Publications by authors named "Shitrit A"

Background: Perianal fistulas of Crohn's disease (CD) create a significant burden on patients' lives. However, the efficacy and safety of adipose-derived mesenchymal stem cell treatment are contradicting, and real-world evidence is lacking.

Aims: To examine the usability of darvadstrocel therapy in managing perianal CD.

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Objectives: Elderly hospitalized patients with inflammatory bowel disease (IBD) flare and concurrent Clostridioides difficile infection (CDI) are considered at high risk of IBD-related complications. We aimed to evaluate the short, intermediate, and long-term post-discharge complications among these patients.

Methods: A retrospective multicenter cohort study assessing outcomes of elderly individuals (≥60 years) hospitalized for an IBD flare who were tested for CDI (either positive or negative) and discharged.

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Mutations and genetic rearrangements are the primary driving forces of evolution. Viruses provide valuable model systems for investigating these mechanisms due to their rapid evolutionary rates and vast genetic variability. To investigate genetic rearrangements in the double-stranded DNA genome of herpes simplex virus type 1, the viral population was serially passaged in various cell types.

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Background: Curcumin and QingDai (QD, Indigo) have been shown to be effective for treating active ulcerative colitis (UC).

Aim: To evaluate the real-world experience with the Curcumin-QingDai (CurQD) herbal combination to induce remission in active UC.

Methods: A retrospec-tive multicentre adult cohort study from five tertiary academic centres (2018-2022).

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Sialic acid recognition and hydrolysis are essential parts of cellular function and pathogen infectivity. Neuraminidases are enzymes that detach sialic acid from sialosides, and their inhibition is a prime target for viral infection treatment. The connectivity and type of sialic acid influence the recognition and hydrolysis activity of the many different neuraminidases.

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Kinases are responsible for regulating cellular and physiological processes, and abnormal kinase activity is associated with various diseases. Therefore, kinases are being used as biomarkers for disease and developing methods for their sensing is highly important. Usually more than one kinase is involved in phosphorylating a target protein.

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Background: Women with inflammatory bowel diseases (IBD) often receive biologics to maintain remission during pregnancy.

Aims: To assess maternal and neonatal outcomes in patients with IBD treated with ustekinumab (UST) during pregnancy METHODS: In a multicentre, prospective cohort study, we recruited women with IBD treated with UST during pregnancy between 2019 and 2021. Outcomes were compared among patients treated with UST, anti-tumour necrosis factor α, (anti-TNF) and non-UST, non-anti-TNF therapies.

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Heparan sulfate glycosaminoglycans provides extracellular matrix defense against heavy metals cytotoxicity. Identifying the precise glycan sequences that bind a particular heavy metal ion is a key for understanding those interactions. Here, electrochemical and surface characterization techniques were used to elucidate the relation between the glycans structural motifs, uronic acid stereochemistry, and sulfation regiochemistry to heavy metal ions binding.

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Sensing enzymatic sialylation provides new tools for the evaluation of pathological events and pathogen invasion. Enzymatic sialylation is usually monitored via fluorescence or metabolic labeling, which requires relatively large amounts of the glycan substrate with limited availability. Using a label-free biosensor requires smaller quantities of substrates because the interactions induce measurable changes to an interface, which can be translated into a signal.

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Today's eating patterns are characterized by the consumption of unbalanced diets (UBDs) resulting in a variety of health consequences on the one hand, and the consumption of dietary supplements in order to achieve overall health and wellness on the other. Balanced nutrition is especially crucial during childhood and adolescence as these time periods are characterized by rapid growth and development of the skeleton. We show the harmful effect of UBD on longitudinal bone growth, trabecular and cortical bone micro-architecture and bone mineral density; which were analyzed by micro-CT scanning.

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Background: Gastroenteropancreatic neuroendocrine neoplasms [GEP-NENs] have rarely been reported in association with inflammatory bowel diseases [IBDs].

Methods: An ECCO COllaborative Network For Exceptionally Rare case reports project [ECCO-CONFER] collects cases of GEP-NENs diagnosed in patients with IBD.

Results: GEP-NEN was diagnosed in 100 IBD patients; 61% female, 55% Crohn's disease, median age 48 years (interquartile range [IQR] 38-59]).

