Dietary Tryptophan Supplementation Alters Fat and Glucose Metabolism in a Low-Birthweight Piglet Model
Low birthweight (LBW) is associated with metabolic complications, such as glucose and lipid metabolism disturbances in early life. The objective of this study was to assess: (1) the effect of dietary tryptophan (Trp) on glucose and fat metabolism in an LBW piglet model, and (2) the role peripheral 5...
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MDPI AG
2021-07-01
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| Series: | Nutrients |
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| Online Access: | https://www.mdpi.com/2072-6643/13/8/2561 |
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| author | Parniyan Goodarzi Mohammad Habibi Kennedy Roberts Julia Sutton Cedrick Ndhumba Shili Dingbo Lin Adel Pezeshki |
| author_facet | Parniyan Goodarzi Mohammad Habibi Kennedy Roberts Julia Sutton Cedrick Ndhumba Shili Dingbo Lin Adel Pezeshki |
| author_sort | Parniyan Goodarzi |
| collection | DOAJ |
| description | Low birthweight (LBW) is associated with metabolic complications, such as glucose and lipid metabolism disturbances in early life. The objective of this study was to assess: (1) the effect of dietary tryptophan (Trp) on glucose and fat metabolism in an LBW piglet model, and (2) the role peripheral 5-hydroxytryptamine type 3 (5HT3) receptors in regulating the feeding behavior in LBW piglets fed with Trp-supplemented diets. Seven-day-old piglets were assigned to 4 treatments: normal birthweight-0%Trp (NBW-T0), LBW-0%Trp (LBW-T0), LBW-0.4%Trp (LBW-T0.4), and LBW-0.8%Trp (LBW-T0.8) for 3 weeks. Compared to LBW-T0, the blood glucose was decreased in LBW-T0.8 at 60 min following the meal test, and the triglycerides were lower in LBW-T0.4 and LBW-T0.8. Relative to LBW-T0, LBW-T0.8 had a lower transcript and protein abundance of hepatic glucose transporter-2, a higher mRNA abundance of glucokinase, and a lower transcript of phosphoenolpyruvate carboxykinase. LBW-T0.4 tended to have a lower protein abundance of sodium-glucose co-transporter 1 in the jejunum. In comparison with LBW-T0, LBW-T0.4 and LBW-T0.8 had a lower transcript of hepatic acetyl-CoA carboxylase, and LBW-T0.4 had a higher transcript of 3-hydroxyacyl-CoA dehydrogenase. Blocking 5-HT3 receptors with ondansetron reduced the feed intake in all groups, with a transient effect on LBW-T0, but more persistent effect on LBW-T0.8 and NBW-T0. In conclusion, Trp supplementation reduced the hepatic lipogenesis and gluconeogenesis, but increased the glycolysis in LBW piglets. Peripheral serotonin is likely involved in the regulation of feeding behavior, particularly in LBW piglets fed diets supplemented with a higher dose of Trp. |
| first_indexed | 2024-03-10T08:31:05Z |
| format | Article |
| id | doaj.art-469d69a93aab4d33a18a96e7b330f8b9 |
| institution | Directory Open Access Journal |
| issn | 2072-6643 |
| language | English |
| last_indexed | 2024-03-10T08:31:05Z |
| publishDate | 2021-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nutrients |
