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1.
Pilot Feasibility Stud ; 9(1): 47, 2023 Mar 22.
Artigo em Inglês | MEDLINE | ID: mdl-36949526

RESUMO

BACKGROUND: The COVID-19 pandemic forced healthcare institutions and many clinical research programs to adopt telehealth modalities in order to mitigate viral spread. With the expanded use of telehealth, there is the potential to increase access to genomic medicine to medically underserved populations, yet little is known about how best to communicate genomic results via telehealth while also ensuring equitable access. NYCKidSeq, a multi-institutional clinical genomics research program in New York City, launched the TeleKidSeq pilot study to assess alternative forms of genomic communication and telehealth service delivery models with families from medically underserved populations. METHODS: We aim to enroll 496 participants between 0 and 21 years old to receive clinical genome sequencing. These individuals have a neurologic, cardiovascular, and/or immunologic disease. Participants will be English- or Spanish-speaking and predominantly from underrepresented groups who receive care in the New York metropolitan area. Prior to enrollment, participants will be randomized to either genetic counseling via videoconferencing with screen-sharing or genetic counseling via videoconferencing without screen-sharing. Using surveys administered at baseline, results disclosure, and 6-months post-results disclosure, we will evaluate the impact of the use of screen-sharing on participant understanding, satisfaction, and uptake of medical recommendations, as well as the psychological and socioeconomic implications of obtaining genome sequencing. Clinical utility, cost, and diagnostic yield of genome sequencing will also be assessed. DISCUSSION: The TeleKidSeq pilot study will contribute to innovations in communicating genomic test results to diverse populations through telehealth technology. In conjunction with NYCKidSeq, this work will inform best practices for the implementation of genomic medicine in diverse, English- and Spanish-speaking populations.

2.
Biomedicines ; 11(2)2023 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-36831098

RESUMO

Membrane type 1 matrix metalloproteinase (MT1-MMP) has been shown to be crucial for tumor angiogenesis, invasion, and metastasis, and thus MT1-MMP is a high priority target for potential cancer therapies. To properly evaluate MT1-MMP inhibitors, a screening protocol is desired by which enzyme activity can be quantified in a tumor microenvironment-like model system. In the present study, we applied a fluorogenic, collagen model triple-helical substrate to quantify MT1-MMP activity for tumor spheroids embedded in a collagen hydrogel. The substrate was designed to be MT1-MMP selective and to possess fluorescent properties compatible with cell-based assays. The proteolysis of the substrate correlated to glioma spheroid invasion. In turn, the application of either small molecule or protein-based MMP inhibitors reduced proteolytic activity and glioma spheroid invasion. The presence of MT1-MMP in glioma spheroids was confirmed by western blotting. Thus, spheroid invasion was dependent on MT1-MMP activity, and inhibitors of MT1-MMP and invasion could be conveniently screened in a high-throughput format. The combination of the fluorogenic, triple-helical substrate, the three-dimensional tumor spheroids embedded in collagen, and Hit-Pick software resulted in an easily adaptable in vivo-like tumor microenvironment for rapidly processing inhibitor potential for anti-cancer use.

