Abstract:
:Cadmium (Cd) exposure has been recognized to result in a wide variety of cellular responses, including oxidative stress and body weight loss. The aim of the present study was to examine the effect of lycopene supplementation on the antioxidant defense system, lipid peroxidation (LPO) level, nitric oxide (NO), tumor necrosis factor alpha (TNF-alpha) production, and body weight in Cd-exposed rats. Animals were divided into four groups (n = 7): control, Cd-treated, Cd plus lycopene-treated, and lycopene-treated. Cadmium (as CdCl2) was administrated orally for 20 days (6.6 mg kg(-1) day(-1)), and lycopene (10 mg kg(-1) day(-1)) was similarly administered. Lycopene administration significantly suppressed Cd-induced LPO in plasma and kidney homogenates. Lycopene also reversed Cd-decreased body weight compared to the control. Cadmium treatment had diverse effects on the antioxidant enzyme activities. Although antioxidant superoxide dismutase activity was unchanged, glutathione peroxidase activity was decreased, and catalase activity was elevated in kidney homogenates of Cd-administrated group. However, lycopene treatment reversed Cd-changed enzyme activities to the control level. Xanthine oxidase activity and TNF-alpha concentration were not altered by Cd administration, indicating that superoxide anion production and inflammation were not stimulated. Cadmium did not change NO levels in kidney homogenates but decreased those in plasma, and this effect was not prevented by lycopene supplementation. The result suggests that consumption of adequate levels of lycopene may be useful to prevent heavy-metal-induced LPO and body weight loss.
journal_name
Biol Trace Elem Resjournal_title
Biological trace element researchauthors
Rencuzogullari N,Erdogan Sdoi
10.1007/s12011-007-0027-7subject
Has Abstractpub_date
2007-08-01 00:00:00pages
175-83issue
2eissn
0163-4984issn
1559-0720pii
BTER:118:2:175journal_volume
118pub_type
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