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Table 1.

Effect of the protein kinase C activators on dopamine- and ergonovine-stimulated fluid transport by tick salivary glands

Treatment% Maximum*NP
OAG    
    DA (control) 85.1±3.8 — 
    DA + OAG 79.9±4.4 0.382 
    Return to DA 63.8±4.4 0.002 
    ErN (control) 87.5±2.2 — 
    ErN + OAG 72.4±9.9 0.183 
    Return to ErN 55.4±10.8 0.025 
DiC8    
    DA (control) 78.6±3.5 — 
    DA + DiC8 50.6±6.0 10 0.001 
    Return to DA 43.4±6.5 0.005 
    ErN (control) 78.6±4.8 — 
    ErN + DiC8 59.2±3.0 0.004 
    Return to ErN 41.6±2.9 0.0000 
Treatment% Maximum*NP
OAG    
    DA (control) 85.1±3.8 — 
    DA + OAG 79.9±4.4 0.382 
    Return to DA 63.8±4.4 0.002 
    ErN (control) 87.5±2.2 — 
    ErN + OAG 72.4±9.9 0.183 
    Return to ErN 55.4±10.8 0.025 
DiC8    
    DA (control) 78.6±3.5 — 
    DA + DiC8 50.6±6.0 10 0.001 
    Return to DA 43.4±6.5 0.005 
    ErN (control) 78.6±4.8 — 
    ErN + DiC8 59.2±3.0 0.004 
    Return to ErN 41.6±2.9 0.0000 

OAG, 1-oleolyl-2-acetyl-sn-glycerol (100 μmol l-1);DiC8,1,2-dioctanoyl-sn-glycerol (100 μmol l-1); DA, dopamine (0.1 μmol l-1); ErN, ergonovine(0.1 μmol l-1).

*

% Maximum is calculated from the maximum rate recorded during each initial control period (± s.e.m.).

Student's t-test (cf control).

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