Objective: To observe vertebral three-dimensional motion characteristics of adjacent segments in patients with symptomatic L 4 isthmic spondylolisthesis (IS). Methods: Fourteen symptomatic L 4 IS patients who underwent surgery treatment (trial group) and 15 asymptomatic volunteers without back pain and other lesions of spine (control group) were recruited. There was no significant difference in gender, age, body mass index, and bone mineral density between the two groups ( P>0.05). The three-dimensional reconstruction model of lumbar spine was acquired from the thin slice CT of the lumbar spine of the subjects by combining dual-X-ray fluoroscopy imaging system with spiral CT examination. The model was matched to the double oblique X-ray fluoroscopy images captured by dual-X-ray fluoroscopy imaging system at different active positions of the lumbar spine to reproduce the three-dimensional instantaneous of lumbar spondylolisthesis at different state of motion. The motion and relative displacement of adjacent segments (L 3, 4 and L 5, S 1) of spondylolisthesis were measured quantitatively by establishing a three-dimensional coordinate system at the geometric center of the vertebral body. The results were compared with those of the control group. Results: When L 3, 4 in the control group were flexed flexion-extension, left-right twisting, and left-right bending, and when L 5, S 1 in the control group were flexed left-right twisting and left-right bending, the activity along the main axis of motion (main axis of motion) tended to increase compared with that along the corresponding coupled axis of motion (secondary axis of motion); however, this trend disappeared in the trial group, and the main and secondary movements were disordered. Because of the coronal orientation of the facet joints of L 5, S 1, the degree of motion along the main axis of motion decreased during flexion and extension, but this trend disappeared in the trial group. Compared with the control group, L 3, 4 in the trial group exhibited displacement instability in flexion-extension, left-right twisting, and left-right bending ( P<0.05); there was no significant difference in the relative displacement of L 5, S 1 intervertebral bodies along x, y, and z axes between the trial group and the control group in flexion-extension, left-right twisting, and left-right bending curvature ( P>0.05). Conclusion: Patients with symptomatic L 4 IS have disorders of primary and secondary movement patterns in adjacent segments, while IS showed significantly displacement instability in L 3, 4 and significantly decreased motion in L 5, S 1.

ObjectiveTo study the correlation of personality dysfunction with resilience in secondary vocational students.MethodsBy adopting the questionnaire of Personality Dysfunction Inventory for Middle School Students (MPDI) and Healthy Kids Resilience Assessment scale (HKRA) to assess 358 secondary vocational students.ResultsThe secondary vocational student's scored lower on relationship dysfunction (4.15 ±2.67) than ordinary high school students'( 5.18 ± 3.37 ),and higher on behavioral deviation (6.07 ± 3.20) than ordinary high school students (5.18 ± 3.37 ).There existed great capable difference of total and every fact of personality dysfunction according to grade (P ＜ 0.05,P ＜ 0.01 ),and the quo of personality dysfunction on second year in high vocational school students was better than high and senior high vocational school students.Both parents of secondary vocational student's scored lower on relationship dysfunction( 3.96 ± 2.36),emotional deviation (3.96 ± 2.36 )and personality dysfunction( 15.50 ± 6.27 ) than Single-parent family of secondary vocational students ( 5.73 ±4.12,6.51 ± 3.72,19.78 ± 10.44).There existed great capable difference of total and every fact of personality dysfunction according to relationship with parents (P ＜ 0.05,P ＜ 0.01 ),and the more harmonious in parental relationship,the better in personality.There also existed great capable difference of total and every fact of personality dysfunction according to educational background of parents (P ＜ 0.05,P ＜ 0.01 ),and the higher degree,the better in personality.Personality dysfunction of Students of secondary vocational was negatives correlated with their resilience (Pearson correlation coefficient was between -0.064 and -0.345 for each pair).The linear regression showed thatthepeerrelationshippredictedpersonalitydysfunctionofsecondaryvocationalstudents.ConclusionThe personality dysfunction of secondary vocational students is affected by their parental relationships,educational background of parents,grade and resilience.

