1.Cyclin D1 Expression in Primary Breast Carcinoma: Correlation with Estrogen Receptor Status and Other Clinicopathologic Parameters.
Hyo Chan SEO ; Seoung Il KIM ; Woo Ick YANG ; Chan Hun PARK ; Chul Jae PARK
Journal of Korean Breast Cancer Society 2002;5(1):1-6
PURPOSE: Cyclins are groups of proteins that play a role as a major regulator of the G1 restriction point promoting inactivation of the retinoblastoma protein. The cyclin D1 gene, CCND1, is amplified in approximately 20% of breast carcinomas and the protein is reportedly overexpressed in 60~80% of all cases. Cyclin D1 overexpression was strongly correlated to estrogen receptor positivity and better histologic grade in breast cancer. The aim of this study was to correlate cyclin D1 overexpression using a well characterized antibody with estrogen receptor status and other clincopathologic parameters. METHODS: From March 1989 to December 1994, 85 patients with primary breast carcinoma were the subject in this study. We analyzed cyclin D1 expression by immnohistochemical staining using cyclin D1 antibody, cells were considered positive according to distinct nuclear staining. The correlation between cyclin D1 expression was compared with important clinicopathologic parameters (tumor size, axillary lymph node status, p53 expression, c-erbB2 expression, histologic grade, estrogen receptor status). RESULTS: Cyclin D1 expression was detected in 37 cases (43.5%). Cyclin D1 expression was high in patients with tumors that expressed estrogen receptor (58.5% vs 26.5%, P=0.019). Cyclin D1 was mainly overexpressed in the histologic grade I and II (75.0%), as compared with 65.2% in cyclin D1 negative tumor, however there was no statistical significance (P=0.067). There were no significant correlation with tumor size, axillary lymph node status, p53 expression, or c-erbB2 expression (P>0.05). CONCLUSION: Cyclin D1 expression in estrogen receptor (ER) positive patients was significantly higher than that seen in ER negative patients. There was a negative correlation between cyclin D1 and tumor histologic grade, however it was not statistically significant. Tumor size, axillary lymph node status, p53 expression, and c-erbB2 expression were not correlated with cyclin D1.
Breast Neoplasms*
;
Breast*
;
Cyclin D1*
;
Cyclins*
;
Estrogens*
;
G1 Phase Cell Cycle Checkpoints
;
Genes, bcl-1
;
Humans
;
Lymph Nodes
;
Retinoblastoma Protein
2.Cyclin D1 Expression in Primary Breast Carcinoma: Correlation with Estrogen Receptor Status and Other Clinicopathologic Parameters.
Hyo Chan SEO ; Seoung Il KIM ; Woo Ick YANG ; Chan Hun PARK ; Chul Jae PARK
Journal of the Korean Surgical Society 2001;61(5):479-484
PURPOSE: Cyclins are groups of proteins that play a role as a major regulator of the G1 restriction point promoting inactivation of the retinoblastoma protein. The cyclin D1 gene, CCND1, is amplified in approximately 20% of breast carcinomas and the protein is reportedly overexpressed in 60~80% of all cases. Cyclin D1 overexpression was strongly correlated to estrogen receptor positivity and better histologic grade in breast cancer. The aim of this study was to correlate cyclin D1 overexpression using a well characterized antibody with estrogen receptor status and other clincopathologic parameters. METHODS: From March 1989 to December 1994, 85 patients with primary breast carcinoma were the subject in this study. We analyzed cyclin D1 expression by immnohistochemical staining using cyclin D1 antibody, cells were considered positive according to distinct nuclear staining. The correlation between cyclin D1 expression was compared with important clinicopathologic parameters (tumor size, axillary lymph node status, p53 expression, c-erbB2 expression, histologic grade, estrogen receptor status). RESULTS: Cyclin D1 expression was detected in 37 cases (43.5%). Cyclin D1 expression was high in patients with tumors that expressed estrogen receptor (58.5% vs 26.5%, P=0.019). Cyclin D1 was mainly overexpressed in the histologic grade I and II (75.0%), as compared with 65.2% in cyclin D1 negative tumor, however there was no statistical significance (P=0.067). There were no significant correlation with tumor size, axillary lymph node status, p53 expression, or c-erbB2 expression (P>0.05). CONCLUSION: Cyclin D1 expression in estrogen receptor (ER) positive patients was significantly higher than that seen in ER negative patients. There was a negative correlation between cyclin D1 and tumor histologic grade, however it was not statistically significant. Tumor size, axillary lymph node status, p53 expression, and c-erbB2 expression were not correlated with cyclin D1.
