Publications by authors named "Ryan S Carvalho"

Specific partially hydrolysed whey-based infant formulas (pHF-W) have been shown to decrease the risk of atopic dermatitis (AD) in infants. Historically, AD has been associated primarily with milk allergy; however, defective skin barrier function can be a primary cause of AD. We aimed to ascertain whether oral supplementation with pHF-W can improve skin barrier function.

View Article and Find Full Text PDF

Human milk is a dynamic, complex fluid that offers much more than nutrition to infants. The macronutrient content of human milk has been well characterized and described. However, human milk is not a simple matrix of protein, carbohydrate, fat, and micronutrients.

View Article and Find Full Text PDF

A growing, global conversation, regarding realities and challenges that parents experience today is ever-present. To understand recent parent's attitudes, beliefs, and perceptions regarding infant feeding, we sought to systematically identify and synthesize original qualitative research findings. Following the Enhancing Transparency in Reporting the Synthesis of Qualitative Research (ENTREQ) framework, electronic databases were searched with a priori terms applied to title/abstract fields and limited to studies published in English from 2015 to 2019, inclusive.

View Article and Find Full Text PDF

Background: For infants who are partially or exclusively fed infant formula, many options exist with compositional differences between formulas making choices difficult for caregivers and healthcare professionals. The protein in routine infant formulas differs by the source, fraction of cow's milk protein used, and degree of hydrolysis. All commercially available regulated infant formulas support growth and development, but different stool patterns have been observed based on formula composition.

View Article and Find Full Text PDF

Background & Aims: We examined the incidence of Crohn's disease (CD)-related surgery in a multi-center, inception cohort of pediatric patients with CD. We also examined the effect of starting immunomodulator therapy within 30 days of diagnosis.

Methods: Data from 854 children with CD from the Pediatric Inflammatory Bowel Disease Collaborative Research Group who were diagnosed with CD between 2002 and 2008 were analyzed.

View Article and Find Full Text PDF

Objectives: Although it is known that extraintestinal manifestations (EIMs) commonly occur in pediatric inflammatory bowel disease (IBD), little research has examined rates of EIMs and their relation to other disease-related factors in this population. The purpose of this study was to determine the rates of EIMs in pediatric IBD and examine correlations with age, sex, diagnosis, disease severity, and distribution.

Patients And Methods: Data were prospectively collected as part of the Pediatric IBD Collaborative Research Group Registry, an observational database enrolling newly diagnosed IBD patients <16 years old since 2002.

View Article and Find Full Text PDF

Objectives: Adalimumab, an anti-tumor necrosis factor immunoglobulin-1 antibody, is increasingly being reported as a potential treatment option for children with moderate-to-severe Crohn's disease (CD). The aim of this study was to characterize common indications, safety, tolerability, and clinical response to adalimumab in pediatric CD in a large, multicenter, patient cohort.

Methods: Data were obtained using a retrospective, uncontrolled chart review at 12 sites of the Pediatric Inflammatory Bowel Disease Collaborative Research Group.

View Article and Find Full Text PDF

Introduction: Although respiratory involvement has been described in patients with IBD, well-defined interstitial lung disease has not been reported, especially among children with ulcerative colitis.

Case Presentation: Herein, we present a case of an adolescent female with ulcerative colitis and extra-intestinal complications involving the lungs that were effectively treated with anti-metabolite therapy.

Conclusion: Children with UC may manifest either interstitial or large airway pulmonary involvement.

View Article and Find Full Text PDF

Background: Indeterminate colitis (IC) is a subgroup of inflammatory bowel disease (IBD) that cannot be characterized as either ulcerative colitis (UC) or Crohn's disease (CD). Our aims are to determine the prevalence of IC in our pediatric patient population and to describe its clinical presentation, natural history,and disease distribution.

Methods: We performed a retrospective database analysis of all children diagnosed with IBD at the Johns Hopkins Children's IBD Center between 1996 and 2001.

View Article and Find Full Text PDF