When To Worry About Shortness of Breath â¦ and When Not To. Difficulty breathing is a common complaintâ¦ and a tough diagnostic challenge. Like abdominal pain, dizziness, or fatigue,1 minor breathing difficulties can have many possible causes.
- implantation prevention (think chirality in chemical kinetics) Oxidation can be prevented by putting a barrier, like coating iron with paint to keep it from oxidizing. It can also be accomplished with dopants that interfere with the reaction kinetics, like stainless steel is a steel plus a few ingredients.
Phase I reactions can be classified as oxidation, reduction, or hydrolysis. Oxidation is carried out by cytochrome P-450 monooxygenases, mixed-function amine oxidases, and alcohol and aldehyde dehydrogenases. The reactions mediated by cytochrome P-450 monooxygenases can make the chemical less toxic or more toxic.