نتایج جستجو برای: na edta

تعداد نتایج: 277982  

Journal: :The journal of contemporary dental practice 2013
Fabio Renato Manzolli Leite Gustavo Giacomelli Nascimento Elza Regina Manzolli Leite Amauri Antiquera Leite Josá Eduardo Cezar Sampaio

OBJECTIVE This study aims to compare the clot stabilization on root surfaces conditioned with citric acid and ethylenediamine-tetraacetic acid (EDTA). MATERIALS AND METHODS Scaled root samples (n = 100) were set in fve groups: group I-control group (saline solution); group II (24% EDTA); group III (25% citric acid); group IV (EDTA + citric acid); group V (citric acid + EDTA). Fifty samples we...

Journal: :The Biochemical journal 1996
C D Bhanumathy A S Balasubramanian

Purified human serum butyrylcholinesterase after treatment with either of the metal chelators EDTA or NaCN was able to bind to a Zn(2+)-chelate-Sepharose affinity column and was eluted from the column by EDTA or imidazole. Prior EDTA treatment of the enzyme was essential for binding to this affinity column. The enzyme could be labelled with (65)Zn(2+) after EDTA treatment of the enzyme. Diethyl...

Journal: :The Journal of investigative dermatology 1958
J G RUKAVINA M ORKIN F W LYNCH

The cause or causes of hypercalcemia and hypercalcuria in sarcoidosis are obscure. Harrell and Fisher (1) were the first to emphasize that hypercalcemia, hyperproteinemia and elevated serum alkaline phosphatase could occur in this disease. Dent etat (2) believed that bone destruction represented the cause of hypercalcemia. Anderson et at (3) concluded from their studies that increased calcium a...

Journal: :BMC Nephrology 2006
Chiara Foglieni Alessandro Fulgenzi Paolo Ticozzi Fabio Pellegatta Clara Sciorati Daniela Belloni Elisabetta Ferrero Maria Elena Ferrero

BACKGROUND Chelation therapy with sodium edetate (EDTA) improved renal function and slowed the progression of renal insufficiency in patients subjected to lead intoxication. This study was performed to identify the underlying mechanism of the ability of EDTA treatment to protect kidneys from damage. METHODS The effects of EDTA administration were studied in a rat model of acute renal failure ...

2012
Sarbani Hazra Rajdeep Guha Geram Jongkey Himangshu Palui Akhilesh Mishra Geeta K. Vemuganti Samar K. Basak Tapan Kumar Mandal Aditya Konar

PURPOSE To evaluate the effect of ethylenediaminetetraacetic acid (EDTA) on posterior capsular opacification (PCO) of rabbits and to assess its effect on intraocular tissues. METHODS Modulation of matrix metalloproteinase (MMP) activity in the aqueous following cataract surgery in rabbits and its prevention by different doses of EDTA was determined by zymography. For evaluation of PCO, lensec...

Journal: :Journal of endodontics 1997
J J Segura J R Calvo J M Guerrero A Jimenez-Planas C Sampedro R Llamas

The disodium salt of ethylenediamine tetraacetate (EDTA) is a calcium ion chelator used in endodontics to enlarge root canals. This study investigated the effect of EDTA on substrate adherence capacity of rat inflammatory macrophages to determine if EDTA leakage to periapical tissues during root canal therapy can alter macrophage function. Inflammatory macrophages were obtained from Wistar rats...

Journal: :Pesquisa odontologica brasileira = Brazilian oral research 2003
José Eduardo Cezar Sampaio Ricardo Samih Georges Abi Rached Gibson Luiz Pilatti Letícia Helena Theodoro Luiz Henrique Carvalho Batista

The purpose of this study was to compare the removal of root surface smear layer following active application of EDTA gel and EDTA-T (texapon) gel in different concentrations (5%, 10%, 15%, 20% and 24%), using scanning electron microscopy. A total of 220 dentin blocks obtained from the root surfaces of extracted teeth were divided into 3 groups: Group I - (control) application of saline solutio...

2014
Carel Theo Jozef Wreesmann

The current maximum acceptable daily intake (ADI) of ethylenediaminetetraacetic acid (EDTA) of 1.9 mg day(-1) per kilogram bodyweight (mg day(-1)  kgbw(-1) ) limits the daily intake of iron as iron EDTA [ferric sodium EDTA; sodium iron(III) EDTA] to approximately 2-2.5 mg day(-1) for children 6-24 months of age. This limit was defined by the Joint FAO/WHO Expert Committee on Food Additives (JEC...

Journal: :Applied and environmental microbiology 2006
Ehud Banin Keith M Brady E Peter Greenberg

Biofilms consist of groups of bacteria attached to surfaces and encased in a hydrated polymeric matrix. Bacteria in biofilms are more resistant to the immune system and to antibiotics than their free-living planktonic counterparts. Thus, biofilm-related infections are persistent and often show recurrent symptoms. The metal chelator EDTA is known to have activity against biofilms of gram-positiv...

Journal: :Journal of the American Chemical Society 2003
Junji Iwahara D Eric Anderson Elizabeth C Murphy G Marius Clore

EDTA-derivatized deoxythymidine (dT-EDTA), incorporated into DNA and complexed to Fe2+ in the presence of dithiothreitol, is a widely used reagent for sequence-specific cleavage of duplex DNA. Using HPLC/electrospray mass spectrometry, we show that cleavage is specific to Fe2+, and no cleavage occurs when DNA-EDTA is complexed to other metal ions such as Ca2+, Mn2+, and Fe3+ even after many day...

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