Microbial Changes Associated With Oral Cavity Cancer Progression.

OBJECTIVE: To examine the oral microbiome in the context of oral cavity squamous cell carcinoma. STUDY DESIGN: Basic science research. SETTING: Academic medical center. METHODS: Oral swabs were collected from patients presenting to the operating room for management of oral cavity squamous cell carcinoma and from age- and sex-matched control patients receiving surgery for unrelated benign conditions. 16S ribosomal RNA (rRNA) sequencing was performed on genetic material obtained from swabs. A bacterial rRNA gene library was created and sequence reads were sorted into taxonomic units. RESULTS: Thirty-one control patients (17 males) and 35 cancer patients (21 males) were enrolled. Ages ranged from 23 to 89 (median 63) for control patients and 35 to 86 (median 66) for cancer patients. Sixty-one percent of control patients and 63% of cancer patients were smokers. 16S analyses demonstrated a significant decrease in Streptococcus genera in oral cancer patients (34.11% vs 21.74% of the population, p = .04). Increases in Fusobacterium, Peptostreptococcus, Parvimonas, and Neisseria were also found. The abundance of these bacteria correlated with tumor T-stage. CONCLUSION: 16S rRNA sequencing demonstrated changes in bacterial populations in oral cavity cancer and its progression compared to noncancer controls. We found increases in bacteria genera that correspond with tumor stage-Fusobacteria, Peptostreptococcus, Parvimonas, Neisseria, and Treponema. These data suggest that oral cancer creates an environment to facilitate foreign bacterial growth, rather than implicating a specific bacterial species in carcinogenesis. These bacteria can be employed as a potential marker for tumor progression or interrogated to better characterize the tumor microenvironment.

Student perspectives on asthma management in schools: a mixed-methods study examining experiences, facilitators, and barriers to care.

Objective: Children spend nearly a third of their day at school, making it a critical point of intervention for those with asthma. This study aimed to illuminate minority students' experiences with asthma at school and perceptions of facilitators and barriers to care. Methods: A mixed-methods study was conducted with elementary students with asthma. Participants completed a 24-question survey, drawing exercise to depict experiences caring for their asthma at school, and focus group discussion. Drawings were analyzed for narrative and pictorial themes. Discussions were audio-recorded, transcribed, and independently coded for themes. Results: Fifteen children with asthma (8-11 years) participated from two Chicago schools with predominately African-American populations. Most students (79%) indicated they had control of asthma at school, while 85% identified asthma as a problem when exercising. Half (53%) received help with asthma care at school. Drawings depicted cooperative management with adults or peers and the central role of inhalers as part of everyday asthma care in school. Finally, focus groups produced six key themes within the domains of facilitators: 1) support of others, 2) self-efficacy; 3) perception of being normal; and barriers: 4) lack of support from others; 5) difficulty accessing inhaler; 6) perception of being different. Conclusions: This study suggests asthma care plays an important role in students' school experiences. Stigma around inhaler use, lack of concern by school staff, and limited access to medications remain as barriers to school-based asthma management. Although facilitators, such as support from teachers and peers, do exist, future interventions must address existing barriers.

Disparities in Water and Sewer Services in North Carolina: An Analysis of the Decision-Making Process.

OBJECTIVES: We examined the factors that affect access to municipal water and sewer service for unincorporated communities relying on wells and septic tanks. METHODS: Using a multisite case study design, we conducted in-depth, semistructured interviews with 25 key informants from 3 unincorporated communities in Hoke, New Hanover, and Transylvania counties, North Carolina, July through September 2013. Interviewees included elected officials, health officials, utility providers, and community members. We coded the interviews in ATLAS.ti to identify common themes. RESULTS: Financing for water and sewer service emerged as the predominant factor that influenced decisions to extend these services. Improved health emerged as a minor factor, suggesting that local officials may not place a high emphasis on the health benefits of extending public water and sewer services. Awareness of failed septic systems in communities can prompt city officials to extend sewer service to these areas; however, failed systems are often underreported. CONCLUSIONS: Understanding the health costs and benefits of water and sewer extension and integrating these findings into the local decision-making process may help address disparities in access to municipal services.