Search results for "Colore"
showing 10 items of 1250 documents
Trends of colorectal cancer incidence and mortality rates from 2003 to 2014 in Italy
2019
Objective: To evaluate the trends of colorectal cancer (CRC) incidence and mortality rates from 2003 to 2014 in Italy by age groups and regions. Methods: We used the data of 48 cancer registries from 17 Italian regions to estimate standardized incidence and mortality rates overall and by sex, age groups (<50, 50–69, 70+ years), and geographic area (northwest, northeast, center, south, and islands). Time trends were expressed as annual percent change in rates (APC) with 95% confidence intervals (95% CI). Results: Incidence rates decreased from 104.3 (2003) to 89.9 × 100,000 (2014) in men and from 64.3 to 58.4 × 100,000 in women. Among men, incidence decreased during 2007–2010 (APC −4.0, 9…
Endoscopic laser palliation for rectal cancer-- therapeutic outcome and complications in eighty-three consecutive patients.
2002
OBJECTIVE The treatment of advanced rectal cancer is still a challenge. We analysed the short-term success, treatment-related complications and the long-term outcome after laser palliation for rectal cancer. METHODS Over a ten-years period eighty-three consecutive patients (median age 81 (46-94) yrs; 43 female) were treated mainly for obstructive symptoms or tumour bleeding. Laser palliation was performed using a Neodymium:Yttrium-Aluminium-Garnet (Nd:YAG) laser. RESULTS The immediate overall-success rate was 96.4 % (80 of 83 patients) and only one female received a diverting colostomy because of an inaccessible high-grade rectal stenosis, initially. During follow-up, eight additional patie…
Transanal endoscopic microsurgical excision of pT2 rectal cancer: results and possible indications.
2007
In previous studies, local excision was predominantly established for "low-risk" pT1 rectal cancer. The results obtained with T2 tumors are unclear; recurrence rates of 0 to 67 percent were reported. This study was designed to determine the value of local excision for T2 rectal carcinomas, prognostic factors, and the need for reoperation.After local excision of 649 patients with rectal tumors, pT2 carcinoma was found in 44 patients. In general, immediate reoperation was recommended; however, 24 patients declined further surgery or were not reoperated because of comorbidities. The results were analyzed separately for local R0 resection of low-risk carcinomas and for prognostically unfavorabl…
What is the Meaning of an Early Anastomotic Recurrence after Curative Right Hemicolectomy? A Synchronous, Metachronous, or What Else?
2019
In this paper we present a case of unexpected early local recurrence after surgery for colon cancer. Notably, an anastomotic recurrence was diagnosed two months after curative right hemicolectomy. Accurate preoperative endoscopic and radiological explorations were carried out, the resection was performed according to the oncological surgical principles, and the pathologic report confirmed the oncological radicality of the treatment performed. Therefore, the precocity of local recurrence appeared surprising, and led us to carry out a review of the literature in order to look into its possible explanations. The results of this research are presented.
Dicer and drosha expression and response to bevacizumab-based therapy in advanced colorectal cancer patients.
2013
PURPOSE: The miRNA-regulating enzymes Dicer and Drosha exhibit aberrant expression in several cancer types. Dicer and Drosha play a crucial role during the angiogenetic process in vitro and, for Dicer, in vivo. We aimed to investigate the potential role of Dicer and Drosha in predicting response to Bevacizumab-based therapy in advanced colorectal cancer (CRC) patients. METHODS: Dicer and Drosha mRNA levels were analysed in formalin-fixed paraffin-embedded specimens from patients affected by advanced CRC treated with or without Bevacizumab-containing regimens (n=116 and n=50, respectively) and from patients with diverticulosis as control group (n=20). The experimental data were obtained usin…
Rural–urban inequalities in detection rates of colorectal tumours in the population
2011
Abstract Background Because few data are available on this topic, we investigated the influence of geographical determinants on colorectal adenoma detection and cancer incidence rates. Methods Between 1990 and 1999, 6220 Cote d’Or inhabitants (France) were first-diagnosed with a colorectal adenoma, and 2389 with an invasive adenocarcinoma. The impact of the rural–urban place of residence and of a physician location in municipalities on adenoma and cancer detection rates was studied using Poisson regression. Results World-standardized adenoma detection rate was significantly higher in urban areas (102 [95%CI: 97–107]) than in rural areas (78 [95%CI: 72–84]). The impact of the absence of phys…
Association analyses identify 31 new risk loci for colorectal cancer susceptibility
2019
Colorectal cancer (CRC) is a leading cause of cancer-related death worldwide, and has a strong heritable basis. We report a genome-wide association analysis of 34,627 CRC cases and 71,379 controls of European ancestry that identifies SNPs at 31 new CRC risk loci. We also identify eight independent risk SNPs at the new and previously reported European CRC loci, and a further nine CRC SNPs at loci previously only identified in Asian populations. We use in situ promoter capture Hi-C (CHi-C), gene expression, and in silico annotation methods to identify likely target genes of CRC SNPs. Whilst these new SNP associations implicate target genes that are enriched for known CRC pathways such as Wnt …
Specific codon 13 K-ras mutations are predictive of clinical outcome in colorectal cancer patients, whereas codon 12 K-ras mutations are associated w…
2002
Background: K-ras mutations, one of the earliest events observed in colorectal carcinogenesis, are mostly found in codons 12 and 13, and less frequently in codon 61, all three of which are estimated to be critical for the biological activity of the protein. Nevertheless the prognostic significance of such mutations remains controversial. Our purpose was to assess whether any or specific K-ras mutations in primary colorectal cancer had prognostic significance and were linked to clinico-pathological parameters. Patients and methods: Paired tumor and normal tissue samples from a consecutive series of 160 untreated patients (median of follow up 71 months), undergoing resective surgery for prima…
p53 mutations in L3-loop zinc-binding domain, DNA-ploidy, and S phase fraction are independent prognostic indicators in colorectal cancer: A prospect…
2002
p53 gene alterations are among the most common events observed in colorectal cancer,and are accompanied frequently by DNA aneuploidy and high proliferative activity. The prognostic significance of such mutations remains controversial. We prospectively evaluated the prognostic significance of p53 mutations, DNA-ploidy, and S phase fraction (SPF) in a consecutive series of 160 colorectal cancer patients (median follow-up 71 months). Tumor DNA was screened for p53 mutations by PCR/single-strand conformational polymorphism/sequencing. DNA-ploidy and SPF were assessed by DNA flow cytometry. p53 mutations were detected in 68 of 160 (42.5%) cases. In 56% (38 of 68) of these, p53 mutations were fou…
Colorectal cancer in patients with type 2 diabetes mellitus: a single-center experience
2017
Type 2 diabetes mellitus (T2DM) is associated with an increased risk of colorectal cancer (CRC). The aim of the study is to evaluate the prevalence of CRC in a cohort of Caucasian patients with T2DM and the association with other variables previously known to be related with increased risk of CRC. We retrospectively evaluated the data of 741 consecutive Caucasian patients with T2DM who underwent colonoscopic screening in our tertiary referral center. A control cohort of 333 patients with thyroid disease was selected to evaluate the difference in the incidence of CRC. At a median follow-up of 132.5 months (range 33.3-175.7), 67 cases of cancer (prevalence 9%) occurred; among these, 14 cases …