[Preparation of sinomenine microemulsion and its transdermal absorption].

Objective: To screen the optimum formulation and prepare O/W sinomenine microemulsion and investigate its in vitro transdermal delivery ability.

Method: The microemulsions were prepared with the formulation containing oleic acid-tween 80-dehydrated alcohol-water by the pseudo-ternary phase diagram. The permeation flux of sinomenine was determined in vitro by Franz diffusion cell fitted with rat skin.

[A clinical study on the extended reverse digital artery island flap].

Objective: To investigate the feasibility and clinical effect of the extended reverse digital artery island flap including dorsal digital nerve.

Methods: Since 2001, 7 cases of pulp and digital palm defects were repaired by the extended reverse digital artery island flap including dorsal digital nerve.

Results: All the flaps survived.