The objective of this research project was to evaluate the toxicity of
local pyrrolizidine alkaloid containing plants and to examine the influence
of dietary protein, with particular reference to the amino acid cysteine,
upon this toxicity.
Senecio vulgaris (common groundsel) was shown to be more toxic than
Senecio jacobaea (tansy...
Science is difficult for even its researchers to understand. Science journalists must understand scientific discoveries well enough to write clear, accurate explanations of scientific discoveries for laypeople. A sense of ethical judgment will help journalists ensure that their accounts are reliable and appropriate. Responsible science journalists will maintain a working...
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).
Arthur Allen, who covered thimerosal for the New York Times Magazine, wrote a response beginning with the
The metabolism of pyrrolizidine alkaloids and other
drugs was studied with regard to nutritional status and
species differences. Pyrrolizidine alkaloids which are biotransformed
to severely toxic metabolites were isolated
from tansy ragwort (Senecio jacobaea). Semi-purified alkaloid
crystals containing five alkaloids (senecionine, seneciophylline,
jacobine, jacoline, and jacozine) were prepared
and found...
Oregon Biography Index is intended to serve primarily as a starting point in locating biographies of Oregonians. We have indexed 47 historical volumes which are either entirely devoted to biographies or have large self-contained biographical sections. The profiles in the books vary widely in accuracy and detail. Birth dates of...