SciCombinator

Discover the most talked about and latest scientific content & concepts.

Concept: North Carolina

205

Ground-level ozone is adverse to human and vegetation health. High ground-level ozone concentrations usually occur over the United States in the summer, often referred to as the ozone season. However, observed monthly mean ozone concentrations in the southeastern United States were higher in October than July in 2010. The October ozone average in 2010 reached that of July in the past three decades (1980-2010). Our analysis shows that this extreme October ozone in 2010 over the Southeast is due in part to a dry and warm weather condition, which enhances photochemical production, air stagnation, and fire emissions. Observational evidence and modeling analysis also indicate that another significant contributor is enhanced emissions of biogenic isoprene, a major ozone precursor, from water-stressed plants under a dry and warm condition. The latter finding is corroborated by recent laboratory and field studies. This climate-induced biogenic control also explains the puzzling fact that the two extremes of high October ozone both occurred in the 2000s when anthropogenic emissions were lower than the 1980s and 1990s, in contrast to the observed decreasing trend of July ozone in the region. The occurrences of a drying and warming fall, projected by climate models, will likely lead to more active photochemistry, enhanced biogenic isoprene and fire emissions, an extension of the ozone season from summer to fall, and an increase of secondary organic aerosols in the Southeast, posing challenges to regional air quality management.

Concepts: Chemistry, Florida, North Carolina, Southern United States, Georgia, Kentucky, Tennessee, West Virginia

164

Methicillin resistant Staphylococcus aureus (MRSA) poses a threat to patient safety and public health. Understanding how MRSA is acquired is important for prevention efforts. This study investigates risk factors for MRSA nasal carriage among patients at an eastern North Carolina hospital in 2011.

Concepts: Health care, Medicine, Staphylococcus aureus, Antibiotic resistance, Physician, Methicillin-resistant Staphylococcus aureus, North Carolina, Eastern North Carolina

158

On October 20, 2017, Zoster Vaccine Recombinant, Adjuvanted (Shingrix, GlaxoSmithKline, [GSK] Research Triangle Park, North Carolina), a 2-dose, subunit vaccine containing recombinant glycoprotein E in combination with a novel adjuvant (AS01B), was approved by the Food and Drug Administration for the prevention of herpes zoster in adults aged ≥50 years. The vaccine consists of 2 doses (0.5 mL each), administered intramuscularly, 2-6 months apart (1). On October 25, 2017, the Advisory Committee on Immunization Practices (ACIP) recommended the recombinant zoster vaccine (RZV) for use in immunocompetent adults aged ≥50 years.

Concepts: Vaccine, North Carolina, Herpes zoster, Valaciclovir, Research Triangle Park, Durham, North Carolina, University of North Carolina at Chapel Hill, Advisory Committee on Immunization Practices

150

The jobs of Latino manual laborers place their mental and physical health at risk. This study evaluates the associations among musculoskeletal pain, mental health, and work organization in Latino manual laborers. Farmworkers and non-farmworkers (n = 189) in North Carolina were interviewed for self-reported musculoskeletal pain, depressive symptoms, stress, work safety climate, and precarious job status. More non-farmworkers than farmworkers had neck and shoulder pain, but they did not differ in other areas of musculoskeletal pain. Depressive symptoms had a significant association with neck and shoulder pain (p<0.05). Precariousness had a significant association with back pain (p<0.05). Farmworker participants had H-2A visas and were afforded some protection compared to non-farmworker manual workers. Research is needed to improve policy that relieves pain and improves mental health for all Latino manual workers.

Concepts: Improve, United States, Symptoms, Occupational health psychology, North Carolina, South Carolina, Laborer, Virginia

147

North Carolina’s aging population will require a health care workforce prepared to meet patients' complex care needs. The keys to training this workforce include continuing to mobilize the state’s educational infrastructure to provide interprofessional, community-based experiences and maximizing exposure to new models of care.

Concepts: Health care, Health care provider, United States, Illness, North Carolina, Southern United States, South Carolina, North Carolina State University

38

Climate change is expected to decrease heating demand and increase cooling demand for buildings and affect outdoor thermal comfort. Here, we project changes in residential heating degree-days (HDD) and cooling degree-days (CDD) for the historical (1981-2010) and future (2080-2099) periods in the United States using median results from the Climate Model Intercomparison Project phase 5 (CMIP5) simulations under the Representation Concentration Pathway 8.5 (RCP8.5) scenario. We project future HDD and CDD values by adding CMIP5 projected changes to values based on historical observations of US climate. The sum HDD + CDD is an indicator of locations that are thermally comfortable, with low heating and cooling demand. By the end of the century, station median HDD + CDD will be reduced in the contiguous US, decreasing in the North and increasing in the South. Under the unmitigated RCP8.5 scenario, by the end of this century, in terms of HDD and CDD values considered separately, future New York, NY, is anticipated to become more like present Oklahoma City, OK; Denver, CO, becomes more like Raleigh, NC, and Seattle, WA, becomes more like San Jose, CA. These results serve as an indicator of projected climate change and can help inform decision-making.

