Summary:

- An Alzheimer's researcher at the University of Minnesota, Dr. Esther Eshkol, has been accused of doctoring images in her published research papers.
- The university has launched an investigation into the allegations, and Dr. Eshkol has announced her intention to leave the university.
- The allegations of image manipulation raise concerns about the integrity of the research and the potential impact on the scientific community's understanding of Alzheimer's disease.