Lipoprotein insulin resistance score and branched-chain amino acids increase after adrenalectomy for unilateral aldosterone-producing adenoma: a preliminary study.

Endocrine
Christian AdolfRobin P F Dullaart

Abstract

Primary aldosteronism (PA) due to unilateral aldosterone-producing adenoma (APA) is preferentially treated by unilateral adrenalectomy (ADX), but little is known about the changes in lipid and glucose metabolism that may occur after ADX. We studied 19 non-diabetic patients who did not use lipid-lowering drugs with PA due to APA before and 6 months after unilateral ADX. Fasting plasma lipids, lipoprotein subfractions, branched-chain amino acids (BCAA), and GlycA, a pro-inflammatory glycoprotein biomarker, were measured by nuclear magnetic resonance (NMR) spectroscopy. The Lipoprotein Insulin Resistance (LP-IR) score, which is based on six lipoprotein variables, was calculated. In all patients, hyperaldosteronism was resolved after ADX. Body mass index and fasting plasma glucose were unchanged, but HbA1c increased (p = 0.002). Plasma triglycerides, large triglyceride-rich lipoprotein (TRL) cholesterol, and large TRL particles were increased (p < 0.01), resulting in an increase in TRL size (p = 0.027). High-density lipoprotein size was decreased (p = 0.015). LP-IR scores (p = 0.001) and total BCAA (p = 0.017) were increased, but GlycA remained unaltered. Based on increases in LP-IR scores and BCAA, which each have been shown to pr...Continue Reading

References

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Methods Mentioned

BETA
nuclear magnetic resonance
NMR

Software Mentioned

SPSS

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