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Table 1 Inhibitory activities of Chinese herbs extract on A(H1N1) influenza virus neuraminidase

From: Screening of neuraminidase inhibitory activities of some medicinal plants traditionally used in Lingnan Chinese medicines

No.

Positive control and Botanical name

Botanical part

Extract

Inhibition (%)a

IC50b

Voucher No.

Zanamivir

99.8

0.05

1

Melaphis chinensis (Bell)Baker

cecidium

MeOH

103.6

4.1

MCB091101

2

Amomurn villosum Lour.

fruit

MeOH

92.2

4.9

CG20080829

3

Sanguisorba officinalis L.

root

MeOH

100.8

5.1

SOL091101

4

Melaphis chinensis (Bell)Baker

cecidium

EtOAc

99.3

5.3

MCB091101

5

Flos Caryophylli

flowers

MeOH

94.1

9.1

SA091101

6

Areca catechu Linn

fruit

MeOH

85.1

19.3

ACL091101

7

Artemisia capillaries Thunb

whole plant

MeOH

91.3

19.4

ACT091101

8

Terminalia chebula Retz

fruit

EtOAc

78.4

20.3

TCR091101

9

Duchesnea indica (Andr.) Focke

whole plant

EtOAc

69.1

23.3

DIF091101

10

Terminalia chebula Retz.

fruit

MeOH

68

24.3

TCR091101

10

Murraya exotica L.

stem and leaves

MeOH

65.7

28.9

MEL091101

11

Geranium carolinianum L.

whole plant

MeOH

64.8

28.9

GCL091101

12

Polygonum cuspidatum

rhizome

EtOAc

63.9

29.8

PC091101

13

Saposhnikovia divaricata (Turez.) Schischk.

root

EtOAc

53.1

37.3

SDS091101

14

Callicarpa formosana Rolfe

fruit

MeOH

47.9

NTd

CFR091103

15

Gardenia jasminoides Ellis

fruit

MeOH

46.6

NT

GJE091101

16

Duchesnea indica (Andr.) Focke

whole plant

EtOAc

46.1

NT

DIF091101

17

Rosa laevigata Michx.

stem and leaves

EtOAc

45.8

NT

RLM091103

18

Euphorbia humifusa Willd. ex Schlecht.

whole plant

MeOH

43.9

NT

EHW091101

19

Litchi chinensis Sonn.

seed

EtOAc

43.9

NT

LCS091101

20

Punica granatum L.

fruit peel

MeOH

43.4

NT

PGL091101

21

Scutellaria baicalensis Georgi

root

EtOAc

41.3

NT

SBG091101

22

Amomum villosum Lour.

fruit

EtOAc

40.5

NT

CG20080829

23

Geranium carolinianum L.

whole plant

EtOAc

40.1

NT

GCL091101

24

Isatis indigotica Fort

stem and leaves

EtOAc

40.1

NT

IIF091103

25

Onosma gmelinii Ledeb

root

EtOAc

40

NT

OGL091101

26

Houttuynia cordata Thunb

whole plant

EtOAc

38.5

NT

HCT091101

27

Altingia chinensis (Champ.) Oliver ex Hance

stem and leaves

EtOAc

37.3

NT

ACO091103

28

Pogostemon cablin (Blanco) Bent.

whole plant

EtOAc

36.7

NT

PCB091101

29

Polygonum cuspidatum

rhizome

MeOH

36.1

NT

PC091101

30

Punica granatum L.

fruit peel

EtOAc

35.5

NT

PGL091101

31

Rosa laevigata Michx.

stem and leaves

MeOH

34.4

NT

RLM091103

32

Dianella ensifolia (Linn.) Redouté

fruit

EtOAc

31.5

NT

DER091103

33

Elsholtzia ciliata (Thunb.) Hyland.

whole plant

MeOH

31.3

NT

ECH091101

34

Atractylodes Lancea (Thunb) DC.

root

EtOAc

30.4

NT

ALD091101

35

Cynanchum otophyllum Schneid.

