RESUMO
Objective To discuss the clinical value of serum tumor specific growth factor (TSGF) and vascular endothelial growth factor (VEGF) in early diagnosis of thyroid cancer.Methods Eighty thyroid cancer patients (thyroid cancer group),120 nodular goiter patients (nodular goiter group),and 80 healthy adult (blank control group) were enrolled in this study.The level of TSGF and VEGF in two groups were detected by ELISA and compared.Results The level of TSGF and VEGF in thyroid cancer group and nodular goiter group were significantly higher than those in blank control group (P ＜ 0.05).Conclusion Serum TSGF and VEGF have some clinical value in early diagnosis of thyroid cancer.
RESUMO
UNLABELLED: It has been documented that astronauts suffer from a progressive and continuous negative calcium balance in space flight. The aim of this trial was to demonstrate the role of force incentive on protection of bone lose in stimulated microgravity rats. MATERIALS AND METHODS: 7-week-old male Wistar rats were randomly divided into 3 groups. One group was suspended by tail for 21 days, one groups were suspended for 21 days and play 1 minutes/day of force incentive (2N, 10 Hz), one group served as control. bone mass, biomechanical properties, histomorphometry and biochemical marked were determined. Results Short-time force incentive not only can improve the metabolism of calcium and phosphorus as well as histomorphometry of tibia, but also can increase bone mineral, biomechanical properties and decrease the content of NO in femur. Conclusion Short-time force incentive can protect the bone lose in stimulated microgravity. Compare with the traditional methods such as using drug, the physical methods, for example, short-time force incentive are less vehement and more safety, which can maintain the normal structure of bone. So short-time force incentive maybe can develop to the primary protective method on osteoporosis.
