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Objective:To describe demographic,clinical and physiological characteristics,treatment between first-episode major depressive disorder(MDD)and relapse MDD,and to explore characteristics of relapse MDD.Methods:Totally 858 patients who met the diagnostic criteria for depression of the Diagnostic and Statistical Manual of Mental Disorders,Fifth Edition(DSM-5),were included by using the Mini International Neuropsychiatric Interview(MINI),Clinician-Rated Dimensions of Psychosis Symptom Severity,and Hamilton Depression Scale etc.Among them,529(58.6%)were first-episode depression and 329(36.0%)were relapsed.The differences of demographic characteristics,clinical and physiological characteristics,treatment were compared byx2test and Kruskal-Wallis rank sum test.Multivariate logistic regression was used to explore the characteristics of MDD recur-rence.Results:Compared to first-episode MDD,relapse MDD had more comorbidity(OR=2.11,95%CI:1.00-4.44),more days out of role(OR=1.26,95%CI:1.01-1.56),more history of using psychiatric drug more than one month(OR=1.41,95%CI:1.02-1.97)and electroconvulsive therapy(OR=3.23,95%CI:1.42-7.36),and higher waist-hip ratio(OR=33.88,95%CI:2.88-399.32).Conclusion:Relapse MDD has positive as-sociation with comorbidity of mental disorders,out of role,and higher waist-hip ratio.
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Objective:To explore the effect of Baduanjin combined with limb function exercise on trunk control and living ability of stroke patients with hemiplegia.Methods:From September 2019 to March 2021, a total of 86 stroke patients with hemiplegia admitted into the First Affiliated Hospital of Zhengzhou University who met the inclusion criteria were selected and divided into the control group and the experimental group with 43 cases in each group according to the random number table method. The control group was given limb function exercise, while the experimental group was given Baduanjin combined with limb function exercise, and the intervention time was 6 weeks. The Trunk impairment scale (TIS), Berg balance scale (BBS), Fugl-Meyer assessment of motor function (FMA), Barthel index (BI) scores and the thicknesses of transverse abdominis and multifidus muscle were compared between the two groups before and after the intervention.Results:After the intervention, the TIS, BBS, FMA and BI scores of the experimental group were significantly higher than that of the control group [(19.52±2.68) vs (16.78±2.51) points, (43.19±5.03) vs (35.62±4.89) points, (71.24±7.39) vs (59.26±6.35) points, (69.52±6.81) vs (62.31±6.46) points], the thickness of transversus abdominis and multifidus were significantly greater than that in the control group [(2.76±0.39) vs (2.39±0.35) mm, (24.37±1.69) vs (23.67±1.45) mm] (all P<0.05). Conclusion:Baduanjin combined with limb function exercise can improve the trunk control ability, balance function, motor function and daily life ability of stroke patients with hemiplegia.
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Objective:To investigate the relationship between life events, cognitive emotional regulation strategies, neuroticism and depression in pregnant women and the internal mechanism of action.Methods:Short-term longitudinal follow-up design were used in this study.A total of 327 pregnant women in the third trimester of pregnancy were investigated with pregnant women's life events scale, cognitive emotion regulation strategy questionnaire, neuroticism subscale of Chinese big five personality questionaire-short form at T1 time point, and patient health questionnaire 9 were measured after 6 weeks(T2).SPSS 20.0 macro program PROCESS was used to examine the mediating effect of cognitive emotion and the moderating effect of neuroticism.Results:(1) The incidence of depression in the third trimester pregnant women was 12.23%.(2)There was significant positive correlation between the total score of life events in pregnant women(T1) and the total score of non-adaptive cognitive emotional regulation strategies(T1) ( r=0.25, P<0.01).Total neurotic personality(T1) and total depressive mood(T2) were significantly positively correlated ( r=0.46, P<0.01).The total scores of life events(T1) of pregnant women were significantly positively correlated with the total scores of depression(T2) ( r=0.36, P<0.01).(3) The non-adaptive cognitive emotion regulation strategy (T1) played a partial mediating role between life events (T1) and depression (T2).The direct effect (effect size=0.29) and the mediating effect (effect size=0.07) accounted for 80.55% and 19.44% of the total effect (effect size=0.36).(4) Neuroticism regulates the second part of the mediating effect of the mediating model.Specifically, the higher the level of individual neuroticism, the stronger the positive predictive effect of non-adaptive cognitive emotion regulation strategies on maternal depression. Conclusion:Pregnant life events play a role in maternal depression through the mediating role of non-adaptive cognitive emotional regulation strategies and the moderating role of neuroticism.
