Objective To study the adsorption ability of the chitosan and the chitosan film to Cd2+. Methods Under the given condition,different time and different temperature and different beginning concentration of Cd2+, the adsorption rate and capability of the chitosan and the chitosan film were studied. Results The chitosan (or chitosan film) could adsorb Cd2+ quickly at first,however,an hour later,the adsorption rate declined slowly. Adsorption rate increased as the temperature increases. There was significant connection between the beginning concentration of Cd2+ and the adsorption rate and capability of the chitosan(or chitosan film). The adsorption rate of the chitosan (or chitosan film) even reached above 80% when the beginning concentration of Cd2+ was no more than 20 mg/L, whereas the adsorption rate and capability of the chitosan (or chitosan film) declined slowly when enhanced the beginning concentration of Cd2+. The adsorption rate and capability of the chitosan (or chitosan film) obtained a maximum only when the beginning concentration of Cd2+ was about 10 mg/L. The adsorptive ability of the chitosan film to Cd2+ was stronger than that of chitosan under the same condition. Conclusion The biosorption of the chitosan (or chitosan film) to Cd2+ fits the Langmuir equation and the adsorbability to Cd2+ of the chitosan film is stronger compared with chitosanb.

Objective To understand the adsorption capability and kinetics of chitosan (CTS) for Pb(II) in water. Methods The spectrophotometry was used to explore the effects of time, temperature, pH value and ion intensity on the adsorption capability of CTS for lead. Results The adsorption speed was faster at the beginning, then to the balance status 80 minutes later. The adsorption rate increased as the temperature increased. pH value could influence the adsorption, the adsorption capacity reached to the maximum when the pH values were 3.6-4.6. The sodium chloride solution showed an inhibitory effect on the adsorption with a dose dependent manner. Conclusion The adsorption is influenced by the effects of time, temperature, pH value, and ion intensity. The apparent energy(?E) is 5.11 kJ/mol.

Objective To investigate the source of CD147 expressing cells in joint and its corelation with rheumatoid arthritis (RA),and to study the expression of CD147 on different cells of peripheral blood and joint fluid of RA patients and normal health controls.Methods The expression rate and intensity of CD147 on lymphocyte (CD3 +T),monocyte (CD14 + Mo) and neutrophils (N) of 10 active RA patients before and after treatment and 10 normal health controls′ peripheral blood and synovial fluid were studied by bicolor immunofluorescence flow cytometry.Results ① Compared with normal control,the expression intensity of CD147 on CD3 + T and CD14 + Mo were higher (P

Objective To observe the efficacy of montmorillonite combined with oxygen in the treatment of neonatal diaper dermatitis, and to provide the basis for clinical treatment. Methods Collected 100 cases of neonatal diaper dermatitis from January 2014 to January 2017 in our hospital. The patients were divided into observation group and control group according to the order of admission. After treatment, the observation group was given montmorillonite combined with oxygen therapy, the control group was given only oxygen treatment, compared the treatment effect of the two groups of patients. Results After treatment, the total effective rate of the observation group was 100％, the total effective rate of control group was 80％, there was significant difference between the two groups in the total effective rate of clinical treatment (P<0.05).The cure time was (116.20 ± 25.79) h in the observation group and (145.72 ± 24.88) h in the control group. The difference of the cure time between the two groups was statistically significant (P<0.05). In the observation group, the erythema was found in 42 children after treatment, and the area of erosion was obviously reduced before treatment, and the surface of the lesion was dry. After treatment for 5 days, 36 cases of mild to moderate diaper dermatitis were cured. After 7 days of treatment, children are cured. In the control group, 19 cases of mild diaper dermatitis were treated with erythema dermatitis . After treatment for 5 days, the area of hips in the 22 cases was smaller than that before treatment, and the lesion was dry. After 7 days, There was no significant improvement in erosion and or exudation. Conclusion Montmorillonite powder combined with oxygen treatment of neonatal diaper dermatitis is a significant effect, is the ideal treatment for neonatal diaper dermatitis.

Objective To optimize supercritical extraction technique from four medicinal materials, which are the part components in the recipe of Keganliyan Oral Liquor and are extracted traditionally for essential oils. Methods Extraction ratio and menthol extraction quantity were taken as evaluated indexes. Supercritical extraction technique was researched with orthogonal tests, gas chromatography, and SAS statistic. Results Within the test levels, temperature and time showed evident effect on extraction ratio and menthol extraction quantity, while pressure did not show any evident effect on them、 The preferable technique to extraction ratio is temperature at 55 ℃, time for 120 min, and extracted pressure at 27 MPa; and the preferable technique to menthol extraction quantity is temperature at 45 ℃, time for 120 min, and extracted pressure at 22 MPa. Conclusion The optimized supercritical extraction technique for Keganliyan Oral Liquor is feasible.

To establish a detection method of oncolytic adenovirus/p53 and standard of quality control, human telomerase reverse transcriptase (hTERT) promoter, CMV fusion promoter containing hypoxia reaction element (HRE) and p53 gene were identified by vector DNA restriction enzyme digestion and PCR analysis. The result conformed that all modified regions were in consistent with theoretical ones. Particle number was 2.0 x 10(11) mL(-1) determined by UV (A260). Infectious titer was 5.0 x 10(10) IU mL(-1) analyzed by TCID50. In vitro p53 gene expression in human lung cancer cell H1299 was determined by ELISA, and A450 ratio of nucleoprotein in virus infection group to control group was 5.2. Antitumor potency was evaluated by cytotoxicity assay using human lung cancer cell A549, and the MOI(IC50) of this gene therapy preparation was 1.0. The tumor cells targeted replication ability of recombinant virus was determined by TCID50 titer ratio of filial generation virus between human lung cancer cell A549 and human diploid epidermal fibrolast BJ cells after infected by virus with same MOI. TCID50 titer ratio of tumor cell infection group to normal cell infection control group was 398. The IE-HPLC purity of virus was 99.5%. There was less than 1 copy of wild type adenovirus within 1 x 10(7) VP recombinant virus. Other quality control items were complied with corresponding requirements in the guidance for human somatic cell therapy and gene therapy and Chinese pharmacopeia volume III. The detection method of oncolytic adenovirus/p53 was successfully established for quality control standard. The study also provided reference for quality control of other oncolytic viral vector products.

