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Evaluation of A Nutrition Feeding Algorithm for Children and Adolescents Undergoing Haematopoietic Stem Cell Transplantation (HSCT) 儿童青少年造血干细胞移植(HSCT)营养喂养算法评价
Pub Date : 2022-05-24 DOI: 10.14302/issn.2379-7835.ijn-22-4190
Jodie Bartle, Elise McJannet, Natalie T Whitehead, H. Gilbertson
BackgroundNutrition support during the acute phase post allogeneic haematopoietic stem cell transplantation (HSCT) is required to optimise short- and long-term outcomes for children. An algorithm was developed and evaluated to assist clinicians to make objective and consistent enteral feeding decisions.MethodsThe algorithm was evaluated on all patients who underwent allogeneic HSCT treatment between November 2017 - February 2019.ResultsOf the 48 patients, 43 had a nasogastric tube (NGT) inserted, of which 36 patients received a hydrolysed peptide-based formula, 5 patients received a whole protein formula only and 2 patients were fed an amino acid-based formula. Parenteral nutrition (PN) was used in 41 of the patients. Eleven did not have an NGT in-situ at the commencement of HSCT. Of the remaining 37 patients, 26 followed the algorithm and 11 patients did not comply. The group of patients who did not follow the algorithm had the longest median length of stay (LOS) of 49 days. Patients receiving only EN had the lowest median LOS of 30 days. The two groups that reported better weight outcomes were those who followed the algorithm and those who were fully EN fed.ConclusionsEffective use of the HSCT feeding algorithm indicated improved patient outcomes for children undergoing HSCT, with better weight outcomes and reduced LOS. Recommendations to improve the efficacy and compliance of the algorithm include regular education/input to the oncology medical teams to better understand objective thresholds for EN and PN commencement.
背景:同种异体造血干细胞移植(HSCT)后急性期需要营养支持,以优化儿童的短期和长期预后。开发并评估了一种算法,以帮助临床医生做出客观和一致的肠内喂养决策。方法对2017年11月至2019年2月期间接受同种异体造血干细胞移植治疗的所有患者进行算法评估。结果48例患者中43例置入鼻胃管(NGT),其中36例采用水解肽配方,5例采用全蛋白配方,2例采用氨基酸配方。41例患者采用肠外营养(PN)。11个在HSCT开始时没有NGT。在剩下的37例患者中,26例遵循了该算法,11例未遵循该算法。未遵循该算法的患者组的中位住院时间最长(LOS)为49天。仅接受EN治疗的患者中位LOS最低,为30天。两组体重结果较好的分别是遵循该算法的儿童和完全EN喂养的儿童。结论有效使用HSCT喂养算法可以改善接受HSCT的儿童的患者预后,改善体重结果并降低LOS。提高算法的有效性和依从性的建议包括定期对肿瘤医疗团队进行教育/输入,以更好地了解EN和PN开始的客观阈值。
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引用次数: 0
Metabolic Complications of Diabetics Admitted in Emergency at the Souro-Sanou University Hospital Center, Bobo-Dioulasso (CHUSS) Bobo-Dioulasso (CHUSS) Souro-Sanou大学医院中心急诊糖尿病患者的代谢并发症
Pub Date : 2022-04-12 DOI: 10.14302/issn.2379-7835.ijn-22-4155
Ilboudo Alassane, Samandoulougou Rene Severin Delwende, Zoungrana Thibaut Joseph, Mbaye Salissou Seck Mbaye, Zampaligré Idrissa, Drabo Lakinapin Aboubacar, O. S. Macaire, O. S. Macaire
The diabetic is most of the time admitted in emergency for acute complications. An inventory of these complications will guide promotional programs aimed at preventing the occurrence of these complications. This study was conducted with the aim of identifying acute complications and decompensation factors in diabetics admitted in emergency to the Souro Sanou University Hospital Center (CHUSS).It was an observational study, of descriptive transversal type, with prospective collection for 4 months. It concerned diabetics admitted to the medical and surgical emergency departments of the CHUSS. A total of 90 diabetics were included in the study. The average age was 58.81 ± 14.7 years. Type 2 diabetes accounted for 85.6% of cases. The diagnosis of diabetes was known in 74.4% of cases. The reasons for consultation were dominated by impaired conscientiousness and fever, 54.4% and 50% respectively. Metabolic complications were found in 44.4% of patients. They were dominated by hypoglycemia, which accounted for 55.3% of cases. Dietary error was the main decompensation factor in cases of hypoglycemia and was reported in 71.4% of cases.Metabolic complications are common in diabetics admitted in emergency at the CHUSS. Decompensation factors are mostly preventable.
