OBJECTIVE: To investigate the protection mechanism of volatile oil of Magnolia biondii Pamp. (VOMBP) against diabetic nephropathy in rats by observing its effects on level of soluble P-selectin (sP-selectin) in serum and expression of P-selectin in renal tissue. METHODS: Fifty SD rats were randomly divided into normal control group, untreated group, and low-, medium- and high-dose VOMBP-treated group. Diabetic nephropathy was induced in rats by intraperitoneal injection of 1% streptozotocin. Before and the 1st day, 4th, 8th and 12th week after the induction, random blood glucose (RBG) and 24-hour urinary micro-albumin were detected in different groups. At the 12th week, the rats were sacrificed to collect the blood samples and renal tissues. The contents of blood urea nitrogen (BUN) and serum creatinine (SCr) were detected and the pathological change in renal tissues was observed by light microscope; the level of sP-selectin was detected by enzyme-linked immunosorbent assay and the expression of P-selectin protein in renal tissues was measured by immunohistochemical method. RESULTS: Compared with the normal control group, RBG, 24-hour urinary micro-albumin, the contents of BUN, sP-selectin in serum and expression of P-selectin protein in renal tissue in the untreated group were significantly increased (P<0.01), the content of SCr was significantly decreased (P<0.01), and pathological change of renal tissues was also obvious. Compared with the untreated group, 24-hour urinary micro-albumin, the level of sP-selectin in serum and expression P-selectin protein in renal tissue of the three VOMBP-treated groups were all significantly decreased (P<0.01), and pathological change was lessened too. However, there were no significant differences among the three VOMBP-treated groups (P>0.05). CONCLUSION: VOMBP can protect the kidney in rats with diabetic nephropathy by inhibiting the expressions of P-selectin protein in serum and in renal tissue.

Three kinds of biomedical materials of stomatology were introduced,including metal materials,polymers and non-metal bio composites.The literatures related to stomatology biomedical materials from 2008 to 2015 were collected in PubMed medical literature retrieval service system,and then statistical method was used to analyze the literature number,the numbers of literatures on different materials as well as the nations distribution.Composite,intelligent and functional materials were pointed out to be taking the place of metal materials,and thus might extend their clinical application in the future.

Objective To study the effect of the combined psychological intervention of ambroxol on the patients with lung cancer after thoracoscopic lobectomy. Methods January 2015 to December 2016, Beijing Jian Gong Hospital under thoracoscope lung resection of 64 cases of patients with lung cancer, the control group treated with saline 600 mL/d, experimental group implementation of ammonia bromine line on postoperative 3 days for the patient on the day of surgery until given intravenous 600 mL/d hydrochloric acid ammonia bromine injection combined psychological intervention treatment. Results There were no deaths in the perioperative period, but the lung complications in the experimental group were significantly lower than those in the control group. There were significant differences in mechanical ventilation, ICU time, postoperative hospital stay, and treatment cost after surgery (P < 0.05). Conclusion For patients with lung cancer in perioperative implementation under the thoracoscope lung resection and intravenous hydrochloric acid ammonia bromine joint line comments fluid psychological intervention treatment, effectively improve the patients' lung function and significantly lower the incidence of complications, shorten the patient's hospital stay, reduce the economic burden, and can be applied clinically.

Objective To investigate the expression of FTO in gastric cancer tissues and the functional significance of FTO in MGC-803 cell line.Methods The FTO mRNA was detected by RT-qPCR in 54 cases of gastric cancer samples and their paired adjacent normal control tissues.The effect of FTO overexpression in MGC-803 on cell proliferation,cell migration and invasion were detected by CCK-8,wound heal and ranswell assays,respectively.Results The expression of FTO mRNA was significantly lower than that of adjacent tissues(P＜O.05).Furthermore,overexpression of FTO in MGC-803 cells inhibited cell proliferation,cell migration and invasion.Conclusions FTO is low expressed in gastric cancer tissues and inhibits gastric cancer cell line MGC-803 proliferation,migration and invasion.FTO is closely associated with the development of gastric cancer.

