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1.
Annu Rev Genomics Hum Genet ; 23: 627-652, 2022 08 31.
Artigo em Inglês | MEDLINE | ID: mdl-35537469

RESUMO

Over the past two decades, the study of ancient genomes from Ancestral humans, or human paleogenomic research, has expanded rapidly in both scale and scope. Ethical discourse has subsequently emerged to address issues of social responsibility and scientific robusticity in conducting research. Here, we highlight and contextualize the primary sources of professional ethical guidance aimed at paleogenomic researchers. We describe the tension among existing guidelines, while addressing core issues such as consent, destructive research methods, and data access and management. Currently, there is a dissonance between guidelines that focus on scientific outcomes and those that hold scientists accountable to stakeholder communities,such as descendants. Thus, we provide additional tools to navigate the complexities of ancient DNA research while centering engagement with stakeholder communities in the scientific process.


Assuntos
Genômica , Paleontologia , DNA Antigo , Humanos , Consentimento Livre e Esclarecido , Pesquisadores
2.
MMWR Morb Mortal Wkly Rep ; 73(18): 411-416, 2024 May 09.
Artigo em Inglês | MEDLINE | ID: mdl-38722798

RESUMO

During July-September 2023, an outbreak of Shiga toxin-producing Escherichia coli O157:H7 illness among children in city A, Utah, caused 13 confirmed illnesses; seven patients were hospitalized, including two with hemolytic uremic syndrome. Local, state, and federal public health partners investigating the outbreak linked the illnesses to untreated, pressurized, municipal irrigation water (UPMIW) exposure in city A; 12 of 13 ill children reported playing in or drinking UPMIW. Clinical isolates were genetically highly related to one another and to environmental isolates from multiple locations within city A's UPMIW system. Microbial source tracking, a method to indicate possible contamination sources, identified birds and ruminants as potential sources of fecal contamination of UPMIW. Public health and city A officials issued multiple press releases regarding the outbreak reminding residents that UPMIW is not intended for drinking or recreation. Public education and UPMIW management and operations interventions, including assessing and mitigating potential contamination sources, covering UPMIW sources and reservoirs, indicating UPMIW lines and spigots with a designated color, and providing conspicuous signage to communicate risk and intended use might help prevent future UPMIW-associated illnesses.


Assuntos
Surtos de Doenças , Infecções por Escherichia coli , Escherichia coli O157 , Humanos , Utah/epidemiologia , Pré-Escolar , Escherichia coli O157/isolamento & purificação , Criança , Feminino , Masculino , Infecções por Escherichia coli/epidemiologia , Lactente , Adolescente , Irrigação Agrícola , Microbiologia da Água , Escherichia coli Shiga Toxigênica/isolamento & purificação
3.
J Gerontol Nurs ; 50(6): 17-24, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38815226

RESUMO

PURPOSE: Nursing homes were at the epicenter of the coronavirus disease 2019 (COVID-19) pandemic and continue to experience its effects, including staffing shortages. Although various studies have described the experiences of frontline staff, less has been published about the experiences of those in administrative positions. The current study explored factors impacting nursing home administrators' (NHAs) perceived preparedness, day-to-day operational challenges and needs, and career outlook in the context of the COVID-19 pandemic. METHOD: A cross-sectional online survey was administered via Qualtrics®, comprising demographic and facility-level questions and eight open-ended questions. Qualitative content and thematic analysis were used to code the text for themes describing administrator perceptions. RESULTS: NHAs (N = 60) described feeling unprepared, experiencing disruptions of day-to-day operations, and witnessing a decrease in resident well-being. NHAs also expressed a decrease in their own well-being due to COVID-19. Many NHAs expressed wanting to, planning to, or actively working toward leaving their role due to the consequences of COVID-19. CONCLUSION: As nursing homes continue to face staffing shortages, supporting those in the role of administrator becomes of urgent importance, as this role directly impacts staff and resident well-being. [Journal of Gerontological Nursing, 50(6), 17-24.].


