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Table 1 Mean ± SD of the measured chemicals in plasma of patients with autism compared with age-matched controls.a

From: Mechanism of nitrogen metabolism-related parameters and enzyme activities in the pathophysiology of autism

  Group Mean ± SD P value
Cr, nmol/ul Control 0.47 ± 0.06 0.000
  Autistic 0.54 ± 0.06  
NO, nmol/ul Control 0.036 ± 0.00 0.084
  Autistic 0.040 ± 0.01  
GDH, U/l Control 1.58 ± 0.87 0.311
  Autistic 1.28 ± 0.93  
ADA, U/l Control 20.47 ± 11.90 0.048
  Autistic 14.56 ± 4.39  
5'-NT, U/l Control 9.31 ± 1.82 0.001
  Autistic 10.97 ± 0.87  
NH3, mg/dl Control 1.19 ± 0.46 0.230
  Autistic 1.43 ± 0.71  
Urea, mmol/l Control 5.03 ± 0.96 0.382
  Autistic 4.66 ± 1.62  
GABA, ng/ml Control 55.29 ± 4.15 0.023
  Autistic 79.09 ± 16.77  
Glu, μmol/l Control 111.9 ± 4.63 0.001
  Autistic 152.8 ± 16.77  
Gln, μmol/l Control 241.82 ± 13.29 0.001
  Autistic 111.34 ± 5.69  
Glu:Gln Control 0.46 ± 0.03 0.001
  Autistic 1.37 ± 0.06  
  1. aAbbreviations: 5'-NT, 5'-nucleotidase; ADA, adenosine deaminase; Cr, creatine; GABA, gamma-aminobutyric acid; GDH, glutamate dehydrogenase; Gln, glutamine; Glu, glutamate; NH3, ammonia; NO, nitric oxide.