AIM To study the clinical effect and mechanism of retention enema with quick-acting Kuijie powder(QAKJP) in treating chronic non-specific ulcerative colitis (CUC).METHODS A treatment group of 156 patients treated with QAKJP and a control group of 78 patientstreated with sulfasalazine orally were established randomly and their scores of main symptoms and signs weremeasured and compared before and after treatment. Animal experiments were conducted at the same time.RESULTS The total effective rate in the treatment and control group was 98.7% and 70.5% respectively,the clinical cure rate was 78.2% and 6.4% and the recurrence rate 5.3% and 20.0% respectively. Theeffectiveness of the treatment group was markedly superior to that of the control group, P<0.01.Experimental study showed QAKJB could rapidly alleviate the congestion and edema of intestinal mucosa,promote the healing of ulcer, inhibit spasm of colon and had significant antidiarrheal action and antagonisticeffect against allergic mediator histamine.CONCLUSION Retention enema with QAKJP has good effect on CUC, with low recurrence rate and notoxic or side effect.

作者： 刊期： 2000年第03期

AIM To evaluate the significance of alhafetoprotein (AFP). gamma-glutamyltransferase (GGT).Carcinoembryonic antigen (CEA) and carbohydrate antigen 125 (CA125) in diagnosis of primary hepaticcancer.METHODS Thirty-six patients with liver carcinoma (male 26, female 10, aged 29- 72 years), 6 withhepatic metastasis of gastrointestinal cancer (all male, aged 37- 69 years), 62 with benign liver diseases(male 53, female 9, aged 32- 71 years) and 222 without liver diseases (male 152, female 70, aged 22- 76years) were studied. Blood samples were taken by venipuncture. Serum was separated and frozen at -20℃until the analysis was made. AFP, CEA and CA125 were measured by RIA.RESULTS Serum AFP in liver cancer (476.3 - 181.4 ug/L) was significantly higher than that in hepaticmetastasis of gastrointestinal cancer, benign liver diseases and monhepatic diseases (P<0.01). Serum GGTin liver cancer was 621.1±289.9 w/L, significantly higher than that in the other groups (P<0.05). CA125level in liver cancer (236.3±127.2 u/L) was markedly higher than that in benign liver diseases andmonhepatic diseases (P<0.01), but no significantly difference was found in hepatic metastasis ofgastroentestinal cancer (219.4±143.7 U/L). Serum CEA in liver cancer (8.8±2.1 ug/L) was markedlylower than that in hepatic metastasis of gastroentestinal cancer (32.7±7.2 ug/L) (P<0.01). Thesensitivity of AFP, GGT, CA125 and CEA in the diagnosis of liver cancer was 72.2%, 88.9%, 63.9% and11.1% repectively; their specificity was 93.1%, 71.1%, 78.2% and 65.8% respectively. The diagnosticsensitivity and specificity of simultaneous detection of AFP, GGT and CA125 in liver cancer were 91.7% and88.4% respectively.CONCLUSION AFP is superior to GGT, CA125 and CEA in the diagnosis of liver cancer; simultaneousdetection of AFP, GGT and CA125 might increase the diagnositic sensitivity and specificity of liver cancer.

作者： 刊期： 2000年第03期

mycobacterium avium; paratuberculosis; glycosyltransferases; bacillus subtilis;chromatography, affinity; antibodies, anti-idiotypic

作者： 刊期： 2000年第03期

AIM To prepare 5-fluorouracil solid lipid nanoparticles (5-FuE-SLN) with liver targeting.METHODS 5-Fu was employed as model drug to acylate with stearyl chloride and obtain 5-Fu precurser N1-stearyl-5-Fu (5-FuE). The precurser was determined by nuclear magnetic resonance and infraredspectrometry and used to prepare 5-FuE-SLN by the method of physical agglomeration. TransmissionElectron Microscopy (TEM) was employed to study the shape, mean size and particle distribution of 5-FuE-SLN. The drug loading, and releasing characteristics in vitro, the drug distribution and pharmacokinetics invivo were also investigated by HPLC method.RESULTS The average diameter was 240.19nm, and the drug loading was 20.53%. The releasingcharacteristics in vitro was fitted to first-order pharmacokinetic model. The distribution of 5-FuE-SLN inmice showed that 5-FuE-SLN had significant liver targeting being compared with 5-Fu injection. Theconcentration of 5-FuE-SLN group in mice liver was double over that of control group. The mainpharmacokinetics parameters in rabbits were as follows: Vc = 0.04336 L·kg-1, T1/2β- 1.2834 h, CL =0.1632 L·h-1CONCLUSION 5-FuE-SLN has the characteristic of liver targeting. Using 5-Fu precurser to enhance itsliposoluble properties and the method of preparation presented in this paper seems to have significantadvantages and important reference value.

