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| http://dx.doi.org/10.3389/fpsyg.2014.00873 | DOI Listing |
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Injectable Chitosan Hydrogel Particles as Nasal Packing Materials After Endoscopic Sinus Surgery for Treatment of Chronic Sinusitis.
Gels
January 2025
Department of Chemical Engineering, Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan.
After endoscopic sinus surgery (ESS), nasal packing is often used to stop bleeding and promote wound healing. Because maintaining a moist environment is important to enhance wound healing, hydrogel-based wound dressings are effective to promote wound healing. Chitosan is used in the medical field because of its high hemostatic and wound healing properties.
View Article and Find Full Text PDFNeurochemical Alterations Linked to Persistent COVID-19-Induced Anosmia: Probing Into Orbitofrontal Cortex by Magnetic Resonance Spectroscopy.
Acad Radiol
January 2025
Department of Otolaryngology and Head and Neck Surgery, School of Medicine, Otorhinolaryngology Research Center, Guilan University of Medical Sciences, Rasht, Iran (M.H.D., S.N.). Electronic address:
Background: While many COVID-19-induced anosmia patients recover their sense of smell within a few months, a substantial number of them continue to experience olfactory impairment. In our primary study, the metabolic patterns in orbitofrontal cortex (OFC) were observed to exhibit more alterations than other regions. Hence, this study specifically probes into alterations within OFC region in subjects with persistent COVID-19-induced anosmia.
View Article and Find Full Text PDFEffect of high-pressure carbon dioxide combined with modified atmosphere packaging on the quality of fresh-cut squash during storage.
Food Chem
January 2025
Department of Industrial Engineering, University of Padova, Via Marzolo 9, 35131 Padova, Italy. Electronic address:
The study evaluated the application of a novel high-pressure microbial inactivation method combining dense carbon dioxide with modified atmosphere packaging on organic fresh-cut squash (Cucurbita moschata). Approximately 4 g or 32 g of squash was packed in plastic pouches filled with CO to test two different gas-to-product ratios and treated with the high-pressure method at previously optimized process conditions (45 °C, 6.0 MPa and 40 min).
View Article and Find Full Text PDFDesign Principles From Natural Olfaction for Electronic Noses.
Adv Sci (Weinh)
January 2025
Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Boston, MA, 02134, USA.
Natural olfactory systems possess remarkable sensitivity and precision beyond what is currently achievable by engineered gas sensors. Unlike their artificial counterparts, noses are capable of distinguishing scents associated with mixtures of volatile molecules in complex, typically fluctuating environments and can adapt to changes. This perspective examines the multifaceted biological principles that provide olfactory systems their discriminatory prowess, and how these ideas can be ported to the design of electronic noses for substantial improvements in performance across metrics such as sensitivity and ability to speciate chemical mixtures.
View Article and Find Full Text PDFCharacterization of the ligand-binding properties of odorant-binding protein 38 from when interacting with soybean volatiles.
Front Physiol
January 2025
Plant Protection Institute, Hebei Academy of Agriculture and Forestry Sciences, Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China, Ministry of Agriculture and Rural Affairs, IPM Innovation Center of Hebei Province, International Science and Technology Joint Research Center on IPM of Hebei Province, Baoding, China.
Background: (Fabricius) (Hemiptera: Alydidae) is a major soybean pest throughout East Asia that relies on its advanced olfactory system for the perception of plant-derived volatile compounds and aggregation pheromones for conspecific and host plant localization. Odorant binding proteins (OBPs) facilitate the transport of odorant compounds across the sensillum lymph within the insect olfactory system, enabling their interaction with odorant receptors (ORs).
Methods: Real-time quantitative PCR (qRT-PCR) analyses, fluorescence-based competitive binding assays, and molecular docking analyses were applied to assess the expression and ligand-binding properties of OBP38 from .
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