Objectives: isolation of
Malassezia furfur from pityriasis versicolor (PV) patients;
in vitro evaluation of
ivermectin and
Calvatia craniiformis antifungal activity as novel agents for treatment; finally evaluation of age, gender, contact with animals and marital status as risk factors for
M. furfur infections. Methods: Sixty PV patients were included.
M furfur isolated on
Sabouraud dextrose agar.
ivermectin aqueous solutions (0.5%), (1%) and (2%);
C craniiformis alcoholic extracts ( 50mg, 100mg, 200mg, 400mg, 600mg, 800mg and 1 gm) were used to determine their novel antifungal activity against
M furfur in vitro using
broth dilution susceptibility test. Results: The majority of patients (61.7%) in age group (27-32) years followed by (21-26) years. Males : females represent (83.33%: 16.67%) . Significant difference was reported among patients in age, gender, marital status and anatomic location of body area infected with
M furfur. Age has no significant correlation with other proposed risk factors of
M.furfur infection. Gender significantly correlated with contact with dogs and birds as well as marital status ( p value =0.000). Marital status significantly correlated with contact with animals(dogs and birds, p value =0.000);infected area of the body ( p value =0.000).Contact with dogs and birds significantly correlated with anatomic location of infected area of the body ( p value =0.000). A total of (75%) of patients respond to treatment with (2 %)
ivermectin aqueous solution, the meantime for clearance was 23.5 days. A total of (90 %) of patients respond to treatment with alcoholic extract of
C. craniiformis (1000 mg), meantime for clearance was 24days. Significant difference in time of complete curing reported between groups (p<0.05). Significant difference was detected between the following
C. craniiformis concentrations: 100mg and 200 mg; 200 mg and 400 mg; 400 mg and 600 mg; 100mg and 1000 mg; 800 mg and 1000 mg; 400 mg and 1000 mg. Significant difference between 1% and 2% as well as 0.5% and 2%
Ivermectin was determined. Conclusions:
M. furfur considered an important etiology for PV. Alcoholic extract of
C. craniiformis (1000 mg), and (2%)
ivermectin aqueous solution, significantly inhibit the
in vitro growth of
M. furfur. The effect was proportionally associated with concentration. The meantime of clearance for clinical lesions, using these agents was shorter than
fluconazole and hence can be used as a novel topical antifungal agent for treatment of PV associated
M. furfur infections. The main risk factor for PV associated
M. furfur infection was direct contact with dogs and birds while infection indirectly affected by gender .The main affected sites were neck and shoulder together, neck and trunk respectively.