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1.
Emerg Infect Dis ; 29(5): 1073-1075, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-37081606

RESUMO

Melioidosis, caused by the soil-dwelling bacterium Burkholderia pseudomallei, is predicted to be endemic in Nigeria but is only occasionally reported. This report documents the systematic identification of the presence of B. pseudomallei and B. thailandensis in the soil across multiple states in Nigeria.


Assuntos
Burkholderia pseudomallei , Melioidose , Humanos , Burkholderia pseudomallei/genética , Melioidose/epidemiologia , Melioidose/microbiologia , Nigéria/epidemiologia , Microbiologia do Solo
2.
J Virol ; 96(12): e0048422, 2022 06 22.
Artigo em Inglês | MEDLINE | ID: mdl-35604217

RESUMO

Although antiretroviral therapy (ART) sustains potent suppression of plasma viremia in people with HIV-1 infection (PWH), reservoirs of viral persistence rekindle viral replication and viremia if ART is halted. Understanding the nature of viral reservoirs and their persistence mechanisms remains fundamental to further research aiming to eliminate them and achieve ART-free viral remission or virological cure. CD4+ T-cell models have helped to define the mechanisms that regulate HIV-1 latency as well as to identify potential latency manipulators, and we similarly hoped to extend this understanding to macrophages given the increasing evidence of a role for myeloid cells in HIV-1 persistence under ART (T. Igarashi, C. R. Brown, Y. Endo, A. Buckler-White, et al., Proc Natl Acad Sci U S A 98:658-663, 2001, https://doi.org/10.1073/pnas.98.2.658; J. M. Orenstein, C. Fox, and S. M. Wahl, Science 276:1857-1861, 1997, https://doi.org/10.1126/science.276.5320.1857). In the pursuit of a primary cell model of macrophage latency using monocyte-derived macrophages (MDMs), we observed that NF-κB inhibition, originally intended to promote synchronous entry into a latent state, led to an irreversible loss of proviral competence. Proviruses were refractory to latency reversal agents (LRAs), yet host cell functions such as phagocytic capacity and cytokine production remained intact. Even after NF-κB inhibition was relieved and NF-κB action was restored, proviruses remained refractory to reactivation. Agents that interfere with the NF-κB-HIV-1 axis in myeloid cells may provide an approach with which to render myeloid cell reservoirs inert. IMPORTANCE Although HIV-1 infection can be suppressed using antiretroviral therapy, it cannot yet be cured. This is because HIV-1 integrates itself into host cells and may become dormant but also remains ready to emerge from such reservoirs when antiretroviral therapy stops. The CD4+ T cell has been the most actively investigated cell type in reservoir research due to its prominent role in hosting HIV-1; however, HIV-1 can infect and fall latent in myeloid cells, and therefore, their role must also be assessed in pursuit of a cure. Here, we show that caffeic acid and resveratrol, two nontoxic chemicals, both of which interfere with the same set of host mechanisms, can each prevent HIV-1 reactivation from latency in myeloid cells even after either chemical is removed and previous cell functionality is restored. Strategies to interfere with latency underlie the future of HIV-1 cure research, and our findings help to focus such strategies on an important but often neglected cell type.


Assuntos
Infecções por HIV , HIV-1 , Células Mieloides , Provírus , Latência Viral , Linfócitos T CD4-Positivos , Infecções por HIV/virologia , HIV-1/fisiologia , Humanos , Células Mieloides/virologia , NF-kappa B/metabolismo , Provírus/fisiologia , Viremia
3.
Nucleic Acids Res ; 49(D1): D1207-D1217, 2021 01 08.
Artigo em Inglês | MEDLINE | ID: mdl-33264411

RESUMO

The Human Phenotype Ontology (HPO, https://hpo.jax.org) was launched in 2008 to provide a comprehensive logical standard to describe and computationally analyze phenotypic abnormalities found in human disease. The HPO is now a worldwide standard for phenotype exchange. The HPO has grown steadily since its inception due to considerable contributions from clinical experts and researchers from a diverse range of disciplines. Here, we present recent major extensions of the HPO for neurology, nephrology, immunology, pulmonology, newborn screening, and other areas. For example, the seizure subontology now reflects the International League Against Epilepsy (ILAE) guidelines and these enhancements have already shown clinical validity. We present new efforts to harmonize computational definitions of phenotypic abnormalities across the HPO and multiple phenotype ontologies used for animal models of disease. These efforts will benefit software such as Exomiser by improving the accuracy and scope of cross-species phenotype matching. The computational modeling strategy used by the HPO to define disease entities and phenotypic features and distinguish between them is explained in detail.We also report on recent efforts to translate the HPO into indigenous languages. Finally, we summarize recent advances in the use of HPO in electronic health record systems.


