3.Effect of xiaoyu tablet on blood flow parameters and morphology of carotid artery in atherosclerotic patients.
Mei-lin XIE ; Zhen-lun GU ; Bei ZHONG
Chinese Journal of Integrated Traditional and Western Medicine 2002;22(2):98-100
OBJECTIVETo study the effect of Xiaoyu Tablet (XYT) on blood flow parameters and morphology of carotid artery in atherosclerotic patients.
METHODSUsing color Doppler ultrasonographic technique to examine the blood flow parameters and intimal thickness of carotid artery in 20 patients of carotid atherosclerosis after 24 weeks treatment of XYT, and compared with those in 10 patients treated with gastrodine lipid-lowering tablet.
RESULTSAfter 24 weeks treatment, blood flow parameters of carotid artery were obviously improved and intimal thickness of common carotid arteries in both side was markedly decreased. XYT showed an effect better than that of gastrodine lipid-lowering tablet.
CONCLUSIONXYT is effective in increasing blood flow of cervical and cerebral arteries.
Arteriosclerosis ; diagnostic imaging ; drug therapy ; physiopathology ; Blood Flow Velocity ; Carotid Arteries ; diagnostic imaging ; pathology ; Carotid Stenosis ; diagnostic imaging ; pathology ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Humans ; Male ; Middle Aged ; Phytotherapy ; Tablets ; Tunica Intima ; pathology ; Ultrasonography, Doppler, Color
4.The effect of Rad001 and ATO on activation of the excessive autophagy and apoptotic pathways in SKOV3 ovarian cancer
Nan LIU ; Qitao HUANG ; Zhen YUE ; Xuan LI ; Guobing LIU ; Mei ZHONG
The Journal of Practical Medicine 2016;32(19):3168-3172
Objective To investigate the synergistic anticancer effect of ATO combined with Rad001 on human ovarian cancer cells in vitro and the underlying mechanisms. Methods SKOV3 cells were treated with Rad001, ATO and a combination of Rad001 and ATO, respectively. Cell relative luminescence units, viability, and combination index were tested. The apoptosis was quantified by Flow cytometry. Autophagy and apoptosis associated proteins were measured with immunoblotting. Results Significant decrease in live cell number were observed in cells treated with combination of Rad001 and ATO , compared with single compound treatment (P <0.05). Moreover, a higher rates of autophagy as well as apoptosis were observed in the combination treatment compared with single compound treatment (P < 0.05). Conclusions combination of Rad001 and ATO can result in synergistic cytotoxicity through activation of the excessive autophagy and apoptotic pathway.
5.A retrospective analysis of plague in Three-River Source Region of Qinghai from 1954 to 2007
Ke-mei, WU ; Chao, LI ; Yuan-zhong, WANG ; Jun, LUO ; Zhi-Zhen, QI ; Ning, YANG
Chinese Journal of Endemiology 2008;27(6):647-650
Objective To analyze plague epidemic tendency in the Three-River Region of Qinghai.Methods Using retrospective study,the Three-River Region during 1954-2006 year pestis epidemic focus were investigated and analyzed.Result Pestis prevailed mainly in Yushu,Chindu,Qumalai,Nangqian,Zhiduo and the Geermu.Tanghla Township.It was first found that the nature plague focus of miefitus existed in Chengduo County.There are 1 5 kinds of 12 branches in 8 trees infected plague animals were founded,336 Yersinia pestis were separated from the driven objects.Among them there were 291 Himalayas marmot body,account for 86.60%of the total,13 of Tibet sheep,accounts for 3.87%.10 of Qinghai field-mouse,accounts for 2.98%,Also there were 114 Yersinia pestis which were separated from each kind of vector insect in vivo.And,46 pestis strains came from the axe shape of flea in vivo account for 40.35%(46/114),38 pestis strains separated from Xie mountain flea,account for 33.33% (38/114).During 1960-2006 years there were 85 human plague cases were founded,238 occurred,134 died,the case fatality rate wero 56.30%(134/238),the popular seasons were started from May to November,the peak season happened in Aug and Sep.After Oct mainly due to Tibet sheep pestis which will cause as the origin of infection.The majority of sickness was pulmonary plague,account for 49.58%(117/238),whereas the first round case caused by the gland bubonic plague,account for 77.12%(91/118).Conclusions There are two pestis strains natural epidemic focus places in Three-River Source Region of Qinghai including the Himalayas marmot pestis strain and the Qinghai field-mouse pestis strain.The case of human pestis strain causes by the marmot strain,the fiehl-mouse mold mushroom spawn causes human pestis strain has not yet discovered,Three-River Source Region of Qinghai is a pestis strain key popular area in Qinghai Province.
6.Three cases of hypothyroidism induced by cosmetics containing mercury.
Mei-Xiong LI ; Zao-Qin TAN ; Shao-Zhen QIN ; Li-Ping ZHONG ; Fang-Hua LI ; Heng-Zhuang WANG
Chinese Journal of Industrial Hygiene and Occupational Diseases 2004;22(4):312-313
Adult
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Cosmetics
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adverse effects
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chemistry
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Female
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Humans
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Hypothyroidism
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chemically induced
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Mercuric Chloride
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adverse effects
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analysis
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Mercury
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adverse effects
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analysis
7.Preparation and in vitro and in vivo study of antisense oligodeoxynucleotides-loaded cationic liposomes.
