Hypoxia is the combined result of tumor over-growth and vascular structural abnormalities.Hypoxia is related to tumor invasiveness,radioresistance,and chemoresistance.18F-fluoromisoni-dzole (18F-FMISO) can selectively bind to hypoxic tissues of malignant tumors,and is thus useful for imaging of tumor hypoxia in cancer diagnosis and treatment.This review summarizes the state-of-art research of 18F-FMISO in comparison with other hypoxic agents when applied to animals and clinical studies.

Objective To explore the serum levels of cytokines in patients with depression and their correlations with sex,age,depression severity and anxiety severity.Methods After enrolling subjects into the corresponding patient group and control group,the same trained researcher should continue to collect general information of the enrolled subjects as well as the HAMA and HAMD scoring results collection and assessment;And the serum levels of interlukin-1β (IL-1β),interlukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) were detected with the method of enzyme-linked Immuno-sorbent assay (ELISA) in two groups.Results ① The serum levels of IL-1β,IL-6 and TNF-α of depression group were significantly higher than these in control group (P＜0.05),which were ((5.45±3.60) pg/ml vs(2.63± 1.92) pg/ml,(5.09±3.74) pg/ml vs (3.83±2.71) pg/ml,(5.77±3.94) pg/ml vs (4.05±3.25) pg/ml) respectively.②There was no significant difference in serum levels of IL-1 β,IL-6 and TNF-α between male and female patients with depression (P＞0.05).③ No conspicuous differences were found between the young group and the middle-aged group in serum levels of IL-1β,IL-6,TNF-α (P＞0.05).④ Serum level of IL-6 in major depressive disorder group((6.24±4.68) pg/ml) was more higher than that in mild to moderate depression group((3.95± 1.97)pg/ml),and the difference was statistically significant (t=2.467,P＜0.05).⑤There was significant differences in serum level of IL-6 between two groups,which were depression patients with and without anxiety (separately(5.80±4.37) pg/ml vs(3.87±1.80) pg/ml) (t=2.397,P＜0.05).Conclusions ①There is a phenomenon of immune activation,and levels of blood cytokines are raised in patients with depression.②Age and gender have no impact on depression in the level of cytokines.③IL-6 may be an important biological index that reflected the severity of depression and anxiety.

Aim To investigate the role of chemokine-like factor 1 ( CKLF1 ) in SH-SY5 Y cell migration and its molecular regulatory mechanism. Methods SH-SY5Y cells were stimulated with CKLF1 for 0. 5 h, 2 h, 8 h and 24 h, respectively. The migration distance and the percentage of migration cells were recorded by CELLocate analysis. The phosphorylation of focal ad-hesion kinase ( FAK) at Tyr-397 site was detected by Western blot analysis. By chemotaxis assays, we con-firmed the chemotaxis of CKLF1. Furthermore, FAK inhibitor PF-573228 and PLCγ inhibitor U73122 were used for the research of molecular regulatory mecha-nisms involved. Results CKLF1 promoted cell migra-tion and induced a strong increase in the phosphoryla-tion level of FAK-pY397 , which were significantly at-tenuated by the presence of U73122 ( a specific inhibi-tor for PLCγ) . In addition, the chemotaxis of CKLF1 was obviously blocked by the FAK inhibitor PF-573228 . Conclusion CKLF1 induces SH-SY5 Y cell migration via PLCγ/FAK signaling pathway.

Objective To analyze the characteristics and clinical value of time intensity curve (TIC) of contrast-enhanced ultrasound (CEUS) in recurrent small hepatocellular carcinoma (RSHCC) and primary small hepatocellular carrcinoma (PSHCC). Methods Sixty-five cases of RSHCC (all lesions ≤3 cm) were devided into group B1 with 42 cases of RSHCC (≤2 years ) , and group B2 with 23 cases of RSHCC ( > 2 yeras ) and group A invloved 49 cases of PSHCC (all lesions ≤3 cm). Enhancement patterns in arterial, portal and delayed phase were evaluated respectively in three groups through CEUS and analytic software Sonoliver was applied to obtain quantitative features of CEUS in the region of interest. Receiver operating characteristic (ROC) was drawn and the area under curve (AUC) was calculated. Results CEUS showed hyper-enhancement difference in arte-rial phase in group B2 (72.4%) and group A (94.8%)(P′ = 0.008) showed statistical significance, but no sig-nificance was found in enhanced iso in portal phase (P = 0.078). Hypo-enhancement in the delayed phase in group B2 (75.9%), group A (96.6%) and group B1 (95.3%) (P′ = 0.003, P′ = 0.005). TIC showed HT difference (half time of descending) in B2 group, A group and B1 group (P′ = 0.007, P′ = 0.013) indicated statistical significance but RT, TTP, MTT(P = 0.319,P = 0.104, P = 0.461) showed no difference. AUC was 0.841 (half time of descending). Conclusions Enhancement patterns of CEUS (RSHCC) are related to recur-rent time . En hancement patterns of RSHCC (> 2 years ) is not typical so CEUS should be combined with quanti-tative analysis of TIC to provide reference for its treatment and prognosis.

