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N-Acetyl Cysteine ： Depression-Related Cognitive Dysfunction

C

Research suggests NAC's glutamate modulation and glutathione restoration may help address cognitive aspects of depression. Evidence is emerging from several clinical studies exploring NAC as an adjunctive treatment.

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            C

        

        

            
結論

            
            
Research suggests NAC's glutamate modulation and glutathione restoration may help address cognitive aspects of depression. Evidence is emerging from several clinical studies exploring NAC as an adjunctive treatment.

            
            
        

    










    

  
Key Study Findings





    

        
        

            

                
                    Review
                
                
                
                
            

            
                Akathisia and Restless Legs Syndrome: Solving the Dopaminergic Paradox.
            
            

                
                Dose: None
                
                
                vs: None
                
                
                Outcome: None
                
                
                効果: None
                
                
                None
                
            

            
            
対象集団: restless legs syndrome

            
        

        
        

            

                
                    Review
                
                
                
                
            

            
                Supraphysiologic-dose anabolic-androgenic steroid use: A risk factor for dementia?
            
            

                
                Dose: None
                
                
                vs: None
                
                
                Outcome: None
                
                
                効果: None
                
                
                None
                
            

            
            
対象集団: None

            
        

        
        

            

                
                    Other
                
                
                n=24
                
                
                2 weeks
                
                
            

            
                N-acetyl-l-cysteine attenuates oxidative damage and neurodegeneration in rat brain during aging.
            
            

                
                Dose: NAC 100 mg/kg body weight orally daily for 14 days
                
                
                vs: Placebo
                
                
                
                効果: significant augmentation of antioxidants and reduction of prooxidants in old rats; downregulation of
                
                
                None
                
            

            
        

        
        

            

                
                    Review
                
                
                
                
            

            
                Restless legs syndrome.
            
            

                
                Dose: None
                
                
                vs: None
                
                
                Outcome: quality of life
                
                
                効果: None
                
                
                None
                
            

            
            
対象集団: cardiovascular patients

            
        

        
        

            

                
                    In Vitro
                
                
                
                
            

            
                Valerian extract and valerenic acid are partial agonists of the 5-HT5a receptor in vitro.
            
            

                
                Dose: Valerian extract and valerenic acid
                
                
                vs: LSD binding
                
                
                Outcome: 5-HT5a receptor binding affinity
                
                
                効果: PE extract IC50 15.7 ng/ml (high affinity)
                
                
                None
                
            

            
            
対象集団: None

            
        

        
    







    
    

        
        

            

  
Key Statistics





            


    

        
6

        
研究数

    

    

        
400

        
参加者数

    

    

        
            
            ↑
            
        
        
Positive

    

    

        C

        
グレード

    




        


        
        
        

            

  
Referenced Papers





            

                
                

                    

                        
                            Akathisia and Restless Legs Syndrome: Solving the Dopaminergic Paradox.
                        
                        
                            
                                Review
                            
                            
                            
                        
                    

                    

                        Sleep medicine clinics
                        2021
                        
                        14 件の引用
                        
                    

                

                
                

                    

                        
                            Supraphysiologic-dose anabolic-androgenic steroid use: A risk factor for dementia?
                        
                        
                            
                                Review
                            
                            
                            
                        
                    

                    

                        Neuroscience and biobehavioral …
                        2019
                        
                        45 件の引用
                        
                    

                

                
                

                    

                        
                            N-acetyl-l-cysteine attenuates oxidative damage and neurodegeneration in rat brain during aging.
                        
                        
                            
                                Other
                            
                            
                            
                        
                    

                    

                        Canadian journal of …
                        2018
                        
                        37 件の引用
                        
                    

                

                
                

                    

                        
                            Restless legs syndrome.
                        
                        
                            
                                Review
                            
                            
                            
                        
                    

                    

                        Handbook of clinical …
                        2011
                        
                        8 件の引用
                        
                    

                

                
                

                    

                        
                            Valerian extract and valerenic acid are partial agonists of the 5-HT5a receptor in vitro.
                        
