gluten

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  • 文章类型: Journal Article
    在过去的三十年中,已经对诊断为自闭症谱系障碍(ASD)的儿科患者进行了许多治疗和饮食干预措施。我们的介入研究旨在评估无麸质的有效性,一组埃及ASD儿童的无酪蛋白(GFCF)饮食。
    本临床试验是前瞻性的12个月,开放标签,病例对照介入研究。这项研究纳入了36名新诊断且未接受任何精神病或康复治疗的ASD儿童。将患者随机分为两组:A组,接受了GFCF饮食,B组,作为对照组,在12个月内不限于含有麸质和酪蛋白的食物。所有患者均随访1年。
    在A组中实施GFCF饮食后,随访6个月和1年后,与B组相比,CARS评分显著改善.
    引入GFCF饮食对自闭症儿童可能是有帮助和有希望的。关于GFCF饮食有效性的确凿证据仍然是一个有争议的话题。尽管如此,我们的研究提供了一些证据支持其对ASD儿童的潜在益处.建议未来对GFCF饮食的研究采用更复杂的研究设计,纳入一致的基线测量,可以有效评估这些干预措施对ASD患者的治疗效果。
    UNASSIGNED: Numerous therapeutic and dietary interventions have been examined in the last thirty years for pediatric patients diagnosed with autism spectrum disorder (ASD). Our interventional study aimed to assess the effectiveness of the gluten-free, casein-free (GFCF) diet in a cohort of Egyptian children with ASD.
    UNASSIGNED: The present clinical trial was conducted as a prospective 12-month, open-label, case-controlled interventional study. Thirty-six ASD children who were newly diagnosed and had not taken any prior psychiatric or rehabilitation therapy were included in this study. The patients were randomly assigned into two groups: group A, which received the GFCF diet, and group B, which served as the control group and was not restricted to food containing gluten and casein for 12 months. All patients were followed up for 1 year.
    UNASSIGNED: Following the implementation of the GFCF diet in group A, significant improvements in CARS scores were observed compared to group B after 6-month and 1-year follow-up periods.
    UNASSIGNED: The introduction of the GFCF diet could be helpful and promising for autistic children. Conclusive evidence regarding the effectiveness of the GFCF diet remains a subject of controversy. Nonetheless, our study contributes some evidence supporting its potential benefits for children with ASD. It is recommended that future research on the GFCF diet employ a more sophisticated research design, incorporating a consistent baseline measure that can effectively assess the therapeutic effects of these interventions for individuals with ASD.
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  • 文章类型: Journal Article
    背景:超短乳糜泻(USCD)定义为仅存在于十二指肠球部(D1)并伴有腹腔血清学阳性的绒毛萎缩。我们提出了第一个,多中心,USCD患者的国际研究。
    方法:从10家三级医院(6家来自欧洲,2来自亚洲1名来自北美,1名来自澳大利亚),并与年龄匹配和性别匹配的常规乳糜泻患者进行比较。
    结果:USCD患者(n=137,中位年龄27岁,IQR21-43岁;73%的女性)比传统乳糜泻患者年轻(27岁vs38岁,分别,p<0.001)。USCD患者在胃镜检查时的免疫球蛋白A-组织转谷氨酰胺酶(IgA-tTG)滴度低于常规乳糜泻(1.8×正常上限(ULN)(IQR1.1-5.9)vs12.6×ULN(IQR3.3-18.3),p<0.001)。USCD患者的症状总数相同(中位数3(IQR2-4)vs3(IQR1-4),p=0.875)。USCD患者铁缺乏较少(41.8%vs22.4%,p=0.006)。USCD和常规乳糜泻都具有相同的上皮内淋巴细胞免疫表型染色模式;CD3和CD8阳性,但CD4阳性。在开始无麸质饮食(GFD)(中位数为1181天,IQR:440-2160天)的随访中,USCD和年龄匹配和性别匹配的对照组的IgA-tTG滴度均有类似的降低(0.5ULN(IQR0.2-1.4)对0.7ULN(IQR0.2-2.6),p=0.312)。95.7%的USCD患者报告其症状有临床改善。
    结论:USCD患者更年轻,有类似的症状负担和受益于GFD。这项研究支持建议将D1采样作为内窥镜乳糜泻诊断检查的一部分。
    Ultra-short coeliac disease (USCD) is defined as villous atrophy only present in the duodenal bulb (D1) with concurrent positive coeliac serology. We present the first, multicentre, international study of patients with USCD.
