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León-Janampa N, Boennec N, Le Tilly O, Ereh S, Herbet G, Moreau A, Gatault P, Longuet H, Barbet C, Büchler M, Baron C, Gaudy-Graffin C, Brand D, Marlet J. Relevance of Tacrolimus Trough Concentration and Hepatitis E virus Genetic Changes in Kidney Transplant Recipients With Chronic Hepatitis E. Kidney Int Rep 2024; 9:1333-1342. [PMID: 38707810 PMCID: PMC11069011 DOI: 10.1016/j.ekir.2024.01.054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 01/26/2024] [Accepted: 01/29/2024] [Indexed: 05/07/2024] Open
Abstract
Introduction Hepatitis E virus (HEV) can cause chronic infection (≥3 months) and cirrhosis in immunocompromised patients, especially kidney transplant recipients. Low alanine aminotransferase (ALT) levels and high HEV intrahost diversity have previously been associated with evolution toward chronicity in these patients. We hypothesized that additional clinical and viral factors could be associated with the risk of chronic HEV infection. Methods We investigated a series of 27 kidney transplant recipients with HEV infection, including 20 patients with chronic hepatitis E. Results High tacrolimus trough concentration at diagnosis was the most relevant marker associated with chronic hepatitis E (9.2 vs. 6.4 ng/ml, P = 0.04). Most HEV genetic changes selected during HEV infection were compartmentalized between plasma and feces. Conclusion This compartmentalization highlights the diversity and complexity of HEV replication compartments. Tacrolimus trough concentration at diagnosis of HEV infection could allow an early identification of patients at high risk of chronic hepatitis E and guide treatment initiation.
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Affiliation(s)
- Nancy León-Janampa
- INSERM U1259 MAVIVH, Université de Tours et CHRU de Tours, Tours, France
| | - Natacha Boennec
- INSERM U1259 MAVIVH, Université de Tours et CHRU de Tours, Tours, France
| | | | - Simon Ereh
- INSERM U1259 MAVIVH, Université de Tours et CHRU de Tours, Tours, France
| | - Gabriel Herbet
- INSERM U1259 MAVIVH, Université de Tours et CHRU de Tours, Tours, France
| | - Alain Moreau
- INSERM U1259 MAVIVH, Université de Tours et CHRU de Tours, Tours, France
| | - Philippe Gatault
- Transplantation rénale – Immunologie clinique, CHRU de Tours, Tours, France
| | - Hélène Longuet
- Transplantation rénale – Immunologie clinique, CHRU de Tours, Tours, France
| | - Christelle Barbet
- Transplantation rénale – Immunologie clinique, CHRU de Tours, Tours, France
| | - Mathias Büchler
- Transplantation rénale – Immunologie clinique, CHRU de Tours, Tours, France
| | - Christophe Baron
- Transplantation rénale – Immunologie clinique, CHRU de Tours, Tours, France
| | - Catherine Gaudy-Graffin
- INSERM U1259 MAVIVH, Université de Tours et CHRU de Tours, Tours, France
- Service de Bactériologie-Virologie-Hygiène, CHRU de Tours, Tours, France
| | - Denys Brand
- INSERM U1259 MAVIVH, Université de Tours et CHRU de Tours, Tours, France
- Service de Bactériologie-Virologie-Hygiène, CHRU de Tours, Tours, France
| | - Julien Marlet
- INSERM U1259 MAVIVH, Université de Tours et CHRU de Tours, Tours, France
- Service de Bactériologie-Virologie-Hygiène, CHRU de Tours, Tours, France
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van Dokkum LEH, Moritz Gasser S, Deverdun J, Herbet G, Mura T, D'Agata B, Picot MC, Menjot de Champfleur N, Duffau H, Molino F, le Bars E. Resting state network plasticity related to picture naming in low-grade glioma patients before and after resection. Neuroimage Clin 2019; 24:102010. [PMID: 31734532 PMCID: PMC6861733 DOI: 10.1016/j.nicl.2019.102010] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 09/09/2019] [Accepted: 09/17/2019] [Indexed: 12/01/2022]
Abstract
Patients post DLGG surgery use attentional resources to compensate deficit. Functional plasticity occurs at secondary regions at distance from the lesion. Picture naming requires the integration of multiple resting-state networks. The right hemisphere plays also an important role in language processing. A whole brain approach with clinical input in case of lesion is the way forward.
The dynamic connectome perspective states that brain functions arise from the functional integration of distributed and/or partly overlapping networks. Diffuse low-grade gliomas (DLGG) have a slow infiltrating character. Here we addressed whether and how anatomical disconnection following DLGG growth and resection might interfere with functional resting-state connectivity, specifically in relation to picture naming. Thirty-nine native French persons with a left DLGG were included. All underwent awake surgical resection of the tumor using direct brain electrostimulation to preserve critical eloquent regions. The anatomical disconnectivity risk following the DLGG volume and the resection, and the functional connectivity of resting-state fMRI images in relation to picture naming were evaluated prior to and three months after surgery. Resting-state connectivity patterns were compared with nineteen healthy controls. It was demonstrated that picture naming was strongly dependent on the semantic network that emerged from the integration and interaction of regions within multiple resting-state brain networks, in which their specific role could be explained in the light of the broader resting-state network they take part in. It emphasized the importance of a whole brain approach with specific clinical data input, during resting-state analysis in case of lesion. Adaptive plasticity was found in secondary regions, functionally connected to regions close to the tumor and/or cavity, marked by an increased connectivity of the right and left inferior parietal lobule with the left inferior temporal gyrus. In addition, an important role was identified for the superior parietal lobe, connected with the frontal operculum, suggesting functional compensation by means of attentional resources in order to name a picture via recruitment of the frontoparietal attention network.
