1.An Unusual Adult Complex Congenital Heart Disease.
Wei Chieh LEE ; Yi Wei LEE ; Sarah CHUA
Chonnam Medical Journal 2018;54(3):197-198
No abstract available.
Adult*
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Heart Defects, Congenital*
;
Humans
2.Predictors of Clinical Outcome in Patients with Angiographically Intermediate Lesions with Minimum Lumen Area Less than 4 mm² Using Intravascular Ultrasound in Non-Proximal Epicardial Coronary Artery.
Jumin WON ; Young Joon HONG ; Dae Yong HYUN ; Hyung Ki JEONG ; Sung Sik OH ; Hyung Yoon KIM ; Yongcheol KIM ; Hyukjin PARK ; Min Chul KIM ; Jae Yeong CHO ; Ki Hong LEE ; Doo Sun SIM ; Nam Sik YOON ; Hyun Ju YOON ; Kye Hun KIM ; Hyung Wook PARK ; Ju Han KIM ; Youngkeun AHN ; Myung Ho JEONG ; Jeong Gwan CHO ; Jong Chun PARK
Chonnam Medical Journal 2018;54(3):190-196
We investigated predictors of major adverse cardiac events (MACE) with two years after medical treatment for lesions with angiographically intermediate lesions with intravascular ultrasound (IVUS) minimum lumen area (MLA) <4 mm² in non-proximal epicardial coronary artery. We retrospectively enrolled 104 patients (57 males, 62±10 years) with angiographically intermediate lesions (diameter stenosis 30–70%) with IVUS MLA <4 mm² in the non-proximal epicardial coronary artery with a reference lumen diameter between 2.25 and 3.0 mm. We evaluated the incidences of major adverse cardiovascular events (MACE including death, myocardial infarction, target lesion and target vessel revascularizations, and cerebrovascular accident) two years after medical therapy. During the two-year follow-up, 15 MACEs (14.4%) (including 1 death, 2 myocardial infarctions, 10 target vessel revascularizations, and 2 cerebrovascular accidents) occurred. Diabetes mellitus was more prevalent (46.7% vs. 18.0%, p=0.013) and statins were used less frequently in patients with MACE compared with those without MACE (40.0% vs. 71.9%, p=0.015). Independent predictors of MACEs with two years included diabetes mellitus (odds ratio [OR]=3.41; 95% CI=1.43–8.39, p=0.020) and non-statin therapy (OR=3.11; 95% CI=1.14–6.50, p=0.027). Long-term event rates are relatively low with only medical therapy without any intervention, so the cut-off of IVUS MLA 4 mm² might be too large to be applied for defining significant stenosis. The predictors of long-term MACE were diabetes mellitus and statin therapy in patients with angiographically intermediate lesions in non-proximal epicardial coronary artery.
Constriction, Pathologic
;
Coronary Artery Disease
;
Coronary Vessels*
;
Diabetes Mellitus
;
Follow-Up Studies
;
Humans
;
Hydroxymethylglutaryl-CoA Reductase Inhibitors
;
Incidence
;
Male
;
Myocardial Infarction
;
Plaque, Atherosclerotic
;
Retrospective Studies
;
Ultrasonography*
;
Ultrasonography, Interventional
3.Association between Smoking and Unintentional Injuries among Korean Adults.
Kyu Chul CHOI ; Sun A KIM ; Nu Ri KIM ; Min Ho SHIN
Chonnam Medical Journal 2018;54(3):184-189
Using a cross-sectional representative national survey, we evaluated the relationship between cigarette smoking and unintentional injuries among Korean adults. We used data from the 2009 Korean Community Health Survey. Smoking status was defined as never smokers, ex-smokers, and current smokers. Current smokers were categorized into light daily smokers (1–10 cigarettes/day), moderate daily smokers (11–20 cigarettes/day), or heavy daily smokers (≥21 cigarettes/day). We used the Poisson regression model with a robust variance estimation to estimate prevalence rate ratios (PRR) and corresponding 95% confidence interval (95% CI). After adjusting for demographic characteristics, socioeconomic variables, lifestyle variables, and health status variables, former smokers (PRR, 1.19, 95% CI 1.11–1.28), light daily smokers (PRR 1.22, 95% CI 1.13–1.32), moderate daily smokers (PRR 1.33, 95% CI 1.24–1.42), and heavy daily smokers (PRR 1.40, 95% CI 1.25–1.57) had an increased risk for unintentional injuries compared with non-smokers. In conclusion, cigarette smoking is associated with unintentional injuries in a dose-response manner in Korean adults. The findings suggest that community smoking cessation programs may reduce morbidity and mortality from unintentional injuries.
