Adult ; Hearing Loss, Noise-Induced ; etiology ; Hearing Tests ; Humans ; Male ; Middle Aged ; Noise, Occupational ; adverse effects ; Young Adult

Objective To investigate the significance of combined detection of serum tumor markers in the diagnosis of lung cancer,and to select the most sensitive serum tumor markers.Methods Enzyme-linked immunosorbent assay was used to detect the serum tumor markers of 62 lung cancer patients and 62 healthy persons,who were neuron specific enolase enzyme (NES),carbohydrate antigen 125 (CA 125),cytokeratin 19 (CYFRA21-1) and carcinoembryonic antigen(CEA).Results The level of serum CEA,CA125,CYFRA21-1,and NES of the lung cancer group were all higher than those of the control group (all P ＜ 0.05).Among the four kinds of tumor markers,CA125 had the highest sensitivity(59.7％),which was followed by CEA(53.2％).The sensitivity of the four kinds of joint detection was 87.1％,the highest sensitivity of three markers joint detection was CEA + CA125 + CYFRA21-1 (87.1％),while that of the two kinds of joint detection was CEA + CA125 (75.8％).Conclusion There are high clinical significance in the diagnosis of lung cancer with four kinds of serum tumor markers,CEA + CA125 + CYFRA21-1 can be used as the best markers for joint detection of lung cancer with high sensitivity.

Adult ; Decompression Sickness ; Diving ; Humans ; Male ; Middle Aged ; Occupational Diseases

Plasma concentrations of immunoreactivc beta-endorphin in patients with NIDDM were measured by radioimmuno-assay. It was found that the plasma beta-endorphin levels decreased in 68 cases of NIDDM especially in those with long duration of illness and chronic complication. These results suggested that beta-endorphin may be related to diabetes and its chronic complication.

Immunoreactive beta-endorphin was measured by radioimmunoassay (RIA) in the pituitary, hypothalamus, pancreas and plasma of female diabetic rats induced by streptozotocin. In addition, pain threshold was determined. The results showed that the concentrations of beta-endorphin in pituitary, hypothalamus, pancreas and plasma began to decrease on the first month after being made diabetic. Then, the levels of beta-endorphin continued to decrease significantly as the course progressed, especially in pancreas and plasma. Diabetic rats consistently showed a decreased pain threshold after 4 weeks. These results suggested that the decrease of beta-endorphin may be related to the course of diabetes and pain threshold.

Objective To investigate the expression change of receptor activator of NF ?B ligand (RANKL) and osteoprotegerin (OPG) mRNA in rat alveolar bone and the possible mechanism of alveolar bone resorption under traumatic occlusion. Methods Thirty SD rats weighed 270g?20g were used and divided into 6 groups, of which one group was as control. A square wire thickened about 1mm was bonded with Super bond composite resin on to the occlusal surface of left upper first molar of the rats in experiment groups. The animals were executed after 1,3,7,14,28 days. The left jaw were processed for the study of the expression of RANKL and OPG mRNA with RT PCR. Results Expression of RANKL and OPG mRNA in alveolar bone was significantly different between experiment and control groups. During occlusal trauma, expression of RANKL and OPG mRNA enhanced in 1 day group. The ratio of RANKL/OPG mRNA expression raised in 1、14 and 28 day groups. Conclusion The ratio of RANKL/OPG mRNA expression changed during occlusion trauma. RANKL and OPG might be involved in the restructure of periodontal tissue after traumatic occlusion

Objective To establish a method for limit test of camphor in Shujin Huoxue pills. Methods A DB-WAX (30 m×0. 32 mm,0. 25 μm) capillary column was used with a programmed temperature. Results The linear range of camphor was 1. 05-210. 00 μg·mL-1(r=1. 0). The average recovery was 101. 7%(n=9, RSD=1. 2%). Conclusion The proposed method is simple, sensitive, accurate and reproducible, which is suitable for quality control of Shujin Huoxue Pills.

Objective:To understand the recognition status of cancer pain in basic medical staff from small towns to provide the basis for the improvement of cancer pain management in these areas. Methods:The medical staff of Hengjiang Town and subordinate villages was selected. The study area is situated in southwest China. Centralized questionnaires regarding cancer pain were collected and analyzed. A program and education of cancer pain were provided for these medical workers. Results: The medical staff from Hengjiang asserted that only 17%of cancer pain patients receive treatments. Approximately 70%of the medical staff did not consider the popularization and explanation of cancer pain treatment in their patients. Approximately 64%of the medical staff was not familiar with standardized cancer pain control, 87%did not believe that narcotics could suffice the need of patients, and 44%did not participate in the training for cancer pain control. Conclusion: The medical staff in Hengjiang possesses less knowledge on the importance of cancer pain. Hence, further training is necessary. The specific management of cancer pain as a part of community chronic diseases is mandatory.

