Middle-aged mice given ubiquinol, the reduced form of CoQ10, for 6 or 14 months showed slower age-related changes in liver, heart, brain and kidney than mice given ubiquinone. Researchers credit better bioavailability and a stronger effect on gene expression.
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Page 26 of 41
Vitamins
Research on vitamins A through K, deficiencies and supplementation.
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Vitamins
Calcium/vitamin d supplements may boost risk of urinary tract stones
In the Women's Health Initiative, 36,282 postmenopausal women took 500 mg of calcium carbonate plus 200 IU of vitamin D3 twice daily or a placebo for seven years. The supplement group was 17% more likely to report urinary tract stones, 449 cases against 381.
Vitamins
Fortifying corn masa flour with folic acid could prevent birth defects (PR)
A March of Dimes commentary argues that fortifying corn masa flour with folic acid could prevent neural tube defects among Hispanics, who have the highest rate. Fortifying cereal grains since 1998 cut such defects by nearly a third, yet about 3,000 US pregnancies a year are affected.
Vitamins
Vitamin K may help men with low sexual hormone
Male Wistar rats fed a vitamin K-free diet for 35 days had lower testicular testosterone, and their serum testosterone dropped further after researchers triggered inflammation with lipopolysaccharide. The authors suggest testicular vitamin K helps hold testosterone steady.
Vitamins
Folate: What You Need to Know
Isaac Eliaz explains that folate is the natural form found in leafy greens, legumes, bananas and eggs while folic acid is synthetic, and that the US Public Health Service advises 400 mcg a day for women of childbearing age because deficiency is linked to neural tube defects.
Vitamins
Low serum potassium may boost diabetes risk
Following 2,716 African American and 9,493 white adults for nine years, researchers linked serum potassium below 4.0 mEq/L to a 128% higher diabetes risk in African Americans and 53% in whites. Whether potassium supplements would lower risk remains unknown.
Vitamins
Vitamin D cuts breast cancer risk
Laura Anderson of Cancer Care Ontario and colleagues report that women who spent 21 or more hours a week outdoors as adolescents were 29 percent less likely to develop breast cancer than those spending six hours, with reductions of 26 to 50 percent for time outdoors at later ages.
Vitamins
Increased folic acid from supplements, fortified foods not likely to affect B12 deficiency (PR)
Researchers at NIH and five other institutions report that folic acid from supplements or fortified grain products is unlikely to worsen problems tied to low vitamin B12. Earlier studies had found more anemia and blood abnormalities in people with low B12 and high folate.
Vitamins
Girls Given This Vitamin at Birth May be 41% More Likely to Die
The CDC and a group of 36 scientists are beginning multi-year studies of vaccine safety and the “nonspecific effects” of vaccines in low-income countries. Mercola argues they are ignoring 30 years of Guinea-Bissau records, some referring to deaths in conjunction with DTP and MMR.
Vitamins
Vitamin C, Omega 3 fatty acids cut death risk from cardiovascular disease
Following 58,730 Japanese adults for 16.5 years, researchers found women with the highest vitamin C intake were 30% less likely to die of stroke and 37% less likely to die of coronary heart disease. The association was not significant in men, and vitamins A and E showed none.
Vitamins
Free Autism Clinic - email from Vitamin D Council
An email from the Vitamin D Council announcing a free clinic for children with autism, with free assessments, blood tests and vitamin D, funded by memberships and donations. It appeals for money to cover staff, a website contract and a planned UCSF study on autism and vitamin D.
Vitamins
Vitamin D may help cut risk of death from prostate cancer
Among 1,822 men with prostate cancer, those whose pre-diagnosis 25(OH)D was in the lowest quartile were 59 percent more likely to die of the disease and 22 percent more likely to die of any cause than men with the highest levels. The active form 1,25(OH)2D showed no link.
Vitamins
This vitamin helps prevent Alzheimer's disease
Mice bred to model Alzheimer's and given vitamin C solutions for six months showed less oxidative brain damage, fewer soluble amyloid-beta oligomers and slower behavioural decline. Vitamin C did not affect brain plaque deposition.
Vitamins
Infantile pneumonia
The Vitamin D Council's John Cannell flags a Pediatrics study in which infants born to women with the lowest cord-blood vitamin D levels were six times more likely to develop RSV bronchiolitis in their first year. He argues the 600 IU/day advice for pregnancy is inadequate.
Vitamins
Low intake of vitamin B6 linked with irritable bowel syndrome symptoms
In a small Norwegian study, 17 people with irritable bowel syndrome logged food and symptoms for a week. Vitamin B6 was the only nutrient significantly tied to the symptom score, with lower intake accompanying more severe symptoms; median intake was 0.9 mg a day.
Vitamins
RSV and vitamin D link in infants
Dutch researchers measured vitamin D in cord blood from 156 newborns and found 54 percent had insufficient levels. Infants with the lowest concentrations had six times the risk of developing an RSV lower respiratory tract infection in their first year as those with the highest.
Vitamins
Vitamin D fights prostate cancer - new study
Among 841 men with prostate cancer, those whose tumors expressed vitamin D receptors most highly had lower PSA, Gleason score and stage, and were 83 percent less likely to have lethal disease. Blood vitamin D before diagnosis showed no such link.
Vitamins
Anemia and vitamin D link in children
Across blood samples from more than 9,400 children aged 2 to 18, lower vitamin D went with lower hemoglobin: those below 20 ng/ml had a 50% higher risk of anemia, and each 1 ng/ml increase went with 3% lower risk. Researchers call the black-white difference a clue that needs further study.
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