Skip to main content

Table 2 Dose-dependent effects of WPH feeding for 30 days on blood and other health markers

From: Postprandial leucine and insulin responses and toxicological effects of a novel whey protein hydrolysate-based supplement in rats

Variable

p-value between conditions

water (n = 5)

low (n = 5)

medium (n = 5)

high (n = 5)

Serum markers

     

Triglycerides (mg/dL)

p = 0.60

184 ± 28

169 ± 18

187 ± 13

153 ± 14

Glucose (mg/dL)

p = 0.32

183 ± 12

154 ± 11

187 ± 17

167 ± 14

Urea Nitrogen (mg/dL)

p = 0.45

25 ± 1

24 ± 1

26 ± 1

24 ± 2

Creatinine (mg/dL)

p = 0.25

0.41 ± 0.01

0.39 ± 0.01

0.44 ± 0.03

0.38 ± 0.02

Sodium (mmol/L)

p = 0.33

145 ± 1

147 ± 1

144 ± 1

146 ± 1

Potassium (mmol/L)

p = 0.20

6.4 ± 1

5.8 ± 0

6.9 ± 1

5.1 ± 0

Chloride (mmol/L)

p = 0.59

99 ± 0

98 ± 1

98 ± 0

99 ± 0

Total Protein (g/dL)

p = 0.17

6.9 ± 0.1

6.7 ± 0.1

6.7 ± 0.1

6.5 ± 0.0

Albumin (g/dL)

p = 0.26

3.5 ± 0.0

3.4 ± 0.0

3.4 ± 0.1

3.4 ± 0.1

Calcium (mg/dL)

p = 0.06

12.8 ± 0.1

12.5 ± 0.2

12.4 ± 0.3

12.0 ± 0.1

Phosphorus (mg/dL)

p = 0.40

10.8 ± 0.5

10.6 ± 0.6

11.7 ± 0.5

10.5 ± 0.4

Cholesterol (mg/dL)

p = 0.34

82 ± 10

64 ± 3

68 ± 7

74 ± 7

Total Bilirubin (mg/dL)

p = 0.08

0.10 ± 0.0

0.10 ± 0.0

0.14 ± 0.0

0.10 ± 0.0

ALT (U/L)

p = 0.68

239 ± 43

254 ± 54

298 ± 34

234 ± 27

ALP (U/L)

p = 0.52

186 ± 16

179 ± 11

161 ± 4

165 ± 18

GGT (U/L)

p = N/A

<3

<3

<3

<3

Total CO2 (mmol/L)

p = 0.14

33 ± 1

37 ± 2

32 ± 2

33 ± 1

Whole blood markers

     

WBC (x10³/μL)

p = 0.88

12.5 ± 0.9

11.3 ± 1.2

12.0 ± 1.2

11.8 ± 0.5

Seg. Neutro (x10³/μL)

p = 0.85

1.7 ± 0.2

1.7 ± 0.6

1.3 ± 0.3

1.8 ± 0.3

Band Neutro (x10³/μL)

p = 0.99

0.0 ± 0.0

0.0 ± 0.0

0.0 ± 0.0

0.0 ± 0.0

Lymphocytes (x10³/μL)

p = 0.74

10.7 ± 0.9

9.6 ± 0.7

10.5 ± 1.0

9.8 ± 0.5

Monocytes (x10³/μL)

p = 0.32

0.07 ± 0.03

0.00 ± 0.00

0.06 ± 0.04

0.05 ± 0.03

Eosinophils (x10³/μL)

p = 0.92

0.12 ± 0.09

0.09 ± 0.07

0.09 ± 0.05

0.16 ± 0.10

Basophils (x10³/μL)

p = 0.99

0.0 ± 0.0

0.0 ± 0.0

0.0 ± 0.0

0.0 ± 0.0

RBC (M/μL)

p = 0.47

8.5 ± 0.1

8.4 ± 0.1

8.6 ± 0.2

8.7 ± 0.1

Hemoglobin (g/dL)

p = 0.08

16.1 ± 0.3

16.9 ± 0.3

16.3 ± 0.2

16.8 ± 0.2

Hematocrit (%)

p = 0.75

52.7 ± 1.1

53.4 ± 0.9

52.7 ± 1.1

53.8 ± 0.5

MCV (fL)

p = 0.29

61.7 ± 0.8

63.5 ± 0.7

61.5 ± 0.9

61.8 ± 0.7

MCH (pg)

p = 0.01

18.8 ± 0.3a

20.1 ± 0.2b

19.1 ± 0.3a

19.3 ± 0.2c

MCHC (g/dL)

p = 0.08

30.5 ± 0.3

31.7 ± 0.2

31.1 ± 0.5

31.2 ± 0.1

Cell Volume (%)

p = 0.19

49.8 ± 0.9

51.4 ± 0.4

49.8 ± 0.6

50.6 ± 0.2

Platelets (x10³/μL)

p = N/A

Clumps

Clumps

Clumps

Clumps

Hemolysis

p = N/A

Clear

Clear

Clear

Clear

MPV (fL)

p = 0.38

6.7 ± 0.1

6.3 ± 0.2

6.7 ± 0.3

6.5 ± 0.2

Post necropsy organ and body weights

     

Brain (g)

p = 0.57

2.03 ± 0.03

2.08 ± 0.04

2.08 ± 0.02

2.04 ± 0.06

Heart (g)

p = 0.88

1.40 ± 0.07

1.37 ± 0.04

1.35 ± 0.04

1.40 ± 0.05

Whole Body (g)

p = 0.69

439 ± 14

422 ± 9

419 ± 2

422 ± 20

  1. Effects of 30 days of daily gavage feeding 1 human equivalent dose (1.1 g/d, ‘low’), 3 human equivalent doses (3.4 g/d, ‘medium’), and 6 human equivalent doses (6.8 g/d, ‘high’) of the WPH-based supplement as well as water only (‘water’) on clinical chemistry serum and whole blood markers.
  2. Abbreviations (definitions): ALT = alanine aminotransferase (liver enzyme); ALP = alkaline phosphatase (liver and bone enzyme); GGT = gamma-glutamyl transpeptidase (liver enzyme); WBC = white blood cells; Seg. Neutro. = segmented neutrophils; RBC = red blood cells; MCV = mean corpuscular volume (measure of RBC size); MCH = mean corpuscular hemoglobin (average hemoglobin per red blood cell); MCHC = mean corpuscular hemoglobin concentration (average hemoglobin concentration per red blood cell); MPV = mean platelet volume (average size of platelets in whole blood).
  3. Note that the ‘low’ condition presented significantly greater MCH content relative to the water and medium conditions (denoted by letter superscripts, p < 0.05).