1.Apolipoprotein B Is Related to Metabolic Syndrome Independently of Low Density Lipoprotein Cholesterol in Patients with Type 2 Diabetes.
Younghyup LIM ; Soyeon YOO ; Sang Ah LEE ; Sang Ouk CHIN ; Dahee HEO ; Jae Cheol MOON ; Shinhang MOON ; Kiyoung BOO ; Seong Taeg KIM ; Hye Mi SEO ; Hyeyoung JWA ; Gwanpyo KOH
Endocrinology and Metabolism 2015;30(2):208-215
BACKGROUND: Increased low density lipoprotein cholesterol (LDL-C) level and the presence of metabolic syndrome (MetS) are important risk factors for cardiovascular disease (CVD) in type 2 diabetes mellitus (T2DM). Recent studies demonstrated apolipoprotein B (apoB), a protein mainly located in LDL-C, was an independent predictor of the development of CVD especially in patients with T2DM. The aim of this study was to investigate the relationship between apoB and MetS in T2DM patients. METHODS: We analyzed 912 patients with T2DM. Fasting blood samples were taken for glycated hemoglobin, high-sensitivity C-reactive protein, total cholesterol, triglyceride (TG), high density lipoprotein cholesterol, LDL-C, and apoB. MetS was defined by the modified National Cholesterol Education Program Adult Treatment Panel III criteria. We performed a hierarchical regression analysis with apoB as the dependent variable. Age, sex, the number of components of MetS and LDL-C were entered at model 1, the use of lipid-lowering medications at model 2, and the individual components of MetS were added at model 3. RESULTS: Seventy percent of total subjects had MetS. ApoB level was higher in subjects with than those without MetS (104.5+/-53.3 mg/dL vs. 87.7+/-33.7 mg/dL, P<0.01) even after adjusting for LDL-C. ApoB and LDL-C were positively correlated to the number of MetS components. The hierarchical regression analysis showed that the increasing number of MetS components was associated with higher level of apoB at step 1 and step 2 (beta=0.120, P<0.001 and beta=0.110, P<0.001, respectively). At step 3, TG (beta=0.116, P<0.001) and systolic blood pressure (beta=0.099, P<0.05) were found to significantly contribute to apoB. CONCLUSION: In patients with T2DM, apoB is significantly related to MetS independently of LDL-C level. Of the components of MetS, TG, and systolic blood pressure appeared to be determinants of apoB.
Adult
;
Apolipoproteins B
;
Apolipoproteins*
;
Blood Pressure
;
C-Reactive Protein
;
Cardiovascular Diseases
;
Cholesterol
;
Cholesterol, HDL
;
Cholesterol, LDL*
;
Diabetes Mellitus, Type 2
;
Education
;
Fasting
;
Hemoglobin A, Glycosylated
;
Humans
;
Risk Factors
;
Triglycerides
2.Associations between Dietary Acid-Base Load and Cardiometabolic Risk Factors in Adults: The Tehran Lipid and Glucose Study.
Zahra BAHADORAN ; Parvin MIRMIRAN ; Hadise KHOSRAVI ; Fereidoun AZIZI
Endocrinology and Metabolism 2015;30(2):201-207
BACKGROUND: In this study we investigated the associations of dietary acid-base load, identified by potential renal acid load (PRAL) and protein to potassium (Pro:K) ratio, with cardiometabolic risk factors in Tehranian adults. METHODS: A cross-sectional study was conducted within the framework of the fourth phase of the Tehran Lipid and Glucose Study (2009 to 2011) on 5,620 men and women aged 19 to 70 years. Dietary data were collected by a trained dietitian using a validated, 147-food item, semi-quantitative food frequency questionnaire, and dietary PRAL and Pro:K ratio were calculated. Multiple linear regression models with adjustment for potential confounding variables were used to evaluate the associations of dietary acid-base load with anthropometric measures, blood pressure, serum triglycerides, high density lipoprotein cholesterol (HDL-C), serum creatinine, and fasting blood glucose. RESULTS: The mean+/-SD age of the participants was 39.8+/-12.8 years and 54% of participants were women. Mean+/-SD PRAL was -22.0+/-29.1; mean PRAL was -15.6 in men and -26.8 in women. Dietary PRAL was associated with weight (beta=0.098, P<0.001), waist circumference (beta=0.062, P<0.01), serum triglycerides (beta=0.143, P<0.01), HDL-C (beta=-0.11, P<0.01), diastolic blood pressure (beta=0.062, P<0.01), and serum creatinine (beta=0.142, P<0.001). Pro:K ratio was associated with weight (beta=0.055, P<0.001), waist circumference (beta=0.04, P<0.01), serum HDL-C (beta=-0.06, P<0.01), serum triglycerides (beta=0.03, P<0.05), diastolic blood pressure (beta=0.026, P<0.05), and serum creatinine (beta=0.07, P<0.01). CONCLUSION: A more acidic dietary acid-base load may be a risk factor for the development of metabolic disorders.