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Affiliation(s)
- L E H van Dokkum
- I2FH, Institut d'Imagerie Fonctionelle Humaine, Montpellier University Hospital, Gui de Chauliac, 80 av. Augustin Fliche, 34295 Montpellier, France; Neuroradiology Department, Montpellier University Hospital, Gui de Chauliac, France.
| | - S Moritz Gasser
- Neurosurgery Department, Montpellier University Hospital, Gui de Chauliac, France; Team 'Plasticity of Central Nervous System, Stem Cells and Glial Tumors', INSERM U1051, Institute of Neuroscience Montpellier, France
| | - J Deverdun
- I2FH, Institut d'Imagerie Fonctionelle Humaine, Montpellier University Hospital, Gui de Chauliac, 80 av. Augustin Fliche, 34295 Montpellier, France; Neuroradiology Department, Montpellier University Hospital, Gui de Chauliac, France
| | - G Herbet
- Neurosurgery Department, Montpellier University Hospital, Gui de Chauliac, France; Team 'Plasticity of Central Nervous System, Stem Cells and Glial Tumors', INSERM U1051, Institute of Neuroscience Montpellier, France
| | - T Mura
- Epidemiology Department, Clinical Investigation Center, INSERM-CIC 1411, Montpellier University Hospital, France
| | - B D'Agata
- Epidemiology Department, Clinical Investigation Center, INSERM-CIC 1411, Montpellier University Hospital, France
| | - M C Picot
- Epidemiology Department, Clinical Investigation Center, INSERM-CIC 1411, Montpellier University Hospital, France
| | - N Menjot de Champfleur
- I2FH, Institut d'Imagerie Fonctionelle Humaine, Montpellier University Hospital, Gui de Chauliac, 80 av. Augustin Fliche, 34295 Montpellier, France; Neuroradiology Department, Montpellier University Hospital, Gui de Chauliac, France; Laboratoire Charles Coulomb, Montpellier University, France
| | - H Duffau
- Neurosurgery Department, Montpellier University Hospital, Gui de Chauliac, France; Team 'Plasticity of Central Nervous System, Stem Cells and Glial Tumors', INSERM U1051, Institute of Neuroscience Montpellier, France
| | - F Molino
- I2FH, Institut d'Imagerie Fonctionelle Humaine, Montpellier University Hospital, Gui de Chauliac, 80 av. Augustin Fliche, 34295 Montpellier, France; Laboratoire Charles Coulomb, Montpellier University, France
| | - E le Bars
- I2FH, Institut d'Imagerie Fonctionelle Humaine, Montpellier University Hospital, Gui de Chauliac, 80 av. Augustin Fliche, 34295 Montpellier, France; Neuroradiology Department, Montpellier University Hospital, Gui de Chauliac, France
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Herbet G, Rigaux-Viodé O, Moritz-Gasser S. Peri- and intraoperative cognitive and language assessment for surgical resection in brain eloquent structures. Neurochirurgie 2017; 63:135-141. [PMID: 28506481 DOI: 10.1016/j.neuchi.2016.10.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 10/10/2016] [Accepted: 10/17/2016] [Indexed: 11/15/2022]
Abstract
Neuropsychological care of patients suffering from an infiltrative glioma and candidates for a neurosurgery under awake condition with intraoperative functional mapping is a critical and mandatory stage in therapeutic management. It enables to estimate the functional impact of the tumor and, consequently, the efficacy of functional reorganization typically observed in these patients, not only to better predict surgery outcomes and select appropriate tasks for intraoperative functional mapping, but also to plan efficient and individualized postoperative cognitive rehabilitation strategies. Neuropsychological care management also enables patients to benefit from a solid psychological preparation both to the surgery and its associated transitory functional consequences, as well as provide a personalized psychological and emotional long-term support. Based on their solid experience in the peri-operative care of diffuse low-grade glioma patients, the authors thoroughly describe the different stages of neuropsychological management. Cognitive, emotional and language assessments typically used by the authors around and during surgery are reported, and different possible avenues of improvement are further discussed.
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Affiliation(s)
- G Herbet
- Department of Neurosurgery, Gui de Chauliac Hospital, Montpellier University medical center, 80, avenue Augustin Fliche, 34295 Montpellier, France; Institute for Neuroscience of Montpellier, Inserm U-1051, Saint-Eloi Hospital, 80, rue Augustin-Fliche, 34091 Montpellier cedex 5, France.
| | - O Rigaux-Viodé
- Department of Neurosurgery, Saint-Anne Hospital Center, 1, rue Cabanis, 75014 Paris, France; University Paris-Descartes, 12, rue de l'École de Médecine, 75006 Paris, France
| | - S Moritz-Gasser
- Department of Neurosurgery, Gui de Chauliac Hospital, Montpellier University medical center, 80, avenue Augustin Fliche, 34295 Montpellier, France; Institute for Neuroscience of Montpellier, Inserm U-1051, Saint-Eloi Hospital, 80, rue Augustin-Fliche, 34091 Montpellier cedex 5, France
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Almairac F, Herbet G, Moritz-Gasser S, Lebel L, Fontaine D, Paquis P, Duffau H. Réseau moteur modulateur du lobe pariétal : modifications du mouvement lors de la stimulation électrique directe. Neurochirurgie 2014. [DOI: 10.1016/j.neuchi.2014.10.057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Menjot de Champfleur N, Moritz-Gasser S, Le Bars E, Herbet G, Lima Maldonado I, Bonafé A, Duffau H. Réorganisation fonctionnelle péri-opératoire des réseaux cérébraux du langage chez des patients porteurs d’un gliome de grade 2 OMS. Rev Neurol (Paris) 2013. [DOI: 10.1016/j.neurol.2013.01.548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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