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BACKGROUND: Glioblastoma (GBM) brain tumors lacking IDH1 mutations (IDHwt) have the worst prognosis of all brain neoplasms. Patients receive surgery and chemoradiotherapy but tumors almost always fatally recur. RESULTS: Using RNA sequencing data from 107 pairs of pre- and post-standard treatment locally recurrent IDHwt GBM tumors, we identify two responder subtypes based on longitudinal changes in gene expression. In two thirds of patients, a specific subset of genes is upregulated from primary to recurrence (Up responders), and in one third, the same genes are downregulated (Down responders), specifically in neoplastic cells. Characterization of the responder subtypes indicates subtype-specific adaptive treatment resistance mechanisms that are associated with distinct changes in the tumor microenvironment. In Up responders, recurrent tumors are enriched in quiescent proneural GBM stem cells and differentiated neoplastic cells, with increased interaction with the surrounding normal brain and neurotransmitter signaling, whereas Down responders commonly undergo mesenchymal transition. ChIP-sequencing data from longitudinal GBM tumors suggests that the observed transcriptional reprogramming could be driven by Polycomb-based chromatin remodeling rather than DNA methylation. CONCLUSIONS: We show that the responder subtype is cancer-cell intrinsic, recapitulated in in vitro GBM cell models, and influenced by the presence of the tumor microenvironment. Stratifying GBM tumors by responder subtype may lead to more effective treatment.
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Neoplasias Encefálicas , Glioblastoma , Humanos , Glioblastoma/tratamiento farmacológico , Glioblastoma/genética , Glioblastoma/patología , Recurrencia Local de Neoplasia/genética , Neoplasias Encefálicas/genética , Neoplasias Encefálicas/patología , Encéfalo/patología , Metilación de ADN , Regulación Neoplásica de la Expresión Génica , Microambiente TumoralRESUMEN
OBJECTIVES: On September 23, 2019, the North Carolina Division of Public Health identified a legionellosis increase in western North Carolina; most patients had recently attended the North Carolina Mountain State Fair. We conducted a source investigation. METHODS: Cases were fair attendees with laboratory-confirmed legionellosis and symptom onset within 2 to 14 days (Legionnaires' disease) or ≤3 days (Pontiac fever). We conducted a case-control study matching cases to non-ill fair attendees as control participants and an environmental investigation, and we performed laboratory testing (Legionella bacteria culture and polymerase chain reaction) of 27 environmental samples from fairgrounds and hot tubs and 14 specimens from case patients. We used multivariable unconditional logistic regression models to calculate adjusted odds ratios for potential Legionella exposure sources and risk factors. RESULTS: Of 136 people identified with fair-associated legionellosis, 98 (72%) were hospitalized and 4 (3%) died. Case patients were more likely than control participants to report walking by hot tub displays (adjusted odds ratio = 10.0; 95% CI, 4.2-24.1). Complete hot tub water treatment records were not kept, precluding evaluation of water maintenance conducted on display hot tubs. Legionella pneumophila sequence types (STs) were consistent among 10 typed clinical specimens (ST224) but distinct from the only positive environmental sample from the fair (ST7 and ST8). CONCLUSIONS: Hot tub displays were identified as the most likely outbreak source, making this the largest hot tub-associated Legionnaires' disease outbreak worldwide. Following the investigation, the North Carolina Division of Public Health and the Centers for Disease Control and Prevention released guidance on mitigating risk of Legionella exposure from hot tub displays. Results highlight the importance of properly maintaining equipment that aerosolizes water, including hot tubs intended for display purposes only.
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Legionelosis , Enfermedad de los Legionarios , Humanos , Enfermedad de los Legionarios/epidemiología , Estudios de Casos y Controles , North Carolina/epidemiología , Legionelosis/epidemiología , Legionelosis/complicaciones , Brotes de Enfermedades , Microbiología del AguaRESUMEN
SUMMARY: In this issue of Blood Cancer Discovery, Nakanishi et al. uncover a critical role for the elevated activity of the translation initiation factor eIF5A in the malignant growth of MYC-driven lymphoma. eIF5A is posttranslationally modified by hypusination through MYC oncoprotein-mediated hyperactivation of the polyamine-hypusine circuit, which may represent a promising therapeutic target because an enzyme of this circuit that is required for hypusinating eIF5A proved to be essential for lymphoma development. See related article by Nakanishi et al., p. 294 (4).
