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[PMID]:29478630
[Au] Autor:Wang R; Kalin L
[Ad] Endereço:Purdue University, Department of Agricultural and Biological Engineering, 225 S. University Street, West Lafayette, IN 47907, USA. Electronic address: wang1283@purdue.edu.
[Ti] Título:Combined and synergistic effects of climate change and urbanization on water quality in the Wolf Bay watershed, southern Alabama.
[So] Source:J Environ Sci (China);64:107-121, 2018 Feb.
[Is] ISSN:1001-0742
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:This study investigated potential changes in flow, total suspended solid (TSS) and nutrient (nitrogen and phosphorous) loadings under future climate change, land use/cover (LULC) change and combined change scenarios in the Wolf Bay watershed, southern Alabama, USA. Four Global Circulation Models (GCMs) under three Special Report Emission Scenarios (SRES) of greenhouse gas were used to assess the future climate change (2016-2040). Three projected LULC maps (2030) were employed to reflect different extents of urbanization in future. The individual, combined and synergistic impacts of LULC and climate change on water quantity/quality were analyzed by the Soil and Water Assessment Tool (SWAT). Under the "climate change only" scenario, monthly distribution and projected variation of TSS are expected to follow a pattern similar to streamflow. Nutrients are influenced both by flow and management practices. The variation of Total Nitrogen (TN) and Total Phosphorous (TP) generally follow the flow trend as well. No evident difference in the N:P ratio was projected. Under the "LULC change only" scenario, TN was projected to decrease, mainly due to the shrinkage of croplands. TP will increase in fall and winter. The N:P ratio shows a strong decreasing potential. Under the "combined change" scenario, LULC and climate change effect were considered simultaneously. Results indicate that if future loadings are expected to increase/decrease under any individual scenario, then the combined change will intensify that trend. Conversely, if their effects are in opposite directions, an offsetting effect occurs. Science-based management practices are needed to reduce nutrient loadings to the Bay.
[Mh] Termos MeSH primário: Mudança Climática
Monitoramento Ambiental
Urbanização/tendências
Poluição Química da Água/estatística & dados numéricos
[Mh] Termos MeSH secundário: Alabama
Nitrogênio/análise
Fósforo/análise
Estações do Ano
Poluentes Químicos da Água/análise
Qualidade da Água
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Water Pollutants, Chemical); 27YLU75U4W (Phosphorus); N762921K75 (Nitrogen)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180301
[Lr] Data última revisão:
180301
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180227
[St] Status:MEDLINE


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[PMID]:29415670
[Au] Autor:Owsley C; McGwin G; Antin JF; Wood JM; Elgin J
[Ad] Endereço:Department of Ophthalmology, School of Medicine, University of Alabama at Birmingham, Birmingham, AL, 35294-0009, USA. owsley@uab.edu.
[Ti] Título:The Alabama VIP older driver study rationale and design: examining the relationship between vision impairment and driving using naturalistic driving techniques.
[So] Source:BMC Ophthalmol;18(1):32, 2018 Feb 07.
[Is] ISSN:1471-2415
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Older drivers aged ≥70 years old have among the highest rates of motor vehicle collisions (MVC) compared to other age groups. Driving is a highly visual task, and older adults have a high prevalence of vision impairment compared to other ages. Most studies addressing visual risk factors for MVCs by older drivers utilize vehicle accident reports as the primary outcome, an approach with several methodological limitations. Naturalistic driving research methods overcome these challenges and involve installing a high-tech, unobtrusive data acquisition system (DAS) in an older driver's own vehicle. The DAS continuously records multi-channel video of driver and roadway, sensor-based kinematics, GPS location, and presence of nearby objects in front of the vehicle, providing an objective measure of driving exposure. In this naturalistic driving study, the purpose is to examine the relationship between vision and crashes and near-crashes, lane-keeping, turning at intersections, driving performance during secondary tasks demands, and the role of front-seat passengers. An additional aim is to compare results of the on-road driving evaluation by a certified driving rehabilitation specialist to objective indicators of driving performance derived from the naturalistic data. METHODS: Drivers ≥70 years old are recruited from ophthalmology clinics and a previous population-based study of older drivers, with the goal of recruiting persons with wide ranging visual function. Target samples size is 195 drivers. At a baseline visit, the DAS is installed in the participant's vehicle and a battery of health and functional assessments are administered to the driver including visual-sensory and visual-cognitive tests. The DAS remains installed in the vehicle for six months while the participant goes about his/her normal driving with no imposed study restrictions. After six months, the driver returns for DAS de-installation, repeat vision testing, and an on-road driving evaluation by a certified driving rehabilitation specialist (CDRS). The data streams recorded by the DAS are uploaded to the data coordinating center for analysis. DISCUSSION: The Alabama VIP Older Driver Study is the first naturalistic older driver study specifically focused on the enrollment of drivers with vision impairment in order to study the relationship between visual dysfunction and driver safety and performance.
