Effect of transference for pain on prosocial tendency in medical students: the moderating role of attentional bias / 中华行为医学与脑科学杂志

Objective:To explore the relationship between medical students' pain empathy response(pain emapthy) and prosocial tendency, and the moderating effect of attentional bias.Methods:In April 2022, 108 medical students were evaluated by the general characteristics survey questionnaire, pain empathy scale (EPS), and prosocial tendencies measure (PTM). The E-Prime dot probe task paradigm experiment procedure was used to evaluate the attentional bias of all participants. SPSS 24.0 was used for descriptive statistics, correlation analysis, stratified regression analysis, and repeated measure ANOVA. PROCESS 3.4.1 was used for moderating effect analysis.Results:(1)The pain transference score of female medical students was significantly lower than that of male(3.46±0.67, 3.95±0.51)( t=3.54, P<0.05). Medical students with chronic pain had significantly lower scores than those without chronic pain(3.28±0.84, 3.66±0.60)( t=-2.35, P<0.05). There was significant difference in prosocial tendency among medical students of different majors( χ2=6.62, P<0.05). (2)There was positive correlation( r=0.39, P<0.001) between their transference for pain(3.59±0.66) and prosocial tendency(3.60±0.50) in medical students. (3)Transference for pain could significantly positively predict prosocial tendency in medical students ( B=0.26, P<0.001). The attention bias of medical students to sadness in pain situation (d pain sadness) played a moderating role between transference for pain and prosocial tendency( B=0.01, P<0.05). Conclusion:The level of medical students’ transference for pain can significantly predict their prosocial tendencies, and improving medical students’ attention to sadness in pain situations is beneficial to exert the effect of transference for pain on prosocial behaviors.

Effects of electroacupuncture frequency on nerve function and synaptic associated proteins PSD-95 and GAP-43 in rats with cerebral ischemia / 国际中医中药杂志

Objective:To observed the effects of electroacupuncture frequency on the nerve function and postsynaptic destination-95 (PSD-95), growth associated protein-43 (GAP-43) in brain tissue of rats with cerebral ischemia were observed.Methods:Healthy adult male SD rats were randomly divided into the blank group, sham operation group, model group and 2 Hz, 50 Hz, 100 Hz electroacupuncture groups. MCAO models were prepared in each group, except blank group and sham operation group. After modeling, Qiansanli and Waiguan acupoints were given stimulation with 2 Hz, 50 Hz and 100 Hz respectively in 2 Hz electroacupuncture group, 50 Hz electroacupuncture group and 100 Hz electroacupuncture group, 1 time/d and 20 min/time for 21 consecutive days. All groups were scored by Bederson score on the 1st, 3rd, 7th, 14th and 21th day after operation. The ultrastructure of synapses was observed by transmission electron microscope, and the positive expression of PSD-95 and GAP-43 was detected by immunohistochemistry. Results:After modeling 7, 14 and 21 days, compared with the model group, the Bederson behavioral score (1.70 ± 0.52 vs. 2.40 ± 0.56, 1.20 ± 0.65 vs. 2.30 ± 0.46, 0.70 ± 0.72 vs. 2.00 ± 0.86) in 50 Hz electroacupuncture group significantly decreased ( P<0.01 or P<0.05). The expression of PSD-95 (58.67 ± 1.72, 55.22 ± 2.45, 60.10 ± 2.49 vs. 70.87 ± 2.34) intergral optical density of rats’ cortex in 2 Hz, 50 Hz, 100 Hz electroacupuncture groups significantly decreased ( P<0.01), the expression of GAP-43 in 2 Hz and 50 Hz electroacupuncture groups (58.89 ± 1.28, 64.76 ± 3.94 vs. 53.24 ± 2.58) significantly increased ( P<0.01). Conclusions:Electroacupuncture with different frequency can improve motor nerve disfunction of cerebral ischemia rats, and 50 Hz electroacupuncture group showed the most obvious effect. It can regulate PSD-95 and GAP-43 expressions of ischemic area, lower neural excitatory toxicity, increase neuronal axon regeneration and exert the neural protect function.

