Utilization of High-Density Lipoprotein Sphingomyelin by the Developing and Mature Brain in the Rat
Abstract: Utilization of very long chain saturated fatty acids by brain was studied by injecting 20-day-old and adult rats with high-density lipoprotein containing [stearic or lignoceric acid-14C, (methyl-3H)choline]sphingomyelin. Labeling was followed for 24 h. Very small amounts of 14C were recove...
Ausführliche Beschreibung
Autor*in: |
Bentejac, Marc [verfasserIn] Bugaut, Maurice [verfasserIn] Delachambre, Marie Claire [verfasserIn] |
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E-Artikel |
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Erschienen: |
Oxford, UK: Blackwell Publishing Ltd ; 1989 |
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Online-Ressource |
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Reproduktion: |
2006 ; Blackwell Publishing Journal Backfiles 1879-2005 |
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Übergeordnetes Werk: |
In: Journal of neurochemistry - Oxford : Wiley-Blackwell, 1956, 52(1989), 5, Seite 0 |
Übergeordnetes Werk: |
volume:52 ; year:1989 ; number:5 ; pages:0 |
Links: |
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DOI / URN: |
10.1111/j.1471-4159.1989.tb09199.x |
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10.1111/j.1471-4159.1989.tb09199.x doi (DE-627)NLEJ240275853 DE-627 ger DE-627 rakwb Bentejac, Marc verfasserin aut Utilization of High-Density Lipoprotein Sphingomyelin by the Developing and Mature Brain in the Rat Oxford, UK Blackwell Publishing Ltd 1989 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Abstract: Utilization of very long chain saturated fatty acids by brain was studied by injecting 20-day-old and adult rats with high-density lipoprotein containing [stearic or lignoceric acid-14C, (methyl-3H)choline]sphingomyelin. Labeling was followed for 24 h. Very small amounts of 14C were recovered in the brain of all rats, and there was no preferential uptake of lignoceric acid. Approximately 20% of the entrapped 14C was located in the form of unchanged sphingomyelin 24 h after injection. This result shows that the rat brain utilizes very little very long chain fatty acids (≥20 C atoms) from high-density lipoprotein sphingomyelin, even during the myelinating period. The [3H]choline moiety from sphingomyelin was recovered in brain phosphatidylcholine in a higher proportion in comparison with the 14C uptake. The brain 3H increased throughout the studied period in all experiments, but was much higher in the myelinating brain than in the mature brain. From the radioactivity distribution in liver and plasma lipids, it is clear that the choline 3H in the brain originates from either double-labeled phosphatidylcholine of lipoproteins or tritiated lysophosphatidylcholine bound to albumin, both synthesized by the liver. 2006 Blackwell Publishing Journal Backfiles 1879-2005 |2006|||||||||| Developing brain Bugaut, Maurice verfasserin aut Delachambre, Marie Claire verfasserin aut Lecerf, Jean oth In Journal of neurochemistry Oxford : Wiley-Blackwell, 1956 52(1989), 5, Seite 0 Online-Ressource (DE-627)NLEJ243927584 (DE-600)2020528-4 1471-4159 nnns volume:52 year:1989 number:5 pages:0 http://dx.doi.org/10.1111/j.1471-4159.1989.tb09199.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 52 1989 5 0 |
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10.1111/j.1471-4159.1989.tb09199.x doi (DE-627)NLEJ240275853 DE-627 ger DE-627 rakwb Bentejac, Marc verfasserin aut Utilization of High-Density Lipoprotein Sphingomyelin by the Developing and Mature Brain in the Rat Oxford, UK Blackwell Publishing Ltd 1989 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Abstract: Utilization of very long chain saturated fatty acids by brain was studied by injecting 20-day-old and adult rats with high-density lipoprotein containing [stearic or lignoceric acid-14C, (methyl-3H)choline]sphingomyelin. Labeling was followed for 24 h. Very small amounts of 14C were recovered in the brain of all rats, and there was no preferential uptake of lignoceric acid. Approximately 20% of the entrapped 14C was located in the form of unchanged sphingomyelin 24 h after injection. This result shows that the rat brain utilizes very little very long chain fatty acids (≥20 C atoms) from high-density lipoprotein sphingomyelin, even during the myelinating period. The [3H]choline moiety from sphingomyelin was recovered in brain phosphatidylcholine in a higher proportion in comparison with the 14C uptake. The brain 3H increased throughout the studied period in all experiments, but was much higher in the myelinating brain than in the mature brain. From the radioactivity distribution in liver and plasma lipids, it is clear that the choline 3H in the brain originates from either double-labeled phosphatidylcholine of lipoproteins or tritiated lysophosphatidylcholine bound to albumin, both synthesized by the liver. 2006 Blackwell Publishing Journal Backfiles 1879-2005 |2006|||||||||| Developing brain Bugaut, Maurice verfasserin aut Delachambre, Marie Claire verfasserin aut Lecerf, Jean oth In Journal of neurochemistry Oxford : Wiley-Blackwell, 1956 52(1989), 5, Seite 0 Online-Ressource (DE-627)NLEJ243927584 (DE-600)2020528-4 1471-4159 nnns volume:52 year:1989 number:5 pages:0 http://dx.doi.org/10.1111/j.1471-4159.1989.tb09199.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 52 1989 5 0 |
