Publications by authors named "Lewis"

Article Synopsis
  • Antiplatelet therapy, particularly with P2Y receptor inhibitors alongside aspirin, is essential for treating coronary artery disease, and different medication options can help tailor patient care.
  • A study investigated the effects of a specific genetic mutation (G143E in CES1) on the effectiveness of clopidogrel and ticagrelor in inhibiting platelet aggregation in patients.
  • Results showed that the G143E mutation significantly affected platelet response to clopidogrel, but not to ticagrelor, indicating ticagrelor may provide more consistent treatment for patients with clopidogrel response-altering genetics.
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Objectives: Intubation is a common procedure in acute hypoxemic respiratory failure (AHRF), with minimal evidence to guide decision-making. We conducted a survey of when to intubate patients with AHRF to measure the influence of clinical variables on intubation decision-making and quantify variability.

Design: Factorial vignette-based survey asking "Would you recommend intubation?" Respondents selected an ordinal recommendation from a 5-point scale ranging from "Definite no" to "Definite yes" for up to ten randomly allocated vignettes.

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Understanding transmission pathways of important opportunistic, drug-resistant pathogens, such as extended-spectrum beta-lactamase (ESBL)-producing , is essential to implementing targeted prevention strategies to interrupt transmission and reduce the number of infections. To link transmission of ESBL-producing (ESBL-EC) between two sources, single-nucleotide resolution of strains, as well as diversity within and between samples, is required. However, the microbiological methods to best track these pathogens are unclear.

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  • * It forms a symbiotic relationship with actinobacterium, aiding in nitrogen fixation, which contributes to its desirable qualities.
  • * Research focused on analyzing red alder’s plant phenol metabolites through integrated transcriptome and metabolome studies to comprehend its biochemical pathways and enhance understanding of its medicinal and material benefits.
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Female ticks deposit large egg clusters that range in size from hundreds to thousands. These egg clusters are restricted to a deposition site as they are stationary, usually under leaf litter and other debris. In some habitats, these sites can be exposed to periodic flooding.

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Patients with rare diseases often experience prolonged diagnostic delays. Ordering appropriate genetic tests is crucial yet challenging, especially for general pediatricians without genetic expertise. Recent American College of Medical Genetics (ACMG) guidelines embrace early use of exome sequencing (ES) or genome sequencing (GS) for conditions like congenital anomalies or developmental delays while still recommend gene panels for patients exhibiting strong manifestations of a specific disease.

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A female patient with previous vitrectomy for epiretinal membrane in the left eye underwent bilateral selective laser trabeculoplasty (SLT) for pigmentary glaucoma and subsequently developed cystoid macular oedema (CMO) in the vitrectomised eye. This resolved fully with treatment with topical steroids and non-steroidal anti-inflammatory drug (NSAID) drops. This complication has been very rarely reported in the literature, and a subsequent internal audit found a very low rate of CMO temporally related to SLT of 0.

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  • - Monoclonal antibodies (mAbs) produced in Chinese Hamster Ovary (CHO) cells are crucial in treating diseases, but optimizing their production while maintaining high quality is a major challenge
  • - Improving cell culture media, through methods like media blending and statistical designs, is essential for enhancing cell growth, productivity, and quality of mAbs
  • - This review discusses recent advancements in media optimization using systems biology (SB) and machine learning (ML), and suggests that combining these approaches could lead to significant improvements in mAb production efficiency and scalability
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The plastids of photosynthetic organisms on land are predominantly "primary plastids," derived from an ancient endosymbiosis of a cyanobacterium. Conversely, the plastids of marine photosynthetic organisms were mostly gained through subsequent endosymbioses of photosynthetic eukaryotes generating so-called "complex plastids." The plastids of the major eukaryotic lineages-cryptophytes, haptophytes, ochrophytes, dinoflagellates, and apicomplexans-were posited to derive from a single secondary endosymbiosis of a red alga in the "chromalveloate" hypothesis.

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Introduction: New anti-vascular endothelial growth factor (VEGF) treatments are emerging for the treatment of diabetic macular edema (DME)/neovascular age-related macular degeneration (nAMD). This study aimed to explore the treatment attributes patients find important when deciding on treatment options.

Methods: This noninterventional survey study assessed treatment preferences through a discrete choice experiment (DCE) among patients with DME/nAMD in the USA, Canada, France, Italy, Spain, and the UK.

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Macro-scale distribution of air pollution concentrations is influenced by factors including geography, weather, industry, transport and regulation. Pollution sources are unevenly distributed, with some communities disproportionately impacted by higher emissions. This study separates the effects of deprivation from ethnicity as factors that influence proximity to pollution sources.

