Carnitine fraction  (µmol/L) Controls Patients P value
F ree carnitine  (C0) 33.54±6.42 15.84±9.70* <0.01
Acetylcarnitine  (C2)  6.65 ± 4.4 3.97 ± 2.59* <0.01
Propionylcarnitine (C3)  0.487 ± 0.16 0.404 ± 0.33 0.088=P
Butyrylcarnitine   (C4)  0.295 ± 0.28 0.313 ± 0.28 P= 0.352
Isovalerylcarnitine  (C5) 0.133 ± 0.19 0.113 ± 0.04* <0.01
Hexanoylcarnitine  (C6) 0.174 ± 0.02 0.140 ± 0.03* <0.01
Octanoylcarnitine  (C8) 0.064 ± 0.03 0.0790 ± 0.03 P= 0.68
Octenoylcarnitine  (C8:1) 0.141 ± 0.07 0.0982 ± 0.08* P= 0.019
Decanoylcarnitine (C10) 0.095 ± 0.05 0.173  ± 0.14 P=0.34
Cecenoylcarnitine (C10:1) 1.082 ± 0.75 0.856 ± 0.22* <0.01
Lauroylcarnitine (C12) 0.180 ± 0.25 0.058 ± 0.02 P= 0.94
Myristoylcarnitine (C14) 0.044 ± 0.02 0.0198 ± 0.03 P= 0.17
Myristoleylcarnitine (C14:1) 0.043 ± 0.02 0.023 ± 0.03* P<0.01
Hydroxymyristoylcarnitine (C14OH) 0.047 ± 0.02 0.0318 ± 0.01* P<0.01
Palmitoylcarnitine (C16) 0.172 ± 0.03 0.111 ± 0.03* P<0.01
Palmitoleylcarnitine (C16:1) 0.015 ± 0.01 0.0227 ± 0.01 P= 0.57
Hydroxypalmitoleylcarnitine(C161OH) 0.011 ± 0.01 0.013 ± 0.013 P=0.56
Oleylcarnitine (C18:1) 0.097 ± 0.03 0.119 ± 0.01 P=0.9
Stearoylcarnitine (C18) 0.148 ± 0.154 0.057 ± 0.02 * P<0.01
Hydroxyoleylcarnitine (C18 OH) 0.058 ± 0.0242 0.061 ± 0.01656 <0.4


Results are expressed as Mean ± SD
*: Significant difference P<0.01
Table 3: Plasma Carnitine esters profile in COPD patients and healthy Controls.