Objective To assess three-dimensional color Doppler energy (3D-CDE) in the diagnosis of liver tumors.Methods Vascular pattern of 2D- and 3D-CDE were used to analyze 106 tumors of 96 patients,and their sensitivity and specify were calculated respectively.Three-dimensional volumetric measurement was used to calculate the volume,vessel counts of tumor,as well as the ratio of vessel counts and volume,whereas vascular index (VI) of both benign and malignant lesions were assessed.Results ①Using the vascular pattern of IE as diagnosis standard of liver malignant,the sensitivity and specificity of 2D-CDE and 3D-CDE were 21.33%,100% and 81.33%,100%,respectively) using the vascular pattern of II and Ⅲ,the sensitivity and specificity were 73.33%,67.74% and 100%,45.16%,respectively.②Mean VI was 0.38 counts/cm~3 of malignant tumors and 0.18 counts/cm~3 of 31 benign tumors (P<0.05),The sensitivity and specificity in diagnosing malignant tumors of liver was 78.67% and 87.10%,respectively with VI>0.30 counts/cm~3.Conclusion The vascular pattern of 3D-CDE HI and VI>0.30 counts/cm~3 may be taken as parameters for the diagnosis of malignant liver tumor.

Objective To investigate the status of Helicobacter pylori and “Helicobacter macacae” infection in rhesus and cynomolgus monkeys in China.Methods With the use of 16S rRNA specific primers for Helicobacter spp and Helicobacter pylori ( HP ) from published literatures, and new 16S rRNA specific primers designed for “Helicobacter macacae” ( HM ) , we investigated the infection status of these two Helicobacter spps in both of 45 rhesus and 90 cynomolgus monkeys by qPCR or conventional PCR on stool samples.Results All three primer sets for 16S rRNA exhibited excellently sensitivity and specificity.Both the infection rates of HP and HM were 100% among 45 young adult rhesus monkeys.The infection rate of HP and HM in 90 young adult cynomolgus monkeys were 100% and 97.8%, respectively.Conclusions Helicobacter pylori and “Helicobacter macacae” are present in almost every artificially bred adult rhesus and cynomolgus individuals which may adversely affect the health of laboratory monkeys and the accuracy of related animal experiments.

Objective To detect the expression levels of urokinase-type plasminogen activator (uPA), matrix metalloproteinase-3 (MMP-3),MMP-9,MMP-13 and MMP-14 in the patients with osteoarthritis(OA)before and after arthroscopic debridement,and to explore the influence of arthroscopic debridement in the expressions of uPA, MMP-3,MMP-9,MMP-13, and MMP-14.Methods 420 cases of synovial fluid from knee OA patients undergoing arthroscopic debridement were obtained before operation. After six months follow-up, 350 cases of synovial fluid samples were obtained and according to inclusion and exclusion criteria, 228 synovial fluid were selected to analyze.The expression levels of uPA,MMP-3,MMP-9,MMP-13,and MMP-14 were measured by ELISA assay.Pain intensity of these patients before operation and six months after operation were recorded using the Visual Analogue Scale/Score(VAS).The differences of the expression levels of uPA,MMP-3,MMP-9, MMP-13,and MMP-14 between before operation and after operation were compared.The relationship between the expression levels of uPA, and MMP-3, MMP-9, MMP-13, MMP-14 and VAS was analyzed with Spearman analysis.Results All the patients were followed up for 36.5 months. Compared with before operation, the expression levels of uPA and MMP-3 in the synovial fluid of the patients after arthroscopic debridement were significantly decreased(P<0.01),the expression levels of MMP-9 and MMP-13 were also decreased (P<0.05), but the MMP-14 expression level showed no significant change.The expression levels of uPA,MMP-3,MMP-9, MMP-13,MMP-14 were positively associated with VAS before arthroscopic debridement (r=0.361,r=0.417, r=0.136,r=0.514,r=0.156,P<0.05 );uPA and MMP-3 were positively correlated with VAS after arthroscopic debridement(r=0.981,r=0.831,P<0.01),as well as the expression level of MMP-13 and VAS, but there were no significant differences between the expression levels of MMP-9, MMP-14 and VAS. Conclusion The decreased levels of uPA,MMP-3 and MMP-13 in synovial fluid may contribute to the pain-relief effects of arthroscopic debridement.

Information resources of health education , disease knowledge and drug knowledge extracted by seconda-ry development fromhospital electronic librarywere disseminated on the Website , WIFI and WeChat platforms of People's Armed Police for the self-learning of users according to the demand of health dissemination and education in hospitals and health education at grass-roots level, in order to improve the efficiency and service of health edu-cation, solve the lack of resources and talents for health education, and to enhance the health service support ability for People's Armed Police.

