Humans ; Mining ; Noise, Occupational ; statistics & numerical data ; Occupational Exposure ; statistics & numerical data ; Work Schedule Tolerance

Objective　 To study the postprandial lipid metabolism in patients with coronary heart disease.　Methods　11 CHD cases as CHD group and 15 normal as control group were selected to undergo oral fat load test. Blood samples were obtained before test and 2，4,6 and 8 hours after test. Serum TG, TC, LDL-C,HDL-C, LPO and LDL-LPO-C were calculated.　Results　1.Preprandial TG, LDL-C, LPO and LDL-LPO-C in CHD group were significantly higher than that of control group. 2. Postprandial TG, LPO, LDL-LPO-C in CHD group were significantly higher than that of control group. Postprandial HDL-C in CHD group were significantly lower than control group. 3. Postprandial TG (8h), LDL-LPO-C in CHD group were significantly higher than in the preprandial. Postprandial LDL-LPO-C in control group was significantly higher than preprandial. Conclusions 1. Postprandial high-lipemia and dyslipemia was obvious in CHD group. 2. Postprandial high-lipemia was closely related to the development of CHD. 3. Postprandial LDL-LPO-C in CHD group increased significantly and LDL-C sensitivity to oxidative intensified with postprandial time. 4. Postprandial LPO in CHD group increased significantly.

Objective To study the effects of metallothionein(MT) egg-milk power on excluding lead in vivo in saturnic rats.Methods A total of 60 Wistar rats were randomly divided into four groups: control(n=20),black control(n=10) and lead-treated groups(n=30).After the rats in lead-treated group were treated with 0.2% lead acetate daily for three weeks,they were randomly divided into two groups: lead-treated group(n=10) and MT egg-milk power treated group(n=20).The rats in the last group were treated with MT egg-milk power for three weeks.At the end of the experiment,samples of whole blood,liver,kidney,brain,femur,faeces and urine were collected for lead detection by atomic absorption spectroscopy.Results As compared with controls,the lead content of samples were significantly elevated in lead-treated rats(P

AIM:To investigate the expression and clinical significance of PAK4 in the cell lines and tissues of non-small cell lung cancer (NSCLC).METHODS:PAK4 expression in human bronchial epithelial (HBE) cells, NSCLC cell lines, NSCLC tissues and adjacent non-tumor tissues were assessed by immunohistochemistry, real-time PCR and Western blot.Prognostic value of PAK4 expression was evaluated by Kaplan-Meier analysis and Cox regression.RE-SULTS:PAK4 was over-expressed in the NSCLC cell lines at both mRNA and protein levels compared with HBE cells ( P<0.05).PAK4 was over-expressed in the NSCLC tissues at both mRNA and protein levels compared with adjacent non-tumor tissues (P<0.05).PAK4 was over-expressed in the metastatic NSCLC tissues compared with the primary NSCLC tissues (P<0.05).Higher PAK4 staining scores were positively correlated with differentiation, lymph node metastasis, distant metastasis, and clinical stage.Kaplan-Meier analysis and log-rank test showed that overall survival was significantly different between the patients with up-regulated PAK4 and the patients with down-regulated PAK4 ( P<0.05) .PAK4 over-expression was associated with NSCLC progression.CONCLUSION:Increased PAK4 expression was associated with tumor invasion, metastasis and prognosis in the patients with NSCLC.PAK4 is an important prognostic marker and potential ther-apeutic target in NSCLC.

Abstract: Superior mesenteric veinous thrombosis (SMVT) is a rare complication that often occurs in conjunction with intra-abdominal diseases such as diverticulitis, appendicitis, inflammatory bowel disease, etc. Its clinical symptoms are non-specific and include fevers, abdominal pain; it has no specific symptoms, and the diagnosis depends on clinical laboratory tests and imaging studies. The occurrence of superior mesenteric veinous thrombophlebitis is related to septic phlebitis caused by the sloughing of the embolus containing bacteria into the portal vein with blood flow. Due to the nonspecific clinical features of this disease, diagnosing it based on clinical characteristics and microbiological aspects is a challenge. A case of superior mesenteric veinous septic thrombophlebitis caused by Bacteroides fragilis infection is reported and to provide a reference for the diagnosis and treatment of such diseases. The patient was a 34-year-old man who was admitted the hospital with intermittent abdominal pain and fever. Computed tomography (CT) showed partial thrombosis of the superior mesenteric vein, colonoscopy revealed diverticulitis in the ileoceca, and the blood culture grew Bacteroides fragilis. The patient was treated with anti-infection (ceftazidime 2.0 g q12h intravenous infusion for 11 days; metronidazole 0.5 g, q8h intravenous infusion for 3 days) and anticoagulation (rivaroxaban 20 mg qd orally for 8 days. On the 11th day of hospitalization, the patient's condition improved, and he was discharged. In this case, for patients with fever and abdominal pain, superior mesenteric venous thrombophlebitis should be included in the differential diagnosis. Through auxiliary examination, blood sample culture and other technologies, clear diagnosis should be made in time to improve patient outcomes.

