Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

editorial

. 2014 Jul 14;5:245. doi: 10.3389/fphys.2014.00245

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2014 Seifirad, Ghaffari and Amoli.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

PMC Copyright notice

There is no unit and all figures are representing increase and decrease in parameters, curves, and arrows are representing hypothetical relationship between parameters. ^*Both high levels of ROS and antioxidants are carcinogen; however it seems that in certain conditions such as tuberculosis and smoking slightly increased ROS production could be beneficial rather than hazardous. Optimal equilibrium point is shifted in these conditions to the right. Increased risk of cancer due to other oncogenes (i.e., smoking) needs more alert immune system and more oxidative stress, hence optimal protection point will shift to the right.