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Table 2 The effects of amino acids on lifespan in daf-16 mutant and skn-1 knockdown C. elegans

From: Mechanisms of amino acid-mediated lifespan extension in Caenorhabditis elegans

Strain

Treatment

% of N2 mean lifespan

% of untreated mean lifespan

p-value

# of worms

Replicates

daf-16(mgDf50)

Control

73

 

<0.001

608

7

5 mM histidine

 

92

<0.001

286

2

5 mM proline

 

106

0.0871

133

2

1 mM alanine

 

102

0.111

107

2

1 mM tryptophan

 

118

0.008

183

2

10 mM serine

 

105

0.104

161

2

10 mM glutamine

 

95

0.107

125

2

5 mM cysteine

 

95

0.107

115

2

10 mM cysteine

 

81

<0.001

105

2

5 mM tyrosine

 

96

0.578

140

2

5 mM lysine

 

99

0.907

130

2

N2 (skn-1 RNAi) with live bacteria

Control

59

 

<0.001

156

3

1 mM tryptophan

 

107

0.042

125

3

10 mM serine

 

107

0.01

175

3

5 mM histidine

 

103

0.296

139

3

5 mM proline

 

105

0.088

111

2

N2 with live bacteria

Control

-

  

298

5

1 mM tryptophan

 

109

<0.001

317

5

10 mM serine

 

109

<0.001

375

5

5 mM histidine

 

110

<0.001

277

5

5 mM proline

 

108

<0.001

268

4