将毛发皮质醇激素作为反映慢性应激程度的黄金标准具有前瞻性和创新性。毛发皮质醇激素不仅可用于检测及估计动物慢性应激程度,且有助于了解动物体生理病理过程,并及时制定行之有效的健康管理策略。血液、唾液、尿液及乳汁中皮质醇激素含量作为反映急性应激程度的模型,被用于检测和建立持续的皮质醇激素昼夜循环规律研究。而毛发作为一个很好的补充模型却可以回顾性地反映慢性应激程度。毛发皮质醇激素作为反映慢性应激的生化指标不仅具有采样应激小、检测灵敏、方便的优点,而且是可遗传性状(h2=0.31),可以作为下丘脑—垂体—肾上腺轴(HPA轴)活性标记,进而利用其解释遗传变异对慢性应激中HPA轴活性变化的影响程度。作者综述了皮质醇激素与动物体健康的关系,慢性应激下机体调节机理及遗传适应改变,慢性应激评定指标研究进展,毛发作为皮质醇激素研究模型的研究进展,以及毛发皮质醇激素作为反映慢性应激的生化指标的限制与未来面对的挑战。
Making hair cortisol as the gold standard of reflecting chronic stress level is prospective and innovative.Hair cortisol not only can be used in detecting and estimating the chronic stress level of animals,but also can be benefit for understanding the body's physiological and pathological process and making effective health management strategy in time.Blood,saliva,urine and milk cortisol concentrations can be regarded as matrices for reflecting acute stress level as well,they have been used in detecting and establishing the diurnal profile of circulating cortisol studying.But hair which is a good supplementary matric can reflect the chronic stress level retrospectively.Hair cortisol as a reflection of the biochemical markers of chronic stress has the advantages of no invasive,relatively sensitive detection and convenient sampling stress,and hair cortisol is a heritable trait(h2=0.31).The utility of hair cortisol as a maker for HPA activity,and a useful tool for identifying genetic variation influences on long term individual differences in HPA activity.This article summarized the relationship between the cortisol and animal's healthy,the regulating mechanism and genetic adaptation change under chronic stress and the research progress of evaluation indicators during chronic stress,the research progress of hair as a matric of cortisol,thelimitations and challenge of regarding hair cortisol as the biochemical marker to reflect the chronic stress level in the future.