N EW IMPROVED histochemical technics for detecting glycogen in tissues justify reinvestigation of the distribution of glycogen in human blood cells. Histochemical methods permit more precise observations on the localization of glycogen within single cells of different types than are obtained by macrochemical analyses. Most investigators have claimed that glycogen is present in only certain type...

Some histochemical observations on the pituitaries of three marine and three freshwater teleost fish have been made. It has been shown that cells of this gland, which are stained identically in different species by Azan, do not always give identical histochemical reactions, and that in the same species cells which after histological staining have similar tinctorial affinities may be differentia...

Three hundred and seventy-two rectal mucosal biopsies, taken from 150 children and young adults with chronic constipation, were subjected to histochemical and biochemical analysis of acetylcholinesterase to exclude Hirschsprung's disease. The relative merits of the procedures were compared. The histochemical method was considered to be the most practical for laboratories handling small numbers ...

Three hundred and seventy-two rectal mucosal biopsies, taken from 150 children and young adults with chronic constipation, were subjected to histochemical and biochemical analysis of acetylcholinesterase to excude Hirschsprung's disease. The relative merits of the procedures were compared. The histochemical method was considered to be the most practical for laboratories handling small numbers o...

Histochemical methods for the localization of protein-bound sulphydryl groups were compared in a critical fashion. As far as localization is concerned, several of the methods published were found to be satisfactory. However, from the point of view of approximate visual quantitation, the results are confusing. The two best methods for the histochemical detection of protein-bound sulphydryl group...

Mancozeb is an ethylene-bis-dithiocarbamate (EBDC) fungicide. It is used in a wide range to control several of fungal diseases in field crops and fruits. Administration of mancozeb at a dose level of 1/10 LD50 3 times / week for six weeks induced marked histological and histochemical changes in thyroid gland of albino rat. The histological changes included dilation and congestion in blood vesse...

Quantitative and histochemical nitroblue with polycythemia vera and neoplasia astetrazolium reduction (NBT) tests were persociated with fever, as well as in those with formed on leukocytes of 13 patients with known bacterial infection. It is suggested polycythemia vera, seven with chronic that patients with neoplasia or polycygranulocytic leukemia, eight with neothemia vera may show a false pos...

The morphological and histochemical changes in muscle biopsies from 6 cases with myasthenia gravis (MG) were studied, The patients were misdiagnosed at the initial presentation, however they were all proved later by either histochmical and serological tests or improvement on mestinone therapy to have MG. Here, the histomorphological and histochemical changes that were seen in muscle biopsies of...

The lipides of the diverticula of Asterias forbesi have been studied by histochemical and biochemical means. Correlations between results obtained by histochemical examination of sections, and chemical analysis of isolated lipide have been made, particularly with respect to phosphatides, steroids, and aldehyde lipides. The results of the histochemical study were in good agreement with the chemi...

Different light microscopical procedures for the histochemical demonstration of catalase were tested in cryostat sections of mussel digestive gland tissue by using both benzidine and diaminobenzidine (DAB) as hydrogen donors. The selected procedure, which was also applied to mouse liver for comparative purposes, consisted of incubation in media containing 0.2% DAB and 0.3% H2O2 at pH 10.4 for 3...