One-stage repair of soft tissue defects in open leg fracture / 中华创伤骨科杂志

Objective@#To evaluate one-stage repair of leg open fracture with soft tissue defect by fixation plus skin flap.@*Methods@#From January 2011 to January 2018, 34 patients with leg open fracture plus soft tissue defect were treated at Department of Orthopedics, The Second Affiliated Hospital to Harbin Medical University. They were 31 males and 3 females, aged from 13 to 54 years(average, 35 years). According to the Gustilo classification, the defects were type ⅢA in 31 cases and type ⅢB in 3 cases. The wound size ranged from 6 cm×3 cm to 25 cm×10 cm. All patients were treated with emergency fracture fixation and flap repair by one stage after thorough debridement. Internal bone plating was performed in 32 patients and external fixation at a single arm in 2 patients. All defects were repaired with a free anterolateral thigh flap. Flap survival, vascular crisis and bone infection were followed up postoperatively.@*Results@#All the free flaps survived in the 34 cases with no vascular crisis. These patients were followed up for 6 months to 3 years (average, 10 years). The flaps healed well, with good appearance and soft texture. No bone infection occurred at the defective sites. After postoperative rehabilitation, the knee extension ranged from 160° to 180°, knee flexion from 90° to 110°, ankle dorsal extension from 90° to 110°, and ankle plantar flexion from 100° to 120°.@*Conclusion@#Soft tissue defects in leg open fracture can be effectively treated by flap repair after thorough debridement at the same time of fracture fixation, because the primary wound healing can avoid infection and lead to fine survival of the flap.

One-stage repair of soft tissue defects in open leg fracture / 中华创伤骨科杂志

Objective To evaluate one-stage repair of leg open fracture with soft tissue defect by fixation plus skin flap.Methods From January 2011 to January 2018,34 patients with leg open fracture plus soft tissue defect were treated at Department of Orthopedics,The Second Affiliated Hospital to Harbin Medical University.They were 31 males and 3 females,aged from 13 to 54 years(average,35 years).According to the Gustilo classification,the defects were type ⅢA in 31 cases and type Ⅲ B in 3 cases.The wound size ranged from 6 cm × 3 cm to 25 cm × 10 cm.All patients were treated with emergency fracture fixation and flap repair by one stage after thorough debridement.Internal bone plating was performed in 32 patients and external fixation at a single arm in 2 patients.All defects were repaired with a free anterolateral thigh flap.Flap survival,vascular crisis and bone infection were followed up postoperatively.Results All the free flaps survived in the 34 cases with no vascular crisis.These patients were followed up for 6 months to 3 years (average,10 years).The flaps healed well,with good appearance and soft texture.No bone infection occurred at the defective sites.After postoperative rehabilitation,the knee extension ranged from 160° to 180°,knee flexion from 90° to 110°,ankle dorsal extension from 90° to 110°,and ankle plantar flexion from 100° to 120°.Conclusion Soft tissue defects in leg open fracture can be effectively treated by flap repair after thorough debridement at the same time of fracture fixation,because the primary wound healing can avoid infection and lead to fine survival of the flap.

Clinical value of 18F-FDG PET/CT in assessing muscular inflammation of dermatomyositis / 中华核医学与分子影像杂志

Objective@#To analyze the imaging characteristics and diagnostic value of 18F-fluorodeoxyglucose (FDG) PET/CT in muscular inflammation in dermatomyositis (DM), as well as the relationship between maximum standardized uptake value (SUVmax) and activity of muscular inflammation.@*Methods@#From July 2013 to November 2016, 17 hospitalized DM patients (8 males, 9 females, age range: 35-78 years) who underwent 18F-FDG PET/CT were retrospectively reviewed, including 13 typical DM (TDM) and 4 amyopathic DM (ADM). Seventeen healthy volunteers (8 males, 9 females, age range: 35-78 years) in the same period were enrolled as the control group. The proximal limb muscles of whole body were divided into 7 areas, and the SUVmax of each was measured and recorded. Two-sample t test, one-way analysis of variance, Dunnett-t test and Spearman correlation analysis were used to analyze data.@*Results@#Five TDM cases showed diffuse increased FDG uptake in global muscles; 8 TDM cases showed increased FDG uptake in local muscles, mainly in the shoulder and hip. The FDG uptake by muscles of 4 ADM patients was similar with that of controls. The SUVmax was lower and lower in the order of shoulder and back muscles, hip muscles, thoracic vertebra muscles, cervical vertebra muscles, biceps, proximal quadriceps and lumbar vertebra muscles in DM group. The muscle SUVmax of DM, TDM, ADM and the controls were 1.92±0.86, 2.14±0.85, 1.19±0.44 and 0.93±0.26, respectively (F=69.50, P<0.001). Muscle SUVmax of DM group was higher than that of controls, muscle SUVmax of TDM was higher than that of ADM, and muscle SUVmax of ADM was higher than that of controls (t values: 4.102-11.970, all P<0.05). Muscle SUVmax of 9 DM patients with interstitial lung disease (ILD) was lower than that of patients without ILD (1.73±0.09 vs 2.13±0.13; t=5.857, P<0.001). Muscle SUVmax of DM was positive correlated with serum levels of creatine kinase (CK) and creatine kinase isoenzyme composed by M and B subunits (CK-MB) (rs values: 0.814 and 0.751, both P<0.001).@*Conclusion@#18F-FDG PET/CT is helpful to detect muscular inflammation of DM and it can reflect the activity and severity with SUVmax, and meanwhile evaluate the condition of ILD associated with DM.

