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https://www.readbyqxmd.com/read/29149250/modeling-the-causal-role-of-dna-methylation-in-the-association-between-cigarette-smoking-and-inflammation-in-african-americans-a-2-step-epigenetic-mendelian-randomization-study
#1
Min A Jhun, Jennifer A Smith, Erin B Ware, Sharon L R Kardia, Thomas H Mosley, Stephen T Turner, Patricia A Peyser, Sung Kyun Park
The association between cigarette smoking and inflammation is well known. However, the biological mechanisms behind the association are not fully understood, particularly the role of DNA methylation, which is known to be affected by smoking. Using 2-step epigenetic Mendelian randomization, we investigated the role of DNA methylation in the association between cigarette smoking and inflammation. In 822 African Americans from the Genetic Epidemiology Network of Arteriopathy, phase 2 (Jackson, Mississippi; 2000-2005), study population, we examined the association of cigarette smoking with DNA methylation using single nucleotide polymorphisms identified in previous genome-wide association studies of cigarette smoking...
November 15, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/29143688/investigating-management-choices-for-canine-heartworm-disease-in-northern-mississippi
#2
Tobi N Ku
BACKGROUND: There are concerns that the chronic use of macrocyclic lactone preventives to kill adult heartworms ("soft-" or "slow-kill") may have contributed to the development of macrocyclic lactone resistance. This prospective analysis was designed to expand our understanding of currently employed treatment decisions, protocols utilized in a "slow-kill" methodology, and trends in heartworm prevention in a region with concerns about macrocyclic lactone resistance. We tested the hypothesis that practitioners underestimate the actual percentage of heartworm-positive dogs treated with "slow-kill" therapy...
November 9, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/29143650/microfilarial-reduction-following-proheart%C3%A2-6-and-proheart%C3%A2-sr-12-treatment-in-dogs-experimentally-inoculated-with-a-resistant-isolate-of-dirofilaria-immitis
#3
Tom L McTier, Aleah Pullins, Gregory A Inskeep, Genevieve Gagnon, Huihao Fan, Adam Schoell, Tara Bidgood, Joyce Login, Patrick Meeus
BACKGROUND: Emerging resistance of heartworms (Dirofilaria immitis) to macrocyclic lactone (ML) preventives is an increasing concern for veterinarians, pet owners and animal health companies that supply heartworm preventives, with recent reports of resistant isolates identified from the Mississippi Delta region of the United States. Products that are effective in eliminating microfilariae (MF) in dogs harboring resistant heartworm infections could be important in reducing the spread of heartworm resistance...
November 9, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/29127938/caregiver-feeding-practices-and-weight-status-among-african-american-adolescents-the-jackson-heart-kids-pilot-study
#4
E Thomaseo Burton, Tanganyika Wilder, Bettina M Beech, Marino A Bruce
Adolescence is a stage in the life course during which youth become more autonomous in their health behaviors. Overweight and obesity during this developmental period are associated with short- and long-term physical and emotional morbidity, and African American youth are at pronounced risk for these health outcomes. The style of parenting employed by caregivers influences health behaviors in children, though the persistence of this influence into adolescence is not clear. This study examined associations among caregiver feeding practices, body mass index z-score (zBMI), and waist circumference (WC) in a cohort of 212 African American adolescents (50...
November 6, 2017: Eating Behaviors
https://www.readbyqxmd.com/read/29120567/use-of-the-vectortest-for-advanced-warning-of-human-west-nile-virus-cases-in-mississippi
#5
Wendy C Varnado, Jerome Goddard
West Nile virus (WNV) continues to persist in Mississippi; 2012 was the worse year for human infections, with a total of 247 reported human cases and five deaths. Public health officials are keenly interested in ways to detect WNV in advance in their jurisdictions, so they can implement appropriate and timely mosquito control in affected areas. A total of 40,312 female Culex quinquefasciatus mosquitoes were collected by gravid traps in Mississippi in 2013 and 2014 and tested by VectorTest, a rapid immunochromatographic assay (“dip-stick” test) that is a highly specific and effective rapid threat assessment tool...
