Objective To investigate the changes and its clinical significance of serum brain-derived neurotrophic factor (BDNF) level and plasma tissue plasminogen activator( t-PA ) level in patients with amnestic mild cognitive impairment (aMCI). Methods 99 aMCI patients (aMCI group) and 99 matched normal controls (NC group) were recruited for the present study. Multi-dimension neuropsychologic tests were used to extensively assess cognitive function of subjects. An enzyme-linked immunosorbent assay was applied to measure serum BDNF level and plasma t-PA level. The correlation analysis between serum BDNF level and plasma t-PA level tested by ELISA and cognitive function were also made. Results (1) The results neuropsychologic tests in aMCI guoup were significantly lower than those in NC group (all P

Child ; Humans ; Karyotyping ; Male ; Osteochondrodysplasias ; classification ; diagnosis ; genetics

Objective:To investigate the clinical value of the changes of serum complement,immunoglobulin and inflammatory cytokines in children with mycoplasma pneumonia (MP).Methods:60 cases of children with MP infection were collected as MPP group,60 cases of healthy children as control group.The serum levels of complement (C3,C4) and immunoglobulin (IgA,IgG,IgM) were detected by INA,the serum levels of inflammatory cytokines (IL-8,IL-10,IL-13,TNF-α) were detected by ELISA.Results:①The serum levels of IgM,C3,C4,IL-8,TNF-et and IL-13 in MPP group in acute stage were significantly higher than those in the recovery stage and control group (P＜0.05),the levels of IL-8,TNF-et,IL-13 in the recovery stage were significantly higher than those in control group (P＜0.05);the serum levels of IgA,IL-10 in MPP group in acute stage were significantly lower than those in the recovery stage and control group,and these were still significantly lower than the control group (P＜0.05);the IgG in MPP group in acute stage was not significant difference with control group (P＞0.05),but it in recovery stage was significantly higher than the acute stage and the control group (P＜0.05).②The serum levels of IgM,IgG,C3,C4,IL-8,TNF-et and IL-I 3 in MPP group in severe were significantly higher than those in the mild stage and control group (P＜0.05),and the levels of IgM,IL-8,TNF-αt,IL-13 in the severe stage were significantly higher than those in control group (P＜0.05);the serum levels of IgA,IL-10 in MPP group in severe stage were significantly lower than those in the mild stage and control group,and these in mild stage were still significantly lower than the control group (P＜ 0.05).Conclusion:Children with MP infection have a significant cellular and humoral immune dysfunction,the detection of the changes of serum complement,immunoglobulin and inflammatory cytokines is valuable to assessing the disease staging and degree.

Objective To compare the effects of rib internal fixation and thoracic external fixation in treatment of traumatic flail chest. Methods Eighty six cases of traumatic flail chest with multiple injuries,admitted to hospital from January 2006 to June 2009 ,were recruited into the study and divided into rib internal fixation and thoracic external fixation groups randomly. The clinical data were analyzed retrospectively. Rib internal fixations with Ti-Ni shape memory alloy embracing connector were performed in internal-fixation group(n = 45) and thoracic external fixations were performed in external-fixation group(n = 41). The outcomes were compared between the two groups. Results No patient in internal-fixation group developed chest wall deformity,while 19 patients in external-fixation group had chest wall deformity left. The mean times of hospital stay([ 15. 1 ± 1.8]d vs [22. 9 ±2. 8]d,t = - 15. 724,P ＜0. 01) ,ICU stay([5.7 ± 1.5]d vs [ 14. 4 ±2. 9]d,t =- 17.711, P ＜ 0. 01), and mechanical ventilation([ 3.9 ± 1.5 ] d vs [ 1 1.6 ± 2. 3 ] d, t = - 17. 256, P ＜ 0. 01),in internal-fixation group were significantly shorter than those in external-fixation group. The occurrence rate of respiratory complications (including pulmonary inflammation and (or) atelectasis and (or) respiratory failure)in internal-fixation group was significantly lower than those in external-fixation group(35.6% vs. 70. 7% ,x2 =10.641,P ＜ 0.01). Followed-up data of three months after discharge showed that the pulmonary function parameters, such as total lung capacity([ 89. 5 ± 3. 1 ] % vs. [ 79. 1 ± 5. 1 ] %, t = 11. 705, P ＜ 0. 01), forced vital capacity([ 80. 2 ± 2. 8 ] % vs. [ 69. 8 ± 3. 8 ] % ,t = 14. 241 ,P ＜0. 01) ,forced expiratory volume in the 1st second ([74.8 ±4.4]% vs. [71.9 ±3.6]% ,t =3.201,P ＜0.01),peak expiratory flow ([82.8 ±4.4]%vs. [79. 8 ±4. 9]% ,t =2. 885,P ＜0. 01) and forced expiratory flows at 75% of the vital capacity( [68.2 ±2. 2] % vs. [61.9 ± 2. 9 ]%, t = 11. 286; P ＜ 0. 01) were significantly higher in internal-fixation group than those in external-fixation group. Conclusion Rib internal fixation for traumatic flail chest can quickly correct chest wall deformity, stabilize thoracis and eliminate paradoxical chest wall movement. Patients accepted this treatment have a shorter therapy process during the intensive care unit and hospital stay, less pulmonary complications. They also show less long-term restrictive pulmonary functions impairment, when compared to the patients in the thoracic external fixation group. Rib internal fixation with Ti-Ni shape memory alloy embracing connector is a simple and effective therapy.

