Publications by authors named "Naomi Fliss-Isakov"

Background: Morbidities related to obesity are usually associated with its severity and duration. Yet, the onset of serious morbidities in early adulthood among otherwise healthy adolescents with obesity is understudied. We aimed to investigate the association between adolescent BMI and serious morbidities before age 25 years.

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Background: Metabolic dysfunction-associated steatotic liver disease (MASLD) is associated with an unhealthy lifestyle. However, there is limited prospective evidence regarding the association between combined lifestyle factors and MASLD. This study aims to test the association of a combination of lifestyle components, expressed as a healthy lifestyle index (HLI), and unhealthful eating behavior habits with MASLD, insulin resistance (IR), liver fibrosis, and metabolic dysfunction-associated steatohepatitis.

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Background & Aims: Metabolic dysfunction-associated steatotic liver disease (MASLD) is strongly related to nutrition. However, only a few human and animal studies have tested the association between MASLD and dairy consumption and the effect of milk fat on liver damage. Therefore, we aimed at testing the association between consumption of dairy product and the incidence of MASLD and fibrosis markers in humans, and the effect of milk fat other fats on MASLD in animal studies.

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Article Synopsis
  • - This study explored how the processing level of food affects disease activity in inflammatory bowel disease (IBD) patients, analyzing dietary patterns and their correlation with clinical outcomes.
  • - Researchers found that higher intake of unprocessed/minimally processed foods was linked to lower disease activity, while high consumption of ultra-processed foods was associated with increased disease activity.
  • - The results suggest that moderating processed food intake could influence IBD outcomes, indicating a need for further prospective studies to validate these findings.
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Unlabelled: Fecal microbial transplantation (FMT) is the delivery of fecal microbiome, isolated from healthy donors, into a patient's gastrointestinal tract. FMT is a safe and efficient treatment for recurrent infection. Donors undergo strict screening to avoid disease transmission.

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Background And Aims: Several faecal microbial transplantation [FMT] approaches for ulcerative colitis [UC] have been investigated with conflicting results. We have recently published the clinical outcomes from the CRAFT UC Trial using FMT with the UC Exclusion Diet [UCED], compared with FMT alone. Here we aimed to compare the two FMT strategies in terms of microbial profile and function.

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We aimed to elucidate the effect of Medical Cannabis (MC) on appetite and nutritional status among patients with inflammatory bowel disease (IBD). A case series of patients with IBD were initiating treatment with MC for disease-related symptoms, at the IBD clinic of a tertiary referral medical center. Patients' demographics, anthropometrics, medical history and treatment and MC use were systematically recorded.

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Article Synopsis
  • Postoperative recurrence (POR) is common in Crohn's disease patients after surgery, but can be reduced with preventive treatment; however, there is insufficient data on the best treatment options and timing.
  • A clinical study compared the effectiveness of early treatment with 6-mercaptopurine (6-MP) versus adalimumab in patients after ileocecectomy, finding that adalimumab significantly reduced endoscopic recurrence rates at both 32 and 58 weeks post-surgery.
  • Factors like increased size of the resected bowel, lower body mass index (BMI), and specific lab results were linked to a higher risk of endoscopic recurrence, indicating that adalimumab may be a more effective choice for
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The Crohn's Disease (CD) exclusion diet (CDED) has been shown to induce remission in pediatric and adult patients with CD. In this retrospective cohort study, we describe our real-world experience with the CDED at the inflammatory bowel disease (IBD) unit of the Tel Aviv Medical Center between 2018-2021. CD patients with multiple clinical presentations and disease phenotypes who initiated the diet were included.

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Background: The anthroposophical philosophy is a holistic educational and lifestyle approach. Limited information exists on the health-promoting behavioral norms and obesity rates among children living anthroposophical vs. conventional lifestyles.

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Non-alcoholic fatty liver disease (NAFLD) has been associated with meat consumption in cross-sectional studies. However, only a few prospective studies have been conducted, and they did not test for liver fibrosis. We aimed to assess the association between meat consumption changes and the incidence and remission of NAFLD and significant liver fibrosis.

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Restorative proctocolectomy with ileal pouch-anal anastomosis is the surgical treatment of choice for patients with ulcerative colitis. Unfortunately, pouch inflammation (ie, pouchitis) is reported in up to 72% of pouch patients..

