Objective To inspect the applicability of fast reading training on college students with hearing impairment and variability with cognitive flexibility. Methods Sixty-two hearing impaired students were divided into intervention group (n=30) and control group (n=32). The intervention group received fast reading training eight times, and the control group accepted conventional reading practice. They were subgrouped into high level and low level of cognitive flexibility according to their achievements of Cognitive Flexibility Scale for Col-lege Students. They were asked to read four essays before and after intervention, respectively. Results For the reading speed and valid read-ing speed, the effects of intervention were significant (F>66.62, P<0.001), as well as the time of training (F>80.35, P<0.001) and cognitive flexibility (F>9.68, P<0.01). For the comprehension, the effect of the time of training was significant (F=4.96, P=0.003), but it was not for the intervention (F=1.269, P=0.265) and cognitive flexibility (F=1.475, P=0.230). Conclusion Fast reading training may improve the read-ing speed of college students with hearing impairment, and may be more effective for those with high level of cognitive flexibility.

ObjectiveTo determine the change of coagulation in acute brain infarction.MethodsBlood samples were taken intravenously from 57 patients with acute brain infarctions (within 24hr) and the thrombin time(TT), prothrombin time(PT), activated partial thromboplastin time(APTT), fibrinogen(FIB) levels were detected serially at the time of instant admission, 1st day ,3rd day and 7th day after routine therapy, including 21 patients whose thrombin antithrombin III complex(TAT) levels were detected at the same time.ResultsTAT levels were significant increased in acute brain infarctions, especially in acute progress stroke, but TT, PT, APTT were not significantly different before and after routine treatment. FIB levels were higher at 7th day than pre-treatment. ConclusionTAT levels can be served as a marker of progress stroke.

Objective To explore the correlation of β2-adrenergic receptor (β2-AR) polymorphisms (Arg16Gly) with early onset Myasthenia Gravis (MG). Methods Forty-eight with age less than 40 years at disease onset were divided into three groups:normal thymus (13 cases), thymic hyperplasia (22 cases) and thymoma (7 cases) groups according to the thymus histology. These patients were further divided into different subgroups including female (31 cases) and male groups (17 cases) based on the gender, OMG (29 cases) and GMG (19 cases) groups according to the symptom of disease onset and groups associated with (10 cases) or without (33cases) other autoimmune diseases Or with unknown causes (5 cases). The genotypes ofβ2-AR in 48 early onset MG were determined by gene sequencing. Results Arg/Arg was more common in early MG patient with normal thymus ( 53.8%)and thymic hyperplasia(54.6%)whereas Arg/Gly was more common in thymus group(71.4%). The difference in distribution of the genotypes between the three groups was not statis?tically significant (χ2=5.657,P=0.226). Arg/Arg was more common in early female MG patient (58.1%) and Arg/Gly was more common in male MG patients (58.8%). The difference in distribution of the genotypes between the two groups was
statistically significant (χ2=6.064,P=0.048). Arg/Arg was more common in early OMG patient (48.3%). Arg/Arg(42.1%) and Arg/Gly(47.4%) were equal common in GMG patients. The difference in distribution of the genotypes between the two groups was statistically significant ( χ2=1.623,P=0.444). Arg/Arg was more common in early MG patient associated with other autoimmune diseases (80.0%). Arg/Gly was more common in MG patients without other autoimmune diseases (39.4%). The difference in distribution of the genotypes between the three groups was statistically significant (χ2=6.394, P=0.041). Conclusionβ2-AR gene polymorphism in position 16 is associated with gender and other autoimmune diseas?es in patients with early onset of MG.

