小児頭蓋咽頭腫における概日リズム
Dana Kamara1,2, Stephanie J Crowley3, Valerie McLaughlin Crabtree1
1Department of Psychology, St. Jude Children's Research Hospital, Memphis, TN, United States.
まとめ
小児頭蓋咽頭腫患者では概日リズムが乱れており、約半数で暗所視線メロトニンオンセット(DLMO)の推定値が得られていません。この乱れは疾患の重症度やその他の睡眠問題と相関しており、位相前進の可能性が示唆されています。
科学分野:
- 神経科学
- 内分泌学
- 睡眠医学
背景:
- 視床下部-下垂体軸付近の腫瘍である頭蓋咽頭腫は、子供や青年によく見られます。
- 生存率は高いものの、睡眠障害を含む重大な罹患率が一般的です。
- 概日リズムの脆弱性が疑われていますが、概日健康は十分に研究されていません。
研究 の 目的:
- 小児頭蓋咽頭腫患者における概日リズムの特徴を探求すること。
- 概日タイミングと疾患の重症度または他の睡眠変数との関連を調査すること。
主な方法:
- 単一施設での前向き研究。
- 53人の患者(7〜20歳)が唾液メロトニンサンプルを提供し、暗所視線メロトニンオンセット(DLMO)を推定しました。
- 睡眠データは、アクチグラフィ、ポリソムノグラフィ、および多重睡眠潜時テスト(MSLT)によって収集されました。
主要な成果:
- 患者のほぼ半数で有効なDLMO推定値が得られず、しばしば早期に欠落していました。;欠落したDLMOは、疾患の重症度(視床下部関与、尿崩症)と関連していました。;有効なDLMO推定値では、タイミングはBMIおよびMSLT平均睡眠潜時と相関していました。
結論:
- 小児頭蓋咽頭腫患者の一部では、概日位相前進を示す可能性があります。
- 概日リズムの乱れは、予後不良因子およびその他の睡眠/健康要因と相関しています。
- 概日リズムの関連を明確にするためには、早期サンプリングによるさらなる研究が必要です。
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