Sentence examples for tissue is difficult to from inspiring English sources
Signal from bone tissue is difficult to measure given its short transverse relaxation time (T2).
However, large functional liver tissue is difficult to construct because of the high oxygen consumption of hepatocytes.
In contrast to these approaches, post-mortem brain tissue is difficult to obtain, and some RNA quality concerns exist that might potentially influence transcriptome studies [7], [8].
Whereas brain tissue is difficult to obtain, CSF is accessible and reflects the biochemical milieu of the central nervous system [ 38– 40].
Fat tissue is difficult to cut and can blunt the blade, so we recommend careful manual removal of fat tissue before slicing.
However, a major restriction posed by all methods based on visual inspection is that fat tissue is difficult to differentiate from breast bud [ 9].
High quality experimental data on drug concentrations in the brain tissue are difficult to obtain, hence this is itself an issue in testing mathematical approaches.
Cognizant of the fact that clear labeled projecting fibers using aged human brain tissue are difficult to demonstrate with small amounts of crystal, we ventured to see whether the usage of a relatively larger deposit combined with a very lengthy incubation interval (seven years) would enable us to demonstrate the projecting tracts of the adult human red nucleus.
We attempted to analyze brain endothelial cells via FACS, but the tissue was difficult to dissociate and formed clumps during the immunolabeling process.
It might be even more difficult to reactivate latent virus in vivo given that certain tissues harboring latent virus, such as the central nervous system and gut-associated lymphoid tissue, are difficult to penetrate with drugs [ 4].
Affected tissues such as cardiac and neuronal tissue are difficult to sample, making assessment of frataxin levels in peripheral tissues (e.g., blood, buccal cells) important in monitoring the disease and the response to therapies.
