Publications by authors named "Michel Abely"

Background: Cystic fibrosis related diabetes (CFRD) is commonly associated with declining lung function and nutritional status. We aimed to evaluate the pulmonary impact of early glucose abnormalities by using 2-h standard oral glucose tolerance testing (OGTT) and continuous glucose monitoring (CGM) in people with cystic fibrosis (PwCF).

Methods: PwCF aged ≥10 years old without known CFRD were included in a five-year prospective multicentre study.

View Article and Find Full Text PDF

The increase in life expectancy of patients with cystic fibrosis has come with new comorbidities, particularly diabetes. The gradual development of glucose tolerance abnormalities means that 30 to 40% of adults will be diabetic. Cystic fibrosis-related diabetes is a major challenge in the care of these patients because it is a morbidity and mortality factor at all stages of the disease.

View Article and Find Full Text PDF

Objective: Despite recent progress in caring for patients born with esophageal atresia (EA), undernutrition and stunting remain common. Our study objective was to assess nutritional status in the first year after birth with EA and to identify factors associated with growth failure.

Study Design: We conducted a population-based study of all infants born in France with EA between 2010 and 2016.

View Article and Find Full Text PDF

This study aimed to analyze clinical practices concerning cystic fibrosis-related diabetes (CFRD) screening in France. A web-based questionnaire was distributed between December 1, 2020 and January 31, 2021 among 47 cystic fibrosis centers including pediatric, adult, and mixed units. In accordance with guidelines, 92.

View Article and Find Full Text PDF

This study aimed to compare continuous glucose monitoring (CGM) in cystic fibrosis (CF) according to pancreatic exocrine status.CGM and oral glucose tolerance testing (OGTT) were realized annually over five years in people with CF (pwCF) aged≥10 years without cystic fibrosis-related diabetes (CFRD). CGM parameters in patients with normal glucose tolerance (NGT), impaired glucose tolerance (IGT), and newly diagnosed CFRD were compared according to presence of pancreatic sufficiency (PS) or insufficiency (PI).

View Article and Find Full Text PDF

Objectives: Lumacaftor-ivacaftor is a cystic fibrosis transmembrane conductance regulator (CFTR) modulator known to improve clinical status in people with cystic fibrosis (CF). The aim of this study was to assess lung structural changes after 1 year of lumacaftor-ivacaftor treatment and to use unsupervised machine learning to identify morphological phenotypes of lung disease that are associated with response to lumacaftor-ivacaftor.

Methods: Adolescents and adults with CF from a French multicentre real-world prospective observational study evaluating the first year of treatment with lumacaftor-ivacaftor were included if they had pre-therapeutic and follow-up chest computed tomography (CT) scans available.

View Article and Find Full Text PDF

Lung damage in cystic fibrosis (CF) is strongly associated with lower airway infections. Early treatment of is recommended. Pathogen detection requires sampling of lower airway secretions, which remains a challenge in nonexpectorating patients.

View Article and Find Full Text PDF

Background: Phase 3 trials have demonstrated the safety and efficacy of lumacaftor-ivacaftor (LUMA-IVA) in patients with cystic fibrosis (CF) homozygous for the Phe508del CFTR mutation and percent predicted forced expiratory volume in 1 s (ppFEV) between 40 and 90. Marketing authorizations have been granted for patients at all levels of ppFEV.

Methods: To evaluate the safety and effectiveness of LUMA-IVA over the first year of treatment in patients with ppFEV<40 or ppFEV≥90 in comparison with those with ppFEV [40-90[.

View Article and Find Full Text PDF

Objectives: To investigate the effects of 1-year lumacaftor-ivacaftor treatment on abnormalities in glucose tolerance (AGT) in Phe508del homozygous cystic fibrosis (CF) patients.

Methods: Untreated CF patients with glucose intolerance or newly diagnosed diabetes were included in a prospective, observational study. After 1-year lumacaftor-ivacaftor treatment, AGT were evaluated by using oral glucose tolerance test.

View Article and Find Full Text PDF

Lumacaftor-ivacaftor is a CFTR (cystic fibrosis transmembrane conductance regulator) modulator combination recently approved for patients with cystic fibrosis (CF) homozygous for the Phe508del mutation. To evaluate the safety and effectiveness of lumacaftor-ivacaftor in adolescents (≥12 yr) and adults (≥18 yr) in a real-life postapproval setting. The study was conducted in the 47 CF reference centers in France.

View Article and Find Full Text PDF

Background: Respiratory viral infections lead to bronchial inflammation in patients with cystic fibrosis, especially during pulmonary exacerbations. The aim of this study was to determine the impact of viral-associated pulmonary exacerbations in children with cystic fibrosis and failure to improve forced expiratory volume in 1 s (FEV1 ) after an appropriate treatment.

Methods: We lead a pilot study from January 2009 until March 2013.

View Article and Find Full Text PDF

Background: Little data exist on causes of death in cystic fibrosis (CF) patients in the era of lung transplantation.

Methods: Deaths in CF patients in France (2007-2010) were identified using the French CF Registry and causes of deaths were determined based on medical files by a mortality adjudication committee.

Results: Of 256 deaths, half occurred after lung transplantation and were related to early or late complications of transplantation, whereas half occurred in patients who did not receive lung transplantation and were primarily related to respiratory failure or massive hemoptysis.

