1,934 results match your criteria: "Paris Diderot University.[Affiliation]"

2q33 Deletions Underlying Syndromic and Non-syndromic CTLA4 Deficiency.

J Clin Immunol

November 2024

Study Center for Primary Immunodeficiencies, Necker Hospital for Sick Children, Assistance Publique Hôpitaux de Paris (AP-HP), Paris, EU, France.

Purpose: CTLA4 deficiency is an inborn error of immunity (IEI) due to heterozygosity for germline loss-of-function variants of the CTLA4 gene located on chromosome 2q33.2. CTLA4 deficiency underlies pleiotropic immune and lymphoproliferation-mediated features with incomplete penetrance.

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Article Synopsis
  • - Metabolic dysfunction-associated steatotic liver disease (MASLD) is prevalent among obese individuals and shows differences between sexes. A study sought to create a noninvasive blood test using mid-infrared (MIR) metabolic fingerprinting to diagnose metabolic dysfunction-associated steatohepatitis (MASH) in those with severe obesity.
  • - The study involved 382 patients undergoing bariatric surgery, with liver biopsies assessed to establish a scoring algorithm based on MIR spectroscopy. In women, MASH was diagnosed in 14.3% of cases, showing high sensitivity (86%) and specificity (81%) for correctly identifying the condition.
  • - For men, the test's performance was notably less effective, with a MASH diagnosis
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Objective: The oculomotor cistern (OMC) is a meningeal cuff filled with CSF that contains the oculomotor nerve (cranial nerve [CN] III) at the level of the lateral wall of the cavernous sinus. Only a few studies have investigated the involvement of the OMC by pituitary adenomas (pituitary neuroendocrine tumors [PitNETs]), mainly with relatively small case series. The aim of this study was to perform a histomorphological description of the OMC and systematically analyze its involvement by PitNETs from radiological, clinical, and surgical perspectives.

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Incidence, Risk Factors, and Long-Term Outcomes for Extubation Failure in ICU in Patients With Obesity: A Retrospective Analysis of a Multicenter Prospective Observational Study.

Chest

September 2024

Anesthesia and Critical Care Department B, Saint Eloi Teaching Hospital, PhyMedExp, University of Montpellier, INSERM U1046, CNRS UMR 9214, and Centre Hospitalier Universitaire Montpellier, Montpellier, France. Electronic address:

Background: To our knowledge, no large observational study has compared the incidence and risk factors for extubation failure within 48 h and during ICU stay in the same cohort of unselected critically ill patients with and without obesity.

Research Question: What are the incidence and risk factors of extubation failure in patients with and without obesity?

Study Design And Methods: In the prospective multicenter observational FREE-REA study in 26 ICUs, the primary objective was to compare the incidence of extubation failure within 48 h in patients with and without obesity. Secondary objectives were to describe and to identify the independent specific risk factors for extubation failure using first a logistic regression model and second a decision tree analysis.

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Beneath HMGA2 alterations in pleomorphic adenomas: Pathological, immunohistochemical, and molecular insights.

Hum Pathol

October 2024

Department of Pathology, Institut de Pathologie Multisite, Hospices Civils de Lyon, Hôpital Lyon Sud, Pierre-Bénite, France; University of Lyon, Université Lyon 1, Lyon, France; EMR3738, CICLY, Pierre-Bénite, France. Electronic address:

Aims: Most salivary gland neoplasms are distinguished by specific recurrent gene fusions. Recently, a subset of pleomorphic adenomas (PAs) originated from the parotid gland harboring the HMGA2:WIF1 fusion was described with a canalicular adenoma-like morphology and a greater propensity for recurrence and carcinomatous transformation.

Methods And Results: This study delineates the clinicopathological attributes of 54 cases of PAs exhibiting HMGA2 alterations, predominantly characterized by the HMGA2:WIF1 fusion, alongside a comparative analysis of their morphological and immunohistochemical profiles.

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Reference values for biochemical tests during pregnancy: analysis of the PRECAREbio Cohort and correlation with precarious status.

J Gynecol Obstet Hum Reprod

July 2024

Department of Obstetrics and Gynecology, Bichat-Beaujon Hospital, University Hospital Department (DHU) Risks in Pregnancy, Paris Diderot University, Paris, France. Electronic address:

Objective: To establish normal current values of various biochemical parameters during pregnancy in the northern area of Paris (France) in a subgroup from the PreCARE cohort and to study their changes according to the term of pregnancy, and to determine the influence of maternal precarity.

Design: The PreCAREbio cohort of pregnant women was defined in the PreCARE study, a multicenter cohort study.

Setting: Participants completed detailed questionnaires at enrolment and immediately postpartum.