Concepts: United States, Climate, U.S. state, Climate change, North Carolina, Project management, Global warming, Atmospheric Model Intercomparison Project

28

Serious problems have plagued the much-anticipated rollout of the health insurance exchanges created under the Affordable Care Act (ACA). Many Americans have been unable to sign up for insurance because of difficulties with the online marketplaces, and insurers are often receiving inaccurate information from the government about people who do manage to enroll. If such problems persist, they could deter relatively healthy persons from obtaining coverage and prevent the ACA from meeting its enrollment goals. Problems with the federal website will probably recede over time; indeed, its accessibility to consumers is already improving. The greatest long-term challenge to Obamacare remains . . .

Concepts: Health care, United States, United States Constitution, U.S. state, North Carolina, Government, Democratic Party, South Carolina

28

Patients on antithrombotic therapy (ATT) have the highest risk of ongoing bleeding and mortality. Hemospray (Cook Medical, Winston-Salem, North Carolina, USA) is a novel hemostatic agent for the treatment of upper gastrointestinal bleeding (UGIB). Initial reports on its use appear promising in terms of initial hemostasis and rebleeding rates. It is unknown whether this also pertains to patients on ATT. The aim of the current study therefore was to evaluate the efficacy of Hemospray in the treatment of UGIB in patients taking ATTs. A total of 16 unselected consecutive patients with UGIB who were treated with Hemospray were analyzed (eight taking ATT for various indications and eight not on ATT). Initial hemostasis was achieved after Hemospray application in 5 /8 patients on ATT (63 %) and in all eight patients not on therapy (P = 0.20). Rebleeding rates were similar in both groups. These preliminary data on the use of Hemospray in the management of UGIB are promising in both patients with and without ATT; however, caution should be exercised for its use in patients on ATT with spurting arterial bleeding.

Concepts: Medical emergencies, Gastroenterology, Hemostasis, Bleeding, North Carolina, Upper gastrointestinal bleeding, Antihemorrhagic, Gastrointestinal bleeding

27

Purpose: Colorectal cancer (CRC) is a leading cause of cancer mortality and disparately affects rural, low-income and minority individuals. Thus, to inform effective interventions and policies to increase screening rates and thus ameliorate CRC disparities, this study’s purpose was to examine barriers and facilitators to CRC screening among low-income, rural eastern North Carolina residents. Methods: We conducted 4 focus group discussions in October and November 2011, among a convenience sample of eastern North Carolina residents (n = 45). The focus group discussion guide included open-ended questions about barriers and facilitators to CRC screening. Discussions were audio recorded and then transcribed verbatim. A codebook listing codes and operational definitions was developed by 2 research team members, who then iteratively and independently double-coded all transcripts. Nvivo (version 9, QSR International Pty Ltd, Doncaster, Victoria, Australia) was used to manage data. Themes were extracted based upon depth and frequency of mention. Findings: Major barriers to CRC screening included the high cost of tests and follow-up care, fear of the test itself (colonoscopy), fear of cancer diagnosis, and fear of burdening family members. Violation (among men) and embarrassment (among women) were also barriers. Facilitators included doctor’s recommendation, symptoms, support from family and friends, and the desire to live a long and healthy life. Intervention ideas included free tests with information and resources for follow-up care as needed. Conclusion: Understanding barriers and facilitators to CRC screening can assist clinicians and public health practitioners in designing effective interventions to reduce CRC disparities.

Concepts: Cancer, Focus group, Colorectal cancer, Qualitative research, North Carolina, QSR International, NVivo, Eastern North Carolina

24

Ocular syphilis, a manifestation of Treponema pallidum infection, can cause a variety of ocular signs and symptoms, including eye redness, blurry vision, and vision loss. Although syphilis is nationally notifiable, ocular manifestations are not reportable to CDC. Syphilis rates have increased in the United States since 2000. After ocular syphilis clusters were reported in early 2015, CDC issued a clinical advisory (1) in April 2015 and published a description of the cases in October 2015 (2). Because of concerns about an increase in ocular syphilis, eight jurisdictions (California, excluding Los Angeles and San Francisco, Florida, Indiana, Maryland, New York City, North Carolina, Texas, and Washington) reviewed syphilis surveillance and case investigation data from 2014, 2015, or both to ascertain syphilis cases with ocular manifestations. A total of 388 suspected ocular syphilis cases were identified, 157 in 2014 and 231 in 2015. Overall, among total syphilis surveillance cases in the jurisdictions evaluated, 0.53% in 2014 and 0.65% in 2015 indicated ocular symptoms. Five jurisdictions described an increase in suspected ocular syphilis cases in 2014 and 2015. The predominance of cases in men (93%), proportion of those who are men who have sex with men (MSM), and percentage who are HIV-positive (51%) are consistent with the epidemiology of syphilis in the United States. It is important for clinicians to be aware of potential visual complications related to syphilis infections. Prompt identification of potential ocular syphilis, ophthalmologic evaluation, and appropriate treatment are critical to prevent or manage visual symptoms and sequelae of ocular syphilis.

Concepts: United States, U.S. state, Ophthalmology, Syphilis, New York City, North Carolina, Los Angeles, Treponema pallidum