Colorectal cancer (CRC) has the third highest cancer incidence in the world. There is mounting evidence that the intestinal microbiota plays an important role in colorectal carcinogenesis. but there is no information on protozoa of intestinal microbiota except Blastocystis hominis, although data on this issue is scarce. In this study we are going to evaluate the prevalence of intestinal helminthes and protozoa in CRC patients and control group that includes random residents. Patients will be examined before, after surgery and chemotherapy. Parasites and protozoan infection intensity will be estimated by triple coproscopy.
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Prevalence of intestinal helminths in patients with colorectal cancer and association with cancerogenesis
Timeframe: from 2015 to 2018 years
Prevalence of Lamblia intestinalis and Cryptosporidium parvum in patients with colorectal cancer and association with cancerogenesis
Timeframe: from 2015 to 2018 years
Prevalence of intestinal protozoa (commensals) in patients with colorectal cancer and association with cancerogenesis
Timeframe: from 2015 to 2018 years