Adult*
;
Blood Glucose
;
Blood Pressure
;
Cholesterol, HDL
;
Confounding Factors (Epidemiology)
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Creatinine
;
Cross-Sectional Studies
;
Fasting
;
Female
;
Glucose*
;
Humans
;
Linear Models
;
Male
;
Nutritionists
;
Potassium
;
Risk Factors*
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Triglycerides
;
Waist Circumference
;
Surveys and Questionnaires
3.Anaplastic Thyroid Cancer: Experience of the Philippine General Hospital.
Tom Edward LO ; Cecilia Alegado JIMENO ; Elizabeth PAZ-PACHECO
Endocrinology and Metabolism 2015;30(2):195-200
BACKGROUND: Anaplastic thyroid cancer (ATC) is a rare type of thyroid malignancy and one of the most aggressive solid tumors, responsible for between 14% and 50% of the total annual mortality associated with thyroid cancer. METHODS: A retrospective study was made of all ATC cases diagnosed by biopsy in the Philippine General Hospital between 2008 and 2013. RESULTS: A total of 15 patients were identified, with a median age at diagnosis of 63 years. All tumors were at least 6 cm in size upon diagnosis. All patients had a previous history of thyroid pathology, presenting with an average duration of 11 years. Eleven patients presented with cervical lymphadenopathies, whereas seven exhibited signs of distant metastases, for which the lungs appeared to be the most common site. More than 70% of the patients presented with a rapidly growing neck mass, leading to airway obstruction. Only three patients were treated using curative surgery; the majority received palliative and supportive forms of treatment. In addition, only three patients were offered radiotherapy. Chemotherapy was not offered to any patient. Only two patients were confirmed to still be alive during the study period. The median survival time for the other patients was 3 months; in the majority of cases the patient died within the first year following diagnosis. CONCLUSION: Our experience with ATC demonstrated concordance with other institutions with respect to current clinical profile, presentation, and prognosis. An absence of distant metastases and lymph node involvement was associated with improved survival outcomes, whereas age at diagnosis and tumor size did not affect survival. Curative surgery offers the most effective means of prolonging survival. Radiotherapy and chemotherapy in combination with surgery represents a promising treatment strategy.
Airway Obstruction
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Biopsy
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Diagnosis
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Drug Therapy
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Hospitals, General*
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Humans
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Lung
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Lymph Nodes
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Mortality
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Neck
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Neoplasm Metastasis
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Pathology
;
Philippines
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Prognosis
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Radiotherapy
;
Retrospective Studies
;
Thyroid Gland
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Thyroid Neoplasms*
4.Comparison of Serum Adipocytokine Levels according to Metabolic Health and Obesity Status.
Tae Hoon LEE ; Won Seon JEON ; Ki Joong HAN ; Shin Yeoung LEE ; Nam Hee KIM ; Hyun Beom CHAE ; Choel Min JANG ; Kyung Mo YOO ; Hae Jung PARK ; Min Kyung LEE ; Se Eun PARK ; Hyung Geun OH ; Cheol Young PARK ; Won Young LEE ; Ki Won OH ; Sung Woo PARK ; Eun Jung RHEE
Endocrinology and Metabolism 2015;30(2):185-194
BACKGROUND: Metabolic health is an emerging concept that is highly correlated with various metabolic complications, and adipocytokines have been causally linked to a wide range of metabolic diseases. Thus, this study compared serum adipocytokine levels according to metabolic health and obesity status. METHODS: Four hundred and fifty-six nondiabetic subjects (mean age, 40.5 years) were categorized into four groups according to metabolic health and obesity status: metabolically healthy nonobese (MHNO), metabolically healthy obese (MHO), metabolically unhealthy nonobese (MUHNO), and metabolically unhealthy obese (MUHO). Being metabolically healthy was defined as the presence of fewer than two of the following five metabolic abnormalities: high blood pressure, high fasting blood glucose, high triglyceride, low high density lipoprotein cholesterol, and being in the highest decile of the homeostatic model assessment of insulin resistance index. Obesity status was assessed using body mass index (BMI), with obesity defined as a BMI higher than 25 kg/m2. Levels of serum interleukin-6 (IL-6), monocyte chemoattractant protein-1 (MCP-1), tumor necrosis factor alpha (TNF-alpha), and adipocyte fatty acid binding protein (A-FABP) were also evaluated. RESULTS: Of the 456 subjects, 247 (54.2%) were in the MHNO group, 66 (14.5%) were in the MHO group, 66 (14.5%) were in the MUHNO group, and 77 (16.9%) were in the MUHO group. There were no significant differences in IL-6 or MCP-1 levels among the groups, but levels of TNF-alpha and A-FABP were significantly higher in the MUHNO group compared to the MHNO group. CONCLUSION: High TNF-alpha and A-FABP levels are significantly associated with metabolically unhealthiness in nonobese Korean individuals.
