April 11th is World Parkinson's Day each year. Parkinson's Disease (PD) is one of the most common neurological disorders, second only to Alzheimer's disease, and is also the fastest-growing neurodegenerative disease globally. Currently, there are over 6.2 million patients worldwide, and this number is expected to exceed 25.2 million by 2050.

Ming, there are too many pitfalls in mouse breeding. Can you provide a comprehensive summary? Let's discuss this from the perspectives of breeding failure and infertility.

Ming, I'm preparing to order genetically engineered mice. For background strain selection, what's the difference between C57BL/6N and C57BL/6J? Actually, B6N and B6J share 99% identical gene sequences, and they are interchangeable for most experiments, with only minor sequence differences. Let's explore this in detail.

Ming, how do I design primers for qPCR? Primer design is a crucial step for successful qPCR experiments. The National Center for Biotechnology Information (NCBI) website (https://www.ncbi.nlm.nih.gov/) is a great tool for this purpose.

Ming, what's the difference between conventional KI mice and Rosa26/H11 KI mice? First, let's understand the genomic locations of Rosa26 and H11. Rosa26 is located on mouse chromosome 6 (human homologous locus is on chromosome 3p25.3), while H11 is located on mouse chromosome 11 (human homologous locus is on chromosome 17q21.31).