Therapeutic effect of acupoint injection and rehabilitation training program on upper limb function and daily life activities of patients with shoulder-hand syndrome after cerebral hemorrhage / 国际中医中药杂志

Objective To investigate the effect of acupuncture point injection and rehabilitation on the functional recovery of upper limbs and daily living ability of shoulder-hard syndrom (SHS) after cerebral hemorrhage. Methods A total of 96 patients SHS after cerebral hemorrhage were divided into the observation group (n=56) and the control group (n=40). Both groups recieved the routine treatment for cerebral hemorrhage and rehabilitation technique training. Besides, the control group was treated with intermediate frequency physiotherapy, and the observation group was treated with electroacupuncture and acupoint injection of Salvia miltiorrhiza and ligustrazine. After 1 months of treatment, the the upper limb movement function, daily living ability (ADL), shoulder joint pain, joint activity degree, and the degree of joint swelling were evaluated and compared. Results After treatment, the FMA (60.1 ± 6.4 vs. 41.8 ± 18.7, t=6.799), MBI (65.2 ± 3.5 vs. 50.6 ± 2.1, t=23.512) scores of the observation group were significantly higher than those of the control group. The VAS (2.7 ± 1.4 vs. 4.9 ± 1.3, t=7.817), edema volume (2.1 ± 2.1 cm3 vs. 2.1 ± 2.1 cm3, t=7.316) of the observation group were significantly lower than those of the control group ( P＜0.01). The anterior flexion (163.1 ± 6.7°vs. 56 ± 10.9°, t=59.516), extension (39.6 ± 5.8°vs. 23.2 ± 6.7°, t=12.799), abduction (168.1 ± 9.6°vs. 52.1 ± 8.9°, t=60.148), adduction (52.1 ± 3.6°vs. 29.8 ± 4.3°, t=27.580), external rotation (49.8 ± 7.6°vs. 23.2 ± 5.2°, t=19.151), internal rotation (107.0 ± 8.5°vs. 60.2 ± 6.1°, t=29.758) of the observation group were significantly higher than those of the control group (P＜0.01). The total effective rate of the observation group was 91.1% (52/56) and the control group was 70% (28/40), and the difference between the 2 groups was statistically significant (χ2=7.209, P＜0.01). Conclusions Acupuncture combined with acupoint injection and rehabilitation technology can relieve pain, eliminate edema and improve motor function and daily living ability of SHS patients after intracerebral hemorrhage.

Prevalence and influence factors of subthreshold body dysmorphic disorder in undergraduates / 中华行为医学与脑科学杂志

Objective To explore the prevalence of subthreshold body dysmorphic disorder in an undergraduates sample and investigate the mediating role of self-esteem on big five personality and body image disturbance.Methods A sample of 1 166 undergraduates coming from four different colleges were recruited to complete questionnaire survey.Results The prevalence of subthreshold body dysmorphic disorder in undergraduates was 6.2％.Body image disturbance(35.2± 18.4) was negatively correlated with self-esteem ((29.0±4.3),r=-0.41,P＜0.01),positively correlated with neuroticism ((32.9±8.1),r=0.52,P＜0.01) while negatively correlated with extraversion (39.6 ± 6.8),openness (39.8 ± 6.4),agreeableness (41.7±4.7) and conscientiousness ((40.1±6.4),r=-0.18,-0.14,-0.14,-0.25;all P＜0.01).The mediating role of self-esteem was 19.7％.Conclusion The prevalence of subthreshold body dysmorphic disorder in undergraduates is rather high.Big five personality can directly predict body image disturbance and indirectly predict body image disturbance through the mediating role of self-esteem.

ADC measurement in assessment of tumor grade and myometrial invasion of endometrial carcinoma / 实用放射学杂志

Objective To investigate the value of the apparent diffusion coefficient (ADC)measurement in assessment of tumor grade and myometrial invasion of endometrial carcinoma (EC).Methods 80 EC patients and 28 cervical cancer patients with normal endometrium were studied retrospectively.1.5T conventional MRI and DWI (b=0,1 000 s/mm2)were performed,and ADC values were calculated by two radiologists.Statistical analyses were performed by using SPSS 19.0 and Medcalc software.Results The mean ADC values (×10-3mm2/s)were 0.851±0.131,0.752±0.099,0.681±0.089 for G1,G2 and G3 EC,respectively.Significant statistical differences were achieved for the three groups (G1 vs G2:P=0.005;G2 vs G3:P=0.03;G1 vs G3:P< 0.000 1).For the prediction of G3,the area under the curve (AUC)of 0.851 and the cut-off value of ≤0.742×10-3mm2/s were identified,with the sensitivity, specificity and accuracy of 88.24%,76.19% and 85%,respectively.Conclusion There are significant statistical differences between histologic grades of EC.ADC measurement may have the potential to select G3 EC patients.

