AIM To observe the effect of herbs-partition moxibustion on IL-1β and TNF-c in UC rats.METHODS The animal models were created by immunological method. They were divided into 5 groups atrandom, after treated by different methods, IL-1β and TNF-α in colon tissue of UC rats were detected withimmunologic technique.RESULTS In control group, there was a little or no IL-1β positive cell in colon mucosa. Compared withthat in rats of control group, the number of IL-1 positive cell in model group was much larger, and IL-1βcells with brown granules were mainly expressed in cytoplasm of macrophage in lamina propria of colon.Compared with model group, IL-1β positive cells in mild moxibustion group markedly decreased (P < 0.05),and those in electro-acupuncture group and herbs-partition moxibustion group decreased even more markedly(P < 0.01). The difference between the last two groups is evident (P < 0.05). TNF-α positive cells are not or seldomly found in UC rats, but in model group, these cells increasedevidently, which were mainly the macrophages in lamina propria of colon. Compared with those in modelgroup, the positive cells decreased markedly in electro-acupuncture group (P<0.05), and decreased moremarkedly in mild moxibustion group and in herbs-partition moxibustion group (P<0.01). There werestatistically significant differences between herbs-partition moxibustion group and electro-acupuncture group(P<0.05).CONCLUSION The mechanism of acupuncture and moxibustion may be that inhibited macrophageactivation, reduced expression of IL-1β and TNF-a and thereby blocking their further activation and thencontrolled, the initiated inflammation and its immunity cascade reaction and resulted in restoring the normalimmunity function and benefited in healing of ulcer.

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 To study the relationship among typing of Traditional Chinese Medicine (TCM) and Helicobacterpylori infection, expression of oncogene and tumor suppresser genes in gastric cancer and precancerouslessions.METHODS According to TCM typing, 120 patients with chronic superficial gastritis, intestinal metaplasia,atypical hyperplasia and gastric cancer were divided into 4 groups: 21 patients with coexistence of cold andheat syndrome (group R), 22 patients with in coordination between the liver and the spleen (group U), 29patients with deficiency of the spleen-yin (group I) and 48 patients with insufficiency of the spleen-yang(group H). Protein expression of c-myc, p21 and p53 were detected immunohistochemically, and Hp wereconfirmed by modified Giemsa method.RESULTS The Hp infection of the group H was significantly higher (72.9%) than that of group R(38.1%, P<0.01) and group U (40.9%, P<0.01). Expression of c-myc, p21 and p53 were significantlyrelated to Hp infection and severity of gastric mucosa lesions (group H>group I>group U>group R).CONCLUSION Hp infection, expression of oncogene and tumor suppresser genes were related to TCMtyping. These parameters were helpful in identification of symptoms and signs and TCM differentiationdiagnosis.

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

AIM To clarify the surgical strategy for patients with stage Ⅳa primary hepatic carcinoma (PHC).METHODS Twenty-seven patients with stage Ⅳ a PHC were retrospectively studied in 1989 - 1998,including resected group (19 cases) whose all tumor nodes were resected and cytoreductive group (8 cases)whose most tumor nodules were resected and remnant nodules treated by ethanol injection. B-ultrosoundshould be used intraoperation in order to prevent from missing any tumor nodule. All the tumor nodules inthe liver should be removed, and residual nodules should be treated by ethanol injection during operation ifall the tumor nodules can not be removed. Multidisciphinary therapies were undertaken perioperatively.RESULTS The 1-, 2- and 3-year survival rates were 71.4%, 55.6% and 7.7% respectively. The 1-, 2- and3-year survival rates of the resected and cytoreductive groups were 73.3%, 53.3%, 10.0% and 66.7%,50.0%, 0% (P>0.05) respectively. The rate of complications was 22.0%, without operative and in-hospital mortality.CONCLUSION The surgical treatment included resected or cytoreductive operation plus supplementarytherapy considered to be both useful and the first choise for stage Ⅳa PHC.

