Harvard Catalyst Profiles

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"Protoporphyrins" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure, which enables searching at various levels of specificity.

Porphyrins with four methyl, two vinyl, and two propionic acid side chains attached to the pyrrole rings. Protoporphyrin IX occurs in hemoglobin, myoglobin, and most of the cytochromes.

This graph shows the total number of publications written about "Protoporphyrins" by people in Harvard Catalyst Profiles by year, and whether "Protoporphyrins" was a major or minor topic of these publication.
Bar chart showing 127 publications over 27 distinct years, with a maximum of 12 publications in 2011
To see the data from this visualization as text, click here.
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Funded by the NIH National Center for Advancing Translational Sciences through its Clinical and Translational Science Awards Program, grant number UL1TR002541.