作者： 刊期： 2000年第03期

AIM In order to evaluate the diagnostic parameters of characteristic pathologic change in the liver biopsyspecimens, we developed a numerical scoring diagnostic standard.METHODS Ten of the eleven categories of characteristic pathologic lessions appearing in acute hepatitisand 11 categories in chronic hepatitis were selected. Each of them was graded 3 scales, then the essentialscore and scale score were set up. Adding up to all the numerical scores of individual components, formed thetotal scores of histological chronic activity index (HCAI) and histological acute activity index (HAAI). Onethousand and eight patients with various liver dieases were studied,and compared with conventional readingsand Knodell'HAI through F analysis and q test.RESULTS The HAAI of acute, subacute, and chronic severe hepatitis was 43.56±9.08, 51.63±12.13,and 65.45±17.51 respectively. There was significant difference between each other (P<0.01). TheirHCAI was 14.44±8.31, 57.39±10.98, and 58.14 12.24 respectively. HAAI of mild, moderate, andsevere chronic hepatitis was 18.57±7.00, 26.43±7.49, and 35.58±11.47 respectively (P<0.01), andHCAI was 13.2±6.90, 40.29±10.99, and 50.02±9.78 respectively. There was signficant difference(P<0.01). The HAAI of active liver cirrhosis and silent liver cirrhosis was 64.96±16.60 and 31.17±9.07respectively, the difference being significant (P < 0.01), and HCAI was 66.00±9.62 and 69.84±8.93, withno significant difference (P >0.05).CONCLUSION The diagnostic standard of histological activity index that we set up, was more useful aseither an alternative or supplement to the conventional terminology and KnodellHAI.

作者： 刊期： 2000年第03期

AIM To study the change of trace elements in the hair of patients with esophageal carcinoma and the role oftrace elements in its development and progress.METHODS The hair of 60 normal people and 126 patients was collected and was divided into groupsaccording to the patients' pathologic changes. The atomic absorption method and fluorescence method wereused to measure the trace elements of copper, zinc, iron, calcium and selenium.RESULTS Zinc in the hair of various patients: a remarkable difference was found between normal people(182mg· kg 1)and the patients (103- 81.6mg·kg 1) (t = 3.79, P<0.01 Duncan' new multiple rangemethod). There was a certain difference between simple hyperplasia and cancer (t = 3.21, P<0.01 ). As forcopper, a great difference existed between normal people (12.01mg· kg-l) and patients with dysphagia (15.16mg·kg-1) and cancer (17.02-17.15mg·kg-1) (t=2.43, P<0.05). No change of zinc and copperwas observed in cancer patients (t = 1.61, P >0.05). The ratio of zinc to copper increased with thedevelopment of pathologic change. The selenium levels in patients (0.46-0.67mg·kg-1) was below that ofnormal people (l.03mg·kg-1), while iron and calcium levels in the patients decreased with the developmentof pathologic process.CONCLUSION Both zinc and copper play an important role in the pathologic change of esophagealcarcinoma. Zinc and copper in the hair changed with development of the pathologic process. Zinc revealedpositive correlation ( r = -0. 889, P < 0.01 while copper showed negative correlation ( r = 0.921, P < 0.01 ).The ratio of copper to zinc in the hair is of great diagnostic value.

