Publications by authors named "Barbara Iwanczak"

This cross-sectional study presents the nutritional status of newly diagnosed pediatric patients with Crohn's disease (CD) and ulcerative colitis (UC) and its association with the duration of the disease and selected clinical features. We analyzed the data of 41 pediatric patients with CD and 29 with UC (mean age: 13.1 y, range: 5.

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Background: The development of diagnostic and monitoring algorithms for Crohn’s disease based on non-invasive methods is of particular importance in children and is the subject of many studies. Objectives: Evaluate the usefulness of fecal calprotectin, serum C-reactive protein, erythrocyte sedimentation rate, seromucoid and procalcitonin in the differential diagnosis of non-inflammatory gastrointestinal tract diseases and Crohn’s disease in children and their usefulness in determining the phenotype of Crohn’s disease. Material and methods: Forty-seven children with non-inflammatory gastrointestinal tract diseases and fifty-four with Crohn’s disease were enrolled.

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The human leukocyte antigen (HLA) allele group HLA-DQA1*05 predisposes to ulcerative colitis (UC) and is associated with the development of antibodies against infliximab in patients with inflammatory bowel disease (IBD). Therefore, we hypothesized that the presence of HLA-DQA1*05 correlates with characteristics of pediatric IBD. Within a multi-center cohort in Poland, the phenotype at diagnosis and worst flare was established and HLA-DQA1*05 status was assessed enabling genotype-phenotype analyses.

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Deleted in malignant brain tumours 1 protein (DMBT1) and surfactant protein D (SFTPD) are antimicrobial peptides previously linked to inflammatory bowel disease (IBD) susceptibility. This study attempts to link the most potential IBD-associated polymorphisms in DMBT1 and SFTPD with the disease severity in children. A total of 406 IBD patients (Crohn's disease (CD) = 214 and ulcerative colitis (UC) = 192) were genotyped using hydrolysis probe assay.

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Patients with inflammatory bowel disease (IBD) are susceptible to intestinal opportunistic infections due to both defective mucosal immunity and altered immune response resulting from immunosuppressive treatment. Microsporidia infecting the gastrointestinal tract and causing diarrhoea can potentially affect the course of IBD. Stool samples (90 IBD children and 121 healthy age-matched controls) were screened for spp.

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Background: It has been suggested that apolipoprotein E ( polymorphisms are associated with the risk of developing inflammatory bowel disease (IBD) and the early age of disease onset. However, there are no reports regarding the relationship with clinical characteristics and disease severity.

Aim: To summarise that APOE polymorphisms are associated with the risk of developing IBD and the early age of disease onset.

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No gold standard is available to evaluate subjective psychophysical experiences in pediatric inflammatory bowel disease (IBD). We aimed to assess pain, anxiety, and limitations in social activities at diagnosis and the worst flare of the disease in relation to clinical expression, treatment and IBD severity. A total of 376 children completed the survey (Crohn's disease (CD) n = 196; ulcerative colitis (UC) n = 180).

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Aim Of The Study: To evaluate the immune response rate in children with inflammatory bowel disease (IBD) who received the full hepatitis B vaccination course in infancy. We also evaluated rates of response to booster doses.

Material And Methods: Participants were 1- to 18-year-old children with IBD, who received 3 doses of the hepatitis B vaccine in infancy.

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This study was to investigate whether the clinical course of inflammatory bowel disease (IBD) in a Polish paediatric cohort fits a seasonal pattern and depends on insolation. Two hundred and fourteen patients diagnosed with Crohn's disease (CD) and 192 with ulcerative colitis (UC) aged from 3 to 18 years, were recruited in seven centres of similar latitude. The seasons were defined as winter (December-February), spring (March-May), summer (June-August), autumn (September-November).

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Objectives: The aim of the study was to assess clinical presentation, endoscopic findings, antibiotic susceptibility and treatment success of Helicobacter pylori (H. pylori) infected pediatric patients.

Methods: Between 2013 and 2016, 23 pediatric hospitals from 17 countries prospectively submitted data on consecutive H.

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Monitoring the antibiotic resistance of is an important step in the effective treatment of this bacterium, thus the aim of the present study was to assess the prevalence of antimicrobial resistance of strains isolated from pediatric and adult patients with primary infections in 2016-2018. Antral biopsies from 334 treatment-naïve patients (126 children and 208 adults) were obtained. A total of 71 clinical strains (22 from children and 49 from adults) were isolated and examined for amoxicillin (AMX), clarithromycin (CLR), metronidazole (MTZ), tetracycline (TET), and levofloxacin (LEV) susceptibility.

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Purpose: The aim of the study was to compare the clinical activity and inflammatory markers with the endoscopic activity of ulcerative colitis (UC) and mucosal healing.

Patients And Methods: The study included 50 children aged 2-18 years (27 girls, 23 boys) diagnosed with UC at various stages of the disease; 8 children were assessed twice. In 20 children, colonoscopy revealed pancolitis, in 24 - left-sided colitis, and in 6 - ulcerative proctitis.

