Technology of liquid chromatographic serum spectral images fixation in the diagnosis of colonic mucosal dysplasia

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Abstract

Aim. To demonstrate the possibility of use of technology of liquid chromatographic serum spectral images fixing for the diagnosis of colonic epithelial dysplasia in patients with ulcerative colitis.

Methods. 49 patients with ulcerative colitis were examined. Colonoscopy with Mayo index evaluation and biopsy of the intestinal mucosa were carried out using OLYMPUS CV-170 device (Japan). Biopsies were taken from the most affected areas of the colonic mucosa (from 3 to 10 biopsies). Morphological study included an assessment of histological activity of ulcerative colitis and colonic mucosal dysplasia. The results of histological studies were evaluated by two experts. High performance liquid chromatography of serum was performed by a standard technique in the chromatograph «Milichrom A-02» (CJSC «EcoNova», Novosibirsk). Statistical analysis of serum chromatograms was performed with the use of chromatograph combined with a PC, the end result was construction of spectral images of the disease.

Results. In 13 patients with ulcerative colitis the results of histological examination revealed various degrees of dysplasia. The set of spectral images of different patients, obtained in the processing of chromatograms, composed the diagnostic cloud of a pathological condition. The study revealed complete differentiation of liquid-chromatographic spectral images of serum of patients with ulcerative colitis with and without colonic mucosal dysplasia according to the results of multivariate cluster analysis. The diagnostic accuracy of the method was 88%.

Conclusion. The possibility of using the technology of construction and analysis of liquid-chromatographic spectral images of serum for the diagnosis of colonic epithelial dysplasia in patients with ulcerative colitis was demonstrated.

About the authors

O P Alekseeva

Nizhny Novgorod regional clinical hospital named after Semashko

Author for correspondence.
Email: al_op@mail.ru
Nizhny Novgorod, Russia

E N Kolodey

Nizhny Novgorod regional clinical hospital named after Semashko

Email: al_op@mail.ru
Nizhny Novgorod, Russia

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© 2017 Alekseeva O.P., Kolodey E.N.

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