Assuntos
Ontologias Biológicas , Biologia Computacional/métodos , Bases de Dados Factuais , Doença/genética , Genoma , Fenótipo , Software , Animais , Modelos Animais de Doenças , Genótipo , Humanos , Recém-Nascido , Cooperação Internacional , Internet , Triagem Neonatal/métodos , Farmacogenética/métodos , Terminologia como Assunto
4.
Niger Postgrad Med J ; 30(2): 132-136, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37148115

RESUMO

Introduction: Otomycosis is a global disease, common in the world's tropical and subtropical regions. The diagnosis is clinical, but mycological examination is required for its confirmation. There is a paucity of published data on otomycosis particularly the aetiologic agents in Nigeria. This study aims to fill in this gap by assessing the clinical presentations, risk factors and aetiologic agents of otomycosis in our setting. Methods: This was a prospective study of 126 clinically diagnosed patients and 30 controls. Mycological analysis of debris and swab samples from their external auditory canal was carried out. Results: One hundred and twenty-six patients were recruited, with 162 ear samples collected. There was mycological confirmation of otomycosis in 100 (79.4%) patients (subjects) and 127 (78.4%) specimens. The subjects' age range was 1-80 years, 30.89 ± 21.15 mean age, and 29-year median age. The peak prevalent age of 1-10 years was statistically significant, P = 0.022. The common symptoms in the subjects were itching 86 (86%), ear blockage 84 (84%) and otalgia 73 (73%). Regular ear cleaning 67 (67.0%) was the most common risk factor. Noted aetiologic agents were Aspergillus species 81 (63.8%), Candida species 42 (33.1%) and Yeast 4 (3.1%). Aspergillus flavus (40/127; 31.5%) was the most common fungus isolated. Unilateral otomycosis 73 (73%) was more common than bilateral otomycosis 27 (27%). Conclusion: Otomycosis is common in all ages, and is a commonly unilateral disease. Regular ear cleaning is the most common risk factor. A. flavus was the most common aetiologic agent in this study.


Assuntos
Otomicose , Humanos , Lactente , Pré-Escolar , Criança , Adolescente , Adulto Jovem , Adulto , Pessoa de Meia-Idade , Idoso , Idoso de 80 Anos ou mais , Otomicose/epidemiologia , Otomicose/diagnóstico , Otomicose/microbiologia , Nigéria/epidemiologia , Estudos Prospectivos , Candida , Fatores de Risco
5.
Pediatr Transplant ; 26(3): e14213, 2022 05.
Artigo em Inglês | MEDLINE | ID: mdl-34967989

RESUMO

BACKGROUND: This study aimed to evaluate the transition to adult care program instituted for liver transplant recipients (LTRs) at a large tertiary pediatric hospital in Melbourne, Australia. Evaluation included the change in a Global Assessment Measure (GAM) before and after the transition program, satisfaction with the program, and measures of transition success including rejection rates and attendance at appointments post-transfer. We hypothesized that the introduction of our structured transition program would improve disease understanding, health system understanding, and self-care. We also hypothesized that those who had undergone the transition program would have lower failure to attend rates and lower rates of rejection than historical controls. METHODS: A LTR transition program was instituted at our service from 2013 to 2015. The program involved initial assessment of competencies with a Global Assessment Measure (GAM), followed by the introduction of a personalized goal setting program addressing issues identified in dedicated transition clinics. Assessment of competencies was compared between the commencement of the program and immediately prior to transfer. Patient satisfaction with the transition process was assessed at an interview 6-12 months after transfer to the adult service. Rejection rates and failure to attend rates were compared between the intervention group and a group of LTRs who did not receive the intervention. RESULTS: Twenty-eight LTRs participated in the study; 20 received the transition intervention and 8 served as controls. Within the intervention group, all domains of transition competency and reported anxiety regarding transferring had significantly improved at the conclusion of the intervention and all reported satisfaction with the transition program with most (81%) reporting readiness to transfer. There were no significant differences in rejection rates or failure to attend rates between those who did and did not receive the transition intervention. CONCLUSION: A longitudinal holistic transition program has the potential to positively impact the competencies and readiness of LTRs to successful transition and transfer to adult care.


