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IX International Symposium of the Society of Toxicologic Pathologists

The posters presented at the IX International Symposium ofthe Society ofToxicologic Pathologists, Toxicologic Pathology ofthe Cardiovascular System, illustrated the wide variety of research activities in which toxicologic pathologists are involved. Those posters specifically covering the cardiovascular system indicated how frequently toxic effects are expressed in this system. Additionally, the poster sessions permitted Symposium participants to review a variety ofexperimental and naturally occurring toxicoses as well as spontaneous lesions encountered in the practice of toxicologic pathology. That toxicologic pathologists are using tools other than standard morphology was demonstrated in the posters reporting the use of immunocytochemistry to elucidate pathogenetic mechanisms and classify tumors. The trend toward mechanistic approaches to investigation of toxicity was evident in several other posters, including those submitted for the Student Investigator Award competition. The winner of this year's Student Investigator Award was John D. Swann for his presentation entitled, "Role of Extracellular Calcium in Oxidative Stress," for which he received renumeration and an engraved plaque. A paper emanating from his presentation will be published at the Society's expense, following peer review, in a future issue. Several posters, summarizing the effectsofdiet modification on toxicologicexpression, emphasized the necessity for considering environmental factors when interpreting toxicologic data. The Program Committee, Society members, and Symposium attendees would like to thank those investigators who submitted and presented posters. The diversity and high quality of research activity reflected in the posters presented at the Symposium were indicative ofthe broad scientific interests and research sophistication encompassed in the field of toxicologic pathology. The abstracts from the Poster session follow. Papers by the invited platform speakers are published in Part 1 of this issue (18-4).