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Tae Seo Sohn  (Sohn TS) 15 Articles
Association of Spot Urine Albumin-to-Creatinine Ratio and 24 Hour-Collected Urine Albumin Excretion Rate in Patients with Type 2 Diabetes Mellitus.
Jee In Lee, Hyuk Sang Kwon, Su Jin Oh, Jung Min Lee, Sang Ah Chang, Bong Yun Cha, Hyun Shik Son, Tae Seo Sohn
Korean Diabetes J. 2009;33(4):299-305.   Published online August 1, 2009
DOI: https://doi.org/10.4093/kdj.2009.33.4.299
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BACKGROUND
Measuring urine albumin in diabetic patients is an important screening test to identify those individuals at high risk for cardiovascular disease and the progression of kidney disease. Recently, spot urine albumin-to-creatinine ratio (ACR) has replaced 24 hour-collected urine albumin excretion rate (AER) as a screening test for microalbuminuria given its comparative simplicity. The purpose of the current study was to evaluate the degree of correlation between AER and ACR in the normal, microalbuminuric and macroalbuminuric ranges, and to identify the lower limits of ACR for both genders. METHODS: A total of 310 type 2 diabetics admitted to one center were enrolled in the present study. Following the collection of a spot urine sample, urine was collected for 24 hours and albumin content was measured in both specimens. RESULTS: Mean patient age was 60.2 years. A total of 25.4% had microalbuminuria and 15.8% had macroalbuminuria. The data revealed a strongly positive correlation between AER and ACR across all ranges of albuminuria (R = 0.8). The cut-off value of ACR for 30 mg/day of AER by the regression equation was 24 microgram/mg for men, 42 microgram/mg for women and 31.2 microgram/mg for all patients. The diagnostic performance expressed as the area under the curve (AUC) was 0.938 (95% CI, 0.911-0.965) for ACR. ACR revealed a sensitivity of 84% and specificity of 84%, when a cut-off value of 31.2 microgram/mg was employed. CONCLUSION: ACR was highly correlated with AER, particularly in the range of microalbuminuria. The gender combined cut-off value of ACR in type 2 diabetic patients was determined to be 31.2 microg/mg However, additional studies of large outpatient populations, as opposed to the inpatient population used in the present study, are required to confirm the utility of this value.
The Changes of Central Aortic Pulse Wave Analysis in Metabolic Syndrome.
Jee In Lee, Tae Seo Sohn, Hyuk Sang Kwon, Jung Min Lee, Sang Ah Chang, Bong Yun Cha, Hyun Shik Son
Korean Diabetes J. 2008;32(6):522-528.   Published online December 1, 2008
DOI: https://doi.org/10.4093/kdj.2008.32.6.522
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AbstractAbstract PDF
The metabolic syndrome (MS) has been characterized as a cluster of risk factors that includes dyslipidemia, hypertension, glucose intolerance and central obesity. This syndrome increases the risk of cardiovascular disease. Augmentation index (AIx), a composite of wave reflection form medium-sized muscular arteries is related to the development of coronary artery disease. The aim of this study is to examine the change on central aortic waveforms in subjects between patients with metabolic syndrome and normal subjects. Using the non-invasive technique of pulse wave analysis by applantation tonometry, we investigated central aortic waveforms in 45 patients with MS and 45 matched controls. The MS was defined by NCEP-ATP III criteria. Age did not differ between the two groups. AIx was significantly elevated in patinets with MS compared with controls (21.91 +/- 11.41% vs 18.14 +/- 11.07%; P < 0.01). Subendocardial viability ratio (SEVR) (158.09 +/- 28.69 vs 167.09 +/- 30.06; P < 0.01) was significantly decreased in patients with MS compared with controls. Only the fasting glucose (r = 0.317, P = 0.03) among the components of MS and age (r = 0.424, P = 0.004) had a positive correlation with AIx. AIx increased as the number of MS components increased. These results show that the MS increased systemic arterial stiffness. Age and fasting blood glucose are independent risk factors of arterial stiffness in MS. The individual MS components, except for fasting blood glucose, do not affect arterial stiffness independently. But the clustering of MS components might interact to synergistically affect arterial stiffness.

