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| 1 | Ameliorative effects of bombesin and neurotensin on trinitrobenzene sulphonic acid-induced colitis,oxidative damage and apoptosis in rats显示文摘AIM:To investigate the effects of bombesin (BBS) and neurotensin (NTS) on apoptosis and colitis in an ulcerative colitis model. METHODS:In this study, a total of 50 rats were divided equally into 5 groups. In the control group, no colitis induction or drug administration was performed. Colitis was induced in all other groups. Following the induction of colitis, BBS, NTS or both were applied to three groups of rats. The remaining group (colitis group) received no treatment. On the 11th d after induction of colitis and drug treatment, blood samples were collected for TNF-α and IL-6 level studies. Malondialdehyde (MDA), carbonyl, myeloperoxidase (MPO) and caspase-3 activities, as well as histopathological findings, evaluated in colonic tissues. RESULTS:According to the macroscopic and microscopic findings, the study groups treated with BBS, NTS and BBS + NTS showed significantly lower damage and inflammation compared with the colitis group (macroscopic score, 2.1 ± 0.87, 3.7 ± 0.94 and 2.1 ± 0.87 vs 7.3 ± 0.94;microscopic score, 2.0 ± 0.66, 3.3 ± 0.82 and 1.8 ± 0.63 vs 5.2 ± 0.78, P < 0.01). TNF-α and IL-6 levels were increased significantly in all groups compared with the control group. These increases were significantly smaller in the BBS, NTS and BBS + NTS groups compared with the colitis group (TNF-α levels, 169.69 ± 53.56, 245.86 ± 64.85 and 175.54 ± 42.19 vs 556.44 ± 49.82;IL-6 levels, 443.30 ± 53.99, 612.80 ± 70.39 and 396.80 ± 78.43 vs 1505.90 ± 222.23, P < 0.05). The colonic MPO and MDA levels were significantly lower in control, BBS, NTS and BBS + NTS groups than in the colitis group (MPO levels, 24.36 ± 8.10, 40.51 ± 8.67 and 25.83 ± 6.43 vs 161.47 ± 38.24;MDA levels, 4.70 ± 1.41, 6.55 ± 1.12 and 4.51 ± 0.54 vs 15.60 ± 1.88, P < 0.05). Carbonyl content and caspase-3 levels were higher in the colitis and NTS groups than in control, BBS and BBS + NTS groups (carbonyl levels, 553.99 ± 59.58 and 336.26 ± 35.72 vs 209.76 ± 30.92, 219.76 ± 25.77 and 220.34 ± 36.95;caspase-3 levels, 451.70 ± 68.27 and 216.20 ± 28.17 vs 28.60 ± 6.46, 170.50 ± 32.37 and 166.50 ± 30.95, P < 0.05). CONCLUSION:The results of this study suggest BBS and NTS, through their anti-inflammatory actions, support the maintenance of colonic integrity and merit consideration as potential agents for ameliorating colonic inflammation. | Alper Akcan Sebahattin Muhtaroglu Hulya Akgun Hizir Akyildiz Can Kucuk Erdogan Sozuer Alper Yurci Namik Yilmaz | 2008 | World Journal of Gastroenterology2008,14,8: | 14 |
| 2 | Melatonin reduces bacterial translocation and apoptosis in trinitrobenzene sulphonic acid-induced colitis of rats显示文摘AIM: To investigate the effects of exogenous melatonin on bacterial translocation and apoptosis in a rat ulcerati-ve colitis model. METHODS: Rats were randomly assigned to three groups: groupⅠ: control, group Ⅱ: experimental colitis, group Ⅲ: colitis plus melatonin treatment. On d 11 after colitis, plasma tumor necrosis factor-α, portal blood endotoxin levels, colon tissue myeloperoxidase and caspase-3 activity were measured. Bacterial