• 대한병리학회지
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• 제52권6호
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• pp.420-424
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• 2018

• Asian Pacific Journal of Cancer Prevention
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• 제15권2호
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• pp.707-712
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• 2014

Purpose: Anastomotic leakage (AL) is associated with high morbidity and mortality, high reoperation rates, and increased hospital length of stay. Here we investigated the risk factors for AL after anterior resection for rectal cancer with a double stapling technique. Patients and Methods: Data for 460 patients who underwent primary anterior resection with a double stapling technique for rectal carcinoma at a single institution from 2003 to 2007 were prospectively collected. All patients experienced a total mesorectal excision (TME) operation. Clinical AL was defined as the presence of leakage signs and confirmed by diagnostic work-up according to ICD-9 codes 997.4, 567.22 (abdominopelvic abscess), and 569.81 (fistula of the intestine). Univariate and logistic regression analyses of 20 variables were undertaken to determine risk factors for AL. Survival was analysed using the Cox regression method. Results: AL was noted in 35 (7.6%) of 460 patients with rectal cancer. :Median age of the patients was 65 (50-74) and 161 (35%) were male. The diagnosis of AL was made between the 6th and 12th postoperative day (POD; mean 8th POD). After univariate and multivariate analysis, age (p=0.004), gender (p=0.007), tumor site (p<0.001), preoperative body mass index (EMI) (p<0.001), the reduction of TSGF on 5th POD less than 10U/ml (p=0.044) and the pH value of pelvic dranage less than or equal to 6.978 on 3rd POD (p<0.001) were selected as 6 independent risk factors for AL. It was shown that significant differences in survival of the patients were AL-related (p<0.001), high ASA score related (p=0.036), high-level EMI related (p=0.007) and advanced TNM stage related

• 대한방사선치료학회지
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• 제1권1호
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• pp.79-83
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• 1985

Carcinoma of the breast has been treated by surgery followed by irradiation of the chest wall and regional lymphatics treatment planning of the breast cancer is required that lung must be spared as much as possible. However megavoltage irradiation of the internal mammary chain results in high dose to underlying heart, esophagus and spinal cord. Electron beam can be used for the irradiation of the internal mammary chain instead of megavoltage beam. We studied dose distribution of single anterior electron field, compared with traditional treatment methods. 12 and 15MeV electron beam with bolus has good dose distribution to spare underlying lung tissue and other organs.

• 한국식품위생안전성학회지
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• 제25권3호
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• pp.209-214
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• 2010

Metastasis is the primary cause of from breast cancer mortality. Cell migration and invasion play important roles in neoplastic metastasis. Matrix metalloproteinase-9 (MMP-9), which degrades the extracellular matrix (ECM), plays an important role in cancer cell invasion. NF-${\kappa}B$ is transcription factor important in the regulation of MMP-9, as the promoter of MMP-9 gene contains binding sites for NF-${\kappa}B$. Brazilin, an active component of sappan wood (Caesalpinia sappan), decreases TPA-induced MMP-9 expression and invasion in MCF-7 cells. Also, brazilin suppressed NF-${\kappa}B$ activation in TPA-treated MCF-7 cells. Taken together, we demonstrated that the inhibition of TPA-induced MMP-9 expression and cell invasion by brazilin is mediated by the suppression of the NF-${\kappa}B$ pathway in MCF-7 cells. This result suggest brazilin provide a potential therapeutic app roach for the treatment of breast cancer.

• Asian Pacific Journal of Cancer Prevention
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• 제16권4호
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• pp.1559-1563
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• 2015

Background: Male breast cancer accounts for less than 1% of all cancers found in men. It usually presents at a later age and stage as compared to female breast cancer. Treatment strategies are extrapolated from the management of female breast cancer. Our study here looked at 18 patients diagnosed with and treated for male breast cancer at The Aga Khan University Hospital in Pakistan. We compared our findings with the existing data from Asian and Western countries. Materials and Methods: A retrospective study was conducted looking at patients with male breast cancer between January 1986 and December 2009. Patient and disease characteristics were analyzed and 5 year overall survival was calculated using Microsoft Excel and SPSS. Results: The average age at diagnosis was 52 years (38-67 years). Twelve (66.7%) patients had axillary lymphadenopathy. Stage II disease was the most common stage at presentation (9 patients, 50%). Infiltrating ductal carcinoma was seen in 16 patients (88.8%). Seven lesions were positive for both estrogen and progesterone receptors. Sixteen patients had surgery in the form of either modified radical mastectomy or radical mastectomy. Radiation was used in 7 patients in an adjuvant setting. The five year overall survival for stage I, II, III and IV disease was 100% vs 78% vs 50% vs 0%( p<0.05). Five year overall survival was 61%. None of the other prognostic factors were statistically significant. Median follow up was 15 months (3-202 months). Conclusions: Male breast cancer may be on a slow rise but is still an uncommon disease. Tumor stage and lymph node status are important prognostic markers. Public awareness and screening may help in detecting the disease at an earlier stage. Prospective trials are needed to improve the management of this disease.