Objective To detect the expression of dead box 1(DDX1)gene in tumor tissue and pericarcino-matous tissue of clinical neuroblastoma(NB)samples,and explore the relationship between DDX1 and NB. Methods Five cases of pathological specimens in children with NB were chosen from Department of Pathology,the First Affi-liated Hospital of Xinxiang Medical University between January 2012 and December 2014. In the 5 cases,3 cases were male,2 cases were female,the age of 1 - 5 years old,average age(2. 1 ± 1. 6)years. The NB tissue and pericarcino-matous tissue(pericarcinomatous tissue was normal tissue which was at least 2 cm from the tumor tissue)of 5 children were collected and fixed in 40 g/ L formaldehyde solution. Then with the conventional dehydration,embedding,sectio-ning, dewaxing, hydration, antigen repair, add primary antibodies, secondary antibodies, diaminobenzine chromogenic. The expressions of DDX1 in tumor tissue and pericarcinomatous were observed with light microscopy and with semi - quantitative analysis.(1)Staining degree:no staining with 0 score;light staining with 1 score;medium staining with 2 scores;deeply staining with 3 scores.(2)Positive cells proportion:positive cells proportion ﹤ 10% with 0 score;positive cells proportion within 10% - 30% with 1 score;positive cells proportion within 31% - 60% with 2 scores;positive cells proportion ﹥ 61% with 3 scores. Final scores were a half of the sum of staining degree score and positive cells proportion score,final score within 0 -1. 0 with - ,1. 1 -2. 0 with + ,2. 1 - 3. 0 with + + ,3. 1 -5. 0 with + + + . Results DDX1 were expressed in NB and pericarcinomatous tissues,but visible DDX1 positive staining number more and deeper in NB,DDX1 positive staining number less and light in pericarcinomatous tissues. Five cases of pericarcinomatous tissues immunohistochemical semi - quantitative score were negative and final scores were 1. 0 score or less,the mean value was 0. 5 score. NB immunohistochemical semi - quantitative score were+or + +and final scores were 1. 5 score or higher,the mean value was 1. 8 scores,the expressions of DDX1 were sig-nificantly higher in NB than the pericarcinomatous tissues. Conclusions DDX1 is highly expressed in NB,which may contribute to the development of NB. This suggest DDX1 may serve as an oncogene and play a catalytic role in the de-velopment of NB,which provides a clinical evidence for the follow - up study.

Objective To explore the effects of dead box 1 (DDX1) gene on cell apoptosis,proliferation and cell cycle of neuroblastoma(NB) cells.Methods SK-N-BE(2)/blank,SK-N-BE(2)/shV and SK-N-BE (2)/shDDX1 cells were seeded in 96-well plates,which grew in good condition and in the logarithmic growth phase,5 000 cells were inoculated in each well and 5 repeated holes were set.Cell count kit 8 (CCK-8) was used to detect the cell number at 12 h,24 h,36 h,48 h,and the average was calculated.The time (hour) was set as abscissa,the optimal density (A) value at 450 nm was set as vertical axis,and the growth curves of these 3 cells were drawn to investigate the effects of DDX1 on the proliferation of NB cells.After 24 h,flow cytometry (PI staining) was used to detect the apoptosis of SK-N-BE (2)/blank,SK-N-BE (2)/shV and SK-N-BE (2)/shDDX1 cell lines to observe the effects of DDX1 on the apoptosis of NB cells.After 24 h,flow cytometry (PI staining) was used to detect the proportion of SK-N-BE(2)/blank,SK-N-BE(2)/shV and SK-N-BE(2)/shDDX1 cells at G1,S,M,G2 stage to observe the effects of DDX1 on the cell cycle of NB cells.Results SK-N-BE (2)/shDDX1 cell proliferation was significantly lower than SK-N-BE(2)/blank and SK-N-BE(2)/shV cells,that was to say,DDX1 knockdown reduced the cell proliferation of NB.According to the flow cytometry results,the total average apoptosis rate was 5.28％ in SK-N-BE (2)/shV cells,and the total average apoptosis rate was 9.99 ％ in SK-N-BE (2)/shDDX1 cells.The number of apoptotic SK-N-BE (2)/shDDX1 cells was significantly higher than the number of SK-N-BE (2)/blank and SK-N-BE (2)/shV cells,which indicated that DDX1 knockdown increased tumor cell apoptosis of NB.Compared with SK-N-BE(2)/blank and SK-N-BE(2)/shV cells,the cell cycle of SK-N-BE(2)/shDDX1 cells was arrested,and the proliferation was affected.Conclusions After DDX1 expression is inhibited,the cell cycle of NB cells are affected,the cell apoptosis is increased,and the cell proliferation is reduced.

