Effects of short-term treatment with corticotropin on the serum apolipoprotein pattern

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Effects of short-term treatment with corticotropin on the serum apolipoprotein pattern

Arnadottir, Margret (author)

Dallongeville, J (author)

Nilsson-Ehle, Peter (author): Lund University,Lunds universitet,Avdelningen för klinisk kemi och farmakologi,Institutionen för laboratoriemedicin,Medicinska fakulteten,Division of Clinical Chemistry and Pharmacology,Department of Laboratory Medicine,Faculty of Medicine

Berg, Anna-Lena (author): Lund University,Lunds universitet,Njurmedicin,Sektion II,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Nephrology,Section II,Department of Clinical Sciences, Lund,Faculty of Medicine

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2009-07-08
2001
English.
In: Scandinavian Journal of Clinical & Laboratory Investigation. - : Informa UK Limited. - 1502-7686 .- 0036-5513. ; 61:4, s. 301-306

Related links:: http://dx.doi.org/10...; show more...; https://lup.lub.lu.s...; https://doi.org/10.1...; show less...

Journal article (peer-reviewed)

Abstract Subject headings

Treatment with adrenocorticotrophic hormone (ACTH) has a well-documented cholesterol-lowering effect. Increased uptake of low-density lipoprotein (LDL) by HepG2 cells in response to incubation with ACTH has been demonstrated but the precise cholesterol-lowering mechanism has resisted elucidation. Since apolipoproteins are important determinants of lipoprotein metabolism, we sought to extend the knowledge of the effect of ACTH treatment on the serum apolipoprotein (apo) pattern. Twelve healthy individuals and 14 dyslipoproteinemic hemodialysis patients were recruited. The two groups responded similarly to ACTH1-24 at the dose of 1 mg daily for four days. In accordance with previous results, serum concentrations of total cholesterol decreased by 18% and 17%, LDL cholesterol by 25% and 30%, and apo B by 20% and 19%, respectively, while there were no significant changes in the serum concentrations of triglycerides, high-density lipoprotein cholesterol and apo AI. Novel findings were that the serum concentrations of total apo E increased by 48% and 31%, and apo B-associated apo E by 69% and 46%, respectively. Moreover, in the healthy individuals, the serum concentrations of apo CIII did not change in response to ACTH, whereas in the hemodialysis patients, those of apo CIII not associated with apo B increased significantly by 44%. Since apo E binds strongly to the LDL receptor, the present results suggest that the cholesterol-lowering effect of ACTH may be mediated by facilitated hepatic uptake of apo E-enriched apo B-containing lipoproteins. Thus, the findings stimulate further research.

Subject headings

MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Farmakologi och toxikologi (hsv//swe)
MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Pharmacology and Toxicology (hsv//eng)
MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Urologi och njurmedicin (hsv//swe)
MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Urology and Nephrology (hsv//eng)
MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Läkemedelskemi (hsv//swe)
MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Medicinal Chemistry (hsv//eng)

Keyword

Apolipoprotein
Ciii
E
Dialysis
Lipids

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art (subject category)
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