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Background: Functional Gastrointestinal Disorders (FGIDs) present a higher prevalence in individuals with Neurodevelopmental Disorders (NDDs). The Stress System and the Gut-Brain axis (GBA) may mediate these relations. We aimed to assess the prevalence and profile of FGIDs in a clinical sample of children with Autism Spectrum Disorder (ASD) and Attention Deficit/Hyperactivity Disorder (ADHD) compared to typically developing children (TD) as well as to investigate possible relations between stress-related biomarkers and internalizing/externalizing problems in children with NDDS., Methods: In total, 120 children, aged between 4 and 12 years old, formed three groups (N = 40, each): ADHD, ASD and TD. Salivary cortisol, hair cortisol and serum leptin were measured., Results: The ASD group had more FGID problems than the TD group ( p = 0.001). The ADHD and ASD groups had higher total internalizing/externalizing problems than the TD group ( p < 0.0001, p < 0.0001, p = 0.005, respectively). Children with FGIDs showed more total, internalizing and externalizing problems compared to children without FGIDs ( p < 0.0001, p < 0.0001, p = 0.041, respectively). The ADHD group showed lower AUCg values ( p < 0.0001), while the hair cortisol was higher for the TD group ( p < 0.0001)., Conclusion: In conclusion, children with NDDs had more FGID symptoms and present higher internalizing and externalizing problems. Children with ADHD and FGIDs had more internalizing problems compared to those without FGIDs. No differences in stress-related biomarkers were shown to differentiate children with NDDs with and without FGIDs. Future prospective studies including a greater number of children may elucidate the biological pathways linking these comorbidities.

The study aimed to assess the total prevalence of functional gastrointestinal disorders (FGID), and separately, irritable bowel syndrome (IBS) among adults and to determine their potential association with fructose consumption. Data from the Hellenic National Nutrition and Health Survey were included (3798 adults; 58·9 % females). Information regarding FGID symptomatology was assessed using self-reported physician diagnosis questionnaires the reliability of which were screened using the ROME III, in a sample of the population. Fructose intake was estimated from 24 h recalls, and the MedDiet score was used to assess adherence to the Mediterranean diet. The prevalence of FGID symptomatology was 20·2 %, while 8·2 % had IBS (representing 40·2 % of total FGID). The likelihood of FGID was 28 % higher (95 %CI: 1·03-1·6) and of IBS 49 % (95 %CI: 1·08-2·05) in individuals with higher fructose intake than with lower intake (3rd tertile compared with 1st). When area of residence was accounted for, individuals residing in the Greek islands had a significantly lower probability of FGID and IBS compared with those residing in Mainland and the main Metropolitan areas, with Islanders also achieving a higher MedDiet score and lower added sugar intake, comparatively to inhabitants of the main metropolitan areas. FGID and IBS symptomatology was most prominent among individuals with higher fructose consumption, and this was most conspicuous in areas with a lower Mediterranean diet adherence, suggesting that the dietary source of fructose rather than total fructose should be examined in relation to FGID.