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Linfoma , Neoplasias , Humanos , Poliaminas , Procesamiento Proteico-PostraduccionalRESUMEN
Multiple myeloma (MM) shows constitutive activation of canonical and noncanonical nuclear factor κB (NF-κB) signaling via genetic mutations or tumor microenvironment (TME) stimulations. A subset of MM cell lines showed dependency for cell growth and survival on the canonical NF-κB transcription factor RELA alone, suggesting a critical role for a RELA-mediated biological program in MM pathogenesis. Here, we determined the RELA-dependent transcriptional program in MM cell lines and found the expression of the cell surface molecules interleukin-27 receptor-α (IL-27Rα) and the adhesion molecule JAM2 to be responsive to RELA at the messenger RNA and protein levels. IL-27Rα and JAM2 were expressed on primary MM cells at higher levels than on healthy long-lived plasma cells (PCs) in the bone marrow. IL-27 activated STAT1, and to a lesser extent STAT3, in MM cell lines and in PCs generated from memory B cells in an IL-21-dependent in vitro PC differentiation assay. Concomitant activity of IL-21 and IL-27 enhanced differentiation into PCs and increased the cell-surface expression of the known STAT target gene CD38. In accordance, a subset of MM cell lines and primary MM cells cultured with IL-27 upregulated CD38 cell-surface expression, a finding with potential implications for enhancing the efficacy of CD38-directed monoclonal antibody therapies by increasing CD38 expression on tumor cells. The elevated expression of IL-27Rα and JAM2 on MM cells compared with that on healthy PCs may be exploited for the development of targeted therapeutic strategies that modulate the interaction of MM cells with the TME.
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Interleucina-27 , Mieloma Múltiple , Humanos , Interleucina-27/metabolismo , Mieloma Múltiple/genética , FN-kappa B/metabolismo , Receptores de Citocinas/metabolismo , Microambiente Tumoral , Regulación hacia ArribaRESUMEN
The first three SARS-CoV-2 phylogenetic lineages classified as variants of concern (VOCs) in the United States (U.S.) from December 15, 2020 to February 28, 2021, Alpha (B.1.1.7), Beta (B.1.351), and Gamma (P.1) lineages, were initially detected internationally. This investigation examined available travel history of coronavirus disease 2019 (COVID-19) cases reported in the U.S. in whom laboratory testing showed one of these initial VOCs. Travel history, demographics, and health outcomes for a convenience sample of persons infected with a SARS-CoV-2 VOC from December 15, 2020 through February 28, 2021 were provided by 35 state and city health departments, and proportion reporting travel was calculated. Of 1,761 confirmed VOC cases analyzed, 1,368 had available data on travel history. Of those with data on travel history, 1,168 (85%) reported no travel preceding laboratory confirmation of SARS-CoV-2 and only 105 (8%) reported international travel during the 30 days preceding a positive SARS-CoV-2 test or symptom onset. International travel was reported by 92/1,304 (7%) of persons infected with the Alpha variant, 7/55 (22%) with Beta, and 5/9 (56%) with Gamma. Of the first three SARS-CoV-2 lineages designated as VOCs in the U.S., international travel was common only among the few Gamma cases. Most persons infected with Alpha and Beta variant reported no travel history, therefore, community transmission of these VOCs was likely common in the U.S. by March 2021. These findings underscore the importance of global surveillance using whole genome sequencing to detect and inform mitigation strategies for emerging SARS-CoV-2 VOCs.
