Prof. Rhee Sang Youl /R3 Cheol Hyun, Lee. Introduction  Chronic exposure to inorganic arsenic may be related to an increased risk of DM.  Specifically,

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Presentation transcript:

Prof. Rhee Sang Youl /R3 Cheol Hyun, Lee

Introduction  Chronic exposure to inorganic arsenic may be related to an increased risk of DM.  Specifically, chronic exposure via drinking water to inorganic arsenic at levels of 100 μg/L or higher is significantly related to DM risk.  However, other studies did not find that low-level inorganic arsenic exposure was a distinct DM risk.  In addition to the lack of generality and positive findings from other studies, there are few, if any, detailed studies of the mechanism by which chronic, low-dose arsenic exposure increases DM risk.

Introduction  In January 2011, the raw data of the Korea National Health and Nutrition Examination Survey (KNHANES) IV, conducted by the Korea Centers for Disease Control and Prevention, were released.  In particular, the 2008 and 2009 KNHANES IV data include urinary total arsenic and blood heavy metal levels.  Purpose of this study => to determine the relationship between environmental arsenic exposure and glucose tolerance status as well as the mechanism of insulin secretory dysfunction.

Patients and Methods  KNHANES IV (the Korea National Health and Nutrition Examination Survey) :  Study subject Blood sampling was performed on 3,997 and urine sampling on 3,921 of a total of 4,000 subjects urine and blood heavy metal assays. Urine samples were collected and subjected to a total arsenic concentration assay and whole blood samples were subjected to lead, mercury, cadmium, and manganese assays. Finally, 3,602 were eligible for inclusion in the analysis.  Specimen collection and assay AAnalyst600 (limit of detection for the arsenic concentration was 1.679) μg/L. The HOMA2 method reflects insulin resistance (HOMA2%S) and insulin secretion capacity (HOMA2 %B)

Results

Results

Conclusion In conclusion, diverse demographic characteristics influence urinary arsenic status in Korean adults. Additionally, high urinary arsenic concentrations are significantly related to DM risk and the effect of arsenic on glucose metabolism is closely associated with beta cell dysfunction in the Korean population. Future large-scale longitudinal studies that overcome the limitations of the current study will facilitate a more detailed view of the patho-physiological role of arsenic in glucose metabolism.

Thank you for your attention