A method was developed for the determination of fumonisin B1 ( FB1 ) and fumonisin B2 ( FB2 ) in livestock and poultry formula feeds by high performance liquid chromatography-tandem mass spectrometry (LC-MS/MS. After extracted by acetonitrile-water (50: 50, V/V) and purified with MAX solid phase extraction column, the fumonisins were separated by Thermo C18(100 mm×2. 1 mm, 5 μm) column with 0. 1% formic acid in water and methanol as the mobile phase. Multiple reaction monitoring (MRM) was used to acquire mass spectrometric data under electrospray positive ionization mode ( ESI+) . The results showed that the linear correlation coefficients (R2) of fumonisin FB1 and FB2 were all greater than 0. 999 in the range of 1-500 μg/L. The limits of quantitation (LOQ) were 0. 098 and 0. 197 μg/L, and the limits of detection ( LOD) were 0. 328 and 0. 656 μg/L, respectively. At different spiked levels, the recoveries of FB1 and FB2 were ranged from 89. 7% to 95. 1%, and the relative standard deviation ( RSD) was ranged from 3. 2% to 8. 6%. Additionally, the detection rate reached 98. 11% screening through the established method in the 106 livestock and poultry formula feeds collected from markets. This result indicates that the method is suitable for accurate quantitative analysis of FB1 and FB2 in different complicated livestock and poultry formula feeds.

Objective To explore antitumor effect of 131I-Trastuzumab on human epidermal growth factor receptor(HER) 2 overexpressing breast cancer cells and investigate its possible mechanism.Methods The expression levels of HER2 of three different breast cancer cell lines (BT474,MCF-7,HCC1937) were detected with immunofluorescence.Trastuzumab was labeled with 131I using the Iodogen method and 131I-Trastuzumab was isolated with ultrafiltration membrane,then the labeling efficiency,radiochemical purity and immunoreactivity were measured.The effects of 131I,Trastuzumab and 131I-Trastuzumab on viability of BT474 cells were evaluated with cell counting kit-8 (CCK-8) assay.The levels of total Akt and phosphorylated Akt (p-Akt) were detected with Western blot analysis.One-way analysis of variance (ANOVA),ANOVA for factorial design,Bonferroni correction and Pearson correlation analysis were used for data analysis.Results The expression level of HER2 in BT474 cells was much higher than those in HCC1937 and MCF-7 cells.The labeling efficiency,radiochemical purity and immunoreactivity of 131I-Trastuzumab were (89.71± 2.93)％,(91.80±1.43)％ and (58.84±3.35)％ respectively.131I (4.625 GBq/L),Trastuzumab(125.0 rmg/L) and 131I-Trastuzumab(4.625 GBq/L) exhibited a dose-dependent cytotoxicity against BT474 cells (r =-0.964,-0.912,-0.618;all P＜0.05).The cell viability of 131I-Trastuzumab treated gourp (34.73％ ±5.03％) was significantly lower than those of 131I and Trastuzumab treated groups (64.36％± 1.51％ and 58.09％±4.14％;t=10.373 and 8.180,both P＜0.05),and the cell viability of control group was (100.00±4.54)％.131I-Trastuzumab shown a positive multiplicative interaction between 131I and Trastuzumab (F=9.226,P＜0.05;CDI =0.929).Western blot results showed that there was no significant difference of total Akt expression among the control group,131I group,Trastuzumab group and 131I-Trastuzmab group (F=0.208,P＞0.05).P-Akt expression in both Trastuzumab group and 131I-Trastuzumab group were much lower than those of control group and 131I group (t=12.524,15.984,7.347,10.807;all P＜0.05),while there was no significant difference of p-Akt expression between Trastuzumab group and 131I-Trastuzumab group(t =3.460,P＞0.05).Conclusions 131I-Trastuzumab may kill HER2 overexpressing breast cancer cells more effectively than Trastuzumab alone.The underlying mechanism may be attributed to that 131I-Trastuzumab may enhance the radiosensitivity by the inhibitory effect on PI3K/Akt pathway and thus exert synergistic effects with 131I.

Objective To investigate the therapeutic effect of modulated medium frequency current therapy (MMFCT) combined with infrared therapy on patients of acute facial neuritis. Methods A total of forty-six patients with acute facial neuritis were divided into two groups (observation group and control group) randomly and medially. Every patient received medication. Meanwhile, observation group received MMFCT and infrared therapy. Before the treatment, and after two and four weeks of treatment, Portmann scale were used to evaluate the autonomic movements of the facial expression muscles on both sides. After 4 weeks of treatment, the outcome was evaluated by House-Brackmann facial nerve grading system. Results There were no significant differences in Portmann scales before treatment between two groups. Portmann scales were higher in observation group than those of control group after two and four weeks of treatment (P<0.05). With the duration of treatment, Portmann scales were increased successively in two groups. The significant difference was found in multiple comparisons between groups. After 4 weeks of treatment, the efficacy was significant in the observation group, compared with control group, the difference was significant (P<0.05). Conclusion Modulated medium frequency current therapy combined with infrared therapy have a better effect than isolated medication.

