The expression "nasal polyp" is correct and usable in written English.
You can use it when referring to a type of noncancerous growth in your nasal passage or sinuses. For example: "I recently had to undergo surgery to remove a nasal polyp."
Conclusion: High level of MDA in nasal polyp tissue that represents FR increase supports the existence of cell injury in nasal polyp tissue.
Objective: To investigate whether the free radical injury in nasal polyp tissue exists or not.
Methods: Nasal polyp tissue was evaluated from 28 consecutive individuals undergoing elective polypectomy in whom neutrophils were not present on pathologic examination.
This study was designed to investigate the possibility that mtDNA mutations might arise in inflammatory or chronically damaged nasal polyp tissue from 23 patients.
The level of reactive oxygen species (ROS) was significantly higher in the nasal polyp tissues compared to those from the corresponding samples.
To evaluate expression of cyclooxygenase (COX -2 and 5-lipoxygenase (5-LO) assoCOX -2 with interleukin (IL)-4 promoter polymorphism -590 in nandl polyp tissues.
The average mtDNA copy number was about three times higher in nasal polyp tissue than in the corresponding peripheral blood cells and adjacent non-polyp tissues.
Treatment to prevent the recurrence of choanal polyps involves complete removal of the base in the maxillary sinus mucosa and nasal polyp surgery using an endoscopic approach [4, 5].
Nasal polyp tissue-specific length heteroplasmic mutations were also detected in nucleotide position (np) 303 315 homopolymeric poly C track (39%), np 514 523 CA repeats (17%) and np 16184 16193 poly C track (30%).
High level of ROS in nasal polyp tissue may contribute to development of mtDNA mutations, which may play a crucial role in the vicious cycle of pathophysiology of nasal polyps.
Thirteen patients (57%) displayed nasal polyp tissue-specific mtDNA mutations in the hypervariable segment of the control region and cytochrome b gene, which were not found in the corresponding blood cells and/or adjacent normal tissue.
