# |
PMID |
Sentence |
1 |
16210367
|
As anticipated, the intracerebroventricular infusion of leptin reduced fasting-induced elevations in NPY and AGRP mRNA and increased proopiomelanocortin and cocaine and amphetamine-regulated transcript mRNA in the arcuate nucleus.
|
2 |
16876574
|
Leptin activates Janus-activating kinase2 (Jak2) and STAT 3, resulting in stimulation of anorexigenic peptides, e.g., alpha-MSH and CART, and inhibition of orexigenic peptides, e.g., NPY and AGRP.
|
3 |
19883613
|
PI3K signaling is thought to mediate leptin and insulin action in hypothalamic pro-opiomelanocortin (POMC) and agouti-related protein (AgRP) neurons, key regulators of energy homeostasis, through largely unknown mechanisms.
|
4 |
21282365
|
In addition, intracerebroventricular administration of leptin decreased TTF-1 expression in the hypothalamus, and AS ODN-induced inhibition of TTF-1 expression decreased food intake and AgRP expression but increased ?-MSH expression.
|
5 |
21574956
|
The age-related central resistance to leptin and insulin does not reduce their inhibitory effects on the activity of NPY and AgRP neurons.
|
6 |
11359864
|
We further found that up-regulation of AGRP expression was normalized by infusion of leptin into the third cerebroventricle (i3vt), but not by i3vt infusion of insulin, although up-regulation of AGRP was partially corrected by systemic insulin infusion.
|
7 |
10512369
|
We also studied leptin's regulation of hypothalamic AGRP mRNA expression.
|
8 |
10512369
|
Hypothalamic AGRP mRNA expression was upregulated in leptin-deficient ob/ob mice and leptin receptor-deficient db/db mice and downregulated in lethal yellow agouti mice (KKAy mice) with hyperleptinemia.
|
9 |
10512369
|
This study provides the first direct evidence that AGRP is a negative regulator of leptin action, and leptin downregulates hypothalamic AGRP production.
|
10 |
17400800
|
This phenotype also shows significant alterations in POMC, NPY, AgRP and OBRb gene expression together with elevations in circulating levels of both plasma leptin and insulin.
|