Breast Neoplasms*
;
Breast*
;
Cyclin D1*
;
Cyclins*
;
Estrogens*
;
G1 Phase Cell Cycle Checkpoints
;
Genes, bcl-1
;
Humans
;
Lymph Nodes
;
Retinoblastoma Protein
3.Clinical profile and 5-year survival rate of uterine cervical cancer.
Hyo Pyo LEE ; Jin Wan PARK ; Dae Sik SEO ; Sung Whan HA ; Chan Il PARKK ; Young Min CHOI ; Soon Beom KANG ; Yoon Seok CHANG ; Myon Woo SHIN
Korean Journal of Obstetrics and Gynecology 1993;36(6):854-862
No abstract available.
Survival Rate*
;
Uterine Cervical Neoplasms*
4.Hypogonadism Makes Dyslipidemia in Klinefelter's Syndrome.
Hyo Serk LEE ; Chan Woo PARK ; Joong Shik LEE ; Ju Tae SEO
Journal of Korean Medical Science 2017;32(11):1848-1851
Klinefelter's syndrome (KS) is a genetic syndrome that presents with hypogonadism and is associated with metabolic syndrome. Patients demonstrating hypogonadism show a greater prevalence of metabolic syndrome due to changes in body composition. We aimed to determine the association between KS and dyslipidemia. The KS group comprised 55 patients who visited the infertility clinic for an infertility evaluation and were confirmed as having a diagnosis of KS. The control group comprised 120 patients who visited the clinic for health screening. Patient characteristics were compared between the two groups with respect to height, weight, body mass index (BMI), testosterone, total cholesterol, high-density lipoprotein (HDL) cholesterol, low-density lipoprotein (LDL) cholesterol, and triglyceride (TG) levels. Height and weight were significantly greater in patients belonging to the KS group, but no statistically significant difference was found with respect to the BMI. Testosterone levels in patients belonging to the KS group were significantly lower compared to the control group (2.4 ± 2.6 vs. 5.2 ± 1.8 ng/mL, P < 0.001). Compared to the control group, TG levels in patients belonging to the KS group were increased (134.9 ± 127.8 vs. 187.9 ± 192.1 mg/dL, P = 0.004) and HDL cholesterol was significantly decreased (51.2 ± 22.0 vs. 44.0 ± 9.5 mg/dL, P = 0.009). LDL cholesterol and total cholesterol were not significantly different between the two groups (P = 0.076 and P = 0.256, respectively). Significant differences were noted between patients belonging to the KS group and normal control group with respect to elevated TG and decreased HDL cholesterol levels.
Body Composition
;
Body Weight
;
Cholesterol
;
Cholesterol, HDL
;
Cholesterol, LDL
;
Diagnosis
;
Dyslipidemias*
;
Humans
;
Hypogonadism*
;
Infertility
;
Klinefelter Syndrome*
;
Lipoproteins
;
Mass Screening
;
Prevalence
;
Testosterone
;
Triglycerides
5.Asphyxia Due to Oxygen Deficiency: The Report of Two Autopsy Cases.
Seok Hoon JEON ; Hyo Jeong KANG ; Jang Hee KIM ; Sang Yong LEE ; Chan Seong PARK ; Jin Pyo KIM ; Joong Seok SEO
Korean Journal of Legal Medicine 2004;28(2):47-51
Two autopsy cases of asphyxia due to oxygen deficiency are reported. The first case is that a 38-year-old man died in a storehouse. Many pears were stored in a storehouse and the its atmosphere was strictly controlled. The second case is that a 42-year-old man died in the boiler room of a fishing ship. Much amount of Freon gas escaped due to a defect of the refrigerator in the boiler room. The victim entered the boiler room because he repaired the refrigerator. But, the victim died when he entered the boiler room immediately. In this article, the autopsy findings and the contents of the investigation of scene of two cases are described.
Adult
;
Anoxia*
;
Asphyxia*
;
Atmosphere
;
Autopsy*
;
Chlorofluorocarbons
;
Humans
;
Oxygen*
;
Pyrus
;
Ships
;
United Nations
6.Combinatorial Antitumor Activity of Oxaliplatin with Epigenetic Modifying Agents, 5-Aza-CdR and FK228, in Human Gastric Cancer Cells.
