一、核心字段与运算符速查表
1. 核心字段标识
| 字段名称 | 字段标识格式 | 功能说明 | 示例 |
|---|---|---|---|
| 医学主题词 | [MeSH Terms] | 基于规范MeSH词表精准检索,提升查准率 | “Lung Neoplasms”[MeSH Terms] |
| 标题 | [Title] | 仅匹配文献标题中的关键词 | “PD-1 inhibitor”[Title] |
| 摘要 | [Abstract] | 匹配文献摘要内容 | “immune checkpoint”[Abstract] |
| 作者 | [Author] | 检索特定作者的研究成果 | “Zhang Y”[Author] |
| 期刊名称 | [Journal] | 限定期刊来源 | “New England Journal of Medicine”[Journal] |
| 出版日期 | [Date – Publication] | 限定文献发表时间范围 | (“2020/01/01” : “2025/12/31”)[Date – Publication] |
| 文献类型 | [Publication Type] | 筛选特定类型文献(试验、综述等) | “Randomized Controlled Trial”[Publication Type] |
| PubMed唯一标识 | [PMID] | 精准定位单篇文献 | 37256432[PMID] |
| 研究对象(人类) | [Species=Homo sapiens] | 限定人类相关研究 | [Species=Homo sapiens] |
2. 常用运算符
| 运算符类型 | 符号/关键词 | 功能说明 | 示例 |
|---|---|---|---|
| 布尔逻辑 | AND | 取交集,同时包含多个关键词 | “COVID-19” AND “vaccine” |
| 布尔逻辑 | OR | 取并集,包含任意一个关键词 | “hypertension” OR “high blood pressure” |
| 布尔逻辑 | NOT | 排除特定内容 | “diabetes” NOT “type 1” |
| 截词符 | * | 替代任意多个字符,拓展关键词范围 | “oncolog*”(匹配oncology、oncological等) |
| 位置符 | NEAR/n | 两词间距不超过n个字符,顺序不限 | “immune therapy” NEAR/5 “melanoma” |
| 精确匹配 | ” “ | 锁定特定短语,避免拆分检索 | “CAR-T cell therapy” |
| 优先级 | ( ) | 调整运算顺序,组合复杂检索条件 | ((“PD-1” OR “PD-L1”) AND “immunotherapy”) AND “solid tumor” |
二、医学细分领域检索式模板
1. 肿瘤学
- PD-1抑制剂治疗非小细胞肺癌:(“PD-1 inhibitor”[Title/Abstract] OR “programmed cell death protein 1 inhibitor”[MeSH Terms]) AND “Non-Small-Cell Lung Carcinoma”[MeSH Terms] AND “Randomized Controlled Trial”[Publication Type] AND (“2020/01/01” : “2025/12/31”)[Date – Publication]
- CAR-T细胞疗法治疗血液系统肿瘤:(“CAR-T cell therapy”[Title] OR “chimeric antigen receptor T-cell therapy”[MeSH Terms]) AND (“Hematologic Neoplasms”[MeSH Terms] OR “leukemia” OR “lymphoma”) AND [Species=Homo sapiens] AND PY=(2021-2025)
- 肿瘤免疫治疗的不良反应管理:(“tumor immunotherapy”[MeSH Terms] OR “immune checkpoint inhibitor”[Title]) AND (“adverse reaction”[Abstract] OR “toxicity”[Keyword]) AND “Review”[Publication Type] AND (“2019/01/01” : “2025/12/31”)[Date – Publication]
2. 传染病学
- COVID-19疫苗的长期有效性:(“COVID-19″[MeSH Terms] OR “SARS-CoV-2″[Title]) AND (“vaccine efficacy”[Abstract] OR “long-term protection”[Keyword]) AND “Journal Article”[Publication Type] AND (“2021/01/01” : “2025/12/31”)[Date – Publication]
- 抗生素耐药性肺炎的治疗策略:(“pneumonia”[MeSH Terms] AND “antibiotic resistance”[Abstract]) OR (“drug-resistant bacteria”[Title] AND “respiratory infection”[Keyword]) AND “Clinical Trial”[Publication Type] AND [Species=Homo sapiens]
- 登革热的诊断与预防:(“dengue fever”[MeSH Terms] OR “dengue virus”[Title]) AND (“diagnostic test”[Abstract] OR “vaccine development”[Keyword]) AND “Systematic Review”[Publication Type] AND PY=(2020-2025)
3. 心血管病学
- 心力衰竭的药物治疗进展:(“heart failure”[MeSH Terms] OR “congestive heart failure”[Title]) AND (“pharmacotherapy”[Abstract] OR “drug treatment”[Keyword]) AND “Review”[Publication Type] AND (“2020/01/01” : “2025/12/31”)[Date – Publication]
- 他汀类药物对动脉粥样硬化的预防作用:(“statins”[MeSH Terms] OR “atorvastatin”[Title]) AND “Atherosclerosis”[MeSH Terms] AND “Randomized Controlled Trial”[Publication Type] AND [Species=Homo sapiens] AND PY=(2019-2025)
- 房颤的射频消融治疗效果:(“atrial fibrillation”[MeSH Terms] OR “AF”[Title]) AND (“radiofrequency ablation”[Abstract] OR “catheter ablation”[Keyword]) AND “Journal Article”[Publication Type] AND (“2021/01/01” : “2025/12/31”)[Date – Publication]
4. 神经病学