Objective To investigate the clinical utility of dual-energy virtual non-contrast CT(VNCT)of dual source CT in the di-agnosis and differential diagnosis of solitary pulmonary nodule(SPN).Methods Thirty-six patients with suspected SPN underwent chest plain single energy CT and dual-phase contrast enhanced CT (DECT)(25 and 90 s).The images of dual energy were sent to a commercial workstation for VNC image generation.CT values of SPN on VNC and true non-contrast(TNC),as well as signal-to-noise ratio(SNR)and contrast-to-noise ratio(CNR)were compared.The accuracy of calcification detection was compared according to the diameter and density of the calcification.The TNC images were used as the reference.Results CT values,SNR and CNR of VNC had no statistical difference among TNC and VNC at 25 s and 90 s(P >0.05).DECT VNC(5mm slice)could accurate detected calci-fication(diameter>2 mm,CT value>1 50 HU)in SPN.The 2 mm slice performed significantly better than 5 mm slice VNC images. Conclusion The VNC could provide consistent diagnostic information with TNC.The thin slice DECT VNC images can be used in clinical practice to replace TNC without losing small calcification in SPN,which has potential to reduce the patient radiation dose.

Objective:To explore the way to separate and culture eutopic and ectopic endometrial glandular cells and their stromal cells,providing an in vitro cell model of endometriosis for study of its mechanism. Methods:Digestion,filtration and sedimentation were used to isolate and culture the eutopic and ectopic endometrial glandular cells and their stromal cells. The estrogen level was imatated to study the way of promoting cell growth. Morphological characters of eutopic and ectopic endometrial cells were examined using optical microscope. Results:The success rate of separation and culture of normal control endometrial glandular cells and its stromal cells was 91.7%(11/12);of eutopic endometrial glandular cells and its stromal cells of endometriosis was 93.8%(15/16);of etopic endometrial glandular cells and its stromal cells of endometriosis was 75.0%(12/16) . Conclusion:The cultured eutopic and ectopic endometrial cells is more like human body feature than the endometriosis model of animals. So the isolation and culture of eutopic and ectopic endometrial glandular cells and their stromal cells may serve as an in vitro experimental model.

Adult ; Facial Hemiatrophy ; Humans ; Male

Child, Preschool ; Dwarfism ; congenital ; diagnosis ; Humans ; Male ; Osteochondrodysplasias ; congenital

Cell-Derived Microparticles ; Disease Progression ; Humans ; Leukemia ; pathology

Child ; Child, Preschool ; Cross Infection ; epidemiology ; etiology ; Hospitals, General ; Humans ; Infant ; Infant, Newborn ; Length of Stay ; Retrospective Studies