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  • Arterial Stiffness by Aerobic Exercise Is Related with Aerobic Capacity, Physical Activity Energy Expenditure and Total Fat but not with Insulin Sensitivity in Obese Female Patients with Type 2 Diabetes
    Ji Yeon Jung, Kyung Wan Min, Hee Jung Ahn, Hwi Ryun Kwon, Jae Hyuk Lee, Kang Seo Park, Kyung Ah Han
    Diabetes & Metabolism Journal.2014; 38(6): 439.     CrossRef
  • The Changes of the body composition and vascular flexibility According to Pilates mat Exercise during 12 weeks in elderly women
    Ji-Eun Jang, Yong-Kwon Yoo, Byung-Hoon Lee
    The Journal of the Korea institute of electronic communication sciences.2013; 8(11): 1777.     CrossRef
  • Traditional East Asian Medical Pulse Diagnosis: A Preliminary Physiologic Investigation
    Kylie A. O'Brien, Stephen Birch, Estelle Abbas, Paul Movsessian, Michael Hook, Paul A. Komesaroff
    The Journal of Alternative and Complementary Medicine.2013; 19(10): 793.     CrossRef
The Efficacy of Fixed Dose Rosiglitazone and Metformin Combination Therapy in Poorly Controlled Subjects with Type 2 Diabetes Mellitus.
Tae Seo Sohn, Jee in Lee, In Ju Kim, Kyung Wan Min, Hyun Shik Son
Korean Diabetes J. 2008;32(6):506-512.   Published online December 1, 2008
DOI: https://doi.org/10.4093/kdj.2008.32.6.506
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AbstractAbstract PDF
BACKGROUND
Obese type 2 diabetic subjects are recently increasing in Korea, indicating the importance of insulin resistance rather than insulin secretory defects in the pathophysioloy of type 2 diabetes. The purpose of this study is to evaluate the safety and efficacy of fixed dose rosiglitazone/metformin combination therapy in poorly controlled subjects with type 2 diabetes mellitus. METHODS: 12 type 2 diabetic subjects who had a HbA1c > 11% or fasting plasma glucose > 15 mmol/L were included. After a 2 week screening period, the subjected took the fixed does rosiglitazone/metformin for 24 weeks. The treatment with rosiglitazone/metformin began at week 0 with an initial dose of 4 mg/1000 mg and, unless tolerability issues arose, subjects would be increased to 6 mg/1500 mg at week 4 and at week 8 to the maximum dose of 8 mg/2000 mg. The primary object of this study was to characterize the magnitude of HbA1c reduction from baseline after 24 weeks of rosiglitazone and metformin treatment in poorly controlled type 2 diabetics. RESULTS: The mean age of the subjects was 48.9 +/- 10.6 years old, body mass index was 25.0 +/- 3.5 kg/m2, HbA1c was 12.0 +/- 1.0%, and fasting plasma glucose was 16.3 +/- 3.1 mmol/L. HbA1c was reduced to 7.54 +/- 1.45% and fasting plasma glucose reduced to 7.96 +/- 2.38 mmol/L at week 24. The proportion of HbA1c responder who showed the reduction from baseline of > or = 0.7% or HbA1c < 7% was 11 among 12 subjects (91.7%). 41% of the subjects (5 among 12 subjects) achieved HbA1c level < 7.0% and 75% (9 among 12 subjects) achieved HbA1c level < 8.0%. CONCLUSIONS: In this study, rosiglitazone and metformin combination therapy was effective in glycemic control in poorly controlled subjects with type 2 diabetes mellitus.
The Effect of Rosiglitazone and Metformin Therapy, as an Initial Therapy, in Patients with Type 2 Diabetes Mellitus.
