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Key Documents

CS0790

Sigma-Aldrich

Antioxidant Assay Kit

sufficient for 200 tests

Synonyme(s) :

Oxidative Stress Detection Kit

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About This Item

Code UNSPSC :
12161503
Nomenclature NACRES :
NA.84

Utilisation

sufficient for 200 tests

Niveau de qualité

Méthode de détection

colorimetric

Conditions d'expédition

wet ice

Température de stockage

2-8°C

Description générale

Free radicals or reactive oxygen species (ROS) are produced during biochemical redox reactions as part of normal physiological cell metabolism (protection from infectious organisms) and as a response to environmental factors such as UV light, cigarette smoke, environmental pollutants, and g-radiation. Once formed, ROS attack cellular components causing damage to lipids, proteins, and DNA, which can initiate numerous diseases, including cancer, atherosclerosis, rheumatoid arthritis, diabetes, liver damage, and central nervous system disorders.
In the presence of antioxidants the radical cation is suppressed to an extent dependent on the activity of the antioxidant and the color intensity is decreased proportionally. Trolox, a water-soluble vitamin E analogue, serves as a standard or a control antioxidant.

Application

Antioxidant assay kit provides all of the reagents required for an efficient measurement of the total antioxidant capacity of plasma, serum, urine, saliva, cells, and tissue lysates. It has also been used to measure the radical cation (2,2′-azino-di-[3-ethylbenzthiazoline sulphonate]) (ABTS+) scavenging capacity.
It was tested on A431 and CHO cell lysates; rat brain, liver, and kidney lysates; human plasma, serum, urine, and saliva.

Adéquation

Suitable for the measurement of the total antioxidant capacity of plasma, serum, urine, saliva, cells, and tissue lysates

Principe

The principle of the antioxidant assay is formation of a ferryl myoglobin radical from metmyoglobin and hydrogen peroxide, which oxidizes the ABTS (2,2¢-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) to produce a radical cation, ABTS·+ , a soluble chromogen that is green in color and can be determined spectrophotometrically at 405 nm.

Notes préparatoires

Reagents are to be prepared with ultrapure water.

Reconstitution

Myoglobin Solutions are to be stored at -20C after reconstitution.
Trolox Working Solution is to be stored at -20C after reconstitution.
ABTS Substrate Solution is to be stored at 4C for 2 weeks or at -20C for 1 month.

Informations légales

Composants de kit seuls

Réf. du produit
Description

  • Assay Buffer 10X 30 mL

  • Stop Solution 20 mL

  • Hydrogen Peroxide, 3% solution 1 mL

  • Myoglobin from horse heart 2 x 1

  • (±)-6-Hydroxy-2,5,7,8-tetramethylchromane-2-carboxylic acid (Trolox®) 2 x 1

  • ABTS, 10 mg tablets 4 tab

  • Phosphate-Citrate Buffer, pH 5 4 tab

Produit(s) apparenté(s)

Réf. du produit
Description
Tarif

Pictogrammes

CorrosionExclamation mark

Mention d'avertissement

Danger

Mentions de danger

Classification des risques

Acute Tox. 4 Oral - Aquatic Chronic 3 - Eye Dam. 1 - Skin Irrit. 2 - STOT SE 3

Organes cibles

Respiratory system

Code de la classe de stockage

10 - Combustible liquids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable


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Consulter la Bibliothèque de documents

Dave C Francisco et al.
Free radical biology & medicine, 44(4), 558-569 (2007-11-17)
Oxidatively induced stress and DNA damage have been associated with various human pathophysiological conditions, including cancer and aging. Complex DNA damage such as double-strand breaks (DSBs) and non-DSB bistranded oxidatively induced clustered DNA lesions (OCDL) (two or more DNA lesions
Reversal of hepatic steatosis by omega?3 fatty acids measured non?invasively by 1H?magnetic resonance spectroscopy in a rat model.
Marsman HA, et al.
Journal of Gastroenterology and Hepatology, 26(2), 356-363 (2011)
Use of sourdough fermentation and pseudo-cereals and leguminous flours for the making of a functional bread enriched of γ-aminobutyric acid (GABA).
Coda R, et al.
International Journal of Food Microbiology, 137(2), 236-245 (2010)
Grit Kasper et al.
Stem cells (Dayton, Ohio), 27(6), 1288-1297 (2009-06-06)
Progenitor cells such as mesenchymal stem cells (MSCs) have elicited great hopes for therapeutic augmentation of physiological regeneration processes, e.g., for bone fracture healing. However, regeneration potential decreases with age, which raises questions about the efficiency of autologous approaches in
Muhammad Arshad et al.
Plant science : an international journal of experimental plant biology, 258, 122-136 (2017-03-24)
Alfalfa (Medicago sativa) is an important forage crop that is often grown in areas that frequently experience drought and water shortage. MicroRNA156 (miR156) is an emerging tool for improving various traits in plants. We tested the role of miR156d in

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