Morphological and ultrastructural changes in fungal agents after LASER application.

Background: Onychomycosis is a fungal nail infection of difficult treatment due to the fungal survival capacity and reduced number of effective therapies. The present study aimed to isolate fungal agents that cause onychomycosis in immunocompetent patients and evaluate how LASER treatments affect the growth and ultrastructure of isolates.

Methods: In total, 21 patients with positive direct microscopic examination (DME) for onychomycosis had nail samples collected for cultivation and phenotypic identification of microorganisms.

A peculiar case of onychomycosis caused by Cladosporium halotolerans.

A 49-year-old patient with changes in the nails of the hallux for 10 years was diagnosed with onychomycosis. The identity of the causative agent was confirmed as Cladosporium halotolerans from the Cladosporium sphaerospermum species complex using molecular techniques. MALDI-TOF identified the agent as C.

Oral colonization by Candida spp. in liver transplant patients: Molecular identification and antifungal susceptibilityOral colonization by Candida spp. in liver transplant.

Unlabelled: Candida species are commensal to normal oral microbiota; however, they can cause infections if immune functions are reduced. The aim of this study was to investigate oral colonization, identify species, and test the susceptibility profile to antifungals. A descriptive study included 97 liver transplant patients who attended the transplant center of a referral hospital in southern Brazil.