[Detection of CD4+CD25+ regulatory T cells in liver tissues of fibrosing cholestatic hepatitis after liver and kidney transplantation].

Objectives: To study the expression and distribution of CD4+CD25+ regulatory T cells (Treg) in liver tissues of patients with fibrosing cholestatic hepatitis (FCH) after liver and kidney transplantation and to investigate their roles in the pathogenesis of FCH.

Methods: Liver biopsy specimens from five patients with FCH were studied histopathologically. A specific marker for CD4+CD25+ regulatory T cells in those specimens was detected with anti-FOXP3 monoclonal antibody by immunohistochemistry.

[Treatment efficacy of preservation of uvulopalatopharyngoplasty by using microwave].

Objective: To study the effect of uvulopalatopharyngoplasty (UPPP) by using microwave on obstructive sleep apnea-hypopnea syndrome (OSAHS) with Velo-pharyngeal obstruction.

Method: Sixty-one cases who were diagnosed as OSAHS with Velo-pharyngeal obstruction were performed UPPP by using microwave, among which 9 cases received microwave palatopharyngoplasty only. Thirty-six cases underwent bilateral palatine tonsillectomy and another 16 cases underwent bilateral palatine tonsillectomy and tongue base microwave ablation apart from microwave pharyngoplasty.