Respiratory syncytial virus can lead to serious lower respiratory infection (LRI), particularly in children and the elderly. LRI can cause longer infections, lingering respiratory problems, and higher incidence of hospitalization. In this paper, we use a simplified ordinary differential equation model of viral dynamics to study the role of transport mechanisms in the occurrence of LRI. Our model uses two compartments to simulate the upper respiratory tract and the lower respiratory tract (LRT) and assumes two distinct types of viral transfer between the two compartments: diffusion and advection. We find that a range of diffusion and advection values lead to long-lasting infections in the LRT, elucidating a possible mechanism for the severe LRI infections observed in humans.
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http://dx.doi.org/10.1007/s00285-019-01364-1 | DOI Listing |
J Anesth
January 2025
Department of Anesthesiology, the First Affiliated Hospital, Sun Yat-sen University, No.58, Zhongshan 2Nd Road, Guangzhou, 510080, China.
Purpose: Perioperative respiratory adverse event (PRAE) is one of the most common complications in pediatric anesthesia. We aimed to evaluate the efficacy of perioperative pharmacological interventions to prevent the development of PRAE in children undergoing noncardiac surgery.
Methods: PubMed, Embase, Cochrane Library and ClinicalTrials.
Inflammation
January 2025
Department of Geriatrics, Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, 410008, China.
Chronic obstructive pulmonary disease (COPD) is a prevalent chronic inflammatory airway disease with high incidence and significant disease burden. R-loops, functional chromatin structure formed during transcription, are closely associated with inflammation due to its aberrant formation. However, the role of R-loop regulators (RLRs) in COPD remains unclear.
View Article and Find Full Text PDFJ Infect Dis
January 2025
College of Mathematical Sciences, College of Science, Rochester Institute of Technology, Rochester, NY.
Introduction: We sought to explore the variability of antibody responses to multiple vaccines during early life in individual children, assess the trajectory of each child longitudinally, determine the associations of demographic variables and antibiotic exposures with vaccine-induced immunity, and link vaccine responsiveness to infection proneness.
Methods: In 357 prospectively-recruited children, age six through 36 months, antibody levels to 13 routine vaccine antigens were measured in sera at multiple time points and normalized to their respective protective thresholds to categorize children into four groups: very low, low, normal, and high vaccine responder. Demographic variables and frequency of antibiotic exposure data were collected.
Immunol Med
January 2025
Department of Diabetes, Endocrinology and Clinical Immunology, Hyogo Medical University School of Medicine, Hyogo, Japan.
Rituximab (RTX) has been reported to effectively maintain remission in anti-neutrophil cytoplasmic antibody-associated vasculitis (AAV). In this multicenter study involving 57 patients who achieved remission after 24 weeks, we evaluated the effectiveness of RTX in maintaining remission in patients with AAV. Patients were divided into three groups based on RTX administration: continuous, induction phase-only, and maintenance phase-only groups.
View Article and Find Full Text PDFJ Clin Med
December 2024
Division of Cardiovascular Medicine, Tufts Medical Center, Boston, MA 02111, USA.
: Heart failure is the leading cause of hospital admission and mortality. Racial disparities have been demonstrated in various cardiovascular disorders; however, the data for in-hospital outcomes, complications, and procedural rates are limited. : Utilizing the National Inpatient Sample (NIS) database, this retrospective cohort study included adult patients admitted with a principal diagnosis of heart failure.
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