Articles tagged with Vitamin C
Research at the University of Iowa shows that high-dose vitamin C selectively kills cancer cells by generating hydrogen peroxide, a reactive oxygen species. Cancer cells with low catalase activity are more susceptible to damage and death when exposed to high amounts of vitamin C.
Researchers found that vitamin C intake was associated with clearer lenses and a reduced risk of cataract progression. The study suggests that increasing fruit and vegetable consumption through a healthy diet may help protect against cataracts, particularly in older adults.
A diet high in vitamin C may help delay or prevent cataract progression. Researchers found that consuming vitamin C-rich foods reduced the risk of cataract development and severity by up to 33%. Genetic factors played a smaller role in cataract progression, with environmental factors such as diet accounting for 65% of the difference.
A new study found that adult consumers of fresh pears had a lower body weight and were 35% less likely to be obese compared to non-pear consumers. Pear consumption was also associated with higher diet quality, as defined by the Healthy Eating Index.
A new study published in Science magazine reveals that vitamin C can selectively kill colorectal cancer cells with certain mutations, such as KRAS and BRAF. The research found that these mutated cells take up oxidized vitamin C through a specific receptor, leading to oxidative stress that inactivates an enzyme required for growth.
A study published in American Journal of Clinical Nutrition found a 15% lower risk of cardiovascular disease and 20% lower risk of early death with high vitamin C blood levels. Vitamin C's antioxidant properties help protect cells from damage, supporting overall health.
Researchers discovered a mechanism by which plants regulate their vitamin C levels in response to environmental factors. This finding may help improve plant breeding programs and prevent iron deficiency anaemia worldwide.
Researchers from RIKEN and Okayama University identified PHT4;4 as the transport protein allowing vitamin C to enter chloroplasts. This discovery could lead to crop plants with higher tolerances to environmental stress, reducing damage to farmland in regions with strong light.
New nanoparticles can perform magnetic resonance imaging (MRI) and fluorescent imaging simultaneously, allowing for the tracking of specific molecules produced in the body. The particles were demonstrated to detect vitamin C in mice, showing strong fluorescent signals where vitamin C is present but little MRI contrast.
A recent study found that most US adults fail to meet daily nutrient recommendations, with those with disabilities having poorer nutrition. The research highlights the need for policymakers and activists to address nutritional challenges faced by people with disabilities.
Scientists have discovered that wild tomato species like Solanum habrochaites and Solanum peruvianum contain higher levels of antioxidants, which can help improve the health-related characteristics of cultivated tomatoes. The study provides valuable insights for breeding programs aiming to enhance antioxidant traits in elite tomato lines.
Researchers have found that coating stents with vitamin C could lower implant-related risks by inhibiting smooth muscle cell growth and encouraging endothelial cells. This technique could make stents safer for millions of Americans who receive them annually.
A study published by JAMA found that vitamin C supplementation during pregnancy can improve measures of lung function for newborns and decrease the incidence of wheezing in infants up to 1 year. This intervention may help minimize the harmful effects of maternal smoking on respiratory health.
A study of 65 participants with intracerebral hemorrhagic stroke and 65 healthy individuals found that those with depleted vitamin C levels had a higher risk of stroke. The study suggests that maintaining normal vitamin C levels may help reduce stroke risk.
A new study suggests that high doses of vitamin C and E supplements can blunt the improvement of muscular endurance through cellular adaptions. The study found that markers for muscle mitochondria production increased only in the group without supplements.
Many clinical studies on vitamins have poor methodology, leading to inaccurate conclusions and defying existing evidence. New methodologies are needed to provide scientifically valid information to consumers with inadequate diets or deficiencies.
Researchers at UCSF discovered that vitamin C helps release brakes on genes in mouse stem cells, potentially playing a key role in normal development. This finding may lead to the use of vitamin C in IVF and cancer treatments, as it can stimulate gene activity similar to early embryonic development.
Exercise-induced bronchoconstriction affects 10% of the population, causing symptoms like cough, wheezing, and shortness of breath. Vitamin C has been shown to halve the FEV1 decline caused by exercise in three randomized trials, indicating a potential benefit against this condition.
Researchers at Albert Einstein College of Medicine discovered that vitamin C can kill drug-resistant tuberculosis (TB) bacteria in laboratory culture, suggesting a new approach to shorten TB therapy. The study found that vitamin C induced a Fenton reaction, causing reactive oxygen species that kill the TB bacteria.
New research published in Arthritis & Rheumatism found that vitamin C supplementation had a weak effect on lowering uric acid levels in gout patients. The study suggests that vitamin C may not be a viable therapy for reducing uric acid levels in patients with established gout.