Neuropsychiatric systemic lupus erythematosus (NP-SLE) is more common in young woman but not yet in people over 75 years old.We report a case of NP-SLE in an old woman,who complained of tremor,hypermyotonia and gatism.The lab examinations showed strong positive (1∶3200) ANA,decreased levels of CH50,C3,C4,WBC,RBC,PLT,anti-ds-DNA(+),anti-Sm(+),SSA(+),PO(+),RO-52(+),urine blood (+) and protein (+).The proteins,MBPand IgGin CSF were increased.Head MRI scan showed many demyelination in bilateral intra ventricular and multiple patchy irregular long T1 and T2 signal under right parietal subcortical.The patient was immediately given methylprednisolone hormone therapy,combined with gamma globulin and hydroxychloroquine.After 4 days of treatment,most symptoms such as tremor and hypermyotonia disappeared.Laboratory tests showed that all immune markers changed better in three weeks.The patient was discharged in 4 weeks.it must be identified with cerebrovascular disease,Parkinson's disease and other common diseases in elderly people.It can be improved if the diagnosis and treatment of NP-SLE is immediately and the illness is well controlled.

Objective To explore the correlation of β2-adrenergic receptor (β2-AR)polymorphisms (Arg16Gly) with the prognosis of myasthenia gravis (MG) complicated with other autoimmune diseases.Methods Among the 75 MG patients in analysis,17 cases were complicated with other autoimmune diseases (AIDMG),58 cases without other autoimmune diseases (NAIDMG).MG patients,AIDMG patients,NAIDMG patients were separately divided into recurrence groups and nonrecurrence groups according to the progression at 2 years after onset.The genotypes of β2-AR in 75 MG patients were determined by gene sequecing.Results The frequencies of three genotypes (Arg/Arg,Arg/Gly and Gly/Gly) in position 16 were 30.8％,50.0％,19.2％ in recurrence MG group and 42.9％,38.8％,18.3％ in non-recurrence MG group respectively.The difference in distribution of the genotypes between recurrence MG group and non-recurrence MG group was not statistically significant (x2 =1.150,P=0.563).The frequencies of Arg and Gly allele were 55.8％ and 44.2％ in recurrence MG group,and 62.2％ and 37.8％ in non-recurrence MG group.The difference in distribution of the alleles between the two groups was not statistically significant.The frequencies of 3 genotypes in position 16 were 27.3％,63.6％ and 9.1％ in recurrence AIDMG group and 100.0％,0,0 in non-recurrence AIDMG group,respectively.The frequencies of Arg and Gly allele were 59.1％,40.9％ in recurrence AIDMG group,and 100.0％,0 in non-recurrence AIDMG group.The difference in distribution of the genotypes between recurrence AIDMG group and non-recurrence AIDMG group was statistically significant (P =0.009).There also was significant difference in distribution of alleles between recurrence and non-recurrence AIDMG groups (x2 =6.676,P =0.010).The frequencies of 3 genotypes in position 16 were 33.3％,40.0％ and 26.7％in recurrence NAIDMG group and 34.9％,44.2％,20.9％ in non-recurrence NAIDMG group,respectively.The frequencies of Arg and Gly allele were 53.3％,46.7％ in recurrence NAIDMG group,and 57.0％,43.0％ in non-recurrence NAIDMG group.There was no significant difference in distribution of genotypes or alleles between recurrence and non-recurrence NAIDMG groups.Conclusion β2-AR gene polymorphism in position 16 may predict the prognosis of AIDMG,and there is no correlation between the polymorphism in position 16 of β2-AR and the prognosis of MG and NAIDMG.

