Abstract: The invention relates to 4-hydroxyisoleucine, isomers, analogs, lactones, salts, and prodrugs thereof, to processes for their preparation, and to pharmaceutical compositions comprising the same. More particularly, the invention relates to the use of those compounds in the prevention and treatment of disorders of fat metabolism and related syndromes. The invention further relates to the use of those compounds in the prevention and treatment of obesity and related syndromes including, but not limited to, the cosmetic treatment of a mammal in order to effect a cosmetically beneficial loss of body weight, and more particularly loss of body fat.

Abstract: The invention concerns the use of monohydroxy or polyhydroxy amino acids, and the lactone forms thereof for making medicines with insulin-analogue and/or insulin-sensitizing effects on peripheral tissues targeted by insulin, and more particularly the use thereof for making medicines for treating and preventing insulin-resistance.

Abstract: The invention concerns the use of monohydroxy or polyhydroxy amino acids, and the lactone forms thereof for making medicines with insulin-analogue and/or insulin-sensitizing effects on peripheral tissues targeted by insulin, and more particularly the use thereof for making medicines for treating and preventing insulin-resistance.

Abstract: This invention relates to methods and compositions for treating diabetes, which involve the use of hydroxylated amino acids, such as 4-hydroxyisoleucine, and one or more additional antidiabetic agents.