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- Volume 26, Issue 24, 1952
South African Medical Journal - Volume 26, Issue 24, June 1952
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Volume 15 ([1941, 1917])
Volume 26, Issue 24, June 1952
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The Senecio alkaloids
Author Norman SapeikaSource: South African Medical Journal 26, pp 485 –488 (1952)More LessSenecio plants (Sprinkaanbos; ragwort) are of great interest and importance. They contain alkaloids of which many have been identified chemically but only a few have been investigated experimentally. Senecio poisoning has long been known to be a cause of chronic illness and death in cattle and horses, e.g. Molteno disease, dunsiekte, and in man cases of 'bread poisoning' (from meal contaminated with the weed) occurred in, previous years in the Mossel Bay, George, Riversdale and Clanwilliam districts until preventive measures were taken. The features of poisoning were chiefly epigastric discomfort, abdominal pain, nausea, vomiting, diarrhoea, with blood in the stools, emaciation, ascites, and enlarged liver; death occurred in 14 days to 2 years or longer after the onset of the disease. Many of the alkaloids have been shown to produce liver necrosis in various laboratory animals. Recently, by intermittent feeding of a Senecio plant extract for several months, nodular hyperplasia of liver cells or tumour-like masses showing the character of hepatomas and excessive proliferation of bile duct epithelium have been produced. It has, therefore, been suggested that the high incidence of primary liver carcinoma in the malnourished Bantu may bedue to the indiscriminate use of Senecio plants for various ailments from childhood and throughout life. The alkaloids also have other actions. The subject is fully reviewed in the present article.
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Dermatosis from cosmetics
Author Georges GarnierSource: South African Medical Journal 26, pp 490 –492 (1952)More LessThe role of cosmetics as causes of dermatoses and the methods of investigating such cases are discussed. Attention is drawn to the danger of producing a secondary dermatitis medicamentosa by improper treatment.
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Porphyria
Author P.W.J. KeetSource: South African Medical Journal 26, pp 493 –498 (1952)More LessThe subject of porphyria is discussed in its general aspects and acute porphyria in more detail. A case of acute porphyria is reported which seems to fall under the rarer category of type III in the classification. Reference is made to the not infrequent decision to regard the abdominal signs as indication for laparotomy. Waldenstrom mentions 29 cases in which laparotomy was performed.