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Table 4 Baseline levels of plasma proteins implicated in iron and heme metabolism in CN individuals remaining stable and individuals showing progression to cognitive impairment (AIBL cohort)

From: Plasma transferrin and hemopexin are associated with altered Aβ uptake and cognitive decline in Alzheimer’s disease pathology

Plasma proteins

Units

Stable

Progression

p value

Ceruloplasmin

Mean (s.d.)

0.001 (0.006)

0.001 (0.014)

0.867

Transferrin

Mean (s.d.)

0.003 (0.008)

0.007 (0.019)

0.794

Haptoglobin

Mean (s.d.)

0.005 (0.01)

0.025 (0.024)

0.458

Haptoglobin-related protein

Mean (s.d.)

0.003 (0.011)

0.036 (0.025)

0.216

Hemopexin

Mean (s.d.)

0.000 (0.010)

− 0.012 (0.022)

0.844

Hemoglobin alpha 1 subunit

Mean (s.d.)

− 0.014 (0.016)

0.042 (0.036)

0.067

Hemoglobin beta subunit

Mean (s.d.)

− 0.024 (0.016)

0.015 (0.037)

0.263

Hemoglobin delta subunit

Mean (s.d.)

− 0.020 (0.016)

0.024 (0.037)

0.204

CD163

Mean (s.d.)

0.009 (0.015)

− 0.012 (0.035)

0.465

LRP1

Mean (s.d.)

0.007 (0.026)

0.028 (0.060)

0.901

  1. ANCOVA models adjusted for age, sex, and APOEε4 genotype. The mean and standard deviation (s.d.) are presented in the table with false discovery rate correction set at 5%
  2. Units of measurement = a.u