1.Research on the index system for assessing maternity and child care institutions in Beijing
Yanhong SHEN ; Wenhu CHANG ; Yingchun PENG
Chinese Journal of Hospital Administration 1996;0(06):-
The paper describes the basis, scope, and contents of the index system for assessing maternity and child care institutions in Beijing. The new system, based on the readjustment, recombination and redistribution of the original index system for assessment, has two newly added elements, viz. financial position analysis and leadership style and organization culture. In order to make a distinction between leaders' responsibilities and an institution's orientations and to reduce behavior abnormality and information bias in the process of assessment, the new system has been divided into two major parts: evaluation of the institution's conditions for survival and capabilities for development, which is jointly decided by internal and external factors, and appraisal of the institution's performance, which is decided mainly by internal factors.
2.Event-related potential study on the semantic and phonological priming with spoken two-character Chinese words
Yong Lü ; Yingchun DU ; Juan SONG ; Deli SHEN
Chinese Journal of Tissue Engineering Research 2007;11(22):4451-4456
BACKGROUND:Researchers have done much work to investigate semantic priming with event-related potentials (ERPs) method. The ERPs component of N400 is of great importance in this research domain. N400 is a negative wave occurs at about 400 ms after the stimulus onset. It has been accepted that N400 represents the processing of semantic information. In many studies, amplitude of N400 could be reduced by semantic priming. Relatively, ERPs studies on phonological priming, especially by auditory stimuli, deserve to be further investigated. OBJECTIVE: To investigate the EPR characteristics of semantic and phonological priming with spoken two-character Chinese words, and also to testify theories about auditory word recognition.DESIGN: Repeated measurement experiment.SETTING: Center for Psychology and Behavior Studies, Tianjin Normal University. PARTICIPANTS: This experiment was carried out between August and October 2003 in Tianjin Normal University. Seventeen healthy college students (8 male and 9 female, age ranging from 19 to 23 years) with no hearing defect were involved in this experiment. All of them were Chinese native speakers. All except one male participant were right handed. Informed consents of detected items were obtained from all the participants.METHODS: In the study, lexical dicision task which required participants was used to judge if the latter words were real words or pseudowords in the auditorily presented word-pairs by pressing buttons. The stimuli materials were 640 two-character word-pairs including semantic related, initial phonological overlap, final phonological overlap, phonological and semantic unrelated and word-pseudoword (control) conditions. These five kinds of word-pairs presented randomly in the experiment. The presentation of stimuli and recording of behavioral data were realized by STIM software. The error rate and mean reaction time (RT) of reaction of subjects were calculated under four experimental conditions. The word-pseudoword items were not included in the analysis (just served as fillers). EEG were recorded referring to linked mastoids with Scan 4.3 software made by Neuroscan company in America. Participants wore the Quick-Cap32 electrode cap (International 10/20 System). EEG data were amplified and acquired with a sampling rate of 500 Hz. Offline exclusion of occular artifacts was done on the acquired continuous EEG data after experiment. Then the EEG data were segmented to epochs of 1 700 ms, each epoch was time-locked to the onset of target stimulus with a 200 ms pre-target baseline. Then the operation of baseline (with a 200ms pre-target baseline), artifact rejection (epochs with amplitude exceeded the range of -100 μV to +100 μV were rejected) and average were realized. MAIN OUTCOME MEASURES: Error rate, reaction time and caused N400 waveform change of target words under different experimental conditions.RESULTS: Data from 17 subjects were involved in the final analysis. The error rate of subjects under semantic related condition was lower (P< 0.05) while RT was shorter (P< 0.01) than that under phonological and semantic unrelated condition. The error rates of subjects under initial phonological overlap and final phonological over lap conditions were higher than that under phonological and semantic unrelated condition (P < 0.01). The error reactions were