Human GPX2 (Glutathione peroxidase 2) ELISA Kit (DEIA-FN581)

Regulatory status: For research use only, not for use in diagnostic procedures.

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Size
96T
Sample
serum, plasma, cell culture supernatants, tissue homogenate
Species Reactivity
Human
Intended Use
For quantitative detection of Human GPX2 (Glutathione peroxidase 2) in serum, plasma, tissue homogenates and other biological fluids.
Contents of Kit
1. 96-well strip plate (Dismountable), 1 plate
2. Lyophilized Standard, 2 vials
3. Sample/Standard dilution buffer, 20 mL
4. Biotin-detection antibody (Concentrated), 120 uL
5. Antibody dilution buffer, 10 mL
6. HRP-Streptavidin Conjugate(SABC), 120 uL
7. SABC dilution buffer, 10 mL
8. TMB substrate, 10 mL
9. Stop solution, 10 mL
10. Wash buffer (25X), 30 mL
11. Plate Sealer, 5 pieces
12. Product Manual, 1 copy
Storage
Store the unopened product at 2 - 8 °C. Do not use past expiration date.
Precision
Intra-Assay: CV<8%
Inter-Assay: CV<10%
Detection Range
78-5000 pg/mL
Sensitivity
46.9 pg/mL
Standard Curve

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References


Protective effect of overexpression of PrxII on H2O2-induced cadiomyocyte Dnjury

EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES

Authors: Gao, T.; Che, X-X; Wang, R.; Xiao, C-S; Jia, Y-P

OBJECTIVE: Oxidative stress is one of the main factors leading to myocardial cell damage, and the redox imbalance promotes apoptosis. Therefore, the purpose of this study was to explore the protective effect of PrxII on H2O2-induced H9c2 cell injury. MATERIALS AND METHODS: The overexpressed Prx11 cell model was constructed by virus. The H9c2 cells were treated with H2O2, and the supernatant and cells were collected. Then, the chymotrypsin-like activity, caspase-like activity, and trypsin-like activity were detected by the kit, and the expressions of P21, P27, and P53 were detected by the ELISA method. Finally, the expressions of antioxidant factors, apoptosis-related factors, and AMPK/Sirt1 signaling pathway were detected by Western blot and Real-time polymerase chain reaction (PCR). RESULTS: Overexpression of Prx11 inhibited the decrease of enzyme activity induced by H2O2, promoted the expressions of anti-oxidation factors GPX1, GPX2, and GSX, and inhibited the expressions of apoptosis-related factors P21. P27, and P53, and activated AMPK/Sirt1 pathway. CONCLUSIONS: Overexpression of Prx11 can activate the AMPK/Sirt1 pathway, thereby inhibiting H2O2-induced oxidative stress and slowing apoptosis.

A novel strain of Lactobacillus mucosae isolated from a Gaotian villager improves in vitro and in vivo antioxidant as well as biological properties in D-galactose-induced aging mice

JOURNAL OF DAIRY SCIENCE

Authors: Yu, Xiaomin; Li, Shengjie; Yang, Dong; Qiu, Liang; Wu, Yaoping; Wang, Dengyuan; Shah, Nagendra P.; Xu, Feng; Wei, Hua

Twelve isolates isolated from the gastrointestinal tracts of Gaotian villagers in China, who had a lifespan of 92 yr, were examined for their antioxidants using free radical scavenging activity and 2,2-diphenyl-1-picrylhydrazyl. Three strains (i.e., Lactobacillus mucosae LMU1001, and Lactobacillus plantarum LPL0902 and LPL0302) were selected as candidates to prepare yogurt for testing their antioxidants in a model of D-galactose-induced aging mice, with vitamin C as a positive control. The results showed that L. mucosae LMU1001 was the best strain, which had similar in vivo antioxidant activity as vitamin C. A significant increase was found in the activities of glutathione peroxidase in serum and total superoxide dismutase in the liver, and a decrease in the level of malondialdehyde in serum. Regarding mRNA expression level detected quantitatively by real-time PCR, we observed that L. mucosae LMU1001 significantly upregulated antioxidant genes (i.e., MT1A and MT1M in HT-29 and Caco-2) and those genes (i.e., MT1, MT2, GPx1, and GPx2) in the intestinal tract of the model mice. Hence, this strain could be considered as a potential probiotic lactic acid bacterium for improving antioxidant levels in functional foods.

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