Abstract:
:Background: Compared to breast-fed (BF), formula-fed (FF) infants exhibit more rapid weight gain, a different fecal microbial profile, as well as elevated serum insulin, insulin growth factor 1 (IGF-1), and branched chain amino acids (BCAAs). Since infant formula contains more protein and lower free amino acids than breast milk, it is thought that protein and/or free amino acids may be key factors that explain phenotypic differences between BF and FF infants. Methods: Newborn rhesus monkeys (Macaca mulatta) were either exclusively BF or fed regular formula or reduced protein formula either supplemented or not with a mixture of amino acids. Longitudinal sampling and clinical evaluation were performed from birth to 16 weeks including anthropometric measurements, intake records, collection of blood for hematology, serum biochemistry, hormones, and metabolic profiling, collection of urine for metabolic profiling, and collection of feces for 16s rRNA fecal microbial community profiling. Results: Reducing protein in infant formula profoundly suppressed intake, lowered weight gain and improved the FF-specific metabolic phenotype in the first month of age. This time-dependent change paralleled an improvement in serum insulin. All lower protein FF groups showed reduced protein catabolism with lower levels of blood urea nitrogen (BUN), urea, ammonia, albumin, creatinine, as well as lower excretion of creatinine in urine compared to infants fed regular formula. Levels of fecal microbes (Bifidobacterium and Ruminococcus from the Ruminococcaceae family), that are known to have varying ability to utilize complex carbohydrates, also increased with protein reduction. Adding free amino acids to infant formula did not alter milk intake or fecal microbial composition, but did significantly increase urinary excretion of amino acids and nitrogen-containing metabolites. However, despite the lower protein intake, these infants still exhibited a distinct FF-specific metabolic phenotype characterized by accelerated weight gain, higher levels of insulin and C-peptide as well as elevated amino acids including BCAA, lysine, methionine, threonine and asparagine. Conclusions: Reducing protein and adding free amino acids to infant formula resulted in growth and metabolic performance of infants that were more similar to BF infants, but was insufficient to reverse the FF-specific accelerated growth and insulin-inducing high BCAA phenotype.
journal_name
Front Pediatrjournal_title
Frontiers in pediatricsauthors
He X,Sotelo-Orozco J,Rudolph C,Lönnerdal B,Slupsky CMdoi
10.3389/fped.2019.00563subject
Has Abstractpub_date
2020-01-24 00:00:00pages
563issn
2296-2360journal_volume
7pub_type
杂志文章abstract::In recent years, there have been major advances in the application of non-invasive techniques to predict pregnancy-related complications, for example by measuring cell-free RNA (cfRNA) in maternal blood. In contrast to cell-free DNA (cfDNA), which is already in clinical use to diagnose fetal aneuploidy, circulating RN...
journal_title:Frontiers in pediatrics
pub_type: 杂志文章,评审
doi:10.3389/fped.2020.605219
更新日期:2020-12-14 00:00:00
abstract::Severe accidental hypothermia has been demonstrated to affect ventricular systolic and diastolic functions, and rewarming might be responsible of cardiovascular collapse. Until now, there have been only a few reports on severe accidental hypothermia, none of which involved children. Herein, we describe here a rare cas...
journal_title:Frontiers in pediatrics
pub_type:
doi:10.3389/fped.2019.00119
更新日期:2019-03-29 00:00:00
abstract::Neuromuscular disorders (NMDs) of Childhood onset are a genetically heterogeneous group of diseases affecting the anterior horn cell, the peripheral nerve, the neuromuscular junction, or the muscle. For many decades, treatment of NMDs has been exclusively symptomatic. But this has changed fundamentally in recent years...
journal_title:Frontiers in pediatrics
pub_type: 杂志文章,评审
doi:10.3389/fped.2020.583877
更新日期:2020-11-23 00:00:00
abstract::Abdominal lipoblastomas are uncommon soft tissue tumors in children and rarely arise from the mesentery. Due to intraabdominal location and slow growth, these masses can go unnoticed for long periods of time and often found on surgical exploration. We present a case of a 12-year-old male with years of abdominal disten...
