对n-3多不和脂肪酸和25-氧维生素D3的补充营养会影响肉肠道结构和功能
Tao Sun1, Sahil Kalia1, Keith J Ou1
1Department of Animal Science, Cornell University, Ithaca, NY, United States.
The Journal of nutrition
|November 26, 2025
概括
补充肉用多可萨赫萨酸 (DHA),埃可萨酸 (EPA) 和维生素D (VD) 改善了肠道完整性和营养物质运输体表达. 然而,这些超营养物降低了鸟类的氧化还原系统的调节.
科学领域:
- 禽类的营养和生理学
- 胃肠道的健康状况
- 营养物质的新陈代谢
背景情况:
- 饮食中高水平的多可萨赫萨酸 (DHA),埃可萨酸 (EPA) 和25-氧维生素D3对肠健康的影响尚不清楚.
- 研究这些影响对于优化肉生产和产品质量至关重要.
研究的目的:
- 评估DHA,EPA和维生素D (VD) 的超营养剂量对肉肠道形态,完整性,炎症反应,氧化还原状态和营养载体的影响.
- 为了确定补充剂和硫酸挑战后小肠中的分子和生物化学变化.
主要方法:
- 肉小被食饮食补充了DHA,EPA和/或VD三周.
- 肠道完整性通过使用光素异硫酸酸的德克斯透度进行评估.
- 在挑战后的十二指肠,阴茎肠和阴茎肠中分析了基因表达 (mRNA),蛋白质水平和关键肠道生物标志物的酶活性.
主要成果:
- DHA,DHA + EPA和DHA + VD补充剂在硫酸挑战后降低了肠道透性.
- 这些饮食增强了小的高度,并增加了葡萄糖和氨基酸载体的表达.
- 与双营养组合相比,联合DHA + EPA + VD补充剂显示出更大的炎症基因表达抑制,同时也降低了催化酶和超氧化物转化酶-1的调节.
结论:
- DHA,EPA和VD的超营养对肉的肠道形态,完整性和营养物质运输基因表达有积极的影响.
- 这些补充剂降低了肠道氧化还原系统的调节,这表明抗炎作用和抗氧化能力之间的权衡.
- 这些发现支持使用这些营养素提高产品质量的生物安全性和代谢益处.
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