作者： 刊期： 2000年第03期

AIM To study the clinical significance of alterations of serum hyaluronic acid in rats with carbontetrachioride-induced liver fibrosis.METHODS Rat liver fibrosis model was induced by carbon tetrachloride (CC14). The rats were divided intofive groups; group 1 (control): 0 week with no CCl4-inducing; group 2, 3, 4 and 5: 3, 6, 9 and 12 weeksafter CCl4-induction respectively. Serum HA level was analysed among various liver fibrosis groups andcontrol, and then compared the HA findings with the hepatic histopathology.RESULTS During rat liver fibrosis, serum HA levels of the liver fibrosis groups (group 2: 7.98ng/mL;group 3: 20.10 ng/mL; group 4:229.73 ng/mL; group 5:324,74 ng/mL) were significantly higher thanthat of control group (group 1:0.21 ng/mL) (P<0.01), in which group 4 and group 5 are much higher1094 times (229.73ng/mL/0.21 ng/mL) and 1546 times (324.74 ng/mL/0.21 ng/mL) than group 1respectively. When compared with each other, the serum HA levels are 38 times (7.98ng/mL/0.21 ng/mL; P<0.01, group 2 vs group 1); 2.5 times (20.10ng/mL/7.98 ng/mL; P<0.01, group 3 vsgroup 2); 11.4 times (229.73 ng/mL/20.10 ng/mL; P<0.01, group 4 vs group 3); 1.4 times (324.74 ng/mL/229.73 ng/mL; P<0.01, group 5 vs group 4) respectively.CONCLUSION The results demonstrated that the dynamic alterations of serum HA play an important rolein the early clinical diagnosis and staging of liver cirrhosis.

作者： 刊期： 2000年第03期

AIM To study the effects of heat exposure and swimming on membranous structure of the small intestinalepithelium and the biochemical indexes.METHODS The distribution of the intra-membranous particles (IMPs) in enteric epithelium of SD rats andthe number of IMPs were analyzed with freeze-etching technique and TxB2, PGFIa, PRL, CORT and totalSA (TSA) were measured with the techniques of biochemistry and radio-immunity.RESULTS Heat exposure markedly affected the distributive pattern of IMPs in intestinal epithelium andmade the numbers of IMPs on the PF and EF faces of cell membrane and nuclear membrane decreased.Swimming exacerbated the above changes. And in the meantime heat exposure resulted in the massivereleasing of the body-hurting substance as TxB2 and reducing of the body-protecting substance as PGFIa.TSA increased obviously. These changes recovered partly after heat exposure, but the number of IMPs onboth PF and EF faces and certain biochemical indexes were still not restored to the levels as in the controlgroup.CONCLUSION Heat exposure and swimming can make the cellular catabolism accelerated and anabolismreduced, then bring about the numbers of IMPs of intestinal epithelium membrane and nuclear membranedecreased, and the distribution was abnormal. TxB2, PGFIa, PRL, CORT and TSA were changedabnormally during heat exposure. And above indexes showed no notable evidence of recovery after stoppingheat exposure 4 hours-24 hours; the delayed injury was obviously presented.

作者： 刊期： 2000年第03期

AIM To investigate the effects of sinusoidal endothelial cell (SEC) conditioned medium on the expression ofconnective tissue growth factor (CTGF) in rat hepatic stellate cells (HSC).METHODS By in situ collagenase perfusion and two-step Percoll gradient centrifugation, SECs wereisolated and cultured from normally and CCl4-treated Wistar rats, and the SEC conditioned media werecollected. HSCs were prepared from Wistar rats by in situ perfusion and single-step Nycodenz gradient, andwere cultured with SEC conditioned media. Expression of CTGF in HSC was assessed using reversetranscription-polymerase chain reaction (RT-PCR).RESULTS Expression of CTGF was not found in freshly isolated HSC and in primary culture of HSC onday 4 with SEC conditioned media from normal rats, but was present in primary culture of HSC on day 4 withSEC conditioned media from CCl4-induced liver fibrosis rats. Expression of CTGF was observed in culture-activated HSCs, and the effect of SEC conditioned media from CCl4-induced liver fibrosis rats on theexpression of CTGF gene in activated HSCs was not significant.CONCLUSION Expression of CTGF might be relative to the activation of HSC and the liver fibrogenesis,and damaged SECs play a very important role in the early stage of activation of HSC.

