Objective To investigate the clinical efficacy of piracetam combined with edaravone in the treatment of patients with acute cerebral infarction.Methods 120 patients with acute cerebral infarction were selected,and they were randomly divided into control group and observation group according to the digital table,60 cases in each group.The patients in both two groups were treated with mannitol to reduce intracranial pressure,aspirin antiplatelet aggregation,combined with basic nutritional support,active prevention and treatment of complications.The control group was intravenously given piracetam.On this basis,the observation group was intravenously given edaravone injection.Both two groups were treated for 14 days.The clinical curative effect,neurological deficit and self-care ability score before and after treatment were observed,and the indicators of hemorheology before and after treatment were observed.Results Mter treatment,the neurological deficit and self-care ability scores of the two groups were significantly improved(t =3.43,4.12,5.67,6.89,all P ＜ 0.05),the improvements of the observation group were significantly better than those of the control group(t =2.10,4.21,all P ＜ 0.05).The total effective rate of the observation group was 85.00％,which was higher than 70.00％ of the control group,the difference was statistically significant (x2 =4.11,P ＜ 0.05).After treatment,the indicators of hemorheology of the two groups were significantly improved (t =1.43,2.98,2.32,4.56,1.67,2.11,1.46,1.98,all P ＜ 0.05),and the improvements of the observation group were significantly better than those of the control group (t =1.46,2.32,1.67,1.39,all P ＜ 0.05).Conclusion Piracetam combined with edaravone can significantly improve the neurological function,cognitive function and hemorheology of patients with acute cerebral infarction.

Objective To study the clinical curative effect and complication of methylprednisolone in the treatment of patients with acute myelitis.Methods 42 patients with acute myelitis were selected and randomly divid-ed into two groups,21 cases in each group.The control group was treated with dexamethasone,the observation group was treated with methylprednisolone.After treatment,the clinical parameters and effect of the two groups were com-pared.Results The total effective rate of the observation group was 85.7%,which was higher than 42.9% of the control group (χ2 =2.41,P <0.05).The improvement of muscle strength,restore micturition,walk on their own time in the observation group were (10.1 ±4.1)d,(7.1 ±3.4)d,(16.1 ±4.2)d,respectively,which were better than (23.4 ±7.3)d,(10.2 ±3.1)d,(22.6 ±7.3)d in the control group(t =3.15,1.69,1.97,all P <0.05).The total incidence of gastrointestinal reaction and complication rates of the observation group was 4.8%,which was lower than 19.0% of the control group (χ2 =6.37,P <0.05).Conclusion In treatment of patients with acute myelitis,methyl-prednisolone has good effect,which should be used in clinical practice.

OBJECTIVETo investigate the influence of cross-linking agents genipin and glutaraldehyde on the composite bio-sponge.

METHODSThe composite bio-sponge was prepared with the technology of lyophilization. The degree of cross linking was determined using absorptiometry of trinitrobenzenesulfonic acid; the cytotoxicity was tested by MTT assay; the degradation rate in vitro was valuated by lysozyme degradation.

RESULTS(1) The degree of cross linking of composite bio-sponge crosslinked using genipin and glutaraldehyde increased with the crosslinking time, and reached 26.43% and 54.63% respectively after crosslinking 3 d. (2) The water absorption rate of composite bio-sponge crosslinked using genipin was better than that of crosslinked using glutaraldehyde. (3) In the initial stage of cells incubation, all extracts of composite bio-sponges crosslinked using genipin and glutaraldehyde inhibited the growth of the cells, and the inhibition decreased with the incubation time; but the cytotoxicity of composite bio-sponge crosslinked using glutaraldehyde was higher than that of crosslinked using genipin. (4) After soaking in saline for 4 weeks, the degradation rate of composite bio-sponge crosslinked using genipin or glutaraldehyde was 32.1%, 28.4%, respectively; however, after soaking in saline containing lysozyme for 40 h, the degradation rate of composite bio-sponge was 36.7%, 31.2%, respectively.

CONCLUSIONCompared with the composite bio-sponge crosslinked using glutaraldehyde, the degree of cross linking and the cytotoxicity of the composite bio-sponge crosslinked using genipin decreased; however, the water absorption rate and the degradation rate increased.

Biocompatible Materials ; Cross-Linking Reagents ; chemistry ; Glutaral ; chemistry ; Iridoids ; chemistry ; Materials Testing