International Journal of Tryptophan Research

International Journal of Tryptophan Research is an online-only, peer-reviewed journal published by SAGE that covers all aspects of tryptophan research, from isolation and synthesis to diet, neurological disease and immune response, founded in 2008 and holding a 2025 Journal Impact Factor of 4.9.《国际色氨酸研究杂志》（International Journal of Tryptophan Research）由（SAGE）出版，为纯在线同行评审期刊，覆盖色氨酸研究的各个方面，从分离与合成到饮食、神经系统疾病与免疫反应，2008 年创刊，2025 年期刊影响因子为 4.9。

Scope

• The journal covers isolation, functionality and interactions of tryptophan across experimental and clinical settings.刊物覆盖色氨酸的分离、功能与相互作用，兼及实验与临床场景。
• Analytical approaches, synthesis and industrial production are explicit topics.分析方法、合成与工业生产均为明确主题。
• Supplementation and the place of tryptophan in the diet are treated alongside physiology.补充剂以及色氨酸在饮食中的地位，与生理学研究并列。
• Neurological and psychiatric disorders form a major clinical strand.神经与精神疾病构成主要的临床方向。
• Immune response to tryptophan and its metabolites is another standing interest.机体对色氨酸及其代谢物的免疫反应是另一常设议题。
• Related precursors and metabolites are covered, including serotonin, melatonin, niacin, tryptamine, kynurenine and indoleamine 2,3-dioxygenase.相关前体与代谢物亦在范围内，包括血清素、褪黑素、烟酸、色胺、犬尿氨酸与吲哚胺双加氧酶。

History

• The journal was launched in 2008 by Libertas Academica, with an introductory editorial by Gilles J. Guillemin of the University of New South Wales in April that year.该刊由（Libertas Academica）于 2008 年创办，同年 4 月由（University of New South Wales）的（Gilles J. Guillemin）撰写创刊社论。^[1]
• It was created because no journal was dedicated to tryptophan, and it published exclusively online with all articles free to read.创刊缘由是当时没有专属于色氨酸研究的期刊，刊物仅在线出版，所有文章免费阅读。
• SAGE took over as publisher on 12 October 2016, keeping the Libertas platform while adding its own branding.（SAGE）于 2016 年 10 月 12 日接手出版，继续使用（Libertas）平台并加上自身品牌。
• The journal was fully open access until 1 September 2024, when it converted to a hybrid model with open access available through Sage Choice.该刊原为完全开放获取，2024 年 9 月 1 日起转为混合模式，开放获取可通过（Sage Choice）实现。
• One volume appears each year, volume 18 covering 2025, and articles carry article numbers rather than print pages.每年出版 1 卷，2025 年为第 18 卷，文章以文章编号代替纸本页码。
• The 2025 Journal Impact Factor is 4.9, after 4.1 in 2024, and the journal sits in ESCI neuroscience at Q1, rank 70 of 330.2025 年期刊影响因子为 4.9，2024 年为 4.1，在（ESCI）神经科学类别位列（Q1），排名 70/330。

Editors

• Benjamin Heng, PhD, FHEA, of Macquarie Medical School at Macquarie University in Australia, is Editor-in-Chief.主编为（Benjamin Heng），博士，并为（FHEA）会士，任职于澳大利亚（Macquarie University）的（Macquarie Medical School）。
• Stefano Comai, PhD, of the University of Padova in Italy, serves as Deputy Editor.副主编为意大利（University of Padova）的（Stefano Comai），博士。
• The nine-member board includes Abdulla Badawy in Wales, Bruce Brew in Australia, Hidetsugu Fujigaki in Japan and Ahmed Sadik in Germany.九人编委会包括威尔士的（Abdulla Badawy）、澳大利亚的（Bruce Brew）、日本的（Hidetsugu Fujigaki）与德国的（Ahmed Sadik）。
• Review is single anonymized, preprints are accepted and the journal follows COPE guidance.评审采用单盲模式，接受预印本，刊物遵循（COPE）指南。
• Median time to first decision is 10 days, review takes 60 days and submission to acceptance 206 days, with an acceptance rate of 76.2 percent.首次决定的中位时间为 10 天，评审 60 天，从投稿到录用 206 天，录用率为 76.2%。
• Article types include original research, reviews, commentaries, editorials, letters, methodologies, perspectives, short reports and technical advances.文章类型包括原创研究、综述、评论、社论、读者来信、方法学、观点、短报告与技术进展。