Dojindo,GSSG/GSH Quantification Kit/200/G257

谷胱甘肽(γ-L-glutamyl-L-cysteinylglycine)是一种存在于体内的三肽,作为谷胱甘肽过氧化物酶、谷胱甘肽S-转移酶、硫醇转移酶等的酶底物参与抗氧化、药物代谢等。谷胱甘肽通常以还原形式 (GSH) 存在,但 GSH 通过氧化应激等刺激转化为其氧化形式 (GSSG)。因此,GSH 和 GSSG 的比值已被记录为氧化应激的指标。GSSG/GSH 定量试剂盒包含 GSH 的掩蔽试剂。只需添加掩蔽试剂即可使样品中的 GSH 失活。因此,使用酶回收系统通过测量 DTNB (5,5 Edithiobis (2-nitrobenzoic acid) 的吸收 (λmax = 412 nm) 仅检测 GSSG。此外,GSH 可以通过从 GSSG 中减去来确定数量谷胱甘肽的总量。该试剂盒仅限于定量 0.5 μmol/l 至 50 μmol/l 的 GSH/GSSG 浓度和 0.5 μmol/l 至 25 μmol/l 的 GSSG 浓度。

Principle


Selective QuantificationAlthough conventional masking reagent, 2-Vinylpyridine(2-VP), interferes the reaction of GSSG measurement, Dojindo’s masking reagent does not interfere the reaction of GSSG measurement. Therefore, the exact ratio of GSSG and GSH is obtained with Dojindo GSSG/GSH detection Kit.

Measurement of GSSG with or without GSH masking reagent


InterferenceReducing agents such as ascorbic acid, β-mercaptoethanol, dithiothreitol (DTT) and cysteine, or thiol reactive compounds such as maleimide compounds, interfere with the glutathione assay. Therefore, SH compounds, reducing agents and SH reactive materials should be avoided during the sample preparation.


Required Equipment and Materials– Plate reader (405 or 415 nm filter)– 96-well microplate– Incubator (37ºC)– 20 µl and 200 µl pipettes, a multi channel pipette– 5-Sulfosalicylic Acid (SSA) Solution– Ethanol


Assay Procedure

Literature used “GSSG/GSH Quantification Kit”

Diurnal Variation of cadmium-induced mortality in miceN. Miura, Y. Yanagiba, K. Ohtani, M. Mita, M. Togawa, and T. Hasegawa, J. Toxicol. Sci., 2012, 37(1), 191<Detailed information on this article>– Measuring object: Hepatic GSH– Sample: Liver (Mice)– Preparation of sample1) Homogenize liver sample in 5% SSA for 30 seconds in ice-water bath.2) Centrifuge the homogenates consisting of 100 mg liver in 1 ml (10%) at 8,000 x g for 10 min. at 4°C to remove proteins.3) Assay with supernatants for GSH using GSSG/GSH Quantification Kit according to the manufacture’s instruction.

Effect of Oxidative Stress on Secretory Function in Salivary Gland CellsK. Okabayashi, T. Narita, Y. Takahashi, H. Sugiya, (2012), Oxidative Stress – Environmental Induction and Dietary Antioxidants, Edited by Volodymyr I. Lushchak, ISBN 978-953-51-0553-4, Hard cover, 388 pages, Publisher: InTech<Detailed information on this article>– Measuring object: GSH– Sample: Parotid acinar cells– Preparation of sample1) Collect parotid acinar cells by centrifugation at 10,000 g for 15 s and immediately mixed with 160 ul of 10 mM HCl.2) Freeze and thraw the mixture three times over, then mix with 40 ul of 5% SSA and then centrifuge at 8,000 g for 10 minutes.3) Collect the supernatant and dilute twice.

Chloroplast DNA Replication Is Regulated by the Redox State Independently of Chloroplast Division in Chlamydomonas reinhardtii Y. Kabeya, and S. Miyagishima, Plant Physiol., 2013, 161, 2102<Detailed information on this article>– Measuring object: GSH and GSSG– Sample: Chlamydomonas reinhardtii– Preparation of sample1) Collect Chlamydomonas reinhardtii cells by 1,000g for 5 min and wash with PBS.2) Resuspended in 5% SSA solution and disrupted by sonication.3) Collect the supernatants by 15,000g for 5 min.4) Isolate chloroplst by 700g for 5 min and wash with 50 mM HEPES-KOH, pH 7.5, containing 300mM sorbitol.5) Resuspend in 5% SSA solution and centrifuge at 15,000g for 5 min

