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Visual cues of respiratory contagion: Their impact on neuroimmune activation and mucosal immune responses in humans.
Brain Behav Immun
January 2025
Department of Biology, Neuroendocrinology and Human Biology Unit, Institute for Animal Cell- and Systems Biology, Faculty of Mathematics, Informatics and Natural Sciences, Universität Hamburg, D-22085 Hamburg, Germany. Electronic address:
This study investigated the neural correlates of perceiving visual contagion cues characteristic of respiratory infections through functional magnetic resonance imaging (fMRI). Sixty-two participants (32f/ 30 m; ∼25 years on average) watched short videos depicting either contagious or non-contagious everyday situations, while their brain activation was continuously measured. We further measured the release of secretory immunoglobulin A (sIgA) in saliva to examine the first-line defensive response of the mucosal immune system.
View Article and Find Full Text PDFRandomized controlled trial on the efficacy of forest walking compared to urban walking in enhancing mucosal immunity.
Sci Rep
January 2025
Le Verseau Inc., Tokyo, 156-0051, Japan.
Scientific research on forest therapy's preventive medical and mental health effects has advanced, but the need for clear evidence for practical applications remains. We conducted an unblinded randomized controlled trial involving healthy men aged 40-70 to compare the physiological and psychological effects of forest and urban walking. Eighty-four participants were randomly assigned to either the forest or urban group, with 78 completing 90-min walks and analysis.
View Article and Find Full Text PDFMalnutrition and Its Influence on Gut sIgA-Microbiota Dynamics.
Biomedicines
January 2025
Department of Surgery, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania.
In the current era, malnutrition is seen as both undernutrition and overweight and obesity; both conditions are caused by nutrient deficiency or excess and improper use or imbalance in the intake of macro and micronutrients. Recent evidence suggests that malnutrition alters the intestinal microbiota, known as dysbiosis. Secretory immunoglobulin A (sIgA) plays an important role in maintaining and increasing beneficial intestinal microbiota populations and protecting against pathogenic species.
View Article and Find Full Text PDFOral administration of recombinant Lactococcus lactis co-expressing fusion VP1 protein of duck hepatitis a virus type 1 and 3 protects ducklings against infection.
Poult Sci
January 2025
Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Shandong Agricultural University, Taian 271017, China; Shandong Provincial Key Laboratory of Zoonoses, Shandong Taian 271017, China. Electronic address:
Duck viral hepatitis (DVH) is one of the most common diseases of waterfowl. Duck hepatitis A virus type 1 (DHAV-1) and type 3 (DHAV-3) have been on the rise seriously endangering the development of duck farming. In this study, we constructed a recombinant Lactococcus lactis (L.
View Article and Find Full Text PDFAssessment of Exercise-Induced Dehydration Status Based on Oral Mucosal Moisture in a Field Survey.
Dent J (Basel)
December 2024
Department of Sports Dentistry, School of Dentistry, Meikai University, Sakado 350-0283, Japan.
Conventional techniques for evaluating hydration status include the analysis of blood, urine, and body weight. Recently, advancements in dentistry have introduced capacitance sensor-based oral epithelial moisture meters as promising avenues for assessment. This study aimed to examine the correlation between oral mucosal moisture content, as determined using a capacitance sensor, and exercise-induced dehydration.
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