Yam contributes to improvement of glucose metabolism in rats.
To investigate whether yam improves glucose metabolism, yam-containing diets were given to Wistar rats. In a short-term experiment, fasted-rats were given 1.0 g of a control and 20% yam-containing diets. At 60 min after start of the feeding, glucose level in the yam diet group was lower or tended to...
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English English |
| Published: |
Springer Netherlands
2009
|
| Subjects: | |
| Online Access: | http://psasir.upm.edu.my/id/eprint/17668/ http://psasir.upm.edu.my/id/eprint/17668/1/Yam%20contributes%20to%20improvement%20of%20glucose%20metabolism%20in%20rats.pdf |
| _version_ | 1848843305341681664 |
|---|---|
| author | Hashimoto, Naoto Noda, Takahiro Kim, Sun Ju Sarker, Md. Zaidul Islam Yamauchi, Hiroaki Takigawa, Shigenobu Matsuura Endo, Chie Suzuki, Tatsuro Han, Kyu Ho Fukushima, Michihiro |
| author_facet | Hashimoto, Naoto Noda, Takahiro Kim, Sun Ju Sarker, Md. Zaidul Islam Yamauchi, Hiroaki Takigawa, Shigenobu Matsuura Endo, Chie Suzuki, Tatsuro Han, Kyu Ho Fukushima, Michihiro |
| author_sort | Hashimoto, Naoto |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | To investigate whether yam improves glucose metabolism, yam-containing diets were given to Wistar rats. In a short-term experiment, fasted-rats were given 1.0 g of a control and 20% yam-containing diets. At 60 min after start of the feeding, glucose level in the yam diet group was lower or tended to be lower than that in the control diet. Insulin levels at 30 min and 60 min were significantly lower than those in the control group. In a long-term experiment, a normal diet (N) or 25% high fat diets with (Y) or without 15% yam powder (HF) were given to rats for 4 weeks. At 4 weeks, in an oral glucose tolerance test, the area under the curve (AUC) of plasma glucose level was higher in the HF group than that in the N group, whereas those in the Y groups did not differ from that in the N group. Glycosylated hemoglobin levels had similar tendency to the AUCs. Plasma leptin levels in the Y groups were significantly higher than that in the N group. In conclusion, yam may contribute to improvement of glucose metabolism. Additionally, we speculated that leptin level is possibly involved in the insulin-response to yam diets. |
| first_indexed | 2025-11-15T08:12:55Z |
| format | Article |
| id | upm-17668 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T08:12:55Z |
| publishDate | 2009 |
| publisher | Springer Netherlands |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-176682015-09-16T23:45:47Z http://psasir.upm.edu.my/id/eprint/17668/ Yam contributes to improvement of glucose metabolism in rats. Hashimoto, Naoto Noda, Takahiro Kim, Sun Ju Sarker, Md. Zaidul Islam Yamauchi, Hiroaki Takigawa, Shigenobu Matsuura Endo, Chie Suzuki, Tatsuro Han, Kyu Ho Fukushima, Michihiro To investigate whether yam improves glucose metabolism, yam-containing diets were given to Wistar rats. In a short-term experiment, fasted-rats were given 1.0 g of a control and 20% yam-containing diets. At 60 min after start of the feeding, glucose level in the yam diet group was lower or tended to be lower than that in the control diet. Insulin levels at 30 min and 60 min were significantly lower than those in the control group. In a long-term experiment, a normal diet (N) or 25% high fat diets with (Y) or without 15% yam powder (HF) were given to rats for 4 weeks. At 4 weeks, in an oral glucose tolerance test, the area under the curve (AUC) of plasma glucose level was higher in the HF group than that in the N group, whereas those in the Y groups did not differ from that in the N group. Glycosylated hemoglobin levels had similar tendency to the AUCs. Plasma leptin levels in the Y groups were significantly higher than that in the N group. In conclusion, yam may contribute to improvement of glucose metabolism. Additionally, we speculated that leptin level is possibly involved in the insulin-response to yam diets. Springer Netherlands 2009 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/17668/1/Yam%20contributes%20to%20improvement%20of%20glucose%20metabolism%20in%20rats.pdf Hashimoto, Naoto and Noda, Takahiro and Kim, Sun Ju and Sarker, Md. Zaidul Islam and Yamauchi, Hiroaki and Takigawa, Shigenobu and Matsuura Endo, Chie and Suzuki, Tatsuro and Han, Kyu Ho and Fukushima, Michihiro (2009) Yam contributes to improvement of glucose metabolism in rats. Plant Foods for Human Nutrition, 64 (3). pp. 193-198. ISSN 0921-9668 Yams Diet 10.1007/s11130-009-0126-z English |
| spellingShingle | Yams Diet Hashimoto, Naoto Noda, Takahiro Kim, Sun Ju Sarker, Md. Zaidul Islam Yamauchi, Hiroaki Takigawa, Shigenobu Matsuura Endo, Chie Suzuki, Tatsuro Han, Kyu Ho Fukushima, Michihiro Yam contributes to improvement of glucose metabolism in rats. |
| title | Yam contributes to improvement of glucose metabolism in rats. |
| title_full | Yam contributes to improvement of glucose metabolism in rats. |
| title_fullStr | Yam contributes to improvement of glucose metabolism in rats. |
| title_full_unstemmed | Yam contributes to improvement of glucose metabolism in rats. |
| title_short | Yam contributes to improvement of glucose metabolism in rats. |
| title_sort | yam contributes to improvement of glucose metabolism in rats. |
| topic | Yams Diet |
| url | http://psasir.upm.edu.my/id/eprint/17668/ http://psasir.upm.edu.my/id/eprint/17668/ http://psasir.upm.edu.my/id/eprint/17668/1/Yam%20contributes%20to%20improvement%20of%20glucose%20metabolism%20in%20rats.pdf |