Objective To investigate the changes of soft and hard tissues after extraction space closure with micro-screw implant as orthodontic anchorage. Methods Twenty cases were selected randomly with the first premolars extraction. Micro-screw implant was used as orthodontic anchorage. Sliding technique was used to close the extraction space. The lateral cephalograms before and after the treatment were evaluated.Results The upper incisors moved 7. 15 mm palatelly, 1. 63 mm intruded. The upper first molar moved 0. 80 mm distally, 1. 80 mm intruded. The lower incisors moved 4. 65 mm distally, 0.48 mm extruded. The lower first molar moved 0. 18 mm mesially, 1.18 mm extruded. A point, B point, upper lip, lower lip showed distal movement. Conclusions Micro-screw implant can provide acceptable and reliable anchorage in the process of extraction space closure, and improve the profile. Besides, it produces skeletal change on the maxilla.

Objective To explore the ultrasonographic, clinical and histopathological characteristics features of primary uterus lymphoma. Methods The clinical, sonographic and histopathological characteristics of nine patients who were pathologically comfirmed as primary uterus lymphoma were analyzed. Results Among the nine cases of primary uterus lymphoma, three lesions were found in the uterine bodys and 6 were found in the cervixes. Two patients with uterine body lymphoma had painless pelvic masses and six patients with cervix lymphoma had contact bleeding, including irregular vaginal bleeding in four patients. In sonograms, six lesions showed remarkable hypoechogenicity with homogeneous internal echogenicity;the margins of most lesions were circumcribed;all lesions had posterior enhancement. In color Doppler lfow imaging, abundant vascularities were detected in eight lesions. In the cases of uterine body lymphoma, all of the uterine bodys showed diffuse symmetrical enlargement without disruption of the endometria, while in ifve cases of cervix lymphoma, the tumors showed the shape of lobule. The pathological examination showed that all tumors were diffuse B-cell type non-Hodgkin lymphoma. Conclusions Primary uterus lymphoma has some clinical and ultrasonic features, including contact bleeding or irrgular vaginal bleeding, diffuse symmetrical enlargement of uterine body, complete endometria, remarkable hypoechogenicity, homogeneous echogenicity and posterior enhancement. Final diagnosis depends on the histopathology.

0.05),but the expression of CD19+ in the 3rd month and the 6th month were lower than that of healthy control group(Pa

Female ; Hand-Arm Vibration Syndrome ; diagnosis ; Humans ; Hypothermia ; diagnosis ; Male ; Reference Standards ; Skin Temperature ; physiology ; Young Adult

ObjectiveTo investigate the effect of electroacupuncture on the structure basis of nervous plasticity and the recovery mechanism after acute cerebral infarction.MethodsA rat model of focal cerebral ischemia was made by filament occlusion of the middle cerebral artery. The effect of electroacupuncture in Qiansanli and Housanli to a rat's change in infarction tissue, necrosis of neuron and vessel, and the number of synapse.ResultsElectro acupuncture could improve histopathologic indices, increase the number of synapse, and promote the recover of synapse's structure.ConclusionElectro acupuncture can produce a marked protecting effect on the brain in Wistar rats focal cerebral ischemia, regulate the plasticity of cerebral neuron.

The development trend of medical education is comprehensive, which is character-ized by breaking the boundaries among different disciplines, constructing a main line centering on or-gan and system, and implementing student-centered problem-based learning. This paper analyzed the main problems of basic medical education in Wuhan University of Science and Technology, such as insufficient teaching reform to promoting students' autonomous learning and failed to create excellent teaching and research group et al. Also, the paper proposed comprehensive reform measures such as integrating teaching units , establishing Teacher Education Development Center, implementingCourse director andTeam leader system, promoting teaching model ofstudent centered and in-tegrating curriculums of basic medicine to establish course model centering on the organ and system et al, with some success.

