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Table 2 Mean number of larvae recovered at different time point in different organs of BALB/c knockout mice experimentally infected with human Loa loa. The numbers in brackets are mean recovery.

From: The human parasite Loa loa in cytokine and cytokine receptor gene knock out BALB/c mice: survival, development and localization

Strain

DPI

D2

D5

D10

D15

D20

D30

D40

D50

D60

D70

Total

 

Nb of mice dissected

2

1

2

2

4

2

1

   

14

 

Nb of larvae recovered

74

6

0

0

0

0

0

   

80

 

Sub_Cut

23 (11.5)

0

0

0

0

0

0

   

23(1.6)

 

Muscle

43(21.5)

6 (6)

0

0

0

0

0

   

49(3.5)

IL-4R KO

GO

5(2.5)

0

0

0

0

0

0

   

5(0.3)

 

Peri-Cav

2(1.0)

0

0

0

0

0

0

   

2(0.1)

 

Plu-Cav

1(0.5)

0

0

0

0

0

0

   

1(0.1)

 

Heart/Lung

0

0

0

0

0

0

0

   

0

 

Total

74(6.2)

6(1.2)

0

0

0

0

0

    
 

Nb of mice dissected

5

5

4

3

4

3

3

4

3

 

34

 

Nb of larvae recovered

236

109

50

28

7

0

0

0

0

 

430

 

Sub_Cut

188(37.6)

64(12.8)

27(6.8)

14(4.7)

3(0.8)

0

0

0

0

 

296(8.7)

 

Muscle

29(5.8)

32(6.4)

8(2.0)

2(0.7)

2(0.5)

0

0

0

0

 

73(2.1)

IFN-γ KO

GO

7(1.4)

2(0.4)

2(0.5)

1(0.3)

2(0.5)

0

0

0

0

 

14(0.4)

 

Peri-Cav

10(2.0)

4(0.8)

5(1.3)

6(2.0)

0

0

0

0

0

 

25(0.7)

 

Plu-Cav

2(0.4)

5(1.0)

5(1.3)

4(1.3)

0

0

0

0

0

 

16(0.5)

 

Heart/Lung

0

2(0.4)

3(0.8)

1(0.3)

0

0

0

0

0

 

6(0.2)

 

Total

236(7.9)

109(3.6)

50(2.1)

28(1.6)

7(0.3)

0

0

0

0

  
 

Nb of mice dissected

3

3

3

4

4

4

2

2

  

25

 

Nb of larvae recovered

84

62

76

23

25

11

2

   

283

 

Sub_Cut

58(19.3)

25(8.3)

31(10.3)

10(2.5)

8(2.0)

3(0.8)

2(1)

0

  

137(5.5)

 

Muscle

22(7.3)

32(10.7)

29(9.7)

10(2.5)

11(2.8)

8(2.0)

0

0

  

112(4.5)

IFN-γ/IL-5 DKO

GO

0

0

2(0.7)

0

1(0.3)

0

0

0

  

3(0.1)

 

Peri-Cav

4(1.3)

5(1.7)

7(2.3)

2(0.5)

5(1.3)

0

0

0

  

23(0.9)

 

Plu-Cav

0

0

6(2.0)

1(0.3)

0

0

0

0

  

7(0.3)

 

Heart/Lung

0

0

1(0.3)

0

0

0

0

0

  

1(0.0)

 

Total

84(4.7)

62(3.5)

76(4.2)

23(0.9)

25(1.1)

11(0.5)

2(0.2)

0

   
 

Nb of mice dissected

5

7

5

6

5

4

5

4

2

5

48

 

Nb of larvae recovered

195

80

100

60

62

20

2

5

0

0

524

 

Sub_Cut

145(29.0)

36(5.1)

34(6.8)

19(3.2)

12(2.4)

7(1.8)

0

1(0.3)

0

0

254(4.9)

 

Muscle

29(5.8)

38(5.4)

51(10.2)

31(5.2)

41(8.2)

13(3.3)

2(0.4)

2(0.5)

0

0

207(3.9)

IL-5 KO

GO

5(1.0)

2(0.3)

0.0

2(0.3)

0

0

0

0

0

0

9(0.2)

 

Peri-Cav

14(2.8)

2(0.3)

4(0.8)

4(0.7)

9(1.8)

0

0

1(0.3)

0

0

34(0.7)

 

Plu-Cav

2(0.4)

2(0.3)

8(1.6)

1(0.2)

0

0

0

1(0.3)

0

0

14(0.3)

 

Heart/Lung

0

0

3(0.6)

3(0.5)

0

0

0

0

0

0

6(0.1)

 

Total

195(6.5)

80(1.9)

100(3.3)

60(1.7)

62(1.8)

20(0.8)

2(0.1)

5(0.2)

0

0

524(1.6)

 

Nb of mice dissected

1

3

3

4

4

3

3

2

2

2

27

 

Nb of larvae recovered

48

86

39

89

79

6

51

27

11

3

439

 

Sub_Cut

35(35)

53(17.7)

15(5.0)

36(9.0)

22(5.5)

1(0.3)

7(2.3)

1(0.5)

4(2.0)

0.0

174(7.7)

 

Muscle

10(10)

23(7.7

23(7.6)

31(7.8)

34(8.5)

5(1.7)

36(12.0)

23(11.5)

3(1.5)

2(1.0)

190(6.9)

IL-4/IL-5 DKO

GO

0

2(0.7)

0

1(0.3)

1(0.3)

0

1(0.3)

0

0

0

5(0.1)

 

Peri-Cav

2(2)

6(2.0)

1(0.3)

10(2.5)

7(1.8)

0

4(1.3)

1(0.5)

0

0

31(0.8)

 

Plu-Cav

1(1)

2(0.7)

0

9(2.3)

12(3.0)

0

3(1.0)

1(0.5)

1(0.5)

0

29(0.9)

 

Heart/Lung

0

0

0

2(0.5)

3(0.8)

0

0

1(0.5)

3(1.5)

1(0.5)

10(0.4)

 

Total

48(8)

86(2.2)

39(2.2)

89(3.7)

79(3.3)

51(0.3)

51(2.7)

27(2.3)

11(0.9)

3(0.3)

439(2.6)

  1. DPI: day post infection; Sub_Cut: Subcutaneous tissue; GO: Genital organ; Peri-Cav: peritoneal cavity; Plu-Cav: Pleural cavity. The figures in brackets are the mean larvae recovered which represent the total number of larvae recovered in each organ divided by the number of animals dissected.