[Mh] Termos MeSH primário: Acidentes de Trânsito/prevenção & controle
Condução de Veículo/psicologia
Projetos de Pesquisa
Pessoas com Deficiência Visual/psicologia
[Mh] Termos MeSH secundário: Idoso
Idoso de 80 Anos ou mais
Alabama
Atenção/fisiologia
Coleta de Dados
Feminino
Seres Humanos
Masculino
Estudos Prospectivos
Seleção Visual
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180216
[Lr] Data última revisão:
180216
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180209
[St] Status:MEDLINE
[do] DOI:10.1186/s12886-018-0686-5


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[PMID]:29368466
[Au] Autor:Lombardo PA
[Ti] Título:Anthropometry, Race, and Eugenic Research: "Measurements of Growing Negro Children" at the Tuskegee Institute, 1932­1944.
[So] Source:Clio Med;95:215-39, 2016.
[Is] ISSN:0045-7183
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Mh] Termos MeSH primário: Afroamericanos/história
Antropometria/história
Eugenia (Ciência)/história
Experimentação Humana/história
[Mh] Termos MeSH secundário: Academias e Institutos/história
Alabama
Criança
História do Século XX
Seres Humanos
Sífilis/história
Estados Unidos
United States Public Health Service
[Pt] Tipo de publicação:HISTORICAL ARTICLE; JOURNAL ARTICLE
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180215
[Lr] Data última revisão:
180215
[Sb] Subgrupo de revista:IM; QIS
[Da] Data de entrada para processamento:180126
[St] Status:MEDLINE


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[PMID]:28657352
[Au] Autor:Jalayer M; Pour-Rouholamin M; Zhou H
[Ad] Endereço:a Center for Advanced Infrastructure and Transportation (CAIT), Rutgers , The State University of New Jersey , Piscataway , New Jersey.
[Ti] Título:Wrong-way driving crashes: A multiple correspondence approach to identify contributing factors.
[So] Source:Traffic Inj Prev;19(1):35-41, 2018 01 02.
[Is] ISSN:1538-957X
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:OBJECTIVE: Wrong-way driving (WWD) crashes result in 1.34 fatalities per fatal crash, whereas for other non-WWD fatal crashes this number drops to 1.10. As such, further in-depth investigation of WWD crashes is necessary. The objective of this study is 2-fold: to identify the characteristics that best describe WWD crashes and to verify the factors associated with WWD occurrence. METHODS: We collected and analyzed 15 years of crash data from the states of Illinois and Alabama. The final data set includes 398 WWD crashes. The rarity of WWD events and the consequently small sample size of the crash database significantly influence the application of conventional log-linear models in analyzing the data, because they use maximum-likelihood estimation. To overcome this issue, in this study, we employ multiple correspondence analysis (MCA) to define the structure of the crash data set and identify the significant contributing factors to WWD crashes on freeways. RESULTS: The results of the present study specify various factors that characterize and influence the probability of WWD crashes and can thus lead to the development of several safety countermeasures and recommendations. According to the obtained results, factors such as driver age, driver condition, roadway surface conditions, and lighting conditions were among the most significant contributors to WWD crashes. CONCLUSIONS: Despite many other methods that identify only the contributing factors, this method can identify possible associations between various contributing factors. This is an inherent advantage of the MCA method, which can provide a major opportunity for state departments of transportation (DOTs) to select safety countermeasures that are associated with multiple safety benefits.
