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Objective To investigate the biological basis of disease and syndrome by studying the spectrum of myocardial tissue metabolites in the rat model of coronary heart disease with heart blood stasis syndrome.Methods SD rats were randomly divided into sham-operation group and model group.The left anterior descending coronary artery was ligated to prepare the rat model of coronary heart disease with heart blood stasis syndrome.The general condition was observed,and the tongue chromaticity,electrocardiogram,cardiac function were detected.HE staining and transmission electron microscopy were used to observe myocardial tissue morphology and ultrastructure.UPLC-MS technology was used to investigate the differential metabolites in rat myocardial tissue,and enrichment analysis was conducted on metabolic pathways.Results Compared with the sham-operation group,the tongue chromaticity R,G,B values of model group rats were significantly reduced(P<0.05),ECG heart rate and ST segment elevation amplitude significantly increased(P<0.05),LVEF and LVFS significantly decreased,and LVIDs and LVIDd significantly increased(P<0.05).Myocardial tissue pathology revealed that the structure was blurred,inflammatory cells infiltrated,mitochondria swelled,ruptured,and dissolved,and crista structure fracture decreased.A total of 29 potential biomarkers with significant differences between the sham-operation group and the model group were identified in metabolomics(7 upregulated and 22 downregulated),with the majority of 10 pathways enriched in thiamine metabolism,arginine biosynthesis,purine metabolism,aminoacyl-tRNA biosynthesis,alanine,aspartate and glutamate metabolism,pentose and glucuronate interconversions,glycolysis/gluconeogenesis,valine,leucine and isoleucine degradation,TCA cycle,pyruvate metabolism.Conclusion Ligation of the left anterior descending coronary artery can mimic the pathological process of coronary heart disease with blood stasis syndrome in a good way,and its pathological mechanism involves the disruption of multi-level metabolic networks such as glucose metabolism,mitochondrial energy metabolism,amino acid metabolism,protein biosynthesis,and purine metabolism.
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ObjectiveTo explore the establishment and evaluation methods of the rat model of acute myocardial infarction (AMI) in coronary heart disease with the syndrome of Qi and Yin deficiency by sleep deprivation (SD) combined with isoproterenol (ISO) and preliminarily explore its biological basis. MethodForty SD rats were assigned into normal (no treatment), SD (treatment in modified multi-platform water environment for 96 h), ISO (subcutaneous injection of ISO at 100 mg·kg-1 once every other day for a total of 2 times), and SD+ISO (injection of 100 mg·kg-1 ISO after SD for 72 h and 96 h) groups. The cardiac function was detected by small animal echocardiography. The serum levels of creatine kinase (CK), creatine kinase isoenzyme (CK-MB), lactate dehydrogenase (LDH), and cardiac troponin T (cTnT) were measured by biochemical methods. The pathological changes of the myocardial tissue were observed by hematoxylin-eosin staining. The general state, body weight, grip strength, body temperature, behaviors in open field test, serum levels of cyclic adenosine monophosphate (cAMP), cyclic guanosine monophosphate (cGMP), cAMP/cGMP ratio, red (R), green (G), blue (B) values of the tongue surface, and pulse amplitude were observed and measured to evaluate the modeling results. Enzyme-linked immunosorbent assay was employed to determine the serum levels of interleukin-18 (IL-18), tumor necrosis factor-α (TNF-α), superoxide dismutase (SOD), malondialdehyde (MDA), corticotropin-releasing factor (CRF), adrenocorticotropic hormone (ACTH), triiodothyronine (T3), tetraiodothyronine (T4), cluster of differentiation 4 (CD4), and cluster of differentiation 8 (CD8). ResultIn terms of disease indicators, the ISO and SD+ISO groups had lower cardiac function indicators than the normal group (P<0.01). The levels of CK, CM-MB, LDH and cTnT elevated in each model group compared with the normal group (P<0.01). The pathological changes of myocardial tissue were obvious in the ISO and SD+ISO groups. In terms of syndrome indicators, compared with the normal group, the SD and SD+ISO groups showed decreased body weight at each time point (P<0.01), and the ISO group showed decreased body weight at the time points of 48 h and 72 h (P<0.05, P<0.01). The paw temperature and rectal temperature increased in the SD group (P<0.01). The model groups showed weakened grasp strength, lowered R, G, and B values of the tongue surface (P<0.01), prolonged immobility time (P<0.01), reduced total distance and number of entering the central area (P<0.01), decreased average speed (P<0.05, P<0.01), and increased cAMP and cGMP (P<0.05, P<0.01). The cAMP/cGMP ratio was increased in the SD+ISO group (P<0.01), and the pulse amplitude was decreased in the SD and SD+ISO groups (P<0.01). In terms of serological indicators,compared with the normal group, the levels of IL-18, TNF-α, SOD and MDA were significantly increased in the ISO and SD+ISO groups (P<0.01), the CRF, ACTH, CORT, T3, T4, CD4 and CD8 in the model groups were increased (P<0.05, P<0.01). ConclusionSleep deprivation for 96 h combined with high-dose ISO can successfully establish a rat model of acute myocardial infarction in coronary heart disease with the syndrome of Qi and Yin deficiency. The model evaluation system can be built with disease indicators of western medicine, histopathological indicators, macroscopic indicators of traditional Chinese medicine, and serological indicators.
