PURPOSE: Obesity and its related severe comorbidities are increasing rapidly. The duodenal-jejunal bypass is an endoscopically implanted device (mimicking the Roux-en-Y gastric bypass) developed to support weight reduction and improve type 2 diabetes control. MATERIALS AND METHODS: Retrospective data analysis of consecutive patients undergoing duodenal-jejunal bypass (EndoBarrier®, DJB) implantation between 2013 and 2017 was performed to evaluate safety as well as short- and long-term efficacy. RESULTS: One hundred and twenty-one patients (mean BMI of 43.1 ± 7.2 kg/m2 and weight of 138.2 ± 28.6 kg) underwent DJB implantation. The mean dwelling time was 15.5 months, the mean total body weight loss (%TBWL) after explantation was 10.3% ± 7.9% (14.2 kg, p < 0.0001), and the mean BMI was 39.5 ± 7.3 kg/m2 (p < 0.0001). There was no significant weight gain 24 months after the explantation. Seventy-seven patients had type 2 diabetes mellitus (T2DM) with a mean HbA1c before implantation of 5.6% (n = 52). The mean HbA1c after explantation was 5.1% (p = 0.0001). Significant reductions in transaminase and lipid levels before and after explantation were observed. One complication occurred during implantation and another during explantation. In 16 patients, the device had to be extracted earlier than expected (7 for severe adverse events and 9 for adverse events; 13.2%). CONCLUSION: Despite an evident rate of adverse events, the DJB shows promise as a weight-loss procedure. Our results show that some patients implanted with the device maintained reduced weight even 24 months after explantation, while many improved T2DM control.

• MeSH
• diabetes mellitus 2. typu * chirurgie   komplikace   MeSH
• duodenum chirurgie   MeSH
• glykovaný hemoglobin MeSH
• hmotnostní úbytek MeSH
• jejunum chirurgie   MeSH
• lidé MeSH
• morbidní obezita * chirurgie   MeSH
• obezita chirurgie   komplikace   MeSH
• retrospektivní studie MeSH
• výsledek terapie MeSH
• žaludeční bypass * metody   MeSH
• Check Tag
• lidé MeSH
• Publikační typ
• časopisecké články MeSH

The gut microbiota influences the reactivity of the immune system, and Parabacteroides distasonis has emerged as an anti-inflammatory commensal. Here, we investigated whether its lysate could prevent severe forms of neuroinflammation in experimental autoimmune encephalomyelitis (EAE) in mice and how this preventive strategy affects the gut microbiota and immune response. Lysate of anaerobically cultured P. distasonis (Pd lysate) was orally administered to C57BL/6 mice in four weekly doses. One week later, EAE was induced and disease severity was assessed three weeks after induction. Fecal microbiota changes in both vehicle- and Pd lysate-treated animals was analyzed by 16S V3-V4 amplicon sequencing and qPCR, antimicrobial peptide expression in the intestinal mucosa was measured by qPCR, and immune cell composition in the mesenteric and inguinal lymph nodes was measured by multicolor flow cytometry. Pd lysate significantly delayed the development of EAE and reduced its severity when administered prior to disease induction. EAE induction was the main factor in altering the gut microbiota, decreasing the abundance of lactobacilli and segmented filamentous bacteria. Pd lysate significantly increased the intestinal abundance of the genera Anaerostipes, Parabacteroides and Prevotella, and altered the expression of antimicrobial peptides in the intestinal mucosa. It significantly increased the frequency of regulatory T cells, induced an anti-inflammatory milieu in mesenteric lymph nodes, and reduced the activation of T cells at the priming site. Pd lysate prevents severe forms of EAE by triggering a T regulatory response and modulating T cell priming to autoantigens. Pd lysate could thus be a future modulator of neuroinflammation that increases the resistance to multiple sclerosis.

• MeSH
• Bacteroidetes imunologie   MeSH
• encefalomyelitida autoimunitní experimentální * imunologie   prevence a kontrola   MeSH
• myši inbrední C57BL * MeSH
• myši MeSH
• střevní mikroflóra * imunologie   MeSH
• střevní sliznice imunologie   mikrobiologie   metabolismus   MeSH
• T-lymfocyty imunologie   metabolismus   MeSH
• zvířata MeSH
• Check Tag
• myši MeSH
• ženské pohlaví MeSH
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH

