374 results match your criteria: "Virgen del Rocío Children's Hospital[Affiliation]"

Background: Patients with systemic right ventricle (SRV), either d-transposition of the great arteries following an atrial switch procedure or congenitally corrected transposition of the great arteries, develop severe right ventricular dysfunction, prompting appropriate medical therapy. However, the efficacy of beta-blockers and angiotensin receptor blockers or angiotensin-converting enzyme inhibitors (ACEI) in SRV patients is unproven.

Objectives: The objective of this study was to determine the effects of ACEI/ARB and beta-blockers on outcomes in SRV patients after accounting for likely cofounders affecting their use.

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Differential diagnosis and comparison of diagnostic algorithms in children and adolescents with autoimmune encephalitis in Spain: a prospective cohort study and retrospective analysis.

Lancet Neurol

January 2025

Neuroimmunology Program, Institut d'Investigacions Biomèdiques August Pi i Sunyer/CaixaResearch Institute, Hospital Clínic de Barcelona, Barcelona, Spain; Pediatric Neuroimmunology Unit, Neurology Department, Sant Joan de Déu Children's Hospital, Barcelona, Spain; Institut de Recerca Sant Joan de Déu, Esplugues de Llobregat, Spain; European Reference Networks-RITA. Electronic address:

Background: The usefulness of current diagnostic approaches in children with suspected autoimmune encephalitis is unknown. We aimed to assess the diagnosis of autoimmune encephalitis in clinical practice and to compare the performance of two international diagnostic algorithms (one intended for patients of any age [general], the other intended for paediatric patients), with particular emphasis on the evaluation of patients with probable antibody-negative autoimmune encephalitis because this diagnosis suggests that immunotherapy should be continued or escalated but is difficult to establish.

Methods: We did a prospective cohort study that included all patients (<18 years of age) with suspected autoimmune encephalitis recruited at 40 hospitals in Spain whose physicians provided clinical information every 6 months for 2 years or more.

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Article Synopsis
  • Fanconi anemia (FA) is a rare genetic disorder marked by varying symptoms and significant chromosome fragility, leading to severe health issues like cancer and bone marrow failure.
  • The Spanish Registry of Patients with FA gathered data from 227 patients over 30 years, revealing an 86% cumulative cancer incidence by age 50, with outcomes differing based on chromosome fragility and specific gene mutations.
  • Findings suggest that patients with mutations allowing some protein function (genetic hypomorphism) tend to have better health outcomes, indicating potential for new therapies that could enhance mutant FA protein function to improve patient prognosis.
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HMGCS1 variants cause rigid spine syndrome amenable to mevalonic acid treatment in an animal model.

Brain

November 2024

Harry Perkins Institute of Medical Research, Centre for Medical Research, University of Western Australia, Nedlands, Perth, WA 6009, Australia.

Article Synopsis
  • Rigid spine syndrome is a rare condition in children marked by progressive scoliosis, neck and spine stiffness, muscle weakness, and breathing issues, primarily linked to genetic variations in the SELENON gene.
  • Recent research identified additional genetic variants in the HMGCS1 gene in five patients, suggesting it plays a role in this syndrome, despite it not being previously linked to any diseases.
  • Functional studies of the HMGCS1 variants showed altered protein stability and activity, and experiments in zebrafish indicated that these mutations severely impact development, but can be rescued by introducing healthy HMGCS1 mRNA.
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  • Subcortical brain structures play a crucial role in various developmental and psychiatric disorders, and a study analyzed brain volumes in 74,898 individuals, identifying 254 genetic loci linked to these volumes, which accounted for up to 35% of variation.
  • The research included exploring gene expression in specific neural cell types, focusing on genes involved in intracellular signaling and processes related to brain aging.
  • The findings suggest that certain genetic variants not only influence brain volume but also have potential causal links to conditions like Parkinson’s disease and ADHD, highlighting the genetic basis for risks associated with neuropsychiatric disorders.
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Importance: The combination of ifosfamide and etoposide (IE) is commonly used to treat relapsed or refractory osteosarcoma; however, second-line treatment recommendations vary across guidelines.

Objective: To evaluate whether the addition of lenvatinib to IE (LEN-IE) improves outcomes in children and young adults with relapsed or refractory osteosarcoma.

