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Gee JNeuro 2012 - Stanford University
Gee JNeuro 2012 - Stanford University

... Surprisingly, this afterdepolarization is masked in quiescent brain slices, but is readily unmasked by physiologic levels of synaptic input which activate NMDA receptors, possibly explaining why this phenomenon has not been reported previously. Notably, we could still elicit this afterdepolarization ...
AMPA Receptor Calcium Permeability, GluR2
AMPA Receptor Calcium Permeability, GluR2

... AMPA receptor-mediated excitotoxicity is proposed to play a major pathogenic role in the selective motoneuron death of amyotrophic lateral sclerosis. Motoneurons have been shown in various models to be more susceptible to AMPA receptormediated injury than other spinal neurons. It has been hypothesiz ...
The ErbB/HER receptor protein
The ErbB/HER receptor protein

... The ErbB/HER protein-tyrosine kinases, which include the epidermal growth factor receptor, consist of a growth-factor-binding ectodomain, a single transmembrane segment, an intracellular protein-tyrosine kinase catalytic domain, and a tyrosine-containing cytoplasmic tail. The genes for the four memb ...
[3h]cyclohexyladenosine
[3h]cyclohexyladenosine

... layer of the cerebellum. Of the brain stem areas evaluated, the highest density occurs in the nucleus of the spinal tract of the trigeminal nerve. In the spinal cord, a high density of receptors occurs in the substantia gelatinosa. Adjacent sections of all brain areas studied incubated in the presen ...
Print
Print

... Expression of these dependence receptors creates cellular states of dependence on the associated ligands. These states of dependence are not absolute, since they can be blocked downstream in some cases by the expression of antiapoptotic genes such as bcl-2 or p35 (15, 42, 81); however, they result i ...
I. Morphine
I. Morphine

... – Drowsiness is common – Continuous dull pain relieved more effectively than sharp intermittent pain – Most patients indicate that they can still feel the pain, but that it no longer bothers them – Morphine is an agonist at μ and қ opioid receptors. ...
2. Fredriksson, R., et al., The G-protein
2. Fredriksson, R., et al., The G-protein

... the border between transmembrane domain III (TMIII) and intracellular loop 2 (IL2). The ligands for most of the rhodopsin receptors bind within a cavity between the TM regions [29]. The receptors of the secretin family (class B) bind to large peptide ligands that share high sequence similarity and m ...
Anti-platelets
Anti-platelets

... • Cyclic peptide inhibitor of the fibrinogen binding site on GpIIb/IIIa receptor • Short duration of action: 6-12 hrs • Given with aspirin and heparin • Use: – Acute coronary syndrome – Angioplastic coronary interventions • Adverse effects: – Bleeding (10%) – Thrombocytopenia (0.5-1%) 3) Tirofiban • ...
invited review - AJP
invited review - AJP

... layer of polarized epithelial cells (thyrocytes) that surround a spherical lumen that contains colloid, a viscous substance composed mainly of Tg (10, 27, 28). Tg is produced exclusively by thyrocytes and follows the usual biosynthetic pathway. It is synthesized and initially processed in the endopl ...
pjp6`2001.vp:CorelVentura 7.0 - Institute of Pharmacology
pjp6`2001.vp:CorelVentura 7.0 - Institute of Pharmacology

... have profound effects on the dopaminergic neurotransmission. For example, it has been observed that corticosterone, operating via GR alters the turnover rate and release of dopamine, evokes changes in the density of dopaminergic receptors of D1 subtype, with the subsequent alteration in their mRNA l ...
MS Word  - VCU Secrets of the Sequence
MS Word - VCU Secrets of the Sequence

... 1. Before conducting this activity, review neuron structure and functions with the students to prepare them for constructing and labeling neurons. Some information is included in the Student Handout but you may wish to expand on this. For example, you may wish to provide more detail on the ‘action p ...
Jumpin` the Gap - Teach Genetics (Utah)
Jumpin` the Gap - Teach Genetics (Utah)

... waste disposal, information feedback, and even movement. In addition, most cells in multicellular organisms perform some special functions that others do not. The Human Organism • Basic Functions » The nervous system works by electrochemical signals in the nerves and from one nerve to the next. The ...
Benzodiazepine Metabolism and Pharmacokinetics
Benzodiazepine Metabolism and Pharmacokinetics

... different side chains, which determine their pharmacokinetic profile. Benzodiazepines are used for their anxiolytic, antiepileptic, muscle relaxant, and hypnotic effects. Apart from their medical benefit, they have the potential for abuse and misuse. Benzodiazepines with fast onset and short half-li ...
Disruption of experience-dependent synaptic modifications in striate
Disruption of experience-dependent synaptic modifications in striate

... GABA, receptor antagonist bicuculline and found that the deprived eye inputs were retained in area 17. Finally, both Frtgnac et al. (1988) and Greuel et al. (1988) found in acute preparations that synaptic effectiveness could be changed by pairing retinal stimulation with the ionophoretic applicatio ...
nausea and vomiting - KSU Faculty Member websites
nausea and vomiting - KSU Faculty Member websites

