RESUMEN
BACKGROUND: With increasing concerns about the impact of frequent antibiotic usage on the human microbiome, it is important to characterize the potential for such effects in early antibiotic drug development clinical trials. In a randomised Phase 2a clinical trial study that evaluated the pharmacokinetics of repeated oral doses of gepotidacin, a first-in-chemical-class triazaacenaphthylene antibiotic with a distinct mechanism of action, in adult females with uncomplicated urinary tract infections for gepotidacin (GSK2140944) we evaluated the potential changes in microbiome composition across multiple time points and body-sites ( ClinicalTrials.gov : NCT03568942). RESULTS: Samples of gastrointestinal tract (GIT), pharyngeal cavity and vaginal microbiota were collected with consent from 22 patients at three time points relative to the gepotidacin dosing regimen; Day 1 (pre-dose), Day 5 (end of dosing) and Follow-up (Day 28 ± 3 days). Microbiota composition was determined by DNA sequencing of 16S rRNA gene variable region 4 amplicons. By Day 5, significant changes were observed in the microbiome diversity relative to pre-dose across the tested body-sites. However, by the Follow-up visit, microbiome diversity changes were reverted to compositions comparable to Day 1. The greatest range of microbiome changes by body-site were GIT followed by the pharyngeal cavity then vagina. In Follow-up visit samples we found no statistically significant occurrences of pathogenic taxa. CONCLUSION: Our findings suggest that gepotidacin alteration of the human microbiome after 5 days of dosing is temporary and rebound to pre-dosing states is evident within the first month post-treatment. We recommend that future antibiotic drug trials include similar exploratory investigations into the duration and context of microbiome modification and recovery. TRIAL REGISTRATION: NCT03568942 . Registered 26 June 2018.
Asunto(s)
Acenaftenos/administración & dosificación , Antibacterianos/administración & dosificación , Compuestos Heterocíclicos con 3 Anillos/administración & dosificación , Microbiota/efectos de los fármacos , Infecciones Urinarias/tratamiento farmacológico , Acenaftenos/farmacocinética , Adulto , Antibacterianos/farmacocinética , Bacterias/clasificación , Bacterias/efectos de los fármacos , Bacterias/genética , Bacterias/aislamiento & purificación , Biodiversidad , Femenino , Tracto Gastrointestinal/microbiología , Compuestos Heterocíclicos con 3 Anillos/farmacocinética , Humanos , Persona de Mediana Edad , Faringe/microbiología , Infecciones Urinarias/microbiología , Vagina/microbiologíaRESUMEN
Sepsis is characterized as life-threatening organ dysfunction caused by a dysregulated host immune response to infection. The purpose of this investigation was to determine the differential effect of sepsis on innate versus adaptive immunity, in humans, by examining RNA expression in specific immune cell subsets, including monocytes/macrophages and CD4 and CD8 T cells. A second aim was to determine immunosuppressive mechanisms operative in sepsis that might be amenable to immunotherapy. Finally, we examined RNA expression in peripheral cells from critically ill nonseptic patients and from cancer patients to compare the unique immune response in these disorders with that occurring in sepsis. Monocytes, CD4 T cells, and CD8 T cells from septic patients, critically ill nonseptic patients, patients with metastatic colon cancer, and healthy controls were analyzed by RNA sequencing. Sepsis induced a marked phenotypic shift toward downregulation of multiple immune response pathways in monocytes suggesting that impaired innate immunity may be fundamental to the immunosuppression that characterizes the disorder. In the sepsis cohort, there was a much more pronounced effect on gene transcription in CD4 T cells than in CD8 T cells. Potential mediators of sepsis-induced immunosuppression included Arg-1, SOCS-1, and SOCS-3, which were highly upregulated in multiple cell types. Multiple negative costimulatory molecules, including TIGIT, Lag-3, PD-1, and CTLA-4, were also highly upregulated in sepsis. Although cancer had much more profound effects on gene transcription in CD8 T cells, common immunosuppressive mechanisms were present in all disorders, suggesting that immunoadjuvant therapies that are effective in one disease may also be efficacious in the others.
