Autotaxin (ATX), encoded by ENPP2, is a clinical target in pancreatic ductal adenocarcinoma (PDAC). ATX catalyzes the production of lysophosphatidic acid (LPA), an important regulator within the tumor microenvironment (TME), yet the pro-tumorigenic action of the ATX/LPA axis in PDAC remains unclear. Here, by interrogating patient samples and cell line datasets, we show that the PDAC TME, rather than cancer cells, is responsible for the majority of ENPP2 expression, and highlight a key role for cancer associated fibroblast (CAF)-derived ATX in autocrine and paracrine pro-tumorigenic signaling.
View Article and Find Full Text PDFCan J Surg
November 2024
The Anostostomatidae of Aotearoa New Zealand are well-characterized at the genus and species level, but the higher-level systematics of the family as a whole remain poorly resolved. We tested the hypothesis that the New Zealand anaostostomatid fauna consists of a single monophyletic group consistent with a single common ancestor. For phylogenetic analysis, we sampled the genera in Aotearoa New Zealand as well as representatives of the family from Australia and New Caledonia.
View Article and Find Full Text PDFProg Community Health Partnersh
September 2024
Underserved communities have been disproportionately affected by the COVID-19 pandemic. The Project Promoting Engagement and COVID-19 Testing for Health (PEACH) study was designed to understand the attitudes, beliefs, and infrastructure associated with COVID-19 risk, testing, and prevention behaviors in people living with, caring for, or at risk for type 2 diabetes. The purpose of this joint community-academic partnered manuscript is to share lessons learned for maintaining community partnerships through the challenging times of a pandemic.
View Article and Find Full Text PDFTool wear is a key issue for the manufacturing performance of refill friction stir spot welding in high-volume manufacturing environments. As such, the aim of this study is to examine conditions in which tungsten carbide with a cobalt binder can succeed as a tool material in the spot welding of 2029 aluminum for a sustained lifetime. Critical factors are shown herein to include cleanliness and thermal management.
View Article and Find Full Text PDFWe present the case of a 62-year-old man with severe coronary artery disease who presented to the hospital in refractory ventricular fibrillation cardiac arrest. He showed signs of life despite prolonged resuscitation. We thus decided to initiate extracorporeal cardiopulmonary resuscitation (ECPR).
View Article and Find Full Text PDFBackground: With increasing prevalence of unruptured intracranial aneurysms (UIAs), there is a need to provide appropriate management. Several studies have suggested that minorities in the United States have limited access to non-invasive imaging leading to increased presentation of aneurysmal subarachnoid hemorrhages (aSAHs). Given our medical institution's commitment to ensuring racial equality within our health care system, we chose to analyze our practice to assess the utilization of care provided by our neuroendovascular team.
View Article and Find Full Text PDFA myasthenic crisis denotes a severe exacerbation of myasthenia gravis, leading a patient to enter a life-threatening state due to progressing muscle weakness that ultimately results in respiratory failure. A crisis can require intubation, mechanical ventilation, and additional critical care to prevent further decompensation and potentially death. Numerous well-documented precipitating factors exist, such as infections, surgery, stress, and various medications.
View Article and Find Full Text PDFPotential climate tipping points pose a growing risk for societies, and policy is calling for improved anticipation of them. Satellite remote sensing can play a unique role in identifying and anticipating tipping phenomena across scales. Where satellite records are too short for temporal early warning of tipping points, complementary spatial indicators can leverage the exceptional spatial-temporal coverage of remotely sensed data to detect changing resilience of vulnerable systems.
View Article and Find Full Text PDFBackground/aims: Individuals with neurofibromatosis 1 may experience changes in their appearance due to physical manifestations of the disorders and/or treatment sequelae. Appearance concerns related to these physical changes can lead to psychological distress and poorer quality of life. While many neurofibromatosis 1 clinical trials focus on assessing changes in tumor volume, evaluating patients' perspectives on corresponding changes in symptoms such as physical appearance can be key secondary outcomes.
View Article and Find Full Text PDFSelective ophthalmic artery infusion of chemotherapy (SOAIC) has emerged as the standard of care for retinoblastoma (RB). Intranasal oxymetazoline (INO), Afrin, is often intraoperatively administered adjunctively to optimize flow to the orbit. There has been one report to date that suggests the adjunctive use of INO has led to systemic side effects.
View Article and Find Full Text PDFNat Ecol Evol
November 2023
Concerns have been raised that the resilience of vegetated ecosystems may be negatively impacted by ongoing anthropogenic climate and land-use change at the global scale. Several recent studies present global vegetation resilience trends based on satellite data using diverse methodological set-ups. Here, upon a systematic comparison of data sets, spatial and temporal pre-processing, and resilience estimation methods, we propose a methodology that avoids different biases present in previous results.
View Article and Find Full Text PDFObjective: The Bard LifeStent self-expanding stent is approved for the treatment of occlusive disease involving the superficial femoral artery and proximal popliteal artery. We conducted a post-market trial of treatment of the popliteal artery above and below the knee (P1, P2, and P3 segments) within the Society for Vascular Surgery Vascular Quality Initiative (VQI) Peripheral Vascular Intervention registry.
Methods: A single-arm, prospective trial was conducted at 29 VQI sites in the United States, enrolling 74 patients from November 2016 to May 2019.
Gemcitabine (Gem) has been a standard first-line drug for pancreatic cancer (PCa) treatment; however, Gem's rapid metabolism and systemic instability (short half-life) limit its clinical outcome. The objective of this study was to modify Gem into a more stable form called 4-(N)-stearoyl-gemcitabine (4NSG) and evaluate its therapeutic efficacy in patient-derived xenograft (PDX) models from PCa of Black and White patients.Methods 4NSG was synthesized and characterized using nuclear magnetic resonance (NMR), elemental analysis, and high-performance liquid chromatography (HPLC).
View Article and Find Full Text PDFPeople with social anxiety disorder (SAD) use different types of safety behaviors that have been classified as avoidance vs. impression management. The current study investigated differences in safety behavior subtype use in 132 individuals with principal diagnoses of social anxiety disorder (SAD, n = 69), major depressive disorder (MDD, n = 30), and nonpatient controls (n = 33) across two social contexts: an interpersonal relationship-building task (social affiliation) and a speech task (social performance).
View Article and Find Full Text PDFQuantifying the resilience of vegetated ecosystems is key to constraining both present-day and future global impacts of anthropogenic climate change. Here we apply both empirical and theoretical resilience metrics to remotely-sensed vegetation data in order to examine the role of water availability and variability in controlling vegetation resilience at the global scale. We find a concise global relationship where vegetation resilience is greater in regions with higher water availability.
View Article and Find Full Text PDF