A novel H17N10 subtype of the influenza A viruses was found in bats in 2012. Protein sequence and structural analyses revealed that the HA17 and NA10 proteins of this strain are different from corresponding ones in known influenza A subtype viruses. Both HA17 and NA10 proteins cannot bind to sialic acid,which indicates that they may have novel functions. This article briefly describes the state of current research into the H17N10 subtype of bat influenza A virus.
Animals ; Chiroptera ; virology ; Influenza A virus ; classification ; genetics ; isolation & purification ; metabolism ; Orthomyxoviridae Infections ; veterinary ; virology ; Viral Proteins ; genetics ; metabolism

Human papillomavirus (HPV) is one of the most common infection of the virus in the reproductive tract,a growing number of studies found that HPV infection is closely related to female infertility.This paper mainly introduces the structure characteristics of HPV,the correlation of reproductive tract infection of HPV and infertility,the related factors of infertility by reproductive tract infection of HPV,the influence of early pregnancy and adverse pregnancy outcomes,the relationship with assisted reproductive technology,etc.

Objective To study the formulation and preparation of Qinglan Jingao tabales.Methods The orthogonal design was taken for the optimization,the contents were selected by granule,rigidity,crack and disintegration.Results The optimum dropping condition was as follow:the rate of Qinglan extraction to starch and dextrin was 25∶4∶1(kg),the added amount of 95%alcohol was 0.25 times(kg),mix 8 minutes by the wet granule compression technique.Conclusion The optimum extracting procedure is scientific,reasonable and stable.

Influenza poses a great threat to life and health in populations worldwide. Studies regarding the protein components of influenza viruses will facilitate the research and development of vaccines and diag nostic reagents. The influenza virus contains both structural and non-structural proteins. From the outset, it has been accepted that an influenza A virus possesses eight gene segments that encode eight corresponding viral proteins, respectively. Research has demonstrated that the M gene encodes the M2 ion channe! protein and the NS gene encodes the non-structural protein, NS2. In recent years, several novel viral proteins have been identified from influenza A viruses. This article will briefly describe the state of current research into PA-related proteins of influenza A viruses.
Animals ; Humans ; Influenza A virus ; enzymology ; genetics ; Influenza, Human ; virology ; RNA Replicase ; genetics ; metabolism ; Viral Proteins ; genetics ; metabolism

Background C57BL/6.NOD-Aec1Aec2 mouse is considered to be an idea model for the study of the pathogenesis of Sj(o)gren syndrome,but the cause of dry eye in these mice is unclear.Objective This study was to investigate the histopathological change of the ocular surfaces of C57BL/6.NOD-Aec1Aec2 mice,and to determine whether dry eye is developed spontaneously in these mice.Methods Forty-five clean C57BL/6.NOD-Aec1 Aec2 mice were used as the experiment group and forty-five C57BL/6J mice(both male and female)were used as the control group in this study.Detection of fasting blood-glucose,Schirmer' s test Ⅰ (S Ⅰ t),lissamine green staining and scoring of the corneal and conjunctival epithelium in the mice were performed at the age of 4,8,12,16 and 20weeks.Five mice from each group were sacrificed and their corneas were obtained to measure the central corneal epithelium thickness and to count the number of conjunctival goblet cells.In addition,lymphocyte infiltration in the lacrimal gland of the mice was examined with hematoxylin-eosin staining.The uhrastructure of the corneal epithelial cells and microvilli were assessed by scanning electron microscopy.The use and care of the mice were approved by the Experimental Animal Care Committee of the Third Military Medical University.Results No sign of dry eye was seen in both the 4-week-old C57BL/6.NOD-Aec1Aec2 mice and 4-week-old C57BL/6J mice.The S Ⅰ t values in 8-week-old,12-week-old,16-week-old and 20 week-old mice from the experiment group were (2.7 ±0.9) mm,(2.5 ±0.8) mm,(1.8±0.6) mm and (1.9± 0.1) mm,respectively,showing a significant reduction in comparison with those of the control mice of the same age(all P＜0.01).The amount of lissamine green staining in the C57BL/6.NOD-Aec1Aec2 mice gradually increased with age,showing elevated scores in 12-week-old,16-week-old and 20-week-old mice in the experiment group(all P＜0.01).The central corneal epithelium thicknesses were(20.18±3.75)μm,(17.01 ±5.25) μm,(14.19±5.72) μm and(12.00±3.25) μm in the 8-week-old,12-week-old,16-week-old and 20-week-old C57BL/6.NOD-Aec1Aec2 mice,respectively,which were significantly lower than those of the C57BL/6Jmice of the same age (all P＜0.01).The numbers of conjunctival goblet cells were (8.2±2.4),(6.2±2.1),(6.1 ±2.2) and (4.1 ± 2.0) in the 8-week-old,12-week-old,16-week-old and 20-week-old C57 BL/6.NOD-Aec 1Aec2 mice,respectively,showing a gradual decrease with age and a significant decline in comparison with those of the C57BL/6Jmice of the same age(all P＜0.01).Lymphocyte infiltration in the lacrimal gland and destruction of gland ducts were seen by hematoxylin-eosin staining,and acinar abnormality aggravated with aging.Reduction of corneal epithelial cells and the number of microvilli were distinguished with aging under the scanning electron microscope.The fasting bloodglucose levels of the two groups were both less than 6.0 mmol/L,and no significant difference was found between them at any age(P=0.637,0.610,0.163,0.086,0.938).Conclusions C57BL/6.NOD-Aec1Aec2 mice develop dry eye spontaneously with aging.The course of disease and characteristics of dry eye in C57BL/6.NOD-Aec1Aec2mice is similar to human dry eye.The C57BL/6NOD-Aec1 Aec2 mouse is the perfect model to study the pathogenesis of dry eye.

