Objective To observe absorption of exogenous nerve growth factor(NGF) between normal newborn rats and newborn rats with hypoxidosis.Methods Thirty-two healthy newborn rats(7 days of age) were divided into experiment group and normal group.Experiment rats were made into hypoxic-ischemic brain damage(HIBD) model.NGF labeled with()~(125)I or()~(125)I was injected into the rats abdominant.All of the rats were killed and brain was removed after 30 minutes.The brain was dissected into basal forebrain,forehead cortex,hippocampus,thalamus,cerebellum,smellorb,pituitary tissue samples were assayed for radioactivity in a two-channel gamma counter.Results Absorptions of two groups(()~(125)I-NGF) were significantly higher than those of()~(125)I in basal forebrain,cortex,hippocampus,cerebellum.Absorptions of hypoxic group were significantly higher than those of control group in cortex,hippocampus,cerebellum.Conclusions NGF can penertrate blood brain barrier of newborn rats into brain regions by means of peripheral administration.Early application of NGF for treating hypoxic-ischemic encephalopathy(HIE) is feasible.

Objective To explore mechanism of action of rhubarb on intrahepatic cholestasis in infantile rats.Methods Ninety Sprague-Dawley(SD)infantile rats were randomly divided into 5 groups:treatment group of rhubarb,untreated group,treatment control group 1 of ursodeoxychlic acid(UDCA),treatment control group 2 of UDCA and deltasone,and control group not treated with ?-naphthyl isothiocyanate(ANIT)and any other treatments.Jaundice model of intrahepatic cholestasis was established in infantile rats by ANIT.At the time of the 2nd,3rd,and 4th week,the concentrations of serum total bilirubin(TB),direct bilirubin(DB),ALT,alkaline phosphatase(ALP),total bile acid(TBA)and TBA were assessed by automatic biochemical analyzer.The concentrations of nitrogen monoxide(NO),maleic dialdehyde(MDA)and the ability of total antioxidation(T-AOC)in liver tissues were measured.Results It was demonstrated that the animal model of hepatic jaundice with cholestasis was successfully established.The levels of serum DB,TB,ALP,ALT and TBA were significantly lower in the treatment group of rhubarb compared with those in the untreated group(Pa

Integrative Medicine ; education

Objective:To investigate the changes of thymic lymphocyte procyanidin(TSLP)and interleukin-4(IL-4),interleukin-10(IL-10)and interleukin-13(IL-13)in the lung tissue of young rats infected with respiratory syncytial virus,and to investigate the changes of TSLP and Th2 Correlation.Methods:18 Wistar rats were randomly divided into RSV infection group and normal group,9 rats in each group.Application of RSV virus droplets nasal modeling,saline diarrhea as a control.The lung tissue of rats was taken for pathological observation;the load of syncytial virus at different time points and the expression of TSLP in lung tissue were detected by Real-time quantitative polymerase chain reaction(q-PCR);at the same time,the expression of TSLP at the protein level was detected by Western blot.The levels of cytokines IL-4,IL-10 and IL-13 in serum were measured by enzyme-linked immunosorbent assay(ELISA).And the relationship between TSLP and IL-4,IL-10 and IL-13 was analyzed by Spearman correlation.Results:Compared with the normal control group,the rats in the model group showed symptoms such as poor mental state,rough hair,decreased activity and shortness of breath after intranasal infection,and the symptoms were aggravated.Pathological observation showed that the alveolar wall was thickened in the model group,and a large number of lymphocytes,plasma cells,eosinophil infiltration.q-PCR was used to detect the syncytial virus load in model group,and reached the peak at about 5 days,then decreased gradually.RSV infection increased the secretion of TSLP in rat respiratory tract.q-PCR and Western blot showed that TSLP concentration in model group was higher than that in control group(P<0.05).The levels of IL-4,IL-10 and IL-13 in the serum of the model group were higher than those in the control group(P<0.05).Spearman correlation analysis showed that TSLP was positively correlated with IL-4 and IL-10 expression in RSV model group,and there was no correlation between TSLP and IL-13 expression.Conclusion:RSV infection in rat lung tissue can induce increased expression of TSLP,while promoting the occurrence of Th2 type of inflammatory response and the expression of related cytokines,in order to further study of RSV infection caused by bronchiolitis and asthma and other respiratory diseases,the mechanism of action and clinical treatment laid the foundation.