Assuntos
COVID-19 , Casas de Saúde , COVID-19/enfermagem , COVID-19/epidemiologia , Humanos , Casas de Saúde/organização & administração , Estudos Transversais , Masculino , Feminino , Pessoa de Meia-Idade , Adulto , SARS-CoV-2 , Enfermeiros Administradores/psicologia , Pandemias , Inquéritos e Questionários
4.
Am J Hum Genet ; 107(2): 183-195, 2020 08 06.
Artigo em Inglês | MEDLINE | ID: mdl-32763189

RESUMO

Anticipating and addressing the social implications of scientific work is a fundamental responsibility of all scientists. However, expectations for ethically sound practices can evolve over time as the implications of science come to be better understood. Contemporary researchers who work with ancient human remains, including those who conduct ancient DNA research, face precisely this challenge as it becomes clear that practices such as community engagement are needed to address the important social implications of this work. To foster and promote ethical engagement between researchers and communities, we offer five practical recommendations for ancient DNA researchers: (1) formally consult with communities; (2) address cultural and ethical considerations; (3) engage communities and support capacity building; (4) develop plans to report results and manage data; and (5) develop plans for long-term responsibility and stewardship. Ultimately, every member of a research team has an important role in fostering ethical research on ancient DNA.


Assuntos
DNA Antigo/análise , Animais , Cuidados no Lar de Adoção , Humanos
5.
Geriatr Nurs ; 51: 360-368, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37104907

RESUMO

BACKGROUND: Nurse aide turnover in long-term care is projected to increase in the coming years. Guided by a social ecological framework, this scoping review systematically searched for peer-reviewed journal articles on nursing assistant or nurse aide turnover in nursing homes. METHODS: Using the PICO and PRISMA guidelines, 8 university-based library databases via EBSCOhost were searched to source peer-reviewed journal articles published between 2002 and 2022 on nurse aide turnover in nursing homes. RESULTS: The initial article search revealed 997 articles. After a three-stage article screening and removal process, a final sample of 43 articles (N = 43) remained. Guided by levels of influence, nurse aide turnover is found to be influenced by intrapersonal, interpersonal, institutional, community, and public policy level factors. CONCLUSION: Findings highlight the need for further research with nursing facility administrators and nurse aides to evaluate the complex interactions within long-term care nursing homes.


Assuntos
Assistentes de Enfermagem , Casas de Saúde , Humanos , Assistência de Longa Duração , Reorganização de Recursos Humanos
6.
Am J Hum Genet ; 104(2): 197-202, 2019 02 07.
Artigo em Inglês | MEDLINE | ID: mdl-30735660

RESUMO

Personalized genetic information is not widely utilized as a resource in learning environments, in part because of concerns about data privacy and the treatment of sensitive personal information. Here we describe the implementation of a curriculum centered on analyzing personalized genetic-ancestry test results during two-week science summer camps for middle-school-aged youth. Our research focused on how the examination of personalized DNA results affected learners' subsequent perceptions and performance, as measured by in-camp pre- and post-tests and surveys, analysis of voluntary student talk captured by audio and video recordings, and periodic one-on-one post-camp follow-ups. The curriculum was grounded in Next Generation Science Standards (NGSS) and focused around the central question of "Who am I?" Campers approached this question via guided lessons designed to shed light on their genetic uniqueness, the many attributes of their genotype and phenotype shared with others, their more distant genetic and evolutionary ancestries, and their roles as active agents in the healthy continuation of their lives. Data relevant to these questions came from edited subsets of ancestry-informative single-nucleotide polymorphisms (SNPs) and phenotype-related SNPs from the campers' genotype results, which their parents had received from a direct-to-consumer vendor. Our approaches to data privacy and the discovery, disclosure, and discussion of sensitive information on paternity, carrier status, and ancestry can be usefully applied and modified for many educational contexts. On the basis of our pilot implementations, we recommend additional and expanded research on how to incorporate personalized genetic ancestry information in a variety of learning contexts.


Assuntos
Currículo , Privacidade Genética , Testes Genéticos/ética , Testes Genéticos/métodos , Estudantes , Adolescente , Currículo/tendências , Feminino , Genótipo , Humanos , Masculino , Fenótipo , Medicina de Precisão , Marginalização Social , Estudantes/psicologia
7.
Am J Hum Genet ; 104(4): 578-595, 2019 04 04.
Artigo em Inglês | MEDLINE | ID: mdl-30951675

