71 results match your criteria: "University Nantes[Affiliation]"

For most patients with childhood myelodysplastic syndrome (cMDS), allogeneic hematopoietic stem cell transplantation (allo-HSCT) remains the only curative option. In the case of increased blasts (cMDS-IB), the benefit of pretransplant cytoreductive therapy remains controversial. In this multicenter retrospective study, the outcomes of all French children who underwent allo-HSCT for cMDS reported in the SFGM-TC registry between 2000 and 2020 were analyzed ( = 84).

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Non-coding RNAs (ncRNAs) are important regulators of gene expression. They are expressed not only in cells, but also in cell-derived extracellular vesicles (EVs). The mechanisms controlling their loading and sorting remain poorly understood.

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  • The DIP2 gene, first found in fruit flies, is crucial for neuron branching and regeneration, with vertebrate versions (DIP2A, DIP2B, and DIP2C) being highly conserved in the central nervous system.
  • Research showed that mutations in DIP2C are linked to developmental delays in expressive language and speech articulation in 23 affected individuals.
  • Alongside developmental issues, some individuals with DIP2C variants also presented with various cardiac defects and minor facial anomalies, highlighting a connection between the gene's loss-of-function and neurocognitive and physical phenotypes.
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Acne microbiome: From phyla to phylotypes.

J Eur Acad Dermatol Venereol

April 2024

CHU Nantes, Bacteriology Department, INCIT, UMR 1302, University Nantes, Nantes, France.

Acne vulgaris is a chronic inflammatory skin disease with a complex pathogenesis. Traditionally, the primary pathophysiologic factors in acne have been thought to be: (1) altered sebum production, (2) inflammation, (3) excess keratinization and (4) colonization with the commensal Cutibacterium acnes. However, the role of C.

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Background: We recently demonstrated in a randomized controlled trial (APOMORPHEE, NCT02940912) that night-time only subcutaneous apomorphine infusion improves sleep disturbances and insomnia in patients with advanced Parkinson's disease and moderate to severe insomnia.

Objectives: To identify the best candidates for receiving night-time only subcutaneous apomorphine infusion in routine care.

Methods: In this post-hoc analysis of APOMORPHEE, we compared the characteristics of patients according to whether they chose to continue night-time only subcutaneous apomorphine infusion at the end of the study period or not.

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Introduction: Melanoma is the deadliest of all the skin cancers and its incidence is increasing every year in Europe. Patients with melanoma often present late to the specialist and treatment is delayed for many reasons (delay in patient consultation, misdiagnosis by general practitioners, and/or limited access to dermatologists). Beyond this, there are significant inequalities in skin cancer between population groups within the same country and between countries across Europe.

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Background: Melanoma is one of the most fatal forms of skin cancer. Defining relevant biomarkers to predict treatment outcome based on immune checkpoint inhibitors (ICIs) is needed in order to increase overall survival of metastatic melanoma patients (MM).

Objectives: This study compared different machine learning models in terms of performance to identify biomarkers from clinical diagnosis and follow-up of MM patients, to predict treatment response to ICIs under real-life conditions.

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Background: Acne, a commonly treated skin disease, requires patient-centered management due to its varying presentations, chronicity, and impact on health-related quality of life. Despite this, evidence-based clinical guidelines focus primarily on clinical severity of facial acne, omitting important patient- and disease-related factors, including ongoing management.

Objectives: To generate recommendations to support patient-centered acne management, which incorporate priority and prognostic factors beyond conventional clinical severity, traditionally defined by grading the appearance and extent of visible lesions.

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Bi-allelic SNAPC4 variants dysregulate global alternative splicing and lead to neuroregression and progressive spastic paraparesis.

