Abstract
Capsinoids are non-pungent capsaicin analogs which increase energy expenditure like capsaicin. However, the mechanisms underlying the enhancement of their energy expenditure despite their non-pungency are poorly understood. We suggest here that capsinoids increase energy expenditure in wild-type mice, but not in transient receptor potential vanilloid 1 (TRPV1) knockout mice, implying that capsinoids increase energy expenditure via TRPV1. The jejunal administration of capsinoids to anesthetized mice raised the temperature of the colon and intrascapular brown adipose tissue. Denervation of the extrinsic nerves connected to the jejunum inhibited this temperature elevation. These findings suggest that capsinoids increase energy expenditure by activating the intestinal extrinsic nerves. Although the jejunal administration of capsinoids did not raise the tail skin temperature, an intravenous injection of capsinoids did, indicating that capsinoids could barely pass through the intestinal wall into the blood. Taken together, gastrointestinal TRPV1 may be a critical target for capsinoids to enhance energy expenditure.
| Original language | English |
|---|---|
| Pages (from-to) | 2690-2697 |
| Number of pages | 8 |
| Journal | Bioscience, Biotechnology and Biochemistry |
| Volume | 73 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - Dec 1 2009 |
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All Science Journal Classification (ASJC) codes
- Biotechnology
- Analytical Chemistry
- Biochemistry
- Applied Microbiology and Biotechnology
- Molecular Biology
- Organic Chemistry
Cite this
Non-pungent capsaicin analogs (capsinoids) increase metabolic rate and enhance thermogenesis via gastrointestinal TRPV1 in mice. / Kawabata, Fuminori; Inoue, Naohiko; Masamoto, Yukiko; Matsumura, Shigenobu; Kimura, Wakako; Kadowaki, Makoto; Higashi, Tomohiro; Tominaga, Makoto; Inoue, Kazuo; Fushiki, Tohru.
In: Bioscience, Biotechnology and Biochemistry, Vol. 73, No. 12, 01.12.2009, p. 2690-2697.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Non-pungent capsaicin analogs (capsinoids) increase metabolic rate and enhance thermogenesis via gastrointestinal TRPV1 in mice
AU - Kawabata, Fuminori
AU - Inoue, Naohiko
AU - Masamoto, Yukiko
AU - Matsumura, Shigenobu
AU - Kimura, Wakako
AU - Kadowaki, Makoto
AU - Higashi, Tomohiro
AU - Tominaga, Makoto
AU - Inoue, Kazuo
AU - Fushiki, Tohru
PY - 2009/12/1
Y1 - 2009/12/1
N2 - Capsinoids are non-pungent capsaicin analogs which increase energy expenditure like capsaicin. However, the mechanisms underlying the enhancement of their energy expenditure despite their non-pungency are poorly understood. We suggest here that capsinoids increase energy expenditure in wild-type mice, but not in transient receptor potential vanilloid 1 (TRPV1) knockout mice, implying that capsinoids increase energy expenditure via TRPV1. The jejunal administration of capsinoids to anesthetized mice raised the temperature of the colon and intrascapular brown adipose tissue. Denervation of the extrinsic nerves connected to the jejunum inhibited this temperature elevation. These findings suggest that capsinoids increase energy expenditure by activating the intestinal extrinsic nerves. Although the jejunal administration of capsinoids did not raise the tail skin temperature, an intravenous injection of capsinoids did, indicating that capsinoids could barely pass through the intestinal wall into the blood. Taken together, gastrointestinal TRPV1 may be a critical target for capsinoids to enhance energy expenditure.
AB - Capsinoids are non-pungent capsaicin analogs which increase energy expenditure like capsaicin. However, the mechanisms underlying the enhancement of their energy expenditure despite their non-pungency are poorly understood. We suggest here that capsinoids increase energy expenditure in wild-type mice, but not in transient receptor potential vanilloid 1 (TRPV1) knockout mice, implying that capsinoids increase energy expenditure via TRPV1. The jejunal administration of capsinoids to anesthetized mice raised the temperature of the colon and intrascapular brown adipose tissue. Denervation of the extrinsic nerves connected to the jejunum inhibited this temperature elevation. These findings suggest that capsinoids increase energy expenditure by activating the intestinal extrinsic nerves. Although the jejunal administration of capsinoids did not raise the tail skin temperature, an intravenous injection of capsinoids did, indicating that capsinoids could barely pass through the intestinal wall into the blood. Taken together, gastrointestinal TRPV1 may be a critical target for capsinoids to enhance energy expenditure.
UR - http://www.scopus.com/inward/record.url?scp=74349091894&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=74349091894&partnerID=8YFLogxK
U2 - 10.1271/bbb.90555
DO - 10.1271/bbb.90555
M3 - Article
C2 - 19966466
AN - SCOPUS:74349091894
VL - 73
SP - 2690
EP - 2697
JO - Bioscience, Biotechnology and Biochemistry
JF - Bioscience, Biotechnology and Biochemistry
SN - 0916-8451
IS - 12
ER -