TAS2R38基因不僅影響我們對苦味的感知,還可能在更廣泛的健康領域發揮作用。
要是說生活的苦不是你想不吃就能不吃,那食物的倒是可以~
在日常生活中,我們對食物的喜好千差萬別,尤其是對苦味食物的接受度。你是否曾好奇,為什么有些人能輕松享受苦瓜、西蘭花的苦味,而另一些人卻對啤酒、紅酒的澀味避之不及?這背后其實是苦味受體基因TAS2R38在悄悄發揮作用——TAS2R38基因是苦味受體家族中的一員,它在我們的味覺感知中扮演著重要角色。
流行病學數據顯示,全球約75%的人能感知到PTC的苦味,但不同種族間存在差異。以往研究發現,TAS2R38基因的變異可能影響人們對某些食物的喜好,但具體關聯尚不明確,且研究結果存在不一致性。此外,TAS2R38基因還可能在其他健康問題中發揮作用,例如與慢性病風險相關。然而,這些潛在聯系尚未得到深入研究。
那么,TAS2R38基因究竟如何影響我們的飲食選擇和健康呢?
近日,一篇發表在國際雜志European Journal of Nutrition上的研究報告中,來自昆士蘭大學等機構的科學家們就通過全基因組關聯分析研究(GWAS)數據揭示了TAS2R38基因與飲食及健康結果之間的潛在關聯,并探索其之間新的聯系。
為了解開TAS2R38基因與飲食及健康之間的神秘聯系,研究人員采用了全基因組關聯分析(GWAS)這一強大工具。研究樣本來自英國生物樣本庫(UK Biobank),涵蓋了445,779名歐洲血統個體,為研究提供了強大的統計基礎。
研究團隊重點分析了TAS2R38基因的三個變異位點(rs713598、rs1726866和rs10246939),探索它們與139種食物喜好和29種食物攝入特征之間的關聯。同時,為了全面了解TAS2R38基因對健康的影響,研究人員利用OpenGWAS、Open Targets和GWAS Atlas三個在線平臺,搜索了該基因與多種健康結果之間的潛在聯系。
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揭示TAS2R38基因型和苯硫脲及丙硫氧嘧啶的味覺感知和飲食行為之間的關聯
研究結果揭示了TAS2R38基因變異對飲食偏好的顯著影響。苦味敏感等位基因攜帶者對某些苦味食物的偏好降低,例如辣根、咸味食物、葡萄柚和酒精(尤其是威士忌、紅葡萄酒和烈酒)。這或許可以解釋為什么一些人對這些食物和飲品敬而遠之。有趣的是,這些等位基因攜帶者對黃瓜和甜瓜的偏好卻有所增加,且茶的攝入量也有所上升。
更令人驚訝的是,研究還發現了TAS2R38基因與健康結果之間的新關聯。苦味敏感等位基因與腎功能受損的指標相關,例如血清肌酐水平升高和尿液脯氨酸甜菜堿水平降低。此外,這些等位基因還與雙相情感障礙風險增加有關。這些發現表明,TAS2R38基因的影響遠超味覺感知,可能深入到腎臟功能和心理健康領域。
這項研究的亮點在于揭示了TAS2R38基因型與飲食行為及健康結果之間的復雜關系。通過識別這些關聯,研究人員為未來的營養干預和健康管理提供了新的視角。例如,了解個體的苦味感知基因型可能有助于制定個性化的飲食計劃,從而優化健康結果。
然而,研究也存在局限性。樣本主要來自歐洲血統個體,可能無法完全推廣到其他人群。此外,飲食數據的收集依賴于問卷調查,可能存在回憶偏差。盡管如此,這項研究為探索基因、飲食與健康之間的相互作用邁出了重要一步。
總之,TAS2R38基因不僅影響我們對苦味的感知,還可能在更廣泛的健康領域發揮作用。隨著研究的深入,我們有望更好地理解這一苦味受體基因如何塑造我們的飲食選擇,并探索其在疾病預防和治療中的潛力。
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