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(Yeun hwa Gu),(Hasegawa Takeo),(Suzuki Ikukatsu),(Hayashi Ikuo),(Kyoo Seok Ahn),(Tawaraya Hitoshi) 경희대학교 한의학연구소 2000 JOURNAL OF ORIENTAL MEDICINE Vol.5 No.1
In this study abundant malformations of ICR mice in the organogenesis stages were observed and the radioprotection effect of Macro-Glucan(β-1-3glucan) was shown. This research examined the radioprotection effect of Macro-Glucan(β-1-3glucan) and its terato
Enhancement of Radioprotection and Anti-Tumor Immunity by Yeast-Derived β-Glucan in Mice
Yoshimi Niwano,Yasuyuki Takagi,Takashi Nakamura,Takeo Hasegawa,Ikukatsu Suzuki,Masami Oshima,Hitoshi Tawaraya,Yeun-hwa Gu 한국식품영양과학회 2005 Journal of medicinal food Vol.8 No.2
Intraperitoneal injection of .-glucan was shown to greatly delay mortality in mice exposed to whole-bodyX-ray radiation and tumor growth in tumor-bearing mice. Since the leukocyte and lymphocyte numbers were increased by asingle dose of .-glucan, the radioprotective effect of .-glucan is probably mediated, at least in part, by a hemopoietic actionin irradiated mice. In addition, both natural killer (NK) and lymphokine-activated killer (LAK) activities were significantlyincreased by repeated doses of .-glucan. Augmented immunological activity as seen in increased NK and LAK activity by .-glucan seems to play a role in preventing secondary infections associated with irradiation, and probably contributes to theattenuated tumor growth in tumor-bearing mice through enhanced anti-tumor immunity. These results suggest that .-glucanmay be a promising adjunct treatment for cancer patients receiving radiotherapy.
Radioprotection Effects and the Anti-Cancer Effects of the Species (Miroku-Tea)
Gu, Yeun-Hwa,Suzuki, Ikukatu,Hasegawa, Takeo,Hayashi, Ikuo,Hitoshi, Tawaraya,Ahn, Kyoo-Seok INSTITUTE OF ORIENTAL MEDICINE KYUNG-HEE UNIVERSIT 2001 JOURNAL OF ORIENTAL MEDICINE Vol.6 No.1
In recent years the effectiveness of species (Miroku-Tea) as an anti-cancer, anti0biotic effect and anti-virus effect has become more widely known. Furthermore the beneficial effects of species (Miroku-Tea) leaves have also been studied. In this study, we investigated measurement of blood cells, the NK cell activity, the radio-protective and anti-cancer effects of species (Miroku-Tea) extract. The leucocytes and the lymphocyte were transietnly increased after injection of species (Miroku-Tea). Anti-tumor effect was occurred after the injuection of species (Miroku-Tea). NK cells activity increased 2 times after the injection of species (Miroku-Tea) compared with the control group. Radiation protection occurred from the inhibition of body weight loss and also a prolonged the surviving fraction after the injection of species (Miroku-Tea).
A Study of the radioprotection effect of macro-glucan (β-1-3glucan) on thefetuses of ICR mice
Gu, Yeun-hwa,Hasegawa, Takeo,Suzuki, Ikukatsu,Hayashi, Ikuo,Ahn, Kyoo-Seok,Tawaraya, Hitoshi INSTITUTE OF ORIENTAL MEDICINE KYUNG-HEE UNIVERSIT 2000 JOURNAL OF ORIENTAL MEDICINE Vol.5 No.1
In this study abundant malformations of ICR mice in the organogenesis stages were observed and the radioprotection effect of Macro-Glucan(β-1-3glucan) was shown. This research examined the radioprotection effect of Macro-Glucan(β-1-3glucan) and its teratogenic properties. The reason it has a preventive effect on a tall fetus was examined in the research. We examined the determination stage (organogenesis), and pointed to malformation toward the radiation in the enviornmental agent to the malformaiton. Moreover, we examined the cellularis level of the embryos toward the radiation and analyzed the mechanism of the protection effect of the Macro-Glucan(-1-3glucan) from malformation induction by the radiation. Therefore, the purpose of this research is to get a foundation of data of the radioprotection effect of Macro-Glucan(-1-3glucan). This study produced the following results : It was made clear that Macro-Glucan(-1-3glucan) had a radioprotection effect against embryonic death. Radioprotection effect was recognized as the teratogenesis rate by Macro-Glucan(-1-3glucan)'s administering it before the exposure. Therefore, the subject faced radiation exposure by the Macro-Glucan(-1-3glucan) administration, and radiological protecting effect was made clear.
Radioprotection Effects to the Radiation Side Effect in EEM (Extracts of Edible Mushrooms)
Gu, Yeun-Hwa,Masaki, Matsumori,Suzuki, Ikukatu,Takeo, Hasegawa,Yuuichi, Ukawa,Hitoshi, Tawaraya,Ikuo, Hayashi,Ahn, Kyoo-Seok INSTITUTE OF ORIENTAL MEDICINE KYUNG-HEE UNIVERSIT 2003 JOURNAL OF ORIENTAL MEDICINE Vol.6 No.1
Presently, raditherapy is often used alone or in combination with anti-cancer medicine as a treatment for cancer. Chemosynthesis has been used as a radiation protection medicine. But, its use has been restricted due to serious side effects. ICR mice have often been used for malformation experiments as they were used in this research. Here, EEM (extracts of edible mushrooms (and extraction from Flammulina velutires and lyuophyllum ulmarium)), a natural product, was used as a radioprotective agent and its effects were examined. A decline in the fetus malformation rate was recognized when giveing EEM before the radiation irradiation. Moreover, a repression in the decrease of fetus weight was recognized, and the effect on radiation protection of EEM was explained at the individual level. And, I had the effect on protection that faced a corpuscle cell by the radiation by giving EEM was explained in the same way too. As for the cell level as well, it was proved that there was an effect on protection against radiation irradiation in the same way as the individual level. Furthermore, an examination was done about the effects on the external malformation to the radiation, the embryonic death rate and the sensitivity of the lymphocyte at the organogenesis stage. Furtheromore, the study was done about the effects on the malformation to the radiation, the embryonic death rate and the sensitivity of the lymphocyte at the fetus of the organogenesis stage.