Tae Seo Sohn, Jee In Lee, In Ju Kim, Kyung Wan Min, Hyun Shik Son
Korean Diabetes J. 2008;32(5):445-452.   Published online October 1, 2008
DOI: https://doi.org/10.4093/kdj.2008.32.5.445
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AbstractAbstract PDF
BACKGROUND
Type 2 diabetes is usually preceded by a long and clinically silent period of increasing insulin resistance. The purpose of this study is to demonstrate that rosiglitazone and metformin fixed-dose combination therapy (RSG/MET) will safely and effectively control glycemia as a first line of oral therapy, better than rosiglitazone (RSG) or metformin (MET) monotherapy in Korean type 2 diabetes patients. METHODS: This study was a 32-week, multicenter, randomized, double-blind study. Twenty-seven type 2 diabetes patients (males 14; females 13) were included and randomly divided into the rosiglitazone, metformin group, or rosiglitazone /metformin combination groups. The primary objective of this study was to determine the change in HbA1c from baseline (week 0) to week 32. The secondary end-points were to determine changes in fasting plasma glucose (FPG) and homeostasis model assessment insulin resistance (HOMA-IR), from baseline to week 32. Other cardiovascular risk markers were also assessed. RESULTS: At week 32, there were significant reductions in HbA1c and FPG, in all three treatment groups. There was no statistical difference in HbA1c among the three groups, but the decrease in FPG in the RSG/MET group was statistically significant compared to the MET group (P < 0.05). RSG/MET significantly reduced HOMA-IR at week 32 compared to baseline, but there was no difference among the three groups. RSG/MET significantly decreased high-sensitive C-reactive protein (hs-CRP) value at week 32, compared to baseline. There were increases in adiponectin from baseline to week 32 in the RSG and RSG/MET groups, and the increase in the RSG/MET group was statistically significant compared to that of the MET group (P < 0.05). At week 32, there was a significant decrease in plasminogen activator inhibitor-1 (PAI-1) in all three treatment groups, but no statistically significant difference among them. The RSG/MET group significantly decreased in terms of urinary albumin-creatinine ratio at week 32, compared to baseline. CONCLUSIONS: In this study, rosiglitazone and metformin combination therapy was effective in glycemic control as an initial therapy, and it improved cardiovascular risk markers in Korean type 2 diabetes patients.

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  • Rosiglitazone metformin adduct inhibits hepatocellular carcinoma proliferation via activation of AMPK/p21 pathway
    Yuyang Liu, Xiangnan Hu, Xuefeng Shan, Ke Chen, Hua Tang
    Cancer Cell International.2019;[Epub]     CrossRef
  • Comparison of the Efficacy of Glimepiride, Metformin, and Rosiglitazone Monotherapy in Korean Drug-Naïve Type 2 Diabetic Patients: The Practical Evidence of Antidiabetic Monotherapy Study
    Kun Ho Yoon, Jeong Ah Shin, Hyuk Sang Kwon, Seung Hwan Lee, Kyung Wan Min, Yu Bae Ahn, Soon Jib Yoo, Kyu Jeung Ahn, Sung Woo Park, Kwan Woo Lee, Yeon Ah Sung, Tae Sun Park, Min Seon Kim, Yong Ki Kim, Moon Suk Nam, Hye Soon Kim, Ie Byung Park, Jong Suk Par
    Diabetes & Metabolism Journal.2011; 35(1): 26.     CrossRef
Diabetic Nephropathy and Glomerular Filtration Rate.
Tae Seo Sohn
Korean Diabetes J. 2008;32(3):182-184.   Published online June 1, 2008
DOI: https://doi.org/10.4093/kdj.2008.32.3.182
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AbstractAbstract PDF
No abstract available.
Clinical Characteristics and Outcomes of Diabetic Ketoacidosis at a Single Institution.
Jee In Lee, Tae Seo Sohn, Sang Ah Chang, Jung Min Lee, Bong Yun Cha, Ho Young Son, Hyun Shik Son
Korean Diabetes J. 2008;32(2):165-170.   Published online April 1, 2008
DOI: https://doi.org/10.4093/kdj.2008.32.2.165
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AbstractAbstract PDF
AIMS: The aim of this study was to describe the clinical characteristics and outcomes of diabetic ketoacidosis (DKA) in Hospital for past 6 years. METHODS: We reviewed the retrospective medical records of all patients admitted with a diagnosis of DKA from 2000 to 2005 in Uijeongbu St. Mary's Hospital. Clinical characteristics including precipitating factors and hospital mortality were analyzed. RESULTS: Seventy-eight patients (78 episodes) fulfilled criteria for inclusion in this study. Their mean age was 41.89 years. 66 episodes had a prior history of diabetes but DKA was the initial presentation in 12 episodes. 24.4% were on no treatment, 14.1% were using oral hypoglycemic agents and 53.8% were on insulin. Poor glycemic control were the most common precipitating factor (56.4%). There were 3 deaths. CONCLUSION: Our report is similar with past reports of DKA in Korea. but it is different that poor glycemic control is most common precipitating factor and mortality rate are lower than past reports. This observation suggests that many cases of DKA can be prevented by better access to medical care, proper education, and effective communication with a health care provider.

