Common questions

Can drugs cause oxidative stress?

Can drugs cause oxidative stress?

In addition to association with disease states, there is clear evidence to implicate drug-induced oxidative stress as a mechanism of toxicity in numerous tissues.

Which medications cause oxidative stress?

Hence, the CellROX®-positive anticancer drugs, actinomycin D, doxorubicin, mitomycin C, carmofur, mercaptopurine, camptothecin, paclitaxel, vinblastine, and vinorelbine, ultimately induce oxidative stress in the cells and may cause side effects in cancer patients.

How does oxidative stress cause inflammation?

Oxidative stress can cause chronic inflammation. Infections and injuries trigger the body’s immune response. Immune cells called macrophages produce free radicals while fighting off invading germs. These free radicals can damage healthy cells, leading to inflammation.

How does oxidative stress damage DNA?

DNA damage is any modification to the structure of DNA that alters its coding properties and/or interferes with cell processes. One major consequence of oxidative stress is DNA damage, which include base modifications, abasic sites, and strand breaks.

Can oxidative stress be reversed?

(2003) have shown that oxidative stress is associated with age-related cognitive deficits, which are reversed by treatment with ROS scavengers.

How do you induce oxidative stress?

Techniques for manipulating oxidative stress include agents that increase generation of pro-oxidants, such as paraquat, diquat, radiation, heavy metals, dietary oxidized lipids, and tert-butyl-hydroperoxide, as well as genetic (RNAi) and chemical (buthionine sulfoximine) knock-downs that target specific antioxidants.

What is the product of oxidatively damaged DNA due to mutation?

Oxidized bases in DNA When DNA undergoes oxidative damage, two of the most common damages change guanine to 8-hydroxyguanine or to 2,6-diamino-4-hydroxy-5-formamidopyrimidine.

What vitamins are good for oxidative stress?

Vitamin C, vitamin E, and beta-carotene, often referred to as “antioxidant vitamins,” have been suggested to limit oxidative damage in humans, thereby lowering the risk of certain chronic diseases.

Which vitamin is a powerful antioxidant?

Vitamin E is a fat-soluble vitamin that exists in eight different forms. Each form has its own biological activity, which is the measure of potency or functional use in the body. Alpha-tocopherol is the most active form of vitamin E in humans. It is also a powerful biological antioxidant.

What is the drug Ros?

Reactive oxygen species (ROS) are metabolic byproducts of aerobic respiration and are responsible for maintaining redox homeostasis in cells. Redox balance and oxidative stress are orchestrated by antioxidant enzymes, reduced thiols and NADP(H) cofactors, which is critical for cancer cells survival and progression.

Is oxidative stress linked to disease?

Oxidative stress has been linked to several neurological diseases (i.e., Parkinson’s disease, Alzheimer’s disease (AD), amyotrophic lateral sclerosis (ALS), multiple sclerosis, depression, and memory loss) [32–35].

Which drugs are associated with oxidative stress?

Well-characterized drugs associated with adverse events to which oxidative stress may contribute, including examples of cancer therapies, non-steroidal anti-inflammatory drugs (NSAID), antiretroviral agents, antipsychotics, and analgesics, as illustrated in Table 1.

How does oxidative stress affect the kidneys?

The kidneys are negatively affected by oxidative stress mainly because of the fact that ROS production induces the recruitment of inflammatory cells and proinflammatory cytokine production, leading to an initial inflammatory stage.

Do antioxidants work against oxidative stress?

Several antioxidants have been exploited in recent years for their actual or supposed beneficial effect against oxidative stress, such as vitamin E, flavonoids, and polyphenols.