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  1. Article: Biomechanical Effect of Distal Tibial Oblique Osteotomy: A Preliminary Finite-Element Analysis.

    Sakai, Tatsuya / Fujii, Masanori / Kitamura, Kenji / Tanaka, Hirofumi / Mawatari, Masaaki

    Cureus

    2024  Volume 16, Issue 2, Page(s) e53803

    Abstract: Background: The biomechanical effect of distal tibial oblique osteotomy (DTOO) on osteoarthritic ankles has not been investigated. Using finite element (FE) models, we aimed to elucidate the effect of DTOO on the ankle contact pressure (CP) distribution. ...

    Abstract Background: The biomechanical effect of distal tibial oblique osteotomy (DTOO) on osteoarthritic ankles has not been investigated. Using finite element (FE) models, we aimed to elucidate the effect of DTOO on the ankle contact pressure (CP) distribution.
    Methods: This study included two patients with ankle osteoarthritis who underwent DTOO and one asymptomatic control. Patient-specific FE models were reconstructed by matching standing radiographs with supine computed tomography scans. The joint contact area (CA) and maximum CP on the articular surface of the talus were calculated before and after DTOO and compared with those of the control.
    Results: In the control, the CA was 584 mm
    Conclusions: This study suggests DTOO improves the biomechanics of the ankle, but not sufficiently compared to the control. This analytical approach may enhance understanding of ankle pathophysiology and assist in the design of the ideal corrective osteotomy.
    Language English
    Publishing date 2024-02-07
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2747273-5
    ISSN 2168-8184
    ISSN 2168-8184
    DOI 10.7759/cureus.53803
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Book: Genetic manipulation of the kidney

    Kitamura, Masanori

    6 tables

    (Experimental nephrology ; 5,2)

    1997  

    Author's details guest ed. Masanori Kitamura
    Series title Experimental nephrology ; 5,2
    Collection
    Keywords Gene Transfer ; Kidney / metabolism ; Genetic Vectors ; Nierenkrankheit ; Gentherapie ; Niere ; Gentransfer
    Subject Genübertragung ; Transfer ; Nephros ; Ren ; Somatische Gentherapie ; Nephropathie ; Nierenerkrankung ; Nierenerkrankungen ; Niere ; Renopathie
    Language English
    Size S. 105 - 173 : Ill., graph. Darst.
    Publisher Karger
    Publishing place Basel u.a.
    Publishing country Switzerland
    Document type Book
    HBZ-ID HT007501437
    ISBN 3-8055-6480-5 ; 978-3-8055-6480-9
    Database Catalogue ZB MED Medicine, Health

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    In stock of ZB MED Cologne/Königswinter

    Shelf markLoan statusLocation
    Zs A 3588 -5- not available for loan Zeitschriften-Lesesaal

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  3. Article ; Online: Inverted Pyloric Gland Adenoma of the Duodenum.

    Ueda, Tomoya / Kato, Minoru / Kitamura, Masanori / Aizawa, Shigeyuki / Uedo, Noriya / Takeuchi, Yoji

    The American journal of gastroenterology

    2023  

    Language English
    Publishing date 2023-12-20
    Publishing country United States
    Document type Journal Article
    ZDB-ID 390122-1
    ISSN 1572-0241 ; 0002-9270
    ISSN (online) 1572-0241
    ISSN 0002-9270
    DOI 10.14309/ajg.0000000000002603
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Lipoxin A

    Futokoro, Risa / Hijioka, Masanori / Arata, Moe / Kitamura, Yoshihisa

    Brain sciences

    2022  Volume 12, Issue 2

    Abstract: Intracerebral hemorrhage (ICH) is caused by the rupture of blood vessels in the brain. The excessive activation of glial cells and the infiltration of numerous inflammatory cells are observed during bleeding. Thrombin is a key molecule that triggers ... ...

