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20 resultsShowing papers similar to Effect of Microplastic Inhalation on Allergic and Nonallergic Rhinitis
ClearPreliminary Study of Microplastic in Allergic Rhinitis
Researchers compared microplastic concentrations in the nasal cavities of patients with allergic rhinitis versus healthy individuals. They found significantly higher levels of microplastics in the noses of people with the allergic condition. This preliminary finding suggests a potential connection between microplastic exposure in the nasal passages and allergic airway conditions, though more research is needed to understand the relationship.
Detection of microplastics in patients with allergic rhinitis
In a study of 66 patients, researchers found significantly more microplastic particles in nasal wash samples from people with allergic rhinitis compared to healthy volunteers. The microplastics found were mostly fibers and fragments small enough to deposit in nasal passages during normal breathing. This is among the first studies to link airborne microplastic exposure in the nose to an allergic condition, suggesting inhaled microplastics may contribute to nasal inflammation.
Evaluation of nasal microplastic densities in patients with acute and chronic rhinitis
Researchers compared microplastic concentrations in the nasal passages of patients with acute versus chronic rhinitis. They found higher microplastic densities in patients with acute inflammation, suggesting that these particles may play a role in triggering or worsening nasal flare-ups. The findings point to a need for further research into how inhaled microplastics could affect upper respiratory health over time.
Role of Microplastics in Chronic Rhinosinusitis Without Nasal Polyps
This clinical study investigated the potential role of microplastics in chronic rhinosinusitis without nasal polyps, examining whether microplastic exposure may contribute to persistent nasal inflammation.
Detection of microplastics in human nasal mucosa
Microplastic particles were detected for the first time in human nasal mucosa samples, with polymer types and concentrations quantified, providing direct evidence that the upper respiratory tract is a site of microplastic deposition from inhaled air.
Microplastic exposure in the lungs of young children and its associations with allergic rhinitis: A cross-sectional study in China
Researchers measured microplastics in lung fluid collected from 207 children in China and found that higher concentrations of certain plastics, particularly polyamide 66, were associated with increased rates of allergic rhinitis. The association was strongest in children aged six and under. The study suggests that microplastic exposure in young lungs may be linked to a higher risk of allergic respiratory conditions in early childhood.
Nasal lavage technique reveals regular inhalation exposure of microplastics, not associated from face mask use
Researchers used nasal lavage, a technique that rinses the nasal cavity, to measure microplastics that people inhale during normal daily activities. They found an average of about 28 microplastic particles per sample across all participants, with eight different polymer types detected. Notably, the study found no significant difference in microplastic levels between different types of face masks, suggesting that everyday environmental exposure is the primary source of inhaled microplastics rather than mask materials.
Inflammatory Effects of Microplastics and Nanoplastics on Nasal Airway Epithelial Cells
Researchers found that polystyrene micro- and nanoplastics cause inflammatory cytokine responses in nasal epithelial cells even over short exposure periods. The study also observed ciliary blunting and transcriptional evidence of significant inflammation and stress responses, suggesting that the nasal airway is vulnerable to plastic particle exposure.
The Effects of Microplastics and Nanoplastics in the Nasal Airway and Upper Respiratory Tract
This review examines the effects of airborne microplastics on the upper respiratory tract and nasal region, an area largely overlooked despite being the initial point of contact with inhaled particles. The literature collectively indicates that microplastics may cause changes in cell morphology, cytotoxicity, and inflammatory effects in nasal tissues, with potential impacts on patient quality of life.
Microplastics in Allergic Rhinitis: Multimechanistic Drivers of Barrier Disruption and Immune Dysregulation
This review examines the multimechanistic pathways by which microplastics drive barrier disruption and immune dysregulation in allergic rhinitis, considering how physical and chemical properties of microplastic particles interact with nasal epithelial and immune function. The paper synthesizes emerging evidence on microplastics as a novel contributor to upper airway allergic disease.
Effects of microplastics on allergic airways and potential pathogenesis: a review
This review examines how microplastics, which can enter the body through breathing, eating, and skin contact, may affect allergic airway conditions. Researchers found evidence that microplastics can damage airway lining cells, disrupt the protective barrier of the respiratory tract, and trigger heightened airway reactivity. The study suggests that chronic microplastic exposure may worsen allergic airway inflammation, though more research is needed to fully understand the mechanisms involved.
Micro‐ and Nanoplastic Toxicity in Upper Respiratory Tract: A Scoping Review
This scoping review found that both exposed and unexposed humans have microplastics and nanoplastics detectable in nasal tissue and fluids, with mask wearing and old nasal lavage devices contributing to deposition, and experimental studies suggesting inflammatory tissue changes from upper respiratory tract NMP accumulation.
Identification and characterization of microplastics in human nasal samples
Researchers collected samples from human nasal cavities and confirmed the presence of microplastics, with polyethylene, polyester, acrylic, and polypropylene being the most common types. This finding adds the nose to the growing list of human body sites where microplastics have been detected, raising questions about potential health effects on the respiratory system.
Detrimental effects of microplastic exposure on normal and asthmatic pulmonary physiology
Researchers exposed both healthy and asthmatic mice to airborne microplastics and found significant lung inflammation, immune activation, and increased mucus production in both groups. Microplastic particles were taken up by immune cells called macrophages, and gene analysis revealed changes in immune response, cellular stress, and cell death pathways. The study suggests that inhaling microplastics may worsen respiratory health in both normal and vulnerable populations.
Airborne microplastics: Consequences to human health?
Researchers reviewed existing evidence on airborne microplastics and their potential effects on human respiratory health. Studies of workers exposed to plastic fibers and particles have documented airway inflammation and breathing difficulties, suggesting that susceptible individuals may face health risks even from environmental concentrations. The paper calls for greater awareness and future research into the health consequences of inhaling microplastic particles.
Correspondence Regarding “Inflammatory Effects of Microplastics and Nanoplastics on Nasal Airway Epithelial Cells”
This correspondence comments on a study showing that microplastics and nanoplastics trigger inflammation in nasal airway cells, with effects varying by particle size and surface charge. The author highlights the study's value for understanding how inhaled plastic particles may harm the respiratory system.
Microplastics in different nasal irrigation options
Researchers analyzed 150 samples of nasal irrigation products commonly used for sinusitis and rhinitis treatment to assess their microplastic content. They found an average of 6.49 microplastics per product, with nasal wash bottles containing the highest levels (up to 92 particles per product) while syringes had the lowest. The study highlights that nasal irrigation methods can be a direct route of microplastic exposure to the human respiratory tract.
Impact of Microplastic Exposure on Airway Inflammation in an Acute Asthma Murine Model
Mouse experiments found that microplastic exposure worsened inflammatory responses in healthy lungs but did not further aggravate airway inflammation in mice with pre-existing asthma, suggesting the lung's response to microplastics depends on baseline immune state.
Progress in understanding the impact of microplastics on respiratory allergic diseases
This review synthesized evidence on how airborne microplastics may affect respiratory allergic diseases such as allergic rhinitis and asthma. Researchers found that inhaled microplastics can compromise airway barriers by disrupting tight junctions, impairing mucus clearance, and weakening mucosal defenses. The study suggests that microplastic characteristics like polymer type, particle size, and surface chemistry influence how they initiate or worsen respiratory allergic responses.
Exposure to microplastics in the upper respiratory tract of indoor and outdoor workers
Researchers measured microplastic presence in the upper respiratory tracts of indoor office workers and outdoor couriers using nasal lavage and sputum samples. The study found microplastics in both groups, with office workers showing significantly higher nasal contamination than couriers, and the dominant plastic types differing between indoor and outdoor workers.