在毒理学研究中,减少Cynomolgus的禁食时间提高了动物福利
Adeyemi O Adedeji1, Tony Pourmohamad1, Niraj Tripathi2
1Genentech, Inc., South San Francisco, California, USA.
Toxicologic pathology
|September 13, 2023
概括
禁食的Cynomolgus子用于毒理学研究可以缩短到4小时. 长时间的禁食会增加动物的压力,脱水,并影响血糖,对福利产生负面影响.
科学领域:
- 兽医毒理学 兽医毒理学
- 灵长类动物研究研究
- 动物福利科学 动物福利科学
背景情况:
- 禁食通常用于毒理学研究,以减少临床病理的变异性.
- 然而,禁食可能会在已经接触过试验品的动物中引发压力.
- 不同的禁食时间对Cynomolgus子福利的影响还不清楚.
研究的目的:
- 评估不同禁食时间对Cynomolgus子福利的影响.
- 评估与禁食时间相关的临床病理终点.
- 为了确定毒理学研究的最佳禁食协议.
主要方法:
- 对Cynomolgus子进行了不同时间的禁食 (长达20小时).
- 测量了传统和辅助临床病理学参数.
- 监测动物福利指标,包括压力,脱水和血糖.
主要成果:
- 大多数临床病理终点在不同的禁食时间中保持了可比性.
- 更长的禁食时间 (长达20小时) 导致压力增加,脱水,血糖降低.
- 较短的禁食 (4小时) 显示甘油三糖的变化更高.
- 长时间的禁食对动物福利产生了负面影响.
结论:
- 在大多数对Cynomolgus子的毒理学研究中,4小时的禁食期可能足够.
- 长时间禁食会对动物福利和关键临床参数产生负面影响.
- 例外包括葡萄糖,脂质或口服生物可用性是关键安全性或药理动力学评估的研究.
更多相关视频
04:28Utilizing an Orally Dissolving Strip for Pharmacological and Toxicological Studies: A Simple and Humane Alternative to Oral Gavage for Animals
Published on: March 23, 2016
12.7K
08:06Assessment of the Metabolic Effects of Isocaloric 2:1 Intermittent Fasting in Mice
Published on: November 27, 2019
9.0K
相关概念视频
Bioavailability Study Design: Healthy Subjects Versus Patients
Bioavailability studies are essential for evaluating a drug's therapeutic efficacy and understanding its absorption patterns under various physiological conditions. Conducting such studies on target patient populations provides more relevant data by simulating real-world disease states. However, practical challenges often necessitate the use of young, healthy adult volunteers as study subjects.Patients may exhibit altered drug absorption patterns due to the effects of the disease itself,...
Toxicity Testing in Animals
Toxicity tests in animals are grounded on two main assumptions: first, the effects observed in laboratory animals can be extrapolated to humans, especially when adjusted for body surface area; second, high-dose exposure in animals is essential to identify potential human hazards from lower doses. This is based on the quantal dose-response concept, which faces the challenge of extrapolating results from relatively few test animals to much larger human populations. For example, a 0.01% incidence...