    Patients with USCD were identified from 10 tertiary hospitals (6 from Europe, 2 from Asia, 1 from North America and 1 from Australasia) and compared with age-matched and sex-matched patients with conventional coeliac disease.
    Patients with USCD (n=137, median age 27 years, IQR 21-43 years; 73% female) were younger than those with conventional coeliac disease (27 vs 38 years, respectively, p<0.001). Immunoglobulin A-tissue transglutaminase (IgA-tTG) titres at index gastroscopy were lower in patients with USCD versus conventional coeliac disease (1.8×upper limit of normal (ULN) (IQR 1.1-5.9) vs 12.6×ULN (IQR 3.3-18.3), p<0.001).Patients with USCD had the same number of symptoms overall (median 3 (IQR 2-4) vs 3 (IQR 1-4), p=0.875). Patients with USCD experienced less iron deficiency (41.8% vs 22.4%, p=0.006).Both USCD and conventional coeliac disease had the same intraepithelial lymphocytes immunophenotype staining pattern; positive for CD3 and CD8, but not CD4.At follow-up having commenced a gluten-free diet (GFD) (median of 1181 days IQR: 440-2160 days) both USCD and the age-matched and sex-matched controls experienced a similar reduction in IgA-tTG titres (0.5 ULN (IQR 0.2-1.4) vs 0.7 ULN (IQR 0.2-2.6), p=0.312). 95.7% of patients with USCD reported a clinical improvement in their symptoms.
    Patients with USCD are younger, have a similar symptomatic burden and benefit from a GFD. This study endorses the recommendation of D1 sampling as part of the endoscopic coeliac disease diagnostic workup.
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  • 文章类型: Case Reports
    乳糜泻(CeD)是一种由遗传易感人群食用含麸质食物引起的免疫疾病。CeD,除了消化系统疾病,是一种多系统疾病。如果未经治疗,它可能是一种危险的疾病,并导致发病甚至死亡。目前,唯一的治疗选择是终身无麸质饮食(GFD),所有作者都推荐了这个方案。据我们所知,在受影响的患者中,很少有关于GFD疾病完全缓解和恢复正常饮食的报道。在这份报告中,我们描述了五名CeD患者的临床症状完全缓解,组织病理学变化,和含麸质饮食的血清学。根据组织转谷氨酰胺酶抗体(TTGIgA)阳性和十二指肠活检中典型的组织病理学变化,所有患者均患有CeD,而GFD方案的症状完全消失。所有患者均接受GFD平均4(±0.54)年。总之,这项研究表明,一些在成年期确诊的CeD患者在长期接受含麸质饮食后可以恢复正常的粘膜,而不会复发CeD的任何临床或生物学症状。
    Celiac disease (CeD) is an immune condition induced by the consumption of gluten-containing foods in genetically-predisposed persons. CeD, in addition to digestive disease, is a multisystem disorder. If untreated, it is potentially can be a dangerous disorder and lead to morbidity and even mortality. At present, the only treatment option is a lifelong gluten-free diet (GFD), and all authors recommended this regimen. To the best of our knowledge, there are rare reports of the complete remission of disorder on GFD and reintroduction of a normal diet in affected patients. In this report, we describe five patients with CeD who developed complete remission of clinical symptoms, histopathological changes, and serology on a gluten-containing diet. All patients had CeD based on a positive tissue transglutaminase antibody (TTG IgA) and typical histopathological changes in duodenal biopsy with the complete disappearance of symptoms on the GFD regimen. All patients followed GFD for a mean 4 (±0.54) years. In conclusion, this study has shown that some CeD patients diagnosed in adulthood can recover a normal mucosa after a long period of the gluten-containing diet without relapsing any clinical or biological symptoms of CeD.
