Publications by authors named "GROS H"

Unlabelled: Pancreatic ductal adenocarcinoma (PDAC) is the deadliest major cancer and has a profoundly immunosuppressive tumor microenvironment (TME). Previous studies have shown that inhibition of the E1 enzyme, which catalyzes the small ubiquitin-like modifiers (SUMO), with the small molecule TAK-981, can reprogram the TME to enhance immune activation and suppress tumor growth. We found that the CD-155/TIGIT pathway, a key regulator of immune evasion in PDAC, is influenced by SUMOylation.

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What can false memories tell us about the structure of mental representations of arithmetic word problems? The semantic congruence model describes the central role of world semantics in the encoding, recoding, and solving of these problems. We propose to use memory tasks to evaluate key predictions of the semantic congruence model regarding the representations constructed when solving arithmetic word problems. We designed isomorphic word problems differing only by the world semantics imbued in their problem statement.

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There is an ongoing debate in the scientific community regarding the nature and role of the mental representations involved in solving arithmetic word problems. In this study, we took a closer look at the interplay between mental representations, drawing production, and strategy choice. We used dual-strategy isomorphic word problems sharing the same mathematical structure, but differing in the entities they mentioned in their problem statement.

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Article Synopsis
  • A clinical trial was conducted to assess the effectiveness and safety of dexamethasone (DEX) alone versus combined with tocilizumab (TCZ) in patients with moderate-to-severe COVID-19 pneumonia requiring oxygen support.
  • At day 14, the rates of mechanical ventilation or death were similar between the DEX group (14%) and the TCZ+DEX group (12%), indicating no significant improvement from the combination treatment.
  • Despite no clear benefits in reducing mechanical ventilation or mortality with the TCZ+DEX treatment, both treatments had similar safety profiles; however, definitive conclusions are limited due to the broad confidence intervals in the results.
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Background: With changes in T and N categories the 8th edition of the AJCC/UICC TNM staging system for pancreatic cancer resulted in improved prognostic staging, but inconsistencies were observed with specific stage groups. Tumour grading remains disregarded in prognostic staging. We aimed to validate the current staging system and to investigate the possibility of further optimization by integration of grading.

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We argue that what we count has a crucial impact on how we count, to the extent that even adults may have difficulty using elementary mathematical notions in concrete situations. Specifically, we investigate how the use of certain types of quantities (durations, heights, number of floors) may emphasize the ordinality of the numbers featured in a problem, whereas other quantities (collections, weights, prices) may emphasize the cardinality of the depicted numerical situations. We suggest that this distinction leads to the construction of one of two possible encodings, either a cardinal or an ordinal representation.

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Article Synopsis
  • Tocilizumab, an anti-interleukin-6 receptor treatment, showed potential benefits for severe COVID-19 pneumonia when given timely as a single 400 mg dose.
  • In a study of 246 patients, those treated with tocilizumab had significantly better outcomes compared to those who did not receive the medication, with a lower rate of mortality and ventilatory support needed.
  • The results indicated that tocilizumab could improve survival without the need for mechanical ventilation, making it a promising option for severe COVID-19 patients.
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  • A study conducted at Pitié-Salpêtrière Hospital in Paris aimed to identify early prognostic factors for COVID-19 patients to improve management in hospital settings.
  • The study involved 152 patients and used logistic regression models to evaluate factors influencing the likelihood of ICU transfer or death within 14 days of admission.
  • Key factors identified included older age, poorer respiratory status, higher CRP levels, and lower lymphocyte counts, which contributed to a scoring system predicting patient risk levels for ICU transfer or death.
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Can our knowledge about apples, cars, or smurfs hinder our ability to solve mathematical problems involving these entities? We argue that such daily-life knowledge interferes with arithmetic word problem solving, to the extent that experts can be led to failure in problems involving trivial mathematical notions. We created problems evoking different aspects of our non-mathematical, general knowledge. They were solvable by one single subtraction involving small quantities, such as 14 - 2 = 12.

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Objective: In the obstetric medicine movement and in response to requests for appointments in internal medicine by obstetricians and midwives, we created an internal medicine consultation within the maternity ward of our General Hospital, and provide feedback after 1 year.

Methods: This retrospective descriptive study took place at the Robert Ballanger Intercommunal Hospital Center in Aulnay-sous-Bois in Seine-Saint-Denis (France) between 3rd March 2016 and 9th March 2017, the first year of the internal medicine consultation, one afternoon every 15 days, in the maternity level 2b.

Results: Out of 121 appointments, 93 consultations were conducted for 63 patients.

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Objectives: The first objective of this qualitative component of a mixed-methods study is to provide a descriptive account of adult asylum seekers' experience of detention in Canadian immigration detention centers. The second objective is to identify the main underlying factors accounting for their reported feelings of distress.

