Effect of repeated exposure to lindane and cadmium on lindane metabolism in rats

The effects of daily administration of cadmium and lindane for 35 days on the metabolism of lindane in rats were investigated. The results indicate that cadmium induces a significant inhibition of lindane metabolism, since the group dosed with lindane plus cadmium had a significantly higher concentration of lindane in plasma and tissues than the group dosed with lindane alone. The inhibition in the metabolic rate of lindane is associated with the cadmium-induced alterations in the disposition of essential trace elements, Zn, Cu and Fe, in the liver.

Amegakaryocytic thrombocytopenia of nutritional vitamin B12 deficiency

Description of a case of amegakaryocytic thrombocytopenia due to nutritional vitamin B12 deficiency. Megakaryocytes reappeared in the bone marrow after specific treatment and other haematological responses were prompt.

Dysplastic eosinophils in three patients with acute promyelocytic leukaemia

Three cases of acute promyelocytic leukaemia (M3) with dysplastic eosinophils are reported. Promyelocytes from these cases showed classical features of hypergranular acute promyelocytic leukaemia. All the cases had minimal organomegaly and disturbances of coagulation were minimal. All the cases were associated with dysplastic eosinophils in the marrow but very few of these eosinophils were found in peripheral smear. One of the three patients presented with a mass in the vertebral column, a feature not uncommonly seen in a variant form of AML-M2 with eosinophilia. Dysplastic eosinophils appear to arise from leukaemic clone itself. These three cases probably represent hitherto undescribed morphological variant of acute promyelocytic leukaemia where leukaemic cells show limited differentiation capability to dysplastic eosinophils.