Jong Kook PARK ; Jung Seon SEO ; Suk Kyeong LEE ; Kenneth K CHAN ; Hyo Jeong KUH
Biomolecules & Therapeutics 2018;26(6):591-598
Epigenetic silencing is considered to be a major mechanism for loss of activity in tumor suppressors. Reversal of epigenetic silencing by using inhibitors of DNA methyltransferase (DNMT) or histone deacetylases (HDACs) such as 5-Aza-CdR and FK228 has shown to enhance cytotoxic activities of several anticancer agents. This study aims to assess the combinatorial effects of gene-silencing reversal agents (5-Aza-CdR and FK228) and oxaliplatin in gastric cancer cells, i.e., Epstein-Barr virus (EBV)-negative SNU-638 and EBV-positive SNU-719 cells. The doublet combinatorial treatment of 5-Aza-CdR and FK228 exhibited synergistic effects in both cell lines, and this was further corroborated by Zta expression induction in SNU-719 cells. Three drug combinations as 5-Aza-CdR/FK228 followed by oxaliplatin, however, resulted in antagonistic effects in both cell lines. Simultaneous treatment with FK228 and oxaliplatin induced synergistic and additive effects in SNU-638 and SNU-719 cells, respectively. Three drug combinations as 5-Aza-CdR prior to FK228/oxaliplatin, however, again resulted in antagonistic effects in both cell lines. This work demonstrated that efficacy of doublet synergistic combination using DNMT or HDACs inhibitors can be compromised by adding the third drug in pre- or post-treatment approach in gastric cancer cells. This implies that the development of clinical trial protocols for triplet combinations using gene-silencing reversal agents should be carefully evaluated in light of their potential antagonistic effects.
Antineoplastic Agents
;
Cell Line
;
DNA
;
Drug Combinations
;
Epigenomics*
;
Herpesvirus 4, Human
;
Histone Deacetylases
;
Humans*
;
Stomach Neoplasms*
;
Triplets
7.Incidence and Mortality of Osteoporotic Refractures in Korea according to Nationwide Claims Data
Jun Il YOO ; Yong Chan HA ; Ki Soo PARK ; Rock Beum KIM ; Sung Hyo SEO ; Kyung Hoi KOO
Yonsei Medical Journal 2019;60(10):969-975
PURPOSE: Studies on the incidence and mortality of refractures after primary osteoporotic fracture are limited by the relatively rare incidence of such refractures and small sample sizes. The objectives of this research were: 1) to determine the incidence of osteoporotic refractures and fracture locations and 2) to assess mortality rates associated with osteoporotic refracture over a median follow up of 3 years using nationwide claim database. MATERIALS AND METHODS: Patients over 50 years of age who had an osteoporotic fracture that was confirmed operationally were enrolled. Refracture was defined as that after 6 months of an untreated period. Mortality rate was calculated using the Charlson comorbidity index and was analyzed using Cox proportional hazards regression analysis. RESULTS: A total of 18956 first-time instances of osteoporotic fracture were reported between 2007 and 2012 after a median follow up of 3.1 years (range, 1 to 7 years). Among 18956 patients, 2941 (15.50%) experienced refracture. After follow up for 1 year, cumulative mortality rates for re-fracture and non-refracture groups were 9.1% and 7.2%, respectively. After adjusting for covriates, mortality rate was 1.2 times greater in patients with re-fracture than in patients without re-fracture over a median follow up of 3 years (hazard ratio: 1.20, 95% confidence interval: 1.08–1.34, p<0.001). CONCLUSION: The incidence of osteoporotic re-fracture in this nationwide study was 15.5%, and the mortality rate of re-fracture patients was 1.2 times higher than that of non-refracture patients over a median follow up of 3 years.
Comorbidity
;
Follow-Up Studies
;
Humans
;
Incidence
;
Korea
;
Mortality
;
Osteoporotic Fractures
;
Sample Size
8.Fibrous Pseudotumor in the Testicular Tunica.
Tae Hyo KIM ; Sang Rak BAE ; Yun Chul OK ; Chan Wook SHIN ; Ki Soo LEE ; Geun Soo KONG ; Seo Hee RHA ; Jin Han YOON ; Won Yeol CHO
Korean Journal of Urology 2006;47(10):1130-1132
Fibrous pseudotumor of the testicular tunics is uncommon lesion. They typically arise as painless scrotal masses that may be associated with a hydrocele or history of trauma or infection. Two-thirds involve the tunica vaginalis testis, with infrequent involvement of other scrotal structures. Once excised, these lesions behave in a benign fashion. Typically, these masses are multinodular, but in rare cases they are diffuse, band-like myofibroblastic proliferations that encase the testis. We report here on a case of fibrous pseudotumor of the tunica vaginalis in 76 year-old patient. (Korean J Urol 2006;47:1130-1132)
Aged
;
Humans
;
Myofibroblasts
;
Testis
9.Comparison of Factors Which Influence the Brachial-Ankle Pulse Wave Velocity in Pre- and Postmenopausal Women.