Assuntos
Transplante de Fígado , Transição para Assistência do Adulto , Adulto , Austrália , Criança , Humanos , Autocuidado , Transplantados
6.
J Gen Intern Med ; 33(7): 1028-1034, 2018 07.
Artigo em Inglês | MEDLINE | ID: mdl-29404947

RESUMO

BACKGROUND: Through the Multi-Payer Advanced Primary Care Practice (MAPCP) Demonstration, Medicare, Medicaid, and private payers offered supplemental payments to 849 primary care practices that became patient-centered medical homes (PCMHs) in eight states; practices also received technical assistance and data reports. Average Medicare payments were capped at $10 per beneficiary per month in each state. OBJECTIVE: Since there was variation in the eight participating states' demonstration designs, experiences, and outcomes, we conducted a qualitative multi-case analysis to identify the key factors that differentiated states that were estimated to have generated net savings for Medicare from states that did not. PARTICIPANTS: States' MAPCP Demonstration initiatives were comprehensively profiled in case studies based on secondary document review, three rounds of annual interviews with state staff, payers, practices, and other stakeholders, and other data sources. APPROACH: Case study findings were summarized in a case-ordered predictor-outcome matrix, which identified the presence or absence of key demonstration design features and experiences and arrayed states based on the amount of net savings or losses they generated for Medicare. We then used this matrix to identify initiative features that were present in at least three of the four states that generated net savings and absent from at least three of the four states that did not generate savings. RESULTS: A majority of the states that generated net savings: required practices to be recognized PCMHs to enter the demonstration, did not allow late entrants into the demonstration, used a consistent demonstration payment model across participating payers, and offered practices opportunities to earn performance bonuses. Practices in states that generated net savings also tended to report receiving the demonstration payments and bonuses they expected to receive, without any issues. CONCLUSIONS: Designers of future PCMH initiatives may increase their likelihood of generating net savings by incorporating the demonstration features we identified.


Assuntos
Redução de Custos/economia , Gastos em Saúde , Medicare/economia , Assistência Centrada no Paciente/economia , Atenção Primária à Saúde/economia , Pesquisa Qualitativa , Redução de Custos/métodos , Humanos , Análise Multivariada , Assistência Centrada no Paciente/métodos , Atenção Primária à Saúde/métodos , Estados Unidos/epidemiologia
7.
Jt Comm J Qual Patient Saf ; 44(1): 12-22, 2018 01.
Artigo em Inglês | MEDLINE | ID: mdl-29290242

RESUMO

BACKGROUND: The most frequently pursued intervention in the $100 million, 18-state Children's Health Insurance Program Reauthorization Act of 2009 (CHIPRA) quality demonstration (2010-2015) was quality improvement collaboratives, which 12 states offered to more than 300 primary care practices. A study was conducted to identify which aspects of these collaboratives were viewed by organizers and participants as working well and which were not. METHODS: Some 223 interviews were conducted in these states near the end of their collaboratives. Interview notes were coded and analyzed to identify trends. RESULTS: Aspects of collaboratives that interviewees valued were aimed at attracting participation, maintaining engagement, or facilitating learning. To attract participants, interviewees recommended offering maintenance-of-certification credits, aligning content with existing financial incentives, hiring a knowledgeable collaborative organizer of the same medical specialty as participants, and having national experts speak at meetings. Positively viewed approaches for maintaining engagement included meeting one-on-one with practices to articulate participation expectations in advance, tying disbursal of stipends to meeting participation expectations, and soliciting feedback and making mid-course adjustments. To facilitate learning, interviewees liked learning from other practices, interactive exercises, practical handouts, and meeting face-to-face with new referral partners. CONCLUSION: Prior studies have tended to focus on strategies to maintain engagement. The interviewees valued these features but also valued aspects of collaboratives that attracted participants in the first place and facilitated learning after participants were actively engaged. The findings suggest that a wider array of features may be important when developing or evaluating collaboratives. Collaborative organizers may benefit from incorporating the recommended collaborative features into their own collaboratives.


