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- Publications
- Influence
Antitumor effect of cordycepin (3'-deoxyadenosine) on mouse melanoma and lung carcinoma cells involves adenosine A3 receptor stimulation.
- K. Nakamura, N. Yoshikawa, Y. Yamaguchi, S. Kagota, K. Shinozuka, M. Kunitomo
- Biology, Medicine
- Anticancer research
- 2006
An attempt was made to elucidate the molecular targetfor the antitumor effects of cordycepin (3'-deoxyadenosine) using non-selective and selective adenosine A1, A2a, A2b and A3 receptor agonists and… Expand
Ginkgo biloba extract markedly induces pentoxyresorufin O-dealkylase activity in rats.
- K. Umegaki, Keiko Saito, Y. Kubota, H. Sanada, K. Yamada, K. Shinozuka
- Chemistry, Medicine
- Japanese journal of pharmacology
- 1 December 2002
We examined the effect of Ginkgo biloba extract (GBE) on hepatic drug-metabolizing enzymes, particularly cytochrome P450 (CYP), in rats. Rats were fed a GBE-containing diet or received GBE by… Expand
Feeding of Ginkgo biloba extract (GBE) enhances gene expression of hepatic cytochrome P-450 and attenuates the hypotensive effect of nicardipine in rats.
- K. Shinozuka, K. Umegaki, +5 authors M. Kunitomo
- Medicine
- Life sciences
- 26 April 2002
Ginkgo biloba extract (GBE) has been used clinically for improving peripheral vascular diseases in France and Germany and is ingested widely as a herbal medicine in some countries. However, accurate… Expand
Effects of dietary ingredients on function and expression of P-glycoprotein in human intestinal epithelial cells.
- T. Okura, Michiko Ibe, K. Umegaki, K. Shinozuka, S. Yamada
- Chemistry, Medicine
- Biological & pharmaceutical bulletin
- 1 February 2010
The present study was conducted to investigate the functional and transcriptional modulation of P-glycoprotein (MDR-1) by several dietary ingredients (piperine, capsaicin, daidzein, genistein,… Expand
Bilobalide in ginkgo biloba extract is a major substance inducing hepatic CYPs
- K. Umegaki, Yuko Taki, +4 authors T. Sugiyama
- Chemistry, Medicine
- The Journal of pharmacy and pharmacology
- 1 June 2007
In a search for substances related to the marked induction of hepatic cytochrome P450 (CYP) by ginkgo biloba extract (GBE), mice were given either GBE (1000 mg kg−1) or fractions of GBE for 5 days.… Expand
Evaluation of blood pressure measured by tail-cuff methods (without heating) in spontaneously hypertensive rats.
- Y. Kubota, K. Umegaki, +4 authors K. Shinozuka
- Medicine
- Biological & pharmaceutical bulletin
- 1 August 2006
Conventional noninvasive blood pressure in conscious rats or mice are typically measured using the tail-cuff method after heating the animal. The goal of this study was to assess the validity of a… Expand
Ginkgo biloba extract-induced relaxation of rat aorta is associated with increase in endothelial intracellular calcium level.
- Y. Kubota, N. Tanaka, +5 authors M. Kunitomo
- Chemistry, Medicine
- Life sciences
- 5 October 2001
Ginkgo biloba extract (GBE) has been used clinically for improving peripheral vascular diseases in France and Germany. In the present study, to clarify the pharmacological properties of vasodilation… Expand
Role of adenosine in insulin-stimulated release of leptin from isolated white adipocytes of Wistar rats.
Leptin, the ob gene product that can decrease caloric intake and increase energy expenditure, is functionally released by insulin from adipose tissue. Adenosine is thought to be an important… Expand
Pretreatment with Ginkgo biloba extract weakens the hypnosis action of phenobarbital and its plasma concentration in rats
- Y. Kubota, K. Kobayashi, +7 authors K. Umegaki
- Chemistry, Medicine
- The Journal of pharmacy and pharmacology
- 1 March 2004
In a previous study, we found that orally administered Ginkgo biloba extract (GBE) induced hepatic cytochrome P450 (CYP) in rats, especially the CYP2B type. This fact suggested that GBE influenced… Expand
Characterization of mouse melanoma cell lines by their mortal malignancy using an experimental metastatic model.
- K. Nakamura, N. Yoshikawa, Y. Yamaguchi, S. Kagota, K. Shinozuka, M. Kunitomo
- Biology, Medicine
- Life sciences
- 4 January 2002
We characterized the metastatic ability and mortality of four different mouse melanoma cell lines, B16-F0, -F1, -F10 and -BL6. B16-F0 is the parent cell line. B16-F1 was obtained by a one-time… Expand