Background: The increased intake of FODMAP (fermentable oligosaccharides, disaccharides, monosaccharides, and polyol) rich foods has been suggested as a possible trigger of functional gastrointestinal disorders (FGIDs). Despite the high FODMAP content, the Mediterranean diet (MD) appears to have beneficial effects on health. Our aim was to evaluate whether the prevalence of FGIDs in different Mediterranean countries may be influenced by FODMAP consumption and adherence to the MD. Methods: A school-based, cross-sectional, multicenter study was performed in six countries in the Mediterranean area: Croatia, Greece, Israel, Italy, Macedonia, and Serbia. Subjects 4-18 years were examined in relation to their eating habits and the presence of FGIDs, using Rome IV criteria, 3-day food diaries and Mediterranean Diet Quality Index in Children and Adolescents (KIDMED) questionnaires. Results: We enrolled 1972 subjects between 4 and 9 years old (Group A), and 2450 subjects between 10 and 18 years old (Group B). The overall prevalence of FGIDs was 16% in Group A and 26% in Group B. FODMAP intake was significantly different among countries for both age groups. In both groups, no significant association was found between FGIDs and FODMAPs. Adherence to the MD in all countries was intermediate, except for Serbia, where it was low. In both groups, we found a statistically significant association between FGIDs and the KIDMED score (Group A: OR = 0.83, p < 0.001; Group B: OR = 0.93, p = 0.005). Moreover, a significant association was found between the KIDMED score and functional constipation (Group A: OR = 0.89, p = 0.008; Group B: OR = 0.93, p = 0.010) and postprandial distress syndrome (Group A: OR = 0.86, p = 0.027; Group B: OR = 0.88, p = 0.004). Conclusions: Our data suggest that the prevalence of FGIDs in the Mediterranean area is not related to FODMAP consumption, whereas adherence to the MD seems to have a protective effect.

Objectives: The aim of this study was to assess the prevalence of functional gastrointestinal disorders (FGIDs) in children of Mediterranean area using Rome IV criteria and to compare the prevalence of FGIDs using Rome IV and Rome III criteria., Methods: This was a cross-sectional study enrolling children and adolescents living in Croatia, Greece, Israel, Italy, Macedonia, and Serbia. Subjects were examined in relation to the presence of FGIDs, using the Rome IV criteria. Data were compared with the results of a previous study using Rome III data., Results: We analyzed 1972 children ages 4 to 9 years (group A), and 2450 adolescents 10 to 18 years old (group B). The overall prevalence of FGIDs was 16% in group A and 26% in group B, with statistical differences among countries in both groups (P < 0.001). In group A, the prevalence of FGIDs and of functional constipation (FC) was significantly lower than in the previous study (P < 0.001), whereas in group B no significant difference was found. In both groups of age, the prevalence of abdominal migraine and irritable bowel syndrome decreased significantly (P < 0.001 and P < 0.001, respectively) using Rome IV versus Rome III criteria, conversely functional dyspepsia increased (P < 0.001)., Conclusions: FGIDs are common in children and adolescents, their frequency increases with age, and there is a significant variation in the prevalence of some FGIDs among different European countries. The application of the Rome IV criteria resulted in a significantly lower prevalence of FGIDs in children compared with Rome III criteria., Competing Interests: The authors report no conflicts of interest., (Copyright © 2021 by European Society for Pediatric Gastroenterology, Hepatology, and Nutrition and North American Society for Pediatric Gastroenterology, Hepatology, and Nutrition.)

Objectives: Childhood functional gastrointestinal disorders (FGIDs) are common conditions associated with significant morbidity and high healthcare costs. This multicenter study aimed at assessing the clinical approach to infants (0-6 months) and children/adolescents (4-18 years) with suspected FGIDs by pediatricians from the Mediterranean Area., Methods: A survey evaluating the diagnostic approach, including the use of Rome II and III criteria, and the therapeutic management of some of the most prevalent FGIDs, such as irritable bowel syndrome (IBS), functional constipation (FC), and functional regurgitation (FR), was distributed to a sample of pediatricians., Results: We collected 278 questionnaires from 9 countries (Croatia, Greece, Israel, Italy, Lebanon, Montenegro, Serbia, Slovenia, and Spain). Rome III criteria are used to diagnose FC by 28.8%. Treatment of FC is based on dietary modifications (97.5%) and osmotic laxatives (93.5%). Rome III criteria are used to diagnose FR by 22.3% of the responders, in contrast to 79.5% who rely on personal experience for diagnosis. Reported treatments mainly consist of reassurance (96.8%) and thickened feedings (77.3%). Nevertheless, 21.2% prescribe proton pump inhibitors or H2-blockers to infants with FR. Rome III criteria are used to diagnose IBS by only 25.9%. Moreover, 86% of the pediatricians base IBS therapy on the predominant symptom. The most prescribed treatments are analgesics (36.6%) for pain control, dietary advice (41.5%) for diarrhea-predominant IBS, and dietary advice (47.8%) for constipation-predominant IBS., Conclusions: Our data show that the use of Rome III diagnostic criteria is not sufficiently widespread among pediatricians, and that large variability remains in the management of FGIDs within the different Mediterranean countries surveyed.