Chan Kyung CHUNG ; Bo Hyon YUN ; Seok Kyo SEO ; Kyung Jin LIM ; Young Eun JEON ; Hyo In YANG ; Kyung Eun LEE ; SiHyun CHO ; Young Sik CHOI ; Byung Seok LEE
The Journal of Korean Society of Menopause 2010;16(2):86-92
OBJECTIVES: The aim of this study was to compare the factors which influence the brachial-ankle pulse wave velocity (baPWV) in pre- and post-menopausal women. We also investigated the association of menopause with arterial stiffness measured by baPWV. METHODS: We performed a retrospective review of 241 postmenopausal women who attended the health promotion center for a routine checkup. Simple and multiple regression analyses were performed to determine the parameters influencing baPWV in pre- and postmenopausal women. Multiple logistic regression analysis was performed to identify the independent parameters related to increased of arterial stiffness. RESULTS: Multiple regression analysis showed that diastolic blood pressure (DBP; beta = 0.402, P = 0.009) was identified as an independent determinant for baPWV in premenopausal women, and DBP (beta = 0.329, P = 0.021) and the neutrophil-to-lymphocyte ratio (NLR; beta = 0.210, P = 0.016) were identified as independent determinants for baPWV in postmenopausal women. The odds ratio (95% CI) of menopause for a high baPWV was 2.666 (1.025~6.937). CONCLUSION: The NLR is associated with arterial stiffness in postmenopausal women. Consequently, inflammation is thought to play a crucial role in increased arterial stiffness in postmenopausal women. Menopause is associated with a high baPWV, suggesting that changes in the concentrations of sex hormones during the menopausal transition may influence arterial stiffness in clinically healthy women.
Blood Pressure
;
Female
;
Gonadal Steroid Hormones
;
Health Promotion
;
Humans
;
Inflammation
;
Logistic Models
;
Menopause
;
Odds Ratio
;
Pulse Wave Analysis
;
Retrospective Studies
;
Vascular Stiffness
10.Comparison of Factors Which Influence the Brachial-Ankle Pulse Wave Velocity in Pre- and Postmenopausal Women.
Chan Kyung CHUNG ; Bo Hyon YUN ; Seok Kyo SEO ; Kyung Jin LIM ; Young Eun JEON ; Hyo In YANG ; Kyung Eun LEE ; SiHyun CHO ; Young Sik CHOI ; Byung Seok LEE
The Journal of Korean Society of Menopause 2010;16(2):86-92
OBJECTIVES: The aim of this study was to compare the factors which influence the brachial-ankle pulse wave velocity (baPWV) in pre- and post-menopausal women. We also investigated the association of menopause with arterial stiffness measured by baPWV. METHODS: We performed a retrospective review of 241 postmenopausal women who attended the health promotion center for a routine checkup. Simple and multiple regression analyses were performed to determine the parameters influencing baPWV in pre- and postmenopausal women. Multiple logistic regression analysis was performed to identify the independent parameters related to increased of arterial stiffness. RESULTS: Multiple regression analysis showed that diastolic blood pressure (DBP; beta = 0.402, P = 0.009) was identified as an independent determinant for baPWV in premenopausal women, and DBP (beta = 0.329, P = 0.021) and the neutrophil-to-lymphocyte ratio (NLR; beta = 0.210, P = 0.016) were identified as independent determinants for baPWV in postmenopausal women. The odds ratio (95% CI) of menopause for a high baPWV was 2.666 (1.025~6.937). CONCLUSION: The NLR is associated with arterial stiffness in postmenopausal women. Consequently, inflammation is thought to play a crucial role in increased arterial stiffness in postmenopausal women. Menopause is associated with a high baPWV, suggesting that changes in the concentrations of sex hormones during the menopausal transition may influence arterial stiffness in clinically healthy women.
Blood Pressure
;
Female
;
Gonadal Steroid Hormones
;
Health Promotion
;
Humans
;
Inflammation
;
Logistic Models
;
Menopause
;
Odds Ratio
;
Pulse Wave Analysis
;
Retrospective Studies
;
Vascular Stiffness