HISTOCHEMICAL STUDIES OF SPERMATOZOA (II. REPORT)

The effects of 2-acetylaminofluorene on the embryonic development of the zebrafish. II. Histochemical studies.

Although some studies have been made on the effects of carcinogens on the embryonic develop ment of various animals (1, 5, 9, 15, 17, 18, 22), little effort has been expended in studying the mode of action of these chemical compounds. A previous paper (11) described the teratogenic ef fects of 2-acetylaminofluorene (AAF) on the de velopment of the zebrafish; the abnormalities in cluded a distor...

Histochemical studies in atherogenesis. Human cerebral arteries.

THE HISTOLOGY and histochemistry of cerebral arteries have been subject to only a few investigations. Duff, Forbus, Glynn, and Carmichaelhave stressed the importance of the integrity of the internal elastic membrane. Wolkoff studied the relationship between the elastic elements and ground substance components in cerebral arteries. He noted that lipid was occasionally seen between the reduplicat...

Histochemical studies on enzyme-digested protein plugs of patients with chronic pancreatitis: a preliminary report.

Sulfated acidic mucopolysaccharides have been found to be significant components of "protein plugs" in patients with chronic pancreatitis. The precise identification of the mucopolysaccharides and their distribution within the protein plugs may clarify the pathogenesis of the plugs. Pure pancreatic juice from five patients with chronic pancreatitis was obtained by endoscopic retrograde catheter...

An unidentified reticuloendothelial cell in bone marrow and spleen; report of two cases with histochemical studies.

Histochemical Studies on Hydrolytic Enzyme Activities

Histochemical observations were carried out on various hydrolytic enzymes in the spontaneous mammary carcinoma of C3H-strain mice. Alkaline phosphatase activity was observed in the luminal border of the tubular structure and in the periluminal surface, which showed a cystic dilatation in ducts and papillae. Capillaries in the stroma showed a high enzymatic activity. Acid phosphatase activity wa...