Table 1 Biomechanical parameters of uninfected and infected erythrocytes

From: Hemoglobin S and C affect biomechanical membrane properties of P. falciparum-infected erythrocytes

 

Bending modulus κ [10−19 N m]

Surface tension σ [10−6 N m−1]

Membrane confinement γ [106 N m−3]

Apparent RBC viscosity ηRBC [10−2 Nm−2 s]

 

HbAA

2.7 ± 0.6 (42)

0.7 ± 0.2 (42)

0.5 ± 0.2 (42)

1.2 ± 0.7 (42)

Uninfected

HbAS

2.8 ± 0.6 (41)

0.8 ± 0.2 (41)*

0.6 ± 0.2 (41)*

0.9 ± 0.6 (39)

 

HbAC

2.5 ± 0.8 (36)

1.1 ± 0.3 (36)*,#

0.9 ± 0.4 (36)*,#

1.2 ± 0.6 (36)

 

HbAA

2.6 ± 1.0 (30)

1.3 ± 0.5 (30)$

1.9 ± 1.5 (30)$

1.9 ± 1.1 (30)$

Ring

HbAS

2.5 ± 0.8 (25)

1.4 ± 0.6 (25)$

2.3 ± 1.6 (25)$

1.9 ± 1.4 (25)$

 

HbAC

3.9 ± 1.4 (25)$,§,&

2.0 ± 0.6 (25)$,§,&

2.2 ± 1.0 (25)$,§

3.3 ± 1.8 (25)$,§,&

 

HbAA

3.4 ± 1.4 (29)$

3.3 ± 1.6 (29)$

5.3 ± 3.9 (29)$

8.8 ± 5.2 (29)$

Trophozoite

HbAS

5.9 ± 1.2 (39)$,§

3.2 ± 1.2 (39)$

3.7 ± 2.3 (39)$,§

9.2 ± 4.6 (25)$

 

HbAC

5.5 ± 2.2 (40)$,§

4.3 ± 1.4 (40)$,§,&

6.0 ± 3.4 (40)$,&

9.9 ± 10.5 (25)$

Knobless trophozoite

HbAA

3.5 ± 1.0 (47)$

2.2 ± 0.7 (47)$,§

2.2 ± 1.2 (47)$,§

9.1 ± 5.4 (34)$

  1. The means ± standard deviations are shown for (n) independent determination
  2. *p < 0.05 compared with uninfected HbAA erythrocytes; #p < 0.05 compared with uninfected HbAS erythrocytes; $p < 0.05 compared with the corresponding uninfected erythrocyte variant. §p < 0.05 compared with age-matched parasitized HbAA erythrocytes; &p < 0.05 compared with age-matched parasitized HbAS erythrocytes; &p < 0.05 compared with age-matched parasitized HbAS erythrocytes; statistical significance was determined using Welch t-test