Objective To study the validity and reliability of the simplified Chinese version of Loewenstein Occupational Therapy Cognitive Assessment (LOTCA). MethodsThe English version of LOTCA was translated into the simplified Chinese first and then translated back to English to ensure its reliability in Chinese version.The we recruited two groups of volunteers to participate in the study. One group consisted of 36 patients with brain disorders (patient group), The other group consisted of 43 subjects without neurological disorders (control group). All the subjects were assessed with LOTCA and Mini-Mental State Examination (MMSE) within one session and on different days, respectively by two independent raters. Scores of LOTCA and MMSE were analyzed with Spearman correlation coefficient to test the validity of LOTCA. Intra-class coefficients (ICCs) were used to examine the intra-rater and inter-rater reliability of LOTCA. And Mann-Whitney test of non-parameters analysis was used to detect the sensitivity of LOTCA. ResultsThere was high correlation between the scores of LOTCA and that of MMSE ( r =0.9852- 0.9939 ). ICCs of LOTCA were 0.9923( P

OBJECTIVETo evaluate the efficacy and safety of high dose dexamethasone combined with recombinant human thrombopoietin (rhTPO) in adults with severe newly diagnosed immune thrombocytopenia (ITP).

METHODSForty-eight adult patients with severe ITP were randomized into two groups, experimental group and control group. The patients in experimental group were given high-dose dexamethasone combined with rhTPO treatment, the patients in control group were given single high-dose dexamethasone treatment. Platelet count, platelet increase, as well as the overall response rate were strictly observed in the process. At the same time, the patient's drug tolerance and any adverse drug reactions were observed.

RESULTSThe platelet counts and platelet increase of the patients in experimental group were significantly higher than that in control group (P<0.05) at day 3, 7, 14, 30. There was no significant difference in overall response rates between the two groups (34.8% vs 36.0%, 56.5% vs 48.0%, P>0.05) at day 3, 7. The overall response rates of experimental group at day 14, 30 were significantly higher than that of control group (91.3% vs 68.0%, 82.6% vs 52.0%, P<0.05). The muscle aches occurred in one patient in experimental group which was self-recovery without special treatment.

CONCLUSIONrhTPO combined with high-dose dexamethasone could rapidly increase the platelet count, reduce the risk of bleeding, and prolonge the effect with a low incidence of tolerable adverse events compared to single high-dose dexamethasone. rhTPO combined with high-dose dexamethasone could be a new therapeutic choice for severe primary ITP.

Adult ; Blood Platelets ; Dexamethasone ; administration & dosage ; therapeutic use ; Humans ; Platelet Count ; Purpura, Thrombocytopenic, Idiopathic ; drug therapy ; Recombinant Proteins ; administration & dosage ; therapeutic use ; Thrombopoietin ; administration & dosage ; therapeutic use ; Treatment Outcome

Educational Measurement ; Humans ; Inservice Training ; Pneumoconiosis ; diagnosis ; Reference Standards

Objective To study the reliability, validity, sensitivity, specificity and predictive value of the Standardized Swallowing Assessment (SSA) in assessing swallowing function. Methods Sixty-seven stroke patients with dysphagia participated in the study. They were assessed twice with the SSA within 3 days. In addition, the patients' swallowing was also assessed using videofluoroscopy. Results There was high correlation in all items of the SSA between the two separate assessment sessions. The intraclass correlation coefficient was 0.85 for intrarater re- liability and 0.82 for interrater reliability. The SSA and videoflouroscopy results were highly correlated in terms of their total scores (r = -0.86,P≤0.01). Using the videoflouroscopy result as the standard, the sensitivity and spe- cificity of the SSA were 77.8% and 68.1% , respectively. At the same time, the positive and negative predictive val- ues were 48.3% and 88.9% , respectively. Conclusions The SSA has satisfactory reliability and validity, and higher sensitivity and specificity than videoflouroscopy. It is recommended for assessing swallowing with stroke pa- tients.

Aged ; Aortic Valve Insufficiency ; diagnostic imaging ; Echocardiography ; Humans ; Male

Objective to investigate a new synthesis for the preparation of fosfomycin tromethamine and to seek for the opti‐mized process and crystallization conditions .Methods An inorganic method ,utilizing in situ generated tromethamine bisulfate to re‐act with fosfomycin sodium was used to gain fosfomycin tromethamine .Results After the optimization of reaction and crystalliza‐tion condition ,it can produce fosfomycin tromethamine .Conclusion Inorganic acid salt synthesis technology is feasible with high yield .