Digestive

消化性
  • 文章类型: Journal Article
    背景:最近的证据表明整体饮食质量,根据饮食评分评估,可能在上消化道(UGI)癌症的发展中起作用。然而,现有的饮食评分来自高收入国家,其饮食习惯与UGI癌症负担最高的地区不同,可用数据有限的地方。这项研究旨在调查整体饮食质量与UGI癌症高危地区食管癌和胃癌风险之间的关系。
    方法:我们在2004年至2008年期间从伊朗东北部招募了50045名年龄在40-75岁之间的个体,并每年随访至2020年7月。人口统计数据,饮食,并使用经过验证的问卷收集各种暴露。饮食质量通过计算健康饮食指数(HEI)来评估,替代健康饮食指数(AHEI),替代地中海饮食(AMED),停止高血压(DASH)的饮食方法和世界癌症研究基金-美国癌症研究所(WCRF-AICR)评分。
    结果:在平均12年的随访中,359名参与者发展为食道癌,358人发展为胃癌。调整后,基线饮食评分的每个标准差增加与食管癌风险降低12%和胃癌风险降低17%相关.食管癌与AMED的依从性呈较强的负相关(HRQ4-vs-Q1=0.69(0.49-0.98),P-趋势=0.038)。胃癌与WCRF-AICR呈较强的负相关(HRQ4-vs-Q1=0.58(0.41-0.83),P-趋势=0.004),和DASH(HRC4-vs-C1=0.72(0.54-0.96),P-趋势=0.041)。这些关联在不同的人口亚组之间具有可比性。在该人群中,我们没有观察到HEI和AHEI评分与UGI癌症之间的显着关联。
    结论:尽管个体食物组的消费量不同,在这一高危人群中,坚持现有饮食建议(来自高收入国家)与随后发生食管癌和胃癌的风险较低相关.教育公众拥有健康的饮食习惯可能是预防高危地区UGI癌症的有效策略。
    BACKGROUND: Recent evidence suggests overall diet quality, as assessed by dietary scores, may play a role in the development of upper gastrointestinal (UGI) cancers. However, the existing dietary scores are derived from high-income countries with different dietary habits than regions with the highest burden of UGI cancers, where limited data is available. This study aimed to investigate the association between overall diet quality and risk of esophageal and stomach cancers in a high-risk region for UGI cancers.
    METHODS: We recruited 50045 individuals aged 40-75 between 2004-2008 from northeastern Iran and followed them annually through July 2020. Data on demographics, diet, and various exposures were collected using validated questionnaires. Diet quality was assessed by calculating the Healthy Eating Index (HEI), Alternative Healthy Eating Index (AHEI), Alternative Mediterranean Diet (AMED), Dietary Approaches to Stop Hypertension (DASH), and World Cancer Research Fund-American Institute for Cancer Research (WCRF-AICR) scores.
    RESULTS: During an average 12 years of follow-up, 359 participants developed esophageal cancer and 358 developed stomach cancer. After adjustments, each standard deviation increase in baseline dietary scores was associated with up to 12% reduction in esophageal cancer risk and up to 17% reduction in stomach cancer risk. Esophageal cancer showed stronger inverse associations with adherence to AMED (HRQ4-vs-Q1=0.69 (0.49-0.98), P-trend=0.038). Stomach cancer showed stronger inverse correlation with WCRF-AICR (HRQ4-vs-Q1=0.58 (0.41-0.83), P-trend=0.004), and DASH (HRC4-vs-C1=0.72 (0.54-0.96), P-trend=0.041). These associations were comparable across different population subgroups. We did not observe significant associations between HEI and AHEI scores and UGI cancers in this population.
    CONCLUSIONS: Despite the differences in consuming individual food groups, adherence to the available dietary recommendations (derived from high-income countries) was associated with lower risk for subsequent esophageal and gastric cancers in this high-risk population. Educating the public to have a healthy eating pattern might be an effective strategy towards prevention of UGI cancers in high-risk regions.