3.
JAMA ; 329(6): 482-489, 2023 02 14.
Artigo em Inglês | MEDLINE | ID: mdl-36701144

RESUMO

Importance: Influenza virus infections declined globally during the COVID-19 pandemic. Loss of natural immunity from lower rates of influenza infection and documented antigenic changes in circulating viruses may have resulted in increased susceptibility to influenza virus infection during the 2021-2022 influenza season. Objective: To compare the risk of influenza virus infection among household contacts of patients with influenza during the 2021-2022 influenza season with risk of influenza virus infection among household contacts during influenza seasons before the COVID-19 pandemic in the US. Design, Setting, and Participants: This prospective study of influenza transmission enrolled households in 2 states before the COVID-19 pandemic (2017-2020) and in 4 US states during the 2021-2022 influenza season. Primary cases were individuals with the earliest laboratory-confirmed influenza A(H3N2) virus infection in a household. Household contacts were people living with the primary cases who self-collected nasal swabs daily for influenza molecular testing and completed symptom diaries daily for 5 to 10 days after enrollment. Exposures: Household contacts living with a primary case. Main Outcomes and Measures: Relative risk of laboratory-confirmed influenza A(H3N2) virus infection in household contacts during the 2021-2022 season compared with prepandemic seasons. Risk estimates were adjusted for age, vaccination status, frequency of interaction with the primary case, and household density. Subgroup analyses by age, vaccination status, and frequency of interaction with the primary case were also conducted. Results: During the prepandemic seasons, 152 primary cases (median age, 13 years; 3.9% Black; 52.0% female) and 353 household contacts (median age, 33 years; 2.8% Black; 54.1% female) were included and during the 2021-2022 influenza season, 84 primary cases (median age, 10 years; 13.1% Black; 52.4% female) and 186 household contacts (median age, 28.5 years; 14.0% Black; 63.4% female) were included in the analysis. During the prepandemic influenza seasons, 20.1% (71/353) of household contacts were infected with influenza A(H3N2) viruses compared with 50.0% (93/186) of household contacts in 2021-2022. The adjusted relative risk of A(H3N2) virus infection in 2021-2022 was 2.31 (95% CI, 1.86-2.86) compared with prepandemic seasons. Conclusions and Relevance: Among cohorts in 5 US states, there was a significantly increased risk of household transmission of influenza A(H3N2) in 2021-2022 compared with prepandemic seasons. Additional research is needed to understand reasons for this association.


Assuntos
COVID-19 , Vírus da Influenza A Subtipo H3N2 , Vacinas contra Influenza , Influenza Humana , Adolescente , Adulto , Criança , Feminino , Humanos , Masculino , COVID-19/epidemiologia , Vírus da Influenza A Subtipo H3N2/isolamento & purificação , Vacinas contra Influenza/uso terapêutico , Influenza Humana/diagnóstico , Influenza Humana/epidemiologia , Influenza Humana/prevenção & controle , Influenza Humana/transmissão , Pandemias/prevenção & controle , Pandemias/estatística & dados numéricos , Estudos Prospectivos , Estações do Ano , Características da Família , Estados Unidos/epidemiologia , Busca de Comunicante/estatística & dados numéricos , Autoteste
4.
Nurs Adm Q ; 47(1): 64-71, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36446077

RESUMO

Nurse retention strategies are top of mind for nurse leaders as they face an unprecedented staffing crisis. A strategic approach that includes innovative models to enhance nurse satisfaction and nurse retention may include role enrichment strategies such as blended roles, alternative work arrangements, and shared staffing. Effective implementation requires authentic, transformational leadership, as well as structures and processes for replication, sustainability, and improved outcomes. This case study illustrates the potential of this strategy to positively influence key factors contributing to nurse retention, especially for millennial nurses. Nurse leaders in one critical care unit shared their experience with cross-training for blended roles, skill expansion for professional development for unit staff as well as float team members, leadership development opportunities, and shared staffing. Creating a staffing strategy that includes the leadership and infrastructure to support blended or dual roles is one promising element in a nurse leader tool kit for millennial nurse retention.


Assuntos
Enfermeiros Administradores , Enfermeiras e Enfermeiros , Recursos Humanos de Enfermagem Hospitalar , Humanos , Liderança , Recursos Humanos , Satisfação no Emprego
5.
Res Sq ; 2023 Dec 12.
Artigo em Inglês | MEDLINE | ID: mdl-38168216

RESUMO

In the aftermath of the World Trade Center (WTC) attack, rescue and recovery workers faced hazardous conditions and toxic agents. Prior research linked these exposures to adverse health effects, but mainly examined individual factors, overlooking complex mixture effects. This study applies an exposomic approach encompassing the totality of responders' experience, defined as the WTC exposome. We analyzed data from 34,096 members of the WTC Health Program General Responder, including mental and physical health, occupational history, traumatic and environmental exposures using generalized weighted quantile sum regression. We find a significant association between the exposure mixture index all investigated health outcomes. Factors identified as risk factors include working in an enclosed heavily contaminated area, construction occupation, and exposure to blood and body fluids. Conversely, full-time employment emerged as a protective factor. This exposomics study emphasizes the importance of considering combined exposures. In an era marked by more frequent and severe natural disasters due to the evolving climate crisis, the exposomic framework holds promise as a valuable tool for disaster preparedness.

