ObjectiveTo study the chemical constituents of Painong powder and the constituents absorbed into blood after oral administration to rats by ultra performance liquid chromatography-quadrupole-electrostatic field orbitrap high-resolution mass spectrometry （UPLC-Q-Orbitrap-MS）. MethodsUPLC-Q-Orbitrap-MS was employed for mass spectrometry data acquisition. The chemical constituents of Painong Powder and the constituents absorbed into blood were characterized and identified via Xcalibur 4.2 and Compound Discoverer v3.3.1 （CD） based on retention time， accurate molecular weights， secondary fragmentation ions， and comparison with reference standards and literature reports. ResultsA total of 176 chemical compounds， including 56 flavonoids， 42 triterpenoid saponins， 23 monoterpenes， 7 coumarins， 5 tannins， and other 43 compounds were identified from Painong powder. 49 components were identified in the rat plasma after oral administration of Painong powder， including 33 prototype constituents and 16 metabolites. The major metabolic pathways included hydrolysis in phase Ⅰ metabolic reactions， as well as methylation， sulfation， and glucuronidation in phase Ⅱ metabolic reaction. ConclusionThe method comprehensively identified the chemical constituents of Painong powder both in vitro and in vivo， and may provide a reference for the study of quality control and clinical applications.

The pain-evoked potential electroencephalogram (EEG) is an effective electrophysiological indicator for pain assessment, yet its extraction is challenging due to interference from background activity and involuntary blinks. Although existing blink artifact-removal methods show efficacy, they face limitations such as the need for reference signals, neglect of individual differences, and reliance on user input, hindering their practical application in clinical pain assessments. In this paper, we propose a novel framework applying adaptive quadrature mirror filter banks (AQMFB) with discrete wavelet transform (DWT) to remove blink artifacts in pain EEG. Unlike traditional DWT methods that apply fixed wavelets across subjects, our method adapts wavelet construction based on the characteristics of EEG. Experimental results demonstrate that AQMFB-DWT outperforms four leading methods in removing blink artifacts with minimal distortion of pain information, all within an acceptable processing time. This technique is a valuable preprocessing step for enhancing the extraction of pain-evoked potentials.
Humans ; Artifacts ; Blinking/physiology* ; Electroencephalography/methods* ; Pain/diagnosis* ; Male ; Wavelet Analysis ; Adult ; Female ; Evoked Potentials/physiology* ; Young Adult ; Brain/physiopathology* ; Pain Measurement/methods* ; Signal Processing, Computer-Assisted

Objective:To study the regulatory effect of Wumen-Yiji powder on 5-hydroxytryptamine (5-HT) signal transduction system in intestine and hypothalamus of diarrhea irritable bowel syndrome (IBS-D) model rats. Methods:Sixty male SD rats were randomly divided into blank group (10 rats) and diarrhea irritable bowel syndrome group (50 rats). The diarrhea irritable bowel syndrome group formed the diarrhea irritable bowel syndrome model after 2 weeks of senna leaf gavage and restraint stress. They were randomly divided into model group, deshute group (1.5 mg/kg), low, medium and high dose group of Wumen-Yiji San (6, 12, 24 g/kg), with 10 rats in each group. After continuous administration for 2 weeks, the contents of 5-HT in serum, colon and hypothalamus were detected by ELISA; HE staining was used to observe the pathological changes of colon in each group. The protein and mRNA levels of tryptophan hydroxylase 1 (TPH-1), serotonin receptor 3 (5-HT3R), serotonin receptor 4 (5-HT4R), serotonin transporter (SERT) in colon and hypothalamus were detected by Western blot and RT-PCR, respectively. Results:Compared with the model group, the pathological morphology of colon in each treatment group was improved. Compared with the model group, the level of 5-HT in serum and colon significantly decreased ( P<0.05), and the level of 5-HT in hypothalamus of rats in the low, medium, high dose group of Wumen-Yiji San significantly increased ( P<0.05). The expression of TPH-1, 5-HT3R and 5-HT4R protein significantly decreased ( P<0.05), and the expression of SERT protein in the medium, high dose group of Wumen-Yiji San significantly increased ( P<0.05). The expression of TPH-1, 5-HT3R and 5-HT4R protein in hypothalamus increased ( P<0.05), and the expression of SERT protein in the high dose group of Wumen-Yiji San significantly decreased ( P<0.05). The mRNA levels of TPH-1 (4.778 ± 0.604, 3.278 ± 0.668, 1.670 ± 0.361 vs. 6.877 ± 0.148), 5-HT3R (3.807 ± 0.463, 2.697 ± 0.455, 1.132 ± 0.136 vs. 6.322 ± 0.778), 5-HT4R (4.521 ± 0.234, 2.801 ± 0.351, 1.331 ± 0.142 vs. 6.741 ± 0.293) in colon tissue of low, medium and high dose groups of Wumen-Yiji San decreased ( P<0.05). The level of 5-HT4R mRNA (0.616 ± 0.208, 0.726 ± 0.226 vs. 0.521 ± 0.062) increased ( P<0.05), and the level of SERT mRNA (1.563 ± 1.023 vs. 2.612 ± 1.035) in medium, high dose group of Wumen-Yiji San decreased ( P<0.05). Conclusion:The result showed that Wumen-Yiji San could regulate the expression of 5-HT signaling system relating proteins and mRNA in the colon and hypothalamus of IBS-D rats within a certain dose range, so as to improve the symptoms of IBS-D.