Objective To explore the effects of dead box 1 (DDX1) gene on invasion,migration and drug resistance capability of neuroblastoma(NB) cells.Methods According to the virus drop degree,the appropriate amount of target virus(Lenti-DDX1-MIR virus liquid,drop degrees 1012 TU/L) and negative control virus(Lenti-EGFP virus liquid,drop degrees 3 × 1011 TU/L) (multiplicity of infection was 10) were added into 2 hole cells,respectively.SK-N-BE(2)/blank,SK-N-BE(2)/shV and SK-N-BE(2)/shDDX1 cells which grew in good condition were cultured.Transwell chamber was used to detect the invasion,and cell staining was made with crystal violet.The researchers calculate 5 field counting in each small room and calculate the average cell invasion rate.Transwell chamber was used to detect the migration,and cell staining was made with crystal violet.The 570 nm absorbance values was tested with enzyme linked immunosorbent assay (ELISA) reader,and cell migration was calculated.The researchers used 50 mg Cisplatin,solution 10 g/L mother liquor standby with 5 mL dimethyl sulphoxide,and 50 mg Doxorubicin,solution 1 g/L mother liquor standby with PBS.Drugs were added to the cell culture plate,and Doxorubicin final concentration was 1.0 mg/L,and Cisplatin final concentration was 2.5 mg/L,and photographic record was documented after drug treatment for 24 h.Cell Count Kit-8 (CCK-8) was used to detect the drug sensitivity to NB cells to Doxorubicin and Cisplatin.Results Transwell results showed that,cell invasion concentration in SK-N-BE (2)/shDDX1 was 60％ compared with SK-N-BE (2)/blank and SK-N-BE (2) /shV;Crystal violet staining showed that cell invasion of SK-N-BE(2)/shDDX1 was significantly weaker than that of SK-N-BE(2)/blank and SK-N-BE(2)/shV cells,that is to say,DDX1 knockdown reduced the cell invasion of NB.Transwell results showed that,cell migration concentration in SK-N-BE(2)/shDDX1 was 50％ compared with SK-N-BE(2)/blank and SK-N-BE(2)/shY;Crystal violet staining showed that cell migration of SK-N-BE(2)/shDDX1 was significantly weaker than that of SK-N-BE(2)/blank and SK-N-BE(2)/shV cells,that is to say,DDX1 knockdown reduced the cell migration of NB.With DDX1 knockdown,24-h inhibition rate of SK-N-BE (2)/shDDX1 cell was 1.93 times of SK-N-BE (2)/shV cell with 1.0 mg/L Doxorubicin,24 h inhibition rate of SK-N-BE(2)/shDDX1 cell was 1.38 times of SK-N-BE(2)/shV cell with 2.5 mg/L Cisplatin.DDX1 knockdown could increase the Doxorubicin and Cisplatin drug sensitivity to NB cells.Conclusion DDX1 knockdown can decrease the cell invasion,migration and resistance capability of NB and increase the Doxorubicin and Cisplatin drug sensitivity of NB cells.

