Clinical and pathological characteristics and prognostic evaluation of high-risk small renal carcinoma / 中华泌尿外科杂志

Objective To study clinical and histopathological features of high-risk small renal carcinoma and provide theoretical basis for the individualized treatment.Methods This retrospective study analyzed the clinical and histological data of 21 patients of high-risk small renal cell carcinomas which were highly aggressive or advanced stage, admitted from Jan 2000 to July 2015.There were 15 males and 6 females,and the average age was (61.5 ±7.1) years (ranged 27 to 75 years).The mean diameter of tumors was 3.3cm (ranged 2.0 to 4cm).The study mainly focused on pathological character and stage, Fuhrman grading, existence of perirenal tissue or vascular invasion, venous embolus and distant metastasis.Results Of all these 21 cases, 17 cases were clear cell carcinomas, 1 was papillary carcinoma, 2 were hybrid cellular tumor ( malignant rhabdoid tumor and sarcomatoid carcinoma) and 1 was sarcomatoid carcinoma. Among the 17 clear cell carcinoma cases, 12 were Fuhrman grade Ⅱ, 5 were grade Ⅲ and one was gradeⅣ.Tumor infiltrated renal vein or its branches and renal vein embolus were found in 7 cases.The tumor infiltrated perirenal or renal sinus fat were found in 11 cases.Synchronous lung and local lymph nodes metastasis were found in 3 patients respectively.Moreover, there was 1 case with metastasis to the brain (FuhrmanⅣ).The final clinical stage were T3a N0M0 in 14,T1a N1M0 in 3 and T1a N0M1 in 4 cases. Conclusions Small renal tumors are heterogeneous in its biological behavior and the minorities are aggressive with infringement of perirenal fat or simultaneous local lymph node or distant metastasis.When the tumor is greater than 3.0 cm in diameter and with high grade in Fuhrman classification, sarcomatoid carcinoma are more likely to be highly aggressive and advanced stage.

Effect of atorvastatin on adventitial fibroblast phenotype differentiation in atherosclerosis of apolipoprotein E-knockout mice / 中国病理生理杂志

AIM: To explore the effect of atorvastatin on the expression of α-SMA and TGF-β1 in the adventi-tia of ApoE-/-mice with atherosclerosis, and to investigate the underlying mechanism of atorvastatin therapy.METHODS:Male ApoE-/-mice (n =40) at 6-weeks of age were used to establish the atherosclerosis model by feeding with high fat diet. The mice were randomly divided into model group and atorvastatin group.In atorvastatin group, the mice were lavaged with atorvastatin at dose of 20 mg? kg-1? d-1 .The mice in model group were given normal saline.C57BL/6 mice of the same age served as control group, feeding with ordinary food.The mice were respectively sacrificed at the time points of 10 and 15 weeks after feeding with different diets.The ascending aorta was removed for serial sectioning.Some sections were per-formed with Movat staining in order to observe the morphological changes of the tissues, and to measure the relative athero-sclerotic plaque area and the thickness of the adventitia.Some sections were stained with Sirius red to identify the collagen synthesis.Immunohistochemistry assay was prepared to observe the expression of α-SMA and TGF-β1 in the adventitia at different time points.The expression of TGF-β1 at mRNA and protein levels in the thoracoabdominal aorta was measured by RT-qPCR and Western blot.RESULTS: Compared with model group, the formation of plaque in atorvastatin group signifi-cantly descended.Meanwhile the adventitial thickness and collagen synthesis also decreased.The results of immunohisto- chemical staining showed that compared with 10 weeks-model group, α-SMA and TGF-β1 in 15 weeks-model group was in-creased.The expression of α-SMA and TGF-β1 in atorvastatin group decreased significantly compared with model group. The expression of TGF-β1 at mRNA and protein levels in model group were higher than those in control group.They de-creased in atorvastatin group compared with model group.Compared with 10 weeks-model group, the mRNA and protein of TGF-β1 in 15 weeks-model group were increased.CONCLUSION: Atorvastatin modulates adventitial fibroblast phenotype differentiation by suppressing expression of TGF-β1 and intervenes atherosclerotic development in ApoE.

Pracice and Exploration of Open-laboratory in Pathophysiology / 中华医学教育探索杂志

From September of 2006,Department of Pathophysiology opened laboratory to the undergraduates of 2004 grade.Stu- dents chose titles and designed experiments by themselves,and after expert teachers' assessment,they put them into practice. Functional Laboratory of the college is in charge of the oprtation and administration of it.Through this semester's practice and exploration,we got satisfactory effect and great welcome from students.

Let talk teaching into pathophysiologic teaching / 中华医学教育探索杂志

Talk teaching is an effective form of teaching research activity.It focuses on the teachers,teaching ideas and their abilities of curriculum development,curriculum designing and teaching practice.It is of great significance in optimizing pathophysiologic teaching,improving the teaching effect and teachers'quality.It is worth discussing and promoting.Talk teaching should be the basic skill necessary to the teachers of basic medicine.

Exploration and practice of interactive teaching method in experiments of pathophysiology teaching / 中华医学教育探索杂志

In the development pathology physiology experiment teaching,we used the interactive teaching method to train the students’ability to solve problems and fully arouse their enthusiasm,and got good results in the pathophysiology experiment.