Objective To determine the effect of local mild hypothermia on patients with acute cerebral infarction and ascertain its optimal therapeutic window. Methods According to the time receiving treatment, 114 patients with acute cerebral infarction were divided into group A (≤6 h), group B (6-24 h) and group C (≥ 24 h). Then, each group was subdivided into 2 groups at random: treatment group (A1, B1, C1) and control group (A2, B2, C2). Patients in the control group were subjected to such conventional therapy as anti-platelet aggregation. Patients in the treatment group were treated with local mild hypothermia (33-35 ℃ body-core temperature) for 48 h besides conventional therapy. Clinical outcomes were assessed by the National institutes of health stroke scale (NIHSS) on admission and 7, 14,30 d after treatment. Furthermore, we detected the serum level of nitrogen monoxidum (NO) and superoxide dismutasc (SOD) on admission, and 7 and 14 d after treatment. Results Compared with the control group, treatment group enjoyed significantly decreased scores of NIHSS 7, 14 and 30 d after treatment and significantly decreased level of NO 7 and 14 d after treatment (P＜0.05), but obviously increased SOD vitality 7 and 14 d after treatment (P＜0.05). No significant differences in terms of NIHSS scores, level of NO and SOD vitality were noted between group C1 and group C2 at each time point (P＞0.05). Group Al and group B1 had obviously lower scores of NIHSS than group C1 on the 7th, 14th and 30th d of treatment, and had significantly lower level of NO and obviously increased SOD vitality as compared with group C1 on the 7th and 14th d of treatment (P＜ 0.05), and group A1 enjoyed its advantage.Conclusion Early local mild hypothermia therapy can improve neurological function in patients with acute cerebral infarction. The mild hypothermia induced within 6 h may be optimal therapeutic window;mild hypothermia induced at 6-24 h is less effective and that above 24 h is non-effective.

Objective To determine the safety and efficacy of intra-arterial urokinase in the treatment of acute cerebral infarction (ACI) patients with computed tomography perfusion-based selection within a 6-9 h window.Methods Fifty-two ACI patients,with computed tomography perfusion imaging (CTPI) identifying thresholds for salvageable penumbra,were randomly assigned to intra-arterial thrombolysis with urokinase (group A) and conventional anti-platelet aggregation (group B) within a 6-9 h window.Whole brain digital subtraction angiography (DSA) was done at pre-and post-treatment to observe the recanalization of occlusive vessels in group A.The National Institutes of Health Stroke scale (NIHSS) 24 h and 7 d after treatment,and modified Rankin Scale (mRS) and Barthel Index (BI) 90 d after treatment were used to evaluate the efficacy.Results In group A,15 patients showed successful recanalization (thrombolysis in myocardial infarction [TIMI] index:grade Ⅲ in 9 and grade Ⅱ in 6) and 12 patients showed unsuccessful recanalization (TIMI index:grade Ⅰ in 6 and grade 0 in 6) with a successful recanalization rate of 55.56％.More obvious NIHSS improvement 24 h and 7 d after treatment in group A was observed than that in group B (P＜0.05),and more patients with favorable outcomes based on mRS and BI in group A were noted than those in group B (P＜0.05).In addition,the incidence of cerebral hemorrhage within 24 h of treatment between the two groups was similar (P＞ 0.05).Conclusions Intra-arterial thrombolysis with urokinase is safe and effective for ACI patients within a 6-9 hour window under the guidance of CTPI.

Animals ; Cellular Reprogramming ; Dentate Gyrus ; cytology ; Fibroblasts ; cytology ; Mice ; Neural Stem Cells ; cytology ; transplantation ; Swine

To analyze the genetic characterization of epidemic rubella virus strains isolated in Liaoning from 2007-2012, a total of 145 rubella virus strains were isolated using Vero/Slam cell line from the patients' throat swabs during rubella outbreaks and sporadics cases in Liaoning Province from 2007 to 2012. Fragments of 945 nucleotides containing 1E gene from 145 rubella virus isolates were amplified by RT-PCR, the PCR products were sequenced and analyzed. Based on the 739 nucleotides of 1E gene, the phylogenetic trees were constructed with 32 WHO rubella reference strains of 13 genotypes downloaded from GenBank and 145 rubella virus strains. The results showed that the 145 rubella virus strains in 2007 -2012 belonged to genotype 1E, nucleotide acids and amino acids similarities were 97.2%-100.0% and 97.6%-100.0%, respectively. Compared to the 1E reference strains(Rvi/ Dezhou.CHN/02, RVi/MYS/01), the nucleotide acids and amino acids similarities were 96.6%-99.2% and 98.2%-100.0%, respectively except for one amino acid change (Val246-Ala246) of RVi/Shenyang. Liaoning. CHN/13.11/13, and Asp262-Asn262 of RVi/Shenyang. Liaoning. CHN/13.11/4 and RVi/Liaoyang. Liaoning. CHN/26. 11/2. there had no change found in the important antigenic epitope sites, the hemagglutination inhibition and neutralization epitopes of the other rubella viruses. All the 145 strains isolated had the same amino acid change (Leu338--Phe338) in E1 protein. These findings suggested that genotype 1E of rubella virus was the predominant genotype in Liaoning province. the rubella prevailed in recent six years was mainly caused by rubella viruses genotype 1E with multi-transmission routes.
Amino Acid Sequence ; China ; epidemiology ; Epidemics ; Genotype ; Humans ; Molecular Sequence Data ; Phylogeny ; Rubella ; epidemiology ; virology ; Rubella virus ; classification ; genetics ; isolation & purification ; Sequence Alignment ; Viral Envelope Proteins ; chemistry ; genetics