discarded and the mean value of RT under 4 conditions (semantic related, initial phonological overlap, final phonological overlap and phonological and semantic unrelated) were 830 ms, 891 ms, 864 ms and 903 ms, respectively. There were significant differences of error rate and RT between semantic related and phonological and semantic unrelated conditions (P < 0.01). Error rate and RT under final phonological overlap condition were significantly different from those under initial phonological overlap and phonological and semantic unrelated conditions (P < 0.01). Since the largest amplitude of N400 occurred at FCZ electrode, FCZ was chosen for analyzing the effects under four different experimental conditions. The LSD multiple comparison showed that amplitude under control condition was significantly higher than that under semantic related condition (P < 0.01). Latency under the control condition was the longest, then decreased gradually according to the sequence of semantic related, final phonological overlap and initial phonological overlap condition. As the results of LSD multiple comparison revealed, initial phonological overlap condition had a tendency of shortened latency, with significant difference when compared with control condition (P < 0.05). Another five electrodes were selected besides FCZ standing for anterior, parietal, posterior, left and right brain area in order to investigate the scalp distribution difference of N400 under different experimental conditions. Two factors repeated measured ANOVA (Analysis of variance) was carried out for amplitude analysis, with different experimental conditions (4 levels) as the first factor and electrode positions (6 levels) as the second factor. The main effect of electrode positions was significant [F(5,80)= 13.376, P =0.000]. Among the chosen electrodes, FCZ had the largest amplitude (-7.946 μV), the second was CZ (-7.285 μV) and the other top-downsequence was FZ (-6.849 μV), PZ (-4.324 μV), T8 (-3.501 μV ) and T7 (-3.484 μV), respectively. Results of LSD multiple comparison revealed that the amplitude of FCZ was higher than all other electrodes but CZ. CONCLUSION: Two-character Chinese words presented auditorily in lexical decision task. Semantic relationship can facilitate the recognition of target words, which is shown by lower error rate, shorter RT and decreased amplitude of N400 component. Phonological congruence between prime and target words has both facilitory and interferential effects on target words, which is shown by increased error rate, shorter RT and the tendency of decreasing N400 amplitude.Interferential effect of initial phonological overlap between prime and target words is stronger than that of final phonological overlap. This finding provides evidence for initial phonological information's special function during auditory word recognition which is supported by Cohort Theory. No evidence for the existence of separate intracranial sources of semantic priming and phonological priming has been found. However, Cohort Theory should be revised while applying to the recognition of two-character words of Chinese.
3.Level of Serum Creatinine in Patients with Spinal Cord Injury
Zhimei SU ; Shengjie LUO ; Yingchun MA ; Shen MENG ; Hongjun ZHOU
Chinese Journal of Rehabilitation Theory and Practice 2010;16(12):1154-1156
ObjectiveTo investigate the value of serum creatinine(SCr) to monitor the renal function of patients with spinal cord injury(SCI).Methods1298 SCI patients were investigated in Beijing Charity Hospital from January 2004 to May 2009. 249 healthy people were involved as control. The data of SCr were analysed.ResultsThe level of SCr for the SCI patients was (56.81±14.33) μmol/L with normal distribution, 95% CI was 28.73~84.89 μmol/L; The level of SCr for the healthy people was (75.98±11.34) μmol/L, 95% CI was 57.36~101.80 μmol/L. The level of SCr was significantly lower in the SCI patients comparing to the healthy people (P<0.01). Among the SCI patients, the level of SCr was (59.59±13.76) μmol/L for male while (46.41±11.31) μmol/L for female(P<0.05). There was no difference in level of SCr among different ages of the SCI patients(P>0.05). The characteristics were likely in the two groups. There was no difference in level of SCr between paraplegic (55.54±14.96) μmol/L and quadriplegic (57.67±13.83) μmol/L (P>0.05).ConclusionThe characteristics of level of SCr were likely in SCI patients and healthy people with normal distribution. The level of SCr was lower in SCI patients comparing to healthy people, which was higher for male SCI patients comparing to female SCI patients.
