Hepatotoxic and nephrotoxic principles in Terminalia oblongata. 1991

L J Filippich, and J Zhu, and P Oelrichs, and M T Alsalami, and A J Doig, and G R Cao, and P B English
Department of Companion Animal Medicine and Surgery, University of Queensland, Australia.

A study was conducted to identify and characterise the toxic principle in Terminalia oblongata, commonly known as yellow-wood. Crude aqueous extracts of yellow-wood leaf were found to produce the same liver lesion in mice as has been reported in ruminants. The hepatotoxic fraction was isolated and identified as a hydrolysable vegetable tannin called punicalagin. When given orally, the dose required to produce toxicity was at least 20 times greater than when given intraperitoneally. Following a given dose of punicalagin, the onset and severity of liver necrosis was found to be related to the time interval after dosing. In addition to punicalagin, an unidentified nephrotoxic substance was found which was capable of producing avascular renal necrosis without liver necrosis.

UI MeSH Term Description Entries
D007274 Injections, Intraperitoneal Forceful administration into the peritoneal cavity of liquid medication, nutrient, or other fluid through a hollow needle piercing the abdominal wall. Intraperitoneal Injections,Injection, Intraperitoneal,Intraperitoneal Injection
D007674 Kidney Diseases Pathological processes of the KIDNEY or its component tissues. Disease, Kidney,Diseases, Kidney,Kidney Disease
D008107 Liver Diseases Pathological processes of the LIVER. Liver Dysfunction,Disease, Liver,Diseases, Liver,Dysfunction, Liver,Dysfunctions, Liver,Liver Disease,Liver Dysfunctions
D008297 Male Males
D008854 Microscopy, Electron Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen. Electron Microscopy
D009336 Necrosis The death of cells in an organ or tissue due to disease, injury or failure of the blood supply.
D010947 Plants, Toxic Plants or plant parts which are harmful to man or other animals. Plants, Poisonous,Plant, Poisonous,Plant, Toxic,Poisonous Plant,Poisonous Plants,Toxic Plant,Toxic Plants
D000284 Administration, Oral The giving of drugs, chemicals, or other substances by mouth. Drug Administration, Oral,Administration, Oral Drug,Oral Administration,Oral Drug Administration,Administrations, Oral,Administrations, Oral Drug,Drug Administrations, Oral,Oral Administrations,Oral Drug Administrations
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D013634 Tannins Polyphenolic compounds with molecular weights of around 500-3000 daltons and containing enough hydroxyl groups (1-2 per 100 MW) for effective cross linking of other compounds (ASTRINGENTS). The two main types are HYDROLYZABLE TANNINS and CONDENSED TANNINS. Historically, the term has applied to many compounds and plant extracts able to render skin COLLAGEN impervious to degradation. The word tannin derives from the Celtic word for OAK TREE which was used for leather processing. Tannin

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