation of cultured UM cells had opposite relation to dosage. It down regulated the mRNA and protein level of bcl 2 gene, and the sense ODN didn′t have this effect. Conclusion AS ODN bcl 2 can down regulate bcl 2 expression, inhibits UM cells proliferation and induces apoptosis.
3.Clinical outcomes of tibial plateau fractures (SchatzkerⅠ,Ⅱ) treated with arthroscopy-assisted operative management and locked by LCP
Bin CHEN ; Gang GUO ; Sheng ZHANG
Orthopedic Journal of China 2006;0(06):-
[Objective]To discuss the clinical outcomes of low-energy tibial plateau fractures treated with arthroscopy-assisted operative management and locked by LCP.[Method]From January 2006 to March 2007,15 patients with tibial plateau fractures(SchatzkerⅠ,Ⅱ)were reduced with arthroscopy-assisted and treated by LCP and bone defects were filled with homogeneous allograft bone.[Result]With follow-up visits for 12~26 months,all cases were healed.According to creiteria of Rasmussen,excellent were in 10 cases,good in 4 cases,fair in 1 case,with the rate of being excellent and good added up to 93%.[Conclusion]LCP fixation is an effective technique for the low-energy tibial plateau fractures treatment with the advantage of less invasion,steadier fixation and lower complication rate.Arthroscopy-assisted operative management can help to reduce reduction loss from intra-articular more precisely to reach a higher union rate.It is also a preferable method for low-energy tibial plateau fracutures treatment(SchatzkerⅠ、Ⅱ).
4.Mild hypothermia reduces and delays cell apoptosis in the hippocampal CA_1 region following ischemia-reperfusion injury
Fu-Sheng ZHANG ; Gang ZHANG ; Rui-Guo DONG ;
Chinese Journal of Physical Medicine and Rehabilitation 2003;0(09):-
Objective To investigate the protective effects of mild hypothermia on cells in the CA_1 region of the hippocampus in gerbils following global ischemia-reperfusion injury(IRI),and to explore their mechanism. Methods IRI models were established in 75 gerbils.Any changes in TUNEL positive cells and the expression of Bax and Cytochrome C were then observed in normothermic(N) ,hypothermic(H)and sham(S) groups through immu- nohistochemistry methods.Results In the H group(as compared with the N group)apoptotic cells in the CA_1 sub- field of the hippocampus significantly decreased.The expression of Bax and Cyt C at 3 h,6 h and 1 d were de- creased,and the expression fastigium was delayed.Conclusion Mild hypothermia can moderate and delay cell ap- optosis,and its mechanism might be related with reducing and delaying the expression of Bax and Cyt C released by mitochondria.
5.Chemical constituents of Osmanthus fragrans fruits.
Wei YIN ; Jin-Qi LIU ; Guo-Sheng ZHANG
China Journal of Chinese Materia Medica 2013;38(24):4329-4334
By Silica gel, Sephadex LH-20 and other materials for isolation and purification and by physicochemical methods and spectral analysis for structural identification, 23 compounds were isolated and identified from ethyl acetate portion of alcohol extract solution of Osmanthus fragrans fruits. Their structures were identified as nicotinamide (1), D-allitol (2), 5-hydroxymethyl-2-furancarboxaldehyde (3), acetyloleanolic acid (4), benzoic acid (5), ergosta-7,22-dien-3-one (6), beta-sitosterol (7), borreriagenin (8), cerevistero (9), c-veratroylglycol (10), methyl-2-O-beta-glucopyranosylbenzoate (11), 3', 7-dihydroxy-4'-methoxyisoflavon (12), umbelliferone (13), caffeic acid methyl ester (14), oleanolic acid (15), (-) -chicanine (16), dillapiol (17), 3beta,5alpha, 9alpha-trihydroxyergosta-7-22-dien-6-one (18), 2alpha-hydroxy-oleanolic acid (19), betulinic acid (20), betulin (21), 3, 3'-bisdemethylpinoresinol (22), and lupeol (23). All compounds were isolated from the osmanthus fruit for the first time. Except for compounds 4, 7, 15, 19, 23, the rest ones were isolated from the this plant for the first time.
Drugs, Chinese Herbal
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chemistry
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Fruit
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chemistry
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Oleaceae
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chemistry
7.Report of a case with infantile Crohn's disease.
Xiao-lei WANG ; Guo-ying ZHANG ; Hong-sheng MA
Chinese Journal of Pediatrics 2005;43(9):704-705
Crohn Disease
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pathology
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Humans
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Infant
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Male