Harumi Ueda

Publications (2)4.17 Total impact

• Article: Byakkokaninjinto prevents body water loss by increasing the expression of kidney aquaporin‐2 and skin aquaporin‐3 in KKAy mice

  Takashi Aburada, Nobutomo Ikarashi, Mai Kagami, Yuhei Ichikawa, Megumi Sugitani, Ayaka Maniwa, Harumi Ueda, Takahiro Toda, Kiyomi Ito, Wataru Ochiai, Ryo Matsushita, Ken‐ichi Miyamoto, Kiyoshi Sugiyama
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  ABSTRACT: Byakkokaninjinto (BKN) is an herbal medicine used for the relief of diuresis, thirst and dermal pruritis that are associated with diabetes. The effects of BKN on the expression of aquaporins (AQPs) in the kidney, salivary gland and skin were investigated in order to clarify the mechanism of drug action. Seven-week-old KKAy mice were given feed containing 4.5% BKN for 4 weeks. Compared with the control group, BKN administration did not affect the blood glucose and insulin concentration. However, water intake and urine volume were significantly reduced. AQP2 protein expression in the kidney inner medullary was significantly increased after BKN administration. AQP3 mRNA and protein expression in skin tissue was significantly increased after BKN administration. However, BKN administration did not affect AQP5 mRNA expression in the salivary gland. These results suggest that BKN treatment relieves diuresis, thirst, and dermal pruritis by increasing kidney AQP2 expression and skin AQP3 expression. Copyright © 2010 John Wiley & Sons, Ltd.
  Phytotherapy Research 11/2010; 25(6):897 - 903. · 2.09 Impact Factor
• Article: Byakkokaninjinto prevents body water loss by increasing the expression of kidney aquaporin-2 and skin aquaporin-3 in KKAy mice.

  Takashi Aburada, Nobutomo Ikarashi, Mai Kagami, Yuhei Ichikawa, Megumi Sugitani, Ayaka Maniwa, Harumi Ueda, Takahiro Toda, Kiyomi Ito, Wataru Ochiai, Ryo Matsushita, Ken-ichi Miyamoto, Kiyoshi Sugiyama
  [show abstract] [hide abstract]
  ABSTRACT: Byakkokaninjinto (BKN) is an herbal medicine used for the relief of diuresis, thirst and dermal pruritus that are associated with diabetes. The effects of BKN on the expression of aquaporins (AQPs) in the kidney, salivary gland and skin were investigated in order to clarify the mechanism of drug action. Seven-week-old KKAy mice were given feed containing 4.5% BKN for 4 weeks. Compared with the control group, BKN administration did not affect the blood glucose and insulin concentration. However, water intake and urine volume were significantly reduced. AQP2 protein expression in the kidney inner medullary was significantly increased after BKN administration. AQP3 mRNA and protein expression in skin tissue was significantly increased after BKN administration. However, BKN administration did not affect AQP5 mRNA expression in the salivary gland. These results suggest that BKN treatment relieves diuresis, thirst, and dermal pruritis by increasing kidney AQP2 expression and skin AQP3 expression.
  Phytotherapy Research 11/2010; 25(6):897-903. · 2.09 Impact Factor