PURPOSE: Carcinomas of the male breast constitutes only 1% of all breast cancer and less than 1.5% of all malignant tumors in men. The low incidence of this disease prevents therapeutic questions from being addressed in prospective randomized trials. Our aim was to cover the characteristics of the etiology, presentation and treatment of male breast cancer; and therefore provide an overview of knowledge in this area. METHODS: We retrospectively analyzed 16 male breast cancer patients, who had been treated between 1983 and 1992 at the Department of Surgery, College of Medicine, The Catholic university of Korea. RESULTS: The peak age of incidence was in the 7th and 8th decades. The most common symptom was a palpable mass in the breast (75.1%), and the duration of symptom varied between 3 days and 10 years. According to the TNM staging system, there were 18.8%, 31.3%, 18.8%, 12.5%, 6.3%, at stages 0, I, II, III and IV, respectively, and 12.5% with an unknown stage. A modified radical mastectomy was performed in 11 patients (68.8%) and postoperative adjuvant therapy in 12 patients (75.1%). The mean duration of following up was 41.2 months, during which time 2 patients were lost. CONCLUSION: Sixteen male breast cancer patients were encountered and men with breast cancer were observed to be older, have a longer duration of symptom, and more likely to have a familial tendency. However, our review revealed that male breast cancer was not as far advanced and had more chance of cure than initially thought. Therefore, the early detection and aggressive treatment of breast cancer are important for improving the survival.
Breast ; Breast Neoplasms ; Breast Neoplasms, Male* ; Humans ; Incidence ; Korea ; Male ; Male* ; Mastectomy, Modified Radical ; Neoplasm Staging ; Retrospective Studies

PURPOSE: Colorectal cancer (CRC) has a high risk for postoperative thromboembolic complications such as venous thromboembolism (VTE) compared to other surgical diseases, but the relationship between VTE and CRC in Asian patients remains poorly understood. The present study examined the incidence of symptomatic VTE in Korean patients who underwent surgery for CRC. We also identified risk factors, incidence and survival rate for VTE in these patients. MATERIALS AND METHODS: The patients were identified from the CRC database treated from January 2011 to December 2012 in a single institution. These patients were classified into VTE and non-VTE groups, their demographic features were compared, and the factors which had significant effects on VTE and mortality between the two groups were analyzed. RESULTS: We analyzed retrospectively a total of 840 patients and the incidence of VTE was 3.7% (31 patients) during the follow-up period (mean, 17.2 months). Histologic subtype (mucinous adenocarcinoma) and previous history of VTE affected the incidence of VTE on multivariate analysis. There was a statistically significant difference in survival rate between the VTE and non-VTE group, but VTE wasn't the factor affecting survival rate on multivariate analysis. Comparing differences in survival rate for each pathologic stage, there was only a significant difference in stage II patients. CONCLUSION: Among CRC patients after surgery, the incidence of VTE was approximately 3% within 1 year and development of VTE wasn't a significant risk factor for death in our study but these findings are not conclusive due to our small sample size.
Asian Continental Ancestry Group ; Colorectal Neoplasms* ; Follow-Up Studies ; Humans ; Incidence ; Mortality ; Multivariate Analysis ; Prognosis* ; Retrospective Studies ; Risk Factors ; Sample Size ; Survival Rate ; Venous Thromboembolism*

BACKGROUND: Cancer invasion is a critical factor for survival and prognosis of patients with cancer. Identifying and targeting factors that influence cancer invasion are an important strategy to overcome cancer. In this study, we investigated the role of fascin known to be associated with cancer invasion. METHODS: Fascin depletion was performed with lentiviral short hairpin RNA against fascin mRNA and stable cell line (Fascin(dep)) was established. Matrigel-Transwell invasion and three-dimensional (3D) culture system were used to observe fascin depletion effects. In order to observe the changes of protease secretion by fascin depleted cancer cells, protease antibody array was performed. RESULTS: Fascin was highly expressed in invasive cancer cells. Fascin-depleted cells showed decreased cancer invasion in Matrigel-Transwell invasion and 3D culture system. In addition, inhibition of proteases secreation and decrease of intracellular proteases mRNA expression were observed in fascin deplete cells. CONCLUSIONS: These results indicates that fascin is closely involved in proteases activity and cancer invasion. Therefore, fascin is a strategically important factor for controlling cancer invasion.
Cell Line ; Gene Silencing ; Head and Neck Neoplasms ; Humans ; Metalloproteases ; Mouth Neoplasms ; Peptide Hydrolases ; Prognosis ; RNA, Messenger ; RNA, Small Interfering ; Tumor Microenvironment

