Rosacea, a common skin disease, can be caused by the presence of mite feces in the pores of the skin, reports the Journal of Medical Microbiology.
Rosacea (in Latin – rosacea) is a chronic disease of the facial skin affecting people in mature age (30 to 60 years old). The skin becomes rough, reddened, papules and pimples appear on the face, and blood vessels are clearly visible. Severe cases resemble acne. The eyes are irritated and the nose is red and bulbous like in caricatures of older people. The problem affects all races, from 5 to 20 percent of people worldwide – the US alone is home to 16 million.
Rosacea has been attributed, among other things, to drunkenness. Alcohol, like various types of stress, can trigger the onset of illness, but it also affects abstainers.
According to Kevin Kavanagh of the National University of Ireland in Maynooth, the cause of this unpleasant disease may be tiny eight-legged mites (Demodex), close relatives of spiders. They live in the pores of the skin and were considered innocent stowaways. They especially like the hair follicles of the eyebrows and eyelashes, and the oily pores of the nose. They colonize the skin of the face in adolescence. While we sleep, they fix themselves on our faces as they then crawl back into the pores. There they lay their eggs and die.
A healthy adult has 1-2 mites per square centimeter of facial skin, but with rosacea this number can be 10 times higher. Probably under stress, our tallow becomes a better food for mites, which triggers the symptoms of the disease.
Rosacea often clears up with antibiotics like teracycline – although it doesn’t work on mites. Kavanagh believes that rosacea is caused by reactions to the bacteria that live in mite feces.
The mites do not have an anus, so they cannot get rid of the faeces. They just keep getting bigger and bigger. After they die, they decompose and release the entire contents of the digestive tract. No wonder that when mites are abundant, the skin becomes irritated.
Kavanagh notes that only one bacteria in the mite’s digestive tract – Bacillus oleronius – is killed by acne-effective antibiotics, not by others. He said that 80 percent of people with the most common form of rosacea have immune cells in their blood that react strongly with two B. oleronius proteins, leading to the release of inflammation-triggering substances. Only 40 percent. people without acne experience this reaction.
See also: Atopic dermatitis (AD) – causes, symptoms, rules of care
The researcher is currently applying for funds to develop antibodies to bacterial proteins so that they can track their location and link them more closely to the disease, treatment against these proteins could prevent rosacea (PAP).
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