Design, Setting, And Participants: The OLIE phase II, open-label, randomized clinical trial was conducted globally across Europe, Asia and the Pacific, and North America.

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  • The study aimed to evaluate hearing outcomes at 24 months for infants with mild congenital cytomegalovirus (cCMV) infection, comparing those who received antiviral treatment to those who did not.
  • Utilizing data from the European Registry of Children with cCMV, researchers included infants diagnosed with cCMV early in life, who had normal physical exams and mild imaging findings.
  • Results showed that 34.7% of the 196 participants received antiviral treatment, but there was no significant difference in hearing loss prevalence between treated (4.6%) and untreated groups (6.3%) after two years.
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Article Synopsis
  • Subcortical brain structures play a crucial role in various disorders, and a study analyzed the genetic basis of brain volumes in nearly 75,000 individuals of European ancestry, revealing 254 loci linked to these volumes.
  • The research identified significant gene expression in neural cells, relating to brain aging and signaling, and found that polygenic scores could predict brain volumes across different ancestries.
  • The study highlights genetic connections between brain volumes and conditions like Parkinson's disease and ADHD, suggesting specific gene expression patterns could be involved in neuropsychiatric disorders.
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A deep intronic splice-altering variant causes APECED syndrome through antisense oligonucleotide-targetable pseudoexon inclusion.

Sci Transl Med

September 2024

Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA.

Article Synopsis
  • APECED is a serious genetic autoimmune disorder linked to variants in the autoimmune regulator (AIRE) gene, with 16% of evaluated patients lacking known harmful variants, most of whom are of Puerto Rican descent.
  • Researchers discovered a deep intronic variant (c.1504-818 G>A) in these patients that causes a cryptic splice site leading to a dysfunctional protein through pseudoexon inclusion.
  • They developed an antisense oligonucleotide (ASO) that corrected this genetic issue, demonstrating the potential for targeted treatments in APECED patients.
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The psychosis spectrum encompasses a heterogeneous range of clinical conditions associated with abnormal brain development. Detecting patterns of atypical neuroanatomical maturation across psychiatric disorders requires an interpretable metric standardized by age-, sex- and site-effect. The molecular and micro-architectural attributes that account for these deviations in brain structure from typical neurodevelopment are still unknown.

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Phenylketonuria is a rare inherited disorder that disrupts the metabolism of phenylalanine (Phe) to tyrosine by phenylalanine hydroxylase (PAH). Sapropterin dihydrochloride (Kuvan®) is approved for use in Europe to reduce blood Phe levels and improve Phe tolerance in sapropterin-responsive individuals. KAMPER (NCT01016392) is an observational, multinational registry assessing long-term safety and efficacy of sapropterin.

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Article Synopsis
  • Patients with transposition of the great arteries (TGA) and systemic right ventricle face serious heart-related risks, and researchers sought to determine if specific invasive hemodynamic measures can predict outcomes.
  • The study included 242 adults who underwent cardiac catheterization from 1994 to 2020, analyzing various hemodynamic parameters over an average follow-up period of 11.4 years.
  • Results indicated that a low aortic pulsatility index (<1.5) strongly predicts negative outcomes such as death or the need for heart transplantation, with the cold/wet hemodynamic profile presenting the highest associated risk.
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Relationship between Infant Feeding and the Microbiome: Implications for Allergies and Food Intolerances.

Children (Basel)

August 2024

Department of Biochemistry and Molecular Biology II, School of Pharmacy, University of Granada, Campus de Cartuja s/n, 18071 Granada, Spain.

Childhood is a critical period for immune system development, which is greatly influenced by the gut microbiome. Likewise, a number of factors affect the gut microbiome composition and diversity, including breastfeeding, formula feeding, and solid foods introduction. In this regard, several studies have previously demonstrated that breastfeeding promotes a favorable microbiome.

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Background: Factors associated with severe COVID-19 infection have been identified; however, the impact of infection on longer-term outcomes is unclear. The objective of this study was to examine the impact of COVID-19 infection on the trajectory of lung function and nutritional status in people with cystic fibrosis (pwCF).

Methods: This is a retrospective global cohort study of pwCF who had confirmed COVID-19 infection diagnosed between January 1, 2020 and December 31, 2021.

