[Differences in risk factors of diabetic foot in the patients in South and North China].

Objective: To investigate the differences on the diabetic foot problems and its risk factors in south and north of China.

Methods: Patients with foot problems were surveyed from January 1 to December 31, 2004 in 14 teaching hospitals located in different cities in China, including demographic data, present and past history of the foot problems and peripheral artery disease (PAD), the classification of the foot ulcers based on the Wagner' system, control of the hyperglycemia and lipids disorder, medical cost in hospital and the diabetic complications. All the patients were divided into two groups due to their geographical data, south and north.

[A multicenter survey on the diabetic foot and its neuropathy in China].

Objective: To investigate the characteristics of diabetic foot with neuropathy and its related factors.

Methods: 530 out- and in-patients in 14 grade A class 3 comprehensive hospitals in China with foot problems were surveyed. 337 of the 500 patients (63.

[The medical cost of diabetic patients with foot problems due to peripheral artery disease].

Objective: To investigate the medical cost of diabetic patients with foot problems and peripheral artery disease.

Methods: Type 2 diabetic patients with foot problems admitted into the endocrinology departments of 14 teaching hospitals from Jan. 1 to Dec.

Study on structure and characterization of inclusion complex of gossypol/beta cyclodextrin.

The inclusion complex of beta-cyclodextrin with gossypol was synthesized by using a convenient method of microwave irradiation. The structure of the complex was determined by 1H NMR, IR spectroscopy, and as well as the elemental analysis; the thermal stability was studied by means of differential thermal analysis (DTA) and thermogravimetric analysis (TGA). The association constant between gossypol and beta-cyclodextrin measured via UV spectroscopy was 4462M(-1) at room temperature, following stoichiometry 1:2.