View Article and Find Full Text PDF

Notch signaling is altered in many cancers. Our previous findings in primary pediatric ependymoma support a role for NOTCH in glial oncogenesis. The present study evaluates the γ-secretase inhibitor RO4929097 in glial tumor models.

View Article and Find Full Text PDF

Transient remissions (TRs) of acute leukemia without any antileukemic treatment are extremely rare events. We report 2 TRs of acute lymphoblastic leukemia and acute myeloid leukemia in a 2-year-old boy and a 12-year-old girl, respectively, both associated with red blood cells and platelets transfusions and infection. These 2 factors are frequently present in previously reported cases and could induce a stimulation of the immune system although the underlying mechanisms of TRs are still unknown.

View Article and Find Full Text PDF

Chronic inflammation is a hallmark of cystic fibrosis (CF) lung disease and airway epithelium damage and remodelling are important components of lung pathology progression in CF. Whether this remodelling is secondary to deleterious infectious and inflammatory mediators, or to alterations of CF human airway epithelial (HAE) cells, such as their hyper inflammatory phenotype or their basic cystic fibrosis transmembrane conductance regulator (CFTR) default, remains debated. In this study, we evaluated the involvement of alterations of CF HAE cells in airway epithelium remodelling.

View Article and Find Full Text PDF

The main goal of the present study was to characterise the social cognition abilities of French children with ADHD, in terms of their understanding of people's recursive mental states and their irony comprehension. We hypothesised that these children have difficulty understanding second-order false beliefs and ironic remarks, owing to the executive dysfunction that is characteristic of ADHD. We therefore conducted an experiment in which children with ADHD and typically developing matched controls performed second-order false-belief and executive function tasks.

View Article and Find Full Text PDF

Objective: To assess the etiological role and the clinical characteristics of HRV and HEV infections in pediatric patients hospitalized for acute respiratory tract infections (ARTIs).

Methods: RT-qPCR assays and molecular sequencing methods were used to identify HRV and HEV strains in nasopharyngeal aspirates of 309 hospitalized pediatric patients with microbiologically unexplained ARTIs and in 210 hospitalized pediatric patients without respiratory symptoms from September 2009 to June 2010 in France.

Results: Among the 309 ARTI cases, 15 HEV and 172 HRV strains were identified whereas only 1 HEV and 37 HRV strains were observed in control patients (187 vs.

View Article and Find Full Text PDF

Newly available molecular tools allow a sensitive detection of a broad panel of viruses in respiratory tract specimens. In the present study, the application of a multiplex RT-PCR DNA microarray in diagnosis and epidemiological survey of viral infections in infants hospitalized for bronchiolitis was assessed. One hundred and thirty-eight nasopharyngeal aspirates collected from October 2007 to September 2008 were tested by direct immunofluorescence and viral culture, a combination of referenced RT-PCRs and the DNA microarray.

View Article and Find Full Text PDF

A 5-year-old girl with hereditary spherocytosis presented with two episodes of transient ischemic attacks within a month. Cranial magnetic resonance imaging angiography revealed a left internal carotid artery and middle cerebral artery stenosis, with an extensive vascular mesh in the thalamic area indicative of moyamoya disease. Treatment consisted of supporting cerebral perfusion with blood transfusions, and splenectomy to prevent recurrence.

View Article and Find Full Text PDF

Background: Echovirus 30 (E-30) was responsible in France for a major aseptic meningitis outbreak during 2005 summer season. However, the virological mechanisms responsible for the periodic emergence of the epidemic strains remain to be investigated.

Objectives: To assess the genetic diversity of two genome regions, VP1 and 3Dpol, of echovirus 30 strains isolated during the 2005 aseptic meningitis outbreak in Champagne Ardenne (CA) area (France).

View Article and Find Full Text PDF
Article Synopsis
  • The study evaluated the long-term metabolic outcomes in children diagnosed with diabetes before age 6, comparing two insulin treatment methods: multiple daily injections (MDI) and continuous subcutaneous insulin infusion (CSII).
  • Results showed that children using CSII consistently had lower hemoglobin A1c levels than those on MDI, and CSII also significantly reduced the risk of severe hypoglycemia.
  • Overall, initiating treatment with CSII leads to improved metabolic control in young children with diabetes, with only a small percentage abandoning the method over time.
View Article and Find Full Text PDF

The aim of this study was to define the current demographic, clinical and prognostic characteristics of acute post-streptococcal glomerulonephritis (APSGN) in French Polynesia and to compare these features with those of other populations. Fifty children, all of whom were <15 years old and had been admitted to the Territorial Hospital of Papeete for APSGN between January 2005 and December 2007, were retrospectively enrolled in the study. Diagnostic criteria were microscopic or macroscopic haematuria, decreased C3 fraction of the complement and evidence of recent streptococcal infection.

View Article and Find Full Text PDF

Background: For a better understanding of the early stages of cystic fibrosis (CF), it is of major interest to study respiratory epithelial cells obtained as early as possible. Although bronchoalveolar lavage has been proposed for this purpose, nasal brushing, which is a much less invasive technique, has seldom been used in CF infants. The aim of the present study was to examine in a few infants the feasibility of a nasal brushing technique for studies of airway epithelial functions in very young CF infants.

View Article and Find Full Text PDF