Assuntos
Children's Health Insurance Program , Melhoria de Qualidade , Criança , Comportamento Cooperativo , Humanos
8.
Proc Natl Acad Sci U S A ; 112(45): E6148-57, 2015 Nov 10.
Artigo em Inglês | MEDLINE | ID: mdl-26504246

RESUMO

Mitochondria play an important role in numerous diseases as well as normative aging. Severe reduction in mitochondrial function contributes to childhood disorders such as Leigh Syndrome, whereas mild disruption can extend the lifespan of model organisms. The Caenorhabditis elegans isp-1 gene encodes the Rieske iron-sulfur protein subunit of cytochrome c oxidoreductase (complex III of the electron transport chain). The partial loss of function allele, isp-1(qm150), leads to several pleiotropic phenotypes. To better understand the molecular mechanisms of ISP-1 function, we sought to identify genetic suppressors of the delayed development of isp-1(qm150) animals. Here we report a series of intragenic suppressors, all located within a highly conserved six amino acid tether region of ISP-1. These intragenic mutations suppress all of the evaluated isp-1(qm150) phenotypes, including developmental rate, pharyngeal pumping rate, brood size, body movement, activation of the mitochondrial unfolded protein response reporter, CO2 production, mitochondrial oxidative phosphorylation, and lifespan extension. Furthermore, analogous mutations show a similar effect when engineered into the budding yeast Rieske iron-sulfur protein Rip1, revealing remarkable conservation of the structure-function relationship of these residues across highly divergent species. The focus on a single subunit as causal both in generation and in suppression of diverse pleiotropic phenotypes points to a common underlying molecular mechanism, for which we propose a "spring-loaded" model. These observations provide insights into how gating and control processes influence the function of ISP-1 in mediating pleiotropic phenotypes including developmental rate, movement, sensitivity to stress, and longevity.


Assuntos
Proteínas de Caenorhabditis elegans/química , Proteínas de Caenorhabditis elegans/genética , Complexo III da Cadeia de Transporte de Elétrons/química , Complexo III da Cadeia de Transporte de Elétrons/genética , Pleiotropia Genética/genética , Modelos Moleculares , Fenótipo , Animais , Caenorhabditis elegans , Proteínas de Caenorhabditis elegans/fisiologia , Tamanho da Ninhada/genética , Complexo III da Cadeia de Transporte de Elétrons/fisiologia , Crescimento e Desenvolvimento/genética , Longevidade/genética , Microscopia de Fluorescência , Movimento/fisiologia , Mutagênese , Mutação/genética , Complexo de Proteínas Formadoras de Poros Nucleares/genética , Engenharia de Proteínas , Proteínas de Saccharomyces cerevisiae/genética , Estresse Fisiológico/genética
9.
J Clin Microbiol ; 55(4): 1032-1036, 2017 04.
Artigo em Inglês | MEDLINE | ID: mdl-28077700

RESUMO

Alere i RSV is a novel rapid test which applies a nicking enzyme amplification reaction to detect respiratory syncytial virus in point-of-care settings. In this study, we evaluated the Alere i RSV assay by using frozen nasopharyngeal swab samples that were collected in viral transport medium from children hospitalized with acute respiratory tract infection during the 2015-2016 winter season. Alere i RSV assay results were compared to those for Altona RealStar RSV real-time reverse transcription-PCR (RT-PCR). We found that the overall sensitivity and specificity of the Alere i RSV test was 100% (95% confidence intervals [CI], 93% to 100%) and 97% (95% CI, 89% to 100%), respectively. Positive samples were identified within 5 to 7 min from sample collection. Overall, the Alere i RSV test performed well compared to the RT-PCR assay and has the potential to facilitate the detection of RSV in point-of-care settings.