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  • Clinical and Laboratory Characteristics of Pediatric Diabetic Ketoacidosis: A Single-Center Study
    Iee Ho Choi, Min Sun Kim, Pyoung Han Hwang, Dae-Yeol Lee
    The Journal of Korean Diabetes.2017; 18(3): 193.     CrossRef
  • Clinical and Biochemical Characteristics of Elderly Patients With Hyperglycemic Emergency State at a Single Institution
    Yun Jae Shin, Dae In Kim, Dong Won Lee, Beung Kwan Jeon, Jung Geun Ji, Jung Ah Lim, Young Jung Cho, Hong Woo Nam
    Annals of Geriatric Medicine and Research.2016; 20(4): 185.     CrossRef
  • Evaluation of the Clinical Significance of Ketonuria
    Hae-Won Jung, Ile-Kyu Park
    Laboratory Medicine Online.2012; 2(1): 15.     CrossRef
  • A Case of Severe Diabetic Ketoacidosis in a Child with Type 2 Diabetes
    Jaesung Yu, Hyunju Jin, Joontae Ko, Hoseok Kang
    Journal of Korean Society of Pediatric Endocrinology.2011; 16(1): 46.     CrossRef
  • Clinical Characteristics of Patients with Hyperglycemic Emergency State Accompanying Rhabdomyolysis
    Soo Kyoung Kim, Jong Ha Baek, Kyeong Ju Lee, Jong Ryeal Hahm, Jung Hwa Jung, Hee Jin Kim, Ho-Su Kim, Sungsu Kim, Soon Il Chung, Tae Sik Jung
    Endocrinology and Metabolism.2011; 26(4): 317.     CrossRef
The Differences of Circulating Adiponectin Levels and Multimerization According to Obesity in Type 2 Diabetes Mellitus of Men.
Sang Ah Chang, Ho Young Son, Jung Min Lee, Tae Seo Sohn, Hyuk Sang Kwon, Hyun Shik Son, Kun Ho Yoon, Hee Seung Kim, Bong Yun Cha, Kwang Woo Lee
Korean Diabetes J. 2007;31(3):243-252.   Published online May 1, 2007
DOI: https://doi.org/10.4093/jkda.2007.31.3.243
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BACKGROUND
Adiponectin is adipose tissue derived hormone, which has been shown to play an important role in the regulation of glucose and lipid metabolism. Low adiponectin levels are associated with obesity and diabetes and coronary artery disease. In addition to adiponectin level, the adiponectin multimerization and its ratio to total adiponectin have also affect on metabolic risk factors and insulin resistance. However, the adiponectin multimerization pattern in type 2 diabetes of Korean has not been established. We investigated adiponectin levels and adiponectin multimerization pattern according to obesity in type 2 diabetes males of Korean. METHOD: The subjects of this study were 86 of diabetes patients and 89 of control subjects whose fasting blood glucose was below 110 mg/dL. They were divided into two subgroup, non-obese and obese, according to BMI (non-obese 25 < BMI). Anthropometric parameter and other metabolic risk factors were measured. Insulin resistance was presented by HOMA-IR. Plasma adiponectin level was measured by radioimmunoassay method. Adiponectin multimerization was fractionated by SDS-PAGE under non-reducing and non-heat denaturing state and performed immunoblotting. RESULT: Serum adiponectin levels were significantly reduced in obese than non obese group in diabetes patients (7.73 +/- 5.2 versus 12.56 +/- 8 microgram/mL, P = 0.003). Correlational analyses demonstrated that BMI, body weight, waist circumference, diastolic pressure, glucose and height correlated significantly with adiponectin levels in the diabetes patients. The HOMA-IR did not affect the plasma adiponectin levels in diabetic patients. There were no differences in adiponectin multimerization distribution and ratio between obese and non-obese group in the diabetes, however middle molecular weight multimers (MMW, ~110~160 Kda, hexamer) ratio in the control subjects were significantly reduced in obese group than non-obese group (49 +/- 9 versus 56 +/- 11%, P < 0.05). CONCLUSION: The adipoenctin levels were lower in obese than non-obese group of diabetes males in Korea. Aiponectin levels correlated with BMI and weight but not insulin resistance. The differences of adiponectin multimerization distribution and ratio between obese and non-obese group in diabetes were not detected.
The Appropriate Distance and Duration of Walking for Exercise in Patients with Type 2 Diabetes Mellitus.