6.
Artigo em Inglês | MEDLINE | ID: mdl-36429638

RESUMO

Cruciferous vegetables such as cauliflower and radish contain isothiocyanates exhibiting chemoprotective effects in vitro and in vivo. This research aimed to assess the impact of cauliflower (CIE) and radish (RIE) isothiocyanate extracts on the metabolic activity, intracellular reactive oxygen species (ROS), and LDH production of selected human colorectal adenocarcinoma cells (HCT116 and HT-29 for early and late colon cancer development, respectively). Non-cancerous colon cells (CCD-33Co) were used as a cytotoxicity control. The CIE samples displayed the highest allyl isothiocyanate (AITC: 12.55 µg/g) contents, whereas RIE was the most abundant in benzyl isothiocyanate (BITC: 15.35 µg/g). Both extracts effectively inhibited HCT116 and HT-29 metabolic activity, but the CIE impact was higher than that of RIE on HCT116 (IC50: 0.56 mg/mL). Assays using the half-inhibitory concentrations (IC50) of all treatments, including AITC and BITC, displayed increased (p < 0.05) LDH (absorbance: 0.25-0.40 nm) and ROS release (1190-1697 relative fluorescence units) in both cell lines. BITC showed the highest in silico binding affinity with all the tested colorectal cancer molecular markers (NF-kB, ß-catenin, and NRF2-NFE2). The theoretical evaluation of AITC and BITC bioavailability showed high values for both compounds. The results indicate that CIE and RIE extracts display chemopreventive effects in vitro, but additional experiments are needed to validate their effects.


Assuntos
Brassica , Neoplasias Colorretais , Raphanus , Humanos , Espécies Reativas de Oxigênio , Botrytis , Isotiocianatos/farmacologia , Neoplasias Colorretais/tratamento farmacológico
7.
Nutrients ; 14(16)2022 Aug 16.
Artigo em Inglês | MEDLINE | ID: mdl-36014864

RESUMO

During the COVID-19 pandemic, significantly fewer of New York City's (NYC's) 1.1 million public school children participated in emergency grab-and-go meals-heightening the risk of inadequate nutrition security for many of NYC's most vulnerable residents. This study sought to examine student families' facilitators and barriers to participation in the grab-and-go meal service and their experiences with pandemic-electronic benefit transfer (P-EBT) funds, a cash benefit distributed when schools were closed. We recruited 126 parents of children in NYC public schools who had participated in the grab-and-go service. Using opened-ended questions, we interviewed 101 parents in 25 1-h online focus groups. We identified four main themes which broadly impacted school meal participation: communication, logistics, meal appeal, and personal circumstances. Key facilitating subthemes included clear communication, ease of accessing sites, and high variety. Key sub-themes negatively impacting participation included limited communication and low meal variety. Accurate, timely communication; easily accessible distribution locations; and convenient distribution times could have increased participation and satisfaction. For P-EBT, parents welcomed the funds and used them readily, but some experienced difficulties obtaining payments. The simultaneous inclusion of community-based research in the evaluation of emergency feeding programs could improve future outcomes for school meal participation and electronic benefits.


