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Hai Jin Kim  (Kim HJ) 6 Articles
In vivo Corneal Confocal Microscopy and Nerve Growth Factor in Diabetic Microvascular Complications.
Ji Sun Nam, Young Jae Cho, Tae Woong Noh, Chul Sik Kim, Jong Suk Park, Min ho Cho, Hai Jin Kim, Ji Eun Yoon, Han Young Jung, Eun Seok Kang, Yu Mie Rhee, Hyung Keun Lee, Chul Woo Ahn, Bong Soo Cha, Eun Jig Lee, Sung Kil Lim, Kyung Rae Kim, Hyun Chul Lee
Korean Diabetes J. 2007;31(4):351-361.   Published online July 1, 2007
DOI: https://doi.org/10.4093/jkda.2007.31.4.351
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AbstractAbstract PDF
BACKGROUND
In vivo corneal confocal microscopy (IVCCM) is being recognized as a non-invasive, early diagnostic tool for diabetic neuropathy, for it provides a clear image of corneal subbasal nerve plexus in detail. Nerve growth factors (NGF) are believed to regulate peripheral and central nervous system, neuronal differentiation, and regeneration of damaged nerves, and their role in diabetic neuropathy is being emphasized these days. Moreover, NGFs and receptors are also expressed in retina and renal mesangial cells, suggesting their possible role in the common pathogenesis of diabetic microvascular complications. We plan to examine corneal structures of diabetic patients and compare IVCCM with conventional tools and analyze their serum and tear NGF levels. METHODS: IVCCM, nerve conduction velocity (NCV), and serum, urine, and tear samplings were done to 42 diabetic patients. From IVCCM, we measured corneal nerve density, branch, and tortuosity, total corneal/epithelial thickness, and the number of endothelial/keratocyte cells, and we checked patients' biochemical profiles and serum and tear NGF levels. RESULTS: Patients with more severe neuropathy had less corneal endothelial cells (3105 +/- 218 vs. 2537 +/- 142 vs. 2350 +/- 73/mm3 vs. 1914 +/- 465/mm3, P = 0.02), higher serum NGF (36 +/- 15 vs. 60 +/- 57.66 vs. 80 +/- 57.63 vs. 109 +/- 60.81 pg/mL, P = 0.39) and tear NGF levels (135.00 +/- 11.94 vs. 304.29 +/- 242.44 vs. 538.50 +/- 251.92 vs. 719.50 +/- 92.63 pg/mL, P = 0.01). There was a positive correlation between neuropathy and corneal nerve tortuosity (r2 = 0.479, P = 0.044) and negative correlation between neuropathy and endothelial cell count (r2 = -0.709, P = 0.002). Interestingly, similar changes were seen in other microvascular complications as well. CONCLUSION: Our results provide a possibility of using novel tools, IVCCM and NGF, as common diagnostic tools for diabetic microvascular complications, but it should be followed by a large population study.
Activation of NF-kappaB and AP-1 in Peripheral Blood Mononuclear Cells Isolated from Patients with Diabetic Nephropathy.
Jisun Nam, Min Ho Cho, Jong Suk Park, Geun Taek Lee, Hai Jin Kim, Eun Seok Kang, Yu Mie Lee, Chul Woo Ahn, Bong Soo Cha, Eun Jig Lee, Sung Kil Lim, Kyung Rae Kim, Hun Joo Ha, Hyun Chul Lee
Korean Diabetes J. 2007;31(3):261-273.   Published online May 1, 2007
DOI: https://doi.org/10.4093/jkda.2007.31.3.261
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AbstractAbstract PDF
BACKGROUND
We evaluated the role of oxidative stress in diabetic nephropathy by measuring intracellular reactive oxygen species (ROS) and redox-sensitive transcription factors in isolated peripheral mononuclear cells (PBMC). METHODS: From 66 diabetic patients with or without diabetic nephropathy (Group III and II, respectively) and 49 normal control subjects (Group I), spontaneous and stimulated ROS levels, activities of nuclear factor-kappa B (NF-kappaB), activator protein-1 (AP-1), and specificity protein1 (Sp1) in PBMC, urinary and PBMC TGF-beta1 (transforming growth factor-beta1), and 24-hour urinary albumin excretion (UAE) were measured. RESULTS: Spontaneous ROS was significantly higher in group III and II than group I (60.7 +/- 3.3 vs. 60.0 +/- 3.0 vs. 41.1 +/- 2.4%, respectively), and stimulated ROS were significantly higher in Group III compared to Group II (Increment of H2O2-induced ROS production: 21.8 +/- 2.2 vs. 11.1 +/- 2.0%, respectively; increment of PMA-induced ROS production 23.5 +/- 4.5 vs. 21.6 +/- 2.2%, respectively). The activities of NF-kappaB and AP-1, but not of Sp1, were significantly higher in Group III than in Group II (2.53 vs. 2.0 vs. 1.43-fold, respectively). Both PBMC- and urinary TGF-beta1 levels were higher in Group III than Group II (3.23 +/- 0.39 vs. 1.99 +/- 0.68 ng/mg in PBMCs, 16.88 +/- 6.84 vs. 5.61 +/- 1.57 ng/mL in urine, both respectively), and they were significantly correlated with activities of NF-kappaB and AP-1 and 24-hour UAE. CONCLUSIONS: Increased intracellular ROS generation in PBMCs of diabetic patients is involved in the pathogenesis of diabetic nephropathy through activation of NF-kappaB and AP-1, but not Sp1, and increased expression of TGF-beta1.