Tae Seo Sohn, Jung Min Lee, Sang Ah Chang, Kyung Ah Han, Hyun Shik Son, Hyo Jeong Kim, Chul Woo Ahn, Yeon Ah Sung, Kyung Wan Min, Sei Hyun Baik, Jae Myeong Yu, Sung Woo Park
Korean Diabetes J. 2007;31(2):157-162.   Published online March 1, 2007
DOI: https://doi.org/10.4093/jkda.2007.31.2.157
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AbstractAbstract PDF
BACKGROUND
For decades, exercise has been considered a cornerstone of diabetes managements, along with diet and medication. Many studies have shown that regular physical activity improves quality of life, reduces the risk of mortality from all causes, and is particularly advantageous in subjects with impaired glucose tolerance or type 2 diabetes mellitus. However, high-quality evidence and basic data on the importance of exercise and physical fitness in Korean diabetic patients were lacking until recent years. METHOD: This study included 240 diabetic patients (122 men, 118 women) recruited from 6 diabetic centers in Korea. To measure step length and walking velocity at normal walking speed, we made the patient walk 12 meter at normal speed. The patients wore the pedometer for 7 days and we got the equation between the walking steps per day and calorie expenditure for 7 days. From the equation, we calculated appropriate steps, distance and duration of walking in type 2 diabetic patients as exercise program RESULTS: In men, the walking velocity was 4.4 +/- 0.6 km/h and step length was 67.6 +/- 7.3 cm at normal walking speed. In women, the walking velocity was 4.0 +/- 0.6 km/h and step length was 58.4 +/- 5.5 cm at normal walking speed. The equation between kcal per week and steps per day was that kcal/week = (steps/day) x 0.268 + 64.074 (R2 = 0.854, P < 0.01) in men and kcal/week in women = (steps/day) x 0.256 - 39.005 (R2 = 0.890, P < 0.01). The steps/day, walking distance and walking duration which correspond to 700 kcal/week was 2,373 steps/day, 21.9 minutes and 1,604 meter in men, and 2,887 steps/day, 25.3 minutes and 1,690 meter in women at normal walking speed. CONCLUSION: To exert at least 700 kcal/week with exercise, it is recommended that type 2 diabetic patients walk at least 25 minutes/day or 1,700 meter/day or 2,500 steps/day in men and 30 minutes/day or 1,800 meter/day or 3,000 steps/day in women at normal walking speed.

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  • Effects of Tai Chi Exercise on Glucose Control, Neuropathy Scores, Balance, and Quality of Life in Patients with Type 2 Diabetes and Neuropathy
    Sukhee Ahn, Rhayun Song
    The Journal of Alternative and Complementary Medicine.2012; 18(12): 1172.     CrossRef
  • Small Rice Bowl-Based Meal Plan for Energy and Marcronutrient Intake in Korean Men with Type 2 Diabetes: A Pilot Study
    Hee Jung Ahn, Kyung Ah Han, Jin Young Jang, Jae Hyuk Lee, Kang Seo Park, Kyung Wan Min
    Diabetes & Metabolism Journal.2011; 35(3): 273.     CrossRef
  • Group Classification on Management Behavior of Diabetic Mellitus
    Sung-Hong Kang, Soon-Ho Choi
    Journal of the Korea Academia-Industrial cooperation Society.2011; 12(2): 765.     CrossRef
  • Bowl-Based Meal Plan versus Food Exchange-Based Meal Plan for Dietary Intake Control in Korean Type 2 Diabetic Patients
    Hee-Jung Ahn, Boo-Kyung Koo, Ji-Yeon Jung, Hwi-Ryun Kwon, Hyun-Jin Kim, Kang-Seo Park, Kyung-Ah Han, Kyung-Wan Min
    Korean Diabetes Journal.2009; 33(2): 155.     CrossRef
Pedometer-Determined Physical Activity in Type 2 Diabetes in Korea.