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Objective To OxplorO thO opOrating mOthods and clinical OffOcts of arthroscopic anatomical antO-rior cruciatO ligamOnt(ACL) rOconstruction with dirOct insOrtion tOchniquO vOrsus traditional mOthod.Methods From January 2017 to DOcOmbOr 2017,totally 52 patiOnts who accOptOd ACL rOconstruction and mOt thO inclusion and Oxclu-sion critOria in BOijing FriOndship Hospital of Capital MOdical UnivOrsity wOrO OnrollOd in this rOtrospOctivO study. ThOy wOrO dividOd into two groups by random sOquOncO softwarO and patiOnts′sOlOction rOsults. ThO obsOrvation group (27 casOs) rOcOivOd dirOct insOrtion tOchniquO,and thO control group(25 casOs) rOcOivOd traditional mOthod. At post-opOrativO 1 month, 3 months, 6 months, 1 yOar, thO clinical OffOct was OvaluatOd by imaging indOx, subjOctivO and objOctivO indicators.Results All 52 patiOnts wOrO availablO for follow up with an avOragO of 11.5 months. No postop-OrativO complications such as infOction, joint instability and soft lOgs, with a satisfiOd rOcovOry of rangO of motion, pain rOliOvOd significantly. ThO Lysholm scorO of thO obsOrvation group was (94.80 ± 4.18)points, which was signifi-cantly highOr than (91.02 ± 1.96)points of thO control group (t=2.674,P<0.05).Lachman tOst and KT-1000 wOrO improvOd significantly comparOd with thosO bOforO opOration ( all P <0.01), whilO thOrO was no statistically significant diffOrOncO bOtwOOn thO two groups(all P>0.05),but thO pivot-tOst of thO obsOrvation group was bOttOr than that of thO control group, thO diffOrOncO was statistically significant ( P < 0. 05 ). ThO ACL anglO of thO obsOrvation group was (51.52 ± 5.18)°, which was significantly lowOr than (55.86 ± 2.45)° of thO control group ( P<0.05). According to modifiOd Lysholm scorOs classification, in thO obsOrvation group, 24 casOs wOrO OxcOllOnt, 2 casOs wOrO good,1 casO was fair, and thO OxcOllOnt and good ratO was 96.3%. In control group,18 casOs wOrO OxcOllOnt,5 casOs wOrO good,2 casOs wOrO fair, and thO OxcOllOnt and good ratO was 92.0%. ThO diffOrOncO in thO OxcOllOnt and good ratO bOtwOOn thO two groups was statistically significant(P<0.05).Conclusion DirOct insOrtion anatomical rOconstruction is a safO and OffOctivO tOchniquO for rOconstruction of ACL. It can rOstorO thO stability of ACL and rotation of knOO joint.
