{"_buckets": {"deposit": "28b61b97-8566-4722-af85-2a8df210f03b"}, "_deposit": {"id": "28502", "owners": [], "pid": {"revision_id": 0, "type": "depid", "value": "28502"}, "status": "published"}, "_oai": {"id": "oai:niigata-u.repo.nii.ac.jp:00028502", "sets": ["456", "1612"]}, "item_7_alternative_title_1": {"attribute_name": "その他のタイトル", "attribute_value_mlt": [{"subitem_alternative_title": "マウス卵母細胞の成熟に伴うステロイド代謝の変化"}]}, "item_7_biblio_info_6": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2002-08", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "1", "bibliographicPageEnd": "34", "bibliographicPageStart": "27", "bibliographicVolumeNumber": "55", "bibliographic_titles": [{"bibliographic_title": "新潟大学農学部研究報告"}, {"bibliographic_title": "新潟大学農学部研究報告", "bibliographic_titleLang": "en"}]}]}, "item_7_description_4": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "The activities of hydroxysteroid dehydrogenases (HSDs) were histochemically demonstrated in mouse oocytes in the process of maturation in vivo and in vitro, and the changes in steroid metabolism during meiotic maturation were examined. In mouse oocytes soon after collection, the activities of △5-3β- HSD, 17β-HSD and 20β-HSD were observed in 87 to 97% of those, while the activity of 20α-HSD was not. The percentages of oocytes showing the activities of △5-3β-HSD (using DHA, pregnenolone and 17α- hydroxypregnenolone as the substrates), 17β -HSD (estradiol-17β and testosterone) and 20β -HSD (17α- hydroxyprogesterone and 20β-hydroxyprogesterone) did not change during maturation in vivo and in vitro. The oocytes with the activity of 20α-HSD (20α hydroxyprogesterone) appeared 4 hrs after the hCG injection or after culturing for 4 hrs and the rates of those reached 92 and l00%, respectively, 14 hrs after the hCG injection or after cultunng for 14 hrs. In the oocytes cultured for 8 hrs with olomoucine, an inhibitor of cychn-dependent kmase, nuclei were almost in the germinal vesicle stage, and the activity of 20α-HSD (20α hydroxyprogesterone) was observed in 84% of the treated oocytes. On the other hand, 81% of control oocytes also showed such the HSD activity, showing no difference from the rate of the treated oocytes. From the present findings, it was suggested that the metabolic abilities of progesterone, Viahydroxyprogesterone, 17α,20β dihydroxyprogesterone, 20β -hydroxyprogesterone, estradiol-17/7　and androgen are constantly present in mouse oocytes in the process of maturation in vivo and in vitlo. And it was also suggested that the metabolic ability of 20α-hydroxyprogesterone in mouse oocytes varies with maturation, while the change in the metabolic ability of such steroid is not related to nuclear maturation.", "subitem_description_type": "Abstract"}, {"subitem_description": "体内および体外で成熟過掛こあるマウス卵母細胞について、各種ヒドロキシステロイド脱水索酵素(HSD)の活性を組織化学的に検出し、卵母細胞の成熟に伴うステロイド代謝能の変化を検肘した。採取直後の卵母細胞において、 87ないし97%で△^5-3β-HSD、 17β-HSDおよび20β-HSDの活性が検出されたが、 20α-HSDの活性は検出されなかった。一方、 △^5-3β-HSD(基質としてDHA、 pregnenoloneおよび17α hydroxypregnenoloneを使用)、 17β-HSD (estradiol-17βとtestosterone)および20β-HSD O7α hydroxyprogesteroneと20β-hydroxyprogesterone)の活性を示す卵母細胞の割合は、体内および体外での成熟の経過に伴う変化を示さなかったが、成熟に伴って、20α-HSD (20α-hydroxyprogesterone)の活性を示す卵母細胞は出現し、その割合は高くなった。また、 8時間オロモウシン処置した卵母細胞において、核はほとんどで卵核胞期にあるとともに、 20α-HSD (20α-hydroxyprogesterone)の活性を示すものの割合は84%であり、オロモウシン処置していない対照の卵母細胞の81%と相違なかった。以上の結果から、マウス卵母細胞のprogesterone、 17α-hydroxyprogesterone、 17α,20β-dihydroxyprogesterone、 20β-hydroxyprogesterone、 estradiol-17βおよびandrogenの代謝能は、体内および体外での成熟に関わらず変化しないことが示唆された。