作者： 刊期： 2000年第03期

AIM To study the relationship between nitric oxide (NO), nitric oxide synthase (NOS) and humanhepatocellular carcinoma (HCC).METHODS Plsama NO2-/NO3- was measured by Griess reaction in 122 patients with chronic hepatitis(CH) and compensated liver cirrhosis (LC), among which 62 patients were complicated with HCC(CH = 28, LC = 34), and the rest 60 patients were not (CH = 29, LC = 31). Thirty healthy persons served asnormal controls (NC). There were no prominent differences among the groups in sex, age and the ratio ofCH to LC. The expression of inducible nitric oxide synthase (iNOS) in HCC (n = 40), CH (n = 30) and LC(n = 30) samples obtained from liver biopsy or operation was compared with that in normal liver tissues byusing immunohistochemistry. Ten normal liver tissue samples obtained from liver operation served as normalcontrols. The samples were fixed in formalin and embeded in paraffin. Anti-iNOS antibody (Santacruzcompany) was served as antibody-Ⅰ in immunohistochemical assay of iNOS in tissue.RESULTS Plasma NO2-/NO3- level in normal was 11.5 μmol/L±4.2μmol/L. The plasma level ofNO2 /NO3- in CH (58.6±17.4 μmol/L) and LC (38.7±10.6μmol/L) accompanied with HCC wasnotably higher than in those patients without HCC (CH: 24.8±9.4 μmol/L; LC: 22.3±8.7μmol/L,t=2.901, 2.756, P<0.01). Plasma NO2-/NO3- level in HCC accompanied with CH was significantlyhigher than in those accompanied with LC ( t = 2.216, P<0.05). Positive rate of iNOS in HCC, CH and LCwas 95%, 93% and 57% respectively. iNOS was not expressed in normal liver tissues. The expression level ofiNOS in HCC (χ2=17.4, P<0.001) and CH (χ2=11.64, P<0.025) was much higher than in LC.CONCLUSION Plasma NO2 / NO3- level significantly increased in patients with HCC and theimmunohistochemical staining of iNOS was positive. This suggests that the liver secrets NO in the higherlevel may participate in the carcinogenesis and progression of HCC.

作者： 刊期： 2000年第03期

AIM To study the liver-protecting and fibrosis-resisting effect of Ganxianning (GXN) and its mechanism.METHODS Model of carbon tetrachloride hepatic injury fibrosis rats was reproduced. In the experimentthere were six groups, the treatment groups with GXN's large, moderate and small dose (GXNb, GXNm andGXNs), the treatment group with colchicine, the blank model group and normal control group. The course of treatment was 30 days, then the rats were killed with their blood and liver tested.RESULTS In treatment groups, alanine aminotransferase (ALT) was lower than that in the model group(P<0.01), and albumin (Alb) higher than that in the model (P<0.01). Hydroxylproline (Hyp) and redcell membrane C3B receptor garland in GXNb's and GXNm's groups were lower and circulation complex(CIC) was slightly higher. Fibrinogen (Fb) in both colchicine and model groups was higher than that innormal group and the difference was significant (P<0.05, P<0.01). Compared with model group, acid-α-naphthyl acetate esterase (ANAE) increased in GXNb's and GXNm's groups (P<0.05, P<0.01). Underlight and electron microscopes, level of hepatic fibrosis of GXN groups was much lower than that of themodel group, P<0.01, and their difference was very significant. In GXNms group, liver cell was normal onthe whole and its chromatin was more than the model group and its nucleolus was evident.CONCLUSION GXN has rather good functions of protecting liver and resisting fibrosis, and thesefunctions are related to the increase of ANAE and C3b, decrease of CIC and Fb. and improvement of bodyimmunity function.

作者： 刊期： 2000年第03期

AIM To study the safety and the traumatic degree of D4 approach by retrospective analysis of the para-operative data from the para-aortic lymph nodes excision in comparison with those from standard radicalresection in advanced gastric cancer (AGC).METHODS Several para-operative data including the resectability, the mortality, the complicatedmorbidity, the amount of transfused blood, and the hospitalized days relating to the operation were analyzedstatistically between D4(n = 30) and D2 lymph nodes excision (n = 34) groups. The data expressed as means±SD was analyzed statistically by Student t test. Percentage of the data was analyzed by x2 test statistically.It was taken as significant difference if P value was less than 0.05.RESULTS The percentage of palliated resection in D4 group was significantly lower than that in D2 group(16.67% vs 47.06%, P<0.05). This D4 radical resection would indeed prolong the drainage time (7.35±0.98 days vs 14.78±2.16 days, P < 0.01). The amount of transfused blood during operation (774.32±112.09mL) and the operative consuming time in D4 group (7.14±0.39h) increased significantly toocompared with those in D2 group (538.67±59.87mL, P < 0.05; 4.12±0.18h, P < 0.05), suggesting that thedraumatic degree of D4 operation was severer than that of D2 operation. But the mortality, the morbidity ofcomplication and the hospitalized time after D4 operation did not increase significantly, indicating that D4lymph nodes excision as a choice of the surgical treatment of AGC was safe and feasible.CONCLUSION D4 lymph nodes excision for AGC is safe, reasonable and feasible.