RESUMO

The evidence base supporting genetic and genomic sequence-variant interpretations is continuously evolving. An inherent consequence is that a variant's clinical significance might be reinterpreted over time as new evidence emerges regarding its pathogenicity or lack thereof. This raises ethical, legal, and financial issues as to whether there is a responsibility to recontact research participants to provide updates on reinterpretations of variants after the initial analysis. There has been discussion concerning the extent of this obligation in the context of both research and clinical care. Although clinical recommendations have begun to emerge, guidance is lacking on the responsibilities of researchers to inform participants of reinterpreted results. To respond, an American Society of Human Genetics (ASHG) workgroup developed this position statement, which was approved by the ASHG Board in November 2018. The workgroup included representatives from the National Society of Genetic Counselors, the Canadian College of Medical Genetics, and the Canadian Association of Genetic Counsellors. The final statement includes twelve position statements that were endorsed or supported by the following organizations: Genetic Alliance, European Society of Human Genetics, Canadian Association of Genetic Counsellors, American Association of Anthropological Genetics, Executive Committee of the American Association of Physical Anthropologists, Canadian College of Medical Genetics, Human Genetics Society of Australasia, and National Society of Genetic Counselors.


Assuntos
Dever de Recontatar , Responsabilidade pela Informação/legislação & jurisprudência , Testes Genéticos/normas , Genética Médica/normas , Genômica/normas , Austrália , Canadá , Ética em Pesquisa , Europa (Continente) , Genética Médica/educação , Genética Médica/ética , Humanos , Responsabilidade Legal , Sujeitos da Pesquisa , Sociedades Médicas , Estados Unidos
8.
Am J Bot ; 108(12): 2435-2451, 2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-34636420

RESUMO

PREMISE: Reconstructing the light environment and architecture of the plant canopy from the fossil record requires the use of proxies, such as those derived from cell wall undulation, cell size, and carbon isotopes. All approaches assume that plant taxa will respond predictably to changes in light environments. However, most species-level studies looking at cell wall undulation only consider "sun" or "shade" leaves; therefore, we need a fully quantitative taxon-specific method. METHODS: We quantified the response of cell wall undulation, cell size, and carbon isotopes of Platanus occidentalis using two experimental setups: (1) two growth chambers at low and high light and (2) a series of outdoor growth experiments using green and black shade cloth at different densities. We then developed and applied a proxy for daily light integral (DLI) to fossil Platanites leaves from two early Paleocene floras from the San Juan Basin in New Mexico. RESULTS: All traits responded to light environment. Cell wall undulation was the most useful trait for reconstructing DLI in the geological record. Median reconstructed DLI from early Paleocene leaves was ~44 mol m-2 d-1 , with values from 28 to 54 mol m-2 d-1 . CONCLUSIONS: Cell wall undulation of P. occidentalis is a robust, quantifiable measurement of light environment that can be used to reconstruct the paleo-light environment from fossil leaves. The distribution of high DLI values from fossil leaves may provide information on canopy architecture; indicating that either (1) most of the canopy mass is within the upper portion of the crown or (2) leaves exposed to more sunlight are preferentially preserved.


Assuntos
Fotossíntese , Árvores , Isótopos de Carbono , Folhas de Planta , Luz Solar
9.
Surg Endosc ; 35(8): 4539-4549, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-32909208

RESUMO

BACKGROUND: Reprocessed devices must be thoroughly cleaned prior to sterilization to ensure efficacy of sterilization agents. Many single-use devices are not designed to be thoroughly cleaned. Interlocking design features inherent to LigaSure™ vessel sealing devices may prevent thorough cleaning and promote accumulation of human tissue that cannot be removed. Thus, the aim of this study was to compare industry reprocessed and new LigaSure™ vessel sealing devices for organic material. METHODS: A total of 168, 84 new and 84 reprocessed, vessel sealing devices were disassembled and inspected for the presence of residual organic matter using visual, microscopic, and chemical analysis. Devices were randomized and test conductors blinded to group membership. Devices were aseptically disassembled and sent through visual inspection. Next, devices were either examined using light microscopy, scanning electron microscopy (SEM) or exposed to a solution that luminesces in the presence of hemoglobin. Additionally, 165 reprocessed devices were sent to a 3rd party lab for sterility testing via direct immersion culture for 14 days. RESULTS: Significant amounts of remnant organic material (C, N, O, S, Na, P) were observed with 81/84 reprocessed and 0/84 new devices failing inspection protocols. When tested for the presence of hemoglobin, only 1/12 reprocessed devices passed inspection. SEM of reprocessed devices revealed residues with liquid patterns and diffuse soiling with foreign material. Sterility testing of reprocessed devices revealed a sterility level < 6-3. CONCLUSIONS: The abundance of material resembling human tissue observed on reprocessed VSDs suggests inadequate cleaning prior to sterilization. Atomic and morphological analyses of the remnant materials suggest that bacterial biofilms could also be present. Additionally, surface degradation and release of reinforcing glass fibers from the device were observed. Devices designed for single use can harbor significant amounts of remnant material that likely interfere with the sterilization process.


