典型抗精神病药为何会引起锥体外系副作用？
Why do typical antipsychotics cause extrapyramidal side effects?
典型抗精神病药强效阻断中枢多巴胺D2受体以缓解幻觉妄想，但黑质-纹状体通路的多巴胺也被抑制，造成乙酰胆碱相对亢进，出现震颤、僵硬和运动迟缓等锥体外系症状。新型（非典型）药物对D2选择性较低，此类副作用相对减少。一般需权衡疗效与运动副作用。
Typical antipsychotics potently block central dopamine D2 receptors to relieve psychosis, but dopamine in the nigrostriatal pathway is also suppressed, leaving acetylcholine relatively overactive and producing tremor, rigidity, and bradykinesia. Atypical agents are less D2-potent and cause fewer such effects. Efficacy must be balanced against motor side effects.
难度 专业 · 适合 初中(12-15)
CC BY 4.0 · 已核验 · Verified 2026-10-03 · 2 条独立证据
来源 · Source
《药理学》（杨宝峰主编，第9版），人民卫生出版社
Pharmacology (Yang Baofeng, 9th ed.), People's Medical Publishing House
独立核验依据 · Independent verification: 核验依据 2 DOUBAN ISBN 标识 9787117266048（按标识回读: 药理学（第9版））
#抗精神病药 #D2受体 #锥体外系
氯胺酮为何能比传统抗抑郁药更快起效？
Why can ketamine act as an antidepressant much faster than traditional drugs?
氯胺酮作为NMDA受体拮抗剂，快速提升突触间隙谷氨酸，经AMPA受体激活触发脑源性神经营养因子释放和突触可塑性增强。这绕过了单胺系统缓慢的适应过程，可在数小时内改善难治性抑郁。但其作用短暂且需警惕解离与滥用风险。
As an NMDA receptor antagonist, ketamine rapidly raises synaptic glutamate, and via AMPA receptors triggers BDNF release and enhanced synaptic plasticity. This bypasses the slow adaptive processes of monoamine systems, improving treatment-resistant depression within hours. Effects are brief, with dissociation and misuse risks to manage.
难度 专业 · 适合 高中(15-18)
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
Autry AE等，《NMDA受体阻断在静息态触发快速抗抑郁行为反应》，自然(Nature) 2011;475(7354):91-95
Autry AE, et al. NMDA receptor blockade at rest triggers rapid behavioural antidepressant responses. Nature. 2011;475(7354):91-95
独立核验依据 · Independent verification: 核验依据 1 CROSSREF 标识 10.1038/nature10130：NMDA receptor blockade a
#氯胺酮 #NMDA受体 #快速抗抑郁
认知行为治疗（CBT）改善抑郁焦虑的基本思路是什么？
What is the basic rationale by which cognitive behavioral therapy (CBT) helps depression and anxiety?
CBT认为情绪和行为受个体对事件的认知评价影响，通过识别并修正歪曲的负性自动思维来改变反应模式。它结构化和短期导向，常作为轻中度情绪障碍的一线心理干预。一般需与治疗师协作完成家庭练习。
CBT holds that emotions and behaviors are shaped by how one interprets events; it targets and revises distorted negative automatic thoughts to change responses. It is structured, time-limited, and often first-line for mild-to-moderate disorders. It usually involves therapist-guided between-session practice.
难度 进阶 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-10-04
来源 · Source
美国心理学会(APA)《抑郁障碍心理治疗实践指南》
American Psychological Association (APA). Practice Guideline for Psychotherapy for Depression
独立核验依据 · Independent verification: 核验依据 1 ISBN 9780367561208 (2020)
#认知行为治疗 #自动思维 #心理治疗
选择性5-羟色胺再摄取抑制剂（SSRI）是如何发挥抗抑郁作用的？
How do selective serotonin reuptake inhibitors (SSRIs) exert antidepressant effects?
SSRI特异性抑制突触前膜对5-羟色胺（5-HT）的再摄取，使突触间隙5-HT浓度升高，增强血清素能神经传递。临床上用于抑郁和多种焦虑障碍。一般需连续服药数周才显效，并应在医生指导下调整剂量。
SSRIs selectively block presynaptic reuptake of serotonin (5-HT), raising extracellular 5-HT and enhancing serotonergic neurotransmission. They are used for depression and several anxiety disorders. Effects typically need several weeks of continuous use and dose should be guided by a clinician.