Asunto(s)
Linfocitos T CD4-Positivos/inmunología , Linfocitos T CD8-positivos/inmunología , Regulación Neoplásica de la Expresión Génica/inmunología , Monocitos/inmunología , Neoplasias/inmunología , ARN Neoplásico/inmunología , Sepsis/inmunología , Análisis de Secuencia de ARN , Adulto , Anciano , Linfocitos T CD4-Positivos/patología , Linfocitos T CD8-positivos/patología , Enfermedad Crítica , Femenino , Humanos , Tolerancia Inmunológica , Masculino , Persona de Mediana Edad , Monocitos/patología , Proteínas de Neoplasias/genética , Proteínas de Neoplasias/inmunología , Neoplasias/genética , Neoplasias/patología , Estudios Prospectivos , ARN Neoplásico/genética , Sepsis/genética , Sepsis/patologíaRESUMEN
A phase 2 study of gepotidacin demonstrated the safety and efficacy of 3 gepotidacin doses (750 mg every 12 h [q12h], 1,000 mg q12h, and 1,000 mg every 8 h [q8h]) in hospitalized patients with suspected/confirmed Gram-positive acute bacterial skin and skin structure infections (ABSSSIs). Evaluating microbiology outcomes and responses were secondary endpoints. Pretreatment isolates recovered from infected lesions underwent susceptibility testing per Clinical and Laboratory Standards Institute guidelines. Staphylococcus aureus accounted for 78/102 (76%) of Gram-positive isolates; 54/78 (69%) were methicillin-resistant S. aureus (MRSA), and 24/78 (31%) were methicillin-susceptible S. aureus (MSSA). Posttherapy microbiological success (culture-confirmed eradication of the pretreatment pathogen or presumed eradication based on a clinical outcome of success) for S. aureus was 90% for the gepotidacin 750-mg q12h group, 89% for the 1,000-mg q12h, and 73% in the 1000-mg q8h group. For 78 S. aureus isolates obtained from pretreatment lesions, gepotidacin MIC50/MIC90 values were 0.25/0.5 µg/ml against both MRSA and MSSA. Isolates recovered from the few patients with posttreatment cultures showed no significant reduction in gepotidacin susceptibility (≥4-fold MIC increase) between pretreatment and posttreatment isolates. Two of the 78 S. aureus isolates from pretreatment lesions had elevated gepotidacin MICs and had mutations known to occur in quinolone-resistant S. aureus (GyrA S84L, ParC S80Y, and ParE D422E) or to confer elevated MICs to novel bacterial topoisomerase inhibitors (GyrA D83N, both isolates; ParC V67A, one isolate). This first report of microbiological outcomes and responses of gepotidacin in patients with ABSSSIs supports further evaluation of gepotidacin as a novel first-in-class antibacterial agent. (This study has been registered at ClinicalTrials.gov under identifier NCT02045797.).
Asunto(s)
Acenaftenos/farmacología , Antibacterianos/farmacología , Compuestos Heterocíclicos con 3 Anillos/farmacología , Staphylococcus aureus Resistente a Meticilina/efectos de los fármacos , Bacterias Grampositivas/efectos de los fármacos , Staphylococcus aureus Resistente a Meticilina/genética , Pruebas de Sensibilidad Microbiana , Mutación/genética , Piel/microbiología , Enfermedades Cutáneas Infecciosas/microbiología , Staphylococcus aureus/efectos de los fármacos , Staphylococcus aureus/genéticaRESUMEN
The relationship between criminogenic risk and mental illness in justice involved persons with mental illness is complex and poorly understood by clinicians, researchers, administrators, and policy makers alike. Historically, when providing services to justice involved persons with mental illness, clinicians have emphasized mental health recovery (eg, psychiatric rehabilitation) at the exclusion of treatments targeted at criminogenic risk. More recently, however, researchers have demonstrated with great clarity that criminogenic risk not only contributes but is likely the leading factor in the criminal behavior committed by persons with mental illness. Yet, we still do not know the nature of this criminogenic-mental illness relationship, how this relationship impacts treatment needs, and of ultimate concern, what this relationship means in terms of individual and societal outcomes. In this paper we briefly define criminogenic risk and the research that demonstrates the role of criminogenic risk in criminal justice involvement of persons with mental illness. We also review prevalence rates of persons with mental illness justice involvement, and then discuss important factors to be considered when assessing risk to include both criminogenic and mental illness risk. We conclude this paper by reviewing treatment and management strategies for persons with mental illness that are criminal justice involved particularly reviewing and building off the recommendations put forth by Bartholomew & Morgan.