Assuntos
COVID-19 , Serviços de Alimentação , COVID-19/epidemiologia , Criança , Eletrônica , Humanos , Refeições , Pandemias
8.
BMC Public Health ; 22(1): 843, 2022 04 27.
Artigo em Inglês | MEDLINE | ID: mdl-35477376

RESUMO

BACKGROUND: Restaurants, particularly independently-owned ones that serve immigrant communities, are important community institutions in the promotion of dietary health. Yet, these restaurants remain under-researched, preventing meaningful collaborations with the public health sector for healthier community food environments. This research aimed to examine levels of acceptability of healthy eating promotion strategies (HEPS) in independently-owned Latin American restaurants (LARs) and identify resource needs for implementing HEPS in LARs. METHODS: We completed semi-structured, online discussions with LAR owners and staff (n = 20), predominantly from New York City (NYC), to examine current engagement, acceptability, potential barriers, and resource needs for the implementation of HEPS. Verbatim transcripts were analyzed independently by two coders using Dedoose, applying sentiment weighting to denote levels of acceptability for identified HEPS (1 = low, 2 = medium/neutral, 3 = high). Content analysis was used to examine factors associated with HEPS levels of acceptability and resource needs, including the influence of the Coronavirus pandemic (COVID-19). RESULTS: The most acceptable HEPS was menu highlights of healthier items (mean rating = 2.8), followed by promotion of healthier items (mean rating = 2.7), increasing healthy offerings (mean rating = 2.6), nutrition information on the menu (mean rating = 2.3), and reduced portions (mean rating = 1.7). Acceptability was associated with factors related to perceived demand, revenue, and logistical constraints. COVID-19 had a mixed influence on HEPS engagement and acceptability. Identified resource needs to engage in HEPS included nutrition knowledge, additional expertise (e.g., design, social media, culinary skills), and assistance with food suppliers and other restaurant operational logistics. Respondents also identified potential policy incentives. CONCLUSIONS: LARs can positively influence eating behaviors but doing so requires balancing public health goals and business profitability. LARs also faced various constraints that require different levels of assistance and resources, underscoring the need for innovative engagement approaches, including incentives, to promote these changes.


Assuntos
COVID-19 , Restaurantes , COVID-19/epidemiologia , COVID-19/prevenção & controle , Dieta Saudável , Humanos , América Latina , Inquéritos e Questionários
11.
Crit Care Nurse ; 41(6): 12-21, 2021 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-34113971

RESUMO

INTRODUCTION: Venovenous extracorporeal membrane oxygenation has been recommended as an effective rescue therapy for select critically ill patients with COVID-19. This case report describes a first experience caring for a patient with COVID-19 who received venovenous extracorporeal membrane oxygenation and expands the literature by discussing relevant nursing management and operational considerations. CLINICAL FINDINGS: A 46-year-old man presented to a hospital emergency department with pleuritic chest pain, dyspnea, anorexia, and chills. The patient was intubated for pneumonia-associated acute respiratory distress syndrome. DIAGNOSIS: A nasopharyngeal swab specimen was positive for SARS-CoV-2, and chest radiography confirmed a diagnosis of COVID-19 with acute respiratory distress syndrome. INTERVENTIONS: After no improvement with mechanical ventilation and prone positioning, the patient began receiving venovenous extracorporeal membrane oxygenation and was transferred to an extracorporeal membrane oxygenation center. Frontline critical care nurses played a vital role in coordinating patient care activities, monitoring changes in the patient's condition, and detecting complications early. OUTCOMES: The patient was decannulated on day 15 and extubated on day 17. The patient was successfully discharged home on hospital day 24. CONCLUSION: Caring for a patient with COVID-19 receiving venovenous extracorporeal membrane oxygenation posed unprecedented challenges that required deviations from standards of care to optimize infection control measures and staff safety while providing quality care. This case report may inform, prepare, and guide other critical care nurses who will be caring for similar patients during this pandemic.