难度 进阶 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-10-03 · 2 条独立证据
来源 · Source
《药理学》（杨宝峰主编，第9版），人民卫生出版社
Pharmacology (Yang Baofeng, 9th ed.), People's Medical Publishing House
独立核验依据 · Independent verification: 核验依据 2 DOUBAN ISBN 标识 9787117266048（按标识回读: 药理学（第9版））
#SSRI #5-羟色胺 #再摄取
锂盐在双相情感障碍治疗中的独特价值是什么？
What is the unique value of lithium in treating bipolar disorder?
锂盐是双相障碍心境稳定治疗的经典药物，对躁狂急性发作和复发预防均有效，并被认为可降低自杀风险。其治疗窗较窄，需定期监测血锂浓度与肾功能、甲状腺功能。一般作为长期维持治疗的重要选择。
Lithium is a classic mood stabilizer for bipolar disorder, effective in acute mania and relapse prevention, and is associated with reduced suicide risk. Its therapeutic window is narrow, requiring regular blood-level, renal, and thyroid monitoring. It is a mainstay of long-term maintenance.
难度 进阶 · 适合 高中(15-18)
CC BY 4.0 · 来源待核验 · Source pending review
来源 · Source
出处备注：著录仅给书名，无版次与年份；同一书名常对应多个版次，不臆测具体版本。
世界生物精神病学协会(WFSBP)《双相情感障碍治疗指南》
World Federation of Societies of Biological Psychiatry (WFSBP). Guidelines for Bipolar Disorders
#锂盐 #双相障碍 #心境稳定
苯二氮䓬类药物（如地西泮）是如何产生镇静抗焦虑作用的？
How do benzodiazepines (e.g., diazepam) produce sedation and anxiolysis?
苯二氮䓬类结合GABA_A受体上的特异性位点，增强 GABA 这种抑制性神经递质与受体的亲和力，使氯离子内流增加、神经元超极化而抑制兴奋。它起效快，常用于急性焦虑或失眠，但长期使用有依赖风险。一般建议短期、最低有效剂量使用。
Benzodiazepines bind a specific site on GABA_A receptors, enhancing the affinity of GABA—the main inhibitory neurotransmitter—so more chloride enters neurons, hyperpolarizing and dampening excitability. They act quickly for acute anxiety or insomnia but carry dependence risk with long use. Short-term, lowest-effective dosing is generally advised.
难度 进阶 · 适合 初中(12-15)
CC BY 4.0 · 已核验 · Verified 2026-10-03 · 2 条独立证据
来源 · Source
《药理学》（杨宝峰主编，第9版），人民卫生出版社
Pharmacology (Yang Baofeng, 9th ed.), People's Medical Publishing House
独立核验依据 · Independent verification: 核验依据 2 DOUBAN ISBN 标识 9787117266048（按标识回读: 药理学（第9版））
#苯二氮䓬 #GABA #镇静
抑郁症的核心症状一般包括哪些？
What are the core symptoms generally included in major depression?
抑郁症的核心症状通常是持续两周以上的心境低落和兴趣或愉快感显著减退，常伴精力下降、睡眠和食欲改变。它不是单纯「想不开」，而是涉及脑内神经递质与回路的医学疾病。一般建议症状持续且影响生活时尽早寻求专业评估。
The core features are a persistently low mood and markedly diminished interest or pleasure lasting more than two weeks, often with low energy and changed sleep or appetite. It is a medical condition involving brain neurotransmitters and circuits, not mere weakness. Professional evaluation is advised when symptoms persist and impair life.
难度 进阶 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
李凌江 陆林 主编,《精神病学》第3版,人民卫生出版社,2015
Li Lingjiang and Lu Lin eds., Psychiatry, 3rd ed., PMPH, 2015
独立核验依据 · Independent verification: 核验依据 2 DOUBAN ISBN 标识 9787117205481（按标识回读: 精神病学 第3版）
#抑郁症 #心境低落 #神经递质