Asunto(s)
Conducta Criminal , Trastornos Mentales/epidemiología , Violencia/estadística & datos numéricos , Psicología Forense/estadística & datos numéricos , Humanos , Trastornos Mentales/psicologíaRESUMEN
BACKGROUND: Little is known about the interactions between the lung microbiome and host response in chronic obstructive pulmonary disease (COPD). METHODS: We performed a longitudinal 16S ribosomal RNA gene-based microbiome survey on 101 sputum samples from 16 healthy subjects and 43 COPD patients, along with characterization of host sputum transcriptome and proteome in COPD patients. RESULTS: Dysbiosis of sputum microbiome was observed with significantly increased relative abundance of Moraxella in COPD versus healthy subjects and during COPD exacerbations, and Haemophilus in COPD ex-smokers versus current smokers. Multivariate modeling on sputum microbiome, host transcriptome and proteome profiles revealed that significant associations between Moraxella and Haemophilus, host interferon and pro-inflammatory signaling pathways and neutrophilic inflammation predominated among airway host-microbiome interactions in COPD. While neutrophilia was positively correlated with Haemophilus, interferon signaling was more strongly linked to Moraxella. Moreover, while Haemophilus was significantly associated with host factors both in stable state and during exacerbations, Moraxella-associated host responses were primarily related to exacerbations. CONCLUSIONS: Our study highlights a significant airway host-microbiome interplay associated with COPD inflammation and exacerbations. These findings indicate that Haemophilus and Moraxella influence different components of host immune response in COPD, and that novel therapeutic strategies should consider targeting these bacteria and their associated host pathways in COPD.
Asunto(s)
Interacciones Microbiota-Huesped/fisiología , Pulmón/microbiología , Pulmón/fisiología , Microbiota/fisiología , Enfermedad Pulmonar Obstructiva Crónica/genética , Enfermedad Pulmonar Obstructiva Crónica/microbiología , Anciano , Femenino , Perfilación de la Expresión Génica/métodos , Haemophilus influenzae/genética , Humanos , Estudios Longitudinales , Masculino , Persona de Mediana Edad , Moraxella/genética , Esputo/microbiología , Esputo/fisiologíaRESUMEN
BACKGROUND: Alterations in the composition of the lung microbiome associated with adverse clinical outcomes, known as dysbiosis, have been implicated with disease severity and exacerbations in COPD. OBJECTIVE: To characterise longitudinal changes in the lung microbiome in the AERIS study (Acute Exacerbation and Respiratory InfectionS in COPD) and their relationship with associated COPD outcomes. METHODS: We surveyed 584 sputum samples from 101 patients with COPD to analyse the lung microbiome at both stable and exacerbation time points over 1 year using high-throughput sequencing of the 16S ribosomal RNA gene. We incorporated additional lung microbiology, blood markers and in-depth clinical assessments to classify COPD phenotypes. RESULTS: The stability of the lung microbiome over time was more likely to be decreased in exacerbations and within individuals with higher exacerbation frequencies. Analysis of exacerbation phenotypes using a Markov chain model revealed that bacterial and eosinophilic exacerbations were more likely to be repeated in subsequent exacerbations within a subject, whereas viral exacerbations were not more likely to be repeated. We also confirmed the association of bacterial genera, including Haemophilus and Moraxella, with disease severity, exacerbation events and bronchiectasis. CONCLUSIONS: Subtypes of COPD have distinct bacterial compositions and stabilities over time. Some exacerbation subtypes have non-random probabilities of repeating those subtypes in the future. This study provides insights pertaining to the identification of bacterial targets in the lung and biomarkers to classify COPD subtypes and to determine appropriate treatments for the patient. TRIAL REGISTRATION NUMBER: Results, NCT01360398.
Asunto(s)
Progresión de la Enfermedad , Pulmón/microbiología , Microbiota , Enfermedad Pulmonar Obstructiva Crónica/microbiología , Enfermedad Pulmonar Obstructiva Crónica/patología , Eosinofilia Pulmonar/complicaciones , Anciano , Femenino , Haemophilus/aislamiento & purificación , Humanos , Estudios Longitudinales , Masculino , Persona de Mediana Edad , Moraxella/aislamiento & purificación , Estudios Observacionales como Asunto , Fenotipo , Prevotella/aislamiento & purificación , Enfermedad Pulmonar Obstructiva Crónica/virología , Eosinofilia Pulmonar/patología , ARN Ribosómico 16S/análisis , Recurrencia , Índice de Severidad de la Enfermedad , Esputo/citología , Esputo/microbiología , Streptococcus/aislamiento & purificación , Veillonella/aislamiento & purificaciónRESUMEN
BACKGROUND: Recent studies suggest that lung microbiome dysbiosis, the disease associated disruption of the lung microbial community, might play a key role in chronic obstructive pulmonary disease (COPD) exacerbations. However, characterising temporal variability of the microbiome from large longitudinal COPD cohorts is needed to better understand this phenomenon. METHODS: We performed a 16S ribosomal RNA survey of microbiome on 716 sputum samples collected longitudinally at baseline and exacerbations from 281 subjects with COPD at three UK clinical centres as part of the COPDMAP consortium. RESULTS: The microbiome composition was similar among centres and between stable and exacerbations except for a small significant decrease of Veillonella at exacerbations. The abundance of Moraxella was negatively associated with bacterial alpha diversity. Microbiomes were distinct between exacerbations associated with bacteria versus eosinophilic airway inflammation. Dysbiosis at exacerbations, measured as significant within subject deviation of microbial composition relative to baseline, was present in 41% of exacerbations. Dysbiosis was associated with increased exacerbation severity indicated by a greater fall in forced expiratory volume in one second, forced vital capacity and a greater increase in CAT score, particularly in exacerbations with concurrent eosinophilic inflammation. There was a significant difference of temporal variability of microbial alpha and beta diversity among centres. The variation of beta diversity significantly decreased in those subjects with frequent historical exacerbations. CONCLUSIONS: Microbial dysbiosis is a feature of some exacerbations and its presence, especially in concert with eosinophilic inflammation, is associated with more severe exacerbations indicated by a greater fall in lung function. TRIAL REGISTRATION NUMBER: Results, NCT01620645.