Assuntos
COVID-19 , Oxigenação por Membrana Extracorpórea , Síndrome do Desconforto Respiratório , Humanos , Masculino , Pessoa de Meia-Idade , Pandemias , SARS-CoV-2
12.
Viruses ; 13(4)2021 04 15.
Artigo em Inglês | MEDLINE | ID: mdl-33920978

RESUMO

The oral cavity is often the first site where viruses interact with the human body. The oral epithelium is a major site of viral entry, replication and spread to other cell types, where chronic infection can be established. In addition, saliva has been shown as a primary route of person-to-person transmission for many viruses. From a clinical perspective, viral infection can lead to several oral manifestations, ranging from common intraoral lesions to tumors. Despite the clinical and biological relevance of initial oral infection, little is known about the mechanism of regulation of the viral life cycle in the oral cavity. Several viruses utilize host epigenetic machinery to promote their own life cycle. Importantly, viral hijacking of host chromatin-modifying enzymes can also lead to the dysregulation of host factors and in the case of oncogenic viruses may ultimately play a role in promoting tumorigenesis. Given the known roles of epigenetic regulation of viral infection, epigenetic-targeted antiviral therapy has been recently explored as a therapeutic option for chronic viral infection. In this review, we highlight three herpesviruses with known roles in oral infection, including herpes simplex virus type 1, Epstein-Barr virus and Kaposi's sarcoma-associated herpesvirus. We focus on the respective oral clinical manifestations of these viruses and their epigenetic regulation, with a specific emphasis on the viral life cycle in the oral epithelium.


Assuntos
Epigênese Genética , Regulação Viral da Expressão Gênica , Herpesviridae/genética , Doenças da Boca/virologia , Saliva/virologia , Replicação Viral/genética , Linhagem Celular , Herpesviridae/classificação , Herpesviridae/patogenicidade , Herpesvirus Humano 1/genética , Herpesvirus Humano 1/patogenicidade , Herpesvirus Humano 4/genética , Herpesvirus Humano 4/patogenicidade , Herpesvirus Humano 8/genética , Herpesvirus Humano 8/patogenicidade , Humanos , Boca/patologia , Boca/virologia , Internalização do Vírus
13.
PeerJ ; 9: e10574, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33552714

RESUMO

A new fossil species of pyrgodesmid millipede (Polydesmida: Pyrgodesmidae) placed in the genus Myrmecodesmus Silvestri, 1910 is described. The type materials are two amber inclusions, male and female specimens that come from Miocene strata in Chiapas, Mexico. Myrmecodesmus antiquus sp. nov. has collum with 10 dorsal tubercles; without porosteles or ozopores; legs of the rings 2-9 with a short projection on the prefemur in both the female and male. Myrmecodesmus antiquus sp. nov is the first fossil record of the genus Myrmecodesmus. This is a New World taxon that belongs to the pantropical family Pyrgodesmidae. Thus, Myrmecodesmus antiquus sp. nov expands the range of the genus to the Miocene tropics in Middle America.

14.
Sci Rep ; 11(1): 708, 2021 01 12.
Artigo em Inglês | MEDLINE | ID: mdl-33436911

RESUMO

The fetus develops in a privileged environment, as the placenta serves as both a gateway for nutrients and a barrier for pathogen transfer to the fetus. Regardless, recent evidence suggests the presence of bacterial DNA in both placenta and fetus, and we have reported that DNA and protein from small numbers of bacteria gain access to the fetus from the maternal bloodstream. Other routes of environmental bacterial transfer from the mother to fetus remain unknown, as well as the physiological relevance of their presence. In these experiments, we examine multiple routes by which bacterial cellular components can enter the fetus and the fetal response to influx of bacterial DNA and protein. We inoculated maternal sheep with genetically-labeled S. aureus (Staphylococcus aureus) using three routes: intravenously, orally, and intra-vaginally. The inoculum did not produce sepsis or fever in the ewes, therefore mimicking incidental exposure to bacteria during pregnancy. 3-5 days post inoculation, we assessed the presence of bacterial components in the fetal tissues and analyzed fetal brain tissue to identify any alterations in gene expression. Our results demonstrate that components of bacteria that were introduced into the maternal mouth were detected in the fetal brain and that they stimulated changes in gene expression. We conclude that an oral route of transmission is relevant for transfer of bacterial cellular components to the fetus.


