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유산균(L.lactis CBT-8)및 발효 추출물의 Helicobacter pylori 억제 능력
진춘조,박형석,이혜운,김성렬,강동구,이준상,이재동,왕준호 건국대학교 의과학연구소 2002 건국의과학학술지 Vol.12 No.-
Helicobacter pylori infection was the cause of chronic gastritis, duodenal ulcer and gastric MALT lymphoma. The eradication rates of H. pylori using antibiotics are around 80%. Lactobacilli have been demonstrated to have in vivo and in vitro inhibitory effects on H. pylori infection. We aimed to evaluate the inhibitory effect of L. lactis CBT-8 and its extract on H. pylori in human stomach. Thirty-five H. pylori-infected volunteers(30-49 yr)were randomized into two groups which were treated with L. lactis CBT-8 and its extract(Group A n=17) or milk containing L. lactis CBT-8(Group B, n=18). They underwent 13C-urea breath tests before and after treatment. The DOB30 of group A(n=14) was decreased 41.0% after treatment(26.0±4.9 before, 15.3±2.1 after treatment)(p<0.05). the DOB30 of group B(n=13) was decreased 22.3% after treatment(22.0±2.2 before, 17.1±1.7 after treatment)(p<0.05). In conclusion, L. lactis CBT-8 was effective in suppressing H. pylori infection in human stomach.
김일규,박형준,최진호,장금수,김왕식 대한악안면성형재건외과학회 2002 Maxillofacial Plastic Reconstructive Surgery Vol.24 No.1
Hemangiomas are benign tumors in blood vessels that occur by traumatic or congenital origin. Lesions are appeared early in life, with 73% present at birth and 85% developing by the end of the first year. Head & neck hamangiomas represent about 25%∼33% of all hemangiomas. Kaban & Mulliken divided vascular birthmarks into two major categories : hemangioma and vascular malformation. Case 1 was diagnosed as cavernous hemangioma and the mass was excised completely and defected space was reconstructed with fat tissue. Case 2 was diagnosed definitely as traumatic A-V malformation by post-op histopathological examination and the mass was excised completely. This report describes two cases that were successfully treated by complete surgical excision for hemangioma in maxillofacial region.
( Wang Yong Choi ),( Woo Jin Chung ),( Si Hyun Bae ),( Do Seon Song ),( Myeong Jun Song ),( Young Seok Kim ),( Hyung Joon Yim ),( Young Kul Jung ),( Sang Jun Suh ),( Jun Yong Park ),( Do Young Kim ),( 대한간학회 2016 춘·추계 학술대회 (KASL) Vol.2016 No.1
Aims: The treatment responses of advanced hepatocellular carcinoma( HCC) with portal vein tumor thrombosis(PVTT) were not acceptable and treatment modalities were limited. So, we compared effects and safety of sorafenib vs. hepatic arterial infusion chemotherapy( HAIC). Methods: We prospectively collected data of 58 advanced HCC with PVTT patients whose Child-Turcotte-Pugh(CTP) score range 5 to 7 in 6 university hospitals from January 2013 to Oct 2015. Each twenty nine patients were treated with sorafenib or HAIC. Results: 1. The mean age was 60.2±8.4 years old and 89.7% of the patients were male. Causes of HCC were HBV (67.3%), HCV (8.6%), alcohol (19.0%) and others (5.2%). CTP class A was 89.7%, modified Union for International Cancer Control (mUICC) stage IVa was 63.8%, tumor diameter >10cm was 55.2%, multiple tumor was 60.3%, infiltrative type was 56.9%, main PVTT was 63.8%, median AFP value was 240.4 ng/ml. 2. 29 patients were enrolled to each groups. Baseline characteristics( sex, mean age, cause of HCC, mUICC stage, size of tumor, number of tumor, type of tumor(nodular, massive, infiltrative, diffuse), location of PVTT(main, main+branch, branch). CTP class, median value of AFP) has no significant difference between two groups. 3. The objective response rate was 38.1% in HAIC and 4.5% in sorafenib group (p=0.003). In univariate analysis, treatment modality, main portal vein invasion, objective response, massive tumor type were significant prognostic factors of overall survival (p=0.012, 0.046, 0.011, 0.041) and treatment modality, tumor number, massive tumor type were significant prognostic factors of time to progress (p=0.004, 0.043, <0.01). In multivariate analysis, objective response was a significant prognostic factor of overall survival (p=0.048) and treatment modality was a significant prognostic factor of time to progress (p=0.016). 4. Major complications were neutropenia (6.9%, more than grade 3) and catheter-related complication (3.4%) in HAIC group, hand-foot syndrome (20.7%) and diarrhea (3.4%) in sorafenib group. Conclusions: For treatment of advanced HCC with PVTT patient, HAIC can be a valuable treatment modality like as sorafenib and more large size of study is needed.
