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Altered Concentrations in Dyslipidemia Evidence a Role for ANGPTL8/Betatrophin in Lipid Metabolism in Humans
Update time:2016-12-12 18:53:00   【 Font: Large  Medium Small

Angiopoietin-like protein 8 (ANGPTL8)/betatrophin is a secreted protein initially involved in β-cell replication. Recent data in humans and mice models suggest that ANGPTL8/betatrophin is more related to lipid metabolism.
The aim of the present study was to compare the circulating concentrations of ANGPTL8/betatrophin in individuals with dyslipidemia defined as having high or low levels of high-density lipoprotein (HDL)-cholesterol or triglycerides, respectively.
Design, Setting, and Participants:
Serum concentrations of ANGPTL8/betatrophin were measured by an ELISA in 177 subjects. We studied two different selected case-control dyslipidemic cohorts including individuals with high (n = 43) or low (n = 46) circulating concentrations of HDL-cholesterol or with low (n = 48) or high (n = 40) levels of triglycerides.
Circulating concentrations of ANGPTL8/betatrophin were significantly lower in individuals with dyslipidemia (P < .001) in both males (controls 27.8 ± 15.2 vs dyslipidemic 17.0 ± 11.2 ng/mL) and females (controls 50.0 ± 22.2 vs dyslipidemic 27.0 ± 16.5 ng/mL). The magnitude of the differences was higher in dyslipidemic patients with low HDL-cholesterol than in those with high triglyceride concentrations. ANGPTL8/betatrophin levels were lower in subjects with type 2 diabetes (P < .001), but the impact of type 2 diabetes vanished (P = .257) when the effect of dyslipidemia was included in the analysis.
We conclude that serum ANGPTL8/betatrophin concentrations are altered in human dyslipidemia. ANGPTL8/betatrophin emerges as a potential player in dyslipidemia with a strong association with HDL-cholesterol and a potential therapeutic tool for the treatment of dyslipidemia.



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Source:The Journal of Clinical Endocrinology & Metabolism      by Gómez-Ambrosi J, Pascual-Corrales E, Catalán V, et al.
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