Do mite avoidance measures affect mite and cat airborne allergens?

Carswell, F.; Oliver, J; Weeks, J

doi:10.1046/j.1365-2222.1999.00499.x

Cited by 21 publications

(16 citation statements)

References 21 publications

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“…However, these studies generally report that the concentration of Der p 1 in dust from mattresses and carpets in homes is much greater than the concentration of Der 2 (Der p 2 ? Der f 2 together) (Calvo et al 2005;Carswell et al 1999;Chen et al 2002;Su et al 2001;Tsay et al 2002). The relationship (ratio) between Der p 1 and Der p 2 found in our whole cultures is consistent with what is reported for dust samples taken from homes around the world.…”

Section: Discussionsupporting

confidence: 94%

Population growth and allergen accumulation of Dermatophagoides pteronyssinus cultured at 20 and 25°C

2010

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The house dust mites, Dermatophagoides pteronyssinus and D. farinae are cultured commercially and in research laboratories and material is harvested from these cultures to make extracts that are used for diagnosis, immunotherapy and research. Temperature and other climatic conditions can influence population growth rates, dynamics of allergen production, and the associated endotoxin, enzyme and protein levels of the mite material harvested from these cultures. Here we determined how temperature affected these parameters. Dermatophagoides pteronyssinus was cultured at 20 and 25 °C at 75% relative humidity, and at 2-week intervals the concentrations of mites, Der p 1 and Der p 2 allergens, endotoxin, and selected enzymes were determined. Mite density increased exponentially but growth rate and final population density were greater at 25 °C compared to 20 °C. The combined allergen (Der p 1 + Der p 2) concentrations accumulated in the cultures at about the same rate at both temperatures. However, individual Der p 1 and Der p 2 accumulation rates varied independently at the two temperatures. Der p 1 accumulated faster at 20 °C whereas Der p 2 accumulated faster at 25 °C. The amount of Der p 1 in whole cultures was greater than the amount of Der p 2. The concentration of allergen for washed mites harvested from the cultures was much less than for the whole cultures. Our study demonstrated that temperature is an important factor in population growth and the dynamics of allergen production in cultured mites.

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Section: Discussionsupporting

confidence: 94%

Population growth and allergen accumulation of Dermatophagoides pteronyssinus cultured at 20 and 25°C

2010

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“…292,296 In general, measures used to reduce exposure to dust mite work to some extent for cat allergen as well. 285 Some 297,298 but not all 292,296,300 studies have demonstrated reduced airborne cat allergen by washing the animal on a weekly basis. Frequent bathing of dogs (at least twice a week) similarly has been found to be effective for reducing dog allergen exposure.…”

Section: Management Of Rhinitismentioning

confidence: 99%

“…279,285 Vinyl encasings are effective, although cloth encasings with semipermeable plastic backing are more comfortable and durable. If a mattress is old, replacement should be considered, but even new hypoallergenic mattresses and pillows should be encased because mite colonization occurs within weeks.…”

Section: Management Of Rhinitismentioning

confidence: 99%

“…This may include HEPA air filtration 279 and vacuum cleaning with a HEPA filter, 280 low humidity, 281 hard surface flooring, 282 hot water laundry, 283 barrier protection on pillows and mattresses, 279,284,285 and the use of acaricides. 279,[286][287][288] The patient should be encouraged to use multiple interventions because an isolated intervention, such as use of dust mite-impermeable bedding, is unlikely to offer clinical benefit.…”

Section: Pollens [Summary Statements 53 54]mentioning

confidence: 99%

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The diagnosis and management of rhinitis: An updated practice parameter

Wallace¹,

Dykewicz²,

Bernstein³

et al. 2008

Journal of Allergy and Clinical Immunology

941

953

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“…2000), for the same reasons as discussed under ‘house dust mites’. Deep‐cleaning strategies will only work if the source of the allergen (the pet) is removed, although Fel d 1 will remain in the building for at least 6 months (Carswell et al. 1999, Boleman 2000).…”

Section: Resultsmentioning

confidence: 99%