Research Article

Smoking-Induced Inhibition of Number and Activity of Endothelial Progenitor Cells and Nitric Oxide in Males Were Reversed by Estradiol in Premenopausal Females

Table 1

Clinical and biochemical characteristics of four groups.

CharacteristicsFemale nonsmokers (n = 20)Female smokers (n = 20)Male nonsmokers (n = 20)Male smokers (n = 20)

Age (years)42.8 ± 3.643.4 ± 3.944.6 ± 3.743.6 ± 3.8
Smoking (pack-years)NA14.8 ± 4.5NA16.6 ± 5.5
Height (cm)162.3 ± 5.7161.9 ± 5.3168.4 ± 4.9#169.6 ± 6.6#
Weight (kg)60.2 ± 5.258.7 ± 5.164.6 ± 6.2#66.4 ± 5.0#
BMI (kg/cm2)22.9 ± 2.322.4 ± 1.822.8 ± 2.223.1 ± 1.5
Systolic blood pressure (mmHg)118.7 ± 10.0121.5 ± 8.9117.3 ± 9.6120.6 ± 9.3
Diastolic blood pressure (mmHg)73.3 ± 6.575.5 ± 7.472.8 ± 6.174.6 ± 7.0
Heart rate (beats/min)73.2 ± 6.372.9 ± 7.874.4 ± 8.071.1 ± 7.7
AST (mmol/L)23.6 ± 5.025.7 ± 6.026.5 ± 5.224.4 ± 5.7
ALT (mmol/L)20.6 ± 4.823.6 ± 7.124.7 ± 5.622.2 ± 5.5
BUN (mmol/L)4.6 ± 0.84.8 ± 0.94.9 ± 0.85.0 ± 0.7
Cr (mmol/L)63.2 ± 13.265.3 ± 15.069.1 ± 14.768.3 ± 15.7
LDL (mmol/L)2.68 ± 0.382.78 ± 0.412.58 ± 0.372.66 ± 0.30
TC (mmol/L)4.65 ± 0.494.77 ± 0.524.48 ± 0.614.61 ± 0.47
HDL (mmol/L)1.39 ± 0.241.35 ± 0.221.41 ± 0.181.43 ± 0.17
TG (mmol/L)1.41 ± 0.201.45 ± 0.201.38 ± 0.181.36 ± 0.16
FPG (mmol/L)4.81 ± 0.544.51 ± 0.504.40 ± 0.414.61 ± 0.53
Estradiol (pmol/L)203.6 ± 20.6198.3 ± 22.9103.5 ± 15.0#95.7 ± 11.0#
FMD (%)9.72 ± 1.738.87 ± 1.678.34 ± 1.59#6.89 ± 1.72#∗

BMI, body mass index; LDL, low-density lipoprotein; TC, total cholesterol; HDL, high density lipoprotein; TG, triglyceride; FPG, fasting plasma glucose; FMD, flow-mediated brachial artery dilatation. Smokers are defined as individuals with smoking ≥10 pack-year. Nonsmokers are defined as individuals who never smoked. Data are given as mean ± SD. vs nonsmokers; #vs premenopausal women.