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Objective To set up a standardized examination system for clinical internship at the de-partment level, and to evaluate the system using educational measurement method. Methods All the 327 clinical five-year and eight-year intern trainees who took clinical internship in the spinal orthopedics de-partment of a teaching hospital from July 1, 2014 to June 30, 2016 were selected as the research subjects. All the subjects took the standardized examination, educational and measurement methods such as general descriptive analysis, project relevance analysis and grader consistency analysis were executed to assess the content validity of the system, the relevance of the project and the consistency of the scorers. Statistical calculation was executed by SPSS 23.0 software. Results The average score of all 312 trainees included was controlled at (80.07±4.67), the lowest score was 70.01, and the highest score was 90.01, which reflected that the overall difficulty was moderate, the difference was reasonable and the scores were evenly distributed. To the theory, skills, medical records, teachers' score and the reward plus, normalized regression coeffi-cients were 0.479, 0.473, 0.118, 0.135 and 0.364 respectively, which were in good agreement with the scores of each item in the total score. To the theory, skills and teacher evaluation, the analysis of variance of the total score showed that the P values were both ≥0.05 with no significant difference between the groups, so the consistency of the scorers were satisfactory. The P values of variance analysis of the two items of the medical record and bonus points were 0.000 and 0.002 respectively, with significant differences among the groups, the scorers were less consistent. Conclusion The standardized examination system can meet the requirements of comprehensive, full-scale, quantitative and stable feedback teaching effect. The system of internship practice examination must be able to withstand continuous implementation and repeated correc-tion over many years, so as to ensure the teaching quality.
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Objective To explore the operating methods and clinical effects of reconstruction of anterior cruciate ligament with LARS artifical ligament. Methods From October 2012 to June 2015,the clinical data of twenty-four patients with arthroscopic reconstruction of anterior cruciate ligament with LARS artifical ligamennt in Capital Medical University Beijing Friendship Hospital Pinggu Hospital were analyzed retrospectively. All patients underwent anatomical and isometric reconstruction of anterior cruciate ligament to drill femoral and tibial tunnel. The recovery of knee joint function was evaluated by Lysholm scoring system,and the clinical effect was observed. Results All 24 patients were available for follow-up with an average of ( 22. 5 ± 1. 5) months. No wound infection occurred during the period. Joint instability and weak leg symptoms and knee pain were obviously improved,the scope of joint activities was increasing. The Lysholm scores improved from a preoperative score of (40.20±1.26) points to postoperative (92.20±2.18)points,and the difference between the two groups was statistically significant (t=2. 156,P<0. 05). According to the modified Lysholm scoring standard,among 24 cases,15 cases were excellent,7 cases were good,2 cases were fair,and the excellent and good rate was 91. 6%(22/24). Conclusion The reconstruction of the anterior cruciate ligament with LARS artificial ligament has the advantages of small trauma, definite curative effect and less complications. It can achieve the purpose of anatomic reconstruction of the anterior cruciate ligament and can effectively restore the stability of the knee joint.
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Objective To understand the changes in the level of osteocalcin (OC) in patients with type 2 di-abetes mellitus (T2DM) and discuss the correlation between the changes and glycated hemoglobin (HbA1c), fasting blood glucose (FBG),thyroid globulin (TG),total cholesterol (TC),high-density lipoprotein (HDL C),low density lipoprotein (LDL C),fasting insulin (FINS),and fasting C peptide (FCP) and so on.Methods 108 cases of T2DM patients were collected from group T2DM and 92 healthy subjects as healthy control group.Fasting venous blood was taken from the subjects and serum levels of OC were detected by chemilumi-nescence.HbA1c,FBG,TG,TC,HDL-C,LDL-C,FINS and FCP levels were detected,and Pearson correlation and logistic regression were used to analyze the relationship between OC and other indicators.Results The level of OC in the T2DM group was significantly lower than that in the control group,and the difference was statistically significant [(14.98 ± 10.16)ng/mL vs.(18.20 ± 6.67)ng/mL,P<0.05].There was a signifi-cant negative correlation between OC and HbA 1c and FBG in T2DM patients (P< 0.01),and a significant positive correlation with HDL C(P< 0.01);Logistic regression analysis showed that HbA 1c was an inde-pendent influence factor of serum OC(P<0.01).Conclusion The level of OC in peripheral blood of T2DM patients was significantly decreased.OC level was closely related to blood glucose and blood lipids,and it had a certain effect on the prevention and evaluation of T2DM.
