microbiome signature

  • 文章类型: Journal Article
    益生菌是活的微生物补充剂,当以足够的量施用时,其改善宿主动物中的微生物平衡。它们在缓解与胃肠道相关的许多疾病的症状中起着重要作用,例如,坏死性小肠结肠炎(NEC),抗生素相关性腹泻,复发性艰难梭菌结肠炎,幽门螺杆菌感染,和炎症性肠病(IBD)。在这篇叙述性评论中,作者旨在评估不同益生菌制剂在18岁以下儿科人群胃肠道疾病治疗中的作用,并强调选择用于该人群的益生菌制剂的主要考虑因素.
    作者从成立到2022年7月24日搜索了PubMed和Clinicaltrials.gov,没有任何限制。使用迭代过程,作者随后通过手工检索检索到的文章中包含的引文以及相关的系统综述和荟萃分析来添加论文.
    在这项研究中,分析并比较了单生物和复合益生菌治疗18岁或以下儿科患者胃肠道疾病的有效性。共有39项研究进行了审查,并根据积极和消极的结果进行了分类。与安慰剂相比,导致25项单一生物研究和14项复合益生菌研究。研究的胃肠道疾病包括NEC,急性胃肠炎(AGE),急性腹泻,溃疡性结肠炎(UC),和其他人。结果表明,益生菌可有效治疗18岁以下儿童的各种胃肠道疾病,单生物益生菌在大多数研究中显示出显著的积极结果。和复合益生菌在所有分析的研究中显示出积极的结果,两种类型的负面结果发生率都很低。
    本研究得出的结论是,单生物和复合益生菌是治疗儿科人群胃肠道疾病的有效补充疗法。因此,医疗保健专业人员应考虑在标准治疗方案中使用益生菌,和教育监护人可以提高益生菌治疗的好处。建议进一步研究以确定特定条件和人口统计学的最佳菌株和剂量。益生菌在临床实践和正在进行的研究中的整合可以有助于降低儿科患者胃肠道疾病的发生率和严重程度。
    UNASSIGNED: Probiotics are live microbial supplements that improve the microbial balance in the host animal when administered in adequate amounts. They play an important role in relieving symptoms of many diseases associated with gastrointestinal tract, for example, in necrotizing enterocolitis (NEC), antibiotic-associated diarrhea, relapsing Clostridium difficile colitis, Helicobacter pylori infections, and inflammatory bowel disease (IBD). In this narrative review, the authors aim to evaluate the role of different probiotic formulations in treating gastrointestinal diseases in pediatric population aged 18 years or younger and highlight the main considerations for selecting probiotic formulations for use in this population.
    UNASSIGNED: The authors searched PubMed and Clinicaltrials.gov from inception to 24th July 2022, without any restrictions. Using an iterative process, the authors subsequently added papers through hand-searching citations contained within retrieved articles and relevant systematic reviews and meta-analyses.
    UNASSIGNED: The effectiveness of single-organism and composite probiotics in treating gastrointestinal disorders in pediatric patients aged 18 or under were analyzed and compared in this study. A total of 39 studies were reviewed and categorized based on positive and negative outcomes, and compared with a placebo, resulting in 25 studies for single-organism and 14 studies for composite probiotics. Gastrointestinal disorders studied included NEC, acute gastroenteritis (AGE), Acute Diarrhea, Ulcerative Colitis (UC), and others. The results show that probiotics are effective in treating various gastrointestinal disorders in children under 18, with single-organism probiotics demonstrating significant positive outcomes in most studies, and composite probiotics showing positive outcomes in all studies analyzed, with a low incidence of negative outcomes for both types.
    UNASSIGNED: This study concludes that single-organism and composite probiotics are effective complementary therapies for treating gastrointestinal disorders in the pediatric population. Hence, healthcare professionals should consider using probiotics in standard treatment regimens, and educating guardians can enhance the benefits of probiotic therapy. Further research is recommended to identify the optimal strains and dosages for specific conditions and demographics. The integration of probiotics in clinical practice and ongoing research can contribute to reducing the incidence and severity of gastrointestinal disorders in pediatric patients.
