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Hôpitaux universitaires Paris-Centre[A... Publications | LitMetric

539 results match your criteria: "Hôpitaux universitaires Paris-Centre[Affiliation]"

Genetic Landscape of a Cohort of 120 Patients with Diminished Ovarian Reserve: Correlation with Infertility.

Int J Mol Sci

November 2024

Unité de Génétique Moléculaire des Maladies Métaboliques et de la Reproduction, Hôpital Bicêtre, Faculté de Médecine Paris Saclay, INSERM U1193, 94275 Le Kremlin-Bicêtre, France.

Article Synopsis
  • Diminished ovarian reserve (DOR) and primary ovarian insufficiency (POI) significantly contribute to female infertility, with a recent study finding a genetic cause in 29.3% of POI cases.
  • A prospective study of 120 patients with unexplained DOR revealed a 24.2% diagnostic yield using advanced sequencing technology to identify genes related to various biological pathways.
  • Findings indicated that impaired oocyte quality is linked to meiosis/DNA repair genes, and the study supports the need for genetic testing as a routine part of infertility diagnosis and a potential predictor for progression to POI.
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Prognostic value of adding serum lactate to in-hospital mortality risk scores in out-of-hospital cardiac arrest complicating acute coronary syndrome.

Arch Cardiovasc Dis

November 2024

Department of Cardiology, Cochin Hospital, hôpitaux universitaires Paris Centre, AP-HP, 27, rue du Faubourg-Saint-Jacques, 75014 Paris, France; Paris Cardiovascular Research Centre (PARCC), Georges-Pompidou European Hospital, AP-HP, Inserm U970, 75015 Paris, France; Université de Paris, Paris, France.

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Article Synopsis
  • The study compares three bacterial strains from the same patient to understand how antimicrobial resistance affects evolution and fitness, specifically focusing on a resistant strain's genetic changes.
  • Whole-genome sequencing revealed that resistance to antibiotics like piperacillin-tazobactam and extended-spectrum cephalosporins was due to specific genetic mutations and loss of genes, but all strains had similar virulence levels in a mouse model.
  • The research suggests that while resistance mutations can arise, they may come with fitness costs that limit their successful spread in clinical settings, potentially explaining why certain resistant types are rarely observed in practice.
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Objective: Guidelines for the management of pediatric severe traumatic brain injury (TBI) recommend external ventricular drainage for CSF drainage as a first-tier treatment in the intracranial pressure (ICP) pathway. However, ventriculostomy in children can sometimes be challenging because of the small size of the lateral ventricles. External lumbar drainage (ELD) may be a useful alternative; therefore, the authors analyzed the outcome of a cohort of pediatric patients who underwent ELD to manage intracranial hypertension (ICH).

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Effect of Bee Venom on Glioblastoma Cancer: In Vitro and In Vivo Studies.

Molecules

August 2024

Laboratory of Applied Biotechnology (LBA3B), Azm Center for Research in Biotechnology and Its Applications, Department of Cell Culture, EDST, Lebanese University, Tripoli 1300, Lebanon.

Glioblastoma multiforme (GBM) is a highly aggressive and fatal primary brain tumor. The resistance of GBM to conventional treatments is attributed to factors such as the blood-brain barrier, tumor heterogeneity, and treatment-resistant stem cells. Current therapeutic efforts show limited survival benefits, emphasizing the urgent need for novel treatments.

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Clinical emergence of a novel extended-spectrum variant deriving from the OXY-1 β-lactamase.

Eur J Clin Microbiol Infect Dis

November 2024

Service de Bactériologie, Assistance Publique Hôpitaux de Paris, Hôpitaux Universitaires Paris Centre, Site Cochin, 27 rue du Faubourg Saint-Jacques, Paris, 75014, France.

Article Synopsis
  • Two clinical isolates of Klebsiella michiganensis from the same patient were genetically compared, revealing differing resistance profiles: one was resistant to piperacillin-tazobactam and intermediate to cefotaxime, while the other was resistant to ceftazidime but susceptible to piperacillin-tazobactam.
  • * A mutation in the bla gene, resulting in a L169M change in the Ω loop, was identified as a key factor in the resistance differences.
  • * Cloning experiments in E. coli demonstrated that this mutation allowed for increased resistance to ceftazidime and cefepime but reduced resistance to piperacillin-tazobactam, marking a novel discovery of how
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Article Synopsis
  • - The study examines the role of calcitonin gene-related peptide (CGRP) in critical COVID-19 patients, finding that levels of CGRP are elevated in both the plasma and lungs during the early stages of infection with SARS-CoV-2.
  • - CGRP and its stable analog, SAX, were found to inhibit the infection of bronchial cells by SARS-CoV-2 variants in a dose-dependent manner, suggesting that CGRP plays a protective role against the virus.
  • - The research indicates that increased CGRP levels may help in viral clearance by directly inhibiting SARS-CoV-2 replication, which opens potential avenues for CGRP-based therapies in managing COVID-19.
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Background: Brain injury is one of the most serious complications after cardiac arrest (CA). To prevent this phenomenon, rapid cooling with total liquid ventilation (TLV) has been proposed in small animal models of CA (rabbits and piglets). Here, we aimed to determine whether hypothermic TLV can also offer neuroprotection and mitigate cerebral inflammatory response in large animals.

