MiniPigs have been used as a standard animal model for drug development for the following reasons:
(1) MiniPigs are suitable as an animal model for human CYP3A enzyme and its related drug metabolism studies
(2) The porcine model is a suitable animal model for ocular research
(3) Pig skin is very similar to humans in morphology, physiology, and pharmacology.
(4) Development of a small pig animal model for ARS is essential for understanding radiation-induced damage to various organs and tissues
(5) Pig models can evaluate drug safety and efficacy
1. The role of Minipig animal models in Pharmacokinetics studies
Methods: Bama mini-pigs were used as experimental animals for 12 weeks, and twice a week, the blood samples were collected at different time points after the administration. The pharmacokinetic parameters were calculated by measuring the concentration of gestrinone in the plasma of mini-pigs after multiple administrations. The plasma samples were extracted by cyclohexane and analyzed by LC-MS / MS.
2. The role of Minipig animal models in Toxicology studies
3. The role of Minipig animal models in Formulation development
Shortcomings
Despite the consensus on the superiority of mini-pigs as human models, they have not been used much in experiments and are far from taking the place of naïve beagle dog in toxicology studies.
References:
[1] Jian Li. Characterization of Cytochrome P450 Isozymes in Bama Miniature pigs and Guizhou miniature pigs:Comparison with Human Analogs. DOI: 10.7666/d.y959492.
[2] Kristi L Helke, Keith N Nelson, et al. Pigs in Toxicology: Breed Differences in Metabolism and Background Findings. Toxicol Pathol. 2016 Jun;44(4):575-90. doi: 10.1177/0192623316639389.
[3] Xiangjie Guo, Zhao Li, et al. Pharmacokinetics study of gestrinone capsules in Bama minpigs. Chinese Journal of Pharmaceutical Analysis. 2017,37(7):1181-1187. DOI:10.16155/j.0254-1793.2017.07.04.
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