[Mh] Termos MeSH primário: Acidentes de Trânsito/estatística & dados numéricos
Condução de Veículo/estatística & dados numéricos
[Mh] Termos MeSH secundário: Adulto
Idoso
Alabama
Bases de Dados Factuais
Feminino
Seres Humanos
Illinois
Funções Verossimilhança
Masculino
Meia-Idade
Fatores de Risco
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180202
[Lr] Data última revisão:
180202
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170629
[St] Status:MEDLINE
[do] DOI:10.1080/15389588.2017.1347260


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[PMID]:28902904
[Au] Autor:Osland MJ; Griffith KT; Larriviere JC; Feher LC; Cahoon DR; Enwright NM; Oster DA; Tirpak JM; Woodrey MS; Collini RC; Baustian JJ; Breithaupt JL; Cherry JA; Conrad JR; Cormier N; Coronado-Molina CA; Donoghue JF; Graham SA; Harper JW; Hester MW; Howard RJ; Krauss KW; Kroes DE; Lane RR; McKee KL; Mendelssohn IA; Middleton BA; Moon JA; Piazza SC; Rankin NM; Sklar FH; Steyer GD; Swanson KM; Swarzenski CM; Vervaeke WC; Willis JM; Wilson KV
[Ad] Endereço:U.S. Geological Survey, Lafayette, Louisiana, United States of America.
[Ti] Título:Assessing coastal wetland vulnerability to sea-level rise along the northern Gulf of Mexico coast: Gaps and opportunities for developing a coordinated regional sampling network.
[So] Source:PLoS One;12(9):e0183431, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Coastal wetland responses to sea-level rise are greatly influenced by biogeomorphic processes that affect wetland surface elevation. Small changes in elevation relative to sea level can lead to comparatively large changes in ecosystem structure, function, and stability. The surface elevation table-marker horizon (SET-MH) approach is being used globally to quantify the relative contributions of processes affecting wetland elevation change. Historically, SET-MH measurements have been obtained at local scales to address site-specific research questions. However, in the face of accelerated sea-level rise, there is an increasing need for elevation change network data that can be incorporated into regional ecological models and vulnerability assessments. In particular, there is a need for long-term, high-temporal resolution data that are strategically distributed across ecologically-relevant abiotic gradients. Here, we quantify the distribution of SET-MH stations along the northern Gulf of Mexico coast (USA) across political boundaries (states), wetland habitats, and ecologically-relevant abiotic gradients (i.e., gradients in temperature, precipitation, elevation, and relative sea-level rise). Our analyses identify areas with high SET-MH station densities as well as areas with notable gaps. Salt marshes, intermediate elevations, and colder areas with high rainfall have a high number of stations, while salt flat ecosystems, certain elevation zones, the mangrove-marsh ecotone, and hypersaline coastal areas with low rainfall have fewer stations. Due to rapid rates of wetland loss and relative sea-level rise, the state of Louisiana has the most extensive SET-MH station network in the region, and we provide several recent examples where data from Louisiana's network have been used to assess and compare wetland vulnerability to sea-level rise. Our findings represent the first attempt to examine spatial gaps in SET-MH coverage across abiotic gradients. Our analyses can be used to transform a broadly disseminated and unplanned collection of SET-MH stations into a coordinated and strategic regional network. This regional network would provide data for predicting and preparing for the responses of coastal wetlands to accelerated sea-level rise and other aspects of global change.
[Mh] Termos MeSH primário: Mudança Climática
Ecossistema
Monitoramento Ambiental/normas
Água do Mar
Zonas Úmidas
[Mh] Termos MeSH secundário: Alabama
Monitoramento Ambiental/métodos
Florida
Golfo do México
Serviços de Informação/organização & administração
Serviços de Informação/normas
Louisiana
Mississippi
Projetos de Pesquisa/normas
Amostragem
Texas
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171121
[Lr] Data última revisão:
171121
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170914
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0183431


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[PMID]:28840797
[Au] Autor:Kämpfer P; Busse HJ; McInroy JA; Glaeser SP
[Ad] Endereço:1​Institut für Angewandte Mikrobiologie, Universität Giessen, Giessen, Germany.
[Ti] Título:Flavobacterium gossypii sp. nov. isolated from the root tissue of field-grown cotton.
[So] Source:Int J Syst Evol Microbiol;67(9):3345-3350, 2017 Sep.