Objective To investigate the association of glucocorticoid receptor (GR) polymorphisms (BclI)with the prognosis of myasthenia gravis (MG).Methods We totally enrolled 74 patients diagnosed as MG from the Department of Neurology,Beijing Shijitan Hospital between 2002 and 2014.Of them,54 patients started with ocular MG and 20 patients started with general MG.MG patients were divided into recurrence group and non-recurrence group according to the progression at two years after onset.Patients with simple ocular symptom at disease onset were further divided into generalized MG (GMG) group and single ocular MG (OMG) group according to disease progression or not.The GMG group was divided into two groups (≤6 months,7-24 months) according to the progression time of generalization.The GMG group was further divided into three groups (limbs,throat,both limbs and throat) according to the first symptom of generalization.The genotypes of GR were determined by polymerase chain reaction and nucleotide sequence determination.Results The frequencies of three genotypes (GG,CG,CC) in BclI were 57.7％,34.6％,7.7％ in recurrence MG and 64.6％,31.3％,4.1％ in non-recurrence MG respectively.The difference in distribution of the genotypes between the two groups was not statistically significant (x2 =0.570,P =0.750).The frequencies of G and C allele were 75.0％ and 25.0％ in recurrence MG,and 80.2％ and 19.8％ in non-recurrence MG.The difference in distribution of the alleles between the two groups was not statistically significant (x2 =0.540,P =0.462).The frequencies of three genotypes GG,GC and CC were 55.9％,35.3％,8.8％ in GMG and 2/6,4/6,0/6 in OMG respectively.The frequencies of G and C allele were 73.5％ and 26.5 ％ in GMG,and 8/12,4/12 in OMG.The difference in distribution of the genotypes and alleles between the two groups was not statistically significant (x2 =2.278,P =0.320;x2 =0.241,P =0.624).The frequencies of three genotypes GG,GC,CC were respectively 61.9％,28.6％,9.5％ and 3/6,3/6,0/6 in ≤6 months,7-24 months of GMG group.The frequencies of G and C allele were 76.2％,23.8％ and 9/12,3/12 in the two groups.The difference in distribution of the genotypes and alleles between two of the three groups was not statistically significant (x2 =1.326,P =0.515;x2 =0.007,P =0.932).The frequencies of three genotypes GG,GC and CC were respectively 2/8,4/8,2/8;11/13,2/13,0/13 and 3/6,3/6,0/6 in limbs,throat,both limbs and throat of GMG group.The frequencies of G and C alleles were 8/16,8/16;92.3％,7.7％ and 9/12,3/12 in the three groups.The difference in distribution of the genotypes and alleles between two of the three groups was statistically significant (x2 =8.813,P =0.028;x2 =9.706,P =0.008).The genotype frequencies in every group were all in Hardy-Weinberg equilibrium.Conclusions BclI polymorphism may predict the first generalized symptom of OMG.BclI polymorphisms of GR might have no relationship with the recurrence of MG,generalization and generalized time of OMG during the first two years after MG onset.

Objective To investigate the clinical effect of the 1 470 nm diode laser for the treatment of superficial bladder tumor.Methods Two hundreds and sixteen patients diagnosed with superficial bladder tumor were treated in our hospital from January 2012 to January 2014 and divided into the laser group and electric cutting group.The two groups were treated by 1 470 nm diode laser and transurethral plasma kinetic resection respectively.The basic data and the observation indexes were compared be tween the two groups.Results The operation time,intraoperative bleeding volume,indwelling catheter time and hospital stay time in the laser group were significantly less than those in the electric cutting group.The levels of epinephrine,norepinephrine and an giotensin Ⅱ in operation and at postoperative 6 h in the laser group were significantly lower than those in the electric cutting group (P＜0.05).The obturator nerve reflex and bladder perforation did not occur in the laser group,and the total complications occurrence rate was 5.1％,the bladder tumor recurrence rate in postoperative 24 months was 7.1％.The obturator nerve reflex occurrence rate was 7.6％,the vesical perforation rate was 1.7％,the total complications occurrence rate was 15.3％,the bladder tumor recurrence rate in postoperative 24 months was 17.8 ％ in the electric cutting group.The above indexes of the laser group were significantly lower than those of the electric cut group(P＜0.05).Conclusion The 1 470 nm diode laser for the treatment of noninvasive superficial bladder tumor has definitely curative effect,is easy to operate with low postoperative complication occurrence rate,high safety and low middle and long term recurrence rate,moreover has little influence on patient's stress level.

Due to the particularity of marine ecological environment, many marine lives have developed and accumulated a large amount of biological molecules with special chemical structures and physiological activities, representing an important resource for the development of marine drugs. Generally, the marine antibacterial proteins are mainly identified from the marine microorganisms, invertebrates and fish.In this review, the progresses on marine antibacterial peptides and antimicrobial activity proteins are briefly summarized.

