1.Effect of Processing of Radix et Rhizoma Rhei with Salt on Its Anthraquinones
Bingmei XIAO ; Gang PEI ;
Chinese Traditional Patent Medicine 1992;0(02):-
Objective: To investigate the effect of processing Radix et Rhizoma Rhei with Salt on its anthraquinones component, so then the mechanism of processing with salt can be pointed out. Methods: Anthraquinones contents of crude Radix et Rhizoma Rhei, its processed products with dilute brine and strong brine were determined by spectrophotometry respectively. Results: There were no significant differences in anthraquinones contents among three kinds of Radix et Rhizoma Rhei. Conclusion: The processing of Radix et Rhizoma Rhei with salt doesn't affect its anthraquinones content, which suggests that the mechanism of processing with salt be worthy of discussing.
2.Clinical value of contrast - enhanced ultrasound for intra - ocular tumor diagnosis
International Eye Science 2016;16(7):1386-1388
AIM: To investigate the application value of contrast -enhanced ultrasound ( CEUS) and analysis software for intra-ocular tumor diagnosis.
METHODS:Retrospective analysis for 90 cases (90 eyes) with intra- ocular tumor with CEUS examination, and all cases were confirmed by pathology after surgery or clinical comprehensive diagnosis and follow-up.
RESULTS: Choroidal hemangioma, choroidal melanoma, choroidal metastatic carcinoma had obvious different CEUS enhancement pattern, quantitative analysis indexes of those tumors by imaging analysis software were significantly different (P<0. 05).
CONCLUSION: The CEUS can provide quantitative analysis for intra - ocular tumor with preferable clinical application value.
3.Research progress on the effective components of traditional Chinese medicine for improving AD-related cognitive impairment
Meng-yao LEI ; Pei-pei GAO ; Jian-gang LONG
Acta Pharmaceutica Sinica 2022;57(7):1925-1936
Alzheimer's disease (AD) and other aging-related diseases have become an important public health issue in China. However, current clinical drugs have failed to reverse the pathological process of AD. The holistic approach of traditional Chinese medicine offers advantages in improving cognitive function in AD through multiple molecular pathways, and may have potential for preventing AD. This paper summarizes the effects of classical traditional Chinese medicine and its active components in the improvement of AD-related cognitive dysfunction and describes the functional targets and related molecular mechanisms. This may have significance for the prevention and treatment of AD through multi-target intervention.
4.Femoral lengthening
Bin CHEN ; Gang WANG ; Guoxian PEI ;
Chinese Journal of Orthopaedic Trauma 2004;0(09):-
Limb lengthening has been applied to deal with inequality of lower limb for a long time. In some special cases femoral lengthening can be chosen for the treatment, though this technique is more difficult than tibial lengthening. We have reviewed in this paper the indications, different methods, newest devices and skills, prevention and cure of complications in femoral lengthening. Because of the high incidence of complications due to this operation, doctors should be very cautious when they determine the cases for the operation.
5.Operative management of complex acetabular fractures of Letournel classification
Gang WANG ; Guoxian PEI ; Bin CHEN
Chinese Journal of Orthopaedic Trauma 2004;0(12):-
Objective To discuss the diagnosis and operative treatment of the complex acetabular fractures of Letournel classification. Methods On the basis of the three- dimensional computed tomography, 75 cases of complex acetabular fractures were diagnosed and classified according to Letournel classification. They were treated through the anterior, posterior, combined anterior- posterior and the improved iliofemoral approaches. All the fractures were fixed with screws and AO reconstruction plates. Results All the cases were followed up for 6 to 96 months, with an average time of 46 months. They were evaluated according to D' Aubigne and Pestel criteria for joint functions and Epstein criteria for radiographic manifestation. 34 cases of the series were rated as excellent (45.23% ), 28 case as fine (37.33% ), 8 cases as fair (10.67% ) and 5 cases as poor (6.67% ). Conclusion Enough image data, simulation in vitro on a pelvic specimen, maximal anatomical reduction and appropriate approach are the basis for satisfactory outcomes.
6.Relationship between the hypnotic effect of thiopental sodium with N-methyl-D-aspartate (NMDA),glycine and opioid receptors
Huiping LI ; Gang WU ; Shicheng PEI
Medical Journal of Chinese People's Liberation Army 1981;0(04):-
0.05), while strychnine and naloxone obviously lengthened the sleeping time of the mice injected with thiopental sodium (P
7.Sensitized dendritic cells with apoptotic hepatoma cells induced by mitomycin
Gang WU ; Benli HAN ; Xuetao PEI
Chinese Journal of Tissue Engineering Research 2006;10(32):-
BACKGROUND: Dendritic cells play an important role in antigen present in vivo, and the mechanism of tumor cells in escaping the antigen presentation of dendritic cells existed in the patients with tumor.OBJECTIVE: To sensitize dendritic cells from human peripheral blood with apoptotic hepatoma cells induced by mitomycin.DESIGN: A randomized control trial by taking apoptotic hepatoma cell sensitized dendritic cells as the observed subjects.SETTINGS: Institute of Field Surgery, Daping Hospital, the Third Military Medical University of Chinese PLA; Institute of Radiation Medicine,Chinese PLA Academy of Military Medical Sciences.MATERIALS: The experiments were carried out in the Institute of Radiation Medicine, Chinese PLA Academy of Military Medical Sciences from April 1998 to May 1999. The cell strain was the QBC939 bile duct cancer cell strain, and mitomycin was used as the antitumor drug.METHODS: Mononuclear cells were isolated from the peripheral blood of normal people, 50μg/L granulocyte-macrophage colony stimulating factor(GM-CSF) and 1 000 U/mL interleukin-4 (IL-4) were added, once every other day for 4 times. On the 3rd day of culture, the apoptotic bile duct cancer cells induced by mitomycin was added, and then cultured in vitro for 4 days, finally the dendritic cells were collected.MAIN OUTCOME MEASURES: ① The identification of the cultured dendritic cells was observed; ② The dendritic cells were co-cultured with necrotic and normally cultured bile duct cancer cells respectively, and the phagocytized apoptotic body loaded antigens were observed; ③ The immunostimulatory activity of dendritic cells (1×103, 5×103 and 1×104/well)and that after loaded by antigen were detected, and the mononuclear cells were taken as controls.RESULTS: ① The cultured and amplified dendritic cells expressed high levels of costimulatory molecules of CD1a and B7, and there were typical irregular processes on the surface. ② The tumor cells formed apoptotic bodies when they were induced by mitomycin, which were arrested and phagocytized by dendritic cells. ③ The ability of the antigen loaded dendritic cells in stimulating the proliferation of allogenic lymphocyte T was further enhanced.CONCLUSION: The apoptotic tumor cells induced by mitomycin can induce the mononuclear cells from human peripheral blood differentiating into the dendritic cells with the concomitance of GM-CSF and recombinant IL-4 and amplify dendritic cells. Meanwhile, the dendritic cells can effectively present the antigens of apoptotic bile duct cancer cells, and it probably becomes a new effective approach for tumor antigen to sensitize dendritic cells.
