[The expression and significance of programmed cell death 5 and Bcelllymphoma/lewkmia-2 in sinonasal squamous cell carcinoma].

Objective: To explore the expression and significance of programmed cell death 5 (PDCD5) and Bcelllymphoma/lewkmia-2(Bcl-2) in sinonasal squamous cell carcinoma (SNSCC).

Method: Immunohistochemical method and Western Blot method was used to determine the expression of PDCD5 and Bcl-2 in specimen of SNSCC in thirty cases, sinonasal inverted papillomas (SNIP) in thirty-eight cases, and normal nasal mucosa in twenty cases.

Result: (1) The expression of PDCD5 protein in SNSCC significantly decreased compared with SNIP and normal nasal mucosa.

[The correlation studies between recurrent otitis media and adenoid hypertrophy in children].

Objective: To investigate the relationship between the immune status of adenoids and secretory otitis media (SOM).

Method: The adenoids tissue samples of 30 cases of recurrent secretory otitis media (SOM), 17 cases of non-recurrent secretory otitis media and 20 cases of the adenoids hypertrophy without SOM were studied by immunohistochemical method.

Result: The expression of PCNA, BCL-2, CD4+, CD8+ cells and CD4+/CD8+ in recurrent SOM tissue were 30.

[Expression of PCNA, BCL-2, CD4+, CD8+ in the adenoid tissues from children with secretory otitis media].

Objective: To investigate the relationship between immune status of adenoids and secretory otitis media (SOM).

Method: The adenoid tissue samples of 72 cases with SOM and 30 cases with adenoid hypertrophy without SOM were studied by immunohistochemical method.

Result: The PCNA, BCL-2, CD4+, CD8+ and CD4+ / CD8+ in SOM tissue samples were 30.

[The relationship between adenoids hypertrophy and secretory otitis media].

Objective: To investigate the relationship between immune status of adenoids and secretory otitis media (SOM).

Method: All the 76 cases of SOM were divided into 2 groups: recurrent group (46 cases) and control group (30 cases whose occurrence was less than 3 times). The manifestation of CD45RO, CD20, PCNA and BCL-2 in adenoids was detected with ultrasensitive (TM)S-P immunohistology.