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Table 3 Mean α- and β-esterase and monooxygenases activities in field collected An. culicifacies

From: Characterization and monitoring of deltamethrin-resistance in Anopheles culicifacies in the presence of a long-lasting insecticide-treated net intervention

Survey

Site

n

α-Esterases, mmol/min/mg ± SD

β-Esterases, mmol/min/mg ± SD

Monooxygenases, mmol/mg ± SD

 

Susceptible lab strain

47

0.62 ± 0.08

0.50 ± 0.09

0.0026 ± 0.0005

Post LLIN survey-I

C1

60

1.14 ± 0.56*

1.04 ± 0.53*

0.0030 ± 0.0011

C2

60

1.27 ± 0.55*

1.27 ± 0.61*

0.0034 ± 0.0014*

C9

53

1.50 ± 0.72*

1.38 ± 0.70*

0.0027 ± 0.0011

C11

123

1.37 ± 0.65*

1.38 ± 0.70*

0.0031 ± 0.0013*

C12

30

1.39 ± 0.64*

1.14 ± 0.67*

0.0064 ± 0.0024*

Post LLIN survey-II

C1

47

1.78 ± 0.79*

1.39 ± 0.68*

0.0047 ± 0.0017*

C2

47

0.91 ± 0.47*

0.74 ± 0.43*

0.0042 ± 0.0020*

C6

47

1.05 ± 0.57*

0.86 ± 0.52*

0.0075 ± 0.0045*

C8

34

1.57 ± 0.77*

1.12 ± 0.70*

0.0052 ± 0.0015*

C9

47

0.91 ± 0.54*

0.81 ± 0.52*

0.0040 ± 0.0020*

C10

47

1.35 ± 0.72*

0.98 ± 0.62*

0.0058 ± 0.0024

C11

47

0.90 ± 0.60*

0.72 ± 0.57

0.0051 ± 0.0016*

C12

47

1.20 ± 0.58*

0.87 ± 0.54*

0.0040 ± 0.0022*

C13

47

0.96 ± 0.55*

0.82 ± 0.56*

0.0045 ± 0.0016*

C15

47

1.05 ± 0.60*

0.91 ± 0.52*

0.0034 ± 0.0013*

C16

47

2.25 ± 1.00*

2.21 ± 1.08*

0.0065 ± 0.0018*

  1. n number of samples, SD standard deviation
  2. * Levels of enzyme activity significantly increased compared with susceptible lab strain