作者： 刊期： 2000年第03期

AIM To understand the characteristics and investigate the diagnosis, treatment of intrahepatic biliarypapillomatosis.METHODS Two cases were confirmed operatively and pathologically, and the literature reviewed.RESULTS The causes of the disease are not clear, but the long-term irritations of stone and inflammationmay be considered. Despite being histologically benign, it has low-grade malignant potential, characterizedby multiple and diffusive manner, and has high rates of recurrence and malignant transformation. Jaundiceand cholangitis are the dominant manifestations. Imaging modalities are beneficial in it's diagnosis, and thescanning of choledochoscopy is of great value.CONCLUSION The management of the disease is difficult. Curative resection is the primary therapy.Curettage and drainage may lead to high recurrence. The chemotherapy and lasertherapy represent othermodalities in the treatment. Biliary papillomatosis may become a new indication for liver transplantation.

作者： 刊期： 2000年第03期

AIM To observe the therapeutic effect of weile jiaonang (WLJN) for peptic ulcer (PU) and its toxicity toanimals, and to find out the nontoxic Chinese medicines in replacing those chemical medicines with sideeffect.METHODS Five hundred and forty patients with PU were divided into three groups, therapeutic group byWLJN, control group taking famotidine and combined group with WLJN and famotidine. One hundred andeighty patients in each group were studied. The diagnosis of 540 patients with PU is in accordance with thebasis provided by the National Scientific Congress of Digestive System Disease convened in Hangzhou, 1978.The study followed the criterion provided by this Congress.RESULTS Total effective rate in therapeutic group was 93.3%, and 93.3% in control group. Combinedgroup achieved a total effective rate of 100%. For all three groups, there was no significant differencestatistically, but the control group appeared obvious side effects. The result of acute toxic experiments onwhite mice showed that there no death and toxic side effect even the highest dosage was given, which wasequivalant to 120 times to the dosage of patients. The result of chronic toxic experiment showed there was noobvious pathologic change in three dosed groups. The tails of mice in dosed groups were more smooth delicateand cleaner than those in control group.CONCLUSION Through observation in clinic and exprimental animal, it is proved that weilejiaonang isparticularly effective and safe Chinese patent drug against PU.

作者： 刊期： 2000年第03期

AIM To study the antitumor effect of Zhenhuang Injection (ZHI) on the mice bearing transplanted tumor.METHODS The solid type of H22 transplantation hepotocarcinoma, ascitic type of S-180 sarcoma and ascitictype of LⅡ malignant lymphoma of mice were treated at three doses (crude drug 1.25g/kg, 2.5g/kg,5.0 g/kg of body weight) of ZH1. The solid tumor group and ascitic tumor group were injected intravenously.and intraperitoneally. The experiment was repeated three times.RESULTS The tumor-inhibition rate of H22 hepatocarcinoma in moderate and large doses was 30.23% -35.67% (P<0.01) and 46.36%-54.07% (P<0.01) respectively; the survival rate of ascitic type of S-180sarcoma and ascitic type of LⅡ malignant lymphoma in large dose group was 77.23% - 86.91% (P<0.01)and 75.42%-79.04% (P<0.01), respectively.CONCLUSION ZHI has a certain tumor-inhibiting effect. Under the tolerant dose, the effect improveswith the increase of dose.

作者： 刊期： 2000年第03期

Management of inflammatory bowel disease includes not only drug, endoscopic and surgical therapy but alsopsychosocial support, dietary and specific nutritional measures: a multidisciplinary medical, surgical, nursingand dietetic approach is essential for all patients, particularly those with complex or refractory disease. Inthis paper, current treatment of acute severe ulcerative colitis and steroid-refractory or -dependent Crohn'sdisease is reviewed. Adjunctive intravenous cyclosporin is an alternative to urgent colectomy in steroid-refractory patients with acute severe ulcerative colitis, while the place of intravenous heparin for thisindication awaits clarification. Azathioprine or 6-mercaptopurine are useful options in chronically active,steroid-refractory or -dependent Crohn's disease, but may take up to 4 months to work. Methotrexate is amore recent immunomodulatory alternative. Of new therapies selectively aimed at specific pathophysiologicaltargets, the first to reach clinical application is anti-TNF-alpha antibody (infliximab) for refractory Crohn'sdisease: its benefits are promising, but experience with it is limited to date, its cost is high and there areuncertainties about long-term safety. In view of the increasing variety and complexity of management optionsin inflammatory bowel disease, whether apparently responsive or difficult to treat, patients must participatein decisions about which therapies they are to be given.