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In the case of cardiac dysfunction, energy metabolism changes and the metabolism of myocardial substrates is reconstructed, as manifested by variation in the selection and utilization of energy substrates such as fatty acids and glucose. Persistent metabolic disorders of substrates will decrease energy supply, thus resulting in the occurrence and development of heart failure. Metabolic remodeling of substrate is resulted from the decline of visceral function and the accumulation of pathological products. Deficient Qi stagnation is the core pathogenesis. Deficient Qi (heart Qi deficiency, insufficient energy) is the root cause, which exists in the whole disease course. Stagnation (phlegm, blood stasis, fluid, lipid toxic products, lactic acid, etc.) is the symptom, which evidences the aggravation of the disease. Deficient Qi and stagnation are intertwined and causal, which form a spiral vicious circle. The typical syndrome is excess resulted from deficiency and deficiency-excess in complexity. The treatment principle is reinforcing healthy Qi and tonifying deficiency, dredging and removing pathogen. At the early stage, the method of reinforcing healthy Qi and tonifying deficiency (benefiting Qi) should be used, and the method of dredging and removing pathogen (activating blood) can be applied according to the conditions of patients. At the middle and late stages, both reinforcing healthy Qi and tonifying deficiency (benefiting Qi and warming Yang) and dredging and removing pathogen (activating blood, resolving stasis, and excreting water) should be emphasized. Chinese medicine can be applied according to the pathogenesis, thereby promoting the utilization of fatty acids, glucose, and other substrates and reducing the accumulation of toxic products derived from metabolic remodeling of substrate. Thus, both the root cause and symptoms can be alleviated, further improving cardiac energy metabolism and heart function.
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Objective:To explore the predictive value of serum 25-hydroxyvitamin D [25 (OH) D] and interleukin-6 (IL-6) levels in the development of osteoporosis (OP) in gestational diabetes mellitus (GDM) during early pregnancy.Methods:A total of 178 pregnant women with GDM admitted to Shanxi Provincial Children’s Hospital from Sep. 2018 to May. 2022 were selected as the research subjects and divided into OP group and non-OP group based on bone density. General information of patients was collected, and biochemical indicators related to bone metabolism were measured, including calcium (Ca), β-collagen special sequence ( β-CTX), type 1 procollagen amino-terminal peptide (PINP), n-terminal bone calciuim (N-MID), osteocalcin (OC), and bone alkaline phosphatase (BAP). The levels of 25 (OH) D and IL-6 in the serum of the two groups were measured. The predictive value of 25 (OH) D and IL-6 levels for GDM complicated with OP was analyzed. Results:Compared with the non-OP group (29.95±6.88), the serum 25 (OH) D level was significantly lower in the OP group (20.78±6.02) ( t=5.56, P<0.001), and the IL-6 level was significantly higher in the OP group (75.19±9.15) than in the non-OP group (50.23±10.08) ( t=10.26, P<0.001). There was no significant difference in the levels of Ca, P, β-CTX, PINP, or N-MID between the two groups (all P>0.05). The levels of BAP (13.25±3.12) and OC (6.62±1.24) in the OP group were significantly lower than those in the non-OP group (BAP: 18.23±3.78, t=5.52, P<0.001; OC: 8.75±1.52, t=5.87, P<0.001). Pearson correlation analysis showed a positive correlation between 25 (OH) D level and bone density, BAP, and OC ( r=0.26, 0.21, 0.23, all P<0.05), while IL-6 level showed a negative correlation with bone density, BAP, and OC ( r=-0.39, -0.21, -0.27, all P<0.05). ROC curve analysis showed that serum 25 (OH) D and IL-6 could serve as effective diagnostic markers for GDM complicated with OP (AUC=0.853, P<0.0001; AUC=0.869, P<0.0001) during early pregnancy. Conclusions:The serum 25 (OH) D level is decreased and IL-6 level is increased in GDM patients with OP during early pregnancy. The levels of serum 25 (OH) D and IL-6 have predictive value for the development of GDM complicated with OP during early pregnancy.