8.Degeneration of Dendritic Cells from Human Peripheral Blood and Acquirement Antigen from Apoptotic Hepatochlangioma Cells
Gang WU ; Benli HAN ; Xuetao PEI ;
Chinese Journal of Clinical Oncology 2000;27(11):808-811
Objective:To eastablish the efficient presentation of antigen from apoptotic cells by human DC from peripheral blood. Methods: using recombinant human granulocyte/macrophage colonystimulating factor(GM- CSF) and interleukin 4 (IL- 4 ) we have established dendritic cells (DC)from peripheral blood monocyte that maintain the antigen capturing and processing capacity characteristic of immature dendritic cells in vivo. GM - CSF 50ng/ml , IL- 41 000ng/ml once two days(total four). on the 3 rd day of culture, immature DC and apoptotic hepatochlangioma cells were in coculture lasting 7 days. Results:these cells had typical dendritic morphology, express high levels of CD1a ,B7 and acquired antigen from apoptotic cells and induced an increased T cell stimulatory capacity in MLR. Conclusions:we have established DC from blood mononuclear tells using GM- CSF and IL- 4 and DC can be efficiently drived from apoptotic cells and can induce the increase of T cells obviously. It probably becomes an effective approach of antigen transduced with DC.
9.One case report of foreign body in the eustachian tube taken out by extended anterior tympanotomy.
Shu-sheng GONG ; Pei CHEN ; Gang ZHONG
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2006;41(9):643-643
Ear, Middle
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surgery
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Eustachian Tube
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Foreign Bodies
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surgery
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Humans
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Male
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Young Adult
10.Network pharmacology study on major active compounds of siwu decoction analogous formulae for treating primary dysmenorrhea of gynecology blood stasis syndrome.
Pei LIU ; Jin-Ao DUAN ; Gang BAI ; Shu-Lan SU
China Journal of Chinese Materia Medica 2014;39(1):113-120
OBJECTIVETo explore the molecular mechanisms of main active ingredients of Siwu decoction analogous formulae for treating primary dysmenorrhea of gynecology blood stasis syndrome by network pharmacology study, and to investigate the correlations between multi-compounds, multi targets and multi pathways.
METHODMajor active compounds from Siwu decoction analogous formulae, including ligustilide, butylidene phthalide, senkyunolide, ferulic acid, gallic acid, peoniflorin, jioglutin A, catalpol, transanethole, zingiberone, commiphoric acid, eugenol, isorhamnetin-3-O-neohesperidoside, wulingzhic acid, alpha-cyperone, cyperene, costunolide, costic acid, tetrahydropalmatine, protopine, amygdalin, 24-methylene cycloartanol, oleic acid, linoleic acid, 3-p-coumaroylquinic acid, hydroxysafflor yellow A, coptisine, berberine, jatrorrhizine, baicalein, baicalin, wogonin were collected to build component-protein networks based on PharmMapper database. The targets information access was used to construct and visualize components-targets-pathways network model using the kyoto encyclopedia of genes and genomes (KEGG) pathway database and Cytoscape software.
RESULT AND CONCLUSIONSerine threonine protein kinases play an important role in the process of cells. They were potential targets in the effect of Siwu decoction analogous formulae. The effect of main active ingredients involved 51 the pathway. Besides the same ones, Shaofu Zhuyu decoction had more effect on lipid metabolism, Xiangfu Siwu decoction on amino acid metabolism pathways, Taohong Siwu decoction on carbohydrate metabolism, while, Qinlian Siwu decoction on ErbB, VEGF signal transduction pathway. Siwu decoction and its derived formulae not only had common targets and pathways, but also had their own emphasis. This reflected the formulae effect mode of multi-ingredients, multi-targets and multi-pathways. It may provide clues to deeper study of molecular mechanism of Siwu decoction analogous formulae action.
Drugs, Chinese Herbal ; chemistry ; pharmacology ; Dysmenorrhea ; drug therapy ; genetics ; metabolism ; Female ; Gynecology ; Humans ; Medicine, Chinese Traditional ; methods ; Signal Transduction ; drug effects ; genetics