Impact of Genetic and Environmental Determinants of Taste with Food Preferences in Older Adults
Impact of Genetic and Environmental Determinants of Taste with Food Preferences in Older Adults
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DOI：
10.1080/01639360802261920
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发表时间：
2008-01-01
期刊：
影响因子：
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通讯作者：
El-Sohemy, Ahmed
中科院分区：
文献类型：
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作者：
Navarro-Allende, Alejandra;Khataan, Nora;El-Sohemy, Ahmed
检测苦味化合物（如苯硫脲（PTC）或其衍生物6-正丙基硫氧嘧啶（PROP））的能力的个体差异长期以来被认为是一种常见的遗传性状。这一观察结果被提出来解释人口饮食习惯的一些变异性。TAS 2 R受体基因家族的几个成员编码舌头上的味觉受体，TAS 2 R38的遗传多态性与PTC和PROP.TAS2R38基因型和食物偏好之间的关联的感知显着差异已被发现在儿童中，但没有协会已被报道在老年人。这一点，沿着随着年龄的增长，品尝某些食物的能力下降，表明环境因素比遗传因素对老年人食物偏好的影响更重要。老年人可能更倾向于尝试和接受新的食物，因为多年来形成的与饮食有关的态度和信念。
Individual differences in the ability to detect bitter tasting compounds, such as phenylthiocarbamide (PTC) or its derivative, 6-n-propylthiouracil (PROP) has long been recognized as a common genetic trait. This observation has been proposed to explain some of the variability in the dietary habits of a population. Several members of the TAS2R receptor gene family encode taste receptors on the tongue, and genetic polymorphisms of TAS2R38 have been associated with marked differences in the perception of PTC and PROP. An association between TAS2R38 genotype and food preferences has been found among children, but no associations have been reported among older adults. This, along with the decreased ability to taste certain foods with increasing age, suggests that environmental factors are more important than genetic influences in food preferences among the elderly. The elderly may be more inclined to try and accept novel foods because of diet-related attitudes and beliefs that are formulated throughout the years.