Diabetes & Metabolism Journal

Hyun Koo Yoon (Yoon HK)

3 Articles

Mutation Screening of HNF-1alpha Gene in Korean Women with Gestational Diabetes Mellitus.: Hun Sung Kim, Sun Hee Hwang, Eun Sun Choi, So Young Park, Chang Hoon Yim, Ki Ok Han, Hyun Koo Yoon, Ho Yeon Chung, Kyung Seon Kim, Jeong Bok, Jong Young Lee, Sung Hoon Kim; Korean Diabetes J. 2008;32(1):38-43. Published online February 1, 2008; DOI: https://doi.org/10.4093/kdj.2008.32.1.38

2,913 View
24 Download
2 Crossref

BACKGROUND
S: Gestational diabetes mellitus (GDM) is defined as glucose intolerance with onset or first detection during pregnancy and mostly caused by insulin resistance and beta-cell dysfunction like type 2 diabetes. However, autoimmune or monogenic diabetes can contribute to GDM. Maturity-onset diabetes of the young (MODY) is a monogenic form of diabetes characterized by an early age of onset and an autosomal dominant pattern of inheritance. Most MODY cases are attributable to mutations in HNF-1alpha gene, also known as MODY3. We investigated whether mutations in HNF-1alpha gene are present in Korean women with GDM. METHODS: A total of 96 Korean women with GDM who have a family history of DM were screened for mutations in the HNF-1alpha gene. We evaluated the clinical characteristics of GDM women with HNF-1alpha gene mutations. RESULTS: Five of 96 patients (5.2%) were found to have a mutation in HNF-1alpha gene. Four of those (-23C > G, 833G > A (Arg278Gln), 923C > T, IVS5 + 106A > G) were novel and one (-124G > C) in promoter region was reported in previous study. The mean age of GDM women with mutations of HNF-1alpha gene was 34 years. Four women with MODY3 gene mutations required insulin therapy during pregnancy. GDM women with MODY3 gene mutations appeared to be decreased insulin secretion (HOMA-%B) than those without mutations. CONCLUSIONS: We have found the existence of MODY3 as well as novel HNF-1alpha gene mutations in Korean women with GDM.

Citations

Citations to this article as recorded by

Update on Monogenic Diabetes in Korea
Ye Seul Yang, Soo Heon Kwak, Kyong Soo Park
Diabetes & Metabolism Journal.2020; 44(5): 627. CrossRef
Maturity-Onset Diabetes of the Young: What Do Clinicians Need to Know?
Sung-Hoon Kim
Diabetes & Metabolism Journal.2015; 39(6): 468. CrossRef

Clinical Courses of Two Women with Gestational Diabetes Mellitus Who are GAD Antibody Positive.: Sung Hoon Yu, Min Jun Song, Sung Hoon Kim, Chang Hoon Yim, Ki Ok Han, Won Kun Park, Hyun Koo Yoon, Ho Yeon Chung; Korean Diabetes J. 2006;30(5):398-402. Published online September 1, 2006; DOI: https://doi.org/10.4093/jkda.2006.30.5.398

2,415 View
31 Download

Abstract PDF: Gestational diabetes mellitus (GDM) is defined as glucose intolerance of various degrees with onset or first recognition during pregnancy. Women with GDM are at high risk of developing type 2 diabetes later in life, but the risk of developing type 1 diabetes is also increased. Positivity for glutamic acid decarboxylase (GAD) antibodies during pregnancy confers a high risk for subsequent progression to type 1 diabetes. Here, we reported the two cases with GDM who were GAD antibody positive and progressed to type 1 diabetes with different time-courses. One woman with GDM progressed rapidly to classical type 1 diabetes while the other became slowly progressive IDDM (SPIDDM) [or latent autoimmune diabetes in adults (LADA)].

Effect of Self-monitoring of Blood Glucose on Pregnancy Outcome in Women with Mild Gestational Diabetes.: Hak Chul Jang, Jeong Eun Park, Chang Hoon Yim, Ho Yeun Chung, Ki Ok Han, Hyun Koo Yoon, In Kwon Han, Moon Young Kim, Jae Hyug Yang, Mi Jung Kim, Sun Young Ko, Yeon Kyung Lee; Korean Diabetes J. 2001;25(1):93-102. Published online February 1, 2001

1,537 View
33 Download

Abstract PDF: BACKGROUND
Self-monitoring of blood glucose (SMBG) and intensive therapy with insulin demonstrated to have a positive effects in the reduction of the neonatal complications in women with gestational diabetes (GDM). However the utility of SMBG in the mild GDM who does not requiring insulin has not been formally reported. Therefore, to evaluate the effectiveness of SMBG in the management of mild GDM, we compared the pregnancy outcome and the postpartum glucose tolerance of women who monitored their glycemic control by SMBG to those of women who monitored by laboratory glucose test at each office visit during pregnancy. METHODS: We studied 185 women diagnosed as a GDM by NDDG criteria and their fasting glucose concentration < 5.8 mM. All subjects had singleton pregnancy,and no medical diseases that may affect fetal growth, and were certain of gestational age by early ultrasonography. They were treated with an identical GDM management protocol except glucose monitoring. One hundred five women were monitored by laboratory glucose test at each office visit (office group) and 80 women were monitored by SMBG (SMBG group). Pregnancy outcome including rates of cesarian section, obstetric complication, LGA infant and glucose tolerance status at postpartum were compared between two groups. RESULTS: The age, height, prepregnancy weight, weight at delivery and parity were not significantly different between the two groups. Fasting, 1-h, 2-h glucose concentration during the diagnostic test of GDM in SMBG group were similar to those of office group. However, 3-h glucose concentration of office group was 0.3 mM higher than that of SMBG group. The rate of primary cesarian section, preterm labor and pregnancy-induced hypertension of SMBG group were similar to those of office group. The mean postprandial 2-h glucose concentration of office group measured at each office was 0.5 mM higher than that of SMBG group. Although 5% of office group were treated with insulin, 24% of SMBG group were requiring insulin therapy. The birth weight and LGA infant rate of office group were 3403 432 g and 28%, those were heavier and higher than those of SMBG group (3169 447 g, 13.8%). The 90% of office group and 84% of SMBG group were performed 75 g oral glucose tolerance test at postpartum 6-8 weeks. There was no significant difference in rates of diabetes and IGT between office and SMBG group (9.5%, 11.6%; 7.5%, 9.0% respectively). CONCLUSIONS: This study demonstrated that SMBG is very seful in early detection of maternal hyperglycemia and lowing the postprandial glucose, as well as reducing the rate of LGA infants in women with mild GDM.

Author index