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Purpose: The information on the practice of radiotherapy, including intensity-modulated radiotherapy (IMRT) use for rectal cancer in India, is lacking. This national survey was planned to understand the current status of knowledge, attitudes, and practice among radiation oncologists, specifically concerning the practice of IMRT for rectal cancers.

Materials And Methods: A national survey was sent to radiation oncologists through e-mail or a WhatsApp message, where feasible, with a request letter containing the link to the survey questionnaire.

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  • The population structure and evolution of basidiomycetes, such as rust fungi, are shaped by complex reproductive strategies that include both asexual and sexual reproduction, which enhance their adaptability.
  • Puccinia coronata f. sp. avenae (Pca), a significant oat pathogen, exhibits varied contributions from sexual reproduction, clonality, and genetic exchange to its evolution, leading to challenges in managing host resistance.
  • Recent genome sequencing of Pca isolates from the USA, Australia, Taiwan, and South Africa revealed genetic recombination and somatic hybridization, indicating increased genetic diversity and potential intercontinental movement of strains, highlighting the need for global pathogen monitoring.
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Heart failure (HF) is a complex syndrome and a leading cause of mortality worldwide. While current medical treatment is based on known pathophysiology and is effective for many patients, the underlying cellular mechanisms are poorly understood. Energy deficiency is a characteristic of HF, marked by complex alterations in metabolism.

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Study Objective: The primary objective of our study was to compare the effectiveness of oral cephalosporins versus fluroquinolones and trimethoprim/sulfamethoxazole (TMP-SMX) for the treatment of pyelonephritis in patients discharged home from the emergency department (ED).

Methods: This was a multicenter, retrospective, observational cohort study of 11 geographically diverse US EDs. Patients aged ≥18 years diagnosed with pyelonephritis and discharged home from the ED between January 1, 2021 and October 31, 2023 were included.

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  • The study aimed to compare manual and automated methods for detecting REM sleep without atonia (RSWA) in patients with REM sleep behavior disorder (RBD) and a control group.
  • Researchers evaluated the accuracy of automated RSWA detection through in-laboratory and in-home recordings, finding high agreement with expert scoring and good reliability of results across multiple nights.
  • Results showed that automated detection provided a strong ability to differentiate between RBD patients and control subjects, suggesting it could be a useful tool for diagnosing RBD.
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Conformational control of drug candidates to engineer improved potency and ADME properties is an ongoing area of research. Macrocyclic rings tend to offer a greater degree of rigidity than non-cyclised small molecules, and, as a result they are perfect platforms to instil conformational controls. In this study, the difluoroalkoxyphenyl moiety is examined as a tool to alter the conformation of macrocycles.

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  • - The study explores how axonal growth can be influenced by both the physical environment, such as magnetic fields and materials, and the genetic mechanisms involved, using a new ferromagnetic composite material called glass-coated magnetic microwire.
  • - Researchers cultured rat dorsal root ganglia (DRG) under different conditions to analyze neurite outgrowth, discovering that combining magnetic stimulation with the microwire significantly increased both total neurite growth and directed growth compared to control conditions.
  • - RNA sequencing showed that the combination of the magnetic field and microwire reduced the expression of certain immune-response-related genes, hinting at how physical stimulation could guide axon growth and improve our understanding of tissue interactions.
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  • Heart rate variability (HRV) has potential as a tool for assessing the severity of hemorrhagic shock (HS) by comparing it with traditional methods of measuring hemodynamic and metabolic parameters.
  • The study involved male Sprague-Dawley rats subjected to varying degrees of HS, revealing that HRV changes, particularly in low-frequency power and respiratory sinus arrhythmia, correlate with blood pressure and tissue perfusion.
  • Despite observed HRV alterations being linked to hemodynamic factors, they didn’t show a direct connection with inflammatory responses in the animals.
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Objective: Short-term treatment efficacy of systemic dexamethasone (DEX) in preterm infants with bronchopulmonary dysplasia (BPD) is highly variable. Our objective was to assess if salivary cortisol may serve as a reliable biomarker of steroid response.

Study Design: Multi-site prospective observational cohort study.

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Polycystic ovary syndrome (PCOS) is a ubiquitous reproductive condition with triggering hallmarks such as glucose intolerance, hyperandrogenism, and dyslipidemia. Despite the existence of various PCOS animal models, an ideal model which could encompass all PCOS-specific phenotype is of dire need. Dehydroepiandrosterone (DHEA) induced PCOS rats are frequently employed; though, determining the superior model among pubertal and prepubertal rats, incorporation of high fat diet (HFD), and their sustainability remains uncertain.

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