Objective To investigate the surgery timing for patients with intermittent exotropia.Methods Far and near stereopsis of 36 patients with intermittent exotropia were measured preoperative and postoperative six months respectively,and the results were analyzed.Results Near stereopsis were measured preoperative in 30 cases (83.3％,30/36) with intermittent exotropia.But far stereopsis were measured preoperative in 7 cases (19.4％,7/36) with intermiuent exotropia.There was statistic significance (P ＜0.05).Near stereopsis were measured preoperative in 30 cases (83.3％,30/36) with intermittent exotropia and postoperative in 35 cases (97.2％,35/36).There was statistic significance (P＜0.05).Far stereopsis were measured preoperative in 7 cases (19.4％,7/36) with intermittent exotropia and postoperative in 14 cases (38.9％,14/36).There was statistic significance (P＜ 0.05).Conclusions Far stereopsis would be an important factor to choice the surgery timing for patients with intermittent exotropia.Operation is beneficial to restore far and near stereopsis.

Objective To study the safety of Plumula nelumbinis microcapsules and its anti-arrhythmic effect.Methods Acute toxicity test in mice,arrhythmia mice models induced by chloroform and arrhythmia rats models induced by barium chloride(BaCl2)were adopted.Results The maximum tolerance dose for mice was 16.0 g/kg body weight.The microcapsule decreased the incidence of chloroform-induced ventricular fibrillation in mice significantly(P 0.05,compared with the blank control group).Conclusion The preliminary results show that Plumula nelumbinis microcapsule is safe,and exerts anti-arrhythmic effect against experimental arrhythmia.

Objective　To investigate the method and effect of krypton laser photocoagulation for neovascularization in retinal vein occlusion.　Methods　Tweenty eight eyes of 27 patients with retinal vein occlusion with neovascularization were photocoagulated by krypton-green and-red laser.The fundus changes were observed by fundus fluorescein angiography after photocoagulation.　Results　The neovascularization disappeared completely in 20 eyes and became smaller in 6 eyes,remained no-change in 2 eyes,and the visual acuity improved in 17 eyes (60.7%) after 6 monthes to 2.5 years of follow-up.　Conclusion　Krypton laser photocoagulation is obviously effective on regression of neovascularization and prevenion of vitreous hemorrhage in retinal vein occlusion.

Objective To investigate the method and effect of krypton laser photocoagulation for neovascularization in retinal vein occlusion. Methods Tweenty eight eyes of 27 patients with retinal vein occlusion with neovascularization were photocoagulated by krypton-green and-red laser.The fundus changes were observed by fundus fluorescein angiography after photocoagulation. Results The neovascularization disappeared completely in 20 eyes and became smaller in 6 eyes,remained no-change in 2 eyes,and the visual acuity improved in 17 eyes (60.7%) after 6 monthes to 2.5 years of follow-up. Conclusion Krypton laser photocoagulation is obviously effective on regression of neovascularization and prevenion of vitreous hemorrhage in retinal vein occlusion.

Objective To investigate the clinical significance between congestive heart failure (CHF) and serum thyroxine. Methods 50 patients with CHF (7 cases of grade Ⅱ heart function,grade Ⅲ 19 cases,grade Ⅳ 24)and 30 normal persons wre selected. The serum triiodothyronine( T3 ), four-triiodothyronine( T4 ), free triiodothyronine (FT3), free triiodothyronine (FT4), thyroid stimulating hormone TSH were determined by radioimmunoassay. Results The T3, FT3 contens ( 1.95 ± 0.55) nmol/L, (2.20 ± 0.39 ) pmol/L in CHF group were lower than the control group (2.4 ± 0.50) nmol/L, ( 5.89 ± 0. 45 ) pmol/L ( t = 2. 415,2. 325, P < 0.05 ); The T3, FT3 contens ( 2.19 ± 0. 53 )nmol/L,(3.69 ± 0.57)pmol/L after treatment were significantly higher than that before treatment (t =2. 375,2. 405, P < 0.05 ); The T3, FT3 contens in cardiac function with stage Ⅳ ( 1.76 ± 0.7) nmol/L, ( 1.99 ± 0. 45 ) pmol/L were significantly lower than the control group( t = 2.245,2. 375, P < 0.05 ); Serum TT3, TT4 and cardiac function was negatively correlated ( r = -0.933, -0.383, all P < 0.05 ) , serum FT3, FT4,TSH and cardiac function were not correlated. Conclusion The changes of serum thyroid level could be used as an index of the severity of heart failure.

