Method of diagnosing breast cancer, colon cancer, melanoma and Alzheimer?s disease by detecting changes in the ultrastructure of keratin or collagen from a skin or nail sample by X-ray diffraction
Disclosed is a method of detecting prostate cancer, melanoma, colon cancer, breast cancer or Alzheimers disease in a subject, the method comprising exposing a nail sample of the subject to fibre X-ray diffraction, and detecting changes in the ultrastructure of the nail sample.