作者： 刊期： 2000年第03期

AIM In order to provide the TCM therapeutic basis for MODS in clinical critical patients, the role of shockdecoction in anti-bacterial translocation from the gut was tested in rats.METHODS Based on the pathophysiology of MODS following bacterial translocation from the gut causedby severe injuries such as burn, shock, hemorrhagic shock model that induced obvious bacterial translocationwas established and used to determine whether shock decoction, that is composed of modified WenpiDecoction, reduces bacterial translocation. Bacterial culture for mesenteric lymph nodes, liver and spleen ofrats in shock, treatment and control groups was used to calculate the incidence of bacterial translocation.RESULTS The incidence of intestinal bacteria translocating to mesenteric lymph nodes, liver and spleenwas lower in the shocked rats infused via gastrogavage with shock decoction (3/ 15) than that in thenoninfused shocked rats (11 / 13), (P = 0.0009, < 0.01 ). The incidence of intestinal bacteria translocationof rats in shock and control groups were distinctly different (P = 0.0017, <0.01). The amounts and speciesof intestinal flora between infused and noninfused shocked rats were not different statistically (P=0.101,P>0.05). Histological examination showed that intestinal mucosa edema was severer in the shocked ratsthan in the shocked rats with gastrogavage.CONCLUSION Shock beverage could inhibit the shock-induced enterogenous bacterial translocation in ratsprobably by its protective role in intestinal mucosa structure; and has no effect on the growth of intestinalbacteria.

作者： 刊期： 2000年第03期

The polyamines [putrescine (PU), spermidine (SPD) and spermine (SPM)] are ubiquitous polycationiccompounds found in all prokaryotic and eukaryotic cells, are essentially involved in a variety of regulatorysteps during normal, adaptive, and malignant cell proliferation. Nearly four decades investigation about thepolyamines contributed to the synthesis and decomposition of polyamines and the active and passive enzymeswhich regulate them at different levels. This review focuses on the sources and homeostasis of intracellularpolyamines, the transport and role of the polyamines in the growth of the gastrointestinal mucosa and theirpossible mechanism. We tried to point out the gaps remaining in the story and give a working hypothesis forthe role of polyamines in gastrointestinal mucosal growth. We propose in the hypothesis that polyamine is a“key”to unlock the “door”of cell proliferation. How many “doors” between the “polyamine key” and the“real start” of proliferation? The polyamine might be the only key for cell proliferation. Another possibilityis that polyamine is the first key and its “unlocking-effect” resulting in getting another key for the next doorin the proliferation chain, for example, proto-oncogenes. To decide whether polyamine is an intermediatestep or just only one step of cell proliferation, the possible way is to keep polyamine to be a stimulus and finda way to deprive the function of proto-oncogene protein (or other possible gene expression product) to checkthe effect on the cell proliferation. Another important question is how polyamine can trigger the synthesis ofDNA in virtual. Arabinose operon model may give us some ideas to investigate about that. And furthermore,it is necessary to pay attention to the relationship between polyamine and other cell proliferation regulator,like growth factor, chalone, cAMP, cGMP, etc. Further studies are needed to investigate the mechanism ofpolyamine acted on the gastrointestinal mucosal growth.

作者： 刊期： 2000年第03期

AIM To explore gallbladder circadian rhythm (GCR) and the cholagogic action of Yin Chen Hao Ta(YCHT).METHODS Ultrasonography of rabbit gallbladder at 17:00 to 19:00, 23:00 to 01:00, 05:00 to 07:00 m11:00 to 13:00 showed its maximum area (MA), dilatation rate (GDR) and systole rate. Its movemecircadian rhythm (MCR) and the effect of YCHT on gallbladder and the relationship with time weobserved and evaluated.RESULTS The results showed that gallbladder area changed with time, which varied from 11:00 to 13:1>23:00 to 01:00 and 05:00 to 07:00> 17:00 to 19:00 (P<0.01, F=9.13 vs. control by analysisvariance). The cholagogic action at 23:00 to 01:00 and 17:00 to 19:00 was better than that at 11:00 to 13:and 05:00 to 07:00.CONCLUSION The gallbladder movement action (GMA) showed markedly circadian rhythm. Tcholagogic action of YCHT at 23:00 to 01:00 and 17:00 to 19:00 is better.

