Lifetime and baseline alcohol intakes and risk of pancreatic cancer in the European Prospective Investigation into Cancer and Nutrition study

Recent evidence suggested a weak relationship between alcohol consumption and pancreatic cancer (PC) risk. In our study, the association between lifetime and baseline alcohol intakes and the risk of PC was evaluated, including the type of alcoholic beverages and potential interaction with smoking. Within the European Prospective Investigation into Cancer and Nutrition (EPIC) study, 1,283 incident PC (57% women) were diagnosed from 476,106 cancer‐free participants, followed up for 14 years. Amounts of lifetime and baseline alcohol were estimated through lifestyle and dietary questionnaires, respectively. Cox proportional hazard models with age as primary time variable were used to estimate PC hazard ratios (HR) and their 95% confidence interval (CI). Alcohol intake was positively associated with PC risk in men. Associations were mainly driven by extreme alcohol levels, with HRs comparing heavy drinkers (>60 g/day) to the reference category (0.1–4.9 g/day) equal to 1.77 (95% CI: 1.06, 2.95) and 1.63 (95% CI: 1.16, 2.29) for lifetime and baseline alcohol, respectively. Baseline alcohol intakes from beer (>40 g/day) and spirits/liquors (>10 g/day) showed HRs equal to 1.58 (95% CI: 1.07, 2.34) and 1.41 (95% CI: 1.03, 1.94), respectively, compared to the reference category (0.1–2.9 g/day). In women, HR estimates did not reach statistically significance. The alcohol and PC risk association was not modified by smoking status. Findings from a large prospective study suggest that baseline and lifetime alcohol intakes were positively associated with PC risk, with more apparent risk estimates for beer and spirits/liquors than wine intake.     

Health-related quality of life and physical activity level after a behavior change program at Norwegian healthy life centers: a 15-month follow-up

Quality of Life Research - The long-term impact of primary care behavior change programs on health-related quality of life (HRQoL) and physical activity (PA) level is unknown. The aim of this study...     

Epidemiological research on marginalized groups implies major validity challenges; lesbian health as an example

ObjectiveSeveral studies have suggested an increased risk of health problems among lesbian women. Evidence-based practice calls for knowledge about risks and prevalences of diseases deserving special awareness. However, research on marginalized groups raises ethical challenges from normative assumptions underlying analysis, because models are drawn from the cultural context where marginalization itself is created and recreated. Several methodological problems consequently appear.Study design and settingIn this article, we aim to explicate some challenges related to validity in epidemiological research on minority groups where members can conceal their identity—lesbian health being our case. Our approach is a case study drawing on analytic induction.ResultsWe demonstrate challenges related to conceptual indistinctness, internal and external validity, confounders, cultural context, type II error, and the issue of small population subgroups. As women with a lesbian orientation constitute a relatively small fraction of the population, modest measurement problems can lead to serious errors in inference about health in “lesbians.”ConclusionGeneralization of the findings about health to “all lesbians,” and comparison between “all lesbians” and “women in general,” should be undertaken with great caution. Similar awareness should be exercised in studies on any minority group where members can conceal their identity.     

Chemogenomic profiling: identifying the functional interactions of small molecules in yeast

We demonstrate the efficacy of a genome-wide protocol in yeast that allows the identification of those gene products that functionally interact with small molecules and result in the inhibition of cellular proliferation. Here we present results from screening 10 diverse compounds in 80 genome-wide experiments against the complete collection of heterozygous yeast deletion strains. These compounds include anticancer and antifungal agents, statins, alverine citrate, and dyclonine. In several cases, we identified previously known interactions; furthermore, in each case, our analysis revealed novel cellular interactions, even when the relationship between a compound and its cellular target had been well established. In addition, we identified a chemical core structure shared among three therapeutically distinct compounds that inhibit the ERG24 heterozygous deletion strain, demonstrating that cells may respond similarly to compounds of related structure. The ability to identify on-and-off target effects in vivo is fundamental to understanding the cellular response to small-molecule perturbants.     

Trigeminal neuralgia caused by Dandy-walker malformation: A case report and systematic review of the literature

Trigeminal neuralgia is a pain condition that affects the face along the distribution of the trigeminal nerve and can be recurrent and chronic. Dandy-Walker syndrome is a complex congenital brain anomaly that occurs during embryonic development of the cerebellum and the fourth ventricle. It is characterized by inferior cerebellar vermis hypoplasia and incomplete formation of the fourth ventricle. Dandy-Walker Syndrome is associated with comorbid genetic conditions. It can include congenital heart defects, eye abnormalities, intellectual disability, congenital tumors, and other brain defects such as agenesis of the corpus callosum. However, associations of trigeminal neuralgia and Dandy Walker syndrome have been an infrequent entity. Herein, we report a case of a 23-year-old female patient that presented with complaints of severe left orofacial pain over two years. MRI evaluation was consistent with Dandy-Walker malformation findings that we suspect caused the compression in the trigeminal root entry zone that ultimately gave rise to the patient''s symptoms.     