Assuntos
Reutilização de Equipamento , Esterilização , Humanos , Microscopia Eletrônica de Varredura , Instrumentos Cirúrgicos
10.
Genet Med ; 22(1): 4-11, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-31402353

RESUMO

In recent years, third-party genetic interpretation services have emerged to help individuals understand their raw genetic data obtained from researchers, clinicians, and direct-to-consumer genetic testing companies. The objectives of these services vary but include matching users to genetic relatives, selling customized diet and fitness plans, and providing health risk assessments. As these services proliferate, concerns are being raised about their accuracy, safety, and privacy practices. Thus far, US regulatory agencies have not taken an official position with respect to third-party genetic interpretation services, which has caused uncertainty regarding whether and how they might be regulated. To clarify this area, we analyzed their potential oversight by four US agencies that generally have been active in the regulation of genetic testing services and information: the Centers for Medicare and Medicaid Services, the Food and Drug Administration, the Department of Health and Human Services' Office of Civil Rights, and the Federal Trade Commission. We conclude that the scope of federal jurisdiction over third-party genetic interpretation services-while limited-could be appropriate at this time, subject to agency clarification and appropriate exercise of oversight.


Assuntos
Serviços em Genética/organização & administração , Testes Genéticos/legislação & jurisprudência , Centers for Medicare and Medicaid Services, U.S. , Triagem e Testes Direto ao Consumidor , Serviços em Genética/legislação & jurisprudência , Humanos , Medição de Risco , Estados Unidos , United States Dept. of Health and Human Services , United States Federal Trade Commission , United States Food and Drug Administration
11.
Brain Behav Immun ; 87: 339-358, 2020 07.
Artigo em Inglês | MEDLINE | ID: mdl-31918004

RESUMO

Previous reports show that moderate prenatal alcohol exposure (PAE) poses a risk factor for developing neuropathic pain following adult-onset peripheral nerve injury in male rats. Recently, evidence suggests that immune-related mechanisms underlying neuropathic pain in females are different compared to males despite the fact that both sexes develop neuropathy of similar magnitude and duration following chronic constriction injury (CCI) of the sciatic nerve. Data suggest that the actions of peripheral T cells play a greater role in mediating neuropathy in females. The goal of the current study is to identify specificity of immune cell and cytokine changes between PAE and non-PAE neuropathic females by utilizing a well-characterized rodent model of sciatic nerve damage, in an effort to unmask unique signatures of immune-related factors underlying the risk of neuropathy from PAE. Cytokines typically associated with myeloid cell actions such as interleukin (IL)-1ß, tumor necrosis factor (TNF), IL-6, IL-4 and IL-10 as well as the neutrophil chemoattractant CXCL1, are examined. In addition, transcription factors and cytokines associated with various differentiated T cell subtypes are examined (anti-inflammatory FOXP3, proinflammatory IL-17A, IL-21, ROR-γt, interferon (IFN)-γ and T-bet). Lymphocyte function associated antigen 1 (LFA-1) is an adhesion molecule expressed on peripheral immune cells including T cells, and regulates T cell activation and extravasation into inflamed tissue regions. A potential therapeutic approach was explored with the goal of controlling proinflammatory responses in neuroanatomical regions critical for CCI-induced allodynia by blocking LFA-1 actions using BIRT377. The data show profound development of hindpaw allodynia in adult non-PAE control females following standard CCI, but not following minor CCI, while minor CCI generated allodynia in PAE females. The data also show substantial increases in T cell-associated proinflammatory cytokine mRNA and proteins, along with evidence of augmented myeloid/glial activation (mRNA) and induction of myeloid/glial-related proinflammatory cytokines, CCL2, IL-1ß and TNF in discrete regions along the pain pathway (damaged sciatic nerve, dorsal root ganglia; DRG, and spinal cord). Interestingly, the characteristic anti-inflammatory IL-10 protein response to nerve damage is blunted in neuropathic PAE females. Moreover, T cell profiles are predominantly proinflammatory in neuropathic Sac and PAE females, augmented levels of Th17-specific proinflammatory cytokines IL-17A and IL-21, as well as the Th1-specific factor, T-bet, are observed. Similarly, the expression of RORγt, a critical transcription factor for Th17 cells, is detected in the spinal cord of neuropathic females. Blocking peripheral LFA-1 actions with intravenous (i.v.) BIRT377 reverses allodynia in Sac and PAE rats, dampens myeloid (IL-1ß, TNF, CXCL1)- and T cell-associated proinflammatory factors (IL-17A and RORγt) and spinal glial activation. Moreover, i.v. BIRT377 treatment reverses the blunted IL-10 response to CCI observed only in neuropathic PAE rats and elevates FOXP3 in pain-reversed Sac rats. Unexpectedly, intrathecal BIRT377 treatment is unable to alter allodynia in either Sac or PAE neuropathic females. Together, these data provide evidence that: 1) fully differentiated proinflammatory Th17 cells recruited at the sciatic nerve, DRGs and lumbar spinal cord may interact with the local environment to shape the immune responses underlying neuropathy in female rats, and, 2) PAE primes peripheral and spinal immune responses in adult females. PAE is a risk factor in females for developing peripheral neuropathy after minor nerve injury.


