A North Carolina ecological study correlated groundwater manganese with 28 percent more colon cancer deaths and 26 percent more lung cancer deaths at county level, while airborne manganese tracked with fewer total, breast and lung cancer deaths.
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Minerals
Calcium, iron, magnesium, selenium, zinc and other minerals in the diet.
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Minerals
Is calcium supplementation effective?
Dr. Robert Thompson argues calcium supplements create a mineral imbalance that can lower bone density. A Women's Health Initiative study of 36,282 women found only a 1 percent hip gain; lead author Elizabeth Nabel still recommends continuing, while others cite kidney stone risk.
Minerals
Selenium: The mineral miracle
The piece champions selenium, citing the journal Disease Prevention and Treatment on its action against several cancers and a 1996 University of Arizona study in which 1,300 cancer patients taking 200 mg daily for seven years were 42% less likely to have a recurrence.
Minerals
CSPI: Restaurants serve meals high in salt
CSPI told the Senate Finance Committee that 85 of 102 meals it checked at 17 chain restaurants carried more than a day's worth of salt, some nearly four days' worth. Red Lobster's Admirals Feast topped the list at 7,106 mg, against a recommended 2,300 mg daily limit.
Minerals
Selenium strikes powerful blow to skin cancer
A study of 458 Australians in Cancer Epidemiology Biomarkers and Prevention linked higher blood selenium to fewer cases of basal cell and squamous cell carcinoma, a roughly 60 percent reduction, while finding no link between vitamin E levels and reduced carcinoma risk.
Minerals
Prenatal iron deficiency may delay brain maturation in preemies
In a study of 80 infants followed past 18 months, University of Rochester researchers found premature babies with low cord blood iron had abnormal maturation of the auditory nervous system. Dr. Sanjiv Amin says the delay may have implications for later language development.
Minerals
Iron: the new cancer killer?
German Research Center scientists report that flooding lymphoma cells with iron sets off free radicals and oxidative stress severe enough to kill them. With Mannheim University Hospitals they studied the approach in Sezary's disease and in lymphomas that resist other treatment.
Minerals
Zinc Could Saves Lives of Children With Diarrhea
A Cochrane review covering more than 6,000 children found strong evidence that zinc supplementation helps children with diarrhea in developing countries, but only in infants over six months old. Zinc shortened both acute and persistent diarrhea, the lead investigator said.
Minerals
Calcium may be the key to understanding Alzheimer's disease
Penn researchers report in Neuron that mutations in presenilin 1 and 2, linked to inherited early-onset Alzheimer's, disrupt calcium flow in neurons through the InsP3 receptor channel. Cells with mutant PS1 also processed more amyloid beta, suggesting targets for new therapies.
Minerals
Calcium alone does not reduce hip fracture risk
Bess Dawson-Hughes and colleagues pooled studies covering 170,991 women and 68,606 men and found calcium intake was not appreciably associated with hip fracture risk in either sex, even though calcium is still commonly recommended to prevent fractures.
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