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Olfaction
Olfaction

... A single olfactory receptor or nerve fiber responds to many different odorants ...
Separate Domains of the Insulin Receptor Contain
Separate Domains of the Insulin Receptor Contain

... briefly at 22 OC with low concentrations (5-10 pg/mL, pH 7.4) of trypsin, staphylococcal V8 protease, or elastase. Autophosphorylation of the @-subunit was carried out before and after digestion, and the [32P]phosphoproteinswere separated by sodium dodecyl sulfate-polyacrylamide gel electrophoresis, ...
Neyroleptiklər
Neyroleptiklər

... antagonists. Although they are also effective antagonists at ACh, 5HT, NE receptors. ...
Article Conserved Higher-Order Chromatin Regulates NMDA Receptor Gene Expression and Cognition Neuron
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... GRIN2B locus, we employed chromosome conformation capture (3C) on prefrontal cortex (PFC) of adult subjects, and cultured fibroblasts for comparison. Given that both the GRIN2B gene body and the surrounding 50 and 30 sequences were epigenetically decorated with sharp peaks for histone H3 acetylated ...
Plasma Lipoproteins
Plasma Lipoproteins

... The chylomicron remnant-, IDL-, and LDLderived cholesterol affects cellular cholesterol content in several ways. First, HMG CoA reductase is inhibited by high cholesterol, as a result of which, de novo cholesterol synthesis decreases. Second, synthesis of new LDL receptor protein is reduced by decre ...
Document
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... gain insight on how to develop inhibitors that block the Ca2+ dependent interaction between the two proteins. complex: peptide derived from p53 (22 residues, S367-E388) bound to S100B(bb) (~13 kDa) forms a quaternary complex consisting of two p53 peptides per S100B(bb) dimer. background: • the tumor ...
IDENTIFICATION OF DUAL AGONISTIC NOVEL LIGANDS FOR INSULIN RECEPTOR AND... THROUGH MOLECULAR DOCKING
IDENTIFICATION OF DUAL AGONISTIC NOVEL LIGANDS FOR INSULIN RECEPTOR AND... THROUGH MOLECULAR DOCKING

... Diabetes mellitus (DM) is a progressive disease characterized by insulin deficiency and insulin resistance. The targets insulin receptor and PPARγ associated protein [PDB: 1IRK, 3KDU] were obtained from protein data bank. Chemsketch 12.0 software was used to draw the three dimensional structure of t ...
TEMPORAL AND REGIONAL REGULATION OF a1, b2 AND b3
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... b1–3, g2) messenger RNAs was investigated in the rat hippocampus and cortex, among other brain areas. Rats were orally administered flurazepam for one week, a protocol which results in benzodiazepine anticonvulsant tolerance in vivo, and in the hippocampus in vitro, in the absence of behavioral sign ...
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... progression of many diseases. Apoptosis is essential for the development and survival of multi-cellular organisms. Malignant diseases, including haematologic malignancies, are associated with defects in the cell death mechanism. These defects are not only important for the growth advantage of malign ...
The role of progesterone and GABA in PMS/PMDD
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... Studies have also reported the negative effects of allopregnanolone, which has been shown to increase irritability/aggression16 and inhibit learning.17 Treatment with progesterone in a rat model of PMDD induces anxiety, related to an increased 4 subunit of the GABA-A receptor in hippocampus, which ...
(pdf-file 1,2 Mb)
(pdf-file 1,2 Mb)