Adult*
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Cross-Sectional Studies
;
Health Surveys
;
Humans
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Life Style
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Mortality
;
Prevalence
;
Public Health
;
Smoke*
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Smoking Cessation
;
Smoking*
4.Association of Coffee and Tea with Ferritin: Data from the Korean National Health and Nutrition Examination Survey (IV and V).
Eun Suk SUNG ; Chang Kyun CHOI ; Nu Ri KIM ; Sun A KIM ; Min Ho SHIN
Chonnam Medical Journal 2018;54(3):178-183
There have been few studies that have evaluated the association between coffee intake and iron in Korean population. Data from the Korean National Health and Nutrition Examination Survey (IV and V; 2007–2012) was used to investigate the association between coffee and green tea intake and serum ferritin levels in Korean adults. Beverage intake was assessed using a food frequency questionnaire. Multivariate linear regression was performed to evaluate the relationship between coffee and tea intake and serum ferritin levels, after adjusting for age, body mass index, education level, smoking status, alcohol consumption, physical activity, hypertension, diabetes mellitus, and daily iron intake. Coffee intake was negatively related to serum ferritin levels in both sexes. The multivariate-adjusted geometric mean of serum ferritin level was 100.7 ng/mL (95% confidence interval [CI]: 98.2–103.4) in men drinking <1 coffee/day, and 92.2 ng/mL (95% CI: 89.7–94.8) in those drinking ≥3 coffees/day. In women, the equivalent serum ferritin levels were 35.6 ng/mL (95% CI: 34.8–36.4) and 28.9 ng/mL (95% CI: 27.8–30.1). However, green tea intake was not related to serum ferritin levels. In conclusion, coffee consumption was associated with lower serum ferritin levels in Korean adults.
Adult
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Alcohol Drinking
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Beverages
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Body Mass Index
;
Coffee*
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Diabetes Mellitus
;
Drinking
;
Education
;
Female
;
Ferritins*
;
Humans
;
Hypertension
;
Iron
;
Linear Models
;
Male
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Motor Activity
;
Nutrition Surveys*
;
Smoke
;
Smoking
;
Tea*
5.The Predictive Value of Epstein-Barr Virus-Positivity in Patients Undergoing Gastrectomy Followed by Adjuvant Chemotherapy.
Dong Won BAEK ; Byung Woog KANG ; Jong Gwang KIM
Chonnam Medical Journal 2018;54(3):173-177
The present study evaluated the survival impact of standard adjuvant chemotherapy and prognostic differences between Epstein-Barr virus (EBV)-associated gastric cancer (EBVaGC) and EBV-negative gastric cancer (EBVnGC). A total of 276 patients were enrolled according to the following criteria: 1) pathologically diagnosed with primary gastric adenocarcinoma, 2) test results from EBV-encoded RNA in situ hybridization, 3) stage II/III according to the 7th edition of UICC/AJCC staging system for gastric cancer, and 4) postoperative adjuvant chemotherapy. Fifty-nine (21.4%) and 217 (78.6%) patients exhibited EBVaGC and EBVnGC, respectively, while 129 (46.7%) patients were classified as stage II and 147 (53.3%) as stage III. As for adjuvant chemotherapy, 87 (31.5%) patients received capecitabine and oxaliplatin, while 189 (68.5%) received S-1 monotherapy. With a median follow-up duration of 21.3 (6.4-89.0) months, the estimated 3-year disease-free survival (DFS) and overall survival (OS) rates were 74.8% and 83.0%, respectively. In univariate analysis and multivariate analysis using a Cox proportional hazard model including age, gender, stage, Lauren classification, and the type of chemotherapy, EBV-positivity was not significantly associated with DFS (p-value= 0.630) regardless of the type of chemotherapy. Therefore, no association was found between EBV positivity and the survival outcomes in patients with curatively resected gastric cancer who received standard adjuvant chemotherapy.
Adenocarcinoma
;
Capecitabine
;
Chemotherapy, Adjuvant*
;
Classification
;
Disease-Free Survival
;
Drug Therapy
;
Epstein-Barr Virus Infections
;
Follow-Up Studies
;
Gastrectomy*
;
Herpesvirus 4, Human
;
Humans
;
In Situ Hybridization
;
Multivariate Analysis
;
Proportional Hazards Models
;
RNA
;
Stomach Neoplasms
;
Survival Rate
6.Effects of Ivabradine on Left Ventricular Systolic Function and Cardiac Fibrosis in Rat Myocardial Ischemia-Reperfusion Model.