Adipocytes
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Adipokines
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Blood Glucose
;
Body Mass Index
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Carrier Proteins
;
Chemokine CCL2
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Cholesterol, HDL
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Fasting
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Hypertension
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Insulin Resistance
;
Interleukin-6
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Metabolic Diseases
;
Obesity*
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Triglycerides
;
Tumor Necrosis Factor-alpha
5.Exendin-4 Inhibits the Expression of SEPP1 and Fetuin-A via Improvement of Palmitic Acid-Induced Endoplasmic Reticulum Stress by AMPK.
Jinmi LEE ; Seok Woo HONG ; Se Eun PARK ; Eun Jung RHEE ; Cheol Young PARK ; Ki Won OH ; Sung Woo PARK ; Won Young LEE
Endocrinology and Metabolism 2015;30(2):177-184
BACKGROUND: Selenoprotein P (SEPP1) and fetuin-A, both circulating liver-derived glycoproteins, are novel biomarkers for insulin resistance and nonalcoholic fatty liver disease. However, the effect of exendin-4 (Ex-4), a glucagon-like peptide-1 receptor agonist, on the expression of hepatokines, SEPP1, and fetuin-A, is unknown. METHODS: The human hepatoma cell line HepG2 was treated with palmitic acid (PA; 0.4 mM) and tunicamycin (tuni; 2ug/ml) with or without exendin-4 (100 nM) for 24 hours. The change in expression of PA-induced SEPP1, fetuin-A, and endoplasmic reticulum (ER) stress markers by exendin-4 treatment were evaluated using quantitative real-time reverse transcription polymerase chain reaction and Western blotting. Transfection of cells with AMP-activated protein kinase (AMPK) small interfering RNA (siRNA) was performed to establish the effect of exendin-4-mediated AMPK in the regulation of SEPP1 and fetuin-A expression. RESULTS: Exendin-4 reduced the expression of SEPP1, fetuin-A, and ER stress markers including PKR-like ER kinase, inositol-requiring kinase 1alpha, activating transcription factor 6, and C/EBP homologous protein in HepG2 cells. Exendin-4 also reduced the expression of SEPP1 and fetuin-A in cells treated with tunicamycin, an ER stress inducer. In cells treated with the AMPK activator 5-aminoidazole-4-carboxamide ribonucleotide (AICAR), the expression of hepatic SEPP1 and fetuin-A were negatively related by AMPK, which is the target of exendin-4. In addition, exendin-4 treatment did not decrease SEPP1 and fetuin-A expression in cells transfected with AMPK siRNA. CONCLUSION: These data suggest that exendin-4 can attenuate the expression of hepatic SEPP1 and fetuin-A via improvement of PA-induced ER stress by AMPK.
Activating Transcription Factor 6
;
alpha-2-HS-Glycoprotein*
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AMP-Activated Protein Kinases*
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Blotting, Western
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Carcinoma, Hepatocellular
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Cell Line
;
Endoplasmic Reticulum
;
Endoplasmic Reticulum Stress*
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Fatty Liver
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Glucagon-Like Peptide 1
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Glycoproteins
;
Hep G2 Cells
;
Humans
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Insulin Resistance
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Palmitic Acid
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Phosphotransferases
;
Polymerase Chain Reaction
;
Reverse Transcription
;
RNA, Small Interfering
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Selenoprotein P
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Transfection
;
Tunicamycin
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Biomarkers
;
Glucagon-Like Peptide-1 Receptor
6.Adipokine Profiles and Metabolic Health.
Endocrinology and Metabolism 2015;30(2):175-176
No abstract available.
Adipokines*
7.Clinical Implications of Glucose Variability: Chronic Complications of Diabetes.