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  • 文章类型: Journal Article
    背景:精准医学的发展对于个性化治疗和改善临床结果至关重要,而生物标志物对精准治疗的成功至关重要.
    目的:研究iCEMIGE(CEll-形态计量学的集成,米克罗生物群落,和GEne生物标志物特征)改善了乳腺癌(BC)患者的风险分层。
    方法:我们使用我们最近开发的机器学习技术从癌症基因组图谱(TCGA)乳腺癌(TCGA-BRCA)队列的整个组织学切片图像中鉴定细胞形态生物标志物(CMBs)。多因素Cox回归用于评估细胞形态计量学预后评分(CMPS)和我们先前报道的12基因表达预后评分(GEPS)和15微生物丰度预后评分(MAPS)是否是独立的预后因素。iCEMIGE建立在稀疏表示学习技术之上。iCEMIGE评分模型性能通过与CMPS相比的受试者工作特性曲线下面积来衡量,GEPS,或单独的地图。建立列线图模型来预测TCGA-BRCA队列中5年和10年的总生存率(OS)和无进展生存率(PFS)。
    结果:我们确定了39个用于在BC中创建CMPS系统的CMBs。CMPS,GEPS,发现MAPS与OS显著独立相关。然后,我们建立了一个iCEMIGE评分系统,用于BC患者的风险分层。iGEMIGE评分对OS和PFS具有显着的预后价值,而与临床因素无关(年龄,舞台,以及雌激素和孕激素受体状态)和基于PAM50的分子亚型。重要的是,与CMPS相比,iCEMIGE分数显着提高了预测OS和PFS的能力,GEPS,或单独的地图。
    结论:我们的研究表明了一种新颖的通用人工智能框架,用于多模态数据整合,以改善BC患者的预后风险分层,可以扩展到其他类型的癌症。
    BACKGROUND: The development of precision medicine is essential for personalized treatment and improved clinical outcome, whereas biomarkers are critical for the success of precision therapies.
    OBJECTIVE: To investigate whether iCEMIGE (integration of CEll-morphometrics, MIcro biome, and GEne biomarker signatures) improves risk stratification of breast cancer (BC) patients.
    METHODS: We used our recently developed machine learning technique to identify cellular morphometric biomarkers (CMBs) from the whole histological slide images in The Cancer Genome Atlas (TCGA) breast cancer (TCGA-BRCA) cohort. Multivariate Cox regression was used to assess whether cell-morphometrics prognosis score (CMPS) and our previously reported 12-gene expression prognosis score (GEPS) and 15-microbe abundance prognosis score (MAPS) were independent prognostic factors. iCEMIGE was built upon the sparse representation learning technique. The iCEMIGE scoring model performance was measured by the area under the receiver operating characteristic curve compared to CMPS, GEPS, or MAPS alone. Nomogram models were created to predict overall survival (OS) and progress-free survival (PFS) rates at 5- and 10-year in the TCGA-BRCA cohort.
    RESULTS: We identified 39 CMBs that were used to create a CMPS system in BCs. CMPS, GEPS, and MAPS were found to be significantly independently associated with OS. We then established an iCEMIGE scoring system for risk stratification of BC patients. The iGEMIGE score has a significant prognostic value for OS and PFS independent of clinical factors (age, stage, and estrogen and progesterone receptor status) and PAM50-based molecular subtype. Importantly, the iCEMIGE score significantly increased the power to predict OS and PFS compared to CMPS, GEPS, or MAPS alone.
    CONCLUSIONS: Our study demonstrates a novel and generic artificial intelligence framework for multimodal data integration toward improving prognosis risk stratification of BC patients, which can be extended to other types of cancer.