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Delivering therapies to deeply seated brain tumours (BT) is a major clinical challenge. Magnetic drug targeting (MDT) could overcome this by rapidly transporting magnetised drugs directly into BT. We have developed a magnetic device for application in murine BT models using an array of neodymium magnets with a combined strength of 0.7T. In a closed fluidic system, the magnetic device trapped magnetic nanoparticles (MNP) up to distances of 0.8cm. In mice, the magnetic device guided intravenously administered MNP (<50nm) from the circulation into the brain where they localised within mouse BT. Furthermore, MDT of magnetised Temozolomide (TMZmag+) significantly reduced tumour growth and extended mouse survival to 48 days compared to the other treatment groups. Using the same principles, we built a proof of principle scalable magnetic device for human use with a strength of 1.1T. This magnetic device demonstrated trapping of MNP undergoing flow at distances up to 5cm. MDT using our magnetic device provides an opportunity for targeted delivery of magnetised drugs to human BT.
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Neoplasias Encefálicas , Sistemas de Liberación de Medicamentos , Humanos , Ratones , Animales , Neoplasias Encefálicas/tratamiento farmacológico , Neoplasias Encefálicas/patología , Magnetismo , Temozolomida , Fenómenos MagnéticosRESUMEN
BACKGROUND: Characterizing and quantifying cell types within glioblastoma (GBM) tumors at scale will facilitate a better understanding of the association between the cellular landscape and tumor phenotypes or clinical correlates. We aimed to develop a tool that deconvolutes immune and neoplastic cells within the GBM tumor microenvironment from bulk RNA sequencing data. METHODS: We developed an IDH wild-type (IDHwt) GBM-specific single immune cell reference consisting of B cells, T-cells, NK-cells, microglia, tumor associated macrophages, monocytes, mast and DC cells. We used this alongside an existing neoplastic single cell-type reference for astrocyte-like, oligodendrocyte- and neuronal progenitor-like and mesenchymal GBM cancer cells to create both marker and gene signature matrix-based deconvolution tools. We applied single-cell resolution imaging mass cytometry (IMC) to ten IDHwt GBM samples, five paired primary and recurrent tumors, to determine which deconvolution approach performed best. RESULTS: Marker-based deconvolution using GBM-tissue specific markers was most accurate for both immune cells and cancer cells, so we packaged this approach as GBMdeconvoluteR. We applied GBMdeconvoluteR to bulk GBM RNAseq data from The Cancer Genome Atlas and recapitulated recent findings from multi-omics single cell studies with regards associations between mesenchymal GBM cancer cells and both lymphoid and myeloid cells. Furthermore, we expanded upon this to show that these associations are stronger in patients with worse prognosis. CONCLUSIONS: GBMdeconvoluteR accurately quantifies immune and neoplastic cell proportions in IDHwt GBM bulk RNA sequencing data and is accessible here: https://gbmdeconvoluter.leeds.ac.uk.
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Neoplasias Encefálicas , Glioblastoma , Humanos , Glioblastoma/patología , Transcriptoma , Neoplasias Encefálicas/patología , Perfilación de la Expresión Génica/métodos , Microglía/metabolismo , Microambiente TumoralRESUMEN
Introduction Traditionally, physical therapy has adopted a tertiary approach to preventative care. However, recent trends in fall-related injuries and deaths among older individuals suggest a dire need for earlier intervention. The Home-based Older Persons Upstreaming Prevention Physical Therapy (HOP-UP-PT) program has been developed to improve the health and overall function of community-dwelling older adults at risk of functional decline. As demand continually rises for HOP-UP-PT services, online training modules have been developed to safely and efficiently provide HOP-UP-PT competency to physical therapists. The purpose of this study was to examine self-reported experiences and perceptions of physical therapists after completing an asynchronous training program to deliver HOP-UP-PT. Methods After securing Oakland University IRB approval, a qualitative study using a sample of convenience used two structured focus group interviews. Inclusion criteria required participants to be licensed physical therapists (PTs) in the state of Michigan providing at least 20 hours of direct patient care per week. Participants completed eight 30-minute training modules, each with a corresponding quiz. Upon completion, PTs attended one of two video conference focus groups. Data was analyzed using the constant comparative method to develop themes and concepts based on responses about the training modules and the overall HOP-UP-PT program. Results Twelve PTs with a median age of 31-40 years participated. Analysis of two focus group sessions identified three concepts (Novel Approach to Physical Therapy Care, Integration of a Preventative Approach into Clinical Practice, and Knowledge Translation) and ten themes (Addressing an Unmet Need, Establishing a Working Relationship with Community Centers, Applicability to Various Settings, Shifting the Mindset to a Prevention-focused Paradigm, Applicability to Physical Therapists that Care for Older Adults, Patient Engagement and Prevention, Value for the Professional, Importance of Availability of Options in a Learning Platform, Ongoing Availability of Program Resources and Tools, and Clinical Application Practice). Conclusion PTs identified the HOP-UP-PT program as a novel, clinically applicable, and adding value to the profession. Furthermore, its upstream focus aligns with the growing role of preventative care by PTs; however, as HOP-UP-PT is not a traditional approach, additional training and clinical support materials may facilitate adoption and clinical application. HOP-UP-PT uses a preventative approach to clinical practice, but efforts to translate knowledge to PT are an important consideration. Additionally, the study identified a need for refinement and modifications to the existing HOP-UP-PT training modules.