Background: Functional gastrointestinal disorders (FGIDs) are a common, diverse group of disorders of unknown etiology, resulting in significant socieconomic burden. In this study, we aimed to assess the prevalence of FGIDs in children aged 6-18 years and examine their association with various demographic and socioeconomic parameters., Methods: This was a school-based, cross-sectional study approved by the relevant government authorities. Informed consent was obtained by the legal representatives of all children who participated. Diagnoses of FGIDs were based on the Greek official translation of the ROME-III questionnaire. Demographic and socioeconomic information were also collected., Key Results: A total of 1588 children (51.8% females, mean age: 12.9±2.8 years) were included. The overall prevalence of any-FGID was 23.1% (95% CI: 21.1-25.2). The most common FGIDs were functional constipation, n=231 (13.9%), abdominal migraine, n=84 (5.6%), aerophagia, n=58 (3.5%), and irritable bowel syndrome, n=48 (3.0%). Multiple logistic regression analysis on the probability of any-FGID identified physical exercise, TV-exposure, victimization, gender, parental educational level, number of children at home and number of adults at home as significant covariates for any-FGID in the final model., Conclusions and Inferences: FGIDs affect approximately 1 in 4 school-aged children in Greece. The following characteristics are associated with a higher probability of any-FGID: female gender, living in a non-nuclear household, victimization, lower parental education level, infrequent physical activity, and high television exposure., (© 2016 John Wiley & Sons Ltd.)

The aim of the present study was to identify factors associated with the risk of development of gastrointestinal acute graft-versus-host disease (GI-aGVHD), as well as to evaluate the impact of various baseline parameters on response to treatment, nonrelapse mortality (NRM), and overall survival (OS) in pediatric patients with GI-aGVHD after allogeneic hematopoietic stem cell transplantation (allo-SCT). We retrospectively analyzed 300 pediatric patients who underwent allo-SCT from HLA-matched related or volunteer unrelated donors in our institution. GI tract involvement was observed in 46 out of 133 patients with aGVHD grade II-IV. Severe aGVHD (grade III-IV) was more frequently observed among patients with GI-aGVHD in comparison with patients without GI involvement (P < .001). Treatment with steroids resulted in durable responses in 22/46 patients; 14 additional patients responded to salvage therapy, whereas 10 were refractory to all treatments administered. Using Cox regression analysis, we observed that serum albumin level ≥ 3 mg/dL on day 5 after the initiation of therapy with steroids was statistically significantly associated with decreased hazard of NRM and improved OS (P = .021 and P = .026, respectively). In our study, serum albumin level, early (+ day 5) after the onset of steroids in patients with GI-aGVHD, was a predictor of treatment outcome. Prospective randomized trials need to be performed to verify the predictive significance of serum albumin and the need for early intensification of immunosuppressive treatment., (2011 American Society for Blood and Marrow Transplantation. Published by Elsevier Inc. All rights reserved.)