Objective To study the characteristics of peripheral blood lymphocyte subsets in patients with lung cancer,gastric cancer and breast cancer.Methods Five hundred and eight patients with cancer from the First Affiliated Hospital of Tianjin University of Traditional Chinese Medicine (256 cases with lung cancer,152 cases with gastric cancer,100 cases with breast cancer),and 50 healthy volunteers were collected.Two ml peripheral blood were obtained from these cases.The distribution of lymphocyte subsets in peripheral blood was measured by flow cytometry in these cases.The data were analyzed using SPSS 16.0 software.Results The number of lymphocytes of cancer patients was decreased,the healthy volunteers was 5125,breast cancer patient was 3642,gastric cancer patient was 3178,lung cancer patient was 2895.The case of outliers of lymphocyte subsets classified based on the three kinds of cancer was 218 (85.2％,lung cancer),133 (87.5％,gastric cancer),88 (88.0％,breast cancer).The case of outliers of T-lymphocyte subsets classified based on the three kinds of cancer was 83 (32.4％,lung cancer),32 (32.0％,breast cancer),44 (28.9％,gastric cancer).The case of outliers of CD4 +/CD8 + classified based on the three kinds of cancer was 185 (72.3％,lung cancer),108 (71.1％,gastric cancer),84 (84.0％,breast cancer).The case of outliers of natural killer-lymphocyte subsets classified based on the three kinds of cancer was 32 (12.5％,lung cancer),22 (14.5％,gastric cancer),16 (16.0％,breast cancer).The case of outliers of B-lymphocyte subsets classified based on the three kinds of cancer was 38 (14.8％,lung cancer),52 (34.2％,gastric cancer),12 (12.0％,breast cancer).Compared to healthy subjects,the CD19+％ of patients with lung cancer was decreased (12.8 ± 5.0 vs.11.5 ± 5.7,t =3.006,P =0.003);the CD4 + ％ of patients with gastric cancer was decreased (39.2 ±7.7 vs.35.3 ± 7.6,t =2.315,P =0.023);the CD19 + ％ of patients with gastric cancer was decreased (12.8 ± 5.0 vs.8.9 ± 4.2,t =3.302,P =0.010);the CD8 + ％ of patients with breast cancer was increased (24.0 ± 8.1 vs.29.1 ± 13.0,t =2.019,P =0.047).Conclusion The number of lymphocytes in cancer patients is decreased,the abnormal rates of lymphocyte subsets in the three kinds of cancer patients are higher than those in healthy volunteers,the lymphocyte subsets of different kinds of cancers perform different characteristics.

Objective:Discussion MKK4 protein expression in nasopharyngeal carcinoma and -1044 A/T polymorphism correlation.Methods:90 patients with nasopharyngeal carcinoma , MKK4 protein expression was determined by immunohistochemical staining,polymerase chain reaction-restriction fragment length polymorphism ( PCR-RFLP ) to detect the gene -1044A/T sites monocytes nucleotide polymorphism.Results:MKK4 protein expression in nasopharyngeal carcinoma (-) was 24.4%(22/90),(+) was 15.6%(14/90),(++) was 34.4%(31/90),(+++) was 25.6% (23/90).Low expression (-/+) patients with a total of 36 cases,-1044AA genotype accounted for 22 cases (61.11%),AT genotype accounted for 12 cases (33.33%),TT genotype accounted for two cases (5.56%),AT+TT gene type accounted for 14 cases (38.89%).The patients with high MKK4 expression of 54 cases,of which accounted for 38 cases of AA genotype (70.37%),AT genotype accounted with 15 cases (27.78%),TT genotype accounted for one case (1.85%),AT +TT genotype accounted for 16 cases (29.63%).Low expression and high expression of T gene mutation occurs no significant ( Z=0.323 , P=0.747 ) .Conclusion: MKK4 protein expression correlated with -1044 A/T gene promoter polymorphisms was no significant correlation .

Objective:To investigate the expression of MKK 4 protein in the nasopharyngeal carcinoma and its clinical significance.Methods:Immunohistochemical methods were employed to analyze MKK 4 positive expression intensity and positive cells in freshly collected nasopharyngeal carcinoma of both 90nasopharyngeal carcinoma cases and 20 chronic nasopharyngitis control.The clinical pathological characteristic were analyzed.Results:The data obtained by MKK4 immunohistochemistry showed that the MKK 4 positive rate was higher in control group than in the NPC group (95.5%vs 75.6%,P<0.05).The expression of MKK4 was related to tumor differentiation and lymph node metastasis ( P<0.05 ) , but not to gender , age, tumor volum and TNM stage ( P>0.05 ) . Conclusion:Positive rate of MKK4 protein in nasopharyngeal carcinoma tissues is lower than in chronic nasopharyngitis.MKK4 protein expressions in nasopharyngeal carcinoma tissues negatively correlated with lymph node metastasis ,clincal stage ,invasive depth ,and TTP (Time to progression),but not with age,gender,location and tumor volume.

OBJECTIVE: To investigate the association between-1304T/G polymorphism in the promoter of MKK4 gene and the susceptibility in sporadic nasopharyngeal carcinoma. METHOD: MKK4-1304T/G genotypes were determined by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) in 90 NPC cases and 30 healthy controls. RESULT: The number of nasopharyngeal carcinoma patients carrying with TG+GG genotype was much higher than those of controls (82.2% vs 66.7%, χ² =10.076, P < 0.05). Analysis showed that compared with the-1304TT genotype, -1304TG heterozygous reduced risk of nasopharyngeal carcinoma 0.56 fold (95% CI = 0.164-1.178, P < 0.01) and-1304GG lower 0.58 fold (95% CI = 0.126-1.381, P < 0.01), TG+ GG genotype variation risk of nasopharyngeal carcinoma decreased 0.72 fold (95% CI = 0.105-0.753, P < 0.01). CONCLUSION MKK4 gene-1304TG genotype can reduce risk of nasopharyngeal carcinoma, and it may be an independent protection factor in sporadic nasopharyngeal carcinoma.
Carcinoma ; Genetic Predisposition to Disease ; Genotype ; Heterozygote ; Humans ; MAP Kinase Kinase 4 ; genetics ; Nasopharyngeal Carcinoma ; Nasopharyngeal Neoplasms ; genetics ; Polymerase Chain Reaction ; Polymorphism, Restriction Fragment Length ; Promoter Regions, Genetic