Yang LIU ; Zhen-zhong ZHANG ; Kun LI ; Qian MEI
Acta Pharmaceutica Sinica 2009;44(11):1273-1277
The aim of the paper is to prepare stable antisense oligodeoxynucleotides-loaded cationic liposomes and evaluate the transfection efficiency of asODN to MCF-7 oophoroma cells and study their distribution to different tissues in mice. Antisense oligodeoxynucleotides (asODN)-loaded cationic liposomes were prepared by a thin film-adsorption-lyophilization method which is simple and can overcome crucial pharmaceutical defects (e.g. instability) of liposomes during storage. The morphology was investigated by transmission electron microscope. The size and surface charge of the liposomes were determined by laser particle analyter. The dissociated ligodeoxynucleotides were separated from the liposomes by sephadex column and the entrapment efficiency was determined by using an ultraviolet photometer. Trehalose, mannitol, and glycine were suitable for lyophilization especially trehalose. The resulting liposomes were global microcapsule in a narrow particle size with a mean diameter of 175 nm and 320 nm before and after lyophilization, and a high zeta potentials of +32 mV. The dissociated asODN were separated from the liposomes by sephadex G-50 column and the entrapment coefficient of asODN was 88.4% pre and 83.2% post-lyophilization separately for trehalose. The growth of MCF-7 oophoroma cells were inhibited in vitro obviously (P < 0.05) and transfection efficiency of asODN was 18%, 26%, 44% after 2 h, 4 h and 8 h, respectively. The formulation and method can be used to prepare stable cationic liposomes which can effectively inhibit the growth of MCF-7 oophoroma cells and obtain a high transfection efficiency. This system can improve distribution amount of asODN to tissues especially tumors in mice.
Animals
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Breast Neoplasms
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metabolism
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pathology
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Cations
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Cell Line, Tumor
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Cell Proliferation
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drug effects
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Drug Carriers
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Female
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Freeze Drying
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Humans
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Liposomes
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chemistry
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pharmacokinetics
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pharmacology
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Mice
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Mice, Inbred BALB C
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Neoplasm Transplantation
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Oligodeoxyribonucleotides, Antisense
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chemistry
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genetics
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Particle Size
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Transfection
8.A simple and new type of drop recorder mainly applied in the experiment of frog heart.
Shu-Mei JI ; Qing-Shan WANG ; Zhen-Zhong FAN ; Ying SUN
Chinese Journal of Applied Physiology 2004;20(1):95-97
AIMTo introduce the manufacture and use of a simple, new type of drop recorder of frog heart.
METHODSTo improve the perfusion device of (see text for symbol) and Straub method. Two electrodes of drop recorder were fixed in an injector of 20 ml. The input tube, output tube and resistance tube were all made of plastic material.
RESULTSThis device could be used to observe effects of preload, after-load, hormone and electrolyte on the cardiac output in isolated frog heart.
CONCLUSIONThe new type of drop recorder was economical and could be easily operated, it could be also connected to computer. Using the new type of drop recorder, effects of various physical and chemical factors on cardiac function could be observed directly, accurately.
Animals ; Electrodes ; Heart ; physiology ; Infusion Pumps ; Ranidae ; Weights and Measures ; instrumentation
10.Comparative study of the display in periampullary carcinoma by conventional ultrasound,hydrosonography and double-contrast enhanced ultrasound
Tao, WU ; Zhong-zhen, SU ; Rong-qin, ZHENG ; Jie, REN ; Yan, LV ; Dong-mei, HUANG ; Jun, CHEN
Chinese Journal of Medical Ultrasound (Electronic Edition) 2010;07(12):2075-2081
Objective To compare the value of conventional ultrasound,hydrosonography and double-contrast enhanced ultrasound in the display capacity of periampullary carcinoma and its relationship with the surrounding tissue.Methods A total of 18 patients with the periampullary carcinoma were diagnosed pathologically or by endoscopic biopsy.Each patient had three imaging modalities by conventional ultrasound,hydrosonography and double-contrast enhanced ultrasound.The display capacity and the relationship between the mass and surrounding tissue were compared with three modalities.Results The display rates of limpid visibilities of carcinoma on conventional ultrasound,hydrosonography and double-contrast enhanced ultrasound were 16.7%(3/18),22.2%(4/18) and 94.4%(17/18),respectively;The display rates of duodenum protrusion on three modalities were 0(0/18),38.9% (7/18) and 72.2% (13/18),respectively,with significant differences among conventional ultrasound,hydrosonography and double-contrast enhanced ultrasound.The double-contrast enhanced ultrasound showed two cases of peripheral vascular invasion and one case of intrahepatic metastasis.Conclusion The double-contrast enhanced ultrasound can increase the display capacity of periampullary carcinoma as a new diagnostic modality for periampullary carcinoma.