Assuntos
Hospitalização , Técnicas de Diagnóstico Molecular/métodos , Técnicas de Amplificação de Ácido Nucleico/métodos , Sistemas Automatizados de Assistência Junto ao Leito , Vírus Sinciciais Respiratórios/isolamento & purificação , Infecções Respiratórias/diagnóstico , Adolescente , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Masculino , Estudos Prospectivos , Sensibilidade e Especificidade , Fatores de Tempo
10.
Med J Aust ; 204(10): 381-3, 2016 Jun 06.
Artigo em Inglês | MEDLINE | ID: mdl-27256649

RESUMO

The 20th anniversary of the National Firearms Agreement (NFA) offers lessons for mental health and public health. Along with similar international legislation, the NFA exemplifies how firearms regulation can prevent firearm mortality and injuries. The gun lobby claims that mental illness underpins gun violence and should be a key site for intervention. A modest but significant link exists between mental disorders and community violence. However, the vast majority of mentally ill individuals are not violent. Despite media portrayals of their dangerousness, they are more likely to be victims of violence and of suicide. Most violent individuals do not have mental illness, and most mass murderers do not have identifiable severe mental illness. Many have maladaptive personality configurations. Gun availability and gun ownership, not severe mental illness, determines most gun homicides. Following recent gun massacres in the United States, there have been calls for better resourcing of mental health services to help identify and respond to those at risk and to regulate firearms access. Screening mentally ill populations for violence risk is misguided. However, clinicians can play a key role in working with legal authorities to monitor and assist regulation of firearm access, especially among high risk populations. Clinician involvement must be complemented by wider gun control measures. The gun lobby's turning the firearms availability debate into a question about whether people with mental illness histories should access such weapons is a calculated appeal to prejudice.


Assuntos
Armas de Fogo/legislação & jurisprudência , Homicídio/história , Manobras Políticas , Pessoas Mentalmente Doentes/estatística & dados numéricos , Violência/psicologia , Violência/estatística & dados numéricos , Austrália , História do Século XX , Humanos , Aplicação da Lei , Transtornos Mentais/diagnóstico , Prevenção do Suicídio
11.
Hum Organ ; 75(4): 315-325, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-30344335

RESUMO

Monitoring and evaluation (M&E) of international development programming is expected to produce "evidence-based" insight for both policy and practice. While supportive of evidence-based decision making, critics of contemporary M&E practice charge that it reflects the development industry's deepening audit culture, causing deleterious effects. I offer the example of a democratization program in postwar Angola to examine how the design and conduct of M&E in this case reinforced social boundaries and hierarchies of power among the program's own staff members. These professional staff hierarchies effectively barred ground-level evidence noted by implementation agents from being incorporated into the program's formal knowledge base. The case demonstrates that monitoring and evaluation procedures within development programs, and perhaps in other bureaucracies, must be examined for their social uses and effects among practitioners. These effects not only weaken the production of actionable knowledge for development but, by reinforcing social inequalities within the very industry tasked to combat them, also structurally threaten the endeavor.

12.
Cytotherapy ; 15(11): 1323-39, 2013 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-23992670

RESUMO

BACKGROUND AIMS: The Quantum® Cell Expansion System (Quantum; Terumo BCT, Inc, Lakewood, CO, USA) is a novel hollow fiber-based device that automates and closes the cell culture process, reducing labor intensive tasks such as manual cell culture feeding and harvesting. The manual cell selection and expansion processes for the production of clinical-scale quantities of bone marrow-derived human mesenchymal stromal cells (BM-hMSCs) have been successfully translated onto the Quantum platform previously. The formerly static, manual, in vitro process performed primarily on tissue culture polystyrene substrates may raise the question of whether BM-hMSCs cultured on a hollow fiber platform yields comparable cell quality. METHODS: A rigorous battery of assays was used to determine the genetic stability of BM-hMSCs selected and produced with the Quantum. In this study, genetic stability was determined by assessing spectral karyotype, micronucleus formation and tumorigenicity to resolve chromosomal aberrations in the stem cell population. Cell phenotype, adherent growth kinetics and tri-lineage differentiation were also evaluated. HMSC bone marrow aspirates, obtained from three approved donors, were expanded in parallel using T225 culture flasks and the Quantum. RESULTS: BM-hMSCs harvested from the Quantum demonstrated immunophenotype, morphology and tri-lineage differentiation capacity characteristics consistent with the International Society of Cell Therapy standard for hMSCs. Cell populations showed no malignant neoplastic formation in athymic mice 60 days post-transplant, no clonal chromosomal aberrations were observed and no DNA damage was found as measured by micronucleus formation. CONCLUSIONS: Quantum-produced BM-hMSCs are of comparable quality and demonstrate analogous genetic stability to BM-hMSCs cultured on tissue culture polystyrene substrates.