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Background: Increasing life expectancy will likely lead greater numbers of older patients to seek postbariatric body contouring plastic surgery. The impact of age on body contouring plastic surgery outcome is undetermined.

Methods: A retrospective cohort study of 317 postbariatric body contouring plastic surgery cases was performed.

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Background: Educating patients regarding thier inflammatory bowel disease (IBD) is important for their empowerment and disease management. We aimed to develop a questionnaire to evaluate patient understanding and knowledge of IBD.

Methods: We have developed the Understanding IBD Questionnaires (U-IBDQ), consisting of multiple-choice questions in two versions [for Crohn's disease (CD) and ulcerative colitis (UC)].

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Background: Atopic dermatitis (AD) is a remitting relapsing chronic eczematous pruritic disease. Several studies suggest that gut microbiota may influence AD by immune system regulation.

Methods: We performed the first in-human efficacy and safety assessment of fecal microbiota transplantation (FMT) for AD adult patients.

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(1) Background: Malnutrition is a highly prevalent complication in patients with inflammatory bowel diseases (IBD). It is strongly associated with poor clinical outcomes and quality of life. Screening for malnutrition risk is recommended routinely; however, current malnutrition screening tools do not incorporate IBD specific characteristics and may be less adequate for screening these patients.

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Background: The Crohn's disease exclusion diet (CDED) with partial enteral nutrition is effective for induction of remission in children with mild-to-moderate Crohn's disease. We aimed to assess the CDED in adults with Crohn's disease.

Methods: We did an open-label, pilot randomised trial at three medical centres in Israel.

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Background: We evaluated whether integration of novel diets for donors and patients, in addition to faecal transplantation [FT], could increase FT remission rate in refractory ulcerative colitis [UC].

Methods: This was a blinded, randomised, controlled trial in adults with active UC, defined by a simple clinical colitis activity index [SCCAI] of ≥5 and ≤11 and endoscopic Mayo score 2-3, refractory to medication. Group 1 received free diet and single donor standard FT by colonoscopy on Day 1and rectal enemas on Days 2 and 14 without dietary conditioning of the donor.

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Introduction: Abdominal desmoid tumors are locally aggressive tumors that develop in familial adenomatous polyposis (FAP) patients, within the mesentery or abdominal wall. The understanding and implications of the treatment regimens are evolving.

Aim: To assess the course, treatment, and outcomes of FAP and non-FAP abdominal desmoids and their related genetic alterations.

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Background & Aims: High consumption of ultra-processed food (UPF) is associated with mortality and chronic morbidity but has not been studied concerning to non-alcoholic fatty liver disease (NAFLD). We aimed to test the association of UPF consumption with metabolic syndrome, NAFLD and related-liver damage.

Methods: A cross-sectional study among volunteers who underwent abdominal ultrasound (AUS), anthropometrics, blood pressure measurements, and fasting blood tests including FibroMax for non-invasive assessment of NASH and significant fibrosis.

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Background: An early treat-to-target approach in Crohn's disease (CD) patients is recommended to avoid complications. However, CD may not always progress despite lack of treatment, thus exposing some patients to unnecessary side effects. We aimed to examine whether newly diagnosed CD patients with an inflammatory phenotype can benefit from a watchful waiting approach.

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Smoking and ultra-processed foods (UPFs), a substantial part of the western diet, have been suggested to have a potential carcinogenic effect, though epidemiologic data are lacking. We aimed to examine the association between high UPF intake and colorectal adenomas, and to test the interaction with smoking. In a case-control study among consecutive subjects undergoing colonoscopy in a tertiary center during 2010-2015, UPF intake and smoking were compared between cases with colorectal adenomas and controls.

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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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Background: Non-alcoholic fatty liver disease (NAFLD) and steatohepatitis (NASH) are associated with increased oxidative stress and lipid peroxidation, but large studies are lacking. The aim was to test the association of malondialdehyde (MDA), as a marker of oxidative damage of lipids, with NAFLD and liver damage markers, and to test the association between dietary vitamins E and C intake and MDA levels.

Methods: A cross-sectional study was carried out among subjects who underwent blood tests including FibroMax for non-invasive assessment of NASH and fibrosis.

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Background: Processed foods have been implicated in the pathogenesis of inflammatory bowel diseases (IBD). Our goal was to develop a validated processed foods frequency questionnaire (PFQ) and assess its reliability and validity.

Methods: We recruited adult IBD patients to fill-in a PFQ in this prospective single-center study.

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