Table 4

Effect of pretreatment with nucleotides on ΔIsc (μA/cm2) elicited in the pigmented rabbit conjunctiva by UTP, ATP, 2-MeSATP, and 2-MeSADP

First treatmentSecond treatment
NucleotidesUTPATP2-MeSATP2-MeSADP
UTP (10 μM)7.3  ± 0.50.3  ± 0.14-a 2.3  ± 0.14-a 3.5  ± 0.54.3  ± 0.6
ATP (10 μM)6.6  ± 0.32.0  ± 0.14-a 1.4  ± 0.24-a
2-MeSATP (100 μM)4.2  ± 0.56.7  ± 0.4
2-MeSADP (100 μM)3.5  ± 0.66.6  ± 0.7

Data represent mean ± S.E. (n = 4–14).

  • 4-a Significantly different from that observed by treatment with first nucleotide alone.