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  • Title: Evidence of the local immune status in the human larynx.
    Author: Nakashima T, Tomita H, Chitose S.
    Journal: Adv Otorhinolaryngol; 2011; 72():100-2. PubMed ID: 21865702.
    Abstract:
    We have studied the presence of local immunity in the larynx and its role and development of laryngeal glands in the human larynx. The local immune status in laryngeal secretion or related tissue specimens from the laryngeal ventricle was examined and the results were analyzed between individuals with or without head and neck cancer. Laryngeal secretions or mucosal tissue specimens were obtained during the microscopic laryngeal surgery or at the time of the surgery of the larynx. The laryngeal secretion contained immunological factors such as IgG, IgM, IgA or secretory IgA (SIgA). The mean level of SIgA of the mucosal tissue was low in patients with the benign laryngeal disease and considerably decreased in patients with previous radiation therapy. The level of SIgA in the laryngeal secretion closely correlated to the level of SIgA in the mucosal tissue. From the present study, we confirmed the actual presence of local immune function in the human larynx. Furthermore, the local immune status is affected by either the presence of malignancy or the treatment to the larynx such as radiation.
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