December 2016: Journal of Environmental Health
https://www.readbyqxmd.com/read/29120297/recent-us-bluetongue-virus-serotype-3-isolates-found-outside-of-florida-indicate-evidence-of-reassortment-with-co-circulating-endemic-serotypes
#6
Erin E Schirtzinger, Dane C Jasperson, Eileen N Ostlund, Donna J Johnson, William C Wilson
Since 1999, 11 serotypes of bluetongue virus (BTV) similar to Central American or Caribbean strains have been isolated in the southeastern United States, predominantly in Florida. The majority of the incursive serotypes have remained restricted to the southeastern US. In recent years, BTV serotype 3 (BTV-3) has been isolated in areas increasingly distant from Florida. The current study uses whole genome sequencing of recent and historical BTV-3 isolates from the US, Central America and the Caribbean with additional sequences from GenBank to conduct phylogenetic analyses...
November 9, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/29118684/a-pilot-study-investigating-employee-utilization-of-corporate-telehealth-services
#7
Seena Shazowee Edgerton
In line with the vision of the University of Mississippi Medical Center (UMMC) to improve health outcomes and eliminate healthcare disparities in Mississippi, a corporate telehealth program was initiated beginning May 2014. A descriptive study was performed to discover common characteristics among enrolled employee users who took advantage of UMMC's corporate telehealth services offered in their workplace throughout the program's first year of operation. This pilot study examined the number of videoconference visits (e-visits) throughout the first year of operation, from May 2014 through April 2015...
2017: Perspectives in Health Information Management
https://www.readbyqxmd.com/read/29107369/modeling-impacts-of-sea-level-rise-oil-price-and-management-strategy-on-the-costs-of-sustaining-mississippi-delta-marshes-with-hydraulic-dredging
#8
Adrian R H Wiegman, John W Day, Christopher F D'Elia, Jeffrey S Rutherford, James T Morris, Eric D Roy, Robert R Lane, David E Dismukes, Brian F Snyder
Over 25% of Mississippi River delta plain (MRDP) wetlands were lost over the past century. There is currently a major effort to restore the MRDP focused on a 50-year time horizon, a period during which the energy system and climate will change dramatically. We used a calibrated MRDP marsh elevation model to assess the costs of hydraulic dredging to sustain wetlands from 2016 to 2066 and 2016 to 2100 under a range of scenarios for sea level rise, energy price, and management regimes. We developed a subroutine to simulate dredging costs based on the price of crude oil and a project efficiency factor...
October 26, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29096144/the-potential-impact-of-aquatic-nuisance-species-on-recreational-fishing-in-the-great-lakes-and-upper-mississippi-and-ohio-river-basins
#9
Richard C Ready, Gregory L Poe, T Bruce Lauber, Nancy A Connelly, Richard C Stedman, Lars G Rudstam
Concern over the potential transfer of aquatic nuisance species (ANS) between the Great Lakes basin and the Upper Mississippi River basin has motivated calls to re-establish hydrologic separation between the two basins. Accomplishing that goal would require significant expenditures to re-engineer waterways in the Chicago, IL area. These costs should be compared to the potential costs resulting from ANS transfer between the basin, a significant portion of which would be costs to recreational fisheries. In this study, a recreational behavior model is developed for sport anglers in an eight-state region...
October 28, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/29093136/state-variations-in-infant-feeding-regulations-for-child-care
#10
Sara E Benjamin-Neelon, Sarah Gonzalez-Nahm, Elyse Grossman, Melanie L Davis, Brian Neelon, Anna Ayers Looby, Natasha Frost
OBJECTIVES: Early care and education (ECE) settings have become primary targets for policy change in recent years. In our 2008 study, we assessed state and regional variation in infant feeding regulations for ECE and compared them to national standards. We conducted the same regulatory review to assess change over time. Because all but 2 states have updated their regulations, we hypothesized that states would have made substantial improvements in the number of regulations supporting infant feeding in ECE...
November 1, 2017: Pediatrics
https://www.readbyqxmd.com/read/29092630/enhanced-curriculum-intervention-did-not-result-in-increased-postnatal-physical-activity-in-rural-southern-primarily-african-american-women
#11
Jessica L Thomson, Lisa M Tussing-Humphreys, Melissa H Goodman, Alicia S Landry
PURPOSE: To test the impact of an enhanced home visiting curriculum on postnatal physical activity in rural, southern, primarily African American mothers. DESIGN: Randomized controlled trial. SETTING: Three rural counties in Mississippi. PARTICIPANTS: Between September 2013 and May 2016, 54 postpartum women randomized to standard home visiting curriculum (n = 30 control) or lifestyle enhanced home visiting curriculum (n = 24 experimental) were followed for 12 months...