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Objective To observe the effect of Shenqi Fuzheng injection combined with chemotherapy on reducing the side effects of malignant tumor chemotherapy. Methods Eighty cancer patients in Traditional Chinese Medicine Hospital of PLA General Hospital from January 2015 to March 2017 were randomly divided into treatment group and control group by using random number table method, each group contained 40 cases. The patients in the treatment group were given Shenqi Fuzheng injection combined with chemotherapy, while the control group used chemotherapy only. Results The incidence of WBC and Plt reduction in the treatment group [35.0 % (14/40), 32.5 % (13/40)] was lower than those in the control group [70.0 % (28/40), 57.5 % (23/40)], and the differences were statistically significant (χ 2= 9.825, P = 0.002;χ2=5.051, P=0.025). The incidence rates of digestive tract reaction and oral ulcers[52.5 %(21/40), 32.5 % (13/40)]were lower than those in the control group[75.0 %(30/40), 60.0 %(24/40)], and the differences were statistically significant (χ2= 4.381, P = 0.036; χ2= 6.084, P = 0.014). The quality of life in the treatment group was significantly improved compared with the control group [(51.4 ±5.1) points vs. (48.3±5.5) points], and the difference was statistically significant(t =2.595,P =0.011). Conclusions Shenqi Fuzheng injection combined with chemotherapy can reduce chemotherapy-induced side effects and improve the life quality of the patients.The injection can be used as the adjuvant therapy for chemotherapy in clinic application.
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Background To study the pathogenesis and management of diabetic retinopathy (DR) has an important clinical significance.With the development of biomedical photonics in recent years,photobiomodulation therapy has been paid more and more attention.However,the sudy on biological regulation of light to DR is rarely reported.Objective This study was to explore the photobiomodulating effects on the apoptosis of retinal neuronal cells induced by high glucose environment and tried to offer a basis for the management of DR.Methods The retinal neurons were isolated from Wistar rats using immunomagnetic beads and primarily cultured in Neurobasal,and the cells were identified by Nissl staining.The cells were divided into normal control group,high-glucose group and high-glucose+LED group.The glucose at the concentration of 25 mmol/L was added into medium for 48 hours in the high-glucose group,and the cells induced by high-glucose were irradiated in incubator by LED for consecutive 300 seconds per time in a 12-hour interval with the wavelength of 620 nm,maximal power of 1 W,central light radiation exposure of 6.67 mW/cm2 and spot diameter of 2.0 cm.The apoptosis rate of the cells was assayed by flow cytometry;the intracellular Ca2+ content was determined by laser scanning confocal microscope;the relative expression level of phosphorylated serine-threonine kinase (p-AKT) protein in the cells was detected by Western blot.Results The cells grew well 2-3 days after cultured with the polygon and oval shape,and nucleolus were visible.More neuronal processes were obtained in 5-7 days after culture.Nissl staining showed the blue violet color in cytoplasma of neurons.The proportion of neurons and glial cells was 91%.The apoptosis rates of the cells were (7.634±3.176)%,(33.642 ±9.315)% and (23.914±6.375)% in the normal control group,high-glucose group and high-glucose+LED group,respectively,and the apoptosis rates of high-glucose group and high-glucose + LED group were significantly higher than that in the normal control group,while the apoptosis rate in the high-glucose+LED group was lower than that in the high-glucose group (all at P<0.01).The fluorescence of Ca2+ in the cytoplasma was strong in the highglucose group and weak in the normal control group.The fluorescence pixel values in the high-glucose group and highglucose+LED group were significantly higher than that in the normal control group,and that in the high-glucose+LED group was reduced in comparison with high-glucose group (all at P<0.05).The expressing band of p-AKT protein was strong in the normal control group and weak in the high-glucose group.The relative expressing levels were 10.34± 3.18,2.16±0.46 and 7.15 ±1.72 in the normal control group,high-glucose group and high-glucose+LED group,and relative expression level of high-glucose+LED group was significatly lower than that in the high-glucose group (P< 0.05).Conclusions High-glucose environment inhibits PI3K/AKT pathway and calcium homeostasis of retinal neurons,which results in cell apoptosis.Low intensity of LED light irradiation activates the anti-apoptotic PI3K/AKT pathway and therefore reduces apoptosis induced by high glucose.