作者： 刊期： 2000年第03期

作者： 刊期： 2000年第03期

AIM To review the evolution of gastrointestinal (GI) imageology in China over the past 50 years.METHODS The evolution of GI imageological equipment and techniques, published original articles of GIimageology in the Chinese Journal of Radiology, books of GI imageology in China, academic researcheswhich won the academic award of scientific and technological progress at the ministrial and national levelwere reviewed.RESULTS Within 50 years of GI imageology evolution, equipment of GI imageology were developed from200mA X-rays apparatus in the 50s to digital X-rays in the 90s. Technique of GI imaging was developed fromgeneral radiography in the 50s to digital radiography (DR), CT and MR virtual endoscopy of GI in the 90s.About 211 original articles were published in the Chinese Journal of Radiology on the GI imageology.Radiography and single contrast examination of disease were mainly described in the 50s and CT and MR andDR and interventional radiology in the 90s. Twelve books about GI imageology were published within the 50years, ranging from atlas of X-ray examination and diagnosis of GI by Chen Zhen-Lin to atlas of imagingdiagnosis of alimentary tract disease by Xie Jin-Xia. Three academic prizes of scientific and technologicalprogress were awarded by the Ministry of Health and the nation. The study of double contrast barium sulfateof Hua-Shan 2000 by Chen Gen-Fang et al acquired class 3 award of national invention in the 70s, andexperimental study and applications of double contrast radiography by Shang Ke-Zhong et al won class 3award of the Ministry of Health.CONCLUSION In keeping abreast with the development of world GI imageology, great achievements havebeen made in the study and development in GI imageology in China with its own features.

作者： 刊期： 2000年第03期

AIM To search for a simple and safe method to avoid reoperation, reduce complications and mortality,shorten hospital stay and lower the medical cost.METHODS Based on the characteristic of pathology and anatomy of biliary fistula and pancreatic fistula,modified endoscopic nasobiliary drainage or endoscopic nasopancreas drainage with negative pressure wereused to drain the bile and pancreatic juice to the duodenum and in vitro to facilitate fistulous tract close.RESULTS In seven patients with biliary fistulas with conservative treatment who were not yet recoveredafter 6 - 110 days, the leakage was blocked after 6 - 17 days treatment, and in 6 patients with pancreaticfistulas with conservative treatment who were not recovered after 90 - 720 days, the leakage was blockedafter treatment for 12- 28 days.CONCLUSION The advantages of this modefied method are: retain the function of the Oddi sphincter; the anatomy of the pancreatic duct and bile duct and the position of fistulas can be seen clearly withcontrast examination; the drainage effect was defieate, safe and with less complications; the leakageblock can be promoted with the drainage of negative pressure; and hospital stay is shortened and medicalcost is reduced.

作者： 刊期： 2000年第03期

AIM To study the nosocomial infection in the patients with liver diseases and its risk factors.METHODS A prospective survey of nosocomial infection in 848 patients with various liver diseases wascarried out in our hospital for a 24-month period.RESULTS Incidence of nosocomial infection in patients with liver diseases was 9.20%, nosocomialinfection rate in severe hepatitis was significantly higherthan in mild and moderate liver diseases. Infectionof respiratory tract accounted for 44.33%. Infection rate in abdominal cavity, intestinal tract, gallbladderand bile ducts, oral region, and other regions was 15.46%, 12.37%, 8.25%, 7.22% and 12.37%,respectively.CONCLUSION The factors related to nosocomial infection were the severity of liver diseases, cellularimmunological condition, Co-infection of hepatitis virus, severe accompanying diseases, improper medicalmanipulations and use of broad-spectrum antibiotics. Nosocomial infection obviously affects the prognosis ofliver diseases.

作者： 刊期： 2000年第03期

AIM Autoimmunity has been emphasized in the pathogenesis of ulcerative colitis (UC). We reported thattropomyosin (TM) or TM related protein is a putative autoantigen in UC. In human fibroblast, at least 8isoforms of TM have been identified with molecular weight range from 30kD to 40kD, depending upon theisoforms, and human TM isoforms (hTM5) has been found the main isoform in human intestinal epithelialcells. In this study, hTM5 was used as a putative auto-antigen for the humoral and T cell immune responses inpatients with UC, Crohn＇s disease (CD) and healthy subjects (HS) as controls.METHODS Anti-bTM antibody was examined by enzyme-linked immunosorbent assay using human sera(UC 59, CD 28, HS 26) against hTM isoforms. The IFN-γ production by peripheral blood T cells followingstimulation by recombinant hTM5 was analyzed by ELISPOT assay.RESULTS Anti-hTM5 antibody (IgG1) was detected in 15/59 (25.4％) patients with UC, 3/28 (10.γ％)with CD, and 3/26 (11.5％) of HS. The OD value in UC was significantly higher than in CD and HS groups(P ＜ 0.05; P ＜ 0.01 respectively). Western blot analysis demonstrated immunoreactivity against hTM5 inseveral UC sera. ELISPOT assay demonstrated that IFN-γ production is significantly higher in UC (7/18),39.0％), compared with CD (0/8, 0％) and HS (0/7, 0％), (P＜0.05).CONCLUSION A significantly higher immune response to hTM5 was present in UC compared to CD andHS. Further studies of the hTM5/peptides may provide immuno-biochemical mechanism of autoimmuneprocess in UC.

