这个词是什么意思？
A pyrrolizidine alkaloid and a toxic plant constituent that poisons livestock and humans through the ingestion of contaminated grains and other foods. The alkaloid causes pulmonary artery hypertension, right ventricular hypertrophy, and pathological changes in the pulmonary vasculature. Significant attenuation of the cardiopulmonary changes are noted after oral magnesium treatment.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D016686 · MeSH 2026。
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