The study was conducted to investigate the effects of dietary calcium and soy isoflavone on body fat and lipid metabolism in high fat-induced obesity. Four week old female C57/BL6J mice, known as a good model of diet-induced obesity, were fed low Ca and high fat diet for 6 weeks. After induced obesity, mice were divided into six groups according to diets varying calcium contents (0.1 or 1.5%) and genistein contents (0 or 500 or 1,000 ppm). Body weight, fat pad (perirenal fat and parameterial fat), adipocyte size, serum total lipid and total cholesterol were significantly decreased by both high Ca intake and genistein supplementation. However, the effect of genistein supplementation showed in low Ca-fed groups. Serum LDL-cholesterol and TG were significantly decreased by high Ca intake and genistein supplementation, respectively. In liver, lipogenic enzymes (fatty acid synthase and malic enzyme) activity and TG were significantly decreased by both high Ca intake and genistein supplementation. This inhibitory effect of genistein on lipogenic enzymes showed in low Ca-fed groups. But liver total cholesterol and total lipid were significantly decreased by high Ca intake and genistein supplementation, respectively. Fecal excretion of total lipid, total cholesterol and TG were significantly increased by high Ca intake, not by genistein supplementation. In conclusion, high calcium intake and genistein supplement may be beneficial for suppression of obesity through direct anti-adipogenesis by decreasing fat weight and size and indirect anti-lipogenesis by inhibiting lipogenic enzymes activity and improving lipid profile.
Adipocytes ; Adipose Tissue* ; Animals ; Body Weight ; Calcium* ; Calcium, Dietary ; Cholesterol ; Diet ; Diet, High-Fat ; Female ; Genistein* ; Humans ; Lipid Metabolism* ; Liver ; Mice ; Mice, Obese* ; Obesity

The number of HIV infected women continues to rise sharply these days and 58% of these women were childbearing age. The increase in the number of AIDS cases among childbearing women has led to an increase in the maternal - infant transmission of human acquired immunodeficiency virus. The aim of our study is to assess the available evidence for preventing mother-to-infant transmission of HIV infection by experience from University Teaching Hospital. Four pregnant women with HIV infection delivered in Pusan National University Hospital from 1999 to 2005 years. Three women visitied at 3rd trimester, only one woman delivered by planned perinatal care. They received antiretroviral therapy during pregnancy, labor, after delivery, and infant received antiretroviral therapy by consideration of their situation. They were compliant with treatment and had a sustained virologic response below the detectable level. Just 2% of infants were trasmitted by human acquired immunodeficiency virus, if HIV infected women had an appropriate prophylaxis. Therefore HIV infected women must be identified early for prevention of maternal-infant transmission, they must receive effective antiretrovirus therapy.
Busan ; Female ; HIV Infections ; HIV* ; Hospitals, Teaching* ; Humans ; Infant ; Perinatal Care ; Pregnancy ; Pregnant Women

The number of HIV infected women continues to rise sharply these days and 58% of these women were childbearing age. The increase in the number of AIDS cases among childbearing women has led to an increase in the maternal - infant transmission of human acquired immunodeficiency virus. The aim of our study is to assess the available evidence for preventing mother-to-infant transmission of HIV infection by experience from University Teaching Hospital. Four pregnant women with HIV infection delivered in Pusan National University Hospital from 1999 to 2005 years. Three women visitied at 3rd trimester, only one woman delivered by planned perinatal care. They received antiretroviral therapy during pregnancy, labor, after delivery, and infant received antiretroviral therapy by consideration of their situation. They were compliant with treatment and had a sustained virologic response below the detectable level. Just 2% of infants were trasmitted by human acquired immunodeficiency virus, if HIV infected women had an appropriate prophylaxis. Therefore HIV infected women must be identified early for prevention of maternal-infant transmission, they must receive effective antiretrovirus therapy.
Busan ; Female ; HIV Infections ; HIV* ; Hospitals, Teaching* ; Humans ; Infant ; Perinatal Care ; Pregnancy ; Pregnant Women