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Managing multiple comorbidities is common in older adults. Thus, when a medication class, such as sodium-glucose cotransporter-2 (SGLT2) inhibitors, can potentially treat multiple conditions and prevent progression of chronic kidney disease, multiple guidelines must be followed when using these agents. The current article discusses risks and benefits of SGLT2 inhibitors, especially in the context of new evidence, and presents a case example. [Journal of Gerontological Nursing, 48(10), 7-13.].
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Insuficiencia Renal Crónica , Inhibidores del Cotransportador de Sodio-Glucosa 2 , Anciano , Humanos , Hipoglucemiantes/farmacología , Hipoglucemiantes/uso terapéutico , Inhibidores del Cotransportador de Sodio-Glucosa 2/farmacología , Inhibidores del Cotransportador de Sodio-Glucosa 2/uso terapéuticoRESUMEN
The isolation of a compound from a natural source involves many organic and mostly toxic solvents for extraction and purification. Natural deep eutectic solvents have been shown to be efficient options for the extraction of natural products. They have the advantage of being composed of abundantly available common primary metabolites, being nontoxic and environmentally safe solvents. The aim of this study was to develop a natural deep eutectic solvent-based extraction method for galanthamine, an important therapeutic agent for the treatment of Alzheimer's disease. This alkaloid can be produced by synthesis or by extraction from Narcissus bulbs. To develop an efficient extraction method, a number of different natural deep eutectic solvents was first tested for their solubilization capacity of galanthamine bromide salt. Promising results were obtained for ionic liquids, as well as some amphoteric and acidic natural deep eutectic solvents. In a two-cycle extraction process, the best solvents were tested for the extraction of galanthamine from bulbs. The ionic liquids produced poor yields, and the best results were obtained with some acid and sugar mixtures, among which malic acid-sucrose-water (1â:â1â:â5) proved to be the best, showing similar yields to that of the exhaustive Soxhlet extraction with methanol. Furthermore, the natural deep eutectic solvent was more selective for galanthamine.
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Alcaloides , Líquidos Iónicos , Narcissus , Alcaloides/metabolismo , Disolventes Eutécticos Profundos , Galantamina/metabolismo , Líquidos Iónicos/metabolismo , Solventes/metabolismoRESUMEN
Natural killer (NK) cells protect against intracellular infection and cancer. These properties are exploited in oncolytic virus (OV) therapy, where antiviral responses enhance anti-tumour immunity. We have analysed the mechanism by which reovirus, an oncolytic dsRNA virus, modulates human NK cell activity. Reovirus activates NK cells in a type I interferon (IFN-I) dependent manner, inducing STAT1 and STAT4 signalling in both CD56dim and CD56bright NK cell subsets. Gene expression profiling revealed the dominance of IFN-I responses and identified induction of genes associated with NK cell cytotoxicity and cell cycle progression, with distinct responses in the CD56dim and CD56bright subsets. However, reovirus treatment inhibited IL-15 induced NK cell proliferation in an IFN-I dependent manner and was associated with reduced AKT signalling. In vivo, human CD56dim and CD56bright NK cells responded with similar kinetics to reovirus treatment, but CD56bright NK cells were transiently lost from the peripheral circulation at the peak of the IFN-I response, suggestive of their redistribution to secondary lymphoid tissue. Coupled with the direct, OV-mediated killing of tumour cells, the activation of both CD56dim and CD56bright NK cells by antiviral pathways induces a spectrum of activity that includes the NK cell-mediated killing of tumour cells and modulation of adaptive responses via the trafficking of IFN-γ expressing CD56bright NK cells to lymph nodes.
