Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
2010-7-27
pubmed:abstractText
The physiological implication of C-type natriuretic peptide (CNP) including energy metabolism has not been elucidated, because of markedly short stature in CNP-null mice. In the present study we analyzed food intake and energy expenditure of CNP-null mice with chondrocyte-targeted CNP expression (CNP-Tg/Nppc(-/-) mice), in which marked skeletal dysplasia was rescued, to investigate the significance of CNP under minimal influences of skeletal phenotypes. In CNP-Tg/Nppc(-/-) mice, body weight and body fat ratio were reduced by 24% and 32%, respectively, at 20 wk of age, and decreases of blood glucose levels during insulin tolerance tests were 2-fold exaggerated at 17 wk of age, as compared with CNP-Tg/Nppc(+/+) mice. Urinary noradrenalin excretion of CNP-Tg/Nppc(-/-) mice was greater than that of CNP-Tg/Nppc(+/+) mice by 28%. In CNP-Tg/Nppc(-/-) mice, rectal temperature at 1600 h was higher by 1.1 C, and uncoupling protein-1 mRNA expression in the brown adipose tissue was 2-fold increased, which was canceled by propranolol administration, as compared with CNP-Tg/Nppc(+/+) mice. Oxygen consumption was significantly increased in CNP-Tg/Nppc(-/-) mice compared with that in CNP-Tg/Nppc(+/+) mice. Food intake of CNP-Tg/Nppc(-/-) mice upon ad libitum feeding and refeeding after 48 h starvation were reduced by 21% and 61%, respectively, as compared with CNP-Tg/Nppc(+/+) mice. This study unveiled a new aspect of CNP as a molecule regulating food intake and energy expenditure. Further analyses on precise mechanisms of CNP actions would lead to the better understanding of the significance of the CNP/guanylyl cyclase-B system in food intake and energy expenditure.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
1945-7170
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
151
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
3633-42
pubmed:dateRevised
2011-8-3
pubmed:meshHeading
pubmed-meshheading:20555027-Agouti-Related Protein, pubmed-meshheading:20555027-Animals, pubmed-meshheading:20555027-Appetite Regulation, pubmed-meshheading:20555027-Body Temperature, pubmed-meshheading:20555027-Chondrocytes, pubmed-meshheading:20555027-Energy Metabolism, pubmed-meshheading:20555027-Gene Expression Regulation, pubmed-meshheading:20555027-Guanylate Cyclase, pubmed-meshheading:20555027-Injections, Intraventricular, pubmed-meshheading:20555027-Male, pubmed-meshheading:20555027-Mice, pubmed-meshheading:20555027-Mice, Inbred C57BL, pubmed-meshheading:20555027-Mice, Transgenic, pubmed-meshheading:20555027-Natriuretic Peptide, C-Type, pubmed-meshheading:20555027-Neuropeptide Y, pubmed-meshheading:20555027-Norepinephrine, pubmed-meshheading:20555027-Organ Specificity, pubmed-meshheading:20555027-PPAR gamma, pubmed-meshheading:20555027-Tissue Distribution, pubmed-meshheading:20555027-Trans-Activators
pubmed:year
2010
pubmed:articleTitle
C-type natriuretic peptide as a new regulator of food intake and energy expenditure.
pubmed:affiliation
Department of Medicine and Clinical Science, Kyoto University Graduate School of Medicine, Sakyo-ku, Kyoto 606-8507, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't