The Company of Biologists

Table 2.

Net transepithelial electrochemical potentials (Δμ/F) for Na⁺, K⁺, H⁺ and Cl^– before and after the addition of 10 μmol l^–1 Tenmo-ADFb, 1 nmol l^–1 Achdo-KII or 1 mmol l^–1 8-bromo cyclic GMP

	Δμ/F (mV)
	Tenmo-ADFb			Achdo-KII			8-bromo cyclic GMP
	Basal	Stimulated	Basal	Stimulated	Basal	Stimulated
Na⁺	11.4	–23.7	12.5	–17.0	9.1	32.3
K⁺	86.8	56.9	85.9	57.7	85.1	90.5
H⁺	48.9	20.7	51.3	27	52.5	51.0
Cl^–	–34.5	–2.2	–35.4	–5.0	–34.2	–42.4

	Δμ/F (mV)
	Tenmo-ADFb			Achdo-KII			8-bromo cyclic GMP
	Basal	Stimulated	Basal	Stimulated	Basal	Stimulated
Na⁺	11.4	–23.7	12.5	–17.0	9.1	32.3
K⁺	86.8	56.9	85.9	57.7	85.1	90.5
H⁺	48.9	20.7	51.3	27	52.5	51.0
Cl^–	–34.5	–2.2	–35.4	–5.0	–34.2	–42.4

Calculations are based upon measured concentrations in the secreted urine and on mean values for the transepithelial voltage(V_t)

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