Objective:To investigate the cognition and willingness of nursing staff to Internet plus nursing service, and analyze the related factors that affect their participation in Internet plus nursing service.Methods:From April to May 2019, 150 nurses from three hospitals in Weifang were investigated by questionnaire and key person interview. Descriptive analysis and binary logistic regression analysis were used to analyze the intention of nursing staff to participate in Internet plus nursing service. The interview mode was used to analyze the appropriate mode of Internet plus nursing service from the perspective of nursing staff.Results:142 valid questionnaires were obtained, of which 137(96.5%)indicated willingness to provide Internet plus nursing services, and 135(95.1%) realized the necessity of the service. Education, marriage, nurses′judgment on the necessity of the service and their own subjective judgment of their competence were the factors affecting nurses′ participation in the Internet plus nursing service.Conclusions:Multiple factors affect the choice of nursing staff′s behavior in Internet plus nursing service.From the perspective of nursing staff, the Internet plus nursing service mode needs joint efforts from many aspects.

Objective:To investigate the effects of miRNA-499a-5p targeting CD38 on cardiomyocyte injury induced by hydrogen peroxide (H 2O 2) and the possible mechanism. Methods:H9c2 cardiomyocytes were cultured in vitro and induced with H 2O 2 to establish the cardiomyocyte injury model. Four groups including control, H 2O 2, H 2O 2+ negative control (NC) and H 2O 2+ miRNA-499a-5p groups were set up. Real-time quantitative PCR (RT-qPCR) and Western blot were used to detect the expression of miRNA-499a-5p and CD38 in cardiomyocytes, respectively. MTT assay was used to measure the survival rates of cardiomyocytes. The levels of reactive oxygen species (ROS) and the activity of lactate dehydrogenase (LDH) were analyzed with test kits. Annexin V-FITC/PI double staining method was used to detect the apoptosis rates of cardiomyocytes. Western blot was used to detect the expression of B-cell lymphoma/leukemia-2 (Bcl-2), Bcl-2-related X protein (Bax), phosphoinositide 3-kinase (PI3K), phosphorylated PI3K (p-PI3K), protein kinase B (Akt) and phosphorylated Akt (p-Akt). Dual luciferase reporter assay was used to detect the targeting relationship between miRNA-499a-5p and CD38. Results:Compared with the control group, the expression of miRNA-499a-5p, Bcl-2, p-PI3K and p-Akt and the survival rate of cardiomyocytes were significantly reduced in the H 2O 2 group ( P<0.05), while the expression of CD38 and Bax, ROS level, LDH activity and the apoptosis rate were significantly increased ( P<0.05). Compared with the H 2O 2 group, the expression of miRNA-499a-5p, Bcl-2, p-PI3K and p-Akt and the survival rate of cardiomyocytes were significantly increased in the H 2O 2+ miRNA-499a-5p group ( P<0.05), while the expression of CD38 and Bax, ROS level, LDH activity and the apoptosis rate were significantly decreased ( P<0.05). Dual luciferase reporter assay confirmed that CD38 was a target gene of miRNA-499a-5p. Conclusions:miRNA-499a-5p could alleviate H 2O 2-induced cardiomyocyte injury by inhibiting the expression of CD38 and the PI3K/Akt signaling pathway might be involved.

