科学的な
研究
Piper methysticum に関する90以上の科学的論文、臨床研究、専門書のキュレーションされたコレクション。このデータベースは、効果、安全性、文化的意義についての客観的な啓蒙を目的としています。
2026年3月の新着
これら4件の研究が新たに追加されました。その知見はすでに作用、成分、文化、安全性の各ページに反映されています。
Desmethoxyyangonin, a Potent Cannabinoid Receptor 2 Agonist, Alleviates Bone Loss in Ovariectomized Mice via Dual Regulation of Osteoblast and Osteoclast Function
Mening'oo G.W., Yuan H., Wang M., Wang W., Ma F., Zhang W., Ma J., Chen J., Jiang Y., Ma X.
Mening'oo et al. (2026) studied DMY in ovariectomized mice, cell models and computer simulations. The data support a CB2-dependent bone effect in those preclinical models, not treatment of osteoporosis in humans or an effect of a kava beverage.
Kava consumption and the rise of sociopolitical complexity in Oceania
Hrnčíř V., Sheehan O., Claessens S., Gray R.D.
83のオセアニア社会の分析により、伝統的なカヴァの消費と政治的複雑性および社会階層との間に正の関係があることが示されました。しかし、この結果は非独立性の制御に対しては頑健ではありません。空間的な非独立性を制御した後では、カヴァ飲用と社会政治的特徴との間に共進化の証拠は見つかりませんでした。カヴァの文化的意義にもかかわらず、その消費は社会政治的複雑性の主要な推進力ではなかった可能性が高いです。
Flavokawain A: A Natural MAO-A Inhibitor With Therapeutic Promise for Depression
Pawa V., Shimpi A., Oh J.M., Kadam V., Patil B., Gawli C., Jagtap V., Mathew B., Sudevan S., Ansari I., Kim H., Patel H.M.
Pawa et al. (2026) found selective MAO-A inhibition by flavokawain A in in-vitro enzyme assays (IC50 0.077 µM); an artificial-membrane assay supported possible blood-brain-barrier passage, alongside in-silico modelling. The study tested neither humans nor antidepressant treatment with kava.
Kavain for health promotion and disease mitigation: Pharmacological promise and therapeutic perspectives
Pampita N., Sajeev A., Hegde M., Alqahtani M.S., Abbas M., Kavalakatt J., Sethi G., Bishayee A., Kunnumakkara A.B.
Pampita et al. (2026) is a review of kavain. It summarizes mainly mechanistic and preclinical findings plus limited clinical anxiety data; it calls for further human studies of efficacy and safety across the many other disease areas.
標準的な文献 & 推奨
Kava: The Pacific Elixir - The Definitive Guide to Its Ethnobotany, History, and Chemistry
Vincent Lebot, Mark Merlin, Lamont Lindstrom • 1997
カヴァに関する標準的な作品。Piper methysticumの植物学、化学、民族植物学、人類学、経済学に関する包括的な論文。
研究データベース
テーマ、著者、または年で全コレクションを検索します。
Nekrotisierende Hepatitis nach Einnahme pflanzlicher Heilmittel
In Vitro Toxicity of Kava Alkaloid, Pipermethystine, in HepG2 Cells Compared to Kavalactones
Kava: From Ethnology to Pharmacology
Fatal fulminant hepatic failure induced by a natural therapy containing kava
Acute Liver Failure After Administration of the Herbal Tranquilizer Kava-Kava (Piper methysticum)
Cytochrome P450 2E1 (CYP2E1) Is the Principal Enzyme Responsible for Urethane Metabolism
Toxicity of kava pyrones, drug safety and precautions – a case study
Hepatic Toxicity Possibly Associated With Kava-Containing Products—United States, Germany, and Switzerland, 1999-2002
Inhibition of Cytochrome P450 3A4 by Extracts and Kavalactones ofPiper methysticum(Kava-Kava)
Inhibition of Human Cytochrome P450 Activities by Kava Extract and Kavalactones
Effects of herbal components on cDNA-expressed cytochrome P450 enzyme catalytic activity
Kava-Induced Fulminant Hepatic Failure
Kava-kava and anxiety: Growing knowledge about the efficacy and safety
Therapeutic Potential of Kava in the Treatment of Anxiety Disorders
Herbal Medicines and Epilepsy: The Potential for Benefit and Adverse Effects
Kava Hepatotoxicity
Myoglobinuria after ingestion of extracts of guarana, Ginkgo biloba and kava
Kava: Piper methysticum
Biotransformation of alprazolam by members of the human cytochrome P4503A subfamily
Effect of kava extract and individual kavapyrones on neurotransmitter levels in the nucleus accumbens of rats
Inhibition of platelet MAO-B by kava pyrone-enriched extract from Piper methysticum Forster (kava-kava).
