Steiner J.M., Peterson M.A., Ruaux C.G., et al.
Conference Proceedings, (2005). American College of Veterinary Internal Medicine, Baltimore:
Cats with hyperthyroidism commonly show vomiting and/or diarrhea, which are believed to be clinical signs due to direct effects of thyroid hormones on the gastrointestinal tract. However, signs of gastrointestinal disease do not resolve in some cats after 131I treatment. The goal of this study was to objectively assess intestinal function in cats with hyperthyroidism by measuring serum concentrations of cobalamin and folate.