animal research

What is animal research?

Animal research is the use of animals in scientific experiments to:

• Study biological processes

• Investigate disease mechanisms

• Develop drugs and vaccines

• Test the safety and effectiveness of medical treatments

Why is animal research important in pharmacology?

allows scientists to:

• Understand how diseases affect living organisms

• Test whether drugs are effective

• Identify side effects and toxicity

• Predict how treatments may behave in humans

Whole organisms are needed because drugs affect multiple body systems simultaneously.

Why can’t scientists rely only on cell cultures or computer models?

Cell cultures and computer models cannot fully replicate:

• Whole-body physiology

• Organ interactions

• Hormonal systems

• Immune responses

• Behavioural responses

Animals provide a complete living system that allows researchers to study complex biological interactions.

Why is the ability to suffer ethically important?

If animals can suffer, humans have a moral responsibility to:

• Minimise pain

• Prevent unnecessary suffering

• Treat animals humanely

What is animal ethics?

Animal ethics is the study of:

• Whether humans should use animals

• How animals ought to be treated

• What moral responsibilities humans have toward animals

It examines whether causing harm to animals can ever be justified.

What is harm–benefit analysis?

Harm–benefit analysis is the ethical process of determining whether:

• The potential scientific or medical benefits
  outweigh

• The harms caused to animals

Which animal is most commonly used in UK medical research?

mice

Why are mice commonly used in research?

Mice are commonly used because they:

• Share many genes with humans

• Breed quickly

• Are small and inexpensive

• Have short life cycles

• Can be genetically modified

What are transgenic mice?

Transgenic mice are mice that have foreign genes inserted into their DNA

What are knockout mice?

genetically engineered mice in which specific genes have been removed

Why are zebrafish increasingly used in research?

Zebrafish are increasingly used because:

• Their embryos are transparent

• They develop rapidly

• They share many genes with humans

• They have regenerative abilities

What advantages do transparent zebrafish embryos provide?

Transparent embryos allow scientists to directly observe:

• Organ development

• Blood vessel formation

• Embryonic growth

without invasive procedures.

What are the three licences required under ASPA?

The triple licensing system includes:

1. Establishment Licence

2. Project Licence

3. Personal Licence

What is an Establishment Licence?

An Establishment Licence authorises:

• The institution or facility
  where animal research takes place.

It ensures proper housing and welfare standards.

What is a Project Licence?

A Project Licence authorises:

• A specific scientific research project

It outlines:

• Procedures

• Animal numbers

• Welfare protections

What is a Personal Licence?

A Personal Licence authorises an individual researcher to perform regulated procedures on animals.

What must researchers demonstrate before receiving a Personal Licence?

Researchers must demonstrate:

• Training

• Practical competence

• Knowledge of animal welfare

• Ability to perform procedures safely

What are the 3Rs?

The 3Rs are:

1. Replacement

2. Reduction

3. Refinement

They are principles designed to improve:

• Animal welfare

• Scientific quality

What is Replacement?

Replacement means avoiding or replacing animal use wherever possible

Give examples of Replacement methods

• Human cell cultures

• Computer models

• Organs-on-chips

• Invertebrate models

What is Reduction?

using the smallest number of animals necessary while still obtaining reliable scientific results.

How can Reduction be achieved?

• Better statistics

• Improved experimental design

• Sharing data/resources

• Imaging technologies

What is Refinement?

Minimising pain, suffering, distress, and lasting harm

Give examples of Refinement

• Anaesthesia

• Environmental enrichment

• Humane endpoints

• Training animals to cooperate

Why is animal welfare scientifically important?

Poor welfare can:

• Alter hormones

• Affect immunity

• Change behaviour

This can produce unreliable scientific results.

Why is pain assessment important in animal research?

Pain assessment is important to:

• Prevent unnecessary suffering

• Stay within legal limits

• Maintain ethical standards

What are common signs of pain in mice?

• Hunched posture

• Raised fur (piloerection)

• Weight loss

• Reduced activity

• Twitching

• Aggression

• Isolation from group

Why do some drugs fail despite successful animal testing?

Animals are not identical to humans.

Differences in:

• Metabolism

• Immunity

• Physiology

can cause different drug responses.

What technologies may reduce animal use in the future?

• AI

• Organs-on-chips

• Advanced computer modelling

• Human stem-cell systems

The Animal (Scientific Procedures) Act 1986

Regulates the use of protected animals on experimental or scientific procedure which may cause pain, suffering, distress or lasting harm to the animal.