Acrylonitrile ; poisoning ; Adult ; Female ; Humans ; Male ; Middle Aged ; Occupational Diseases ; therapy

Recently,the progress in employing transplanting stem cells to cure injured retina is very fast and has been continuously yielding exciting results.Various sources are used in the studies,including retina-derived cells such as M?ller cells and ciliary body cells,and non-retina-derived cells such as embryonic stem cells and brain-derived stem cells.This review briefly discusses the recent progress of these studies.

Objective To investigate the effect of radiofrequency on sodium/iodide symporter expression in thyroid cancer cell. Methods 29 thyroid cancer patients with low or no expression of sodium/iodide symporter underwent radiofrequency ablation combining 131I radiotherapy. Whole-body nuclide imaging and serum Ig were examined before and after radiofrequency ablation. Results Whole-body nuclide imaging showed that there were 4 cases (4/29) positive before radiofrequency ablation, 19 cases (19/29) positive two weeks after radiofrequency ablation and 12 cases (12/29) positive four weeks after radiofrequency ablation. Four weeks after radiofrequency ablation, 4 cases showed an increased serum Ig level, 17 cases with a decreased serum Ig level and 17 cases without any change in serum Ig level. The total effective cases were 25 (25/29) and 15 cases (15/29) were completely cured. Conclusion Radiofrequency ablation induces thyroid cancer cells without sodium/iodide symporter expression to resume iodine intake and thus increased clinical effect of 131I on undifferentiated thyroid cancer.

Objective To research the reasonable perfusion flow of cardiopulmonary bypass during aortic arch procedure of patients with acute type A aortic dissection.Methods Forty patients suffered from acute Stanford type A aortic dissection had been divided into two groups randomly.Group A named traditional perfusion flow group,group B named modified perfusion flow group.Monitoring cerebral blood flow and cerebral tissue oxygen during deep hyperthermia circulatory arrest and antegrade aelective cerebral perfusion procedure by transcranial doppler(TCD) and near-infrared spectroscopy(NIRS).The concentration of S100 protein and lactic acid was measured at six time point.Results Statistical difference of mean blood flow velocity of MCA had been found between two group 3 min after total flow reperfusion.TOI was more tban 60％ during study in both of groups.S100 protein in group A was significantly higher than group B at T6,T7 and T8.Statistical difference of blood lactic concentration had been found between two groups,(4.88± 1.62) mmol/L in group A,(3.83± 1.48) mmol/L in group B,P ＜ 0.05.Safe consciousness time between two groups was difference,(7.36± 2.86) h in group A and (5.27± 3.11) h in group B,P ＜ 0.05.Conclusion Compared with the traditional perfusion flow,modified perfusion flow can provide sufficient cerebral perfusion and prevent the luxury perfusion.

Objective To investigate the effect of high mobility group box-1 protein (HMGB1) on immune function of peritoneal macrophages in mice. Methods The peritoneal macrophages were isolated from female BALBc mice in vitro. The macrophages were stimulated with different doses of HMGB1 (1, 10, 100, 1 000ng/ml) for 6 hours, or with 100ng/ml HMGB1 for different duration (0, 6, 12, 24, 48, 72 hours). The phagocytosis ability of macrophages was determined by the neutral red dye uptake assay and optical densities of samples were read at 540nm. The cytotoxicity to L1210 cells was measured with MTT assay and was expressed by absorbance at 570nm. The chemotaxis was assayed by using the Costar Transwell cell culture chamber inserts and the cells on the lower surface of the transwell membrane were fixed and counted. The cells were harvested at the indicated time points, fixed, and stained for indirect immunofluorescence, then the expressions of I-Ak MHC class Ⅱ alloantigen on macrophages were determined with flow cytometry. Results The effects of HMGB1 on phagocytic activities, cytotoxicity, chemotaxis and I-Ak antigen expression of macrophages were enhanced in a dose-dependent manner, starting at doses as low as 1ng/ml and with a maximal response at 100ng/ml (P

Natural Calculus Bovis,one of the precious traditional Chinese medicines,is the dried gallstone in bovine gallbladder,bile duct or hepatic duct.It is one of the essential components of the formulation of a variety of traditional Chinese medicines.Due to high price and rareness of natural Calculus Bovis,Chinese researchers have developed artificial Calculus Bovis,cultured Calculus Bovis and Calculus Bovis Sativus as substitutes of it.They are mainly composed of bilirubin,bile acids,amino acids and inorganic elements.Due to the co-existence of natural Calculus Bovisa and its substitutes in the market,and the complex composition of them,identification,quality control and material basis study of them are important issues in recent years.Currently,the quality control of them mainly focus on cholic acid and bilirubin.In order to fully solve the quality control problem of natural Calculus Bovis and its substitutes,researches on testing techniques of other bile acids or other components have already started.In this paper,research progress on the chemical compositions,quality control and the test technology of bilirubin,bile acids,amino acids and other components of Calculus Bovis are reviewed,in order to provide reference for further research of Calculus Bovis.

ObjectiveTo assesses the skeletal development of adolescent in Yantai area, and investigates the characteristics of the tendency of their skeletal development. MethodsTotally 1180 healthy adolescents ( 574 males and 606 females ) at 10 to 20 years of age living in Yantai area were randomly selected, and their left wrist were radiated at the posterior-anterior position. The bones at wrist were scored according to the Chinese Wrist Skeletal Development Standard CHN Method. The correlation among skeletal age, chronological age and the sex were analyzed. ResultsSkeletal age positively correlated with chronological age (male: r=0.943,females: r=0.942,totally: r=0.942). ConclusionThe skeletal development of adolescent in Yantai area has the characteristic of acceleration. So it is necessary to establish a new skeletal age standard for the skeletal development of adolescent.

