Recently, the growing knowledge in neurobiology has permitted the establishment of long-term cultures of human neural stem cells (hNSC) that, by virtue of their self-renewal capacity and multipotentiality, provide a valuable tool for the study of neurodegenerative disorders.
The frequent use of erythromycin in pregnant women has permitted the surveillance of long-term effects of this antimicrobial agent.
The model permits the long-term viscoelastic behaviour to be predicted based on experimental data obtained in standard short-term creep and relaxation tests.
Planar microelectrode arrays (MEAs) permit the long-term, non-invasive monitoring of electrically active cells.
European safety standards do not permit the long-term use of cadmium, and the Japanese market is particularly averse to the material.
The recurrent invasion of closely related uninfected species, via horizontal transfer, is a hypothesis that permits the longer-term persistence of HEGs by maintaining purifying selection.
While the precise molecular mechanisms operating the survival or death pathways in T cells are still under investigations, the possibility of their pharmacologic manipulation in the future might open the way for the development of new immunotherapeutic strategies that will permit the "long-term" induction and selective expansion of Treg or provide clues about their selective elimination.
This approach permits the long-term effects of drug exposure to be assessed, both on the tumour and on the host, which is not possible in mice with larger tumours.
The novel SNP-based methodology used represents an important tool in molecular epidemiological studies and as our understanding of the biology and diffusion of the organism increases it will permit the long-term monitoring of strains circulating in specific locations with high transmission of S. Typhi.
The 2 possible explanations for the source of the virus that caused the 2005 monkeypox outbreak in Sudan are 1) the existence of conditions permitting the long-term maintenance of MPXV in wildlife within the area where this outbreak occurred and transmission of the virus from reservoir hosts into humans; and 2) the importation of MPXV into the outbreak area by an infected human or animal.
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