translocation was quantified by blood, lymph node, liver and spleen culture. RESULTS: We observed a significantly reduced inciden-ce of bacterial translocation to the liver, spleen, mesen-teric lymph nodes, portal and systemic blood in animals treated with melatonin. Treatment with melatonin signifi-cantly decreased the caspase-3 activity in colonic tissues compared to that in trinitrobenzene sulphonic acid-trea-ted rats (16.11 ± 2.46 vs 32.97 ± 3.91, P < 0.01). CONCLUSION: Melatonin has a protective effect on ba-cterial translocation and apoptosis. | Alper Akcan Can Kucuk Erdogan Sozuer Duygu Esel Hizir Akyildiz Hulya Akgun Sabahattin Muhtaroglu Yucel Aritas | 2008 | World Journal of Gastroenterology2008,14,6: | 5 |
| 3 | 玻璃体内注射贝伐单抗对DME患者视力、黄斑中心厚度和眼血流的影响(英文)显示文摘目的:探讨玻璃体内注射贝伐单抗对伴有黄斑水肿的糖尿病患者眼血流参数的影响。方法:患者21例21眼,伴有弥漫性糖尿病性黄斑水肿(diabeticmacular edema,DME),黄斑中心厚度(central macularthickness,CMT)>320μm,无缺血性黄斑水肿或其他血管性视网膜疾病。患者术前以及注射1.25mg/0.05mL贝伐单抗1d,4wk后接受三种眼科检查:视力(visual acuity,VA)检测、光学相干断层扫描(optical coherence tomography,OCT)测量CMT以及采用超声成像测量眼动脉(ophthalmicartery,OA)、视网膜中央动脉(central retinal artery,CRA)、鼻侧睫状后动脉(nasal posterior ciliary artery,NPCA)以及颞侧睫状后动脉(temporal posterior ciliary artery,TPCA)中的收缩期峰值血流速度(peak systolic velocities,PSV)和舒张末期血流速度(end-diastolic velocities,EDV)。阻力指数(resistive indices,RI)由软件自动计算,注射前与注射后1d的血流速度进行了比较。患者术前和注射后4wk的VA和CMT值进行了比较。结果:注射前平均最佳矫正视力(best-corrected visual acuity,BCVA)为0.88±0.21logMAR,注射后为0.54±0.19logMAR(P<0.01)。平均CMT由注射前440.57±54.58μm下降至250.33±31.12μm(-190.24±36.00μm)。PSV、EDV和RI的变化并不显著。结论:贝伐单抗注射后视力显着改善,CMT降低,而PSV、EDV和RI在OA、CRA、TPCA和NPCA中没有显著变化。玻璃体内注射贝伐单抗注射液能改善VA和CMT,但对于糖尿病患者的OA、CRA、TPCA和NPCA的血流速度没有影响。 | Mehmet Demir Alper Ozel Burcu Dirim Erhan Ozdal Efe Can | 2013 | 国际眼科杂志2013,13,3: | 2 |
| 4 | Urease Activity and Urea Gene Sequencing of Coccoid Forms of H. pylori Induced by Different Factors显示文摘 | Fusun Can Ceren Karahan Istar Dolapci Muge Demirbilek Alper Tekeli Hande Arslan | 2008 | Current Microbiology2008,,2: | 1 |
| 5 | Clitoris metastasis from a retroperitoneal leiomyosarcoma: A case report显示文摘Leiomyosarcoma is a rare form of cancer commonly found in the retroperitoneum, uterus, stomach, small intestine and vascular tissue. Surgery with a wide margin of resection is the most effective treatment. Nevertheless, metastasis is common and generally occurs within the first 3 years. The liver and lungs are the most common sites of metastasis in leiomyosarcoma. Other sites of metastasis include bone, spleen, soft tissues and brain. Metastatic tumours of the clitoris are extremely rare. As cited in the literature, the most common cancers that metastasize to the clitoris are breast, bladder, renal and gastric. Here, we report a case of a clitoral mass in a 64-year-old woman who received an operation for retroperitoneal leiomyosarcoma 4 years prior. Mass resection was performed. The pathological diagnosis was a leiomyosarcoma metastasis. The patient also presented with brain and lung metastases at the time of the clitoral metastasis. This is the first case of clitoral and brain metastases originating from a retroperitoneal leiomyosarcoma. | Suna Cokmert Lutfiye Demir Murat Akyol Ibrahim Vedat Bayoglu Alper Can Ilkay Tugba Unek Filiz Aka Bolat | 2014 | World Journal of Clinical Oncology2014,5,1: | 1 |