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[Evaluation of medication self-administration feasibility in a university hospital: Clinical audits and recommendations].

Ann Pharm Fr

November 2024

Pharmacie, hôpitaux universitaires Paris Centre-Site Cochin, Assistance publique-Hôpitaux de Paris, 27, rue du Faubourg-Saint-Jacques, 75014 Paris, France; Pharmacy Department, Cochin Hospital (Assistance publique-Hôpitaux de Paris), Paris, France.

The French Health Authority recently published guidelines about patient self-administration of medications for voluntary hospitalized patients under medical supervision. This study aimed to assess medication management practices in our hospital and provide recommendations for self-administration medication. A prospective monocentric study was performed from January to June 2023, involving patient and nurse surveys based on the guidelines from the French Health Authority.

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Hematological features and alternate diagnoses in critically ill thrombotic antiphospholipid syndrome patients.

Clin Rheumatol

September 2024

Syndrome Des Anticorps Anti-Phospholipides Et Autres Maladies Auto-Immunes Systémiques Rares, Sorbonne Université, Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpital La Pitié-Salpêtrière, Institut E3M, Service de Médecine Interne 2, Centre de Référence National Lupus Systémique, Paris, France.

Article Synopsis
  • Severe thrombotic antiphospholipid syndrome (APS) significantly affects critical organs and has not been thoroughly studied in ICU patients, particularly regarding hematological issues.
  • A retrospective study in France tracked 134 APS patients in ICUs, revealing high rates of anemia (95%) and thrombocytopenia (93%), with low platelet counts linked to increased mortality.
  • The findings highlight the importance of understanding the causes of thrombocytopenia in APS patients, as conditions like thrombotic microangiopathy (TMA), heparin-induced thrombocytopenia (HIT), and disseminated intravascular coagulation (DIC) are prevalent in this population.
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Targeting ferritinophagy impairs quiescent cancer stem cells in acute myeloid leukemia in vitro and in vivo models.

Sci Transl Med

July 2024

Centre for Translational Research in Onco-Hematology, Faculty of Medicine, University of Geneva, and Swiss Cancer Centre Leman, 1206 Geneva, Switzerland.

Article Synopsis
  • Acute myeloid leukemia (AML) is a difficult-to-treat blood cancer, mainly due to the presence of leukemic stem cells (LSCs) that lead to treatment resistance and relapse.
  • This research focuses on how the quiescence (dormancy) of LSCs and related molecular mechanisms impact AML development, revealing that quiescent LSCs have a distinct gene signature and increased autophagic activity that helps them survive.
  • The study identifies nuclear receptor coactivator 4 (NCOA4) as a key player in iron metabolism for quiescent LSCs, showing that inhibiting NCOA4 can effectively target these cells without harming normal blood progenitors, highlighting its potential as
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is among the few pathogens that have not developed resistance to ß-lactam antibiotics despite decades of clinical use. The molecular basis of this long-lasting susceptibility has not been investigated, and it is not known whether specific mechanisms constrain the emergence of resistance. In this study, we first report ß-lactam tolerance due to the inactivation of the c-di-AMP phosphodiesterase GdpP.

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Background: A sepsis-like syndrome is known to occur after cardiac arrest, leading to cerebral infiltration by white blood cells (WBC). We hypothesized that pharmacological sequestration of WBC, and more specifically lymphocytes within lymphoid tissues, could reduce the cerebral infiltration by these inflammatory cells and subsequent acute brain injury in a porcine model of cardiac arrest. Lymphocyte sequestration was induced by the sphingosine-1 phosphate receptors agonist fingolimod.

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Background: Children with autism spectrum disorder (ASD) often require multiple interventions receiving general anesthesia during their lifetimes. However, a single negative experience may trigger and/or aggravate anxiety and subsequent development of unwanted behavior. This monocentric study assessed the compliance with mask induction of children with ASD who followed a preoperative preparation using behavioral training with positive reinforcement technique and use of mirroring technique.

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Infection in Patients With Anti-Granulocyte-Macrophage Colony-Stimulating Factor Autoantibodies: A Prospective Multicenter French Study.

Open Forum Infect Dis

June 2024

AP-HP, Département des Maladies Infectieuses et Tropicales, Hôpital Saint-Louis, Lariboisière, Paris, France.