Objective To investigate the effect of long non-coding RNA F19 (lncRNA F19) on secondary brain injury following traumatic brain injury (TBI) in mice. Methods (1) A total of 96 C57BL/6J male wild-type mice were divided into sham group, sham+control lentivirus group, sham+F19 lentivirus group, TBI group, TBI+control lentivirus group and TBI+F19 lentivirus group according to the random number table. Each group consisted of two subgroups of 1 day and 3 days after TBI, with eight mice per subgroup. The expression and silence efficiency of lncRNA F19 were detected. ( 2 ) A total of 96 C57BL/6J male wild-type mice were divided into sham group, TBI+control lentivirus group and TBI + F19 lentivirus group according to the random number table. Each group consisted of two subgroups of 1 day and 3 days after TBI, with 16 mice per subgroup. The effect of lncRNA F19 on neuronal apoptosis after TBI was recorded. The mice TBI model was established using the controlled cortical damage method (CCI). The lncRNA F19 lentivirus or control lentivirus were administrated by intracerebroventricular injection 5 days before injury. The expressions of lncRNA F19 ( 2 -ΔΔct ) were detected by real-time quantitative PCR ( qRT-PCR ) at 1 day and 3 days after injury. The Toll-like receptor 4 (TLR4), B lymphocyte tumor-2 (Bcl-2) and Bcl-2 related protein (Bax) expressions were detected by Western blot. The TUNEL was used to detect apoptosis around the traumatic lesions. Results From the first day after injury, both in the sham operation and TBI groups, the control lentivirus had no effect on the level of lncRAN F19 (P >0. 05). One day after injury, compared with sham +control lentivirus group, the levels of lncRNA F19 in sham + F19 lentivirus group were significantly decreased (0. 07 ± 0. 07:0. 93 ± 0. 17);compared with TBI+control lentivirus group, levels of lncRNA F19 in TBI+F19 lentivirus group were significantly decreased (2. 91 ± 1. 18:0. 52 ± 0. 32) (P<0. 05). There were significantly lower protein levels of TLR4 (0. 51 ± 0. 13:0. 66 ± 0. 15), Bax (0. 45 ± 0. 06:0. 67 ± 0. 16), lower TUNEL-positive neurons ratio [(23. 55 ± 6. 85)％ : (31. 58 ± 7. 52)％], but higher protein levels of Bcl-2 (0. 76 ± 0. 16:0. 47 ± 0. 12) in TBI+F19 lentivirus group compared with the TBI+ control lentivirus group (P <0.05). Three days after injury, compared with sham + control lentivirus group, levels of lncRNA F19 in sham+F19 lentivirus group were significantly decreased (0. 11 ± 0. 09:0. 96 ± 0. 09); compared with TBI+control lentivirus group, levels of lncRNA F19 in TBI+F19 lentivirus group were significantly decreased (0. 54 ± 0. 24:3. 39 ± 0. 90) (P <0. 05). There were significantly lower protein levels of TLR4 (0. 60 ± 0. 20):(0. 85 ± 0. 09)], lower Bax (0. 60 ± 0. 12:0. 88 ±0. 21), lower TUNEL-positive neurons ratio [(29. 10 ± 7. 37)％ :(39. 22 ± 10. 64)％], but higher protein levels of Bcl-2 (0. 66 ± 0. 12:0. 35 ± 0. 16) in TBI+F19 lentivirus group compared with the TBI+control lentivirus group (P<0. 05). Conclusion Inhibition of lncRNA F19 can significantly reduce the TLR4-induced neuronal apoptosis in cortex after TBI in mice and alleviate reduce the secondary brain injury.

Objective To analyze the distribution and antimicrobial resistance profile of clinical bacterial strains isolated from blood culture in China.Methods Clinical bacterial strains isolated from blood culture from participating hospitals of Blood Bacterial Resistance Investigation Collaborative System (BRICS) during January 2014 to December 2015 were collected.Antibiotic susceptibility tests were conducted with agar dilution or broth dilution methods as recommended by US Clinical and Laboratory Standards Institute(CLSI)2018.The data were analyzed with Whonet 5.6 software.Results During the study period,4 801 clinical bacterial isolates were collected from 26 hospitals,of which 1 798 (37.5％) were Gram-positive bacteria and 3 003 (62.5％) were gram-negative bacteria.The top 10 isolates were Escherichia coli (33.8％),coagulase-negative Staphylococcus (19.0％),Klebsiella pneumoniae (11.9％),Staphylococcus aureus (10.1％),Acinetobacter baumannii (4.0％),Pseudomonas aeruginosa (3.8％),Streptococcus (3.0％),Enterobacter sulcus (2.9％),Enterococcus faecium (2.8％) and Enterococcus faecalis (1.8％).Methicillin-resistant Staphylococcus aureus (MRSA) and methicillinresistant coagulase-negative Staphylococcus (MRCNS) accounted for 33.9％ (165/487) and 56.9％ (520/913) of Staphylococcus aureus and coagulase-negative Staphylococcus respectively.No vancomycinresistant Staphylococcus was detected.The resistance rate of Enterococcus faecium to vancomycin was 0.7％ (1/135),and no vancomycin-resistant Enterococcus faecaliss was detected.The positive rates of extendedspectrum β-1actamases(ESBLs)-producing Escherichia coli,Klebsiella pneumoniae and Proteus were 56.9％ (923/1 621),30.1％ (172/572) and 29.2％ (7/24),respectively.The positive rates of carbapenemresistant Escherichia coli,Klebsiella pneumoniae,Enterobacter,Salmonella and Citrobacter were 1.2％ (20/1 621),7.2％ (41/572),4.3％ (6/141),1.5％ (1/67) and 2.9％ (1/34),respectively.The resistance rates of Acinetobacter baumannii to polymyxin and tegacycline were 2.6％ (5/190) and 8.9％ (17/190)respectively,and that of Pseudomonas aeruginosa to polymyxin and fosfomycin were 1.1％ (2/183)and 0.6％ (1/183),respectively.Conclusions The surveillance results from 2014 to 2015 show that the main pathogens of blood stream infection in China are Gram-negative bacteria,while Escherichia coli is the most common pathogen,the detection rate of MRSA is lower than other surveillance data in the same period in China;carbapenem-resistant Klebsiella pneumoniae and Escherichia coli are at a low level as shown in this surveillance.

