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Sign in Sign in to add your own tags to this product. Gifting on Steam The Steam Community. Support Forums Stats. All rights reserved. Mother-to-infant transmission of TT virus in Japan. Int J Gynaecol Obstet. Hepatol Res. Mother-to-child transmission of TT virus: sequence analysis of non-coding region of TT virus in infected mother-infant pairs. Early acquisition of TT virus in infants: possible minor role of maternal transmission.
TT virus infection during childhood. Mother-toinfant vertical transmission of transfusion transmitted virus in South China. J Perinat Med. Transplacental transmission of torque teno virus. Torquetenovirus dynamics and immune marker properties in patients following allogeneic hematopoietic stem cell transplantation: a prospective longitudinal study.
Biol Blood Marrow Transplant. Albert, E. The kinetics of torque teno virus plasma DNA load shortly after engraftment predicts the risk of high-level CMV DNAemia in allogeneic hematopoietic stem cell transplant recipients. Bone Marrow Transplant, august , 1—8. TT virus TTV loads associated with different peripheral blood cell types and evidence for TTV replication in activated mononuclear cells.
TT virus replicates in stimulated but not in nonstimulated peripheral blood mononuclear cells. Short-term kinetics of torque teno virus viraemia after induction immunosuppression confirm T-lymphocytes as the main replication-competent cells. J Gen Virol. Tohoku J Exp Med.
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Tyschik, E. Virol J 15, 96 doi Download citation.
We are grateful to Sophie Leblaye for greenhouse work, plant production and virus inoculation. The validation of this assumption was set up with a focus on the replication function. Results from these controls are shown as Figure 2—figure supplement 1. Concerning the more specific question of the potential self-mobility, without a precise description of the mode of action of all viral genes, it is impossible to predict whether each of them should encode a self-mobile function. Install Steam. Both green and red fluorescence were then quantified for each pixel within this area and the average pixel fluorescence intensity was estimated. One definition might be the point at which an entity becomes self-aware.
Search all BMC articles Search. Tyschik 1 , Anastasiya S. Rasskazova 2 , Anna V. There is no precise definition of what separates the living from the non-living. One definition might be the point at which an entity becomes self-aware. In this sense, someone who has had severe head trauma may be classified as brain dead. In this case, the body and brain are still functioning on a base level and there is definitely metabolic activity in all of the cells that make up the larger organism, but it is presumed that there is no self-awareness so the person is classified as brain dead.
On the other end of the spectrum, a different criterion for defining life would be the ability to move a genetic blueprint into future generations, thereby regenerating your likeness. In the second, more simplistic definition, viruses are definitely alive.
They are undeniably the most efficient entities on this planet at propagating their genetic information. Although there is no definitive resolution to the question of whether viruses can be considered living entities, their ability to pass on genetic information to future generations makes them major players in an evolutionary sense. It is a surprise to most who think of viruses simply as parasites that they make up the largest component of biomass on this planet Bamford , Research in Microbiology ; So far every living organism that has been studied to date has had at least one virus associated with it, and viruses out number all other life forms by at least an order of magnitude Ackerman , Research in Microbiology ; When considering that not only is viral presence on this planet all encompassing, but every sequenced organism to date has a major component of its genome that is viral in origin, it becomes apparent that viruses are integral players in the evolution of what we presently consider life.
Organization and complexity have slowly increased from the time that macromolecules began to assemble in the primordial soup.