Objective To compare the effects of sodium hyaluronate (SH) and celecoxib (CO) administration on the treatment of knee osteoarthritis (OA) and to investigate their influences on levels of uPA and MMP-3 in synovial fluid. Methods One hundred and thirty-six knee osteoarthritis (OA) patients from January 2010 to October 2011 were randomly enrolled into two groups: the SH group and the CO group. In the SH group, patients were injected with 2 mL sodium hyaluronate intra articulation once a week for 5 weeks. In the CO group , patients were given oral administration of celecoxib daily at a dosage of 200 mg for 5 weeks. Before and at 1 ,6 months after treatment, Lequesne′s index and VAS-pain were detected to assess the clinical results of these two drugs. The levels of uPA and MMP-3 in synovial fluid were measured by using ELISA assay. Results All patients were followed up for 6 months to 12 months. The Lequesne′s index and VAS-pain score were lowered at 1 and 6 moths after treatment in both the SH group and the CO group(P<0.05). In the CO group, however, higher Lequesne′s index and VAS-pain score were obtained at 6 months compare to that obtained at 1 month after treatment (P<0.05). In contrast, no significant difference of Lequesne′s index and VAS-pain score were shown at 6 months and at 1 month after treatment in the SH group (P>0.05). Dramatic reduction of the levels of uPA and MMP-3 in synovial fluid were observed in the SH group after treatment(P<0.01), while marginal changes were found in the CO group(P>0.05). Conclusion The redueced levels of uPA and MMP-3 in synovial fluid after treatment of sodium hyaluronate may contribute to its longer-lasting effect than that of celecoxib. Therefore , the combination of sodium hyaluronate with celecoxib may lead to better therapeutic effect on OA patients.

Objective:To compare the clinical effect of combined anterior and posterior approach and posterior median approach to treat O'Driscoll type III b fracture of ulnar coronoid process.Methods:A retrospective case control study was made on 67 patients with O'Driscoll type III b fracture of ulnar coronoid process treated in Honghui Hospital, Xi'an Jiaotong University from January 2015 to January 2019, including 35 males and 32 females, aged from 21 to 61 years [(38.0±9.4)years]. Among them, 31 patients were treated with combined anterior and posterior approach for reduction and internal fixation (combined approach group), and 36 patients with median posterior elbow approach group for reduction and internal fixation (posterior elbow approach group). The operation time, amount of intraoperative blood loss and fracture healing time were compared between groups. The visual analogue score (VAS), elbow joint range of motion and Mayo elbow performance score (MEPS) were assessed for pain and function evaluation at postoperative 1, 3, 6 months and at the last follow-up. The occurrence of complications were observed as well.Results:All patients were followed up for 12 to 28 months [(20.1±4.2)months]. There was no significant difference in operation time and VAS between the two groups ( P>0.05). The intraoperative blood loss [(133.6±20.3)ml] and fracture healing time [(12.3±1.7)months] in combined approach group were less or shorter than those in posterior elbow approach group [(144.4±22.1)ml, (13.2±2.0)months] ( P<0.05). The range of flexion and extension of elbow joint in combined approach group [(88.7±10.8)°, (111.1±13.9)°, (121.3±14.1)°, (127.1±13.3)°] was higher than that in posterior elbow approach group [(74.5±11.8)°, (97.6±12.6)°, (111.3±13.0)°, (115.2±12.7)°] at postoperative 1, 3, 6 months and at the last follow-up ( P<0.05). The MEPS in combined approach group [(31.7±8.6)points, (55.6±9.3)points, (84.6±10.5)points, (85.0±10.3)points] was higher than that in posterior elbow approach group [(27.2±8.2)points, (50.7±8.7)points, (77.4±11.2)points, (80.1±9.4)points] at postoperative 1, 3, 6 months and last follow-up ( P<0.05). The incidence of complications in combined approach group [10%(3/31)] was lower than that in posterior elbow approach group [31%(11/36)]( P<0.05). Conclusion:Compared with the simple posterior elbow median approach, the combined anterior and posterior elbow approach for treatment of O'Driscoll type IIIb fracture of ulnar coronoid process has lower intraoperative blood loss, faster fracture healing, lower incidence of complications and better elbow function.