root

EtOAc

29.3

NT

COS091101

36

Homalocladium platycladum (F. Muell.) Bailey

whole plant

MeOH

29.1

NT

HPB091101

37

Cinnamomum cassia Presl

branch

MeOH

28.9

NT

CCP091101

38

Elsholtzia ciliata (Thunb.) Hyland.

whole plant

EtOAc

28.1

NT

ECP091101

39

Sarcandra glabra (Thunb.) Nakai

stem and leaves

EtOAc

26.8

NT

SGN091103

40

Altingia chinensis (Champ.) Oliver ex Hance

stem and leaves

MeOH

25.8

NT

ACO091103

41

Litchi chinensis Sonn.

seed

MeOH

25.5

NT

LCS091101

42

Phellodendron chinense Schneid

bark

EtOAC

25.4

NT

PCS091101

43

Euphorbia humifusa Willd. ex Schlecht.

whole plant

EtOAc

23.6

NT

EHW091101

44

Glycyrrhiza uralensis Fisch.

rhizome

EtOAc

23.1

NT

GUF091101

45

Woodwardia japonica (L. f.) Sm.

rhizome

MeOH

23

NT

WJS091101

46

Ardisia japonica (Thunb) Blume

whole plant

MeOH

22.7

NT

AJB091101

47

Cinnamomum cassia Presl

branch

EtOAc

22.7

NT

CCP091101

48

Equisetum hyemale L.

whole plant

EtOAc

22.1

NT

EHL091101

49

Fraxinus rhynchophylla Hance

bark

EtOAc

22.1

NT

FRH091101

50

Ardisia japonica (Thunb.) Blume

whole plant

EtOAc

21.7

NT

AJB091101

51

Andrographis paniculata (Burm. f.) Nees

whole plant

EtOAc

20.8

NT

APN091101

52

Punica granatum Linn.

stem

EtOAc

20.2

NT

AGL091103

53

Syzygium aromaticum

flowers

EtOAc

19.5

NT

SA091101

54

Artemisia capillaris Thunb.

whole plant

EtOAc

19.2

NT

ACT091101

55

Nepeta cataria L.

whole plant

MeOH

18.9

NT

NCL091101

56

Lonicera japonica Thunb.

flowers

MeOH

18

NT

AJT091101

57

Woodwardia japonica (L. f.) Sm.

rhizome

EtOAc

17.9

NT

WJS091101

58

Nepeta cataria L.

whole plant

EtOAc

17.4

NT

NCL091101

59

Dendranthema indicum (L.) Des Moul.

flowers

EtOAc

16.5

NT

DID091101

60

Senecio scandens Buch. -Ham. ex D. Don

whole plant

MeOH

16.3

NT

SSB091101

61

Onosma gmelinii Ledeb

root

MeOH

15.9

NT

OGL091101

62

Evodia rutaecarpa (Juss.) Benth.

fruit

MeOH

15.5

NT

ERB091101

63

Ligusticum chuanxiong Hort.

root

MeOH

15.5

NT

LCH091101

64

Atractylodes Lancea (Thunb.) DC.

root

MeOH

15.2

NT

ALD091101

65

Punica granatum L.

leaves

MeOH

15

NT

PGL091101

66

Artemisia indices Willd.

leaves

MeOH

14.8

NT

AIW091101

67

Serissa japonica (Thunb.) Thunb.

stem and leaves

EtOAc

14.8

NT

SJT091101

68

Prunella vulgaris L.

whole plant

MeOH

14.1

NT

PVL091101

69

Dicliptera chinensis (L.) Juss.

whole plant

MeOH

14

NT

DCJ091101

70

Glycyrrhiza uralensis Fisch.

rhizome

MeOH

13.7

NT

GUF091101

71

Platycladus orientalis (L.) Franco

leaves

EtOAc

13.4

NT

POF091101

72

Angelica dahurica (Fisch. ex Hoffm.) Benth.

root

MeOH

13.3

NT

ADB091101

73

Sarcandra glabra (Thunb.) Nakai

stem and leaves

MeOH

13.3

NT

SGN091101

74

Cynanchum otophyllum Schneid.

