2021 Fiscal Year Final Research Report
Mechanisms for anesthetic depth fluctuation during pregnancy and anesthetic considerations for pregnant patients
Project/Area Number |
19K18266
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Research Category |
Grant-in-Aid for Early-Career Scientists
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Allocation Type | Multi-year Fund |
Review Section |
Basic Section 55050:Anesthesiology-related
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Research Institution | University of Toyama |
Principal Investigator |
Honda Yasuko 富山大学, 学術研究部医学系, 助教 (50724572)
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Project Period (FY) |
2019-04-01 – 2022-03-31
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Keywords | 女性ホルモン / 神経ネットワーク / 全身麻酔薬 / 相互相関関係 / ラット |
Outline of Final Research Achievements |
Clinical anesthesiologists know from experience that actions of general anesthetics can be modified in the presence of estrogen/progesterone during perinatal period. The cellular/molecular mechanisms, however, by which female hormones modify general anesthetic actions in the central nervous system remain unknown. In the present study, we studied the effects of general anesthetics on neural networks of rat brain slices in the presence and absence of female hormone. We have determined mechanisms for anesthetic depth fluctuation in the presence of estrogen in vitro.
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Free Research Field |
麻酔科学
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Academic Significance and Societal Importance of the Research Achievements |
当該研究から,(a)全身麻酔薬による意識消失は,中枢における神経ネットワークの断片化が関与する.(b)エストロゲンは,臨床使用濃度(6%)のデスフルランによるネットワーク断片化作用を減弱する.(c)(b)の効果は,15%デスフルランでは認められなかったことから,高濃度デスフルランでは,エストロゲンによる麻酔作用の減弱は認められないと考えられた.したがって女性ホルモン分泌の亢進している若い女性あるいは妊産婦においては,通常使用濃度の全身麻酔薬で麻酔管理した場合,想定外の浅麻酔になる可能性が示唆された.
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