Starvation keeps sleep-deprived fly brain sharp
Researchers found that starvation allows the need for nourishment to push aside the need for sleep in fruit flies. The ability to resist sleep loss was linked to a protein involved in lipid processing.
Search results for “Vitamins”
1,000+ results for "Vitamins"
Starving to avoid sleepiness, and cognitive impairments when sleep deprived
Fruit fly research found that starvation increases resistance to sleep loss, linked to a protein managing lipid storage. Disabling a specific gene produces effects similar to starvation, creating sleep resistance and preventing cognitive impairments.
North Korea opens its doors to agroforestry
A pioneering project in North Korea has successfully implemented agroforestry systems on marginal sloping lands, increasing tree cover and crop diversity. The project has made a significant impact on people's lives, providing them with food, vitamins, and income through sustainable land management.
B vitamins and the aging brain examined
Research conducted by the USDA found that low levels of folate are associated with symptoms of dementia and poor brain function, as well as depression in women. The study also identified a protein called holoTC as a potential key to detecting cognitive decline earlier.
SourceUnited States Department of Agriculture - Research, Education and Economics·JournalAmerican Journal of Clinical Nutrition·DateAug 17, 2010
Adequate zinc eases pneumonia in elderly
Researchers found that nursing facility residents with normal zinc levels were 50% less likely to develop pneumonia compared to those with low zinc concentrations. Those with adequate zinc levels also had shorter durations of pneumonia and lower mortality rates.
SourceUnited States Department of Agriculture - Research, Education and Economics·JournalAmerican Journal of Clinical Nutrition·DateAug 10, 2010
B vitamins do not prevent vascular events in stroke patients
A large trial found that B vitamin supplements did not reduce the risk of subsequent vascular events in patients who had a recent stroke or ischemic attack. Despite lowering homocysteine levels, B vitamins were not effective in preventing non-fatal strokes, heart attacks, or vascular deaths.
Breaching the blood-brain barrier to create powerful new tools for fighting cancer
Researchers at Rensselaer Polytechnic Institute are developing new technology to push drugs through the blood-brain barrier, directly targeting brain tumors. The goal is to deliver treatments for diffuse malignant glioma, a lethal type of brain cancer with no cure.
Vitamins needed to help celiacs stave off bone disease
Children with celiac disease are at risk for poor bone health, but adding vitamins K and D to their diets can reduce this risk. Incorporating physical activity into daily routines also boosts bone strength and Vitamin D intake through outdoor exercise.
Tip sheet for journalists: Equol, soy, menopause and bone health research published in Journal of Nutrition
Research suggests that SE5-OH containing Natural S-equol can help alleviate hot flushes and other menopausal symptoms. Additionally, studies have found that soy-based diets may help prevent bone loss in postmenopausal women.
Want to slow aging? New research suggests it takes more than antioxidants
A new study published in Genetics found that mutations in 10 different genes of worms can extend lifespan without reducing oxidative stress. This discovery challenges the long-held notion that oxidative stress is responsible for aging and suggests a slow rate of metabolism may be key to increasing longevity.
Nutrition's potential to save sight
Agricultural Research Service-funded scientists found that a combination of protective nutrients and low-glycemic-index diet provides an AMD protective effect. The most protective nutrients were vitamins C and E, zinc, lutein, zeaxanthin, and omega-3 fatty acids.
SourceUnited States Department of Agriculture - Research, Education and Economics·JournalOphthalmology·DateJul 1, 2010
Vitamin C and E supplements do not prevent pre-eclampsia in pregnant women with type 1 diabetes
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.
Well-defined quantity of antioxidants in diet can improve insulin resistance
A diet rich in antioxidants significantly improves insulin resistance in obese individuals with the metabolic syndrome. The study found that a daily intake of 800-1,000 milligrams of antioxidant-rich foods from fruits and vegetables enhances insulin sensitivity and reduces the risk of developing diabetes.
Higher levels of vitamin B6, common amino acid associated with lower risk of lung cancer
A study analyzing nearly 400,000 participants found that increased blood levels of vitamin B6 and methionine were associated with a reduced risk of developing lung cancer. The findings suggest these nutrients may play a role in inhibiting cancer development, offering potential for dietary modification to reduce cancer risk.
Healthy diet associated with lower risk of cataracts in women
Women who follow a balanced diet rich in essential vitamins and minerals have a lower risk of developing nuclear cataracts. A study of 1,808 women found that healthy diets, which reflect adherence to US dietary guidelines, are more strongly related to the occurrence of nuclear cataracts than other modifiable risk factors.
