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Negative pressure produced by bacteria: A possible cause of negative middle ear pressure in ears with otitis media
http://hdl.handle.net/10069/37044
http://hdl.handle.net/10069/3704495d0ab0f-a6d3-46a6-b328-a6b494911593
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
ISYO46_Kitaoka.pdf (1.2 MB)
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| Item type | 学位論文 / Thesis or Dissertation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2017-02-06 | |||||
| タイトル | ||||||
| タイトル | Negative pressure produced by bacteria: A possible cause of negative middle ear pressure in ears with otitis media | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Bacteria | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | negative middle ear pressure | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | otitis media | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | oxygen consumption | |||||
| 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 |
北岡, 杏子
× 北岡, 杏子 |
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| 著者別名 | ||||||
| 識別子Scheme | WEKO | |||||
| 識別子 | 115525 | |||||
| 姓名 | Kitaoka, Kyoko | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Conclusions: It is suggested that oxygen consumption by bacteria could be a cause of the negative middle ear pressure in ears with otitis media. Objective: To determine whether oxygen consumption and production of carbon dioxide by bacteria could be a cause of negative pressure in ears with otitis media. Methods: Hermetically-sealed tubes (2ml of volume) containing 1 ml of culture media with Streptococcus pneumoniae leaving 1 ml of airspace were connected to a micro-pressure sensor, and were maintained at 37 degree centigrade in a water bath. Chronological changes of air pressure in the tube were monitored for 15 hours (bacterial group), and were compared with those in the tubes containing culture media only (controls). Also, partial pressures of oxygen and carbon dioxide in the culture media of those bottles were measured. Results: The pressure of the bacterial group were significantly lower than that of controls (bacterial group; -94.6±92mmH2O, control group; 4.6±11.1mmH2O, 2 way-ANOVA, P<0.001). The partial pressures of oxygen were lower (bacterial group; -86.0±22.1mmHg, control group; -34.6±7.93mmHg, 2 way-ANOVA, P<0.0001) and those of carbon dioxide were significantly higher in the bacterial group than in the control group (bacterial group; 11.8±3.8mmHg, control group; -0.23±0.41mmHg, 2 way-ANOVA, P<0.0001). |
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| 内容記述 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 長崎大学学位論文 学位記番号:博(医歯薬)乙第46号 学位授与年月日:平成29年2月1日 | |||||
| 内容記述 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Author: Kyoko Kitaoka, Haruo Takahashi | |||||
| 内容記述 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Citation: Acta Medica Nagasakiensia, 60(4), pp.141-144; 2016 | |||||
| 書誌情報 |
Acta Medica Nagasakiensia 巻 60, 号 4, p. 141-144, 発行日 2017-02-01 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 00016055 | |||||
| 権利 | ||||||
| 権利情報 | (C) 2016 Nagasaki University School of Medicine | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| その他のタイトル | ||||||
| その他のタイトル | 細菌による陰圧形成：中耳炎における中耳陰圧形成の原因の可能性について | |||||
| 出版者 | ||||||
| 出版者 | 長崎大学医学部 | |||||
| 学位名 | ||||||
| 学位名 | 博士(医学) | |||||
| 学位授与機関 | ||||||
| 学位授与機関識別子Scheme | kakenhi | |||||
| 学位授与機関識別子 | 17301 | |||||
| 学位授与機関名 | Nagasaki University (長崎大学) | |||||
| 学位授与年月日 | ||||||
| 学位授与年月日 | 2017-02-01 | |||||
| 学位授与番号 | ||||||
| 学位授与番号 | 乙医歯薬第46号 | |||||
| 学位の種類 | ||||||
| 値 | 論文博士 | |||||
| 引用 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Nagasaki University (長崎大学), 博士(医学) (2017-02-01) | |||||