Objective To observe the effect of the 8-word bandage on the walking ability of stroke patients with knee hyperextension. Methods Fifty patients with stroke combined with knee hyperextension were randomly divided into the observation group and the control group with 25 cases in each group. The control group was treated with conventional methods, including Bobath technology, Brunnstrom therapy and motor relearning primarily rehabilitation training. In addition to the conventional methods, patients in the observation group used 8-word bandage to fix knee joint in walking training. Before and after 8 weeks of treatment, Holden walking function classification, 10-meter maximum walking speed and improved Barthel index were adopted to evaluate the walking ability, maximum walking speed and the life ability of the patients. Results There were no significant differences in the scores before treatment between the two groups. The Holden walking function classification, the 10-meter maximum walking speed and the Barthel index scores were significantly improved after 8-week treatment in both two groups (P<0.05), and patient conditions were more significantly improved in the observation group than those of the control group (P<0.05). Conclusion Using 8-word bandage to fix knee joint can significantly improve knee hyperextension in patients with stroke, so as to improve the walking ability and activities of daily living.

Objective:Based on the occupational cohort of Beijing Medical Examination Center, to explored the relevant factors of nonalcoholic fatty liver disease (NAFLD), and to provide scientific basis for screening and early diagnosis of NAFLD in high-risk population.Methods:Based on the cohort of occupational population who underwent physical examination in Beijing physical examination center from January to December 2009, the physical examination indexes were collected, and a retrospective survival cohort with a follow-up period of 3 years was established.According to the idea of nested case-control study, each case was randomly matched with the same gender, age and physical examination time in the same month by using the method of random sampling without putting back.Conditional logistic regression model was established by using the matched data.The diagnostic value of related indicators for NAFLD was analyzed by receiver operating characteristic curve (ROC).Results:A total of 1 194 subjects were included, including 684 males (57.3%, 684/1 194) and 510 females (42.7%, 510/1 194). The age was (50.8±11.6) years.The age ranged from 24.0 to 88.0 years.There were 597 patients with NAFLD, including 342 males and 255 females.Logistic regression analysis showed that body mass index, high density lipoprotein cholesterol, hemoglobin, platelet count, uric acid and urea nitrogen were statistically significant in male model (all P<0.05). Body mass index( OR=1.242, 95% CI 1.143-1.349, P<0.001), hemoglobin( OR=1.034, 95% CI 1.015-1.053, P<0.001), platelet( OR=1.005, 95% CI 1.002-1.009, P=0.005), uric acid( OR=1.004, 95% CI 1.001-1.006, P=0.004), high density lipoprotein cholesterol( OR=0.377, 95% CI 0.184-0.775, P=0.008) and urea nitrogen( OR=0.807, 95% CI 0.693-0.938, P=0.005) were protective factors for NAFLD in male patients..Body mass index( OR=1.552, 95% CI 1.366-1.762, P<0.001), triglyceride ( OR=2.606, 95% CI 1.616-4.204, P<0.001), blood glucose( OR=2.199, 95% CI 1.332-3.631, P=0.002), uric acid( OR=1.005, 95% CI 1.001-1.010, P=0.024) in female model were statistically significant ( P<0.05), and were risk factors for NAFLD in female patients. Conclusion:The incidence rate of NAFLD was different among different gender and age, body mass index, high density lipoprotein cholesterol, hemoglobin, platelet count, uric acid, urea nitrogen, triglyceride and blood glucose were closely related to the incidence of NAFLD.

Objective: To examine the efficacy and safety of pemetrexed plus apatinib for the treatment of advanced non-squamous non-small cell lung cancer (NSCLC) in elderly patients. Methods: Between January 2016 and June 2017, 38 elderly patients with ad-vanced non-squamous NSCLC from Qingdao Municipal Hospital were examined. All patients received first-or second-line therapy. The inclusion criteria were an age of≥65 years, physical status score of 0-2, and expected survival time of>3 months. Eighteen patients were assigned to the test group, and the remaining 20 patients were assigned to the control group. The patients in the test group were treated with pemetrexed plus apatinib, pemetrexed 500 mg/m2 on day 1 and apatinib 250 mg/d on days 1-21. The control group re-ceived pemetrexed in a 21-day cycle until the disease progressed or intolerable adverse reactions developed. The study was reviewed and approved by the medical ethics committee of Qingdao Municipal Hospital. Results: The disease control rates in the test and con-trol groups were 72.2% and 35%, respectively, with a statistically significant difference (χ2=5.265, P=0.022). The median progression-free survival time (PFS) in the test and control groups were 5.7 months [95% confidence interval (CI): 2.8-8.6] and 3.1 months (95% CI:2.7-3.5), with a statistically significant difference (χ2=4.01, P=0.045). The difference in the incidence of hand-foot syndrome and hyper-tension between the two groups was statistically significant (P=0.007 and P=0.016, respectively), with side effects of 1 or 2 degree in most cases, which was acceptable. Conclusions: Pemetrexed plus apatinib has a definite curative effect on advanced NSCLC, with con-trollable adverse reactions.