血25-基维生素D度的年龄相关变化可能使未成熟猫的维生素D状况评估复杂化
Robert C Backus1, Devon C Ueda1
1Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, University of Missouri, Columbia, MO, United States.
Frontiers in veterinary science
|May 17, 2024
概括
小猫的维生素D状况复杂;血25-氧维生素D (25 (OH) D) 水平随着年龄的增长而变化,可能会影响诊断. 其他维生素D代谢物也会影响准确度.
科学领域:
- 兽医医学 兽医医学 兽医医学
- 营养生物化学 营养生物化学
- 比较生理学比较生理学
背景情况:
- 评估猫的维生素D状态通常依赖于与成人参考范围相比的血25-氧维生素D (25 (OH) D) 度.
- 由于潜在的发育变化,这种方法对未成熟的猫 (小猫) 的有效性是不确定的.
研究的目的:
- 为了研究25 (OH) D和其他维生素D代谢物的血度与年龄相关的变化,在发育中的小猫中.
- 确定这些变化是否会影响年幼猫的标准维生素D状态评估的可靠性.
主要方法:
- 小猫从断奶开始被养标准的生长饮食.
- 在多个时间点 (12周至1年) 测量了25 (OH) D,24,25-二氧维生素D (24,25 (OH) 2D) 和的血度.
- 量化涉及HPLC和RIA技术.
主要成果:
- 血3-epi-25 (OH) D和25 (OH) D度随着年龄的增长显著增加 (1年内增加1-2倍).
- 年轻小猫的24,25 (OH) 2D度高于25 (OH) D,但下降1年.
- 没有观察到明显的性别差异或维生素D2代谢物变异.
结论:
- 使用血25 (OH) D的小猫维生素D状况的标准评估可能是不可靠的,因为与年龄相关的变化.
- 3-epi-25 (OH) D和高24,25 (OH) 2D度的存在可能会干扰准确的量化和解释.
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