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    Article

    Decrease in stomach contents in the Antarctic minke whale (Balaenoptera bonaerensis) in the Southern Ocean

    The Antarctic minke whale (Balaenoptera bonaerensis) is one of the major krill predators in Antarctic waters. A reported decline in energy storage over almost two decades indicates that food availability for the ...

    Kenji Konishi, Takashi Hakamada, Hiroshi Kiwada, Toshihide Kitakado in Polar Biology (2014)

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    Article

    The Co-Delivery of Oxaliplatin Abrogates the Immunogenic Response to PEGylated siRNA-Lipoplex

    In vivo application of siRNA/PEGylated cationic liposome complex (lipoplex) is impeded by two main obstacles: cytokine responses and anti-PEG IgM responses to PEGylated siRNA-lipoplex. Here, we...

    Eman Alaaeldin, Amr S. Abu Lila, Naoto Moriyoshi in Pharmaceutical Research (2013)

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    Protocol

    Anti-PEG IgM Production via a PEGylated Nano-Carrier System for Nucleic Acid Delivery

    For the systemic application of nucleic acids such as plasmid DNA and small interfering RNA, safe and efficient carriers that overcome the poor pharmacokinetic properties of nucleic acids are required. A catio...

    Masako Ichihara, Naoto Moriyoshi in Nanotechnology for Nucleic Acid Delivery (2013)

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    Article

    Habitat and prey selection of common minke, sei, and Bryde’s whales in mesoscale during summer in the subarctic and transition regions of the western North Pacific

    This study represents the first quantitative analysis of the characteristics of the distribution areas and stomach contents of common minke whale Balaenoptera acutorostrata, sei whale B. borealis, and Bryde’s wha...

    Hikaru Watanabe, Makoto Okazaki, Tsutomu Tamura, Kenji Konishi in Fisheries Science (2012)

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    Article

    Improved intratumoral delivery of PEG-coated siRNA-lipoplexes by combination with metronomic S-1 dosing in a murine solid tumor model

    Efficient systemic siRNA delivery to cells in the target tissue is a current critical challenge in the drug delivery field. Several studies have demonstrated that nanoparticles such as polyethylene glycol (PEG...

    Tatsuaki Tagami, Amr S. Abu Lila in Drug Delivery and Translational Research (2012)

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    Article

    Argonaute2 is a potential target for siRNA-based cancer therapy for HT1080 human fibrosarcoma

    Small interfering RNAs (siRNAs) are small RNA molecules that have a potent, sequence-specific gene silencing effect and therefore show promise for therapeutic use as molecular-targeted drugs for the treatment ...

    Tatsuaki Tagami, Takuya Suzuki, Kiyomi Hirose in Drug Delivery and Translational Research (2011)

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    Article

    Targeting Anticancer Drugs to Tumor Vasculature Using Cationic Liposomes

    Liposomal drug delivery systems improve the therapeutic index of chemotherapeutic agents, and the use of cationic liposomes to deliver anticancer drugs to solid tumors has recently been recognized as a promisi...

    Amr S. Abu Lila, Tatsuhiro Ishida, Hiroshi Kiwada in Pharmaceutical Research (2010)

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    Protocol

    Complexation of siRNA and pDNA with Cationic Liposomes: The Important Aspects in Lipoplex Preparation

    In the last two decades, cationic liposomes have been investigated as vehicles for nucleic acids [plasmid DNA (pDNA) and small interfering RNA (siRNA)] delivery in vitro and in vivo. The formation of cationic ...

    José Mario Barichello, Tatsuhiro Ishida, Hiroshi Kiwada in Liposomes (2010)

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    Article

    Accelerated Blood Clearance Phenomenon Upon Repeated Injection of PEG-modified PLA-nanoparticles

    We recently developed prostaglandin E1 (PGE1)-encapsulated nanoparticles, prepared with a poly(lactide) homopolymer (PLA, Mw = 17,500) and monomethoxy poly(ethyleneglycol)-PLA block copolymer (PEG-PLA) (NP-L20). ...