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Neoplasias , Virus Oncolíticos , Antivirales , Antígeno CD56 , Humanos , Células Asesinas Naturales , Neoplasias/metabolismo , Virus Oncolíticos/genéticaRESUMEN
During November 19-21, 2021, an indoor convention (event) in New York City (NYC), was attended by approximately 53,000 persons from 52 U.S. jurisdictions and 30 foreign countries. In-person registration for the event began on November 18, 2021. The venue was equipped with high efficiency particulate air (HEPA) filtration, and attendees were required to wear a mask indoors and have documented receipt of at least 1 dose of a COVID-19 vaccine.* On December 2, 2021, the Minnesota Department of Health reported the first case of community-acquired COVID-19 in the United States caused by the SARS-CoV-2 B.1.1.529 (Omicron) variant in a person who had attended the event (1). CDC collaborated with state and local health departments to assess event-associated COVID-19 cases and potential exposures among U.S.-based attendees using data from COVID-19 surveillance systems and an anonymous online attendee survey. Among 34,541 attendees with available contact information, surveillance data identified test results for 4,560, including 119 (2.6%) persons from 16 jurisdictions with positive SARS-CoV-2 test results. Most (4,041 [95.2%]), survey respondents reported always wearing a mask while indoors at the event. Compared with test-negative respondents, test-positive respondents were more likely to report attending bars, karaoke, or nightclubs, and eating or drinking indoors near others for at least 15 minutes. Among 4,560 attendees who received testing, evidence of widespread transmission during the event was not identified. Genomic sequencing of 20 specimens identified the SARS-CoV-2 B.1.617.2 (Delta) variant (AY.25 and AY.103 sublineages) in 15 (75%) cases, and the Omicron variant (BA.1 sublineage) in five (25%) cases. These findings reinforce the importance of implementing multiple, simultaneous prevention measures, such as ensuring up-to-date vaccination, mask use, physical distancing, and improved ventilation in limiting SARS-CoV-2 transmission, during large, indoor events..
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COVID-19/prevención & control , COVID-19/transmisión , Control de Enfermedades Transmisibles/métodos , Reuniones Masivas , Cooperación del Paciente , SARS-CoV-2 , Humanos , Ciudad de Nueva York/epidemiología , Vigilancia en Salud Pública , Estados Unidos/epidemiologíaRESUMEN
PURPOSE: Procalcitonin is a precursor hormone to calcitonin that increases in response to systemic inflammation, especially of bacterial origin, and is otherwise undetectable in healthy states. Studies have shown that following effective antimicrobial treatment, procalcitonin levels steadily decline. To be utilized however, procalcitonin levels determinations must be ordered at specific times during a patient's antimicrobial treatment. A retrospective medication-use evaluation of patients was performed at Medical Center Hospital and showed that in 70% of patients, initial procalcitonin levels were ordered inappropriately and procalcitonin levels were trended inconsistently during antibiotic treatment. METHODS: A pharmacist-led procalcitonin protocol was developed and presented to medical staff committees for approval. Data was collected from patients presenting with suspected or confirmed sepsis or lower respiratory tract infections for whom procalcitonin levels were utilized. Patient outcomes before and after protocol implementation were compared. RESULTS: A total of 400 patients were included in the study. The primary outcome of appropriate ordering of initial procalcitonin levels was improved in the postprotocol group relative to the preprotocol group (28% of patients [n = 56] vs 72% of patients [n = 144]; P < 0.001). Patients in the postprotocol group had a procalcitonin level checked at discontinuation more frequently (8% [n = 16] vs 37% [n = 74], P < 0.001) and had a higher rate of appropriate discontinuation of antibiotics (12% [n = 21] vs 46% [n = 77]; P < 0.001). The postprotocol group also had fewer mean days of antibiotic therapy (9.17 vs 6.01; P < 0.001). CONCLUSION: Studies have shown the usefulness of procalcitonin levels for antimicrobial stewardship, but for procalcitonin testing to be properly utilized it must be ordered at the correct times during the patient's therapy. The implementation of a hospital-wide pharmacist-led protocol resulted in an increase in appropriate ordering of baseline procalcitonin levels.
