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Table 8 Metabolic Markers The average levels measured in the Autism and Neurotypical groups are reported below, along with their standard deviations

From: Nutritional and metabolic status of children with autism vs. neurotypical children, and the association with autism severity

 

Units

Autism Group

Neuro-typical Group

% Difference

p-value

Neurotypical Reference Range (10th and 90th percentiles)

Autism Group % below RR

Autism Group % above RR

Free Sulfate

(plasma)

μmol /

g protein

1.44

+/- 0.51

4.09

+/- 2.28

-65%

< 0.00001 *

1.4-7.5

56%

0%

Total Sulfate

(plasma)

μmol /

g-protein

1121

+/- 212

1566

+/- 384

-28%

< 0.0001 *

987-2070

36%

0%

SAM

(RBC)

μmol/dl

214.5

+/- 15

228.4

+/- 12

-6%

< 0.0001 *

210-242

39%

4%

SAH

(RBC)

μmol/dl

44.6 +/- 8.0

42.6

+/- 4.4

 

n.s.

40-52

27%

24%

SAM/SAH ratio

 

4.9

+/- 1.1

5.4

+/- 0.6

-10%

0.006

4.1-6.0

25%

13%

Uridine

(plasma)

10-6 mol/l

15.3

+/- 7.5

7.9

+/- 2.7

+93%

< 0.00001 *

5.5-10.9

4%

60%

Adenosine

(plasma)

10-8 mol/l

23.2

+/- 5.9

20.6

+/- 3.4

+12%

0.008

17-26

11%

33%

Inosine

(plasma)

10-6 mol/l

3.56

+/- 0.91

3.83

+/- 0.93

 

n.s.

2.7-5.2

16%

5%

Reduced plasma glutathione (GSH)

nmol/ml

3.23

+/- 0.48

4.09

+/- 0.79

-21%

< 0.0001 *

3.1-5.1

53%

0%

Oxidized glutathione (GSSG)

nmol/ml

0.447

+/- 0.13

0.362

+/- 0.10

+24%

0.001 *

0.22-0.52

0%

30%

Ratio of oxidized to reduced plasma glutathione

 

0.14

+/- 0.05

0.093

+/- 0.04

+49%

< 0.0001 *

0.05-0.15

4%

42%

Plasma nitro-tyrosine

μg/l

16.6

+/- 7.8

7.4

+/- 5.1

+125%

< 0.0001 *

3.7-18

0%

44%

  1. The p-value for a t-test comparison of the two groups is also reported. If the p-value is below 0.05, then the % difference between the groups is reported, and the result is highlighted.
  2. The table also lists the reference range of the neurotypical group (10th and 90th percentiles), and the % of the Autism group who are above or below the reference ranges. Note that if the groups were identical, 10% would be above and 10% would be below. Percentages above 25% are highlighted.
  3. * Statistically significant difference between the two groups with 95% confidence per Bonferroni analysis.