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Lactic acid is one of the main metabolites in the body, and its clearance rate reflects the dynamic changes of lactic acid in the body. Recent studies have shown that lactate clearance rate is related to the prognosis of critically ill patients with sepsis/septic shock, cardiogenic shock, out-of-hospital cardiac arrest, postoperative cardiovascular surgery, and liver and kidney dysfunction. This article reviews the relevant research progress of lactate metabolism and lactate clearance rate in different critically ill patients.
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Turnner syndrome is a common sex chromosome disorder. We reported a rare case with Turnner syndrome caused by abnormal number and structure of sex chromosomes. Hereby fluorescence in situ hybridization (FISH) and copy number variation by whole genome low depth sequencing (CNV-seq) were used to clarify the abnormal chromosome. This study provides a diagnostic strategy for clinicians and genetic researchers.
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OBJECTIVE@#To explore the genetic basis for a neonate with Pierre-Robin sequence.@*METHODS@#The child was subjected to chromosomal karyotyping, single nucleotide polymorphism array (SNP-array)-based comparative genomic hybridization and fluorescence in situ hybridization (FISH) analysis.@*RESULTS@#The child has featured microgthnia, glossoptosis, upper airway obstruction, mandible dehiscence and short neck. He was found to have a karyotype of 46,XY,der(4)add(4)(q34). Her mother's karyotype was determined as 46,XX,t(1;4)(q43;q34), while his father was 46,XY. SNP-array analysis suggested the child to be arr [hg19] 1q42.2q44 (232 527 958-249 202 755)× 3; 4q34.3q35.2 (168 236 901-190 880 409)× 1. The result of SNP-array for both parents was normal. FISH analysis confirmed that his mother has carried a balanced t(1;4)(q42;34) translocation. The aberrant chromosome 4 in the child has derived from his mother's translocation, which gave rise to partial 1q trisomy and 4q monosomy.@*CONCLUSION@#The 1q42.2q44 duplication and 4q34.3q35.2 deletion of the child probably underlay his abnormal phenotype of Pierre-Robin sequence.