Han Byul KIM ; Young Joon HONG ; Hyuk Jin PARK ; Youngkeun AHN ; Myung Ho JEONG
Chonnam Medical Journal 2018;54(3):167-172
We evaluated the effects of Ivabradine on left ventricle (LV) ejection fraction (EF) and LV infarcted tissue in the rat myocardial ischemia-reperfusion model. Twenty rats were randomly assigned to group 1 (ischemia-reperfusion, no treatment, n=10) and group 2 (ischemia-reperfusion + Ivabradine 10 mg/kg, n=10). Ivabradine was administered for 28 days. Echocardiography was performed at 7 days and at 28 days after the induction of ischemia-reperfusion injury. Cardiac fibrosis induced by ischemia-reperfusion injury was evaluated by Masson's trichrome staining. The infarct size was quantified using the Image J program. At the 28-day follow-up, LVEF was significantly higher (36.02±6.16% vs. 45.72±2.62%, p<0.001) and fractional shortening was significantly higher (15.23±2.84% vs. 20.13±1.38%, p<0.001) in group 2 than group 1. Delta (28 day minus 7 day) EF was significantly higher in group 2 than group 1 (−4.36±3.49% vs. 4.31±5.63%, p<0.001). Also, heart rate (beats/min) was significantly lower in group 2 than group 1 (251.67±25.19 vs. 199.29±31.33, p=0.025). Group 2 had a smaller infarct size (40.70±8.94% vs. 30.19±5.89%, p<0.01) than group 1 at 28-day follow-up. Oral administration of Ivabradine could improve LV systolic function and reduce infarcted tissue area in rat myocardial ischemia-reperfusion model.
Administration, Oral
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Animals
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Echocardiography
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Fibrosis*
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Follow-Up Studies
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Heart Rate
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Heart Ventricles
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Myocardial Ischemia
;
Myocardial Reperfusion Injury
;
Rats*
;
Reperfusion Injury
7.Effects of NADPH Oxidase Inhibitors and Mitochondria-Targeted Antioxidants on Amyloid β₁₋₄₂-Induced Neuronal Deaths in Mouse Mixed Cortical Cultures.
Chonnam Medical Journal 2018;54(3):159-166
The Amyloid β peptide (Aβ) is a main component of senile plaques in Alzheimer's disease. Currently, NADPH oxidase (NOX) and mitochondria are considered as primary sources of ROS induced by Aβ. However, the contribution of NOX and mitochondria to Aβ-induced ROS generation has not been well defined. To delineate the relative involvement of NOX and mitochondria in Aβ-induced ROS generation and neuronal death in mouse cortical cultures, we examined the effect of NOX inhibitors, apocynin and AEBSF, and the mitochondria-targeted antioxidants (MTAs), mitotempol and mitoquinone, on Aβ-induced ROS generation and neuronal deaths. Cell death was assessed by measuring lactate dehydrogenase efflux in bathing media at 24 and 48 hrs after exposure to Aβ₁₋₄₂. Aβ₁₋₄₂ induced dose- and time-dependent neuronal deaths in cortical cultures. Treatment with 20 µM Aβ₁₋₄₂ markedly and continuously increased not only the DHE fluorescence (intracellular ROS signal), but also the DHR123 fluorescence (mitochondrial ROS signal) up to 8 hrs. Treatment with apocynin or AEBSF selectively suppressed the increase in DHE fluorescence, while treatment with mitotempol selectively suppressed the increase in DHR123 fluorescence. Each treatment with apocynin, AEBSF, mitotempol or mitoquinone significantly attenuated the Aβ₁₋₄₂-induced neuronal deaths. However, any combined treatment with apocynin/AEBSF and mitotempol/mitoquinone failed to show additive effects. These findings indicate that 20 µM Aβ₁₋₄₂ induces oxidative neuronal death via inducing mitochondrial ROS as well as NOX activation in mixed cortical cultures, but combined suppression of intracellular and mitochondrial ROS generation fail to show any additive neuroprotective effects against Aβ neurotoxicity.
