Results 221 to 230 of about 51,436 (262)

Activation of acetylcholinesterase by vanadate

Neuropharmacology, 1985
Vanadate activated acetylcholinesterase in rat ventricular strips. This effect of probably due to the action of vanadate (V) form rather than to vanadyl (IV). Vanadate also activated purified acetylcholinesterase from the electric eel and also erythrocytes, suggesting a direct effect upon this enzyme system.
R E, Catalán, A M, Martínez, M D, Aragonés, J E, Godoy   +3 more
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Acetylcholinesterase in the Rabbit Cornea

Archives of Ophthalmology, 1965
There is strong evidence that the acetylcholine system is responsible for the electric currents which propagate impulses in conducting tissues.1,2In the eye, high concentrations of acetylcholine have been reported in the corneal epithelium;3cholinesterase has been demonstrated in various other ocular tissues chemically4and histochemically;5,6and high ...
R A, PETERSEN, K J, LEE, A, DONN
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Plasma acetylcholinesterase activity

American Journal of Obstetrics and Gynecology, 1950
Abstract ChE activity in plasma from normal adult nonmenstruating, nonpregnant women, from women during normal pregnancy, and from patients with toxemia of pregnancy was determined manometrically. Significant differences were observed among the three groups. This difference was independent of medication (Sodium Amytal), and could not be attributed to
W W, TOURTELLOTTE, L D, ODELL
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The thermal inactivation of acetylcholinesterase

Biochimica et Biophysica Acta, 1963
Abstract Thermal inactivation of acetylcholinesterase (Acetylcholine acetyl-hydrolase, EC, 3.1.1.7) from mammalian erythrocytes is accompanied by a decrease in the Michaelis constant K8, while the substrate inhibition constant K32 remains unchanged. The time course involves two first-order processes, suggesting (a) the presence of two enzymes, or (b)
M H, COLEMAN, D D, ELEY
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Acetylcholinesterase

Progress in clinical and biological research, 1976
S H, Sandifer, J E, Kiel, B C, Strever
openaire   +4 more sources

Acetylcholinesterase

1987
International ...
Toutant, J.P., Massoulie, J.
openaire   +1 more source

Acetylcholinesterase in Alzheimer's disease

Mechanisms of Ageing and Development, 2001
Since the discovery of the cholinergic deficit in Alzheimer disease (AD), acetylcholinesterase (AChE) has been widely investigated in tissues involved in the disease. These studies showed modifications in AChE activity and changes in its polymorphism in brain as well as in cerebro-spinal fluid (CSF) and blood.
openaire   +3 more sources

Acetylcholinesterases

Life Sciences, 1978
A J, Trevor, M A, Gordon, K K, Parker, S L, Chan   +3 more
openaire   +2 more sources

Acetylcholinesterase in aplysia

Biochimica et Biophysica Acta, 1962
W D, KETTBARN, P, ROSENBERG
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ACETYLCHOLINESTERASE IN BULL SPERMATOZOA

Reproduction, 1964
Summary. Acetylcholinesterase occurs in the head, midpiece and tail fractions of sonically disrupted bull epididymal spermatozoa. The enzyme exhibits the characteristic substrate concentration optimum; 1·5 × 10-5 m-eserine competitively inhibits the hydrolysis of the acetylcholine.
openaire   +2 more sources