Assuntos
Instabilidade Genômica/genética , Células-Tronco Mesenquimais/citologia , Técnicas de Cultura de Tecidos/métodos , Adulto , Animais , Células da Medula Óssea/citologia , Carcinogênese , Diferenciação Celular , Linhagem Celular Tumoral , Proliferação de Células , Condrogênese , Feminino , Variação Genética/genética , Xenoenxertos , Humanos , Cariótipo , Masculino , Camundongos , Camundongos Nus , Transplante de Neoplasias , Adulto Jovem
13.
Sci Data ; 10(1): 16, 2023 01 06.
Artigo em Inglês | MEDLINE | ID: mdl-36609615

RESUMO

Promoting a transition to low-carbon energy systems to mitigate climate change requires an optimization of renewable energy (RE) planning. However, curated data for the most promising RE technologies, hydro-, wind and solar power, are missing, which limits data-based decision-making support. Here, a spatially explicit database for existing and proposed renewable power plants is provided: The Renewable Power Plant database for Africa (RePP Africa) encompasses 1074 hydro-, 1128 solar, and 276 wind power plant records. For each power plant, geographic coordinates, country, construction status, and capacity (in megawatt) are reported. The number of RePP Africa records exceeds the respective values in other existing open-access databases and matches available cumulative capacity data reported by international energy organizations best with deviations <13% for hydro-, <23% for wind, and <32% for solar power plants. This contemporary database is the most harmonized open-accessible reference source on RE power plants across Africa for stakeholders from science, (non-)governmental organizations, consulting, and industry; providing a fundamental data basis for the development of an integrated sustainable RE mix.

14.
Access Microbiol ; 5(10)2023.
Artigo em Inglês | MEDLINE | ID: mdl-37970086

RESUMO

The genus Burkholderia comprises Gram-negative bacteria that are metabolically complex and versatile, often thriving in hostile settings. Burkholderia pseudomallei , the causative agent of melioidosis, is a prominent member of the genus and a clinical pathogen in tropical and sub-tropical regions. This pathogen is well known for its multidrug resistance and possible bioweapon potential. There is currently no report of the pathogen from clinical specimens in Nigeria, which might be due to misdiagnosis with phenotypic assays. This study aims to explore the accuracy of the use of phenotypic assays to diagnose B. pseudomallei in Nigeria. Two hundred and seventeen clinical samples and 28 Gram-negative clinical isolates were collected and analysed using Ashdown's selective agar and monoclonal antibody-based latex agglutination. Species-level identification was achieved using the analytical profile index (API) 20NE system. The susceptibility of the isolates to nine different antimicrobial agents was determined using the disc diffusion method. A total of seventy-four culture-positive isolates were obtained using Ashdown's selective agar. Twenty-two of these isolates were believed to be B. pseudomallei through the monoclonal antibody-based latex agglutination test and the API 20NE system subsequently identified 14 isolates as Burkholderia . The predominant Burkholderia species was B. cepacia with an isolation rate of 30.8 % (8/26). No isolate was distinctively identified as B. pseudomallei but five isolates were strongly suspected to be B. pseudomallei with similarity indices ranging from 81.9-91.3 %. Other bacterial species with definitive identity include Aeromonas sp., Sphingomonas sp. and Pseudomonas aeruginosa . The antibiotic susceptibility results revealed an overall resistance to amoxicillin-clavullanic acid of 71.4 %, to cefepime of 33.3 %, to trimethoprim-sulfamethoxazole of 38.1 %, to piperacillin-tazobactam of 33.3 %, to imipenem of 66.7 %, to doxycycline of 57.1% and to ceftazidime of 66.7 %. The highest intermediate resistance was observed for cefepime and piperacillin-tazobactam with a value of 66.7 % each, while there was no intermediate resistance for gentamicin, colistin and imipenem. Our findings, therefore, show that phenotypic assays alone are not sufficient in the diagnosis of melioidosis. Additionally, they provide robust support for present and future decisions to expand diagnostic capability for melioidosis beyond phenotypic assays in low-resource settings.