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10.1111/j.1471-4159.1989.tb09199.x doi (DE-627)NLEJ240275853 DE-627 ger DE-627 rakwb Bentejac, Marc verfasserin aut Utilization of High-Density Lipoprotein Sphingomyelin by the Developing and Mature Brain in the Rat Oxford, UK Blackwell Publishing Ltd 1989 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Abstract: Utilization of very long chain saturated fatty acids by brain was studied by injecting 20-day-old and adult rats with high-density lipoprotein containing [stearic or lignoceric acid-14C, (methyl-3H)choline]sphingomyelin. Labeling was followed for 24 h. Very small amounts of 14C were recovered in the brain of all rats, and there was no preferential uptake of lignoceric acid. Approximately 20% of the entrapped 14C was located in the form of unchanged sphingomyelin 24 h after injection. This result shows that the rat brain utilizes very little very long chain fatty acids (≥20 C atoms) from high-density lipoprotein sphingomyelin, even during the myelinating period. The [3H]choline moiety from sphingomyelin was recovered in brain phosphatidylcholine in a higher proportion in comparison with the 14C uptake. The brain 3H increased throughout the studied period in all experiments, but was much higher in the myelinating brain than in the mature brain. From the radioactivity distribution in liver and plasma lipids, it is clear that the choline 3H in the brain originates from either double-labeled phosphatidylcholine of lipoproteins or tritiated lysophosphatidylcholine bound to albumin, both synthesized by the liver. 2006 Blackwell Publishing Journal Backfiles 1879-2005 |2006|||||||||| Developing brain Bugaut, Maurice verfasserin aut Delachambre, Marie Claire verfasserin aut Lecerf, Jean oth In Journal of neurochemistry Oxford : Wiley-Blackwell, 1956 52(1989), 5, Seite 0 Online-Ressource (DE-627)NLEJ243927584 (DE-600)2020528-4 1471-4159 nnns volume:52 year:1989 number:5 pages:0 http://dx.doi.org/10.1111/j.1471-4159.1989.tb09199.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 52 1989 5 0 |
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10.1111/j.1471-4159.1989.tb09199.x doi (DE-627)NLEJ240275853 DE-627 ger DE-627 rakwb Bentejac, Marc verfasserin aut Utilization of High-Density Lipoprotein Sphingomyelin by the Developing and Mature Brain in the Rat Oxford, UK Blackwell Publishing Ltd 1989 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Abstract: Utilization of very long chain saturated fatty acids by brain was studied by injecting 20-day-old and adult rats with high-density lipoprotein containing [stearic or lignoceric acid-14C, (methyl-3H)choline]sphingomyelin. Labeling was followed for 24 h. Very small amounts of 14C were recovered in the brain of all rats, and there was no preferential uptake of lignoceric acid. Approximately 20% of the entrapped 14C was located in the form of unchanged sphingomyelin 24 h after injection. This result shows that the rat brain utilizes very little very long chain fatty acids (≥20 C atoms) from high-density lipoprotein sphingomyelin, even during the myelinating period. The [3H]choline moiety from sphingomyelin was recovered in brain phosphatidylcholine in a higher proportion in comparison with the 14C uptake. The brain 3H increased throughout the studied period in all experiments, but was much higher in the myelinating brain than in the mature brain. From the radioactivity distribution in liver and plasma lipids, it is clear that the choline 3H in the brain originates from either double-labeled phosphatidylcholine of lipoproteins or tritiated lysophosphatidylcholine bound to albumin, both synthesized by the liver. 2006 Blackwell Publishing Journal Backfiles 1879-2005 |2006|||||||||| Developing brain Bugaut, Maurice verfasserin aut Delachambre, Marie Claire verfasserin aut Lecerf, Jean oth In Journal of neurochemistry Oxford : Wiley-Blackwell, 1956 52(1989), 5, Seite 0 Online-Ressource (DE-627)NLEJ243927584 (DE-600)2020528-4 1471-4159 nnns volume:52 year:1989 number:5 pages:0 http://dx.doi.org/10.1111/j.1471-4159.1989.tb09199.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 52 1989 5 0 |
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10.1111/j.1471-4159.1989.tb09199.x doi (DE-627)NLEJ240275853 DE-627 ger DE-627 rakwb Bentejac, Marc verfasserin aut Utilization of High-Density Lipoprotein Sphingomyelin by the Developing and Mature Brain in the Rat Oxford, UK Blackwell Publishing Ltd 1989 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Abstract: Utilization of very long chain saturated fatty acids by brain was studied by injecting 20-day-old and adult rats with high-density lipoprotein containing [stearic or lignoceric acid-14C, (methyl-3H)choline]sphingomyelin. Labeling was followed for 24 h. Very small amounts of 14C were recovered in the brain of all rats, and there was no preferential uptake of lignoceric acid. Approximately 20% of the entrapped 14C was located in the form of unchanged sphingomyelin 24 h after injection. This result shows that the rat brain utilizes very little very long chain fatty acids (≥20 C atoms) from high-density lipoprotein sphingomyelin, even during the myelinating period. The [3H]choline moiety from sphingomyelin was recovered in brain phosphatidylcholine in a higher proportion in comparison with the 14C uptake. The brain 3H increased throughout the studied period in all experiments, but was much higher in the myelinating brain than in the mature brain. From the radioactivity distribution in liver and plasma lipids, it is clear that the choline 3H in the brain originates from either double-labeled phosphatidylcholine of lipoproteins or tritiated lysophosphatidylcholine bound to albumin, both synthesized by the liver. 