Babies born to mothers who took vitamin C during pregnancy had less wheezing in the first year of life compared to those who received a placebo. Vitamin C supplementation improved lung function at birth and reduced episodes of wheezing through one year of age.
A large population-based study of men found that those taking vitamin C supplements are twice as likely to develop kidney stones as non-supplement users. The risk increased with the frequency of supplement use. Conversely, multivitamin use was not associated with an increased risk of kidney stones.
A study published in Annals of Neurology found that diets high in carotenoids, particularly beta-carotene and lutein, were linked to reduced risk of amyotrophic lateral sclerosis (ALS). The researchers also discovered that individuals with higher intake of antioxidants had a lower ALS risk.
A new study at the University of Copenhagen found that maternal vitamin C deficiency during pregnancy can stunt fetal hippocampus development by up to 10-15%, potentially leading to memory problems and learning difficulties. The damage cannot be reversed even with vitamin C supplements after birth.
Researchers at Mount Sinai School of Medicine have shown that large doses of vitamin C can stimulate bone formation and prevent bone loss in animal models. The study suggests that vitamin C may be a promising therapeutic agent for treating osteoporosis, particularly in developing nations where treatment options are limited.
A study by Berkeley Lab scientists found that older men who consume more vitamin C, E, folate, and zinc have less sperm DNA damage. This suggests that adequate micronutrient intake can help counteract the detrimental effects of aging on sperm genome health.
Research suggests raising the recommended daily intake of vitamin C to 200mg could prevent chronic diseases like heart disease and stroke. Studies show that higher levels of vitamin C can lower blood pressure, reduce inflammation, and enhance immune function.
Biochemists at UC Riverside discovered that increasing vitamin C levels can produce twins and triplets in plant seeds. This finding has the potential to increase fertility in low-fertility crops and boost their value. The researchers' study results were published online in PLoS ONE.
A new study has found that vitamin C supplementation in pregnant women who are unable to quit smoking significantly improves pulmonary function in their newborns. Daily use of vitamin C (500 mg/day) improved peak tidal expiratory flow and respiratory compliance, returning them nearly to the levels seen in non-smokers.
A review of 29 clinical trials found that taking an average of 500 milligrams of vitamin C daily reduced blood pressure by 3.84 millimeters of mercury in the short term. However, more research is needed to understand its implications as a treatment for high blood pressure.
A recent study found that up to three quarters of elderly people in parts of India have vitamin C deficiency, primarily due to a low intake of fruit and vegetables. The study highlights the need to improve nutrition and discourage tobacco use among the elderly population.
Research found that heart failure patients with low vitamin C intake had shorter intervals without major cardiac issues or death and were more likely to die from cardiovascular disease. Inflammation pathways in heart failure may contribute to poor health outcomes.
Researchers found that anti-caking agents in powdered vitamin C products can accelerate degradation, even protecting it from moisture. This is due to the chemical properties of these agents, which can absorb or repel water and lead to further reactions that lower the nutrient's stability.
Researchers aim to determine optimal Vitamin C dosing schedule and test therapy in septic patients to moderate organ dysfunction and improve outcomes. A potential new treatment for sepsis may be on the horizon thanks to a significant grant.
A study by Al-Biltagi and Hemila found that vitamin C supplementation increased FEV1 levels by 37% in younger children with no mold exposure, while the benefit was smaller in older children. Vitamin C showed greatest benefit in mild asthma symptoms.
Researchers at Lund University have discovered a new function for vitamin C, finding that it can dissolve toxic protein aggregates in the brain that build up in people with Alzheimer's disease. The treatment has potential to delay and alleviate the progression of the disease by addressing its symptoms.
A new study reveals that gazpacho's vitamin C content and other organic acids decrease significantly after preparation. Peppers and tomatoes have higher levels of these nutrients, while cucumbers contain the lowest amount. The authors suggest consuming gazpacho immediately or preserving it correctly to maintain its antioxidant properties.
A study of over 11,500 children found that consuming white potatoes in meals increases the intake of other vegetables and essential nutrients like potassium and fiber. Potatoes were not linked to higher rates of obesity or overweight in children.
Researchers at the University of Nottingham are exploring whether chocolate and orange consumption can slow down muscle loss and frailty in older adults. The study aims to investigate the impact of cocoa and vitamin C on blood flow to leg muscles, with potential implications for improving mobility and reducing fall-related deaths.
A study by the University of Helsinki found that vitamin E supplementation reduces mortality by 24% in participants aged 71 or older. However, it had no effect on life expectancy for those between 65 and 70 years old with high dietary vitamin C intake.