... particle lacks the prominent ‘beak’, which is a protrusion of helix 33 of the 18S rRNA (Fig. 2a, c). Moreover, additional mass is visible adjacent to the ‘platform’ of the pre-40S particle, which could represent non-ribosomal factors (see also Supplementary Fig. S2a). Next we performed cryoelectron ...
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... terminals making synapses with pyramidal cells and other types of interneuron. Distinct levels of mGluR7 are fo und at different synapses made by individual pyramidal axons or even single boutons. These results raise the possibility that presynaptic neurons could regulate the probability of transmit ...
3-Morpholinylsydnonimine Inhibits Glutamatergic Transmission in
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... coupled signaling pathways. Because SIN-1 produces both NO and superoxide anion upon decomposition (Feelisch et al., 1989; Holm et al., 1998) and biological tissues contain oxidants that are potentially capable of eliciting NO formation during the decomposition of SIN-1 (Trackey et al., 2001), it is ...
166 - UCSF Physiology - University of California, San Francisco
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... in long-term potentiation (LTP). Deletion of ␤1 integrin at a later postnatal stage also impaired LTP but not synaptic responses to HFS. Thus, the ␤1-class integrins appear to play distinct roles at different stages of synaptic development, critical for the proper maturation of readily releasable po ...
Performance enhancement at the cost of potential brain plasticity
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... aspects of cognition. Further supporting this theory, we discovered that the depression of neuronal activity was due, at least in part, to activation of a channel known as the hyperpolarizationactivated non-specific cation channel (HCN; Urban et al., 2012). The HCN channel allows for flow of positiv ...
Use of angiotensin receptor antagonists in patients with ACE
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... The clinical trial conducted by Granger et al. 1 reports 3 cases of angioedema among the 1,013 individuals in the candesartan group (0.3%). This exceeds the incidence of ARA associated angioedema in the general population and even exceeds the incidence of 0.1–0.2%, reported for the widely recognized ...
Body Temperature and Analgesic Effects of Selective Mu and Kappa
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... Accepted for publication December 5, 1996 ...
A novel brain receptor is expressed in a distinct population of
A novel brain receptor is expressed in a distinct population of

... which mediate signals to the interior of cells via activation of heterotrimeric G-proteins, which subsequently interact with and activate various effector proteins, ultimately resulting in the physiological response. GPCRs are involved in the transduction of a large variety of extracellular signals ...
The Roles of Excitatory Amino Acids and Cytokines in Morphine
The Roles of Excitatory Amino Acids and Cytokines in Morphine

... opioid receptors uncoupling from G-proteins and receptor down-regulation, are well-known mechanisms of opioid tolerance [3, 4]. Recent studies have proposed that betweensystem adaptations, such as the pain facilitatory systems (opiate-activated opponent systems) also may play an important role in th ...
The Cell Adhesion Molecule Neuroplastin
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... are cell adhesion molecules of the immunoglobulin superfamily that contain three or two extracellular immunoglobulin domains, respectively (26), which are derived from alternative splicing from a single gene. These proteins also contain a single transmembrane and a short intracellular domain. Both n ...
Slide 1
Slide 1

... intracellular lysosomes cholesterol molecules can then be utilized as substrate in various biosynthetic pathways cholesterol produced from hydrolysis of LDL particles exerts a negative feedback effect on de novo cholesterol synthesis by mevalonate pathway, as well on the synthesis of new LDL recepto ...
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Drugs and the Synapse

... Drugs and the Synapse • Nicotine is the active ingredient in tobacco. • Nicotine stimulates one type of acetylcholine receptor known as the nicotinic receptor. • Nicotinic receptors are found in the central nervous system, the nerve-muscle junction of skeletal muscles and in the nucleus accumbens. ...
Amyloid-b Acts as a Regulator of Neurotransmitter Release
Amyloid-b Acts as a Regulator of Neurotransmitter Release

... Intriguingly though, at low concentrations Ab induces LTP possibly through a-7 nicotinic acetylcholine receptors [19]. Furthermore, Ab induces LTD and excitotoxicity mediated by NMDARs receptors [20]. The importance of glutamate signalling via NMDARs as a causative event of dementia in AD is further ...
Steroids: Estrogens, Synthetic Estrogens, Estrogen Antagonists
Steroids: Estrogens, Synthetic Estrogens, Estrogen Antagonists

...  In 1929 Adolf Butenandt and Edward Adelbert Doisy independently isolated and determined the structure of estrogen.  The first orally effective estrogen, Emmenin, was derived from the late-pregnancy urine of Canadian women, and was introduced in 1930 ...
Sensory Afferent Neurotransmission in Caudal Nucleus Tractus
Sensory Afferent Neurotransmission in Caudal Nucleus Tractus

... preferences, three classes of inotropic receptors are distinguished: N-methyl-D-aspartate (NMDA) and two non-NMDA classes, AMPA and kainate. Baroreflexes are blocked by micro-injection of broad-spectrum Glu antagonists into NTS (Andresen and Kunze, 1994; Ohta and Talman, 1994). Micro-injection of Gl ...
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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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