Study on improving accuracy of setup errors of supraclavicular field in radiotherapy for breast cancer by breast bracket and moisture-cured resin cushion / 中华放射医学与防护杂志

Objective To explore the effects of improvements on setup error ( SE ) and clinical target ( CTV ) margin of supraclavicular field ( SCF ) by using moisture-cured resin cushion and breast bracket for lower neck fixation in breast cancer patients who underwent post-mastectomy radiotherapy. Methods Totally 13 patients with breast cancer who underwent post-mastectomy radiotherapy were enrolled. All patients were immobilized by breast bracket and moisture-cured resin cushion. Firstly, each patient′s lower neck and head was fixed well by moisture-cured resin cushion, filling the gap between the neck and breast bracket. Secondly,each patient underwent the cone-beam CT ( CBCT) at the first, tenth and twentieth treatment after positioning. Then these CBCT images were registered to the planning CT to determine setup errors in translational and rotational directions, and SCF CTV margins by the systematic and random errors were evaluated. Results The setup errors in x (left-right), y (superior-inferior), z (anterior-posterior) translational directions were (2. 16 ± 1. 25), (1. 50 ± 1. 28), (1. 94 ± 1. 12) mm and (1. 76 ±1. 87)°, (1. 82 ±1. 12)°, (0. 99 ±0. 58)°, respectively in θ (pitch degree),Ф(roll degree),ψ( yaw degree) rotational directions. Non-parametric rank test ( Mann-Whitney U test) was performed with previous data, the differences of the setup error in y, z,θ directions were statistically significant ( Z =4. 152, 3. 415, 2. 053, P<0. 05). The margins from CTV were 4. 07, 4. 03 and 3. 73 mm in x, y and z directions, respectively. Compared with the previous study on SCF, CTV margin required 8, 8 and 6 mm in x, y and z axis directions, the volume of CTV to PTV were decreased by 32. 73% on average. Conclusions Compared with plastic circular pillow alone, moisture-cured resin cushion with breast bracket locating method could reduce setup errors in SCF target region. The margins from CTV to PTV weredecreased to 4. 07, 4. 03 and 3. 73 mm in x, y and z axis directions at least.

Relationship between changes of serum IL-34, RF and RANKL levels in patients with rheumatoid arthritis and osteoporosis / 国际检验医学杂志

Objective To investigate and analyze the changes of serum interleukin-34(IL-34),rheumatoid factor(RF) and nuclear factor κB receptor activator ligand(RANKL) in patients with rheumatoid arthritis Its relationship with osteoporosis.Methods A total of 40 patients suffering from rheumatoid arthritis in the hospital between January 2016 and January 2017 were included in the study group,and 40 healthy subjects who underwent the same period of physical examination at the same time were enrolled as controls.By enzyme-linked immunosorbent assay(ELISA) were detected in 2 groups of serum IL-34 and RANKL levels were detected by latex agglutination assay of serum RF levels in 2 groups,and routine testing in patients with bone mineral density,erythrocyte sedimentation rate(ESR),C reactive protein(CRP) and anti CCP antibody.And the modified DAS28 score of disease activity of rheumatoid arthritis evaluation.Results The levels of serum IL-34,RF and RANKL in the study group were significantly higher than those in the control group(P＜0.05).The incidence of osteoporosis in the study group was significantly higher than that in the control group(P＜0.05).The levels of IL-34,RF and RANKL in the osteoporosis patients were significantly higher than those in the normal group(P＜0.05).The Spearman correlation analysis showed that the serum IL-34 levels were positively correlated with ESR,CRP,anti-CCP and DAS28 (P＜ 0.05).There was a negative correlation between serum IL-34,RF and RANKL levels and bone mineral density(P＜0.05).Conclusion The levels of serum IL-34,RF and RANKL in patients with rheumatoid arthritis were significantly increased,and the above indexes were negatively correlated with bone mineral density.It suggested that IL-34 may be involved in osteoporosis.

The effect of acupuncture rehabilitation technique combined with traditional Chinese medicine Xingnaojing injection on functional recovery in patients with severe traumatic brain injury / 中国中西医结合急救杂志