Objective To explore the relating factors for cognitive dysfunction in patients with acute exacerbation of chronic obstructive pulmonary disease (AECOPD).Methods Totally 150 patients with acute exacerbation of COPD (AECOPD) and 150 gender and age-matched healthy subjects (controls) received the cognitive and depression function assessment.150 AECOPD cases were classified into two groups:COPD patients with or without cognitive dysfunction.Fasting blood uric acid (UA) was measured and compared between the two groups.Relating factors for cognition dysfunction were analyzed.Results The score of Montreal Cognitive Assessment (MoCA) was reduced in AECOPD patients as compared with controls [(19.01±3.58) vs.(26.58±1.42)scores,t=-3.48,P=0.032].The score of Hamilton depression (HAMD) scale was higher in AECOPD patients than in controls [(18.05 ± 4.50) vs.(9.98 ± 3.51) scores,t =4.63,P =0.028].The prevalence of cognitive impairment in the patients with AECOPD was 82 cases (54.7％).The serum UA level was lower in the AECOPD patients with cognitive impairment than in patients without cognitive impairment [(235±42) μmol/L (n=82) vs.(332±45) μmol/L (n=68),t=-6.65,P=0.003].In AECOPD patients,the cognitive function was correlated with education,length of hospital stay,serum UA level,COPD stages,disease duration and the depression level,but was not correlated with smoking and body mass index.Conclusions The cognitive impairment is highly prevalent in patients with AECOPD,which is associated with lower serum UA level,longer hospital stay and disease severity.

Objective To observe and compare in vivo segmental lumbar motion between symptomatic L4 isthmic spondy?lolisthesis (IS) patients and L4 degenerative spondylolisthesis (DS) patients during functional weight?bearing activities. Methods Fifteen symptomatic L4 IS patients and fifteen symptomatic L4 DS patients were recruited. Fifteen asymptomatic volunteers were en?rolled as the control group. The L4,5 vertebral segment motion of each subject was reconstructed using three?dimensional computed tomography and a solid modeling software. In vivo, lumbar vertebral motion during functional postures (flexion?extension, left?right twisting and left?right bending) was observed using a dual fluoroscopic imaging technique. The spinal function unit was divided in?to anterior and posterior segments by the isthmic cleft. Local coordinate systems were established at the vertebral body, to obtain the 6 degree?of?freedom (DOF) intervertebral range of motion (ROM) at L4,5 and the ROM between the anterior and the posterior segments of L4 IS. Results The motion of IS at L4,5 was found to be increased. The migrations along both sagittal and vertical axis were significantly larger than control group (P<0.05). During left?right twisting, the migration along sagittal axis was significantly larger than control group (P<0.05);the rotation along vertical axis was significantly larger than DS and control group (P<0.05). During left?right bending, the migration along frontal axis was significantly larger than DS and control group ( P<0.05). The inter?vertebral ROM at L4,5 showed no significant difference between DS and control group. The migration between anterior and posteri?or segments of IS L4 was larger in standing than supine (P<0.05). The relative migration along sagittal axis between anterior and posterior segments of IS L4 was significantly larger in flexion than standing (P<0.05). Conclusion A spondylolytic defect does lead to detectable instability or hypermobility in the lumbar spine compared with degenerative spondylolisthesis and normal group. From supine to standing posture, migration at isthmic cleft along sagittal and coronal axis are identified in IS spondylolithesis.

A 35-year-old female patient with a history of significant epidemiological exposure firstly visited eye doctor due to acute tarsadenitis in the right eye.Subsequently, she developed subconjunctival hemorrhage, fever and cough and received topical administration of antibiotics and systemic treatment of antiviral drug.Shortly thereafter, both his mother and father, who denied COVID-19 associated epidemiological history, appeared fever, fatigue and other symptoms and diagnosed as COVID-19.This female patient was diagnosed as COVID-19 by CT image of lung and COVID-19 RNA detection 17 days and 24 days after firstly visited eye doctor, respectively, and received specialized isolation treatment.The symptoms of COVID-19 are very varied, eye doctors should keep alert and pay attention to personal protection.

The relationships of therapeutic regime, glycemic control and quality of life with depression were observed in 193 type 2 diabetic patients. The results showed that 46.6% of the diabetic patients manifested depression in various degrees; the depression status was correlated with age or duration of diabetes; the patients under insulin treatment showed more marked depression than the other patients (P