Anthracyclines, which include doxorubicin, epirubicin, daunorubicin, and aclarubicin, are widely used chemotherapeu-tic agents for treating hematologic and solid tumors, such as acute leukemia, lymphoma, breast cancer, gastric cancer, soft tissue sarco-mas, and ovarian cancer. Anthracyclines can be combined with other chemotherapeutics and molecular targeted drugs for cancer treat-ment. The combination of anthracyclines with other chemotherapeutic drugs is usually the standard of first-line treatment. Anthracy-clines are efficacious and potent agents with broad antitumor effects. However, these drugs may cause adverse reactions, such as hair loss, myelotoxicity, and cardiotoxicity. Hematopoietic stimulating factors, such as granulocyte colony-stimulating factor, erythropoietin, and thrombopoietin, can be used to control myelotoxicity. However, cardiotoxicity is the most serious anthracycline side effect. Clinical study results and practical observations indicate that the anthracycline cardiotoxicity is usually progressive and irreversible, especially after the first use of the drug, which may particularly cause heart damage. Therefore, the early detection and prevention of anthracy-cline-induced cardiotoxicity are important and have already gained considerable attention in clinical applications. Relevant experts from the China Society of Clinical Oncology and Hematology Branch of the Chinese Medical Association prepared the guidelines for the pre-vention and cure of anthracycline-induced cardiotoxicity in 2013. The authors reviewed the effective drugs currently used to prevent and cure anthracycline cardiotoxicity.

Background Tumstatin is the most active endogenous angiogenesis inhibitor,which has a marked inhibitory effect on pathological neovascularization,and Tum5 is an angiogenesis inhibitors fragment of fulllength tumstatin.Objective This study was to investigate the effects of adenovirus-mediated overexpression of recombinant Tum5 gene on the proliferation,migration and tube formation of human umbilical vein endothelial cells (HUVECs) in physiological status.Methods The empty adenoviral vector expressing green fluorescent protein (rAd-GFP) and the viral vector expressing recombinant Tum5 gene were constructed.The HUVECs cultured in RPMI1640 medium were divided into normal control group,empty vector group (rAd-GFP group) and Tum5 gene infection group (rAd-GFP-Tum5 group).The rAd-GFP and rAd-GFP-Tum5 adenoviral particles at the density of 1 × 1010/ml were added into the medium to infect the cells for 48 hours.The proliferation of the cells was assayed at 24,48 and 72 hours by cell counting kit-8 (CCK-8) to evaluate the proliferative rate;the migration number of the cells was detected at 48 hours after infection by Transwell chamber;the tube formation number of the cells were detected by Matrigel method.The concentration of vascular endothelial growth factor (VEGF) in cell supernatants was assayed by ELISA at 24,48,and 72 hours following adenoviral infection.Results The cultured cells showed green fluorescence in the rAd-GFP group and rAd-GFP-Tum5 group under the inverted fluorescence microscope,and the infection efficiency of rAd-GFP and rAd-GFP-Tum5 was 55.13％ and 50.31％,respectively.No significant difference was found in cell proliferative rate among normal control group,rAd-GFP group and rAd-GFP-Tum5 group both at 24 and 48 hours after infection (both at P＞0.05),and the cell proliferative rate was significantly lower in the rAd-GFP-Tum5 group than that in the normal control group and rAd-GFP group at 72 hours after infection (both at P＜0.01).The migration number of the cells at 48 hours after infection was 2 260.25-±930.44,2 370.00±441.06 and 723.75± 363.80 in the normal control group,rAd-GFP group and rAd-GFP-Tum5 group,showing a significant difference among the groups (F =8.524,P =0.008),and the migrated cells were evidently decreased in the rAd-GFP-Tum5 group compared with the rAd-GFP group and the normal control group (both at P＜ 0.01).The tube number at 48 hours after infection was 95.67±5.86,88.00±4.58 and 20.67±3.51 in the normal control group,rAd-GFP group and rAdGFP-Tum5 group,showing a significant difference among the groups (F=226.498,P＜0.01),and the tube number in the rAd-GFP-Tum5 group was significantly reduced in comparison with the normal control group and rAd-GFP group (both at P＜ 0.01).The considerably differences in VEGF concentration in the cell supernatants were found in different groups and various time points (Fgroup =73.260,P＜0.01;Ftime =73.477,P＜0.01),and VEGF concentration in the cell supernatants was significantly decreased in the rAd-GFP-Tum5 group compared with the rAd-GFP group at both 48 hours and 72 hours (both at P＜0.01).Conclusions The overexpression of the recombinant Tum5 can inhibit the proliferation,migration and tube formation of the HUVECs in physiological status,which may be associated with Tum-5-mediated down-regulation of VEGF protein in the cell supernatant.