Nasal cavity-maxillary sinus-pterygopalatine fossa-Meckel's cave: a preliminary anatomic study of an endoscopy-based operative approach.

Objective: To provide a new approach for the treatment of tumor in Meckel's cave, by dissecting adjacent structures of the nasal cavity-maxillary sinus-pterygopalatine fossa-Meckel's cave approach.

Methods: Fifteen adult cadaver heads (30 sides) were dissected and the correlated anatomic landmarks were observed, measured and analyzed in an operative route.

Results: The approach was divided into 3 steps: entering the maxillary sinus, the later pterygopalatine fossa and the final Meckel's cave.

[The effect of motilin in PVN of hypothalamus on the gastric motility].

Aim: To investigate the role of motilin in paraventricular nucleus (PVN) of hypothalamus on the regulation of gastric motility and the mechanism.

Methods: Immunohistochemistry and microinjection of motilin into PVN were used to observe motilin neural cells in PVN, the neural path between PVN and dorsal vagal complex (DVC) and the changes of gastric motility in conscious rats.

Results: (1) There were motilin immunoreactive-cells in PVN and a significant increase was found in groups of fasting and HCL-perfusion into duodenum.