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Critical insights into venoarterial extracorporeal membrane oxygenation outcomes in immunocompromised patients: addressing uncertainties in cause of death and treatment strategies. Author's reply.

Intensive Care Med

August 2024

Service de Médecine Intensive-Réanimation, Institut de Cardiologie, Assistance Publique des Hopitaux de Paris, Hôpital Pitié-Salpêtrière, 75013, Paris, France.

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Validation of predictive models for 90-day survival in immunocompromised patients with cardiogenic shock on venoarterial extracorporeal membrane oxygenation.

Intensive Care Med

July 2024

Service de Médecine Intensive-Réanimation Hôpital Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris Sorbonne Université, INSERM, UMRS_1166-ICAN, Institute of Cardiometabolism and Nutrition 47, Boule Vard de L'Hôpital, 75013, Paris, France.

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Rationale: For veno-arterial extracorporeal membrane oxygenation (ECMO), the femoral artery is the preferred cannulation site (femoro-femoral: Vf-Af). This results in retrograde aortic flow, which increases the left ventricular afterload and can lead to severe pulmonary edema and thrombosis of the cardiac chambers. Right axillary artery cannulation (femoral-axillary: Vf-Aa) provides partial anterograde aortic flow, which may prevent some complications.

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Risk factors for Nocardia infection among allogeneic hematopoietic cell transplant recipients: A case-control study of the Infectious Diseases Working Party of the European Society for Blood and Marrow Transplantation.

J Infect

June 2024

Institut Pasteur, Université Paris Cité, CNRS UMR 6047, Genetics of Biofilms Laboratory, 75015 Paris, France; Département de Maladies Infectieuses et Tropicales, AP-HP, Hôpital Saint-Louis, Lariboisière, F-75010 Paris, France.

Article Synopsis
  • Nocardiosis is a serious infection that can occur after hematopoietic cell transplantation (HCT), and this study aimed to identify its risk factors and the impact of certain preventive treatments.
  • A review of 64 cases of nocardiosis and 128 matched controls showed that factors like tacrolimus use, low lymphocyte counts, male sex, recent corticosteroid use, and previous CMV infections increased the risk of developing this infection.
  • Conversely, patients on trimethoprim-sulfamethoxazole prophylaxis had a significantly lower risk of nocardiosis; however, those who did develop it had poorer survival rates compared to controls.
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Venoarterial extracorporeal membrane oxygenation in immunocompromised patients with cardiogenic shock: a cohort study and propensity-weighted analysis.

Intensive Care Med

March 2024

Assistance Publique des Hopitaux de Paris, Service de Médecine Intensive-Réanimation, Institut de Cardiologie, Hôpital Pitié-Salpêtrière, 75013, Paris, France.

Article Synopsis
  • Immunocompromised patients receiving venoarterial extracorporeal membrane oxygenation (VA-ECMO) exhibit high mortality rates, with 70% dying within 90 days and 75% within a year.
  • Factors contributing to these outcomes include older age and elevated pre-ECMO lactate levels, indicating higher risk.
  • The study highlights severe complications such as hemorrhages and infections, with immunocompromised individuals having twice the risk of 90-day mortality compared to non-immunocompromised patients.
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  • About 25% of patients with common variable immunodeficiency disease (CVID) have enlarged spleens (splenomegaly), which can impact their immune profiles, and this study analyzed 11 such patients before and after splenectomy (spleen removal).
  • In a larger cohort of 89 CVID patients, those with splenomegaly showed significant differences in immune cell types compared to those without, including lower counts of certain T cells and B cells and higher activation of CD4 and CD8 T cells.
  • Post-splenectomy, there was an increase in overall lymphocyte counts, mainly B lymphocytes and CD8 T cells, indicating that while the spleen's removal helps restore some immune
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Objective: The aim of this study was to compare patient survival using sentinel lymph node (SLN) procedure and pelvic lymphadenectomy for stating early-stage high risk endometrial cancer.

Methods: Patients who underwent surgery for early-stage high risk endometrial cancer between 2010 and 2017 were extracted from the incidence registry of the SEER program. We identified patients who underwent SLN mapping.

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Background: Spondylodiscitis (SD), a rare disease in children, poses diagnostic challenges due to non-specific presenting symptoms, scarcity in incidence, and difficulty expressing pain in non-verbal children.

Method: A comprehensive search was conducted on three databases, including PubMed/Medline, Web of Science, and Scopus until March 2023. The inclusion criteria were studies that investigated the clinical characteristics, treatment, and complications of children's spondylodiscitis.

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Adipose tissue macrophage dysfunction is associated with a breach of vascular integrity in NASH.