    Tsutomu Ishihara, Miho Takeda, Haruka Sakamoto, Ayumi Kimoto in Pharmaceutical Research (2009)

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    Article

    Effect of Co-administration of Tacrolimus on the Pharmacokinetics of Multiple Subcutaneous Administered Interferon-Alpha in Rats

    Repeated administration of exogenous proteinic compounds triggers the production of specific antibodies. This reaction is limits not only pharmacokinetic studies in animal but also development of human or huma...

    Hiroyuki Yamazaki, Masateru Miyake, Toru Nishibayashi in Pharmaceutical Research (2009)

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    Chapter

    Unexpected Reactions by In Vivo Applications of PEGylated Liposomes

    PEGylated liposome, a liposome coated with polyethylene glycol (PEG), is understood to be biologically inert and, therefore, a suitable vehicle for in vivo applications. The most successful example is the doxo...

    Tatsuhiro Ishida, Hiroshi Kiwada in Safety of Nanoparticles (2009)

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    Article

    Global Gene Expression Profiling in Cultured Cells Is Strongly Influenced by Treatment with siRNA–Cationic Liposome Complexes

    The purpose of this study is to determine if the treatment with siRNA-lipoplexes significantly influences on global gene expression in the treated cells.

    Tatsuaki Tagami, Kiyomi Hirose, Jose Mario Barichello in Pharmaceutical Research (2008)

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    Article

    Possible source of the antarctic bottom water in the Prydz Bay Region

    It has been inferred that the Prydz Bay region is one of the source regions of Antarctic Bottom Water (AABW) based on rather indirect evidence. In order to examine this inference, we investigate the hydrograph...

    Takashi Yabuki, Toshio Suga, Kimio Hanawa, Koji Matsuoka in Journal of Oceanography (2006)

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    Article

    Quantitative Analysis of Correlation Between Number of Nuclear Plasmids and Gene Expression Activity After Transfection with Cationic Liposomes

    Purpose. A quantitative understanding of the intracellular trafficking of plasmids delivered by nonviral vectors is essential for optimizing vector functions to increase their transfection efficiency. In this st...

    Rieko Tachibana, Hideyoshi Harashima, Naoko Ide, Sachiko Ukitsu in Pharmaceutical Research (2002)

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    Article

    Liposome Clearance

    The clearance rate of liposomal drugs from the circulation is determined by the rate and extent of both drug release and uptake of liposomes by cells of the mononuclear phagocyte system (MPS). Intravenously in...

    Tatsuhiro Ishida, Hideyoshi Harashima, Hiroshi Kiwada in Bioscience Reports (2002)

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    Article

    Plasma Factor Triggering Alternative Complement Pathway Activation by Liposomes

    Several plasma components, such as complement (C) components, play a role in the clearance of liposomes from the circulation. The interactions between liposomes and the C system were investigated in this study...

    Kouichi Funato, Chikamasa Yamashita, Junko Kamada in Pharmaceutical Research (1994)

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    Article

    Enhanced Hepatic Uptake of Liposomes Through Complement Activation Depending on the Size of Liposomes

    The objective of this study was to differentiate the roles of opsonins and phagocytic cells in the size-dependent hepatic uptake of liposomes in the submicron region. The extent of opsonization decreased with ...

    Hideyoshi Harashima, Kazuya Sakata, Kouichi Funato in Pharmaceutical Research (1994)

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    Article

    Kinetic analysis of AUC-dependent saturable clearance of liposomes: Mathematical description of AUC dependency

    The objective of this study was to examine the AUCdependency of saturable hepatic clearance (CL h )of liposomes and to postulate a mathematical model to describe the characteris...

    Hideyoshi Harashima, Chizu Yamane in Journal of Pharmacokinetics and Biopharmac… (1993)

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    Article

    Distinction Between the Depletion of Opsonins and the Saturation of Uptake in the Dose-Dependent Hepatic Uptake of Liposomes

    Opsonins play a role in the hepatic uptake of particles such as bacteria, lipid emulsion, and liposomes. The objective of this study was to distinguish between opsonin depletion and uptake saturation in the do...

    Hideyoshi Harashima, Kazuya Sakata, Hiroshi Kiwada in Pharmaceutical Research (1993)