[Characteristics of gut microbiome communities in the invasive African giant snail under urbanization gradient].

To investigate the diversity and community structure of gut microbiome of the invasive species, , along an urbanization gradient, we collected 30 samples from five parks in the urban, suburban, and rural areas of Xiamen City. Using full-length 16S rRNA gene sequencing performed by the third generation PacBio sequencing platform, we analyzed the community characteristics of gut microbiome and soil microbiome in different habitats. We found a significant disparity between the composition of gut microbiome of and that of the soil microbiome in their habitats.

[Expression of bcl-2, c-erbB2, and p53 protein in cervical epithelial carcinogenesis].

Background & Objective: Less research of molecular biology have been reported on cervical carcinogenesis. So the authors designed this study to evaluate the expression and clinical significance of antiapoptosis gene bcl-2, oncogene c-erbB2, and tumor suppressor gene p53 in the progression of this kind of cancer.

Methods: Using S-P immunohistochemical technique, the authors examined the expression of bcl-2, c-erbB2, and p53 in 48 squamous cell carcinoma of the cervix, 42 cervical intraepithelial neoplasia (CIN), and 20 normal cervical tissues.