[Is] ISSN:1466-5034
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:A yellow-pigmented bacterial strain, JM-222T, isolated from the root tissue of field-grown cotton (Gossypium hirsutum) in Auburn, Alabama, USA, was studied for its taxonomic allocation. Cells of the isolate were rod-shaped and Gram-stain-negative. A blast analysis using the EzTaxon database showed that strain JM-222T shared highest 16S rRNA gene sequence similarity with the type strain of Flavobacterium endophyticum (98.9 %) followed by Flavobacterium qiangtangense (96.7 %). 16S rRNA gene sequence similarities to all other Flavobacterium species were below 95 %. The fatty acid profile of strain JM-222T consisted of the major fatty acids C15 : 0, iso-C15 : 0, iso-C15 : 0 2-OH/C16 : 1ω7c and iso-C17 : 0 3-OH. Major compounds in the polar lipid profile were phosphatidylethanolamine and several unidentified lipids. The quinone system consisted predominantly of menaquinone MK-6. The polyamine pattern consisted of the major compound sym-homospermidine and only minor amounts of other polyamines. These data and the differential biochemical and chemotaxonomic properties showed that the isolate JM-222T represents a novel species of the genus Flavobacterium, for which the name Flavobacterium gossypii sp. nov. is proposed. The type strain is JM-222T (LMG 28821T=CCM 8610T).
[Mh] Termos MeSH primário: Flavobacterium/classificação
Gossypium/microbiologia
Filogenia
Raízes de Plantas/microbiologia
[Mh] Termos MeSH secundário: Alabama
Técnicas de Tipagem Bacteriana
Composição de Bases
DNA Bacteriano/genética
Ácidos Graxos/química
Flavobacteriaceae/genética
Flavobacterium/genética
Flavobacterium/isolamento & purificação
Fosfatidiletanolaminas/química
RNA Ribossômico 16S/genética
Análise de Sequência de DNA
Espermidina/análogos & derivados
Espermidina/química
Vitamina K 2/análogos & derivados
Vitamina K 2/química
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Bacterial); 0 (Fatty Acids); 0 (Phosphatidylethanolamines); 0 (RNA, Ribosomal, 16S); 0IJ25X1H4R (sym-homospermidine); 11032-49-8 (Vitamin K 2); 39382-08-6 (phosphatidylethanolamine); 71ANL51TLA (menaquinone 6); U87FK77H25 (Spermidine)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170920
[Lr] Data última revisão:
170920
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170826
[St] Status:MEDLINE
[do] DOI:10.1099/ijsem.0.002115


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[PMID]:28822395
[Au] Autor:Quang C; Hill S; Blair S; Dyess DL; Liles JS
[Ti] Título:Patient and Tumor Disparities in Breast Cancer Based on Insurance Status.
[So] Source:Am Surg;83(8):875-880, 2017 Aug 01.
[Is] ISSN:1555-9823
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:This study seeks to determine whether uninsured breast cancer patients are more likely to present with advanced disease relative to insured patients. We retrospectively reviewed newly diagnosed breast cancer patients over a 27-month period. Patients were sorted based on insurance status at diagnosis. Demographic and tumor-specific data were collected and analyzed using nonparametric testing. We identified 276 breast tumors in 260 patients. Out of the 260 patients, 71 patients (27.3%) were uninsured and were more likely to be black (P < 0.05), present with a breast-specific complaint rather than an abnormal mammogram (P < 0.05), and present with more advanced disease (52% stage II or worse vs 26.6% in the insured population; P < 0.01). Percentage of invasive carcinoma and tumor biology were independent of insurance status. Insured patients were more likely to receive surgery as first therapy (76.5 vs 46.0%, P < 0.01), whereas uninsured patients were more likely to receive chemotherapy suggesting multimodality treatment. Uninsured patients had a longer time to therapy initiation (56.0 days vs 44.5 days, P < 0.05). Our study confirms that uninsured patients present with higher stage disease are more likely to have breast-specific complaints and are more likely to require chemotherapy as first-line treatment confirming the under-utility of screening mammography within our uninsured patients.
[Mh] Termos MeSH primário: Neoplasias da Mama/terapia
Disparidades nos Níveis de Saúde
Cobertura do Seguro
[Mh] Termos MeSH secundário: Adulto
Idoso
Idoso de 80 Anos ou mais
Alabama
Neoplasias da Mama/epidemiologia
Neoplasias da Mama/patologia
Terapia Combinada
Grupos de Populações Continentais
Feminino
Seres Humanos
Meia-Idade
Estadiamento de Neoplasias
Estudos Retrospectivos
Adulto Jovem
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170914
[Lr] Data última revisão:
170914
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170821
[St] Status:MEDLINE


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[PMID]:28768558
[Au] Autor:Li L; Luther M; Macklin K; Pugh D; Li J; Zhang J; Roberts J; Kaltenboeck B; Wang C
[Ad] Endereço:Thompson Bishop Sparks State Diagnostic Laboratory,Auburn, AL,USA.
