Objective To prepare the liver targeting nano-liquid perfluorocarbon ultrasound contrast agent and observe its general characteristics;to observe the targeting combined effects of the human liver cells L02 and the targeted ultrasound contrast agent ;to evaluate the gathering imaging effects of the targeted ultrasound contrast agent. Methods Amine method was used to prepared asialoglycoprotein Gal specific ligand polylysine (Gal-PLL), rotary evaporator and sonicated liquid fluorocarbon were used to prepare nano lipid ultrasound contrast agent. Human liver cell L02 were cultured, the combined effects were observed according to the reacting time of the cells and the targeted nano-lipid ultrasound contrast agent. The nanolipid ultrasound contrast agent and the degassed_ water_ were loaded into cysts and their ultrasound imaging effects were observed by ultrasound diagnostic apparatus Philips iU22. Results The particle size of the liquid fluorocarbon nano-targeted lipid ultrasound contrast agent was extremely small, uniform, cylindrical and spherical. The cysts in vitro showed that the side of the targeted liquid perfluorocarbon nano-lipid ultrasound contrast agent showed high echo. Conclusions The targeted liquid perfluorocarbon nano-lipid ultrasound contrast agent can be effectively targeted to the human liver cells L02 due to carrying home-made Gal-PLL. The targeted ultrasound contrast agents can be imaging by ultrasound and be confirmed in vitro.The size of the contrast agent was small, therefore, it can be considered an ideal ultrasonic molecular probe and achieve the ultrasound molecular imaging in cell level.

OBJECTIVETo explore the expression of MMP2 and its correlation with the clinical features and prognosis of endometrial adenocarcinoma.

METHODSWe collected paraffin-embedded samples from 81 patients with endometrial adenocarcinoma aged 32 to 80 years to examine the expression of MMP2 using immunohistochemistry. The correlation of MMP2 expression with the clinical characteristics and prognosis of the patients was analyzed.

RESULTSMMP2 protein was expressed in the cytoplasm of the tumor cells. MMP2 over-expression was negatively correlated with tumor differentiation (P=0.015) and prognosis (P=0.041) of endometrial adenocarcinoma.

CONCLUSIONMMP2 over-expression is a potential malignant biomarker in endometrial adenocarcinoma.

Adult ; Aged ; Aged, 80 and over ; Biomarkers, Tumor ; metabolism ; Endometrial Neoplasms ; metabolism ; pathology ; Female ; Humans ; Matrix Metalloproteinase 2 ; metabolism ; Middle Aged

Objective To investigate the prevalence of nutritional risk (NRS2002) and malnutrition inhospitalized stroke patient and their nutritional intervention. Methods The stroke patients admitted to three de-partments of vascular neurology ward including cerebral hemorrhage, cerebral infarction and subarachnoid hemor-rhage in Beijing Tiantan Hospital from January 2018 to January 2019 were recruited using cluster sampling. Nutri-tional risk screening 2002 ( NRS 2002) was used to screen the nutritional risk of inpatients Malnutrition was as-sessed by criteria:(1) body mass index (BMI) <18. 5 kg/m2 with poorer general condition from January 2018 to January 2019;(2) Global leadership initiative on malnutrition ( GLIM) criteria were used except whole body muscle mass measurement from October 2018 to January 2019. The nutritional intervention for patients were closely observed during hospitalization. Results A total of 1532 patients were registered and1036 patients were included in the final analysis considering the inclusion and exclusion criteria. The prevalence of nutritional risk was 33. 0％ ( 342/1036) . The prevalence of malnutrition based on BMI and GLIM criteria was 0. 9％( 9/1036) and 2. 5％ (10/393) respectively. Among the 342 patients with nutritional risk, 112 patients received nutritional support therapy by tube feeding, but only 29 patients received nutritional support that met guideline standards. 81 patients received not standard nutritional support, and 2 patients received highly unregulated nutritional sup-port. No patients received sugar and electrolyte infusion, oral nutritional supplements ( ONS) , oral nutritional a-gents and compound nutrition intervention. The other 230 patients took hospital diet. Conclusion The prevalence of nutritional risk in hospitalized patients with cerebral hemorrhage, cerebral infarction or subarachnoid hemorrhage was high, and the prevalence of malnutrition was extremely low. There was a low proportion of nutri-tional support. High quality of large sample cohort studies will be conducted to show whether reasonable applica-tion of nutritional support therapy in patients with nutritional risk can improve patient outcome.