糖尿病患者多因急性并发症而入院急诊。这些并发症的清单将指导旨在预防这些并发症发生的宣传计划。本研究旨在确定苏鲁萨努大学医院中心(CHUSS)急诊科收治的糖尿病患者的急性并发症和失代偿因素。这是一项观察性研究,描述性横向型,前瞻性收集4个月。它涉及到CHUSS内科和外科急诊科收治的糖尿病患者。共有90名糖尿病患者参与了这项研究。平均年龄58.81±14.7岁。2型糖尿病占85.6%。74.4%的病例被诊断为糖尿病。咨询原因以责任心受损和发热为主,分别占54.4%和50%。代谢并发症发生率为44.4%。以低血糖为主,占55.3%。饮食错误是低血糖患者的主要失代偿因素,占71.4%。代谢并发症在CHUSS急诊收治的糖尿病患者中很常见。失代偿因素大多是可以预防的。
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引用次数: 0
What is known Today about Nutrition and Microbiota 今天我们对营养和微生物群了解多少
Pub Date : 2022-03-15 DOI: 10.14302/issn.2379-7835.ijn-22-4120
P. Mainardi, P. Striano, Michele Mainardi, P. Carta
We are experiencing years of profound cultural revolution. New insights into the microbiota upset concepts in physiology, medicine, and nutrition. The role of the microbiota for our health is increasingly evident. We are increasingly certain that our health depends on that of the microbiota, or, rather, on its strength in controlling the physiology of body organs, the mechanisms of repair and protection. It is not so much a pathogen that makes us fall ill, but a reduced ability to protect and repair ourselves from damage produced by pathogens that affect us continually. Current knowledge leads us to a new medicine aimed at curing the microbiota so that it can (come back to) take care of us. In this new medicine, food rediscovers a fundamental role, since it is the best way to communicate with the microbiota, to modulate and strengthen it. And it is curious how the most recent acquisitions bring us back to the past, to an ancient medicine, which we had forgotten after the discovery of drugs, imagined capable of acting on complex pathogenetic mechanisms.By acting, more simply, on the microbiota we can activate powerful endogenous mechanisms, which keep us healthy, when we are, more powerful than any drug we can invent. Now there is nothing left to do but apply the new knowledge.