また、マウス卵母細胞では、成熟に伴って20α- hydroxyprogesteroneの代謝能は出果して高まるが、この代謝能の変化は、核の成熟とは関係ないことが推察された。", "subitem_description_type": "Abstract"}]}, "item_7_full_name_3": {"attribute_name": "著者別名", "attribute_value_mlt": [{"nameIdentifiers": [{"nameIdentifier": "163955", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "新村, 末雄"}]}, {"nameIdentifiers": [{"nameIdentifier": "163956", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "川上, 心也"}]}]}, "item_7_publisher_7": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "新潟大学農学部"}]}, "item_7_select_19": {"attribute_name": "著者版フラグ", "attribute_value_mlt": [{"subitem_select_item": "publisher"}]}, "item_7_source_id_11": {"attribute_name": "書誌レコードID", "attribute_value_mlt": [{"subitem_source_identifier": "AN00183393", "subitem_source_identifier_type": "NCID"}]}, "item_7_source_id_9": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "03858634", "subitem_source_identifier_type": "ISSN"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Niimura, Sueo"}], "nameIdentifiers": [{"nameIdentifier": "163953", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Kawakami, Shin-ya"}], "nameIdentifiers": [{"nameIdentifier": "163954", "nameIdentifierScheme": "WEKO"}]}]}, "item_files": {"attribute_name": "ファイル情報", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_date", "date": [{"dateType": "Available", "dateValue": "2019-08-20"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "55_1_27-34.pdf", "filesize": [{"value": "578.4 kB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_free", "mimetype": "application/pdf", "size": 578400.0, "url": {"label": "55_1_27-34.pdf", "url": "https://niigata-u.repo.nii.ac.jp/record/28502/files/55_1_27-34.pdf"}, "version_id": "76701510-d4f4-4f59-8223-1ed5148a95e4"}]}, "item_keyword": {"attribute_name": "キーワード", "attribute_value_mlt": [{"subitem_subject": "mouse oocyte", "subitem_subject_scheme": "Other"}, {"subitem_subject": "meiotic maturation", "subitem_subject_scheme": "Other"}, {"subitem_subject": "hydroxysteroid dehydrogenase", "subitem_subject_scheme": "Other"}, {"subitem_subject": "steroid metabolism", "subitem_subject_scheme": "Other"}, {"subitem_subject": "histochemistry", "subitem_subject_scheme": "Other"}, {"subitem_subject": "マウス卵母細胞", "subitem_subject_scheme": "Other"}, {"subitem_subject": "成熟分裂", "subitem_subject_scheme": "Other"}, {"subitem_subject": "ヒドロキシステロイド脱水素酵素", "subitem_subject_scheme": "Other"}, {"subitem_subject": "ステロイド代謝", "subitem_subject_scheme": "Other"}, {"subitem_subject": "組織化学", "subitem_subject_scheme": "Other"}]}, "item_language": {"attribute_name": "言語", "attribute_value_mlt": [{"subitem_language": "eng"}]}, "item_resource_type": {"attribute_name": "資源タイプ", "attribute_value_mlt": [{"resourcetype": "departmental bulletin paper", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_title": "Changes of Steroid Metabolism in Mouse Oocytes during Meiotic Maturation", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Changes of Steroid Metabolism in Mouse Oocytes during Meiotic Maturation"}, {"subitem_title": "Changes of Steroid Metabolism in Mouse Oocytes during Meiotic Maturation", "subitem_title_language": "en"}]}, "item_type_id": "7", "owner": "1", "path": ["456", "1612"], "permalink_uri": "http://hdl.handle.net/10191/25111", "pubdate": {"attribute_name": "公開日", "attribute_value": "2014-02-12"}, "publish_date": "2014-02-12", "publish_status": "0", "recid": "28502", "relation": {}, "relation_version_is_last": true, "title": ["Changes of Steroid Metabolism in Mouse Oocytes during Meiotic Maturation"], "weko_shared_id": null}