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. 2017 Jun 12;16(1):115.
doi: 10.1186/s12944-017-0511-9.

Severe hypertriglyceridemia in Norway: prevalence, clinical and genetic characteristics

Kjetil Retterstøl  1   2 , Ingunn Narverud  1   3 , Randi Selmer  4 , Knut E Berge  5 , Ingvild V Osnes  1 , Stine M Ulven  1 , Bente Halvorsen  6   7 , Pål Aukrust  6   7   8 , Kirsten B Holven  1   3 , Per O Iversen  9   10
Affiliations

Severe hypertriglyceridemia in Norway: prevalence, clinical and genetic characteristics

Kjetil Retterstøl et al. Lipids Health Dis. .

Abstract

Background: There is a lack of comprehensive patient-datasets regarding prevalence of severe hypertriglyceridemia (sHTG; triglycerides ≥10 mmol/L), frequency of co-morbidities, gene mutations, and gene characterization in sHTG. Using large surveys combined with detailed analysis of sub-cohorts of sHTG patients, we here sought to address these issues.

Methods: We used data from several large Norwegian surveys that included 681,990 subjects, to estimate the prevalence. Sixty-five sHTG patients were investigated to obtain clinical profiles and candidate disease genes. We obtained peripheral blood mononuclear cells (PBMC) from six male patients and nine healthy controls and examined expression of mRNAs involved in lipid metabolism.

Results: The prevalence of sHTG was 0.13 (95% CI 0.12-0.14)%, and highest in men aged 40-49 years and in women 60-69 years. Among the 65 sHTG patients, a possible genetic cause was found in four and 11 had experienced acute pancreatitis. The mRNA expression levels of carnitine palmitoyltransferase (CPT)-1A, CPT2, and hormone-sensitive lipase, were significantly higher in patients compared to controls, whereas those of ATP-binding cassette, sub-family G, member 1 were significantly lower.

Conclusions: In Norway, sHTG is present in 0.1%, carries considerable co-morbidity and is associated with an imbalance of genes involved in lipid metabolism, all potentially contributing to increased cardiovascular morbidity in sHTG.

Keywords: Co-morbidity; Genetics; Pancreatitis; Prevalence; Triglycerides.

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Figures

Fig. 1
Fig. 1
Frequency distribution of comorbidities in the 65 patients with severe hypertriglyceridemia
See this image and copyright information in PMC

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