Article
Medicine, General & Internal
Viktor Domislovic, Joachim Hog Mortensen, Majken Lindholm, Morten Asser Kaarsdal, Marko Brinar, Ana Barisic, Tina Manon-Jensen, Zeljko Krznaric
Summary: This study investigated serum biomarkers of ECM remodeling in patients with inflammatory bowel disease (IBD), and found that a combination of C4M, C3M, and PRO-C3 biomarkers may potentially serve as a biomarker to differentiate moderate to severe endoscopic disease.
JOURNAL OF CLINICAL MEDICINE
(2022)
Article
Gastroenterology & Hepatology
Vu Q. Nguyen, Fabiano Celio, Maithili Chitnavis, Mohammad Shakhatreh, Jeffry Katz, Fabio Cominelli, Amitabh Chak, Paul Yeaton
Summary: This study examined the role of EUS in distinguishing between Crohn's disease and ulcerative colitis, finding that it can be used to diagnose active and inactive disease by measuring colon wall layer thickness and assessing transmural disease activity.
GASTROINTESTINAL ENDOSCOPY
(2023)
Article
Gastroenterology & Hepatology
Filippos Koutroumpakis, Anna Evans Phillips, Dhiraj Yadav, Jorge D. Machicado, Maaz Ahsan, Claudia Ramos Rivers, Xiaoqing Tan, Marc Schwartz, Siobhan Proksell, Elyse Johnston, Jeffrey Dueker, Jana G. Hashash, Arthur Barrie, Janet Harrison, Michael A. Dunn, Liza Konnikova, Douglas J. Hartman, Hasieb Din, Dmitriy Babichenko, Gong Tang, David G. Binion
Summary: The study identified that IgG4 subclass deficiency is common in patients with IBD and associated with markers of disease severity. Treatment with intravenous Ig replacement therapy was beneficial in patients with IgG4-deficient severe IBD. Further research is needed to understand the mechanistic role of IgG4 deficiency in this subset of severe IBD patients.
INFLAMMATORY BOWEL DISEASES
(2021)
Article
Chemistry, Analytical
Zhiwei Miao, Kang Ding, Shuyin Jin, Lin Dai, Chen Dai, Xiang Li
Summary: The study utilized peptidomics to identify serum diagnostic markers for different stages of ulcerative colitis (UC), involving the identification of 40 peptides and the screening of six biomarker peptides derived from proteins associated with coagulation and complement activation. The perturbation of these peptides was found to effectively distinguish patients with active UC, patients with remitting UC, and healthy individuals, demonstrating the potential of serum peptidomics in diagnosing various stages of UC.
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
(2021)
Article
Gastroenterology & Hepatology
Heming Yao, Kayvan Najarian, Jonathan Gryak, Shrinivas Bishu, Michael D. Rice, Akbar K. Waljee, H. Jeffrey Wilkins, Ryan W. Stidham
Summary: This study aimed to pilot a fully automated video analysis system for grading endoscopic disease in ulcerative colitis (UC). The results showed promising performance in predicting disease severity in high-resolution videos and clinical trial videos, supporting the potential for artificial intelligence to provide accurate endoscopic disease grading in UC.
GASTROINTESTINAL ENDOSCOPY
(2021)
Article
Pharmacology & Pharmacy
Peishan Qiu, Lan Liu, Jun Fang, Meng Zhang, Haizhou Wang, Yanan Peng, Min Chen, Jing Liu, Fan Wang, Qiu Zhao
Summary: This study identified CASP1, SERPINA1, and CCL2 as hub genes related to autophagy in active UC. Moreover, SERPINA1 may serve as a new pharmacological autophagy regulator of UC, providing a new target for small molecules targeting autophagy in the treatment of active UC.
FRONTIERS IN PHARMACOLOGY
(2021)
Article
Medicine, General & Internal
Otilia Gavrilescu, Iolanda Valentina Popa, Mihaela Dranga, Ruxandra Mihai, Cristina Cijevschi Prelipcean, Catalina Mihai
Summary: This study aimed to develop a cost-effective and non-invasive machine learning (ML) method using the Inflammatory Bowel Disease Questionnaire (IBDQ) score and low-cost biological predictors to estimate endoscopic disease activity (EDA) in ulcerative colitis (UC). The inclusion of IBDQ in the predictors improved accuracy and the AUC for both the random forest (RF) and multilayer perceptron (MLP) classifiers. The RF technique outperformed the MLP method on unseen data, indicating its superior performance. This study is the first to propose the use of IBDQ as a predictor in an ML model to estimate UC EDA.
