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Diabetes, Vol 48, Issue 9 1794-1800, Copyright © 1999 by American Diabetes Association
T-1095, an inhibitor of renal Na+-glucose cotransporters, may provide a novel approach to treating diabetes
A Oku, K Ueta, K Arakawa, T Ishihara, M Nawano, Y Kuronuma, M Matsumoto, A Saito, K Tsujihara, M Anai, T Asano, Y Kanai and H Endou
Discovery Research Laboratory, Tanabe Seiyaku Company Ltd., Saitama, Toda, Japan.
T-1095A and T-1095 are synthetic agents derived from phlorizin, a specific
inhibitor of Na+-glucose cotransporters (SGLTs). Unlike phlorizin, T-1095
is absorbed into the circulation via oral administration, is metabolized to
the active form, T-1095A, and suppresses the activity of SGLTs in the
kidney. Orally administered T-1095 increases urinary glucose excretion in
diabetic animals, thereby decreasing blood glucose levels. Indeed, the
postprandial hyperglycemia after a meal load was shown to be suppressed by
this compound in streptozotocin (STZ)-induced diabetic rats. With long-term
T-1095 treatment, both blood glucose and HbA1c levels were reduced in
STZ-induced diabetic rats and yellow KK mice. In addition, there was
amelioration of abnormal carbohydrate metabolism, i.e., hyperinsulinemia
and hypertriglyceridemia, and of the development of microalbuminuria, in
yellow KK mice. Thus, T-1095 may be a useful antidiabetic drug, providing a
novel therapeutic approach for diabetes.

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Copyright © 1999 by the American Diabetes Association.
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