Anintita Boonyawat. Exploring distribution of pathogenic gut microbiota in colorectal cancer subjects using quantitative PCR. Master's Degree(Biosciences). Mae Fah Luang University. Learning Resources and Educational Media Center. : , 2018.
Exploring distribution of pathogenic gut microbiota in colorectal cancer subjects using quantitative PCR
Abstract:
Colorectal cancer (CRC) is the third most prevalent cancer in the world. Recently, the human microbiota has been shown to define their role and have a dynamic impact on the human health. The etiology of CRC is increasing evidence that human microbial dysbiosis contributes to CRC development, particularly the pathogenic bacteria. However, the relationship between human microbiota and CRC is still under-explored. This study was aimed to quantify and compare the composition of pathogenic bacteria which might involving to CRC in different groups of subjects. Quantitative PCR (qPCR) was used to analyze and compare human microbiota composition from three different compartments including saliva, feces, and colonic tissue of three groups of the subject including 6 patients with colorectal cancer (CRC), 11 participants with adenomatous polyp (PO), and 21 normal participants (NO). The result indicate that the different compartments of the gastrointestinal tract (GI) was showed different of bacterial community. Salivary microbiota is differ from the microbiota of the intestinal lumen (feces and washes from colonic tissue). The most of pathogenic bacteria were high prevalence in the adenomatous polyp group. However, a significant difference of interested pathogenic bacteria was not observed. There are limitations to the study. Further study should explore the role of bacteria in the mechanisms involved in the development of CRC and increasing the size of the population in the study for more precision of experiment.
Mae Fah Luang University. Learning Resources and Educational Media Center