Objective:To explore mechanical stability of Proximal Humeral Internal Locking Plate System (PHILOS) in the treatment of Vancouver B1 femoral periprosthetic fractures by three-dimensional finite element analysis.Methods:A three-dimensional finite element model of the femur was established by digital medical software (Mimics 21.0, 3-matic12.0, Geomagic12.0 and Hypermesh 2017.0) using the CT data of a femur from a volunteer (male, 34 years old, 173 cm in height and 65 kg in weight). After the femoral trochanter was cut in the femoral models, a femoral stem was implanted. PHILOS fixation (PHILOS group) and Cable-Ready GTR fixation (Cable group) were applied respectively. Loads of 700 N, 1,400 N and 2,100 N were applied to the 2 groups of finite element models. Distributions of Von Mises stress and deformation were investigated in the finite element models of 2 internal fixations; the mechanical stability was compared between the 2 groups of models.Results:The maximum deformation occurred on the femoral ball head in the 2 groups of models. At the load of 2,100 N, the maximum deformation was 3.77 mm in the PHILOS group, larger than 3.58 mm in the Cable group, and the maximum stress peak value in the PHILOS group was 491.54 MPa, about 49.2% lower than that in the Cable group (733.61 MPa). The peak stress in the PHILOS group was mainly distributed on the 4th and 5th fixation ends at the bone plate while the peak stress in the Cable group was mainly distributed on the second titanium cable under the fracture line.Conclusions:Under various loads, both PHILOS fixation and Cable-Ready GTR fixation can provide sufficient mechanical stability. As the peak stress of PHILOS fixation is much lower than that of Cable-Ready GTR fixation, PHILOS can be used as an effective fixation method for Vancouver B1 femoral periprosthetic fractures.

The aim of this study was to construct the complete genome of Marek's disease virus serotype 814 strain as an infectious bacterial artificial chromosome (BAC). Using self-designed selection marker Eco-gpt (1.3 kb) and BAC vector pBeloBAC11 (7.5 kb), we constructed the transfer plasmid pUAB-gpt-BAC11. The plasmid pUAB-gpt-BAC11 and MDV total-DNA were cotransfected into secondary CEFs; we put the virus-containing cells in selection medium for eight rounds and obtained purified recombinant viruses. Recombinant viral genomes were extracted and electroporated into E. coli, BAC clones were identified by restriction enzyme digestion and PCR analysis. Finally, we obtained 38 BAC clones, DNA from various MDV-1 BACs was transfected into CEFs, and recombinant virus was reconstituted by transfection of MDV-BAC2 DNA. We successfully cloned the complete genome of MDV-1814 strain as an infectious bacterial artificial chromosome. With these cloned genomes, a revolutionary MDV-DNA engineering platform utilizing RED/ET recombination system was constructed successfully, which can help the understanding of MDV gene functions and promote the using of MDV as a vector for expressing foreign genes. In addition, it opens the possibility to generate novel MDV-1 vaccines based on the BACs.
Animals ; Chickens ; immunology ; virology ; Chromosomes, Artificial, Bacterial ; genetics ; Cloning, Molecular ; DNA, Recombinant ; genetics ; DNA, Viral ; genetics ; Fibroblasts ; metabolism ; Genetic Engineering ; methods ; Mardivirus ; classification ; genetics ; physiology ; Serotyping ; Transfection ; Viral Proteins ; genetics ; physiology ; Virus Replication

To explore the proportion for facial aesthetics that may be recognized by the potential group who will do plastic surgery in the future. 
 Methods: We measured the celebrity photos, who were born before 1980 recognizable by the people over 40 years old or by high school students. The proportions for facial aesthetics recognizable by these two generations were obtained and compared. 
 Results: Compared the new generation of male celebrities with the older generation of male celebrities, the difference was statistically significant by the independent samples t test (t=-2.502, P<0.05), while other ratios were not statistically significant (P>0.05). Compared the new generation of female celebrities with the older generation of female celebrities, the difference was statistically significant by the independent samples t test. The ratios between inter-canthic diameter and eyeslit breadth, mouth breadth and eyeslit breadth, stirnhohe and 1/3 of the physiognomic facial height, nasal height and 1/3 of the physiognomic facial height were significantly different (P<0.05), while other ratios were not significantly different (P>0.05).
 Conclusion: The young new generation loves more larger eyeslit breadth for men, while a larger eyeslit breadth, smaller bizygomatic breadth and sharper chin for women.
Adolescent ; Adult ; Cephalometry ; trends ; Esthetics ; psychology ; Eye ; Face ; Famous Persons ; Female ; Humans ; Male ; Middle Aged ; Mouth ; Nose ; Students ; psychology ; Surgery, Plastic ; trends