| spelling | doaj.art-469d69a93aab4d33a18a96e7b330f8b92023-11-22T09:02:33ZengMDPI AGNutrients2072-66432021-07-01138256110.3390/nu13082561Dietary Tryptophan Supplementation Alters Fat and Glucose Metabolism in a Low-Birthweight Piglet ModelParniyan Goodarzi0Mohammad Habibi1Kennedy Roberts2Julia Sutton3Cedrick Ndhumba Shili4Dingbo Lin5Adel Pezeshki6Department of Animal and Food Sciences, Oklahoma State University, Stillwater, OK 74078, USADepartment of Animal and Food Sciences, Oklahoma State University, Stillwater, OK 74078, USADepartment of Animal and Food Sciences, Oklahoma State University, Stillwater, OK 74078, USADepartment of Animal and Food Sciences, Oklahoma State University, Stillwater, OK 74078, USADepartment of Animal and Food Sciences, Oklahoma State University, Stillwater, OK 74078, USADepartment of Nutritional Sciences, Oklahoma State University, Stillwater, OK 74078, USADepartment of Animal and Food Sciences, Oklahoma State University, Stillwater, OK 74078, USALow birthweight (LBW) is associated with metabolic complications, such as glucose and lipid metabolism disturbances in early life. The objective of this study was to assess: (1) the effect of dietary tryptophan (Trp) on glucose and fat metabolism in an LBW piglet model, and (2) the role peripheral 5-hydroxytryptamine type 3 (5HT3) receptors in regulating the feeding behavior in LBW piglets fed with Trp-supplemented diets. Seven-day-old piglets were assigned to 4 treatments: normal birthweight-0%Trp (NBW-T0), LBW-0%Trp (LBW-T0), LBW-0.4%Trp (LBW-T0.4), and LBW-0.8%Trp (LBW-T0.8) for 3 weeks. Compared to LBW-T0, the blood glucose was decreased in LBW-T0.8 at 60 min following the meal test, and the triglycerides were lower in LBW-T0.4 and LBW-T0.8. Relative to LBW-T0, LBW-T0.8 had a lower transcript and protein abundance of hepatic glucose transporter-2, a higher mRNA abundance of glucokinase, and a lower transcript of phosphoenolpyruvate carboxykinase. LBW-T0.4 tended to have a lower protein abundance of sodium-glucose co-transporter 1 in the jejunum. In comparison with LBW-T0, LBW-T0.4 and LBW-T0.8 had a lower transcript of hepatic acetyl-CoA carboxylase, and LBW-T0.4 had a higher transcript of 3-hydroxyacyl-CoA dehydrogenase. Blocking 5-HT3 receptors with ondansetron reduced the feed intake in all groups, with a transient effect on LBW-T0, but more persistent effect on LBW-T0.8 and NBW-T0. In conclusion, Trp supplementation reduced the hepatic lipogenesis and gluconeogenesis, but increased the glycolysis in LBW piglets. Peripheral serotonin is likely involved in the regulation of feeding behavior, particularly in LBW piglets fed diets supplemented with a higher dose of Trp.https://www.mdpi.com/2072-6643/13/8/2561tryptophanglucose and fat metabolism5-HT3 receptorslow birthweightpiglet |
| spellingShingle | Parniyan Goodarzi Mohammad Habibi Kennedy Roberts Julia Sutton Cedrick Ndhumba Shili Dingbo Lin Adel Pezeshki Dietary Tryptophan Supplementation Alters Fat and Glucose Metabolism in a Low-Birthweight Piglet Model Nutrients tryptophan glucose and fat metabolism 5-HT3 receptors low birthweight piglet |
| title | Dietary Tryptophan Supplementation Alters Fat and Glucose Metabolism in a Low-Birthweight Piglet Model |
| title_full | Dietary Tryptophan Supplementation Alters Fat and Glucose Metabolism in a Low-Birthweight Piglet Model |
| title_fullStr | Dietary Tryptophan Supplementation Alters Fat and Glucose Metabolism in a Low-Birthweight Piglet Model |
| title_full_unstemmed | Dietary Tryptophan Supplementation Alters Fat and Glucose Metabolism in a Low-Birthweight Piglet Model |
| title_short | Dietary Tryptophan Supplementation Alters Fat and Glucose Metabolism in a Low-Birthweight Piglet Model |
| title_sort | dietary tryptophan supplementation alters fat and glucose metabolism in a low birthweight piglet model |
| topic | tryptophan glucose and fat metabolism 5-HT3 receptors low birthweight piglet |
| url | https://www.mdpi.com/2072-6643/13/8/2561 |
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