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  • 文章类型: Journal Article
    温度升高,热浪,年降水量的减少都是气候变化(CC)的表现,强烈影响南欧的面包小麦(TriticumaestivumL.)谷物产量。温度是植物物候发育的主要驱动力,这些变化也对小麦物候有影响,可能对谷物质量产生影响,和谷蛋白积累。这里,通过在博洛尼亚平原(意大利北部)的案例研究,我们评估了CC在该地区的影响,对面包小麦物候发育的影响,以及对谷物面筋品质的影响。自1952年以来,该地区的年平均气温呈上升趋势,1989年确定了一个断点,从12.7℃上升到14.1℃,伴随着干旱增加的信号,即,增加地下水位深度。在断点前后的两个15年期间比较了面包小麦的物候发展,即,1952-1966年(过去),2006-2020年(本期),最新的特点是干旱和气温升高。与过去时期相比,当前时期观察到达到主要物候阶段所需的时间显着缩短,最终缩短了整个生命周期。这种减少,以及较高的温度状态,影响谷蛋白在灌浆过程中的积累,如出现的那样,分析了在温度断点之前和之后在该地区收获的相同品种的谷物样品中的面筋成分。特别是,面筋聚合物的比例(即,麦醇溶蛋白,高分子量和低分子量谷蛋白,及其比率)与籽粒灌浆过程中积累的累积生长天数(CGDDs)具有很强的显着相关性。在此期间CGDD值较高,典型的南欧CC,考虑到更高的温度和更快的谷物填充,与麦醇溶蛋白相关,高分子量谷蛋白,以及它们与低分子量谷蛋白的比例。总之,本文报告,数据可能有助于评估CC对小麦物候和品质的影响,代表了一种用于预测目的和农民决策支持系统的工具,以及可以指导未来品种创新的育种选择。
    Increasing temperatures, heat waves, and reduction of annual precipitation are all the expressions of climate change (CC), strongly affecting bread wheat (Triticum aestivum L.) grain yield in Southern Europe. Being temperature the major driving force of plants\' phenological development, these variations also have effects on wheat phenology, with possible consequences on grain quality, and gluten protein accumulation. Here, through a case study in the Bolognese Plain (North of Italy), we assessed the effects of CC in the area, the impacts on bread wheat phenological development, and the consequences on grain gluten quality. The increasing trend in mean annual air temperature in the area since 1952 was significant, with a breakpoint identified in 1989, rising from 12.7 to 14.1°C, accompanied by the signals of increasing aridity, i.e., increase in water table depth. Bread wheat phenological development was compared in two 15-year periods before and after the breakpoint, i.e., 1952-1966 (past period), and 2006-2020 (present period), the latest characterized by aridity and increased temperatures. A significant shortening of the chronological time necessary to reach the main phenological phases was observed for the present period compared to the past period, finally shortening the whole life cycle. This reduction, as well as the higher temperature regime, affected gluten accumulation during the grain-filling process, as emerged analyzing gluten composition in grain samples of the same variety harvested in the area both before and after the breakpoint in temperature. In particular, the proportion of gluten polymers (i.e., gliadins, high and low molecular weight glutenins, and their ratio) showed a strong and significant correlation with cumulative growing degree days (CGDDs) accumulated during the grain filling. Higher CGDD values during the period, typical of CC in Southern Europe, accounting for higher temperature and faster grain filling, correlated with gliadins, high molecular weight glutenins, and their proportion with low molecular weight glutenins. In summary, herein reported, data might contribute to assessing the effects of CC on wheat phenology and quality, representing a tool for both predictive purposes and decision supporting systems for farmers, as well as can guide future breeding choices for varietal innovation.
