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Does exposure to thyroxine-mimics cause feline thyroid hyperplasia?
  1. K. E. Hill1 and
  2. I. C. Shaw2
  1. 1Institute of Veterinary, Animal and Biomedical Sciences, Massey University, Private Bag 11-222, Palmerston North, New Zealand 4442 e-mail: K.Hill{at}
  2. 2Department of Chemistry, University of Canterbury, Private Bag 4800, Christchurch, New Zealand 8140 e-mail:{at}


Over the past four decades, the incidence of feline thyroid hyperplasia (FTH) has steadily increased. Concomitantly, cats' exposure to thyroxine (T4)-mimicking environmental contaminants and food additives has also increased. Kate Hill and Ian Shaw hypothesise that the two could be linked.

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