4.Building and use of the appraisal indicators system of hospitals brand effect
Fei YU ; Jie CHEN ; Ke FEI ; Yingchun SHEN ; Wei JIANG ; Yuelong JIAO
Chinese Journal of Hospital Administration 2011;27(2):132-134
Literature review of the world on hospital brands, data collection in summary and comparison, and specialist consultancy were used to set the appraisal indicators, while the stratum analysis was used to calculate the weight coefficients of individual indicators, for building the appraisal indicators system for hospital brand effect. In addition, the indicators system and appraisal model were called into play to explore the use of hospital brands, offering scientific references for hospital management.
5.Expression of ATRX in different central nervous system tumors and the usefulness in differential diagnosis
Mingliang CHU ; Zhuxue ZHANG ; Yun ZHANG ; Yingchun YANG ; Hede SHEN ; Wei YI
The Journal of Practical Medicine 2016;32(18):3026-3029
Objective To investigate the expression of α-thalassemia/mental retardation syndrome X-linked (ATRX) in different central nervous system tumors and the meaningness in differential diagnosis. Methods Expression of ATRX protein was determined by immunohistochemistry in astrocytomas , oligodendrogliomas, glioblastomas, ependymomas and meningiomas. Results Positive expression levels of ATRX in astrocytomas were significantly lower than those in oligodendrogliomas,glioblastomas, ependymomas and meningiomas (all P <0.01). Conclusion The loss of ATRX was mainly occurred in astrocytomas, which could be as a astrocytoma marker in diagnosis.
6.Effects of butylphthalide on cognitive function, apoptosis and p-p38MAPK expression in hippocampus of rat model of vascular dementia
Shen YANG ; Yingchun LIANG ; Xiumei YAN ; Lei ZHANG ; Fangbo NING ; Lichen QIN ; Yunlin LIU
Chinese Journal of Behavioral Medicine and Brain Science 2014;23(4):300-302
Objective To study the effects of butylphthalide on cognitive function,apoptosis and pp38MAPK in hippocampus of rat model of vascular dementia.Methods The vascular dementia (VD) model was established by two vascular (2VO) method,and then sixty male Wistar rats were randomly divided into VD group,sham operation group and NBP (butylphthalide) group.Rats in NBP group were given 120 mg · kg-1 · day-1 dose butylphthalide by gavage,and rats in VD group and sham operation group were given the same dose vegetable oil.The cognitive function of each rat was tested by Morris water maze.The expression of p-p38MAPK in the hippocampus was observed by Western blot;and the apoptosis was observed in hippocampal CAl region by TUNEL staining.Results The hidden platform escape latency of NBP group ((48.72 ± 7.01) s,(42.41 ± 4.06) s,(40.34 ± 2.46) s)was significantly shortened compared with those of VD group((82.71±8.27) s,(80.36±9.65) s,(77.74±6.33) s)(P< 0.01) ; and the former platform quadrant time and the number of passing through the platform of NBP group ((26.45±4.66)s,(1.84±0.82) times) were significantly prolonged (P<0.01) compared with those of VD group ((18.67±5.39) s,(1.32±0.61) times);the apoptosis and the expression of p38MAPK phosphorylation in hippocampus in NBP group ((153.65±9.85),(0.42±0.04)) significantly reduced (P<0.01) compared with those of VD group ((209.46±11.49),(0.88±0.10)).Conclusion Butylphthalide can improve the learning and memory ability of VD rats,the reduce apoptosis in the hippocampus by the inhibition of the P38MAPK pathway.This may be one of the ways by which butylphthalide can treat vascular dementia.
