Boudreau-Larivière, Céline, David J. Parry, and Bernard J. Jasmin. Myotubes originating from single fast and slow satellite cells display similar patterns of AChE expression. Am. J. Physiol. Regulatory Integrative Comp. Physiol. 278: R140–R148, 2000.—Slowand fast-contracting skeletal muscles of both rats and mice display significant differences in their patterns of acetylcholinesterase (AChE) e...

In order to characterize the toxic response of zebra fish (Danio rerio) to Deltamethrin (DM), behavior strength (BS) and muscle AChE activity of zebra fish were investigated. The results showed that the average values of both BS and AChE activity showed a similarly decreased tendency as DM concentration increased, which confirmed the dose-effect relationship, and high and low levels of AChE and...

The membrane-bound form of acetylcholinesterase (AChE) constitutes the major component of this enzyme in the mammalian brain. These molecules are hetero-oligomers, composed of four AChE catalytic subunits of type T (AChE(T)), associated with a transmembrane protein of type 1, called PRiMA (proline-rich membrane anchor). PRiMA consists of a signal peptide, an extracellular domain that contains a...

In this paper we prove that all Smarandache concatenated k-power decimals are irrational numbers. For any positive integer k, we define the Smarandache concatenated k-power decimal a k as follows: a l = 0.1234567891011..., a2 = 0.149162536496481100121... (1) a 3 = 0.18276412521634351272910001331..., ... , etc. In this peper we discuss the irrationally of ak' We prove the following result Theore...

We analyzed the effects of UV radiation (UVR) effects on acetylcholinesterase (AChE) activity in two calanoid copepods, Boeckella gibbosa and Parabroteas sarsi that inhabit Patagonian shallow lakes. We studied the effect of experimental UVR (UV-B and UV-A) exposure on AChE activity in relation to basal antioxidant capacities of both copepods. Our experiments showed that UVR can effectively depr...

Fucoxanthin, a natural carotenoid abundant in edible brown seaweeds, has been shown to possess anti-cancer, anti-oxidant, anti-obesity and anti-diabetic effects. In this study, we report for the first time that fucoxanthin effectively protects against scopolamine-induced cognitive impairments in mice. In addition, fucoxanthin significantly reversed the scopolamine-induced increase of acetylchol...

An inhibitive assay of insecticides using Acetylcholinesterase (AChE) from the local fish Clarias batrachus is reported. AChE was assayed according to the modified method of Ellman. Screening of insecticide and heavy metals showed that carbofuran and carbaryl strongly inhibited C. batrachus AChE. The inhibition concentration (IC) IC50 values (and the 95% confidence interval) for both carbofuran...

objective: chlorpyrifos (cpf) is a neurotoxic organophosphorus (op) insecticide. its mechanism of action includes oxidative stress, excitotoxicity, and inhibition of the acetylcholinesterase enzyme (ache). the aim of the present study is to investigate cpf toxicity in mature and immature cerebellar granule neurons (cgns), as well as its effect on glutamate induced excitotoxicity. materials and ...

background: organophosphorus (op) compounds are used to control pests, however they can reach the food chain and enter the human body causing serious health problems by means of acetylcholinesterase (ache) inhibition and oxidative stress (os). among the ops, chlorpyrifos (chp), malathion (mal), and diazinon (dia) are commonly used for commercial extermination purposes, in addition to veterinary...