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Enfant , Femelle , Humains , Nouveau-né , Mâle , Hybridation génomique comparative , Hybridation fluorescente in situ , Monosomie , Syndrome de Pierre Robin/génétique , Translocation génétique , Trisomie/génétiqueRÉSUMÉ
Objective To evaluate the effects of the two methods of propaganda and education, conventional training method and that combined with hand contamination survey method, on the medical and nursing staffs' hand hygiene compliance. Methods From October 2017 to April 2018, all medical and nursing staffs in 6 Departments:General Surgery Ⅰ, General Surgery Ⅱ, Orthopedics Ⅰ, Orthopedics Ⅱ, Internal Medicine Ⅰ and Internal Medicine Ⅲin Cangnan Second People's Hospital receiving health education were divided into two groups; both groups received routine training, while in the observation group, on the basis of routine training, the hand hygiene pollution investigation training mode was added, In the combined training method, when the wrong hand hygiene mode occurred, the hand specimens were collected and the correct hand washing method was instructed on the spot, and then the following hand specimens were taken to investigate the contaminated condition. One month before the training, the real situations of hand hygiene compliance in the two groups were investigated. In the 1st month after the beginning of training, both groups were cultivated by conventional propaganda and training methods. From the second month to the sixth month, the observation group was additionally trained to investigate hand hygiene pollution situation on the basis of conventional propaganda and training methods. After 6 months, the compliance rates of hand hygiene in the two groups were observed. Results Before training, there was no significant differences in the compliance rate of hand hygiene in the observation group and the routine trainning group [37.14% (52/140) vs. 36.36% (48/132), P > 0.05]. The compliance rates of hand hygiene after 1, 2, 3 months of training in the observation group were 56.61% (77/136), 60.61% (80/132) and 61.20% (82/134), respectively, and those in the routine trainning group were 56.25% (72/128), 59.26% (80/135) and 58.70% (81/138), which were all significantly higher than those before the training (all P < 0.05), but there were no statistical significant differences between the two groups (all P > 0.05). From the 4th month to the 6th month after training, the compliance rates of hand hygiene in the observation group were significantly higher than those in the observation group [61.97% (88/142) vs. 49.23% (64/130), 62.50% (80/128) vs. 47.73% (63/132), 62.31% (81/130) vs. 46.03% (58/126)], the differences between the two groups being statistically significant (all P < 0.05). Conclusion The routine training combined with hand contamination investigation survey training for consecutive 3 months can nicely promote the improvement of hand hygiene compliance of medical and nursing staffs.
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<p><b>OBJECTIVE</b>To explore the genetic basis for a couple with recurrent pregnancy loss by using single nucleotide polymorphism array (SNP array), chromosomal karyotype analysis, and fluorescence in situ hybridization (FISH).</p><p><b>METHODS</b>A SNP array was used for analyzing sample derived from the abortic tissue. The couple was analyzed with G-banded karyotyping and an Illumina Human CytoSNP-12 Beadchip assay. Based on the results, specific probes were designed to verify the chromosomal aberration by FISH.</p><p><b>RESULTS</b>The SNP array showed a 16.6 Mb duplication at 11q23.3-q25 and a 11 Mb deletion at 15q26.1-q26.3 in the abortic tissue. Combined with high-resolution G-banding analysis, the karyotype of the wife was verified to be 46,XX,t(11;15)(q24;q26.2). FISH analysis using probes for 11pter/11qter and 15qter confirmed that she has carried a balanced translocation, while the fetus has carried a derivative chromosome 15 derived from the maternal translocation.</p><p><b>CONCLUSION</b>SNP array can facilitate detection of balanced translocations which are difficult to be identified by conventional chromosomal karyotyping. The method does not necessitate cell culture and can well suit genetic analysis for couples with recurrent pregnancy loss.</p>
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Objective UPLC-MS/MS bio-analysis method was developed for the simultaneous determination ofberberine,naringin,hesperidin,and neohesperidin in plasma of rats.Methods UPLC Acquity BEH C18 (50 rmm × 2.1 mm,1.7 μm) column was used,mobile phases were containing 0.05% formic acid and 2 mmol/L ammonium formate in water (A)-containing 0.05% formic acid in acetonitrile (B) as the mobile phase gradient elution;SD rats were randomly divided into oral administration berberine group,Citrus aurantium extract group,and berberine and C.aurantium extract compatibility group.Results UPLC-MS/MS method could be applied to determination of berberine,naringin,hesperidin,and neohesperidin,method validation meets the requirements of biological sample analysis.When rats were administered with berberine and C.aurantium extract compatibility,the plasma concentration of berberine was much more than single dose of berberine group and the bioavailability of berberine was increased.Meanwhile,naringin and neohesperidin can be detected in rat's plasma.Conclusion The bioavailability of flavonoids is significantly improved as well compared to the single dose of C.aurantium extract.This suggests that berberine and C.aurantium extract compatibility has significant drug-drug interaction.