Objective To testify the screening function of stachyose on soil bacteria by investigating the bacterial culture in ammonium stachyose medium. Methods The turbidimetry was used to determine the absorbance of microbial suspension at 600 nm per 2 h under the same initial concentration of the microbial suspension and to draw their growth curves. Results Most of soil bacteria utilized stachyose ineffectively, while only a few of them grown well in ammonium stachyose medium. Conclusion Since the major soil bacteria can not take stachyose fully as their energy resources, the species and quantity of rhizobacteria may decrease largely and only a few that utilized stachyose better can develop vigorously. Those rhizobateria with better utilization of stachyose may multiply so rapidly as potential ones in the rhizosphere of Rehmannia glutinosa that the disequilibrium of soil microorganism appears.

Objective To investigate the effects of total nutrient admixture (TNA) on the recovery of patients with gastric cancer after radical gastrectomy.Methods The clinical data of 50 patients with gastric cancer who were admitted to the Affiliated Hospital of Luzhou Medical College between March 2013 and March 2014 were retrospectively analyzed.Among 50 patients receiving radical gastrectomy,26 patients receiving TNA were allocated to the experimental group and 24 patients receiving conventional fluid infusion were allocated to the control group.Patients in the experimental group received the nutritional support therapy using TNA at preoperative day 5 and at postoperative days 1-5,and patients in the control group received the postoperative intravenous rehydration including water,glucose,electrolyte,vitamins and micro elements.The nutritional indexes [albumin (Alb),prealbumin,transferrin and hemoglobin (Hb)],time to anal exsufflation,incidence of complications (wound infection,anastomotic leakage,blooding and intestinal obstruction) and duration of hospital stay were observed before nutritional support therapy and at postoperative day 8.The count data were analyzed using the chi-square test.The chi-square value of correction for continuity was used when 1 ≤ minimum theoretical frequency ≤ 5.The measurement data with normal distribution were presented as (x) ±s and analyzed using the t test or repeated measures ANOVA.The ordinal data were analyzed by the analysis of variance.Results The Alb,prealbumin,transferrin and Hb in the experimental group were (38.6 ± 2.0) g/L,(281 ± 33) mg/L,(2.5 ± 0.9) g/L and (111 ± 20) g/L before nutritional support therapy and (38.2 ± 1.9) g/L,(277 ± 16) mg/L,(2.3 ± 1.1) g/L and (112 ± 37) g/L at postoperative day 8,respectivley.The Alb,prealbumin,transferrin and Hb in the control group were (38.3 ±2.4) g/L,(287 ± 34) mg/L,(2.4 ± 1.1) g/L and (107 ± 21) g/L before nutritional support therapy and (30.3 ±2.3) g/L,(190 ± 41) mg/L,(1.6 ± 0.3) g/L and (93 ± 22) g/L at postoperative day 8,respectivley.There were significant differences in the nutritional indexes at postoperative day 8 between the 2 groups (F =174.042,95.637,9.529,4.919,P ＜ 0.05).The time to anal exsufflation in the experimental group were (52 ± 11) hours,which was significantly different from (70 ± 12) hours in the control group (t =-5.176,P ＜ 0.05).The incidence of complications was 15.4％ (4/26) in the experimental group,which was significantly different from 58.3％ (14/24) in the control group (x2=6.460,P ＜0.05).Patients with complications in the 2 groups were cured by anti-infective or symptomatic treatment.The duration of hospital stay was (9 ± 3) days in the experimental group and (12 ± 4) days in the control group,with a significant difference between the 2 groups (t =-2.912,P ＜ 0.05).Conclusion TNA can improve the nutritional status of patients after radical gastrectomy in a short time.It could help patients to get through the perioperative period smoothly,and enhance the postoperative recovery.

Objective To study the detection rate of contrast-enhanced ultrasound (CEUS) with different perfusion methods on rabbit VX2 small hepatocellular carcinoma less than 10.0 mm. Methods VX2 tumor cells were inoculated into the subcutaneous tissue of New Zealand rabbit′s thigh. Then the plant tumor were cut into small blocks under sterile conditions and transplanted into hepatic parenchyma in 30 New Zealand rabbits. The contrast media was injected through peripheral vein by single and double perfusion methods. The detection rate of two methods were compared. Results There were 41 hepatocellular carcinoma lesions in the 30 rabbits. There were 15 lesions with size between 3.0 mm and 5.0 mm, and 26 lesions between 5.0 mm and 10.0 mm in diameter. On CEUS, the VX2 tumor presented fast-in and fast-out pattern. In arterial phase, the lesion was enhanced rapidly. In portal venous phase, contrast began to wash out from the carcinoma. In delay phase, the enhancement of lesion was signiifcantly lower than the surrounding normal liver parenchyma. A total of 32 lesions were detected by single perfusion method, including 7 lesions ranging 3.0-5.0 mm and 25 lesions ranging 5.0-10.0 mm. A total of 39 lesions were detected by double perfusion method, including 13 lesions ranging 3.0-5.0 mm and 26 lesions ranging 5.0-10.0 mm. The detection rate of micro-hepatocellular carcinoma by single and double perfusion method was 78% and 95% respectively. The difference was statistically signiifcant (χ2=5.150, P=0.023). The detection rate of 3.0-5.0 mm lesions by single and double perfusion method was 47%and 87%, respectively. The difference was statistically signiifcant ( χ2=5.400, P=0.025). The detection rate of 5.0-10.0 mm lesions by single and double perfusion method was 96% and 100%, respectively. There was no statistically signiifcant difference (χ2=1.020, P=0.500). Conclusion The double perfusion method greatly promotes the detection of micro hepatocellular carcinoma, especially for the lesions less than 5.0 mm in diameter.