Search results for "AGRP"
showing 3 items of 3 documents
Food Intake Adaptation to Dietary Fat Involves PSA-Dependent Rewiring of the Arcuate Melanocortin System in Mice
2012
International audience; Hormones such as leptin and ghrelin can rapidly rewire hypothalamic feeding circuits when injected into rodent brains. These experimental manipulations suggest that the hypothalamus might reorganize continually in adulthood to integrate the metabolic status of the whole body. In this study, we examined whether hypothalamic plasticity occurs in naive animals according to their nutritional conditions. For this purpose, we fed mice with a short-term high-fat diet (HFD) and assessed brain remodeling through its molecular and functional signature. We found that HFD for 3 d rewired the hypothalamic arcuate nucleus, increasing the anorexigenic tone due to activated pro-opio…
Susceptibility variants for obesity and type 2 diabetes mellitus in the population of Latvia
2014
Darbs ietver pētījumus par riska gēnu lokusos esošo biežo variantu saistību ar 2.tipa cukura diabētu (T2D) un aptaukošanos Latvijas populācijā. Pētījumu parādīja, ka potenciāli funkcionāls variants AGRP asociējas ar paaugstinātu ĶMI. Savukārt, adiponektīna gēna rajonā esošie varianti nav uzskatāmi par būtiskiem aptaukošanās un T2D riska faktoriem mūsu populācijā, bet iespējams ir iesaistīti kardiovaskulāro saslimšanu patoģenēzē. Varianti TCF7L2 ir nozīmīgi T2D riska faktori pacientiem ar normālu ķermeņa svaru. Iegūtie dati papildina informāciju par FTO un TMEM18 rajonos esošo adipozitātes riska variantu saistību ar T2D neatkarīgi no to ietekmes uz izmaiņām ĶMI. Varianti FTO ceturtajā intron…
Age- and quality-dependent DNA methylation correlate with melanin-based coloration in a wild bird
2018
Abstract Secondary sexual trait expression can be influenced by fixed individual factors (such as genetic quality) as well as by dynamic factors (such as age and environmentally induced gene expression) that may be associated with variation in condition or quality. In particular, melanin‐based traits are known to relate to condition and there is a well‐characterized genetic pathway underpinning their expression. However, the mechanisms linking variable trait expression to genetic quality remain unclear. One plausible mechanism is that genetic quality could influence trait expression via differential methylation and differential gene expression. We therefore conducted a pilot study examining…