Objective To observe the structural abnormalities of the painful shoulder in patients soon after stroke by M RI,and to identify the possible causes of post-stroke shoulder pain (PSSP).Methods Patients with hemiplegia following their first cerebrovascular accident were divided into 2 groups:PSSP group (32 patients) and post-stroke no shoulder pain (PSNSP) group (20 patients).Physical findings of affected shoulder and MRI findings of both affected and unaffected shoulders were evaluated.Results Shoulder subluxation was significantly more frequent in PSSP group than in PSNSP group (53％ vs 15％,P ＜0.05).In PSSP group,the incidence rate of rotator cuff injury,subacromial-subdeltoid bursa effusion,glenohumeral joint effusion,effusion of long head of biceps tendon was higher in affected side than that in unaffected side(63％ vs 13％,53％ vs 13％,75％ vs 31％,41％ vs 13％,respectively).In PSNSP group,the incidence rate of glenohumeral joint effusion was higher in affected side than that in unaffected side (70％ vs 17％).But compared with no pain hemiplegic shoulder,only rotator cuff injury and subacromial-subdeltoid bursa effusion were significantly higher in PSSP patients (63％ vs15％,53％ vs 25％,respectively),and there was significant difference between the two groups (P ＜0.05).Conclusion Rotator cuff injury was found to be a possible cause of PSSP.

Background Wearing of soft contact lens,as one of the important methods to correct ametropia,has been widely applied at present.The clinically deleterious effects of soft contact lens have been reported,but researches about influence of apoptosis of corneal epithelial cells are scant.Objective This study was to detect and compare the ratio of apoptosis of corneal epithelial cells between the patients with contact lens wearing and without contact lens wearing,and explore the influence of soft contact lens wearing for long term on growth of corneal epithelial cells after injury.Methods A retrospective nest case-controlled study was designed.Forty eyes of 20 myopic patients with wearing of soft contact lens for ≥5 years and 40 eyes of 20 myopic patients without wearing of soft contact lens were included in Affiliated Hospital of Guiyang Medical College.All the patients received the off-flap epipolis laser in situ keratomileusis (Epi-LASIK) from 2010 October to 2011 June.The corneal flaps were collected during the surgery.The apoptosis of corneal epithelial cells was detected by flow cytometry(FCM),and the difference of apoptotic proportion between the two groups was compared using independent sample t test.Results The FCM scatter plot showed that compared to the without contact lens wearing group,the early stage of apoptotic cells with high staining annexin V and low staining proaium iodide (PI) were much more,and survival cells with low staining annexin V and PI were less,and necrotic and late stage of apoptotic cells with high staining of annexin V/PI were more in the with contact lens wearing group.The early stage of apoptosis proportion of corneal epithelial cells was (11.23 ± 5.31)％ in the with contact lens wearing group,and that in the without contact lens wearing group was (7.31± 5.43)％,showing a significant difference between them (t=2.754,P=0.008).Conclusions A long term wearing of contact lens induce more apoptosis of corneal epithelial cells,which can result in a disorder of structure and function of ocular surface during the wound healing stage.

Objective To observe the therapeutic effect of pericarpium zanthoxylum oil on experimental hyperlipemia in mice. Methods Hyperlipemia model was reproduced in mice, and then pericarpium zanthoxylum oil was garaged for 4 weeks. Blood samples were obtained from retro-ocular vessel. The levels of blood lipids were determined, the hemorrheology parameters were determined by hemorrheometer, and the pathological changes in the liver of mice were observed microscopically. Results Zanthoxylum oil could obviously reduce contents of TC, TG, LDL-C (P

Objective To investigate the relationship between the polymorphism of the tumor necrosis factor-αgene-308 promoter and bronchial asthma (BA)in Uighur and Kazakh population in Xinjiang.Methods PCR product sequencing method was used to detect the polymorphism distribution of TNF-αgene in 60 BA patients and 60 controls among Xinjiang Uighur and Kazakh population.Then we analyzed the association between different TNF-αgenotypes and BA in Uighur and Kazakh population.Results The distribution of GG,GA and AA genotype was significantly different between the two groups.Statistical analysis showed that BA group had a significantly higher TNF-αA allele frequency than that of the control one (P <0.05).After adjustment for sex and age,we found the A allele was a risk factor for BA pathogenesis (P <0.05).Conclusion The polymorphism of TNF-α gene-308 may be associated with the susceptibility to BA in Xinjiang Uighur and Kazakh population,so TNF-α gene-308 may be considered as a genetic marker for early identification of individuals at high risk for BA,which may play an important role in preventing the development of BA in clinical practice.

