Lupus kidney clue found in rare antibody?

This study looked at whether a specific antibody, called anti-GBM, could be a useful marker for lupus nephritis—a serious kidney complication of lupus. Researchers tested stored blood samples from 100 people with lupus (some with kidney issues, some without) and compared them to healthy donors. The goal was to see if higher levels of this antibody appear more often in those with kidney involvement, which could lead to earlier detection.