root

MeOH

13

NT

COS091101

75

Clerodendrum fortunatum Linn.

stem and leaves

EtOAc

12.5

NT

CFL091101

76

Scutellaria baicalensis Georgi

root

MeOH

12.2

NT

SBG091101

77

Sophora flavescens Alt.

root

MeOH

11.6

NT

SFA091101

78

Paris verticillata M.Bieb.

rhizome

EtOAc

11.4

NT

PVM091101

79

Semiaquilegia adoxoides (DC.) Makino

whole plant

EtOAc

11.4

NT

SAM091101

80

Magnolia liliflora Desr.

flowers

EtOAc

11.3

NT

MLD091101

81

Albizia julibrissin Durazz.

flowers

MeOH

NAc

NT

AJD091101

82

Albizia julibrissin Durazz.

flowers

EtOAc

NA

NT

AJD091101

83

Andrographis paniculata (Burm. f.) Nees

whole plant

MeOH

NA

NT

APN091101

84

Angelica dahurica (Fisch. ex Hoffm.) Benth.

root

EtOAc

NA

NT

ADB091101

85

Arctium lappa L.

seed

MeOH

NA

NT

ALL091101

86

Arctium lappa L.

seed

EtOAc

NA

NT

ALL091101

87

Areca catechu Linn

fruit

EtOAc

NA

NT

ACL091101

88

Artemisia argyi Levl. et Van.

leaves

MeOH

NA

NT

AAL091101

89

Artemisia argyi Levl. et Van.

leaves

EtOAc

NA

NT

AAL091101

90

Artemisia carvifolia Buch. -Ham. ex Roxb.

whole plant

EtOAc

NA

NT

ACB091101

91

Artemisia carvifolia Buch. -Ham. ex Roxb.

whole plant

MeOH

NA

NT

ACB091101

92

Artemisia indices Willd.

leaves

EtOAc

NA

NT

AIW091103

93

Bidens pilosa Linn.

whole plant

EtOAc

NA

NT

BPL091103

94

Bidens pilosa Linn.

whole plant

MeOH

NA

NT

BPL091103

95

Bupleurum tenue Buch-Ham. ex D. Don

root

EtOAc

NA

NT

BTB091101

96

Bupleurum tenue Buch-Ham. ex D. Don

root

MeOH

NA

NT

BTB091101

97

Callicarpa formosana Rolfe

fruit

EtOAc

NA

NT

CFR091103

98

Clerodendrum fortunatum Linn.

stem and leaves

MeOH

NA

NT

CFL091103

99

Clinopodium megalanthum

seed

EtOAc

NA

NT

CMC091101

100

Clinopodium megalanthum

seed

MeOH

NA

NT

CMC091101

101

Crataegus pinnatifida Bge.

fruit

MeOH

NA

NT

CPB091101

102

Crataegus pinnatifida Bge.

fruit

EtOAc

NA

NT

CPB091101

103

Dendranthema indicum (L.) Des Moul.

flowers

MeOH

NA

NT

DID091101

104

Dendranthema morifolium (Ramat.) Tzvel.

flowers

EtOAc

NA

NT

DMT091101

105

Dendranthema morifolium (Ramat.) Tzvel.

flowers

MeOH

NA

NT

DMT091101

106

Dianella ensifolia (Linn.) Redouté

fruit

MeOH

NA

NT

DER091103

107

Dicliptera chinensis (L.) Juss.

whole plant

EtOAc

NA

NT

DCJ091103

108

Duchesnea indica (Andr.) Focke

whole plant

MeOH

NA

NT

DIF091103

109

Epaltes australis Less.

whole plant

EtOAc

NA

NT

EAL091101

110

Epaltes australis Less.

whole plant

MeOH

NA

NT

EAL091101

111

Equisetum hyemale L.

whole plant

MeOH

NA

NT

EHL091101

112

Euchresta japonica Hook. f. ex Regel

root

EtOAc

NA

NT

EJH091101

113

Euchresta japonica Hook. f. ex Regel

root

MeOH

NA

NT

EJH091101

114

Eupatorium catarium Veldkamp

whole plant

MeOH

NA

NT

ECV091103

115

Eupatorium catarium Veldkamp

whole plant

EtOAc

NA

NT

ECV091103

116

Eupatorium fortunei Turcz.

