Allowing patients to eat normal food at will from the first day after major upper GI surgery does not increase morbidity compared with traditional care with nil-by-mouth and enteral feeding.
Background:microRNAs (miRNAs) exist in blood in an apparently stable form. We have explored whether serum miRNAs can be used as non-invasive early biomarkers of colon cancer.Methods:Serum samples from 30 patients with colon cancer stage IV and 10 healthy controls were examined for the expression of 375 cancer-relevant miRNAs. Based on the miRNA profile in this study, 34 selected miRNAs were measured in serum from 40 patients with stage I–II colon cancer and from 10 additional controls.Results:Twenty miRNAs were differentially expressed in serum from stage IV patients compared with controls (P<0.01). Unsupervised clustering revealed four subgroups; one corresponding mostly to the control group and the three others to the patient groups. Of the 34 miRNAs measured in the follow-up study of stage I–II patients, 21 showed concordant expression between stage IV and stage I–II patient. Based on the profiles of these 21 miRNAs, a supervised linear regression analysis (Partial Least Squares Regression) was performed. Using this model we correctly assigned stage I–II colon cancer patients based on miRNA profiles of stage IV patients.Conclusion:Serum miRNA expression profiling may be utilised in early detection of colon cancer.
The reoperation rate of patients with CI is high but the removal rate of the pouch is low and is not associated with a high rate of revision. CI is a good alternative to conventional ileostomy in patients not suitable for restorative proctocolectomy or where this procedure has failed.
The primary aim of this study was to analyze human colon cancer and normal adjacent tissue using (1)H HR MAS MR spectroscopy and chemometric analyses, evaluating possible biomarkers for colon cancer. The secondary aim was to investigate metabolic profiles of tissue samples (n = 63, 31 patients) with microsatellite instability (MSI-H) compared to microsatellite stable (MSS) colon tissue. Our hypothesis was that this method may provide an alternative to MSI genotyping. Cancer samples were clearly separated from normal adjacent mucosa by 100% accuracy. Several metabolites such as lactate, taurine, glycine, myo-inositol, scyllo-inositol, phosphocholine (PC), glycerophosphocholine (GPC), creatine, and glucose were identified as potential biomarkers for cancer detection. Adenomas (n = 4) were also separated from cancer and normal samples mainly based on higher GPC and PC levels. Interestingly, metabolic differences in normal colon mucosa between MSI-H and MSS patients were observed. MSI status was validated with 80% accuracy with a sensitivity and specificity of 79% and 82%, respectively, including both cancer and normal samples The metabolic differences between MSI-H and MSS may be very interesting in the early detection of cancer development and of high clinical importance in the work of improving diagnosis and characterization of colon cancer.
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