Oncogenic human papillomavirus is the key determinant of cervical cancer, but other risk factors interact with it to define individual risk. Among these, there is oral contraceptive (OC) use. A quantitative review of the link between OCs and cervical cancer was performed. Long-term (>5 year) current or recent OC use has been related to an about two-fold excess risk of cervical cancer. Such an excess risk, however, levels off after stopping use, and approaches unity 10 or more years after stopping. The public health implications of OC use for cervical cancer are limited. In any case, such implications are greater in middle-income and low-income countries, as well as in central and eastern Europe and Latin America, where cervical cancer screening and control remain inadequate.
The relation between alcohol consumption and mortality is a J-shaped curve in most of the many studies published on this topic. The Copenhagen Prospective Population Studies demonstrated in the year 2000 that wine intake may have a beneficial effect on all cause mortality that is additive to that of alcohol. Wine contains various poliphenolic substances which may be beneficial for health and in particular flavonols (such as myricetin and quercetin), catechin and epicatechin, proanthocyanidins, anthocyanins, various phenolic acids and the stilbene resveratrol. In particular, resveratrol seems to play a positive effect on longevity because it increases the expression level of Sirt1, besides its antioxidant, anti-inflammatory and anticarcinogenic properties. Moderate wine drinking is part of the Mediterranean diet, together with abundant and variable plant foods, high consumption of cereals, olive oil as the main (added) fat and a low intake of (red) meat. This healthy diet pattern involves a "Mediterranean way of drinking," that is a regular, moderate wine consumption mainly with food (up to two glasses a day for men and one glass for women). Moderate wine drinking increases longevity, reduces the risk of cardiovascular diseases and does not appreciably influence the overall risk of cancer.
Read moreLimited data on smoking prevalence allowing valid between-country comparison are available in Europe. The aim of this study is to provide data on smoking prevalence and its determinants in 18 European countries. In 2010, within the Pricing Policies And Control of Tobacco in Europe (PPACTE) project, we conducted a face-to-face survey on smoking in 18 European countries (Albania, Austria, Bulgaria, Czech Republic, Croatia, England, Finland, France, Greece, Hungary, Ireland, Italy, Latvia, Poland, Portugal, Romania, Spain and Sweden) on a total of 18 056 participants, representative for each country of the population aged 15 years or older. Overall, 27.2% of the participants were current smokers (30.6% of men and 24.1% of women). Smoking prevalence was highest in Bulgaria (40.9%) and Greece (38.9%) and lowest in Italy (22.0%) and Sweden (16.3%). Smoking prevalence ranged between 15.7% (Sweden) and 44.3% (Bulgaria) for men and between 11.6% (Albania) and 38.1% (Ireland) for women. Multivariate analysis showed a significant inverse trend between smoking prevalence and the level of education in both sexes. Male-to-female smoking prevalence ratios ranged from 0.85 in Spain to 3.47 in Albania and current-to-ex prevalence ratios ranged from 0.68 in Sweden to 4.28 in Albania. There are considerable differences across Europe in smoking prevalence, and male-to-female and current-to-ex smoking prevalence ratios. Eastern European countries, lower income countries and those with less advanced tobacco control policies have less favourable smoking patterns and are at an earlier stage of the tobacco epidemic.
Read moreOur study confirms and further quantifies that a diet rich in fruits and vegetables and poor in meat and products of animal origin has a favourable role against OCP cancer.
Read more1529 Background: The efficacy of low-dose computed tomography (LDCT) screening is currently being tested in prospective randomized trials worldwide. Some of these trials are also investigating the value of non-invasive biomarkers, to improve the cost-benefit ratio of LDCT by individual risk assessment. In the present study, we have analyzed the capacity of a miRNA signature classifier (MSC) based on 24 previously refined microRNAs circulating in plasma to predict the outcome of lung cancer patients within the LDCT screening program. Methods: Between 2000 and 2010, 3411 heavy smokers were enrolled in a screening program, with annual (2225) or biennial (1186) LDCT. During the first five years of screening, a total of 111 consecutive subjects developed lung cancer. The actuarial five-year survival according to clinical and pathological characteristics was calculated for all patients, and for the subset of 76 patients suitable for plasma MSC analysis, according to three different risk groups (High, Intermediate or Low). Median follow-up of the alive patients was 4.5 years (Inter Quartile Range = 6.5). Results: Five-year survival was 55% in overall (median 7.9 yrs), 63% for LDCT-detected cases (median nc), 90% for pStage I (median nc), 9% for pStage II-IV (median 1.5 yrs, p<0.001), 68% for cancers detected in the initial two years of screening (median nc), and 38% for years 3 to 5 (median 3.0 yrs, p<0.004). None of the 13 interval cancers survived 4 years (median 0.8 yrs, p<0.001). In the subset suitable for plasma MSC analysis , survival was 76% for low- to intermediate risk MSC (median nc), and 35% for High risk MSC (median 2.9 yrs, p=0.002). The prognostic power of MSC persisted when the analysis was restricted to LDCT-detected cases after exclusion of interval cancers (85 vs. 38% respectively, p<0.001). No cancer deaths were observed in the subset of 28 patients with pStage I and low- to intermediate risk MSC. Conclusions: Patients developing interval lung cancer or with a Stage higher than I had a very poor outcome, despite LDCT monitoring. Plasma MSC predicted lung cancer outcome effectively, and might improve the individual risk assessment and performance of LDCT screening in the near future. Clinical trial information: INT 05-53.
Read moreLa Vecchia, Carloa,b; Bosetti, Cristinaa; Bertuccio, Paolaa,b; Castro, Clarac; Pelucchi, Claudioa; Negri, Evaa Author Information
Read moreAs CDX2 expression precedes the occurrence of gastric preneoplastic lesions in the intestinal differentiation pathway, study of these steps of gastric carcinogenesis may contribute toward understanding the early effects of gastric cancer determinants. Our aim was to quantify the association between Helicobacter pylori infection and other environmental factors and the gastric expression of CDX2. Dyspeptic patients undergoing an upper digestive endoscopy (Gastroenterology Department, Maputo Central Hospital) were consecutively invited to participate in this study and classified as having normal stomach/chronic nonatrophic gastritis (NS/CNAG), chronic atrophic gastritis (CAG), or intestinal metaplasia (IM). For all patients with CAG or IM and a subsample of NS/CNAG patients (sex-matched and age-matched, 1 : 2), H. pylori infection and CDX2 gene expression were assessed by histology and PCR and by immunohistochemistry, respectively. Age-adjusted, sex-adjusted, education-adjusted, and H. pylori infection-adjusted odds ratios (OR) and 95% confidence intervals (95% CI) were computed. CDX2 expression was observed in 56 NS/CNAG (49.1%), 39 CAG (86.7%), and all IM patients (n=12). It was more frequent among the H. pylori-infected patients (OR=2.26, 95% CI: 1.00-5.15). Infection with high-virulence strains was associated with CDX2 expression in patients with CAG (cagA, OR=3.20, 95% CI: 1.35-7.52) and IM (vacA m1, OR=5.86, 95% CI: 1.08-31.62). Patients with a lower frequency of vegetable consumption had a higher risk of marked CDX2 expression (OR=3.64, 95% CI: 1.02-12.95). The virulence of the infecting strains and vegetable consumption were associated with CDX2 expression and may play a role in the progression to more advanced lesions.
Read moreBesides presenting the benefits of a comprehensive tobacco control strategy, the model helps identify information gaps in surveillance and evaluation schemes that will promote the effectiveness of future tobacco control policy in Italy.
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