Objective To investigate the effects of acupuncture rehabilitation techniques combined with Xingnaojing injection on functional recovery and the plasam level of glial fibrillary acidic protein (GFAP) in patients with severe traumatic brain injury (STBI).Methods Eighty-four patients with STBI admitted to Department of Neurosurgery in Jiuquan People's Hospital from October 2013 to December 2015 were enrolled,they were divided into observation group (44 cases) and control group (40 cases) by random number table,all patients received the routine basic treatment,such as decreasing intracranial pressure,anti-infection,neural nutrition therapy,etc.In addition,the observation group was treated with acupuncture rehabilitation training (each training 50 minutes,1-2 times a day,10 times as a course of treatment,a total of 5 courses) and Xingnaojing injection (in 0.9％ normal saline or 5％ glucose injection 250 mL intravenous infusion,one time a day,10 days as a course of treatment,a total of 3 courses).The evaluation score of Montreal cognitive assessment (MoCA),Modified Barthel index (MBI),Fugl-Meyer assessment (FMA) of motor function score and the plasma levels of GFAP and myelin basic protein (MBP) were measured before and after treatment in the two groups.Results After treatment,the MoCA,MBI and FMA scores were significantly higher in two groups than those before treatment (all P ＜ 0.05),the contents of MBP and GFAP were significantly lower than those before treatment,and the changes in observation group were more significant than those in control group [visual space and execution capability (score):4.99 ± 0.67 vs.3.42 ± 0.73,denomination capability (score):2.98 ± 0.77 vs.2.84 ± 0.47,delayed memory (score):5.76± 0.33 vs.3.87± 2.08,attention (score):6.17± 0.65 vs.4.75 ± 0.81,speech capability (score):3.51 ± 0.46 vs.2.04 ± 0.13,abstract thinking capability (score):2.94 ± 0.27 vs.1.58 ± 0.96,orientation force (score):6.02±0.65 vs.4.88±0.62,FMA score:68.71 ±34.17 vs.41.13 ± 14.82,MBI score:69.12± 10.45vs.37.63±6.11,MBP (μg/L):1.32±0.23 vs.5.31±0.79,GFAP (μg/L):0.19±0.08 vs.0.39±0.04,all P ＜0.05].Conclusions Acupuncture rehabilitation training combined with Xingnaojing injection may obviously improve the cognitive and motor functions in patients suffered from STBI,and clinically the combined treatment is worthwhile to be used extensively.

Expression of Galectin-3 and Bcl-2 in Epithelial Ovarian Cancer and Their Clinical Significance / 中山大学学报(医学科学版)

[Objective] Examine the expression of Galectin-3 (Gal-3),B cell lymphoma-2 protein (Bcl-2) in epithelial ovarian cancer tissues with regard to clinicopathological and survival variables,testing whether they can serve as prognostic markers and provide evidence for further research.[Methods] 98 EOC tissues and 10 normal ovarian tissues were collected,as well as their clinical documents.The expression of Gal-3 and Bcl-2 was tested via immunohistochemical staining analysis.Then the correlation between these two proteins and the clinicopathological and survival variables of these patients were evaluated.[Results] Of the 98 EOC,Gal-3 and Bcl-2 were all cytoplasmic staining.Gal-3 was observed in a majority of the EOC tumor cell proper (75/98,76.5％) but not in normal ovarian tissues.Bcl-2 was observed in a majority of the EOC tumor cell proper (50/98,51.0％) but not in normal ovarian tissue.Spearman bivariate correlation test show that there was no correlation between the expression Gal-3 and Bcl-2 (P =0.867).Gal-3 expression in EOC was associated with histology and platinum sensitivity (P =0.043,P =0.038),while Bcl-2 was associated with FIGO stage (P =0.029).Cox univariate analysis revealed that Gal-3,Bcl-2 expression,platinum sensitivity,stage were associated with overall survival (P =0.008,P =0.021,P ＜ 0.001,P ＜ 0.001).Further multivariate analysis showed that only Gal-3 expression,platinum sensitivity,stage affected the survival of these patients (P =0.014,P =0.021,P ＜ 0.001).[Conclusions]The expression of Gal-3 and Bcl-2 in EOC was significantly higher than that in normal ovarian tissue,supposed that they may involve in the development and progression of EOC.Gal-3 expression was associated with histology,platinum sensitivity and survival,it may be an independent predictive factor for EOC prognosis.There was no correlation between the expression Gal-3 and Bcl-2 in EOC,the functional mechanism between these two protein need further research.

Association rules between behavior problems and parenting style in asthmatic children / 中华行为医学与脑科学杂志

