Active pyrimidine absorption by chicken colon

Evidence for incorporation of intact dietary pyrimidine (but not purine) nucleosides into hepatic RNA.

“…Digestion of dietary nucleic acids leads to generation of nucleotides, nucleosides, and free bases (17,18), and there is evidence for the existence of specific transport systems for absorption of both bases and nucleosides (19,20). The present results demonstrate that significant quantities of pyrimidine nucleosides derived from the diet were incorporated into hepatic nucleic acids.…”

Evidence for incorporation of intact dietary pyrimidine (but not purine) nucleosides into hepatic RNA.

“…Digestion of dietary nucleic acids leads to generation of nucleotides, nucleosides, and free bases (17,18), and there is evidence for the existence of specific transport systems for absorption of both bases and nucleosides (19,20). The present results demonstrate that significant quantities of pyrimidine nucleosides derived from the diet were incorporated into hepatic nucleic acids.…”

Everted gut sac model as a tool in pharmaceutical research: limitations and applications

“…Different animals have been chosen for everted gut sac experiments, for example frog, catfish, rat, rabbit, sheep, chicken, goldfish, turtle, pigs, guinea pig and mice [31,32,34–44] . The everted rat intestinal sac is the most commonly used sac for in‐vitro studies.…”

Evidence for incorporation of intact dietary pyrimidine (but not purine) nucleosides into hepatic RNA.

“…Digestion of dietary nucleic acids leads to generation of nucleotides, nucleosides, and free bases (17,18), and there is evidence for the existence of specific transport systems for absorption of both bases and nucleosides (19,20). The present results demonstrate that significant quantities of pyrimidine nucleosides derived from the diet were incorporated into hepatic nucleic acids.…”

Everted gut sac model as a tool in pharmaceutical research: limitations and applications

“…Different animals have been chosen for everted gut sac experiments, for example frog, catfish, rat, rabbit, sheep, chicken, goldfish, turtle, pigs, guinea pig and mice [31,32,34–44] . The everted rat intestinal sac is the most commonly used sac for in‐vitro studies.…”

Evidence for incorporation of intact dietary pyrimidine (but not purine) nucleosides into hepatic RNA.

“…Digestion of dietary nucleic acids leads to generation of nucleotides, nucleosides, and free bases (17,18), and there is evidence for the existence of specific transport systems for absorption of both bases and nucleosides (19,20). The present results demonstrate that significant quantities of pyrimidine nucleosides derived from the diet were incorporated into hepatic nucleic acids.…”

Everted gut sac model as a tool in pharmaceutical research: limitations and applications

“…Different animals have been chosen for everted gut sac experiments, for example frog, catfish, rat, rabbit, sheep, chicken, goldfish, turtle, pigs, guinea pig and mice [31,32,34–44] . The everted rat intestinal sac is the most commonly used sac for in‐vitro studies.…”