Complex animals build specialised muscles to match specific biomechanical and energetic needs. Hence, composition and architecture of sarcomeres and mitochondria are muscle type specific. However, mechanisms coordinating mitochondria with sarcomere morph
(redirected fromFeedback mechanism) Thesaurus Medical Encyclopedia feedback inhibition n. A cellular control mechanism in which an enzyme that catalyzes the production of a particular substance in the cell is inhibited when that substance has accumulated to a certain level, thereby balancing the amount...
There are two mechanisms involved in homeostasis, negative and positive, whose purpose is to return the body back to normal after any stressors. Feedback mechanism 64 Words 1 Pages Satisfactory Essays Read More Blood Glucose Regulation And Negative Feedback Hyperglycaemia is when blood sugar levels...
Thompson, RR, Walton, JC, Bhalla, R, George, KC, Beth, EH (2008) A primitive social circuit: vasotocin-substance P interactions modulate social behavior through a peripheral feedback mechanism in goldfish. Eur J Neurosci 27: pp. 2285-2293...
In these animals a chronic gastric fistula was made so gastric secretion could also be collected. Diversion-replacement of pure pancreatic juice and of bile were carried out in the fasting state. This study confirms the presence of a feedback regulatory mechanism in exocrine pancreatic secretion in...
Endocannabinoids, particularly 2-AG, act as retrograde messengers in the CNS. Thisnegative feedback mechanismis conserved at glutamatergic synapses in the spinal cord, midbrain, striatum,hippocampusand in the prefrontal andsomatosensory cortices(Katona & Freund, 2008). How does the eCB-mediated retrogr...
However, external sensory feedback is inherently delayed and incomplete, thereby reducing the rate and extent of learning in neuronal circuits3. These observations suggest that the brain may employ a general mechanism to facilitate learning when external feedback is not readily available. The ...
Our results reveal an innate adaptive positive-feedback mechanism with a PPARα-D6D-AA axis that is triggered by a brief cold exposure in cells. “Cold adaptation” could have evolved to increase strength and resilience against imminent extreme cold temperatures....
HSC activation is driven in part through the phosphatidylinositol 3-kinase (PI3K)/AKT/mTORC1 signaling pathway, but less is known about the cell-intrinsic pathways that control HSC dormancy. Here, we delineate an ERK-dependent, rate-limiting feedback mechanism that controls HSC fitness and their ...
"For most animals, smell is a very, very important thing," Murthy added. "If they are in an environment where there's one overwhelming smell that's irrelevant, they need to be able to detect a weak smell that may signal danger. We are hypothesizing that this mechanism, where the corte...