Sarkar Purnima Dey, Gupt Trapti, Sahu Ashok
MGM Medical College, Indore.
J Assoc Physicians India. 2012 Jul;60:17-9.
Lycopene is a phytochemical, found in tomatoes having singlet oxygen quenching ability higher than other antioxidants, participates in most of chemical reactions to protect critical cellular biomolecules. Present study is to analyze effect of tomato's lycopene, synthetic lycopene, its placebo form in patients of OS.
Study includes 45 patients having oxidative stress, age 40-60 years and 30 age and sex matched healthy control. Blood samples were collected at the enrollment, end of 2 weeks of lycopene restricted diet and after 10 weeks of lycopene supplementation. Oxidative stress biomarkers MDA, SOD, GPX, GR, GSH, Catalase, vitamin C and E were measured.
Results of study revealed decreased lipid peroxidation and OS after various forms of lycopene supplementation but comparative analysis showed significant increase in OS biomarkers except MDA in patients receiving synthetic lycopene as compare to natural and placebo form.
Dietary intake of tomato lycopene is beneficial to fight against OS but in the synthetic form it is more bioavailable and more effective against OS.
番茄红素是一种植物化学物质,存在于番茄中,其单线态氧猝灭能力高于其他抗氧化剂,参与大多数化学反应以保护关键的细胞生物分子。本研究旨在分析番茄红素、合成番茄红素及其安慰剂形式对氧化应激(OS)患者的影响。
研究纳入45例年龄在40 - 60岁的氧化应激患者以及30例年龄和性别匹配的健康对照。在入组时、番茄红素限制饮食2周结束时以及番茄红素补充10周后采集血样。检测氧化应激生物标志物丙二醛(MDA)、超氧化物歧化酶(SOD)、谷胱甘肽过氧化物酶(GPX)、谷胱甘肽还原酶(GR)、谷胱甘肽(GSH)、过氧化氢酶、维生素C和维生素E。
研究结果显示,补充各种形式的番茄红素后脂质过氧化和氧化应激降低,但比较分析表明,与天然和安慰剂形式相比,接受合成番茄红素的患者除MDA外,氧化应激生物标志物显著增加。
饮食摄入番茄红素有助于对抗氧化应激,但合成形式的番茄红素生物利用度更高,对氧化应激更有效。