Assuntos
Encéfalo/microbiologia , DNA Bacteriano/análise , Feto/microbiologia , Troca Materno-Fetal , Placenta/microbiologia , Infecções Estafilocócicas/microbiologia , Staphylococcus aureus/isolamento & purificação , Administração Oral , Animais , Encéfalo/metabolismo , DNA Bacteriano/genética , Feminino , Feto/metabolismo , Regulação Bacteriana da Expressão Gênica , Transmissão Vertical de Doenças Infecciosas/estatística & dados numéricos , Placenta/metabolismo , Gravidez , RNA-Seq , Ovinos , Infecções Estafilocócicas/genética , Infecções Estafilocócicas/metabolismo
15.
Health Phys ; 120(2): 123-130, 2021 02 01.
Artigo em Inglês | MEDLINE | ID: mdl-33369969

RESUMO

ABSTRACT: Healthcare-associated infections are a major public health concern for both patients and medical personnel. This has taken on greater urgency during the current COVID-19 pandemic. Radiation Personal Protective Equipment (RPPE) may contribute to risks of microbial contamination. This possibility was tested in 61 personal or shared-use lead aprons and thyroid collars at Columbia Presbyterian Irving Medical Center. Fifty percent tested positive for either bacterial or fungal contamination, mostly around the neckline of lead vests and thyroid collars. Repeated testing of garments some weeks to months later confirmed continued presence of microbial contamination. The possibility that hospital-approved disinfection agents could degrade the radio-protective features of these garments was also examined. Samples of identical construction to garments in regular use were subjected to either daily or weekly wipes with hypochlorite or alcohol-based hospital-approved cleaning agents for 6 mo. A third group of samples was maintained in contact with the cleaning agents for 6 mo. All samples were fluoroscoped four times during the study. None demonstrated any degradation in radioprotection. All samples were photographed monthly. Physical degradation of the outer plastic covering by concentrated hypochlorite and limited mechanical damage around stitched seams of the samples cleaned daily with alcohol was noted. Based on the high prevalence of microbial contamination, regular cleaning and disinfection protocols should be implemented. Regular cleaning with medical-facility-approved cleaning and disinfecting agents is likely to be effective at reducing the microbial load and unlikely to result in significant reduction in radioprotective properties of these garments.


Assuntos
Infecção Hospitalar/prevenção & controle , Desinfecção/métodos , Roupa de Proteção/microbiologia , Proteção Radiológica , Humanos , Equipamento de Proteção Individual , Risco
17.
Appl Environ Microbiol ; 85(19)2019 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-31350318

RESUMO

Differentiating between contamination and the genuine presence of 16S rRNA genes in gestational tissue samples is the gold standard for supporting the in utero colonization hypothesis. During gestation, the fetus undergoes significant physiological changes that may be directly affected by maternal colonization of key bacterial genera. In this study, lab benches, necropsy tables, and air ducts were swabbed at the same time as clinical sampling. The relative and absolute abundance of bacteria present in sheep samples was determined by culture-independent and culture-dependent means. Of 14 healthy pregnant ewes, there was no evidence of any bacteria in the fetal liver, spleen, or brain cortex using culture-independent techniques despite evidence of the presence of bacteria in various locations of the necropsy room used for 11 of these 14 sheep. Of the 336 bacterial genera found in the room swabs, only 12 (5%) were also found in the saliva and vaginal swabs among the three ewes for which bacteria were detected. These 12 taxa represent 1.32% of the relative abundance and approximately 393 16S rRNA copies/swab in these three ewes. Using careful necropsy protocols, bacterial contamination of sheep tissues was avoided. Contamination of saliva and vaginal samples was limited to less than 2% of the bacterial population.IMPORTANCE Recent evidence for a gestational microbiome suggests that active transfer between mother and fetus in utero is possible, and, therefore, actions must be taken to clarify the presence versus absence of these organisms in their respected sources. The value of this study is the differentiation between bacterial DNA identified in the necropsy rooms of animals and bacterial DNA whose origin is purely clinical in nature. We do not know the extent to which microorganisms traverse maternal tissues and infiltrate fetal circulation, so measures taken to control for contamination during sample processing are vital for addressing these concerns.