15.
Vet Q ; 43(1): 1-10, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37589252

RESUMO

Recent research focused on farmed deer has exposed many knowledge gaps regarding health assessment protocols for white-tailed deer (WTD). The objectives of this study were to establish de novo blood analyte reference intervals for farmed WTD fawns at birth (1-2 days of age; n = 84) and again at weaning (76-125 days of age; n = 28), to compare data at birth and at weaning to understand how these analytes are affected by the intrinsic factors age and sex in clinically normal WTD fawns, and to compare between clinically normal and sick WTD weanlings (respiratory disease n = 12; orbivirus-infected n = 6). Reference intervals were established for WTD fawns at birth and weaning. Female WTD neonates had significantly higher red blood cell counts, hematocrit, and hemoglobin compared to males. Most blood analytes were significantly different in clinically normal WTD neonates compared to weanlings, suggesting an effect of age. The observed sex- and age-related variations in WTD highlight the need to establish reference intervals that account for intrinsic factors. The comparison of clinically normal and sick WTD weanlings in this study identified higher MCHC and absolute monocytes in sick weanlings but these findings were presumably not biologically relevant given the small sample size for sick fawns. While the reference interval data presented herein will be useful for the veterinary care of WTD fawns at critical time periods in a high-density farm setting, this study also demonstrates the need to identify more sensitive and specific biomarkers for the assessment of health status in farmed WTD with specific underlying diseases.


Assuntos
Cervos , Feminino , Masculino , Animais , Desmame , Fazendas , Fatores Etários
16.
Animals (Basel) ; 11(1)2021 Jan 16.
Artigo em Inglês | MEDLINE | ID: mdl-33467117

RESUMO

Epizootic hemorrhagic disease virus (EHDV) causes serious disease in wild and privately ranched white-tailed deer (Odocoileus virginianus) in the United States. In Florida, there is high EHDV prevalence, yet no treatments. There are few management strategies for the disease due to limited knowledge of virus-vector-host interactions. We conducted a telemetry study on white-tailed deer to examine resource use by wild and ranched animals in the Florida panhandle during the 2016 transmission risk period. We built generalized linear mixed models (GLMMs) to estimate resource selection and map habitat preferences for wild and ranched deer in the study area to reveal how second-order selection may relate to higher disease prevalence in ranched deer. Wild deer preferred areas closer to tertiary roads and supplementary food sources but farther from permanent water. Ranched deer selected bottomland mixed forest and areas closer to tertiary roads, supplementary food sources, and permanent water. Ranched deer behaviors may increase the likelihood of EHDV vector encounters, as these deer selected preferred habitats of several putative vector species, which may increase vector blood meal success and viral transmission risk. Disparate resource selection behaviors may be a factor in observed differential EHDV exposure risk between ranched and wild white-tailed deer in Florida.

17.
Front Public Health ; 9: 690067, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34778164

RESUMO

Blue Shield of California's Community Health Advocate Program was created to support whole person-health needs by helping individuals of all socio-economic statuses navigate and access community resources, social services, and medical systems. Blue Shield's Health Reimagined team is partnering with medical providers, community resources centers, and community partners to provide intensive person-centered and technology-enabled care to patients, ensuring social needs are met while promoting health equity. A key aspect of the Health Reimagined initiative embeds Community Health Advocates (CHAs) within physician practices serving patients using a payor-agnostic approach, by which Blue Shield aims to increase access to social services and community resources, improve health outcomes, reduce medical costs, and improve overall patient experience. The purpose of this case study is to understand the provider's perspective of embedding a CHA into the care team and the resulting impact on the practice and patients. Blue Shield also sought to identify best practices and barriers of a CHA program within primary and specialty care practices. As part of an ongoing two-year mixed-methods impact evaluation (2019-2021), 10 semi-structured interviews were conducted with a total of 18 providers and office staff at five primary care and specialty practices where CHAs have been embedded. We also conducted two focus groups with the same five CHAs at different points in time. Several themes emerged from the provider, office staff, and CHA interviews. Provider practices found great value in adding a CHA to their care team as the CHA brings flexibility and continuity to patient care. They also found that having access to a CHA with shared life experiences of the communities they served is a key component to the program's success. Providers and staff reported a new understanding of the social determinants of health that impacts a patient's wellbeing with the embedding of a CHA in the care team. Overall, practitioners expressed high satisfaction with the CHA program. During the COVID-19 pandemic, CHAs have been critically important in care, as social needs have increased, and resources have shifted. The CHA program is constantly adapting to address challenges faced by all stakeholders and applying new knowledge to ensure best practices are implemented within the CHA program.