Relation between Cerebral Arterial Pulsatility and Insulin Resistance in Type 2 Diabetic Patients.
Jong Suk Park, Chul Sik Kim, Hai Jin Kim, Ji Sun Nam, Tae Woong Noh, Chul Woo Ahn, Kyung Yul Lee, Bong Soo Cha, Sung Kil Lim, Kyung Rae Kim, Hyun Chul Lee
Korean Diabetes J. 2006;30(5):347-354.   Published online September 1, 2006
DOI: https://doi.org/10.4093/jkda.2006.30.5.347
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AbstractAbstract PDF
BACKGROUND
Diabetic patients have a 3-fold risk for cerebrovascular disease compared with nondiabetic controls. The aim of the present study was to investigate the association of insulin resistance with pulsatility index (PI) of cerebral arteries in type 2 diabetic patients. METHODS: We compared a group of 90 patients with stroke free, type 2 diabetes and an age- and sex-matched control group of 45 healthy subjects without diabetes. Diabetic patients were divided into 3 groups according to the ISI (insulin sensitivity index). We evaluated PI of the middle cerebral artery (MCA) by transcranial Doppler ultrasonography (TCD) and insulin resistance determined by short insulin tolerance test. RESULTS: The PI was significantly higher in diabetic patients than that in healthy controls (P < 0.05), and also higher in patients with insulin resistance than that in insulin sensitive diabetic patients (P < 0.05). The PI of the MCA was significantly correlated with age (r= 0.465, P < 0.01), duration of diabetes (r = 0.264, P = 0.025), hypertension (r = 0.285, P = 0.015) and inversely correlated with insulin resistance (r = -0.359, P = 0.030).Multiple regression analysis was performed with PI as a dependent variable and insulin resistance as an independent variable along with known clinical risk factors. Age (beta = 0.393, P < 0.01) and duration of diabetes (beta = 0.274, P = 0.043) exhibited a significant independent contribution to PI. CONCLUSIONS: PI might be useful markers of the detection of diabetic cerebrovascular changes and insulin resistance, measured with short insulin tolerance test, showed correlations with PI, but age and duration of diabetes contributed independently to the variability in the PI.

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  • Factors Affecting Basilar Artery Pulsatility Index on Transcranial Doppler
    Ho Tae Jeong, Dae Sik Kim, Kun Woo Kang, Yun Teak Nam, Ji Eun Oh, Eun Kyung Cho
    The Korean Journal of Clinical Laboratory Science.2018; 50(4): 477.     CrossRef
Effects of Pioglitazone on Cerebral Hemodynamics in Patients of Type 2 Diabetes.
Jong Suk Park, You Jung Lee, Chul Sik Kim, Hai Jin Kim, Jina Park, Chul Woo Ahn, Kyung Yul Lee, Hyeong Jin Kim, Young Jun Won, Hun Ju Ha, Hae Sun Kwak, Bong Soo Cha, Sung Kil Lim, Kyung Rae Kim, Hyun Chul Lee
Korean Diabetes J. 2006;30(2):96-103.   Published online March 1, 2006
DOI: https://doi.org/10.4093/jkda.2006.30.2.96
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AbstractAbstract PDF
BACKGROUND
Atherosclerosis is one of the major causes of morbidity and mortality in patients with type 2 diabetes and pioglitazone has been reported to have antiatherogenic effect. The aim of this study was to investigate whether pioglitazone affects carotid intima-media thickness (IMT) and pulsatility index (PI) in type 2 diabetic patients. METHODS: A total of 40 type 2 diabetic patients were included and divided into two groups: the pioglitazone-treated group (pioglitazone 15 mg/day with gliclazide 80~320 mg/day for 12 weeks) (n = 20) and control group (gliclazide 80~320 mg/day for 12 weeks) (n = 20). The changes in lipid profile, insulin resistance, IMT, and PI were monitored to determine that pioglitazone improves cerebrovascular blood flow. RESULTS: The pioglitazone treatment significantly increased HDL-C, reduced triglyceride, insulin resistance and PI. IMT tended to decrease but the change was not significant. This study revealed that treatment with pioglitazone was associated with the improvement of cerebrovascular blood flow. CONCLUSIONS: Pioglitazone appears to be effective for the improvement of cerebrovascular blood flow in type 2 diabetic patients
Relationship of LDL Particle Size to IMT and Insulin Resistance in Non-Diabetic Adult.