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Background And Hypothesis: Young adults starting kidney replacement therapy (KRT) during childhood and reaching their 18th birthday (i.e. adult survivors of childhood KRT) form a challenging population of interest to nephrologists treating adults, as during this period there will be a transition to adult renal centres.

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Performance of upper limb entry item to predict forced vital capacity in dysferlin-deficient limb girdle muscular dystrophy.

Neuromuscul Disord

October 2024

The John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle Upon, Tyne, United Kingdom. Electronic address:

Dysferlin-deficient limb girdle muscular dystrophy (LGMD R2), also referred to as dysferlinopathy, can be associated with respiratory muscle weakness as the disease progresses. Clinical practice guidelines recommend biennial lung function assessments in patients with dysferlinopathy to screen for respiratory impairment. However, lack of universal access to spirometry equipment and trained specialists makes regular monitoring challenging.

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Article Synopsis
  • The study investigates how the brain’s structural and functional networks develop during adolescence, highlighting the importance of these changes for adult cognitive and emotional outcomes.
  • It analyzes MRI data from 300 healthy adolescents to create morphometric similarity networks (MSNs), revealing increased similarity in paralimbic areas (like the insula) but decreased similarity in neocortical areas as adolescence progresses.
  • Findings suggest that while neocortical areas become more functionally integrated and distinct (often linked to processes like thinning and myelination), paralimbic areas focus on affective functions and show less differentiation during this critical developmental period.
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Introduction: Introduction: Renal cell carcinoma (RCC) is a very rare pediatric renal tumor. Robust evidence to guide treatment is lacking and knowledge on targeted therapies and immunotherapy is mainly based on adult studies. Currently, the International Society of Pediatric Oncology-Renal Tumor Study Group (SIOP-RTSG) 2016 UMBRELLA protocol recommends sunitinib for metastatic or unresectable RCC.

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Background: Maximal skin testing (ST) nonirritant concentrations (NICs) are consistent for penicillin and aminopenicillin among guidelines. However, there is variability among guidelines for maximal ST NICs of cephalosporins.

Objective: To determine maximal immediate and delayed ST NICs of 15 β-lactams in β-lactam-tolerant and β-lactam-naïve participants.

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Background: Among patients with nephroblastoma, those with bilateral disease are a unique population where maximising tumour control must be balanced with preserving renal parenchyma.

Methods: The SIOP 2001 protocol recommended surgery after neoadjuvant cycle(s) of Dactinomycin and Vincristine (AV) with response-adapted intensification, if needed. Adjuvant treatment was given based on the lesion with the worst histology.

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Children are highly vulnerable to mild traumatic brain injury (mTBI). Blood biomarkers can help in their management. This study evaluated the performances of biomarkers, in discriminating between children with mTBI who had intracranial injuries (ICIs) on computed tomography (CT+) and (1) patients without ICI (CT-) or (2) both CT- and in-hospital-observation without CT patients.

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Article Synopsis
  • Oculopharyngodistal myopathy (OPDM) is a genetic muscle disease that causes drooping eyelids, trouble swallowing, and weakness in the arms and legs.
  • Recent research found repeating sequences in a gene called ABCD3 in people with OPDM from European backgrounds, while similar repeats were only discovered in certain Asian groups before.
  • These long repeats in the ABCD3 gene might play a role in the muscle problems seen in OPDM, suggesting a link between these repeats and the weakness that affects patients.
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Deficits in memory performance have been linked to a wide range of neurological and neuropsychiatric conditions. While many studies have assessed the memory impacts of individual conditions, this study considers a broader perspective by evaluating how memory recall is differentially associated with nine common neuropsychiatric conditions using data drawn from 55 international studies, aggregating 15,883 unique participants aged 15-90. The effects of dementia, mild cognitive impairment, Parkinson's disease, traumatic brain injury, stroke, depression, attention-deficit/hyperactivity disorder (ADHD), schizophrenia, and bipolar disorder on immediate, short-, and long-delay verbal learning and memory (VLM) scores were estimated relative to matched healthy individuals.

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Background: Juvenile Dermatomyositis (JDM) is the most common chronic idiopathic inflammatory myopathy in children. The diagnosis is clinical. Baseline laboratory and complementary studies trace the phenotype of these patients.

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