我们正在经历多年的深刻文化大革命。微生物群的新见解颠覆了生理学、医学和营养学的概念。微生物群对我们健康的作用越来越明显。我们越来越确信,我们的健康取决于微生物群的健康,或者更确切地说,取决于它在控制身体器官的生理机能、修复和保护机制方面的力量。与其说是病原体让我们生病,不如说是我们保护和修复自身的能力在不断影响我们的病原体的伤害下下降。目前的知识使我们找到了一种新药,旨在治愈微生物群,使它们能够照顾我们。在这种新药中,食物重新发现了一个基本的作用,因为它是与微生物群沟通、调节和加强它的最佳方式。令人好奇的是,最近的发现如何将我们带回到过去,带回到一种古老的药物,在药物发现后,我们已经忘记了它,想象它能够作用于复杂的发病机制。更简单地说,通过作用于微生物群,我们可以激活强大的内源性机制,当我们健康时,它比我们发明的任何药物都更强大。现在除了应用新知识没有别的事可做了。
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引用次数: 0
Clinical Use of Peptide-Based Formula (Peptamen Junior®, Nestle) in the Paediatric Population 肽基配方奶粉(Peptamen Junior®,雀巢)在儿科人群中的临床应用
Pub Date : 2022-01-29 DOI: 10.14302/issn.2379-7835.ijn-21-4059
Kristyn Ford, H. Gilbertson
AimThere is limited published data describing the characteristics of the paediatric population prescribed semi elemental formulas. This retrospective observational audit aimed to describe the characteristics of the paediatric patients who have been prescribed a hydrolysed whey protein, medium chain triglycerides (MCT) based formula, Peptamen Junior® and the nutritional outcomes.MethodsA retrospective observation audit was completed on a cohort of patients that was prescribed a semi elemental formula between 2016 and 2019 from a single tertiary paediatric medical centre. Data variables were collated such as patient characteristics, indications and modalities of administration, duration and tolerance to the formula.ResultsData was collated on 375 patients with a median age of 6.2 years. The main underlying medical conditions were haematological/oncology (67%), gastrointestinal disorders (10.7%) and neurological conditions (9.4%). The most common indications for use were chemotherapy related side effects (36.2%), post bone marrow transplant (25.8%) and gastrointestinal symptoms (17.9%). The formula was rarely used as a sole source of nutrition, with 88% patients requiring accompanying forms of nutrition support. The majority of orders prescribed were of standard concentration (80.8%) and tolerance was recorded in 82.8% of patients.ConclusionThe semi elemental formula Peptamen Junior® appears to be well tolerated in paediatric patients with a variety of medical conditions that have complex pathologies and may have wider scope of use in a more diverse group of medical conditions than currently indicated.
目的描述半元素配方的儿科人群特征的已发表数据有限。本回顾性观察性审计旨在描述处方水解乳清蛋白,中链甘油三酯(MCT)为基础的配方,Peptamen Junior®的儿科患者的特征和营养结果。方法对2016年至2019年在一家三级儿科医疗中心使用半元素处方的患者进行回顾性观察审计。整理数据变量,如患者特征,适应症和给药方式,持续时间和对配方的耐受性。结果整理了375例患者的数据,中位年龄为6.2岁。主要的潜在疾病是血液病/肿瘤病(67%)、胃肠道疾病(10.7%)和神经系统疾病(9.4%)。最常见的适应症是化疗相关副作用(36.2%)、骨髓移植后(25.8%)和胃肠道症状(17.9%)。该配方很少被用作唯一的营养来源,88%的患者需要伴随形式的营养支持。处方中大多数处方为标准浓度(80.8%),82.8%的患者有耐受性。结论:半单质配方Peptamen Junior®在具有复杂病理的各种医疗条件的儿科患者中具有良好的耐受性,并且可能在更多样化的医疗条件组中具有比目前所指出的更广泛的使用范围。
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引用次数: 0
Colorectal Cancer in Africa: Causes, Dietary Intervention, and Lifestyle Change 非洲结直肠癌:病因、饮食干预和生活方式改变
Pub Date : 2021-10-07 DOI: 10.14302/issn.2379-7835.ijn-21-3908
O. Oluwole, Viola A. Nwachukwu Nicholas-Okpara, Elemo Gloria, D. Ibekwe, I. Eboagwu, O. Elemo, Adeyoju Olubamike Adetutu, Nnenna Efuribe
Colorectal cancer (CRC) is a menace in the global public health system. According to GLOBOCAN reports, colorectal cancer is the second most diagnosed cancer in the world with more than 1.9 million cases and 935,000 deaths in 2020 alone. Diet plays a key role in exposing humans to environmental carcinogens and anti-carcinogens, consequently mitigating or aiding in the development of various cancers. CRC is most prevalent in western countries with a high intake of saturated fats, refined carbohydrates, and processed meat. CRC was an extremely rare disease in Africa some decades ago, but the situation is fast changing. The traditional African diet consists of leafy, roots and cruciferous vegetables, fruits, roots, tubers and plantains, legumes, whole grains, and spices, all of which have been shown to possess protective effects against CRC. However, the effect of urbanization has contributed to the shift of dietary choices among the African population to consuming more ultra-processed foods with high levels of unhealthy components that have originated from colorectal cancer prevalent regions. This review evaluates the current nutritional challenges of the African diet to colorectal cancer and the potential roles of the traditional African diets and lifestyle modification in the prevention and management of colorectal cancer.
