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Archives 2017
Myanmar Health Sciences Research Journal
Volume 29, Number 1
TITLE: Serum and Erythrocyte Magnesium and Insulin Sensitivity in Adult Lean and Obese Subjects
AUTHOR: Nway Htike Maw, Cho Lwin Aung, Mya Mya Thwin & Ohnmar
SOURCE: Myanmar Health Sciences Research Journal, Vol. 29, No. 1, 2017
ABSTRACT: Magnesium is required for both proper glucose utilization and insulin signaling. Alterations in cellular magnesium may occur in obesity and
it contributes to insulin resistance. So, this study aimed to evaluate
the relationship between serum or erythrocyte magnesium level and
insulin sensitivity and beta-cell function of adult male subjects. A total
of 103 apparently healthy adult male subjects between 18-60 years
of age participated in this study. The subjects were divided into two
groups according to BMI (obese group: BMI≥23 kg/m2 and lean
group: BMI<23 kg/m2). Serum magnesium and erythrocyte magnesium levels of subjects were assessed by colorimetric method. Insulin sensitivity
and beta-cell function were assessed by homeostasis model assessment method (HOMA) based on fasting blood glucose and fasting insulin
level. Oxidase method was used to assess blood glucose and enzyme-linked immunosorbent assay for fasting insulin. The mean erythrocyte magnesium level of the obese subjects (n=52) (4.98±0.68 mg/dl) was significantly
lower than that of the lean subjects (n=51) (5.39±0.84 mg/dl). In this
study, no relationship was found between serum or erythrocyte
magnesium and HOMA-IR and HOMA-β cell in both obese and
lean subjects. Therefore, this study could not find out the significant relationship between serum magnesium and erythrocyte magnesium
with insulin resistance (HOMA-IR) and beta-cell functions (HOMA-β) in healthy adult male subjects.
SUBJECT HEADINGS: Erythrocyte magnesium, Insulin sensitivity, Obese and lean subjects
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