objective: this study was to evaluate the effect of vitamin c on the histology and histochemistry of the prefrontal cortex of ethanol-induced rats. methods: male sprague-dawley rats were used for the study. ethical approval was obtained from the university’s ethical committee. the rats were randomly divided into 6 groups of 10 rats each. rats in group a= free access to normal saline. rats in gr...

T H E aim of histoand cytochemical studies is to identify and eventually to quantitate substances on a microscopic level. This necessitates isolating extremely small areas for analysis, preferably in the intact biological tissue. Physical methods have proven to be of value in this respect, in particular the radiant energy micro-absorption techniques (Fitzgerald & Engstrom, 1952). The field of h...

The presence of acetylcholinesterase in the tumour cells of neuroblastoma has been shown by enzyme histochemistry. For comparison, some other tumours likely to be found in children and commonly presenting histologically as small cell tumours have also been studied. Acetylcholinesterase activity was seen in rhabdomyosarcoma, but, compared with neuroblastoma, the activity was focal and sparse. On...