• 한국환경성돌연변이발암원학회지
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• 제21권1호
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• pp.34-43
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• 2001

Di-2-ethylhexyl phthalate (DEHP) is the most commonly used phthalate ester in polyvinyl chloride formulations including food packing and storage of human blood. DEHP is a well known as non-genotoxic carcinogen and endocrine disrupting chemical (EDC). DEHP have shown all negative results in ICH-guildeline recommended standard genotoxicity test battery. In this study, to assess the clastogenic and DNA damaging effect in human-derived tissue specific cells, DEHP was treated in human derived MCE-7 cells, HepG2 cells, LNCap cells, BeWo cells, MCE-10A cells, and female peripheral blood cells using micronucleus assay and in human breast carcinoma MCF-7 cells up to $1.28$\times$10^{-2}$ M using Comet assay. The in vitro micronucleus assay is a mutagenicity test system for the detection of chemicals which induce the formation of small membrane bound DNA fragment i.e. micronuclei in the cytoplasm of interphase cells, originated from clastogenic and/or aneugenic mechanism. The single cell gel electrophoresis assay (Comet assay) is used to detect DNA strand-breaks and alkaline labile site. In our results, DEHP increased significantly and/or dose-depentently and time-dependently micronucleus frequency at the 6 and 24 hr without metabolic activation system only in MCE-7 cells. DEHP treated with 2 hrs in MCF-7 cells using Comet assay induced DNA damage dose-depentantly.

• 한국멀티미디어학회논문지
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• 제4권2호
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• pp.108-115
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• 2001

본 연구에서는 RGB칼라영상에서 세 칼라 객체의 색상에 따라 정량적으로 분류하기 위하여 ML(Maximum Likelihood) 분류법 을 개선 시도하여 보았다. RGB 칼라 영상이라 하면 빨강, 초록, 파랑의 세 밴드로 이루어진다. 스펙트룸과 공간상의 요소를 고려한다면 3차원적인 구조를 갖게 된다. 이러한 3차원 구조의 voxel를 RGB cube에 투사하여 이로부터 ML분류법의 개선 방법론을 적용하여 보았다. 전례적으로 쉽게 사용되어지는 Box 분류법과 비교 검토하여 보았으며 Bayesian decision 이론을 기반으로한 통계학적인 ML 분류법을 사용하였다. 유방암 항체조직영상에 이 방법론을 응용하며 양성 세포핵 음성 세포핵 그리고 배경을 분류하는데 좋은 결과를 얻어 임상에서 유방암 환자의 예후 및 진단에 사용할 수 있도록 연구하였다.

• BMB Reports
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• 제34권1호
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• pp.33-38
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• 2001

The human PTK6 (also known as Brk) polypeptide, which is deduced from its full-length cDNA, represents a non-receptor protein tyrosine kinase (PTK). It contains SH3, SH2, and tyrosine kinase catalytic domains that are closely related to Src family members. We generated an antihuman PTK6 antibody by immunizing rabbits with a PTK6-specific oligopeptide conjugated to BSA, which corresponds to 11 amino acid residues near the C-terminus. An immunoblot analysis with the antibody detected an expected 52-kDa band in various mammalian transformed cell lines. Immunoprecipitation and immunoblot analyses demonstrated that PTK6 is phosphorylated on the tyrosine residues) and interacts with approximately a 23-kDa tyrosine-phosphorylated polypeptide (most likely a substrate of PTK6) in breast carcinoma T-47D cells. An immunofluorescence analysis demonstrated that PTK6 is localized throughout the cytoplasm of T-47D cells. These results support a possible role for PTK6 in the intracellular signal transduction through tyrosine phosphorylation.

• 대한세포병리학회지
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• 제8권2호
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• pp.160-163
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• 1997

The cytologic finding of proliferating trichilemmal tumor is not well documented and have difficulties in the cytological analysis of the fine needle aspirates. This rare dermatopathologic entity may be encountered during aspiration biopsy of subcutaneous masses, and is, occasionally, confused with other neoplasm, particulary squamous carcinoma owing to its close cytological resemblance. We report a case of proliferating trichilemmal tumor in the left breast. The patient is a woman and had a lump in the breast for 20 years. Fine needle aspiration revealed a few small clusters of squamoid cells in the background of amorphous and calcified material. After excisional biopsy, the mass was confirmed as proliferating trichilemmal tumor. The main cytologic features discriminating squamous cell carcinoma were bland nature of epithelial cells, absence of atypical dyskeratotic cells, and rich amount of amorphous material.

• Journal of Gastric Cancer
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• 제14권3호
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• pp.215-219
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• 2014

Distant metastasis from papillary thyroid carcinoma (PTC), particularly from papillary thyroid microcarcinoma, is rare. We present a case of perigastric lymph node metastasis from PTC in a patient with early gastric cancer and breast cancer. During post-surgical follow-up for breast cancer, a 56-year-old woman was diagnosed incidentally with early gastric cancer and synchronous left thyroid cancer. Therefore, laparoscopic distal gastrectomy with lymph node dissection and left thyroidectomy were performed. On the basis of the pathologic findings of the surgical specimens, the patient was diagnosed to have papillary thyroid microcarcinoma with perigastric lymph node metastasis and early gastric cancer with mucosal invasion. Finally, on the basis of immunohistochemical staining with galectin-3, the diagnosis of perigastric lymph node metastasis from PTC was made. When a patient has multiple primary malignancies with lymph node metastasis, careful pathologic examination of the surgical specimen is necessary; immunohistochemical staining may be helpful in determining the primary origin of lymph node metastasis.