Asunto(s)
Microbiota , Moraxella/aislamiento & purificación , Enfermedad Pulmonar Obstructiva Crónica/microbiología , Esputo/microbiología , Veillonella/aislamiento & purificación , Disbiosis , Encuestas Epidemiológicas , Humanos , Reino UnidoRESUMEN
MTN-017 compared the safety and acceptability of daily oral emtricitabine/tenofovir disoproxil fumarate, daily reduced-glycerin 1% tenofovir gel applied rectally, and the same gel applied before and after receptive anal intercourse. The Data Convergence Interview (DCI) and the Pharmacokinetic Data Convergence Interview (PK-DCI) were brief, collaborative interactions conducted with participants during adherence counseling sessions to improve accurate measurement of adherence to study product use. DCIs converged data from product return counts and participants' responses to daily text messages. PK-DCIs, conducted 4 weeks later, converged results of the DCI with PK from the corresponding period. CIs were easily incorporated into adherence counseling sessions, increased the accuracy of adherence data, and provided valuable context to data on product use. Participants were readily engaged in the interviews but, if they felt confronted, provided more guarded responses. As such, how these CIs are conducted is critical to engage participants, even those with poor adherence, to openly discuss challenges with product use.
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Fármacos Anti-VIH/administración & dosificación , Fármacos Anti-VIH/farmacocinética , Consejo , Infecciones por VIH/tratamiento farmacológico , Cumplimiento de la Medicación/estadística & datos numéricos , Adulto , Exactitud de los Datos , Emtricitabina/administración & dosificación , Emtricitabina/farmacocinética , Femenino , Infecciones por VIH/prevención & control , Humanos , Masculino , Autoinforme , Tenofovir/administración & dosificación , Tenofovir/farmacocinéticaRESUMEN
We evaluated the adherence and acceptability of a vaginal ring containing dapivirine, maraviroc, or both drugs for 28 days during a Phase I placebo-controlled trial in 48 HIV-negative sexually abstinent U.S. women aged 18-40. Adherence was assessed weekly by clinical interview and computer-assisted self-interviewing; acceptability assessment occurred at the last product-use visit. Study retention was 98 % (47/48); 94 % (45/48) reported being fully adherent with ring use during the 28-day period. Two participants experienced the ring partially coming out. Analysis was blinded and behavioral data were combined across study groups. Most women reported being very comfortable having the ring in their vagina; 44 % preferred continuous use, whereas 51 % had no preference compared to episodic use. Although a range of minor ring concerns were expressed, few were actually experienced. High adherence to and acceptability of this vaginal ring in this Phase I trial contributes to its promise as a sustained mechanism for multidrug vaginal microbicide delivery.