Tento článek prezentuje nový doporučený klinický postup zaměřený na přístup k dětskému pacientovi s přítomností (či podezřením na přítomnost) cizího tělesa v gastrointestinálním traktu (GIT). Cílem práce bylo vytvořit algoritmus, který usnadní lékařům v prvním kontaktu s pacientem po požití cizího tělesa se rychle, přesně a efektivně rozhodnout o dalším diagnosticko-terapeutickém postupu. Pro usnadnění jsou cizí tělesa rozdělena do kategorií. Jednotlivé kategorie definují, jak moc bychom měli být ve svém přístupu aktivní. Zejména se jedná o identifikaci velmi rizikových situací nebo komplikací, a tedy rozhodnutí o neodkladném endoskopickém vyšetření, případně chirurgickém zákroku. Současně lze podle tohoto doporučení vyhodnotit, který pacient naopak nemusí být vůbec hospitalizován a může být sledován ambulantně. Algoritmus je navíc zpracován do grafického formátu, aby byl snadno a rychle dostupný v běžné praxi – na oddělení nebo v ambulancích, a pomohl tak k rychlému rozhodnutí a nalezení optimálního postupu pro konkrétního pacienta. Korespondující autor: MUDr. Michal Kubát Fakultní nemocnice v Motole V Úvalu 84/6 150 00 Praha 5 Michal.Kubat@fnmotol.cz

This article presents a novel recommended clinical approach focused on managing pediatric patients with the presence (or suspected presence) of a foreign body in the gastrointestinal tract (GIT). The objective of this work was to develop an algorithm that enables physicians at the initial point of contact with a patient who has ingested a foreign object to make rapid, accurate, and efficient decisions regarding the subsequent diagnostic and therapeutic steps. For the most effective approach, foreign bodies are categorized into different groups. These categories determine the level of clinical activity required, particularly in identifying high-risk situations or complications, thus guiding decisions on whether immediate endoscopic examination or surgical intervention is necessary. Simultaneously, this guideline allows for the assessment of patients who may not require hospitalization and can instead be monitored on an outpatient basis. Moreover, the algorithm is designed in a graphical format to be easily accessible in everyday practice – whether in hospital departments or outpatient clinics – thereby facilitating prompt decision-making and the identification of the optimal course of action for each specific patient.

• MeSH
• cizí tělesa * diagnostické zobrazování   klasifikace   komplikace   ošetřování   MeSH
• dítě MeSH
• gastrointestinální trakt * diagnostické zobrazování   zranění   MeSH
• lidé MeSH
• rentgendiagnostika břicha metody   MeSH
• směrnice pro lékařskou praxi jako téma MeSH
• Check Tag
• dítě MeSH
• lidé MeSH
• Publikační typ
• přehledy MeSH

BACKGROUND: In recent decades, magnetic resonance imaging (MRI) has gained prominence as a standard diagnostic method for preoperative assessment in patients with anorectal malformations and a colostomy, with the potential to replace the classic fluoroscopic distal pressure colostogram (FDPC). Three MRI techniques are available: MRI-distal pressure colostogram with gadolinium (MRI-DPCG) or saline (MRI-DPCS) instillation into the colostomy and native MRI without colostomy instillation. OBJECTIVE: To evaluate and compare the diagnostic accuracy of MRI (native MRI, MRI-DPCG and MRI-DPCS) in the preoperative workup of boys with an anorectal malformation and a colostomy and to compare it to FDPC. MATERIALS AND METHODS: Sixty-two boys with preoperative MRI using one of the three approaches and 43 with FDPC met the inclusion criteria for this retrospective study. The presence and localization of rectal fistulas according to the Krickenbeck classification were evaluated and compared with intraoperative findings. RESULTS: The accuracy of fistula detection for MRI in general (regardless of the technique), MRI-DPCS, MRI-DPCG, native MRI and FDPC was 95% (59/62, P<0.001), 100% (12/12, P=0.03), 100% (30/30, P<0.001), 85% (17/20, P=0.41) and 72% (31/43, P=0.82), respectively. The accuracy of describing fistula type in patients with a correctly detected fistula using these methods was 96% (45/47, P<0.001), 100% (9/9, P<0.001), 100% (23/23, P<0.001), 87% (13/15, P<0.001) and 67% (13/21, P=0.002), respectively. CONCLUSION: MRI is a reliable method for detecting and classifying fistulas in boys with an anorectal malformation and a colostomy and can be considered the modality of first choice for preoperative workup.