Assuntos
Neuralgia , Efeitos Tardios da Exposição Pré-Natal , Animais , Feminino , Hiperalgesia , Antígeno-1 Associado à Função Linfocitária , Masculino , Gravidez , Ratos , Medula Espinal
12.
BMC Pediatr ; 20(1): 222, 2020 05 15.
Artigo em Inglês | MEDLINE | ID: mdl-32414353

RESUMO

BACKGROUND: Exome and genome sequencing are routinely used in clinical care and research. These technologies allow for the detection of pathogenic/likely pathogenic variants in clinically actionable genes. However, fueled in part by a lack of empirical evidence, controversy surrounds the provision of genetic results for adult-onset conditions to minors and their parents. We have designed a mixed-methods, longitudinal cohort study to collect empirical evidence to advance this debate. METHODS: Pediatric participants in the Geisinger MyCode® Community Health Initiative with available exome sequence data will have their variant files assessed for pathogenic/likely pathogenic variants in 60 genes designated as actionable by MyCode. Eight of these genes are associated with adult-onset conditions (Hereditary Breast and Ovarian Cancer Syndrome (HBOC), Lynch syndrome, MUTYH-associated polyposis, HFE-Associated Hereditary Hemochromatosis), while the remaining genes have pediatric onset. Prior to clinical confirmation of results, pediatric MyCode participants and their parents/legal guardians will be categorized into three study groups: 1) those with an apparent pathogenic/likely pathogenic variant in a gene associated with adult-onset disease, 2) those with an apparent pathogenic/likely pathogenic variant in a gene associated with pediatric-onset disease or with risk reduction interventions that begin in childhood, and 3) those with no apparent genomic result who are sex- and age-matched to Groups 1 and 2. Validated and published quantitative measures, semi-structured interviews, and a review of electronic health record data conducted over a 12-month period following disclosure of results will allow for comparison of psychosocial and behavioral outcomes among parents of minors (ages 0-17) and adolescents (ages 11-17) in each group. DISCUSSION: These data will provide guidance about the risks and benefits of informing minors and their family members about clinically actionable, adult-onset genetic conditions and, in turn, help to ensure these patients receive care that promotes physical and psychosocial health. TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT03832985. Registered 6 February 2019.


Assuntos
Revelação , Menores de Idade , Adolescente , Adulto , Pré-Escolar , Estudos de Coortes , Feminino , Genômica , Humanos , Lactente , Recém-Nascido , Estudos Longitudinais , Estudos Observacionais como Assunto , Pais , Literatura de Revisão como Assunto
13.
Acta Anaesthesiol Scand ; 63(6): 769-774, 2019 07.
Artigo em Inglês | MEDLINE | ID: mdl-30895598