Replacing white rice with brown rice or other whole grains may reduce diabetes risk
Eating five or more servings of white rice per week was associated with an increased risk of type 2 diabetes. Replacing it with brown rice or other whole grains lowered the risk by 16% and 36% respectively.
SourceHarvard T.H. Chan School of Public Health·JournalArchives of Internal Medicine·DateJun 14, 2010
Burger diet boosts kids' asthma and wheeze risk
A large international study found that a burger diet may boost children's risk of asthma and wheeze, particularly in developed nations. Conversely, a Mediterranean diet rich in fruits, vegetables, and fish appears to reduce this risk. The study, published in Thorax, analyzed data from over 50,000 children aged 8-12 from 20 countries.
TV food advertisements promote imbalanced diets
A new study finds that TV food advertisements promote imbalanced diets, with excessive sugars and fat, but inadequate nutrients like fruits and vegetables. The researchers analyzed 96 hours of TV programming and found that the advertised foods fail to meet nutritional guidelines in every food group except grains.
Pistachios offer multiple benefits
Researchers found that eating pistachios increases blood serum levels of lutein, beta-carotene, and gamma-tocopherol. These antioxidants may help lower oxidized LDL concentrations, which can contribute to inflammation and plaque buildup inside blood vessels.
Many pregnant women not getting enough vitamin D
A recent study reveals that seven out of ten pregnant women in the United States have insufficient vitamin D levels. Prenatal vitamins may not be enough to meet the needs of all women, particularly those with darker skin or living in regions with limited sunlight during winter months.
SourceMassachusetts General Hospital·JournalAmerican Journal of Obstetrics and Gynecology·DateMay 11, 2010
Whole grain, bran intake associated with lower risk of death in diabetic women
Women with type 2 diabetes who consumed more whole grains and bran had a lower risk of death from cardiovascular disease and all causes. The study found that high bran intake reduced the risk by 35% for CVD mortality and 28% for overall mortality.
Eating nuts associated with improvements in cholesterol levels
A pooled analysis of 25 trials found that consuming an average of 67 grams of nuts per day resulted in a 5.1% reduction in total cholesterol, 7.4% decrease in LDL-cholesterol, and 8.3% change in HDL-cholesterol levels.
Health benefits of wheat can be improved by plant breeding
Researchers have identified genetic markers that can enhance wheat varieties with improved nutritional content, particularly in exotic germplasm. The HEALTHGRAIN project has developed new tools for plant breeders to exploit this variation, leading to the creation of new wheat varieties with enhanced health benefits.
Novel processing technologies developed for extending use of oats in gluten-free diet
Researchers developed novel processing technologies to improve oat-based foods, focusing on wholegrain flours and specific varieties for better bread quality. These technologies enhance the nutritional attributes of oats, particularly fiber and beta-glucan content, while also addressing visco-elastic properties and starch gelatinization.
High doses of antioxidant supplements induce stem cell genetic abnormalities
A new study from Cedars-Sinai Heart Institute found that high doses of antioxidant nutritional supplements can induce stem cell genetic abnormalities, potentially leading to cancer. Researchers discovered this danger zone when seeking a way to multiply human cardiac stem cells.
Natural S-Equol suggested as critical component in SE5-OH for reducing menopausal hot flushes
SE5-OH containing natural S-equol significantly reduced frequency of hot flushes in postmenopausal women. The compound had no effect on reproductive hormones E2 and FSH, suggesting its potential as a critical component in reducing menopausal symptoms.
Safety and influence on hormones and PSA examined in men taking novel soy germ-based dietary supplement, SE5-OH containing Natural S-equol
A new study examines the safety and tolerance of SE5-OH containing Natural S-equol in healthy adult Japanese men, with results showing normal hormone levels and PSA levels. The supplement appears to be well-tolerated, but further studies are needed to confirm its effects on prostate health.
First case of animals making their own carotene
Researchers discovered that aphids can produce carotenoids, essential nutrients crucial for vision, skin health, and bone growth. The yellowish-green aphid strain produced carotenoids by acquiring a fungal gene through lateral transfer, challenging conventional wisdom on animal nutrient production.
B vitamin therapy linked with decline in kidney function for some kidney disease patients
A randomized trial found that high-dose B-vitamin therapy accelerated kidney function decline and increased cardiovascular events in patients with type 1 or 2 diabetes. The study suggests that B-vitamin therapy may not be an effective treatment for slowing disease progression, and potentially poses risks for these patients.
