Summary
The fluorine content of Japanese foods was determined and the daily intake of fluorine by the individual from the rural diet in the central Japan was estimated with different crop years. In 1958 the fluorine intake of a person was 4.38 mg daily in winter, and in 1965 was 11.13 mg. This increase was due to the yearly increase of the fluorine content of Japanese foods. The contents of fluorine of rice and ”miso”, which are the mainstay of the diet in Japan, showed geographical correlations with human mortality with gastric cancer.
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Cancer and Other Outcomes After Surgery With Fluoridated Anesthesia
To the Editor I read the article by Perry et al1 with interest. Several other molecular mechanisms and factors may also play a role in how anesthesia may influence cancer outcomes. First, it is important to distinguish the difference between certain fluoridated anesthesia, such as sevoflurane, from their contribution to
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Fluoride tooth paste: a cause of perioral dermatitis
Since its description in 1957 by Frumess and Lewis as a “light-sensitive seborrheid,” perioral dermatitis (PD) has continued to be a perplexing entity. (1) Many causes have been postulated, including sunlight sensitivity, birth control pills, emotional stress, fluorinated steroid creams, Candida albicans, and rosacea. We have gathered clinical and historical data implicating
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Fluoride in tea from Shandong Province, China and exposure assessment.
In this study fluoride in 170 tea samples from Shandong province (China) was determined using a selective ion electrode. The fluoride concentrations ranged from 31.2 to 338 mg/kg with an average of 119 mg/kg. The mean fluoride concentrations were 164, 121, 98.7 and 96.8 mg/kg, which corresponded to Pu'erh tea,
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Slaying sacred cows: is it time to pull the plug on water fluoridation?
Water fluoridation continues to be a contentious public health policy. Recent moves to introduce schemes in England raise important questions about the use of evidence in public policy. Of particular concern is how evidence is used for public health policy-making purposes. This article reviews some of the key debates about
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Fluoride content of soft drinks, nectars, juices, juice drinks, concentrates, teas and infusions marketed in Portugal
A potentiometric method using a fluoride combination ion-selective electrode was validated and used to analyse 183 samples, including soft drinks, juices, nectars, juice drinks, concentrates, teas and infusions marketed in Portugal. The fluoride levels were higher in extract-based soft drinks, juice drinks and juice, with fluoride values of 0.86 ± 0.35, 0.40 ± 0.24 and 0.37
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A Critique of Gelberg's Study on Fluoride/Osteosarcoma in New York
The case-control study by Gelberg, published first as a PhD dissertation and then later in two peer-reviewed journals, may represent the most substantive study on fluoride/osteosarcoma previous to Bassin’s 2001 analysis. In assessing Gelberg’s data, we were at first struck by the existence of several notable errors in both the thesis and papers. While these errors do raise questions about the study, our primary concern with Gelberg’s work relates to the methods she used to analyze her data.
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Fluoride's Mutagenicity: The "Oral Health Research Institute's" Studies
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Fluoride & Liver Cancers in NTP Bioassay
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Fluoride's Mutagenicity: In vitro Studies
According to the National Toxicology Program, "the preponderance of evidence" from laboratory "in vitro" studies indicate that fluoride is a mutagenic compound. Many substances which are mutagens, are also carcinogens (i.e. they can cause cancer). As is typical for in vitro studies, the concentrations of fluoride that have generally been tested
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