... (fig. 1), these include afferent from the pharynx, gastrointestinal tract and mediastinum, as well as afferent from the higher cortical center (including the visual center and the vestibular portion of the eight cranial nerve) and the chemoreceptor trigger zone (CTZ) in the area postrema. (Watcha an ...
The Interacting Neuroendocrine Network in Stress
The Interacting Neuroendocrine Network in Stress

... evidences indicate that major depression courses with significant altered changes in morphology and stereology of neurons cells and brain tissue; whereas treatment with antidepressants may significantly overcome the cell atrophy and the reduced volumes measured in limbic structures of subjects with ...
Slide 1
Slide 1

...  CANNOT BE DEMETHYLATED BY HUMANS  LAXATION WITHIN HOURS ...
Calcitonin Gene-Related Peptides
Calcitonin Gene-Related Peptides

... calcitonin, amylin, and adrenomedullin. It exists in two isoforms α-CGRP (or CGRP I) and β-CGRP (or CGRP II) which are very similar in their biological activities but are encoded by different genes. CGRP peptides are mainly localized in sensory and central neurons and have been implicated in a varie ...
C3 receptors on macrophages - Journal of Cell Science
C3 receptors on macrophages - Journal of Cell Science

... the structure of C3c, with a protease-dependent variable number of polypeptides held together as a.single molecule by disulphide bonds and non-covalent forces, has usually not been analysed in detail. C3d, however, is invariably found as a single polypeptide containing both the covalent binding site ...
Synaptic Transmission 1
Synaptic Transmission 1

... ionotropic receptors • The affinity of transmitter for receptors is usually low (10-100 µM) • Release leads to a high concentration of transmitter (1-10 mM) for a brief period of time in a small volume • Receptor occupancy can be substantial, despite low affinity of receptors for transmitter (are ...
May 30, 04copy.doc
May 30, 04copy.doc

... and physiological (Welker, 1971, 1976; Simons, 1978; Simons and Woolsey, 1979) effects of whisker stimulation and/or deprivation, and to investigate the experience-dependent maintenance of synapses (Micheva and Beaulieu, 1996), neurotransmitters (Micheva and Beaulieu, 1995), and neurotransmitter rec ...
Hypertension
Hypertension

... celiprolol metoprolol ...
drugs acting at the neuromuscular junction
drugs acting at the neuromuscular junction

... cause fasciculations (small visible contractions of muscles) just before paralysis occurs. This is due to the depolarization of the muscle. These drugs are inactivated (broken down) by an enzyme in many ways similar to AChE but different in the nature of substrates they breakdown, referred to as pse ...
Heel 2
Heel 2

... 2- Cholinomimetic Alkaloids: Pilocarpine and muscarine. B- Indirectly Acting (Anticholinesterases):  anticholinesterase  accumulation of endogenous A.Ch infront of cholinergic receptors(Muscarinic & Nicotinic)  effects that mimic the parasympathetic nervous system. They are subdivided into: *Reve ...
Activation instead of blocking mesolimbic dopaminergic reward
Activation instead of blocking mesolimbic dopaminergic reward

... normal or sufficient amount of DA receptors results in low craving behavior. In terms of preventing substance abuse, one goal would be to induce a proliferation of DA D2 receptors in genetically prone individuals. While in vivo experiments using a typical D2 receptor agonist induce down regulation, ...
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NMDA receptor



The N-methyl-D-aspartate receptor (also known as the NMDA receptor or NMDAR), is a glutamate receptor and ion channel protein found in nerve cells. It is activated when glutamate and glycine (or D-serine) bind to it, and when activated it allows positively charged ions to flow through the cell membrane. The NMDA receptor is very important for controlling synaptic plasticity and memory function.The NMDAR is a specific type of ionotropic glutamate receptor. The NMDA receptor is named this because the agonist molecule N-methyl-D-aspartate (NMDA) binds selectively to it, and not to other glutamate receptors. Activation of NMDA receptors results in the opening of an ion channel that is nonselective to cations with a reversal potential near 0 mV. A property of the NMDA receptor is its voltage-dependent activation, a result of ion channel block by extracellular Mg2+ & Zn2+ ions. This allows the flow of Na+ and small amounts of Ca2+ ions into the cell and K+ out of the cell to be voltage-dependent.Calcium flux through NMDARs is thought to be critical in synaptic plasticity, a cellular mechanism for learning and memory. The NMDA receptor is distinct in two ways: first, it is both ligand-gated and voltage-dependent; second, it requires co-activation by two ligands: glutamate and either D-serine or glycine.The activity of the NMDA receptor is affected by many psychoactive drugs such as phencyclidine (PCP), alcohol (ethanol) and dextromethorphan (DXM). The anaesthetic effects of the drugs ketamine and nitrous oxide are partially because of their effects on NMDA receptor activity.
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