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  • 文章类型: Journal Article
    阿根廷黑白tegus(Salvatormerianae)是原产于巴西东南部的杂食性蜥蜴,乌拉圭,巴拉圭东部和阿根廷北部,是佛罗里达州和佐治亚州的入侵物种,美国。他们是机会主义者,这就是让他们拥有如此多样化的食物的原因。由于Tegus对不同环境的适应能力,Tegus引起了特别的关注。我们的目标是提供食道和胃的微观形态学基线,并将其发现与饮食和侵入能力相关联。本研究使用四种阿根廷黑色和白色被膜。我们使用标准组织学技术从食管和胃收集和处理标本,并使用苏木精和伊红(H&E)染色组织切片,高碘酸希夫(PAS),阿尔辛蓝(AB)和Verhoef\的弹性污渍。食道内衬有杯状细胞的纤毛假复层柱状上皮(PSCE)。肠相关淋巴组织(GALT)偶尔出现在食道中,而在胃中更常见。食管-胃交界处的肌层(Tm)具有明显的平滑肌,可以起到括约肌的作用。胃粘膜衬有简单的柱状上皮(SC)。腺体有颈部和深色的胃泌酸细胞。幽门括约肌具有比其他区域更多的GALT和粘液细胞。Tm外层比内层薄。大量杯状细胞的存在将支持丸剂的更快运输。观察到的短消化道和组织学特征与被皮消耗大量食物的能力一致。
    Argentine black and white tegus (Salvator merianae) are omnivorous lizards native to southeastern Brazil, Uruguay, eastern Paraguay and northern Argentina, and are invasive species in Florida and Georgia, USA. They are opportunistic feeders, which is what allow them to have such a diverse variety of foods. Tegus raised a particular concern due to their adaptive capability to different environments. Our goal was to provide a micromorphology baseline of oesophagus and stomach and correlate findings with their dietary and invasive capabilities. Four Argentine black and white tegus were used for this study. We collected and processed specimens from oesophagus and stomach using standard histological techniques and stained tissue sections using Haematoxylin and Eosin (H&E), Periodic Acid Schiff (PAS), Alcian Blue (AB) and Verhoef\'s elastic stains. The oesophagus was lined with ciliated pseudostratified columnar epithelium (PSCE) with goblet cells. Gut-associated lymphoid tissues (GALT) were present occasionally in the oesophagus and more frequently in the stomach. Tunica muscularis (Tm) of the oesophageal-gastric junction had distinct smooth muscle which could function as a sphincter. The mucosa of the stomach was lined with simple columnar epithelium (SC). The glands had neck and dark oxyntico-peptic cells. The pyloric sphincter had more GALT and mucus cells than other regions. The Tm outer layer is thinner than the inner. Presence of large number of goblet cells would support faster transit of the bolus. The short digestive tract and the histological features observed are consistent with the ability of tegus consumption of large amount of food.
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  • 文章类型: Journal Article
    UNASSIGNED: Suboptimal health status (SHS) is a reversible state between ideal health and illness and it can be effectively reversed by risk prediction, disease prevention, and personalized medicine under the global background of predictive, preventive, and personalized medicine (PPPM) concepts. More and more Chinese nurses have been troubled by psychological symptoms (PS). The correlation between PS and SHS is unclear in nurses. The purpose of current study is to investigate the prevalence of SHS and PS in Chinese nurses and the relationship between SHS and PS along with predisposing factors as well as to discuss the feasibility of improving health status and preventing diseases according to PPPM concepts in Chinese nurses.
    UNASSIGNED: A cross-sectional study was conducted with the cluster sampling method among 9793 registered nurses in Foshan city, China. SHS was evaluated with the Suboptimal Health Status Questionnaire-25 (SHSQ-25). Meanwhile, the PS of depression and anxiety were evaluated with Self-Rating Depression Scale (SDS) and Self-Rating Anxiety Scale (SAS) self-assessment questionnaires. The relationship between PS and SHS in Chinese nurses was subsequently analyzed.
    UNASSIGNED: Among the 9793 participants, 6107 nurses were included in the final analysis. The prevalence of SHS in the participants was 74.21% (4532/6107) while the symptoms of depression and anxiety were 47.62% (2908/6107) and 24.59% (1502/6107) respectively. The prevalence of SHS in the participants with depression and anxiety was significantly higher than those without the symptoms of depression (83.3% vs 16.7%, P < 0.001) and anxiety (94.2% vs 5.8%, P < 0.0001). The ratio of exercise habit was significantly lower than that of non-exercise habit (68.8% vs 78.4%, P < 0.001) in SHS group.
    UNASSIGNED: There is a high prevalence of SHS and PS in Chinese nurses. PS in Chinese nurses are associated with SHS. Physical exercise is a protective factor for SHS and PS so that the exercise should be strongly recommended as a valuable preventive measure well in the agreement with PPPM philosophy. Along with SDS and SAS, SHSQ-25 should also be highly recommended and applied as a novel predictive/preventive tool for the health measures from the perspectives of PPPM in view of susceptible population and individual screening, the predisposition to chronic disease preventing, personalization of intervention, and the ideal health state restoring.