RESUMO

BACKGROUND: Neuraxial analgesia is preferred over general anesthesia for cesarean delivery (CD), particularly in the presence of a labor epidural catheter. We hypothesize that care by a non-obstetric anesthesiologist as compared to care by an obstetric anesthesiologist is associated with a higher risk for use of general anesthesia for CD for patients with a preexisting labor epidural catheter. METHODS: To determine whether fellowship status of the covering anesthesiologist was a risk factor for general anesthesia, we retrospectively investigated the rate of general anesthesia use in patients with epidural catheters placed for labor analgesia who subsequently required CD. To standardize the practice environment under which these cases occurred, we examined only cases which occurred during coverage by the call team on nights, weekends, and holidays. RESULTS: There were 1820 cases in which a patient had epidural labor analgesia followed by a CD. Nine hundred and twelve cases were covered by an obstetric anesthesiologist and 908 cases were covered by a non-obstetric anesthesiologist. General anesthesia was used in only 16 of these cases. General anesthesia was more likely to be performed by non-obstetric fellowship trained anesthesiologists (1.54% or 14/908 compared to 0.22% or 2/912; P = 0.002). CONCLUSIONS: This investigation suggests that the presence of an obstetric fellowship-trained anesthesiologist may be a predictor of decreased rate of general anesthesia use in patients with preexisting indwelling labor epidural catheters.


Assuntos
Anestesia Geral/efeitos adversos , Anestesia Obstétrica/efeitos adversos , Anestesiologistas/educação , Cesárea , Bolsas de Estudo , Adulto , Analgesia Epidural , Feminino , Humanos , Modelos Logísticos , Gravidez , Estudos Retrospectivos , Risco
14.
Clin Infect Dis ; 67(6): 890-896, 2018 08 31.
Artigo em Inglês | MEDLINE | ID: mdl-29522200

RESUMO

Background: Nontyphoidal Salmonella is the leading cause of bacterial gastroenteritis in the United States. Meal replacement products containing raw and "superfood" ingredients have gained increasing popularity among consumers in recent years. In January 2016, we investigated a multistate outbreak of infections with a novel strain of Salmonella Virchow. Methods: Cases were defined using molecular subtyping procedures. Commonly reported exposures were compared with responses from healthy people interviewed in the 2006-2007 FoodNet Population Survey. Firm inspections and product traceback and testing were performed. Results: Thirty-five cases from 24 states were identified; 6 hospitalizations and no deaths were reported. Thirty-one of 33 (94%) ill people interviewed reported consuming a powdered supplement in the week before illness; of these, 30 (97%) reported consuming product A, a raw organic powdered shake product consumed as a meal replacement. Laboratory testing isolated the outbreak strain of Salmonella Virchow from leftover product A collected from ill people's homes, organic moringa leaf powder (an ingredient in product A), and finished product retained by the firm. Firm inspections at 3 facilities linked to product A production did not reveal contamination at the facilities. Traceback investigation identified that the contaminated moringa leaf powder was imported from South Africa. Conclusions: This investigation identified a novel outbreak vehicle and highlighted the potential risk with similar products not intended to be cooked by consumers before consuming. The company issued a voluntary recall of all implicated products. As this product has a long shelf life, the recall likely prevented additional illnesses.


Assuntos
Surtos de Doenças , Gastroenterite/microbiologia , Intoxicação Alimentar por Salmonella/epidemiologia , Salmonella/isolamento & purificação , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Técnicas de Tipagem Bacteriana , Criança , Pré-Escolar , Doenças Transmissíveis Importadas/microbiologia , Feminino , Gastroenterite/epidemiologia , Humanos , Lactente , Masculino , Pessoa de Meia-Idade , Pós , Alimentos Crus/microbiologia , Salmonella/genética , África do Sul , Estados Unidos/epidemiologia , Adulto Jovem
15.
J Clin Microbiol ; 56(11)2018 11.
Artigo em Inglês | MEDLINE | ID: mdl-30158193

RESUMO

Whole-genome sequencing (WGS) via next-generation sequencing (NGS) technologies is a powerful tool for determining the relatedness of bacterial isolates in foodborne illness detection and outbreak investigations. WGS has been applied to national outbreaks (for example, Listeria monocytogenes); however, WGS has rarely been used in smaller local outbreaks. The current study demonstrates the superior resolution of genetic and evolutionary relatedness generated by WGS data analysis, compared to pulsed-field gel electrophoresis (PFGE). The current study retrospectively applies WGS and a reference-free bioinformatic analysis to a Utah-specific outbreak of Campylobacter jejuni associated with raw milk and to a national multistate outbreak of Salmonella enterica subsp. enterica serovar Typhimurium associated with rotisserie chicken, both of which were characterized previously by PFGE. Together, these analyses demonstrate how a reference-free WGS workflow is not reliant on determination of a reference sequence, like WGS workflows that are based on single-nucleotide polymorphisms, or the need for curated allele databases, like multilocus sequence typing workflows.


