Thus, any disturbances in nutritional or immunological homeostasis can provide deleterious feedback loops that can further enhance health disorders, increase production losses, and decrease the availability of safe and nutritious dairy foods for a growing global population.
We speculated in that work that the higher CpG signal in the 1918 virus could have contributed to its increased lethality via a high cytokine response and that a set of highly expressed innate immune genes may also avoid a CpG signal so as to avoid a deleterious positive feedback loop.
Once 'activated', the endothelium can promote additional congestion through humoral, renal and cardiac mechanisms, resulting in a deleterious positive feedback loop [ 20].
TFEB gene transfer interrupts this deleterious positive feedback loop and results in reduction of calnexin, a molecular chaperone of AAT and a sensor of EOR (Alam et al, 2012; Lawless et al, 2004; Fig 9B), decreased NFκB synthesis and activation (Fig 9B), and normalizes mIL-6 mRNA levels (Fig 9C).
Dysregulation of the DPAGT1/canonical Wnt feedback loop has deleterious consequences to cellular homeostasis.
This negative feedback loop would amplify the deleterious effects of cardiotoxic insults and is consistent with the degenerative nature of some cardiac disease such as heart failure.
Under such a scenario, SC populations would be very small and caught in a negative feedback loop between the accumulation of deleterious mutations and shrinking population size.
This negative feedback loop would serve to limit the deleterious effects of the SASP on surrounding tissues.
These results are consistent with the reported effects of Ro52 deficiency in mice, thus adding further evidence that Ro52 functions as part of a negative feedback loop to protect the host from the deleterious effects of prolonged type I IFN production.
Hypotheses for this central/peripheral discrepancy include recruitment of NO from the brain towards the burn site, and/or a negative feedback loop blocking central NO because of its oxidative and free-radical deleterious effects [ 55].