[Ti] Título:Chlamydia gallinacea: a widespread emerging Chlamydia agent with zoonotic potential in backyard poultry.
[So] Source:Epidemiol Infect;145(13):2701-2703, 2017 10.
[Is] ISSN:1469-4409
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Chlamydia gallinacea, a new chlamydial agent, has been reported in four European countries as well as Argentina and China. Experimentally infected chickens with C. gallinacea in previous study showed no clinical signs but had significantly reduced gains in body weight (6·5-11·4%). Slaughterhouse workers exposed to infected chickens have developed atypical pneumonia, indicating C. gallinacea is likely a zoonotic agent. In this study, FRET-PCR confirmed that C. gallinacea was present in 12·4% (66/531) of oral-pharyngeal samples from Alabama backyard poultry. Phylogenetic comparisons based on ompA variable domain showed that 16 sequenced samples represented 14 biotypes. We report for the first time the presence of C. gallinacea in North America, and this warrants further research on the organism's pathogenicity, hosts, transmission, and zoonotic potential.
[Mh] Termos MeSH primário: Galinhas
Infecções por Chlamydia/veterinária
Chlamydia/isolamento & purificação
Doenças Transmissíveis Emergentes/veterinária
Doenças das Aves Domésticas/epidemiologia
[Mh] Termos MeSH secundário: Alabama/epidemiologia
Animais
Chlamydia/genética
Infecções por Chlamydia/epidemiologia
Infecções por Chlamydia/microbiologia
Doenças Transmissíveis Emergentes/epidemiologia
Doenças Transmissíveis Emergentes/microbiologia
Reação em Cadeia da Polimerase/veterinária
Doenças das Aves Domésticas/microbiologia
RNA Bacteriano/genética
RNA Ribossômico 16S/genética
RNA Ribossômico 23S/genética
Análise de Sequência de DNA/veterinária
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (RNA, Bacterial); 0 (RNA, Ribosomal, 16S); 0 (RNA, Ribosomal, 23S)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:171125
[Lr] Data última revisão:
171125
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170804
[St] Status:MEDLINE
[do] DOI:10.1017/S0950268817001650


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[PMID]:28705708
[Au] Autor:Truong M; Rais-Bahrami S; Nix JW; Messing EM; Miyamoto H; Gordetsky JB
[Ad] Endereço:Department of Urology, University of Rochester Medical Center, Rochester 14642, NY, USA.
[Ti] Título:Perineural invasion by prostate cancer on MR/US fusion targeted biopsy is associated with extraprostatic extension and early biochemical recurrence after radical prostatectomy.
[So] Source:Hum Pathol;66:206-211, 2017 Aug.
[Is] ISSN:1532-8392
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:In recent years, multiparametric magnetic resonance imaging and magnetic resonance/ultrasound fusion targeted biopsy (TB) have become more widely adopted to aid in prostate cancer (PCa) detection. Previously, TB has been found to increase the yield of clinically significant PCa and is more likely to sample the index tumor compared with traditional 12-core extended sextant biopsies. Currently, the prognostic significance of perineural invasion (PNI) when identified on TB (PNI-TB) is unknown. We identified 95 men at 2 tertiary referral centers who underwent TB followed by radical prostatectomy between January 2014 and January 2017. Clinical, radiological, and pathological variables were retrospectively reviewed. PNI was identified on TB in 27 of 95 (28.4%) patients. On multivariable logistic regression, independent predictors of extraprostatic extension were prostate-specific antigen, TB maximum % core involvement, and PNI-TB (all P<.05). Furthermore, Kaplan-Meier analysis demonstrated that PNI-TB was associated with early biochemical recurrence events within 12 months after prostatectomy (log-rank P=.049). Given the increasing adoption of TB for PCa detection in clinical practice, PNI-TB may be useful for PCa risk stratification.
