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Quantitative effects of bilirubin structural photoisomers on the measurement of direct bilirubin via the vanadate oxidation method
https://kagawa-u.repo.nii.ac.jp/records/2000007
https://kagawa-u.repo.nii.ac.jp/records/2000007ef505868-71f0-4fb4-9c75-0b0ce887f058
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本文 (338 KB)
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内容の要旨 (93 KB)
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審査の結果の要旨 (83 KB)
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| Item type | 学位論文 / Thesis or Dissertation(1) | |||||||||||||
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| 公開日 | 2023-07-11 | |||||||||||||
| タイトル | ||||||||||||||
| タイトル | Quantitative effects of bilirubin structural photoisomers on the measurement of direct bilirubin via the vanadate oxidation method | |||||||||||||
| 言語 | en | |||||||||||||
| 言語 | ||||||||||||||
| 言語 | eng | |||||||||||||
| 資源タイプ | ||||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_db06 | |||||||||||||
| 資源タイプ | doctoral thesis | |||||||||||||
| アクセス権 | ||||||||||||||
| アクセス権 | open access | |||||||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||||||
| 著者 |
有岡, 誠
× 有岡, 誠
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| 抄録 | ||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||
| 内容記述 | Background: Exposing blood serum samples to ambient white light-emitting diode (WLED) light may accelerate bilirubin photoisomer production. We previously demonstrated the quantitative effect of bilirubin configurational isomers (BCI) on direct bilirubin (DB) value using the vanadate oxidation method. However, the effects of bilirubin structural photoisomers (BSI) remain unclear. | |||||||||||||
| 言語 | en | |||||||||||||
| 抄録 | ||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||
| 内容記述 | Methods: In Study 1, the relationship between WLED irradiation time and BSI production was examined. Serum samples from five neonates were irradiated with WLED light for 0, 10, 30, 60 and 180 min. Bilirubin isomer concentration and BSI production rates were calculated. In Study 2, we performed quantitative investigation of BSI effect on DB values: Differences in DB, BCI and BSI values before and after irradiation were calculated as ⊿DB, ⊿BCI and ⊿BSI, respectively. Assuming the coefficient of BCI affecting DB values was 'a', relational expression was ⊿DB = a*⊿BSI + 0.19*⊿BCI. Serum samples from 15 neonates were irradiated with green LED light for 10 and 30 s. The respective bilirubin isomer levels were measured, and the coefficient was derived. | |||||||||||||
| 言語 | en | |||||||||||||
| 抄録 | ||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||
| 内容記述 | Results: In Study 1, the median BSI production rate was 0.022 mg/dL per min in specimens with an unconjugated bilirubin concentration of 10.88 mg/dL. In Study 2, assuming that ⊿DB-0.19*⊿BCI was Y and ⊿BSI was X, the relational expression was Y = 0.34X-0.03 (R2 = 0.87; p < .01) and a = 0.34. | |||||||||||||
| 言語 | en | |||||||||||||
| 抄録 | ||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||
| 内容記述 | Conclusions: Under ambient WLED light, serum sample generated 1.3 mg/dL BSIs in 1 h. Approximately 34% (0.44 mg/dL) of BSI concentrations was measured as DB when using the vanadate oxidation method according to the above equation. | |||||||||||||
| 言語 | en | |||||||||||||
| 学位名 | ||||||||||||||
| 言語 | ja | |||||||||||||
| 学位名 | 博士（医学） | |||||||||||||
| 学位授与機関 | ||||||||||||||
| 識別子Scheme | kakenhi | |||||||||||||
| 識別子 | 16201 | |||||||||||||
| 言語 | ja | |||||||||||||
| 機関名 | 香川大学 | |||||||||||||
| 言語 | en | |||||||||||||
| 機関名 | Kagawa University | |||||||||||||
| 学位授与年月日 | ||||||||||||||
| 学位授与年月日 | 2023-06-26 | |||||||||||||
| 学位授与番号 | ||||||||||||||
| 学位授与番号 | 甲第837号 | |||||||||||||
| PubMed番号 | ||||||||||||||
| 識別子タイプ | PMID | |||||||||||||
| 関連識別子 | 36772822 | |||||||||||||
| 関連サイト | ||||||||||||||
| 関連タイプ | isVersionOf | |||||||||||||
| 識別子タイプ | DOI | |||||||||||||
| 関連識別子 | https://doi.org/10.1177/00045632231154748 | |||||||||||||
| 助成情報 | ||||||||||||||
| 識別子タイプ | Crossref Funder | |||||||||||||
| 助成機関識別子 | https://doi.org/10.13039/501100001691 | |||||||||||||
| 助成機関名 | 日本学術振興会 | |||||||||||||
| 言語 | ja | |||||||||||||
| 助成機関名 | Japan Society for the Promotion of Science | |||||||||||||
| 言語 | en | |||||||||||||
| 研究課題番号URI | https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-19K08349/ | |||||||||||||
| 研究課題番号 | 19K08349 | |||||||||||||
| 研究課題名 | 新生児における脳循環、酸素代謝状態に基づく輸血基準作成の為の基礎的検討 | |||||||||||||
| 言語 | ja | |||||||||||||
| 助成情報 | ||||||||||||||
| 識別子タイプ | Crossref Funder | |||||||||||||
| 助成機関識別子 | https://doi.org/10.13039/501100003478 | |||||||||||||
| 助成機関名 | 厚生労働省 | |||||||||||||
| 言語 | ja | |||||||||||||
| 助成機関名 | Ministry of Health, Labour and Welfare | |||||||||||||
| 言語 | en | |||||||||||||
| 研究課題番号 | 21FC1001 | |||||||||||||
| 研究課題名 | 早産児ビリルビン脳症の診療指針の改訂および包括的診療体制の確立 | |||||||||||||
| 言語 | ja | |||||||||||||
| 著者版フラグ | ||||||||||||||
| 出版タイプ | P | |||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_fa2ee174bc00049f | |||||||||||||
| キーワード | ||||||||||||||
| 言語 | en | |||||||||||||
| 主題Scheme | Other | |||||||||||||
| 主題 | Bilirubin | |||||||||||||
| キーワード | ||||||||||||||
| 言語 | en | |||||||||||||
| 主題Scheme | Other | |||||||||||||
| 主題 | direct bilirubin | |||||||||||||
| キーワード | ||||||||||||||
| 言語 | en | |||||||||||||
| 主題Scheme | Other | |||||||||||||
| 主題 | photoisomer | |||||||||||||