作者： 刊期： 2000年第03期

AIM To study the relationship between the lipid peroxide (LPO) and superoxide dismutase (SOD) and thepathogenesis of gastrointestinal cancers.METHODS We investigated the SOD activity and LPO levels in blood and mucosa of patients withesophageal (EC), gastric (GC) and colorectal cancer (CC), gastric ulcer (GU) and compared with normalesophagus (NE), stomach (NS) and colon (NC). respectively, 287 patients who underwent endoscopy werestudied. SOD activity of the tissue and blood was determined using SUN's adrenaline auto oxidation method.LPO levels were determined according to YU's method.RESULTS The SOD activity and LPO level in blood and mucosa are shown in the Table 1 (x±Sx).Table 1 SOD and LPO in blood and tissues of patients with gastrointestinal cancers SOD(U／mg protein) LPO(U／mg)Groups n Tissue blood Tissue BloodNormal stomachGastric ulcerGastric cancerNormal esophagusEsophageal cancerNormal colonColon cancer 60 42 43 32 52 28 30 1.90±0.18 0.64±0.40a 0.37±0.24a 1.17±0.70 0.39±0.30a 0.81±0.36 0.31±0.17b 33.70±1.73 25.50±0.67b 27.86±1.02b 30.80±3.78 28.23±10.63 20.97±4.77 19.35±7.32 0.01±0.004 0.05±0.010b 0.06±0.021b 0.014±0.005 0.061±0.033b 0.012±0.003 0.069±0.015b 0.83±0.01 0.11±0.02 0.12±0.03 0.08±0.02 0.11±0.02 0.08±0.03 0.11±0.02aP<0.001, bp<0.01 vs corresponding normal controls, respectively.CONCLUSION SOD activity of the tissue is significantly decreased in EC. GC and CC. LPO levels weresignificantly higher than those of corresponding normal tissue. These results suggest that mucosal SOD andLPO levels are closely related to the pathogenesis of the gastrointestinal cancers.

作者： 刊期： 2000年第03期

AIM The hepatic content of collagens (type I, Ⅲ and Ⅶ) and laminin (LN) in rat model of experimentalliver fibrosis was observed to find out their roles in the pathogenesis of liver fibrosis.METHODS The experimental rat model was established by immunological injury induced by injectinghuman albumin. Histopathological and immunohistochemical methods were used to measure the hepaticcontent of collagens and laminin in the fibrotic rat livers.RESULTS The hepatic contents of collagens (type I, Ⅲ, Ⅶ) and LN in the fibrotic rat livers weresignificantly increased as compared with those in the control group, and they were found to be mainlylocalized in the portal space, central veins and fibrous septa. Electron microscopic study showed that pro-collagens were present around the “activated” hepatic stellate cells (HSC) and the hepatocytes atrophied.CONCLUSION Pathological deposition of collagens (type Ⅰ, Ⅲ and Ⅶ ) and laminin was the fundamentallesion of liver fibrosis. HSC may be the major cellular source of collagens (type Ⅰ, Ⅲ and Ⅶ) and laminin inthe liver tissue.

作者： 刊期： 2000年第03期

AIM To establish an ideal model of gastric precancerous lesions for rats.METHODS Fifty rats were fed with carcinogen MNNG for 35 wk and heat-plaste at 60C for 20 wk, thepathological changes were observed. Data in the groups were analyzed by Ridit test.RESULTS The occurrence rate of dysplasia in rats due to MNNG and heat-damage was 65%, which wasobviously higher than that due to MNNG only. The differences between the two groups were significant.CONCLUSION The animal model made by MNNG and heat-damage was an ideal one which could be usedto investigate the pathologic mechanism of gastric precancerous lesions.

