Welfare issues of genetically modified animals

Area of Science:

• Biomedical Research
• Animal Models
• Genetics

Background:

• Genetically engineered animals provide precise models for studying physiology and disease.
• Mutant animal models offer improved accuracy for pathogenesis and treatment studies.
• The use of genetically engineered animals, especially mice, is increasing in biomedical research.

Purpose of the Study:

• To explore the benefits and challenges of using genetically engineered animals in research.
• To highlight the role of mutant animals in advancing disease understanding and therapeutic strategies.
• To emphasize the shared responsibility in ensuring animal welfare during research.

Main Methods:

• Utilizing mutant animal models for enhanced disease research.
• Searching databases like TBASE for established mutant lines.
• Implementing surveillance systems and phenotype assessments for newly created lines.
• Employing welfare strategies such as condition treatment and gene expression control.

Main Results:

• Genetically engineered animals offer more accurate disease models and precise pathogenesis studies.
• Increased use of mice as models is replacing more sentient species and improving research quality.
• The study of genetically engineered animals may lead to a decrease in the overall number of animals used in research.
• Challenges exist in protocol review and care for genetically altered animals.

Conclusions:

• Genetically engineered animals are vital for advancing physiological and disease research, offering hope for improved patient therapies.
• Shared responsibility among institutional animal care and use committees, veterinary staff, and researchers is essential for addressing welfare concerns.
• Proactive monitoring, phenotype assessment, and welfare interventions are critical for the ethical use of genetically engineered animals in research.