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纤毛和粘液的清除功能是呼吸道的重要防御机制。病毒性上感期间,儿童鼻腔上皮超微结构检查发现纤毛可出现变异。这种变化易出现在病变早期,到恢复期(感染后2～10周)正常上皮重建,纤毛的结构又恢复正常。本研究组标本取自85个正常、无慢性及家族性呼吸道病变儿童的下鼻甲上皮。以正常儿童鼻甲上皮做对照。对出现上感症状的儿童进行病毒培养,并分别在发病后的3～5天、7～9天和15天,某些儿童在6～10周采集下甲标本。对病毒培养阳性的30个标本进行光镜和电镜检查。结果:正常鼻甲上皮标本光镜检查显示为一层排列有序的假复层柱状上皮。电镜显示纤毛具有9+2
The removal of cilia and mucus is an important defensive mechanism of the respiratory tract. During the viral sensation, ultrastructural examination of the nasal epithelium in children revealed variations in the cilia. This change prone to early lesions, to the recovery period (2 to 10 weeks after infection) normal epithelial reconstruction, cilia structure returned to normal. The study specimens from 85 normal, non-chronic and familial respiratory lesions in the inferior turbinate epithelium. Normal children with turmeric epithelial control. Children who developed symptoms of flu were virus-cultured, and some children underwent a hypothyroidism at 6 to 10 weeks, 3 to 5 days, 7 to 9 days, and 15 days, respectively. Thirty specimens positive for virus culture were examined by light and electron microscopy. Results: Normal turbinate epithelial specimens were examined by light microscopy as a sequence of pseudostratified columnar epithelium. Electron microscopy showed cilia with 9 + 2