Bone Marrow Cells ; cytology ; physiology ; Humans ; Immunity ; Mesenchymal Stromal Cells ; cytology ; physiology

Objective To explore the pattern of cognitive impairments mainly caused by the white matter lesions(WML) in the frontal lobe in patients with subcortical ischemic vascular disease (SIVD).Methods Fifty SIVD patients were divided into severe WML group (visual score >3, n=27) and mild WML group(visual score ≤3, n=23) according to their severities of the WML in frontal lobe .Seven patients without SIVD were collected as controls .All patients underwent a set of neuropsychological battery ,and the results were analyzed .Results There was no statistical significance among three groups on basic data .Compared with mild WML group and control group , non frontal white matter scores and numbers of lacunes in frontal lobe of severe WML group were significantly higher ( all P=0.000).Compared with mild WML group,the Montreal cognitive assessment scale in severe WML group were significantly lower ( P=0.047 ) , and scores related to the executive function were significantly lower ( P=0.006 ) , even after adjusting the numbers of lacunes in frontal lobe ,there was statistically significant difference (P=0.038). Multiple regression confirmed that the Z scores of executive functions were mainly affected by white matter lesions located in the frontal lobe ( P=0.000 ) .Conclusion WML located in the frontal lobe mainly affect the executive function in patients with SIVD .

AlM: To observe the clinic effect of oral mucosa transplantation in the treatment of severe contracted conjunctival sac after ocular prosthesis implantation .
METHODS: Thirty-three cases ( 33 eyes ) with globe disorders and severe contracted conjunctval sac were operated ocular prosthesis implantation firstly, and conjunctival sac plasty using oral mucosa after 6mo.
RESULTS: Thirty - one cases were successful, no complications appeared. One case had primary ptosis and 1 case had recurrent conjunctival sac contracture.
CONCLUSlON:lt is recognised that the methods of oral mucosa transplantation in severe contracted conjunctival sac after ocular prosthesis implantation are effective on those cases.

Related literature and studies concerning the kinematics in patients after cervical arthrodesis have extensive?ly reviewed and comprehensively analyzed in 4 terms of changes in adjacent segment range of motion, motion segment per?cent contributions, motion pattern of cervical facet joints, and deviated center of rotation at adjacent segments. These report?ed researches of in-vivo kinematics after cervical arthrodesis are almost on the sagittal plane. Few data have been reported on the 6DOF kinematics under physiological loading conditions. Whether adjacent segment pathology caused by hypermobili?ty remains controversial. Long-term follow-up of large sample randomized controlled studies and obtaining the accurate 6DOF kinematics are the best way to resolve controversy.

Objective To evaluate the diagnostic value of the spectral CT imaging on the complications after breast augmentations with silicone implants.Methods A lot of 22 cases with breast implants were scanned by the Gemstone spectral imaging (GSI) CT.The original data were loaded in processed workstation, analyzed by GSI analysis software, and then stored the series we needed.The features of the complications after breast augmentations with silicone implants were reviewed retrospectively on the spectral CT images.Results A lot of 44 breast implants scanned in our study and there were 23 breast implants with complications, including 7 breast implants with capsular rupture (6 breast implants with endometrial rupture detected by spectral CT, including 4 breast implants with endometrial rupture, 3 breast implants with outer membrane rupture and leakage), 13 breast implants with capsular contracture (classification according to Baker's classification, 6 in grade Ⅰand 7 in grade Ⅱ), 8 breast implants were moved and 2 breasts had foci of calcification.Conclusions The spectral CT imaging play important role in detecting the complications after breast augmentations with silicone implants by GSI analysis software.