结直肠癌(CRC)是全球公共卫生系统的一大威胁。根据GLOBOCAN的报告,结直肠癌是世界上第二大确诊癌症,仅2020年就有190多万例病例和93.5万例死亡。饮食在使人类接触环境致癌物和抗癌物质方面起着关键作用,从而减轻或促进各种癌症的发展。结直肠癌在大量摄入饱和脂肪、精制碳水化合物和加工肉类的西方国家最为普遍。几十年前,结直肠癌在非洲是一种极其罕见的疾病,但这种情况正在迅速改变。传统的非洲饮食包括叶类、根类和十字花科蔬菜、水果、根类、块茎和大蕉、豆类、全谷物和香料,所有这些都被证明对结直肠癌具有保护作用。然而,城市化的影响导致非洲人口的饮食选择转向消费更多来自结直肠癌流行地区的超加工食品,这些食品含有高水平的不健康成分。这篇综述评估了目前非洲饮食对结直肠癌的营养挑战,以及传统非洲饮食和生活方式改变在预防和治疗结直肠癌中的潜在作用。
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引用次数: 0
Rosemary (Salvia rosmarinus): Health-promoting benefits and food preservative properties. 迷迭香(Salvia rosmarinus):促进健康和食品防腐性能。
Pub Date : 2021-06-24 DOI: 10.14302/issn.2379-7835.ijn-21-3874
Jacob P Veenstra, J. Johnson
Natural food preservatives in the form of herb extracts and spices are increasing in popularity due to their potential to replace synthetic compounds traditionally used as food preservatives. Rosemary (Salvia rosmarinus) is an herb that has been traditionally used as an anti-inflammatory and analgesic agent, and currently is being studied for anti-cancer and hepatoprotective properties. Rosemary also has been reported to be an effective food preservative due to its high anti-oxidant and anti-microbial activities. These properties allow rosemary prevent microbial growth while decreasing food spoilage through oxidation. Rosemary contains several classes of compounds, including diterpenes, polyphenols, and flavonoids, which can differ between extracts depending on the extraction method. In particular, the diterpenes carnosol and carnosic acid are two of the most abundant phytochemicals found in rosemary, and these compounds contribute up to 90% of the anti-oxidant potential of the herb. Additionally, several in vivo studies have shown that rosemary administration has a positive impact on gastrointestinal (GI) health through decreased oxidative stress and inflammation in the GI tract. The objective of this review is to highlight the food preservative potential of rosemary and detail several studies that investigate rosemary to improve in vivo GI health.
草药提取物和香料形式的天然食品防腐剂越来越受欢迎,因为它们有可能取代传统上用作食品防腐剂的合成化合物。迷迭香(Salvia rosmarinus)是一种传统上用作抗炎和镇痛剂的草药,目前正在研究其抗癌和保护肝脏的特性。据报道,迷迭香也是一种有效的食品防腐剂,因为它具有很高的抗氧化和抗微生物活性。这些特性使迷迭香能够防止微生物生长,同时减少食物因氧化而变质。迷迭香含有几种化合物,包括二萜、多酚和类黄酮,根据提取方法的不同,这些化合物在不同的提取物中会有所不同。特别是,二萜鼠尾草醇和鼠尾草酸是在迷迭香中发现的两种最丰富的植物化学物质,这些化合物贡献了90%的草药抗氧化潜力。此外,一些体内研究表明迷迭香通过减少胃肠道氧化应激和炎症对胃肠道健康有积极影响。这篇综述的目的是强调迷迭香的食品防腐潜力,并详细介绍了迷迭香改善体内胃肠道健康的几项研究。
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引用次数: 13
A Review on Lab Scale Cultivation of Calocybe Indica and Its Medicinal Value 实验室规模栽培甘草酸及其药用价值的研究进展
Pub Date : 2020-12-09 DOI: 10.14302/ISSN.2379-7835.IJN-20-3406
Priya Petchimuthu, Ramya Petchimuthu, A. Ayyappan, V. Mariappan, Revathy Palanipandi, B. Ramaiah
Calocybe indica, a tropical edible mushroom and it is popular because it has good nutritive value and it can be cultivated commercially on a large scale. Mushrooms are in the great demand everywhere and hold a unique place in the world today due to their typical taste and rich in protein, vitamins, minerals. Other than nutritional value, it is also playing a major role in medicinal field. Milky mushroom is known to have anti-oxidant and anti-cancer effect. Paddy in particular used as a substrate in Milky mushroom considered as inexpensive and it is a popular variety among people because of its distinct flavor, higher protein content and shorter cropping duration compared to other cultivated mushrooms. The present study designed to explain how the mushroom was cultivated using paddy straw in India.