Alzheimer Disease
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Amyloid beta-Peptides
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Amyloid*
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Animals
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Antioxidants*
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Baths
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Cell Death
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Fluorescence
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L-Lactate Dehydrogenase
;
Mice*
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Mitochondria
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NADP*
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NADPH Oxidase*
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Neurons*
;
Neuroprotective Agents
;
Oxidative Stress
;
Plaque, Amyloid
8.Use of Combined Oral Contraceptives in Perimenopausal Women.
Chonnam Medical Journal 2018;54(3):153-158
While perimenopausal women have low fecundity, they are still capable of becoming pregnant and the majority of pregnancies occurring during perimenopause are unintended pregnancies. Therefore, even during perimenopause, contraception must be used if unintended pregnancies are to be avoided. However, many perimenopausal women and healthcare providers believe that older people should not take combined oral contraceptives (COC) because doing so may be dangerous. However, to date, there is no evidence that taking COC presents an increased risk of cardiovascular events or breast cancer for middle-aged women as compared to other age groups, and in their recommendations, the Centers for Disease Control and Prevention (CDC) also do not list age itself as a contraindication for COC. Perimenopausal women often experience menstrual irregularity, heavy menstrual bleeding, and vasomotor symptoms. Taking COCs can help control these symptoms and significantly reduce the risk of ovarian cancer, endometrial cancer, and colorectal cancer. The objective of the present review is to examine the usage methods of COC among perimenopausal women and the health issues that may arise from taking COC in perimenopausal women.
Breast Neoplasms
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Centers for Disease Control and Prevention (U.S.)
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Colorectal Neoplasms
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Contraception
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Contraceptives, Oral, Combined*
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Endometrial Neoplasms
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Female
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Fertility
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Health Personnel
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Hemorrhage
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Humans
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Ovarian Neoplasms
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Perimenopause
;
Pregnancy
;
Risk Factors
9.Role of PET/CT in the Evaluation of Aortic Disease.
Chonnam Medical Journal 2018;54(3):143-152
Positron emission tomography (PET) /computed tomography (CT) has been established as a standard imaging modality in the evaluation of malignancy. Although PET/CT has played a major role in the management of oncology patients, its clinical use has also increased for various disorders other than malignancy. Growing evidence shows that PET/CT images have many advantages in aortic disease as well. This review article addresses the potential role of PET/CT in diseases involving the aorta, emphasizing its usefulness with regard to acute thoracic aortic syndromes, aortic aneurysm, atherosclerotic lesions, aortitis and aortic tumors.
Aneurysm
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Aorta
;
Aortic Aneurysm
;
Aortic Diseases*
;
Aortitis
;
Atherosclerosis
;
Humans
;
Positron-Emission Tomography
;
Positron-Emission Tomography and Computed Tomography*
10.Melanoma Cell Death Mechanisms.
Lindsey BROUSSARD ; Amanda HOWLAND ; Sunhyo RYU ; Kyungsup SONG ; David NORRIS ; Cheryl A ARMSTRONG ; Peter I SONG
Chonnam Medical Journal 2018;54(3):135-142
Over recent years, several new molecular and immunogenic therapeutic approaches to melanoma treatment have been approved and implemented in clinical practice. Mechanisms of resistance to these new therapies have become a major problem. Mutation-specific pharmacotherapy can result in simultaneous emergence of resistant clones at many separate body sites despite an initially positive therapeutic response. Additionally, treatments aimed at inducing apoptosis are subject to resistance due to escape through other known mechanisms of regulated cell death (RCD). In this review, we discuss the complexity in pharmacological manipulation of melanoma with c-Kit, BRAF, MEK, and/or mTOR mutant cell lines. This study also addresses melanoma evasion of cell death through modalities of RCD such as apoptosis, autophagy, and necroptosis. This study also examines new combination therapies which have been approved to target both cell cycle dysregulation and cell death pathways. Lastly, we recognize the importance of immunomodulation though manipulation of the body's natural killing mechanisms with CTLA4, PD1, and CSF1 inhibition. As we begin to recognize tumor cell activation of alternate pathways, evasion of programmed cell death, and manipulation of the tumor microenvironment, it is increasingly important to grasp the complexity of personalized therapy in melanoma treatment.
Apoptosis
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Autophagy
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Cell Cycle
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Cell Death*
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Cell Line
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Clone Cells
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Drug Therapy
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Hand Strength
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Homicide
;
Humans
;
Immunomodulation
;
Melanoma*
;
TOR Serine-Threonine Kinases
;
Tumor Microenvironment
;
United Nations