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Table 1 Mean corpuscular fragility and percentage stability of sickle erythrocytes in the presence of fractionated leaf extracts of A. occidentale, P. guajava, and T. catappa

From: Phytocomponents from Anacardium occidentale, Psidium guajava, and Terminalia catappa altered membrane osmotic stability of sickle erythrocytes

[Extract fraction]

A. occidentale

P. guajava

T. catappa

MCF (g%)

%RMS

MCF (g%)

%RMS

MCF (g%)

%RMS

Petroleum ether

Control

0.57 ± 0.24

–

0.17 ± 0.01

–

0.34 ± 0.01

–

40 mg%

0.61 ± 0.06

7.02a

0.18 ± 0.01

5.88a

0.31 ± 0.03

8.82

60 mg%

0.51 ± 0.06

10.53

0.19 ± 0.01

11.76a

0.28 ± 0.02

17.65

80 mg%

0.48 ± 0.05

15.79

0.18 ± 0.01

5.88a

0.25 ± 0.02

9.00

n-hexane

Control

0.27 ± 0.05

–

0.47 ± 0.04

–

0.28 ± 0.03

–

40 mg%

0.26 ± 0.02

3.70

0.81 ± 0.02

72.34a

0.73 ± 0.04

160.71a

60 mg%

0.43 ± 0.06

59.26a

0.52 ± 0.09

10.64a

0.86 ± 0.01

207.14a

80 mg%

0.32 ± 0.06

18.52a

0.30 ± 0.06

36.17

0.34 ± 0.15

21.43a

Chloroform

Control

0.17 ± 0.01

–

0.47 ± 0.04

–

0.47 ± 0.06

–

40 mg%

0.18 ± 0.01

5.88a

0.51 ± 0.02

8.51 a

0.57 ± 0.02

21.28a

60 mg%

0.18 ± 0.01

5.88a

0.66 ± 0.08

40.43a

0.60 ± 0.02

27.66a

80 mg%

0.19 ± 0.01

11.76a

0.78 ± 0.02

65.96a

0.62 ± 0.01

31.91a

Ethylacetate

Control

0.27 ± 0.05

–

0.19 ± 0.02

–

0.47 ± 0.05

–

40 mg%

0.25 ± 0.03

7.41

0.21 ± 0.01

10.53a

0.34 ± 0.02

27.66

60 mg%

0.23 ± 0.01

14.81

0.24 ± 0.01

26.32a

0.34 ± 0.01

27.66

80 mg%

0.21 ± 0.01

22.22

0.22 ± 0.04

15.79a

0.43 ± 0.05

8.51

Residual aqueous

Control

0.26 ± 0.02

–

0.26 ± 0.02

–

0.16 ± 0.00

–

40 mg%

0.29 ± 0.02

11.54a

0.45 ± 0.07

73.08a

0.25 ± 0.02

56.25a

60 mg%

0.23 ± 0.03

11.54

0.58 ± 0.09

123.08a

0.25 ± 0.05

56.25a

80 mg%

0.22 ± 0.01

15.38

0.52 ± 0.03

100.00a

0.26 ± 0.06

62.50a

  1. MCF values are means of 3 determinations ± S.D
  2. %RMS relative membrane stability (%), g% g/100 mL, mg% mg/100 mL
  3. aPercentage of membrane destabilization