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Biomedical subjects

Tiecheng Pan

Publications and source records attributed to Tiecheng Pan.

4 recordsLinked to original sources

Clinical significance of VEGF-C and VEGFR-3 expression in non-small cell lung cancer.

The relationship between vascular endothelial growth factor-C (VEGF-C)/vascular endothelial growth factor receptor 3 (VEGFR-3) expression and clinicopathologic features of the patients with non-small cell lung cancer (NSCLC) was investigated. The expression of VEGF-C and VEGFR-3 was assessed in 65 patients with NSCLC by immunohistochemistry. The significance of VEGF-C and VEGFR-3 expression was analyzed statistically. The results showed that VEGF-C and VEGFR-3 were highly expressed in cytoplasm and membrane in lung cancer tissues with the positive rate being 55.4 % and 52.3 % respectively, while there was no expression in the normal lung tissues. The expression of VEGF-C was significantly increased in adenocacinoma as compared to other types of NSCLC (P<0.05). The VEGFR-3 expression was closely related with lymph node metastasis (P<0.01) and TNM stage (P<0.05). There was a positive correlation between the VEGF-C and VEGFR-3 expression in NSCLC patients (r=0.658, P<0.01). It is suggested that VEGFR-3 plays an important role in the lymphatic metastasis of NSCLC. The interaction between VEGF-C and VEGFR-3 may be deeply involved in the mechanism of lung cancer metastasis.

Adult↗

Huge benign mesenchymoma in pharynx-esophagus.

Benign mesenchymoma is an uncommon neoplastic disease and its occurrence in pharynx-esophagus is even more rarely reported. A successful case operation is reported. The origin of this tumor was in the pharynx-esophagus, and complete excision was achieved through a laterocervical approach.

Adult↗

Left ventricular bronchogenic cyst.

Bronchogenic cysts occurring in the left ventricle are a medical rarity. One successfully operated case is reported herein. The location of the cyst was just between the epicardium and myocardium of the inferior left ventricular wall, adjacent to the apex of the heart. Complete excision was achieved through a left anterolateral thoracotomy without extracorporeal circulation.

Bronchogenic Cyst↗

Cardioprotective effects of melatonin on recovery of rat donor hearts after 12-hour preservation.

The cardioprotective effects of melatonin on recovery of rat donor hearts after 12 h of preservation were investigated. Wistar rats weighing 200 to 250 g (n=24) were randomly divided into 3 groups. In the non-storage group (n=8), donor hearts were not stored. In the melatonin group (n=8), donor hearts were stored in 4 degrees C St. Thomas solution with melatonin (0.1 mmol/L). In the control group (n=8), donor hearts were stored in 4 degrees C St. Thomas solution only. The coronary flow (CF), cardiac function, coronary vasodilatory response, creatine kinase (CK) and high energy phosphate levels were measured after the hearts had been preserved for 12 h. Transmission electron microscopy was used to examine the microstructural changes after 12 h of preservation. The recovery of cardiac function and coronary vasodilatory response were significantly improved in the melatonin group (P<0.01). CK release decreased greatly in the melatonin group (P<0.01). High energy phosphate levels were significantly better preserved in the melatonin group (P<0.01). Histological findings were much better in the melatonin group than in the control group. These results suggest that melatonin has cardioprotective effects on the recovery of rat donor hearts after 12 h of preservation.

Animals↗