Abstract：
:Preprodynorphin and preproenkephalin are protein precursors from which are derived two classes of opioid neurotransmitter peptides. Dynorphin A((1-17)) is produced by proteolytic processing of prodynorphin, and processing of proenkephalin yields the enkephalin peptides. We report here on the isolation and sequencing of multiple clones for these two mRNAs from a cDNA library. Two cDNA clones of preprodynorphin contained the full-length sequence (2.35 kb) with the primary structure predicted from the guinea pig gene sequence. In contrast, one clone encoded the full-length sequence but also an additional 192 nt at the 5' end. This sequence has high homology to the 5' flanking region of the human preprodynorphin gene, and RNase protection assays demonstrated that in addition to a primary initiation site, transcription of this mRNA is initiated at several sites 160-190 nt 5' with respect to the primary site. This difference may alter translational efficiency or mRNA stability. The sequence of preproenkephalin cDNA clones confirmed the structure predicted from the gene sequence. One clone, however, contained sequences encoded by exons 2 and 3, and initiated within the first intron (intron A) of the gene. We used RNase protection mapping to assess the abundance in the brain and pituitary of preproenkephalin transcripts that initiate within intron A. These studies confirmed that the primary transcription start site is 28 nucleotides downstream from the TATAA site, and that intron A sequences are not present in significant amounts in these tissues.
journal_name
Brain Res Bulljournal_title
Brain research bulletinauthors
LaForge KS,Nyberg F,Kreek MJdoi
10.1016/j.brainresbull.2004.01.008keywords:
subject
Has Abstractpub_date
2004-03-15 00:00:00pages
119-26issue
2eissn
0361-9230issn
1873-2747pii
S0361923004000425journal_volume
63pub_type
杂志文章abstract：:Chronic social stress and/or pharmacological treatments differentially modulate the expression of c-Fos, a marker of neuronal activity, in subregions of the rat brain. Here, we examined the effect of the atypical antipsychotic Clozapine (Clz) (20 mg/kg/day for 3 weeks) on the neuronal activation pattern of c-Fos prote...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2019.07.005
更新日期：2019-10-01 00:00:00
abstract：:Inhibition of glycolysis and fatty acid oxidation by combined treatment with 2-deoxyglucose (2DG) and methyl palmoxirate, or inhibition of glycolysis and lipolysis by combined treatment with 2DG and nicotonic acid synergistically increased food intake in rats. Methyl palmoxirate treatment alone increased food intake i...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(86)90099-7
更新日期：1986-12-01 00:00:00
abstract：:The presence of glial cell line-derived neurotrophic factor (GDNF) is described within specific regions of the adult rat pituitary gland. Immune staining methods revealed a small number of GDNF-immunopositive cells in the anterior lobe, and in areas of the neural lobe, while no immunoreactive endocrine cells were obse...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(00)00242-2
更新日期：2000-05-15 00:00:00
abstract：:Neutral, magnesium-stimulated sphingomyelinase and acid sphingomyelinase activities in the neurohypophysis, adenohypophysis and cerebrum of rats given 2.25% NaCl drinking water for 7 or 14 days were compared with the same enzyme activities in the tissues of control animals allowed free access to distilled drinking wat...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(83)90028-x
更新日期：1983-05-01 00:00:00
abstract：:Neural progenitors in the subgranular zone of the hippocampal formation form a continuously proliferating cell population, generating new granule neurons throughout adult life. Between 10 days and 1 month after their formation, many of the newly generated cells die. The present study investigated whether a partial les...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2005.06.018
更新日期：2005-09-30 00:00:00
abstract：:Baroreceptor input plays a critical role in body fluid balance and the endocrine response to NaCl consumption [25]. Experiments were performed to characterize the alterations in salt intake that are seen after baroreceptor denervation. Using chronically baroreceptor denervated (SAD) or control (CON) male Sprague-Dawle...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(96)00234-1
更新日期：1997-01-01 00:00:00
abstract：:To investigate the effect of stimulus presentation rate on the activity of primary somatosensory cortex, we performed echo-planar functional magnetic resonance imaging using a 1.5-tesla magnetic resonance system. Eight right-handed normal volunteers underwent functional magnetic resonance imaging during somatosensory ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(01)00438-5
更新日期：2001-01-15 00:00:00
abstract：:Three sets of experiments have been conducted that suggest that adrenal glucocorticoids play a role in the long-term control of intake and in dietary preferences. First, obesity is dependent upon glucocorticoid-modulated metabolic pathways. Surgical or pharmacological manipulations in obese animals that eliminate or d...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(91)90136-8
更新日期：1991-09-01 00:00:00
abstract：:The influence on pain processing caused by destruction or stimulation of the dorsal reticular nucleus (DRt) was studied using the tail-flick and the increasing temperature hot-plate tests. Lesions of the DRt were obtained by injecting quinolinic acid (180 nmol/microliters) unilaterally or bilaterally, and nociceptive ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(95)02027-6