• MeSH
• anorektální malformace * diagnostické zobrazování   chirurgie   MeSH
• kolostomie MeSH
• lidé MeSH
• magnetická rezonanční spektroskopie MeSH
• magnetická rezonanční tomografie metody   MeSH
• rektální píštěl * chirurgie   MeSH
• rektum diagnostické zobrazování   chirurgie   abnormality   MeSH
• retrospektivní studie MeSH
• Check Tag
• lidé MeSH
• mužské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH

• MeSH
• adenom diagnóza   terapie   MeSH
• anastomóza chirurgická MeSH
• dospělí MeSH
• familiární adenomatózní polypóza * chirurgie   diagnostické zobrazování   komplikace   MeSH
• kolektomie MeSH
• lidé MeSH
• meduloblastom * chirurgie   diagnóza   terapie   MeSH
• peritonitida diagnóza   terapie   MeSH
• pouch MeSH
• tlusté střevo chirurgie   patologie   MeSH
• Check Tag
• dospělí MeSH
• lidé MeSH
• mužské pohlaví MeSH
• Publikační typ
• kazuistiky MeSH

Heterotopický pankreas (HP) je vrozená anomálie charakterizovaná přítomností pankreatické tkáně, která je anatomicky oddělena od hlavní pankreatické žlázy bez kontinuity vývodného systému a vaskularity. Nejčastější místa pro tento posun jsou v horní části gastrointestinálního traktu, zejména v žaludku, duodenu a proximálním jejunu. Mezi další méně obvyklá místa patří jícen, ileum, Meckelův divertikl, žlučový strom, mezenterium a slezina. Nekomplikovaný heterotopický pankreas obvykle nevykazuje příznaky a léze je často objevena náhodně během nesouvisejících operací, zobrazovacích vyšetření nebo pitvy. Tato zpráva popisuje 35letého muže s anamnézou požití žíraviny, který vykazoval dysfagii. Během chirurgického výkonu byla přibližně 40 cm od DJ flexury v jejunu pozorována tkáň o rozměrech 0,7 × 0,5 cm. Identifikovaná tkáň byla vyříznuta a odeslána na histopatologické vyšetření (HPE). Závěrem doporučujeme excizi ektopické tkáně a doporučujeme HPE, protože diagnózu HP nelze potvrdit bez důkladného histopatologického vyšetření. I přes svou vzácnost by měl být heterotopický pankreas zahrnut do diferenciální diagnózy při hodnocení gastrointestinálních stromálních tumorů.

Heterotopic pancreas (HP) is a congenital anomaly characterized by the presence of pancreatic tissue that is anatomically separate from the main pancreatic gland without continuity of the duct system and vascularity. The most frequent locations for this displacement are within the upper gastrointestinal tract, particularly in the stomach, duodenum, and proximal jejunum. Other less common sites include the esophagus, ileum, Meckel diverticulum, biliary tree, mesentery, and spleen. Typically, uncomplicated heterotopic pancreas does not exhibit symptoms, and the lesion is often discovered incidentally during unrelated surgeries, imaging examinations, or autopsy. This report describes a 35-year-old male with a history of corrosive ingestion who presented with dysphagia. During surgical exploration, a tissue measuring 0.7 × 0.5 cm was observed approximately 40 cm from the DJ flexure in the jejunum. The identified tissue was excised and sent in for histopathological examination (HPE). In conclusion, we advise the excision of the ectopic tissue and recommend HPE because the diagnosis of HP cannot be confirmed without a thorough histopathological examination. Despite its rarity, heterotopic pancreas should be included in the differential diagnosis when evaluating gastrointestinal stromal tumors.

• Klíčová slova
• heterotopický pankreas,
• MeSH
• choristom chirurgie   diagnóza   komplikace   MeSH
• chronická pankreatitida * MeSH
• dospělí MeSH
• endoskopie trávicího systému MeSH
• jejunum abnormality   chirurgie   MeSH
• kaustika otrava   MeSH
• lidé MeSH
• pankreas abnormality   anatomie a histologie   MeSH
• poruchy polykání * chirurgie   etiologie   MeSH
• Check Tag
• dospělí MeSH
• lidé MeSH
• mužské pohlaví MeSH
• Publikační typ
• kazuistiky MeSH

