Dr. J. Dufer, J. Bernard, Laboratoire d’Hématologie, Institut Jean-Godinot, BP171, F-51056 Reims Cedex (France) Recently, Chilosi et al. [2] reported heterogeneous expression of the enzyme dipeptidyl-aminopepti-dase IV (DAP IV; EC 3.4.14.4.) in T-cell chronic lym-phocytic leukemia. The authors reached the conclusions that cytochemical demonstration of DAP IV correlates with the expression of th...

background: currently, non-invasive methods for screening atrophic gastritis and gastric cancer are lacking. the purpose of this study was to evaluate the value of serological parameters including serum pepsinogen i (pgi), pepsinogen ii (pgii) and pepsinogen i: ii ratio for the screening atrophic gastritis and gastric cancer.   methods : the study population consisted of 132 dyspeptic patients ...

Dawson, C. R. (The Middlesex Hospital Medical School, London, England), M. A. Epstein, and K. Hummeler. Cytochemical and electron microscopical observations on the presence and origin of adenosine triphosphatase-like activity at the surface of two myxoviruses. J. Bacteriol. 89:1526-1532. 1965.-HeLa cells infected with either fowl plague virus (FPV) or Newcastle disease virus (NDV) were examined...

The classification of the acute leukemias depends mainly on the morphologic and cytochemical evaluation of the blast forms. One of the main accepted morphologic criteria in the differentiation between acute lymphoblastic leukemia (ALL) and acute myeloblastic leukemia (AML) is the absence of granules in the blast cells of ALL. We evaluated a patient with ALL in whom granules were present in the ...

The aim of this paper is to establish whether there are cytochemical or ultrastructural alterations in the hepatocytes of patients with primary biliary cirrhosis (PBC) at stages I and II compared with the biopsies from individuals with normal liver. Cytochemical technique with ATP as substrate, transmission electron microscopy (TEM) and freeze fracture were used for the studies. In the normal l...

Cytochemical methods have been used to examine the vascular endothelium. With hemeproteins and immunocytochemistry, investigators have demonstrated the pathways that blood-borne molecules can take to gain access to the extravascular space (Ghitescu et al. 1986; Milici et al. 1987; Schneeberger and Karnovsky 1971; Simionescu et al. 1975). These same cytochemical methods have also provided eviden...

Age related cytochemical changes of thymic endocrine cells were studied in 78 day old chicks at five day interval to age of day 60 employing a panel of cytochemical stains. Methenamine silver revealed cell morphology including cell processes distinctly while diamine silver revealed a stronger argentaffinity in these cells. The cells had greater affinity for diamine silver compared to methenamin...

Recently discovered 'Eph' family receptors and their ligands appear likely to provide the 'cytochemical tags' that Sperry speculated enable axons projecting from the retina to find their correct targets in the brain.