Asunto(s)
Fármacos Anti-VIH/administración & dosificación , Dispositivos Anticonceptivos Femeninos , Ciclohexanos/administración & dosificación , Infecciones por VIH/prevención & control , Cumplimiento de la Medicación , Aceptación de la Atención de Salud , Profilaxis Pre-Exposición , Pirimidinas/administración & dosificación , Envío de Mensajes de Texto , Triazoles/administración & dosificación , Adulto , Método Doble Ciego , Quimioterapia Combinada , Estudios de Factibilidad , Femenino , Humanos , Entrevista Psicológica , Maraviroc , Evaluación de Programas y Proyectos de Salud , SudáfricaRESUMEN
GSK1322322 is a novel antibacterial agent under development, and it has known antibacterial activities against multidrug-resistant respiratory and skin pathogens through its inhibition of the bacterial peptide deformylase. Here, we used next-generation sequencing (NGS) of the bacterial 16S rRNA genes from stool samples collected from 61 healthy volunteers at the predosing and end-of-study time points to determine the effects of GSK1322322 on the gastrointestinal (GI) microbiota in a phase I, randomized, double-blind, and placebo-controlled study. GSK1322322 was administered either intravenously (i.v.) only or in an oral-i.v. combination in single- and repeat-dose-escalation infusions. Analysis of the 16S rRNA sequence data found no significant changes in the relative abundances of GI operational taxonomic units (OTUs) between the prestudy and end-of-study samples for either the placebo- or i.v.-only-treated subjects. However, oral-i.v. treatment resulted in significant decreases in some bacterial taxa, the Firmicutes and Bacteroidales, and increases in others, the Betaproteobacteria, Gammaproteobacteria, and Bifidobacteriaceae. Microbiome diversity plots clearly differentiated the end-of-study oral-i.v.-dosed samples from all others collected. The changes in genome function as inferred from species composition suggest an increase in bacterial transporter and xenobiotic metabolism pathways in these samples. A phylogenetic analysis of the peptide deformylase protein sequences collected from the published genomes of clinical isolates previously tested for GSK1322322 in vitro susceptibility and GI bacterial reference genomes suggests that antibiotic target homology is one of several factors that influences the response of GI microbiota to this antibiotic. Our study shows that dosing regimen and target class are important factors when considering the impact of antibiotic usage on GI microbiota. (This clinical trial was registered at the GlaxoSmithKline Clinical Study Register under study identifier PDF 113376.).
Asunto(s)
Amidohidrolasas/antagonistas & inhibidores , Antibacterianos/farmacología , Compuestos Bicíclicos Heterocíclicos con Puentes/farmacología , Ácidos Hidroxámicos/farmacología , Microbiota/efectos de los fármacos , Microbiota/genética , Betaproteobacteria/efectos de los fármacos , Betaproteobacteria/genética , Bifidobacterium/efectos de los fármacos , Bifidobacterium/genética , Método Doble Ciego , Gammaproteobacteria/efectos de los fármacos , Gammaproteobacteria/genética , Voluntarios Sanos , Secuenciación de Nucleótidos de Alto Rendimiento , Humanos , ARN Ribosómico 16S/genéticaRESUMEN
The hepatitis C virus (HCV) NS4B protein is an antiviral therapeutic target for which small-molecule inhibitors have not been shown to exhibit in vivo efficacy. We describe here the in vitro and in vivo antiviral activity of GSK8853, an imidazo[1,2-a]pyrimidine inhibitor that binds NS4B protein. GSK8853 was active against multiple HCV genotypes and developed in vitro resistance mutations in both genotype 1a and genotype 1b replicons localized to the region of NS4B encoding amino acids 94 to 105. A 20-day in vitro treatment of replicons with GSK8853 resulted in a 2-log drop in replicon RNA levels, with no resistance mutation breakthrough. Chimeric replicons containing NS4B sequences matching known virus isolates showed similar responses to a compound with genotype 1a sequences but altered efficacy with genotype 1b sequences, likely corresponding to the presence of known resistance polymorphs in those isolates. In vivo efficacy was tested in a humanized-mouse model of HCV infection, and the results showed a 3-log drop in viral RNA loads over a 7-day period. Analysis of the virus remaining at the end of in vivo treatment revealed resistance mutations encoding amino acid changes that had not been identified by in vitro studies, including NS4B N56I and N99H. Our findings provide an in vivo proof of concept for HCV inhibitors targeting NS4B and demonstrate both the promise and potential pitfalls of developing NS4B inhibitors.
