Yumiko Nakamura

Fecal steroid excretion is increased in rats by oral administration of gymnemic acids contained in Gymnema sylvestre leaves.

Y. Tsumura, Y. Tonogai, Y. Nakamura, 1999, The Journal of nutrition.

Determination of the levels of isoflavonoids in soybeans and soy-derived foods and estimation of isoflavonoids in the Japanese daily intake.

Y. Tonogai, S. Tsuji, Y. Nakamura, 2000, Journal of AOAC International.