Silk fiber,as a kind of natural polymer,has been used as surgical sutures in clinic for years.Silk fiber is composed of a filament core protein,termed fibroin and a glue-like coating called sericin proteins.Due to its unique mechanical properties,good biocompatibility and slow degradability,silk fiber has been put in variety of applications as a new kind of biomedical scaffolds in recent years.With the development of the processing technique,silk fiber can be processed through the new versatile processing method to form various forms of scaffolds and its surface could be modified for different purposes.Further more,it could be tailored through genetic recombination to form the silk fibroin-like polymers which has a promising potential in medical applications.

AIM:To investigate the effect and safety of modified small incision cataract surgery in patients with soft core cataract.METHODS: Totally 80 cases (109 eyes) of soft cataract patients who underwent surgical treatment from January 2015 to May 2016 in ophthalmology center of our hospital, using random number table method were divided into improved group (improved manipulation of small incision cataract surgery), traditional group (traditional approach to small incision cataract surgery), 40 cases in each group.Comparison of the two groups of treatment, the incidence of complications were taken.RESULTS: There were no significant differences on uncorrected visual acuity between the two groups before and at 1d, 1wk and 1mo after operations (P>0.05).The uncorrected visual acuity of the two groups improved significantly at 1d, 1wk and 1mo after operations compared with those before operations (P<0.05).There were no significant differences on intraocular pressure(IOP) between the two groups before and at 1d, 1wk and 1mo after operations (P>0.05).The IOP of the two groups increased significantly at 1d, 1wk and 1mo after operations compared with those before operations (P<0.05).The complication rate was 9% (5/54) in the modified group, significantly lower than that in the conventional group 25% (14/55) (P<0.05).CONCLUSION: Improved small incision cataract surgery for soft cataract patients was with reliable results, less complications.

Continuous Positive Airway Pressure ; Facial Bones ; abnormalities ; Humans ; Infant ; Larynx ; pathology ; Oxygen Inhalation Therapy ; Pharynx ; pathology ; Polysomnography ; Respiration ; Risk Factors ; Sleep Apnea Syndromes ; diagnosis ; etiology ; therapy ; Sleep Apnea, Obstructive ; diagnosis ; etiology ; therapy

Autoantibodies ; blood ; immunology ; Child ; Diagnosis, Differential ; Humans ; Radiography ; Radionuclide Imaging ; Thyroid Diseases ; blood ; diagnosis ; diagnostic imaging ; Thyroid Function Tests ; methods ; Thyroid Gland ; diagnostic imaging ; immunology ; Thyroid Hormones ; blood

This paper reported the history of avian flu outbreaks in China from 1996 to 2006, directed the characteristics of avian influenza outbreaks in recent years. China is one of the biggest poultry producers in the world and many migratory birds go through China, China faces high risk of pandemic bird flu. The continuing occurrence of sporadic human cases indicates that the virus is continuing to circulate in birds in some parts of the country. In the fighting again avian flu virus, China has developed some possible practice on precautionary and control measure. China enhances international cooperation and scientific involvement in the prevention and control of the avian flu. The State Council and Ministry of Agriculture issued the laws and regulations on avian flu. Wild birds may have played a role in getting domestic fowl and human beings infected with bird flu. Poultry manure is considered to be another key source of the spread routes of H5N1 virus, but the bio - security processing in free range poultry farming and waste products is very poor disposition in China. Epidemic control at grassroots level still needs to be strengthened.

Body Height ; Child ; Female ; Ghrelin ; pharmacology ; Growth Disorders ; physiopathology ; Growth Hormone-Releasing Hormone ; pharmacology ; Human Growth Hormone ; blood ; physiology ; urine ; Humans ; Insulin-Like Growth Factor Binding Protein 3 ; blood ; Insulin-Like Growth Factor I ; physiology ; Male

Objective To study the different curative effect between r-tPA application and urokinase in the interventional therapy for acute and severe pulmonary embolism.Methods Analyzed the clinical date of 22 cases acute and severe pulmonary embolism patients,and classified them into two groups according to the application of r-tPA and urokinase to compare the changes of their blood pressure,heart rate,arterial partial pressure of oxygen,hemachrome and pulmonary arterial pressure before and after therapy,meanwhile,record the thrombolysis time that the two groups took.Results The thrombolysis effect time adopting urokinase was remarkably longer than that thrombolysis adopting r-tPA(P<0.05); The blood pressure,heart rate,arterial partial pressure of oxygen of the two groups gained remarkable improvement after therapy(P<0.05).The pulmonary arterial pressure of the urokinase group dropped obviously after operation(P<0.05),while the r-tPA group dropped not so significantly after operation.The hemachrome of the two groups did not dropped significantly after operation.Conclusion The r-tPA and urokinase are both effective to interventional therapy for acute and severe pulmonary embolism,while r-tPA can clearly shorten the time in thrombolysis and could reduce any bleeding risk.

Beckwith-Wiedemann Syndrome ; Female ; Humans ; Infant, Newborn

Objective To find a method for denoising of ECG signals during spaceflight.Method According to noise character of ECG during spaceflight,a new denoising method that combines wavelet transform and shape filter was put forward.Result By practical application and simulation test,it was proved that this method could eliminate efficiently noise from ECG during spaceflight.Conclusion The method that combines wavelet transform and shape filter can be used for ECG denoising during spaceflight.

Aim To study the effect and investigate the underlying mechanism of astragaloside Ⅳ on contraction and relaxation in isolated rat aortic rings.Methods The relaxation effect of astragaloside Ⅳ(1～100 mg?L~(-1))on phenylephrine-preconstricted aorta ring was recorded.The effect of astragaloside Ⅳ on the contraction induced by cumulative phenylephrine,KCl or CaCl_2,was recorded respectively.Results Astragaloside Ⅳ dilated aortic vessels in a dose-dependent manner,which was partly inhibited by preincubation with non-selective nitric oxide synthase inhibitor,guanylyl cyclase inhibitor and cyclooxygenases inhibitor indomethacin.Astragaloside IV could also antagonize phenylephrine-,KCl-and CaCl_2-induced vessel contraction.Conclusion Astragaloside IV dilated aortic vessels partially though endothelium-dependent NO pathway and inhibited vessel contraction via interfering Ca~(2+) influx.