Background: The gut–brain axis (GBA) in Parkinson’s disease (PD) has only been investigated in limited mice models despite dysbiosis of the gut microbiota being considered one of the major treatment targets for neurodegenerative disease. Therefore, this study examined the compositional changes of fecal microbiota in novel transgenic (Tg) mice overexpressing human α-synuclein (hαSyn) proteins under the neuron-specific enolase (NSE) to analyze the potential as GBA model. Results: The expression level of the αSyn proteins was significantly higher in the substantia nigra and striatum of NSEhαSyn Tg mice than the Non-Tg mice, while those of tyrosine hydroxylase (TH) were decreased in the same group. In addition, a decrease of 72.7% in the fall times and a 3.8-fold increase in the fall number was detected in NSE-hαSyn Tg mice. The villus thickness and crypt length on the histological structure of the gastrointestinal (GI) tract decreased in NSE-hαSyn Tg mice. Furthermore, the NSE-hαSyn Tg mice exhibited a significant increase in 11 genera, including Scatolibacter, Clostridium, Feifania, Lachnoclostridium, and Acetatifactor population, and a decrease in only two genera in Ligilactobacillus and Sangeribacter population during enhancement of microbiota richness and diversity. Conclusions The motor coordination and balance dysfunction of NSE-hαSyn Tg mice may be associated with compositional changes in gut microbiota. In addition, these mice have potential as a GBA model.

PURPOSE: Although the role of the estrogen receptor alpha (ER alpha, previously called the estrogen receptor) in breast cancer is well established, that of the second human estrogen receptor (ER), estrogen receptor beta (ER beta), remains uncertain. The expression of cyclooxygenase II (COX II) could also be regulated by sex steroids such as estrogen and progesterone. To investigate whether the expressions of the ER beta, ER alpha, and COX II are elevated in more aggressive breast cancers, the expression of the ER beta was studied by immunohistochemical staining in 20 primary breast cancer and original breast cancer tissues from 20 recurrent cancer patients, and its associations with ER alpha and cyclooxygenase (COX) II were evaluated. METHODS: Paraffin tissue sections from 40 breast cancers, surgically excised at the Department of Surgery, the Catholic University of Korea. were obtained. The immunohistochemical analysis was conducted on 20 non-recurrent, and 20 recurrent primary breast cancer tissues, using polyclonal antibodies to ER beta, ER alpha, and the corresponding monoclonal antibodies to COX II. RESULTS: Of the 40 patients, 15 (37.5%) were ER beta-positive, 30 (75%) were ER alpha-positive, and 24 (60%) were COX II-positive. The ER bata status was not related to the tumor size or menopausal status, but was related to the nodal status. The stati of ER alpha and COX II were not related to other clinico-pathological factors. The ER beta positivity was significantly more frequent in the study than the control group. (ER beta, p = 0.0222; ER alpha p = 0.1441; COX II, p = 1.00) The presence of ER beta was significantly related to the expression of ER alpha and COX II (p = 0.0455, p = 0.0381, respectively). CONCLUSION: These results suggest that the expression of ER beta is associated with early recurrence in breast cancer and the expression of COX II in the presence of ER beta implies the possibility of prognostic significance.
Antibodies ; Antibodies, Monoclonal ; Breast Neoplasms* ; Breast* ; Estrogen Receptor alpha* ; Estrogen Receptor beta* ; Estrogens* ; Humans ; Korea ; Paraffin ; Progesterone ; Prostaglandin-Endoperoxide Synthases* ; Recurrence ; Steroids

