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This study explores the green synthesis of silver nanoparticles (AgNPs) using a methanolic extract of fermented pollen from Tetragonisca angustula, a species of stingless bees. The AgNPs exhibit spherical morphology, low charge values, and suspension stability, with their unique composition attributed to elements from the pollen extract. Antioxidant assays show comparable activity between the pollen extract and AgNPs, emphasizing the retention of antioxidant effects. The synthesized AgNPs demonstrate antimicrobial activity against multidrug-resistant bacteria, highlighting their potential in combating bacterial resistance. The AgNPs exhibit no toxic effects on Drosophila melanogaster and even enhance the hatching rate of eggs. The study underscores the innovative use of stingless bee pollen extract in green synthesis, offering insights into the varied applications of AgNPs in biomedicine.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11130103 | PMC |
http://dx.doi.org/10.1186/s11671-024-04038-0 | DOI Listing |
Allergol Immunopathol (Madr)
September 2025
Department of Clinic of Chest Diseases, Samsun Education and Research Hospital, Samsun, Turkey.
Background: Allergic rhinitis and allergic asthma are respiratory tract diseases predominantly triggered by allergens such as pollens, house dust mite, mold etc. The prevalence of respiratory allergens varies according to geographic location. Ragweed (), a prevalent weed particularly in South America and Europe, is being investigated for its sensitization frequency in the Black Sea region of our country.
View Article and Find Full Text PDFJ Food Sci Technol
October 2025
Department of Nutrition and Food Hygiene, School of Medicine, Hamadan University of Medical Sciences, P.O.Box 6517838736, Hamadan, Iran.
Dairy products such as yogurt are nutritious food sources. Propolis is formed by mixing tree secretions with pollen and bee enzymes and has some functional properties. Basil seed is a rich source of hydrocolloids with outstanding functional properties.
View Article and Find Full Text PDFBMJ Open
August 2025
Child Health, University of Aberdeen, Aberdeen, UK.
Objectives: To update our previous systematic review of the literature and describe associations published since 2014 between environmental exposure and asthma control and exacerbations in children.
Design: Systematic literature review following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines.
Data Sources: The search strategy from our earlier review was used to search the following databases: MEDLINE/OVID (1946-Present), Embase/OVID SP (1980-Present), CINAHL, Cochrane Centre Trials Register (CCTR), Cochrane Database of Systematic Reviews and Database of Abstracts of Reviews of Effects (DARE).
Background: Asthma is a chronic respiratory disease comprising different pheno- and endotypes. Diagnostic tools for the identification of allergic versus non-allergic asthma are needed for new precision medicine-based treatments.
Objective: To determine IgE sensitization profiles to multiple micro-arrayed allergen molecules in adult patients with asthma in the Austrian LEAD (Lung, hEart, sociAl, boDy) cohort; to compare IgE- and non-IgE sensitized patients with asthma; and to define possible allergen-specific immunotherapy concepts for sensitized patients.
Food Chem
August 2025
Balparmak R&D Center, Altıparmak Food Industry and Trade Inc., Istanbul, Türkiye.
Pyrrolizidine alkaloids (PAs) and their N-oxides (PANOs) which might be incorporated into the bee products may pose health risks for consumers. We aimed to analyze PAs of honeys and bee pollens by quantifying 28 PAs/PANOs using a novel online SPE-UHPLC-MS/MS methodology. Dilute & shoot preparation was optimized for honeys, whereas pollen PAs were extracted using ACN/McIlvaine-EDTA buffer.
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