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Article Synopsis
  • This study looked into how well two medications, ustekinumab (UST) and vedolizumab (VDZ), work as third-line treatments for patients with Crohn's disease who haven’t responded well to other medications.
  • Researchers included 204 patients, with 76% receiving VDZ followed by UST, and 24% the opposite. After 16 to 22 weeks, about half of patients in both groups showed a response to the treatment.
  • By week 52, similar response rates (around 86%) were observed, with about a quarter to a third of patients attaining clinical remission, indicating that both medications were similarly effective as third-class therapies. *
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The COVID-19 outbreak was announced as a global pandemic by the World Health Organization in March 2020 and has affected a growing number of people in the past few months. In this context, advanced artificial intelligence techniques are brought to the forefront as a response to the ongoing fight toward reducing the impact of this global health crisis. In this study, potential use-cases of intelligent speech analysis for COVID-19 identification are being developed.

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The COVID-19 pandemic caused by the SARS-CoV-2 requires a fast development of antiviral drugs. SARS-CoV-2 viral main protease (Mpro, also called 3C-like protease, 3CLpro) is a potential target for drug design. Crystal and co-crystal structures of the SARS-CoV-2 Mpro have been solved, enabling the rational design of inhibitory compounds.

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Background: Immune modulating therapies are associated with an increased risk of infections and malignancies. This is of particular concern in elderly inflammatory bowel disease patients. This study aims to compare the safety and efficacy of vedolizumab between young and elderly inflammatory bowel disease patients.

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Objectives: Inflammatory bowel diseases (IBDs) are commonly diagnosed in reproductive-aged women and can substantially affect pregnancy outcomes. Non-invasive monitoring of IBD during the prenatal course is particularly challenging as traditional laboratory biomarkers are often affected by pregnancy-related physiologic changes. We aimed to evaluate the role of fecal calprotectin (FC) in monitoring disease activity and predicting relapse among IBD women throughout gestation.

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Background And Aims: Crohn's disease [CD] can involve any part of the gastrointestinal tract. We aimed to characterize the clinical, endoscopic and histological features and treatment outcomes of CD patients with oesophageal involvement.

Methods: We collected cases through a retrospective multicentre European Crohn's and Colitis Organisation CONFER [COllaborative Network For Exceptionally Rare case reports] project.

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Objective: Both inflammatory bowel diseases (IBDs) and pregnancy are established risk factors for thrombotic complications, thus IBD pregnant patients can be considered at even greater risk for thrombosis as compared to non IBD pregnant women. We aimed to evaluate the risk factors associated with this prothrombotic tendency among IBD women throughout gestation.

Methods: Women with IBD attending a multidisciplinary clinic for the preconception,antenatal and postnatal treatment were prospectively recruited during 2017-2018.

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mRNAs carry two layers of information, the genetic code and the information that dictates their post-transcriptional fate. The latter function relies on a complex interplay between cis-elements and trans-regulators, and unbiased identification of these elements is still challenging. To identify cis-elements that control gene expression, we use dimethyl sulfate (DMS) mutational profiling with sequencing and map changes in mRNA secondary structure following viral infection.

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Background: Vedolizumab (VDZ) is effective for treatment of ulcerative colitis (UC) and Crohn's disease (CD). In GEMINI trials, anti-tumor necrosis factor (anti-TNF)-naïve patients had a superior response compared with anti-TNF-exposed patients. In real-world experience (RWE), the number of included anti-TNF-naïve patients was low.

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Background: Inflammatory bowel disease affects women during their reproductive years and thus pregnancy outcomes. IBD MOM is a multidisciplinary, single-center clinic established to benefit women with IBD and their neonates.

Aim: The aim of this study was to evaluate the perinatal outcomes of the IBD MOM clinic patients compared to patients who attended antenatal and gastrointestinal disease community clinics (IBD CC).

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Introduction: There are no data on the transfer of vedolizumab in breast milk of nursing mothers. We aimed to assess the presence of vedolizumab in breast milk of nursing inflammatory bowel disease [IBD] patients.

Methods: This was a prospective observational study of vedolizumab-treated breastfeeding patients with IBD.

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