[Mh] Termos MeSH primário: Biópsia Guiada por Imagem/métodos
Calicreínas/sangue
Imagem por Ressonância Magnética Intervencionista
Nervos Periféricos/patologia
Antígeno Prostático Específico/sangue
Prostatectomia
Neoplasias da Próstata/patologia
Neoplasias da Próstata/cirurgia
Ultrassonografia de Intervenção
[Mh] Termos MeSH secundário: Idoso
Alabama
Distribuição de Qui-Quadrado
Seres Humanos
Estimativa de Kaplan-Meier
Modelos Logísticos
Masculino
Meia-Idade
Imagem Multimodal
Análise Multivariada
Invasividade Neoplásica
New York
Valor Preditivo dos Testes
Modelos de Riscos Proporcionais
Neoplasias da Próstata/sangue
Neoplasias da Próstata/diagnóstico por imagem
Estudos Retrospectivos
Medição de Risco
Fatores de Risco
Fatores de Tempo
Resultado do Tratamento
Carga Tumoral
[Pt] Tipo de publicação:JOURNAL ARTICLE; MULTICENTER STUDY
[Nm] Nome de substância:
EC 3.4.21.- (Kallikreins); EC 3.4.21.- (kallikrein-related peptidase 3, human); EC 3.4.21.77 (Prostate-Specific Antigen)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171002
[Lr] Data última revisão:
171002
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170715
[St] Status:MEDLINE


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[PMID]:28696147
[Au] Autor:Grodeska SM; Jones JL; Arias CR; Walton WC
[Ad] Endereço:1 Auburn University Shellfish Laboratory, School of Fisheries, Aquaculture & Aquatic Sciences, Auburn University, 150 Agassiz Street, Dauphin Island, Alabama 36528; and.
[Ti] Título:Effects of Desiccation Practices of Cultured Atlantic Oysters (Crassostrea virginica) on Vibrio spp. in Portersville Bay, Alabama, USA.
[So] Source:J Food Prot;80(8):1280-1287, 2017 Aug.
[Is] ISSN:1944-9097
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The expansion of off-bottom aquaculture to the Gulf of Mexico has raised public health concerns for human health officials. High temperatures in the Gulf of Mexico are associated with high levels of Vibrio parahaemolyticus and Vibrio vulnificus. Routine desiccation practices associated with off-bottom aquaculture expose oysters to ambient air, allowing Vibrio spp. to proliferate in the closed oyster. Currently, there is limited research on the length of time needed for Vibrio spp. levels in desiccated oysters to return to background levels, defined as the levels found in oysters that remain continually submersed and not exposed to ambient air. This study determined the time needed to return V. parahaemolyticus, V. vulnificus, and Vibrio cholerae levels to background levels in oysters exposed to the following desiccation practices: 3-h freshwater dip followed by 24-h ambient air exposure, 27-h ambient air exposure, and control. All oysters were submerged at least 2 weeks prior to the beginning of each trial, with the control samples remaining submerged for the duration of each trial. Vibrio spp. levels were enumerated from samples collected on days 0, 1, 2, 3, 7, 10, and 14 after resubmersion using a three-tube most-probable-number enrichment followed by BAX PCR. V. cholerae levels were frequently (92%) below the limit of detection at all times, so they were not statistically analyzed. V. parahaemolyticus and V. vulnificus levels in the 27-h ambient air exposure and the 3-h freshwater dip followed by 24-h ambient air exposure samples were significantly elevated compared with background samples. In most cases, the Vibrio spp. levels in oysters in both desiccation treatments remained elevated compared with background levels until 2 or 3 days post-resubmersion. However, there was one trial in which the Vibrio spp. levels did not return to background levels until day 7. The results of this study provide scientific support that oyster farmers should be required to implement a minimum 7-day resubmersion regimen. This length of time allowed the Vibrio spp. levels to become not significantly different across all treatments.
[Mh] Termos MeSH primário: Crassostrea/microbiologia
Dessecação
Contaminação de Alimentos/prevenção & controle
Vibrio parahaemolyticus/crescimento & desenvolvimento
Vibrio vulnificus/crescimento & desenvolvimento
[Mh] Termos MeSH secundário: Alabama
Animais
Baías
Contagem de Colônia Microbiana
Contaminação de Alimentos/análise
Seres Humanos
Ostreidae
Frutos do Mar/microbiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171016
[Lr] Data última revisão:
171016
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170712
[St] Status:MEDLINE
[do] DOI:10.4315/0362-028X.JFP-16-297



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