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Farmacéuticos , Polipéptido alfa Relacionado con Calcitonina , Antibacterianos/uso terapéutico , Biomarcadores , Hospitales , Humanos , Estudios RetrospectivosRESUMEN
Diabetes is one of the most common disease states in older adults and there are significant risks to the use of antidiabetic medications. The older adult population varies greatly in functional ability, independence, and cognition. These factors, along with increased risk of hypoglycemia, falls, and other comorbidities, add to the complexity of creating medication regimens to treat diabetes in older adults. In the current review, a person-centered approach to diabetes care in older adults is described to aid clinician decision making. By keeping the patient and their individual factors in the center of the decision, risks of over- or under-treating diabetes can be minimized. The review will discuss person-centered goal setting, practical approaches to diabetes medication management, and specific considerations for choosing medication classes based on patient characteristics. [Journal of Gerontological Nursing, 47(10), 7-13.].
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Diabetes Mellitus , Enfermería Geriátrica , Actividades Cotidianas , Anciano , Comorbilidad , Diabetes Mellitus/tratamiento farmacológico , Humanos , Hipoglucemiantes/uso terapéuticoRESUMEN
OBJECTIVES: To describe the demographics, clinical characteristics, and hospital course among persons <21 years of age with a severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-associated death. METHODS: We conducted a retrospective case series of suspected SARS-CoV-2-associated deaths in the United States in persons <21 years of age during February 12 to July 31, 2020. All states and territories were invited to participate. We abstracted demographic and clinical data, including laboratory and treatment details, from medical records. RESULTS: We included 112 SARS-CoV-2-associated deaths from 25 participating jurisdictions. The median age was 17 years (IQR 8.5-19 years). Most decedents were male (71, 63%), 31 (28%) were Black (non-Hispanic) persons, and 52 (46%) were Hispanic persons. Ninety-six decedents (86%) had at least 1 underlying condition; obesity (42%), asthma (29%), and developmental disorders (22%) were most commonly documented. Among 69 hospitalized decedents, common complications included mechanical ventilation (75%) and acute respiratory failure (82%). The sixteen (14%) decedents who met multisystem inflammatory syndrome in children (MIS-C) criteria were similar in age, sex, and race and/or ethnicity to decedents without MIS-C; 11 of 16 (69%) had at least 1 underlying condition. CONCLUSIONS: SARS-CoV-2-associated deaths among persons <21 years of age occurred predominantly among Black (non-Hispanic) and Hispanic persons, male patients, and older adolescents. The most commonly reported underlying conditions were obesity, asthma, and developmental disorders. Decedents with coronavirus disease 2019 were more likely than those with MIS-C to have underlying medical conditions.