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Objective To investigate effects of interleukin-35 (IL-35) on proliferation,invasion and migration of a HepG2 cell line in vitro.Methods Enzyme-linked immunosorbent assay (ELISA) was used to determine peripheral blood expression levels of IL-35 in hepatocellular carcinoma patients and in normal healthy subjects.The effects of exogenous IL-35 on cell proliferation activity of HepG2 in vitro were measured using CCK-8 assay.The transwell invasion and scratch test were used to study the invasive and migration abilities.Results The content of IL-35 protein in hepatocellular carcinoma patients (HCC) was significantly higher than in healthy individuals [(118.45 ±28.66) ng/L vs (39.56 ± 11.15) ng/L,P <0.05].Exogenous IL-35 significantly promoted proliferation,invasion and migration abilities of HepG2 cells in vitro (P < 0.05).Conclusions The level of IL-35 was elevated significantly in hepatocellular carcinoma patients.IL-35 had biological characteristics of promoting HCC cell proliferation,invasion and migration.
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Objective To investigate the value of contrast-enhanced ultrasound (CEUS) in differential diagnosis of pancreatic pseudocysts,cystadenomas and cystadenocarcinomas,so as to improve diagnostic accuracy of the condition.Methods The results of CEUS and conventional ultrasound for 71 patients with pancreatic cystic lesions were analyzed retrospectively,and compared with the finally obtained surgical-pathological examination to assess the ability of qualitative diagnosis between two methods.Results In 71 pancreatic cystic lesions,there were 32 pancreatic pseudocysts,24 cystadenomas and 15 cystadenocarcinomas.The sensitivity and accuracy of CEUS for pancreatic pseudocysts and cystadenocarcinomas were 84.4%,93.0% and 86.7%,88.7%,which were higher than those of conventional ultrasound 56.3 %,80.3 % and 53.3 %,74.6% (x2 =6.06,4.92,3.97,4.71,all P < 0.05).Conclusion There are some similarities in terms of imaging manifestations among pancreatic pseudocysts,cystadenomas and cystadenocarcinomas.Combining conventional ultrasound with CEUS can help the differential diagnosis of pancreatic cystic lesions.
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Objective To investigate the protective effect of RLN revealed for RLN in high -risk thyroid surgery,and the clinical value of detecting nerve,thus to provide a reference for clinical treatment.Methods 132 patients of thyroid high -risk surgery were selected,according to whether to explode recurrent laryngeal nerve,they were divided into exposed group (80 cases)and non -exploded group(52 cases).The recurrent laryngeal nerve damage rate,clinical indicators of operation time were compared between the two groups.In the explode group,80 patients according to whether implementation of the nerve monitoring,were divided into the monitored group (36 cases)and non -monitored group(44 cases).The hours to find the nerve,recurrent laryngeal nerve injury rates and other indicators were compared.Results The operative time of the exploded group was (133.66 ±21.48)min,which was significantly longer than the non -exploded group,difference was statistically significant (t =3.994,P =0.025 ).The exposed group had similar incidence of hypocalcemia compared with the other groups,there was no statistically significant difference (P >0.05).The revealing recurrent laryngeal nerve injury rate of the exposed group was 2.50%,which was significantly lower than the non -exploded group,difference was statistically significant (χ2 =5.794,P =0.008).The recurrent laryngeal nerve positioning time of the monitoring group was (4.78 ±0.94)min,which was significantly shorter than the unmonitored group,difference was statistically significant (t =7.168,P =0.001).The recurrent laryngeal nerve injury rate of the monitoring group was 2.78%,showed no significant difference (χ2 =0.911,P =0.338).Conclusion In a high risk thyroid surgery,explode recurrent laryngeal nerve can reduce the rate of recurrent laryngeal nerve damage,nerve monitoring can effectively speed up the nerve localization time,but has no significant effect on reduce the rate of recurrent laryngeal nerve injury.
