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Corona disease 2019 (COVID-19) affects multiple organ systems. Recent studies have indicated perturbations in the circulating metabolome linked to COVID-19 severity. However, several questions pertain with respect to the metabolome in COVID-19. We performed an in-depth assessment of 1129 unique metabolites in 27 hospitalized COVID-19 patients and integrated results with large-scale proteomic and immunology data to capture multiorgan system perturbations. More than half of the detected metabolic alterations in COVID-19 were driven by patient-specific confounding factors ranging from comorbidities to xenobiotic substances. Systematically adjusting for this, a COVID-19-specific metabolic imprint was defined which, over time, underwent a switch in response to severe acute respiratory syndrome coronavirus-2 seroconversion. Integration of the COVID-19 metabolome with clinical, cellular, molecular, and immunological severity scales further revealed a network of metabolic trajectories aligned with multiple pathways for immune activation, and organ damage including neurological inflammation and damage. Altogether, this resource refines our understanding of the multiorgan system perturbations in severe COVID-19 patients.
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http://dx.doi.org/10.1002/eji.202149626 | DOI Listing |
Eur J Case Rep Intern Med
August 2025
Department of Internal Medicine, Wayne State University School of Medicine, Trinity Health Oakland Hospital, Pontiac, USA.
Background: Invasive central nervous system (CNS) aspergillosis is rare among human immunodeficiency virus (HIV)-positive patients due to preserved neutrophil function, despite significant CD4+ T-cell depletion. Diagnosis typically requires histopathologic confirmation, but polymerase chain reaction (PCR) testing has introduced new challenges due to its high sensitivity but limited specificity.
Case Presentation: We describe a newly diagnosed 43-year-old HIV-positive male with concurrent Hodgkin lymphoma who presented with progressive neurological decline and a ring-enhancing brain lesion.
Hematol Transfus Cell Ther
September 2025
Department of Medicine, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada; Verspeeten Family Cancer Centre, London Health Sciences Centre, London, ON, Canada; Department of Oncology, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada; Th
Background: Hemophagocytic lymphohistiocytosis (HLH) is a life-threatening immune disorder characterized by excessive inflammation and multiorgan involvement. Rarely, HLH can manifest with signs and symptoms isolated to the central nervous system (CNS). This case report highlights the unique clinical course of CNS-isolated HLH in a 19-year-old female who, despite a nine-year delay in diagnosis, achieved disease remission following a hematopoietic stem cell transplant (HSCT).
View Article and Find Full Text PDFMedicine (Baltimore)
September 2025
The Unit of Pathogenic Fungal Infection & Host Immunity, CAS Key Laboratory of Molecular Virology and Immunology, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai, China.
Rationale: Cytomegalovirus (CMV) is a DNA virus from the herpesvirus family that is widespread among humans. Very low birth weight infants (VLBWI) are particularly susceptible to postnatal CMV infection due to their compromised immune systems. The clinical manifestations of postnatal CMV infection are often nonspecific, which complicates early detection and may lead to multi-organ dysfunction and long-term sequelae.
View Article and Find Full Text PDFFront Oncol
August 2025
Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
Objective: To investigate the clinicopathological features, diagnostic value, risk model and prognostic significance of epithelioid hemangioendothelioma (EHE) in a retrospective cohort of 115 cases.
Methods: A total of 115 cases of EHE diagnosed in the Cancer Hospital of the Chinese Academy of Medical Sciences (NCC) from 2011 to 2023 were collected. The clinical and pathological features of EHE were reviewed by Fluorescence hybridization (FISH) and Immunohistochemistry (IHC).
J Biol Chem
September 2025
Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, California, USA.
Aminoacyl-tRNA synthetases (aaRSs) catalyze the aminoacylation of tRNA with their cognate amino acids, an essential step in protein biosynthesis. While biallelic mutations in aaRSs often result in severe multi-organ dysfunction accompanied by developmental delays, monoallelic mutations typically cause milder, tissue-specific symptoms. However, a de novo monoallelic nonsense mutation (R534*) in the asparaginyl-tRNA synthetase (AsnRS)-resulting in a premature stop codon and 15-residue C-terminal truncation-has been identified in multiple families and is associated with severe neurodevelopmental symptoms.
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