Dietary Thiamine Linked With Cognition
Dietary thiamine (vitamin B1) intake was linked with cognition in older adults, a longitudinal analysis in China suggested. Over a median follow-up of 5.9 years, cognitive decline risk was minimal at dietary thiamine intake levels of 0.60 to 1.00 mg/day, reported Xianhui Qin, MD, of Southern Medical University in Guangzhou, and co-authors. However, a J-shaped […]
How pre- and postnatal B-12 vitamins improve breast milk vitamin B-12 levels, which supports infant brain development
Babies and children need vitamins, including vitamin B-12, to help their brains and bodies develop and grow. Babies get B-12 from their mothers and can have low levels of B-12 if their mothers had low vitamin levels during pregnancy and breastfeeding. The vitamin B-12 levels of infants strongly depend on maternal levels. Adequacy of vitamin […]
Vitamin C Flops for Severe COVID-19
Intravenous vitamin C did little to increase days free of organ support in adult patients hospitalized with COVID-19, two harmonized clinical trials known as LOVIT-COVID and REMAP-CAP found. Among critically ill patients given vitamin C, the median number of organ-support free days was 7 versus 10 in the control group, with an adjusted OR of […]
Antioxidants stimulate blood flow in tumors
Vitamin C and other antioxidants stimulate the formation of new blood vessels in lung cancer tumours, a new study from Karolinska Institutet published in The Journal of Clinical Investigation shows. The discovery corroborates the idea that dietary supplements containing antioxidants can accelerate tumour growth and metastasis. “We’ve found that antioxidants activate a mechanism that causes […]
Do certain amino acids modify the risk of dementia linked to air pollution?
Higher levels of vitamin B-related amino acids may be linked to the risk of dementia associated with a certain type of air pollutants called particulate matter, according to a study published in the July 19, 2023, online issue of Neurology®, the medical journal of the American Academy of Neurology. The study does not prove that […]
Vitamin D for Cardiovascular Prevention Runs Into Another Wall
Monthly super-sized vitamin D supplements failed to significantly reduce major cardiovascular events in older adults, the Australian D-Health Trial found. Over up to 5 years of treatment, incident myocardial infarction (MI), stroke, and coronary revascularization turned up in 6% of the vitamin D group and 6.6% of the placebo group (HR 0.91, 95% CI 0.81-1.01), […]
Benefits of Parathyroidectomy Run Far Deeper Than PTH Normalization
SEATTLE — Parathyroidectomy helped reverse disrupted levels of inflammatory cytokines and vitamin D metabolites in patients with primary hyperparathyroidism (PHPT), a researcher suggested here. After 50 patients, newly diagnosed with PHPT, underwent parathyroidectomy, serum intact parathyroid hormone (PTH) levels returned to the normal range within 3 months (115.6±38.9 to 42.6±24.5 pg/mL, P<0.001), said Xiangbing Wang […]
Taking vitamin D could help prevent dementia: Taking vitamin D supplements may help ward off dementia, according to a new, large-scale study.
Taking vitamin D supplements may help ward off dementia, according to a new, large-scale study. Researchers at the University of Calgary’s Hotchkiss Brain Institute in Canada and the University of Exeter in the UK explored the relationship between vitamin D supplementation and dementia in more than 12,388 participants of the US National Alzheimer’s Coordinating Center, […]
Dementia Incidence Linked With Vitamin D Supplements
Vitamin D supplements were linked with lower dementia incidence and longer dementia-free survival, prospective data showed. In a sample of 12,000 older adults, exposure to vitamin D supplementation was associated with a 40% lower dementia incidence rate compared with no exposure (adjusted HR 0.60, 95% CI 0.55-0.65), reported Zahinoor Ismail, MD, of the University of […]
Can High-Dose Vitamin D Prevent Diabetes?
Daily higher-dose vitamin D supplementation may help stave off diabetes in an at-risk population, researchers reported. In a meta-analysis of three randomized clinical trials, vitamin D reduced the risk for type 2 diabetes by 15% in people with prediabetes (adjusted HR 0.85, 95% CI 0.75-0.96) in a model adjusted for age, gender, body mass index […]