Intravascular fluorocarbon-stabilized microbubbles protect against fatal anemia in rats

It has earlier been hypothesized that intravascular microbubbles, derived from a dodecafluoropentane (DDFP) emulsion, can transport physiologically significant amounts of oxygen in the animal body. To test this notion, anesthetized oxygen breathing rats were rendered severely anemic by bleeding and volume replacement. Rats treated with 0.014 ml/kg of DDFP in a 2% emulsion had normal circulatory parameters and behaved normally when waking up from anesthesia while controls died during anesthesia. Oxygen-breathing intact rats given 0.01 ml/kg of DDFP had muscle oxygen tensions which, for about 2.5 hours, exceeded those of controls by 50-100%. It was further verified in vitro that DDFP-derived microbubbles can exchange oxygen with a surrounding aqueous medium. Extrapolation from these experiments indicates that less than 1 ml of DDFP, in emulsion-form, could provide for the resting oxygen consumption of an adult person. This suggests various therapeutic uses of the emulsion.     

Dietary intake of iron, heme-iron and magnesium and pancreatic cancer risk in the European prospective investigation into cancer and nutrition cohort

Several studies support a protective effect of dietary magnesium against type 2 diabetes, but a harmful effect for iron. As diabetes has been linked to pancreatic cancer, intake of these nutrients may be also associated with this cancer. We examined the association between dietary intake of magnesium, total iron and heme-iron and pancreatic cancer risk in the European Prospective Investigation into Cancer and Nutrition (EPIC) cohort. In total, 142,203 men and 334,999 women, recruited between 1992 and 2000, were included. After an average follow-up of 11.3 years, 396 men and 469 women developed exocrine pancreatic cancer. Hazard ratios and 95% confidence intervals (CIs) were obtained using Cox regression stratified by age and center, and adjusted for energy intake, smoking status, height, weight, and self-reported diabetes status. Neither intake of magnesium, total iron nor heme-iron was associated with pancreatic cancer risk. In stratified analyses, a borderline inverse association was observed among overweight men (body mass index, ≥ 25 kg/m(2) ) with magnesium (HR(per 100 mg/day increase) = 0.79, 95% CI = 0.63-1.01) although this was less apparent using calibrated intake. In female smokers, a higher intake of heme-iron was associated with a higher pancreatic cancer risk (HR (per 1 mg/day increase) = 1.38, 95% CI = 1.10-1.74). After calibration, this risk increased significantly to 2.5-fold (95% CI = 1.22-5.28). Overall, dietary magnesium, total iron and heme-iron were not associated with pancreatic cancer risk during the follow-up period. Our observation that heme-iron was associated with increased pancreatic cancer risk in female smokers warrants replication in additional study populations.     

参脉注射液联合重组人脑钠利肽治疗顽固性心衰随机平行对照研究

[目的]观察参脉注射液联合重组人脑钠利肽治疗顽固性心衰疗效。[方法]使用随机平行对照方法,将30例住院患者按随机数字表随机分为两组,对照组15例,限盐、吸氧和休息、积极去除诱因(抗感染,纠正酸碱失衡和电解质紊乱等)、抗心衰治疗(包括充分利尿,扩张血管ACET或ARB,地高辛等)。rhBNP治疗:负荷剂量1.5μg/mL静脉推注后,以0.0075μg/(kg.min)持续静脉泵入维持24h,2次/周,2周为1疗程。治疗组15例,西药治疗同对照组,参脉注射液50mL+5%GS/NS200mL静滴,1次/d。观测临床症状、一般指标、左心室功能、血液生化、B型利钠肽。2周为1疗程,连续治疗1疗程,判定疗效。[结果]治疗组,显效9例,有效5例,无效1例,总有效率93.33%。对照组显效3例,有效6例,无效6例,总有效率60.00%,治疗组疗效优于对照组(P<0.05)。心功能、BNP指标均有改善(P<0.01,P<0.05),治疗组优于对照组(P<0.01)。[结论]参脉注射液联合重组人脑钠利肽治疗各种顽固性心功能不全,临床症状、血液动力学均有改善,副作用少,安全,值得推广应用。     

Severity of Giardia infection associated with post-infectious fatigue and abdominal symptoms two years after

Background  

A high rate of post-infectious fatigue and abdominal symptoms two years after a waterborne outbreak of giardiasis in Bergen, Norway in 2004 has previously been reported. The aim of this report was to identify risk factors associated with such manifestations.