Beyond the optimum the ions saturated system causes the analyte to be water soluble leading to a decrease in the recovery bMaximum buffering action at optimum mass where the PXD molecules are preserved against degradation results in optimum recovery.
Perhaps, this could explain why in our model, the mitochondrial fragmentation in LINCL cells is not associated with a decrease in the mitochondrial calcium buffering capacity.
Interestingly, in models of MLIV or nephropathic cystinosis, mitochondrial fragmentation and aberrations have also been associated with a decrease in the mitochondrial calcium buffering capacity and/or with an increased production of ROS [ 18, 19].
The observed decrease in Ca buffering would be expected to increase the rate constant of decay of both the systolic and caffeine-evoked Ca transients.
The immediate effect of a decrease in Ca buffering would be that a given release of Ca from the SR will produce a larger Ca transient.
The increase, however, was measured from the amplitude of the caffeine-evoked increase in [Ca2+]i and this may also result from a decrease in Ca buffering rather than an actual increase in the amount of Ca released.
This decrease in endosomal buffering capacity induced by amine acetylation is likely responsible for the decreased siRNA delivery, as the presence of a buffering agent appeared to improve cellular distribution of oligonucleotides delivered by acetylated dendrimers.
Cisplatin-induced acute renal failure is associated with the generation of reactive oxygen species (ROS), lipid peroxidation and a decrease in antioxidant buffering systems, such as GSH.
Considering that bicarbonate is the most important pH buffering system in saliva, and the adherence and survival of aciduric bacteria such as S. mutans are enhanced at low pH values, we speculate that the decrease in the bicarbonate content and pH buffering of the saliva is at least partially responsible for the increased severity of lesions observed in the CF mouse.
Consequently, considering that HCO3− is the most important pH buffering system in saliva, and tight adherence and survival of aciduric bacteria such as S. mutans are enhanced at low pH values, the decrease in the HCO3− content and pH buffering of the saliva is most likely to be at least partially responsible for the severity of lesions observed in the CF mouse.
