All articles tagged with #free radicals
Originally Published 2 months ago — by ScienceDaily
Scientists at Weill Cornell Medicine discovered that free radicals produced in astrocytes' mitochondria contribute to dementia, and blocking these radicals with targeted compounds reduced inflammation and protected neurons in animal models, opening new avenues for treatment.
Originally Published 4 months ago — by Phys.org
Chemists criticize claims about hydrogen water, emphasizing misunderstandings about water's molecular composition and highlighting the lack of strong scientific evidence supporting health benefits, suggesting it may be a hoax.
Originally Published 1 year ago — by Livescience.com
While antioxidants are beneficial in preventing cell damage, excessive intake through supplements can lead to harmful effects such as skin discoloration, digestive issues, increased risk of certain diseases, and interactions with medications. Research suggests that a balanced diet rich in fruits and vegetables provides sufficient antioxidants, and exercise can boost the body's natural antioxidant production. It's important to consult a healthcare professional before considering antioxidant supplements, as overconsumption may lead to toxicity. The concept of "hormesis" emphasizes that a low dose of antioxidants may be beneficial, but excessive amounts can be harmful.
Originally Published 1 year ago — by Livescience.com
Tardigrades, also known as water bears or moss piglets, have been found to enter a near-invincible state by producing free radicals that transform them into a dehydrated hibernation state, enabling them to survive extreme conditions such as outer space and powerful radiation. Scientists discovered that the free radicals react with the amino acid cysteine to facilitate this transformation, and inhibiting this process renders the tardigrades incapable of entering the tun state. This molecular trick sheds light on the tiny creatures' remarkable survival skills and opens up avenues for further research into their resilience.
Originally Published 2 years ago — by Medical Xpress
Scientists at Northwestern University have developed a synthetic melanin that mimics the natural melanin in human skin. When applied topically, the synthetic melanin accelerates wound healing and protects the skin from sun exposure and damage caused by sunburn or chemical burns. The synthetic melanin acts as a sponge, scavenging free radicals that can cause inflammation and cell damage. It also quiets the immune system, allowing for active healing. The cream could potentially be used for blisters and open sores, and may have applications in treating skin burns from radiation exposure and cancer patients undergoing radiation therapy.
Originally Published 2 years ago — by Verywell Health
Antioxidants are important for protecting cellular health and reducing the risk of diseases. They neutralize free radicals, which can cause damage to our cells. Antioxidants are found in colorful plant foods like leafy greens, nuts, and berries, as well as in certain animal-derived sources. Consuming a variety of minimally processed foods is the best way to incorporate antioxidants into your diet. A diet low in antioxidants can increase the risk of chronic diseases. While antioxidant supplements are available, it is best to obtain antioxidants from whole foods rather than relying on high-dose supplements. Including antioxidant-rich foods in your meals and snacks can be easily done to reap the benefits.
Originally Published 2 years ago — by Longevity.Technology
Researchers at the Buck Institute for Research on Aging and Calico Labs have developed a compound, S1QEL1.719, that selectively blocks the production of free radicals in mitochondria, the powerhouses of our cells. By inhibiting free radical production at a specific site in mitochondrial complex I, the compound prevents and treats metabolic syndrome in mice, including reversing insulin dependence. This breakthrough could potentially lead to disease-treating and anti-aging interventions by targeting the production of free radicals, which are implicated in chronic diseases of aging. The compound acts as a cork, plugging the site without hindering the mitochondria's critical function of energy metabolism.
Originally Published 2 years ago — by USA TODAY
Oxidative stress occurs when there is an imbalance between free radicals and antioxidants in the body, leading to cell damage. While some low-level oxidative stress may be beneficial, chronic overload can lead to diseases such as cancer and dementia. Antioxidants found in fruits and vegetables can help neutralize free radicals. However, supplements are not proven to be protective against diseases and should be taken under the guidance of a physician.