Publications by authors named "M R ABELL"

Article Synopsis
  • Compensatory growth (CG) in juvenile green turtles occurs after food restriction, leading to accelerated growth when food becomes available again, but it may have negative consequences.
  • Turtles undergoing different feeding regimens were analyzed for bone structure, revealing that those with partial CG showed better food conversion efficiency after realimentation.
  • The study found that when food availability increased, the restoration of bone growth prioritized lengths over widths and favored certain microstructural attributes, indicating shifts in nutrient allocation that may influence long-term bone health.
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Article Synopsis
  • Increased mechanical forces on developing cardiac valves influence the formation of the extracellular matrix (ECM), which is crucial for tissue integrity and cellular signaling.
  • The study focused on the pulmonary valve (PV) during a key developmental period from birth to postnatal day 7, analyzing the impact of blood flow on mechanical loading.
  • Findings demonstrated that in mice lacking the proteoglycan protease ADAMTS5, the PV showed temporary phenotypic improvement and changes in proteoglycan localization, suggesting that increased blood flow activates ECM proteases that help organize ECM layers essential for cardiac valve maturation.
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In this study, we compare the effects of competitors in a chemostat when one of the competitors is lethal to the other. The first competitor ("the mutant") is the desired organism because it provides a benefit, such as a substance that is harvested. However, when the mutant undergoes cell division the result may return to the original ("wild type") organism that produces a substance ("toxin") that is lethal to the mutant.

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EEG studies of wakeful rest have shown that there are brief periods in which global electrical brain activity on the scalp remains semi-stable (so-called microstates). Topographical analyses of this activity have revealed that much of the variance is explained by four distinct microstates that occur in a repetitive sequence. A recent fMRI study showed that these four microstates correlated with four known functional systems, each of which is activated by specific cognitive functions and sensory inputs.

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