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Lycopene and vitamin C concentrations increase in plasma and lymphocytes after tomato intake. Effects on cellular antioxidant protection.
Eur J Clin Nutr. 2004 Oct; 58(10):1350-8.EJ

Abstract

OBJECTIVE

This study seeks to verify whether the regular consumption of small amounts of tomato products can protect lymphocyte DNA and lipids from oxidative damage.

DESIGN

Standardized dietary intervention.

SUBJECTS

Twelve healthy female subjects (mean age 25.2 y).

INTERVENTION

Subjects were instructed to follow a standardized diet for 1 week, followed by 3 weeks consumption of the same diet enriched with small amounts of different tomato products providing as a mean 8 mg lycopene, 0.5 mg beta-carotene and 11 mg vitamin C per day. Plasma and lymphocyte concentrations of carotenoids, vitamin C and vitamin E were analysed. Ex vivo protection of lymphocyte DNA from oxidative injury produced by iron ions was evaluated by means of the Comet assay, and lipid peroxidation by HPLC analysis of malondialdehyde (MDA).

RESULTS

Dietary intervention with tomato products increased lycopene concentration both in plasma (P < 0.001) and lymphocytes (P < 0.01). Vitamin C concentrations increased by approximately 35% in plasma (P < 0.05) and by approximately 230% in lymphocytes (P < 0.005). Vitamin E decreased significantly in plasma (P < 0.0001) but not in lymphocytes. Finally, there was an improved protection from DNA oxidative damage (P < 0.05) with no significant effect on MDA levels.

CONCLUSIONS

Our results suggest that tomato products are not only good sources of lycopene but also sources of bioavailable vitamin C. A Regular intake of small amounts of tomato products can increase cell protection from DNA damage induced by oxidant species. This effect may originate from the synergism of different antioxidants present in tomatoes.

Authors+Show Affiliations

Department of Food Science and Technology, Division of Human Nutrition, University of Milan, Italy. patrizia.riso@unimi.itNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

15054415

Citation

Riso, P, et al. "Lycopene and Vitamin C Concentrations Increase in Plasma and Lymphocytes After Tomato Intake. Effects On Cellular Antioxidant Protection." European Journal of Clinical Nutrition, vol. 58, no. 10, 2004, pp. 1350-8.
Riso P, Visioli F, Erba D, et al. Lycopene and vitamin C concentrations increase in plasma and lymphocytes after tomato intake. Effects on cellular antioxidant protection. Eur J Clin Nutr. 2004;58(10):1350-8.
Riso, P., Visioli, F., Erba, D., Testolin, G., & Porrini, M. (2004). Lycopene and vitamin C concentrations increase in plasma and lymphocytes after tomato intake. Effects on cellular antioxidant protection. European Journal of Clinical Nutrition, 58(10), 1350-8.
Riso P, et al. Lycopene and Vitamin C Concentrations Increase in Plasma and Lymphocytes After Tomato Intake. Effects On Cellular Antioxidant Protection. Eur J Clin Nutr. 2004;58(10):1350-8. PubMed PMID: 15054415.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Lycopene and vitamin C concentrations increase in plasma and lymphocytes after tomato intake. Effects on cellular antioxidant protection. AU - Riso,P, AU - Visioli,F, AU - Erba,D, AU - Testolin,G, AU - Porrini,M, PY - 2004/4/1/pubmed PY - 2005/1/26/medline PY - 2004/4/1/entrez SP - 1350 EP - 8 JF - European journal of clinical nutrition JO - Eur J Clin Nutr VL - 58 IS - 10 N2 - OBJECTIVE: This study seeks to verify whether the regular consumption of small amounts of tomato products can protect lymphocyte DNA and lipids from oxidative damage. DESIGN: Standardized dietary intervention. SUBJECTS: Twelve healthy female subjects (mean age 25.2 y). INTERVENTION: Subjects were instructed to follow a standardized diet for 1 week, followed by 3 weeks consumption of the same diet enriched with small amounts of different tomato products providing as a mean 8 mg lycopene, 0.5 mg beta-carotene and 11 mg vitamin C per day. Plasma and lymphocyte concentrations of carotenoids, vitamin C and vitamin E were analysed. Ex vivo protection of lymphocyte DNA from oxidative injury produced by iron ions was evaluated by means of the Comet assay, and lipid peroxidation by HPLC analysis of malondialdehyde (MDA). RESULTS: Dietary intervention with tomato products increased lycopene concentration both in plasma (P < 0.001) and lymphocytes (P < 0.01). Vitamin C concentrations increased by approximately 35% in plasma (P < 0.05) and by approximately 230% in lymphocytes (P < 0.005). Vitamin E decreased significantly in plasma (P < 0.0001) but not in lymphocytes. Finally, there was an improved protection from DNA oxidative damage (P < 0.05) with no significant effect on MDA levels. CONCLUSIONS: Our results suggest that tomato products are not only good sources of lycopene but also sources of bioavailable vitamin C. A Regular intake of small amounts of tomato products can increase cell protection from DNA damage induced by oxidant species. This effect may originate from the synergism of different antioxidants present in tomatoes. SN - 0954-3007 UR - https://www.unboundmedicine.com/medline/citation/15054415/Lycopene_and_vitamin_C_concentrations_increase_in_plasma_and_lymphocytes_after_tomato_intake__Effects_on_cellular_antioxidant_protection_ L2 - http://dx.doi.org/10.1038/sj.ejcn.1601974 DB - PRIME DP - Unbound Medicine ER -