Objective To explore the prognostic factors influencing the short-term outcome in patients with acute cerebral in-farction through the prospective study for guiding clinical treatment .Methods 92 patients with acute cerebral infarction were in-cluded in the study ,whose neurological functions were assessed via National Institute of Health Stroke Scale (NIHSS) and compu-ted tomography or magnetic resonance imaging performed within 24 h of symptom onset .All of the patients were administered with same medication regimen for acute cerebral infarction .The NIHSS and the modified Rankin Scale were used to assess the extent of disability at 15 d after admission .Multivariable logistic regression was used to analyze the associations between different factors and the two 2 prognostic factors respectively .Results When the difference of two NIHSS scores was treated as the dependent variable , the infarction volume was associated with the difference in multivariable regression ,the OR of the two groups with larger Infarction volume OR=2 .352 and OR=5 .161 ;When the Rankin Scale scores were treated as the dependent variable ,the outcome in rehabili-tation group was better than those in no rehabilitation group (OR=0 .207) .Patients with the greater baseline NIHSS scores had the worse prognosis ,the OR of the two groups with larger score OR=1 .257 and OR=1 .032 .The age ,gender ,admission time as well as infarction area were not significantly associated with clinical prognosis .Conclusion The baseline NIHSS scores and infarct vol-ume were independent prognostic factors for the short-term outcome in patients with acute cerebral infarction ,who should obtain re-habilitation treatment to improve prognosis .

ObjectiveTo investigate the control rate and influence factors of glycolated hemoglobin A1C(HbA1c) of type 2 diabetes in Baoding city community.MethodsA cluster-randomized study was conducted and three communities were selected randomly.The study involved all of people aged 45 years old and above in the three communities.The type 2 diabetic patients diagnosed before,were recorded through the cross section study.Then the questionnaire was finished.All diabetic plasma HbA1c was determined by HPLC method.ResultsEighty-seven patients with HbA1c≤7％ were only 18.6％ in all diabetic patients.As the plasma level of HbA1c increased,occurrences of macroangiopathy and microangiopathy were both increased,by the trend test.Logistic regression analysis showed that therapeutic measures and knowledge about diabetes were main influence factors of achieving the hemoglobin Alc target of ＜7％ in type 2 diabetes.ConclusionThere were low HbA1c control in diabetic patients of Baoding community,and knowing diabetes well and receiving insulin treatment might decrease HbA1c level apparently.

Objective To develop the Assessment Scale for Patient Safety Culture in ICU and do psychometric test.Methods The Assessment Scale for Patient Safety Culture in ICU was developed based on literature review,qualitative interview,and two-round Delphi consultation.The reliability and validity were tested among 235 chnical nurses and doctors in ICU.Results A 45-item questionnaire was originally developed and eleven of them were deleted after subjective screening,project analysis and exploratory factor analysis.Seven factors were extracted with cumulative contribution rate of 59.347％.The scale of total Cronbach's alpha coefficient was 0.909; the split half reliability was 0.832.Each dimension of Cronbach's alpha coefficient was between 0.481～0.909,and the split half reliability was 0.481～0.866.All had significance in statistics above.Conclusions The Assessment Scale for Patient Safety Culture in ICU has good reliability and validity,which can be used to evaluate the ICU patient safety culture atmosphere domestically.

Objective To prepare a new type of magnetic fluorescent nanoparticles and characterize them and analyze their applications in the field of biology and medicine.Methods In this paper,magnetic fluorescent nanoparticles-Fe3O4@PEI@RN were prepared by chemical synthesis.The content of the main components of the prepared particles was measured.The particles' size was analyzed by dynamic light scattering analysis,the effect of pH on the fluorescence properties was measured by fluorescence analysis,and some common metal ions,proteins and DNA were investigated whether they would interfere the particles'properties.Results The content of Fe3O4@PEI@RN showed that the autom of Fe was 14.1 mg/mL,rhodamine B was 7.6 mg/mL and napH thalimide was 94.8 mg/mL.The dynamic light scattered that the average particle diameter of the magnetic fluorescent nanoparticles was 224 nm.Fluorescence analysis showed that the fluorescence ratio F of Fe3O4@PEI@RN at 532 nm and 574 nm were pH-sensitive with a pKa of 6.73.When the concentration of common metal ions was 5 × 10-6,they did not change their fluorescence determinations,and when the protein concentration was less than 14 mg/mL and the DNA concentration was less than 20 mg/mL,they did not interfere with their determinations.Conclusion A new type of magnetic fluorescent nanomaterials is successfully prepared.Its good fluorescence shows it has great potential in the field of biomedicine.