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

AIM To determine the role of Helicobacter pylori in altering gastric mucin synthesis and define how thprocess relates to H. pylori-related diseases.METHODS Analyses of human gastric tissues using immunohistochemistry and in situ hybridizatiodocument the role of H. pylori in altering the composition and distribution of gastric mucins.RESULTS These data indicate a decrease in the product of the MUC5 (MUC5AC) gene and aberraexpression of MUC6 in the surface epithelium of H. pylori-infected patients. A normal pattern was restorby H. pylori eradication. Inhibition of mucin synthesis including MUC5AC and MUCl mucins by H. pvlohas been established in vitro using biochemical and Western blot analyses. This effect is not due to inhibitiof glycosylation, but results from inhibition of synthesis of mucin core structures. In vitro experiments usiinhibitors of mucin synthesis indicate that cell surface mucins decrease adhesion of H. pylori to gastepithelial cells.CONCLUSION Inhibition of mucin synthesis by H. pylori in vivo can disrupt the protective mucous layand facilitate bacterial adhesion, which may lead to increased inflammation in thc gastric epithelium.

作者： 刊期： 2000年第03期

AIM To determine whether MAP can be detected in archival paraffin embedded full thickness samples ofintestinal tissue from patients in China with Crohn's disease (CD), ulcerative colitis (UC), and in controlsubjects (NIBD) having surgery for bowel cancer.METHODS Optimized procedures for the removal of paraffin, recovery of tissue and access to MAP DNA,followed by MAP-specific nested IS900 PCR. Confirmation of specific amplification by Southern blotting andDNA sequencing.RESULTS IS900 PCR positive tests identified MAP in 9 (69%) of 13 CD, 1 of 3 UC and 2 (14%) of 14NIBD in the presence of correctly reporting positive and negative sample and reagent control reactions. DNAsequence analysis of the 298bp IS900 PCR amplification product from MAP in 2 Chinese CD patientsdemonstrated 99% homology with the GenBank IS900 sequence accession number X16293.CONCLUSION Although larger numbers of Chinese samples need to be studied, these initial results areconsistent with an exposure of human populations in China to MAP, and an involvement of this pathogen inchronic inflammation of the intestine of the Crohn's disease type. The results are in agreement with similarpositive studies reported from China, from Western Europe and elsewhere.

作者： 刊期： 2000年第03期

AIM To observe the effect of repair of intrathoracic esophageal perforation with gastric seromuscularpatch.METHODS Twelve patients with intrathoracic esophageal perforation, none of whom were associated withcarcinoma, underwent primary repair with a gastric seromuscular patch and omental pedicle flap between1996 and 1999. Four perforations were iatrogenic and 8 were spontaneous. The interval from perforation tooperation was less than 12 hours in 4 patients, 12 to 24 hours in 3, and more than 24 hours in 5. The principleof repair included: ① To expose health mucosa and submucosa for the primary repair. The leading edge ofthe mucosa is grasped and the adjacent esophageal muscle is mobilized away from the submucosa until there isa 3 to 7 mm circumferential rim of normal submucosa. ② The gastric seromucular patch and omental pedicleflap require continuity of the right gastric piple, omental vessels and the rami. ③ To assure the blood flow ofthe esophagus when the necrotic mediastinal and esophageal tissue are debrided, the normal esophageal tissueoften extends well beyond the 3/4 diameter of the esophagus. ④ The mediastinal pleural is not closed inorder to drain. The catchers nasogastric tube decompression of the stomach is continued until thepostoperative ileus resolves.RESULTS Eleven of the 12 patients underwent primary repair, one patient had leak at the site of repairand died.CONCLUSION Meticulous repair of an intrathoracic esophageal perforation using a gastric seromuscularpatch is the preferred approach regardless of the duration of the injury.

作者： 刊期： 2000年第03期

AIM To isolate, done and sequence gcys-18 overexpressed in gastric carcinoma.METHODS gcys-18 was isolated from differential display gel between GC7901 and GES-1 by mRNAdifferential display PCR, and was cloned into T vector. As a probe gcys-18 was hybridized to total RNAs ofGC7901 and GES-l, and was sequenced. Its sequence was screened against GeneBank. According to theobtained sequence, a pair of primers were designed and used to examine 26 specimens of gastric cancers andcorresponding paracancerous tissues by quantitative reverse transcriptase PCR.RESULTS gcys-18 was isolated and cloned, and confirmed to be expressed higher in GC7901 than in GES-1 by RNA dot blot; gcys-18 was 416bp, and partly similar to HEK5, and its accepted number in GeneBankwas AF071057; 18 out of 26 specimens of gastric cancers and 2 out of corresponding paracancerous tissueswere examined by RT-PCR.CONCLUSION gcys-18 may be an important expressed sequence tag in gastric cancer, and takes part inprogression of gastric carcinoma.

作者： 刊期： 2000年第03期