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Intranasal iron administration induces iron deposition, immunoactivation, and cell-specific vulnerability in the olfactory bulb of C57BL/6 mice.
Zool Res
January 2025
School of Basic Medicine, Institute of Brain Science and Disease, Shandong Provincial Key Laboratory of Pathogenesis and Prevention of Brain Diseases, Qingdao University, Qingdao, Shandong, 266071, China. E-mail:
Iron is the most abundant transition metal in the brain and is essential for brain development and neuronal function; however, its abnormal accumulation is also implicated in various neurological disorders. The olfactory bulb (OB), an early target in neurodegenerative diseases, acts as a gateway for environmental toxins and contains diverse neuronal populations with distinct roles. This study explored the cell-specific vulnerability to iron in the OB using a mouse model of intranasal administration of ferric ammonium citrate (FAC).
View Article and Find Full Text PDFBiologic Treatments for Chronic Rhinosinusitis With Nasal Polyps (CRSwNP): A Comparative Review of Efficiency and Risks.
Cureus
January 2025
Department of Otolaryngology, Iuliu Hațieganu University of Medicine and Pharmacy, Cluj-Napoca, ROU.
Chronic rhinosinusitis with nasal polyps (CRSwNP) is a chronic inflammatory condition of the nasal passages and sinuses, often characterized by nasal congestion, loss of smell, facial pressure, and nasal discharge. Conventional treatments, such as corticosteroids and endoscopic sinus surgery (ESS), often provide only temporary relief, with frequent recurrence of symptoms. For patients with severe, refractory CRSwNP, biologic therapies have emerged as a promising treatment option.
View Article and Find Full Text PDFOlfactory impairment in Italian patients with chronic rhinosinusitis with nasal polyps: a patient-centered survey.
Front Allergy
January 2025
Unit of Otorhinolaryngology-Head and Neck Department, ASST Sette Laghi, Varese and UPLOAD (Upper and Lower Airways Diseases) Research Centre, University of Insubria, Varese, Italy.
Background: Chronic rhinosinusitis with nasal polyps (CRSwNP) is an inflammatory condition characterized by persistent nasal obstruction, discharge, facial pressure, and olfactory dysfunction. CRSwNP significantly impairs quality of life (QoL), with olfactory loss being a particularly distressing symptom that affects food enjoyment, personal safety, and social interactions.
Methods: This study investigated the experiences of Italian patients with CRSwNP.
Molecular evidence for the role of the ovipositor of the fall armyworm: Where to lay or not to lay?
Insect Sci
January 2025
Institute of Plant Protection, Guangdong Academy of Agricultural Sciences, Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of High Technology for Plant Protection, Guangzhou, China.
Oviposition behavior in insects has received considerable attention, but studies have mainly focused on the antennae, neglecting the role of the ovipositor. In this study, we investigated the functional characteristics of the ovipositor in oviposition site selection by the fall armyworm (FAW) Spodoptera frugiperda, a destructive invasive pest of maize and other cereals. In oviposition choice assays females exhibited significant repellency to isothiocyanate (ITC), volatiles specific to non-preferred cruciferous plants.
View Article and Find Full Text PDFIdentification of a critical interval for type 2 diabetes QTL on chromosome 4 in DDD-A mice.
Mamm Genome
January 2025
Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO), Tsukuba, Ibaraki, 305-0901, Japan.
Type 2 diabetes mellitus (T2D) in male KK-A and B6-A mice is typically associated with hyperinsulinemia, whereas male DDD-A mice exhibit a marked decrease in circulating insulin levels due to the loss of pancreatic islet β-cells. T2D in male DDD-A mice is linked to Nidd/DDD, a significant quantitative trait locus (QTL) mapped with a 95% confidence interval (CI) between 112.44 and 151.
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