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作者 本刊编辑部 《语言教育》 2002年第2期2-2,共1页
1. 来稿一般以1000-3000字为宜。例句要注明出处。 2.稿件须保证科学性、实用性。体例可参考本刊已发表的文章。内容重复、缺乏依据、层次不清, 字迹模糊的稿件恕不采用。
关键词 方格稿纸 电脑打印 文原 双断 实肿 试题解析 文中
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Experimental Study on Apoptosis in Leukemia Cells Induced by Econazole
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作者 刘芳 邹萍 +2 位作者 张敏 吴耀辉 肖娟 《The Chinese-German Journal of Clinical Oncology》 CAS 2005年第2期102-104,共3页
To investigate apoptosis in mouse leukemia cell (WEHI-3) induced by Econazoleand its mechanism. Methods: Apoptosis induced by Econazole was examined by flow cytometry. Freecalcium ([Ca^(2+])i) was determined by Fura-2... To investigate apoptosis in mouse leukemia cell (WEHI-3) induced by Econazoleand its mechanism. Methods: Apoptosis induced by Econazole was examined by flow cytometry. Freecalcium ([Ca^(2+])i) was determined by Fura-2 fluorescein load technique. The protein was isolatedfrom endoplasmic reticulum of WEHI-3 cells, and then the expression of caspase-12 and caspase-7 wasdetected by Western blot. Results: WEHI-3 cells exhibited typical change of apoptosis when they weretreated by Econazole. [Ca^(2+)]i was significantly higher in Econazole-treated group than incontrol group. The expression of caspase-12 and caspase-7 was increased with the increase ofEconazole concentration. Conclusion: Caspase-12 may play a key role in WEHI-3 apoptosis induced byEconazole. 展开更多
关键词 ECONAZOLE APOPTOSIS [Ca^(2+)]i CASPASE-12
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AN EXPERIMENTAL STUDY OF THE TUMOUR NECROSIS FACTOR LEVELSIN AQUEOUS HUMOR AFTER TRAUMATIC CATARACT AND INTRAOCULAR LENS IMPLANTATION 被引量:2
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作者 周朝晖 何守志 《Chinese Medical Sciences Journal》 CAS CSCD 1999年第1期64-66,共3页
Purpose. This paper studies the tumour necrosis factor (TNF) levels in aqueous humor after traumatic cataract extraction and posterior chamber (PC) intraocular lens (IOL) implantation in rabb... Purpose. This paper studies the tumour necrosis factor (TNF) levels in aqueous humor after traumatic cataract extraction and posterior chamber (PC) intraocular lens (IOL) implantation in rabbits,and discusses the effect of TNF on postoperative anterior ocular inflammation. Methods. Twenty seven pigmented rabbits were divided into three groups: for the first group, the IOL were placed in the capsular bag after traumatic cataract extraction; for the second, the Extracapsular cataract extraction without IOL implantation; and for the third, the control group without surgical intervention. On the 1st, 3rd, 7th and 14th day postoperatively, aqueous humor samples were obtained. A modified double antibodies indirect sandwich ELISA was used to detected for the presence of TNF. The data were studied by means of analysis of variance in SAS software. Result. The TNF level was increased in aqueous humor and reached its maximum on the 1st postoperative days after traumatic cataract extraction and PC IOLs implantation, and the TNF levels are significantly higher (P<0 05) on the 1st, 3rd, 7th and 14th day postoperatively in traumatic cataract extraction and PC IOL implanted group than that in the non surgical intervention group and extracapsular cataract extraction group. Conclusions. The increase of TNF levels had a close relationship with presence of the IOL itself which induces the secretion of TNF. This suggested that TNF as the principal mediators of immunological and inflammatory responses, so that may play critical role in anterior ocular inflammative response after traumatic cataract extraction and IOL implantation. 展开更多
关键词 intraocular lens traumatic cataract extraction tumour necrosis factor (TNF)
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EFFECT OF GLYCYRRHETINIC ACID ON DNA DAMAGE AND UNSCHEDULED DNA SYNTHESIS INDUCED BY BENZO(α)PYRENE 被引量:1
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作者 陈晓光 韩锐 《Chinese Medical Sciences Journal》 CAS CSCD 1995年第1期16-19,共4页
Glyeyrrhetinic acid (GA) is an active component of Glycyrrhiza uraleusis fisch,In this study,GA was found to inhibit ear edema and ornithine decarboxylase (ODC)activity induced by croton oil in mice. GA could also pro... Glyeyrrhetinic acid (GA) is an active component of Glycyrrhiza uraleusis fisch,In this study,GA was found to inhibit ear edema and ornithine decarboxylase (ODC)activity induced by croton oil in mice. GA could also protect rapid DNA damage and decrease the unscheduled DNA synthesis induced by benzo(α)pyrene. The results demonstrate that GA has a potential cancer chemopreventive activity. 展开更多
关键词 glycyrrhetinic acid DNA damage protection unscheduled DNA synthesis