Asunto(s)
Antivirales/farmacología , Farmacorresistencia Viral/genética , Hepacivirus/efectos de los fármacos , Hepatitis C/tratamiento farmacológico , Imidazoles/farmacología , Piridinas/farmacología , ARN Viral/antagonistas & inhibidores , Animales , Antivirales/síntesis química , Línea Celular Tumoral , Evaluación Preclínica de Medicamentos , Expresión Génica , Genotipo , Hepacivirus/genética , Hepacivirus/crecimiento & desarrollo , Hepatitis C/patología , Hepatitis C/virología , Hepatocitos/efectos de los fármacos , Hepatocitos/patología , Hepatocitos/virología , Humanos , Imidazoles/síntesis química , Ratones , Ratones Transgénicos , Mutación , Piridinas/síntesis química , ARN Viral/biosíntesis , ARN Viral/genética , Replicón/efectos de los fármacos , Resultado del Tratamiento , Carga Viral/efectos de los fármacos , Proteínas no Estructurales Virales , Replicación Viral/efectos de los fármacosRESUMEN
GSK2251052, a novel leucyl-tRNA synthetase (LeuRS) inhibitor, was in development for the treatment of infections caused by multidrug-resistant Gram-negative pathogens. In a phase II study (study LRS114688) evaluating the efficacy of GSK2251052 in complicated urinary tract infections, resistance developed very rapidly in 3 of 14 subjects enrolled, with ≥32-fold increases in the GSK2251052 MIC of the infecting pathogen being detected. A fourth subject did not exhibit the development of resistance in the baseline pathogen but posttherapy did present with a different pathogen resistant to GSK2251052. Whole-genome DNA sequencing of Escherichia coli isolates collected longitudinally from two study LRS114688 subjects confirmed that GSK2251052 resistance was due to specific mutations, selected on the first day of therapy, in the LeuRS editing domain. Phylogenetic analysis strongly suggested that resistant Escherichia coli isolates resulted from clonal expansion of baseline susceptible strains. This resistance development likely resulted from the confluence of multiple factors, of which only some can be assessed preclinically. Our study shows the challenges of developing antibiotics and the importance of clinical studies to evaluate their effect on disease pathogenesis. (These studies have been registered at ClinicalTrials.gov under registration no. NCT01381549 for the study of complicated urinary tract infections and registration no. NCT01381562 for the study of complicated intra-abdominal infections.).
Asunto(s)
Compuestos de Boro/farmacología , Farmacorresistencia Bacteriana/efectos de los fármacos , Inhibidores Enzimáticos/farmacología , Escherichia coli/efectos de los fármacos , Leucina-ARNt Ligasa/antagonistas & inhibidores , Infecciones Urinarias/tratamiento farmacológico , Antibacterianos/farmacología , Antiinfecciosos Urinarios/farmacología , Compuestos de Boro/uso terapéutico , Escherichia coli/genética , Escherichia coli/aislamiento & purificación , Escherichia coli/patogenicidad , Infecciones por Escherichia coli/tratamiento farmacológico , Infecciones por Escherichia coli/microbiología , Genoma Bacteriano , Humanos , Mutación , Filogenia , Infecciones Urinarias/microbiologíaRESUMEN
GSK2485852 (referred to here as GSK5852) is a hepatitis C virus (HCV) NS5B polymerase inhibitor with 50% effective concentrations (EC50s) in the low nanomolar range in the genotype 1 and 2 subgenomic replicon system as well as the infectious HCV cell culture system. We have characterized the antiviral activity of GSK5852 using chimeric replicon systems with NS5B genes from additional genotypes as well as NS5B sequences from clinical isolates of patients infected with HCV of genotypes 1a and 1b. The inhibitory activity of GSK5852 remained unchanged in these intergenotypic and intragenotypic replicon systems. GSK5852 furthermore displays an excellent resistance profile and shows a <5-fold potency loss across the clinically important NS5B resistance mutations P495L, M423T, C316Y, and Y448H. Testing of a diverse mutant panel also revealed a lack of cross-resistance against known resistance mutations in other viral proteins. Data from both the newer 454 sequencing method and traditional population sequencing showed a pattern of mutations arising in the NS5B RNA-dependent RNA polymerase in replicon cells exposed to GSK5852. GSK5852 was more potent than HCV-796, an earlier inhibitor in this class, and showed greater reductions in HCV RNA during long-term treatment of replicons. GSK5852 is similar to HCV-796 in its activity against multiple genotypes, but its superior resistance profile suggests that it could be an attractive component of an all-oral regimen for treating HCV.
Asunto(s)
Antivirales/farmacología , Ácidos Borónicos/farmacología , Farmacorresistencia Viral/efectos de los fármacos , Inhibidores Enzimáticos/farmacología , Replicón/efectos de los fármacos , Sulfonamidas/farmacología , Proteínas no Estructurales Virales/antagonistas & inhibidores , Benzofuranos/farmacología , Línea Celular , Farmacorresistencia Viral/genética , Pruebas de Enzimas , Genotipo , Hepacivirus/efectos de los fármacos , Hepacivirus/genética , Hepacivirus/aislamiento & purificación , Hepatitis C Crónica/virología , Hepatocitos/efectos de los fármacos , Hepatocitos/virología , Secuenciación de Nucleótidos de Alto Rendimiento , Humanos , Cinética , Pruebas de Sensibilidad Microbiana , Tipificación Molecular , Mutación , Proteínas no Estructurales Virales/genética , Proteínas no Estructurales Virales/metabolismoRESUMEN
Aquatic animals are diverse in terms of species, but also in terms of production systems, the people involved, and the benefits achieved. In this concept piece, we draw on literature to outline how the diversity of aquatic animals, their production, and their consumption all influence their impact within the food system. Built on evidence from an array of reductionist and non-reductionist literature, we suggest that food systems researchers and policymakers adapt current methods and theoretical frameworks to appropriately contextualise aquatic animals in broader food systems. We do this through combining current understandings of food systems theory, value chain, livelihoods, nutritional outcomes, and planetary boundaries thinking. We make several claims around understanding the role of aquatic animals in terms of nutritional output and environmental impacts. We suggest a need to consider: (1) the diversity of species and production methods; (2) variable definitions of an "edible yield"; (3) circular economy principles and the impacts of co-products, and effects beyond nutrient provision; (4) role of aquatic animals in the overall diet; (5) contextual effects of preservation, preparation, cooking, and consumer choices; (6) globalised nature of aquatic animal trade across the value chain; and (7) that aquatic animals are produced from a continuum, rather than a dichotomy, of aquaculture or fisheries. We conclude by proposing a new framework that involves cohesive interdisciplinary discussions around aquatic animal foods and their role in the broader food system.
