{"created":"2023-07-27T06:54:57.967590+00:00","id":50567,"links":{},"metadata":{"_buckets":{"deposit":"f88a176d-ed73-47c5-acd3-fa8fe3e3c5ba"},"_deposit":{"created_by":18,"id":"50567","owners":[18],"pid":{"revision_id":0,"type":"depid","value":"50567"},"status":"published"},"_oai":{"id":"oai:kanazawa-u.repo.nii.ac.jp:00050567","sets":["2812:2813:2830"]},"author_link":["91488","20737"],"item_9_biblio_info_8":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2015-04-18","bibliographicIssueDateType":"Issued"},"bibliographicPageStart":"2p.","bibliographicVolumeNumber":"2001-2003","bibliographic_titles":[{"bibliographic_title":"平成15(2003)年度 科学研究費補助金 基盤研究(C) 研究成果報告書"},{"bibliographic_title":"2003 Fiscal Year Final Research Report Summary","bibliographic_titleLang":"en"}]}]},"item_9_creator_33":{"attribute_name":"著者別表示","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{}],"nameIdentifiers":[{},{},{}]}]},"item_9_description_21":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"片側性パーキンソンモデルラットを一側の線条体に6-OHDAを注入して作成し、迷走神経下神経節移植の効果について検討した。迷走神経下神経節移植は神経毒を注入してから2週後に行い、ドーパミンD_1、D_2レセプター及びドーパミントランスポータをそれぞれ[^3H]SCH23390、[^3H]YM-09151-2、[^3H]GBR12935を用いたインビトロオートラジオグラフィ法にて評価した。非特異的結合は[+]-ブタクラモールあるいは大量のGBR12935を用いて測定し、6-OHDA注入側と対側線条体の放射能比を指標とした。その結果、パーキンソンモデルラットにてドーパミントランスポータの著明な減少を認めた。移植ラットにてドーパミントランスポータとD_1レセプターは変化を認めなかったのに対し、D_2レセプターの有意な上昇を認めた。これらの結果より、迷走神経下神経節移植はドーパミントランスポータの改善には効果がないのに対し、6-OHDA注入側線条体のD_2レセプターのアップレギュレーションを誘導することが示された。\n痴呆疾患の分子イメージング剤としてシナプス小胞膜アセチルコリントランスポーターに注目し、ラット脳を用いた薬物阻害実験にて3種のヨードベサミコール類似物質の光学異性体((-)oIV,(-)mIV,(-)vesamicol,(+)oIV,(+)raIV,(+)vesamicol)についてベサミコールトランスポーターとシグマ(α1,α2)レセプターの結合の程度を比較した。その結果,(-)[^<125>I]-oIVは以前に報告した(-)-mIVよりもベサミコールトランスポーターに選択的に結合するのみならず、シグマレセプターとの結合が弱いため、PETあるいはSPECTによるアセチルコリントランスポーターのイメージング剤として有望であることが示された。さらに,このイメージング剤の改良とともに,他のアセチルコリン神経系の分子イメージング薬剤の合成について検討中である。","subitem_description_type":"Abstract"},{"subitem_description":"Parkinsonian rats were stereotaxically infused 6-OHDA into the unilateral mesostriatal dopamine pathway and measured apomorphine-induced rotational behavior. Controls were infused saline instead of neurotoxin. Animals were divided into transplantation(TP) and sham-operated(S) groups. Ipsilateral vagal nodosal ganglion was surgically removed horn die neck and stereotaxically transplanted as nerve fragments into the ipsilateral striatum 2 weeks after nerotoxin infusion Sequential brain sections underwent autoradiography of dopaminergic system 2 weeks after operation. Densities of dopamine D1,D2 receptors and dopamine transporter(DAT) were assessed by in-vitro autoradiography using[^3H]SCH23390,[^3H]YM-09151-2 and[^3H]GBR12935. Significant DAT decrease in striatum was shown in the model animals compared with controls(P<0.0001). D_2 receptor in the ipsilateral striatum increased significantly in transplanted animals compared with sham-operated animals(S/R-,0.97±0.08;TP/R-,1.08±0.08;p=0.039 and S/R+,1.06±0.06;TP/R+,1.19±0.16;p=0.023), whereas DAT and D_1 receptor showed no significant changes. Our results suggest that vagal autotransplantation induces upregulation of D_2 receptor in the ipsilateral striatum. Autotransplantation showed no significant effect on DAT, although DAT imaging is a sensitive test for dopaminergic damage. We need hurther study on dopaminergic system imaging after neural transplantation.