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Clinicopathological study of solid and pseudopapillary tumor of pancreas: Emphasis on magnetic resonance imaging findings 被引量:22
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作者 Chi-Chang Yu Jeng-Hwei Tseng +2 位作者 Chun-Nan Yeh Tsann-Long Hwang Yi-Yin Jan 《World Journal of Gastroenterology》 SCIE CAS CSCD 2007年第12期1811-1815,共5页
AIM: To report the clinicopathological features and magnetic resonance imaging (MRI) findings of solid and pseudopapillary tumor (SPT) of pancreas.METHODS: From 1981 to 2005, 26 surgically treated cases of SPT were re... AIM: To report the clinicopathological features and magnetic resonance imaging (MRI) findings of solid and pseudopapillary tumor (SPT) of pancreas.METHODS: From 1981 to 2005, 26 surgically treated cases of SPT were retrospectively reviewed. MRI findings of the latest 11 consecutive SPT cases were investigated.RESULTS: There were 25 women and one man having SPT (median age: 23 year) with a median tumor size of 7.5 cm. Among them, nine patients developed solid pseudopapillary carcinoma. During the median follow-up period of 66 mo, the 5-year survival rate of the 26 SPT patients was 96.2%. Three MRI features were proposed including Type 1 image, displaying SPT with completely solid part. All SPT patients with type 1 image were detected incidentally. Type 2 image displays of SPT with solid mass hemorrhage and type 3 image with massive hemorrhage. All the eight SPT patients with type 2 and 3 images suffered abdominal pain due to hemorrhage from SPT.CONCLUSION: SPT had a favorable survival rate irrespective of surgical procedures, malignancy, and MRI findings, however, MRI could reliably correlate with its clinicopathological features. 展开更多
关键词 Solid and pseudopapillary tumor PANCREAS Magnetic resonance imaging
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MR diffusion-weighted imaging of rabbit liver VX-2 tumor 被引量:3
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作者 You-HongYuan En-HuaXiao JunXiang Ke-LiTang KeJin Shi-JianYi QiangYin Rong-HuaYan ZhongHe Quan-LiangShang Wei-ZhouHu Su-WenYuan 《World Journal of Gastroenterology》 SCIE CAS CSCD 2005年第20期3070-3074,共5页
AIM: To investigate the implanting method of rabbit liver VX-2 tumor and its MR diffusion-weighted imaging (DWI) characteristics. METHODS: Thirty-five New Zealand rabbits were included in the study. VX-2 tumor was imp... AIM: To investigate the implanting method of rabbit liver VX-2 tumor and its MR diffusion-weighted imaging (DWI) characteristics. METHODS: Thirty-five New Zealand rabbits were included in the study. VX-2 tumor was implanted subcutaneously in 14 rabbits and intrahepatically in 6 for pre-experiments. VX-2 tumor was implanted intrahepatically in 12 rabbits for experiment and three were used as the control group. DWI, T1- and T2-weighted of MRI were performed periodically in 15 rabbits for experiment before and after implantation. The distinction of VX-2 tumors on DWI was assessed by their apparent diffusion coefficient (ADC) values. The statistical significance was calculated by analysis of variance (ANOVA) of the randomized block design using SPSS10.0 software. RESULTS: The successful rate of subcutaneous implantation of VX-2 tumor was 29% (4/14) while that of intrahepatic implantation of it was 33% (2/6) in the preexperiment. The successful rate of intrahepatic implantation of VX-2 tumor in the experiment was 83% (10/12) and 15 tumors grew in 10 successfully implanted rabbits. The DWI signal of VX-2 tumor was high and became lower when the b value increased step by step. The signal of VX-2 tumor on the map of ADC was low. When the b value was 100 or 300 s/mm2, the ADC value of normal group and VX-2 tumor group was respectively 2.57±0.26, 1.73±0.31, 1.87±0.25 and 1.57±0.23 mm2/s. Their distinction was significant (F= 43.26, P<0.01), the tumor ADC value between b values 100 and 300 s/mm2 was significant (Tukey HSP,P<0.05) and the ADC value between VX-2 tumor and normal liver was also significant (Tukey HSP, P<0.01). VX-2 tumor developed quickly and metastasized early to all body, especially to the lung, liver, lymph nodes of mediastinum, etc. CONCLUSION: The DWI signal of rabbit VX-2 tumor has its characteristics on MR DWI and DWI plays an important role in diagnosing and discovering VX-2 tumor. 展开更多
关键词 Magnetic resonance imaging DIFFUSION-WEIGHTED LIVER VX-2 tumor RABBITS
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Bifunctional chimeric SuperCD suicide gene -YCD: YUPRT fusion is highly effective in a rat hepatoma model 被引量:2
