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Diabetes Res Clin Pract. 2008 Aug;81(2):258-62. doi: 10.1016/j.diabres.2008.04.012. Epub 2008 Jun 2.

CLD (chronic liver diseases)-HbA1C as a suitable indicator for estimation of mean plasma glucose in patients with chronic liver diseases.

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1
Department of Internal Medicine, Kinki Central Hospital, Kuruma-zuka 3-1, Itami, Hyogo 664-8533, Japan. koga_m@kich.itami.hyogo.jp

Abstract

In patients with chronic liver diseases (CLD), turnover of erythrocytes is increased whereas that of serum albumin is decreased. Thus, glycated hemoglobin (HbA(1C)) and glycated albumin (GA) cannot be used as adequate indicators for chronic plasma glucose control in diabetic patients with CLD. In this investigation, we have proposed CLD-HbA(1C), a novel long-term glycemic control marker by using measured HbA(1C) and GA. We studied 82 patients with CLD in whom glycemic control was regarded as to be stable. Daily plasma glucose profiles were monitored and estimated levels of HbA(1C) were calculated on the conversion formula established by Rohlfing et al. [C.L. Rohlfing, J.D. England, H.M. Wiedmeyer, A. Tennill, R.R. Little, D.E. Goldstein, Defining the relationship between plasma glucose and HbA1c, Diabetes Care 25 (2002) 275-278]. Cholinesterase (ChE) as an indicator for hepatic function was determined at the same time when HbA(1C) and GA levels were measured. CLD-HbA(1C) was defined as the average of measured HbA(1C) and GA/3, based upon the results that among healthy individuals, GA levels were roughly estimated at approximately threefold higher than HbA(1C) levels. While measured HbA(1C) levels in patients with CLD were generally lower than estimated HbA(1C) levels, GA/3 values were generally higher than estimated HbA(1C) levels. Such discrepancies lineally increased in accordance with a decrease in ChE levels. On the other hand, CLD-HbA(1C) levels were highly correlated with estimated HbA(1C) levels (R=0.883), while no significant correlation between CLD-HbA(1C) and ChE was noted. In conclusion, CLD-HbA(1C) has been found a superior chronic glycemic control marker than HbA(1C) or GA in diabetic patients with chronic liver diseases.

PMID:
18513821
DOI:
10.1016/j.diabres.2008.04.012
[Indexed for MEDLINE]
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