JOURNAL OF CLINICAL MEDICINE
(2023)
Article
Gastroenterology & Hepatology
Alexandra E. Livanos, Alexandra Dunn, Jeremy Fischer, Ryan C. Ungaro, Williams Turpin, Sun -Ho Lee, Shumin Rui, Diane Marie Del Valle, Julia J. Jougon, Gustavo Martinez-Delgado, Mark S. Riddle, Joseph A. Murray, Renee M. Laird, Joana Torres, Manasi Agrawal, Jared S. Magee, Thierry Dervieux, Sacha Gnjatic, Dean Sheppard, Bruce E. Sands, Chad K. Poster, Kenneth Croitoru, Francesca Petralia, Jean-Frederic Colombel, Saurabh Mehandru
Summary: This study found that anti-integrin avfi6 autoantibodies are present in patients with ulcerative colitis (UC) and are associated with disease development and outcomes before diagnosis. These findings suggest that anti-avfi6 antibodies may be a useful biomarker for prediction and prognosis of UC.
Review
Biochemistry & Molecular Biology
Montse Baldan-Martin, Maria Chaparro, Javier P. Gisbert
Summary: Inflammatory bowel diseases (IBDs) are chronic and inflammatory conditions affecting the gastrointestinal tract. Despite endoscopy being the gold standard test for assessing IBD, it is invasive and uncomfortable for patients. Therefore, non-invasive biomarkers for IBD diagnosis are urgently needed. This review summarizes proteomics and metabolomics studies in animals and humans, identifying urinary biomarkers for IBD diagnosis. Large-scale multi-omics studies with collaboration between clinicians, researchers, and industry are necessary for the development of sensitive and specific diagnostic biomarkers for personalized medicine.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Review
Microbiology
Laila Aldars-Garcia, Maria Chaparro, Javier P. Gisbert
Summary: IBD is a chronic relapsing-remitting systemic disease of the gastrointestinal tract, and the gut microbiome plays a crucial role in its pathogenesis by showing reduced species richness, diversity, and temporal stability. Changes in the gut microbiome are pivotal in determining the onset of IBD, with certain microbial taxa identified as diagnostic biomarkers.
Article
Biochemical Research Methods
Kun Liu, Bingjie Jia, Liping Zhou, Lei Xing, Lvying Wu, Yuanyuan Li, Jungang Lu, Lei Zhang, Su Guan
Summary: This study utilized metabolomics and lipidomics to identify biomarkers for evaluating the therapeutic efficacy of mesalazine on ulcerative colitis, revealing potential mechanisms of treatment. Through serum metabolomics analysis, metabolites associated with treatment outcomes were discovered, alongside identification of dysregulated metabolic pathways in colitis.
JOURNAL OF PROTEOME RESEARCH
(2021)
Article
Gastroenterology & Hepatology
Michael Due Larsen, Bente Mertz Norgard, Jens Kjeldsen
Summary: This study aimed to evaluate the prognostic impact of disease activity after 14 weeks of biologic therapy on surgery and steroid-free remission in patients with Crohn's disease and ulcerative colitis. The study found that a positive treatment response to biologic therapy predicted a better short-term outcome in CD and UC patients.
INFLAMMATORY BOWEL DISEASES
(2022)
Review
Medicine, General & Internal
Jared Matson, Sonia Ramamoorthy, Nicole E. Lopez
Summary: Ulcerative colitis is an inflammatory condition that primarily affects the rectum and colon, with surgical resection being the only cure, but recent advancements in biologically targeted therapies have reduced the need for surgery. The increasing complexity of medical management options adds challenges to surgical decision-making, with biomarkers potentially playing a significant role in predicting the need for surgery in different UC scenarios.
JOURNAL OF CLINICAL MEDICINE
(2021)
Review
Pharmacology & Pharmacy
Alix Demaris, Ella S. K. Widigson, Johan F. K. F. Ilvemark, Casper Steenholdt, Jakob B. Seidelin, Wilhelm Huisinga, Robin Michelet, Linda B. S. Aulin, Charlotte Kloft
Summary: This review aims to analyze the population PK models of infliximab (IFX) in patients with ulcerative colitis (UC) and acute severe UC (ASUC), and assess the impact of disease activity on IFX PK. The results showed that there are still many gaps in the current research, such as a limited number of models specifically developed for UC patients, a lack of studies on severe UC patients, and a lack of evaluation of predictive performance for the models. Therefore, more comprehensive research and adequate reporting and evaluation of the models are needed for clinical application.
Article
Physiology
Changchang Ge, Zhaofeng Shen, Yi Lu, Xiaojuan Liu, Yiheng Tong, Mengyuan Zhang, Yijing Liu, Hong Shen, Lei Zhu
Summary: Analyzing and classifying ulcerative colitis (UC) clinically is beneficial for the study of pathogenesis, disease monitoring, and precise treatment. The differential clinical indicators associated with the extent of colon lesions can serve as potential markers for predicting disease progression and prognosis, and have significant implications for UC mechanism research and drug development. Biomarkers can be selected based on the site of the lesion.