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COVID-19/complicaciones , Síndrome de Respuesta Inflamatoria Sistémica/mortalidad , Adolescente , COVID-19/diagnóstico , COVID-19/mortalidad , Niño , Preescolar , Femenino , Humanos , Lactante , Masculino , Estudios Retrospectivos , Síndrome de Respuesta Inflamatoria Sistémica/complicaciones , Síndrome de Respuesta Inflamatoria Sistémica/diagnóstico , Estados Unidos/epidemiologíaRESUMEN
Chlamydial infections in humans are widely distributed and are responsible for a variety of acute and chronic diseases. Both Chlamydia trachomatis and Chlamydia pneumoniae can lead to chronic conditions that have been linked to complications and sequelae. This study aimed to develop a culture method in order to detect in vitro antichlamydial activity of different extracts obtained from native Argentinian plants used as antimicrobials in local ethnomedicine and to evaluate their inhibitory activity over Chlamydia trachomatis and Chlamydia pneumoniae growth. The inhibitory activity over different stages of the chlamydial life cycle on cell culture was assessed: the entry, the inclusion developing after entry, and the exponential growth stage. Also, the capability of rendering the cell refractory to chlamydial infection by pre-incubation with the extracts was assayed. Inhibitory activity of water-based and organic-based extracts obtained from Hydrocotyle bonariensis Lam. (Araliaceae), Lithraea molleoides (Vell.) Engl. (Anacardiaceae) and Hybanthus parviflorus (Mutis ex L.f.) Baill. (Violaceae) were tested against five strains of Chlamydia trachomatis (L2/434/BU and four clinical isolates form both neonatal conjunctivitis and adult genital infections, genotypes D, E, and K) and against Chlamydia pneumoniae AR39. The Hydrocotyle bonariensis dichloromethane extract showed a broad inhibitory activity over the exponential growth stage of Chlamydia trachomatis and Chlamydia pneumoniae independently from the chlamydial strain and the cell line. These results suggest a high inhibitory potential on both Chlamydiae species. In order to characterize the Hydrocotyle bonariensis dichloromethane active extract, an 1H-NMR was performed. The 1H-NMR characterization showed a spectrum with characteristic signals of the fatty acid moiety of lipids or cerebrosides, volatile phenolics, phytosterols, methyl triterpenes signals, and glucose moiety of the cerebrosides.
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SARS-CoV-2 testing data in North Carolina during the first three months of the state's COVID-19 pandemic were analyzed to determine if there were disparities among intersecting axes of identity including race, Latinx ethnicity, age, urban-rural residence, and residence in a medically underserved area. Demographic and residential data were used to reconstruct patterns of testing metrics (including tests per capita, positive tests per capita, and test positivity rate which is an indicator of sufficient testing) across race-ethnicity groups and urban-rural populations separately. Across the entire sample, 13.1% (38,750 of 295,642) of tests were positive. Within racial-ethnic groups, 11.5% of all tests were positive among non-Latinx (NL) Whites, 22.0% for NL Blacks, and 66.5% for people of Latinx ethnicity. The test positivity rate was higher among people living in rural areas across all racial-ethnic groups. These results suggest that in the first three months of the COVID-19 pandemic, access to COVID-19 testing in North Carolina was not evenly distributed across racial-ethnic groups, especially in Latinx, NL Black and other historically marginalized populations, and further disparities existed within these groups by gender, age, urban-rural status, and residence in a medically underserved area.
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Negro o Afroamericano/estadística & datos numéricos , Prueba de COVID-19/estadística & datos numéricos , COVID-19/diagnóstico , Disparidades en Atención de Salud/estadística & datos numéricos , Hispánicos o Latinos/estadística & datos numéricos , Población Blanca/estadística & datos numéricos , Adolescente , Adulto , Distribución por Edad , Anciano , Niño , Preescolar , Femenino , Accesibilidad a los Servicios de Salud/estadística & datos numéricos , Humanos , Lactante , Masculino , Persona de Mediana Edad , North Carolina , Población Rural , SARS-CoV-2/aislamiento & purificación , Población Urbana , Adulto JovenRESUMEN
Glioblastoma (GBM) is the most aggressive adult glioma with a median survival of 14 months. While standard treatments (safe maximal resection, radiation, and temozolomide chemotherapy) have increased the median survival in favorable O(6)-methylguanine-DNA methyltransferase (MGMT)-methylated GBM (~21 months), a large proportion of patients experience a highly debilitating and rapidly fatal disease. This study examined GBM cellular energetic pathways and blockade using repurposed drugs: the glycolytic inhibitor, namely dicholoroacetate (DCA), and the partial fatty acid oxidation (FAO) inhibitor, namely ranolazine (Rano). Gene expression data show that GBM subtypes have similar glucose and FAO pathways, and GBM tumors have significant upregulation of enzymes in both pathways, compared to normal brain tissue (p < 0.01). DCA and the DCA/Rano combination showed reduced colony-forming activity of GBM and increased oxidative stress, DNA damage, autophagy, and apoptosis in vitro. In the orthotopic Gl261 and CT2A syngeneic murine models of GBM, DCA, Rano, and DCA/Rano increased median survival and induced focal tumor necrosis and hemorrhage. In conclusion, dual targeting of glycolytic and FAO metabolic pathways provides a viable treatment that warrants further investigation concurrently or as an adjuvant to standard chemoradiation for GBM.