The Synthetic Approaches to Modify Methyl (Pyro)pheophorbide a
Wang, Jin-Jun,Han, Guang-Fan,Lee, Jong-Cheol,Shim, Young-Key Korean Society of Photoscience 2002 Journal of Photosciences Vol.9 No.2
Pyropheophorbide and pheophorbide-photosensitizers as chlorin analogues are promising new compounds for PDT because the chlorin analogues are activated with much longer red light at > 670nm and produce less long-term normal tissue phototoxicity than Photofrin. The various chlorin derivatives can be obtained by moditying peripheral substituted group among which meso-H, vinyl group and exocyclic ring are the most active positions. These characteristics prompted us to introduce various groups for constructing modified pyropheophorbide and pheophorbide a compounds. A stereospecific introduction of various double bonds at 3-position was performed to methylpheophorbide a to give a long hydrophobic moiety and cyclic derivatives. Chlorin-C$_{60}$ dyad and chlorin- $C_{60}$-porphyrin triad also were easily prepared by the reaction of terminal aldehyde of methyl pyropheophorbide a. For the reaction on meso $\delta$-position bromination and Vismeier formylation can occur. N,N-dimethylaminoacrolein also reacted on $\delta$-position and was cyclized to isobacteriochlorin, but other modification has not been succeeded. Exocyclic keto function was also modified to give purpurin derivatives, bicyclic and spiro compounds. In this presentation we report a series of modified pyropheophorbide and pheophorbide a derivatives.s.
Mechanistic Analysis of Taxol-induced Multidrug Resistance in an Ovarian Cancer Cell Line
Wang, Ning-Ning,Zhao, Li-Jun,Wu, Li-Nan,He, Ming-Feng,Qu, Jun-Wei,Zhao, Yi-Bing,Zhao, Wan-Zhou,Li, Jie-Shou,Wang, Jin-Hua Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.9
Objectives: To establish a taxol-resistant cell line of human ovarian carcinoma (A2780/Taxol) and investigate its biological features. Methods: The drug-resistant cell line (A2780/Taxol) was established by continuous stepwise selection with increasing concentrations of Taxol. Cell morphology was assessed by microscopy and growth curves were generated with in vitro and in vivo tumor xenograft models. With rhodamine123 (Rh123) assays, cell cycle distribution and the apoptotic rate were analyzed by flow cytometry (FCM). Drug resistance-related and signal associated proteins, including P-gp, MRPs, caveolin-1, PKC-${\alpha}$, Akt, ERK1/2, were detected by Western blotting. Results: A2780/Taxol cells were established with stable resistance to taxol. The drug resistance index (RI) was 430.7. Cross-resistance to other drugs was also shown, but there was no significant change to radioresistance. Compared with parental cells, A2780/Taxol cells were significantly heteromorphous, with a significant delay in population doubling time and reduced uptake of Rh123 (p<0.01). In vivo, tumor take by A2780 cells was 80%, and tumor volume increased gradually. In contrast, with A2780/Taxol cells in xenograft models there was no tumor development. FCM analysis revealed that A2780/Taxol cells had a higher percentage of G0/G1 and lower S phase, but no changes of G2 phase and the apoptosis rate. Expression of P-gp, MRP1, MRP2, BCRP, LRP, caveolin-1, PKC-${\alpha}$, Phospho-ERK1/2 and Phospho-JNK protein was significantly up-regulated, while Akt and p38 MARK protein expression was not changed in A2780/Taxol cells. Conclusion: The A2780/Taxol cell line is an ideal model to investigate the mechanism of muti-drug resistance related to overexpression of drug-resistance associated proteins and activation of the PKC-${\alpha}/ERK$ (JNK) signaling pathway.
Wang, Jun,Yu, Jin-Ming,Jing, Shao-Wu,Guo, Yin,Wu, Ya-Jing,Li, Na,Jiao, Wen-Peng,Wang, Li,Zhang, Yan-Jun Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.14
Over-expression of epidermal growth factor receptor (EGFR) has been identified as a common feature associated with clinical outcome in many types of cancer, including squamous cell carcinoma of the oesophagus (SCCO). However, the clinical importance of EGFR over-expression in SCCO remains unsettled as conflicting results exist. Therefore we carried out the present meta-analysis of published studies for clarification. A total of 13 studies including 1, 150 patients were enrolled. EGFR over-expression was positive in 722 of these cases. With EGFR over-expression, patients had higher depth of invasion, vascular invasion, and poor prognosis. However, expression had no relation with degree of differentiation, histological grade, lymph node metastasis, clinical stage or lymphatic invasion. EGFR over-expression is probably a valuable predictor for the T stage, vascular invasion and OS, and it could be used as a poor prognosis indicator for the esophageal SCC patients. Targeting therapy to EFGR should be considered to the combined treatment in SCCO.