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Diana, princess of Wales and Rosacea (Lady Diana)

Lady Diana (1961-1997) is one of the most famous British personalities and was the Princess of Wales when she got married to Prince Charles in 1981. Since that time, she was closely (too closely) followed by the media until her death in Paris 16 years later. She was often described as a shy person and…

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George Orwell and Stevens-Johnson Syndrome

George Orwell (Eric Blair; 1903-1950) was one of the most influential of English writers in the 20th century. He wrote famous books such as 1984 (written in 1948): this masterpiece shows what totalitarian rule can be and even nowadays it displays how people can be manipulated to maintain society as it is. He was a…

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Richard Nixon and Hyperhidrosis

Richard Nixon (1913-1994) served as the President of the United States from 1969 to 1974, when he resigned because of the Watergate scandal. It is interesting to see that most people see him as a tense figure in debates, especially the one he had against Kennedy in 1960 (which he lost): in the video above…

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Psoriasis-induced by Injected anti-TNF drugs (Paradoxical adverse, reactions): Oral non-TNF targeted therapies ?

The development of psoriasis has been observed in anti-TNF therapies for the treatment of Rheumatoid Arthritis, Ankylosing Spondylitis and Behcet’s disease. Its incidence is estimated to occur in around  5% of cases and is more frequent in females than males. It occurs 5 days to several months after the initiation of treatment in patients in…

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Rhododenol (Rhododendrol) – induced toxicity appears to happen at higher concentrations and the protective mechanism it triggers

Not all consumers developed white blotching after applying rhododendrol (rhododenol)-containing products All treatment areas didn’t necessarily develop white blotchingThe authors performed cell cultures on normal human melanocytes Results high doses (1500micromol and 3000micromol) had a cytotoxic effect apoptosis was observed at 3000micromol (through activation of caspase 3) low doses of 300-900micromol inhibited melanogenesis (downregulation of…

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Rhododenol-induced cyotoxicity: proposed mechanism of action

Rhododenol (Rhododendrol) is phenolic compound known to induce leucoderma. Another similar compound causing this is hydroquinone monomethyl ether The authors did a study in human melanoma B16f10 cells: Rhododenol 4, 4-hydroxyphenyl (R44HPB) 2-butanol increased The ROS (Radical Oxygen Species) H2O2 in B16f10cells The increase in the ROS H2O2 occurs when R44HPB is oxydized into quinone-tyrosinase.…

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Rhododenol (Rhododendrol)-induced leukoderma: an objective way to ascertain normalization of the skin

This study suggests an objective way to follow-up of rhododenol-induced vitiligo by skin absorption spectrum analysis A word on Rhododenol (Rhododendrol): Rhododendrol (Rhododenol) is is derived from the white birch tree it inhibits tyrosinase activity and melanin synthesis Vitiligo-like lesions were observed and in march 2014, 14000 cases were reported in Japan alone In this…

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