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Appraisal of the evidence linking hereditary α-tryptasemia with mast cell disorders, hypermobility and dysautonomia.
Allergy Asthma Proc
January 2025
From the Division of Allergy and Immunology, Department of Medicine, University of California San Diego, La Jolla, California and.
Since its first description more than a decade ago, our understanding of the clinical impact of hereditary alpha-tryptasemia has continued to evolve. First considered to be a genetic disorder with a subset of patients having a syndromic presentation composed of connective tissue abnormalities, symptoms of autonomic dysfunction, and findings of mast cell activation, we now know that hereditary alpha-tryptasemia is a common genetic trait and modifier of mast cell-mediated reactions. More recent studies have shown some previously held associations with congenital hypermobility and postural orthostatic tachycardia syndrome (POTS) to be lacking, and illuminated previously unappreciated associations with clonal and nonclonal mast cell disorders.
View Article and Find Full Text PDFAtopic dermatitis (AD), a common chronic inflammatory skin disorder is characterized by a complex pathology with skin-barrier abnormalities, immune dysregulation, and microbial dysbiosis. Patients' quality of life is often negatively impacted by persistent pruritus, sleep disturbance, and recurrent skin infections. In addition, patients may have comorbid atopic as well as nonatopic diseases.
View Article and Find Full Text PDFStudies of methylated CpG ODN from subsp. in a murine model: Implications for treatment of human allergic disease.
Allergy Asthma Proc
January 2025
From the Department of Microbiology-Immunology, Georgetown University Medical Center, Washington, D.C.
Allergen immunotherapy (AIT) is currently the most effective immunologic form of treatment for patients with atopic allergic diseases commonly used by allergist/immunologists to reduce allergic symptoms by gradually desensitizing the immune system to specific allergens. Currently, the primary mechanism of AIT emphasizes the crucial role of immune regulation, which involves a shift from a T-helper type 2 (Th2) cell response, which promotes allergy, to a T-regulatory (Treg) cell population, which inhibits the allergic inflammatory response through the production of immunosuppressive cytokines interleukin 10 and transforming growth factor β, which play pivotal roles in suppressing the allergic reaction. In a series of previous in vitro and in vivo experiments, we have demonstrated the capacity of synthetic methylated cytosine-phosphate-guanine (CpG) oligodeoxynucleotide (ODN) moieties as well as methylated genomic DNA ODN motifs from Bifidobacterium longum subspecies infantis to activate Treg cell differentiation in contrast to the unmethylated ODN moiety, which promotes proinflammatory responses driven by Th17-mediated responses.
View Article and Find Full Text PDFThe system can change: a feasibility study of a doula-clinician collaborative at a large tertiary hospital in the United States.
Implement Sci Commun
December 2024
Beth Israel Deaconess Medical Center, 330 Brookline Ave, Boston, MA, 02115, USA.
Background: Doulas, non-clinical professionals who provide support throughout the perinatal period, can positively impact patient experiences and clinical outcomes during birth. Doulas often support hospital-based births without being employed by the hospital system, resulting in varied relationships with hospitals and clinicians. Systems-level changes are needed to maximize collaboration between hospitals and doulas to ensure facilitation of, and not barriers to, doula support.
View Article and Find Full Text PDFAssessing the interactions between learning enjoyment, motivation, burnout, and grit in EFL students: a mixed-methods approach.
BMC Psychol
December 2024
School of Foreign Languages, Henan University of Animal Husbandry and Economy, Zhengzhou, Henan, 450000, China.
This study examines the relationships among Foreign Language Learning Enjoyment (FLLE), L2 grit, academic burnout, and motivated behavior in English as a Foreign Language (EFL) learners, using a mixed-methods approach. A total of 534 Chinese undergraduate EFL learners participated in the quantitative phase, which used a cross-sectional survey, followed by narrative inquiry with 15 participants in the qualitative phase. Structural Equation Modeling (SEM) analysis revealed that FLLE positively influenced motivated behavior while reducing academic burnout.
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