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  • 文章类型: Journal Article
    Spontaneous bacterial peritonitis (SBP) is an acute bacterial infection of ascitic fluid without an obvious source. The prevalence of SBP in patients with cirrhosis is in the range of 10%-30%. With increasing use of antibiotics, there is a gradual shift in the causative flora of SBP from Gram-negative bacteria to Gram-positive and, more importantly, to drug-resistant bacteria. The aim of this retrospective study on 721 cases was to identify the prevalence of various organisms causing SBP along with their drug sensitivity and resistance patterns. A prevalence of 38.2% culture positivity was observed in our South Indian population. Escherichia coli was the most common pathogen isolated. Third-generation cephalosporins showed high rates of resistance, but a susceptibility of 74.5% to amikacin was found. Nonetheless, 42% of culture-positive isolates exhibited multidrug resistance, the highest rates being seen with Enterococcus faecium (64.2%) and Acinetobacter baumannii (71.4%).
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  • 文章类型: Journal Article
    Data about the effect of zinc supplementation with gluten-free diet on normalisation of plasma zinc, copper and iron in patients with coeliac disease are scanty. We evaluated the effect of zinc supplementation on serum zinc, copper and iron levels in patients with coeliac disease, by randomising 71 children newly diagnosed with coeliac disease into two groups: Group A = gluten-free diet (GFD); and Group B = gluten-free diet with zinc supplements (GFD +Zn). The rise in iron and zinc was significantly higher in the latter, but the mean rise of copper levels was slightly higher in the former, but the difference was not significant.
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  • 文章类型: Journal Article
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  • 文章类型: Evaluation Study
    BACKGROUND: The TransPyloric Shuttle™ (TPS) is a nonsurgical device that is endoscopically delivered to and removed from the stomach to treat obesity. The device consists of a large spherical bulb connected to a smaller cylindrical bulb by a flexible tether. The larger bulb prevents migration from the stomach, while the smaller bulb passes freely into the duodenum to position the TPS across the pylorus. Transpyloric positioning may delay gastric emptying, reducing caloric intake and enabling weight loss. The purpose of this feasibility study was to evaluate the safety and efficacy of the clinical procedure and device.
    METHODS: Twenty patients with a mean body mass index (BMI) of 36.0 kg/m(2) were assigned to 2 groups of 10 patients scheduled to have the device for 3 or 6 months. Primary outcomes included % excess weight loss (%EWL), % excess BMI loss (%EBMIL), % weight loss (%WL), and adverse events.
    RESULTS: Devices were deployed and retrieved in all patients with no complications. Three-month patients had mean %EWL of 25.1%, mean %EBMIL of 33.1%, and mean %WL of 8.9%. Six-month patients had mean %EWL of 41.0%, mean %EBMIL of 50.0%, and mean %WL of 14.5%. Early device removal occurred in 2 patients due to symptomatic gastric ulcerations, which resolved after device removal.
    CONCLUSIONS: The TPS is a promising technology that provides a, nonsurgical, ambulatory method for weight loss.
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  • 文章类型: Journal Article
    Digestive physiology laboratory exercises often explore the regulation of enzyme action rather than systems physiology. This laboratory exercise provides a systems approach to digestive and regulatory processes through the exploration of postprandial blood glucose levels. In the present exercise, students enrolled in an undergraduate animal physiology course select to participate in either an oral glucose tolerance test (OGTT) or one of the following three meal treatments based on typical student breakfasts: 1) high glycemic load (HGL), 2) moderate glycemic load (MGL), and 3) low glycemic load (LGL). The caloric value of the meals is 540 kcal. An Accucheck glucometer is used to determine fasted and 30-, 60-, and 120-min postprandial blood glucose levels. Students discover that postprandial glucose levels peak similarly for the OGTT and HGL group (137 ± 7.1 and 145 ± 4.7mg/dl) and remain higher than MGL and LGL groups over the 2-h period. Between sampling, vibrant discussion covering such topics as glucose and cognitive function, insulin resistance, epigenetics, and fad diets occurs. The postlaboratory assignment requires students to discuss the importance of glucose homeostasis, graphically summarize their findings, review the literature to describe results in light of published data, and describe relationships between hyperglycemia and hyperinsulinemia and disease processes. Students evaluated this laboratory as highly effective and one of the top three experiences of the course.
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