Objective To prepare a new type of magnetic fluorescent nanoparticles and characterize them and analyze their applications in the field of biology and medicine.Methods In this paper,magnetic fluorescent nanoparticles-Fe3O4@PEI@RN were prepared by chemical synthesis.The content of the main components of the prepared particles was measured.The particles' size was analyzed by dynamic light scattering analysis,the effect of pH on the fluorescence properties was measured by fluorescence analysis,and some common metal ions,proteins and DNA were investigated whether they would interfere the particles'properties.Results The content of Fe3O4@PEI@RN showed that the autom of Fe was 14.1 mg/mL,rhodamine B was 7.6 mg/mL and napH thalimide was 94.8 mg/mL.The dynamic light scattered that the average particle diameter of the magnetic fluorescent nanoparticles was 224 nm.Fluorescence analysis showed that the fluorescence ratio F of Fe3O4@PEI@RN at 532 nm and 574 nm were pH-sensitive with a pKa of 6.73.When the concentration of common metal ions was 5 × 10-6,they did not change their fluorescence determinations,and when the protein concentration was less than 14 mg/mL and the DNA concentration was less than 20 mg/mL,they did not interfere with their determinations.Conclusion A new type of magnetic fluorescent nanomaterials is successfully prepared.Its good fluorescence shows it has great potential in the field of biomedicine.

The cochlear auditory epithelium contains two types of sound receptors, inner hair cells (IHCs) and outer hair cells (OHCs). Mouse models for labelling juvenile and adult IHCs or OHCs exist; however, labelling for embryonic and perinatal IHCs or OHCs are lacking. Here, we generated a new knock-in Fgf8^P2A-3×GFP/+ (Fgf8^GFP/+) strain, in which the expression of a series of three GFP fragments is controlled by endogenous Fgf8 cis-regulatory elements. After confirming that GFP expression accurately reflects the expression of Fgf8, we successfully obtained both embryonic and neonatal IHCs with high purity, highlighting the power of Fgf8^GFP/+. Furthermore, our fate-mapping analysis revealed, unexpectedly, that IHCs are also derived from inner ear progenitors expressing Insm1, which is currently regarded as an OHC marker. Thus, besides serving as a highly favorable tool for sorting early IHCs, Fgf8^GFP/+ will facilitate the isolation of pure early OHCs by excluding IHCs from the entire hair cell pool.
Animals ; Mice ; Hair Cells, Auditory, Inner ; Cochlea/metabolism* ; Hair Cells, Auditory, Outer/metabolism* ; Disease Models, Animal ; Fibroblast Growth Factor 8/metabolism*

ObjectiveTo compare the differences in color， odor， coumarin content and microbial community composition of Angelicae Dahuricae Radix（ADR） during different drying processes， and to explore the correlation between changes in microbial community composition and changes in quality indexes of ADR. MethodsThe fresh ADR was processed at three drying temperatures（50， 70， 100 ℃） by drying and steaming cutting， semi-fresh cutting and drying， fresh cutting and drying， and sulfur fumigation methods. The color values of samples were extracted by Adobe Photoshop 2022 software and subjected to principal component analysis（PCA）， electronic nose was used to identify the odor information of medicinal powders and subjected to loadings analysis， PCA， and linear discriminant analysis（LDA）， and high performance liquid chromatography（HPLC） was used to determine the contents of five coumarins（bergapten， oxypeucedanin， imperatorin， phellopterin， isoimperatorin）. The samples for microbial detection were taken from fresh dried samples， 50 ℃（dried and steamed cut， sulfur fumigated） samples， and 100 ℃（dried and steamed cut） samples when the water content was 50% and 14%， respectively. And the changes of microbial community composition during processing were determined by high-throughput sequencing method. The relationship between the changes of microbial community composition and the changes of odor， color and active component content of ADR during drying process was analyzed by Pearson correlation analysis. ResultsThe color quantification results showed that an increase in drying temperature led to the decrease of brightness value（L）， and the increases of red-green value（a） and yellow-blue value（b）， and the change of processing method had no obvious effect on the color of medicinal materials. The results of odor quantification showed that W1S， W2S， W5S， W2W and W1W sensor were sensitive to the odor changes of ADR and could be used to distinguish ADR decoction pieces from different processing methods. The results of HPLC showed that the coumarin content of ADR decreased with the increase of drying temperature and the delay of processing time， the optimal processing method was drying and steaming cutting method， and the optimal temperature was 50 ℃. High-throughput sequencing results showed that the dominant bacteria in ADR during processing were Achromobacter， Agrobacterium， Nocardioides， Mycobacterium and Enterobacter， the dominant fungi were Coprinopsis， Meyerozyma and Apiotrichum. The results of correlation analysis showed that the quality indexes of ADR were positively correlated with Agrobacterium， Mycobacterium in bacteria， Candida in fungi， and negatively correlated with Bacillus in bacteria. ConclusionThere are significant differences in the color， odor， coumarin content and microbial community composition of ADR in different drying processes， and the best drying method is drying and steaming cutting at 50 ℃. The relative abundance changes of 9 bacterial genera and 4 fungal genera are closely related to the quality formation of ADR during the drying process.

Mice ; Animals ; Spiral Ganglion/physiology* ; Cochlea/physiology* ; Neurons