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61,005 resultsShowing papers similar to Letter to the editor regarding “Identification and characterization of microplastics in human nasal samples”
ClearResponse to the editor regarding “Identification and characterization of microplastics in human nasal samples”
This is a response to the editor addressing concerns raised about a previously published paper on identification and characterization of microplastics, clarifying methodological choices and data interpretation. The response defends the original paper's conclusions against technical criticisms.
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.
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.
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.
In Reference to Role of Microplastics in Chronic Rhinosinusitis Without Nasal Polyps
This commentary responds to a study on the role of microplastics in chronic rhinosinusitis without nasal polyps, offering a critical appraisal and additional perspective on the findings and their implications for sinonasal disease research.
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.
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.
Personalized Nasal Protective Devices: Importance and Perspectives
Not relevant to microplastics — this paper reviews personalized nasal filter technology designed to protect individuals from inhaled environmental pollutants, allergens, and pathogens, with no specific focus on microplastics.
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.
Assessment of microplastic exposure in nasal lavage fluid and the influence of face masks
This study measured microplastics in nasal fluid from college students and found that wearing surgical masks actually increased microplastic exposure compared to no mask or cotton masks. Surgical masks released polycarbonate particles, and longer wear times led to higher microplastic levels. The findings suggest that while masks protect against airborne pathogens, they may be an overlooked source of microplastic inhalation.
Effect of Microplastic Inhalation on Allergic and Nonallergic Rhinitis
Researchers analyzed nasal lavage samples from rhinitis patients and healthy controls, finding significantly higher microplastic concentrations in both allergic and nonallergic rhinitis groups compared to controls. Younger participants and those with more severe symptoms tended to have higher microplastic levels in their nasal passages. The study suggests that inhaled microplastics may play a role in nasal inflammation, though more research is needed to establish a direct cause-and-effect relationship.
Identification and characterization of microplastics in nasal irrigation fluids: A preliminary study
This preliminary study found microplastics — primarily polypropylene from the nozzle of the irrigation device itself — in nasal rinse fluids used for sinus irrigation. The discovery raises questions about whether routine nasal irrigation could be inadvertently delivering plastic particles directly into the nasal passages and potentially deeper into the respiratory tract. The authors call for further research to understand the health significance of this previously unrecognized exposure route.
Microplastics: Omnipresent and an ongoing challenge for medical science
This commentary reviews evidence that micro- and nanoplastics are found in human body fluids and tissues and calls for greater engagement from medical science to assess potential health risks and develop diagnostic approaches.
Airborne micro- and nanoplastics: hidden vectors for human infection?
This commentary synthesizes evidence on whether airborne micro- and nanoplastics could serve as carriers for respiratory viruses. Researchers noted that the high abundance of plastic particles in air, combined with their surface properties that may enhance viral persistence, makes this a plausible transmission pathway. However, the authors emphasize that significant uncertainties remain and call for targeted research to determine whether plastic particles meaningfully contribute to airborne infection.
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.
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.
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 Bronchoalveolar Lavage Fluid: Preliminary Evidence of Respiratory Exposure to Environmental Contaminants
Researchers analyzed bronchoalveolar lavage fluid from eight adult patients undergoing diagnostic bronchoscopy and detected microplastics in the samples using microscopy, providing preliminary direct evidence that airborne microplastics deposit in the human respiratory tract.
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.
An emerging class of air pollutants: Potential effects of microplastics to respiratory human health?
This review explores the emerging concern that airborne microplastics can be inhaled by humans, potentially causing adverse effects on the respiratory system. Researchers compiled available data on the concentration, size, shape, and chemical composition of microplastic particles found in urban air. The findings suggest that airborne plastic debris represents a largely understudied class of air pollutant with potential implications for human health.
Nanoplastics in the Human Respiratory System
This research paper reports on the detection and characterization of nanoplastics in the human respiratory system, published in a leading pulmonary medicine journal. The study adds to growing evidence that extremely small plastic particles are present in human lungs. The findings underscore the importance of understanding inhalation as a key route of human exposure to plastic pollution.
Preliminary 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.
Measurement of Microplastic Release After the Use of Polypropylene Nasal Irrigation Bottles
Researchers detected microplastics in nasal irrigation fluids from polypropylene irrigation bottles after simulated use, with significantly higher microplastic counts in fluids from bottles representing 3 months of use compared to controls. The findings indicate that repeated mechanical stress on polypropylene nasal irrigation bottles releases microplastics directly into the nasal cavity during use.
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.