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Objective To compare the outcomes of arthroscopic coracoacromial ligament augmentation and clavicular hook plating in treatment of acromioclavicular joint dislocation.Methods From March 2008 to March 2012,47 patients with acute closed type Ⅲ-Ⅴ acromioclavicular joint dislocations underwent an arthroscopic repair with coracoacromial ligament augmentation and suture (ligament augmentation group,23 patients) and with AO clavicular hook plate (hook plate group,24 cases).Mean age of the patients (32 males and 15 females) was 34.8 years (range,17-45 years).There were 32 left and 15 right injuries.Postoperative outcome was assessed through radiographic examination,American Shoulder and Elbow Surgeon (ASES) score and Karlsson scoring method.Results Mean period of follow-up was 18 months (range,12-24 months).In ligament augmentation group ASES score improved from (28.7 ± 7.3) points preoperatively to (96.3 ± 6.9) points postoperatively (t =51.34,P < 0.05).In hook plate group ASES score improved from (29.3 ± 7.6) points preoperatively to (83.6 ± 8.5) points postoperatively (t =43.78,P < 0.05).Postoperative radiographic examination showed well joint reduction of all patients.Good and excellent results with the Karlsson score accounted for 96% (22/23) in ligament augmentation group and 71% (17/24) in hook plate group (x2 =9.05,P <0.05).Conclusions Efficacy of coracoacromial ligament augmentation and suture for the treatment of acromioclavicular joint dislocation is better than clavicular hook plate.Coracoacromial ligament augmentation and suture are associated with lower incidence of shoulder pain and shoulder activity limitation,shorter recovery time,fewer complications and early activities.
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Clinical tutor system is a unique exploration and practice with characteristics of our school,which has been carried out in the process of clinical course learning and clinical practice among eight-year-program clinical majors.Through analyzing and summarizing the implementation among 2005 and 2006 grade students,we found that the clinical tutor played an active role in cultivating students' clinical thoughts and personal ethics and in improving clinical ability and scientific ability.However,some problem were existed in tutors themselves-specialized major,busy,unclear cultivation objective,etc.Therefore,further improvement of the system was needed in order to better meet the needs of the eight-year-program medical talent training and to provide related references.
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Objective To investigate the clinical efficacy of integrated Chinese and western medicine for the treatment of anovulatory dysfunctional uterine bleeding. Methods A total of 108 anovulatory dysfunctional uterine bleeding patients were evenly randomized into treatment group and control group. Both groups were given basic conventional treatment, estrogen-progestogen sequential therapy for 3 menstrual cycles for dysfunctional uterine bleeding patients at puberty and child-bearing period, and Marvelon for patients at menopause transition period after excluding uterine tumor by diagnostic curettage. Additionally, the treatment group was given Chinese herbal decoction of Radix Rehmanniae Preparata, Semen Cuscutae, Fructus Corni, Placenta Hominis, Herba Ecliptae, Fructus Schisandrae Chinensis, Rhizoma Alismatis, raw Rhizoma Dioscoreae, Rhizoma Atractylodis Macrocephalae, Rhizoma Cyperi, Radix Codonopsis, Radix Astragali, Radix Angelicae Sinensis, Radix Paeoniae Alba, Pericarpium Citri Reticulatae, and charred Herba Schizonepetae. Therapeutic effect, bleeding-arresting time, and recurrence rate during 3-month follow-up were observed in the two groups. Results ( 1) The treatment group had a total effective rate of 100.0%, higher than 94.4%in the control group, the difference being significant (P<0.05). (2) Bleeding-arresting time was (45.50 ± 13.0) hours in the treatment group and was (58.0 ± 15.0) hours in the control group, and the difference was statistically significant (P<0.05). (3) During the 3-month follow-up, the treatment group had the recurrence rate of 16.7% ( 9 cases) , lower than 29.6% ( 16 cases) in the control group, and the difference was statistically significant ( P<0.05). Conclusion Integrated Chinese and western medicine has certain effect for the treatment of anovulatory dysfunctional uterine bleeding, showing good prospects for extensive application in gynecological clinic.