Sang Ah Chang, Jung Min Lee, Tae Seo Sohn, Hyun Shik Son, Sung Woo Park, Sei Hyun Baik, Jae Myung Yu, Yeon Ah Sung, Chul Woo Ahn, Kyung Wan Min, Kyung Ah Han
Korean Diabetes J. 2007;31(1):83-88.   Published online January 1, 2007
DOI: https://doi.org/10.4093/jkda.2007.31.1.83
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AbstractAbstract PDF
BACKGROUND
Walking is a popular, convenient and relatively safe form of exercise. However, there is few objective data for walking exercise. The aim of this study was to evaluate pedometer-determined physical activity defined as steps/day in type 2 diabetes mellitus. Therefore, it could be the basic data for programming walking exercise in diabetes mellitus. METHODS: Participants with type 2 diabetes who visited in 6 university hospitals on February, 2006 in Seoul and Kyung-gi area were recruited. The participants were asked their ambulatory activity with the given pedometer and calorimeter for 1 week. Total 240 (Male 122, Female 118) subjects who walked above 1000 steps/day were analyzed. We also collected their biochemical data from the medical records. RESULTS: Participants took 8532 +/- 4130 steps for day (step/day) and energy expenditure were 320 +/- 161 Cal/day. Steps/day was not significantly different between male and female, but energy expenditure was higher in male than female ( P < 0.05). Steps/day was significantly lower in obese patients than non-obese patients (P < 0.001). BMI (r = -0.325, P < 0.001), waist circumference (r = -0.287, P < 0.001), triglyceride (r = 0.164, P < 0.018) showed significant inverse correlation with steps/day, but BUN (r = 0.165, P = 0.019) and HDL-cholesterol (r = 0.164, P = 0.018) were positive correlated with steps/day significantly. BMI (r = -0.14, P < 0.032) and cholesterol (r = -0.139, P < 0.041) showed significantly inverse correlation with energy expenditure and BUN (r = 0.187, P = 0.008) and HDL cholesterol (r = 0.145, P < 0.037) positively correlated with energy expenditure. Pedometer-determined steps/day was positively associated with energy expenditure (r2 = 0.824, P < 0.001). CONCLUSION: This study showed the objective quantification of physical activity measured by simple and inexpensive pedometers. It could be used to recommend walking exercise since the practitioners can estimate steps/day for required energy expenditure.
Acquired Generalized Lipodystrophy with Severe Insulin Resistant Diabetes Mellitus.
Jung Min Lee, Tae Seo Sohn, Hyun Shik Son
Korean Diabetes J. 2006;30(6):487-491.   Published online November 1, 2006
DOI: https://doi.org/10.4093/jkda.2006.30.6.487
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AbstractAbstract PDF
Acquired generalized lipodystrophy is a rare disease, and often follows autoimmune disease, prodromal infection, HIV infection. The clinical characteristics are generalized absence of fat, insulin resistance, diabetes mellitus, absence of ketosis, elevated basal metabolic rate, severe hypertriglyceridemia, and hepatomegaly. Here we experience and report a case of 16-year-old female patient who has clinical features of acquired generalized lipodystrophy with severe insulin resistant diabetes mellitus without any prodromal states.
A Case of Acromegaly Presenting with Diabetic Ketoacidosis.
Jin Dong Kim, Tae Seo Sohn, Jee In Lee, Jick Hwan Hah, Yun Hwa Jung, Jung Min Lee, Sung Min Nam, Seung Won Lee, Hyun Shik Son
Korean Diabetes J. 2006;30(4):312-315.   Published online July 1, 2006
DOI: https://doi.org/10.4093/jkda.2006.30.4.312
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AbstractAbstract PDF
In patients with acromegaly, glucose intolerance and diabetes mellitus are one of the frequent manifestations. And the type of diabetes in these patients is usually non-insulin dependent type secondary to insulin resistance caused by growth hormone excess. Therefore, the diabetes mellitus in these patients dose not tend to develop diabetic ketoacidosis. But we experienced and presented the case of a patient with acromegaly hospitalized due to the diabetic ketoacidosis without overt clinical manifestations of acromegaly. This case of acromegaly showed that growth hormone excess could cause diabetic ketoacidosis in the presence of relative insulin deficiency.
Effect of 12-week Oral Treatment with alpha-lipoic acid on the Nerve Conduction in Symptomatic Diabetic Neuropathy.
