Blood analyses can replace endoscopic researches (a gastroscopy and a colonoscopy) by search of malignant neoplasms of a stomach and an intestine. Two corresponding reports have been presented on oncologic congress ECCO-ESMO in Berlin.

Group of researchers under a management Ulriki Stein (Ulrike Stein) from the Berlin Center of molecular medicine and a hospital Rummage has developed the test, based on detection in blood of the patient of gene S100A4 which is bound to a colorectal cancer and malignant tumours of a stomach, and also defines probability of an innidiation of these tumours.

Research was spent on 185 patients with a colon cancer, 190 patients with a cancer of a rectum and 91 patient with a carcinoma of the stomach. In control group there were 51 persons.

The second work has been prepared Joost Louwagie in Belgian biotechnological company OncoMethylome. Samples of blood of 193 patients who operated in connection with a colorectal cancer and 688 persons, the past a colonoscopy in which taped presence of genes SYNE1 and FOXE1, also bound to an intestine cancer were studied.
The colorectal cancer amazes each seventeenth person in the developed countries. The mortality from this kind of tumours substantially depends on time of their detection.

For carrying out of endoscopic researches expensive equipment and the highly skilled personnel is required. In comparison with them, the blood analysises which fence can be made by the nurse, and researches - to be spent on-line, much more favourably. Besides, the analysis of blood is much more convenient and more safe for the patient.