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Objective To sum up the experiences in liver transplantations from donation after brain death (DBD),and compare the clinical effect,complications and influential factors with international situation.Methods The retrospective descriptive study was adopted.All the data of 66 DBD liver donors and the matched recipients from authors' affiliations during June 2010 and June 2013 were collected.Original articles,meta-analysis and data reports with high academic influence were read and data were analyzed with SPSS 22.0.Results The incidence of serious complications,vascular complications and biliary complications during the first year among 66 recipients was 21.2%,10.6%,and 6.1%,respectively.Compared to international situation,graft 1-,3-,and 5-year survival rate was similar (P>0.05) (83%,80% and 73% respectively),similar to that of recipients.There was no statistically significant difference in primary nonfunction and vascular complications between our center and other centers.As for biliary complications,morbidity was lower in our center (P<0.05).The 3-and 5-year survival rate of recipients was also similar (P>0.05),though the 1-year survival rate was slightly lower (P< 0.05).Conclusion These findings provide evidence that patient's prognosis under DBD liver transplantation in our center is acceptable,and long-term survival rate has reached international level.Still,1-year survival rate of recipients is unsatisfactory.In order to achieve a good clinical efficacy,we need to find out disadvantages during donor maintenance,recipient selection,surgical procedure and postoperative management.
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A high throughput screening method based on QuEChERS purification and stable isotope dilution-liquid chromatography coupled to high resolution time-of-flight mass spectrometry was developed for the simultaneous rapid determination of 86 kinds of glucocorticoids (GCs) in cosmetics.The analytes were extracted by acetonitrile, and then the extracts were purified using an improved QuEChERS method.The chromatographic separation was performed on a novel multiple chromatographic retention mechanisms column of Poroshell 120 PFP (100 mm × 2.1 mm, 2.7 μm) with gradient elution using 0.2% (V/V) acetic acid and acetonitrile as mobile phase.The accurate mass database of parent ions and mass spectra library of fragment ions of 86 GCs were established under positive ionization mode with electrospray ionization source.Based on the method described above, the qualitative identifications of the 86 GCs were accomplished without the contrast of standard substances.The results demonstrated that the linear range of this method was from 2 μg/L to 200 μg/L with good correlation coefficients of R2>0.99.The average recoveries of the 86 GCs ranged from 66.2% to 112.8%, and the relative standard deviation (RSDs) was 4.6%-13.9% at three different spiked levels.The limit of detection (LOD) and quantification (LOQ) were 0.006-0.015 mg/kg and 0.02-0.05 mg/kg, respectively.The method is simple, efficient, reliable and accurate, and is suitable for high throughput screening of 86 GCs added illegally in cosmetics.
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Aim To observe the effect of gypenosides ( GP) on the expression of receptor for advanced gly-cated endproducts ( RAGE ) and transforming growth factor-β1 ( TGF-β1 ) in human mesangial cells( HMCs) induced by AGEs. Methods HMCs were cultured in DMEM of low glucose containing 15% fetal bovine ser-um in vitro, which were divided into four groups: the normal group, model group, GP group and positive control group. In addition to the normal group, the other groups were stimulated by AGEs ( 200 mg · L-1 );furthermore, GP group was intervened with dif-ferent concentrations(25,75,175 mg·L-1) of GP, while control group was given 10 mmol · L-1 of amin-oguanidine hydrochloride. The expression of RAGE and TGF-β1 protein of each group was detected by Western blot; the expression of RAGE and TGF-β1 mRNA of each group was detected by RT-PCR. Re-sults The expression of RAGE, TGF-β1 protein and mRNA in HMCs induced by AGEs in the model group was significantly higher than that of the normal group ( P<0. 01 );compared with the positive control group ( P<0. 01 ) , GP could obviously reduce the expression of RAGE, TGF-β1 protein and mRNA in a dose-de-pendent manner. Conclusion GP can reduce the ex-pression of RAGE in HMCs induced by AGEs, block AGEs-RAGE signaling pathway and decrease the ex-pression of the downstream factor TGF-β1 , therefore, it plays the role in the resistance of rennal fibrosis in DN.
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Classical piggyback liver transplantation (CPBLT) is an advanced technique based on standard orthotopic liver transplantation (SOLT),which has more advantages compared to the SOLT.However,there are still some problems with CPBLT to be solved,such as complicated surgical procedures,postoperative hepatic venous outflow obstruction and thrombosis.Recently,in order to solve these problems,modifications have been made,being named ameliorated piggyback liver transplantation (APBLT).The APBLT solved above-mentioned problems,and expanded the application of PBLT.Therefore,this article describes the technique of these ameliorations,and discusses their individual characteristics.
