唾液皮质醇捕捉圈养雌性簇毛猴(Sapajus apella)对急性应激源的内分泌反应。

IF 2 3区 生物学 Q1 ZOOLOGY American Journal of Primatology Pub Date : 2024-08-15 DOI:10.1002/ajp.23677
Andrew N. DeSana, Z. Morgan Benowitz-Fredericks, Aiko Amano, Regina P. Gazes
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引用次数: 0

摘要

测量皮质醇等糖皮质激素是探索灵长类动物行为、生理和健康之间关系的有用工具。随着皮质醇在血液中的循环,它会进入毛发、尿液、粪便和唾液等生物基质中。唾液采样是一种简单、无创的皮质醇测量方法,只需训练动物自愿提供样本即可轻松实现。血液中皮质醇的升高与唾液中皮质醇的升高之间的时间差可能因物种而异,因此必须对其进行描述,以确定适当的采样方案。在本研究中,我们研究了人工饲养的簇毛猴(Sapajus apella)在受到急性心理应激后唾液中皮质醇变化的时间过程。我们对八只自由活动的雌性簇毛猴进行了训练,让它们自愿采集干净的唾液样本。我们将它们暴露在兽医用捕捉网的急性应激源下,观察它们暴露前后的行为。我们在暴露前(0 分钟)和暴露后 30、45、60、75、90 和 120 分钟立即采集唾液样本。使用 Salimetrics 套件对唾液皮质醇进行量化。将个体的行为和皮质醇测量结果与未出现应激源的对照条件进行比较。僧帽猴对应激源表现出明显的行为反应,它们在应激源出现后表现出更多的凝视和踱步,觅食、非社交性玩耍和抓挠行为减少,提供唾液样本的意愿降低。出现应激源后,平均唾液皮质醇在30分钟时开始增加,并在120分钟的采样期间持续增加。皮质醇的绝对水平、皮质醇增加的时间和达到峰值的时间存在个体差异。我们的研究结果表明,没有一个单一的时间点可以可靠地用于评估不同个体对急性应激源的唾液皮质醇反应,因此我们建议收集较长的时间序列。
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Salivary cortisol captures endocrine response to an acute stressor in captive female tufted capuchin monkeys (Sapajus apella)

Measuring glucocorticoids such as cortisol is a useful tool for exploring relationships among behavior, physiology, and well-being in primates. As cortisol circulates in blood, it moves into biological matrices such as hair, urine, feces, and saliva. Saliva sampling is a simple, noninvasive method to measure cortisol that can be easily implemented by training animals to voluntarily provide samples. The temporal lag between elevation of cortisol in the blood and elevation of cortisol in saliva likely varies by species and must be characterized to identify appropriate sampling regimens. In the present study we characterized the time course of cortisol changes in saliva following an acute psychological stressor in captive tufted capuchin monkeys (Sapajus apella). We trained eight free-moving female tufted capuchin monkeys to voluntarily produce clean saliva samples. We exposed them to the acute stressor of a veterinary catch net and observed behavior pre and post exposure. We collected salivary samples immediately pre exposure (0 min) and 30, 45, 60, 75, 90, and 120 min after exposure. Salivary cortisol was quantified using a Salimetrics kit. Behavioral and cortisol measures were compared within individuals to a control condition in which no stressor was presented. Capuchins showed a clear behavioral response to the stressor by demonstrating increased freezing and pacing, decreased feed foraging, nonsocial play, and scratching, and decreased willingness to provide saliva samples after stressor presentation. After stressor presentation, average salivary cortisol began to increase at 30 min and continued to increase through the 120 min sample period. There was individual variation in absolute cortisol levels, the timing of the cortisol increase, and the timing of the peak. Our results suggest that no single time-point can be reliably used to evaluate salivary cortisol response to an acute stressor across individuals, and instead we recommend the collection of a prolonged time series.

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来源期刊
CiteScore
4.50
自引率
8.30%
发文量
103
审稿时长
4-8 weeks
期刊介绍: The objective of the American Journal of Primatology is to provide a forum for the exchange of ideas and findings among primatologists and to convey our increasing understanding of this order of animals to specialists and interested readers alike. Primatology is an unusual science in that its practitioners work in a wide variety of departments and institutions, live in countries throughout the world, and carry out a vast range of research procedures. Whether we are anthropologists, psychologists, biologists, or medical researchers, whether we live in Japan, Kenya, Brazil, or the United States, whether we conduct naturalistic observations in the field or experiments in the lab, we are united in our goal of better understanding primates. Our studies of nonhuman primates are of interest to scientists in many other disciplines ranging from entomology to sociology.
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