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Yasushi Hamaya

As seen in: AIChE Journal, PLOS ONE
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Articles

A comparison of two types of contrast media used in endoscopic retrograde cholangiopancreatography: A retrospective study

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By Yasushi Hamaya, Satoshi Tamura, Tomoharu Matsuura, Shunya Onoue
| PLOS ONE
Loading metrics Open Access Peer-reviewed Research Article Abstract Background Post-endoscopic retrograde cholangiopancreatography (ERCP) pancreatitis (PEP) is one of the most serious complications of ERCP. Various procedures can reduce the incidence of PEP, such as wire-guided cannulation, prophylactic pancreatic stent placement, and pretreatment anal insertion of NSAIDs. Recently, iso-osmolar contrast media (IOCM) have been used for ERCP in several hospitals to reduce the risk of PEP in Japan.
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M2 polarization of murine peritoneal macrophages induces regulatory cytokine production and suppresses T-cell proliferation

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By Shinji Oishi, Ryosuke Takano, Satoshi Tamura, Shinya Tani, Moriya Iwaizumi, Yasushi Hamaya, Kosuke Takagaki, Toshi Nagata, Shintaro Seto, Toshinobu Horii, Satoshi Osawa, Takahisa Furuta, Hiroaki Miyajima, Ken Sugimoto
| AIChE Journal Verified
Bone marrow-derived macrophages are divided into two phenotypically and functionally distinct subsets, M1 and M2 macrophages. Recently, it was shown that adoptive transfer of M2-polarized peritoneal macrophages reduced the severity of experimental colitis in mice. However, it is still unclear whether peritoneal macrophages possess the same ability to be polarized to cells with functionally different phenotypes and cytokine production patterns as bone marrow-derived macrophages.
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