A groundbreaking study by Professor Douglas Kell found that poorly-bound iron causes the production of hydroxyl radicals, leading to degenerative diseases. Purple fruits and green tea are identified as excellent sources of iron chelators, which can bind iron tightly.
Researchers have found that vitamin C can prevent the onset of sepsis and even reverse the disease by restoring blood flow to vital organs. Early and delayed injections of vitamin C have been shown to improve survival rates in mice with sepsis, making it a promising treatment option.
A study of over 11,500 male physicians found that long-term use of vitamins E and C had no significant impact on the development or extraction of age-related cataracts. The researchers concluded that high-dose supplementation with these vitamins has little effect on rates of cataract diagnosis and extraction.
A study by LDI researchers found that vitamin C supplementation improved mood states in hospitalized patients, but had no effect on vitamin D levels. The treatment is simple, safe, and cheap, with major clinical practice implications.
A new study found that vitamin C and E supplements do not prevent pre-eclampsia in pregnant women with type 1 diabetes, but may benefit those with low antioxidant status. The supplement did not cause harm to mothers or babies.
A recent NIH study found that vitamin C and E supplements starting in early pregnancy do not reduce the risk of hypertensive disorders and their complications. The supplements did not show any significant difference in preeclampsia or other pregnancy-related hypertension complications, contradicting earlier small studies.
Fresh spinach leaves stored under continuous light exposure show significantly higher levels of vitamins C, K, E, and folate, as well as healthful carotenoids lutein and zeaxanthin. Continuous light exposure after nine days increases folate levels by up to 100% and vitamin K levels by 50-100%
A Purdue University study reveals that high humidity in bathrooms and kitchens can cause vitamins and health supplements to lose their potency. Storing products in dry conditions, below their deliquescence relative humidities, can help maintain their effectiveness.
Researchers at the NIH have identified a key role for the protein Slc23a1 in controlling vitamin C levels in mice, which is essential for perinatal survival. Additionally, they discovered that treating multidrug-resistant leukemia cells with a specific drug can resensitize them to glucocorticoids and other cytotoxic agents by activatin...
A recent study found that insufficient vitamin C levels can be fatal to mice during pregnancy. The Slc23a1 protein plays a vital role in vitamin C absorption and tissue accumulation. Researchers identified key functions for this transporter, including renal reabsorption and perinatal survival.
Researchers reviewed the effects of Vitamins C and E and magnesium on diabetic retinopathy, finding no strong evidence to support their use as supplements. Ethnic norms were established for preschoolers' eyesight, revealing higher rates of myopia in African-American children compared to Hispanic children.
Researchers found that vitamin C stops and reverses accelerated aging in mice with a mutation in the WRN gene, a common cause of premature aging. The study suggests that vitamin C may be beneficial for individuals with progeroid syndromes like Werner's syndrome.
Researchers at the University of Santiago de Compostela have developed a new technique to accurately measure vitamin C in fruit juices and soft drinks. The study found that only two out of 17 samples matched their labels, revealing higher levels of natural vitamin C in other drinks.
A new study reveals that vitamin C helps promote wound healing and protects skin cells from DNA damage, a finding with great relevance to the cosmetics industry. The research also suggests that vitamin C can help remove DNA damage caused by free radicals, leading to potential advances in skin regeneration and cancer prevention.
Research at University of Copenhagen suggests that vitamin C deficiency in pregnant and breast-feeding women may lead to impaired mental development in new-born babies. Guinea pigs subjected to moderate vitamin C deficiency have reduced hippocampal neurons and spatial memory impairments.
Researchers found that a combination of insulin and vitamin C stopped blood vessel damage caused by Type 1 diabetes in patients with poor glucose control. The therapy's effectiveness was proven in humans for the first time, offering hope for diabetic patients to avoid complications.
Men with higher vitamin C intake appear less likely to develop gout, a painful type of arthritis. Vitamin C may reduce levels of uric acid in the blood and affect kidney function, leading to a lower risk of gout.
A recent study on vitamin C treatment in cancer has been disputed by a nutrition expert due to the use of oxidized form of vitamin C and toxic doses. Contrasting findings suggest that high-dose vitamin C may have beneficial effects on cancer cells, tumor cell death, and postsurgical healing.
A new study published in the Journal of the American Dietetic Association found that many middle-aged and older Americans are not getting adequate nutrition. Supplement use was associated with meeting recommended dietary intakes for calcium, magnesium, and vitamin C, but potassium intake remained low regardless of supplement use.
A six-year vitamin E supplementation study found that high dietary vitamin C intake significantly influenced the effect of vitamin E on mortality in male smokers. Vitamin E decreased mortality by 41% in elderly smokers with high vitamin C intake, while increasing mortality by 19% in middle-aged smokers with similar intake levels.