To detect and phylogeneticaly analyze arenavirus carried by wild rodents in Ningbo ,China ,two pairs of degener‐ate‐primers were designed to amplify the S and L gene of arenavirus ,and then RT‐PCR was applied to detect arenavirus carried by rodents which captured from Ningbo port area .All 73 rodents samples were detected ,of which 12 Rattus norvegicus were positive ,an arenavirus virus strain named DX1401 were separated .The S gene amplified products of DX1401 was about 413 bp ,and the L gene was 1 204 bp .The phylogenetic analysis of S segments showed that DX1401 strain was in one branch of phylogenetic tree with Mobala virus strain ACAR3080 .The genetic distance to Mobala virus strain ACAR3080 was the closest , with the value of 0 .467 ;the phylogenetic analysis of L segments showed that DX1401 strain were in one group of phylogenetic tree with Lassa virus strain Josiah ,NL ,Z148 ,Bamba‐R114 ,Soromba‐R ,Nig08‐A37 ,Nig08‐A47 ,Mobala virus strain ACAR3080 ,Morogoro virus strain 13017/2004 ,Mopeia virus strain Mozambique ,and AN 21366‐BNI .The genetic distance to Mobala virus strain ACAR3080 was the closest ,with the value of 6 .953 .In conclusion ,the study confirmed the existence of arenavirus popular in wild rodents in Ningbo ,China .

Sleep-disorderedbreathingarecloselyassociatedwithischemicstroke.Sleep-disordered breathing includes obstructive sleep apnea and central sleep apnea. Studies have show n that obstructive sleep apnea is an independent risk factor for stroke, w hile stroke can also increase the incidence of sleep-disordered breathing. This article review s the latest research progress of sleep-disordered breathing and stroke.

Objective: To analyze the correlation between circumcision and incidence and clearance of male genital HPV infection. Methods: From May to July 2014, 18-55 year old men who had sexual behavior history were recruited from the general population in Liuzhou, Guangxi to set up a cohort. Totally, 113 circumcised and 560 uncircumcised men were enrolled and interviewed using a questionnaire (including information on demographic characteristics and sexual behaviors), then they were followed-up with 6-month interval for 2 times. On each visit, specimens of male external genitalia were collected and genotyped for HPV DNA. The differences of incidence and clearance of genital HPV infections between circumcised and uncircumcised men were analyzed by Log-rank test. Cox regression was used to analyze the relationship between circumcision and incidence and clearance of HPV infection. Results: The median age (P₂₅, P₇₅) of circumcised and uncircumcised men were 28 (24, 35) and 32 (24, 31), respectively. The incidences of any HPV infections were 9.1 (95%CI: 2.4-15.7) and 8.4 (95% CI: 5.6-11.2) per 1 000 person-months (χ²=0.10, P=0.758), respectively. The clearance of circumcised men [136.3 (95%CI: 70.0-202.7) per 1 000 person-months] was higher than that in uncircumcised men [89.6 (95%CI: 65.9-113.3) per 1 000 person-months] (χ²=8.19, P=0.004). In multivariate COX regression analysis, compared with uncircumcised men, circumcised men had higher possibility to clear any HPV infections (HR: 2.41, 95%CI: 1.30-4.46). Compared with men having one sexual partner, people having more than 4 sexual partners had lower possibility to clear any HPV infections (HR: 0.49, 95%CI: 0.25-0.96). Compared with 18-25 years old men, men aged 26-35 years old had higher possibility to clear high-risk HPV infections (HR: 2.14, 95%CI: 1.08-4.23). Conclusion Circumcised and uncircumcised men had similar incidence of genital HPV infection, whereas, men conducted circumcision and having fewer sexual partners could increase the clearance of genital HPV infections.

Extranodal NK/T cell lymphoma, nasal type（ENKTL） is a highly aggressive malignant tumor derived from NK cells. This article reports a case of ENKTL invading the larynx and digestive tract. The clinical clinical manifestations include hoarseness and intranasal masses.
Humans ; Lymphoma, Extranodal NK-T-Cell/pathology* ; Nose/pathology* ; Nose Neoplasms/pathology* ; Larynx/pathology* ; Gastrointestinal Tract/pathology*

Laparoscopic surgery based on magnetic anchor technique has great potential for further minimally invasive surgery and good surgical field exposure, in which the internal grasper is the key factor. In this paper, an internal grasper based on magnetic anchor laparoscopic surgery is designed, which consists of three parts:target magnet, connection module and tissue forceps. The magnetic shield shell is used to wrap the magnetic core in the target magnet, which not only can increase the magnetic force in the working area, but also reduce the magnetic interference between the instruments, and the connecting module can flexibly adjust the length of the internal grasper. The special structure of tissue gripper can effectively reduce deputy injury and facilitate the replacement of clamp position. It has many advantages, such as ingenious design, easy processing, simple operation and wide range of application, which greatly increased its clinical application value.
Equipment Design ; Laparoscopy ; Magnetics ; Magnets ; Surgical Instruments