Background: Dermatomyositis (DM) is a systemic autoimmune disease characterized by distinct skin lesions and a clinically heterogeneous constellation of systemic manifestations. This disease poses a challenge to clinicians because of its rarity, diverse clinical presentations, and variable organ involvement, resulting from an autoimmune attack on affected organs, which could be triggered by environmental factors in genetically susceptible individuals. Renal involvement is rare, with immunoglobulin M (IgM) nephropathy yet to be reported in patients with DM.
Case Presentation: A 38-year-old man was admitted to Shariati Hospital, affiliated with Tehran University of Medical Sciences, with proximal weakness of the upper and lower extremities that had developed in the preceding month after receiving the Sinopharm COVID-19 vaccine. The patient was diagnosed with DM based on the heliotrope rash, Gottron's papules, progressive proximal muscle weakness, and paraclinical findings. IgM nephropathy developed subsequently, diagnosed by light and immunofluorescence microscopy.
Conclusion: We describe the first case of IgM nephropathy in a DM patient following COVID-19 vaccination. This phenomenon requires further investigation into the possible crosslinks between the pathogenesis of IgM nephropathy with DM and the COVID-19 vaccine. Diagnosing renal complications in DM patients promptly and accurately can help to achieve the best outcomes.
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http://dx.doi.org/10.1111/1756-185X.14824 | DOI Listing |
Ochsner J
January 2024
Division of Cardiology, Baylor Scott & White Medical Center, Temple, TX.
Waldenström macroglobulinemia is a rare cancer of plasma cells characterized by the excessive production of immunoglobulin M (IgM). IgM-associated systemic amyloid light chain (AL) amyloidosis is a rare complication of Waldenström macroglobulinemia, characterized by the misfolding of lambda light chains that deposit in various organs, including the heart. We describe a case of progressive nonischemic cardiomyopathy secondary to Waldenström macroglobulinemia and IgM-associated AL amyloidosis that was refractory to medical therapy and highlight the challenges in diagnosis and management.
View Article and Find Full Text PDFCancer Immunol Immunother
December 2024
Department of Clinical Immunology, Medical University of Białystok, Białystok, Poland.
Unlabelled: Vaccination has been considered the most crucial defence against viral infections, including SARS-CoV-2. Numerous reports have demonstrated the effectiveness of the above vaccines in oncological patients. It has also been proven that, apart from vaccinations and oncological therapy, the course of the cancer process itself influences the magnitude of the humoral response, especially in people after infection with SARS-CoV-2.
View Article and Find Full Text PDFHepatol Int
December 2024
Division of Hepatology, Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital at Linkou, No 5, Fu Hsing Street, Kuei Shan, Taoyuan, Taiwan.
Background: The phenotype of cryoglobulinemia in hepatitis B virus (HBV) carriers remains elusive.
Methods: A 7-year prospective cohort of 648 hepatitis B e antigen (HBeAg)-negative Taiwanese HBV carriers [males: 344 (53%)] was conducted.
Results: Among 648, 189 (29.
Front Immunol
December 2024
Norwegian College of Fishery Science, Faculty of Biosciences, Fisheries & Economics, UiT- the Arctic University of Norway, Tromsø, Norway.
Teleost B cells producing neutralizing antibodies contribute to protection against salmonid alphavirus (SAV) infection, the etiological agent of pancreas disease, thereby reducing mortality and disease severity. Our previous studies show differences in B cell responses between the systemic immune tissues (head kidney (HK) and spleen) and the peritoneal cavity (PerC) after intraperitoneal SAV3 infection in Atlantic salmon () where the response in PerC dominates at the late time points. By employing the same infection model, we aimed to further characterize these B cells.
View Article and Find Full Text PDFFront Immunol
December 2024
Engineering Lab of Henan Province for Aquatic Animal Disease Control, College of Fisheries, Henan Normal University, Xinxiang, Henan, China.
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