J Hepatol

March 2024

Laboratory of Hepatology, CHROMETA Department, KU Leuven, Leuven, Belgium; Department of Gastroenterology and Hepatology, UZ Leuven, Leuven, Belgium. Electronic address:

Background & Aims: In non-alcoholic fatty liver disease (NAFLD), monocytes infiltrate visceral adipose tissue promoting local and hepatic inflammation. However, it remains unclear what drives inflammation and how the immune landscape in adipose tissue differs across the NAFLD severity spectrum. We aimed to assess adipose tissue macrophage (ATM) heterogeneity in a NAFLD cohort.

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Background: Intraoperative arterial hypotension (IOH) leads to increased postoperative morbidity. Norepinephrine is often use to treat IOH. The question regarding the mode of administration in either a bolus or continuous infusion remains unanswered.

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Importance: Drug reaction with eosinophilia and systemic symptoms (DRESS) is a rare but potentially fatal drug hypersensitivity reaction. To our knowledge, there is no international consensus on its severity assessment and treatment.

Objective: To reach an international, Delphi-based multinational expert consensus on the diagnostic workup, severity assessment, and treatment of patients with DRESS.

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Granulomatous disease is a serious complication of common variable immunodeficiency (CVID-GD) that occurs in 8-22% of these patients and can mimic sarcoidosis, with which it shares certain clinical, biological, and radiological features. However, few studies to date have compared the two pathologies immunologically and histologically. Therefore, we analyzed the immunological-histological findings for different tissue samples from ten patients with CVID-GD and compared them to those of biopsy-proven sarcoidosis.

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Platelets and neutrophils cooperate to induce increased neutrophil extracellular trap formation in JAK2V617F myeloproliferative neoplasms.

J Thromb Haemost

January 2024

University of Bordeaux, Institut national de la santé et de la recherche médicale, Biologie des maladies cardio-vasculaires, U1034, Pessac, France; Laboratory of Hematology, Bordeaux University Hospital, Pessac, France. Electronic address:

Article Synopsis
  • Neutrophils contribute to thrombosis by forming extracellular traps (NETs), and this process is observed in patients with myeloproliferative neoplasms (MPNs) with the JAK2V617F mutation.
  • The study explores if JAK2V617F neutrophils alone can cause thrombosis, and findings reveal that they need cooperation from mutated platelets to promote NETosis and subsequent thrombosis.
  • Additionally, aspirin treatment was shown to reduce NET formation and lung thrombosis in mouse models and lower NET marker levels in MPN patients treated with aspirin, highlighting its potential role in preventing thrombosis.
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Unlike for advanced liver fibrosis, the practical rules for the early non-invasive diagnosis of cirrhosis in NAFLD remain not well defined. Here, we report the derivation and validation of a stepwise diagnostic algorithm in 1568 patients with NAFLD and liver biopsy coming from four independent cohorts. The study algorithm, using first the elastography-based tests Agile3+ and Agile4 and then the specialized blood tests FibroMeter and CirrhoMeter, provides stratification in four groups, the last of which is enriched in cirrhosis (71% prevalence in the validation set).

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The "A Randomized Trial of Induction Versus Expectant Management" trial (ARRIVE trial) published in 2018 suggested that induction of labor can be considered a "reasonable option" for low-risk nulliparous women at ≥39 weeks of gestation. The study results led some professional societies to endorse the option for elective induction of labor at 39 weeks of gestation in low-risk nulliparas, and this has begun to change obstetrical practice. The ARRIVE trial provided valuable information supporting the benefits of induction of labor; however, the trial is insufficient to serve as the primary justification for widespread elective induction of labor at 39 weeks of gestation in low-risk nulliparas because of concerns about external validity.

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  • This study evaluates the usability and preference of self-injection devices for biologic drugs SB4 and SB5 compared to traditional injectors like Enbrel and Humira.
  • A systematic review looked at various studies, including surveys and clinical observations with input from healthcare professionals and patients in rheumatology, gastroenterology, and dermatology.
  • Findings show that SB4 and SB5 were preferred for their user-friendly features, such as button-free design and clear feedback during injection, which can enhance treatment adherence and should guide future medical device development.
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Tissue transcriptomics is used to uncover molecular dysregulations underlying diseases. However, the majority of transcriptomics studies focus on single diseases with limited relevance for understanding the molecular relationship between diseases or for identifying disease-specific markers. In this study, we used a normalization approach to compare gene expression across nine inflammatory skin diseases.

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Background And Objectives: Activation of the complement system is involved in the pathogenesis of anti-glomerular basement membrane (anti-GBM) disease. Glomerular deposits of complement 3 (C3) are often detected on kidney biopsies. The primary objective of this study was to analyze the prognostic value of the serum C3 level and the presence of C3 glomerular deposits in patients with anti-GBM disease.

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