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作者 Florian Graepler Marie-Luise Lemken +13 位作者 Wolfgang A Wybranietz Ulrike Schmidt Irina Smirnow Christine D GroB Martin Spiegel Andrea Schenk Schenk Hansj(o|¨)rg Graf Ulrike A Lauer Reinhard Vonthein Michael Gregor Sorin Armeanu Michael Bitzer Ulrich M.Lauer 《World Journal of Gastroenterology》 SCIE CAS CSCD 2005年第44期6910-6919,共10页
AIM: To investigate the effects of catalytically superior gene-directed enzyme prodrug therapy systems on a rat hepatoma model. METHODS: To increase hepatoma cell chemosensitivity for the prodrug 5-fluorocytosine (... AIM: To investigate the effects of catalytically superior gene-directed enzyme prodrug therapy systems on a rat hepatoma model. METHODS: To increase hepatoma cell chemosensitivity for the prodrug 5-fluorocytosine (5-FC), we generated a chimeric bifunctional SuperCD suicide gene, a fusion of the yeast cytosine deaminase (YCD) and the yeast uracil phosphoribosyltransferase (YUPRT) gene. RESULTS: In vitro stably transduced Morris rat hepatoma cells (MH) expressing the bifunctional SuperCD suicide gene (MH SuperCD) showed a clearly marked enhancement in cell killing when incubated with 5-FC as compared with MH cells stably expressing YCD solely (MH YCD) or the cytosine deaminase gene of bacterial origin (MH BCD), respectively. In vivo, MH SuperCD tumors implanted both subcutaneously as well as orthotopically into the livers of syngeneic ACI rats demonstrated significant tumor regressions (P〈0.01) under both high dose as well as low dose systemic 5-FC application, whereas MH tumors without transgene expression (MH naive) showed rapid progression. For the first time, an order of in vivo suicide gene effectiveness (SuperCD〉〉 YCD〉〉BCD〉〉〉negative control) was defined as a result of a direct in vivo comparison of all three suicide genes. CONCLUSION: Bifunctional SuperCD suicide gene expression is highly effective in a rat hepatoma model, thereby significantly improving both the therapeutic index and the efficacy of hepatocellular carcinoma killing by fluorocytosine. 展开更多
关键词 YCD/YUPRT fusion Cytosine deaminase GDEPT Suicide gene therapy Hepatoma therapy
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Avidin chase reduces side effects of radioimmunotherapy in nude mice bearing human colon carcinoma 被引量:1
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作者 Gui-PingLi Yong-XianWang +2 位作者 KaiHuang HuiZhang Chun-FuZhang 《World Journal of Gastroenterology》 SCIE CAS CSCD 2005年第13期1917-1921,共5页
AIM: To evaluate the influence of avidin chase on the side effects of radioimmunotherapy (RIT) in nude mice bearing human colon carcinoma and therapeutic outcome.METHODS: Purified anti-CEA monoclonal antibody (McAb)wa... AIM: To evaluate the influence of avidin chase on the side effects of radioimmunotherapy (RIT) in nude mice bearing human colon carcinoma and therapeutic outcome.METHODS: Purified anti-CEA monoclonal antibody (McAb)was biotinylated with NHS-biotin, and then radiolabeled with 188Re by the direct method. 188Re-labeledbiotinylated anti-CEA McAb (188Re-CEA McAb-Bt) was intravenously injected followed by intravenous injection of avidin after 24 h. SPECT imaging and biodistribution study were performed at 28-48 h after the injection of 188Re-CEA McAb-Bt. Three groups of nude mice subcutaneously grafted with human colon carcinoma were treated 7 d after the graft. Mice in the avidin chase group received intravenous injection of 188Re-CEA McAb-Bt (11.1 MBq/20 μg) followed by intravenous injection of cold avidin (80 μg) after 24 h. Mice in the control group (treated group without avidin chase) only received the injection of 188Re-CEA McAb-Bt (11.1 MBq/20 μg), another control group (non-treated group) only received 0.1 mL normal saline solution. Toxicity was evaluated on the basis of change of body weight and peripheral WBC counts, and therapy effects were determined by variation in tumor volume. Histological analysis of tumors was also performed.RESULTS: Avidin chase markedly accelerated the clearance of 188Re-CEA McAb-Bt from the blood and normal tissues. The tumor uptakes of 188Re-CEA Mc Ab-Bt at 28 h were 5.90 and 6.42% ID/g, respectively, in chase group and in non-chase group, while the tumor-to-background (T/NT) ratios were 3.19 and 0.56, respectively. The tumor uptake was slightly decreased by avidin chase, but the T/NT ratios were increased. In treated groups the growth rate of body weight and the number of WBC decreased after injection of 188Re-CEA McAb-Bt, and the WBC counts recovered earlier in the group with avidin chase than in the group without avidin chase. Compared to the nontreated group, treated groups with and without avidin chase showed significant anti-tumor effects.CONCLUSION: Avidin chase can effectively reduce the side effects of RIT, and improve therapeutic efficacy. 展开更多
关键词 Avidin chase RADIOIMMUNOTHERAPY Side effects Colon cancer Nude mice
