Significant variation of filamentation phenotypes in clinical Candida albicans strains.

Introduction: Candida albicans is an opportunistic human pathogen that typically resides as part of the microbiome in the gastrointestinal and genitourinary tracts of a large portion of the human population. This fungus lacks a true sexual cycle and evolves in a largely clonal pattern. The ability to cause disease is consistent across the species as strains causing systemic infections appear across the known C. albicans intra-species clades. Methods: In this work, strains collected from patients with systemic C. albicans infections isolated at the Nebraska Medicine clinical laboratory were typed by MLST analysis. Since the ability to form filaments has been linked to pathogenesis in C. albicans, these clinical strains, as well as a previously genotyped set of clinical strains, were tested for their ability to filament across a variety of inducing conditions. Results: Genotyping of the clinical strains demonstrated that the strains isolated at one of the major medical centers in our region were as diverse as strains collected across the United States. We demonstrated that clinical strains exhibit a variety of filamentation patterns across differing inducing conditions. The only consistent pattern observed in the entire set of clinical strains tested was an almost universal inability to filament in standard solid inducing conditions used throughout the C. albicans field. A different solid filamentation assay that produces more robust filamentation profiles from clinical strains is proposed in this study, although not all strains expected to filament in vivo were filamentous in this assay. Discussion: Our data supports growing evidence that broad phenotypic diversity exists between the C. albicans type strain and clinical strains, suggesting that the type strain poorly represents filamentation patterns observed in most clinical isolates. These data further highlight the need to use diverse clinical strains in pathogenesis assays.

Telemedicine Versus Traditional for Follow-Up Evaluation of Enuresis.

Introduction: Telemedicine allows health care professionals to diagnose and treat patients remotely. Enuresis is one of the most common chronic problems in childhood and specialized care can be limited. Utilization of telemedicine in this setting has not been previously analyzed. Materials and Methods: This study's aim is to evaluate the feasibility and effectiveness of telemedicine follow-up treatment of enuresis compared with traditional follow-up at our institution. A retrospective review of patients treated for nocturnal enuresis with either telemedicine (Group 1) or traditional (Group2) follow-up care was conducted. Patients, aged 5-18 years, treated for enuresis between July 2016 and December 2017 were included. Patients with confounding disease were excluded. Resolution of enuresis was the primary outcome as categorized by the International Children's Continence Society standards. Results: Seventy-seven (n = 77) patients met inclusion criteria with 23 patients in Group 1 and 54 patients in Group 2. Two patients in each group were lost to follow-up and 61.9% in Group 1 and 48.1% in Group 2 responded to treatment. The average age for both groups was 9.2 years. Patients in Group 1 averaged four appointments per patient and patients in Group 2 averaged 3.04 appointments per patient. Telemedicine follow-up patients missed fewer appointments (0.14) than patients with traditional follow-up (0.5) (p-value = 0.016). Thirteen of 21 patients (61.9%) responded to treatment in Group 1 (7 partial and 6 complete responders) as compared with 25 of 52 patients (48.1%) responding to treatment in Group 2 (8 partial and 17 complete responders) (p = 0.22). Of patients in Group 1, 87% reported they would use telemedicine again. Conclusions: Telemedicine follow-up of patients with enuresis demonstrated comparable effectiveness. Most patient families demonstrate a favorable opinion of using telemedicine again for this problem. Further research to understand the efficacy and benefits of telemedicine in this setting is needed.