Since it has been found that autoimmune thyroid diseases (Graves' disease and moyamoya disease) may have a causal relationship mediated by immune mechanism, the relationship between thyroid autoantibodies and cerebrovascular diseases has attracted more and more attention. Recent studies have shown that thyroid antibody abnormalities can affect the occurrence and development of vascular events. Therefore, this article reviews the relationship between thyroid autoantibodies and intracranial artery stenosis and the related mechanism.

Objective To analyze the clinical features of vasovagal syncope, enhance its clinial awareness and to promote the importance of history taking in the differential diagnosis of syncope. Methods A total of 83 patients with the diagnosis of vasovagal syncope were included in the study and their data were, undergone retrospective statistical analysis. Results A 63.9% of patients had recurrent syncope. There was 73.5% of them had motivation and 80.7% of them had presyncope symptoms. Complete loss of consciousness was found in 77.1% of patients. There was 39.1% of them had concomitant symptoms and 39.1% had postsyncopal symptoms. In 54.2% of the patients the duration of syncope was less than 2 minutes. Conclusion It is important to pay attention to history taking and to anylaze the clinical features in the diagnosis of vasovagal syncope.

Objective To summarize the effect and safety of percutaneous coronary intervention (PCI) for CHD in patients with single patent coronary artery. Methods We collected the data of CHD in 10 patients with single patent coronary artery who underwent PCI and analyzed them retrospectively. Results All patients with single patent coronary artery had successful PCI. Symptoms of all the CHD patients had been significantly relieved after PCI. No major adverse cadiac events occurred in hospitalization. Conclusion The data suggest that the patients with single patent coronary artery might be treated with PCI effectively and safely.

Objective To investigate the effectiveness, dose-effect and time-effect relationships for inhibiting neointimal proliferation by 103 Pd radioactive stent, and the safety of the radioactive stent. Methods By angiogaphic, morphometric and histopathologic analysis, we compared 1?000 ?Ci, 500 ?Ci and 100 ?Ci 103 Pd stents with non-radioactive stents on 5 weeks and 12 weeks after stenting in a micro-porcine coronary model of restenosis. Results The neointimal areas of 500 ?Ci and 100 ?Ci 103 Pd stents were significantly smaller than control stents. 1?000 ?Ci stents and control stents had similar neointimal areas. The neointimal areas of 500 ?Ci stents were significantly smaller than 100 ?Ci stents. Compared with control stents, 500 ?Ci stents reduced the neointimal areas by 49% and 50% respectively on 5 weeks and 12 weeks after stenting. Compared with 5 weeks after stenting, the effect of inhibiting neointimal proliferation by 100 ?Ci stents was reduced by 56% (32% vs 14%) on 12 weeks. The neointimal areas on both edge of 100 ?Ci stents were significantly larger than control stents. The neointimal areas on both edge of 1?000 ?Ci stents and 500 ?Ci stents were similar with control stents. No evident radiation damage had been found in the experimental animals who had 103 Pd stent. Conclusion There may be an effective dose window for 103 Pd radioactive stent in inhibiting neointimal proliferation. The effect of inhibiting neointimal proliferation was dose dependent. 103 Pd radioactive stent with appropriate activities may effectively, persistently inhibit neointimal proliferation with no adverse radiation sequelae. These results suggest that 103 Pd radioactive stent prevent restenosis. These data may be useful in predicting safe and effective activity for 103 Pd radioactive stent.

Post-traumatic stress disorder (PTSD) is a kind of mental disorder that usually occurs after life-threatening and strong mental traumas .Clinical studies showed that the PTSD patients are 3 times more likely to have can-nabis as compared with the healthy people .The use of cannabinoids has a close relationship with the occurrence and clini-cal manifestations of PTSD .Experimental studies revealed that endocannabinoid ( eCB) signal alterations in animal models of PTSD influenced fear memory of the animals , suggesting a close correlation between the eCB system and the pathogenesis of PTSD.Given that the eCB system was reported to regulate affective states and participate in memory consolidation , re-trieval and extinction , targeting the eCB system may improve the emotional and cognitive features of PTSD , thereby holding out great promise for the development of novel approaches for clinical treatment of PTSD .

Objective To retrospectively evaluate the necessity to dissect the recurrent laryngeal nerve in operation of thyroid gland.Methods From Jan 2004 to Jan 2009,there were 512 patients in our hospital who underwent operation of thyroid gland,and they were divided into two groups aecording to whether or not the recurrent laryngeal nerve was dissected during the operation.The rate of injury of recurrent laryngeal nerve between the two groups was compared.Results Among the 189 cases in dissection of recurrent laryngeal nerve group,3 cases(1.59%) had hoarseness after operation,and in the 323 cases without dissection of the recurrent laryngeal nerve group,5 cases(1.55%) had hoarseness after operation,but the difference was not significant(1.59% vs.1.55%).However,in the high risk cases between the two groups,the difference was significant(1.02% vs.3.95%).Conclusions Whether oe not to dissect the recurrent laryngeal nerve should be decided by the specific circumstances.For most benign lesions,one should,if possible,not expose the recurrent laryngeal nerve;but for large thyroid neoplasms,second or multiple operations and thyroid cancer,exposure of recurrent laryngeal nerve is necessary.