\nWe evaluated the potencies of radioiodimted(-)-o-iodovesamicol [(-)-oIV] as a selective vesicular acetylcholine tmnsporter(VAChT) mapping agen. (-)-[^<125>1] oIV exhibited significant accumulationin rat brain. The regional brain distribution of radioactivity was similar for both (-)-[^<125>1] oIV and [^3H]vesamicol. The accumulation of (-)-[^<125>1] oIV in the brain was significant reduced by post-administration of unlabeled vesamicol(0.5μmol/kg^<-1>) and(-)-[^<125>1] oIV μmol/kg-1] in the other hand, the post-administration of sigma ligands hardy affected the accumulation of (-)-[^<125>1] oIV in die brain. These studies showed that (-)-[^<125>1] oIV, as well as [^3H]vesamicol, bound to VAChT with high affinity in die rat brain. Funhemore, (-)-[^<125>1] oIV binding in the ipsilateral cortex to the lesion was significantly reduced by 17.0%, compared with that in the contralateral cortex in a unilateral NBM-lesioned rat. These results suggested that radioiodimted(-)-[^<125>1] oIV may potentially be useful for the diagnosis of cholinergic neurodegenerative disorders.","subitem_description_type":"Abstract"}]},"item_9_description_22":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"研究課題/領域番号:13670925, 研究期間(年度):2001-2003","subitem_description_type":"Other"},{"subitem_description":"出典：研究課題「分子イメージングによる痴呆疾患の客観的診断・治療効果判定に関する基礎的研究」課題番号13670925\n（KAKEN：科学研究費助成事業データベース（国立情報学研究所）） \n（https://kaken.nii.ac.jp/report/KAKENHI-PROJECT-13670925/136709252003kenkyu_seika_hokoku_gaiyo/）を加工して作成","subitem_description_type":"Other"}]},"item_9_description_5":{"attribute_name":"提供者所属","attribute_value_mlt":[{"subitem_description":"金沢大学学際科学実験センター","subitem_description_type":"Other"}]},"item_9_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.24517/00056876","subitem_identifier_reg_type":"JaLC"}]},"item_9_relation_28":{"attribute_name":"関連URI","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"https://kaken.nii.ac.jp/search/?qm=90019604"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://kaken.nii.ac.jp/search/?qm=90019604","subitem_relation_type_select":"URI"}},{"subitem_relation_name":[{"subitem_relation_name_text":"https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13670925/"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13670925/","subitem_relation_type_select":"URI"}},{"subitem_relation_name":[{"subitem_relation_name_text":"https://kaken.nii.ac.jp/report/KAKENHI-PROJECT-13670925/136709252003kenkyu_seika_hokoku_gaiyo/"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://kaken.nii.ac.jp/report/KAKENHI-PROJECT-13670925/136709252003kenkyu_seika_hokoku_gaiyo/","subitem_relation_type_select":"URI"}}]},"item_9_version_type_25":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_ab4af688f83e57aa","subitem_version_type":"AM"}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2022-04-11"}],"displaytype":"detail","filename":"AD-PR-MORI-H-kaken 2015-2p.pdf","filesize":[{"value":"91.6 kB"}],"format":"application/pdf","licensetype":"license_11","mimetype":"application/pdf","url":{"label":"AD-PR-MORI-H-kaken 2015-2p.pdf","url":"https://kanazawa-u.repo.nii.ac.jp/record/50567/files/AD-PR-MORI-H-kaken 2015-2p.pdf"},"version_id":"74218dbc-d3a8-4945-a7dd-312f94d97332"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"research report","resourceuri":"http://purl.org/coar/resource_type/c_18ws"}]},"item_title":"分子イメージングによる痴呆疾患の客観的診断・治療効果判定に関する基礎的研究","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"分子イメージングによる痴呆疾患の客観的診断・治療効果判定に関する基礎的研究"},{"subitem_title":"Fundamental Study on objective diagnosis and therapy effect decision of the dementia by the molecular imaging","subitem_title_language":"en"}]},"item_type_id":"9","owner":"18","path":["2830"],"pubdate":{"attribute_name":"公開日","attribute_value":"2022-04-11"},"publish_date":"2022-04-11","publish_status":"0","recid":"50567","relation_version_is_last":true,"title":["分子イメージングによる痴呆疾患の客観的診断・治療効果判定に関する基礎的研究"],"weko_creator_id":"18","weko_shared_id":-1},"updated":"2023-07-27T13:19:06.904642+00:00"}