Calocybe indica是一种热带食用菌,因其具有良好的营养价值和可大规模商业化栽培而广受欢迎。蘑菇在世界各地都有很大的需求,由于其典型的味道和丰富的蛋白质、维生素、矿物质,蘑菇在当今世界上占有独特的地位。除了营养价值,它在医药领域也发挥着重要作用。乳香菇具有抗氧化和抗癌作用。特别是稻谷,作为乳菇的基质,被认为价格低廉,并且由于其独特的风味,较高的蛋白质含量和与其他栽培蘑菇相比较短的种植期而受到人们的欢迎。目前的研究旨在解释如何在印度使用水稻秸秆种植蘑菇。
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引用次数: 0
Dietary Intake Patterns of Alcoholics; A Case Study of Selected Rehabilitation Centers in Kenya 酗酒者的饮食摄入模式肯尼亚选定康复中心的个案研究
Pub Date : 2020-10-06 DOI: 10.14302/ISSN.2379-7835.IJN-20-3377
L. Mutuli, P. Bukhala, G. Nguka
IntroductionSub-optimal dietary intake patterns have a major detrimental impact on the nutritional status of an alcoholic. These patterns exacerbate the status of alcoholism and the functioning of the alcoholic’s body.ObjectiveThis study aimed to examine alcoholic’s dietary intake patterns.MethodsA cross-sectional study was conducted on 204 alcoholics undergoing alcohol rehabilitation in selected rehabilitation centers. A 24 hour food recall and food frequency questionnaire was used to assess dietary intake of the respondents. Factor analysis of food items and groups, cluster analysis of dietary intake patterns, and multivariate regressions were carried out.ResultsThree dietary intake patterns were identified among alcoholics namely a low calorie intake (described mainly by consumption of plant-based foods); a composite intake (distinguished by adequate consumption of both plant-based and animal-based foods) and a high calorie intake (characterized by high consumption of animal-based foods).ConclusionOptimal dietary intake promotion programs are needed to address the dietary intakes of recuperating alcoholics under rehabilitation to help prevent malnutrition and other associated comorbidities.