INTRODUCTION: Postoperative constipation (PC) in patients with imperforate anus and perineal fistula (PF) has been reported in up to 60%. Histological studies of PF revealed innervation anomalies which seem to be one of the reasons for PC. Perioperative histologically controlled fistula resection (PHCFR) allows appropriate resection of PF and pull-down normoganglionic rectum at the time of posterior sagittal anorectoplasty (PSARP). MATERIALS AND METHODS: A total of 665 patients with anorectal malformations underwent surgery between 1991 and 2021. Of these, 364 presented PF; 92 out of them (41 F) were studied. Patients with sacral and spinal cord anomalies, neurological disorders, and cut-back anoplasty were excluded. PSARP was done on all patients. Hematoxylin-eosin staining and NADH Tetrazolium-reductase histochemical method were used. Four and more ganglion cells in the myenteric plexus represented a sufficient length of the resection. The continence was scored according to the modified Krickenbeck scoring system. Final scores ranged from 1 to 7 points. Values are given as median. RESULTS: A total of 65 (70.7%) patients presented an aganglionic segment in PF, and 27 patients presented hypoganglionosis. The median length of the resected fistula was 25 mm (interquartile range [IQR]: 20-30). The median total continence score was 7 (IQR: 6-7). Post-op constipation was observed in 6/92 (6.5%) patients. CONCLUSION: PHCFR diminished PC to 6.5% of patients.

• MeSH
• anální atrézie * chirurgie   MeSH
• dítě MeSH
• kojenec MeSH
• lidé MeSH
• novorozenec MeSH
• perineum chirurgie   MeSH
• pooperační komplikace etiologie   MeSH
• předškolní dítě MeSH
• rektální píštěl * chirurgie   MeSH
• rektum chirurgie   abnormality   MeSH
• retrospektivní studie MeSH
• výsledek terapie MeSH
• zácpa etiologie   chirurgie   MeSH
• zákroky plastické chirurgie metody   MeSH
• Check Tag
• dítě MeSH
• kojenec MeSH
• lidé MeSH
• mužské pohlaví MeSH
• novorozenec MeSH
• předškolní dítě MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH

OBJECTIVE: This research aims to design and evaluate an enteric-coated hard capsule dosage form for targeted delivery of biological materials, such as FMT (fecal microbiota transplant) or live microbes, to the distal parts of the GIT. The capsules are designed to be internally protected against destruction by hydrophilic filling during passage through the digestive tract. METHODS: Hard gelatin capsules and DRcapsTMcapsules based on HPMC and gellan were used to encapsulate a hydrophilic body temperature-liquefying gelatin hydrogel with caffeine or insoluble iron oxide mixture. Different combinations of polymers were tested for the internal (ethylcellulose, Eudragit® E, and polyvinyl acetate) and external (Eudragit® S, Acryl-EZE®, and cellacefate) coating. The external protects against the acidic gastric environment, while the internal protects against the liquid hydrophilic filling during passage. Coated capsules were evaluated using standard disintegration and modified dissolution methods for delayed-release dosage forms. RESULTS: Combining suitable internal (ethylcellulose 1.0 %) and external (Eudragit® S 20.0 %) coating of DRcapsTM capsules with the wiping and immersion method achieved colonic release times. While most coated capsules met the pharmaceutical requirements for delayed release, one combination stood out. Colonic times were indicated by the dissolution of soluble caffeine (during 120-720 min) measured by the dissolution method, and capsule rupture was indicated by the release of insoluble iron oxide (after 480 min) measured by the disintegration method. This promising result demonstrates the composition's suitability and potential to protect the content until it's released, inspiring hope for the future of colon-targeted delivery systems and its potential for the pharmaceutical and biomedical fields. CONCLUSION: Innovative and easy capsule coatings offer significant potential for targeted drugs, especially FMT water suspension, to the GIT, preferably the colon. The administration method is robust and not considerably affected by the quantity of internal or external coatings. It can be performed in regular laboratories without specialized individual and personalized treatment equipment, making it a practical and feasible method for drug delivery.

• MeSH
• bakteriální polysacharidy chemie   MeSH
• biokompatibilní materiály chemie   MeSH
• celulosa * chemie   analogy a deriváty   MeSH
• deriváty hypromelózy chemie   MeSH
• hydrofobní a hydrofilní interakce * MeSH
• hydrogely chemie   MeSH
• kofein chemie   aplikace a dávkování   MeSH
• kolon * metabolismus   MeSH
• kyseliny polymethakrylové chemie   MeSH
• léky s prodlouženým účinkem chemie   MeSH
• polymery chemie   MeSH
• polyvinyly chemie   MeSH
• systémy cílené aplikace léků * metody   MeSH
• tobolky * MeSH
• uvolňování léčiv * MeSH
• želatina * chemie   MeSH
• železité sloučeniny chemie   aplikace a dávkování   MeSH
• Publikační typ
• časopisecké články MeSH

