1.Investigation of research method of HPLC specific chromatography of biochemical injection with multiple components
Chinese Journal of Biochemical Pharmaceutics 2015;(6):161-164
The existing literature on fingerprint chromatography at home and abroad and the quality control of biochemical injection with multiple components were reviewed in this article.Combined with the laboratory research, It is proposed that the strategy for HPLC specific chromatography of biochemical injection with multiple components in order to provide the basis for effectively promoting the establishment and development of HPLC specific chromatography of biochemical injection with multiple components.
2.A double-negative feedback loop lin28-let-7 and tumor
Jingtao PENG ; Ren MO ; Jie FAN
Journal of International Oncology 2014;41(3):165-168
The microRNA let-7 family,functioning as a tumor suppressor,has emerged as a regulator of stem cell differentiation and tumor repression.The RNA-binding protein lin28 is a stem cell pluripotency factor,which contributes to the maintenance of stem cell characteristics and promoting cell malignant transformation.lin28 can block the maturity of let-7 by combining with the precursors of let-7 family miRNAs,which is itself able to repress lin28 by binding to the 3'-UTR of lin28 transcripts,thus forming a feedback loop.The double-negative feedback loop comprising lin28 and let-7 is involved in several biological processes such as differentiation of stem cell,tumorigenesis,invasion and metastasis,drug resistance and relapse,which couldbe a potential target for cancer therapy.
3.Combined Use of Traditional Chinese and Western Medicine for Chronic Pelvic Inflammatory Diseases: A Meta-analysis
Minghui FAN ; Fengli ZHANG ; Ye REN
Acta Medicinae Universitatis Scientiae et Technologiae Huazhong 2010;39(1):127-129
Objective To evaluate the clinical effectiveness of combined use of traditional Chinese and Western medicine for chronic pelvic inflammatory diseases.Methods By searching in the major databases of CNKI,ISI Web of Knowledge,VIP Information and Pubmed,we collected data of randomized controlled trials pertaining to combined use of traditional Chinese and Western medicine in the treatment of chronic pelvic inflammatory diseases.Results Twenty-five randomized controlled trials involving totally 3081 patients were collected according to the inclusion criteria,and meta-analysis of the data indicated that combined use of traditional Chinese and Western medicine can be of great value in the management of chronic pelvic inflammatory diseases in comparison with exclusive use of Western medicine [combined odds ratio(OR)was 3.20 with 95% confidence interval(CI)(2.74,3.73),Z=14.85,P<0.01].Conclusion The clinical evidence derived from the analysis suggests that the combination of traditional Chinese and Western medicine for chronic pelvic inflammatory diseases can be effective with good security.
4.Preparation and properties evaluation of methacrylic alginate gell beads cross-linked by mixed metal-cation.
Xing FAN ; Shengnan LEI ; Liling REN
Journal of Biomedical Engineering 2013;30(6):1272-1275
The aim of this study was to obtain the alginate gels which could have proper compressive strength and excellent permeability for cell proliferation and could have more promising potentials in the application of tissue engineering. Through the reaction of the carboxyl of the alginate and the amino of methacrylic acid, methylacrylic was generated into alginate long chain which could be enhanced by the polymerization of double bond under thermal reaction condition. And then alginate gel beads were prepared using the mixture of calcium chloride and barium chloride solution as cationic crosslinker, and the compressive modulus and permeability of the prepared alginate gel beads were investigated. When the ratio of barium ions to calcium ions was 5:5, the compression modulus was 189.7 kPa, and it showed the best permeability for trypsin with molecular weight of 24 kDa and entrapment effect for bovine serum albumin with molecular weight of 67 kDa. Compared to compositions of other ratios, the alginate gel beads made in 5:5 mixture indicated excellent compressive modulus and permeability. These results indicated that the alginate hydrogel beads with the ratio of barium ions to calcium ions being 5:5 have a potential application in tissue engineering as a support material and encapsulating materials in cell culture.
Alginates
;
chemistry
;
Barium Compounds
;
chemistry
;
Calcium Chloride
;
chemistry
;
Cations
;
Cell Culture Techniques
;
Cell Proliferation
;
Chlorides
;
chemistry
;
Cross-Linking Reagents
;
chemistry
;
Gels
;
chemistry
;
Metals
;
Polymethacrylic Acids
;
chemistry
;
Tissue Engineering
5.The effect of bispecific antibody(BsAb,anti-human bladder cancer/anti-VEGF) on cancer bearing mice
Ming REN ; Lucheng LIU ; Haitao FAN
Chinese Journal of Immunology 1999;0(12):-
Objective:To study the inhibitory role of BsAb(anti-human bladder cancer/anti-VEGF) on human bladder cancer growth.Methods:BsAb was used to treat animal models of BIU-87 cell lines.The tumor inhibition rate was calculated and the tumor microvessel density was detected by immunohistochemical techniques.Results:BsAb could significantly inhibit growth of tumor.And the tumor microvessel density was lower than that of the control group.Conclusion:BsAb could inhibit tumor growth by inhibiting angiogenesis. BsAb may become a new method for human bladder cancer treatment.
