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Table 6 Effect of selected pregnancy concurrent events on cytochromes metabolic activity

From: Modulation of CYP2E1 metabolic activity in a cohort of confirmed caffeine ingesting pregnant women with preterm offspring

 

Offspring gender (n = 98)

Pregnancy associated hypertension

Prenatal steroids

Cytochrome metabolic activity

Male

(n = 54)

Female

(n = 44)

p

Exposed

(n = 10)

Unexposed

(n = 80)

p

Exposed

(n = 68)

Unexposed

(n = 22)

p

CYP1A2 a

0.05

(0.02–0.16)

0.09

(0.02–0.26)

NS

0.08

(0.02–0.37)

0.05

(0.01–0.18)

NS

0.04

(0.01–0.11)

0.13

(0.03–0.32)

† 0.03

CYP2E1 b

0.35

(0.02–1.24)

0.45

(0.04–1.24)

NS

1.61

(0.66–1.94)

0.37

(0.02–1.12)

† 0.02

0.46

(0.02–1.79)

0.37

(0.05–0.45)

NS

CYP2E1 c

0.04

(0.02–0.11)

0.09

(0.03–0.21)

† 0.03

0.08

(0.02–0.42)

0.07

(0.02–0.15)

NS

0.05

(0.02–0.15)

0.09

(0.02–0.21)

NS

  1. Values expressed as median (IQR)
  2. †Mann–Whitney’s U test; NS non-significant p value
  3. Metabolic activity:
  4. aParaxanthine/caffeine nanomolar ratio
  5. bTheobromine/caffeine nanomolar ratio
  6. cTheophylline/caffeine nanomolar ratio