journal_title:Frontiers in pediatrics
pub_type:
doi:10.3389/fped.2020.00404
更新日期:2020-07-24 00:00:00
abstract::Background: Survival of very-low-birth-weight infants is improving in neonatology and family-centered-care might contribute to premature infants' clinical outcomes. Aim: To evaluate a family-centered care intervention on clinical outcomes of very-low-birth-weight infants. Methods: A quasi-experimental study was conduc...
journal_title:Frontiers in pediatrics
pub_type: 杂志文章
doi:10.3389/fped.2019.00138
更新日期:2019-04-12 00:00:00
abstract::Background: Viral respiratory tract infections (VRTI) may cause severe respiratory and sepsis-like symptoms in infants hospitalized in the neonatal intensive care unit (NICU). Little is known about the frequencies of VRTI in relation to visiting policies in the NICU. Objective: Aim of this study was to evaluate the fr...
journal_title:Frontiers in pediatrics
pub_type: 杂志文章
doi:10.3389/fped.2020.606262
更新日期:2020-11-16 00:00:00
abstract::Differences in the development of the male and female brain are an evolving area of investigation. We are beginning to understand the underpinnings of male and female advantages due to differences in brain development as well as the consequences following hypoxic-ischemic brain injury in the newborn. The two main fact...
journal_title:Frontiers in pediatrics
pub_type: 杂志文章,评审
doi:10.3389/fped.2019.00211
更新日期:2019-06-26 00:00:00
abstract::The COVID-19 crisis has pressured hospital-based care for children with high-risk asthma as they have become deprived of regular clinical evaluations. However, COVID-19 also provided important lessons about implementing novel directions for care. Personalized eHealth technology, tailored to the individual and the heal...
journal_title:Frontiers in pediatrics
pub_type: 杂志文章
doi:10.3389/fped.2020.00529
更新日期:2020-09-08 00:00:00
abstract::[This corrects the article DOI: 10.3389/fped.2018.00316.]. ...
journal_title:Frontiers in pediatrics
pub_type: 已发布勘误
doi:10.3389/fped.2019.00284
更新日期:2019-07-25 00:00:00
abstract:OBJECTIVES:Nationally accredited simulation courses such as advance pediatric life support and pediatric advance life support are recommended for health care professionals (HCPs) at two yearly intervals as a minimum requirement, despite literature evidence suggesting rapid decline in knowledge shortly after course comp...
journal_title:Frontiers in pediatrics
pub_type: 杂志文章
doi:10.3389/fped.2014.00133
更新日期:2014-11-24 00:00:00
abstract::Animal models provide convenient and clinically relevant tools in the research on neurodegenerative diseases. Studies on developmental disorders extensively rely on the use of laboratory rodents. The present mini-review proposes an alternative translational model based on the use of fetal bovine brain tissue. The bovi...
journal_title:Frontiers in pediatrics
pub_type: 杂志文章,评审
doi:10.3389/fped.2014.00074
更新日期:2014-07-10 00:00:00
abstract::Non-cystic fibrosis bronchiectasis (NCFB) has gained renewed interest, due to its increasing health-care burden. Annual mortality statistics in England and Wales showed that under 1,000 people die from bronchiectasis each year, and this number is increasing by 3% yearly. Unfortunately, there is a severe lack of well-p...
journal_title:Frontiers in pediatrics
pub_type: 杂志文章,评审
doi:10.3389/fped.2017.00084
更新日期:2017-04-24 00:00:00
abstract::Ataxia-telangiectasia (A-T) is an autosomal recessive disorder characterized by neurodegeneration, combined immunodeficiency, and oculocutaneous telangiectasia. The hyper-IgM phenotype of A-T, correlating with a class-switch recombination defect, IgG and IgA deficiency, T helper and B cell lymphopenia, immune dysregul...
