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Table 1 Effects of smoke exposure on estrous cycle and ovarian weight

From: Cigarette smoke impairs granulosa cell proliferation and oocyte growth after exposure cessation in young Swiss mice: an experimental study

Groups No. of cycles Proestrus Estrus Metestrus Diestrus Ovarian weight
Smoking 2.8 ± 0.25 4.3 ± 0.55 8.8 ± 1.1 3.8 ± 0.68 1.7 ± 0.56 16 ± 2.4
C1 2.8 ± 0.36 4.6 ± 0.58 9.3 ± 0.86 4.9 ± 0.89 3.6 ± 0.71 12 ± 2.3
Interval of 30 days
Ex-smoking 7.8 ± 0.97 16 ± 2.9 18 ± 1.4 14 ± 2.9 2.4 ± 1.3 19 ± 4.4
C2 8.2 ± 0.86 13 ± 2.0 21 ± 3.0 11 ± 1.6 4.4 ± 0.68 20 ± 3.2
  1. Number of cycles and duration of estrous stage (days). Ovarian weight is presented as mg/100 g body weight. Smoking: smoke-exposed animals; C1: age-matched controls for smoking animals; Ex-smoking: animals carried on to cigarette smoke-cessation group; C2: age-matched controls for cigarette smoke-cessation mice. Comparison between groups by the Student’s t-test. Values are mean and SEM. No significant differences between smoking vs. C1 or ex-smoking vs C2.