Prevalence and risk factors to Demodex folliculorum infection in eyelash follicles from a university population of Mexico.
Jaime Vargas-ArzolaAristeo Segura-SalvadorHonorio Torres-AguilarMario Urbina-MataSergio Aguilar-RuizD Lucía Díaz-ChiguerAdrián Márquez-NavarroLázaro Morales-ReyesNoé Alvarado-VásquezBenjamín Nogueda-TorresPublished in: Acta microbiologica et immunologica Hungarica (2020)
Demodex folliculorum shows a high occurrence in the general population, however, its pathologic relevance is still controversial. In this prospective study, we evaluated the prevalence of D. folliculorum on eyelashes from 8,033 subjects of a university population (including 7,782 students, and 251 academics). Additional information on some risk factors to infection by the mites was evaluated, as well. A prevalence of 1.47% was found, where 118 individuals were positive for D. folliculorum; and, among them, 63 (53.4%) were women and 55 (46.6%) were men. Results showed a negative correlation with the age (r = -0.45), the highest prevalence was found in individuals between 19 and 22 years of age (2.1%, 84 patients). The number of D. folliculorum mites did not differ between the right and left eye; however, the use of cosmetics or facial cream, contact lens, hair removers, were factors present in patients infected with D. folliculorum. Although Demodex prevalence did not increase in line with weight, we found significantly higher prevalence in the 51-60 kg and 71-80 kg weight groups, and a particularly high prevalence in the over 81 kg weight group (2.6%). In conclusion, it was observed that the main population positive to infection consisted of young adults; this is in contrast with the international evidence reporting a high rate of infection in older adults. Besides, our results suggest that items of daily use such as cosmetics, facial cream, eyeliner, glasses, or contact lenses may be some of the main culprits of the infection by D. folliculorum.
Keyphrases
- risk factors
- end stage renal disease
- physical activity
- young adults
- newly diagnosed
- ejection fraction
- body mass index
- chronic kidney disease
- weight loss
- peritoneal dialysis
- magnetic resonance
- emergency department
- risk assessment
- squamous cell carcinoma
- pregnant women
- computed tomography
- neoadjuvant chemotherapy
- insulin resistance
- rectal cancer
- polycystic ovary syndrome
- patient reported
- soft tissue
- adverse drug
- metabolic syndrome