FRONTIERS IN PHYSIOLOGY
(2023)
Article
Gastroenterology & Hepatology
Lena Ohman, Rahil Dahlen, Stefan Isaksson, Asa Sjoling, Mary-Jo Wick, Henrik Sjovall, Lukas Van Oudenhove, Magnus Simren, Hans Strid
INFLAMMATORY BOWEL DISEASES
(2013)
Article
Gastroenterology & Hepatology
Ashok Kumar Kumawat, Hilja Strid, Kristina Elgbratt, Curt Tysk, Johan Bohr, Elisabeth Hultgren Hornquist
JOURNAL OF CROHNS & COLITIS
(2013)
Article
Gastroenterology & Hepatology
Anders Lasson, Per-Ove Stotzer, Lena Ohman, Stefan Isaksson, Maria Sapnara, Hans Strid
JOURNAL OF CROHNS & COLITIS
(2015)
Article
Gastroenterology & Hepatology
Anders Lasson, Hans Strid, Lena Ohman, Stefan Isaksson, Mikael Olsson, Britt Rydstrom, Kjell-Arne Ung, Per-Ove Stotzer
JOURNAL OF CROHNS & COLITIS
(2014)
Article
Gastroenterology & Hepatology
Maria K. Magnusson, Hans Strid, Stefan Isaksson, Antal Bajor, Anders Lasson, Kjell-Arne Ung, Lena Ohman
JOURNAL OF CROHNS & COLITIS
(2015)
Review
Gastroenterology & Hepatology
Lena Ohman, Hans Tornblom, Magnus Simren
NATURE REVIEWS GASTROENTEROLOGY & HEPATOLOGY
(2015)
Article
Gastroenterology & Hepatology
M. Bashashati, N. Rezaei, A. Shafieyoun, D. P. McKernan, L. Chang, L. Oehman, E. M. Quigley, M. Schmulson, K. A. Sharkey, M. Simren
NEUROGASTROENTEROLOGY AND MOTILITY
(2014)
Article
Multidisciplinary Sciences
Ulf A. Wenzel, Maria K. Magnusson, Anna Rydstrom, Caroline Jonstrand, Julia Hengst, Malin E. V. Johansson, Anna Velcich, Lena Ohman, Hans Strid, Henrik Sjovall, Gunnar C. Hansson, Mary Jo Wick
Article
Gastroenterology & Hepatology
Anders Lasson, Lena Ohman, Per-Ove Stotzer, Stefan Isaksson, Otto Uberbacher, Kjell-Arne Ung, Hans Strid
UNITED EUROPEAN GASTROENTEROLOGY JOURNAL
(2015)
Article
Gastroenterology & Hepatology
Cristina Iribarren, Hans Tornblom, Imran Aziz, Maria K. Magnusson, Johanna Sundin, Louise K. Vigsnaes, Ingvild Dybdrodt Amundsen, Bruce McConnell, Dorthe Seitzberg, Lena Ohman, Magnus Simren
NEUROGASTROENTEROLOGY AND MOTILITY
(2020)
Article
Biochemistry & Molecular Biology
Maria K. Magnusson, Alexander Vidal, Lujain Maasfeh, Stefan Isaksson, Rajneesh Malhotra, Henric K. Olsson, Lena Ohman
Summary: The study found that while butyrate had inhibitory effects on T cell activation and proliferation in patients with active ulcerative colitis (UC), it was unable to reduce cytokine secretion and induce the expression of the inhibitory molecule CTLA-4. This dysfunction in butyrate-induced immune regulation could be linked to impaired CTLA-4 signaling in T cells from UC patients during a flare.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Cell Biology
Bani Ahluwalia, Cristina Iribarren, Maria K. Magnusson, Johanna Sundin, Egbert Clevers, Otto Savolainen, Alastair B. Ross, Hans Tornblom, Magnus Simren, Lena Ohman
Summary: In this study, a distinct fecal microbiota and metabolite profile associated with bowel habits was found in patients with IBS, with metabolites being the main driver of this separation. Additionally, the intestinal microenvironment profile differed between IBS patients with constipation or diarrhea, but no clustering was detected in subgroups based on symptom severity or anxiety levels. Ingenuity pathway analysis predicted altered amino acid metabolism and several cellular and molecular functions in IBS patients.
Article
Gastroenterology & Hepatology
Cristina Iribarren, Sofia Nordlander, Johanna Sundin, Stefan Isaksson, Otto Savolainen, Hans Tornblom, Maria K. Magnusson, Magnus Simren, Lena Ohman
Summary: This study investigates the effects of fecal luminal factors from irritable bowel syndrome (IBS) patients on the colonic epithelium using colonoids. The results show that fecal luminal factors from IBS patients induce distinct gene expression in the colonic epithelium, potentially reflecting the pathophysiology of the disease. This study may contribute to a better understanding of the interaction between IBS, intestinal microenvironment, and barrier.
NEUROGASTROENTEROLOGY AND MOTILITY
(2022)
Article
Biochemistry & Molecular Biology
Bani Ahluwalia, Maria K. Magnusson, Fredrik Larsson, Otto Savolainen, Alastair B. Ross, Lena Ohman
Summary: This study aimed to determine the metabolite composition of commercial Aloe extracts and assess their effects on human blood T cell activity. The results showed that different extracts had varying effects on T cells, including activation, proliferation, apoptosis, and cell death, which were related to the standard phytochemical composition of the extracts rather than the acemannan content.