Purpose: The objective of this study is to describe the clinical and immunological aspects observed in patients with both human T-cell lymphotropic virus type I-associated myelopathy/tropical spastic paraparesis and ocular dryness.
Methods: In 15 such patients, clinical and biological examinations completed with a biopsy of secondary salivary glands were performed to assess the etiology of the ocular dryness.
Results: Histological study of the biopsy specimens indicated that 80% of the patients had grade 3 or grade 4 lesions, according to the Chisholm scale. Polyclonal hypergammaglobulinemia was found in 60% of patients and lymphocytic alveolitis in 80%. Three patients had past medical history of chronic uveitis.
Conclusions: All findings in these patients were compatible with Sjögren's syndrome; however, no immunological disorders characteristic of the syndrome were found. Tests for antinuclear antibodies and rheumatoid factor proved negative in all cases.
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http://dx.doi.org/10.1016/s0021-5155(99)00106-9 | DOI Listing |
Retrovirology
December 2024
Iranian Tissue Bank and Research Center, Tehran University of Medical Sciences, Tehran, Iran.
Cytokine
January 2025
Department of Neurology, Mashhad University of Medical Sciences, Mashhad, Iran. Electronic address:
Human T-lymphotropic virus type 1 (HTLV-1), leads to adult T-cell lymphoma/leukemia (ATL) and HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP) in a minority of infected individuals. The virus promotes inflammation, a major factor in chronic disease progression. Probiotics' immune modulation and anti-inflammatory effects present a potential therapeutic intervention for HTLV-1-related conditions.
View Article and Find Full Text PDFViruses
November 2024
Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, 3901 Rainbow Blvd, Kansas City, KS 66160, USA.
Pathogens
October 2024
Viral Immunology Section, NINDS, National Institutes of Health, 10 Center Drive, Bethesda, MD 20892, USA.
HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP) is a chronic, progressive neurological disorder and shares many radiological and clinical features with other more prevalent myelopathies. Here, we quantified spinal cord and brain volumes in adults with HAM/TSP in comparison with healthy volunteers (HVs) and individuals diagnosed with relapsing-remitting or progressive multiple sclerosis (RRMS or P-MS). Clinical disability and MRI were assessed in 24 HVs, 43 HAM/TSP subjects, and 46 MS subjects.
View Article and Find Full Text PDFViral Immunol
November 2024
Department of Medical Microbiology (Bacteriology & Virology), Afzalipour Faculty of Medicine, Kerman University of Medical Sciences, Kerman, Iran.
Human T-cell lymphotropic virus type-I (HTLV-I)-associated myelopathy/tropical spastic paraparesis (HAM/TSP), the main neurological manifestation of HTLV-I, is a chronic inflammatory disease. Viral-host interaction and host genetics are two important contributors to the development of the HAM/TSP. This study was conducted to measure the serum level of tumor necrosis factor-alpha-like weak inducer of apoptosis (TWEAK) by ELISA method in three groups of participants including 34 HAM/TSP patients (HAM/TSP), 35 asymptomatic HTLV-1 carriers (ACs), and 20 healthy controls (HCs).
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