Objective To investigate the clinical efficacy of low molecular weight heparin combined with psychological intervention in the prevention of deep venous thrombosis (DVT) in patients with varicose great saphenous vein. Methods Two patients underwent surgical varicosis of great saphenous vein saphenous vein ligation and stripping surgery group, with low molecular weight heparin to prevent deep venous thrombosis, the study group with low molecular weight heparin combined with psychological intervention, prevention and control of postoperative deep venous thrombosis, the incidence of records of two groups of patients with postoperative lower extremity deep vein thrombosis. Results The incidence of deep vein thrombosis (2.04％) in the study group was significantly lower than that in the control group (14.29％) (P<0.05), suggesting that the study group had better effect on prevention of deep vein thrombosis after operation. Conclusion The combination of psychological intervention and low molecular weight heparin can achieve more ideal prevention effect of deep vein thrombosis after operation of great saphenous varicose vein, which is beneficial to protect the quality of life and life safety of patients.

Objective The experiment was designed to evaluate whether the tendon healing inside the bone tunnel improved when the periosteal graft was wrapped around the tendon. Methods Sixty normal and healthy New Zealand white rabbits were used in the experiment. These rabbits were randomly divided into three groups. Each group included 20 rabbits. Group Ⅰ, periosteal graft was wrapped around the tendon with the cambium layer facing toward the bone; Group Ⅱ, periosteal graft was wrapped around the tendon with the fibrous layer facing toward the bone; Group Ⅲ, as control group, no periosteal graft was used with the tendon. In control group, the rabbit flexor hallucis longous tendon with calcaneus was designed as tendon-bone model. At 1, 2, 3, 4, 6 weeks after the operation, the specimens in three groups were got respectively and the structural integrity of the tendon bone interface were observed using optical microscope. The histological changes and the biomechanical parameters at varies interval were recorded. Results Three weeks after operation, there was significant osteochondral ossification of the periosteal cambium layer in the group of the cambium layer facing toward the bone, but no new bone appeared in the other two groups. Four weeks after operation, the newborn trabecular in the group of the cambium layer facing toward the bone was more than the other two groups. Six weeks after operation, the amount of the newborn trabecular and the tight interdigitation between the tendon graft and the newly formed bone in the group of the cambium layer facing toward the bone were superior to the group of the fibrous layer toward the bone and the control group. Biomechanical testing, according to a one-factor ANOVA and Student-Newman-Keuls multiple range test, there was significant difference in statistics between the group of the cambium layer facing toward the bone and the other two groups (P0.05). Conclusion Periosteal graft was wrapped around the tendon with the cambium layer facing toward the bone, may shorten the time of osteochondral ossification of the periostum and improve the tendon healing in the bone tunnel.

The Coat protein and Maturase gene of E.coli bacteriophage MS2 was amplified by PCR,then the gene was cloned into pET32a to construct the intermediate vector pET32aCP.The conservative sequence of FMDV internal ribosome entry site(IRES) was cloned into the downstream of pET32aCP bacteriophage gene to construct the prokaryotic expression vector pCPES.The recombinant plasmid pCPES transformed into E.coli strain BL21(DE3) was induced to express with 1mmol/L IPTG.The expression products were purified by sucrose density gradient centrifugation.The expression products observed by TEM were circular viruslike particles,and the diameter of these particles was about 26nm.The stability of viruslike particles was detected,and the viruslike particles was identified by RTPCR.The results showed that the viruslike particles contain the FMDV IRES RNA and have good stability.The viruslike particles have great prospect as the standard and quality control in the area of RNA virus detection.

A new enhancement method is proposed based on the characteristics of fundus images in this paper. Firstly, top-hat transform is utilized to weaken the background. Secondly, contrast limited adaptive histogram equalization (CLAHE) is performed to improve the uneven illumination. Finally, two-dimensional matched filters are designed to further enhance the contrast between blood vessels and background. The algorithm was tested in DIARETDB0 databases and showed good applicability for both normal and pathological fundus images. A new no-reference image quality assessment method was used to evaluate the enhancement methods objectively. The results demonstrated that the proposed method could effectively weaken the background, increase contrast, enhance details in the fundus images and improve the image quality greatly.
Algorithms ; Contrast Media ; Fundus Oculi ; Humans ; Image Enhancement

Angiolymphoid Hyperplasia with Eosinophilia ; pathology ; Child, Preschool ; Humans ; Male

Kinematical alignment during total knee arthroplasty is an emerging process, and draws more and more attentions from scholars. Knee joint is close to normal joint after TKA through kinematical alighment, which has good clinical results and functional scores, and not increase failure probility. Thus, it may increase joint stress of patella-femur joint, lead to patellar maltracking and increase abrasion. The paper summarized defination and basical principle, operative method, clinical outcomes and deficiency of kinematical alignment during total knee arthroplasty, in order to choose a better way for kinematical alignment during total knee arthroplasty.
Arthroplasty, Replacement, Knee ; methods ; Biomechanical Phenomena ; Humans

Objective To analyze the influencing factors of deep vein thrombosis (DVT ) in the patients with abdominal trau‐ma .Methods A total of 200 cases of patients with abdominal trauma in our hospital from June 2014 to June 2015 were selected and performed the color Doppler ultrasonography for determining whether DVT occurring .The clinical data were retrospectively ana‐lyzed .The influencing factors of DVT occurrence in the patients with abdominal trauma were analyzed .Results Among 200 cases of abdominal trauma ,56 cases appeared the symptoms and signs of muscular pressing pain ,swelling pain ,positive Homans sign ,su‐perficial varicose and skin temperature decrease within 7 d after abdominal trauma ,60 cases were diagnosed as DVT by color Doppler ultrasonography .The multivariate Logistic regression analysis results showed that advanced age ,high cholesterol level ,high D‐dimer level ,high blood urea nitrogen level ,complicating hypertension ,complicating diabetes ,complicating hyperlipidemia ,surgical history at preoperative 1 month ,lower abdominal trauma ,high score of trauma ,bedridden time more than 3 d and infection were the independent risk factors of DVT occurrence in abdominal trauma patients (P<0 .05) .Conclusion Clinic should perform the color Doppler ultrasound screening in the abdominal trauma patients with risk factors of DVT ,which is conducive to early discovery and early treatment of DVT .

Objective:To investigate the protective effects of Cordyceps sinensis from Tibet and Qinghai on acute renal injury in-duced by gentamicin sulphate ( GM) . Methods:The rat model of acute renal injury induced by GM was established. The biochemical indicators including blood urea nitrogen ( BUN) and serum creatinine ( Scr) in serum and NAG enzyme and urine total protein in urine were detected. HE staining was used to observe the pathologic changes in kidney. Results:Compared with those in the model group, the levels of BUN and Scr in serum and NAG enzyme and urine total protein in urine were significantly reduced in the Cordyceps sinen-sis groups, and kidney cells necrosis was improved in the Cordyceps sinensis groups at low, medium and high dose (P<0. 05), how-ever, the difference between the Cordyceps sinensis groups with different habitats were not significant (P >0.05). Conclusion:Cordyceps sinensis from Qinghai and Tibet both have protective effect on acute kidney injury induced by GM in rats, and the difference between them is not remarkable.