Jina Park, Chul Sik Kim, Jong Suk Park, Dol Mi Kim, Min Ho Cho, Jee Hyun Kong, Hai Jin Kim, Jeong Ho Kim, Chul Woo Ahn, Kyung Rae Kim, Bong Soo Cha, Sung Kil Lim, Hyun Chul Lee
Korean Diabetes J. 2005;29(4):333-343.   Published online July 1, 2005
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AbstractAbstract PDF
BACKGROUND
The aims of this study were to investigate the predictor of the low density lipoprotein(LDL) particle size and the relationship of the LDL particle size to the levels of insulin resistance and the carotid intima-media thickness (IMT) in healthy Koreans. METHODS: The subjects were 47 and 89 clinically healthy males and females, aged between 32 and 70years, without medications that could potentially alter glucose and lipid metabolisms. The mean LDL particle size was determined by polyacrylamide tube gel electrophoresis(Lipoprint(r) LDL, Quantimetrix), the insulin resistance using a short insulin tolerance test kit, and the subclinical atherosclerosis from the carotid intima-media thickness. RESULTS: The LDL particle size was found to be significantly correlated with insulin resistance using a simple Pearson's correlation(r=0.233, P<0.01), but the independent predictors of the LDL particle size, as determined by a multiple stepwise regression analysis, were serum triglyceride(TG), high density lipoprotein(HDL) cholesterol level and age(beta=-0.403, P=< 0.001; beta=0.309, P=0.003; beta=-0.219, P=0.016, respectively). Significant relationships were found between an increasing IMT and the traditional risk factors of atherosclerosis: age, LDL cholesterol, HDL cholesterol, systolic and diastolic blood pressure(r=0.490, P<0.001; r=-0.251, P<0.01; r=0.211, P<0.05; r=0.298, P<0.01; r=0.263, P<0.01, respectively). However, no significant correlation was found between an increasing IMT and the LDL particle size (r=-0.172, P=0.075). CONCLUSION: The best predictors for the LDL particle size were the serum TG level, HDL cholesterol level and age. Insulin resistance was not found to be an independent predictor of the LDL particle size. Small dense LDL was not found to be a predictor of the IMT in healthy Koreans.
Prevalence of Diabetes Mellitus(Fasting Plasma Glucose by the ADA Criteria) and Impaired Fasting Glucose according to Anthropometric Characteristics and Dietary Habits: 1998 National Health and Nutrition Survey.
Chul Sik Kim, Eun Kyong Jeong, Jina Park, Min Ho Cho, Ji Sun Nam, Hai Jin Kim, Jee Hyun Kong, Jong Suk Park, Joo Young Nam, Dol Mi Kim, Chul Woo Ahn, Bong Soo Cha, Sung Kil Lim, Kyung Rae Kim, Hyun Chul Lee, Chung Mo Nam
Korean Diabetes J. 2005;29(2):151-166.   Published online March 1, 2005
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AbstractAbstract PDF
BACKGROUND
The study is based on the National Health and Nutrition Examination Survey in Korea(1998). With these data, we want to predict the prevalence of diabetes mellitus(DM) and impaired fasting glucose(IFG), By investigating anthropometric characteristics and dietary intake habits, we also wanted to analyze any significant correlation between those factors and the prevalences of DM and IFG. METHODS: The study group was comprised of 8,166 people, a representative group of Koreans, who had undergone a health check-up and food intake survey among the total 39,331 members of 12,189 families who were surveyed. RESULTS: The final results are as the follows. 1) The peak prevalence of DM was 15.92% among women in their sixties and 18.21% among men in their fifties, and that of IFG was found to be 16.27% of women in their seventies and 14.09% of men in their sixties. 2) When analyzing the eating habits and the prevalences of DM and IFG, we found that women with more glucose intake had a lesser risk of DM, but this was of no statistical significance. 3) In men, age, total cholesterol, triglyceride(TG), and hypertension(HTN) were revealed as meaningful factors and in women, age, TG, and HTN were revealed as meaningful factors. As to the IFG, in females, age and TG were meaningful factors, and in males, age, TG, the waist/hip ratio (WHR), and body mass index (BMI) were meaningful factors. CONCLUSION: Although this study could not demonstrate meaningful correlation between diet habits and DM, the prevalence of IFG and the recent increase in the prevalence of DM in Koreans, owing to alterations in their diet habits, demands further organized group study for a better understanding of their relationship

Diabetes Metab J : Diabetes & Metabolism Journal