ABSTRACT
BACKGROUND: Population-based cancer registry studies of care patterns can help elucidate reasons for the marked geographic variation in cancer survival across Italy. The article provides a snapshot of the care delivered to cancer patients in Italy. METHODS: Random samples of adult patients with skin melanoma, breast, colon and non-small cell lung cancers diagnosed in 2003-2005 were selected from 14 Italian cancer registries. Logistic models estimated odds of receiving standard care (conservative surgery plus radiotherapy for early breast cancer; surgery plus chemotherapy for Dukes C colon cancer; surgery for lung cancer; sentinel node biopsy for >1mm melanoma, vs. other treatment) in each registry compared to the entire sample (reference). RESULTS: Stage at diagnosis for breast, colon and melanoma was earlier in north/central than southern registries. Odds of receiving standard care were lower than reference in Sassari (0.68, 95%CI 0.51-0.90) and Napoli (0.48, 95%CI 0.35-0.67) for breast cancer; did not differ across registries for Dukes C colon cancer; were higher in Romagna (3.77, 95%CI 1.67-8.50) and lower in Biella (0.38, 95%CI 0.18-0.82) for lung cancer; and were higher in Reggio Emilia (2.37, 95%CI 1.12-5.02) and lower in Ragusa (0.27, 95%CI 0.14-0.54) for melanoma. CONCLUSIONS: Notwithstanding limitations due to variations in the availability of clinical information and differences in stage distribution between north/central and southern registries, our study shows that important disparities in cancer care persist across Italy. Thus the public health priority of reducing cancer survival disparities will not be achieved in the immediate future.
Subject(s)
Health Services Accessibility/statistics & numerical data , Neoplasms/mortality , Neoplasms/therapy , Adolescent , Adult , Aged , Aged, 80 and over , Humans , Italy/epidemiology , Middle Aged , Neoplasm Staging , Neoplasms/pathology , Registries , Socioeconomic Factors , Survival Analysis , Young AdultABSTRACT
Chronic mucosal inflammation is considered a risk factor for colorectal cancer. Neutrophils are a major source of oxidants, whereas cyclooxygenase 2 (COX-2) and Hypoxia Inducible Factor-1alpha (HIF-1alpha) protein expression levels are increased in inflammatory and malignant lesions. The main purpose of the present study was to evaluate myeloperoxidase (MPO) positive cell infiltration, COX-2 and HIF-1alpha protein expression in colorectal carcinogenesis, especially in its early phases, using immunohistochemistry and immunofluorescence confocal microscopy techniques. MPO, COX-2 and HIF-1alpha proteins were expressed at higher rates in the normal colorectal mucosa of patients with inflammatory bowel diseases and colorectal tumours than in patients with normal colonoscopy. A gradual increase in COX-2 and HIF-1alpha protein expression was observed in dysplastic aberrant crypt foci, adenomas and carcinomas, showing a strong relation to dysplasia. In conclusion, the present study supports the hypothesis of a key role of inflammation in malignant transformation of colorectal mucosa. The evaluation of some early markers related to inflammation in the mucosa of the large bowel may serve as potential tool for prognosis and therapeutic strategies.