Am J Hum Genet

April 2023

National Institutes of Health Undiagnosed Diseases Program, Common Fund, Office of the Director, National Institutes of Health, Bethesda, MD, USA; Human Biochemical Genetics Section, Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA. Electronic address:

The vast majority of human genes encode multiple isoforms through alternative splicing, and the temporal and spatial regulation of those isoforms is critical for organismal development and function. The spliceosome, which regulates and executes splicing reactions, is primarily composed of small nuclear ribonucleoproteins (snRNPs) that consist of small nuclear RNAs (snRNAs) and protein subunits. snRNA gene transcription is initiated by the snRNA-activating protein complex (SNAPc).

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A Comparative and Study of Osteogenicity by Using Two Biomaterials and Two Human Mesenchymal Stem Cell Subtypes.

Front Cell Dev Biol

May 2022

INSERM, UMR 1238, PHY-OS, Bone Sarcomas and Remodeling of Calcified Tissues, Faculty of Medicine, Nantes University Nantes, Nantes, France.

Bone repair induced by stem cells and biomaterials may represent an alternative to autologous bone grafting. Mesenchymal stromal/stem cells (MSCs), easily accessible in every human, are prototypical cells that can be tested, alone or with a biomaterial, for creating new osteoblasts. The aim of this study was to compare the efficiency of two biomaterials-biphasic calcium phosphate (BCP) and bioactive glass (BG)-when loaded with either adult bone marrow mesenchymal stem cells (BMMSCs) or newborn nasal ecto-mesenchymal stem cells (NE-MSCs), the latter being collected for further repair of lip cleft-associated bone loss.

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  • A collaboration of experts from the EDF, EADO, and EORTC has developed guidelines for diagnosing and treating cutaneous melanoma based on extensive literature reviews and clinical experience.
  • Melanomas are typically excised with safety margins of 1 to 2 cm, and sentinel lymph node dissection is recommended for certain patients, although its survival benefit is still uncertain.
  • Treatment for advanced stage III/IV melanoma involves a multidisciplinary approach, with immunotherapy or targeted therapies based on specific genetic mutations being the primary options, reflecting the rapidly evolving nature of melanoma treatment.
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  • Cutaneous melanoma (CM) is one of the most serious skin cancers, responsible for 90% of skin cancer deaths, prompting collaboration among leading European dermatology organizations to create diagnostic and treatment guidelines.
  • Melanoma diagnosis should be confirmed clinically with dermatoscopy, and histopathological examination is essential if melanoma is suspected; advanced imaging is only recommended for later-stage melanomas.
  • A proposed structured follow-up scheme is designed to monitor for relapses, though more research is needed to determine the ideal frequency of examinations; these guidelines are effective until the end of 2024.
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The impact of pre-transplant anti-severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) vaccine in 20 recipients of allogeneic hematopoietic stem cell transplantation (Allo-HSCT) and/or their donors is reported here, showing that the persistence of anti-SARS-CoV-2 antibodies can be detected in almost all patients, whatever the type of vaccine used, and up to 9 months post transplant. Also, an anti-SARS-CoV-2 spike glycoprotein CD3+ T-cell response could be detected in six (35%) of 17 evaluable patients. This study provides a rationale to consider anti-SARS-CoV-2 vaccination of both recipients and donors before Allo-HSCT.

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Impact of COVID-19-Related Lockdown on Delivery and Perinatal Outcomes: A Retrospective Cohort Study.

J Clin Med

January 2022

Obstetrics, and Fetal Medicine and Surgery Department, Hôpital Necker-Enfants Maladies, AP-HP, 75007 Paris, France.

Objective: The magnitude and direction of effects on pregnancy outcomes of the lockdown imposed during COVID-19 have been uncertain and debated. Therefore, we aimed to quantify delivery and perinatal outcomes during the first nationwide lockdown due to the COVID-19 pandemic compared with the same durations of time for the pre- and post-lockdown periods.

Study Design: This was a retrospective cohort study of six university hospital maternity units distributed across France, each of which serves as the obstetric care referral unit within its respective perinatal network.