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  • 文章类型: Journal Article
    许多类型的烘焙食品牢固地植根于不同国家许多人的饮食习惯。尽管在改善铣削方面取得了长足的进步,揉捏,烘烤,由于缺乏必要的研究,需要采取进一步措施来了解储存时间和环境储存条件的影响,从而激发了这项工作。这项研究的目的是评估储存时间的影响,使用单向方差分析,和环境储存条件(环境温度和湿度),使用MOLS分析,关于面粉成分,面团流变学,和饼干的特点。测试了七个水平的储存时间:T0(对照),T1、T2、T3、T4、T5和T6。结果表明,面粉贮藏时间显著提高了面团的韧度(P)和曲线构型比(P/L),并减少饼干体积(最佳在T0)。然而,2-3周的储存突出了变形能(W)的显着增加,与发酵产品的技术成功密切相关的基本肺泡描记器参数。为W找到的最佳方法可能被认为是理解存储时间影响的一大步,确认小麦粉在储存两到三周后可以达到最佳性能,特别是对于W.此外,这些信息可能是有用的,不仅用于饼干生产,但也适用于面包和烘焙产品(和,因此,整个面包店行业)。MOLS分析强调,面团流变学和饼干特性主要受面粉成分(主要来自淀粉含量)而不是环境储存参数的影响。总之,为了优化饼干的特性,有必要通过选择最合适的研磨技术并仔细管理操作参数来使用低含量受损淀粉的面粉。
    Many types of baked goods are firmly rooted in the food habits of many people in different countries. Although there have been great strides in improving milling, kneading, and baking, given the lack of essential studies, further steps forward need to be taken to understand the effects of storage time and environmental storage conditions, thus motivating this work. The aim of this study is to assess the effects of storage time, using one-way ANOVA, and environmental storage conditions (environmental temperature and humidity), using MOLS analysis, on flour composition, dough rheology, and biscuit characteristics. Seven levels of storage time were tested: T0 (control), T1, T2, T3, T4, T5, and T6. The results showed that flour storage time significantly increased dough tenacity (P) and curve configuration ratio (P/L), and decreased the biscuit volume (best at T0). However, 2-3 weeks of storage highlighted a significant increase in deformation energy (W), an essential alveograph parameter that is closely correlated to the technological success of leavened products. This optimum found for W might be considered as a great stride in understanding the effects of storage time, confirming that wheat flour can reach its optimal performance after two-three weeks of storage, in particular for W. Moreover, this information could be useful, not only for biscuits production, but also for bread and bakery products (and, thus, the entire bakery industry). MOLS analysis highlighted that dough rheology and biscuit characteristics are mainly affected by flour composition (primarily from starch content) rather than environmental storage parameters. In conclusion, to optimize the biscuit characteristics, it is necessary to use flours with a low content of damaged starch by selecting the most suitable milling technique and carefully managing the operative parameters.
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  • 文章类型: Case Reports
    Celiac disease is an immune mediated enteropathy in susceptible individuals as a response to gluten containing diets based on wheat, oat, rye and maize. It clinically presents with malabsorption syndrome along with a myriad of extraintestinal manifestations such as anemia, osteoporosis, dermatitis herpetiformis, peripheral neuropathies, ataxia and cognitive impairment. Although the prevalence of these extraintestinal features range from 1 to 15% in these patients, their presence in the absence of intestinal manifestations is very rare. Here we report the case of a middle aged female diagnosed with celiac disease with coexisting gluten sensitive ataxia in the absence of gastrointestinal symptoms.