Tae Seo Sohn, Jung Min Lee, Sang Ah Chang, Hyun Shik Son, Bong Youn Cha, Ho Young Son, Kwang Woo Lee, Sung Ku Kang
Korean Diabetes J. 2005;29(6):533-539.   Published online November 1, 2005
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AbstractAbstract PDF
BACKGROUND
Diabetic peripheral neuropathy is multifactorial disorder arising from hyperglycemia and insulin deficiency. It has been suggested that oxidative stress resulting from enhanced free-radical formation and defects in antioxidant defence plays a major role among the putative pathogenic mechanisms of diabetic neuropathy. As alpha-lipoic acid, a natural antioxidant, has been suggested to improve symptoms of diabetic neuropathy, we assessed the efficacy of alpha-lipoic acid on neuropathic symptoms and peripheral nerve conduction in patients with type 2 diabetes mellitus with symptomatic polyneuropathy. METHODS: A cohort of 30 type 2 diabetic patients with symptomatic polyneuropathy received a daily dose of 600 mg alpha-lipoic acid, and was followed for 3 months. Neuropathic symptoms (pain, burning, paraesthesiae, and numbness) of the feet were scored at monthly interval and summarized as a Total Symptom Score (TSS). Nerve conduction study was done before and after 3 month treatment of alpha-lipoic acid. RESULTS: Treatment of alpha-lipoic acid given 600 mg per oral for 12 weeks improved the symptoms of diabetic polyneuropathy. Effects of alpha-lipoic acid on nerve conduction study were that in the motor nerve, the amplitudes of median nerve and tibial nerve and the conduction velocity of tibial nerve improved after 12 weeks treatment. In the sensory nerve, the conduction velocities of median nerve, ulnar nerve, and sural nerve improved after 12 weeks. CONCLUSION: alpha-Lipoic acid was effective in the treatment of diabetic peripheral polyneuropathy improving both clinical manifestations and nerve conduction. The improvement of clinical manifestations may be due to improved conduction velocity of sensory fibers.
The Study of Physical Activity in the Korean with Type 2 Diabetes.
Kyung Wan Min, Keun Hee An, Tae Seo Sohn, Yong Moon Park, Yeong Sun Hong, Yeon Su Kim, Yi Byeong Park, Kang Seo Park, Gwan Woo Lee, In Ju Kim, Kyung Ah Han, Jae Myoung Yu, Hyun Shik Son, Sei Hyun Baik, Won Cheol Lee, Chung Gu Cho, Hyoung Woo Lee, Sung Woo Park
Korean Diabetes J. 2005;29(6):517-525.   Published online November 1, 2005
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AbstractAbstract PDF
BACKGROUND
Despite the importance of exercise, little is known about the epidemiology of exercise among persons with diabetes in the Korea. We do not have any standard method to evaluate physical activity of diabetics. So exercise committee of Korean diabetic association decided to survey the physical activities of Korean type 2 diabetic patients. METHODS: Cross-sectional study including 1073 type 2 diabetics (509 males, 564 females) over 18 age. 34 general hospitals collected data about physical activity from Dec. 2004 to Feb.2005. Data were randomly collected by interviewers using numeration table. Respondents were asked about the physical activities or exercise during recent 7 days and frequency, duration of each activity. To compare with normal population, we use 2001 KNHANES (Korean National Health and Nutrition Examination Survey) results. RESULTS: People with type 2 diabetes were more likely to report exercising regularly than people without this disease (52.5% vs. 27.5%) (p<0.0001), but 47.5% of type 2 diabetics didn't take exercise. Walking time of type 2 diabetics wasmore than that of people without this disease (p<0.0001). Type 2 diabetics exerting <700kcal/week of energy expenditure with physical activity were 45.5% in the exercising type 2 diabetics (males:44.2%, females:55.8%). Energy expenditure was positively correlated with frequency of physical exercise and exercise period (p<0.001). CONCLUSION: 47.5% of Korean type 2 diabetics and 72.5% of normal population did not take exercise. 45.5% of exercising type 2 diabetics exerted energy expenditure under 700kcal/week with physical activity. Therefore, various programs for initiating physical activity and increasing energy expenditure are required.
Evaluation of the Indicator Test(NeurocheckTM) in the Diagnosis of Peripheral Neuropathy among Type 2 Diabetic Patients.
