スタチンと認知症のリスク
H Jick1, G L Zornberg, S S Jick
1Boston Collaborative Drug Surveillance Program, Boston University School of Medicine, Lexington, MA 02421, USA.
Lancet (London, England)
|November 23, 2000
まとめ
スタチンは,高齢者の認知症リスクを大幅に軽減します. この研究では,スタチンを処方された個人が,高脂血症状態とは関係なく,認知症を発症するリスクを大幅に低下させることが判明しました.
科学分野:
- エピデミオロジー エピデミオロジー
- 神経学 神経学とは
- 薬理学 薬理学とは
背景:
- 認知症は65歳以上の人の10%に影響します.
- 血管および脂質関連のメカニズムは,アルツハイマー病および血管性認知症に関与しています.
- 認知症のリスクに対する脂質低下剤の影響を調査することは極めて重要です.
研究 の 目的:
- HMGCoA (3-hydroxy-3-methylglutaryl-coenzyme A) 還元酵素阻害剤 (スタチン) とその他の脂質低下剤が認知症に及ぼす潜在的な効果を調査する.
- スタチンの使用と認知症のリスクとの関連性を評価するために,50歳以上の個人に.
主な方法:
- イギリスの368の一般診療所のデータを用いて,ネスドケース・コントロール試験の設計が採用されました.
- 研究集団には,脂質低下剤を投与された50歳以上の個体,治療されていない高脂血症患者,またはランダムに選択された対照群が含まれていました.
- 認知症と診断された症例は,年齢,性別,診療所,インデックス日付に基づいて最大4つの対照群と一致しました.
主要な成果:
- この研究では284人の認知症患者と1080人の対照群を対象とした.
- スタチンを処方された個人は,認知症のリスクが著しく低下したことを示した (調整された確率比0.29,p=0.002).
- 認知症のリスクと未治療の高脂血症症,または非スタチン製の脂質低下剤との間に有意な関連性は見つかりませんでした.
結論:
- スタチンの処方箋は,50歳以上の人々の認知症のリスクを大幅に低下させました.
- このリスクの低下は,未治療の高脂血症や,スタチン以外の脂質低下剤の使用とは無関係であった.
- この研究は,アルツハイマー病と他の形態の認知症を区別することができなかった.
関連する概念動画
01:25Drug Classes and Categories
Drugs can be classified according to their chemical composition or their intended therapeutic application. For instance, anti-infective agents that possess the ability to eliminate pathogens or suppress their growth and reproduction can be grouped based on the organisms they target or their chemical structure. Furthermore, drugs can be divided into prescription, nonprescription, or controlled substances. Prescription medications, such as antibiotics, require oversight from a licensed healthcare...
01:14CNS Depressants: Barbiturates and Benzodiazepines
CNS depressants include drugs from the category of barbiturates and benzodiazepines. They are valuable medications for managing anxiety disorders and insomnia. Barbiturates, once used to induce and maintain sleep, have been replaced mainly by benzodiazepines due to barbiturate's toxicity, tolerance, and overdose risks. They interact with GABAA receptors, leading to sedation at low doses and potentially coma and death at higher doses. Phenobarbital, a long-acting barbiturate, possesses...
01:23Sedatives and Hypnotics: Overview
Sedatives are drugs that alleviate anxiety, while hypnotics induce sleep. Both classes of medication suppress neuronal activity, leading to a calming effect for sedatives and facilitating sleep for hypnotics.
Sedative-hypnotics are categorized into barbiturates, benzodiazepines (BZDs), and non-benzodiazepines or Z-drugs. These drugs work by suppressing central nervous system activity, and this suppression is dose-dependent. Older sedative medications, like barbiturates, follow a linear curve in...
Sedative-hypnotics are categorized into barbiturates, benzodiazepines (BZDs), and non-benzodiazepines or Z-drugs. These drugs work by suppressing central nervous system activity, and this suppression is dose-dependent. Older sedative medications, like barbiturates, follow a linear curve in...
01:19Sedatives and Hypnotics Drugs: Benzodiazepines
Benzodiazepines have both sedative and hypnotic properties. They include compounds such as diazepam (Valium) and alprazolam (Xanax). Structurally, their cores are similar, consisting of the fusion of a benzene ring and a diazepine ring, but they share a common mechanism of action in the central nervous system (CNS).
Benzodiazepines work by enhancing the effects of the inhibitory neurotransmitter GABA. They bind to the GABAA receptor, increasing its affinity for GABA, which opens chloride...
Benzodiazepines work by enhancing the effects of the inhibitory neurotransmitter GABA. They bind to the GABAA receptor, increasing its affinity for GABA, which opens chloride...
01:17Sedatives and Hypnotics Drugs: Miscellaneous Agents
Sedatives and hypnotics encompass a wide range of substances, each with its unique mechanism of action, uses, and potential adverse effects.
Melatonin congeners like ramelteon (Rozerem) and tasimelteon (Hetlioz) selectively bind to melatonin receptors (MT1 and MT2) and thus mimic the actions of melatonin, a hormone that regulates sleep-wake cycles. Tasimelteon is primarily used for non-24-hour sleep-wake disorder, common in blind patients. They are also used to treat conditions like insomnia...
Melatonin congeners like ramelteon (Rozerem) and tasimelteon (Hetlioz) selectively bind to melatonin receptors (MT1 and MT2) and thus mimic the actions of melatonin, a hormone that regulates sleep-wake cycles. Tasimelteon is primarily used for non-24-hour sleep-wake disorder, common in blind patients. They are also used to treat conditions like insomnia...
01:28Depressants
Depressant drugs, including alcohol and sedative-hypnotics, diminish central nervous system activity by enhancing the action of gamma-aminobutyric acid (GABA), a neurotransmitter that reduces brain activity and promotes relaxation. These substances can have various therapeutic uses but also pose significant risks, especially when misused or combined.
Alcohol is a common depressant that can induce a sense of relaxation and reduced inhibition at low doses. Contrary to its occasional...
Alcohol is a common depressant that can induce a sense of relaxation and reduced inhibition at low doses. Contrary to its occasional...