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China donation after citizens' death (CDCD) has already entered a new historical era,and the donation after brain death plus cardiac death (DBCD),which refers to the transition from brain death to cardiac death,is most widely used.The various pathological and physiological changes have an influence on donor organs,which could not be ignored.So the research on the effects of donor brain death for CDCD liver transplantation will be of great significance.Here we discussed the CDCD initiation and its classification,and the necessity and application of establishing a donation after brain death (DBD) animal model to clarify the relationship between DBD and CDCD liver transplantation and thus to enlighten future studies.
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Vascular complications after liver transplantation can seriously threaten the survival of patients.In the preoperative assessment and postoperative monitoring of patients' vascular conditions,although the digital subtraction angiography (DSA) is the golden standard for vascular lesion diagnosis,but not the first choice due to traumatic lesions.In some clinical circumstances,DSA can only be used when Doppler ultrasound,spiral CT,and MRI are not applicable,and in most cases DSA is used for treatment rather than diagnosis.This article reviewed the current interventional treatment of vascular complications to stress the important role of DSA in diagnosis and treatment of related complications after liver transplantation.
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Liver transplantation,a unique effective treatment for end-stage liver diseases,has already been applied in clinical practice for more than half a century.But the shortage of donor liver source has been the bottleneck limiting its development.How to determine the tiny minority donor liver quality to guarantee the prognosis of transplant patients becomes a hot focus for current research.Brain death causes patho-physiological changes of body organs,including liver.How to carry out related pathological and serologic tests to determine the safety of the donor liver is a very important issue.In this paper,the articles published in recent years were overviewed and analyzed to summarize the evaluation index of donating organ quality.We hope this paper may benefit the treatment through ensuring an effective evaluation on the donor liver in the future.
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This paper explored influences of situational teaching competition on improvement of pathology teaching effect.Students were grouped to create situational teaching works under teacher's guidance and finally competition was carried out.Teachers were invited to do the judgment and evaluation on pathology teaching was made through teachers' feedback and students' questionnaire survey.Results showed that during the process of situational teaching centered on students,teaching forms were diversified,teacher evaluation was high and students' responses were active.Application of situational teaching competition made exchanging the roles of teachers and students and teaching in joy,which on the one hand stimulated students' enthusiasm,initiative and creativity and on the other hand improved teaching level of teachers.Satisfactory teaching effects were achieved after using this method.
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Objective To explore the effects of Xiefuzhuyu decoction on myocardial cellar apoptosis and expression of ICAM-1 gene protein in rats of experimental acute ischemic myocardium. Methods The left anterior descending coronary artery was ligated to make a model of acute ischemic myocardium. The changes in myocardial cellar apoptosis and the ICAM-1 gene expression were detected. Results The number of myocardium cellar apoptosis in Xiefuzhuyu group and Diaoxinxiekang group were significantly less than those of ischemic model group respectively. The number of myocyte necrotic cell increased in ischemic group. At the same time, the expression of ICAM-1 supported this condition. Conclusion Xiefuzhuyu decoction and Diaoxinxiekang can protect ischemic myocardium.
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Objective: To study the relationship between emotional intelligence and coping style in middle-school students Methods:1281 middle-school students were measured by a questionnaire of EIS (Emotional Intelligence Scale) and CSSMSS (Coping Scale for Middle School Students) Results:(1)In the Emotional intelligence score, the students coming from city were higher than those from village and town,and children from single child family higher than children having siblings Further analysis showed primary middle school students had gender difference, while senior high school students did not (2)The common styles of middle school students coping frustration and trouble were problem-solving, withdrawal, tolerance, abreaction, help-seeking and fantasy (3)Emotional intelligence was positively correlated with six coping styles (r= 072~ 459), and problem-solving, help-seeking and withdrawal were main contributing factors to emotional intelligence Conclusion:Mood of middle school students is in fluenced by many factors including their coping style