Sunday, April 29, 2007

Cochrane Library Update

The Cochrane Database of Methodology Reviews (Methods Reviews) has merged into the Cochrane Database of Systematic Reviews (Cochrane Reviews) with the publication of Issue 2, 2007, of The Cochrane Library on 18th April.

Why is this being done? All Cochrane reviews will now be in a single database, paving the way for further types of reviews (diagnostic test accuracy reviews and overviews of reviews, previously known as umbrella reviews) to be introduced in the future. Other benefits of the merge are the inclusion of methodology reviews in MEDLINE (both PubMed and Ovid MEDLINE) and having them indexed by ISI/Thomson Scientific for the Science Citation Index.

PubMed: 17 Million and Growing

On April 20, 2007, the number of citations in PubMed surpassed 17 million.

Saturday, April 14, 2007

LactMed Expanded

The Drugs and Lactation Database (LactMed) has added fifty-one substances, including fourteen topical antibacterial and antifungal agents, thirteen X-ray and eight MRI contrast agents, eight acne/skin care agents, and eight other drugs. Thirty-six records have been updated.

LactMed is part of the NLM Toxicology Data Network (TOXNET®). It is a peer-reviewed and fully referenced database of drugs to which breastfeeding mothers may be exposed. LactMed includes information on the levels of such substances in breast milk and infant blood, and the possible adverse effects in the nursing infant. It provides statements of the American Academy of Pediatrics concerning a drug’s compatibility with breastfeeding and suggested therapeutic alternatives to those drugs where appropriate.

For more information:
LactMed 3/2007

Sunday, April 08, 2007

MeSH: the Web Site

You're searching MEDLINE (whatever flavor!) and you're finding little or nothing on your topic - or you're finding ten thousand...

And none of your finely honed searching shortcuts is working for you..

What are you going to do?
Go back to MEDLINE searching fundamentals. I'm talking about the Medical Subject Headings (MeSH), which are one of the building blocks for a good search. A good understanding of how they are organized, how they work, how they are applied to the medical literature not only forms the basis of those 'searching shortcuts' but it is where you should turn when your 'shortcuts' fail...back to the fundamentals.

MeSH: the Web Site is jam-packed full of information, including video tutorials. It covers the tree structures, the principles of indexing, searching tips for PubMed, the MeSH database, tips for chemical searches, and MORE!

Take a look!

For more information:
The Basics of Medical Subject Headings

Sunday, April 01, 2007

New Look for TOXNET search results page

The "Search All (TOXNET) Databases" results page has a new look. References from the National Library of Medicine's TOXLINE® (Toxicology Literature Online) and DART® (Developmental and Reproductive Toxicology) are displayed first, followed by records from the other TOXNET resources (Chemical, Toxicological, and Environmental Health data).

For each resource, the database abbreviation, full name, and number of records found are displayed; click on any one to go to its results page.

For more information:
NLM Technical Bulletin