Drinking 100 percent fruit juice is associated with improved diet quality in children
Children and teens who drink 100 percent fruit juice have higher intakes of vitamin C, potassium, and magnesium compared to non-consumers. Higher intake of fruit juice is also associated with increased consumption of whole fruits and whole grains.
The billions that bug us: A genomic view of humans and their microbes
Recent advances in microbial genomics have enabled researchers to study the human microbiome, revealing its essential role in digestion and immune system development. The Human Microbiome Project aims to optimize the beneficial effects of microbiota for each individual, improving health outcomes.
How red wine may shield brain from stroke damage
Researchers at Johns Hopkins found that resveratrol increases levels of an enzyme shielding nerve cells in the brain from damage, protecting against ischemic stroke. The study suggests that moderate wine consumption may have a lower incidence of cardiovascular disease.
Vitamin and calcium supplements may reduce breast cancer risk
Researchers found that vitamin supplements reduced breast cancer risk by about 30 percent, while calcium supplements reduced it by 40 percent. Calcium supplements lost their protective effect once DNA repair capacity was accounted for.
Vitamin C and E supplements do not reduce risk for blood pressure disorders of pregnancy
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.
SourceNIH/Eunice Kennedy Shriver National Institute of Child Health and Human Development·JournalNew England Journal of Medicine·DateApr 7, 2010
Novel soy germ-based dietary supplement, SE5-OH containing natural S-Equol, examined for safety and influence on hormones in pre- and post-menopausal women
Two clinical trials found SE5-OH with Natural S-equol to be safe and well-tolerated in both pre- and post-menopausal women, with no significant impact on reproductive hormones or menstrual cycle length. The supplement showed promise in reducing hot flashes in post-menopausal women.
Vital role for bacteria in climate-change gas cycle
Isoprene-degrading bacteria discovered near coastal zones, improving models of climate change and environmental factors. These microbes also break down alkanes, potentially aiding oil-degrading survival between spills.
Healthy food makes consumers feel hungrier when choices are limited
A recent study by Stacey Finkelstein and Ayelet Fishbach found that individuals who choose healthy food options feel hungrier if there are no other choices available. The researchers also discovered that this effect is not present when consumers have the freedom to make their own choices.
New lentil being readied for market
The US Department of Agriculture has developed a new lentil variety called Essex, which boasts high seed yields and nitrogen-fixing properties. This development is expected to enhance the nutritional value of lentils for consumers while also improving soil fertility for subsequent wheat crops.
SourceUnited States Department of Agriculture - Research, Education and Economics·JournalJournal of Plant Registrations·DateMar 16, 2010
New study shows teens who drink 100 percent fruit juice have more nutritious diets overall
A new study published in the American Journal of Health Promotion shows that teenagers who consume 100% fruit juice have a more nutrient-dense diet compared to non-consumers. The study found lower intakes of total dietary fat and saturated fat, as well as higher intakes of key nutrients like Vitamins C and B6, folate, potassium, and iron.
Bacterial balance that keeps us healthy
Researchers at EMBL discover a reference gene set for the human gut microbiome, cataloging 3.3 million microbial genes and shedding light on their role in maintaining health. This breakthrough enables non-invasive stool samples to be used as a measure of health, potentially leading to new treatments.
Hormone replacement therapy linked to increased lung cancer risk
A new study published in the Journal of Clinical Oncology found that women taking estrogen plus progestin hormone replacement therapy for 10 or more years have a 50% increased risk of developing lung cancer compared to non-users. The study also suggests that duration of use is associated with an advanced stage of cancer at diagnosis.
Supermarket lighting enhances nutrient level of fresh spinach
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%
Vitamins stored in bathrooms, kitchens may become less effective
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.
Pan-frying meat with gas may be worse than electricity for raising cancer risk
Researchers found that frying meat on a gas hob produces higher levels of potentially harmful polycyclic aromatic hydrocarbons (PAHs), mutagenic aldehydes, and particulate matter compared to electric hobs. Cooking fumes from vegetable oils and lard also contain fine and ultrafine particles.
MSU researcher linking breast cancer patients with alternative therapies
A Michigan State University researcher is creating a support intervention to help women in treatment for breast cancer identify effective alternative therapies. The study found that 57% of women use complementary and alternative medicines, and those who are sicker are more likely to use multiple therapies.