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Distress management in cancer patients:Guideline adaption based on CAN-IMPLEMENT 被引量:2
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作者 Liang Fu Yang Yang +7 位作者 Yan Hu Zhenqi Lu Xiaoju Zhang Mingzhu Huang Yuanyuan Li Fuzhong Zhu Yang Wang Zhe Huang 《International Journal of Nursing Sciences》 CSCD 2022年第1期56-62,I0003,I0004,共9页
Objective This study aimed to adapt relevant clinical practice guidelines for distress management in cancer patients based on A Guideline Adaptation and Implementation Planning Resource(CAN-IMPLEMENT),and develop Canc... Objective This study aimed to adapt relevant clinical practice guidelines for distress management in cancer patients based on A Guideline Adaptation and Implementation Planning Resource(CAN-IMPLEMENT),and develop Cancer-related Distress Management Guidelines in the context of the research site.Methods According to CAN-IMPLEMENT,the symptoms of cancer patients in Shanghai were investigated,and a work plan was formulated to adapt cancer-related distress management guidelines.The relevant clinical practice guidelines for distress management in cancer patients were searched,screened and assessed,the contents of the included clinical practice guidelines were screened,extracted and integrated,and the Cancer-related Distress Management Guidelines was developed.After peer review,the Cancer-related Distress Management Guidelines was finally formed.Results The physical symptom distress score was higher than the psychological symptom distress score among cancer patients in Shanghai.Two clinical practice guidelines related to distress management in cancer patients were included after searching,screening,assessment and selection systematically.The domain scores of the draft Cancer-related Distress Management Guidelines on Appraisal of Guidelines for Research and Evaluation II(AGREE II)were 73.75%–87.50%,respectively.The scores of most recommendations on feasibility,appropriateness,meaningfulness and effectiveness were at least 90%.The final guidelines included 13 recommendations.Conclusions The quality of the draft Cancer-related Distress Management Guidelines based on two included guidelines was well-accepted.The final Cancer-related Distress Management Guidelines needs to be further verified in clinical practice for feasibility,suitability and effectiveness. 展开更多
关键词 China Distress management NEOPLASMS Practice guideline as topic Psychological distress
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Experimental Studies of the Therapeutic Effect of Gypsophila Oldhamiana Gypsogenin on Lewis Lung Cancer in Mice 被引量:1
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作者 Guihong Tian Ling Zhou Ying Zhong Wan Xu Hong Bai Lu Liu Shuxiang Cui 《Chinese Journal of Clinical Oncology》 CSCD 2008年第3期206-210,共5页
OBJECTIVE To observe the inhibitory effect of Gypsophila oldhamiana gypsogenin (GOG) on Lewis lung cancer growth,and to investigate the mechanism of its anti-tumor effect. METHODS A mouse model bearing Lewis lung canc... OBJECTIVE To observe the inhibitory effect of Gypsophila oldhamiana gypsogenin (GOG) on Lewis lung cancer growth,and to investigate the mechanism of its anti-tumor effect. METHODS A mouse model bearing Lewis lung cancer was used.The 5 experimental groups were divided into a positive control (cis-diaminedichloroplatinum),a negative control,and high,medium and low-GOG dosage groups.The inhibitory action of GOG administration on the lung cancer was observed.After GOG treatment,the lungs were taken out and a lung coefficient computed.The expressions of VEGF,Bcl-2,Bax and P53 in the cancers were determined using immunohistochemical staining. RESULTS The tumor weight of the mice given various doses of GOG was significantly lower compared to the negative-control group (P<0.01),and the lung coefficient of the groups given high and low GOG doses was significantly lower compared to the negative-control group (P<0.01).Immunohistochemical results were shown as follows:i) The VEGF and Bcl-2 expressions in the GOG groups were significantly lower than that of the negative-control group (P<0.05);ii) Bax expression in the groups treated with high and medium GOG doses was significantly higher compared to the negative-control group (P<0.05);iii) The mutant P53 expression in the GOG-treated groups was significantly lower compared to the negative-control group (P<0.05).CONCLUSION GOG can inhibit the growth and metastasis of Lewis lung cancer,and may exert its mechanism of tumor control by inhibition of tumor angiogenesis and induction of apoptosis. 展开更多
关键词 Gypsophila oldhamiana gypsogenin Lewis lungcancer tumor growth tumor metastasis.