Acute effects of kava, alone or in combination with alcohol, on subjective measures of impairment and intoxication and on cognitive performance
Antithrombotic action of the kava pyrone (+)-kavain prepared from Piper methysticum on human platelets.
Coma from the Health Food Store: Interaction between Kava and Alprazolam
Anticonvulsive action of (±)-kavain estimated from its properties on stimulated synaptosomes and Na+ channel receptor sites
Genetic control of kavalactone chemotypes in Piper methysticum cultivars
Kava and dopamine antagonism
Effects of methysticin on three different models of seizure like events studied in rat hippocampal and entorhinal cortex slices
Human Cytochrome P450 Enzymes
POSITIVE INTERACTION OF ETHANOL AND KAVA RESIN IN MICE
Rhabdomyolysis induced by a caffeine overdose
Uptake into Mouse Brain of Four Compounds Present in the Psychoactive Beverage Kava
Strychnine antagonistic potency of pyrone compounds of the kavaroot (Piper methysticum Forst.)
A Chemical and Pharmacological Investigation of Piper Methysticum Forst
A re-evaluation of kava (Piper methysticum)
An Updated Review on the Psychoactive, Toxic and Anticancer Properties of Kava
Assessment of the efficacy of Piper methysticum (Micrembryeae: Piperaceae) as a bioinsecticide...
Kava (Piper methysticum)-An Important Source of Income for the Rural Farmers in Fiji Islands
Call for scientific data for use in HMPC assessment work on Piper methysticum G. Forst., rhizoma
Piper methysticum G. Forst (Piperaceae) in the central nervous system: phytochemistry, pharmacology and mechanism of action
Assessment of the risk of hepatotoxicity with kava products
22 November 2016
Public statement on Piper methysticum G. Forst., rhizoma
Assessment report on Piper methysticum G. Forst., rhizoma
21 November 2017
Isolation and Purification of Potent Growth Inhibitors
Kava (Piper methysticum) beverage for traditional and recreational use
Kava (Kavalactones) Fact Sheet
Kava: a review of the safety of traditional and recreational beverage consumption
Kava as a Clinical Nutrient: Promises and Challenges
Drug Enforcement Administration
Piper methysticum (Kava)
Overview of comments received on draft public statement on Piper methysticum G. Forst., rhizoma
Measuring the Chemical and Cytotoxic Variability of Commercially Available Kava (Piper methysticum G. Forster)
Review of the published literature pertaining to the safety of Kava for use in conventional foods
Piper methysticum G. Forst (Piperaceae) in the central nervous system: phytochemistry, pharmacology and mechanism of action
Prevalence and Use Patterns of Kava (Piper methysticum) in a US Nationally Representative Sample
Re-introduction of Kava (Piper methysticum) to the EU: Is There a Way Forward?
Prevalence and Use Patterns of Kava (Piper methysticum) in a US Nationally
Rechtliche Einordnung von Kava (Piper
Legal Classification of Kava (Piper methysticum) as a Food in the EU
Kava extract for treating anxiety (Cochrane Review)
カヴァの抗不安効果に関する最も重要なメタアナリシス
Kava in the treatment of generalized anxiety disorder: a double-blind, randomized, placebo-controlled study
遺伝的分析を伴う現代のRCT
Kava-Kava Extract LI 150 Is as Effective as Opipramol and Buspirone in Generalised Anxiety Disorder
製薬抗不安薬との直接比較
Kava-kava in the treatment of anxiety
抗不安効果に関する初期の臨床証拠
Verbesserung der Schlafqualität: Zur Wirkung von Kava-Extrakt WS 1490 bei Schlafstörungen
睡眠改善効果に関する先駆的研究
Efficacy of a Special Kava Extract (Piper methysticum) in Patients with States of Anxiety, Tension and Excitedness of Non-Mental Origin
標準化された抽出物を用いた初期のRCT
The acute effects of kava on memory
認知安全性評価にとって重要
Effects of kava-kava extract and diazepam on visually evoked potentials, saccades and cognitive performance
ベンゾジアゼピンとの直接比較
Assessment of the Risk of Hepatotoxicity with Kava Products
カヴァの安全性に関する重要なWHO文書
Kava: A Review of the Safety of Traditional and Recreational Beverage Consumption
伝統的な飲料と抽出物の重要な区別
Assessment Report on Piper methysticum G. Forst., rhizoma
公式な欧州医薬品評価
Kava hepatotoxicity: a clinical survey and critical analysis of 26 suspected cases
症例報告の重要な批判的再評価
Kava hepatotoxicity in traditional and modern use: the presumed Pacific kava paradox hypothesis revisited
伝統的な使用と現代的な使用の間のパラドックスの分析
Kava hepatotoxicity - a clinical review
リスク最小化に関する重要な推奨事項
Pharmacokinetic and pharmacodynamic drug interactions with Kava (Piper methysticum Forst. f.)
