Lipid composition and lipogenic activities in the livers of normo- and hereditary hyperlipidemic chickens
| Autor: | B.H. Simon Cho |
|---|---|
| Rok vydání: | 1983 |
| Předmět: |
Male
medicine.medical_specialty Physiology Oviposition Lipid composition Phospholipid Mevalonic Acid Hyperlipidemias Acetates Biology Biochemistry chemistry.chemical_compound Internal medicine medicine Animals Molecular Biology Incubation Phospholipids Triglycerides Triglyceride Substrate (chemistry) Lipid metabolism General Medicine Metabolism Saponins Lipid Metabolism Cholesterol Endocrinology Liver chemistry Cholesteryl ester Female lipids (amino acids peptides and proteins) Cholesterol Esters Chickens |
| Zdroj: | Comparative Biochemistry and Physiology Part B: Comparative Biochemistry. 76:331-334 |
| ISSN: | 0305-0491 |
| DOI: | 10.1016/0305-0491(83)90078-0 |
| Popis: | 1. 1. Lipid content of the liver and its lipogenic activities were compared among year-old laying hens and hereditary non-layers and roosters fed a low-fat and cholesterol-free grain diet. 2. 2. In contents of free cholesterol, cholesteryl ester and phospholipid, the differences between groups were relatively minor, but striking differences were noted in triglyceride with a marked accumulation in non-layers. 3. 3. Incorporation studies of [ 14 C]acetate and [ 14 C]mevalonate by liver slices revealed that in layers, acetate was preferentially incorporated into saponifiable lipids (SF), whereas mevalonate incorporated actively into both saponifiable and non-saponifiable (NSF) lipids. 4. 4. Lipid synthesis with acetate and mevalonate was extremely low in non-layers; in roosters, utilization of acetate was very poor but mevalonate was actively incorporated into SF and NSF lipids. 5. 5. During incubation of tissue slices, acetate was extensively oxidized to CO 2 , whereas mevalonate was poorly oxidized in all chickens. The level of substrate oxidation was similar between layers and roosters, but their level of oxidation was much greater than that of non-layers. |
| Databáze: | OpenAIRE |
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