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  • 文章类型: Journal Article
    背景:乳糜泻(CD)是一种非常普遍(约1%)的疾病,据称在80%以上的病例中由于非典型症状或无症状疾病而未被诊断。目前,目前尚不清楚全科医生如何处理(疑似)CD。
    目的:本研究旨在更好地了解与CD相关的全科医生的诊断方法和临床推理过程,同时解决诊断缺陷。
    方法:带有案例插图的问卷调查,以评估知识,开发了全科医生对CD的诊断推理模式和实践。它是通过两个大城市的学术GP研究网络(包括1500多个GP)和农村地区的较小实践发送的。问卷由七个背景问题组成,与四个案例小插曲有关的13个问题和六个与CD有关的其他问题。
    结果:收到106名全科医生的回复。对CD危险因素的了解和对高危人群的适当检测是有限的。22%的人会完全根据血清学诊断成人的CD,没有组织病理学证实。总的来说,99%的人会将新诊断的患者转介给营养师以开始无麸质饮食(GFD)。在没有症状的情况下,只有33%的人会启动GFD。
    结论:这项研究的结果使我们对全科医生遇到与麸质相关的主诉患者的诊断过程有了深入的了解。多种血清学测试是可用的和使用的,而阳性血清学检测并不总是通过胃十二指肠活检来确认诊断。大多数全科医生会将有症状的CD患者转介给营养师进行GFD。
    BACKGROUND: Coeliac disease (CD) is a highly prevalent (∼1%) disease that allegedly remains undiagnosed in over 80% of the cases because of atypical symptoms or silent disease. Currently, it is unknown how GPs deal with (suspected) CD.
    OBJECTIVE: This study aimed to better understand the diagnostic approach and the clinical reasoning process of GPs concerning CD and concurrently address diagnostic pitfalls.
    METHODS: A questionnaire with case vignettes to assess the knowledge, diagnostic reasoning pattern and practice for CD by GPs was developed. It was sent through academic GP research networks (encompassing over 1500 GPs) in two large cities and to smaller practices in rural areas. The questionnaire was composed of seven background questions, 13 questions related to four case vignettes and six additional CD-related questions.
    RESULTS: Responses were received from 106 GPs. Knowledge on risk factors for CD and appropriate testing of at-risk populations was limited. Twenty-two percent would diagnose CD in adults exclusively based on serology, without histopathological confirmation. In total, 99% would refer a newly diagnosed patient to a dietitian to initiate a gluten-free diet (GFD). In the absence of symptoms, only 33% would initiate a GFD.
    CONCLUSIONS: The results of this study have given us insight into the diagnostic process of GPs encountering patient with gluten-related complaints. Multiple serology test is available and used, while a positive serology test is not always followed up by a gastroduodenal biopsy to confirm the diagnosis. Most GPs would refer a symptomatic CD patient to a dietician for a GFD.
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  • 文章类型: Journal Article
    乳糜泻由含有免疫原性表位的抗消化谷蛋白肽激活。面团发酵是降低食物中这些肽浓度的潜在策略。然而,我们目前对部分酸面团发酵对免疫原性面筋的影响知之甚少。这项研究检查了单个酸面团培养物(代表公众可能食用的那些)对免疫原性面筋肽消化的影响。通过INFOGEST方案消化面团面包。在整个消化过程中,定量和发现质谱用于模拟关键免疫原性肽和新肽的动力学释放曲线,而ELISA检测了谷蛋白的致敏性。还进行了宏观结构研究。面团发酵改变了蛋白质结构,体外消化率,和免疫原性肽释放曲线。有趣的是,发酵并没有降低总免疫原性肽的浓度,但改变了所选免疫原性肽的体外消化谱。这项工作表明,部分酸面团发酵可以改变免疫原性麸质消化,并且是第一个研究酸面团面包中免疫原性面筋肽的体外动力学特征的研究。
    Celiac disease is activated by digestion-resistant gluten peptides that contain immunogenic epitopes. Sourdough fermentation is a potential strategy to reduce the concentration of these peptides within food. However, we currently know little about the effect of partial sourdough fermentation on immunogenic gluten. This study examined the effect of a single sourdough culture (representative of those that the public may consume) on the digestion of immunogenic gluten peptides. Sourdough bread was digested via the INFOGEST protocol. Throughout digestion, quantitative and discovery mass spectrometry were used to model the kinetic release profile of key immunogenic peptides and profile novel peptides, while ELISA probed the gluten\'s allergenicity. Macrostructural studies were also undertaken. Sourdough fermentation altered the protein structure, in vitro digestibility, and immunogenic peptide release profile. Interestingly, sourdough fermentation did not decrease the total immunogenic peptide concentration but altered the in vitro digestion profile of select immunogenic peptides. This work demonstrates that partial sourdough fermentation can alter immunogenic gluten digestion, and is the first study to examine the in vitro kinetic profile of immunogenic gluten peptides from sourdough bread.