Selected publicationsER Stress Cooperates with Hypernutrition toTrigger TNF-Depe. Cancer Cell. 2014;26:331-343.Purpose: Determine indicator of ER Stress in Liver

Mechanisms of cadmium-inducedchronotoxicity in mice. The journal of toxicological. 2013;38:947-957.Purpose: Determine the GSH/GSSG ratio in cadmium exposed Liver

Hepatitis C Virus Core Protein SuppressesMitophagy by Interacting with Parkin in the Context of MitochondrialDepolarization. The American Journal of Pathology. 2014;184:3026-3039.Purpose: Measure mitochondrial oxidative status in liver

Possible involvement of glutathione balance disruption in dihydropyrazine-induced cytotoxicity on human hepatoma HepG2 cells.The journal of toxicological.2012;37:1065-1069.Purpose: Investigate fluctuation of GSH/GSSG ratio in the cytotoxicity HepG2 Cells

Induction of heme oxygenase-1 contributes to survival of Mycobacterium abscessus in humanmacrophages-likeTHP-1cells.Redox Biology. 2015;4:328-339.Purpose: Determine redox state in macrophages

Age-related changes in salivary biomarkers.Journal of Dental Sciences. 2014;9:85-90.Purpose: Measure GSH/GSSG ratio in salivary

Protective effects of hydrogen sulfideanions against acetaminophen-induced hepatotoxicity in mice. The journal oftoxicological. 2015;40:837-841.Purpose: Measure glutathione of Hepatocyte

1. N. Kubota, et al., A high-fat diet and multiple administration of carbon tetrachloride induces liver injury and pathological features associated with non-alcoholic steatohepatitis in mice. Clin Exp Pharmacol Physiol. 2013; 40(7): 422-302. T. Tomofuji, et al., Supplementation of broccoli or Bifidobacterium longum-fermented broccoli suppresses serum lipid peroxidation and osteoclast differentiation on alveolar bone surface in rats fed a high-cholesterol diet. Nutr Res. 2012; 32(4): 301-73. T. Miyayama., et al., Mitochondrial electron transport is inhibited by disappearance of metallothionein in human bronchial epithelial cells following exposure to silver nitrate. Toxicology. 2013; 8;305: 20-9.4. H. Miwa, et al., Leukemia cells demonstrate a differen t metabolic perturbation provoked by 2-deoxyglucose. Oncol Rep. 2013; 29(5): 2053-7.5. K. Unno, et al., Acute enhancement of non-rapid eye movement sleep in rats after drinking water contaminated with cadmium chloride. J Appl Toxicol. 2013 24.6. Y. Ishihara, et al., Tributyltin induces oxidative stress and neuronal injury by inhibiting glutathione S-transferase in rat organotypic hippocampal slice cultures. Neurochem Int. 2012; 60(8): 782-90.7. H. Miyamoto, et al., Thermophile-fermented compost as a possible scavenging feed additive to prevent peroxidation. J Biosci Bioeng. 2013; 116(2): 203-8.8. E. Taniai, et al., Ochratoxin A induces karyomegaly and cell cycle aberrations in renal tubular cells without relation to induction of oxidative stress responses in rats. Toxicology Letters, October 2013.9. G. Tian, et al., Ubiquinol-10 Supplementation Activates Mitochondria Functions to Decelerate Senescence in Senescence Accelerated Mice. Antioxidants & Redox Signaling, October 2013.

Dojindo细胞分析

细胞活力和细胞毒性测定用于药物筛选和化学物质的细胞毒性测试。Dojindo开发了高度水溶性的四唑盐,称为WST。WST-8是高度稳定的WST,用于Cell Counting Kit-8(CCK-8)。由于WST-8甲maz是水溶性的,因此不会形成晶体。因此,不需要诸如MTT测定的增溶过程。此外,CCK-8的检测灵敏度高于其他四唑盐,例如MTT,XTT,MTS或WST-1。

WST检测机制

 

ß-半乳糖苷酶检测试剂

细胞增殖/细胞毒性转染细胞染色细胞内荧光探针细菌染色微生物活力测定干细胞分化SPiDER-ßGal线粒体检测细胞代谢

应用 产品展示
细胞生长检测,药物筛选,比色/荧光检测 细胞计数试剂盒-8
细胞计数试剂盒8 + 96孔有机硅定向剂
细胞计数试剂盒-F
细胞毒性LDH检测试剂盒
-WST 96孔有机硅定向剂
MTT
了解检测机制的差异: 点击这里
细胞周期分析 细胞周期测定溶液深红色
细胞周期测定溶液蓝色