Gordonoff, Fluoridation and Deiodination
Early warnings about fluoridation
Anton “Toni(o)” Gordonoff was a Swiss professor of pharmacology and toxicology at the University of Bern. He was head of the Department of Pharmacology at the School of Medicine.
Between 1951 and 1964, Gordonoff published extensively on his research on fluoride effects on thyroid hormone metabolism.
In 1953, Prof. Gordonoff spoke at the 19th International Physiological Congress in Montreal, Canada, warning about fluoridation and his findings on the effects of fluoride on thyroid disease.
The Canadian Press (CP) reported about this the following day.
September 5, 1953
FLUORIDATION RECEIVES SETBACK
Montreal (CP) - Fluoridation which has won wide acceptance as a preventative of tooth decay in children, received a setback Friday at the 19th International Physiological Congress.
Dr. T. Gordonoff of Bern, Switzerland said fluoridation of drinking water tends to aggravate thyroid conditions in people afflicted with Goiter.
Dr. Gordonoff said he has already recommended to Swiss health authorities that they stop fluoridation. He said he bases his findings on extensive experiments with rats having known thyroid conditions.
The experiments showed that the rats' thyroid metabolism decreased anywhere from 30 to 40 per cent after being subjected to fluoridated water.
In 1956, Gordonoff and Prof. Walter Minder were the first to report that fluoride interfered with the process of deiodination, thus disturbing thyroid hormone metabolism (Minder & Gordonoff, 1956).
Numerous pro-fluoridationists criticized and ridiculed the research by Gordonoff and Minder, including Hans Bürgi in his highly questionable 1984 literature review of fluoride effects on thyroid function, and colleague Victor Demole who wrote the deceitful chapter of fluoride effects on the thyroid in the 1970 WHO monograph.
[Both, Bürgi and Demole, had been presidents of the Swiss Fluoride and Iodine Commission → responsible for salt fluoridation. Demole had also testified on behalf of aluminum companies in fluoride pollution lawsuits.]
Knowledge in 2022
Fluoride effects on deiodination are now firmly established. rT3, a product of D3 deiodinase activity, is used as a biomarker in fluoride poisoning (Lin et al., 1991, 1992; Shashi & Singla, 2013 a,b).
REFERENCES
Bürgi H, Siebenhüner L, Miloni E - “Fluorine and thyroid gland function: a review of the literature” Klin Wochenschr 62(12):564-9 (1984)
https://pubmed.ncbi.nlm.nih.gov/6384648/
Demole V - “Toxic effects on the thyroid” In: Fluorides and Human Health, Geneva, World Health Organization, pp. 255-262 (WHO Monograph Series No. 59) (1970)
https://truthdecay.net/who-demole-1970/
Galt Reporter - Galt, Ontario, Canada/Medicine Hat News, Medicine Hat, Alberta, Canada (1953)
https://newspaperarchive.com/medicine-hat-news-sep-05-1953-p-1/
Lin Fa-Fu, Aihaiti, Zhao Hong-Xin, Lin Jin, Jiang Ji-Yong, Maimaiti, Aiken - "High-fluoride and Low-iodine Environment and Subclinical Cretinism in Xinjiang" Endem Dis Bul 6(2):62-67 (1991)
English Translation in: ICCIDD Newsletter, Volume 7 Number 3 (August 1991) https://poisonfluoride.com/dir/wp-content/uploads/Lin-FF-1991.pdf https://poisonfluoride.com/pfpc/lin-1991.pdf
Lin Jin, Lin Fafu, Zhao Hongxin, Jiang Jiyong, Xu Xunfeng - "A study on the relationship between serum rT3 and environmental iodine or fluoride levels" Endemic Disease Bulletin (3):68-70 (1992)
http://www.nmglib.com:8901/article/detail.aspx?id=720441
Minder W, Gordonoff T - "An antagonism between iodine and fluorine" Archives Internationales de Pharmacodynamie et de Therapie 107:374-381 (1956)
Shashi A, Singla S - "Syndrome of Low Triiodothyroinine in Chronic Fluorosis" International Journal of Basic and Applied Medical Sciences 3(1):152-160 (2013a)
Shashi A, Singla S - "Clinical and Biochemical Profile of Deiodinase Enzymes and Thyroid Function Hormones in Patients of Fluorosis" Australian Journal of Basic and Applied Sciences 7(4):100-107 (2013b)