A positive leishmanin skin test (LST) result indicates exposure to Leishmania spp. and is generally thought to reflect a durable cell-mediated immune response.
The initiation of sporulation is one of the decisive moments in the life cycle of sporulating bacteria, whereby an extremely durable cell called a spore is formed, as exemplified by the bacterium Bacillus subtilis.
C. trachomatis EB are the extracellular form of the organism and they possess an extremely durable cell wall.
The relevance of gene therapy strategies in combination with a scaffold, following a so-called "Gene-Activated Matrix (GAM)" approach, is to achieve a direct, local and sustained delivery of nucleic acids from a scaffold to ensure efficient and durable cell transfection.
Cell patterning functionality of the patterned surfaces was maintained for more than 2 months without loss of pattern fidelity, indicating that more durable cell arrays can be obtained compared to those prepared by self-assembled monolayers of alkanethiols, as described in previous reports.
To conclude, despite the partial differences among the three types of senescence-conditioned media, the senescence-associated secretome of cells undergoing any of the three forms of parental senescence is capable of inducing durable cell cycle arrest with hallmarks of 'bystander cellular senescence' in normal human cells.
The development of the dentate gyrus is characterized by distinct phases establishing a durable stem-cell pool required for postnatal and adult neurogenesis.
Cellular senescence is a stress response of mammalian cells leading to a durable arrest of cell proliferation that has been implicated in tumor suppression, wound healing, and aging.
A positive LST result is thought to indicate durable cell-mediated immunity after asymptomatic infection or clinical cure of VL.
Formation of membrane pinholes is a common defect in fuel cells, inflicting more cost and making less durable cells.
The evolution of woody plants has solved the problem of capture (photosynthesis) and storage (formation of durable cells) at minimal cost.
