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Table 2 Circulating concentrations of biomarkers by quartiles of different dietary protein intake a

From: Dietary protein and plasma total homocysteine, cysteine concentrations in coronary angiographic subjects

 

Total protein intake

Animal protein intake

Plant protein intake

Characteristics

Q1

Q4

P

Q1

Q4

P

Q1

Q4

P

n

254

253

 

254

253

 

254

253

 

Homocysteine, μmol/L

14.4 ± 6.1

16.7 ± 7.8

<0.001

13.3 ± 5.5

17.9 ± 8.3

<0.001

17.1 ± 7.7

13.5 ± 5.1

<0.001

Cysteine, μmol/L

245 ± 44

252 ± 51

0.01

244 ± 44

249 ± 52

0.06

251 ± 49

247 ± 48

0.54

Folate, nmol/L

9.84 ± 3.27

9.85 ± 3.65

0.96

10.16 ± 3.61

9.38 ± 3.39

0.08

9.22 ± 3.21

10.46 ± 3.85

0.001

PLP, nmol/L

35.7 ± 9.76

36.2 ± 9.87

0.30

36.6 ± 9.4

35.9 ± 9.3

0.23

34.9 ± 9.3

38.5 ± 9.8

0.001

Vitamin B12, pmol/L

311 ± 66

307 ± 70

0.58

319 ± 72

302 ± 69

0.20

298 ± 64

326 ± 73

<0.001

Triglycerides, mmol/L

1.87 ± 1.55

1.77 ± 1.08

0.55

1.99 ± 1.61

1.84 ± 1.20

0.17

1.89 ± 1.34

1.79 ± 1.05

0.67

Total cholesterol, mmol/L

4.66 ± 1.25

4.72 ± 0.98

0.73

4.68 ± 1.27

4.73 ± 1.00

0.56

4.62 ± 1.17

4.75 ± 1.07

0.38

LDL cholesterol, mmol/L

2.96 ± 1.08

2.94 ± 0.90

0.91

2.97 ± 1.08

2.89 ± 0.89

0.46

2.92 ± 1.04

3.04 ± 0.92

0.53

HDL cholesterol, mmol/L

1.06 ± 0.29

1.12 ± 0.31

0.10

1.08 ± 0.30

1.12 ± 0.31

0.12

1.04 ± 0.29

1.10 ± 0.28

0.15

Fasting plasma glucose, mmol/L

6.50 ± 3.34

6.34 ± 2.55

0.76

6.54 ± 3.20

6.47 ± 2.64

0.54

6.61 ± 3.03

6.52 ± 2.77

0.41

Creatinine, μmol/L

90.5 ± 53.8

81.4 ± 28.6

0.01

90.4 ± 56.0

81.1 ± 29.2

0.11

93.6 ± 57.4

83.0 ± 35.7

0.03

  1. aValues are mean ± SD. The means were evaluated by ANCOVA with adjustment for age, sex, BMI, total energy intake, and total fat intake.