journal_title:Frontiers in pediatrics
pub_type:
doi:10.3389/fped.2020.570330
更新日期:2020-11-19 00:00:00
abstract::Introduction: Carnitine-acylcarnitine translocase deficiency (CACTD) is a rare and life-threatening autosomal recessive disorder of mitochondrial fatty acid oxidation caused by variation of the Solute carrier family 25 member 20 (SLC25A20) gene. Carnitine-acylcarnitine translocase is one of the crucial transport prote...
journal_title:Frontiers in pediatrics
pub_type:
doi:10.3389/fped.2020.585646
更新日期:2020-10-30 00:00:00
abstract::Background: The impact of a sedentary and unhealthy lifestyle on cardiovascular health is well-documented, however the current obesity and hypertension trends among children is concerning. The ExAMIN Youth SA study aims to investigate the impact of lifestyle behaviors (physical fitness/activity, dietary intake and psy...
journal_title:Frontiers in pediatrics
pub_type: 杂志文章
doi:10.3389/fped.2020.00212
更新日期:2020-04-29 00:00:00
abstract::Chronic active Epstein-Barr virus infection (CAEBV) is one of the Epstein-Barr virus (EBV)-positive T- or NK-lymphoproliferative diseases. It is considered rare and geographically limited to Japan and East Asia. However, CAEBV is drawing international attention, and the number of case reported worldwide is increasing,...
journal_title:Frontiers in pediatrics
pub_type: 杂志文章,评审
doi:10.3389/fped.2019.00014
更新日期:2019-02-05 00:00:00
abstract::We report a novel homozygous JAK3 mutation in two female Brazilian SCID infants from two unrelated kindreds. Patient 1 was referred at 2 months of age due to a family history of immunodeficiency and the appearance of a facial rash. The infant was screened for TRECs (T-cell receptor excision circles) and KRECs (kappa-d...
journal_title:Frontiers in pediatrics
pub_type:
doi:10.3389/fped.2018.00230
更新日期:2018-08-20 00:00:00
abstract::The evaluation and treatment of the heterogeneous group of kidney diseases poses a challenging field in pediatrics. Many of the pediatric disorders resulting in severe renal affection are exceedingly rare and therapeutic approaches have remained symptomatic for most of these disease entities. The insights obtained fro...
journal_title:Frontiers in pediatrics
pub_type: 杂志文章,评审
doi:10.3389/fped.2014.00068
更新日期:2014-07-01 00:00:00
abstract::Objective: To present 8-year follow-up outcomes, treatment of complications, and prognosis in children with congenital tracheal stenosis after metallic airway stent implantation. Methods: Retrospective analysis was performed on the clinical records of children who had airway stents placed between May 20, 2011 and May ...
journal_title:Frontiers in pediatrics
pub_type: 杂志文章
doi:10.3389/fped.2020.579209
更新日期:2020-10-26 00:00:00
abstract::Objectives: Mutations in the neuroblastoma-amplified sequence (NBAS) gene were originally described in patients with skeletal dysplasia or isolated liver disease of variable severity. Subsequent publications reported a more complex phenotype. Among multisystemic clinical symptoms, we were particularly interested in th...
journal_title:Frontiers in pediatrics
pub_type: 杂志文章
doi:10.3389/fped.2020.00577
更新日期:2020-09-15 00:00:00
abstract::Background: Abernethy malformation is a rare vascular anomaly of the portal venous system, which is also known as congenital portosystemic shunts (CPSS). The clinical manifestations of this anomaly can be serious, including hepatopulmonary syndrome(HPS), which can lead to significant hypoxemia and cyanosis. Case Prese...
journal_title:Frontiers in pediatrics
pub_type:
doi:10.3389/fped.2020.497447
更新日期:2020-10-27 00:00:00
abstract:BACKGROUND:Impaired sleep is associated with negative effects on quality of life and daytime functioning. Higher rates of sleep disturbance are reported in children with various developmental disorders. However, little is known about sleep in children with developmental coordination disorder (DCD), a condition characte...