7.Curative effect of ulinastatin against toxic acute kidney injury in rats
Jianming SHEN ; Yanyan DENG ; Shaoxia ZHANG ; Shaojiang TIAN ; Liping WANG ; Junfeng LI ; Yingchun ZHANG
Chongqing Medicine 2014;(29):3929-3931,3934
Objective To explore the curative effect of ulinastatin against toxic acute kidney injury(AKI) in rats and its mecha-nism .Methods Twenty-four male SD(Sprague Dawley) rats were randomly divided into 3 groups ,control group ,model group and treatment group with 8 rats in each group .Rats were subcutaneously injected gentamicin(300 mg/kg of body weight per day) for 3 days to establish models of toxic AKI .Rats in treatment group were intraperitoneally injected with a 7-day course of ulinastatin(30 000 U/kg of body weight per day) from 4th day .Dectetion of serum level of creatinine and Cystatin-C(Cys C) ,urinary concentra-tion of kidney injury molecule-1 (Kim-1 ) and neutrophil gelatinase-associated lipocalin (NGAL ) ,activity of superoxide dismutase (SOD) and glutathione peroxidase(GSH-Px) ,content of malondialdehyde ,levels of tumour necrosis factor-alpha(TNF-α) and inter-leukin-1β(IL-1β) in homogenate of renal tissues as well as observation of renal pathological changes and semiquantitative score in each group were conducted on 11th day .Results In model group ,degeneration and necrosis of renal tubular epithelial cell ,dilatation of renal tubular cavity and inflammatory cell infiltration in renal interstitial were observed .Renal pathological changes were milder in treatment group ,when compared with the model group .Renal pathological semiquantitative score ,serum level of creatinine and Cys C ,urinary concentration of Kim-1 and NGAL ,content of malondialdehyde ,levels of TNF-α and IL-1β in homogenate of renal tissues were higher in model group than in control group ,while those in treatment group were lower than in model group(P<0 .01 , respectively) .And activity of SOD and GSH-Px in homogenate of renal tissues were lower in model group than in control group ,and those in treatment group were higher than in model group and control group(P<0 .01 ,respectively) .Conclusion Ulinastatin pos-sesses a curative role in toxic AKI in rat via inhibiting oxidative stress and down-regulating levels of proinflammatory factor in renal tissues .
8.Expression of receptor tyrosine kinase EphA7 in gastric carcinoma and its clinical significances
Jiandong WANG ; Guoli LI ; Henghui MA ; Xulin WANG ; Zheng SHEN ; Qiu RAO ; Minhong PAN ; Zhiyi ZHOU ; Yingchun DONG ; Xiaojun ZHOU
Journal of Medical Postgraduates 2003;0(03):-
Objective:Eph is the largest member of the family of receptor tyrosine kinases (RTK). Hypermethylation of CpG island is an important mechanism leading to down-regulation of EphA7 in gastric cancer. The objective of this study is to investigate the expression level of EphA7 in gastric carcinoma and its roles in the development,progression and prognosis of gastric carcinoma. Methods:The expression level of EphA7 transcript in gastric carcinoma specimens and normal mucosa tissues was detected using real-time RT-PCR. Results:The expression level of EphA7 in gastric carcinoma was divided into three groups according to the expression rate in gastric cancer tissue and matched normal mucosa. Statistics analysis showed that the expression of EphA7 is significantly related to age and stage. Overexpression of EphA7 has a tendency to relate to metastasis. Conclusion:EphA7 is differentially expressed in gastric carcinoma specimens. Overexpression of EphA7 may play a role in the development and progress of gastric carcinoma.
