Ahmet Berhan YILMAZ, Önder AKKAŞ

Investigation of demodex spp prevalence in medical laboratory students

This study focused on the prevalence of Demodex spp. in the students at Igdir University Vocational School of Health Services (VSHS) and on possible factors for this occurrence.The study was conducted with a total of 171 students (in the 18–52 age group, mean age: 21.33±3.14, of whom 73 were male and 98 were female) between January 2018 and May 2018. Samples were taken from the students’ faces - especially the nasal root, forehead, and cheeks - using the cellophane tape method. The samples were analyzed under a microscope, without dyeing,at 10X and 40X magnifications. To discover possible causes for the Demodex spp. prevalence, a survey was given to the same students.In this investigation, 59 out of 171 students were found to have Demodex spp. There was no immediate relationship between the prevalence of Demodex spp. and variables such as gender, age, family type, the presence of chronic disease, or facial hygiene. However, the ratio of Demodex spp. prevalence reached 19% in students who habitually ate dried nuts and fruits compared to those who did not.We concluded that the Demodex spp.the infestation was very high in students at VSHS. We also detected a negative correlation between the prevalence of Demodex spp. and the habit of eating dried nuts and fruits.

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1. Yolasıgmaz A, Budak S. Demodicosis. In: Ozcel MA, Ozbel Y, Ak M, eds, Ozcel’s medical parasitic diseases. Meta Publication. 2007; 891-4.

2. Cheng AM, Sheha H, Tseng SC. Recent advances on ocular Demodex infestation. Curr Opin Ophthalmol. 2015;26:295-300.

3. Biernat MM, Rusiecka-Ziółkowska J, Piątkowska E, et al. Occurrence of Demodex species in patients with blepharitis and in healthy individuals: a 10- year observational study. Japan J Oftalmol. 2018;62:628-33.

4. Lacey N, Raghallaigh SN, Powell FC. Demodex mites–commensals, parasites or mutualistic organisms. Dermatology. 2011;222:128-30.

5. Sun J, Gui X, He J, et al. The relationship between infestation of Demodex folliculorum and epidermal neoplasm on face. Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi. 2005;23:428-31.

6. Czepita D, Kuźna-Grygiel W, Kosik-Bogacka D. Investigations on the occurrence as well as the role of Demodex folliculorum and Demodex brevis in the pathogensis of blepharitis. Klin Oczna. 2005;107:80-2.

7. Desch C, Nutting WB. Demodex folliculorum (Simon) and D. brevisakbulatova of man: redescription and reevaluation. J Parasitol. 1972;58:169-77.

8. Yazar S, Özcan H, Çetinkaya Ü. Investigation of Demodex sp using cellophane tape method among university students. Türkiye Parazitol Derg. 2008;32:238- 40.

9. Karaman U, Koloren Z, Enginyurt O, et al. The epidemiology of demodex mites at the college students living in dormitories in the city of Ordu. Turkiye Parazitol Derg. 2014;38:166-71.

10. Arici MK, Sumer Z, Topaklara A, et al. Incidence of Demodex of folliculorum on the eyelash in normal population and in blepharitis patients. MNOphthalmol. 2002;9:51-3.

11. Rusiecka-Ziółkowska J, Nokiel M, Fleischer M. Demodex-an old pathogen or a new one?. Adv Clin Exp Med. 2014;23:295-8.

12. Karaman U, Sener S, Celik T, et al. Investigation of Demodex spp by histopathologic method in cases involving infectious and benign states of the skin. J Turgut Ozal Med Cent. 2008;151:5-7.

13. Ru-Juan Z, Xue-Rong Y, Ying Z, et al. Investigation on Demodex infection status and influencing factors in medical students in Wuhu City. Zhongguoxue xi chongbing fang zhi za zhi. 2017;29:358-62.

14. Cao YS, You QX, Wang L, et al. Facial Demodex infection among college students in Tangshan. Zhongguo ji sheng chongxueyu ji sheng chongbing za zhi. 2009;27:271-3.

15. Ding Y, Huang X. Investigation of external auditory meatus secretion Demodex folliculorum and Demodex brevis infection in college students. Lin chuanger bi yanhouke za zhi. 2005;19:176-7.

16. Yazar S, Ozcan H, Cetinkaya U. Investigation of Demodex spusing cellophane tape method among university students. Turkiye Parazitol Derg. 2008;32:238- 40.

17. Miman O, Simsek K, Ozselcuk S, et al. Investigation of Demodexsp prevalence among university students. J Kocatepe Med. 2008;9:37-9.

18. Zomorodian K, Geramishoar M, Saadat F, et al. Facial demodicosis. Eur J Dermatol. 2004;14:121-2.

19. Roihu T, Kariniemi AL. Demodex mites in acne rosacea. J Cutan Pathol. 1998;25:550-2.

20. Cengiz ZT, Yılmaz H, Uce-Ozkol H, et al. The prevalence of Demodexsp in patients admitted to the parasitology laboratory of the Dursun Odabas Medical Center in Yuzuncu Yil University. Turkiye Parazitol Derg. 2014;38:9-11.

21. Ozcelik S, Sümer Z, Degerli S, et al. The incidence of Demodex folliculorum in patients with chronic kidney deficiency. Turkiye Parazitol Derg. 2007;31:66-8.

22. Akdeniz S, Bahceci M, Tuzcu AK, et al. Is Demodexfolliculorum larger in diabetic patients?. J Eur Acad Dermatol Venereol. 2002;16:539-41.

23. Luo XH, Li J, Chen C, et al. Ocular Demodicosis as a Potential Cause of Ocular Surface Inflammation. Cornea. 2017;36:9-14.

24. Yun SH, Levin F, Servat J. Demodex folliculitis presenting as periocular vesiculopustular rash. Orbit. 2013;32:370-1.

25. Turan N, Kapicioglu Y, Sarac G. The effect of skin, sebum, pH, and moisture on Demodex infestation in Acne Vulgaris and Rosacea patients. Turkiye Parazitol Derg. 2017;41:143-7.