journal_title:Frontiers in pediatrics
pub_type: 杂志文章
doi:10.3389/fped.2016.00081
更新日期:2016-08-04 00:00:00
abstract::Inflammatory bowel disease (IBD) is a chronic, immune-mediated, non-curable disease. The incidence of IBD appears to have risen over the last few decades especially in the pediatric age group. IBD usually presents with gastrointestinal symptoms, including abdominal pain, diarrhea, and bleeding per rectum but can also ...
journal_title:Frontiers in pediatrics
pub_type: 杂志文章,评审
doi:10.3389/fped.2020.00400
更新日期:2020-07-17 00:00:00
abstract::Background: The occurrence of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and the associated coronavirus disease 2019 (COVID-19) have profoundly affected adult kidney disease patients. In contrast, pediatric solid organ transplant recipients, including pediatric kidney transplant (KT) recipients, ...
journal_title:Frontiers in pediatrics
pub_type: 杂志文章
doi:10.3389/fped.2020.601327
更新日期:2020-10-30 00:00:00
abstract::Heart rate (HR) and blood pressure (BP) form the basis for monitoring the physiological state of patients. Although norms have been published for healthy and hospitalized children, little is known about their distributions in critically ill children. The objective of this study was to report the distributions of these...
journal_title:Frontiers in pediatrics
pub_type: 杂志文章
doi:10.3389/fped.2017.00052
更新日期:2017-03-17 00:00:00
abstract::Autoimmune Congenital Heart Block (CHB) is an immune-mediated disease due to transplacental passage of circulating anti-Ro/SSA and anti-La/SSB autoantibodies. It occurs in 2% of anti-Ro/SSA-exposed pregnancies, and recurrence rate is nine times higher in subsequent pregnancies. Aim of this review is to identify biomar...
journal_title:Frontiers in pediatrics
pub_type: 杂志文章,评审
doi:10.3389/fped.2020.607515
更新日期:2020-12-22 00:00:00
abstract:UNLABELLED:Pediatric acute encephalopathy (AE) was sometimes attributed to virus infection. However, viral infection does not always result in AE. The risk factors for developing infantile AE upon virus infection remain to be determined. Here, we report an infant with AE co-infected with human herpesvirus-6 (HHV-6) and...
journal_title:Frontiers in pediatrics
pub_type: 杂志文章
doi:10.3389/fped.2015.00026
更新日期:2015-04-02 00:00:00
abstract:OBJECTIVES/HYPOTHESIS:Congenital aural atresia is a rare condition affecting 1 in 10,000-20,000 children a year. Surgery is required to restore hearing to facilitate normal development. The objective of this study was to compare outcomes in hearing, complications, and quality of life of surgical reconstruction of the e...
journal_title:Frontiers in pediatrics
pub_type: 杂志文章
doi:10.3389/fped.2014.00005
更新日期:2014-01-22 00:00:00
abstract:BACKGROUND:Phenylketonuria (PKU) is caused by the inherited defect of the phenylalanine hydroxylase enzyme, which converts phenylalanine (Phe) into tyrosine (Tyr). Neonatal screening programs and early treatment have radically changed the natural history of PKU. Nevertheless, an increased risk of neurocognitive and psy...
journal_title:Frontiers in pediatrics
pub_type: 杂志文章
doi:10.3389/fped.2014.00057
更新日期:2014-06-23 00:00:00
abstract::Background: Pediatric sports-induced concussions have become a topic of interest and concern in the scientific community. Already, the literature is rich with studies that have identified numerous short-term and long-term consequences of childhood sports-induced concussions. However, there are very few studies that ha...
journal_title:Frontiers in pediatrics
pub_type: 杂志文章
doi:10.3389/fped.2020.526986
更新日期:2020-09-24 00:00:00