薬物相互作用に関する包括的なレビュー
Traditional Aqueous Kava Extracts Inhibit Cytochrome P450 1A2 in Humans: Protective Effect Against Environmental Carcinogens?
人間におけるCYP1A2阻害の証明
Potential for interaction of kava and St. John's wort with drugs
他の一般的な植物性薬剤との比較
The effectiveness and safety of Kava Kava for treating anxiety symptoms: A systematic review and analysis of randomized clinical trials
有効性と安全性に関する最新の系統的レビュー
Kava: a comprehensive review of efficacy, safety, and psychopharmacology
抗不安効果に関する重要なメタアナリシス
Hepatitis induced by Kava (Piper methysticum rhizoma)
メカニズムに関する重要な貢献
A systematic review of the safety of kava extract in the treatment of anxiety
初期の系統的安全性評価
Toxicity of Kava Kava
詳細な毒性学的分析
Prevalence and use patterns of kava (Piper methysticum) in a US nationally representative sample
この研究はマーケティング会社を通じた非確率抽出を用いています(n=2,000、半数がカバ使用を報告)。効果と望ましくない作用の割合は回答者の自己申告であり、人口全体の発生率ではありません。 カバ使用者の88.1%が、リラックスとストレス軽減に有効だったと評価しました。最も多く報告された体験は、幸福感、リラックス感、親しみやすさでした。最も多い望ましくない作用は眠気(15.4%)と発汗(15.0%)でした。
Integrated 16S rRNA Sequencing and Metabolomics Analysis Reveal the Protective Effects of (E)-Flavokawain A on AOM/DSS-Induced Colorectal Cancer in Mice
カヴァ成分の潜在的な抗がん性質についての新たな認識
Design of a Multienzyme Derived from Mouse Fatty Acid Synthase for the Compartmentalized Production of 2-Pyrone Polyketides
カヴァラクトン生合成の理解における進歩
Desmethoxyyangonin, a Potent Cannabinoid Receptor 2 Agonist, Alleviates Bone Loss in Ovariectomized Mice via Dual Regulation of Osteoblast and Osteoclast Function
Mening'oo et al. (2026) studied DMY in ovariectomized mice, cell models and computer simulations. The data support a CB2-dependent bone effect in those preclinical models, not treatment of osteoporosis in humans or an effect of a kava beverage.
Kava consumption and the rise of sociopolitical complexity in Oceania
83のオセアニア社会の分析により、伝統的なカヴァの消費と政治的複雑性および社会階層との間に正の関係があることが示されました。しかし、この結果は非独立性の制御に対しては頑健ではありません。空間的な非独立性を制御した後では、カヴァ飲用と社会政治的特徴との間に共進化の証拠は見つかりませんでした。カヴァの文化的意義にもかかわらず、その消費は社会政治的複雑性の主要な推進力ではなかった可能性が高いです。
Flavokawain A: A Natural MAO-A Inhibitor With Therapeutic Promise for Depression
Pawa et al. (2026) found selective MAO-A inhibition by flavokawain A in in-vitro enzyme assays (IC50 0.077 µM); an artificial-membrane assay supported possible blood-brain-barrier passage, alongside in-silico modelling. The study tested neither humans nor antidepressant treatment with kava.
Kavain for health promotion and disease mitigation: Pharmacological promise and therapeutic perspectives
Pampita et al. (2026) is a review of kavain. It summarizes mainly mechanistic and preclinical findings plus limited clinical anxiety data; it calls for further human studies of efficacy and safety across the many other disease areas.

