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Table 4 Study results for urinary metabolite analyses

From: A systematic review of metabolomic dysregulation in Chronic Fatigue Syndrome/Myalgic Encephalomyelitis/Systemic Exertion Intolerance Disease (CFS/ME/SEID)

Author

Number of metabolites

Urinary metabolite

Assessed

Significantly different in CFS/ME/SEID vs HC

Decreased in CFS/ME/SEID vs HC (p-value)

Increased in CFS/ME/SEID vs HC (p-value)

Armstrong et al. [26]

30

5

Acetate (0.003)

Alanine (0.049)

Formate (0.002)

Pyruvate (0.034)

Serine (0.034)

None

Jones et al. [27]

26

6

Beta-alanine (< 0.05)

Hydroxyproline (< 0.001)

Histidine (< 0.05)

Methionine (< 0.01)

Cystine (< 0.01)

Phenylalanine (< 0.01)

None

McGregor et al. [28]

28

8

CFSUM2 (< 0.001)

Alanine (< 0.005)

Glutamic acid (< 0.02)

Aminohydroxy-N-methylpyrrolidine (< 0.001)

Tyrosine (0.02)

Beta-Alanine (< 0.02)

Succinic acid (< 0.05)

Aconitic acid (< 0.05)