The hypothalamic arcuate nucleus is an important target for metabolic and hormonal signals controlling food intake. As demonstrated by c-Fos studies, arcuate neurons are activated in food-deprived mice, whereas refeeding reverses the fasting-induced activation. To evaluate whether an increase in blood glucose has an inhibitory effect on these neurons, we analyzed the c-Fos response to an intrap...

PURPOSE To identify whether patients with chronic fatigue syndrome (CFS) have differences in gross brain structure, microscopic structure, or brain perfusion that may explain their symptoms. MATERIALS AND METHODS Fifteen patients with CFS were identified by means of retrospective review with an institutional review board-approved waiver of consent and waiver of authorization. Fourteen age- an...

Although acute food deprivation and chronic food restriction both result in body weight loss, they produce different metabolic states. To evaluate how these two treatments affect hypothalamic peptide systems involved in energy homeostasis, we compared patterns of hypothalamic neuropeptide Y (NPY), agouti-related protein (AgRP), proopiomelanocotin (POMC), and leptin receptor gene expression in a...

Proopiomelanocortin (POMC) neurons send projections widely throughout the brain consistent with their role in regulating numerous homeostatic processes and mediating analgesia and reward. Recent data suggest that POMC neurons located in the rostral and caudal extents of the arcuate nucleus of the hypothalamus may mediate selective actions, however it is not clear if POMC neurons in these region...

Multiple Unit Activity (MUA) of the hypothalamic arcuate nucleus as indicated by discriminated spikes with window setting between 18-30 uV, the integrated MUA and the cortical EEG of the urethane anaesthetized rats on the proestrous day was recorded with the help of a polygraph. Infusion of LH-RH in the 3rd ventricle markedly increased the arcuate nucleus MUA. The effect started within minutes ...

Median arcuate ligament syndrome (MALS), also known as celiac artery compression syndrome is a rare condition characterized by chronic mesenteric ischemia, secondary to the compression of the celiac artery by the median arcuate ligament. Occasionally, in addition to the celiac artery, the superior mesenteric artery may be partially compressed by the median arcuate ligament. We report a case wit...

Summary Analysis of a soil sample from Aizawl district Mizoram, India, led to the discovery Mulveyellus aizawlensis sp. n. The new species is presented with female morphological data and molecular D2-D3 expansion segment 28S 18S rDNA, phylogenetic analysis based on these sequences. morphologically characterised by ventrally arcuate body, presence minute transverse striations cuticle, barrel-sha...