更新日期：1996-01-01 00:00:00
abstract：:The effects of chemically and electrically-induced convulsions on the binding of [3H]Ro 5-4864 to peripheral benzodiazepine receptors (PBR) was studied in both peripheral tissues and the central nervous system (CNS). Acute, maximal electroshock (MES) increased the density of PBR in mouse cerebral cortex as evidenced b...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(87)90158-4
更新日期：1987-07-01 00:00:00
abstract：:Endogenous opioids (EO) probably do not modulate endotoxin (LPS)- or interleukin 1 (IL1)-induced fever because naloxone does not prevent its development. Yet, increases in CSF and hypothalamic levels of beta-endorphin have been reported during LPS-and IL1-induced fevers. Since IL1 also reduces the specific binding of ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(85)90210-2
更新日期：1985-12-01 00:00:00
abstract：:The present study investigates the protective effects of electroacupuncture (EA) application on cardiac function, while simultaneously exploring the underlying neurobiological mechanisms, in rats that have experienced thoracic surgery-induced stress. Mean arterial and left intraventricular pressures were monitored as ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2012.06.008
更新日期：2012-10-01 00:00:00
abstract：:The use of a new and very sensitive immunohistochemical method, combined with intracerebral injections of colchicine, has allowed us to show that a number of nerve cell bodies immunoreactive for Met-enkephalin are present in several mesencephalic nuclei of the rat, including the different subdivisions of the substanti...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(91)90275-o
更新日期：1991-07-01 00:00:00
abstract：:Until now, economic theory has not systematically integrated the influence of emotions on decision-making. Since evidence from neuroscience suggests that decision-making as hypothesized in economic theory depends on prior emotional processing, interdisciplinary research under the label of "neuroeconomics" arose. The k...
journal_title：Brain research bulletin
pub_type： 杂志文章,评审
doi：10.1016/j.brainresbull.2005.07.006
更新日期：2005-11-15 00:00:00
abstract：:This study investigated the effect of green tea (GT) on short and long term declarative memory and oxidative damage induced by transient ischemia-reperfusion (IR) and intracerebral hemorrhage (ICH) in rats. Male Wistar rats were divided into 8 groups of 10 according the stroke type induced: Sham IR, Sham IR+GT, IR, IR...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2017.03.007
更新日期：2017-05-01 00:00:00
abstract：:The effects of autophagy on neuronal damage can be positive or detrimental negative. Through establishing a model of fetal rat cortical neuron hydraulic shock injury, dipotassium bisperoxo (picolinoto) oxovanadate (V) [bpv(pic)] was used to inhibit PTEN at different time points post-injury and autophagy level after ne...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2020.10.008
更新日期：2020-12-01 00:00:00
abstract：:This study aimed to assess whether changes in the patterns of local field potential (LFP) oscillations of the subthalamic nucleus (STN) underlie to the clinical improvement within 60 s after turning off subthalamic DBS. We studied by spectral analysis the STN LFPs recorded in 13 nuclei from 7 patients with Parkinson's...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2005.11.012
更新日期：2006-03-31 00:00:00
abstract：:The nucleus retroambiguus (NRA) is a group of neurons, located laterally in the caudal medulla oblongata. The NRA is thought to modulate abdominal pressure in the framework of respiration, vomiting, vocalization, probably parturition, and, in all likelihood mating behavior. The NRA exerts this control through its proj...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2005.08.011
更新日期：2006-01-15 00:00:00
abstract：:Fetal ventromedial hypothalamic (VMH) tissue was transplanted into or around the third ventricle of adult Fischer 344 rats to determine if transplanted VMH tissue could reverse the hyperphagia and obesity produced by bilateral VMH electrolytic lesions. Host VMH-lesioned rats received stereotaxic implants of 13 to 19 p...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(90)90291-7
更新日期：1990-01-01 00:00:00
abstract：:Somatostatin immunoreactive (SOM-I) perikarya were first observed in the ventral horn at E12, in the presumptive intermediate gray area at E14, and in the alar plate of the rostral spinal cord at E14. In general, after their initial appearance, their density increased and then decreased during development. A moderate ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(88)90125-6
更新日期：1988-07-01 00:00:00
abstract：:Using immunohistochemistry for serotonin (5-HT) after administration of 5-hydroxytryptophan (5-HTP), we have demonstrated the existence of a particular group of 5-HT accumulating neurons in the posterior hypothalamus of the rat and cat. This cluster of neurons, which we termed "5-HT immunoreactive (IR) posterior hypot...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(84)90153-9
更新日期：1984-06-01 00:00:00
abstract：:Retinal injuries and diseases are major causes of human disability involving vision impairment by the progressive and permanent loss of retinal neurons. During development, assembly of this tissue entails a successive and overlapping, signal-regulated engagement of complex events that include proliferation of progenit...