Objective To determine the three dimensional motion data of each segment of cervical vertebrae and analyze the characteristics of the intervertebral coupled motion during cervical axial rotation under physiological weight bearing. Methods A total of 16 healthy volunteers (ranging from 22 to 29, median age, 23 years) were recruited to our study. Any cervical spine disorder history, pain or other discomfort and malformations were excluded so as to avoid abnormal neck motion. These subjects underwent CT scans of their cervical segments in a supine position, and 3D models of C1-C7 were constructed. Next, each subject was asked to sit up straight and was positioned in the following sequence:maximal left and right twisting, while double oblique images by DFIS were taken simultaneously at each of the positions. Then, the CT models were matched to the osseous outlines of the images from the two oblique views to quantify the position of cervical vertebraes in 3D at each position. Through local coordinate systems at the center of vertebral bodies, changes of position and angle of each cephalad vertebrae relative to the cauddal one were calculated before and after the axial rotation. Results (1) In the axial rotation of the cervical spine, the contribution of C1/2 accounted for the most of the total cervical rotation range. For the lower levels, axial rotation was found to be maximal at C3/4 and C5/6, minimal at C2/3. (2) In cervical axial motion, C1/2 demonstrated a coupled lateral bending opposite to the axial rotation direction, while each segment of C2-7 demonstrated coupled lateral bending towards the same side of the axial rotation. Among these segments the lateral bending angle of C2/3 was smaller than angles of C3/4, C4/5 and C5/6. Conclusion This study investigated the cervical coupling behavior using the noninvasive 2D-3D matching technique and obtained the motion data at each cervical spinal segment. These findings will help to improve the understanding on physiological cervical spine movement and potential biomechanical mechanism and treatment of cervical spondylosis. Also our data may provide useful reference for the prosthesis design.

Objective To assess the relationship between Helicobacter pylori(Hp) infection and idiopathic thrombocytopenic purpura (ITP) in children.Methods All the published literatures of relationship between Hp infection and childhood ITP were searched by computer and manual search from 2000 to 2010 in the CNKI database,WANFANG database,Chongqing Vip database and Pubmed database.A comprehensive analysis of case control studies were used by Meta analysis and calculated the value of integrated OR and 95%CI.Results Thirty-five pertinent literatures were collected.After literature which study methods not fit the request were ruled out,there were 8 effective documents in all,including 6 Chinese literatures,and 2 English literatures.Meta analysis of OR value and 95%CI were 1.90(1.44-2.50),and Z value of combined effect of tests was 4.56 (P=0.000 01) in ITP group and control group.Meta analysis results of OR value and 95%CI were 0.74(0.49-1.13),and Z value of combined effect of the test was 1.38 (P=0.17) in acute ITP and chronic ITP group.Conclusions Hp infection is closely related with the incidence of ITP,but has nothing to do with the type of ITP.

Aneurysm ; complications ; diagnostic imaging ; Child ; Coronary Aneurysm ; complications ; diagnostic imaging ; Humans ; Mucocutaneous Lymph Node Syndrome ; complications ; diagnostic imaging ; Ultrasonography

Objective To evaluate the efficacy and safety,particularly eye safety of hydroxychloro-quine(HCQ)treatment in primary Sj(o)gren's syndrome(pSS)patients.Methods Forty pSS patients were en-rolled and treated with HCQ 400 mg/day for 12 months.This is a prospective open-label study.Clinical mani-festations,clinical efficacy,biochemical and immunoserological parameters as well as ophthalmological exami-nations were investigated every three months to assess the safety and tolerability.Results There were signifi-cant decrease in the erythrocyte sedimentation rate(ESR),immunoglobulin G(IgG),immunoglobulin M (IgM)and rheumatoid factor(RF)level after 6 months treatment with HCQ(P＜0.01 or P＜0.05).No changewas detected in serum antinuclear antibody(ANA),anti-SSA/SSB antibodies after treated for 12 months.Somepatients had partial improvement in symptoms such as dry mouth,dry eyes and arthralgia.During the treat-ment,no significant effect on serum alanine aminotransferase (ALT),blood urea (BUN),serum creatinine (Cr),whole blood count(WBC)or hemoglobin(Hb)could be discovered.Central semus retinopathv(CSR)was found in one patient after 6 months treatment with HCQ.However,its association with HCQ could not be confirmed since it was not compatible with the usual HCQ retinopathy.Conclusion HCQ can improve svmp-toms of some pSS patients and can significantly decrease ESR,IgG,IgM and RF level.The safety profile of HCQ is generally good.However,ophthalmological examination before and after a 6-month interval may be necessary in long term HCQ treatment.