不理想的饮食摄入模式对酗酒者的营养状况有重大的有害影响。这些模式加剧了酗酒的状况和酗酒者的身体功能。目的研究饮酒者的饮食摄入模式。方法对204例在康复中心接受酒精康复治疗的酗酒者进行横断面研究。采用24小时食物召回问卷和食物频率问卷对调查对象的膳食摄入量进行评估。对食物种类和类别进行因子分析,对饮食摄入模式进行聚类分析,并进行多变量回归分析。结果在酗酒者中确定了三种饮食摄入模式:低热量摄入(主要通过食用植物性食物来描述);复合摄入(以充分食用植物性和动物性食物为特征)和高热量摄入(以大量食用动物性食物为特征)。结论需要优化膳食摄入促进方案,以解决康复期戒酒者的膳食摄入问题,防止营养不良及其他相关合并症的发生。
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引用次数: 0
Nutritional Status of Inmates in the Central Prison of Mbuji-Mayi, Democratic Republic of Congo 刚果民主共和国Mbuji-Mayi中央监狱囚犯的营养状况
Pub Date : 2020-09-03 DOI: 10.14302/issn.2379-7835.ijn-21-3926
G. D. Coninck, Léon Okenge Ngongo, F. Ilunga, A. Albert, D. Giet, M. Kalonji
BackgroundThe nutritional situation in prisons of developing countries and the health status of inmates remain a major human rights concern. The objective of the study was to assess the nutritional status of inmates jailed in a prison of the Democratic Republic of Congo (DRC).MethodsThis cross-sectional study was conducted over a 4-month period in the Central Prison of Mbuji-Mayi, DRC. Three hundred inmates were selected according to the Malnutrition Universal Screening Tool (MUST). Severe malnutrition was defined according to Buzby index and Nutritional Risk Index (NRI). Data were analyzed by Stata™ (version12.0).ResultsThe inmates were aged between 18 and 70 years and primarily males (88.7%). Of them, 24% were suffering from severe malnutrition and 62% of moderate malnutrition as based on the NRI. At the time of study, 88% of inmates were incarcerated for more than 6 months. Multivariate logistic regression analysis showed that factors independently associated with severe malnutrition were incarceration of more than 6 months (OR=5.1; 95% CI (1.5-17.4)), origin of food (prison vs. family or NGO) (OR=4.7; 95% CI (1.6-13.8)) presence of tuberculosis, human immunodeficiency virus and/or intestinal infections (OR=2.6; 95% CI (1.4-4.7)).ConclusionsThe nutritional situation in the Central Prison of Mbuji-Mayi is precarious. There is urgent need to supply enough nutrient-rich food to improve health of inmates.
发展中国家监狱的营养状况和囚犯的健康状况仍然是一个主要的人权问题。该研究的目的是评估刚果民主共和国(DRC)监狱中被监禁囚犯的营养状况。方法在刚果民主共和国Mbuji-Mayi中央监狱进行了为期4个月的横断面研究。根据营养不良普遍筛查工具(MUST)选择了300名囚犯。根据busby指数和营养风险指数(NRI)确定严重营养不良。使用Stata™(version12.0)分析数据。结果在押人员年龄在18 ~ 70岁之间,以男性为主,占88.7%。根据NRI,其中24%患有严重营养不良,62%患有中度营养不良。在研究期间,88%的囚犯被监禁超过6个月。多因素logistic回归分析显示,与严重营养不良相关的独立因素为监禁6个月以上(OR=5.1;95% CI(1.5-17.4)),食物来源(监狱vs.家庭或非政府组织)(or =4.7;95% CI(1.6-13.8))存在结核病、人类免疫缺陷病毒和/或肠道感染(or =2.6;95% ci(1.4-4.7))。结论Mbuji-Mayi中心监狱营养状况不稳定。迫切需要提供足够的营养丰富的食物,以改善囚犯的健康。
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引用次数: 1
Use of Microfluidic Assays to Develop Reliable and Economic Nucleic Acid Application Technologies, Employing MicroRNAs for the Diagnostic Screening of Colon Cancer in Human Stool in Low-Resource Settings 利用微流控分析开发可靠和经济的核酸应用技术,利用MicroRNAs在低资源环境下诊断筛查人类粪便中的结肠癌
Pub Date : 2020-06-09 DOI: 10.14302/issn.2379-7835.ijn-19-3123
F. Ahmed, M. Gouda, Nancy C. Ahmed
