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Taxonomic status of eight Asian shrike species [Lanius]: phylogenetic analysis based on Cyt b and CoI gene sequences

100%

Zhang W. , Lei F.-M. , Liang G. , Yin Z.-H. , Zhao H.-F. , Wang H.-J. , Kristin A.

nr 2

173-180

Gastric microbiota alteration in Klebsiella pneumoniae-caused liver abscesses micep.247-254,fig.,ref.

84%

Chen N. , Jin T.-T. , Liu W.-N. , Zhu D.-Q. , Chen Y.-Y. , Shen Y.-L. , Ling Z.-X. , Wang H.-J. , Zhang L.-P.

tom 68

nr 2

Gastric microbiota provides a biological barrier against the invasion of foreign pathogens from the oral cavity, playing a vital role in main-taining gastrointestinal health. Klebsiella spp. of oral origin causes various infections not only in gastrointestinal tract but also in other organs, with Klebsiella pneumoniae serotype K1 resulting in a liver abscess (KLA) through oral inoculation in mice. However, the relationship between gastric microbiota and the extra-gastrointestinal KLA infection is not clear. In our study, a 454 pyrosequencing analysis of the bacterial 16S rRNA gene shows that the composition of gastric mucosal microbiota in mice with or without KLA infection varies greatly after oral inoculation with K. pneumoniae serotype K1 isolate. Interestingly, only several bacteria taxa show a significant change in gastric mucosal microbiota of KLA mice, including the decreased abundance of Bacteroides, Alisptipes and increased abundance of Streptococcus. It is worth noting that the abundance of Klebsiella exhibits an obvious increase in KLA mice, which might be closely related to KLA infection. At the same time, the endogenous antibiotics, defensins, involved in the regulation of the bacterial microbiota also show an increase in stomach and intestine. All these findings indicate that liver abscess caused by K. pneumoniae oral inoculation has a close relationship with gastric microbiota, which might provide important information for future clinical treatment.

Mitigation scratch on fused silica optics using CO2 laser

84%

Liu C.-M. , Yan Z.-H. , Yang L. , Jiang Y. , Zu X.-T. , Wang H.-J. , Liao W. , Yuan X.-D. , Zheng W.-G.

Optica Applicata

2016

tom Vol. 46, nr 3

387--397

The scratch on a fused silica surface was treated as a chain of connected damage sites and mitigated one after another using CO2 laser irradiation. The optical microscopy image shows that a scratch with the width of about 30 μm and length of several millimeters can be completely mitigated without the formation of debris and bubbles. The mitigated scratch can survive under raster scan laser irradiation with the fluency increased up to 11.0J/cm2 at 3ns and 351nm. On the contrary, the substrate without CO2 laser mitigation is seriously damaged under this irradiation. The light modulation induced by mitigation is much smaller when the scratch is mitigated before being damaged. The light modulation is about 2 when the distance to the mitigated sample is larger than 20cm. The birefringence induced by residual stress in the mitigated scratch is measured. The retardance of the mitigated scratch before being damaged is not visible. Therefore, residual stress in this mitigated scratch before being damaged should be not a critical potential risk in laser damage.

Prediction and identification of epitopes in the Emy162 antigen of Echinococcus multilocularis

67%

Pang M.-Q. , Tang F. , Wang H.-J. , Zhou Y. , Ren L. , Li R.-L. , Zhou H. , Wan C.-F. , Liu C.-C. , Yangdan C.-R. , Fan H.-N.

2020

tom 65

nr 4