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We participated in a space experiment, part of the National Space Development Agency of Japan (NASDA) Phase I Space Radiation Environment Measurement Program, conducted during the National Aeronautics and Space Administration (NASA) Shuttle/Mir Mission No. 6 (S/MM-6) project. The aim of our study was to investigate the effects of microgravity on the DNA(More)
We have already reported the antitumour effect of hydroxyapatite (HAP) containing anticancer drugs. In this study, we found an increased temperature effect around HAP particle(s) in an agar phantom in comparison with other areas when a Thermotron-RF8 (RF generator) was used for heating. Furthermore, it was revealed that the quantity of doxorubicin(More)
Researchers studied the effects of ion beams on cell lethality in two strains of Escherichia coli. Experiments were conducted on the wild-type strain and a DNA repair-deficient mutant strain that lacks the ability to repair DNA damage. A final aspect of the study was to examine the relationship between the linear energy transfer and relative biological(More)
We prepared hydroxyapatite (HAP) beads containing doxorubicin hydrochloride (DOX) and buthionine sulfoximine (BSO), as a DOX and BSO-HAP complex. When the complex was implanted into mice bearing sarcoma 180 tumor, the antitumor effect of the complex was intensified 1.5-fold, as assessed using tumor volume, on day 27 as compared with that of a complex of(More)
We participated in a space experiment conducted during the 2nd International Microgravity Laboratory Mission (IML-2) project. The aim of our study was to investigate the effects of space radiation, i.e., high-LET (linear energy transfer) cosmic radiation, on living organisms in the 'Realtime Radiation Monitoring Device (RRMD)'. The biological samples, dried(More)
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