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Mediterranean spotted fever (MSF) is an acute febrile, zoonotic disease caused by the bacterium Rickettsia conorii that is transmitted to humans by the brown dog tick, Rhipicephalus sanguineus (1). MSF [...]

We sequenced DNA from spleens of rodents captured in rural areas of Qingdao, East China, during 2013-2015. We found 1 Apodemus agrarius mouse infected with Rickettsia conorii, indicating a natural Mediterranean spotted fever foci exists in East China and that the range of R. conorii could be expanding. [ABSTRACT FROM AUTHOR]

Objective: To evaluate the feasibility of MRI navigation in identifing the safe surgical margin of the maxillofacial malignancy., Methods: The pathology results of the surgical margin identified by the technique of MRI navigation form 20 patients with maxillofacial malignancy were compared with those of 45 patients with maxillofacial malignancy who underwent the routine operation without MRI navigation., Results: There was no difference between the two groups of patients in age, sex, size of tumor, tumor stages, pathologic diagnosis (P > 0.05). The negative rate of the surgical margin of the lesions treated by surgery with the technique of MRI navigation was significantly lower than that of the lesions treated without MRI navigation (P = 0.007) and highly correspondent with the pathology results., Conclusions: MRI navigation was helpful in identifying the safe surgical margin of the maxillofacial malignancy.

Objective: To investigate the clinical efficacy between mobile intraoperative magnetic resonance imaging (iMRI) navigation with a high field strength and routine surgical resection for malignancy of parapharyngeal space., Methods: The surgical efficacy indexes of patients at our hospital during the time range from February 2010 to February 2011 were compared between two groups consisting of 29 or 42 individuals undergoing surgery with the assistance of the technique of iMRI navigation with a high field strength 1.5T or routine operation., Results: No difference existed between two groups in terms of age, gender, maximal diameter of tumors, tumor stages, surgical approach or pathologic diagnosis (P > 0.05). The operative duration of the group by iMRI navigation was more than the group of routine operation ((3.1 ± 0.6) h vs (2.7 ± 0.7) h, P < 0.05). And the hemorrhagic loss ((185 ± 20) ml vs (230 ± 22) ml), the volume of drainage in 72 hours, the positive rate of initial surgical margins, the postoperative hospital stay ((9.1 ± 2.1) d vs (10.3 ± 2.3) d) and the complication incidence rate (3.4% vs 9.5%) were less (all P < 0.05)., Conclusion: The operation by the iMRI navigation offers a much better clinical efficacy than the traditional surgery in the resection of malignancy of parapharyngeal space.

The title compound, C(15)H(15)NO(3), was prepared by stirring benzoyl chloride with 3,5-dimeth-oxy-aniline in dioxane at ambient temperature. The dimeth-oxy-phen-yl-amide segment of the mol-ecule is almost planar, with a C-N-C=O torsion angle of -4.1 (4)°. The two benzene rings are inclined at an angle of 76.66 (13)°. In the crystal, inter-molecular N-H⋯O inter-actions generate centrosymmetric dimers..

Objective: To examine the role of Polo-like kinase 1(PLK1) in the migration and invasiveness of human colorectal cancer cells., Methods: Nine colorectal cancer cell lines were cultured. Cell lines with the highest level of PLK1 expression was selected by PCR and Western blot. Three siRNA oligo segments targeting PLK1 were designed and selected cell lines transfected. Successful transfection was confirmed using real-time PCR and Western blot. Changes in migration and invasiveness of the selected cell line were evaluated by Transwell test., Results: Colorectal cancer cell line SW1116 was selected with the highest expression of PLK1 at both mRNA level and protein level. The expression of PLK1 in SW1116 was reduced by the three siRNA oligo segments to varying degrees, and the No.1 siRNA oligo segment was the most efficient. In migration test, the number of cells crossing through chambers in PLK1-siRNA group was 44 ± 14, which was lower than that in the negative control group (242 ± 40) and in blank control group(240 ± 38). In invasion test, the number of cells crossing through chambers in PLK1-siRNA group was 62 ± 3, which was lower than that in negative control group (207 ± 12) and in blank control group (211 ± 15). These differences were statistically significant(P<0.01)., Conclusion: PLK1 silencing by siRNA may inhibit the migration and invasiveness of colorectal cancer cells, suggesting that PLK1 might play an important role in the infiltration and metastasis of colorectal cancer.