Cantani A
Division of Allergy and Clinical Immunology, Department of Pediatrics, University "La Sapienza", Rome, Italy.
Eur Rev Med Pharmacol Sci. 2009 Jan-Feb;13(1):41-50.
The development of techniques devised for the genetic manipulation of foods poses new risks for children with food allergy (FA). The introduction of foreign allergenic proteins from different foods into previously tolerated foods may trigger allergic reactions, often complicating with anaphylactic shock in a subset of allergic babies. Children with FA, even if subjected to preventative diets, always challenge the risk of developing allergic manifestations after unintentional intake of a non tolerated food in restaurant settings, with relatives or schoolmates, etc, where product labelling is necessarily lacking. The introduction of potentially allergenic proteins into foods generally considered safe for allergic children can be done deliberately, by either substantially altering the food ingredients, or by genetic manipulation which change the composition or transfer allergens, or unintentionally by qualitycontrol failures, due to contaminations in the production process, or to genetic mismanipulation. There is a controversy between multinationals often favored by governments and consumer association resistance, thus an equidistant analysis poses some unprecedented impediments. The importance of FA and the potential of transgenic plants to bring food allergens into the food supply should not be disregarded. The expression in soybeans of a Brazil nut protein resulted in a food allergen ex-pressed in widely used infant formulas, so paving the way to an often reported multinational debacle. Genetic engineering poses innovative ethical and social concerns, as well as serious challenges to the environment, human health, animal welfare, and the future of agriculture. In this paper will be emphasized practical concepts more crucial for pediatricians.
为食品基因操作设计的技术发展给食物过敏(FA)儿童带来了新风险。将来自不同食物的外源致敏蛋白引入先前可耐受的食物中可能引发过敏反应,在一部分过敏婴儿中常并发过敏性休克。患有FA的儿童,即使遵循预防性饮食,在餐厅、与亲戚或同学等场合无意中摄入不耐受食物后,仍始终面临出现过敏表现的风险,因为这些地方必然缺乏产品标签。将潜在的致敏蛋白引入通常认为对过敏儿童安全的食物中,既可能是通过大幅改变食物成分或通过基因操作改变成分或转移过敏原而故意为之,也可能是由于生产过程中的污染或基因操作失误等质量控制失败而无意中发生。跨国公司往往受到政府支持,与消费者协会的抵制之间存在争议,因此进行中立分析存在一些前所未有的障碍。FA的重要性以及转基因植物将食物过敏原带入食品供应的可能性不应被忽视。巴西坚果蛋白在大豆中的表达导致一种食物过敏原出现在广泛使用的婴儿配方奶粉中,从而引发了一场常被报道的跨国灾难。基因工程引发了新的伦理和社会问题,以及对环境、人类健康、动物福利和农业未来的严峻挑战。本文将强调对儿科医生更为关键的实用概念。