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Table 2 Mean activity/quantity of insecticide-detoxifying enzymes and remaining activity of propoxur-inhibited AChE in Phlebotomus argentipes (n ≥ 200)

From: Insecticide susceptibility of the sand fly leishmaniasis vector Phlebotomus argentipes in Sri Lanka

PopulationInsecticide metabolizing enzyme activityTarget site activity
Esterase activity (µmol min−1 mg−1)Glutathione S-transferase activity (µmol min−1 mg−1)Monooxygenase amountaAChEb
Mean ± SEMean ± SEMean ± SEMean ± SE
Mamadala0.108 ± 0.00930.198 ± 0.01450.0074 ± 0.000424.6 ± 1.690c
Thalawa0.105 ± 0.00930.221 ± 0.01660.0067 ± 0.000424.1 ± 1.700c
Pannala0.106 ± 0.00930.198 ± 0.01450.0069 ± 0.000423.5 ± 1.540c
Mirigama0.069 ± 0.00460.172 ± 0.01050.0059 ± 0.000312.6 ± 0.837**
  1. aEquivalent units of cytochrome P450
  2. bRemaining activity of propoxur-inhibited AChE given as a percentage of the activity of un-inhibited fraction
  3. cValues comparable with each other (F(2, 594) = 0.12, P = 0.890)
  4. **Significantly different from values in the other three sites (F(3, 792)v14.75, P < 0.0001)
  5. Abbreviation: SE, standard error of the mean