Objective To investigate the effects of p38 MAPK inhibitor on glutamate (Glu), glutamine (Gln), taurine amino acid (Tau), glycine (Gly) and gamma aminobutyric acid (GABA) in hippocampus of rats with vascular dementia (VD).Methods Twenty-four healthy male SD rats were randomly divided into sham operation group, VD model group and inhibitor group. VD model was established by permanent ligation of bilateral carotid artery method, and the sham operation group stripping bilateral carotid artery but not ligation. Rats of the inhibitor group were injected p38 MAPK inhibitor SB202190 after the establishment of VD model. Morris water maze was used to evaluate the learning and memory function of rats. The samples of DG region of hippocampus were collected by microdialysis, and the contents of amino acids were detected. Results The learning and memory abilities were significantly better in sham operation group and p38 MAPK inhibitor group than those of VD model group. The latency time was significantly shorter in p38 MAPK group than that of VD model group. The time of locating the platform quadrant and the number of crossing the original platform were significantly higher in sham operation group and p38 MAPK inhibitor group than those of VD model group (P <0.05). Compared with sham group, the levels of Glu, Gln and Tau were significantly lower, and Gly and GABA were significantly higher, in VD group and p38 MAPK inhibitor group (P<0.05). Compared with VD group, Glu, Gln and Tau were significantly increased, Gly and GABA were significantly decreased in p38 MAPK inhibitor group (P<0.05). Conclusion p38 MAPK inhibitor has protective effect on VD hippocampal injury, which may be related to its ability to inhibit VD-induced abnormal secretion of amino acids and regulate the secretion of various amino acids.

Objective To investigate the effects on IL-6 and PGE2 expression in wear-particles-induced osteoblast cells by blocking calcium phosphatase (Cn)/ activated T nuclear factor (NFAT) pathway. Methods Fetal Sprague-Dawley rats were used in this study. Osteoblast were prepared from the calvariae of rats . Osteoblast cells were incubated in four group according to different supplementation:(1) neither Ti particles nor 11R-VIVIT (Control group), (2) only Ti particles (Ti group), (3) both Ti particles and 11R-VIVIT (Ti/VIVIT group), and (4) only 11R-VIVIT (VIVIT group). Cells were incubated for 96 hours and the expression of NFATc1 protein was detected by western blot. The expression of IL-6 and PGE2 in liquid supernatant of osteoblast were detected at 6, 24 and 96 hours by ELISA. Results The expression of NFATc1 in the Ti group was higher than that in the Control group (P < 0.01), but in Ti/VIVIT group that was significantly lower than in the titanium particle group (P < 0.01). The IL-6 and PGE2 expression in the supernatant of the Ti group were significantly increased than those in the control group (P < 0.05). The IL-6 and PGE2 in the Ti/VIVIT group were significantly lower than that in the Ti group (P < 0.05). Conclusions 11R-VIVIT peptide specific blockade of Cn/NFAT signaling pathway significantly inhibited IL-6 and PGE2 of osteoblast cells induced by titanium particles.

Objective To discuss the clinical application of CT-guided percutaneous puncture biopsy in diagnosing thyroid nodes. Methods A total of 65 patients with thyroid nodes were enrolled in this study. CT-guided percutaneous puncture biopsy of thyroid nodes was carried out in all 65 patients. The puncture biopsy results were compared with the postoperative pathologic findings. Results Successful puncturing of thyroid node was accomplished in all 65 patients. One patient developed subcutaneous hematoma. The coincidence rate between puncture biopsy results and postoperative pathologic findings was 93.8%(61/65). Five of 6 cases with thyroid cancer agreed with the pathologic diagnosis. Conclusion For the diagnosis of thyroid diseases, CT-guided percutaneous puncture biopsy is simple, safe and reliable, with higher success rate.