Objective To study clinical features of liver damage in primary Sj(o)gren syndrome (pSS) and its related factors.Methods One hundred and forty-nine patients of confirmed pSS hospitalized at Peking University People's Hospital were analyzed retrospectively.Results Seventeen of 149 patients of pSS (11.4%) showed liver damage,10 diagnosed as autoimmune hepatitis and seven as primary biliary liver cirrhosis.Increased serum levels of IgG,IgM and γ-globulin accounted for 88.2% and 50.8%,35.3% and 5.3%,and 94.1% and 47.7% of those complicated with and without liver damage,respectively,with statistically significant difference (P ＜ 0.05).Positive serum anti-mitochondria antibody subtype M2 (AMA-M2) was 35.3% in pSS patients with liver damage,significantly higher than that in those without liver damage (1.5%) (P ＜ 0.05).Independent risk factors significantly associated with liver damage included age (OR = 1.013,95% CI 0.971-1.058),course of illness (OR = 1.089,95% CI 1.032-1.150),serum level of γ-globulin (OR = 4.021,95% CI 1.246-12.982),positive AMA-M2 (OR = 11.82,95% CI 0.005-0.157),and positive anti-SSA (OR = 101.333,95% CI 12.653-811.560).Conclusions Liver damage occurred rather high in pSS patients and increased serum levels of IgG,IgM,γ-globulin and anti-SSA can be used to predict their complication with liver damage.Age,course of illness,serum level of γ-globulin,positive AMA-M2 and positive anti-SSA are all significantly associated with liver damage in pSS patients.

0.05). Conclusions There was markedly immunoresponsiveness unbalance in acute phase of IM.The large number of mononuclear cells consisted mainly of activated CD8 + T cells.The decrease of CD4 +CD 25 + regulator T cells might be involved in pathogenesis of IM,which provided one of the new ways to treat EBV-associated diseases.

Objective To observe the ultrasonographic features of primary female genital system lymphoma and its histopathological characteristics.Methods Sonographic appearances and histopathological characteristics of 14 patients who were pathologically comfirmed as primary female genital system lymphoma were reviewed.Results Fourteen patients underwent ultrasonography and 15 lesions were found,6 cases of which were found in the ovary and cervix separately,3 cases in the uterine body.Among the lesions detected,10 of which respectively represents extremely low echo and homogeneous internal echo,all lymphomas had posterior enhancement.The margins were most frequently circumcribed (13/15),5numbers primary lymphomas of the ovary were mostly elliptical in shape,while 5 numbers of cervix tumors showed the shape of lobular,all of the tumors in the uterine body showed diffuse symmetrical enlargement without disruption of the endometria.Color Doppler imaging showed hypervascularity in most tumors(13/15).The pathological examination showed that all tumors were non-Hodgkin lymphoma diffuse B-cell type.Conclusions Primary female genital system lymphoma has some ultrasonic features,including extremely low echo,homogeneous echo and posterior enhancement.Final diagnosis depends on the histopathology.

Objective To determine health related quality of life (QOL) of patients with systemic lupus erythematosus (SLE) and to identify the factors affecting QOL. Methods One hundred and fifty-one consecutive patients with SLE were separated into different groups according to the type or stage of disease. Health status were measured by 1 health transition (HT) and 8 composite scales of the medical outcomes study short form-36 (SF-36). The mean scores for each subscale of the SF-36 for patients with SLE in China were compared to those of a health population in China and of foreign SLE patients.The effect of patients′age,sex,education level,disease duration,disease activity (assessed by SLEDAI score),and organ damage(assessed by SLICC/ACR DI) and treatment were analyzed. ANOVA, rank sum test and correlation analysis were applied for statistical analysis. Results Patients with SLE had significantly lower HT and mean scores in each subscale of the SF-36 compared to those of a health population in China,while the scores in such subscales as physical functioning (PF), bodily pain (BP), vitality (VT), role-emotional (RE) and mental health (MH) were higher than those of foreign SLE patients. The mean scores of those patients with lupus nephritis and center neural lupus or in active state were lower than those not or those in steady-going. The SLEDAI score and SLICC/ACR DI were the most important elements that affected the QOL in SLE patients and showed obviously negative correlated with one′s scores in SF-36. The glucocorticoid dose of patients was closely negatively correlated with one′s scores. The latter were also associated with age, education level and disease duration. Conclusion The health status of patients with SLE is mainly associated with disease activity,damage and therapy. The SF-36 is a valid instrument for measuring the health related QOL in SLE.