January 1, 2017: American Journal of Health Promotion: AJHP
https://www.readbyqxmd.com/read/29091717/unintended-costs-and-consequences-of-school-closures-implemented-in-preparation-for-hurricane-isaac-in-harrison-county-school-district-mississippi-august-september-2012
#12
Yenlik Zheteyeva, Jeanette J Rainey, Hongjiang Gao, Evin U Jacobson, Bishwa B Adhikari, Jianrong Shi, Jonetta J Mpofu, Darlene Bhavnani, Thomas Dobbs, Amra Uzicanin
INTRODUCTION: School closures, while an effective measure against the spread of disease during a pandemic, may carry unintended social and economic consequences for students and families. We evaluated these costs and consequences following a 4-day school closure in Mississippi's Harrison County School District (HCSD). METHODS: In a survey of all households with students enrolled in HCSD, we collected information on difficulties related to the school closure, including interruption of employment and pay, loss of access to subsidized school meals, and arrangement of alternative childcare...
2017: PloS One
https://www.readbyqxmd.com/read/29082810/virulence-differences-in-blumeria-graminis-f-sp-tritici-from-the-central-and-eastern-united-states
#13
Christina Cowger, Lucky Kumar Mehra, Consuelo Arellano, Emily A Meyers, Paul Murphy
Wheat powdery mildew is a disease of international importance that occurs across a wide geographic area in the USA. A virulence survey of Blumeria graminis f. sp. tritici, the causal agent, was conducted by sampling 36 wheat fields in 15 U.S. states in the years 2013 and 2014. Using a hierarchical sampling protocol, isolates were derived from three separated plants at each of five separated sites within each field in order to assess the spatial distribution of pathotypes. A total of 1,017 isolates from those fields were tested individually on single-gene differential cultivars containing a total of 21 powdery mildew resistance (Pm) genes...
October 30, 2017: Phytopathology
https://www.readbyqxmd.com/read/29053728/density-abundance-survival-and-ranging-patterns-of-common-bottlenose-dolphins-tursiops-truncatus-in-mississippi-sound-following-the-deepwater-horizon-oil-spill
#14
Keith D Mullin, Trent McDonald, Randall S Wells, Brian C Balmer, Todd Speakman, Carrie Sinclair, Eric S Zolman, Fawn Hornsby, Shauna M McBride, Krystan A Wilkinson, Lori H Schwacke
After the Deepwater Horizon (DWH) oil spill began in April 2010, studies were initiated on northern Gulf of Mexico common bottlenose dolphins (Tursiops truncatus) in Mississippi Sound (MSS) to determine density, abundance, and survival, during and after the oil spill, and to compare these results to previous research in this region. Seasonal boat-based photo-identification surveys (2010-2012) were conducted in a section of MSS to estimate dolphin density and survival, and satellite-linked telemetry (2013) was used to determine ranging patterns...
2017: PloS One
https://www.readbyqxmd.com/read/29044820/will-fluctuations-in-salt-marsh-mangrove-dominance-alter-vulnerability-of-a-subtropical-wetland-to-sea-level-rise
#15
Karen L McKee, William C Vervaeke
To avoid submergence during sea-level rise, coastal wetlands build soil surfaces vertically through accumulation of inorganic sediment and organic matter. At climatic boundaries where mangroves are expanding and replacing salt marsh, wetland capacity to respond to sea-level rise may change. To compare how well mangroves and salt marshes accommodate sea-level rise, we conducted a manipulative field experiment in a subtropical plant community in the subsiding Mississippi River Delta. Experimental plots were established in spatially equivalent positions along creek banks in monospecific stands of Spartina alterniflora (smooth cordgrass) or Avicennia germinans (black mangrove) and in mixed stands containing both species...