Objective To explore the association rules of behavior problems and parenting styles in asthmatic children. Methods The database was established with the data of behavior problems and paren-ting styles of 202 allergic asthma children.Based on the algorithm of Apriori,the relativity between these be-havior problems and parenting styles was mined.314 healthy children of the same age were selected as the control group. Results (1)The differences in behavior problems between asthmatic group and control group were significant,which includes attention(7.63±3.44 vs 4.03±3.01),sociality(4.10±2.14 vs 2.86± 1.67),aggression(11.74±5.10 vs 6.63±4.26)and flinch(3.03±1.58 vs 2.06±1.38)(all P<0.01),while the difference in offence between two groups was not significant(P>0.05).The differences in parenting styles be-tween asthmatic group and control group were significant,including spoiledness(15.26 ± 4.16 vs 10.88 ± 3.29),indulgence(22.47±4.68 vs 16.59±4.12),discrepancy(13.54±3.50 vs 11.92±3.35)and democracy (35.08±5.25 vs 39.76±4.80)(all P<0.01),while the difference in autocracy was not significant between two groups(P>0.05).(2)There were multi-positive associations among these behavior problems of asthmatic children as followed.There were positive associations between the cognitive impairment(such as attention) and social impairment(including flinch,aggression and sociality),(each support>10%,confidence>0.60,lift>1.20,the value of correlation coefficient between(1,+∞)).(3)There were multiple associations between behavior problems and parenting styles of asthmatic children as followed.There were negative associations be-tween democracy and behavior problems(the value of correlation coefficient between[0,1)),and there were positive associations among indulgence、spoiledness,discrepancy and these behavior problems(the value of correlation coefficient between(1,+∞)).Conclusion There are positive associations among these behavior problems of asthmatic children,and there are multi-associations between behavior problems and parenting styles.

Study on improving accuracy of setup errors of supraclavicular field in radiotherapy for breast cancer by breast bracket and moisture-cured resin cushion / 中华放射医学与防护杂志

Objective To explore the effects of improvements on setup error ( SE ) and clinical target ( CTV ) margin of supraclavicular field ( SCF ) by using moisture-cured resin cushion and breast bracket for lower neck fixation in breast cancer patients who underwent post-mastectomy radiotherapy. Methods Totally 13 patients with breast cancer who underwent post-mastectomy radiotherapy were enrolled. All patients were immobilized by breast bracket and moisture-cured resin cushion. Firstly, each patient′s lower neck and head was fixed well by moisture-cured resin cushion, filling the gap between the neck and breast bracket. Secondly,each patient underwent the cone-beam CT ( CBCT) at the first, tenth and twentieth treatment after positioning. Then these CBCT images were registered to the planning CT to determine setup errors in translational and rotational directions, and SCF CTV margins by the systematic and random errors were evaluated. Results The setup errors in x (left-right), y (superior-inferior), z (anterior-posterior) translational directions were (2. 16 ± 1. 25), (1. 50 ± 1. 28), (1. 94 ± 1. 12) mm and (1. 76 ±1. 87)°, (1. 82 ±1. 12)°, (0. 99 ±0. 58)°, respectively in θ (pitch degree),Ф(roll degree),ψ( yaw degree) rotational directions. Non-parametric rank test ( Mann-Whitney U test) was performed with previous data, the differences of the setup error in y, z,θ directions were statistically significant ( Z =4. 152, 3. 415, 2. 053, P<0. 05). The margins from CTV were 4. 07, 4. 03 and 3. 73 mm in x, y and z directions, respectively. Compared with the previous study on SCF, CTV margin required 8, 8 and 6 mm in x, y and z axis directions, the volume of CTV to PTV were decreased by 32. 73% on average. Conclusions Compared with plastic circular pillow alone, moisture-cured resin cushion with breast bracket locating method could reduce setup errors in SCF target region. The margins from CTV to PTV weredecreased to 4. 07, 4. 03 and 3. 73 mm in x, y and z axis directions at least.

Relationship between changes of serum IL-34, RF and RANKL levels in patients with rheumatoid arthritis and osteoporosis / 国际检验医学杂志

Objective To investigate and analyze the changes of serum interleukin-34(IL-34),rheumatoid factor(RF) and nuclear factor κB receptor activator ligand(RANKL) in patients with rheumatoid arthritis Its relationship with osteoporosis.Methods A total of 40 patients suffering from rheumatoid arthritis in the hospital between January 2016 and January 2017 were included in the study group,and 40 healthy subjects who underwent the same period of physical examination at the same time were enrolled as controls.By enzyme-linked immunosorbent assay(ELISA) were detected in 2 groups of serum IL-34 and RANKL levels were detected by latex agglutination assay of serum RF levels in 2 groups,and routine testing in patients with bone mineral density,erythrocyte sedimentation rate(ESR),C reactive protein(CRP) and anti CCP antibody.And the modified DAS28 score of disease activity of rheumatoid arthritis evaluation.Results The levels of serum IL-34,RF and RANKL in the study group were significantly higher than those in the control group(P＜0.05).The incidence of osteoporosis in the study group was significantly higher than that in the control group(P＜0.05).The levels of IL-34,RF and RANKL in the osteoporosis patients were significantly higher than those in the normal group(P＜0.05).The Spearman correlation analysis showed that the serum IL-34 levels were positively correlated with ESR,CRP,anti-CCP and DAS28 (P＜ 0.05).There was a negative correlation between serum IL-34,RF and RANKL levels and bone mineral density(P＜0.05).Conclusion The levels of serum IL-34,RF and RANKL in patients with rheumatoid arthritis were significantly increased,and the above indexes were negatively correlated with bone mineral density.It suggested that IL-34 may be involved in osteoporosis.

