liu.seSearch for publications in DiVA
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Effects of α-tocopherol and astaxanthin on LDL oxidation and atherosclerosis in WHHL rabbits
Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Pharmacology.
Linköping University, Faculty of Health Sciences. Linköping University, Department of Neuroscience and Locomotion, Pathology.
Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Internal Medicine.
IMV Faculty ofHealth Sciences, Linköping.
2004 (English)In: Atherosclerosis, ISSN 0021-9150, Vol. 173, no 2, 231-237 p.Article in journal (Refereed) Published
Abstract [en]

The aim of this study was to evaluate the influence of α-tocopherol and astaxanthin on low-density lipoprotein (LDL) oxidation lag time and atherosclerotic lesion formation in Watanabe heritable hyperlipidemic (WHHL) rabbits. Thirty-one, 3-month-old WHHL rabbits were divided into three experimental groups. One group (n=10) was fed standard rabbit feed alone and served as a control, a second group (n=11) was supplied with the same feed containing 500mg α-tocopherol/kg and a third group (n=10) was given a feed containing 100mg astaxanthin/kg. Plasma lipids, lipoproteins and LDL oxidation lag time were followed for 24 weeks. At the end of the treatment period, the animals were killed and the thoracic aorta was used for evaluation of the degree of atherosclerosis. Colour photographs of the intimal surface of the vessel were taken for determination of the atherosclerotic area. Cross-sections of the thoracic aorta were used for histological examination and for determination of intimal thickening. Specimens of the vessel were used for determination of the tissue cholesterol content. Plasma cholesterol remained at a high level during the time of the experiment and there were no differences between the experimental groups. After 24 weeks, the LDL oxidation lag time was 53.7±1.7min, 109±4min (P<0.001) and 56.4±3.4min (P=0.47) in the control, α-tocopherol and astaxanthin groups, respectively. In the thoracic aorta, the atherosclerotic area was 80.7±5.1%, 67.1±6.7% (P=0.13) and 75.2±5.7% (P=0.49) in the control, α-tocopherol and astaxanthin groups, respectively. The intimal thickening was 45.6±3.2%, 44.0±4.1% (P=0.89) and 40.0±4.5% (P=0.33) in the control, α-tocopherol and astaxanthin groups, respectively. Finally, the cholesterol content was 107±9μmol/g, 95.7±11. 5μmol/g (P=0.31) and 101±5μmol/g (P=0.33) in the control, α-tocopherol and astaxanthin groups, respectively. It can be concluded that α-tocopherol but not astaxanthin prolonged the LDL oxidation lag time. The two antioxidative substances did not prevent atherogenesis in WHHL rabbits in this setting.

Place, publisher, year, edition, pages
2004. Vol. 173, no 2, 231-237 p.
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-22710DOI: 10.1016/j.atherosclerosis.2004.01.003Local ID: 2007OAI: oai:DiVA.org:liu-22710DiVA: diva2:243023
Available from: 2009-10-07 Created: 2009-10-07 Last updated: 2011-01-12

Open Access in DiVA

No full text

Other links

Publisher's full text

Authority records BETA

Jacobsson, LeifYuan, Xi MingZiedén, Bo

Search in DiVA

By author/editor
Jacobsson, LeifYuan, Xi MingZiedén, Bo
By organisation
Faculty of Health SciencesPharmacologyPathologyInternal Medicine
In the same journal
Atherosclerosis
Medical and Health Sciences

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 67 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf