human peripheral blood monocytes have been found to undergo a transitory state of high accessory activity before they fully become macrophages. time kinetics were done to follow this accessory potential. studying the regulation of accessory activity, we have found that monocyte derived accessory cells (m-ac) pass through two phases of development, both of which are adversely controlled by cycli...

Prof. Dr. D. Huhn, Medizinische Klinik III, Klinikum Grosshadern, Universität München, Marchioninistr.15, D-8000 München 70 (FRG) In this journal, Veerman et al. [6] claimed that the vast majority of T-ALL cells proved to be ANAE negative (30/31) and acid phosphatase positive (29/31). As ANAE positivity in ALL largely depends on the fixation used [1,5] this point will be emphasized in the follo...

Cholesterol esterase of pancreatic juice origin and acyl coenzyme A:cholesterol acyltransferase, both associated with the intestinal mucosa, are implicated in the extensive esterification of exogenous cholesterol during absorption. To assess the role of each enzyme, [4-14C]cholesterol absorption into mesenteric lymph of rats with normal mucosal levels of both esterification enzymes was compared...

Previous published work has led to the hypothesis that the activatable esterase of chemotaxis is a serine esterase of the rabbit polymorphonuclear leukocyte existing in an inert, phosphonate insusceptible form, which after activation is capable of hydrolyzing aromatic amino acid esters and being inhibited by phosphonates. In the present study, directed to the testing of this hypothesis, we have...

The esterase profiles of 9 strains of Mortierella ramanniana grown on glucose and olive-oil media were determined by starch-gel electrophoresis. The enzymes produced on the oil medium were in most instances produced also on the glucose medium, but on the latter some additional esterase components were produced. The esterase patterns of the different strains varied widely; only one esterase was ...

A mathematical model has been proposed to study the effect of [TAME] esterase on blood clotting time. Using this model, clotting time was found to decrease by 30% with increasing plasma [TAME] esterase activity in a group of smokers. It is hypothesized that [TAME] esterase through its effect on Hageman factor could affect clotting time. However mechanism of clotting by [TAME] esterase remains t...

tetranychus urticae koch is an important and destructive pest of crops, fruits and ornamental plants in worldwide. the high fecundity of t. urticae and its abruptly life span as well as the extensive application of acaricides for keeping t. urticae damages below economic injury level, caused to resistance to acaricides and control failures. in this research the fumigant activity of essential oi...

background: nonspecific symptoms are common in all areas of medicine. patients and caregivers can be frustrated when an illness cannot be reduced to a discrete pathophysiological process that corresponds with the symptoms. we therefore asked the following questions: 1) which demographic factors and psychological comorbidities are associated with change from an initial diagnosis of nonspecific a...

Naphthyl esterase and platelet-activating factor (PAF)-acetylhydrolase activities were detected in the salivary glands of the cat flea, Ctenocephalides felis. Salivary naphthyl esterase activity is disgorged during exploratory probing. Whole extracts of salivary glands contain esterase activity against the short-chain naphthyl esters alpha-naphthyl acetate (approximately 210pmol/min/gland pair;...