Publications by authors named "Pellet P"

Background: Inhaled sedation during invasive mechanical ventilation in patients with acute respiratory distress syndrome (ARDS) has received increasing attention. However, inhaled sedation devices increase dead-space ventilation and an undesirable effect is the increase in minute ventilation needed to maintain CO removal. A consequence of raising minute ventilation is an increase in mechanical power (MP) that can promote lung injury.

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  • The study explores the genetic factors associated with the 14q32 duplication that affects the ATG2B/GSKIP genes, linked to various myeloid neoplasms in families.
  • Among 12 asymptomatic carriers and 52 affected patients, 75% of healthy carriers showed early signs of clonal hematopoiesis primarily due to TET2 mutations.
  • Two clonal expansion routes were identified: one leading to myeloproliferative neoplasms (MPN) driven by TET2 and RAS mutations, and the other to acute myeloid leukemia (AML) without prior MPN, with no DNMT3A mutations found in the cohort.
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  • Secukinumab, an IL-17A inhibitor, shows greater effectiveness than adalimumab and etanercept in treating moderate-to-severe plaque psoriasis and is assessed in conjunction with active psoriatic arthritis (PsA) over 52 weeks in the EXCEED study.
  • The study involved 853 patients, with 211 having moderate-to-severe psoriasis, revealing a lower discontinuation rate for secukinumab (5.5%) compared to adalimumab (17.8%).
  • Results indicate better outcomes for secukinumab, with 76.4% achieving ACR 20 response and 39.1% achieving PASI 100 response by week 50,
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Background: Head-to-head trials in psoriatic arthritis are helpful in guiding clinical decision making. The EXCEED study evaluated the efficacy and safety of secukinumab versus adalimumab as first-line biological monotherapy for 52 weeks in patients with active psoriatic arthritis, with a musculoskeletal primary endpoint of American College of Rheumatology (ACR) 20 response.

Methods: This parallel-group, double-blind, active-controlled, phase-3b, multicentre (168 sites in 26 countries) trial enrolled patients aged at least 18 years with active psoriatic arthritis.

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Objective: To report the 5-year efficacy and safety of secukinumab in the treatment of patients with psoriatic arthritis (PsA) in the FUTURE 1 study (NCT01392326).

Methods: Following the 2-year core trial, eligible patients receiving subcutaneous secukinumab entered a 3-year extension phase. Results are presented for key efficacy endpoints for the secukinumab 150-mg group (n = 236), including patients who escalated from 150 to 300 mg (approved doses) starting at week 156.

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Introduction: To assess the efficacy and safety of the subcutaneous (s.c.) secukinumab 150 mg with loading (150 mg) or without loading (150 mg no-load) regimen through 104 weeks in patients with active psoriatic arthritis (PsA) in the FUTURE 4 (NCT02294227) study.

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Objective: To assess the long-term (3 year) efficacy and safety of secukinumab in patients with active psoriatic arthritis (PsA) in the extension phase of the FUTURE 1 study (NCT01892436).

Methods: Following the 2-year core trial, eligible patients receiving subcutaneous secukinumab 150 or 75 mg entered a 3-year extension phase. Results are presented for key efficacy and safety endpoints at week 156.

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The precise diagnosis of an immunodeficiency is sometimes difficult to assess, especially due to the large spectrum of phenotypic variation reported among patients. Common variable immunodeficiency disorders (CVID) do not have, for a large part, an identified genetic cause. The identification of a causal genetic mutation is important to confirm, or in some cases correct, the diagnosis.

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Background: Familial Mediterranean fever (FMF) is an IL-1β-dependent autoinflammatory disease caused by mutations of Mediterranean fever (MEFV) encoding pyrin and characterized by inflammatory attacks induced by physical or psychological stress.

Objective: We investigated the underlying mechanism that links stress-induced inflammatory attacks with neutrophil activation and release of IL-1β-bearing neutrophil extracellular traps (NETs) in patients with FMF.

Methods: RNA sequencing was performed in peripheral neutrophils from 3 patients with FMF isolated both during attacks and remission, 8 patients in remission, and 8 healthy subjects.

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New allele HLA-B*37:58 differs from HLA-B*37:01:01 by one nucleotide at position 449 in exon 2.

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Chronic infection with HCV is a public health problem with approximately 170 million people infected worldwide. Interferon alpha (IFNα) sensitivity in liver and IL28B genotype has been identified as important determinants of HCV clearance in the setting of pegylated interferon/ribavirin treatment. Herein, we explored IFNα sensitivity in PBMC from 21 healthy donors and 21 HCV-infected patients treated with pegylated interferon/ribavirin and HCV nonstructural protein-3 inhibitors (i.

