NCBI ROFL: When your sweat turns red, maybe it's time to eat less food coloring.

By ncbi rofl | September 14, 2010 7:00 pm

3703494528_84ec9b33b2The case of the red lingerie – chromhidrosis revisited.

“Chromhidrosis or the production of coloured sweat is a rare clinical finding. A 26-year-old female presented with marked pink staining of her uniform and lingerie. Extractions of clothing, skin surface samples, eccrine sebum, urine and a fast food product were spectrophotometrically analysed to identify the pink staining pigment. Three water-soluble colouring agents have been identified. An eccrine route of excretion probably produced chromhidrosis. An overview is presented.”

Bonus quote from the full text: “A healthy 26-year-old nursing sister consulted our department with continuous pink to bright red staining of her white uniform following an 8- to 10-hour workday. This affliction has been noticeable for some 5 months after her annual leave. She had an uneventful previous medical history and denied taking any drugs, health foods or vitamin supplements in the 6 months prior to her consultation… A follow-up in-depth history produced confirmation of a 6-month fetish for a specific brand of tomato-flavoured prepacked fast foods. The patient admitted indulging in 500–2,500 g/week [1.1-5.5 pounds] over an extended period…It would therefore seem that a pink lipid- and water-soluble agent obtained from prepacked food was being excreted via the renal and integumental systems.”

Bonus figure:

Fig. 1. The patient’s underclothing with pinkish discoloration in the elastic band regions.

Fig. 1. The patient’s underclothing with pinkish discoloration in the elastic band regions.


Photo: flickr/me and the sysop

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Discoblog: NCBI ROFL: Attack of the belly button lint!

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NCBI ROFL is the brainchild of two Molecular and Cell Biology graduate students at UC Berkeley and features real research articles from the PubMed database (which is housed by the National Center for Biotechnology information, aka NCBI) that they find amusing (ROFL is a commonly-used internet acronym for "rolling on the floor, laughing").Follow us on twitter: @ncbirofl


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