BACKGROUND: Radiation-induced intestinal injury (RIII) interrupts the scheduled processes of abdominal and pelvic radiotherapy (RT) and compromises the quality of life of cancer survivors. However, the specific regulators and mechanisms underlying the effects of RIII remain unknown. The biological effects of RT are caused primarily by DNA damage, and ataxia telangiectasia mutated (ATM) is a core protein of the DNA damage response (DDR). However, whether ATM is regulated by deubiquitination signaling remains unclear. METHODS: We established animal and cellular models of RIII. The effects of ubiquitin-specific protease 15 (USP15) on DNA damage and radion-induced intestinal injury were evaluated. Mass spectrometry analysis, truncation tests, and immunoprecipitation were used to identify USP15 as a binding partner of ATM and to investigate the ubiquitination of ATM. Finally, the relationship between the USP15/ATM axes was further determined via subsequent experiments. RESULTS: In this study, we identified the deubiquitylating enzyme USP15 as a regulator of DNA damage and the pathological progression of RIII. Irradiation upregulates the expression of USP15, whereas pharmacological inhibition of USP15 exacerbates radiation-induced DNA damage and RIII both in vivo and in vitro. Mechanistically, USP15 interacts with, deubiquitinates, and stabilises ATM via K48-linked deubiquitination. Notably, ATM overexpression blocks the effect of USP15 genetic inhibition on DNA damage and RIII progression. CONCLUSIONS: These findings describe ATM as a novel deubiquitination target of USP15 upon radiation-induced DNA damage and intestinal injury, and provides experimental support for USP15/ATM axis as a potential target for developing strategies that mitigate RIII.

• MeSH
• ATM protein * metabolismus   genetika   MeSH
• lidé MeSH
• modely nemocí na zvířatech MeSH
• myši MeSH
• poškození DNA * MeSH
• radiační poranění metabolismus   genetika   MeSH
• specifické proteázy ubikvitinu * metabolismus   genetika   MeSH
• střeva účinky záření   patologie   MeSH
• ubikvitinace * MeSH
• zvířata MeSH
• Check Tag
• lidé MeSH
• mužské pohlaví MeSH
• myši MeSH
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH

UNLABELLED: We would like to provide an updated comprehensive perspective and identify the components linked to chronic spontaneous urticaria (CSU) without specific triggers in autoimmune atrophic gastritis (AAG). AAG is an organ-specific autoimmune disease that affects the corpus-fundus gastric mucosa. Although we lack a unified explanation of the underlying pathways, when considering all paediatric patients reported in the literature, alterations result in gastric neuroendocrine enterochromaffin-like (ECL) cell proliferation and paracrine release of histamine. Several mechanisms have been proposed for the pathogenesis of CSU, with much evidence pointing towards AAG and ECL cell responses, which may be implicated as potential factors contributing to CSU. The excessive production/release of histamine into the bloodstream could cause or trigger exacerbations of CSU in AAG, independent of Helicobacter pylori; thus, the release of histamine from ECL cells may be the primary modulator. CONCLUSION: Considering the understanding of these interactions, recognising the respective roles of AAG in the pathogenesis of CSU may strongly impact the diagnostic workup and management of unexplained/refractory CSU and may inform future research and interventions in the paediatric population. WHAT IS KNOWN: • Autoimmune atrophic gastritis is a chronic immune-mediated inflammatory disease characterised by the destruction of the oxyntic mucosa in the gastric body and fundus, mucosal atrophy, and metaplastic changes. • Autoimmune atrophic gastritis in paediatric patients is important because of the poor outcome and risk of malignancy and possibly underestimated entities primarily reported in single-case reports. WHAT IS NEW: • Upper gastrointestinal inflammatory disorders, independent of H. pylori, have been implicated as potential inducing factors in the development of chronic spontaneous urticaria. • If a paediatric patient presents with symptoms such as anaemia, reduced vitamin B12 levels, recurrent urticaria with no other detectable aetiology, positive anti-parietal cell antibodies, and elevated gastrin levels, autoimmune atrophic gastritis should be considered a possible cause of chronic urticaria.

• MeSH
• autoimunitní nemoci * komplikace   diagnóza   MeSH
• chronická nemoc MeSH
• chronická urtikarie * etiologie   patologie   MeSH
• dítě MeSH
• gastritida atrofická * komplikace   patologie   MeSH
• gastritida * komplikace   diagnóza   MeSH
• Helicobacter pylori * MeSH
• histamin MeSH
• infekce vyvolané Helicobacter pylori * komplikace   MeSH
• lidé MeSH
• žaludeční sliznice patologie   MeSH
• Check Tag
• dítě MeSH
• lidé MeSH
• Publikační typ
• časopisecké články MeSH
• přehledy MeSH