Objective To investigate the functions of blood plasma homocysteine (Hcy) and high sensitivity C-response protein (hs-CRP) in the chronic obstructive pulmonary disease (COPD) in pathogenesis plays,and observe whether there was associations with disease severity and the correlations.Methods Forty-one patients with COPD were collected from August 2010 to February 2011,and 35 healthy persons as control group.Blood plasma Hcy,hs-CRP,forced expiratory volume in one second account predicted (FEV1％ predicted),and arterial pressure of oxygen (PaO2,arterial blood gases analysis) were measured in COPD patients and controls.Results Plasma Hcy concentration was (22.07 ± 12.13) μmol/L in COPD patients,but (9.89 ±4.41) μmol/L in controls,there were significant differences between two subjects (t =1.674,P ＜0.01).COPD patients had a higher serum hs-CRP concentration (8.60±3.85) mg/L than control's (4.24 ±0.57) mg/L (t =1.682,P ＜ 0.01).Along the descent of FEV1％ predicted,plasma Hcy and hs-CRP were elevated gradually,both sides show a negative correlation (r =-0.45,-0.49,P ＜ 0.05).And plasma Hcy and hs-CRP present a positive correlation in COPD patients (r =0.68,P ＜ 0.01).Conclusion Plasma Hcy was significantly elevated in COPD patients,positive correlation related to COPD severity and positive correlation related to serum hs-CRP.

Background Choroidal neovascularization (CNV) is a major cause of visual loss in many fundus diseases.Fundus angiography (FA) is essential for the diagnosis,location and treatment of CNV.However, FA is an invasive examination method.Split spectrum amplitude decorrelation angiography (SSADA) OCT can quickly and clearly provide vascular signals.However, whether SSADA-OCT is feasible in the evaluation of CNV remains unclear.Objective This study was to detect and quantify CNV using OCT angiography.Methods Thirteen patients with unilateral CNV were included in Beijing Tongren Eye Center from June 2014 to August 2014.All affected eyes of the subjects were scanned with a high-speed frequency domain OCT.The SSADA-OCT images were obtained by scanning of macula covered 6 mm×6 mm area.The CNV area and grey scale were computed from the en face OCT images of retinal layer and choroidal layer.This study followed the Helsinki Declaration and was approved by the Ethics Committee of Beijing Tongren Hospital,and written informed consent was obtain from each patient prior to any medical examination.Results SSADA-OCT angiogram revealed CNV area and location confirmed by fluorescein angiography,and the CNV blood flow information of internal limiting membrane,inner plexiform layer,retinal pigment epithelium,and choroid was exhibited by OCT angiography.All CNVs with different causes showed the well defined and hyperreflected signal in macular region.The average CNV area was (0.15 ±0.09)mm2 , and the average grey scale of CNV was 75.40±32.35 in the affected eyes,and that in the contralateral eyes was 26.99±22.87 in the 300 μm area,showing significant elevation in gray scale in the affected eyes compared with the contralateral eyes (t =6.946, P＜0.001).Conclusions OCT angiography is a noninvasive observation technique of retinal and choroidal blood flow.It can provide quantitative information and detailed images of CNV.

Background Cystoid macular edema (CME) is caused by many fundus diseases.The noninvasive clinical diagnosis methods for CME are conventional color fundus photography up to now.However,these images can not display the CME range well.Confocal scanning laser ophthalmoscope (cSLO) based retinal imaging can provide clear picture with high contrast.However,whether cSLO imaging is feasible in the quantitative assessment of CME remains unclear.Objective This study was to image the boundary of CME and assess the quantification of CME image from cSLO imaging technology.Methods A series case-observational study was designed.This study protocal was approved by Ethic Committee of Beijing Tongren Hospital.cSLO based retinal imaging technology was carried out on consecutive 24 eyes of 24 patients with clinically diagnosed and OCT confirmed CME in Beijing Tongren Eye Center from August to December 2015 under the informed consent of each individual.The radial scan range was 45°× 45 ° and the line scan level was 49 at macula area.The pseudocolar image,green light reflective image (532 nm) and infrared reflective image (785 nm) were collected.The imaging was analyzed by EasyScan software (version 1.2.2).Fundus color photography and SD-OCT were carried out in each patient.The images were graded by specialists according to the SD-OCT cross sectional results.Results The primary causes of CME included epiretinal membrane (10 eyes),branch retinal vein occlusion (BRVO) (6 eyes),central retinal vein occlusion (CRVO) (4 eyes),diabetic retinopathy (DR) (3 eyes) and CRVO with BRVO (1 eye).A CME image was exhibited on the fundus color photogram with the obscure boundary;while the clear range of CME was displayed by the cSLO imaging.The mean score of CME from pseudocolar image,green light reflective image and infrared reflective image was 3.21±0.78,2.67±0.96 and 2.54±0.83,respectively,which was significantly higher than 1.33±0.82 from the fundus color photography (all at P＜0.01).Conclusions In CME patients,the imaging quality from cSLO-based retinal imaging technology is better than that from traditional fundus color photography.Combined with SD-OCT sectional scan analysis,cSLO-based retinal imaging technology may offer a method to observe and record more fundus details for CME diagnosis.

Objective: To determine the expression of human telomerase reverse transcriptase (hTERT) and P53 in thyroid carcinoma and its relationship with development and prognosis of the carcinoma. Methods: Totally 90 cases of thyroid specimens (60 thyroid carcinomas, 10 thyroid adenomas, 10 goitres and 10 normal thyroid tissues) were studied by SP immunohistochemical method. Results: Positive immunoreactivity of hTERT and P53 was higher in thyroid carcinoma (P<0.05). The positive rates of hTERT and P53 were higher in undifferentiated carcinomas, carcinomas with lymph nodes metastasis or at stage III + IV than in well-differentiated carcinomas, carcinomas without lymph nodes metastasis or at stage I + II (P<0.05). The expression of hTERT was significantly related with that of P53 (P<0.05). Conclusion: Over-expressed hTERT and P53 may be related to the carcinogenesis and progression of thyroid carcinoma and hTERT expression is related to P53 protein. Examination of expression of hTERT and P53 proteins may be helpful to judge the thyroid cancer's behavior and prognosis.