Carnitine in human polymorphonuclear leukocytes, mononuclear cells, and platelets. 1987

K Katrib, and A H Adlouni, and G Férard
Department of Applied Biochemistry, Université Louis Pasteur, Strasbourg, France.

We tried to study the distribution of carnitine in human blood. Total carnitine (free plus acylcarnitine) was determined in red blood cells, polymorphonuclear leukocytes, mononuclear cells, platelets, and plasma from 15 apparently healthy adults. We did not find carnitine in red blood cells but found it in significant amounts in polymorphonuclear leukocytes and mononuclear cells, 52.2 +/- 16.9 and 41.9 +/- 9.3 mumol/10(9) cells (mean +/- 1 SD), respectively. We also found that platelets contain carnitine in small amounts, 49.0 +/- 8.4 nmol/10(9) cells. In plasma the carnitine concentration was 51.5 +/- 3.3 mumol/L. We conclude that blood carnitine is localized mainly in polymorphonuclear leukocytes and mononuclear cells (83% of whole-blood carnitine).

UI MeSH Term Description Entries
D007963 Leukocytes, Mononuclear Mature LYMPHOCYTES and MONOCYTES transported by the blood to the body's extravascular space. They are morphologically distinguishable from mature granulocytic leukocytes by their large, non-lobed nuclei and lack of coarse, heavily stained cytoplasmic granules. Mononuclear Leukocyte,Mononuclear Leukocytes,PBMC Peripheral Blood Mononuclear Cells,Peripheral Blood Human Mononuclear Cells,Peripheral Blood Mononuclear Cell,Peripheral Blood Mononuclear Cells,Leukocyte, Mononuclear
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D009504 Neutrophils Granular leukocytes having a nucleus with three to five lobes connected by slender threads of chromatin, and cytoplasm containing fine inconspicuous granules and stainable by neutral dyes. LE Cells,Leukocytes, Polymorphonuclear,Polymorphonuclear Leukocytes,Polymorphonuclear Neutrophils,Neutrophil Band Cells,Band Cell, Neutrophil,Cell, LE,LE Cell,Leukocyte, Polymorphonuclear,Neutrophil,Neutrophil Band Cell,Neutrophil, Polymorphonuclear,Polymorphonuclear Leukocyte,Polymorphonuclear Neutrophil
D001792 Blood Platelets Non-nucleated disk-shaped cells formed in the megakaryocyte and found in the blood of all mammals. They are mainly involved in blood coagulation. Platelets,Thrombocytes,Blood Platelet,Platelet,Platelet, Blood,Platelets, Blood,Thrombocyte
D002331 Carnitine A constituent of STRIATED MUSCLE and LIVER. It is an amino acid derivative and an essential cofactor for fatty acid metabolism. Bicarnesine,L-Carnitine,Levocarnitine,Vitamin BT,L Carnitine
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults

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