Calcineurin (CaN) serves as a key enzyme in human immune regulation. The most important target of this enzyme is the transcription factors of nuclear factors of activated T cells (NFATc). The discovery of the immunosuppressive function of CaN inhibitors (CNIs),ciclosporin A (CsA) and tacrolimus (FK506),has helped overcome the immune rejection of organ transplantion and changed organ transplantion fundamentally. Both of these drugs are still widely used in clinical and basic research,but their therapeutic effects are limited by their serious side effects,including renal tox?icity and neurotoxicity. Therefore,the development of new CNIs with higher specificity and fewer side effects in the clinic is a focus of research. In this paper,the newly discovered and synthesized CNIs in recent decades,including the CsA and FK506 derivatives,direct inhibitors of CaN,as well as the inhibitors that specifically interfere with CaN-NFATc interaction,were summarized.

Calcineurin inhibitors,such as cyclosporin A and tacroli mus,are widely-used i mmuno-suppressive drugs clinically.However,renal toxicity,hyperglycae mia and other side-effects can occur over long-term use.Isolation of novel calcineurin inhibitors fro m medicinal plants in recent years has pro-vided a new approach to the development of new immunosuppressive drugs with high efficiency and low toxicity.Recnt studies have shown that medicinal plant extracts, such as isogarcinol, quercetin, kae mpferol,phenylethanoid glycosides,ere mophilane sesquiterpenes A and B,pisiferdiol,as well as extracts fro m Smilax china L and Jasminum humile L,have obvious inhibitory effect on calcineurin.

Gelastic epilepsy is a special refractory epilepsy accompany with ictal laughing and/or crying which can be divided into cortical induced gelastic epilepsy and hypothalamic hamartomas induced gelastic epilepsy according to their epileptogenic focus.Currently, domestic scholars had lack of systematic understanding of the mechanism and clinical treatment involved in gelastic epilepsy.Recently, foreign scholars had achieved great progress in the research of gelastic epilepsy which included the ictal laughing mechanism in gelastic epilepsy, the primary molecular mechanism in hypothalamic hamartomas induced gelastic epilepsy, the secondary epileptogenesis mechanism in hypothalamic hamartomas induced gelastic epilepsy and the clinical treatment of gelastic epilepsy.Now, the study progress of pathogenesis and clinical treatment of gelastic epilepsy were reviewed.

Objective To investigate the value of dual-energy virtual unenhanced and dual-energy iodine value distribution diagram type of kidney cancer.Methods A retrospective analysis of 35 cases of renal cell carcinoma dual-energy CT scan data,compared to kidney pathology data,analyze the image quality and radiation dose dual-energy virtual unenhanced and dual energy distribution of iodine in clear cell carcinoma and non-clear cell carcinoma the differences that exist.Results Unenhanced and virtual unenhanced image quality was quite,CT value (routine unenhanced renal parenchyma 31.90±4.10 HU,abdominal aortic 45.60±6.30 HU,psoas 50.00±6.6 HU3,kidney 1.410±17.06 HU; virtual unenhanced renal parenchyma abdominal aortic 33.20±5.50 HU,48.30±8.00 HU,52.40±10.63 HU psoas kidney 0.87±17.48 HU),signal to noise ratio (routine unenhanced renal abdominal aorta 3.22±1.49,5.13±2.57,4.56±2.12 psoas kidney 3.24±2.27 virtual unenhanced renal abdominal aorta 2.73±1.08,3.79±1.64,3.23±1.35 psoas kidney 2.18± 1.57) had not significantly different (P ＞ 0.05).Clear cell carcinoma of the skin medullart junction of iodinedistribution of images Iodine (2.75±1.05) mg/ml was higher than non-clear cell carcinoma (1.25±0.72) mg/ml,the difference was statistically significant (t =7.048,P ＜ 0.05).Conclusions CT examination in patients with renal cell carcinoma virtual unenhanced image quality is similar with routine unenhanced image quality,it reduces radiation dose.The distribution of iodine can provide more diagnostic information that can help us be more intuitive and accurate judgments of the blood supply and kidney cancer subtypes.

Objective: To investigate the effect of insulin-like growth factor-Ⅰon osteocalcin secretion in periodontal ligament cells. Methods: Human periodontal ligament cells were cultured by tissue explant in vitro, and the concentration of osteocalcin were determined with radio-immunological method. Results: Under the condition of L-ascorbic acid and β-glycerophosphate in culture medium, human periodontal ligament cells secreted osteocalcin time-dependently and peaked at the third week; IGF-Ⅰ3.125 ng/ml，6.250 ng/ml, 12.500 ng/ml, 25.000 ng/ml could promote the secretion of osteocalcin dose dependently. Conclusion: IGF-Ⅰ can increase the secretion of osteocalcin in human periodontal ligament cells.