A high prevalence of TT virus (TTV), a novel virus recently identified in the serum of a patient with post-transfusion hepatitis of unknown aetiology, has been reported in blood donors worldwide. We investigated the presence of TTV DNA in several lots of blood products and in the corresponding plasma pools. In the process, we determined, from three sets of primers, the one which was most efficient in detecting the viral nucleic acid. This set amplifies the region closest to the 3'-end of the TTV genome which was proved, by sequence analysis, to be more conserved than the other two regions. Whereas all 10 intravenous immunoglobulin and 21 albumin batches were TTV negative, 4/5 factor VIII concentrates and 4/10 intramuscular immunoglobulin batches were TTV positive. A high prevalence of TTV DNA (70%) was found in the plasma pools that were collected from four different countries. These results confirm the worldwide distribution of this virus and show that TTV is removed with a varying efficiency during the manufacture of blood products.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1046/j.1365-2141.1999.01568.x | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Biphasic glucose-stimulated insulin secretion over decades: a journey from measurements and modeling to mechanistic insights.
Life Metab
February 2025
New Cornerstone Science Laboratory, State Key Laboratory of Membrane Biology, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, National Biomedical Imaging Center, The Beijing Laboratory of Biomedical Imaging, Peking-Tsinghua Center for Life Sciences, School of Future Technology, Peking University, Beijing 100871, China.
Glucose-stimulated insulin release from pancreatic β-cells is critical for maintaining blood glucose homeostasis. An abrupt increase in blood glucose concentration evokes a rapid and transient rise in insulin secretion followed by a prolonged, slower phase. A diminished first phase is one of the earliest indicators of β-cell dysfunction in individuals predisposed to develop type 2 diabetes.
View Article and Find Full Text PDFClinical studies in Myxomatous Mitral Valve Disease dogs: most prescribed ACEI inhibits ACE2 enzyme activity and ARB increases AngII pool in plasma.
Hypertens Res
January 2025
Department of Medicine, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, USA.
The hypertension patient population has doubled since 1990, affecting 1.3 billion globally and >75% live in low-and middle-income countries. Angiotensin Converting Enzyme Inhibitors (ACEI) and Angiotensin Receptor Blockers (ARB) are the most prescribed drugs (>160 million times in the US), but mortality increased >30% since 1990s globally.
View Article and Find Full Text PDFProgranulin measurement with a new automated method: a step forward in the diagnostic approach to neurodegenerative disorders.
Clin Chem Lab Med
January 2025
Department of Medicine, University of Padova, Padova, Italy.
Objectives: Mutations in the gene encoded glycoprotein progranulin (PGRN), cause 5-10 % of all cases of frontotemporal lobar degeneration (FTLD). The aim of our study was to verify the analytical and clinical performance of an automated chemiluminescent immunoassay method for PGRN measurement recently developed (Chorus Evo, Diesse Diagnostica, Italy).
Methods: Five plasma pools and residual plasma samples (KEDTA) from 25 control subjects (11 males, 62-79 years; 14 females, 54-76 years) and 151 patients (70 males, 53-81 years; 81 females, 44-82 years) with different neurodegenerative disorders (NDs), were assayed.
Peptide pool instability of precancerous lesions in rats with chronic pancreatitis model and/or without type 1 diabetes mellitus.
Adv Clin Exp Med
January 2025
Educational and Scientific Center (ESC) "Institute of Biology and Medicine", Taras Shevchenko National University of Kyiv, Ukraine.
Background: The search for early and minimally invasive diagnostic approaches to pancreatic cancer (PC) remains an important issue. One of the most promising directions is to find a sensitive key in the metabolic changes during widespread causes of PC, i.e.
View Article and Find Full Text PDFDifferentiation of Insect Flours by Elemental Analysis and Chemometrics: A Study Using Inductively Coupled Plasma Mass Spectrometry (ICP-MS).
Molecules
December 2024
Department of Physical and Chemical Sciences, University of L'Aquila, Via Vetoio snc, 67100 L'Aquila, Italy.
Background: This study aimed to validate a method for characterizing and quantifying the multi-elemental profiles of different insect flours to enable their distinction, identification, and quality assessment. The focus was on three insect species: cricket ( ), buffalo worm (), and mealworm ( ).
Methods: Mealworms were powdered in the laboratory through mechanical processing.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!