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  • 文章类型: Case Reports
    我们的指标患者是一名患有克罗恩病的19岁男子。在出现与COVID-19一致的症状后,他,他62岁的父亲,和14岁的妹妹在2020年5月检测出SARS-CoV-2阳性。尽管有一个共同的家庭,他50岁的母亲有哮喘病史,他的健康兄弟和sister子(已婚夫妇)仍然阴性。该指数患者和他的母亲在2019年5月接受了微生物组分析,随后他的兄弟和他的sister子在2020年11月。我们观察到SARS-CoV-2阳性儿子的粪便微生物群与其健康家庭的粪便微生物群之间存在显着差异。细菌门有差异,类,订单,家庭,和属水平随着拟杆菌相对丰度的增加和细菌多样性的减少或缺失,特别是双歧杆菌家族。这项独特的研究可能预示着预防或治疗SARS-CoV-2感染的新的探索性途径。
    Our index patient is a 19-year-old man with Crohn\'s disease. After developing symptoms consistent with COVID-19, he, his 62-year-old father, and 14-year-old sister tested positive for SARS-CoV-2 in May 2020. Despite a shared household, his 50-year-old mother with a history of asthma and his healthy brother and sister-in-law (a married couple) remained negative. The index patient and his mother had undergone microbiome analysis in May 2019, following his brother and his sister-in-law in November 2020. We observed significant differences between the fecal microbiota of the SARS-CoV-2-positive son and those of his healthy family. There were differences in the bacterial phylum, class, order, family, and genus level with the increased relative abundance of Bacteroidetes and reductions or deletions in bacterial diversity, particularly of the Bifidobacterium family. This unique study may signal a new exploratory avenue for the prevention or treatment of SARS-CoV-2 infections.
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  • 文章类型: Journal Article
    妇科癌症,从女性的生殖器官开始,包括宫颈癌,子宫内膜,卵巢通常和阴道和外阴很少。肠道和阴道微生物组组成的变化会影响宿主细胞的免疫和代谢信号,导致慢性炎症,血管生成,细胞增殖,基因组不稳定,上皮屏障破坏和代谢失调可能导致妇科癌症的发作或加重进展。虽然妇科癌症中的微生物组刚刚出现,已经发现了某些显著的微生物组特征关联。宫颈癌伴随着高含量的人乳头瘤病毒,梭菌和Sneathia物种;据报道,子宫内膜癌存在阴道星藻和卟啉单胞菌物种,并且变形杆菌和厚壁菌门细菌的水平显着升高,沙眼衣原体,在卵巢癌中报道的乳杆菌和分枝杆菌。平衡妇科癌症中的微生物组组成有可能用作治疗靶标。例如,通过降低pH值,乳杆菌在阻断侵入性病原体与阴道上皮的粘连中可能发挥重要作用,生产细菌素并采用竞争性排除。微生物群的最佳或个性化平衡可以使用前元和益生菌来维持,和载有特定细菌的粪便微生物群移植。目前的证据强烈表明,健康的微生物组可以训练和触发人体的免疫反应,以攻击各种妇科癌症。此外,微生物组调节可能有助于改善免疫肿瘤学疗法。
    Gynecologic cancers, starting in the reproductive organs of females, include cancer of cervix, endometrium, ovary commonly and vagina and vulva rarely. The changes in the composition of microbiome in gut and vagina affect immune and metabolic signaling of the host cells resulting in chronic inflammation, angiogenesis, cellular proliferation, genome instability, epithelial barrier breach and metabolic dysregulation that may lead to the onset or aggravated progression of gynecologic cancers. While microbiome in gynecologic cancers is just at horizon, certain significant microbiome signature associations have been found. Cervical cancer is accompanied with high loads of human papillomavirus, Fusobacteria and Sneathia species; endometrial cancer is reported to have presence of Atopobium vaginae and Porphyromonas species and significantly elevated levels of Proteobacteria and Firmicutes phylum bacteria, with Chlamydia trachomatis, Lactobacillus and Mycobacterium reported in ovarian cancer. Balancing microbiome composition in gynecologic cancers has the potential to be used as a therapeutic target. For example, the Lactobacillus species may play an important role in blocking adhesions of incursive pathogens to vaginal epithelium by lowering the pH, producing bacteriocins and employing competitive exclusions. The optimum or personalized balance of the microbiota can be maintained using pre- and probiotics, and fecal microbiota transplantations loaded with specific bacteria. Current evidence strongly suggest that a healthy microbiome can train and trigger the body\'s immune response to attack various gynecologic cancers. Furthermore, microbiome modulations can potentially contribute to improvements in immuno-oncology therapies.
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