2006 Blackwell Publishing Journal Backfiles 1879-2005 |2006|||||||||| Developing brain Bugaut, Maurice verfasserin aut Delachambre, Marie Claire verfasserin aut Lecerf, Jean oth In Journal of neurochemistry Oxford : Wiley-Blackwell, 1956 52(1989), 5, Seite 0 Online-Ressource (DE-627)NLEJ243927584 (DE-600)2020528-4 1471-4159 nnns volume:52 year:1989 number:5 pages:0 http://dx.doi.org/10.1111/j.1471-4159.1989.tb09199.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 52 1989 5 0 |
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Utilization of High-Density Lipoprotein Sphingomyelin by the Developing and Mature Brain in the Rat |
abstract |
Abstract: Utilization of very long chain saturated fatty acids by brain was studied by injecting 20-day-old and adult rats with high-density lipoprotein containing [stearic or lignoceric acid-14C, (methyl-3H)choline]sphingomyelin. Labeling was followed for 24 h. Very small amounts of 14C were recovered in the brain of all rats, and there was no preferential uptake of lignoceric acid. Approximately 20% of the entrapped 14C was located in the form of unchanged sphingomyelin 24 h after injection. This result shows that the rat brain utilizes very little very long chain fatty acids (≥20 C atoms) from high-density lipoprotein sphingomyelin, even during the myelinating period. The [3H]choline moiety from sphingomyelin was recovered in brain phosphatidylcholine in a higher proportion in comparison with the 14C uptake. The brain 3H increased throughout the studied period in all experiments, but was much higher in the myelinating brain than in the mature brain. From the radioactivity distribution in liver and plasma lipids, it is clear that the choline 3H in the brain originates from either double-labeled phosphatidylcholine of lipoproteins or tritiated lysophosphatidylcholine bound to albumin, both synthesized by the liver. |
abstractGer |
Abstract: Utilization of very long chain saturated fatty acids by brain was studied by injecting 20-day-old and adult rats with high-density lipoprotein containing [stearic or lignoceric acid-14C, (methyl-3H)choline]sphingomyelin. Labeling was followed for 24 h. Very small amounts of 14C were recovered in the brain of all rats, and there was no preferential uptake of lignoceric acid. Approximately 20% of the entrapped 14C was located in the form of unchanged sphingomyelin 24 h after injection. This result shows that the rat brain utilizes very little very long chain fatty acids (≥20 C atoms) from high-density lipoprotein sphingomyelin, even during the myelinating period. The [3H]choline moiety from sphingomyelin was recovered in brain phosphatidylcholine in a higher proportion in comparison with the 14C uptake. The brain 3H increased throughout the studied period in all experiments, but was much higher in the myelinating brain than in the mature brain. From the radioactivity distribution in liver and plasma lipids, it is clear that the choline 3H in the brain originates from either double-labeled phosphatidylcholine of lipoproteins or tritiated lysophosphatidylcholine bound to albumin, both synthesized by the liver. |
abstract_unstemmed |
Abstract: Utilization of very long chain saturated fatty acids by brain was studied by injecting 20-day-old and adult rats with high-density lipoprotein containing [stearic or lignoceric acid-14C, (methyl-3H)choline]sphingomyelin. Labeling was followed for 24 h. Very small amounts of 14C were recovered in the brain of all rats, and there was no preferential uptake of lignoceric acid. Approximately 20% of the entrapped 14C was located in the form of unchanged sphingomyelin 24 h after injection. This result shows that the rat brain utilizes very little very long chain fatty acids (≥20 C atoms) from high-density lipoprotein sphingomyelin, even during the myelinating period. The [3H]choline moiety from sphingomyelin was recovered in brain phosphatidylcholine in a higher proportion in comparison with the 14C uptake. The brain 3H increased throughout the studied period in all experiments, but was much higher in the myelinating brain than in the mature brain. From the radioactivity distribution in liver and plasma lipids, it is clear that the choline 3H in the brain originates from either double-labeled phosphatidylcholine of lipoproteins or tritiated lysophosphatidylcholine bound to albumin, both synthesized by the liver. |
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Bugaut, Maurice Delachambre, Marie Claire Lecerf, Jean |
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