Herbal medicines can be lethal, pathologist warns
A University of Adelaide pathologist has sounded a warning about the dangers of herbal medicines, which can cause serious illnesses, exacerbate pre-existing health problems, or result in death if taken in excess or combined with prescription drugs. The study analyzed 251 Asian herbal products and found high levels of toxic substances.
Heart patients using herbal remedies may be at heightened risk of dangerous drug interactions
A review article highlights the risks of herbal supplements interacting with heart medications, posing a significant threat to elderly patients. The authors emphasize the need for greater awareness and scientific scrutiny to ensure safe use and reduce harm among patients with heart disease.
SourceAmerican College of Cardiology·JournalJournal of the American College of Cardiology·DateFeb 1, 2010
Don't forget to eat your greens
A recent study found that chlorophyll and chlorophyllin can reverse the effects of aflatoxin poisoning by limiting its bioavailability. The research, led by DOE/Lawrence Livermore National Laboratory scientists, suggests that consuming greens may be a way to prevent long-term exposure to carcinogenic mycotoxins.
Scientists using X-ray vision to produce more nutritious flour
Researchers are exploring ways to increase iron and zinc quantities in white flour using high-intensity x-rays. This approach aims to develop nutritious grain varieties that can help address global dietary deficiencies.
New approach to fighting Alzheimer's shows potential in clinical trial
A combination of nutrients, including uridine, choline, and DHA, has shown promise in improving verbal memory in patients with mild Alzheimer's disease. The study found that 40% of treated patients improved performance in a test of verbal memory, while 24% of control subjects showed improvement.
Update on vitamins and diabetic retinopathy; ethnic norms for preschoolers' eyesight
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.
Rice scientists divide and conquer
Researchers have discovered a way to visualize iron-sulfur clusters in living cells using a custom protein tag, enabling analysis of diseases involving these metalloclusters. This technique has high potential for helping find real treatments for diseases such as Friedreich's ataxia and myopathy.
Marketing a 'spoonful of sugar'
A new study by Tel Aviv University offers a simple formula for increasing compliance in health products. By providing consumers with a small immediate benefit, companies can encourage long-term use of products that have significant advantages.
University of Texas Southwestern Medical Center researcher wins Avanti Award in lipids
David W. Russell has received the 2010 Avanti Award in Lipids for his groundbreaking work on cholesterol metabolism and oxysterol function. His laboratory has elucidated the enzymatic pathways responsible for cholesterol breakdown and identified genes involved in related diseases.
ADA releases updated position paper on nutrient supplementation
The American Dietetic Association recommends wisely choosing a wide variety of nutrient-rich foods to promote optimal health. While supplements can help fill dietary gaps, registered dietitians are essential in educating consumers on safe selection and use of nutrients.
SourceAmerican Dietetic Association·JournalJournal of the American Dietetic Association·DateDec 8, 2009
Antioxidant compound reduced incidence of colorectal metachronous adenomas
A selenium-based antioxidant compound supplementation decreased the risk of developing new colorectal metachronous adenomas in individuals who previously had polyps removed. The study found a 40% reduction in metachronous adenoma incidence after 13 years of follow-up.
How nutrition affects healthy aging
A new study from the Max Planck Institute for Biology of Ageing suggests that a combination of proteins is crucial for healthy aging, not reducing overall calorie intake. Researchers found that manipulating the diet of female fruit flies showed varying results depending on the type and amount of amino acids consumed.
Balancing protein intake, not cutting calories, may be key to long life
A new study funded by the Wellcome Trust suggests that getting the correct balance of proteins in our diet may be more important for healthy ageing than reducing calories. Researchers found that varying the amount of amino acids in a diet can affect lifespan and fertility, with certain amino acids being crucial to maximising both.
Treatment with folic acid, vitamin B12 associated with increased risk of cancer, death
A Norwegian study found that folic acid and vitamin B12 treatment was associated with a 21% increased risk of cancer diagnosis and a 38% increased risk of cancer-related death in patients with ischemic heart disease. The treatment also showed an increased risk of lung cancer incidence.
Nanoparticles used in common household items caused genetic damage in mice
A study by UCLA's Jonsson Comprehensive Cancer Center found TiO2 nanoparticles in cosmetics, sunscreen, and other products cause DNA breaks, chromosomal damage, and inflammation in mice. The researchers suggest limiting nanoparticle exposure to prevent potential health hazards.