ArticleInternational journal of molecular sciences2023
Characterization of a Neutral Sphingomyelinase Activity in Human Serum and Plasma.
Article in International journal of molecular sciences, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- The Role of Ceramides in Metabolic and Cardiovascular Diseases.Journal of cardiovascular development and disease · 2026Review
- Clinical relevance of loneliness in the treatment of depression: study protocol for a naturalistic prospective longitudinal study.Frontiers in psychiatry · 2026Article
- Inhibitors of Phosphatidylinositol-specific Phospholipase C wit hMedicinal chemistry (Shariqah (United Arab Emirates)) · 2026Article
- Psychosomatic - psychotherapeutic treatment of stress-related disorders impacts the sphingolipid metabolism towards increased sphingosine and sphingosine-1-phosphate levels.European archives of psychiatry and clinical neuroscience · 2025Article
- TaKeTiNa Music Therapy for Outpatient Treatment of Depression: Study Protocol for a Randomized Clinical Trial.Journal of clinical medicine · 2024Article
- Peripheral Upregulation of Parkinson's Disease-Associated Genes Encoding α-Synuclein, β-Glucocerebrosidase, and Ceramide Glucosyltransferase in Major Depression.International journal of molecular sciences · 2024Article
- Inhibition of the HFrontiers in immunology · 2024Article
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Authors and funding
2 authors.
Funding
Abstract
Alterations of sphingolipids and their metabolizing enzymes play a role in various diseases. However, peripheral biomarkers for such changes are limited. Particularly, in the increasingly reported involvement of neutral sphingomyelinase (NSM) with four described isoforms in tissues or cells, a peripheral marker is lacking. We here describe the detection of an NSM activity in human serum and plasma samples which hydrolyses fluorescently labeled sphingomyelin to ceramide in a time- and volume-dependent manner. Reaction rates were linear up to 10 days, and serum volumes above 2 vol-% were inhibitory. Biochemical properties were different from acid sphingomyelinase (ASM) with respect to detergent specificity (sodium deoxycholate), pH profile (pH 7-9), and cation dependence: Serum NSM activity was inhibited by EDTA ≥ 1 µM and restored in EDTA-anticoagulated plasma with the addition of ≥ 100 µM Co
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