Tae Seo Sohn, Hyun Shik Son, Jae Myung Yu, Bong Soo Cha, Kyung Wan Min, Sei Hyun Baik
Korean Diabetes J. 2005;29(3):247-253.   Published online May 1, 2005
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AbstractAbstract PDF
BACKGROUND
Eighty-five percent of the lower-limb amputations that are done for patients with diabetes are preceded by foot ulceration, and this suggests that prevention and the appropriate management of foot lesions are of paramount importance. Ulceration is caused by several factors acting together, but they are particularly caused by neuropathy. Various aspects of the neurovascular function can be evaluated with specialized tests, but these tests have generally not been well standardized and they have limited clinical utility. A new indicator test(NeurocheckTM) that utilizes the water-induced color change of a cobaltII compound from blue to pink has been introduced. The aim of the present study was to evaluate this new indicator test in the diagnosis of peripheral neuropathy among type 2 diabetic patients. METHOD: This study included 124 diabetic patients(45 men and 79 women) who were recruited from 5 diabetic centers in Korea. The presence of diabetic neuropathy was diagnosed by nerve conduction study. The degree of the patient's symptom was checked as the total symptom score(TSS). Autonomic sudomotor neuropathy was assessed by means of the new indicator test(NeurocheckTM). The degree of color change in 10 minutes was assessed as a complete color change, an incomplete color change or no color change. RESULTS: Of the 124 diabetics patients we investigated, 109 patients were proven to have peripheral neuropathy by nerve conduction study. Autonomic sudomotor neuropathy by NeurocheckTM was diagnosed in 94 patients with peripheral neuropathy(86.2%) and in 6 patients(40%) without peripheral neuropathy. The overall measure of agreement between NeurocheckTM and the electrodiagnostic test was 0.3673(0.1547, 0.58). The sensitivity and specificity of NeurocheckTM was higher in women(91.2% and 63.6%, respectively) than in men(78.0% and 50.0%, respectively). The measure of agreement in women was 0.5093(0.2396, 0.9601) and in the men it was 0.1567(-0.1423, 0.4588). CONCLUSION: The new indicator test has a high sensitivity for the diagnosis of peripheral neuropathy among diabetic patients, especially in women. It is likely that the new indicator test is useful clinically as a screening and diagnostic tool for diabetic neuropathy. Since the specificity of the test is somewhat low, the patients with a high total symptom score and who are without sudomotor neuropathy may need further diagnostic evaluation on neuropathy
The Relation of Serum Adipokines with Metabolic Risk Factors in Type 2 Diabetic Subjects.
Tae Seo Sohn, Jung Min Lee, Sang Ah Chang, Hyun Shik Son, Young Mi Ku, Bong Yun Cha, Kwang Woo Lee, Ho Young Son, Sung Ku Kang
Korean Diabetes J. 2004;28(6):521-529.   Published online December 1, 2004
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BACKGROUND
Accumulation of fat, especially in the visceral space, has been claimed to have a causative role in the development of macroangiopathies, because of the secretion of adipokine from the fat tissue. Indeed, the adipocyte secretes chemical messengers (e.g., adipokines) that include leptin, TNF-alpha , IL-6, adiponectin, and resistin. Since adipokines have biologic activities within the vascular system, they might be involved in the development of diabetic angiopathies. The aim of this study is to investigate the relation of adipokine with adiposity, metabolic risk factors, diabetic micro-, and macroangiopathies in type 2 diabetic patients. METHODS: The subjects of this study were 57 type 2 diabetic patients. Anthropometric parameters (height, body weight, waist circumference and body fat composition), cardiovascular risk factors (BP, Lp (a), lipid profile, hs-CRP, fibrinogen), status of glucose metabolism (HbA1c, fasting glucose), diabetic microvascular complication, intima-media thickness (IMT) at both common carotid artery and adipokine (leptin, adiponectin, resistin) were measured. RESULTS: The correlation between the serum adipokine level and duration of diabetes was statistically significant (P <0.01). The leptin was correlated with body mass index (r=0.446, P <0.01), waist circumference (r=0.553, P <0.01) and body fat content (r=0.573, P <0.01). The adiponectin was negatively correlated with plasmatotal cholesterol (r=-0.366, P <0.01) and triglyceride (r=-0.276, P <0.05). The resistin was correlated with Lp (a) (r=0.386, P <0.01), hs-CRP (r=0.413, P <0.01), fibrinogen (r=0.562, P <0.01) and 24hr microalbuminuria (r=0.353, P <0.05). The adiponectin was increased in patients with microalbuminuria than with normo- and macroalbuminuria (P <0.05). The resistin was increased in patients with micro- or macroalbuminuria than normoalbuminuria (P <0.05). The adiponectin was increased in patients with retinopathy (P <0.05). The serum adipokine level was not correlated with IMT of common carotid artery. CONCLUSION: This study reveals that serum adipokine was related with metabolic risk factor in type 2 diabetic patients. Among adipokines, adiponectin and resistin might be involved in diabetic angiopathy. The underlying mechanisms remained to be elucidated in the role of adipokine to the development of diabetic angiopathy.

Diabetes Metab J : Diabetes & Metabolism Journal
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