PURPOSE: Although the role of the estrogen receptor alpha (ER alpha, previously called the estrogen receptor) in breast cancer is well established, that of the second human estrogen receptor (ER), estrogen receptor beta (ER beta), remains uncertain. The expression of cyclooxygenase II (COX II) could also be regulated by sex steroids such as estrogen and progesterone. To investigate whether the expressions of the ER beta, ER alpha, and COX II are elevated in more aggressive breast cancers, the expression of the ER beta was studied by immunohistochemical staining in 20 primary breast cancer and original breast cancer tissues from 20 recurrent cancer patients, and its associations with ER alpha and cyclooxygenase (COX) II were evaluated. METHODS: Paraffin tissue sections from 40 breast cancers, surgically excised at the Department of Surgery, the Catholic University of Korea. were obtained. The immunohistochemical analysis was conducted on 20 non-recurrent, and 20 recurrent primary breast cancer tissues, using polyclonal antibodies to ER beta, ER alpha, and the corresponding monoclonal antibodies to COX II. RESULTS: Of the 40 patients, 15 (37.5%) were ER beta-positive, 30 (75%) were ER alpha-positive, and 24 (60%) were COX II-positive. The ER bata status was not related to the tumor size or menopausal status, but was related to the nodal status. The stati of ER alpha and COX II were not related to other clinico-pathological factors. The ER beta positivity was significantly more frequent in the study than the control group. (ER beta, p = 0.0222; ER alpha p = 0.1441; COX II, p = 1.00) The presence of ER beta was significantly related to the expression of ER alpha and COX II (p = 0.0455, p = 0.0381, respectively). CONCLUSION: These results suggest that the expression of ER beta is associated with early recurrence in breast cancer and the expression of COX II in the presence of ER beta implies the possibility of prognostic significance.
Antibodies ; Antibodies, Monoclonal ; Breast Neoplasms* ; Breast* ; Estrogen Receptor alpha* ; Estrogen Receptor beta* ; Estrogens* ; Humans ; Korea ; Paraffin ; Progesterone ; Prostaglandin-Endoperoxide Synthases* ; Recurrence ; Steroids

PURPOSE: Endoscopic thyroidectomy has not become a widespread procedure because of limited advantages to its use. We have performed endoscopic thyroidectomies by use of the axillary approach. The purpose of this study was to determine the efficacy of this surgical procedure. METHODS: Between June of 2002 and December of 2002, 17 patients underwent an endoscopic thyroidectomy by use of the axillary approach while 11 patients underwent a conventional thyroidectomy. Each procedure was performed by one surgeon under general anesthesia. Patients with thyroid carcinoma at the preoperative diagnosis or who received a bilateral thyroidectomy were excluded. We compared the age, size of the tumor, postoperative pain (48 hours after surgery), surgical time, cosmetic result, length of hospital stay, and paresthesia. Statistical analysis was determined by use of the Mann-Whitney test and the chi-square test using SPSS software. RESULTS: The mean age of the patients was 46.6 years who received a conventional thyroiodectomy and 32.9 years who underwent the axillary approach. The size of the tumor was 3.1 cm for patients who received conventional thyroiodectomy and 3.3 cm for patients who underwent the axillary approach. The operation time was 80.91±16.1 (65~100) minutes for the conventional thyroiodectomy and 135.3± 34.6 (80~210) minutes for the axillary approach. The difference between the two approaches in regards to parameters such as postoperative pain, parethesia, and total hospital days was negligible. The degree of satisfaction was 2.7±0.8 for the conventional thyroiodectomy and 1.1±0.3 for the axillary approach. CONCLUSION: While conventional thyroidectomy still offers an advantage in terms of surgical time, performance of endoscopic thyroidectomy by the axillary approach has an advantage in producing better cosmetic results. Although a multitude of patients will be necessary to follow in further studies, the use of endoscopic thyroidectomy by the axillary approach could become the procedure of choice by offering better cosmetic results to young patients who present with thyroid nodules.
Anesthesia, General ; Diagnosis ; Humans ; Length of Stay ; Operative Time ; Pain, Postoperative ; Paresthesia ; Thyroid Neoplasms ; Thyroid Nodule ; Thyroidectomy*