Smoking is Associated with Reduced Leptin and Neuropeptide Y Levels and Higher Pain Experience in Patients with Fibromyalgia
Table 2
Levels of adipokines and IGF-1 in the blood and cerebrospinal fluid of smokers and nonsmokers.
Current smokers Blood, CSF,
Nonsmokers Blood, CSF,
Ex-smokers Blood, CSF,
Leptin, ng/mL md [IQR]
Blood
19.4 [11.7–28.7]££
28.8 [16.4–48.0]
36.8 [28.0–55.7]
CSF
104 [91–151]
165 [114–225]
178 [104–244]
Resistin, ng/mL md [IQR]
Blood
14.0 [12.2–17.9]
14.6 [13.2–17.2]
16.5 [14.0–23.8]
CSF
18.7 [11.7–32.5]
0.0 [0.0-0.0]
24.3 [0.0–32.7]
Adiponectin, g/mL md [IQR]
Blood
4.6 [3.7–14.2]
4.8 [3.0–7.3]
4.9 [2.7–9.3]
CSF
0.97 [0.75–1.25]
0.77 [0.64–0.96]
0.86 [0.71–1.03]
Visfatin, ng/mL md [IQR]
Blood
1.32 [1.11–1.65]*
1.91 [1.34–2.94]
1.33 [1.17–1.72]
CSF
below det. limit
below det. limit
below det. limit
IGF-1, ng/mL md [IQR]
Blood
2.7 [2.0–4.3]*
4.8 [4.1–8.8]$$
2.5 [1.6–4.2]
CSF
below det. limit
below det. limit
below det. limit
NPY, pg/mL md [IQR]
Blood
117 [95.9–139]
86.3 [78.5–115]
142 [85.6–180]
CSF
36.5 [23.3–49.6]
24.5 [16.0–36.9]
29.5 [16.8–36.3]
Substance P, pg/mL md [IQR]
Blood
8.4 [4.3–17.4]
22.0 [9.4–30.8]
16.0 [4.3–46.0]
CSF
6.3 [2.3–8.8]
5.1 [2.2–6.9]
3.2 [1.0–5.8]
IGF-1, insulin-like growth factor 1. Median, interquartile range, and values (Kruskal-Wallis with Dunn’s post hoc) are indicated.
*Current smokers versus non-smokers , $$non-smokers versus ex smokers, , ££current smokers versus ex smokers .