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    The incidence of Demodex folliculorum in the combination of allergic rhinitis and diabetes mellitus
    (Tehran University of Medical Sciences (TUMS), 2019) Arlı, Cengiz; Ozsan, Muge; Gurkan, Eren; Aycan Kaya, Ozlem; Ko-Kacya, Sumeyya
    Background: Demodex mites are permanent ectoparasites of human pilosebaceous unit. They mainly infect skin of the face and scalp. Many studies have shown higher density of the ectoparasites in diseased inflammatory skin than in normal skin. The aim of this study was to determine the frequency of Demodex folliculorum (DF) in treatment-resistant patients with the combination of allergic rhinitis (AR) and diabetes mellitus (DM). Method: This study was conducted in 2014-2017. It included 92 patients aged 18-70 years who presented at the Ear, Nose and Throat (ENT) and Endocrinology Polyclinics of Mustafa Kemal University Medical Faculty Hospital, Turkey. An age and gender matched control group was formed of 30 healthy individuals. To determine the presence of DF, a few eyelashes were taken from eyelids in both groups. Then samples were examined under a light microscope. Results: DF positivity was determined in 44 (47.8%) of the 92 patients and in 1 (3.3%) of the 30 control group subjects. In the patient group, DF positivity was evaluated as present in 14 (43.7%) of the DM patients, in 12 (40%) of the AR patients and in 18 (60%) of the AR+DM patients. Statistically significant DF incidence was found in all three patient groups compared to the control group (P=0.001). The incidence in AR + DM group was not different from other patient groups. Conclusion: DM, AR, advanced age and obesity had prepared the environment for Demodex infestations. This issue should be considered especially in treatment of patients with AR+DM. © 2019, Tehran University of Medical Sciences (TUMS). All rights reserved.
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    Sociodemographic characteristics of patients with demodex brevis and demodex folliculorum infestation and its association with rosacea and behçet’s disease
    (Scientific Publishers of India, 2015) Durmaz, Suleyman; Yula, Erkan; Aycan Kaya, Ozlem; Aksoy Gokmen, Aysegul; Kilinc, Cetin; Atambay, Metin; Ekiz, Ozlem
    Demodex mites are ectoparasites often found in the skin thought to be associated with the development of some skin diseases. Demodex positivity may be affected by several factors. In order to determine the relationship between Demodex infestation and rosacea disease (RD), Behçet’s disease (BD) and various individual parameters such as gender, personal hygiene and skin type. A total of 238 individuals (61 with RD, 46 with BD, and 131 healthy subjects) were investigated for the presence of Demodex folliculorum and D. brevis using the standardized skin surface biopsy technique and a questionnaire. The incidence of Demodex mites in RD patients was significantly higher when compared to the control group (p=0.010 and p=0.001, respectively). However, there was no difference between those with BD and the control group. There was a significant difference between ages of groups, skin types, use of moisturizer, and itching, without taking into account the presence of Demodex among the disease groups (p<0.05). On the other hand, there was no significant difference between disease groups in terms of data of gender, skin care, epilation, and face washing. Our study reveals that the positivity rates of Demodex mites in rosacea patients were significantly higher. Mean ages of groups, skin types, use of moisturizer, and the presence of itching of the ear and face may be associated with higher density of Demodex mites. © 2015, Scientific Publishers of India. All rights reserved.