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Table 3 Log10 HA titer from HA assay in combined treatments with virus as compared to virus control group

From: Potential antiviral effects of some native Iranian medicinal plants extracts and fractions against influenza A virus

Plant

Extracts or Fractions

Log HA (mean ± SD)

Co-pen

Pre-pen

Post-pen

Glycyrrhiza glabra

Crude E.

0.90 ± 1.28**

1.20 ± 0.43*

1.50 ± 0.00

Glycyrrhiza glabra

Chloroform F.

2.11 ± 0.00

2.11 ± 0.00

1.81 ± 0.43

Glycyrrhiza glabra

Methanol F.

0.75 ± 1.06**

1.96 ± 0.21

2.11 ± 0.00

Myrtus communis

Crude E.

1.66 ± 0.21

1.66 ± 0.21

1.66 ± 0.21

Myrtus communis

Chloroform F.

0.75 ± 1.06**

1.20 ± 0.43*

0.75 ± 1.06**

Myrtus communis

Methanol F.

1.50 ± 0.43

0.75 ± 0.21**

1.20 ± 0.00*

Melissa officinalis

Crude E.

1.35 ± 0.21*

1.96 ± 0.21

2.11 ± 0.00

Melissa officinalis

Chloroform F.

1.66 ± 0.21

1.66 ± 0.21

1.66 ± 0.21

Melissa officinalis

Methanol F.

0.60 ± 0.85**

2.11 ± 0.00

1.96 ± 0.21

Hypericum perforatum

Crude E.

1.50 ± 0.43

1.81 ± 0.00

2.11 ± 0.00

Hypericum perforatum

Chloroform F.

1.66 ± 0.21

1.81 ± 0.01

1.66 ± 0.21

Hypericum perforatum

Methanol F.

1.50 ± 0.43

1.66 ± 0.21

1.50 ± 0.43

Tilia platyphyllos

Crude E.

1.81 ± 0.00

1.65 ± 0.21

1.50 ± 0.00

Tilia platyphyllos

Chloroform F.

1.50 ± 0.43

1.66 ± 0.21

1.50 ± 0.00

Tilia platyphyllos

Methanol F.

1.20 ± 0.00*

1.96 ± 0.21

1.81 ± 0.00

Salix alba

Crude E.

1.20 ± 0.43*

1.35 ± 0.21*

1.20 ± 0.43*

Salix alba

Chloroform F.

1.35 ± 0.21*

1.81 ± 0.43

1.35 ± 0.21*

Salix alba

Methanol F.

1.50 ± 0.43

1.65 ± 0.64

1.65 ± 0.64

Camellia sinensis

Crude E.

2.26 ± 0.2

1.96 ± 0.21

1.96 ± 0.21

Camellia sinensis

Chloroform F.

1.81 ± 0.000

1.96 ± 0.21

2.11 ± 0.43

Camellia sinensis

Methanol F.

2.26 ± 0.21

2.26 ± 0.21

1.50 ± 0.00

Camellia sinensis (fermented)

Crude E.

1.65 ± 0.21

1.81 ± 0.00

1.66 ± 0.21

Camellia sinensis (fermented)

Chloroform F.

1.20 ± 0.43*

1.35 ± 0.64*

1.35 ± 0.64*

Camellia sinensis (fermented)

Methanol F.

1.50 ± 0.00

1.81 ± 0.00

1.81 ± 0.00

Amantadine hydrochloride

–

0.30 ± 0.00**

2.11 ± 0.00

2.11 ± 0.00

Oseltamivir carboxylate

–

0.00 ± 0.00**

0.00 ± 0.00**

0.00 ± 0.00**

Influenza virus

–

2.41 ± 0.00

2.41 ± 0.00

2.41 ± 0.00

  1. Data presented as mean ± SD are averages of two independent HA titration which were tested in duplicates. *, **: Significantly and highly significantly different from values obtained for compound-treated samples compared to untreated sample (P ≤ 0.05 & P ≤ 0.01) analyzed by SPSS, Tukey post-hoc test