9.Studies on the mechanism of Syk and JNK in the heart tissue of type 1 diabetic rats
Yufeng CHEN ; Guangfeng LONG ; Xixi TIAN ; Yingchun QIAO ; Shengyu LI ; Meiting XUE ; Yunde LIU ; Yujie CUI ; Yanna SHEN
Tianjin Medical Journal 2017;45(5):463-467
Objective To investigate the expressions of spleen tyrosine kinase (Syk), c-Jun amino terminal kinase (JNK) and nucleotide binding oligomerization domain-like receptor protein 3 (NLRP3) inflammasome in the heart tissue in SD rat model of diabetic cardiomyopathy, and to explore the relationship between Syk, JNK and NLRP3. Methods Clean male SD rats were randomly divided into the control (Ctrl) group and diabetic cardiomyopathy model (DCM) group. Rats of DCM group were treated with a single intraperitoneal injection of streptozotocin (STZ), while rats of Ctrl group were injected with the same dose of citrate buffer. The random blood glucose level and body weight were monitored every week until 20 weeks after STZ or citrate buffer injection, then all the rats were killed and their hearts were obtained. Rat H 9c2 cardiomyocytes were randomly divided into normal glucose treatment (NG) group, high glucose treatment (HG) group, Syk inhibitor control (BAY) group and Syk inhibitor high glucose (HG+BAY) group. The Syk and JNK phosphorylations and NLRP3 protein expression were detected by Western blot assay in the heart tissue of SD rats and H9c2 cardiomyocytes. The NLRP3, cysteine-containing aspartate specific protease 1(caspase-1) and interleukin (IL)-1β expressions at mRNA level were detected by reverse transcription-polymerase chain reaction (RT-PCR). Results The random blood glucose level was significantly increased (P<0.05) and the body weight was significantly decreased (P<0.05) in DCM group compared with those of Ctrl group. The expressions of cardiac p-Syk, p-JNK and NLRP3 at protein level were significantly increased in DCM group compared with those of Ctrl group (P<0.05). Furthermore, the mRNA levels of NLRP3, caspase-1 and IL-1β were significantly up-regulated (P < 0.05). BAY treatment significantly inhibited the high glucose-induced NLRP3, caspase-1 and IL-1β mRNA expressions and p-JNK, NLRP3 protein expressions in H9c2 cardiomyocytes (P < 0.05). Conclusion JNK phosphorylation and NLRP3 inflammasome activation induced by Syk play an important role in the pathogenesis of diabetic cardiomyopathy.
10.Application of transcranial sonography in the assessment of substantia nigra echo in children with attention deficit hyperactivity disorder
Bing MA ; Yaohong SHEN ; Yan CHEN ; Junyi ZHU ; Caishan WANG ; Yingchun ZHANG
Chinese Journal of Ultrasonography 2024;33(1):42-48
Objective:To determine the clinical application value of transcranial sonography (TCS) in the diagnosis of attention deficit hyperactivity disorder (ADHD) in children.Methods:A total of 50 children aged 6-12 years diagnosed with ADHD (ADHD group) and 45 age-matched healthy children (control group) who presented to Suzhou Municipal Hospital and Children′s Hospital of Soochow University from August 2021 to August 2022 were prospectively enrolled for TCS examination. ADHD was diagnosed in accordance with the Diagnostic and Statistical Manual of Mental Disorders, fifth edition (DSM-Ⅴ) criteria established by the American Psychiatric Association.Based on clinical symptom characteristics, ADHD was further classified into 3 subtypes, including 14 cases of predominantly inattentive, 3 cases of predominantly hyperactive/impulsive, and 33 cases of combined presentation. The substantia nigra(SN) hyperechoic area and the ratio of SN hyperechoic area to midbrain area (S/M) were measured and compared between the two groups. The examination of the correlation was performed between SN hyperechoic area, S/M ratio, and DSM-Ⅴ scores within the ADHD group.Results:Semi-quantitative analysis: the proportion of the SN grade Ⅲ or more in ADHD group was significantly higher than that in control group [96.00%(48/50) vs 13.3%(6/45), P<0.05]. Quantitative analysis: the area of SN hyperechogenicity and the ratio of S/M were significantly larger in ADHD group than in control group [0.32(0.22, 0.38)cm 2 vs 0.00(0.00, 0.00)cm 2, 7.08(5.11, 8.75)% vs 0.00(0.00, 0.00)%, all P<0.05]. Correlation analysis: The SN hyperechoic area and S/M ratio showed no significant correlations with DSM-Ⅴ scores in the ADHD group ( r=0.144, 0.142, all P>0.05). Conclusions:TCS can detect the SN echo enhancement of ADHD children, and the proportion of SN echo enhancement, SN hyperechoic area and S/M ratio are significantly higher than those of normal children, but the SN hyperecho area and S/M ratio are not significantly correlated with DSM-Ⅴ scores.