Karolinska Institutet Jul 10 2025 Researchers at Karolinska Institutet have discovered a previously unknown molecule that may explain why people with type 2 diabetes often suffer from muscle weakness and muscle loss - a condition that has a major impact on quality of life and overall health. In the new study, published in Sciences Advances , researchers have identified a previously unknown molecule, TMEM9B-AS1, which may explain why people with type 2 diabetes often suffer from muscle weakness