RESUMEN
This study examined clinical syndromes, personality disorders, and neurocognitive problems in adult male (n = 523) and female inmates (n = 523) and a sample of unincarcerated adult women (n = 523). Inmates were administered the Coolidge Correctional Inventory (CCI), and the unincarcerated sample was given an identical test, the Coolidge Axis II Inventory. Although there were significant differences between the two inmate groups on a majority of the 32 CCI scales, only two scales achieved a medium effect size. The two inmate groups were found to be highly similar in a comparison of ranked personality disorder prevalence rates. Consistent with previous literature, male inmates had a significantly higher prevalence of antisocial personality disorder than female inmates (24% vs. 18%). Female inmates had double the prevalence of male inmates on the borderline and histrionic personality disorder scales. Female inmates also reported significantly more general neuropsychological dysfunction, specifically memory problems and neurosomatic symptoms, than male inmates. Female inmates also reported significantly higher levels of anxiety, depression, symptoms of schizophrenia, post-traumatic stress disorder, attention deficit hyperactivity disorder, and depersonalization than male inmates. Overall, the findings support previous research of high levels of psychological and neuropsychological problems in inmates, regardless of gender, and reinforces the need for comprehensive mental health screening of offender populations.
Asunto(s)
Cognición , Trastornos de la Personalidad/psicología , Prisioneros/psicología , Caracteres Sexuales , Adolescente , Adulto , Anciano , Trastornos de Ansiedad/epidemiología , Comorbilidad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Trastornos de la Personalidad/diagnóstico , Trastornos de la Personalidad/epidemiología , Prevalencia , Trastornos por Estrés Postraumático/epidemiología , Trastornos Relacionados con Sustancias/epidemiología , MujeresRESUMEN
OBJECTIVE: To examine the safety and acceptance "Vibwife", a new moving mattress to support mobilization of pregnant women during labor. DESIGN: The study was a prospective medical device clinical study without a control group. The study was designed in intervention phases, with safety evaluation by a safety review board after each intervention phase. SETTING: The study took place at the University Hospital of Basel, Switzerland. PARTICIPANTS: 50 women were included with a low risk singleton pregnancy > 37th weeks during the first stage of labor. INTERVENTION: Evaluation of the safety and acceptance of women, midwives and physicians during the first stage of labor. The intervention was carried out in 3 phases. In the first phase five women in labor used the device for 10 minutes, the next 10 women for 20 minutes, and finally the next 35 women for 30 minutes. MEASUREMENTS: Measurement included capturing Adverse Events (AEs) (including Adverse Device Effects (ADEs)), Serious Adverse Events (SAEs) and recording vital parameters before, during, and after intervention, as well as CTG before and after intervention. Acceptance by women, midwives and physicians was measured by questionnaires with a 4-point Likert scale and pain intensity by a discrete Visual Analogue Scale (VAS) from 0-10. FINDINGS: No SAE occurred during the trial. A total of 32 AEs occurred in 25 women during the intervention or in the 30 minutes follow-up. The most frequently observed AEs were modification of blood pressure and CTG abnormalities. None of the 32 AEs led to sequels of any kind. The relationship between AEs occurrence and the use of the medical device was viewed as certain in 2 cases (6.2%), possible or likely in 8 cases (25%), and unlikely or unrelated in 22 cases (68, 7%). Overall, women, midwives and physicians reported high satisfaction with their use of the device. KEY CONCLUSIONS AND IMPLICATIONS FOR PRACTICE: The medical device "Vibwife" was judged as safe for women. Acceptance among women and health personnel was good. Considering the potential benefits of mobilization during labor, this new medical device could be a very interesting adjunct to other obstetrical tools. Particularly, women whose mobility is restrained by epidural anesthesia while giving birth could be very suitable candidates. To answer the question of efficacy, a randomized-controlled trial is required.