ObjectiveTo investigate the protective effect of tanshinoneⅡA on the expression of S100A1 protein after acute myocardial ischemia injury in rats.Methods Sixty Wistar rats were randomly divided into sham operation group, acute myocardial ischemia model group and tanshinoneⅡA pretreatment group by random number table. The acute myocardial ischemia model was established by thoracotomy and penetration of a thread and occlusion around the root part of the left anterior descending coronary artery, while the sham operation group was established only by thoracotomy and penetration of a thread around the root part of that artery but without occlusion; 3 days before the operation, in the tanshinoneⅡA pretreatment group, intraperitoneal injection of tanshinoneⅡA solution(at a dose of 1.5 mg/kg) was applied, while in the sham and acute myocardial ischemia groups, intraperitoneal injection of an equal volume of saline was given. Myocardial cell apoptosis was detected by the terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling(TUNEL), the levels of serum superoxide dismutase (SOD), malondialdehyde(MDA), creatine kinase(CK), lactate dehydrogenase(LDH) and S100A1 protein were examined and the level of expression of S100A1 protein in myocardial tissue was assayed by immunohistochemical staining and Western Blot.Results Compared with the sham operation group, the myocardial cell apoptosis rate, the contents of MDA, CK, LDH, S100A1 and the level of S100A1 expression in myocardial ischemia group and tanshinoneⅡA pretreated group were significantly increased, while SOD activity was decreased obviously; compared with the myocardial ischemia model group, the myocardial cell apoptosis rate, the contents of MDA, CK, LDH, S100A1 and the level of S100A1 protein expression were significantly reduced〔apoptosis rate:(32.1±4.2)% vs.(72.4±5.4)%, MDA(μmol/L): 9.1±2.2 vs. 17.3±5.2, CK(U/L): 83.3±12.2 vs. 107.5±12.4, LDH (μmol·s-1·L-1): 84.0±16.4 vs. 114.4±16.0, S100A1(μg/L): 37.6±6.0 vs. 78.4±8.6,P<0.05 orP<0.01〕, while the activity of SOD was increased markedly in tanshinoneⅡA pretreated group(kU/L:72.8±10.2 vs. 49.6±8.8,P<0.01). TUNEL staining showed that in the myocardial ischemia model group and tanshinoneⅡA pretreated group, the myocardial cells represented positive staining(brown-yellow in color), irregular in shape with nuclear pyknosis, cell detachment from the surrounding tissue and other characteristics. And in sham operation group,the staining of majority of cells was negative. The results of immunohistochemistry showed that S100A1 protein staining was relatively deep in the myocardial ischemia model group and tanshinoneⅡA pretreated group, and in the latter group, the color of S100A1 protein positive staining was not as deep as that in the former group. Western Blot showed that the S100A1 protein expression in myocardial ischemia model group was 2.8 folds of that of the sham operation group, while the S100A1 protein expression in tanshinoneⅡA pretreated group was significantly decreased compared with that of myocardial ischemia model group(bothP<0.05),which was 1.5 folds of that of the sham operation group.ConclusionTanshinoneⅡA may play a role in inhibiting the expression of S100A1 protein to protect against acute myocardial ischemia injury, suggesting that this agent have a potential effect for treatment of myocardial ischemia.

ObjectiveTo comprehend the progress of perforator flap research and speculate its developmental trends.MethodsPubMed search was conducted to retrieve the papers published before November,2011.Analyze the literatures about perforator flap on years,nationalities,languages,journals and frequencies of the key words by using Endnote 8.0. ResultsAll 1719 literatures about perforator flap have been collected by PubMed till Oct.31,2011.Lots of them,amount to 51.5 percent,were from USA,China,Japan and UK. ConclusionEnglish was the main publishing language.The articles,which were mainly published by the Plast Reconstr Surg and other 10 journals,add up to 78.7％.The research emphases of the perforator flap will be breast reconstruction, repair defect, deep inferior epigastric artery perforator flap, anterolateral thigh flap,thoracodorsal artery flap,perforator flap of gluteal artery,and posterior leg perforator flap.Angiography and 3D-reconstruction,immunohistochemistry,and neovascularization are the new trend in flap research.