whole plant

EtOAc

NA

NT

EFT091101

117

Eupatorium fortunei Turcz.

whole plant

MeOH

NA

NT

EFT091101

118

Eupolyphaga seu Steleophaga

insect

EtOAc

NA

NT

ESS091101

119

Eupolyphaga seu Steleophaga

insect

MeOH

NA

NT

ESS091101

120

Evodia rutaecarpa (Juss.) Benth.

fruit

EtOAc

NA

NT

ERB091101

121

Ficus hirta Vahl

leaves

MeOH

NA

NT

FHV091101

122

Ficus hirta Vahl

leaves

EtOAc

NA

NT

FHV091101

123

Forsythia suspensa (Thunb.) Vahl

fruit

MeOH

NA

NT

FSV091101

124

Forsythia suspensa (Thunb.) Vahl

fruit

EtOAc

NA

NT

FSV091101

125

Fraxinus rhynchophylla Hance

bark

MeOH

NA

NT

FRH091101

126

Gardenia jasminoides Ellis

fruit

EtOAc

NA

NT

GJE091101

127

Homalocladium platycladum (F. Muell.) Bailey

whole plant

EtOAc

NA

NT

HPB091103

128

Homalomena occulta (Lour.) Schot

rhizome

MeOH

NA

NT

HOS091101

129

Homalomena occulta (Lour.) Schot

rhizome

EtOAc

NA

NT

HOS091101

130

Houttuynia cordata Thunb

whole plant

MeOH

NA

NT

HCT091101

131

Ilex cornuta Lindl

stem

MeOH

NA

NT

ICL091103

132

Ilex cornuta Lindl

stem

EtOAc

NA

NT

ICL091103

133

Inula japonica Thunb.

flowers

MeOH

NA

NT

IJT091101

134

Inula japonica Thunb.

flowers

EtOAc

NA

NT

IJT091101

135

Isatis indigotica Fort

stem and leaves

MeOH

NA

NT

IIF091103

136

Ligusticum chuanxiong Hort.

root

EtOAc

NA

NT

LCH091101

137

Lobelia chinensis Lour.

whole plant

MeOH

NA

NT

LCH091101

138

Lobelia chinensis Lour.

whole plant

EtOAc

NA

NT

LCL091101

139

Lonicera confusa (Sweet) DC.

stem and leaves

MeOH

NA

NT

LCD091103

140

Lonicera confusa (Sweet) DC.

stem and leaves

EtOAc

NA

NT

LCD091103

141

Lonicera japonica Thunb.

flowers

EtOAc

NA

NT

LJT091101

142

Lonicera japonica Thunb.

stem and branch

MeOH

NA

NT

LJT091101

143

Lonicera japonica Thunb.

stem and branch

EtOAc

NA

NT

LJT091101

144

Lycium chinense Mill.

root bark

MeOH

NA

NT

LCM091101

145

Lycium chinense Mill.

Root bark

EtOAc

NA

NT

LCM091101

146

Magnolia liliflora Desr.

flowers

MeOH

NA

NT

MLD091101

147

Melia azedarach L.

bark

EtOAc

NA

NT

MAL091103

148

Melia azedarach L.

bark

MeOH

NA

NT

MAL091103

149

Murraya exotica L.

stem and leaves

EtOAc

NA

NT

MEL091103

150

Mussaenda pubescens Ait. f.

stem and leaves

EtOAc

NA

NT

MPA091103

151

Mussaenda pubescens Ait. f.

stem and leaves

MeOH

NA

NT

MPA091103

152

Paris verticillata M.Bieb.

rhizome

MeOH

NA

NT

PVM091101

153

Perilla frutescens (L.) Britt.

flowers

EtOAc

NA

NT

PFB091103

154

Perilla frutescens (L.) Britt.