Asunto(s)
Anestesia Epidural , Trabajo de Parto , Partería , Femenino , Humanos , Parto , Embarazo , Estudios ProspectivosRESUMEN
Interventions that focus on the psychiatric and criminogenic needs of justice-involved persons with mental illness are rare. A Treatment Manual for Justice Involved Persons with Mental Illness: Changing Lives and Changing Outcomes (CLCO) was developed specifically for meeting these co-occurring needs. Although results from an initial evaluation indicated that CLCO successfully resulted in reduced symptomatology and some aspects of criminal risk, much additional work examining the effectiveness of CLCO remains to be done. The present evaluation examined the extent to which offenders gained knowledge (i.e., content retention) throughout the program, the extent to which content retention was predictive of program completion, and the extent to which treatment engagement (i.e., session attendance and homework completion) was predictive of program completion. Participants consisted of male and female felony offenders in a residential treatment facility (n = 130), and dually diagnosed male offenders in a residential treatment facility (n = 39). Results indicated that participants in this intervention retained treatment content, and this content retention was predictive of treatment completion. Implications of these findings suggest that CLCO is a promising new intervention for justice-involved persons with mental illness. (PsycINFO Database Record (c) 2019 APA, all rights reserved).
Asunto(s)
Criminales , Trastornos Mentales/terapia , Enfermos Mentales , Evaluación de Procesos y Resultados en Atención de Salud , Psicoterapia/métodos , Tratamiento Domiciliario/métodos , Adulto , Derecho Penal , Diagnóstico Dual (Psiquiatría) , Femenino , Humanos , Masculino , Persona de Mediana EdadRESUMEN
In order to improve targeted therapeutic approaches for asthma patients, insights into the molecular mechanisms that differentially contribute to disease phenotypes, such as obese asthmatics or severe asthmatics, are required. Here we report immunological and microbiome alterations in obese asthmatics (n = 50, mean age = 45), non-obese asthmatics (n = 53, mean age = 40), obese non-asthmatics (n = 51, mean age = 44) and their healthy counterparts (n = 48, mean age = 39). Obesity is associated with elevated proinflammatory signatures, which are enhanced in the presence of asthma. Similarly, obesity or asthma induced changes in the composition of the microbiota, while an additive effect is observed in obese asthma patients. Asthma disease severity is negatively correlated with fecal Akkermansia muciniphila levels. Administration of A. muciniphila to murine models significantly reduces airway hyper-reactivity and airway inflammation. Changes in immunological processes and microbiota composition are accentuated in obese asthma patients due to the additive effects of both disease states, while A. muciniphila may play a non-redundant role in patients with a severe asthma phenotype.
Asunto(s)
Asma/inmunología , Microbioma Gastrointestinal/inmunología , Interacciones Microbiota-Huesped/inmunología , Obesidad/inmunología , Verrucomicrobia/inmunología , Adulto , Akkermansia , Animales , Asma/complicaciones , Asma/diagnóstico , Asma/microbiología , Modelos Animales de Enfermedad , Heces/microbiología , Femenino , Volumen Espiratorio Forzado , Voluntarios Sanos , Humanos , Masculino , Ratones , Persona de Mediana Edad , Obesidad/complicaciones , Obesidad/microbiología , Sistema Respiratorio/inmunología , Índice de Severidad de la Enfermedad , Verrucomicrobia/aislamiento & purificaciónRESUMEN
Determining the genetic characteristics of Staphylococcus aureus is important for better understanding of the global and dynamic epidemiology of this organism as we witness the emergence and spread of virulent and antibiotic-resistant clones. We genotyped 292 S. aureus isolates (105 methicillin resistant and 187 methicillin susceptible) using a combination of pulsed-field gel electrophoresis, multilocus sequence typing, and SCCmec typing. In addition, S. aureus isolates were tested for the presence of the Panton-Valentine leukocidin (PVL) genes. Isolates were recovered from patients with uncomplicated skin infections in 10 different countries during five phase III global clinical trials of retapamulin, a new topical antibiotic agent. The most common methicillin-resistant clone had multilocus sequence type 8, pulsed-field type USA300, and SCCmec type IV and possessed the PVL genes. This clone was isolated exclusively in the United States. The most common PVL-positive, methicillin-susceptible clone had multilocus sequence type 121 and pulsed-field type USA1200. This clone was found primarily in South Africa and the Russian Federation. Other clones were found at lower frequencies and were limited in their geographic distribution. Overall, considerable genetic diversity was observed within multilocus sequence type clonal complexes and pulsed-field types.