Biology
porphyria
Term: porphyria
Literally meaning: ?state or disease characterised by purple hue?
Origin: Anc Greek
?????????/porphyroun(= deep red or marine shell Haustellum brandaris which used for extraction of ??????? dye
???/pyr(=fire)
+????/phyro(=stir)
+-??/-ia(=suffix denoting a state in feminine gender)
Coined/History
In 1889 by Dutch phycisian and Barend Joseph Stokvis (1834 ?1902) who observed the dark red urine, discovered that it contained porphyrins. Porphyrins had been described as a chemical entity in 1871 by the German chemist Felix Hoppe-Syeler, named for their purple hue .
Definition
Porphyrias are a group of inherited or acquired disorders caused by abnormalities in the chemical steps that lead to heme production affecting mainly skin and nervous system. Symptoms include blisters, itching, and swelling of skin when it is exposed to sunlight and also pain in the chest or abdomen, vomiting, and diarrhea or constipation.
CommentIn 1985 David Dolphin, a biochemist, suggested that the mythical vampires might have been people suffering with porphyria. He made his case by pointing out that porphyria victims are exceedingly sensitive to sunlight.
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Iodine (i)
Term: iodine (I)Literally meaning: ?pertaining to purple?Origin: Anc Greek???????/ioeides (=purple, violet) because of the color of elemental iodine vapor. [<???. 'é???? < /é??= violete (flower) Coined/History Iodine was discovered...
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Rhodopsin
Term: rhodopsinLiterally meaning: ?redish-purple visual ?Origin: Anc Greek?????/rodon(=rose) >????/rode(=rosebush) >???????/radanos(=soft, delicate, smooth)+??/ops(=sight, face, vision) Coined/HistoryRhodopsin named because of its redish-purple...
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Porphyra
Term: porphyraLiterally meaning: ?purple-red color?Origin: Anc Greek???/pyr(=fire) +????/phyro(=stir)Coined/HistoryGreek ?porphyra? (Latin, ? purpura?) was a very expensive dye in texts dated about 1600 BC. The use and large scale production of the dye...
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Cyanosis
Term: cyanosisOrigin: Anc Greek ???????/cyanous(=dark blue)- ????/-osis(=suffix denoting state or condition; eg "a disease state" CoinedThe term cyanosis was coined by BAUMES? Definition Cyanosis is the appearance of a blue or purple coloration...
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Blood --- Not Just For Vampires Anymore
?Nosferatu? was the first film (1922, directed by F.W. Murnau) made about the blood sucking undead. It followed the Stoker novel so closely that his estate sued and a court ordered all the copies destroyed. Only five survived, and were used to restore...
Biology