Unlabelled: The aim of the study was to investigate retrospectively a cohort of children with peptic ulcer disease during a period that covers the recent changes in diagnosis and management of the disease. Over a period of 9 years, 2550 children underwent upper gastrointestinal endoscopy for various reasons. All children, in whom a diagnosis of primary peptic ulcer was established, were included in the study. Previous and current medical history, family history, endoscopic and histological outcome were evaluated and the children were regularly followed-up on an out-patient basis. Primary peptic ulcer was diagnosed in 52 (10 gastric and 42 duodenal, 2%) out of 2550 children. The median age of children with gastric ulcer was 6.5 years, whereas of those with duodenal ulcer was 10.5 years (P=0.04). With regard to clinical symptoms no significant difference was found between children with and without ulcer. The prevalence of Helicobacter pylori infection was significantly higher in children with duodenal ulcer (62%) compared to those with gastric ulcer (20%; P < 0.001). At first follow-up visit, 1 month after the end of treatment, 19 symptomatic children underwent a repeat endoscopy, which showed ulcer healing in 95% and failure in H. pylori eradication in 27%. During the long-term follow-up (median 3.5 years), six children became symptomatic. Two of them had duodenal ulcer associated with positive H. pylori.Conclusion: Peptic ulcer disease is an uncommon disorder in childhood with non specific clinical features; it seems that efficient treatment and successful Helicobacter pylori eradication result in clinical improvement and cure as well as in long-term healing of ulcers. [ABSTRACT FROM AUTHOR]

Aim: The aim of the study was to investigate the presence of H. pylori in the dental plaque of children, who underwent endoscopy for upper GI symptoms and correlate it with the H. priori infection status of their parents. Methods: The study sample consisted of 35 children aged 4 to 14 years old and 49 family members (mother and/or father). Gastric biopsies were collected from all the children for CLO-test, histology and culture. Serology was used to assess the H. pylori status of the parents. Subgingival plaque samples were collected from the parents and children before endoscopy. Only samples positive by two different PCR methods were considered positive for the presence of H. pylori in dental plaque. Results: Fifteen out of 35 (43%) children were considered H. pylori infected by at least two methods (CLO, histology, culture). H. pylori was detected in dental plaques of 6/15 biopsy positive children and in only 1 of the 20 biopsy negative children. The presence of H. pylori in the dental plaque was significantly associated with H. pylori detection in gastric samples from the antrum (Fisher's p=0.027). On the basis of serology, 33.3% of mothers and 45% of fathers were considered positive for H. pylori infection. Children who had H. pylori identified in their plaque belonged to families who also had H. pylori in dental plaque. The presence of H. pylori in mother's dental plaque or positive serology was associated with H. pylori infection in the respective child (p=0.008 and p=0.002 respectively). Although the same trend was also observed for the fathers, the difference was not statistically significant (p=0.11 and p=0.576 respectively). Conclusions: Dental plaque of children and their families may play an important role-acting as a "reservoir" -for H. pylori transmission. The detection of H. pylori in mother's dental plaque seems to be a critical factor for the intrafamilial spread. [ABSTRACT FROM AUTHOR]

Background: H. pylori infection is common and its acquisition is mainly in young ages. It has been claimed that during early childhood intrafamilial contamination is more possible than from other sources outside home. Aim: The aim of the study was to investigate the H. pylori status within families of children with upper GI symptoms. Methods: 45 symptomatic children without previous eradication therapy aged 4-16 years (median 11yrs) were investigated by [sup 13]C-UBT as well as all their 125 family members (parents and siblings) living in the same house. Socioeconomic status and conditions of living were also investigated. Results: According to H. pylori status the index children were divided into group A: 20 (44%) who were H. pylori infected and group B: 25 (56%) who were negative for H. pylori infection. Forty four out of 57 (77%) relatives of group A were also infected, while H. pylori was found only in 19 out of 68 (28%) relatives of group B, (p=0.000). In group A 79% of fathers, 90% of mothers and 65% of siblings were found H. pylori positive, while in group B 29%, 44% and 5.2% respectively (p=0.001, p=0.01,p=0.001). There was not found any difference concerning living conditions between H. pylori positive and negative children. Conclusions: The significantly higher prevalence H. pylori infection within families of H. pylori positive symptomatic children, compared to the negative ones, supports the hypothesis that transmission of H. pylori in children could be from the infected members of the family or the same source within house. [ABSTRACT FROM AUTHOR]