Abstract:
:The inhibition of [3H]5-hydroxytryptamine [( 3H]5-HT) binding in rat brain by 1-[2-(3-bromoacetamidophenyl)ethyl]-4-(3-trifluoromethylphenyl) piperazine (BrAcTFMPP) and that by spiperone were compared. Spiperone inhibition of [3H]5-HT binding in cortex was consistent with displacement from two sites with dissociation constants (KD) of 24 nM (5-HT-1A site) and 19 microM (5-HT-1B site) for spiperone. BrAcTFMPP also discriminated two subpopulations of [3H]5-HT binding sites with dissociation constants of 0.5 nM and 146 nM for the compound. The proportion of high-affinity sites for each compound represented about 35% of the specific [3H]5-HT binding. In the presence of 1 microM spiperone, a concentration that saturates the 5-HT-1A sites while having a minimal effect on 5-HT-1B sites, BrAcTFMPP displaced [3H]5-HT from a single site with a KD for BrAcTFMPP of 145 nM. The inhibition of [3H]5-HT binding by spiperone in the presence of 30 nM BrAcTFMPP was best fit by a single-site model with a KD of 21 microM for spiperone. In corpus striatum, 5-HT-1A sites, as defined with spiperone, represented 15% of the specific [3H]5-HT binding and 30 nM BrAcTFMPP also blocked about 15% of the binding. A significant difference between spiperone and BrAcTFMPP was their affinity for 5-HT-2 receptors. BrAcTFMPP (KD = 41 nM) had an 80-fold lower affinity for these sites than spiperone (KD = 0.5 nM). Thus, BrAcTFMPP and spiperone discriminate the same two subpopulations of [3H]5-HT binding sites and BrAcTFMPP displays a high affinity and a selectivity for 5-HT-1A sites versus both 5-HT-1B and 5-HT-2 sites.
journal_name
J Neurochemjournal_title
Journal of neurochemistryauthors
Ransom RW,Asarch KB,Shih JCdoi
10.1111/j.1471-4159.1985.tb12897.xsubject
Has Abstractpub_date
1985-03-01 00:00:00pages
875-80issue
3eissn
0022-3042issn
1471-4159journal_volume
44pub_type
杂志文章abstract::Dopamine beta-hydroxylase (DBH; EC 1.14.17.1) exists as membrane-bound and soluble forms in neurosecretory vesicles. The features of DBH required for glycosylation and incorporation into membranes were studied in a cell-free system. Translation of full-length DBH with microsomal membranes generated two glycosylated pr...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1995.64010025.x
更新日期:1995-01-01 00:00:00
abstract::Precise cellular targeting of macromolecular cargos has important biotechnological and medical implications. Using a recently established 'protein stapling' method, we linked the proteolytic domain of botulinum neurotoxin type A (BoNT/A) to a selection of ligands to target neuroendocrine tumor cells. The botulinum pro...
journal_title:Journal of neurochemistry
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journal_title:Journal of neurochemistry
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doi:10.1046/j.1471-4159.1999.0722498.x
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journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1968.tb10323.x
更新日期:1968-08-01 00:00:00
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journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1988.tb01829.x
更新日期:1988-09-01 00:00:00
abstract::Tau is a microtubule-associated protein whose transcript undergoes complex regulated splicing in the mammalian nervous system. Exon 6 of the gene is an alternatively spliced cassette whose expression pattern and splicing regulation had not been previously analyzed in the human. The expression profile of exon 6 is comp...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1998.70041346.x
更新日期:1998-04-01 00:00:00
abstract::The purpose of the present study was to clarify the expression, transport properties and regulation of ATP-binding cassette G2 (ABCG2) transporter at the rat blood-brain barrier (BBB). The rat homologue of ABCG2 (rABCG2) was cloned from rat brain capillary fraction. In rABCG2-transfected HEK293 cells, rABCG2 was detec...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2004.02537.x
更新日期:2004-08-01 00:00:00
abstract::Arachidonic acid (AA) plays an important role as a signaling factor in the CNS. Therefore, exposure to AA may affect cholinergic neurons in the spinal cord. To test this hypothesis, mRNA expression and activity of choline acetyltransferase (ChAT) was measured in cultured spinal cord neurons treated with increasing con...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2004.02535.x
更新日期:2004-08-01 00:00:00
abstract::We sought to investigate whether dexamethasone produces a coordinated, time-dependent effect on all enzymes in the catecholamine biosynthetic pathway in PC12 cells. The levels of mRNAs of tyrosine hydroxylase (TH), aromatic L-amino acid decarboxylase (AADC), and dopamine beta-hydroxylase (DBH) were examined at 0, 6, 1...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1993.tb03241.x
更新日期:1993-03-01 00:00:00
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journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.2003.01556.x
更新日期:2003-02-01 00:00:00
abstract::Therapy of malignant glioma relies on treatment with the O6 -methylating agent temozolomide (TMZ) concomitant with ionizing radiation followed by adjuvant TMZ. For the treatment of recurrences, DNA chloroethylating drugs are also used. The main killing lesion induced by these drugs is O6 -alkylguanine. Since this dama...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/jnc.14262
更新日期:2018-01-01 00:00:00
abstract::Young parkin null (pk-/-) mice have subtle abnormalities of behaviour, dopamine (DA) neurotransmission and free radical production, but no massive loss of DA neurons. We investigated whether these findings are maintained while ageing. Pk-/- mice have reduced life span and age-related reduced exploratory behaviour, abn...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2007.04762.x
更新日期:2007-10-01 00:00:00
abstract::Spinal muscular atrophy (SMA) is a motor neuron disease caused by loss of function mutations in the Survival Motor Neuron 1 (SMN1) gene and reduced expression of the SMN protein, leading to spinal motor neuron death, muscle weakness and atrophy. Although humans harbour the highly homologous SMN2 gene, its defective sp...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
