The Ovid MEDLINE® database has been reloaded to implement the 2025 MeSH and new full set of data.
In addition, Ovid has made the following changes to the database:
Secondary Source
As of the application of MeSH 2025 for cataloging, NLM catalogers are now allowed to use the MeSH Check Tags Male and Female.
The annotation in the MeSH Browser "CATALOGER: Do not use" was removed from Male and Female. Catalogers will use gender terms
only if gender is the primary focus of the work and not if only mentioned in the work. Catalogers will continue to use Men or Women as defined by the scope note.
For complete details, please go to: https://www.nlm.nih.gov/pubs/techbull/nd24/nd24_2025mesh_catalog.html
Furthermore, Ovid's major mesh term searching is now identical to PubMed.
Like PubMed already did several years back, Ovid no longer makes the distinction if the focus is on the subject-heading or on the sub-heading.
For existing searches on a focused subjectheading+subheading combination, this change may lead to a higher number of results.
You can find more information about the changes to 2025 MeSH on this NLM page:
https://www.nlm.nih.gov/mesh/whatsnew.html
Complete details on new and changed fields are available in the database guide. If you have any questions, contact your Ovid Support Representative at [email protected].