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Several forest understorey achlorophyllous plants, termed mycoheterotrophs (MHs), obtain C from their mycorrhizal fungi. The latter in turn form ectomycorrhizas with trees, the ultimate C source of the entire system. A similar nutritional strategy occurs in some green forest orchids, phylogenetically close to MH species, that gain their C via a combination of MH and photosynthesis (mixotrophy).

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Objective: Hepatocytes are susceptible to FAS-mediated apoptosis. The impact of polymorphisms in the FAS gene on histopathological features of HCV infection was therefore investigated.

Design/methods: Three single-nucleotide polymorphisms in the FAS promoter were assessed in 190 patients with chronic hepatitis C.

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Background: FTY720 is the first of a new drug class: sphingosine-1-phosphate receptor agonist. Its effect relates to the modulation of lymphocytes trafficking from blood and peripheral tissues to lymph nodes. This is the first study to evaluate the efficacy and safety of FTY720 in de novo renal transplantation.

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Background: FTY720 is the first of a new drug class: sphingosine-1-phosphate receptor agonist. Its effect relates to the modulation of lymphocytes trafficking from blood and peripheral tissues to lymph nodes. This is the first study to evaluate the efficacy and safety of FTY720 in de novo renal transplantation.

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We previously reported that patients homozygous for a specific mutation (M280) in the chemokine receptor CX3CR1 progressed to AIDS more rapidly than those with other genotypes. This deleterious effect would predict that a cohort of prevalent patients would be depleted in M280 carriers, because these patients would have disappeared before recruitment. This hypothesis is confirmed in this new study based on the French SEROCO cohort showing that patients homozygous for the M280 allele were rare among the seroprevalent group.

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We have previously shown that reduced expression of the fractalkine receptor, CX3CR1, is correlated with rapid HIV disease progression and with reduced susceptibility to acute coronary events. In order to elucidate the mechanisms underlying transcriptional regulation of CX3CR1 expression, we structurally and functionally characterized the CX3CR1 gene. It consists of four exons and three introns spanning over 18 kb.

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MIC molecules belong to the immunoglobulin superfamily, are encoded within the MHC region and are recognized by gamma/delta T-cell receptors. In humans, at least two functional genes (MIC-A* and MIC-B*) and two pseudogenes (MIC-C* and MIC-D*) exist. Functional MIC gene copies are characterized by a high degree of polymorphism, while pseudogenes bear several debilitating mutations either in the putative extracellular region or in the transmembrane region of the molecule.

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The hallmark of the classical major histocompatibility complex (MHC) class I molecules is their astonishing level of polymorphism, a characteristic not shared by the nonclassical MHC class I genes. A distinct family of MHC class I genes has been recently identified within the human MHC class I region. The MICA (MHC class I chain-related A) gene in this family is a highly divergent member of the MHC class I family and has a unique pattern of tissue expression.

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The p11 band of the short arm of chromosome 9 is involved in various cytogenetic alterations occurring in several malignant diseases. Using probes isolated from the 9p11 band in the study of a case of alpha-heavy-chain disease (MAL) with t(9;14)(p11;q32), we studied the DNA from seven malignant cell samples, including four cases of acute lymphoblastic leukemia with tdic(9;12)(p11;p12). Using pulsed-field electrophoresis analysis we demonstrated that the breakpoints were 3-300 kb distant from the original MAL breakpoint without clustering within the subset of leukemias with the tdic(9;12).

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Alpha heavy chain diseases (HCD) are lymphoproliferative disorders characterized by the production of truncated alpha immunoglobulin heavy chain without associated light chains, alpha HCD MAL is featured by multiple structural alterations of the alpha 1 productive gene and on original t(9;14)(p11;q32) translocation involving the other rearranged alpha 1 allele. We present here the structure of the der(9) chromosome. Sequence analysis provides evidence that the translocation occurred after local pairing of the two chromosomes mediated by an almost perfect nonameric sequence, followed by a staggered double-strand break of chromosome 14.

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The general principles underlying protein requirements are outlined and daily allowances for protein are derived appropriate to the various age and sex population subgroups of the United States. Median body weights are however used for all age groups of the population rather than the desirable body weights used previously for adults. Following the recommendations of the FAO/WHO/UNU international working group, the protein requirement for male and female adults was taken as 0.

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