Background: Nocardiosis, a bacterial opportunistic infection caused by spp, has recently been reported in patients with anti-granulocyte-macrophage colony-stimulating factor (GM-CSF) autoantibodies, but insufficient data are available about disease presentation, outcomes, and occurrence of autoimmune pulmonary alveolar proteinosis (aPAP) in this population.

Methods: We performed a prospective, multicenter, nationwide study in France and included patients with a infection who had anti-GM-CSF autoantibodies. We describe their clinical, microbiological, and radiological characteristics, and their outcome at 1 year of follow-up.

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Outcomes of thoracic endometriosis in pregnant women.

Fertil Steril

October 2024

Service de chirurgie thoracique, Hôpital Cochin, Hôpitaux universitaires Paris Centre, Paris, France; Université Paris Cité, Paris, France.

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Little is known about the effects of CO insufflation (CDI) on cerebral oxygen saturation (CrSO) during laparoscopy in the pediatric population. In children undergoing robotic-assisted laparoscopic pyeloplasty (RALP), we prospectively assessed the effects of CDI using standard monitoring and cerebral near-infrared spectroscopy (NIRS). We also explored whether a correlation existed between CrSO and parameters known to affect cerebral blood flow.

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Article Synopsis
  • Patients with hematological malignancies face high risks of serious complications, and this study aimed to assess how hyperoxemia (high levels of oxygen in the blood) impacts mortality rates within 28 days in critically ill individuals.
  • An analysis of data from over 11,000 patients revealed a U-shaped relationship between arterial oxygen levels (PaO) and mortality, indicating that both low and high oxygen levels can increase the risk of death.
  • The study found that excessive use of oxygen was significantly linked to increased mortality rates, especially in certain patient groups, highlighting the importance of careful oxygen management in these critically ill patients.
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Article Synopsis
  • A retrospective study conducted in a medical ICU from 2016 to 2020 examined cases of bloodstream infections (BSI) caused by Klebsiella pneumoniae, focusing on a hypervirulent strain (hvKP).
  • Out of 70 patients with K. pneumoniae BSI, 9 (13%) were identified with hvKP, with a significant number (56%) having pneumonia as the cause of the infection.
  • The study highlighted that a considerable portion of hvKP-BSI patients were homeless (56%), and while the 30-day mortality rate was high (44%), it did not significantly differ from that of classical Klebsiella pneumoniae BSI (cKP).
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Article Synopsis
  • Group B Streptococcus (GBS), particularly the capsular serotype III called CC17, is a major cause of serious infections like bacteremia and meningitis in newborns, being labeled as a hypervirulent clone.
  • The study found that CC17 strains are engulfed (phagocytosed) more effectively by human monocytes and macrophages compared to non-CC17 strains, due to enhanced attachment facilitated by specific proteins (HvgA and PI-2b pilus).
  • Despite being phagocytosed more efficiently, both CC17 and non-CC17 strains survive similarly within immune cells, suggesting that CC17's enhanced phagocytosis might help it evade the immune system and persist in the
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A surgical series on endometriosis-related diaphragmatic hernia.

Gen Thorac Cardiovasc Surg

October 2024

Service de Chirurgie Thoracique, Hôpitaux Universitaires Paris Centre, AP-HP 27, rue Faubourg Saint Jacques, 75014, Paris Cedex 14, France.

Background: Thoracic endometriosis syndrome gives rise to various clinical and radiological manifestations. We reviewed the records of patients operated for intrathoracic migration of abdominal viscera through a diaphragmatic hernia secondary to thoracic endometriosis.

Methods: We retrospectively reviewed the single-center prospective collected database of all patients operated for thoracic endometriosis during the twenty years.

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Thermodynamic consequences of a three-hour long anoxia were investigated on the isolated mammalian rat myocardium. The anoxic heart operated in a far-from-equilibrium manner as attested by the non-linearity between the thermodynamic force and the thermodynamic flow. When subjected to slight fluctuations due to anoxia, the open far-from-equilibrium cardiac system presented a thermodynamic bifurcation at ~ 60 minutes of anoxia.

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Low rate of periprosthetic femoral fracture with the Hueter anterior approach using stems cemented according to the 'French paradox'.

Bone Joint J

March 2024

Department of Orthopaedic and Reconstructive Surgery, Hôpitaux Universitaires Paris Centre (HUPC), Site Cochin-Port Royal, Assitance Publique-Hôpitaux de Paris (AP-HP), Université Paris Cité, Paris, France.

Aims: The aim of this retrospective study was to assess the incidence of early periprosthetic femoral fracture (PFF) associated with Charnley-Kerboull (CK) femoral components cemented according to the 'French paradox' principles through the Hueter anterior approach (HAA) in patients older than 70 years.

Methods: From a prospectively collected database, all short CK femoral components implanted consecutively from January 2018 to May 2022 through the HAA in patients older than 70 years were included. Exclusion criteria were age below 70 years, use of cementless femoral component, and approaches other than the HAA.

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