ObjectiveTostudytheinhibitioneffectof c-mycASODN(antisense oligodeoxynucleotide) and 5-FU (5-fluorouracil) on the expression of c-myc gene and the proliferation of human hepatomacellsHEPG-2. MethodsAfter treatedbyliposomemediatedc-mycantisense phosphorothioate oligodeoxynucleotide (APSODN) and 5-FU, the growth inhibition rate was detected by MTT assay, the expression of c-myc mRNA was detected by RT-PCR and immunohistocehemical methods HEPG-2cells. The cell cycle was analyzed by flow cytometric analysis. The morphological changes were observed by fluorescence staining and cellular genome electrophoresis. ResultsAfter sealing c-myc gene with ASODN,the growth of cells was repressed and the effect was time-dependent and dose-dependent ( P = 0. 02 ). The ability of proliferation decreased, the expression of c-myc gene was inhibited on transcription and translation levels; 5-FU can induce apoptosis of hepatoma cells HEPG-2 dramatically with the dose of 10 μ mol/L, when treated by both c-myc ASODN and 5-FU, HEPG-2 cells was induced apoptosis in a cooperative style ( P =0. 01 ).ConclusionsThe liposome mediated c-myc (APSODN) and 5-FU can inhibit the proliferation of HEPG-2 cells by inhibiting the expression of c-myc gene and can induce apoptosis of hepatoma cells HEPG-2 in a cooperative style. c-myc ( APSODN ) can increase the sensitivity of 5-FU to hepatoma cells and decrease the effective concentration of 5-FU.

AIM:To investigate the effect of oleuropein on interleukin-1β( IL-1β)-induced SD rat articular chondrocytes .METHODS:The SD rat articular chondrocytes were isolated by 2 step enzyme digestions .The chondrocytes were cultured in vitro.Inverted microscopic observation was performed during the culture .Alcian blue staining and type II collagen immunohistochemical staining were used to identify the chondrocytes .The effects of oleuropein on the viability of chondrocytes were determined by CCK-8 assay.The cells in 3rd passage were pretreated with oleuropein at 10, 50 or 100 μmol/L and subsequently stimulated with IL-1βat 10 μg/L for 24 h.Production of prostaglandin E 2 ( PGE2 ) and ni-tric oxide (NO) were evaluated by the Griess reaction and an enzyme linked immunosorbent assay (ELISA).The mRNA expression of matrix metalloproteinase ( MMP)-1 and MMP-13 was measured by real-time PCR.The protein levels of in-ducible nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2) and nuclear factor-kappa B (NF-κB) were detected by Western blotting .RESULTS:The cell viability of chondrocytes was not significantly impaired by treating with oleuropein at concentration of 10, 50 or 100μmol/L for 24 h compared with control group .Pretreatment with oleuropein significantly in-hibited the production of PGE 2 and NO induced by IL-1β.Oleuropein also significantly decreased the IL-1β-stimulated MMP-1 and MMP-13 mRNA expression in articular chondrocytes .Pretreatment with oleuropein inhibited the IL-1β-media-ted activation of NF-κB by suppressing the degradation of its inhibitory protein IκBαin the cytoplasm .CONCLUSION:Oleuropein inhibits IL-1β-induced inflammatory gene expression by suppressing NF-κB activation at the transcriptional le-vel, suggesting a new mechanism for the anti-inflammatory effects of oleuropein as a novel agent on treating with osteoarthri-tis.

Adult ; Aged ; Breast Neoplasms ; genetics ; metabolism ; pathology ; surgery ; Female ; Gene Amplification ; Genital Neoplasms, Male ; genetics ; metabolism ; pathology ; surgery ; Humans ; Male ; Middle Aged ; Paget Disease, Extramammary ; genetics ; metabolism ; pathology ; surgery ; Paget's Disease, Mammary ; genetics ; metabolism ; pathology ; surgery ; Penile Neoplasms ; genetics ; metabolism ; pathology ; surgery ; Receptor, ErbB-2 ; genetics ; metabolism ; Scrotum ; Vulvar Neoplasms ; genetics ; metabolism ; pathology ; surgery

BACKGROUND: Studies regarding synthesizing composite bone repair materials with organic macromolecules as mineralizers template are the hot research spot. However, reports concerning using agar as bone repair materials are few. OBJECTIVE: To synthesize a novel agar-hydroxyapatite composite material, and to evaluate its physical and chemical properties as well as cytocompatibility.METHODS: ①A certain amount of the non-nano-hydroxyapatite in hydrochloric acid solution was added into a certain amount of agar sol, and the reaction system was adjusted with PH value of 7-8. And then the precipitate was lyophilized to obtain the composite of agar-hydroxyapatite.②The third generation of rat bone marrow stromal cell (BMSC) was co-cultured with agar-hydroxyapatite. And the growth of cells was observed at days 1, 3 and 5 after culture. RESULTS AND CONCLUSION: The results of X-ray diffraction patterns, Fourier transform infrared spectrometer (FTIR), thermal analyzer, transmission electron microscope, and scanning electron microscope showed that agar could manipulate the growth of hydroxyapatite, and hydroxyapatite nanocrystals was equably formed on the agar-fibers with high porosity. The BMSC grew well in the composite and form a clear cytoskeletal at days 3 and 5 after culture. The results reveal that agar-hydroxyapatite composite has good physical and chemical properties and cytocompatibility.

This article started from the characteristics of translational medicine and Chinese medicine , analyzed the differences between the development of translational medicine and Chinese medicine , and indicated that the path and mode in which Chinese medicine develops translational medicine should adapt to characteristics of Chinese medicine . According to the translational medicine path of modern medicine , this article raised several translational paths and a multidimensional-shape translational mode for Chinese medicine , and discussed the enlightenment for research of the National Clinical Research Base of Chinese Medicine .