How do we apply animal studies to humans? On Instagram @AndreaHardyRD, I talk all about animal studies and whether or not they are important for the scientific process.

Image of @andreahardyrd Instagram post about animal studies

Last time I checked, we’re not rats…🐀👩🏼‍🔬⁠⠀
⁠⠀
So what’s the point of animal studies? Animal studies are INTEGRAL in the scientific process. ⁠⠀
⁠⠀
They help us:⁠⠀
1. Understand mechanisms of action⁠⠀
2. You can get answers more quickly in the lifespan of an animal⠀
3. Determine if something has POTENTIAL to translate to humans (‘preclinical’ -the first step in asking the question ‘could this be the same in humans?’)⁠⠀
4. Give us a model to explore things like toxicity ⁠⠀
5. Certain types of animals are more susceptible to human diseases, or can be bred in a way to make them more susceptible, ensuring we can design an experiment that tests exactly what we think it should be testing.⁠⠀
⁠⠀
For example – we know fibre is critical for gut barrier function, because animal studies allowed us to explore a mechanism of action.⁠⠀
⁠⠀
We could not know that a low fibre diet impaired barrier function and led to higher incidence of death when infected by a deadly pathogen in humans. That would have required us to:⁠⠀
⁠⠀
a) put humans on a fibre devoid diet⁠⠀
b) infect them with a deadly pathogen⁠⠀

Not an option- which is why animal models are an essential part of moving research forward.⁠⠀
⁠⠀
However! We CANNOT take a single animal study and apply the findings, hook, line, and sinker to humans- especially without disclosing the data came from animal models AND discussing limitations.⁠⠀
⁠⠀
We’re not rats. But, rats can be incredibly useful in moving from correlative data in humans to causative data – why? Because we can more thoroughly investigate the mechanism of action. ⁠