Shining a light on energy homeostasis.

Cell Metab

Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, Nashville, TN 37232-0615, USA.

Published: March 2011

The hypothalamic arcuate nucleus is a complex structure containing both orexigenic and anorexigenic neurons, coordinately regulated by leptin and energy state. In their recent Nature Neuroscience study, Aponte et al. (2011) use optogenetic technology to provide a glimpse into the consequences of exclusive activation of either NPY/AgRP or POMC neurons.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3073614PMC
http://dx.doi.org/10.1016/j.cmet.2011.02.007DOI Listing

Publication Analysis

Top Keywords

shining light
4
light energy
4
energy homeostasis
4
homeostasis hypothalamic
4
hypothalamic arcuate
4
arcuate nucleus
4
nucleus complex
4
complex structure
4
structure orexigenic
4
orexigenic anorexigenic
4

Similar Publications

We have found that surface superstructures made of "monolayer alloys" of Tl and Pb on Si(111), having giant Rashba effect, produce nonreciprocal spin-polarized photocurrent via circular photogalvanic effect (CPGE) by obliquely shining circularly polarized near-infrared (IR) light. CPGE is here caused by the injection of in-plane spin into spin-split surface-state bands, which is observed only on Tl-Pb alloy layers but not on single-element Tl nor Pb layers. In the Tl-Pb monolayer alloys, despite their monatomic thickness, the magnitude of CPGE is comparable to or even larger than the cases of many other spin-split thin-film materials.

View Article and Find Full Text PDF

Response eQTLs, chromatin accessibility, and 3D chromatin structure in chondrocytes provide mechanistic insight into osteoarthritis risk.

Cell Genom

January 2025

Curriculum in Bioinformatics and Computational Biology, University of North Carolina, Chapel Hill, NC 27599, USA; Thurston Arthritis Research Center, University of North Carolina, Chapel Hill, NC 27599, USA; Curriculum in Genetics and Molecular Biology, University of North Carolina, Chapel Hill, NC 27599, USA; Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC 27599, USA; Department of Cell Biology and Physiology, University of North Carolina, Chapel Hill, NC 27599, USA. Electronic address:

Osteoarthritis (OA) poses a significant healthcare burden with limited treatment options. While genome-wide association studies (GWASs) have identified over 100 OA-associated loci, translating these findings into therapeutic targets remains challenging. To address this gap, we mapped gene expression, chromatin accessibility, and 3D chromatin structure in primary human articular chondrocytes in both resting and OA-mimicking conditions.

View Article and Find Full Text PDF

Shining a Light on Spectrophotometry in Bacteriology.

Antibiotics (Basel)

December 2024

School of Veterinary Medicine and Biomedical Sciences, University of Nebraska-Lincoln, Lincoln, NE 68588-0905, USA.

Spectrophotometry is widely used in biological sciences. In bacteriology, spectrophotometric monitoring of cell numbers during cultivation provides a rapid assessment of growth. Unfortunately, familiarity with this technique has led scientists to become complacent in its usage.

View Article and Find Full Text PDF
Article Synopsis
  • This paper explores whether slow-growing broilers improve animal welfare, addressing a key knowledge gap for policymakers and NGOs.
  • The study uses an economic model and the Pain-Track method to quantify welfare impacts throughout the broilers' production cycle.
  • Findings indicate that while slow-growing broilers experience longer periods of lower-intensity negative states, they have reduced higher-intensity negative states, suggesting an overall positive shift in welfare during a transition to these genotypes.
View Article and Find Full Text PDF

Photobiomodulation: shining a light on depression.

Theranostics

January 2025

Department of Neurology, Medical College of Georgia, Augusta University, 1120 15th Street, Augusta, GA, 30912, USA.

Depression is a prevalent public health issue, characterized by persistent low mood, impaired concentration, and diminished motivation. Photobiomodulation (PBM), which involves the application of red or near-infrared light, modulates physiological processes by enhancing cerebral blood flow, reducing inflammation, inhibiting apoptosis, and promoting neurogenesis. PBM can be administered transcranially or through systemic approaches, offering a potentially effective intervention for depression.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!