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  • * In a French study involving 235 infertile women undergoing their first IVF/ICSI cycle, results showed a negative correlation between AMH levels and the required gonadotropin doses, while a positive correlation existed with the number of oocytes retrieved.
  • * The study concluded that using serum AMH levels to determine the initial gonadotropin dose can help personalize IVF treatment and improve outcomes, as evidenced by a 28.5% clinical pregnancy rate following the first embryo transfer.
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Objective: The effect of lockdowns during the coronavirus (COVID-19) pandemic on pregnancy outcomes remains uncertain. We aimed to evaluate the association between the COVID-19-related lockdown and pregnancy outcomes in maternity hospitals in France.

Study Design: This was a retrospective cohort study from six tertiary referral hospitals in different regions of France.

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Aims: Tricuspid regurgitation (TR) is associated with significant morbidity and mortality. Its independent prognostic role has been repeatedly demonstrated. However, this valvular heart condition is largely undertreated because of the increased risk of surgical repair.

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Acne is a multifactorial inflammatory dermatose that affects all age categories from teenagers to adults, resulting in important psychological impacts. Multiple hypotheses currently attempt to decrypt the physiopathology of this disease, and four main actors were identified as highly implicated in it: hyperkeratinization of the pilosebaceous follicle, hyperseborrheae, host factors (innate immunity) and skin microbiota. In this letter, we present results illustrating the impact of skin microbiota on inflammatory skin response, and how far the proper balance between each bacterial community, especially C.

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Hypertension is common in kidney transplantation recipients and may be difficult to treat. Factors present before kidney transplantation, related to the transplantation procedure itself and factors developing after transplantation may contribute to blood pressure (BP) elevation in kidney transplant recipients. The present consensus is based on the results of three recent systematic reviews, the latest guidelines and the current literature.

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The gambling industry has developed many types of gambling on Internet in recent years. Gambling is a social activity for a majority of the world population, but problem gambling (PG) can emerge. The trajectories of gamblers from initiation to PG development are influenced by many variables, including individual and environmental variables and also variables linked to the gambling characteristics.

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Background: Emerging data suggest that the combination of MEK inhibitors and immunotherapeutic agents may result in improved efficacy in melanoma. We evaluated whether combining MEK inhibition and immune checkpoint inhibition was more efficacious than immune checkpoint inhibition alone in patients with previously untreated BRAF wild-type advanced melanoma.

Patients And Methods: IMspire170 was an international, randomized, open-label, phase III study.

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Our understanding of the role of Cutibacterium acnes in the pathophysiology of acne has recently undergone a paradigm shift: rather than C. acnes hyperproliferation, it is the loss of balance between the different C. acnes phylotypes, together with a dysbiosis of the skin microbiome, which results in acne development.

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Background: The incidence of skin cancers has been increasing steadily over the last decades. Although there have been significant breakthroughs in the management of skin cancers with the introduction of novel diagnostic tools and innovative therapies, skin cancer mortality, morbidity and costs heavily burden the society.

Objective: Members of the European Association of Dermato-Oncology, European Academy of Dermatology and Venereology, International Dermoscopy Society, European Dermatology Forum, European Board of Dermatovenereology of the European Union of Medical Specialists and EORTC Cutaneous Lymphoma Task Force have joined this effort to emphasize the fundamental role that the specialist in Dermatology-Venereology has in the diagnosis and management of different types of skin cancer.

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STW5 (Iberogast®) for constipation in Parkinson's disease.

Rev Neurol (Paris)

March 2021

Inserm, CIC-04, 44093 Nantes, France; University Nantes, 44093 Nantes, France; Department of Neurology, CHU de Nantes, 44093 Nantes, France. Electronic address:

Background: Chronic constipation is one of the most frequent non-motor symptoms in Parkinson's disease (PD), and impairs patients' quality of life.

Objective: The aim of this pilot study was to assess the efficacy and the tolerability of STW5, a phytotherapeutic agent composed of nine plant extracts, for the treatment of constipation in patients with PD.

Methods: We carried out an open monocentric study of STW5 in the treatment of constipation in parkinsonian patients.

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