    Abstract Intracerebral hemorrhage (ICH) is caused by the rupture of blood vessels in the brain. The excessive activation of glial cells and the infiltration of numerous inflammatory cells are observed during bleeding. Thrombin is a key molecule that triggers neuroinflammation in the ICH brain. In this study, we focused on lipoxin A
    Language English
    Publishing date 2022-01-26
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2651993-8
    ISSN 2076-3425
    ISSN 2076-3425
    DOI 10.3390/brainsci12020162
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Mobile vegetations on a poorly endothelialized atrial septal defect closure device.

    Kitamura, Hideki / Yamamoto, Masanori / Kagase, Ai

    JTCVS techniques

    2021  Volume 7, Page(s) 240–241

    Language English
    Publishing date 2021-01-13
    Publishing country United States
    Document type Case Reports
    ISSN 2666-2507
    ISSN (online) 2666-2507
    DOI 10.1016/j.xjtc.2021.01.010
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: A multicolor suite for deciphering population coding of calcium and cAMP in vivo.

    Yokoyama, Tatsushi / Manita, Satoshi / Uwamori, Hiroyuki / Tajiri, Mio / Imayoshi, Itaru / Yagishita, Sho / Murayama, Masanori / Kitamura, Kazuo / Sakamoto, Masayuki

    Nature methods

    2024  

    Abstract: cAMP is a universal second messenger regulated by various upstream pathways including ... ...

    Abstract cAMP is a universal second messenger regulated by various upstream pathways including Ca
    Language English
    Publishing date 2024-03-21
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2169522-2
    ISSN 1548-7105 ; 1548-7091
    ISSN (online) 1548-7105
    ISSN 1548-7091
    DOI 10.1038/s41592-024-02222-9
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  7. Article ; Online: CD34-Positive Spindle Cell Tumor With

    Iwamura, Ryuji / Nawata, Aya / Akaike, Ryota / Kitamura, Takuro / Hisaoka, Masanori

    International journal of surgical pathology

    2023  Volume 32, Issue 2, Page(s) 408–413

    Abstract: Sinonasal glomangiopericytoma is an uncommon mesenchymal tumor with a perivascular myoid phenotype, which is categorized as a borderline/low-grade malignant soft tissue tumor by the current World Health Organization Classification of Head and Neck tumors. ...

    Abstract Sinonasal glomangiopericytoma is an uncommon mesenchymal tumor with a perivascular myoid phenotype, which is categorized as a borderline/low-grade malignant soft tissue tumor by the current World Health Organization Classification of Head and Neck tumors. Here, we present the case of a 53-year-old woman with an unusual spindle cell morphology of sinonasal glomangiopericytoma arising in the nasal cavity, mimicking solitary fibrous tumor. Microscopically, the tumor showed a cellular proliferation of spindle cells in fascicles including a focal long sweeping arrangement or whorls, or with a storiform growth pattern, associated with hemangiopericytoma-like gaping blood vessels embedded in a fibrous stroma. This arrangement of the spindle cells faintly indicated a solitary fibrous tumor rather than sinonasal glomangiopericytoma. Immunohistochemically, the tumor was positively reactive to not only beta-catenin (in the nuclei) but also CD34, although signal transducers and activators of transcription 6 was negative. Mutational analysis using Sanger sequencing detected a CTNNB1 mutation. We finally diagnosed the tumor as a sinonasal glomangiopericytoma, showing an unusual spindle cell variant. Such unusual spindle cell morphology with CD34-immunoreactivity potentially leads to an incorrect diagnosis of solitary fibrous tumor because such prominent fascicles including long sweeping structures, reminiscent of desmoid-type fibromatosis, have scarcely been described in the literature. Hence, careful morphological scrutiny using appropriate diagnostic adjuncts is necessary for correct diagnosis.
    MeSH term(s) Female ; Humans ; Middle Aged ; Soft Tissue Neoplasms ; Paranasal Sinus Neoplasms/diagnosis ; Paranasal Sinus Neoplasms/genetics ; Cell Nucleus ; Solitary Fibrous Tumors/diagnosis ; Solitary Fibrous Tumors/genetics ; Antigens, CD34 ; Mutation ; beta Catenin/genetics
    Chemical Substances Antigens, CD34 ; CTNNB1 protein, human ; beta Catenin
    Language English
    Publishing date 2023-06-08
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 1336393-1
    ISSN 1940-2465 ; 1066-8969
    ISSN (online) 1940-2465
    ISSN 1066-8969
    DOI 10.1177/10668969231177889
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    Zs.A 4500: Show issues Location:
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  8. Article: Nucleophilic substitution reactions of unbranched alkyl amines using triazine reagents