OBJECTIVE：To investigate the effect of increasing efficacy and decreasing toxicity of Limax extract （LE）on cyclophosphamide（CTX）in the treatment of hepatocellular carcinoma. METHODS ：The mice were randomly divided into normal group，model group ，CTX group （0.02 g/kg），LE low-dose ，medium-dose and high-dose groups （LEL，LEM，LEH group ，0.6，1.2，2.4 g/kg），CTX+LE low-dose ，medium-dose and high-dose combination groups （CTX+LEL，CTX+LEM，CTX+ LEH group ，the same dose as single drug group ），with 10 huangrenbin518@163.com mice in each group. Except for normal group ，other groups were inoculated with hepatoma cells H 22 in the left ar mpit to establish tumor bearing models. After 24 h of inoculation ，normal group and model group were intragastrically given normal saline ， and administration groups were intragastrically given corresponding drugs ，once a day ，for 10 days. On the second day after the last administration ，the general conditions of mice in each group were observed ；the body mass ，thymus index （LI），spleen index （SI）were measured ；the tumor inhibition rate was detected. The effect （q）of combination therapy was evaluated by King ’s formula . The counts of WBC ，RBC and PLT ，serum contents of ALT ，ALT，Scr and BUN were detected in model group ，CTX group and combination groups ，and the contents of MDA，SOD and GSH ，the levels of VEGF ，TNF-α and IL-6 in the tumor tissue were detected by colorimetry and ELISA in above groups. The protein expression of oncogenes （p53，Bcl-2 and Bax ）were detected by immunohistochemical method in model group，CTX group and CTX+LEM group. RESULTS ：The mice in the model group were in poor spirit and had symptoms of excessive drinking and eating ；although the body weight ，TI and SI were not significantly abnormal compared with normal group （P＞0.05），WBC count and AST content were significantly increased ，ALT and BUN contents were significantly decreased （P＜ 0.05 or P＜0.01）. Compared with model group ，above symptoms of mice were all improved in administration groups. The tumor weight of administration groups ，TI and SI of CTX group and TI of combination groups were decreased significantly ，but tumor weight of LEL group and LEH group ，TI and SI of LE single groups and combination groups were significantly higher than CTX group；tumor weight of combination groups were significantly lower than CTX group （P＜0.05 or P＜0.01）. The tumor inhibition rates of administration groups were 29.58％-72.08％. The q values of CTX+LEL group ，CTX+LEM group and CTX+LEH group were 1.03，0.97 and 0.86，respectively. Compared with model group ，WBC count ，AST and BUN contents of CTX group ，MDA contents of combination groups ，VEGF，TNF-α and IL-6 levels of administration groups ，the protein expression of Bcl- 2 in CTX group and CTX+LEM group were decreased significantly ；the activities of SOD and GSH of administration groups ，the protein expression of p 53 in CTX+LEM group and Bax in CTX group ，CTX+LEM group were increased significantly （P＜0.05 or P＜ 0.01）；WBC counts and AST contents of administration groups ，ALT content of CTX+LEM group ，SOD activity of CTX+LEH group and GSH activity of CTX+LEM group were all significantly higher than those of CTX group ；MDA content of CTX+LEH group，VEGF and TNF-α levels of CTX+LEM group and CTX+LEH group，IL-6 levels of administration groups were all significantly lower than CTX group （P＜0.05 or P＜0.01）. CONCLUSIONS ：LE combined with CTX can increase the anti-tumor effect，and LE can reduce the toxicity of CTX induced immunosuppression and bone marrow suppression in mice ，with effect of increasing efficacy and decreasing toxicity. The effect may be related to antioxidant stress ，inhibition of angiogenesis and secretion of inflammatory factors ，and regulation of apoptosis protein expression.