Publications by authors named "Faith D Ihekweazu"

Objective: To identify racial and ethnic disparities in disease phenotype, treatment, and outcome in a diverse cohort of children with pediatric inflammatory bowel disease (IBD).

Study Design: Patients aged 7 through 18 with IBD diagnosed at a single institution between March 2020 and June 2021 with self- or parent-identified race and ethnicity of non-Hispanic (NH) Black, NH-White, or Hispanic were included. Demographics, Centers for Disease Control/Agency for Toxic Substances and Disease Registry Social Vulnerability Index, Childhood Opportunity Index, disease phenotype, time to diagnosis, treatment, and health care utilization were compared between the racial and ethnic groups.

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  • A nationwide survey was conducted using the Gastrointestinal Health Questionnaire (GHQ) to evaluate the prevalence of gastrointestinal (GI) issues in females with Rett syndrome (RTT), as reported by their parents.
  • The survey included parents of 118 females with RTT and 27 age-matched, unaffected females, revealing high rates of GI symptoms such as constipation (81%) and eating difficulties (73%).
  • The findings highlight the significant prevalence of GI problems in RTT, suggesting a need for better recognition and management to improve the quality of life for affected individuals.
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Objectives: Disparities in health care for racial/ethnic minority children in the United States who are burdened by pediatric Crohn's disease (PCD) are not well understood.

Methods: A retrospective review of the Texas Children's Hospital ImproveCareNow database from 2007 to 2015 was performed. CD patients with a minimum of 2-year follow-up were included if the onset of symptoms attributable to inflammatory bowel disease was clearly documented.

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Background And Objective: Therapeutic options for pediatric inflammatory bowel disease (PIBD) have dramatically changed over the last 20 years. However, the impact of modern medical management on PIBD outcomes remains unclear. We aimed to fill this gap in the literature by using a large, validated, national database, to study the change in hospitalization rates, surgical rates, and postoperative complications in PIBD over the last decade.

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  • Gut microbes can make important chemicals that affect our brain and mood.
  • Researchers studied these chemicals and discovered that certain microbes produce acids and other compounds that can change levels of brain-related substances in mice.
  • The study shows that having specific gut microbes can change how much of these brain chemicals, like GABA, are found in the intestines, which might affect how we feel and think.
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  • Non-alcoholic fatty liver disease (NAFLD) is growing among children in the U.S., particularly affecting Hispanic kids the most, and is linked to other health issues from metabolic syndrome.
  • The study used national hospitalization data from 2004 to 2018 to analyze trends and disparities in NAFLD cases among children, focusing on different racial and ethnic groups.
  • Results showed a significant rise in hospitalizations, especially for Hispanic children, while non-Hispanic Black children had lower hospitalization rates, indicating the need for targeted health interventions.
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Bacteroidetes are the most common bacterial phylum in the mammalian intestine and the effects of several spp. on multiple facets of host physiology have been previously described. Of the spp.

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Objectives: Fecal microbiota transplantation (FMT) is arguably the most effective treatment for recurrent Clostridioides difficile infection (rCDI). Clinical reports on pediatric FMT have not systematically evaluated microbiome restoration in patients with co-morbidities. Here, we determined whether FMT recipient age and underlying co-morbidity influenced clinical outcomes and microbiome restoration when treated from shared fecal donor sources.

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The intestinal microbiota influences the development and function of the mucosal immune system. However, the exact mechanisms by which commensal microbes modulate immunity is not clear. We previously demonstrated that commensal Bacteroides ovatus ATCC 8384 reduces mucosal inflammation.

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Background: Lactic acid bacteria are commensal members of the gut microbiota and are postulated to promote host health. Secreted factors and cell surface components from Lactobacillus species have been shown to modulate the host immune system. However, the precise role of L.

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  • The study investigates how gut microbiota, particularly Bifidobacterium dentium, affects serotonin production from enterochromaffin cells in mice and the resulting impacts on behavior.
  • Germ-free mice treated with B. dentium showed increased levels of acetates and serotonin, along with enhanced expression of various serotonin receptors compared to other treatments.
  • The findings indicate that B. dentium and its metabolites could play a crucial role in modulating the serotonergic system, potentially influencing behaviors related to anxiety and repetitive actions.
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Background/purpose: Clinical outcomes in pediatric ulcerative colitis (UC) in the era of biologic agents are poorly defined. We aimed to describe risk factors for colectomy in pediatric UC in the era of infliximab therapy.

Methods: We reviewed 217 pediatric patients at Texas Children's Hospital with newly diagnosed UC between 2003 and 2015; 117 had a minimum of 5 years of follow-up.

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Pediatric recipients of SOT have a significantly increased risk of Clostridiodes (formerly Clostridium) difficile infection (CDI), which is associated with adverse outcomes after SOT. Alterations to the intestinal microbiota community structure increase the risk of CDI. FMT is a safe and effective treatment for recurrent CDI in immunocompetent children and adults.

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: Bacteriotherapy aimed at addressing dysbiosis may be therapeutic for Inflammatory Bowel Diseases (IBDs). We sought to determine if defined -based bacteriotherapy could be an effective and consistent alternative to fecal microbiota transplantation (FMT) in a murine model of IBD. : We induced experimental colitis in 8- 12-week-old C57BL/6 mice using 2-3% dextran sodium sulfate.

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The intestinal microbiota are important in human growth and development. Microbial composition may yield insights into the temporal development of microbial communities and vulnerabilities to disorders of microbial ecology such as recurrent Clostridium difficile infection. Discoveries of key microbiome features of carbohydrate and amino acid metabolism are lending new insights into possible therapies or preventative strategies for inflammatory bowel disease (IBD) and irritable bowel syndrome (IBS).

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Objectives: Differentiating ulcerative colitis (UC) and Crohn disease (CD) can be clinically challenging, especially in children. Granulomatous inflammation has traditionally been attributed to CD. Crypt-associated giant cells and granulomas, however, have been observed in colonic biopsies of patients with UC.

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Concomitant inflammatory bowel disease (IBD) and immune thrombocytopenic purpura (ITP) is a rare phenomenon. A shared immunologic pathway leading to mucosal inflammation and platelet destruction has been proposed. We report a case of a 14-year-old male who presented with abdominal pain, hematochezia, weight loss, and thrombocytopenia.

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Objectives: In adults, primary sclerosing cholangitis (PSC), a cholestatic liver disease characterized by inflammation/fibrosis of intra/extrahepatic bile ducts, associates with a milder form of inflammatory bowel disease (IBD), particularly ulcerative colitis (UC). The pediatric PSC-IBD phenotype is less well characterized.

Methods: We performed a retrospective, single-center study examining patients with PSC-IBD at Texas Children's Hospital between 2000 and 2015.

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  • It's important to rule out infections before changing immunosuppressive treatment in pediatric patients with ulcerative colitis (UC) flare-ups.
  • A study at Texas Children's Hospital reviewed 152 UC patients and analyzed stool test results for infections from 2003 to 2014.
  • Findings revealed that Clostridium difficile is common during UC flares, advising its routine screening, while other infections like Salmonella are rare but could be significant for some patients.
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Thiopurines are used as a maintenance therapy in patients with ulcerative colitis (UC). For some patients the metabolism of thiopurines is unfavorable, leading to increased adverse effects, including hepatotoxicity. There are many reports in the adult literature concerning the manipulation of thiopurine metabolism with allopurinol; however, there is only 1 publication in this respect for pediatric UC.

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