- 阿尔茨海默病的早期生物标志物:(“Alzheimer Disease”[MeSH Terms] OR “AD”[Title]) AND (“biomarker”[Abstract] OR “early diagnosis”[Keyword]) AND “Original Article”[Publication Type] AND PY=(2020-2025)
- 脑卒中后的康复治疗:(“stroke”[MeSH Terms] OR “cerebrovascular accident”[Title]) AND (“rehabilitation”[Abstract] OR “physical therapy”[Keyword]) AND “Clinical Trial”[Publication Type] AND [Species=Homo sapiens]
- 癫痫的药物与手术治疗对比:(“epilepsy”[MeSH Terms] OR “seizure”[Title]) AND ((“pharmacotherapy”[Abstract] OR “surgical treatment”[Keyword])) AND “Meta-Analysis”[Publication Type] AND (“2019/01/01” : “2025/12/31”)[Date – Publication]
5. 内分泌与代谢病学
- 2型糖尿病的GLP-1受体激动剂治疗:(“Type 2 Diabetes Mellitus”[MeSH Terms] OR “T2DM”[Title]) AND (“GLP-1 receptor agonist”[Abstract] OR “semaglutide”[Keyword]) AND “Randomized Controlled Trial”[Publication Type] AND PY=(2021-2025)
- 肥胖与代谢综合征的关联研究:(“obesity”[MeSH Terms] OR “adiposity”[Title]) AND “Metabolic Syndrome X”[MeSH Terms] AND “Epidemiologic Studies”[Publication Type] AND [Species=Homo sapiens]
- 甲状腺功能减退的诊断标准更新:(“hypothyroidism”[MeSH Terms] OR “thyroid insufficiency”[Title]) AND (“diagnostic criteria”[Abstract] OR “guideline update”[Keyword]) AND “Review”[Publication Type] AND (“2022/01/01” : “2025/12/31”)[Date – Publication]
三、不同研究场景检索式模板
1. 临床试验定位
- 特定疾病III期临床试验:”breast cancer”[MeSH Terms] AND “Phase III Clinical Trial”[Publication Type] AND [Species=Homo sapiens] AND PY=(2020-2025)
- 药物干预类临床试验:(“antihypertensive agents”[MeSH Terms] OR “blood pressure lowering drug”[Title]) AND “Clinical Trial”[Publication Type] AND “drug intervention”[Abstract] AND (“2021/01/01” : “2025/12/31”)[Date – Publication]
2. 系统评价与Meta分析
- 特定主题系统评价:”asthma”[MeSH Terms] AND (“systematic review”[Publication Type] OR “meta-analysis”[Publication Type]) AND “treatment”[Abstract] AND PY=(2019-2025)
- 跨领域综合评价:((“diabetes”[MeSH Terms] AND “cardiovascular disease”[MeSH Terms]) OR (“obesity” AND “stroke”)) AND “systematic review”[Publication Type] AND [Species=Homo sapiens]
3. 高被引文献筛选
- 领域核心高被引成果:”immunotherapy”[MeSH Terms] AND “cancer”[Title] AND “Journal Article”[Publication Type] AND (“2018/01/01” : “2023/12/31”)[Date – Publication](需联动Google Scholar按被引次数排序)
- 权威作者高影响力研究:”Johnson JS”[Author] AND “cardiology”[MeSH Terms] AND “cited by” > 100[Filter] AND PY=(2015-2025)
4. 作者与机构成果追踪
- 特定学者最新研究:”Wang L”[Author] AND “Peking Union Medical College Hospital”[Affiliation] AND “nephrology”[MeSH Terms] AND PY=(2022-2025)
- 机构重点领域成果:”Harvard Medical School”[Affiliation] AND “genetics”[MeSH Terms] OR “genomic medicine”[Title] AND “Original Article”[Publication Type] AND (“2020/01/01” : “2025/12/31”)[Date – Publication]
5. 特定期刊检索
- 顶级期刊前沿动态:”The Lancet”[Journal] OR “New England Journal of Medicine”[Journal] AND “COVID-19″[Title] AND PY=(2023-2025)
- 专科期刊主题筛选:”Circulation”[Journal] AND “heart failure”[MeSH Terms] AND “pharmacotherapy”[Abstract] AND (“2022/01/01” : “2025/12/31”)[Date – Publication]
四、使用小贴士
- MeSH词优化:检索前优先通过PubMed的“MeSH Database”查询规范主题词,例如用“Lung Neoplasms”替代“lung cancer”,避免同义异名导致的漏检。
- 筛选功能结合:检索后利用左侧栏筛选“人类研究”“免费全文”“文献类型”等条件,快速聚焦核心成果,减少无关信息干扰。
- 全文获取技巧:优先选择标注“Free Full Text”或“PMC Free Article”的文献;无直接全文时,可通过机构馆际互借或联系作者获取。
- 个性化管理:注册NCBI账号后,保存常用检索式并设置邮件提醒,实时接收领域最新文献;利用“Collections”分类管理文献,支持批量导出至EndNote等工具。
- 跨工具联动:需精准引文分析时,将文献PMID或DOI导入Web of Science、Scopus等数据库,获取更全面的被引数据和影响力评估报告。
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