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Objective To explore the influence of salinomycin in the growth, apoptosis and invasion of human bladder cancer 5637 cells,and to clarify its possible mechanism.Methods The human bladder cancer 5637 cells cultured invitro at logarithmic growth phase were divided into control group and different doses of salinomycin(15, 30 and 60μmol·L-1 )groups.The inhibitory rate of the growth of 5637 cells in various groups was measured by MTT assay. Flow cytometry was used to detect the apoptotic rates of 5637 cells in various groups. The invasiveness of 5637 cells was tested by Matrigel Invasion Assay.The expression levels ofβ-catenin protein in 5637 cells in various groups were determined by Western blotting method. Results Compared with control group,the inhibitory rates of growth of human bladder cancer 5637 cells in different doses of salinomycin groups were increased significantly(P<0.05);the apoptotic rates were increased(P<0.05).the number of cells passed the Matrigel was decreased(P<0.05),and the expression level ofβ-catenin protein was decreased (P<0.05).Compared with low dose of salinomycin group,the inhibitory rate of growth of 5637 cells in high dose of salinomycin group was increased(P<0.05);the apoptotic rate was increased(P<0.05),the number of cells passed the Matrigel was decreased (P < 0.05 ), and the expression levels of β-catenin protein was decreased (P<0.05). Conclusion Salinomycin can inhibit the growth of 5637 cells significantly,increase the apoptosis,and decrease the cell invasion;the inhibitory effect may act by inhibiting the Wnt/β-catenin pathway.
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Objective To investigate the characteristics and neural mechanisms of visual attention dysfunction in patients with hypertension using the event related potentials(ERPs).Methods Visual Oddball pattern was adopted to analyze P3a and P3b components of 15 essential hypertensives and 15 normotensives,and all the participants were submitted to cognitive assessment by Mini-Mental State Examination (MMSE).Results ①Novelty stimulus:the mean amplitude of N2 in hypertensive patients ((1.56± 1.15) μV) was decreased than normal controls ((-2.19±1.15) μV,P<0.05),particularly at forehead-central sites (P<0.05).In addition,the amplitude of P3a of hypertensive patients ((6.27± 1.01) μV) was different from normal controls ((7.09± 1.01) μV),but there was no statistical significance(P>0.05).The latency of visual P3a was significantly longer in patients with hypertension group ((432.83 ± 8.22) ms) than that in control group ((403.10 ± 8.22) ms,P> 0.05).②Target stimulus:compared with control group ((6.75 ±0.90)μV),visual P3b amplitude in hypertension group ((4.08 ± 0.90) μV) was significantly declined (P< 0.05).Besides,the latency of visual P3b of hypertensive patients ((440.70 ± 6.42) ms) was different from normal controls ((436.91±6.42) ms),but there was no statistical significance(P>0.05).③Compared with control group (27.31± 1.22),the M MSE score of patients with hypertension (24.55±2.42) was decreased (P<0.05).The amplitude of visual P3b was positively correlated with MMSE scores in parietal region(r=0.51,P<0.05).Conclusions The abilities of visual involuntary attention and voluntary attention are damaged in patients with hypertension,the impact degree of hypertension on two kinds of attention and the neural mechanisms are different.Moreover,there is a significant positive correlation between the amplitude of visual P3b and MMSE,which prompts that visual P3b for clinical early assessment of attention in patients with hypertension provides more objective neurophysiological basis.
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Eight-year program education is the heated topic in the field of medical education across the country.The system of eight-year program education can be discussed as a system,from the view of system philosophy.We analyzed beth internal relationships and external relationships connected to the system,so as to look upon the eight-year program education in its entirety.And then we discussed about the problems of epistemology and methodology on that basis.
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The authors of this paper confirm the goal, factors and principles in arrangement of clinical practice, design a transplacement algorithm to solve the model, and after estimating the capacity to interns of affiliated hospital, make the schedule by that algorithm so as to relieve the relative short supply of good clinical education resourses.
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In order to investigate the application of standard score in the examination of eight-year program's clinical practice and to keep consistency of learning level among groups, we translate the original scores into standard scores and discuss the results and how to define the excellent grade so that the scores may have more comparability.