flowers

MeOH

NA

NT

PFB091103

155

Peucedanum praeruptorum Dunn

root

EtOAc

NA

NT

PPD091101

156

Peucedanum praeruptorum Dunn

root

MeOH

NA

NT

PPD091101

157

Phellodendron chinense Schneid

bark

MeOH

NA

NT

PCS091101

158

Phytolacca acinosa Roxb.

root

EtOAc

NA

NT

PAR091101

159

Phytolacca acinosa Roxb.

root

MeOH

NA

NT

PAR091101

160

Pinellia ternata (Thunb.) Breit.

stem

MeOH

NA

NT

PTB091101

161

Pinellia ternata (Thunb.) Breit.

stem

EtOAc

NA

NT

PTB091101

162

Platycladus orientalis (L.) Franco

leaves

MeOH

NA

NT

POF091101

163

Pogostemon cablin (Blanco) Bent.

whole plant

MeOH

NA

NT

PCB091101

164

Prunella vulgaris L.

whole plant

EtOAc

NA

NT

PVL091101

165

Punica granatum L.

leaves

EtOAc

NA

NT

PGL091103

166

Punica granatum Linn.

stem

MeOH

NA

NT

PGL091103

167

Sanguisorba officinalis L.

root

EtOAc

NA

NT

SOL091101

168

Saposhnikovia divaricata (Trucz.) Schischk.

root

MeOH

NA

NT

SDS091101

169

Scaphium wallichii Shott & Endl.

seed

MeOH

NA

NT

SWS091101

170

Scaphium wallichii Shott & Endl.

seed

EtOAc

NA

NT

SWS091101

171

Semiaquilegia adoxoides (DC.) Makino

whole plant

MeOH

NA

NT

SAM091101

172

Senecio scandens Buch-Ham. ex D. Don

whole plant

EtOAc

NA

NT

SSB091101

173

Serissa japonica (Thunb.) Thunb.

stem and leaves

MeOH

NA

NT

SJT091103

174

Sophora flavescens Alt.

root

EtOAc

NA

NT

SFA091101

175

Stemona japonica (Bl.) Miq.

root

MeOH

NA

NT

SJM091101

176

Stemona japonica (Bl.) Miq.

root

EtOAc

NA

NT

SJM091101

177

Strobilanthes cusia (Ness) W. Ktze.

stem and leaves

MeOH

NA

NT

SCW091101

178

Strobilanthes cusia (Ness) W. Ktze.

stem and leaves

EtOAc

NA

NT

SCW091101

179

Thlaspi arvense L.

whole plant

MeOH

NA

NT

TAL091103

180

Thlaspi arvense L.

whole plant

EtOAc

NA

NT

TAL091103

181

Turczaninovia fastigiata (Fisch.) DC.

flowers

MeOH

NA

NT

TFD091101

182

Turczaninovia fastigiata (Fisch.) DC.

flowers

EtOAc

NA

NT

TFD091101

183

Vitex trifolia L.

stem and leaves

EtOAc

NA

NT

VTL091103

184

Vitex trifolia L.

stem and leaves

MeOH

NA

NT

VTL091103

185

Wikstroemia indica (Linn.) C. A. Mey.

whole plant

MeOH

NA

NT

WIC091103

186

Wikstroemia indica (Linn.) C. A. Mey.

whole plant

EtOAc

NA

NT

WIC091103

187

Xanthium sibiricum Patrin ex Widder

fruit

EtOAc

NA

NT

XSP091103

188

Xanthium sibiricum Patrin ex Widder

fruit

MeOH

NA

NT

XSP091103

189

Zanthoxylum nitidum (Roxb.) DC.

root

MeOH

NA

NT

ZND091101

190

Zanthoxylum nitidum (Roxb.) DC.

root

EtOAc

NA

NT

ZND091101

  1. aPercentage inhibition was calculated relative to a blank group containing virus NA but no inhibitors, final concentration at 40 μg/mL; bIC50 values represent the concentration that caused 50% NA enzyme activity loss, the average of at least three independent assays, IC50 values are in μg/mL. c: not active; d: not test