journal_title：Brain research bulletin
pub_type： 杂志文章,评审
doi：10.1016/j.brainresbull.2018.10.016
更新日期：2019-09-01 00:00:00
abstract：:Three models of inducing spinal trauma in experimental animals--weight-dropping model, severance-by-knife model, and laceration-type-lesions model--are reviewed critically. Contributions by these models in understanding paraplegia in anatomical and pathological terms are brought out. Important distinctions between sub...
journal_title：Brain research bulletin
pub_type： 杂志文章,评审
doi：10.1016/0361-9230(89)90123-8
更新日期：1989-01-01 00:00:00
abstract：:The present study in piglets was designed to examine cerebrovascular effects of tumor necrosis factor-alpha (TNF alpha) and potential mechanisms involved. Anesthetized new-born pigs with closed cranial windows implanted were used. Effects of nitric oxide synthase (NOS) inhibitors, NG-nitro-L-arginine (L-NNA) and amino...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(95)02142-6
更新日期：1996-01-01 00:00:00
abstract：:Several lines of evidence have established that performance during the initial steps of acquisition on a shuttle-box avoidance task is an anxiety-mediated behavior (i.e., the differences between strains selectivity bred for emotionality; the effects of postnatal handling; the course of the corticosterone response and ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(91)90205-x
更新日期：1991-01-01 00:00:00
abstract：:Abundance of muscle spindles is most likely related to gradual recruitment and functional specialization of motor units, as well as to their fundamental role in reflex intermuscular interaction and cooperation with other sensory systems. Spindle afferents per se usually convey ambiguous kinesthetic information to the ...
journal_title：Brain research bulletin
pub_type： 评论,杂志文章
doi：10.1016/j.brainresbull.2007.12.002
更新日期：2008-03-28 00:00:00
abstract：:Glucokinase (GCK) may be involved in inflammatory pathological changes, while the P2X3 receptor in the stellate ganglia (SG) is related to diabetic cardiac autonomic neuropathy. In this study, we explored the relationship between the upregulated GCK in SG and diabetic cardiac sympathy. The expression and location of G...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2020.10.004
更新日期：2020-12-01 00:00:00
abstract：:A simple procedure for recording of diaphragmatic electromyographic activity in awake, freely behaving animals is described. This procedure produces highly stable recording of muscle activity for very long periods. Because of its ease of use, the procedure has become the technique of choice for acute recording in our ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(89)90112-3
更新日期：1989-03-01 00:00:00
abstract：:A method for bulk preparation of glomerular particles from subdivisions of the bovine cerebellum is presented. This method represents a modification of that previously reported by Hajos et al. [8], which increases the yield of glomerular protein by five-fold (5.5 mg/g wet wt) without compromising structural integrity ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(85)90025-5
更新日期：1985-05-01 00:00:00
abstract：:A continuous rhythmic discharge in the subthalamic nucleus (STN), lateral habenular nucleus, and ventral tegmental area (VTA) is associated with tremor in cats lightly anesthetized with barbiturate. The pontine raphe nuclei centralis superior and inferior also show barbiturate dependent slow wave and unitary activity....
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(76)90053-8
更新日期：1976-01-01 00:00:00
