Article

Hypolipidaemic and anti-atherosclerotic effects of lupin proteins in a rabbit model

The British journal of nutrition (impact factor: 3.45). 09/2008; 100(04):707 - 710. DOI:10.1017/S000711450894215X pp.707 - 710

ABSTRACT The biological activities of a protein isolate from lupin (Lupinus albus) were studied in a rabbit model of atherosclerosis. Focal plaque development was induced at both common carotid arteries by perivascular injury. After surgery, animals were fed three different diets for 90 d, all with 1 % cholesterol, 15 % SFA and 20 % protein; the protein source was casein (CAS), lupin proteins (LUP) or 50 % CAS+50 % LUP (CAS+LUP). Lower cholesterolaemia was detected in the LUP v. the CAS group at 60 and 90 d of treatment ( − 40·3 and − 33·5 %, respectively; P < 0·05). Cryosection analyses of the carotids indicated a significant reduction in focal lesion progression in the LUP v. the CAS group ( − 37·4 %; P < 0·05). In summary, in a rabbit model of atherosclerosis, a protein isolate from L. albus reduced cholesterolaemia and exerted a remarkable protective activity against atherosclerosis progression.

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Keywords

biological activities
 
carotids
 
CAS
 
CAS group
 
CAS+LUP
 
common carotid arteries
 
Cryosection analyses
 
different diets
 
focal lesion progression
 
Focal plaque development
 
L. albus
 
Lower cholesterolaemia
 
lupin proteins
 
Lupinus albus
 
perivascular injury
 
protein source