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Table 2 Saliva Aβ42 levels in patients with neurodegenerative diseases and control subjects

From: Saliva levels of Abeta1-42 as potential biomarker of Alzheimer's disease: a pilot study

Group

Aβ42 (pg/ml)

Aβ40 (pg/ml)

No. of subjects

AD patients

6.81 ± 20.04

22.3 ± 4.88

70

   Mild

7.67 ± 16.25*

21.87 ± 5.7

29

   Moderate

11.70 ± 34.76

21.5 ± 4.17

24

   Severe

3.03 ± 3.49

23.92 ± 4.55

17

PD patients

3.66 ± 4.21

26.41 ± 5.12

51

Control subjects

2.89 ± 4.96

20.82 ± 5.55

56

  1. AD = Alzheimer's disease; PD = Parkinson's disease. Values are mean ± SD. *p < 0.05 versus control subjects