Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.


The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation

Search Page


My NCBI Filters

Results by year

Table representation of search results timeline featuring number of search results per year.

Year Number of Results
2021 1
2022 5
2023 2

Text availability

Article attribute

Article type

Publication date

Search Results

7 results

Results by year

Filters applied: . Clear all
Page 1
The tryptophan catabolite or kynurenine pathway in major depressive and bipolar disorder: A systematic review and meta-analysis.
Almulla AF, Thipakorn Y, Vasupanrajit A, Abo Algon AA, Tunvirachaisakul C, Hashim Aljanabi AA, Oxenkrug G, Al-Hakeim HK, Maes M. Almulla AF, et al. Among authors: thipakorn y. Brain Behav Immun Health. 2022 Oct 21;26:100537. doi: 10.1016/j.bbih.2022.100537. eCollection 2022 Dec. Brain Behav Immun Health. 2022. PMID: 36339964 Free PMC article. Review.