[Expression and clinical significance of cyclin H and CDK7 in human hemangiomas].

Objective: To investigate the expression and clinical significance of cyclin H and cyclin-dependent kinase 7 (CDK7) in human hemangiomas.

Methods: Immunohistochemistry technique was used to measure the expression of cyclin H and CDK7 proteins in proliferative, involuting hemangiomas and normal skin tissues. Immunohistochemical technique for factor VIII-related antigen was used to prove that the cells which expressed cyclin H and CDK7 were endothelial cells.

[The expression of p73 and c-fos protein in hemangioma and its significance].

Objective: To investigate the expression of p73 and c-fos protein and its significance in the development of children hemangioma.

Methods: The quantitative expressions of p73 and c-fos protein in hemangioma and normal skin were detected by immunohistochemistry.

Results: The expressions of p73 and c-fos protein were strong in proliferative hemangioma while they were very weak in involutional hemangioma and normal skin.

[Reconstruction of the remnant penis: a 52-case report].

Objective: To explore the effects of the combined method of abdominal axial flap transposition and penile elongation for the treatment of the remnant penis.

Methods: Fifty-two cases of the remnant penis treated with the combined method from 1984 April to February 2004 were analyzed retrospectively. Follow-up ranged from 0.

[Investigation of the influence of nitric oxide on the survival of a random pattern skin flap].

Objective: To investigate the changes of nitric oxide concentration in the distal portion of a random pattern skin flap and the influence of the exogenous L-arginine on the survival of the random pattern skin flap.

Methods: A random pattern skin flap (7 cm x 2 cm) was cranially designed and elevated on the back of a Wistar rat. An image analysis technology was used to evaluate the survival rate of the skin flap, while a biochemistry method was used to test the concentrations of the NO in the tissue.

[Correlation between tissue ultrastructure changes of small testis and sex hormone].

Objectives: To investigate the tissue ultrastructure changes of small testis and sex hormone and their correlation.

Methods: The patients were divided into small tests (n = 8) and control group(n = 12). FSH, LH, T were determined by radioimmunassay.