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Concept

Neuropeptide Y

Publications associées (17)

Hippo-YAP/TAZ signalling coordinates adipose plasticity and energy balance by uncoupling leptin expression from fat mass

Johan Auwerx, Jun Yong Kim, Maroun Bou Sleiman, Xiaoxu Li

Adipose tissues serve as an energy reservoir and endocrine organ, yet the mechanisms that coordinate these functions remain elusive. Here, we show that the transcriptional coregulators, YAP and TAZ, uncouple fat mass from leptin levels and regulate adipocy ...

Nature Portfolio2024

Cognitive Impairment and Metabolite Profile Alterations in the Hippocampus and Cortex of Male and Female Mice Exposed to a Fat and Sugar-Rich Diet are Normalized by Diet Reversal

João Miguel das Neves Duarte, Adélaïde Alice Mohr

Diabetes impacts on brain metabolism, structure, and function. Alterations in brain metabolism have been observed in obesity and diabetes models induced by exposure to diets rich in saturated fat and/or sugar and have been linked to memory impairment. Howe ...

INT SOC AGING & DISEASE2022

Hypothalamic pregnenolone mediates recognition memory in the context of metabolic disorders

Maria del Carmen Sandi Perez, Ioannis Zalachoras

Obesity and type 2 diabetes are associated with cognitive dysfunction. Because the hypothalamus is implicated in energy balance control and memory disorders, we hypothesized that specific neurons in this brain region are at the interface of metabolism and ...

Cell Press2022

Somatostatin enhances visual processing and perception by suppressing excitatory inputs to parvalbumin-positive interneurons in V1

Graham Knott, Carl Petersen, Catherine Maclachlan

Somatostatin (SST) is a neuropeptide expressed in a major subtype of GABAergic interneurons in the cortex. Despite abundant expression of SST and its receptors, their modulatory function in cortical processing remains unclear. Here, we found that SST appli ...

2020

Molecular codes and in vitro generation of hypocretin and melanin concentrating hormone neurons

Sha Li, Hasan Pezeshgi Modarres

Hypocretin/orexin (HCRT) and melanin concentrating hormone (MCH) neuropeptides are exclusively produced by the lateral hypothalamus and play important roles in sleep, metabolism, reward, and motivation. Loss of HCRT (ligands or receptors) causes the sleep ...

National Academy of Sciences2019

Bile acids drive colonic secretion of glucagon-like-peptide 1 and peptide-YY in rodents

Kristina Schoonjans

A large number of glucagon-like-peptide-1(GLP-1)- and peptide-YY (PYY)-producing L cells are located in the colon, but little is known about their contribution to whole body metabolism. Since bile acids (BAs) increase GLP-1 and PYY release, and since BAs s ...

AMER PHYSIOLOGICAL SOC2019

Modeling and performance investigation of insulin injection pen for diabetic persons

Catherine Dehollain, Maria-Alexandra Paun

This paper is focused on modeling and performance investigation of insulin injection pens used by diabetic persons. A smart pen cap with two electrodes is used as a capacitive sensor for insulin dose detection and is presented in details. To faithfully ana ...

IEEE2019

Stress Impacts the Regulation Neuropeptides in the Rat Hippocampus and Prefrontal Cortex

Aurélie Lattion, Laura Lozano Montes

Adverse life experience increases the lifetime risk to several stress-related psychopathologies, such as anxiety or depressive–like symptom following stress in adulthood. However, the neurochemical modulations triggered by stress have not been fully charac ...

2018

Mfn2 is critical for brown adipose tissue thermogenic function

Carlos Canto Alvarez, Joanna Ratajczak, Miriam Valera Alberni

Mitochondrial fusion and fission events, collectively known as mitochondrial dynamics, act as quality control mechanisms to ensure mitochondrial function and fine-tune cellular bioenergetics. Defective mitofusin 2 (Mfn2) expression and enhanced mitochondri ...

Wiley2017

Neural assemblies as core elements for modeling neural networks in the brain

Hesam Setareh

How does the brain process and memorize information? We all know that the neuron (also known as nerve cell) is the processing unit in the brain. But how do neurons work together in networks? The connectivity structure of neural networks plays an important ...

EPFL2017

Shedding of neurexin 3 beta ectodomain by ADAM10 releases a soluble fragment that affects the development of newborn neurons

Patrick Fraering, Mitko Dimitrov, Magda Maria Palczynska

Neurexins are transmembrane synaptic cell adhesion molecules involved in the development and maturation of neuronal synapses. In the present study, we report that Nrxn3 beta is processed by the metalloproteases ADAM10, ADAM17, and by the intramembrane-clea ...

Nature Research2016

Isoform switching of steroid receptor co-activator-1 attenuates glucocorticoid-induced anxiogenic amygdala CRH expression

Maladaptive glucocorticoid effects contribute to stress-related psychopathology. The glucocorticoid receptor (GR) that mediates many of these effects uses multiple signaling pathways. We have tested the hypothesis that manipulation of downstream factors (' ...

Nature Publishing Group2016

Resistance to Diet-Induced Obesity and Associated Metabolic Perturbations in Haploinsufficient Monocarboxylate Transporter 1 Mice

Pierre Magistretti, Sylvain Eric Lengacher

The monocarboxylate transporter 1 (MCT1 or SLC16A1) is a carrier of short-chain fatty acids, ketone bodies, and lactate in several tissues. Genetically modified C57BL/6J mice were produced by targeted disruption of the mct1 gene in order to understand the ...

Public Library of Science2013

Effect of manganese chloride on the neurochemical profile of the rat hypothalamus

Rolf Gruetter, Cristina Ramona Cudalbu Moldovan, Hongxia Lei, Nathalie Just

Manganese (Mn 2+)-enhanced magnetic resonance imaging studies of the neuronal pathways of the hypothalamus showed that information about the regulation of food intake and energy balance circulate through specific hypothalamic nuclei. The dehydration-induce ...

Nature Publishing Group2011

Expression of the leptin receptor outside of bone marrow-derived cells regulates tuberculosis control and lung macrophage MHC expression

John McKinney

Leptin is a pleiotropic hormone proposed to link nutritional status to the development of strong Th1 immunity. Because Mycobacterium tuberculosis control is affected by starvation and diabetes, we studied the role of the leptin receptor in regulating disti ...

American Association of Immunologists ; Oxford University Press2011

The dynamics of cardiolipin synthesis post-mitochondrial fusion

Richardus Houtkooper

Alteration in mitochondrial fusion may regulate mitochondrial metabolism. Since the phospholipid cardiolipin (CL) is required for function of the mitochondrial respiratory chain, we examined the dynamics of CL synthesis in growing Hela cells immediately af ...

2010

The rate-limiting step for glucose transport into the hypothalamus is across the blood–hypothalamus interface

Rolf Gruetter, Hongxia Lei, Carole Poitry-Yamate

Specialized glucosensing neurons are present in the hypothalamus, some of which neighbor the median eminence, where the blood–brain barrier has been reported leaky. A leaky blood–brain barrier implies high tissue glucose levels and obviates a role for endo ...

Wiley-Blackwell2009