D-lactic acid-producing probiotics and infants: Infant physiology (Part 2)

acidosisDuring acidosis, older subjects can double or triple their baseline rates of acid secretion, whereas the infant is already operating at relatively higher rates of acid secretion and is limited in the ability to further increment this response . Clinically, the immaturity of renal acidification means greater metabolic acidosis risk to the infant than the older child for the same accumulation of hydrogen ions in the blood. Choose a perfect online pharmacy where you could be shopping for depression zoloft any time, being sure your medical conditions will be under your complete control every step of the way.

L(+)- and D-lactate are optical isomers that differ only in the position of the alpha-hydroxy group. The predominant form of lactate normally found in the blood of humans and other vertebrates is L(+)-lactate, which is derived from pyruvate by the action of L-lactic dehydrogenase. Normally, small quantities of D-lactate may be found in the blood and excreted in the urine of humans . Humans can metabolize D-lactate at a rate 30% slower than L(+)-lactic acid , and renal clearance of D-lactate is slower than its optical isomer . Very small amounts of D-lactic acid can originate from its generation by the endogenous methyl-glycoxylase pathway . However, if blood D-lactic acid levels were elevated, the source for this elevation would be as a result of absorption from the intestinal tract either following an ingestion of D-lactate or following increased production in the intestinal tract. In situ rat studies have demonstrated that, with the administration of D- and L-lactic acid to the jejunum, absorption of the L-isomer is lower than that of the D-isomer.

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