Assuntos
Infecções por Campylobacter/microbiologia , Campylobacter jejuni/isolamento & purificação , Surtos de Doenças , Doenças Transmitidas por Alimentos/microbiologia , Genoma Bacteriano/genética , Infecções por Salmonella/microbiologia , Salmonella typhimurium/isolamento & purificação , Animais , Infecções por Campylobacter/epidemiologia , Campylobacter jejuni/classificação , Campylobacter jejuni/genética , Galinhas , Biologia Computacional , Eletroforese em Gel de Campo Pulsado , Fezes/microbiologia , Microbiologia de Alimentos , Doenças Transmitidas por Alimentos/epidemiologia , Humanos , Leite/microbiologia , Filogenia , Produtos Avícolas/microbiologia , Estudos Retrospectivos , Infecções por Salmonella/epidemiologia , Salmonella typhimurium/classificação , Salmonella typhimurium/genética , Estados Unidos/epidemiologia , Sequenciamento Completo do Genoma
16.
Genet Med ; 20(5): 554-558, 2018 04.
Artigo em Inglês | MEDLINE | ID: mdl-29261187

RESUMO

PurposeThe clinical utility of screening unselected individuals for pathogenic BRCA1/2 variants has not been established. Data on cancer risk management behaviors and diagnoses of BRCA1/2-associated cancers can help inform assessments of clinical utility.MethodsWhole-exome sequences of participants in the MyCode Community Health Initiative were reviewed for pathogenic/likely pathogenic BRCA1/2 variants. Clinically confirmed variants were disclosed to patient-participants and their clinicians. We queried patient-participants' electronic health records for BRCA1/2-associated cancer diagnoses and risk management that occurred within 12 months after results disclosure, and calculated the percentage of patient-participants of eligible age who had begun risk management.ResultsThirty-seven MyCode patient-participants were unaware of their pathogenic/likely pathogenic BRCA1/2 variant, had not had a BRCA1/2-associated cancer, and had 12 months of follow-up. Of the 33 who were of an age to begin BRCA1/2-associated risk management, 26 (79%) had performed at least one such procedure. Three were diagnosed with an early-stage, BRCA1/2-associated cancer-including a stage 1C fallopian tube cancer-via these procedures.ConclusionScreening for pathogenic BRCA1/2 variants among unselected individuals can lead to occult cancer detection shortly after disclosure. Comprehensive outcomes data generated within our learning healthcare system will aid in determining whether population-wide BRCA1/2 genomic screening programs offer clinical utility.


Assuntos
Bancos de Espécimes Biológicos , Detecção Precoce de Câncer/métodos , Genes BRCA1 , Genes BRCA2 , Mutação , Neoplasias/diagnóstico , Neoplasias/genética , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos de Associação Genética , Predisposição Genética para Doença , Mutação em Linhagem Germinativa , Síndrome Hereditária de Câncer de Mama e Ovário/diagnóstico , Síndrome Hereditária de Câncer de Mama e Ovário/genética , Humanos , Pessoa de Meia-Idade , Linhagem , Sequenciamento Completo do Genoma
17.
MMWR Morb Mortal Wkly Rep ; 67(23): 659-662, 2018 Jun 15.
Artigo em Inglês | MEDLINE | ID: mdl-29902164

RESUMO

On June 26, 2017, a hospital in southern Utah notified the Utah Department of Health of Shiga toxin-producing Escherichia coli (STEC) O157:H7 infections in two children from a small community on the Arizona-Utah border. Both children developed hemolytic uremic syndrome, characterized by hemolytic anemia, acute kidney failure, and thrombocytopenia and died within a few days of illness onset. Over the next few days, several more STEC-associated illnesses were reported in residents of the community. A joint investigation by local and state health agencies from Arizona and Utah and CDC was initiated to identify the outbreak source and prevent additional cases; a total of 12 cases were identified, including the two children who died. Investigators initially explored multiple potential sources of illness; epidemiologic and environmental information revealed cow manure contact as the likely initial cause of the outbreak, which was followed by subsequent person-to-person transmission. One of the outbreak strains was isolated from bull and horse manure collected from a yard near a community household with two ill children. Local health agencies made recommendations to the public related to both animal contact and hand hygiene to reduce the risk for STEC transmission. Animal or animal manure contact should be considered a potential source of STEC O157:H7 during outbreaks in communities where ruminants are kept near the home.