ObjectiveTo evaluate the clinical application value of a kind of rapid urine microalbumin( mALB )screening test.Methods Six hundred and thirteen samples for urine routine detection from Affiliated Fuxing hospital,Capital Medical University were included from December 2006 to February 2007.mALB of all urine samples was detected with H-800 automated urine analyzer based on a dry chemical qualitative screening test.To validate the screening effect of the dry chemical screening test,all of the positive samples and a part of negative samples were determined by a mALB quantitative test as confirmation by lmmage-800 automated specific protein analyzer.Comparison of mALB quantitative level between screening positive group and negative group was carried out by 2 independent samples rank sum test.Comparison between enumeration data was carried out by Kappa test for consistency.Results One hundred and fourteen positive samples out of 613 were detected by screening method ( 18.6％ ).Out of the 114 positive samples by screening test,seventy-one samples were confirmed positive by quantitative test (mALB ＞ 13.3 mg/L).Out of 76 negative sample by screening test,eight samples were confirmed positive by quantitative test.The mALB level of the screening positive group and negative group was 17.70 ( 9.19 -32.90) mg/L and 4.55(2.38-7.60) mg/L,respectively,and the mALB level of the screening positive group was much higher than that of the negative group ( Z =- 8.644,P ＜ 0.01 ).According to the quantitative test,the sensitivity and specificity of the mALB screening method were 89.9％ (71/79) and 61.3％ (68/111 ),respectively.ConclusionsThe mALB rapid screening test in the research has a certain screening value.But the test method should be further perfected to improve its sensitivity for its certain omission rate.

Objective To probe the reasons of failure of caged cervical intervertebral fusion and define the indications, operative techniques and short term results of the revision surgery. Methods Twenty-seven cases of caged cervical fusion were revised. The indication for fusion was cervical disc herniation in four cases and cervical spondylotic mylopathy in 23 cases. Of the 27 cases, there were 8 single levels, 15 double levels, 4 three levels. The intervals from revision to primary fusion were 2-25 months, 10.3 months in average. Patients presented discomfort (22 cases) and local pain of neck and shoulder (9 cases) or paralysis (19 cases) preoperatively. JOA grade was mean 11.6 points before revision. Radiographic examination showed the mean lordosis loss was 7.1 mm, the mean interbody height loss was 3.9 mm. 24 patients presented kyphosis. Occluded neighboring cages were found in multilevel cases. Nonunion was founded in 6 cases, unstable in 9 cases, compression still existed in 19 cases. Removal of cages and then decompression, bone grafting and anterior plating fixation were performed in 23 cases (29 cages). 16 patients underwent further posterior fixation. Posterior revisions underwent in another 4 cases (9 cages), including laminectomy and reshaping the lordosis and lateral mass screw plating fixation. Results All the cases were followed-up from 4 to 26 months, 11.7 months in average. The local symptoms released in 81% patients. Nerural deficit symptoms improved in 58% patients. Mean JOA grade was 14.2 points after revision. In 23 cases of anterior approach revisions, 17 cases obtained bone healing within 3 months, while 6 cases got delayed union. The kyphosis was corrected, and the intervertebral height increased 3 mm in average. There were no nerural impaction or failed internal fixation. Conclusion Deficient decompression, sinking of the cage into the cancellous bone of the vertebral body and subsequent kyphosis and bone graft nonunion consist of the main causes for revision surgery. The indications of revision are aggressive neurologic symptom, unstable or deformity of the cervical spine. Cage removal, completely decompression, bone grafting and secure fixation are major steps of revision procedure. In case of more than 3 fusion levels, further posterior fixation is advised.

BACKGROUND: Conservative treatment receives poor results in treating humeral intercondylar fractures,due to the over-long time fixation,and the recovery of joint function would be restricted.Early functional exercises should be based on stable internal fixation.OBJECTIVE: To explore the effectiveness of bone plate internal fixation in treating humeral intercondylar fractures under AO principle.METHODS: Totally 37 cases with humeral intercondylar fractures at the Department of Orthopaedics,Laibin People's Hospital from June 2000 to November 2005 were collected,under AO/ASIF classification,cases were assigned into three groups: type C1consisted of 11 cases,C2 consisted of 21 cases and C3 comprised 5 cases.All the cases were treated by olecranon osteotomy medial approach open reduction and then treated with dual anatomical plate internal fixation.Flexion and extension activities were done at 1 day after operation.Physical therapy was performed at 1 day after removing drainage.According to the images and clinical follow-up,slightly resistance exercise could be done at 4 weeks after operation,and gradually increased the load after8-12 weeks.RESULTS AND CONCLUSIONS: A total of 36 patients were included in the follow-up with 13-26 months,mean 19.5 months.All the bone fractures were recovered.Earlier operative reduction and exercise function would got better elbow joint recovery.All results demonstrated that dual anatomical plate treatment under AO principle provides firm internal fixation for patients with humeral intercondylar fractures,which is good for early exercise and functional recovery.

Cell cycle-related kinase (CCRK) as a novel CDK-activating kinase plays a significant role in cell cycle regulation.Related studies confirm that CCRK is overexpressed in various tumors,and is associated with poor prognosis of the patients,which indicates that CCRK takes part in the generation and development of the tumor.