Endocrinology and Metabolism 2015;30(2):167-174
Glucose variability has been identified as a potential risk factor for diabetic complications; oxidative stress is widely regarded as the mechanism by which glycemic variability induces diabetic complications. However, there remains no generally accepted gold standard for assessing glucose variability. Representative indices for measuring intraday variability include calculation of the standard deviation along with the mean amplitude of glycemic excursions (MAGE). MAGE is used to measure major intraday excursions and is easily measured using continuous glucose monitoring systems. Despite a lack of randomized controlled trials, recent clinical data suggest that long-term glycemic variability, as determined by variability in hemoglobin A1c, may contribute to the development of microvascular complications. Intraday glycemic variability is also suggested to accelerate coronary artery disease in high-risk patients.
Coronary Artery Disease
;
Diabetes Complications
;
Glucose*
;
Humans
;
Oxidative Stress
;
Risk Factors
8.New Directions in Chronic Disease Management.
Hun Sung KIM ; Jae Hyoung CHO ; Kun Ho YOON
Endocrinology and Metabolism 2015;30(2):159-166
A worldwide epidemic of chronic disease, and complications thereof, is underway, with no sign of abatement. Healthcare costs have increased tremendously, principally because of the need to treat chronic complications of non-communicable diseases including cardiovascular disease, blindness, end-stage renal disease, and amputation of extremities. Current healthcare systems fail to provide an appropriate quality of care to prevent the development of chronic complications without additional healthcare costs. A new paradigm for prevention and treatment of chronic disease and the complications thereof is urgently required. Several clinical studies have clearly shown that frequent communication between physicians and patients, based on electronic data transmission from medical devices, greatly assists in the management of chronic disease. However, for various reasons, these advantages have not translated effectively into real clinical practice. In the present review, we describe current relevant studies, and trends in the use of information technology for chronic disease management. We also discuss limitations and future directions.
Amputation
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Blindness
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Cardiovascular Diseases
;
Chronic Disease*
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Delivery of Health Care
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Diabetes Mellitus
;
Extremities
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Health Care Costs
;
Humans
;
Kidney Failure, Chronic
9.Genetic Studies on Diabetic Microvascular Complications: Focusing on Genome-Wide Association Studies.
Soo Heon KWAK ; Kyong Soo PARK
Endocrinology and Metabolism 2015;30(2):147-158
Diabetes is a common metabolic disorder with a worldwide prevalence of 8.3% and is the leading cause of visual loss, end-stage renal disease and amputation. Recently, genome-wide association studies (GWASs) have identified genetic risk factors for diabetic microvascular complications of retinopathy, nephropathy, and neuropathy. We summarized the recent findings of GWASs on diabetic microvascular complications and highlighted the challenges and our opinion on future directives. Five GWASs were conducted on diabetic retinopathy, nine on nephropathy, and one on neuropathic pain. The majority of recent GWASs were underpowered and heterogeneous in terms of study design, inclusion criteria and phenotype definition. Therefore, few reached the genome-wide significance threshold and the findings were inconsistent across the studies. Recent GWASs provided novel information on genetic risk factors and the possible pathophysiology of diabetic microvascular complications. However, further collaborative efforts to standardize phenotype definition and increase sample size are necessary for successful genetic studies on diabetic microvascular complications.
Amputation
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Diabetic Retinopathy
;
Genetics
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Genome-Wide Association Study*
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Kidney Failure, Chronic
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Neuralgia
;
Phenotype
;
Prevalence
;
Risk Factors
;
Sample Size
10.Trends in the Diabetes Epidemic in Korea.
Endocrinology and Metabolism 2015;30(2):142-146
Diabetes mellitus is a leading cause of mortality and increased disability-adjusted life years worldwide. In Korea, the prevalence of diabetes increased from 8.6% to 11.0% in 2001 to 2013 and the prevalence of adult obesity, which is the most important risk factor of diabetes, increased from 29.2% to 31.8% during the same period. There has been a dramatic increase in the number of obese Koreans with diabetes in recent decades and the prevalence of diabetes in people aged 40 years and older also increased in 2001 to 2013. Nevertheless, the mean age at the first diagnosis of diabetes was very similar for men in 2005 and 2013, while the mean age for women decreased slightly. There is an inverse linear relationship between body mass index and age at the diagnosis of diabetes among those who are newly diagnosed. Accordingly, the prevalence of diabetes is increasingly shifting to younger individuals and those who are obese. Therefore, public efforts should focus on healthy lifestyle changes, primary prevention measures, screening for the early detection of diabetes, and long-term management.
Adult
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Body Mass Index
;
Diabetes Mellitus
;
Diagnosis
;
Epidemiology
;
Female
;
Humans
;
Korea
;
Life Style
;
Male
;
Mass Screening
;
Mortality
;
Obesity
;
Prevalence
;
Primary Prevention
;
Risk Factors