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EXPRESSION AND SIGNIFICANCE OF SURVIVIN mRNA IN LUNG CANCER TISSUE MICROARRAY DETECTED BY FISH 被引量:7
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作者 Xin-yun Wang Zhi Yao +7 位作者 Yan Li Ting Liu Hai-yan Zheng Cong-zhong Zhu Cui-yun Sun Ai-xiang Wang Min Zhao Xing-ye Wu 《Chinese Medical Sciences Journal》 CAS CSCD 2005年第3期214-216,共3页
Objective To investigate the expression of Survivin mRNA in lung cancer tissue microarray (TMA) by fluorescence in .situ hybridization (FISH) method, and determine the role and significance of it in lung cancer ge... Objective To investigate the expression of Survivin mRNA in lung cancer tissue microarray (TMA) by fluorescence in .situ hybridization (FISH) method, and determine the role and significance of it in lung cancer genesis and progress. Methods The expression of Survivin mRNA was detected by FISH method and TMA technology. Fifty-four cases of lung cancer and 10 cases of normal lung tissue were examined. Survivin mRNA was expressed in 66.7% (36/54) of lung cancer; the positive ratio of lung cancer was significantly higher than that of normal lung tissue (0/10;X^2= 15.238, P 〈 0.05). The positive ratio of Survivin mRNA was significantly higher in poor differentiated cancer (20/24, 83.3% ) than moderate and well differentiated cancer (16/30, 53.3%; X^2 = 5.40, P 〈 0.05). The positive ratio of Survivin mRNA was significantly higher in group with lymph node metastasis (27/32, 84.4%) than without lymph node metastasis (9/22, 40.9%; X^2= 11.084, P 〈 0.05). The positive ratio of Survivin mRNA was significantly higher in stage Ⅲ-Ⅳ(12/13, 92.3%) than stage Ⅰ- Ⅱ (24/41,58.5%; X^2=5.066, P〈 0.05). Conclusion Survivin mRNA highly expresses in lung cancer, which is related to the progress and malignant behavior. Survivin may play a promoting role in lung cancer genesis and progress and provide a basis for estimating prognosis and treatment. 展开更多
关键词 fluorescence in situ hybridization tissue microarray SURVIVIN lung cancer
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A novel gain of function mutant in C-kit gene and its tumorigenesis in nude mice 被引量:6
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作者 Chen-Guang Bai Xiao-Hong Liu +2 位作者 Qiang xie Fei Feng Da-Lie Ma 《World Journal of Gastroenterology》 SCIE CAS CSCD 2005年第45期7104-7108,共5页
AIM: To transfect mutant C-kit cDNA at codon 579 into human embryonic kidney cell line to observe its role in the pathogenesis of gastrointestinal stromal tumor (GIST). METHODS: Eukaryotic expression vectors of pc... AIM: To transfect mutant C-kit cDNA at codon 579 into human embryonic kidney cell line to observe its role in the pathogenesis of gastrointestinal stromal tumor (GIST). METHODS: Eukaryotic expression vectors of pcDNA3- Kit-NW and pcDNA3-Kit-W were constructed. Then pcDNA3-Kit-NW and pcDNA3-Kit-W plasrnids were transfected into human embryonic kidney cell line by Upofectamine. The resistant clone was screened by G418 filtration and identified by sequencing, Western blotting, and immunocytochemical staining. Human embryonic kidney cells were divided into three groups including pcDNA3-Kit-NW, pcDNA3-Kit-W, and vector control groups. Absorbency value with a wavelength of 574 nm was detected by MTT analysis. Mice were injected with three groups of cells. Volume, mass, and histological examinations of the tumors in different groups were measured and compared. RESULTS: The C-kit gene and mutant C-kit gene were successfully cloned into the eukaryotic expression vector pcDNA3, pcDNA3-Kit-NW and pcDNA3-Kit-W were successfully transfected into human embryonic kidney cell line and showed stable expression in this cell line. Cell proliferating activity had significant differences between pcDNA3-Kit-NW and pcDNA3, pcDNA3-Kit- NW and pcDNA3-Kit-W (P〈0.05), respectively. Tumors were only observed in nude mice implanted with cells transfected with pcDNA3-Kit-NW. CONCLUSION: Mutation of C-kit gene increases the proliferation activity of human cells and plays an important role in the malignant transformation of GIST. 展开更多
关键词 Gastrointestinal stromal tumors ProtooncogeneC-kit Gene mutation Malignant transformation
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Organ-specific enhancement of metastasis by spontaneous ploidy duplication and cell size enlargement 被引量:1
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作者 Xin Lu Xuemin Lu Yibin Kang 《Cell Research》 SCIE CAS CSCD 2010年第9期1012-1022,共11页