Assuntos
Surtos de Doenças , Exposição Ambiental/efeitos adversos , Infecções por Escherichia coli/epidemiologia , Escherichia coli O157/isolamento & purificação , Esterco/microbiologia , População Rural , Escherichia coli Shiga Toxigênica/isolamento & purificação , Adolescente , Adulto , Animais , Arizona/epidemiologia , Bovinos , Criança , Pré-Escolar , Feminino , Cavalos , Humanos , Lactente , Masculino , População Rural/estatística & dados numéricos , Utah/epidemiologia , Adulto Jovem
18.
J Genet Couns ; 27(2): 470-480, 2018 04.
Artigo em Inglês | MEDLINE | ID: mdl-29130143

RESUMO

Patients with newly-described or rare genetic findings are turning to social media to find and connect with others. Blogs, Facebook groups, and Twitter have all been reported as tools for patients to connect with one another. However, the preferences for social media use and privacy among patients, their families, and these communities have not been well characterized. To explore preferences about privacy and membership guidelines, an online survey was administered to two web-based patient registries, Simons Variation in Individuals Project ( www.simonsvipconnect.org ) and GenomeConnect ( www.genomeconnect.org ). Over a three-month period, invitations were sent to 2524 individuals and 103 responses (4%) were received and analyzed. Responses indicate that Facebook is the most popular resource accessed within this sample population (99%). Participants used social media to look for information about their diagnosis or test results (83%), read posts from rare disease groups or organizations (73%), participate in conversations about their diagnosis (67%), and connect with others to find support (58%). Focusing on privacy issues in social media, respondents indicate that membership and access impact the level of comfort in sharing personal or medical information. Nearly 60% of respondents felt uncomfortable sharing photos or medical information within a public Facebook group, whereas only 12% of respondents felt uncomfortable sharing in private group targeted to families alone. Using this preliminary data concerning social media use and privacy, we developed points for genetic counselors to incorporate when discussing available support resources for patients with a new, or rare, genetic diagnosis or genetic test result. Genetic counselors are trained to provide anticipatory guidance to families adapting to new genetic information, and are well-equipped to help patients consider their preferences about using social media as a source of information and support.


Assuntos
Aconselhamento Genético , Mídias Sociais , Apoio Social , Feminino , Humanos , Masculino , Inquéritos e Questionários
19.
Emerg Infect Dis ; 23(9): 1441-1445, 2017 09.
Artigo em Inglês | MEDLINE | ID: mdl-28820135

RESUMO

The ability to generate high-quality sequence data in a public health laboratory enables the identification of pathogenic strains, the determination of relatedness among outbreak strains, and the analysis of genetic information regarding virulence and antimicrobial-resistance genes. However, the analysis of whole-genome sequence data depends on bioinformatic analysis tools and processes. Many public health laboratories do not have the bioinformatic capabilities to analyze the data generated from sequencing and therefore are unable to take full advantage of the power of whole-genome sequencing. The goal of this perspective is to provide a guide for laboratories to understand the bioinformatic analyses that are needed to interpret whole-genome sequence data and how these in silico analyses can be implemented in a public health laboratory setting easily, affordably, and, in some cases, without the need for intensive computing resources and infrastructure.


Assuntos
Bactérias/genética , Biologia Computacional/métodos , Genoma Bacteriano , Sequenciamento de Nucleotídeos em Larga Escala/métodos , Saúde Pública/instrumentação , Sequenciamento Completo do Genoma , Bactérias/classificação , Bactérias/isolamento & purificação , Bactérias/patogenicidade , Infecções Bacterianas/diagnóstico , Infecções Bacterianas/epidemiologia , Computadores , Sequenciamento de Nucleotídeos em Larga Escala/instrumentação , Humanos , Laboratórios , Filogenia , Saúde Pública/métodos , Vigilância em Saúde Pública , Software , Estados Unidos/epidemiologia , Virulência
20.
Genet Med ; 19(6): 620-624, 2017 06.
Artigo em Inglês | MEDLINE | ID: mdl-27787499

RESUMO

Genet Med advance online publication 27 October 2016Genetics in Medicine (2016); doi:10.1038/gim.2016.165.

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