Vitic J, Stevanovic J. Comparative studies of the serum lipoproteins and lipids in some domestic, laboratory and wild animals. Comp Biochem Physiol 1993;106B:223–229.
Asadi F, Mohri M, Adibmoradi M, et al. Serum lipid and lipoprotein parameters of Turkman horses. Vet Clin Pathol 2006;35:332–334.
Mills GL, Taylaur CE. The distribution and composition of serum lipoproteins in eighteen animals. Comp Biochem Physiol 1971;40B:489–501.
Leat WMF, Northrop CA, Buttress N, et al. Plasma lipids and lipoproteins of some members of the order perissodactyla. Comp Biochem Physiol 1979;63B:275–281.
Chapman MJ. Animal lipoproteins: chemistry, structure and comparative aspects. J Lipid Res 1980;21:789–853.
Nazifi S, Gheisari HR, Abbasali Poorkabir M, et al. Serum lipids and lipoproteins in clinically healthy male camels (Camelus dromedarius). Vet Res Commun 2000;24:527–531.
Puppione DL, Kunitake ST, Hamilton RL, et al. Characterization of unusual intermediate density lipoproteins. J Lipid Res 1982;23:283–290.
Terpstra AHM, Sanshez-Muniz FJ, West CE, et al. The density profile and cholesterol concentration of serum lipoproteins in domestic and laboratory animals. Comp Biochem Physiol 1982;71B:669–763.
Chapman MJ, Goldstein S, Lagrange D, et al. A density gradient ultracentrifugal procedure for the isolation of major lipoprotein classes for human serum. J Lipid Res 1981;22:339–358.
Bulliet RW. Middle East. In: Bulliet RW, ed. The camel and the wheel. Cambridge, Mass: Harvard University Press, 1975;56.
Wasfi IA, Hafez AM, Tayeb FM, et al. Thyroid hormones, cholesterol and triglyceride levels in the camel. Res Vet Sci 1987;42:418.
Al-Ani FK, Al-Azzawi WARA, Jermukly MS, et al. Studies on some hematological parameters of camel and llama in Iraq. Bull Anim Health Prod Afr 1992;40:103–106.
Guyard-Dangremont V, Desrumaux C, Gambert P, et al. Phospholipid and cholesteryl ester transfer activities in plasma from 14 vertebrate species. Relation to atherogenesis susceptibility. Comp Biochem Physiol 1998;120B:517–525.
Pazak HE, Bartges JW, Cornelius LC, et al. Characterization of serum lipoprotein profiles of healthy, adult cats and idiopathic feline hepatic lipidosis patients. J Nutr 1998;128:2747S–2750S.
Dimitrov NV, Leece CM, Tompkins ER, et al. Oltipraz concentrations in plasma buccal mucosa cells and lipids: pharmacological studies. Cancer Epidemiol Biomarkers Prev 2001;10:201–207.
Fernando-Warnakulasuriya GJP, Clark WA, Wells MA. Lipoprotein metabolism in the suckling rat: characterization of plasma and lymphatic lipoproteins. J Lipid Res 1983;24:1626–1638.
Naito HK, Wada M, Ehrhart LA, et al. Polyacrylamide gel disk electrophoresis as a screening procedure for serum lipoprotein abnormalities. Clin Chem 1973;19:228–234.
Bligh EG, Dyer WJ. A rapid method for total lipid extraction and purification. Can J Biochem Physiol 1959;37:911–918.
Bowman RE, Wolf RC. A rapid and specific ultramicro method for total serum cholesterol. Clin Chem 1962;8:302–309.
Neri BP, Frings CS. Improved method for determination of triglyceride in serum. Clin Chem 1973;19:1201–1203.
Rouser G, Fkeischer S, Yamamoto A. Two-dimensional thin layer chromatographic separation of polar lipids and determination of phospholipids by phosphorous analysis of spots. Lipids 1970;5:494–496.
Noble RP. Electrophoretic separation of plasma lipoproteins in agarose gel. J Lipid Res 1968;9:693–700.
Rifai N, Bachorik PS, Albers JJ. Lipids, lipoproteins and apolipoproteins. In: Burtis CA, Ashwood ER, eds. Tietz textbook of clinical chemistry. 3rd ed. WB Saunders Co, 1999;837–852.
Bausserman LL, Saritelli AL, Milosavljevic D. High density lipoprotein subfractions measured in stored serum. Clin Chem 1994;40:1713–1716.
Nelson CA, Tasch MA, Tikkanen M, et al. Evolution of low density lipoprotein structure probed with monoclonal antibodies. J Lipid Res 1984;25:821–830.
Demacker PNM, Hijmans AGM, van Sommeren-Zondag DF, et al. Stability of frozen liquid control sera for assay of cholesterol in high density lipoprotein. Clin Chem 1982;28:155–157.
Chung BH, Segrest JP, Cone JT, et al. High resolution plasma lipoprotein cholesterol profiles by a rapid, high volume semiautomated method. J Lipid Res 1981;22:1003–1014.
Levy RI. Cholesterol, lipoproteins, apoproteins and heart disease: present status and future aspects. Clin Chem 1981;27:653–662.
Kawakami K, Tsukada A, Okubo M, et al. A rapid electrophoretic method for the detection of serum Lp(a) lipoprotein. Clin Chim Acta 1989;185:147–155.
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Objective—To determine the lipid composition and electrophoretic pattern of plasma lipoproteins in samples obtained from healthy 1-humped camels (Camelus dromedarius).
Animals—34 healthy camels raised under similar farming and dietary conditions.
Procedures—Plasma samples were subjected to density-gradient ultracentrifugation for separation of plasma lipoproteins, including very-low-density lipoproteins (VLDL), low-density lipoproteins (LDL), and high-density lipoproteins (HDL). Purity of the separation was assessed by use of polyacrylamide gel disk electrophoresis. Concentrations of triglycerides, cholesterol, and phospholipids were measured in each lipoprotein fraction, and lipoprotein electrophoretic patterns were determined in plasma samples.
Results—Phospholipid was the major constituent of VLDL (mean ± SD concentration, 10.62 ± 1.2 mg/dL), LDL (24.66 ± 3.12 mg/dL), and HDL (38.08 ± 0.76 mg/dL). Low-density lipoprotein, VLDL, and HDL were important plasma lipoprotein carriers for cholesterol (67.94 ± 9.51%), triglyceride (55.83 ± 7.81%), and phospholipid (51.91 ± 1.55%), respectively. On the basis of electrophoresis results, relative percentages of α- and β-lipoproteins were 31.72 ± 4.88% and 68.3 ± 4.68%, respectively.
Conclusions and Clinical Relevance—The lipoprotein profile in 1-humped camels differed substantially from that of other ruminants. Results may be useful in the evaluation of metabolic disorders in camels.
The authors thank Dr. A. Golestani for providing technical equipment and H. Boshehri, F. Jadidizadeh, A. Naderloo, and Dr. Karen Lee for technical assistance.