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  • 文章类型: Journal Article
    虽然乳糜泻(CD)是一种主要累及肠道的自身免疫性疾病,越来越多的证据表明,相当数量的患者表现出神经功能缺损。大约40%的具有神经系统表现的乳糜泻患者具有针对神经组织转谷氨酰胺酶6(tTG6)的循环抗体。虽然早期诊断和严格遵守无麸质饮食(GFD)已被建议预防神经功能障碍,需要更好的治疗策略来改善整体生活质量.微生物群-肠-脑轴的失调,抗TTG6抗体的存在,表观遗传机制与发病机制有关。循环或肠来源的细胞外结构以及包括生物分子缩合物和细胞外囊泡也可能有助于疾病的发病机理。有几种途径可以塑造CD患者的肠道稳态失调,非乳糜泻谷蛋白敏感性(NCGS)和/或神经变性。除了GFD和益生菌,营养食品,如植物和合成大麻素,代表了一种新的方法,可以塑造宿主微生物组以获得更好的预后结果。最后,我们为涉及非人灵长类动物(NHP)的潜在未来临床前研究提供了数据驱动的基本原理,以调查营养品的作用,如植物和合成大麻素,单独或与GFD组合以预防/减轻膳食麸质诱导的神经变性。
    Although celiac disease (CD) is an autoimmune disease that primarily involves the intestinal tract, mounting evidence suggests that a sizeable number of patients exhibit neurological deficits. About 40% of the celiac patients with neurological manifestations have circulating antibodies against neural tissue transglutaminase-6 (tTG6). While early diagnosis and strict adherence to a gluten-free diet (GFD) have been recommended to prevent neurological dysfunction, better therapeutic strategies are needed to improve the overall quality of life. Dysregulation of the microbiota-gut-brain axis, presence of anti-tTG6 antibodies, and epigenetic mechanisms have been implicated in the pathogenesis. It is also possible that circulating or gut-derived extracellular structures and including biomolecular condensates and extracellular vesicles contribute to disease pathogenesis. There are several avenues for shaping the dysregulated gut homeostasis in individuals with CD, non-celiac gluten sensitivity (NCGS) and/or neurodegeneration. In addition to GFD and probiotics, nutraceuticals, such as phyto and synthetic cannabinoids, represent a new approach that could shape the host microbiome towards better prognostic outcomes. Finally, we provide a data-driven rationale for potential future pre-clinical research involving non-human primates (NHPs) to investigate the effect of nutraceuticals, such as phyto and synthetic cannabinoids, either alone or in combination with GFD to prevent/mitigate dietary gluten-induced neurodegeneration.
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  • 文章类型: Case Reports
    We present the case of a 12-year-old girl with severe pernio as the sole clinical presentation of celiac disease (CD), without associated gastrointestinal symptoms. Lesions greatly improved once a gluten free diet was initiated. At 5-year follow-up, she remains in clinical remission throughout the year with no pharmacological treatment, without skin lesions flare-up in the winter months.
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