October 16, 2017: Global Change Biology
https://www.readbyqxmd.com/read/29028756/financial-performance-of-hospitals-in-the-mississippi-delta-region-under-the-hospital-readmissions-reduction-program-and-hospital-value-based-purchasing-program
#16
Hsueh-Fen Chen, Saleema Karim, Fei Wan, Adrienne Nevola, Michael E Morris, T Mac Bird, J Mick Tilford
BACKGROUND: Previous studies showed that the Hospital Readmissions Reduction Program (HRRP) and the Hospital Value-based Purchasing Program (HVBP) disproportionately penalized hospitals caring for the poor. The Mississippi Delta Region (Delta Region) is among the most socioeconomically disadvantaged areas in the United States. The financial performance of hospitals in the Delta Region under both HRRP and HVBP remains unclear. OBJECTIVE: To compare the differences in financial performance under both HRRP and HVBP between hospitals in the Delta Region (Delta hospitals) and others in the nation (non-Delta hospitals)...
November 2017: Medical Care
https://www.readbyqxmd.com/read/29027974/longitudinal-measurements-of-tarnished-plant-bug-hemiptera-miridae-susceptibility-to-insecticides-in-arkansas-louisiana-and-mississippi-associations-with-insecticide-use-and-insect-control-recommendations
#17
Katherine A Parys, Randall G Luttrell, Gordon L Snodgrass, Maribel Portilla, Josh T Copes
Concentration-response assays were conducted from 2008 through 2015 to measure the susceptibility of field populations of Lygus lineolaris (Palisot de Beauvois) from the Delta regions of Arkansas, Louisiana, and Mississippi to acephate, imidacloprid, thiamethoxam, permethrin, and sulfoxaflor. A total of 229 field populations were examined for susceptibility to acephate, 145 for susceptibility to imidacloprid, and 208 for susceptibility to thiamethoxam. Permethrin assays were conducted in 2014 and 2015 to measure levels of pyrethroid resistance in 44 field populations, and sulfoxaflor assays were conducted against 24 field populations in 2015...
October 13, 2017: Insects
https://www.readbyqxmd.com/read/28985516/assessment-of-spatial-variation-in-breast-cancer-specific-mortality-using-louisiana-seer-data
#18
Rachel Carroll, Andrew B Lawson, Chandra L Jackson, Shanshan Zhao
BACKGROUND: Previous studies suggest spatial differences in mortality for many types of cancer, including breast cancer. Identifying explanations for these spatial differences results in a better understanding of what leads to longer survival time. METHODS: We used a Bayesian accelerated failure time model with spatial frailty terms to investigate potential spatial differences in breast cancer mortality following breast cancer diagnosis using 2000-2013 Louisiana SEER data...
November 2017: Social Science & Medicine
https://www.readbyqxmd.com/read/28980772/genetic-variation-and-biogeography-of-the-spotted-gar-lepisosteus-oculatus-from-core-and-peripheral-populations
#19
Solomon R David, Jeremy J Wright
The spotted gar (Lepisosteus oculatus) shows a disjunct natural distribution, with a core population extending from the central Mississippi River Basin to the U.S. gulf coast and a peripheral population in the southern Great Lakes Basin. Despite significant conservation concerns for this species in the Great Lakes watersheds where it occurs, few genetic examinations and comparisons of these populations have been performed. We investigated inter- and intrapopulational variation in several mitochondrial genetic markers (cytochrome oxidase subunit I, COI; cytochrome oxidase subunit II, COII; and 16S rRNA, 16S) from spotted gars taken from core and peripheral populations...
November 2017: Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution
https://www.readbyqxmd.com/read/28975528/effects-of-military-activity-and-habitat-quality-on-dna-damage-and-oxidative-stress-in-the-largest-population-of-the-federally-threatened-gopher-tortoise
#20
Christopher W Theodorakis, S Marshall Adams, Chandra Smith, Jamie Rotter, Ashley Hay, Joy Eslick
Department of Defense lands are essential for providing important habitat for threatened, endangered, and at-risk species (TER-S). However, there is little information on the effects of military-related contaminants on TER-S on these lands in field situations. Thus, this study examined genotoxicity and oxidative stress in gopher tortoises (Gopherus polyphemus) on Camp Shelby, MS-the largest known population of this species, which is listed as an "endangered species" in Mississippi and a "threatened species" by the U...
October 3, 2017: Ecotoxicology
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