Protein tyrosine phosphatase receptor zeta 1 (PTPRZ1) is a transmembrane tyrosine phosphatase (TP) that serves as a receptor for pleiotrophin (PTN) and vascular endothelial growth factor A 165 (VEGFA) to regulate endothelial cell migration. In the present work, we identify a PTN peptide fragment (PTN) that inhibits the interaction of PTN and VEGFA with PTPRZ1 but not VEGF receptor 2. This peptide abolishes the stimulatory effect of PTN and VEGFA on endothelial cell migration, tube formation on Matrigel, and Akt activation in vitro.
View Article and Find Full Text PDFJ Expo Sci Environ Epidemiol
March 2024
Chlormequat chloride is a plant growth regulator whose use on grain crops is on the rise in North America. Toxicological studies suggest that exposure to chlormequat can reduce fertility and harm the developing fetus at doses lower than those used by regulatory agencies to set allowable daily intake levels. Here we report, the presence of chlormequat in urine samples collected from people in the U.
View Article and Find Full Text PDFObjective: Chronic orofacial pain is prevalent and debilitating. Psychological and social factors place a heavy burden on this population but are often overlooked. Here, we offer the first comprehensive qualitative conceptualization of the challenges of living with chronic orofacial pain through a biopsychosocial perspective to inform multifaceted care for this population.
View Article and Find Full Text PDFMindfulness can help improve chronic pain outcomes. This cross-sectional study is the first to test associations between specific mindfulness facets and pain-related outcomes (pain intensity, pain-related disability, anxiety, and depression) in individuals with chronic orofacial pain ( = 303). "Nonjudging" was associated with positive pain-related outcomes.
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