Isolation methods that employ readily-available inexpensive supplies on the open market, which are reliable, as well as economical, such as nucleic acid amplification techniques (NAAT) based on microfluidic technology in low-resource research settings (LRRS) that meets the ASSURED guidelines are essential to develop a noninvasive diagnostic colon cancer screen in stool using micro(mi)RNA molecules. A combination of a microfluidic-based MiRNA stool test with a reliable rolling circle amplification/detection method applied to the quantification of miRNA molecules, result in an affordable sensitive and specific isothermal method for the noninvasive quantitative detection of miRNAs in LRRS. Scientists and engineers have become interested in miRNAs, and they have intensified their efforts to apply emerging simple detection tools to the important bioanalytical challenge of quantifying these small 18-26 nt long molecules. Some of the proposed approaches incorporate novel material, such as simple centrifuges and methods based on microfluidic technology, while others utilize the interesting biological properties of these molecules, such as forming branched RCA structures, allowing for the detection of these biomarker molecules at an attomolar "aM" concentration level, using low cost extraction and isothermal amplification methods in LRRS. We have been interested in studying colorectal cancer (CRC) because it is the 3rd most common malignancy worldwide, and stool can be obtained noninvasively from the patients. We have focused in this research on colon cancer (CC) because it is more common in the USA than rectal cancer (RC). The innovation of our approach lies in the exploratory use of an affordable, quantitative miRNA profiling in noninvasive stool samples in LRRS, whose extracted fragile total RNA is stabilized shortly after excretion from stool by commercially available kits, so it does not ever fragment, followed by quantitative standardized analytical tests that are neither labor intensive, nor require expensive instrumentation, in order to develop apanel of novel miRNA genes for the noninvasive diagnostic screening of early left and right sporadic colon cancers, more economically, and with higher sensitivity and specificity than any other colon cancer screening test currently available on the market. To show the clinical sensitivity and specificity of the proposed quantitative miRNA test using simple methodologies in LRRS,the miRNA results are to be correlated with FOBT, colonoscopy, and pathology data. Standardization establishes test’s performance criteria (sample selection, optimal sample running conditions, preservation and storage), in order to ensure that the assay will perform the same way in any laboratory, by any trained personnel, anywhere in low-resource laboratory settings worldwide.
采用公开市场上易于获得的廉价供应品的分离方法,既可靠又经济,例如在低资源研究环境(LRRS)中基于微流体技术的核酸扩增技术(NAAT),符合ASSURED指南,对于开发使用微(mi)RNA分子在粪便中进行无创诊断结肠癌筛查至关重要。将基于微流体的MiRNA粪便检测与可靠的滚动圈扩增/检测方法相结合,用于MiRNA分子的定量,产生了一种经济、敏感、特异的等温方法,用于lrs中MiRNA的无创定量检测。科学家和工程师们已经对mirna产生了兴趣,他们已经加强了他们的努力,将新兴的简单检测工具应用于量化这些18- 26nt长的小分子的重要生物分析挑战。一些提议的方法结合了新材料,如简单的离心机和基于微流控技术的方法,而另一些则利用这些分子的有趣的生物学特性,如形成分支RCA结构,允许在原子摩尔“aM”浓度水平上检测这些生物标记分子,在LRRS中使用低成本提取和等温扩增方法。我们一直对研究结直肠癌(CRC)很感兴趣,因为它是世界上第三大最常见的恶性肿瘤,并且可以从患者身上无创性地获得粪便。我们的研究重点是结肠癌(CC),因为它在美国比直肠癌(RC)更常见。我们方法的创新之处在于在LRRS的非侵入性粪便样本中探索性地使用价格合理的定量miRNA分析,其提取的易碎总RNA在粪便排泄后不久由市买试剂盒稳定,因此它不会破碎,然后进行定量标准化分析测试,既不需要劳动密集型,也不需要昂贵的仪器。为了开发一组新的miRNA基因,用于早期左、右散发性结肠癌的无创诊断筛查,比目前市场上任何其他结肠癌筛查方法都更经济,并且具有更高的敏感性和特异性。为了显示在LRRS中使用简单方法所提出的定量miRNA测试的临床敏感性和特异性,miRNA结果将与FOBT、结肠镜检查和病理数据相关联。标准化建立了检测的性能标准(样品选择,最佳样品运行条件,保存和储存),以确保在任何实验室,任何训练有素的人员,在全球任何地方资源匮乏的实验室环境中,检测都能以相同的方式进行。
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引用次数: 1
期刊
International Journal of Nutrition Sciences
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