Methods: Researchers interviewed 81 adult asylum seekers held in two Canadian immigration detention centers concerning their experience of detention.

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Objectives: Systemic lupus erythematosus (SLE) is a disease requiring long-term follow-up. Most studies published in the literature concerned teaching hospitals. We wanted to study a population of SLE patients, their follow-up and therapeutic modalities in a general hospital in order to evaluate professional practices.

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Introduction: The histiocytic necrotizing lymphadenitis or Kikuchi-Fujimoto's disease is characterized by a lymph node inflammation whose similarity with systemic lupus is generally admitted.

Case Report: Our description of two familial cases aims at raising the hypothesis of the existence of a genetic background in this disease following the example of what is observed in the autoimmune diseases.

Conclusion: Pathophysiology of Kikuchi-Fujimoto's disease is probably multifactorial and may include predisposing genetic background and a possible infectious triggering event.

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Introduction: Sickle cell disease is a multi-faceted disease, which can affect all organs. Here, we report the case of a young woman whose clinical presentation was confusing.

Case Report: An 18-year-old patient from Martinique in Caribbean area presented to the emergency room with widespread pain, as part of a vaso-occlusive crisis.

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Background: Obesity is suggested to reduce postoperative bleeding in patients undergoing cardiac surgery with cardiopulmonary bypass (CPB) but perioperative hemostasis variations have not been studied. Therefore, we investigated the effects of severe obesity (body mass index [BMI] ≥35kg/m(2)) on chest tube output (CTO) and hemostasis in patients undergoing cardiac surgery with CPB.

Materials And Methods: We prospectively investigated 2799 consecutive patients who underwent coronary and/or valve surgery using CPB between 2008 and 2012.

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Article Synopsis
  • This study investigates the relationship between fibrinogen levels and postoperative bleeding in cardiac surgery patients who underwent cardiopulmonary bypass, involving 1,956 participants.* -
  • It found that patients with excessive bleeding had lower fibrinogen levels upon admission to the ICU, with a significant correlation between Day 0 fibrinogen levels and chest tube output within the first 24 hours.* -
  • The research concluded that fibrinogen levels measured on the day of ICU admission can effectively predict the risk of excessive postoperative bleeding, suggesting a potential need for using fibrinogen concentrates to manage blood loss.*
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Background: Each year, thousands of cases of uncomplicated malaria are imported into Europe by travellers. Atovaquone-proguanil (AP) has been one of the first-line regimens used in France for uncomplicated malaria for almost ten years. While AP's efficacy and tolerance were evaluated in several trials, its use in "real life" conditions has never been described.

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Introduction: We studied the impact of a weekly multidisciplinary staff meeting (MSM) on the quality of antibiotherapy for bone and joint infections in orthopedic surgery, as part of professional practice assessment.

Materials And Methods: We retrospectively studied the file of patients hospitalized for bone and joint infection. We compared antibiotherapy compliance to good use (bacteriology, dose, length of treatment, length of adaptation to microbiology), and outcome at six months for patients with bone and joint infections, before (March 2007 to March 2009) and after (March 2009 to March 2011) implementation of the multidisciplinary staff meeting.

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Objective: The study's objective was to describe the notification methods of positive blood cultures and analyse the impact of recommendations made by an infectious disease specialist on the appropriateness of antibiotherapy.

Method: We included all patients with positive blood cultures, from 12 different hospitals (including six with mobile infectious disease teams: MIDT) during a seven-day period. Medical records were retrospectively analysed to determine the delivered antibiotic treatment and the notification method of positive blood culture.

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Skin-brain signalling in itch reactions has been demonstrated with neuroimaging techniques showing specific brain activation. With positron emission tomography (PET), the itch model used must be adapted to technical and practical constraints. The technique of itch induction by histamine iontophoresis enables modulation of the sensation via the electrical charge applied.

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Aim: It has long been a matter of debate whether recovery from aphasia after left perisylvian lesion is mediated by perilesional left hemispheric regions or by right homologous areas. To investigate the neural substrates of aphasia recovery, a longitudinal study in patients after a left single perisylvian stroke was performed.

Methods: Thirteen aphasic patients were H2(15)O PET-scanned twice at a one year interval during a word generation task.

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The aim of the study was to investigate, with an rTMS/PET protocol, the after-effects induced by 1-Hz repetitive transcranial magnetic stimulation (rTMS) in the regional cerebral blood flow (rCBF) of the primary motor cortex (M1) contralateral to that stimulated during a movement. Eighteen healthy subjects underwent a baseline PET scan followed, in randomized order, by a session of Real/Sham low-frequency (1 Hz) subthreshold rTMS over the right M1 for 23 min. The site of stimulation was fMRI-guided.

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