57 research outputs found

    Coffee, tea and decaffeinated coffee in relation to hepatocellular carcinoma in a European population: multicentre, prospective cohort study

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    Inverse associations of coffee and/or tea in relation to hepatocellular carcinoma (HCC) risk have been consistently identified in studies conducted mostly in Asia where consumption patterns of such beverages differ from Europe. In the European Prospective Investigation into Cancer and nutrition (EPIC), we identified 201 HCC cases among 486,799 men/women, after a median follow-up of 11 years. We calculated adjusted hazard ratios (HR) for HCC incidence in relation to quintiles/categories of coffee/tea intakes. We found that increased coffee and tea intakes were consistently associated with lower HCC risk. The inverse associations were substantial, monotonic and statistically significant. Coffee consumers in the highest compared to the lowest quintile had lower HCC risk by 72% (HR: 0.28; 95% confidence intervals (CI): 0.16 to 0.50, P-trend <0.001). The corresponding association of tea with HCC risk was 0.41 (95% CI: 0.22 to 0.78, P-trend=0.003). There was no compelling evidence of heterogeneity of these associations across strata of important HCC risk factors, including hepatitis B or hepatitis C status (available in a nested case-control study). The inverse, monotonic associations of coffee intake with HCC were apparent for caffeinated (P-trend=0.009), but not decaffeinated (P-trend=0.45) coffee for which, however, data were available for a fraction of subjects. Results from this multi-centre, European cohort study strengthen the existing evidence regarding the inverse association between coffee/tea and HCC risk. Given the apparent lack of heterogeneity of these associations by HCC risk factors and that coffee/tea are universal exposures, our results could have important implications for high HCC risk subjects

    Sex and death: CHD1Z associated with high mortality in moorhens

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    Sex ratios in clutches of moorhens (Gallinula chloropus) in Britain were measured on 83 chicks using the sex-linked CHD1 gene (Chromo-helicase/ATPase-DNA binding protein 1). Among birds, the female is the hetero-gametic sex (Z and W chromosomes), and the male is homogametic (two copies of the Z chromosome). We report variation among the PCR-amplified fragments of the CHD1Z, and the death of nearly all heterozygous male chicks (92%). In contrast, survivorship among females and homozygote males was 54&ndash;60%. Mortality in male heterozygotes was significantly higher than that of male homozygotes (P &lt; 0.001). Chick and egg biometrics were not significantly different between these males. The CHD1Z was unlikely to be directly responsible but may have been hitchhiked by the causal gene(s). The observations appear to follow a classic underdominance (heterozygote inferiority) pattern, but raise the paradoxical question of why one form of the Z chromosome has not been fixed, as is expected from evolutionary theory. We discuss possible explanations and include a survey of British populations based on skin specimens

    The good and bad death perceptions of health professionals working in palliative care.

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    The development of palliative care originated from shortcomings in mainstream health services. Palliative care aims to cater for both the psycho-social needs of dying patients and the allieviation of their physical symptoms. This is reflected by the good and bad death perceptions of palliative care workers, though increasing signs of institutionalization in palliative care have challenged the idealization of a good death. This study aimed to investigate the health professionals'perception of both a good and a bad death and their perception of patients'awareness context. Seventy questionnaires were distributed to nurses and social workers. The 50 returned questionnaires revealed that health professionals perceived a good death as controlling the patients'physical symptoms and psychologically preparing them, whilst a bad death was perceived as the inability to control pain and deal with any psychological distress. Factor analysis identified three main factors (lack of patient distress, patient control and staff's supporting role perceptions) in the perception of a good death whereas four main factors (the negative effect of death on the family, a patient's non-acceptance of death, not dealing with patients'fears and the age of a dying person) were identified with the perception of a bad death. Overall, health professionals perceived themselves to be open and sensitive in communicating with patients although over half felt poorly supported by other staff

    Couple communication in stepfamilies

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    Effective communication is assumed to help sustain couple relationships and is a key focus of most relationship education programs. We assessed couple problem-solving communication in 65 stepfamily and 52 first-time-marrying couples, with each group stratified into high risk and low risk for relationship problems based on family-of-origin experiences. Relative to partners in first-time couples, partners in stepfamily couples were less positive, less negative, and more likely to withdraw from discussion. Risk was associated with communication in first-time but not stepfamily couples. Stepfamily couples do not exhibit the negative communication evident in high-risk first-time-marrying couples, and available relationship education programs that focus on reducing negative communication are unlikely to meet the needs of stepfamilies
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