作者： 刊期： 2000年第03期

AIM To study the protective effects of Weitongling decoction (WTL) on gastric mucosa.METHODS Rats with gastric lesion induced by dehydrated alcohol were used to observe the gastric mucosalblood flow (GMBF), rats with spleen deficiency syndrome induced by reserpine were applied to investigatethe D-xylose absorption rate, the Alcian blue binding properties of gastric wall, the gastric acid secretion andthe activity of pepsin.RESULTS Remarkable increases in GMBF (19.5±3.5 mL/min, 20.4±3.3 mL/min respectively in largedose group and small dose group, P<0.01), in Alcian blue binding properties of gastric wall (2.497 mg±0.138 mg, 2.223 ug±0.186 mg respectively in large dose group and small dose group, P<0.05) and in D-xylose absorption rate (1.287±0.043, 1.294±0.019 respectively in large dose group and small dose group,P<0.05) were found after administrations of WTL, while no significant alteration in gastric secretion wasshown and in vitro WTL did not neutralize gastric acid.CONCLUSION WTL can improve the Spleen deficiency syndrome, strengthen the gastric mucosal barrier,and thus protect gastric mucosa against injury agents.

作者： 刊期： 2000年第03期

AIM To investigate DNA methylation status in gastric cancer and its relationship with folate metabolism.METHODS Serum before operation, the gastric mucosa from the lesion, and the surrounding area inpatients with gastric cancer and the remote normal-appearing mucosa of the resected stomach were collectedrespectively. The serum folate, mucosal tissue folate, S-adenosylmethionine ( SAM ), S-adenosylhomocysteine (SAH), and the DNA methylation levels were determined.RESULTS The tissue folate was significantly lower than that in ulcers, especially in the surrounding andnormal mucosa (0.38±0.13, 0.50±0.17 vs 0.53±0.50, 0.79±0.82ng/mg protein, P < 0.01), and itdecreased gradually in the lesion areas. The DNA methylation status showed similar decreasing trend incancers compared with the methylation increasing trend in ulcers. The SAM level ascended in the lesion areaswith a higher. concentration in cancer mueosa (63.5±43.0 vs 25.9±11.9nmol/g tissue, P < 0.01 ). Theaccumulation of SAH in the surrounding and normal mucosa of cancers was observed (17.3±24.6, 15.5±8.6vs 14.6±4.2, 10.0±1.9nmol/g tissue, P < 0.05 - 0.01). There were significantly negative correlationsbetween tissue folate and the SAM and SAH levels in the three areas.CONCLUSION Patients with gastric cancer have the regional folate deficiency in the stomach mucosa,although the serum folate level remains normal. This disturbs the local SAM and SAH metabolism withaccumulation of SAH and DNA hypomethylation which has been known as an important molecularmechanism for carcinogenesis. Folic acid can modulate DNA methylation status by its effect in one-carbongroup metabolism and thus affect the process of the carcinogenesis. Therefore, this may be an access for theprevention of gastric cancer.

作者： 刊期： 2000年第03期

AIM To compare the effects of intravenous route and peritoneal route on liver targeted uptake andexpression of plasmid delivered by glyco-poly-L-lysine (G-PLL).METHODS The plasmid pTM/MMP-1 which could be expressed in eukaryotic cells was bound to thegalactose-terminal glyco-poly-L-lysine (G-PLL), and then was transferred into Wistar rats by intravenousand intraperitoneal injection respectively. Afterwards the expression and distribution of the plasmid wereobserved at different time points by in situ hybridization and immunohistochemistry.RESULTS The plasmid could be expressed obviously in 24 hours after being transferred in vivo by bothintravenous and intraperitoneal route. One week later the expression began to decrease, and still could beovserved three weeks later. Although both the intravenous and intraperitoneal route could deliver theplasmid to liver targetly, the effect of the former was better as compared with that of the latter.CONCLUSION Intravenous route was better for liver targeted uptake and expression of G-PLL-boundplasmid than peritoneal route.

作者： 刊期： 2000年第03期