Genetic Characteristics of Coxsackievirus Group A Type 4 Isolated from Patients with Acute Flaccid Paralysis in Shaanxi, China / 病毒学报

We analyzed the genetic characteristics of coxsackievirus A4 (CV-A4) based on the entire VP1 coding region. Samples were isolated from patients with acute flaccid paralysis (AFP) in Shaanxi, China from 2006 to 2010. We wished to ascertain the predominant genotype and the relationship between CV-A4 infection and AFP. Sixty-eight non-polio enteroviruses were inoculated onto RD cells (to increase the virus titer) and molecular typing was undertaken. The entire VP1 coding region was amplified. Percentage of CV-A4 was 10.3% (7/68). Analyses of genetic identify and creation of phylogenetic trees revealed that CV-A4 could be classified into A, B and C genotypes. Seven CV-A4 strains from Shaanxi and other CV-A4 strains from China formed an independent evolution lineage located in group 4 and belonged to the C2 sub-genotype. These data suggested that CV-A4 strains of sub-genotype C2 were the predominant genotypes in China. These strains co-evolved and co-circulated with those from other provinces in China, so continued monitoring of CV-A4 (by clinical and genetic surveillance) should be enhanced.

A culture method for cortical neurons derived from neonatal Sprague-Dawley rats / 中国组织工程研究

BACKGROUND:Primary culture in vitro of neurons plays an important role in the development, regeneration, signal transduction mechanisms, neuropharmacology and gene expressions of the nervous system. OBJECTIVE:To establish a simple method for primary culture of high-purity cortical neurons in neonatal Sprague-Dawley rats. METHODS:Cortical tissues were acquired from neonatal Sprague-Dawley rats born 1 day. In traditional experimental group, the whole cortex was removed;in improved experimental group, the cortical tissues, 2-3 mm thick on the brain surface were removed. Single cel suspensions were prepared after papain digestion and centrifugation and were then seeded onto 24-wel culture plates containing neuron solutions for primary culture (1×105 per wel ). Cel s were identified by neuronal specific markers MAP-2 and Tuj1 after 3-day culture. The number of neurons and neurite length were observed under inverted phase contrast microscope and recorded at 6, 24, 48 and 72 hours, 5 and 7 days of culture, resprctively. RESULTS AND CONCLUSION:The cultured cel s expressing MAP-2 and Tuj1 were neurons that could be used in the fol owing experiments. The purity of neurons in the improved experimental group was 92%at 3 days, while only 51%in the traditional experimental group. Cel s in both two groups had attached to the wal presenting with smal processes at 6 hours, and a simple neural network formed at the 3rd day until dense neural networks could be found at the 5th day. To conclude, our culture method herein is simple and convenient, and can be used to produce neurons with high purity, which wil be helpful for the experimental studies on cortical neurons from Sprague-Dawley rats.

Therapeutic effect of acupoint injection and rehabilitation training three-level program on upper limb function and daily life activities of patients with shoulder-hand syndrome after cerebral infarction / 中国中西医结合急救杂志

ObjectiveTo investigate the effect of acup point injection and rehabilitation techniques on recovery of upper limb function and activities of daily life (ADL) in patients with shoulder-hand syndrome (SHS) after cerebral infarction.Methods Ninety-six patients with SHS after cerebral infarction admitted to Jiuquan City Traditional Chinese Medicine Hospital and Jiuquan City People's Hospital from January 2014 to February 2016 were enrolled, and they were randomly assigned to observation group (56 cases) and control group (40 cases). The patients in the two groups were given the same routine comprehensive cerebral infarction treatments and rehabilitation technological training. In the control group, additionally intermediate frequency physiotherapy was used, while in the observation group, acupuncture and acupoint injection of salvia miltiorrhiza and ligustrazine were added. The patients in two groups were treated consecutively for one month, afterwards, the upper limb motor function, ADL, shoulder joint pain, degree of swelling and range of motion were assessed, and the clinical effects were observed.Results After treatment, the modified Fugl-Meyer motor function score (FMA), modified barthel index (MBI) and the ranges of voluntary activities of shoulder abduction, adduction, flexion, extension, internal rotation and external rotation in patients of two groups were significantly increased than those before treatment; the pain visual analog scale (VAS) and the edema volume difference in observation group were lower than those in the control group, and after treatment, the changes of above indexes were more significant in the observation group than those in the control group [FMA: 70.10±6.38 vs. 41.76±18.69, VAS: 2.00±1.37 vs. 5.00±1.25, MBI: 75.17±3.51 vs. 51.56±2.12, edema volume difference (cm3): 2.13±2.05 vs. 5.75±1.17, flexion: (153.1±6.7)° vs. (56.0±10.9)°, extension: (39.6±5.8)° vs. (17.2±6.7)°, abduction:(168.1±9.6)° vs. (52.1±8.9)°, adduction: (52.1±3.6)° vs. (21.8±4.3)°, external rotation: (49.8±7.6)° vs. (23.2±5.2)°, internal rotation: (107.0±8.5)° vs. (51.2±6.1)°], the total effect in observation group was significantly higher than that in the control group [91.1% (52/56) vs. 70.0% (28/40),P < 0.05].Conclusions Acupuncture and acupoint injection combined with three-level therapeutic regimen of rehabilitation technological training for treatment of shoulder-hand syndrome after cerebral infarction can reduce the patient's pain and edema, and improve upper limb motor function and activities of daily living.