Objective: To evaluate the quality status of recombinant human interferon α2a injections and find out some quality problems. Methods:The statutory testing methods combining with the exploratory studies were used to examine the samples, and the quality status of recombinant human interferon α2a injections was evaluated by statistical analysis of the results. Results: All 28 bat-ches of the injections were qualified using the statutory testing methods. The exploratory studies showed that if the specific activity was determined, the qualified rate was only 87. 0%. All 7 batches of drug substances were qualified using the statutory testing methods. The exploratory studies showed that if the related protein was determined, the qualified rate was 57. 1%. Conclusion:At present the quality of recombinant human interferonα2a injections is generally good. The current standards are feasible;however, improvement is still needed. Specific activity determination should be supplemented the standards for drug products and related protein determination should be supplemented the standards of drug substances.

Objective To investigate the neuroprotective effect of lateral intracerebroventricular injection of Apelin-13 on the YAP expression and the cerebral ischemia/reperfusion (I/R) injury in Wistar rats.Methods Healthy adult male Wistar rats were randomly divided into the sham group, cerebral I/R group and Apelin-13 treatment group.The middle cerebral artery occlusion model was established with ischemia for 1 hour and reperfusion for 24 hours after restricting food and water intake for 12 hours.Apelin-13 was injected into rats' lateral ventricles of Apelin-13 treatment group after reperfusion.Neural function defects was assessed.The volume of infarction was evaluated by TTC staining.The expression levels of YAP were detected by western blot.Results Compared with the cerebral I/R group,the rats in the Apelin-13 treatment group had abetter neurologic score ((2.67±0.33) vs (1.67±0.33) , P＜0.05), the infarction volume was decreased ((30.60± 1.42) ％ vs (23.70± 2.20) ％,P＜0.05) , and YAP expression level was increased in each part of the cerebral tissue(P＜0.05).Conclusion Apelin-13 has a neuroprotective effect,which plays the therapeutic effect by regulating the expression of YAP on cerebral ischemia/ reperfusion (I/R) injury in Wistar rats.

Objective To investigate the clinical significance of measuring resting energy expenditure (REE) for guiding an accurate nutritional support in elderly bedridden patients with nasal feeding.Methods The REE of 32 elderly bedridden patients with nasal feeding was assessed by using the Cosmed K4b2 portable telemetric gas analysis system.The waist-hip ratio, serum levels of albumin, transferrin, prealbumin and retinol-binding protein were determined to assess comprehensive nutrition status.The energy intakes were calculated, and the correlation of REE and the difference between the energy intakes and consumption with nutritional index were analyzed.Results The resting energy expendture was lower in the patients with waist-hip ratio≥0.95 than in patients with waist-hip ratio ＜0.95 (t=3.622, P＜0.01).The waist-hip ratio was reduced and serum albumin and transferrin levels were decreased along with the increase of REE in elderly patients (r=-0.55,-0.36 and-0.593, respectively, P=0.001, 0.043, ＜0.001).The difference between the energy intake and expenditure was higher in patients with waist-hip ratio≥0.95 than those with waist-hip ratio＜0.95 (t =5.643, P＜ 0.001).Serum albumin, prealbumin, transferrin and retinol-binding protein levels were increased along with the increase of the difference between the energy intake and expenditure, which showed the positive correlations (r=0.525, 0.409, 0.624, 0.414, respectively,P=0.002, 0.02, ＜0.001, 0.019).Conclusions Precise determination of REE and energy intake guided by REE are the important guarantees for the reasonable nutrition support in the elderly.

This study was aimed to explore differential effects of various sections of the velvet antler on promoting cell proliferation in vitro. The NRK-49F cell line from rat kidney fibroblasts was used as the cell model. The cell proliferation rates of the water extracts from the upper, middle and lower section of fresh velvet antler were measured by the MTT method. BCA method was used in the detection of protein concentration. The SDS-PAGE method was used in the analysis of difference composition of the sample protein. The results showed that soluble protein content of the upper, middle and lower section were 17.89, 16.04 and 6.89 mg·mL-1, respectively. From the top to the base, the soluble protein content of velvet antler was decreased. After 24 h treatment, when the protein concentration of the upper and middle section samples of the velvet antler were 800 μg·mL-1 and 600 μg·mL-1, the cell proliferation promoting rates reached the maximum, which were 66.76% and 64.36%, respectively. And when the lower section sample of the velvet antler was 1 000 μg·mL-1, the cell proliferation promoting rates reached the maximum, which was 58.87%. After 48 h treatment, when the upper and middle section samples of the velvet antler were 800μg·mL-1, the cell proliferation promoting rates reached the maximum, which were 219.56% and 215.86%, respectively. And when the lower section sample of the velvet antler was 1 000 μg·mL-1, the cell proliferation promoting rates reached the maximum, which was 169.20%. The velvet antler on the proliferation of cells was much better than the 10% fetal bovine serum. The figure of SDS-PAGE showed the slight difference in the protein composition of three part of the velvet antler. It was concluded that all samples had promoting effects on cell proliferation with concentration-depen-dent, and the main protein in different part of the velvet antler had minor differences.