Assuntos
COVID-19 , Agentes Comunitários de Saúde , Humanos , Pandemias , Atenção Primária à Saúde , SARS-CoV-2
18.
Mar Environ Res ; 162: 105103, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-33059212

RESUMO

Coastal ecosystems provide important ecosystem services for millions of people. Climate change is modifying coastal ecosystem food web structure and function and threatens these essential ecosystem services. We used a combination of two new and one existing ecosystem food web models and altered scenarios that are possible with climate change to quantify the impacts of climate change on ecosystem stability in three coastal bays in Maine, United States. We also examined the impact of climate change on bivalve fisheries and aquaculture. Our modeled scenarios explicitly considered the predicted effects of future climatic change and human intervention and included: 1) the influence of increased terrestrial dissolved organic carbon loading on phytoplankton biomass; 2) benthic community change driven by synergisms between climate change, historical overfishing, and increased species invasion; and 3) altered trophic level energy transfer driven by ocean warming and acidification. The effects of climate change strongly negatively influenced ecosystem energy flow and ecosystem stability and negatively affected modeled bivalve carrying capacity in each of our models along the Maine coast of the eastern United States. Our results suggest that the interconnected nature of ecosystem food webs make them extremely vulnerable to synergistic effects of climate change. To better inform fisheries and aquaculture management, the effects of climate change must be explicitly incorporated.


Assuntos
Ecossistema , Cadeia Alimentar , Animais , Aquicultura , Mudança Climática , Conservação dos Recursos Naturais , Pesqueiros , Humanos
19.
J Wildl Dis ; 56(4): 928-932, 2020 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-32544030

RESUMO

A wild population of white-tailed deer (Odocoileus virginianus) was surveyed for evidence of past or current epizootic hemorrhagic disease virus (EHDV) and current bluetongue virus (BTV) infections. We collected 121 blood samples from hunter-harvested or live-captured deer from two state-managed properties in northwest Florida, US; live captures were in support of a movement ecology study. Blood samples were tested for antibodies against titers to three EHDV serotypes (EHDV-1, EHDV-2, and EHDV-6), and multiplex quantitative reverse transcription PCR was used to identify the presence of EHDV or BTV viral RNA. Of these samples, 81% (98/121) tested seropositive for at least one of three serotypes of EHDV. Of those testing seropositive, 33% (40/121) contained antibodies for two serotypes, and 19% (24/121) contained antibodies for all three EHDV serotypes. Furthermore, results of generalized linear models indicated that the probability of infection by EHDV serotypes 1 and 6 increased with an animal's age. Our findings indicate that seroprevalence may be high for multiple serotypes in regions where these orbiviruses are endemic. These results could prove useful for managing disease risk in naïve deer populations.


Assuntos
Vírus Bluetongue/isolamento & purificação , Cervos/virologia , Vírus da Doença Hemorrágica Epizoótica/isolamento & purificação , Animais , Animais Selvagens , Feminino , Florida , Masculino , Estudos Soroepidemiológicos
20.
Anthropol Q ; 92(1): 203-229, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31602047

RESUMO

Nongovernmental organizations working in international development increasingly follow a neoliberalized management model, hiring professional employees to conduct the work of social transformation under a bureaucratic regime that sees the recruitment and retention of staff members as rational transactions between employer and employee. Such managerialist thinking holds that staff members represent bundles of skills and knowledge to be sorted and allocated according to the requirements of work, that they seek to exchange their labor for payment, and that they may justifiably be fired for misdeeds like misuse of materials, misrepresenting themselves, or poor work quality, as determined by the institution. I use the example of local staff members resigning and being fired from an international democratization intervention in postwar Angola to argue that some development professionals refuse to occupy such management-defined subject positions, asserting instead their independent moralities about the place of implementation staff in international development work. International development institutions misrecognize many such acts, however, leaving intact unequal relations of power within the very industry meant to combat such unequal relations on a global scale.

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