Objective To investigate the effect of Early Intervention Denver Model ( Early Start Denver Model,ESDM) on children with autism spectrum disorder( ASD). Methods From May 2017 to April 2018,forty four children aged 2-5 years with ASD were enrolled in the study and were randomly divided into the experimental group(n=20) and the control group (n=20). The experimental group received ESDM rehabilitation intervention and the control group received conventional rehabilitation intervention. Before and 6 months after intervention,all children were assessed by the Psycho-educational Profile-3rd Edition ( PEP-3). Results After 6 months of intervention,the developmental age of cognition (30 (26,34),33(30,44);Z=-3. 728,P<0. 001),imitation (33(29,40),38( 32,43); Z=-2. 010,P=0. 044),expression language (29(23,39),41( 33,50); Z=-3. 923, P<0. 01), receptive language ( 25 ( 20,32),34 ( 28,38); Z=-3. 727,P<0. 01) and fine motor (29(23,41),39(33,47) ;Z=-2. 704,P=0. 007) of the control group were significantly higher than those before intervention. In the experimental group,the developmental age of cognition (25 ( 21,32),37 ( 32,40); Z=-3. 922, P<0. 01),imitation ( 22 ( 17,35),39 ( 38,42); Z= -3. 826,P<0. 01),expression language (30(24,35),47( 37,53); Z=-3. 824,P<0. 01),receptive lan-guage (22(15,32),37(30,43); Z=-3. 924,P<0. 01),fine motor (25(22,33),43(30,52); Z=-3. 924, P<0. 01) and gross motor ( 24(17,38),40(27,43); Z=-3. 523,P<0. 01) were significantly higher than those before intervention. Compared with the control group,the experimental group had significantly greater changes in the five regions:cognition(6(3,10),11(10,20); Z=-2. 821,P=0. 005),expression language (6(4,9),12(7,18); Z=-3. 278,P=0. 001),receptive language(5(3,10),12(7,18); Z=-3. 299,P=0. 001),fine motor (7(1,10),13(10,22); Z=-3. 038,P=0. 002)and gross motor(1(0,10),11(5,16);Z=-2. 568,P=0. 01) of PEP-3 after intervention. Conclusion Both conventional intervention and ESDM intervention can improve the cognitive,expression language,receptive language,imitation and fine motor abili-ty of children with ASD aged from 2 to 5 years,but ESDM intervention is more effective on improving the cog-nitive,language,imitation and fine motor ability of children with ASD.

The family physicians contracted service is an important means to promote hierarchical diagnosis and treatment and realize healthy Chinese strategy. With the continuous introduction of family physicians contracted service policy, it is very important to raise awareness, effectively promote and put into place.This study analyzed the family physicians contracted service policy from the perspective of public policy, and used the multiple streams theory framework to analyze the driving factors of the policy proposed. In addition, it explored the influence of problem stream, policy stream, and political stream on the policy launch process.These efforts can help improvement the policy awareness in the process, and help ensure sustainable progress of the policy.

The policy model of G. C. Edwards was used to study the policies on building a countywide medical community ( CMC), and identify problems in such aspects as policy communication, resources, disposition and bureaucratic structure. The analysis found that enriching health resources at primary level and powerful government support are creating ideal environment for the construction of CMC. But due to its preliminary development, rooms of improvement of its policy design, and unclear enforcement standards, there appear behavioral polarizations at local health authorities. For example, some are proactive to explore and accumulate rich experiences, while the most take a wait and see stand, or even take administrative means to cope with their authorities by forming medical communities in form only. A small part of county hospitals, thanks to support from the government and inherent conditions, take active measures in this direction as policy frontrunners. On the other hand, most county hospitals prefer to be policy followers in order to avoid cost and risks of the reform. In the worst cases, a few county hospitals have become free riders of the policy, and attempt to take advantages of their primary health institutions. Primary health institutions warmly embrace CMC, but their limited service capability constitutes roadblocks in CMC construction. What is more, poor communication and collaboration mechanisms among systems and authorities hinder the effective policy synergy and health service integration of CMS.