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Results: We found significantly lower concentrations of total cholesterol, lipoprotein LDL-C, apolipoproteins A1 and B, as well as hCRP in all children with CD. We showed decreased level (<5 ng/mL) of folic acid among 46% of children treated for >5 years. Moreover, we showed significant decrease of folic acid level already after 1 year of a GFD (12 .

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Purpose: Crohn's disease (CD) is a chronic inflammatory disease which can affect all parts of the gastrointestinal tract. Magnetic resonance enterography (MRE) enables detection of pathologic changes in the small intestine, which are not accessible by conventional endoscopy. The aim of the study was to assess the value of MRE in imaging of small bowel lesions, their location and extent, in CD patients and its correlation with clinical and endoscopic activity.

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Background: The relationship of diffusely adherent Escherichia coli (DAEC) with pediatric inflammatory bowel disease (IBD) has not been previously studied. Diffusely adherent E. coli are a common cause of long-lasting childhood diarrhea and we postulated that they may induce inflammation of the intestinal mucosa, contributing to the development of IBD in susceptible children.

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Background: In children, colonoscopy is a safe procedure, although it is more difficult to perform in patients whose body mass index (BMI) is under 25.

Objectives: The aim of the study was to establish the relationship between children's age, body mass and height and incomplete colonoscopies due to colon anatomy.

Material And Methods: A retrospective evaluation of diagnostic endoscopies in 403 children aged 3-18 years (192 girls and 211 boys) was performed.

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Besides gastro-esophageal reflux, eosinophilic esophagitis (EoE), is the most frequently diagnosed chronic inflammatory disease both in children and adults. Clinical symptoms depend on the age of the patient and the time of the disease. In infants and younger children feeding disturbances, physical development retardation, vomiting and abdominal pain are most frequent.

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Chronic abdominal pain is a very common complaint in the population of children and adolescents. In most cases, the usual cause are functional gastrointestinal disorders. However, in a few percent of children, the reason for persistent chronic stomach pain are organic diseases occurring in the gastrointestinal tract, as well as parenteral diseases, including uro-genital tract abnormalities, inflammation of the lower respiratory tract and cancer processes.

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Background And Aims: The study investigates the practical utility of whole-blood gene expression profiling to diagnose inflammatory bowel diseases [IBDs].

Methods: The discovery cohorts included 102 and 51 paediatric IBD patients and controls, and 95 and 46 adult IBD patients and controls, respectively. The replication cohorts included 447 and 76 paediatric IBD patients and controls, and 271 and 108 adult IBD patients and controls, respectively.

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Objective: To investigate nutritional status and growth status of pediatric patients with functional gastrointestinal disorders (FGIDs) and to examine the relationship between nutritional status and linear growth in these children.

Study Design: In total, 102 pediatric patients diagnosed with functional constipation (FC), irritable bowel syndrome (IBS), or functional abdominal pain (FAP) in years 2013-2015 were subjected to anthropometric measurements. Anthropometry comprised body height, leg and trunk lengths, body weight, mid-upper arm circumference, and 3 skinfold thicknesses.

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The work presents the newest knowledge on a new phenotype of T helper lymphocytes (Th9) and on Interleukin 9 (IL-9). Processes leading to transformation of naïve T lymphocyte into Th9 lymphocytes are presented, including the role of IL-4 and TGFβ signaling. Involvement of transcription factor network in production of IL-9 is described.

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Introduction: Lactose malabsorption arises from lactase deficiency and may lead to lactose intolerance - gastrointestinal symptoms after lactose ingestion. Occurrence and severity of the symptoms are influenced by many factors, including the dose of lactose and the intensity of its colonic fermentation to short chain fatty acids and gases.

Material And Methods: The hydrogen breath test (HBT) after 30 g or 50 g of lactose was performed in 387 children.

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Helicobacter pylori infection is widely spread all over the world. The prevalence of H. pylori infection in the world varies and depends on numerous factors such as age, ethnicity, geographical and socioeconomic status.

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In the work diagnostic criteria of functional disorders of the gastrointestinal tract in children and adolescents aged 4 to 18 years are presented. The criteria were elaborated by experienced experts in pediatrics and gastroenterology and were presented on Digestive Disease Week in San Diego in 2016 as modified IV Rome Criteria. In the work the following functional disorders are discussed: cyclic vomiting syndrome, functional nausea and vomiting, rumination syndrome, aerophagia, functional dyspepsia, irritable bowel syndrome, abdominal migraine, functional abdominal pain - not otherwise specified, functional constipation, nonretentive fecal incontinence.

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Functional disorders of the gastrointestinal tract in infants and children are very frequent. To the most common belong: infant colic, regurgitation and functional constipation. In the year 2016 modified IV Rome criteria of functional gastrointestinal disorders were published.

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