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Preventing transmission of SARS-CoV-2, the virus that causes coronavirus disease 2019 (COVID-19), in institutes of higher education presents a unique set of challenges because of the presence of congregate living settings and difficulty limiting socialization and group gatherings. Before August 2020, minimal data were available regarding COVID-19 outbreaks in these settings. On August 3, 2020, university A in North Carolina broadly opened campus for the first time since transitioning to primarily remote learning in March. Consistent with CDC guidance at that time (1,2), steps were taken to prevent the spread of SARS-CoV-2 on campus. During August 3-25, 670 laboratory-confirmed cases of COVID-19 were identified; 96% were among patients aged <22 years. Eighteen clusters of five or more epidemiologically linked cases within 14 days of one another were reported; 30% of cases were linked to a cluster. Student gatherings and congregate living settings, both on and off campus, likely contributed to the rapid spread of COVID-19 within the university community. On August 19, all university A classes transitioned to online, and additional mitigation efforts were implemented. At this point, 334 university A-associated COVID-19 cases had been reported to the local health department. The rapid increase in cases within 2 weeks of opening campus suggests that robust measures are needed to reduce transmission at institutes of higher education, including efforts to increase consistent use of masks, reduce the density of on-campus housing, increase testing for SARS-CoV-2, and discourage student gatherings.
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Infecciones por Coronavirus/epidemiología , Brotes de Enfermedades , Neumonía Viral/epidemiología , Universidades , Adolescente , Adulto , COVID-19 , Infecciones por Coronavirus/transmisión , Femenino , Humanos , Masculino , Persona de Mediana Edad , North Carolina/epidemiología , Pandemias , Neumonía Viral/transmisión , Características de la Residencia , Conducta Social , Estudiantes/psicología , Estudiantes/estadística & datos numéricos , Adulto JovenRESUMEN
CONTEXT: Although the importance of palliative care (PC) integration in the emergency department (ED) has long been recognized, few formalized programs have been reported, and none have evaluated the experience of ED clinicians with embedded PC. OBJECTIVES: We evaluate the experience of ED clinicians with embedded PC in the ED during the coronavirus disease pandemic. METHODS: ED clinicians completed a survey about their perceptions of embedded PC in the ED. We summarized responses to closed-ended items using descriptive statistics and analyzed open-ended items using thematic analysis. RESULTS: There were 134 ED clinicians surveyed. About 101 replied (75% response rate). Of those who had interacted with PC, 100% indicated a benefit of having PC involved. These included freeing up ED clinicians for other tasks (89%), helping them feel more supported (84%), changing the patients care trajectory (67%), and contributing to clinician education (57%) and skills (49%). Among barriers related to engaging PC were difficulty locating them (8%) and lack of time to consult because of ED volume (5%). About 98% of respondents felt that having PC in the ED was either valuable or very valuable. Open-ended responses reflected a positive impact on clinician wellness and improvement in access to high-quality goal-concordant care. Clinicians expressed gratitude for having PC in the ED and noted the importance of having readily available and easily accessible PC in the ED. CONCLUSION: ED clinicians' perception of embedded PC was overall positive, with an emphasis on the impact related to task management, enrichment of PC skills, providing support for the team, and improved care for ED patients.