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abstract::This study investigated the temporal expression and cell subtype distribution of activated caspase-3 following cortical impact-induced traumatic brain injury in rats. The animals were killed and examined for protein expression of the proteolytically active subunit of caspase-3, p18, at intervals from 6 h to 14 days af...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.2000.0751264.x
更新日期:2000-09-01 00:00:00
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journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/jnc.15119
更新日期:2020-07-06 00:00:00
abstract::Phosphorylation of brain spectrin was studied by a combination of in vivo and in vitro approaches. Chemical analysis of phosphate groups on electrophoretically purified mouse brain beta-spectrin yielded a stoichiometry of 3.2 +/- 0.18 mol of PO4/mol of beta-spectrin. The spectrin isolated by chromatographic methods fr...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1998.71052220.x
更新日期:1998-11-01 00:00:00
abstract::Angiotensin-converting enzyme (ACE) activity was measured in microvessels prepared from cerebral cortices of 4-week-old spontaneously hypertensive rats (SHR). The Vmax value of the ACE activity in the cerebral microvessels of SHR was lower than that of Wistar Kyoto controls of the same age by 25% without difference in...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1985.tb08761.x
更新日期:1985-04-01 00:00:00
abstract::Frame-shifted amyloid precursor protein (APP(+1)), which has a truncated out-of-frame C-terminus, accumulates in the neuropathological hallmarks of patients with Alzheimer's disease pathology. To study a possible involvement of APP(+1) in the pathogenesis of Alzheimer's disease, we expressed APP695 and APP(+1) in the ...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2004.02528.x
更新日期:2004-08-01 00:00:00
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journal_title:Journal of neurochemistry
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journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1998.70052038.x
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abstract::Tau pathologically aggregates in Alzheimer's disease, and evidence suggests that reducing tau expression may be safe and beneficial for the prevention or treatment of this disease. We sought to examine the role of the 3'-untranslated region (3'-UTR) of human tau mRNA in regulating tau expression. Tau expresses two 3'-...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
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abstract::Neuroactive steroid family includes molecules synthesized in peripheral glands (i.e., hormonal steroids) and directly in the nervous system (i.e., neurosteroids) which are key regulators of the nervous function. As already reported in clinical and experimental studies, neurodegenerative diseases affect the levels of n...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/jnc.12745
更新日期:2014-08-01 00:00:00
abstract::The lack of effective therapies for neurodegenerative disorders is one of the most relevant challenges of this century, considering that, as the global population ages, the incidence of these type of diseases is quickly on the rise. Among these disorders, synucleinopathies, which are characterized by the abnormal accu...
journal_title:Journal of neurochemistry
pub_type: 杂志文章,评审
doi:10.1111/jnc.13529
更新日期:2016-10-01 00:00:00
abstract::We report on the expression of ionotropic glutamate receptor subunits in primary neuronal cultures from rat cortex, hippocampus and cerebellum and of metabotropic glutamate (mGlu) receptor subtypes in these neuronal cultures as well as in cortical astroglial cultures. We found that the NMDA receptor (NR) subunits NR1,...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.2001.00369.x
更新日期:2001-06-01 00:00:00
abstract::We have investigated the molecular mechanisms of neurotrophin-mediated cell survival in HT22 cells, a murine cell line of hippocampal origin, expressing the brain-derived neurotrophic factor (BDNF) receptor TrkB as well as the TrkB.T1 splice variant. Stimulation with BDNF protected HT22-TrkB cells, but not HT22-TrkB.T...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.2003.02255.x
更新日期:2004-03-01 00:00:00
abstract::In contrast to brain, the sciatic nerve concentration of vitamin E in rats increased rapidly during the postnatal period (approximately fivefold between days 1 and 8), then decreased dramatically (about twofold between days 8 and 30), and further decreased slowly between days 30 and 60 and remained constant up to 2 ye...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.1990.tb04917.x
更新日期:1990-06-01 00:00:00
abstract::During CNS injury and diseases, nitric oxide (NO) is released at a high flux rate leading to formation of peroxynitrite (ONOO(*)) and other reactive nitrogenous species, which nitrate tyrosines of proteins to form 3-nitrotyrosine (3NY), leading to cell death. Previously, we have found that motor neurons exposed to low...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/j.1471-4159.2009.05884.x
更新日期:2009-04-01 00:00:00
abstract::The pentameric subunit composition of a large population (36%) of the cerebellar granule cell GABAA receptors that show diazepam (or clonazepam)-insensitive [3H]Ro 15-4513 binding has been determined by immunoprecipitation with subunit-specific antibodies. These receptors have alpha 6, alpha 1, gamma 2S, gamma 2L, and...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.1994.63010371.x
更新日期:1994-07-01 00:00:00
abstract::Aggregate-prone mutant proteins, such as α-synuclein and huntingtin, play a prominent role in the pathogenesis of various neurodegenerative disorders; thus, it has been hypothesized that reducing the aggregate-prone proteins may be a beneficial therapeutic strategy for these neurodegenerative disorders. Here, we ident...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1111/jnc.12672
更新日期:2014-06-01 00:00:00
abstract::Urotensin-II (U-II), a peptide with multiple vascular effects, is detected in cholinergic neurons of the rat brainstem and spinal cord. Here, the effects of U-II on [Ca2+]i was examined in dissociated rat spinal cord neurons by fura 2 microfluorimetry. The neurons investigated were choline acetyltransferase-positive a...
journal_title:Journal of neurochemistry
pub_type: 杂志文章
doi:10.1046/j.1471-4159.2002.01196.x
更新日期:2002-11-01 00:00:00