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Daily Archives for: November 17th, 2008

Randomized trials have shown, unexpectedly, that supplementation with selenium or vitamin E is associated with a reduction of prostate cancer risk. We assess whether a supplementation with low doses of antioxidant vitamins and minerals could reduce the occurrence of prostate cancer and influence biochemical markers. The SU.VI.MAX trial comprised 5,141 men randomized to take either a placebo or a supplementation with nutritional doses of vitamin C,

We evaluated the color vision of mercury-contaminated patients and investigated possible retinal origins of losses using electroretinography. Participants were retired workers from a fluorescent lamp industry diagnosed with mercury contamination (n = 43) and age-matched controls (n = 21). Color discrimination was assessed with the Cambridge Colour Test (CCT). Retinal function was evaluated by using the ISCEV protocol for full-field electroretinography (full-field ERG),

BACKGROUND AND OBJECTIVES: To study the mortality from cardiovascular diseases after long-term exposure to inorganic mercury.

POPULATION AND METHOD: 3,998 workers exposed to mercury in Minas de Almadén y Arrayanes S.A. were studied. The follow-up period was a century, since 1895 to 1994. The study was completed assessing the vital status and the basic cause of death,

Amalgam, which has been in use in dentistry for 150 years, consists of 50% elemental mercury and a mixture of silver, tin, copper and zinc. Minute amounts of mercury vapour are released continuously from amalgam. Amalgam contributes substantially to human mercury load. Mercury accumulates in some organs, particulary in the brain, where it can bind to protein more tightly than other heavy metals (e.g.

The first well-documented outbreak of acute methyl mercury (MeHg) poisoning by consumption of contaminated fish occurred in Minamata, Japan, in 1953. The clinical picture was officially recognized and called Minamata disease (MD) in 1956. However, 50 years later there are still arguments about the definition of MD in terms of clinical symptoms and extent of lesions.

The incidence of neurodegenerative disease like Parkinson's disease and Alzheimer's disease (AD) increases dramatically with age; only a small percentage is directly related to familial forms. The etiology of the most abundant, sporadic forms is complex and multifactorial, involving both genetic and environmental factors. Several environmental pollutants have been associated with neurodegenerative disorders. The present article focuses on results obtained in experimental neurotoxicology studies that indicate a potential pathogenic role of lead and mercury in the development of neurodegenerative diseases.

The relationship between prenatal exposure to methyl mercury and neurologic and developmental abnormalities was ascertained among 234 Cree Indian children aged 12 to 30 months from four northern Quebec communities. A pedlatrlc neurologist, "blinded" to the children's level of exposure, assessed neurologic, physical, mental, and psychosoclal development Methyl mercury exposure was estimated from maternal hair segments representing the period of pregnancy.

Increased cardiovascular risk after mercury exposure has been described, but the underlying mechanisms are not well explored. We analyzed the effects of chronic exposure to low mercury concentrations on endothelium-dependent responses in aorta and mesenteric resistance arteries (MRA). Wistar rats were treated with mercury chloride (1st dose 4.6 microg/kg, subsequent dose 0.07 microg.kg(-1).day(-1) im, 30 days) or vehicle.

There is a risk of severe neurological disease, nephropathy and cutaneous complications during mercury poisoning. We report a case of acute generalized exanthematous pustulosis, associated with histologically confirmed acute cytolytic hepatitis without liver failure, after application of a topical home-made ointment containing mercury. The patient was previously sensitized with mercurothiolate. A high level of mercury was found in the blood (68mug/L,

OBJECTIVES: Thimerosal is a mercurial preservative that was widely used in multidose vaccine vials in the United States and Europe until 2001 and continues to be used in many countries throughout the world. We conducted a pharmacokinetic study to assess blood levels and elimination of ethyl mercury after vaccination of infants with thimerosal-containing vaccines.