نتایج جستجو برای: ellman method

تعداد نتایج: 1630219  

Journal: :Advanced pharmaceutical bulletin 2014
Wan Mohd Nuzul Hakimi Wan Salleh Nur Athirah Hashim Farediah Ahmad Khong Heng Yen

PURPOSE The aim of this study was to investigate acetylcholinesterase (AChE), butyrylcholinesterase (BChE) and antityrosinase activities of extracts from ten Piper species namely; P. caninum, P. lanatum, P. abbreviatum, P. aborescens, P. porphyrophyllum, P. erecticaule, P. ribesioides, P. miniatum, P. stylosum, and P. majusculum. METHODS Anticholinesterase and antityrosinase activities were e...

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2008
Ilkay Orhan Fatma Tosun Bilge Sener

Acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) are the key enzymes in pathogenesis of Alzheimer's disease (AD), which is characterized by a deficit in central cholinergic transmission. In the current study, AChE and BChE inhibitory activities of seven coumarin derivatives [umbelliferone (1), 4-methylumbelliferone (2), 4-hydroxycoumarin (3), scopoletin (4), 8-methoxypsoralen (5), b...

Journal: :Acta chirurgica Iugoslavica 2006
Pravin J Gupta

BACKGROUND Radiofrequency surgery is a method of utilizing high frequency (3.8 to 4MHz) radio wave energy to incise, excise, or coagulate tissues. Radiofrequency (RF) is a relatively new modality that is being used for ano-rectal surgeries with increasing frequency. As the RF energy is applied, frictional heating of tissues results, with cell death occurring at temperatures between 60 and 100 d...

Journal: :British journal of industrial medicine 1988
R T Gun C Grycorcewicz A J Esterman J B Edwards

The introduction of ultralow volume (ULV) application of the organophosphate pesticide Fenitrothion in grain terminals presents a risk to workers of skin contact with concentrate. Blood testing, by the Ellman method, of a group of five grain terminal workers working on grain treatment showed a lowering of mean red blood cell cholinesterase (RBC ChE) activity to 23 units/gm Hb (normal value 28-4...

2013
LJ Popovic S Alavuk T Kovacevic

Methods Our study included six patients with acquired infection from central catheter; the microbial pathogens were Streptococcus viridans (n = 3) and Staphyloccocus aureus (n = 3). The diagnosis of IE was based on positive blood culture (2 positive cultures of blood samples drawn > 12 hours), evidence of endocardial involvement (positive ECHO), measuring raised erythrocyte sedimentation rate a...

Journal: :Journal of environmental biology 2009
L G Tham N Perumal M A Syed N A Shamaan M Y Shukor

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...

Journal: :Annals of the rheumatic diseases 1952
P ELLMAN L CUDKOWICZ

The association of "rheumatoid disease" (Ellman and Ball, 1948) and Addison's disease is exceedingly rare. Kendall (1951) believed that their co-existence was no more than a coincidence. Perera and Ragan (1950) and, more recently, Caughey and McCoy (1951) reported single cases of a combination of the two diseases. The last mentioned refer to the French literature (Dejean, 1947; de Gennes and ot...

Journal: :Medicinal Chemistry Research 2021

Novel acrylamide and methacryloyl carrying piperazine-dihydrofuran derivatives (3a-p) were designed obtained from radical cyclizations of unsaturated piperazine (1a-f) with 1,3-dicarbonyl compounds (2a-c) mediated by Mn(OAc)3. Obtained characterized spectroscopic methods. In vitro AChE inhibitory activites 3a-p evaluated against (Acetylcholinesterase) Ellman method test results showed that 3a, ...

Journal: :Journal of the Turkish Chemical Society, Section A: Chemistry 2021

Alzheimer’s disease (AD) is an irreversible and progressive neurodegenerative disorder, characterized by β-amyloid plaques, neurofibrillary tangles loss of cholinergic neurons. Butyrylcholinesterase (BChE) inhibition one the most critical strategy for treatment AD since BChE causes inactivation neurotransmitter acetylcholine has positive effects on promoting formation fibrils. Our previous stud...

Journal: :Law and human behavior 2012
Ira Mark Ellman Sanford L Braver Robert J MacCoun

Citizens awaiting jury service were asked a series of items, in Likert format, to determine their endorsement of various statements about principles to use in setting child support amounts. These twenty items were derived from extant child support systems, from past literature and from Ellman and Ellman's (2008) Theory of Child Support. The twenty items were found to coalesce into four factors ...

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