PMID- 829917
OWN - NLM
STAT- MEDLINE
DCOM- 19781025
LR  - 20091111
IS  - 0001-6764 (Print)
IS  - 0001-6764 (Linking)
VI  - 26
IP  - 6
DP  - 1976
TI  - Concentration and seasonal variations of purine bases, nucleotides and 
      nucleotide-sugars in liver of Bufo arenarum. Comparison with early embryogenesis.
PG  - 472-80
AB  - A comparative study of the bases, nucleotides and nucleotide-sugars was performed 
      in liver of Bufo arenarum. Samples were obtained at different seasons of the 
      year, according to the periods of active (December-March) and passive metabolism 
      (April-July). It was found that guanine and hypoxanthine increase significantly 
      in spring. A remarkable decrease in the levels of the nucleosides triphosphates 
      adenosine 5'-triphosphate (ATP) and guanosine 5'-triphosphate (GTP) was found in 
      spring; correlatively, an increase in the levels of adenosine 5'-monophosphate 
      (AMP) and guanosine 5'-monophosphate (GMP) and adenosine 5'-pyrophosphate (ADP) 
      and guanosine 5'-pyrophosphate (GDP was observed. A notable increase in the 
      amounts of uridine 5'-diphosphate- D - glucose (UDP-glucose) was detected at the 
      end of the period of low metabolism, which is coincident wtih a decrease in the 
      level of glycogen, observed by other authors.
FAU - Maggese, M C
AU  - Maggese MC
FAU - Spaizmann, R C
AU  - Spaizmann RC
FAU - de Recondo, M E
AU  - de Recondo ME
LA  - eng
PT  - Comparative Study
PT  - Journal Article
PL  - Argentina
TA  - Acta Physiol Lat Am
JT  - Acta physiologica latino americana
JID - 0060610
RN  - 0 (Carbohydrates)
RN  - 0 (Purine Nucleosides)
RN  - 0 (Purine Nucleotides)
SB  - IM
MH  - Animals
MH  - Anura
MH  - Base Sequence
MH  - Bufo arenarum/embryology/*metabolism
MH  - Carbohydrates/*analysis
MH  - Female
MH  - Liver/*analysis/metabolism
MH  - Purine Nucleosides/*analysis
MH  - Purine Nucleotides/*analysis
MH  - Seasons
EDAT- 1976/01/01 00:00
MHDA- 1976/01/01 00:01
CRDT- 1976/01/01 00:00
PHST- 1976/01/01 00:00 [pubmed]
PHST- 1976/01/01 00:01 [medline]
PHST- 1976/01/01 00:00 [entrez]
PST - ppublish
SO  - Acta Physiol Lat Am. 1976;26(6):472-80.