Help to quantify the GSH/GSSG ratio?

15 August 2024 0 6K Report

I am doing a spectophotometric method for quantifying the GSH/GSSG ratio in Ishikawa cell line (endometrial adenocarcinoma) after treatment with NAC and hydrogen peroxyde, using a solution with phosphate/EDTA buffer + DTNB + GR + supernatant for free GSH absorbance (412nm, 25ºC), and a solution with phosphate buffer + NADPH + GR + supernatant for total GSH absorbance (340nm, 30ºC).

I don't know how to translate the values of absorbance to the GSH/GSSG ratio. Does anyone have a sugetion?

Badges
Science topic

More Julia Coelho's questions See All

Gromacs first step of minimization ?

I have face this problem anyone help me how to solve this issue ?which is below Fatal error: There are inconsistent shifts over periodic boundaries in a molecule type consisting of 78 atoms. The...

07 August 2024 2,598 1 View

Can I multiplex a mouse monoclonal and rat primary for IHC (mouse brain tissue)?

Hi all, I was just wondering if anyone has experience with multiplexing a mouse monoclonal primary and a rat primary. I'm trying to multiplex by incubating them in the same well but was told by a...

06 August 2024 9,710 1 View

Please inform me about the International Conference on Plant Biology?

Please inform me about the International Conference on Plant Molecular Biology, or Plant Biology, scheduled for December 2024, January/February, or March 2025.

14 July 2024 3,120 7 View

Is there any standard format or protocol for plant photo-plate creation?

need to know protocol for photoplate creation, styles, etc

11 July 2024 8,321 2 View

Unification of General Relativity and Quantum Mechanics is possible ?

How can anyone develop a theoretical framework that successfully unifies general relativity and quantum mechanics? how this new theory should accurately describe gravitational interactions at...

10 July 2024 5,040 8 View

Radial Basis Functions Based Differential Quadrature Method for One Dimensional Heat Equation "required matlab code" and provide code in discription?

I am able to submit the code documents. Although my graph is 1, I would like to be in the 6E-05 graph range. Please, someone correct the error.

08 July 2024 5,770 0 View

My cells need to be treated 4 times (0-72hrs) and then take conditioned media for LC-MS. Can I keep them in serum free for so long? Recommendations?

I have tried to optimize the serum free dmem which is the best but i am afraid the secretory profile has too much variations.

03 July 2024 4,044 3 View

How can we describe the cognitive mechanisms of trauma-processing in simple terms?

Please help me with one or more of the following, if possible: How does a client mentally process the trauma? What are the cognitive domains of processing? What measures are available to assess...

02 July 2024 6,263 0 View

Does anybody know if amino acids like GABA, BABA, proline, lysine, valine or any other non-aromatic amino acid are destroyed by UV light?

I am trying to eliminate infection from my plates and therefore, gave UV treatment after addition of amino acid (used for better growth). Can you please suggest if UV destroys amino acids or not,...

02 July 2024 2,922 1 View

Is defatted soybean considered a pulse?

According to various research, soybean is not considered a pulse because of its high fat content.

30 June 2024 6,311 0 View

AMAXA Lonza nucleofection lower volume of buffer?

Does anyone tried to do nucleofection with AMAXA by Lonza with lower than recommended amount of buffer in the cuvettes (100 ul)?

07 August 2024 4,616 0 View

Why I can't see any band in SDS-PAGE?

Currently, when I run SDS-PAGE, I don't see any bands at all, even though I used the same material just a day ago and it worked fine.... In our lab, we dilute the 10X running buffer to 1X and...

06 August 2024 5,373 2 View

Why might the impedance values for DI water and 0.1X PBS buffer solution exhibit a decreasing and increasing trend, respectively over time (HP 4194A)?

Hello everyone, I'm encountering an issue with my electrochemical impedance spectroscopy (EIS) measurements and would appreciate some insights. Experimental Setup: Electrodes: Gold interdigitated...

05 August 2024 3,783 2 View

How to draw the five chelate rings of [Co(EDTA)]- on this picture?

Is this circle one of the rings?

03 August 2024 5,988 0 View

PBMC infection with virus?

In my study, I intend to infect PBMCs with SARS-CoV-2. After that, I will analyze NK cells by flow cytometry to see if their phenotype changes or if they show degranulation. After the infection, I...

01 August 2024 4,403 4 View

What is the best blank for nanodrop if I want to read a recombinant protein concentration?

Is it the "elution buffer" or the "dialysis buffer"? Note: I'll be using NanoDrop OneC

01 August 2024 967 3 View

GSH estimation assay: What is the right choice of standard?

Hi there, My question is: What standard curves should be used while estimating Tot GSH and GSSG by kinetic method using GR enzyme mediated recyling with DTNB chromophore? Actually I am following...

01 August 2024 8,217 1 View

EDTA buffer solution?

Hello everyone! How can i prepare EDTA buffer solution (pH 8.2) to determine GSH levels? Thank you in advance.

29 July 2024 4,374 1 View

Whether i can preserve leaves samples in 2.5% glutaraldehyde in 0.05 M phosphate buffer, pH 7 for coming several weeks for further LM study ?

I want to preserve the sample leaves for the LM study of the stomata and conidia analysis. Whether 2.5% glutaraldehyde in 0.05 M phosphate buffer with pH 7 can be applied for preservation.

29 July 2024 8,560 0 View

Addition of EDTA during the synthesis of copper nanoparticles to prevent it from being oxidized?

I've attempted to use this method to synthesize copper nanoparticles. Copper nanoparticles can be synthesised using a variety of precursor materials. CuSO4, distilled water, NaOH, and EDTA are...

28 July 2024 8,027 3 View