Corneal endothelial cell(CEC)is the most critical part for the cornea, of which activity can influence the postoperative vision.It is very important for the clinical cornea preservation considering the function and its self-purification of donor cornea.There are a variety of classical methods, which can significantly prolong the saving time of donor cornea with its good quality of CEC.We reviewed the published papers about present preservation methods of cornea, which can give us many suggestions for the clinical cornea preservation.

Objective To explore the effects of Sanban manipulation of spine on ankylosing spondylitis (AS) at the early-middle stage.Methods 60 AS patients at the early-middle stage were divided into drug group (n=30) and manipulation group (n=30). The drug group wastreated with sulfasalazine and the sustained-release pills of Zhengqingfengtongning, while the manipulation group were treated with Sanbanmanipulation of spine additionally. Self-developed questionnaire were used to follow up before and 1, 3 and 6 months after treatment. ResultsThe Schober index and the finger-floor distance improved more in the manipulation group than in the drug group (P<0.05) 3 months aftertreatment. All the index improved more in the manipulation group than in the drug group (P<0.05) 6 months after treatment. ConclusionSanban manipulation of spine can improve the thoracolumbar activities in the AS patients at the early-middle stage.

Electroencephalogram (EEG) classification for brain-computer interface (BCI) is a new way of realizing human-computer interreaction. In this paper the application of semi-supervised sparse representation classifier algorithms based on help training to EEG classification for BCI is reported. Firstly, the correlation information of the unlabeled data is obtained by sparse representation classifier and some data with high correlation selected. Secondly, the boundary information of the selected data is produced by discriminative classifier, which is the Fisher linear classifier. The final unlabeled data with high confidence are selected by a criterion containing the information of distance and direction. We applied this novel method to the three benchmark datasets, which were BCI I, BCI II_IV and USPS. The classification rate were 97%, 82% and 84.7%, respectively. Moreover the fastest arithmetic rate was just about 0. 2 s. The classification rate and efficiency results of the novel method are both better than those of S3VM and SVM, proving that the proposed method is effective.
Algorithms ; Brain-Computer Interfaces ; Electroencephalography ; classification ; Humans

Objective To evaluate the diagnostic value of contrast-enhanced ultrasound(CEUS) in regenerative nodules(RNs)and small hepatocellular carcinoma(sHCC).Methods Thirty-four cases of liver cirrhosis with small nodule were examined by CEUS.Among these cases,18 cases with 20 lesions were diagnosed s HCC,16 cases with 18 lesions were diagnosed RN eventually,all the diagnoses were confirmed by pathology.Perfusion characteristic and quantitative difference of RNs and sHCC were summarized.Results ①The majority of sHCC showed hyper-enhancement during the arterial phase,iso-enhancement or hypo-enhancement during the portal phase,hypo-enhancement during the late phase.The enhanced phase and degree of RNs were diverse,most of RNs showed iso enhancement during the three phases.The enhanced phase of two groups had significant difference(P ＜0.05).②The enhancement type of RNs and sHCC had no significant difference (P ＞ 0.05).③ 11 of 20 sHCC lesions showed contrast-enhancement pattern of fast-in and slow-out,9 lesions were fast-in and fast-out;among 18 RNs,1 lesion enhanced during the portal phase and the late phase,it didn't enhanced during the arterial phase,3 lesions started to enhanced at the late arterial phase,14 lesions were iso-enhancement during the three phases.④Comparison of parameters of RNs and the adjacent liver parenchyma had no significant difference(P ＞0.05).Compared with the adjacent liver parenchyma or RNs,the arrival time and peak time were shorter,the peak intensity and the curve sharpness were higher in sHCC (P ＜ 0.05).Conclusions CEUS is a useful method to distinguish RNs and sHCC in liver cirrhosis.

Adult ; Aged ; Aged, 80 and over ; Humans ; Middle Aged ; Pneumoconiosis ; diagnostic imaging ; Radiography, Thoracic ; methods ; Tomography, X-Ray Computed ; X-Ray Film

Animals ; Animals, Newborn ; Bone Marrow Transplantation ; Disease Models, Animal ; Humans ; Hypoxia, Brain ; physiopathology ; prevention & control ; Rats ; Rats, Sprague-Dawley ; Stromal Cells ; transplantation ; Transplants ; trends