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Shimura H.,Yamanashi University | Itoh K.,The Kitasato Institute | Sugiyama A.,Toho University | Ichijo S.,Yamanashi University | And 8 more authors.
PLoS ONE | Year: 2012

Large quantities of radionuclides have leaked from the Fukushima Daiichi Nuclear Power Plant into the surrounding environment. Effective prevention of health hazards resulting from radiation exposure will require the development of efficient and economical methods for decontaminating radioactive wastewater and aquatic ecosystems. Here we describe the accumulation of water-soluble radionuclides released by nuclear reactors by a novel strain of alga. The newly discovered green microalgae, Parachlorella sp. binos (Binos) has a thick alginate-containing extracellular matrix and abundant chloroplasts. When this strain was cultured with radioiodine, a light-dependent uptake of radioiodine was observed. In dark conditions, radioiodine uptake was induced by addition of hydrogen superoxide. High-resolution secondary ion mass spectrometry (SIMS) showed a localization of accumulated iodine in the cytosol. This alga also exhibited highly efficient incorporation of the radioactive isotopes strontium and cesium in a light-independent manner. SIMS analysis showed that strontium was distributed in the extracellular matrix of Binos. Finally we also showed the ability of this strain to accumulate radioactive nuclides from water and soil samples collected from a heavily contaminated area in Fukushima. Our results demonstrate that Binos could be applied to the decontamination of iodine, strontium and cesium radioisotopes, which are most commonly encountered after nuclear reactor accidents. © 2012 Shimura et al.

Meiji Seika Pharma Co. and The Kitasato Institute | Date: 2013-06-13

An objective of the present invention is to provide novel cyclic depsipeptide derivatives and harmful organism control agents including the same as each other. Specifically, the present invention provides compounds represented by formula (1) or stereoisomers thereof, harmful organism control agents containing them, and a process for producing them.

University of Arkansas, The Kitasato Institute and Montefiore Medical Center | Date: 2013-02-11

Methods of delivering therapeutic agents by administering compositions including a bacterial collagen-binding polypeptide segment linked to the therapeutic agent to subjects in need of treatment with the therapeutic agent are provided. Methods of treating hyperparathyroidism, and hair loss using compositions comprising a collagen binding polypeptide and a PTH/PTHrP receptor agonist are provided. In addition, methods of reducing hair regrowth by administering a composition including a collagen binding polypeptide and a PTH/PTHrP receptor antagonist are provided.

The Kitasato Institute | Date: 2012-08-31

[Problem] The present invention addresses the problem of providing an anti-trypanosomal drug having a novel skeleton, in order to solve issues that occur with conventional technologies. [Solution] The present invention is based on the discovery of a microbe that produces an anti-trypanosomal drug having a novel skeleton. Specifically, this invention provides: a compound indicated by formula (I) having a trypanosomal inhibitory activity; an analog thereof; a production method therefor; and a

The Kitasato Institute and Nippon Chemiphar Co. | Date: 2013-10-15

The present invention relates to a morphinan derivative represented by the following general formula (I), wherein R

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