6.Analysis of efficacy and sensitivity of monitoring index during enteral nutrition with Pepti-2000 Variant in patients with gastrointestinal flstulas
Danfeng PAN ; Jianan REN ; Chaogang FAN ;
Parenteral & Enteral Nutrition 1997;0(04):-
Objectives:To observe the efficacy of enteral nutrition with short peptide elemental diet(Pepti 2000) in patients with gastrointestinal fistulas and evaluate the sensitivity of nutrition associated index in nutrition monitoring. Methods:Ten cases with gastrointestinal fistulas were administered total enteral nutrition(TEN).They received 146 kJ/(kg?d) of non protein calorie(NPC) and 0.25 g/(kg?d) of nitrogen per day. Body weight,serum albumin, transferrin(TFN), prealbumin(PA),fibronectin(FN),triglyceride and cholesterol were monitored on before and 7th and 28th after TEN. Results:Seven days after TEN,serum PA and FN levels rised significantly( P
7.Impact of synthetucal copper-binding therapy on the biliary copper excretion and hepatolienal ultrasonography of hepatolenticular degeneration
Mingshan REN ; Renmin YANG ; Yuxin FAN
Journal of Clinical Neurology 1997;0(06):-
The aim of our study was to observe changes of biliary trace elements and hepatolienal ultrasonography in patients with HL D treated synthetically by metal-binding a- gents DMSA and DMPS.Using Aloka SSD2 5 6 ultrasonography and WFX-1 E2 atomic ab- sorption spectrophotometer,we analysed and asseyed the sonograms and biliary trace ele- ments of30 patients with differentultrasonographic typesbefore and six weeksafter DMSA and DMPS treatment.Biliary B juice were obtained by duodenal drainage.The results showed that the biliary copper content of patients with glinting echogenic dots type,rock stratum type and tree-like type increaed markedly after therapy(P
8.Effects of low-dose recombinant human growth hormone on acute phase response in patients with abdominal sepsis
Chaogang FAN ; Jianan REN ; Jieshou LI
Parenteral & Enteral Nutrition 2004;0(06):-
Objective: To examine the effects of recombinant human growth hormone on the acute phase response in abdominal sepsis patients.Methods: Prospective unblinded trial was made with each patient serving as his/her own control.Eighteen abdominal sepsis patients were enrolled ranging in age from 24 to 60 yrs.All patients received 10 U/d of GH 48 hrs after performing drainage and for 7days.Results: Serum concentration of constitutive proteins,acute phase protein and cytokines were measured before and 1,3,5 and 7 days after GH administration.GH notablely increased serum constitutive protein levels(prealbumin,transferrin,fibronectin) and decreased serum acute phase protein level(CRP).Cytokine TNF-?,IL-1? and IL-6 had significant change after GH administration,but the changes were not relative to the change of acute phase response.Conclusion: Low-dose rhGH effectively modulated the acute phase response by attenuating production of the hepatic acute phase protein and increasing the synthesis of constitutive proteins.
9.Immunohistochemical study of mast cell tryptase
Cairong GAO ; Guangmu REN ; Housheng FAN
Chinese Journal of Forensic Medicine 1988;0(04):-
Objective Carry out the mast cell tryptase (MCT) granule count in throat, lung and small intestine mast cells in persons died of anaphylactic shock.Method Control group: 10 cases died from severe brain injury. Research group:15 cases died from anaphylactic shock(group A)and 8 cases died of amniotic fluid embolism (group B). H & E staining and immunohistochemical staining were employed and the MCT granule count performed on the throat, lung and small intestine tissue.Results There was marked increase of MCT granule count in the throat (average MCT-positive number of group A 28.48 and of group B 24.35),lung (average MCT-positive number of group A 46.98 and of group B 43.50) and small intestine (average MCT-positive number of group A 48.23 and of group B 42.72) in specimens of group A and group B as compared with the control group (average number in throat 7.97,lung 12.94 and small intestine 20.25).Conclusion Tryptase granular count of MCT increased in throat, lung and small intestine tissue in persons died from anaphylactic shock and amniotic fluid embolism.
10.Early treatment for Grade ⅢB tibial fractures
Hao PENG ; Li FAN ; Wenjie REN
Journal of Clinical Surgery 2000;0(06):-
Objective To seek an effective method for the treatment of grade ⅢB tibial fractures.Method From Oct. 1985 to Oct.1999, 26 cases of grade ⅢB tibial fractures were treated by early soft tissue coverage(including 12 cases of free muscle flaps and 14 cases of local muscle flaps), early fracture fixation(including 21 cases of external fixation and 5 cases of non-reamed intramedullary nail) and early bone grafting(15 cases).Results The follow up duration were from 10 to 32 months with an average of 15.5 months. The success rates of free and local muscle flaps were respectively 91.7 %(11/12) and 92.9 %(13/14)?Infection occurred in 5 cases (3 cases of local superficial infection and 2 cases of osteomyelitis). The time for bone union were from 17 to 66 weeks with an average of 42 weeks. Conclusion "San-Zao"therapy,especially early soft tissue coverage and early fracture fixation is on effective management for grade ⅢB tibial fractures with the advantages of promoting wound healing and bone union and decreasing the possibility of infection.