Aneuploidy is commonly observed in breast cancer and is associated with poor prognosis. One frequent type of aneuploidy, hypertetraploidy, may derive from ploidy duplication of hyperdiploid cells. However, the patholo... Aneuploidy is commonly observed in breast cancer and is associated with poor prognosis. One frequent type of aneuploidy, hypertetraploidy, may derive from ploidy duplication of hyperdiploid cells. However, the pathological consequences of ploidy duplication in breast cancer progression have not been characterized. Here, we present an experimental system demonstrating spontaneous appearance of hypertetraploid cells from organ-specific metastatic variants of the MDA-MB-231 breast cancer cell line through ploidy duplication in vitro and in vivo. The hypertetraploid progenies showed increased metastatic potential to lung and brain, but not to bone, which may be partially explained by the distinct capillary structures in these organs that confer differential lodging advantages to tumor cells with enlarged size. Our results suggest a potential mechanistic link between ploidy duplication and enhancement of metastatic potentials, as was observed in previous clinical studies of breast cancer. 展开更多
关键词 breast cancer METASTASIS organotropism hyperploidy cell size
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Suture granuloma of the abdominal wall with intra-abdominal extension 12 years after open appendectomy 被引量:5
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作者 Goran Augustin Dragan Korolija +1 位作者 Mate Skegro Jasminka Jakic-Razumovic 《World Journal of Gastroenterology》 SCIE CAS CSCD 2009年第32期4083-4086,共4页
Most complications after appendectomy occur within ten days; however, we report the unusual case of a suture granuloma 12 years after open appendectomy. The afebrile 75-year-old woman presented with a slightly painful... Most complications after appendectomy occur within ten days; however, we report the unusual case of a suture granuloma 12 years after open appendectomy. The afebrile 75-year-old woman presented with a slightly painful palpable mass in the right lower abdomen. There was no nausea or vomiting and bowel movements were normal. She lost 10 kg during the 3 mo before presentation. The patient had undergone an appendectomy 12 years previously. Physical examination revealed a tender mass, 10 cm in diameter, under the appendectomy scar. The preoperative laboratory findings, tumor markers and plain abdominal radiographs were normal. Multi-slice computed tomography scanning showed an inhomo-genous abdominal mass with minimal vascularization in the right lower abdomen 8.6cm×8cm×9 cm in size which communicated with the abdominal wall. The abdominal wall was thickened, weak and bulging. The abdominal wall mass did not communicate with the cecum or the ascending colon. Complete excision of the abdominal wall mass was performed via median laparotomy. Histopathological examination revealed a granuloma with a central abscess. This case report demonstrates that a preoperative diagnosis of abdominal wall mass after open appendectomy warrants the use of a wide spectrum of diagnostic modalities and consequently different treatment options. 展开更多
关键词 APPENDECTOMY Differential diagnosis Postoperative complication Suture granuloma
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MUTATION OF p53 GENE IN TRANSFORMED RAT TRACHEAL EPITHELIAL CELLS INDUCED BY RADIATION
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作者 赵永良 吴德昌 +1 位作者 刘国廉 项晓琼 《Chinese Medical Sciences Journal》 CAS CSCD 1998年第3期158-160,共3页
The highly conserved domain (exon 5-8) of p53 gene in transformed rat tracheal epithelial (RTE) cells was analyzed by means of polymerase chain reaction and single strand con formation polymorphism (PCR-SSCP). T... The highly conserved domain (exon 5-8) of p53 gene in transformed rat tracheal epithelial (RTE) cells was analyzed by means of polymerase chain reaction and single strand con formation polymorphism (PCR-SSCP). The result showed that single strand of exon 8 gene had mobility shift in polyacrylamide nondenaturing gel. DNA sequencing proved the mutation was G→C transversion at condon 265. 展开更多
关键词 PCR-SSCP p^(53) mutation RADIATION
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Imaging techniques used for the real-time assessment of angiogenesis in digestive cancers
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作者 Adrian Sǎftoiu Peter Vilmann 《World Journal of Gastroenterology》 SCIE CAS CSCD 2011年第1期7-8,共2页
Angiogenesis has a critical role in primary tumor growth and the development of metastases.Several angiogenesis inhibitors were recently developed,being a very attractive target for digestive tumor therapy.However,ind... Angiogenesis has a critical role in primary tumor growth and the development of metastases.Several angiogenesis inhibitors were recently developed,being a very attractive target for digestive tumor therapy.However,individualized therapy should not only be based on the pre-treatment imaging evaluation,but also on sensitive monitoring of microvascular changes during treatment.State-of-theart imaging techniques have the potential to visualize and characterize angiogenesis,although the technology and methodologies employed are recent and need further validation.The aim of this series of reviews was to analyze and enhance current knowledge and future perspectives about the real-time assessment of angiogenesis in digestive cancers,used for the longitudinal monitoring of the effects of chemo-radiotherapy(including anti-angiogenic therapies),as well as for the precise targeting of drugs through molecular-based drug-delivery systems. 展开更多