Clinical application of 18F-FDG PET/CT in Takayasu arteritis / 中华核医学与分子影像杂志

Objective To investigate the characteristics of 18F-FDG PET/CT imaging in Takayasu arteritis (TA) and its clinical value.Methods Five male patients with TA in active phase (age range:65-82 years;mean age:(72.8±6.6) years) from November 2011 to August 2014 were retrospectively analyzed.All patients underwent 18F-FDG PET/CT imaging,and one of them who was in stable phase after one year's treatment underwent follow-up PET/CT imaging.The characteristics of the abnormal 18F-FDG uptake and SUVmax of lesions were analyzed.Another 5 age-and gender-matched patients with slightly elevated tumor markers and normal results of 18F-FDG PET/CT imaging in the same period were selected as the control group.Arteries were divided into 18 segments,including the ascending aorta,the aortic arch,the descending aorta,the abdominal aorta,the brachiocephalic trunk,the left/right common carotid,the left/right subclavian,the left/right brachial,the superior mesenteric,the left/right common iliac,the left/right renal,and the left/right femoral,and their SUVmax were measured respectively.Paired t test was used to analyze the difference of SUVmax between TA group and the control group.Results (1) 18 F-FDG PET/CT imaging displayed diffused increase of radioactivity in the wall of aorta and its major branches in TA group,and CT showed multiple irregular thickening,punctate and banding calcification in arterial walls of those patients.The ascending aorta,the aortic arch,the descending aorta,the abdominal aorta,the brachiocephalic trunk,the left/right subclavian,the left/right common carotid,and the left/right common iliac artery were all involved in 5 patients;the left/right brachial and the left/right femoral artery were involved in 4 patients and the superior mesenteric artery was involved in 2 cases.The SUVmax range was 1.4-7.6,the highest SUVmax was in the left subclavian artery (n=2),the right subclavian artery (n=1) and the abdominal aorta artery (n=2).(2)The SUVmax of TA group and the control group were 3.96±1.35 and 2.13±0.53,respectively(t=10.40,P＜0.001).(3) As to the TA patient in stable phase after treatment,the FDG uptake of the wall of aorta and its major branches decreased obviously compared with that before treatment.The SUVmax of left subclavian artery decreased from 6.8 to 3.2.Conclusions 18F-FDG PET/CT is helpful in diagnosis of TA.It could accurately display the range of involved arteries,reflect the activity of the lesion and evaluate the therapeutic response.

Genetic Characteristics of Type 2 Vaccine-derived Poliovirus in Shanxi Province (China) in 2014 / 病毒学报

The World Health Organization redefined the type 2 vaccine-derived poliovirus (VDPV) in 2010. To study the genetic characteristics and evolution of type 2 VDPV under this new definition, we conducted genome sequencing and analyses of type 2 VDPVs isolated from one patient with acute flaccid paralysis in Shanxi province (China) in 2014. Nucleotide sequencing revealed that the full-length of type 2 VDPV is 7439 bases encoding 2207 amino acids with no insertion or deletion of nucleotides compared with Sabin2. One nucleotide substitution identified as a key determinant of the attenuated phenotype of the Sabin 2 strain (A-G reversion at nucleotide nt 481 in the 5-end of the untranslated region) had reverted in the Shanxi type 2 VDPV. The other known key determinant of the attenuated phenotype of the Sabin 2 strain (U-->C reversion at nt2909 in the VP1 coding region that caused a Ile143Thr substitution in VP1) had not reverted in the Shanxi VDPV. The Shanxi type 2 VDPV was S2/S1 recombinant, the crossover site of which mapped to the 3-end of the 3D region (between nt 6247 and nt 6281). A phylogentic tree based on the VP1 coding region showed that evolution of the Shanxi type 2 VDPV was independent of other type 2 VDPVs detected worldwide. We estimated that the strain circulated for approximately = 11 months in the population according to the known evolution rate. The present study confirmed that the Chinese Polio Laboratory Network could discover the VDPV promptly and that it played an important part in maintenance of a polio-free China.