    Kitamura, Masanori / Kitaoka, Yuki / Fujita, Hikaru / Kunishima, Munetaka

    Tetrahedron letters. 2022 Mar. 16, v. 93

    2022  

    Abstract: Since amines are present in many organic, biological, and drug molecules, a strategy of synthesizing desired compounds by nucleophilic substitution reactions of these amines is very attractive. By using triazine reagents, we have found that nucleophilic ... ...

    Abstract Since amines are present in many organic, biological, and drug molecules, a strategy of synthesizing desired compounds by nucleophilic substitution reactions of these amines is very attractive. By using triazine reagents, we have found that nucleophilic substitution reactions of unbranched alkyl amines via morpholine derivatives are feasible. This method can be performed under milder reaction conditions than those in previously reported methods.
    Keywords Lewis bases ; drugs ; morpholine ; triazines
    Language English
    Dates of publication 2022-0316
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 204287-3
    ISSN 1873-3581 ; 0040-4039
    ISSN (online) 1873-3581
    ISSN 0040-4039
    DOI 10.1016/j.tetlet.2022.153692
    Database NAL-Catalogue (AGRICOLA)

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    Zs.A 2837: Show issues Location:
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  9. Article ; Online: Synthesis and characterization of tetraphenylammonium salts.

    Fujita, Hikaru / Sasamoto, Ozora / Kobayashi, Shiori / Kitamura, Masanori / Kunishima, Munetaka

    Nature communications

    2022  Volume 13, Issue 1, Page(s) 2537

    Abstract: The phenyl (Ph) group is a representative substituent in the field of organic chemistry as benzene (the parent molecule) is of fundamental importance. Simple Ph-substituted compounds of common chemical elements are well known. However, extensive ... ...

    Abstract The phenyl (Ph) group is a representative substituent in the field of organic chemistry as benzene (the parent molecule) is of fundamental importance. Simple Ph-substituted compounds of common chemical elements are well known. However, extensive structural characterization of tetraphenylammonium (Ph
    Language English
    Publishing date 2022-05-09
    Publishing country England
    Document type Journal Article
    ZDB-ID 2553671-0
    ISSN 2041-1723 ; 2041-1723
    ISSN (online) 2041-1723
    ISSN 2041-1723
    DOI 10.1038/s41467-022-30282-y
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  10. Article ; Online: Synthesis and characterization of tetraphenylammonium salts

    Hikaru Fujita / Ozora Sasamoto / Shiori Kobayashi / Masanori Kitamura / Munetaka Kunishima

    Nature Communications, Vol 13, Iss 1, Pp 1-

    2022  Volume 7

    Abstract: Tetraphenylammonium (Ph4N+) salts remain synthetically inaccessible despite their simple chemical structure. Here, the authors have synthesized Ph4N+ salts and provided characterization including a single-crystal X-ray structure. ...

    Abstract Tetraphenylammonium (Ph4N+) salts remain synthetically inaccessible despite their simple chemical structure. Here, the authors have synthesized Ph4N+ salts and provided characterization including a single-crystal X-ray structure.
    Keywords Science ; Q
    Language English
    Publishing date 2022-05-01T00:00:00Z
    Publisher Nature Portfolio
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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