关键词 ANGIOGENESIS Digestive cancers CHEMORADIOTHERAPY
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Characteristics of liver on magnetic resonance diffusion-weighted imaging:Dynamic and image pathological investigation in rabbit liver VX-2 tumor model 被引量:10
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作者 You-Hong Yuan En-Hua Xiao +6 位作者 Jian-Bin Liu Zhong He Ke Jin Cong Ma Jun Xiang Jian-Hua Xiao Wei-Jian Chen 《World Journal of Gastroenterology》 SCIE CAS CSCD 2008年第25期3997-4004,共8页
AIM: To investigate dynamical and image pathological characteristics of the liver on magnetic resonance (MR) diffusion-weighted imaging (DWI) in the rabbit VX-2 tumor model. METHODS: Forty New Zealand rabbits we... AIM: To investigate dynamical and image pathological characteristics of the liver on magnetic resonance (MR) diffusion-weighted imaging (DWI) in the rabbit VX-2 tumor model. METHODS: Forty New Zealand rabbits were included in the study and VX-2 tumor piece was implanted intrahepatically. Fifteen animals received two intrahepatic implantations while 25 had one intrahepatical implantation. DWI, T1- and T2-weighted of magnetic resonance imaging (MRI) were carried out on the 7th and the 14th d after implantation and DWI was conducted, respectively on the 21th d. Ten VX-2 tumor samples were studied pathologically. RESULTS: The rate of lump detected by DWI, TlWI and T2WI was 78.7%, 10.7% and 53.5% (X^2 =32.61, P 〈 0.001) on the 7th d after implantation and 95.8%, 54.3% and 82.9% (X^2 = 21.50, P 〈 0.001) on the 14th d. The signal of most VX-2 tumors on DWI was uniform and it was equal diffusion coefficient (ADC). did not decrease on the 7th on the map of apparent The signal of VX tumors d after implantation, most of them slowly growing during the week following implantation without significant cell dying within the tumor. VX-2 tumors grew increasingly within 14 d after implantation but the signal of most VX-2 tumors on DWI or on the map of ADC was uniform or uneven and ADC of VX tumors decreased obscurely or slightly because tumor necrosis was still not obvious. On the 21th d after implantation, the signal of most VX-2 tumors on DWI or on the map of ADC was uneven because tumor necrosis was evident and ADC of VX-2 tumor necrotic areas decreased. The areas of viable cells in VX-2 tumors manifested a high signal on DWI and a low signal on the map of ADC. The areas of dead cells or necrosis in VX-2 tumors manifested low signals on DWI and low, equal or high signals on the map of ADC but they manifested high signals on DWI and on the map of ADC at the same time when the areas of necrotic tumor became liquefied or cystic. The border of tumors on DWI appeared gradually distinct and internal signals of tumor became progressively uneven. CONCLUSION: The manifestations of viable, necrotic and liquefied or cystic areas in VX-2 tumors on DWI are typical and DWI is of significant and potential values in clinical application in both the early detection and diagnosis of liver tumors. 展开更多
关键词 LIVER VX-2 tumor Diffusion-weightedimaging Apparent Diffusion Coefficient RABBIT
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The correlation between stroma analysis and MDCT early phase contrast enhancement in small solid lung adenocarcinoma
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作者 Yong Wang Xueguo Liu +10 位作者 Yujing Lin Xianping Yi Lianju Ding Xiaohong Wang Qjngsi Zeng Jianxing He Mingzhu Liang Peixin Qin Guomei Zhong Yanli He Xiaobin Liu 《The Chinese-German Journal of Clinical Oncology》 CAS 2007年第5期419-424,共6页
Objective: To evaluate correlations between proportion and distribution of tumor stroma and MDCT early phase enhancement character in solid lung adenocarcinoma, and compare with microvessel density and histological su... Objective: To evaluate correlations between proportion and distribution of tumor stroma and MDCT early phase enhancement character in solid lung adenocarcinoma, and compare with microvessel density and histological subtypes. Methods: Thirty-one patients with lung adenocarcinoma shown as solid solitary pulmonary nodules underwent routine con-trast-enhanced MDCT followed by surgical resections. CT character included net enhancement and distribution of enhance-ment. The largest cut surface of tumor specimens were stained by hematoxylin and eosin. About 25 fields of view of each specimen were scanned as digitized pictures at low magnification. Semi-auto segmentation software was used to calculate mean stroma proportion. Pearson correlation coefficient was used to represent the relationships between extent of tumor en-hancement, proportion of tumor stroma and MVD respectively. Fisher's exact test was used to analyze statistical differences in degree of CT enhancement among groups of different histological subtypes. Results: Proportion of invasive tumor stroma (13.2%-54.5%, mean 26.2 ± 8.8%) was correlated positively with net enhancement (8-60.8 HU, mean 31.2 ± 13.6 HU; r = 0.483, P = 0.006) which was more than MVD. 58.1% cases showed homogenous enhancement, 32.3% cases showed periph-eral inhomogenous enhancement, 3.2% cases showed central inhomogenous enhancement, 3.2% cases showed asymmetri-cal inhomogenous enhancement, and 3.2% cases showed no enhancement. 