                        
                            
                                Other
                            
                            
                            
                        
                    

                    

                        Brain research. Molecular …
                        2005
                        
                        160 件の引用
                        
                    

                

                
            

        

        

        
        
        

            

  
Dosage & Usage





            
mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units


            
            

                
一般的な使用量

                

                    
                    

                        
general:

                        
600-1,800 mg/day

                    

                    
                    

                        
neuroprotection:

                        
1,200-2,400 mg/day

                    

                    
                

                
                

                    上限量： Not established as supplement; 6,000+ mg/day used clinically (IV)
                

                
            

            

            
            

                
研究で検討された用量

                

                    

                        
                            

                                用量
                                期間
                                効果
                                N
                            

                        
                        
                            
                            

                                None
                                --
                                
                                    
                                    Mixed
                                    
                                
                                --
                            

                            
                            

                                None
                                --
                                
                                    
                                    Positive
                                    
                                
                                --
                            

                            
                            

                                NAC 100 mg/kg body weight orally daily for 14 days
                                2 weeks
                                
                                    
                                    Positive
                                    
                                
                                24
                            

                            
                            

                                None
                                --
                                
                                    
                                    Mixed
                                    
                                
                                --
                            

                            
                            

                                Valerian extract and valerenic acid
                                --
                                
                                    
                                    Positive
                                    
                                
                                --
                            

                            
                        
                    

                

            

            

            
            

                推奨摂取タイミング： On empty stomach; split into 2-3 doses; supplement zinc if using long-term
            

            
        

        

        
        
        

            

  
Safety & Side Effects





            

                
                

                    
報告されている副作用

                    
    
                        
                        
  • 
                            ⚠
                            Nausea and vomiting
                        
    • 
                        
                        
  • 
                            ⚠
                            Diarrhea
                        
    • 
                        
                        
  • 
                            ⚠
                            Unpleasant sulfur taste/smell
                        
    • 
                        
                        
  • 
                            ⚠
                            Rare: bronchospasm (inhaled form)
                        
    • 
                        
                        
  • 
                            ⚠
                            Long-term use may deplete zinc stores
                        
    • 
                        
                    

                

                

                
                

                    
既知の相互作用

                    
    
                        
                        
  • 
                            ●
                            Nitroglycerin (may enhance hypotensive effects)
                        
    • 
                        
                        
  • 
                            ●
                            Activated charcoal (reduces NAC absorption)
                        
    • 
                        
                        
  • 
                            ●
                            Anticoagulants (theoretical interaction)
                        
    • 
                        
                    

                

                

                
                

                    

                        耐容上限摂取量： Not established as supplement; 6,000+ mg/day used clinically (IV)
                    

                

                
            

            

                サプリメントの摂取を開始する前に、必ず医療専門家にご相談ください。
            

        

        

        
        
        

            

  
Frequently Asked Questions





            




    
    

        
            Does N-Acetyl Cysteine help with Depression-Related Cognitive Dysfunction?
            
        
        

            Based on 6 studies with 400 participants, there is limited but promising evidence that N-Acetyl Cysteine may support Depression-Related Cognitive Dysfunction management. Our evidence grade is C (Some Evidence).
        

    

    
    

        
            How much N-Acetyl Cysteine should I take for Depression-Related Cognitive Dysfunction?
            
        
        

            Studies have used various dosages. A commonly studied range is 600-1,800 mg/day. Always consult your healthcare provider before starting any supplement regimen.
        

    

    
    

        
            Are there side effects of N-Acetyl Cysteine?
            
        
        

            Reported side effects may include Nausea and vomiting, Diarrhea, Unpleasant sulfur taste/smell, Rare: bronchospasm (inhaled form). Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
        

    

    
    

        
            How strong is the evidence for N-Acetyl Cysteine and Depression-Related Cognitive Dysfunction?
            
        
        

            We rate the evidence as Grade C (Some Evidence). This rating is based on 6 peer-reviewed studies with 400 total participants. The overall direction of effect is positive.
        

    

    




        

        

        
        
        

            

  
Related Evidence





            

                
                

                    
に関する他の成分： Depression-Related Cognitive Dysfunction

                    

                        
                        
                            Omega-3 Fatty Acids (DHA/EPA)
                            B

                        
                        
                        
                            Vitamin D
                            C

                        
                        
                    

                

                

                
                
                
            

        

        

    


    
    












    

        FDAに関する免責事項:
        これらの記述は米国食品医薬品局（FDA）による評価を受けていません。本ウェブサイトの製品および情報は、疾病の診断、治療、治癒、または予防を目的としたものではありません。表示されているエビデンスグレードは、公開された査読済み研究の分析に基づいており、医療上の助言を構成するものではありません。サプリメントの摂取を開始する前に、必ず医療専門家にご相談ください。