Omega Bioservices Inc 1 article published in JoVE Cancer Research Characterization and Functional Prediction of Bacteria in Ovarian Tissues Lanbo Zhao*1, Weichu Zhao*2, Qi Wang*1, Dongxin Liang1, Yu Liu3, Guoxing Fu4, Lu Han1, Yiran Wang1, Chao Sun1, Qing Wang1, Qing Song1, Qiling Li1, Qinrui Lu1 1Department of Pathology, First Affiliated Hospital of Xi’an Jiaotong University, 4Omega Bioservices Inc Immunohistochemistry staining and 16S ribosomal RNA gene (16S rRNA gene) sequencing were performed in order to discover and distinguish bacteria in cancerous and noncancerous ovarian tissues in situ. The compositional and functional differences of the bacteria were predicted by using BugBase and Phylogenetic Investigation of Communities by Reconstruction of Unobserved States (PICRUSt).