58.1% cases' stroma showed mixed distribution, 35.5% cases showed peripheral distribution, 3.2% cases showed central distribution, and 3.2% cases showed asymmetrical distribution. Significantly more adenocarcinomas classified with "net enhancement > 20 HU" were found in the acinar group than in the solid with mucin subtype (P = 0.005). Conclusion: Extent of CT enhancement reflects underlying not only the tumor angiogenesis but also stroma proliferation in solid small lung adenocarcinoma. Tumor stroma proportion could reflect the histopathologic basis of small lung adenocarcinoma's CT enhancement substantially than MVD. Distribution between enhancement and tumor stroma have good correspondence. Most of acinar adenocarcinomas have higher degree of CT net enhancement than solid with mucin adenocarcinomas. 展开更多
关键词 ADENOCARCINOMA LUNG extracellular matrix
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Gastric intramural hematoma accompanied by severe epigastric pain and hematemesis after endoscopic mucosal resection 被引量:2
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作者 Peng Sun Shi-Yun Tan Guo-Hai Liao 《World Journal of Gastroenterology》 SCIE CAS CSCD 2012年第47期7127-7130,共4页
Gastric intramural hematoma is a rare injury of the stomach,and is most often seen in patients with underlying disease.Such injury following endoscopic therapy is even rarer,and there are no universally accepted guide... Gastric intramural hematoma is a rare injury of the stomach,and is most often seen in patients with underlying disease.Such injury following endoscopic therapy is even rarer,and there are no universally accepted guidelines for its treatment.In this case report,we describe a gastric intramural hematoma which occurred within 6 h of endoscopic mucosal resection(EMR).Past medical history of this patient was negative,and laboratory examinations revealed normal coagulation profiles and platelet count.Following EMR,the patient experienced severe epigastric pain and vomited 150 mL of gastric contents which were bright red in color.Subsequent emergency endoscopy showed a 4 cm × 5 cm diverticulum-like defect in the anterior gastric antrum wall and a 4 cm × 8 cm intramural hematoma adjacent to the endoscopic submucosal dissection lesion.Following unsatisfactory temporary conservative management,the patient was treated surgically and made a complete recovery.Retrospectively,one possible reason for the patient's condition is that the arterioles in the submucosa or muscularis may have been damaged during deep and massive submucosal injection.Thus,endoscopists should be aware of this potential complication and improve the level of surgery,especially the skills required for submucosal injection. 展开更多
关键词 Gastric intramural hematoma Endoscopic mucosal resection COMPLICATION
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CLINICAL STUDY ON ACUPUNCTURE TREATMENT OF STOMACH CARCINOMA PAIN 被引量:3
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作者 党文 杨介宾 《Journal of Traditional Chinese Medicine》 SCIE CAS CSCD 1998年第1期31-38,共8页
Clinical observation on 48 cases of stomach carcinoma pain indicated that acupuncture including filiform needle group and point-injection group had better therapeutic effects in treatment of stomach carcinoma pain whe... Clinical observation on 48 cases of stomach carcinoma pain indicated that acupuncture including filiform needle group and point-injection group had better therapeutic effects in treatment of stomach carcinoma pain when patient's mind was concentrated at the site of disease. After treatment for 2 months, the long-term effective rates of analgesia in both the filiform needle group and the point-injection group were similar to that in the western medicine group, all being about 81%. While the long-term markedly effective rates in the two groups were superior to that in the western medicine group. Life quality of the patients in all the groups were improved. The toxic action and side effects caused by chemotherapy were prevented, the high viscous state showed by indexes of blood rheology was improved, and the lowered Cu-Zu-SOD activity in erythrocytes in patients of stomach carcinoma was increased in the filiform needle group and the point-injection group. Based on the results of clinical study, we consider that acupuncture analgesic effect on stomach carcinoma is related to the increase of PLEK, improvement of cellular immune function and the elevation of life quality after acupuncture. 展开更多
关键词 Acupuncture Analgesia Abdominal Pain ADULT Aged Comparative Study Enkephalin Leucine Humans Middle Aged Neoplasm Recurrence Local Pain Intractable Stomach Neoplasms Transfer Factor
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