Alzheimer’s disease still remains as an untreatable neurological disorder with no successful treatment strategy to prevent or cure or reverse the damage. Globally, AD is 5th major cause of death. Over last three decades, accumulating evidence for Alzheimer’s suggest multiple causes, predominantly the gene make up of affected individuals are altered. Affected individuals suffer from severe loss ...

biomarkers are assigned as early warning systems regarding aquatic organisms exposed to pollutants. among which, however, measurement of esterase enzymes activity specially cholinesterase of fish tissues, is a marker for exposure to organophosphate pesticide and carbamates, and this biomarker has been used widely in broad range of investigations. a number of capoeta capoeta gracilis (:cyprinida...

BACKGROUND Pancreatic cholesterol esterase has three proposed functions in the intestine: 1) to control the bioavailability of cholesterol from dietary cholesterol esters; 2) to contribute to incorporation of cholesterol into mixed micelles; and 3) to aid in transport of free cholesterol to the enterocyte. Inhibitors of cholesterol esterase are anticipated to limit the absorption of dietary cho...

The bile salt-stimulated cholesterol esterase is a digestive enzyme synthesized by the acinar cells of the pancreas. Previous results have shown that cholesterol esterase biosynthesis and secretion in the AR42J pancreatoma cells could be increased 3-5-fold by intestinal hormones such as cholecystokinin (CCK). The purpose of the current study is to explore the signalling mechanism by which CCK s...

Enzyme inhibitors have long been used in the analysis of cellular function for separating different steps in complex chemical reactions and for studying the effect of blocking these reactions in the intact cell. Inhibitors of choline ester-splitting enzymes, especially the alkaloids prostigmine and eserine, have attracted the interest of investigators in view of the physiological rale of acetyl...

Enzyme inhibitors have long been used in the analysis of cellular function for separating different steps in complex chemical reactions and for studying the effect of blocking these reactions in the intact cell. Inhibitors of choline ester-splitting enzymes, especially the alkaloids prostigmine and eserine, have attracted the interest of investigators in view of the physiological rale of acetyl...

Hereditary angioedema (HAE) is a rare autosomal dominant disorder caused by reduced activity of the C1 esterase inhibitor. Clinically, angioedema most often involves the upper extremities, face, neck and larynx. The most common cause of death is asphyxia related to laryngeal oedema. Attacks are triggered by many factors such as trauma, stress, infections and hormonal fluctuations. C1 esterase i...

Monocyte nonspecific esterase has been purified from cultured cells of the acute myeloid leukemia cell line. ML-l. The purified enzyme shows the characteristic properties of the monocyte neutral serine carboxyI esterase, with high sensitivity to organophosphorus inhibitors and sodium fluoride inhibitor. The enzyme is a membrane protein which in the native state exists as a monomer of a mol wt o...

Strains of German cockroach, Blattella germanica (L.) were tested for resistance to three insecticides using the time-mortality response technique in comparison with known susceptible strains. Dursban-R and Macy strains indicated high levels of resistance to chlorpyrifos and moderate resistance to propoxur and cypermethrin. The hydrolytic activity of esterase enzymes was determined with a model...

Normal human serum contains 18 +/-5 mg/100 ml of C1 esterase inhibitor (alpha-2 neuraminoglycoprotein) as estimated by immunochemical means. Of 118 patients with hereditary angioneurotic edema, the sera of 80, from 42 kindred, contained a mean concentration of 3.15 mg/100 ml or 17.5% of normal. The mean serum concentration in 35 patients in 7 other kindred was 20 mg/100 ml or 111% of normal, an...