Table 3 Serum levels of amino acids in the intervention groups and the placebo group over the study period.

From: Strain specific effects of probiotic supplementation on serum amino acid profiles in Alzheimer’s disease: a randomized, double blind, placebo controlled trial

Variables

Time

Placebo

Groups

I1*

I2#

Mean ± SD

Mean ± SD

Mean ± SD

Valine

Baseline

390.80 ± 68.60

441.95 ± 125.81

409.36 ± 86.80

12-Weeks

359.51 ± 65.69

480.21 ± 131.96

456.67 ± 65.05

Leucine

Baseline

342.28 ± 89.27

414.29 ± 139.87

350.96 ± 93.06

12-Weeks

302.51 ± 51.72

436.47 ± 156.58

409.98 ± 73.93

Isoleucine

Baseline

157.55 ± 70.71

155.55 ± 67.81

166.91 ± 74.07

12-Weeks

125.79 ± 29.44

198.37 ± 86.86

212.91 ± 75.54

Phenylalanine

Baseline

228.60 ± 101.99

247.59 ± 103.18

252.71 ± 114.49

12-Weeks

196.31 ± 55.21

284.19 ± 143.78

325.56 ± 122.90

Tryptophan

Baseline

115.95 ± 84.02

106.54 ± 41.14

105.01 ± 50.37

12-Weeks

84.50 ± 25.99

129.82 ± 73.19

125.38 ± 53.15

Tyrosine

Baseline

141.97 ± 99.24

152.50 ± 83.33

188.29 ± 121.06

12-Weeks

99.43 ± 24.76

198.33 ± 122.12

242.44 ± 128.30

Histidine

Baseline

232.25 ± 192.84

197.37 ± 219.64

199.81 ± 102.71

12-Weeks

163.38 ± 36.96

219.64 ± 96.71

251.65 ± 103.99

Aspartate

Baseline

239.13 ± 158.58

211.80 ± 119.94

310.73 ± 187.44

12-Weeks

184.47 ± 52.99

265.94 ± 145.85

375.93 ± 206.84

Glutamate

Baseline

678.58 ± 201.09

750.65 ± 224.52

656.67 ± 148.66

12-Weeks

568.50 ± 136.96

809.49 ± 267.84

695.95 ± 195.60

Asparagine

Baseline

13.73 ± 8.90

23.20 ± 23.35

31.13 ± 24.77

12-Weeks

12.25 ± 5.30

40.03 ± 44.85

35.58 ± 30.43

Serine

Baseline

346.59 ± 238.51

402.45 ± 188.03

483.79 ± 267.36

12-Weeks

262.52 ± 49.80

520.67 ± 316.10

563.11 ± 275. 61

Glutamine

Baseline

84.47 ± 60.02

127.98 ± 89.14

145.19 ± 98.62

12-Weeks

109.23 ± 61.81

133.79 ± 83.14

167.87 ± 124.25

Arginine

Baseline

300.39 ± 200.73

467.99 ± 281

618.29 ± 339.38

12-Weeks

259.25 ± 86

534.62 ± 319.51

671.81 ± 329.92

Cysteine

Baseline

62.93 ± 125.63

49.55 ± 38.54

43.40 ± 26.13

12-Weeks

64.06 ± 114.52

56.49 ± 48.89

46.95 ± 11.67

Glycine

Baseline

533.01 ± 310.16

620.10 ± 184.50

691.22 ± 222.77

12-Weeks

440.88 ± 158.27

707.47 ± 261.92

748.40 ± 234.26

Threonine

Baseline

257.51 ± 217.82

277.55 ± 161.19

338.15 ± 176.93

12-Weeks

178.15 ± 41.46

351.40 ± 206.81

379.78 ± 198.95

Alanine

Baseline

747.61 ± 123.47

888.92 ± 198.66

837.30 ± 112.64

12-Weeks

682.25 ± 109.52

855.50 ± 225.63

825.63 ± 102

Methionine

Baseline

64.40 ± 85.57

53.57 ± 29.87

72.69 ± 67.94

12-Weeks

36.94 ± 13.80

63.40 ± 40.27

88.17 ± 90.23

Ornithine

Baseline

175.51 ± 92.87

184.59 ± 130.48

220.47 ± 160.29

12-Weeks

150.16 ± 93.51

236.28 ± 203.18

255.06 ± 105.08

Lysine

Baseline

327.39 ± 132.82

405.23 ± 195.29

430.70 ± 179.70

12-Weeks

277.11 ± 75.78

495.43 ± 245.60

478.69 ± 180.69

  1. Values are the mean ± SD and p ˂ 0.05 is considered significant.
  2. * Lactobacillus rhamnosus HA-114.
  3. # Bifidobacterium longum R0175.