Abstract
Demodex folliculorum and D. brevis are cosmopolitan, obligatory parasites. Epidemiological studies have established a clear association between these species and various facial diseases in humans. However, not much is known of the ecology of these mites, also because it has proven difficult to culture them. Here we report a laboratory study on the (combined) effects of temperature and culture medium on the viability of both species. Results showed significant differences in the survival time of D. folliculorum and D. brevis among different temperatures and media. Pair-wise comparisons revealed that both species survived longest in serum medium, at a temperature of 16–22°C. Therefore, we conclude that these conditions allow preservation and maintenance of both Demodex mites.
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References
Anane S, Touzri R, Anane MN, El Aich F, Beltaief O, Zhioua R (2007) Which is the role of parasites and yeasts in the genesis of chronic blepharitis? Pathol Biol (Paris) 55:323–3274
Chen GD (1985) Influence of some environmental factors on the survival of two human follicular mites. Acta Entomologica Sinica 28:75–78 (in Chinese)
Forton F, Germaux MA, Brasseur T, De Liever A, Laporte M, Mathys C et al (2005) Demodicosis and rosacea: epidemiology and significance in daily dermatologic practice. J Am Acad Dermatol 52:74–87
Georgala S, Katoulis AC, Kylafis GD, Koumantaki-Mathioudaki E, Goergala C, Aroni K (2001) Increased density of Demodex folliculorum and evidence of delayed hypersensitivity reaction in subjects with papulopustular rosacea. J Eur Acad Dermatol Venereol 15:441–444
Hsu CK, Hsu MML, Lee JYY (2009) Demodicosis: a clinicopathological study. J Am Acad Dermatol 60:453–461
Jiang SF, Dong LJ, Li TJ (2003) Primary study on conditions for the survival of Demodex folliculorum in vitro. Chin J Pest Control 19:136–137 (in Chinese)
Liu RX (2001) SPSS10.0 statistic method and application. Guangdong People’s Publishing House, Guangzhou (in Chinese)
Moravvej H, Dehghan M, Mohammad A, Meshkat-Razavi G (2007) Association of rosacea with demodicosis. Arch Iran Med 10:199–203
Wu GL (2005) Human parasitology (medical monograph). People’s Medical Publishing House, Beijing (in Chinese)
Wu JW, Meng YC (1990) Laboratory studies on mobility and lifespan of Demodex mites. Acta Academiae Medicinae Suzhou 10:94–97 (in Chinese)
Zhan XM (2005) Human parasitology (medical textbook). People’s Medical Publishing House, Beijing (in Chinese)
Zhao YE, Guo N, Wu LP (2009) The effect of temperature on the viability of Demodex folliculorum and Demodex brevis. Parasitol Res 105:1623–1628
Zhao YE, Wu LP, Peng Y, Cheng H (2010) Retrospective analysis of the association between Demodex infestation and rosacea. Arch Dermatol 146:896–902
Acknowledgments
This work was supported by the National Natural Science Foundation of China (No.30872199) and the Natural Science Foundation of Shaanxi Province, China (No. 2006C247).
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Zhao, YE., Guo, N. & Wu, LP. Influence of temperature and medium on viability of Demodex folliculorum and Demodex brevis (Acari: Demodicidae). Exp Appl Acarol 54, 421–425 (2011). https://doi.org/10.1007/s10493-011-9445-5
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DOI: https://doi.org/10.1007/s10493-011-9445-5