Abstract：
:The goal of this research was to investigate the effects of 3 weeks consumption of 50 g flavonoid-rich dark chocolate on lipoprotein oxidative stress in vitro and in vivo in 25 women compared to 25 men. Levels of thiobarbituric acid-reactive substances, conjugated dienes and hydroperoxide levels in HDL and LDL before and after consumption of dark chocolate were determined. Moreover in platelets of the same subjects NO and peroxynitrite levels were studied. TBARs concentration in women's HDL decreased by 26.7% while in men's HDL 23.4%; lipid hydroperoxides decreased in women's HDL by 62.8% while in men's HDL they decreased by 21.1%. Conjugate diene formation decreased in women's HDL by 55.9%, while in men's HDL it decreased by 49.2%. Moreover TBARs concentration decreased in women's LDL by 26.7% after supplementation and in men's LDL by 21.6%; lipid hydroperoxides decreased in women's LDL by 83.6% while in men's LDL they decreased by 64.7%. Moreover conjugate diene formation decreased in women's LDL by 48.2%, while in men's LDL it decreased by 21.6%. After supplementation peroxynitrite values decreased in women by 24% and in men by 18.6% while NO increased after supplementation by 15.7% compared to basal determination in women, and by 32.2% in men. This study showed that a short-term intake of dark chocolate might improve the lipoprotein profile in healthy humans, more so in women than in men, and this might exert a protective effect on the cardiovascular system.
journal_name
Appetitejournal_title
Appetiteauthors
Nanetti L,Raffaelli F,Tranquilli AL,Fiorini R,Mazzanti L,Vignini Adoi
10.1016/j.appet.2011.11.010subject
Has Abstractpub_date
2012-02-01 00:00:00pages
400-5issue
1eissn
0195-6663issn
1095-8304pii
S0195-6663(11)00639-8journal_volume
58pub_type
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