Therapeutic or preventing agent for the diseases caused by a decrease in the expression level of the klotho protein

摘要

The present invention provides a therapeutic or preventing agent for diseases caused by a decrease in the expression level of Klotho protein in animals or humans and a feed or food and drink for the treatment or prevention of such diseases, which comprise ornithine or a salt thereof as an active ingredient. Also provided are a therapeutic or preventing agent for premature aging-like syndrome of homozygous klotho mutant animals and a feed for the treatment or prevention of the syndrome, which comprise ornithine or a salt thereof as an active ingredient, as well as a method for the treatment or prevention of premature aging-like syndrome of homozygous klotho mutant animals which comprises feeding the animals with the above feed.