Assuntos
Autopsia/instrumentação , Bactérias/isolamento & purificação , Contaminação de Equipamentos , Microbiota , Animais , Bactérias/classificação , Contagem de Colônia Microbiana , DNA Bacteriano/genética , Feminino , Feto/microbiologia , Gravidez , Prenhez , RNA Ribossômico 16S/genética , Saliva/microbiologia , Ovinos , Vagina/microbiologia
18.
PLoS One ; 14(6): e0217211, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31170184

RESUMO

Fetal development is thought to proceed in a sterile environment. Recent reports of the presence of bacterial DNA in human placenta, the transfer of live bacteria from mother to fetus after hypoxia in the pregnant sheep, and the presence of bacteria in the meconium of newborn infants have suggested that the fetus might be exposed to bacteria in utero. The present experiments were designed to test the hypothesis that small numbers of bacteria introduced into the maternal bloodstream (too few to induce fever or changes in maternal food consumption), can be found in the fetus days later. We injected 100 colony forming units of green-, red- and far red- fluorescent protein (GFP, RFP, FRFP) expressing S. aureus into late-gestation pregnant sheep intravenously. Five to 7 days later, the animals were euthanized and tissues collected for analysis of GFP. The inoculations did not cause any fever or other measurable behavioral response in the ewes, but did result in the appearance of GFP DNA, and protein in various tissues within the fetuses. Immunohistochemical analysis reveals GFP protein-containing bacteria that appear to be mostly contained within other cells. We were unable to recover any live GFP-expressing bacteria from the fetal tissues. We conclude that S. aureus, and perhaps other bacteria, gain access to the fetus, although it is not clear from these experiments that they survive in the fetus. It is possible that these low inocula and their progeny were effectively cleared by the fetal immune system.


Assuntos
Feto/microbiologia , Transmissão Vertical de Doenças Infecciosas , Mães , Ovinos , Animais , Feminino , Viabilidade Microbiana , Gravidez , Staphylococcus aureus/fisiologia
19.
J Dance Med Sci ; 23(2): 51-57, 2019 Jun 15.
Artigo em Inglês | MEDLINE | ID: mdl-31122313

RESUMO

The artistic nature of dance in combi- nation with the technical perfection required during performance makes it a highly demanding discipline. Starting at a young age, serious ballet students undergo long hours of training. Professional ballet dancers continue to train intensively in order to maintain their technical proficiency. Hip pathology in ballet dancers has been frequently reported in the literature, including femoroacetabular impingement syndrome, hip instability, muscle injuries, and early osteoarthritis. Screening programs to identify these hip joint pathologies (at- risk hips) in ballet dancers when they are still asymptomatic or their injury does not affect their performance are useful to aid in the development of prevention and treatment strategies. The purpose of this cross-sectional study was to identify hips at risk in the members of a professional ballet company using ultrasound-assisted physical examination. A high prevalence of cam lesions was detected in this cohort. Dancers with cam lesions were more likely to have an acetabular labral tear. In addition, there was a positive correlation between cam lesions and positive dial test, which is an indication of hip microinstability. Work of this kind can help to improve understanding of hip pathology in dancers and facilitate activity modification programs to prevent progression of their hip injuries.


Assuntos
Dança/lesões , Lesões do Quadril/diagnóstico por imagem , Lesões do Quadril/fisiopatologia , Ultrassonografia , Adolescente , Adulto , Estudos Transversais , Feminino , Humanos , Masculino , Exame Físico , Adulto Jovem
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