ダウン症候群の成人の障害性睡眠時無呼吸症候群:体構成,代謝プロファイル,認知状態
Lígia Fidelis Ivanovic1, Cristiana Castanho de Almeida Rocca2, Rosa Hasan2
1Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brazil.
Clinics (Sao Paulo, Brazil)
|February 14, 2026
まとめ
阻害性睡眠時無呼吸症候群 (OSA) はダウン症候群 (DS) の成人の63%に影響し,代謝問題と記憶力の低下と相関しています. これは,この集団におけるOSAスクリーニングの必要性を強調しています.
科学分野:
- 医学研究 医学研究
- 遺伝学 遺伝学とは
- スリープ・メディシン (睡眠医学)
背景:
- ダウン症候群 (DS) は,知的障害の主な原因であり,しばしば医学的状態が伴います.
- 阻害性睡眠時無呼吸症 (OSA) は,DSの個人に非常に多く見られ,一般人口の割合を超えています.
- DSの成人におけるOSAの臨床的影響,特に心血管,代謝,神経認知のリスクは十分に研究されていない.
研究 の 目的:
- DSの成人のOSAの罹患率と特徴を決定する.
- このコホートにおけるOSAと身体構成,代謝状態,機能能力,認知能力の関連性を調査する.
主な方法:
- DS (≥18歳) の34人の成人を対象とした横断的な研究.
- 評価には,アンソポメトリー,ポリソムノグラフィ (PSG),神経心理学的テスト,生化学的マーカー,機能的スケールが含まれていました.
- 臨床的,人体測定的,機能的,および認知的変数に関するOSAとOSAのない被験者間の比較が行われました.
主要な成果:
- OSAは,DS参加者の63%で診断されました (アプネア・ヒポネア指数 ≥5イベント/h).
- OSAは,男性性,頸部周長増加,腹部脂肪,シストリック血圧上昇,グルコース代謝の変化,低HDLコレステロールと関連していました.
- OSAを患っている人は,口頭記憶のタスクのパフォーマンスを低下させています.
結論:
- ダウン症候群の成人は,阻害性睡眠無呼吸症候群の発生率が高い.
- この集団におけるOSAは有害な代謝プロファイルと記憶機能の低下と関連しています.
- 研究結果は,通常のOSAスクリーニングと管理がDSの成人のために不可欠であることを示唆しています.
関連する概念動画
01:21Sleep Apnea
599
Sleep apnea is a condition where breathing stops intermittently during sleep, often leading to significant health issues. Each episode can last from 10 to 20 seconds or more and is frequently accompanied by a brief arousal from sleep. This disturbance, largely unnoticed by the individual, can lead to severe daytime fatigue. Commonly, individuals seek help after being informed by their partners about loud snoring and noticeable breathing pauses during sleep.
The condition is more prevalent among...
The condition is more prevalent among...
599
00:55Composite Bodies
1.4K
A composite body is a body made up of multiple parts, connected to form a larger, unified object. Each part has its own weight and center of gravity, which must be considered to determine the center of gravity of the composite body. In cases where the density or specific weight is constant, the center of gravity coincides with the centroid.
Composite bodies have widespread applications in mechanical engineering, from automobiles to aircraft to rockets. For example, an automobile wheel comprises...
Composite bodies have widespread applications in mechanical engineering, from automobiles to aircraft to rockets. For example, an automobile wheel comprises...
1.4K
01:29Composition of Body Fluids
2.7K
Water functions as a solvent accommodating various solutes, which can be categorized under electrolytes and non-electrolytes. Non-electrolytes are usually held together by covalent bonds, restricting them from dissociating in solution, thereby leading to a lack of electrically charged components upon dissolving in water. They are predominantly organic molecules, such as glucose, creatinine, and urea. Electrolytes, on the other hand, are compounds that can break down into ions in water.
2.7K
01:25Metabolic States of the Body: The Absorptive State
1.7K
During the absorptive state, which lasts approximately four hours after a meal, the body absorbs nutrients from the gastrointestinal tract. The carbohydrates, proteins, and lipids we consume are broken down into monosaccharides, amino acids, and free fatty acids for absorption. While carbohydrates and proteins are absorbed as-is, lipids are absorbed in their broken-down forms and then re-esterified into triglycerides within enterocytes before being packaged into chylomicrons. These absorbed...
1.7K
01:18Metabolic States of the Body: The Postabsorptive State
1.4K
The postabsorptive state usually starts about four hours after a meal and lasts until the next meal is eaten. During this time, the digestive system stops absorbing nutrients, and the body uses stored energy reserves to maintain stable blood glucose levels.
Initially, glycogen stored in the liver is broken down to release glucose into the bloodstream, while glycogen in the muscles is broken down to supply glucose for energy directly within the muscle cells. As glycogen stores diminish,...
Initially, glycogen stored in the liver is broken down to release glucose into the bloodstream, while glycogen in the muscles is broken down to supply glucose for energy directly within the muscle cells. As glycogen stores diminish,...
1.4K
01:24Metabolic States of the Body: Fasting and Starvation
2.9K
During the initial hours of fasting, the body uses up its glycogen stores as an energy source. Once these glycogen reserves are depleted, the body begins breaking down stored triglycerides and structural proteins. During this stage, glycerol becomes a key substrate for gluconeogenesis, while free fatty acids undergo beta-oxidation to provide energy for tissues, such as skeletal muscle. In the fasting state, the body spares protein breakdown as much as possible to conserve muscle and structural...
2.9K