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 aminoguanidine, and a prostaglandin H synthase inhibitor, indomethacin, on pial arteriolar responses to TNF alpha were determined. In addition, cortical cerebrospinal fluid (CSF) prostanoids (PGE2 and 6-keto-PGF1 alpha) and cyclic nucleotides (cAMP and cGMP) were examined as indices of local cerebral production. Diameters of pial arterioles were recorded every 5 min for 30 min following topical infusion of TNF alpha under the window. CSF was sampled at the end of the 30-min recordings. TNF alpha (10(-8) and 10(-7) M) caused dilation of pial arterioles and increased CSF prostanoids and cyclic nucleotides. Indo-methacin blocked TNF alpha-induced vasodilation and the increase of prostanoids and cAMP, but not of cGMP. L-NNA and amino-guanidine blocked TNF alpha-induced vasodilation. Both inhibitors attenuated TNF alpha-induced prostanoid increase. Aminoguanidine blocked TNF alpha-induced increased cGMP and attenuated the increase in cAMP. These results are consistent with the hypothesis that TNF alpha increases cAMP via prostanoid synthesis. They also suggest that TNF alpha increases cGMP through nitric oxide synthesis, which, in addition, may promote production of prostanoids and, thus, cAMP.
journal_name
Brain Res Bulljournal_title
Brain research bulletinauthors
Shibata M,Parfenova H,Zuckerman SL,Leffler CWdoi
10.1016/0361-9230(95)02142-6subject
Has Abstractpub_date
1996-01-01 00:00:00pages
241-7issue
4eissn
0361-9230issn
1873-2747pii
0361-9230(95)02142-6journal_volume
39pub_type
杂志文章abstract：:It has been suggested that the stimulation of the secretion of PRL by the alpha 2 adrenergic receptor antagonists (yohimbine, piperoxane) results from blockade of an inhibitory influence imposed on PRL release by the central alpha 2 receptors (7, 15). Our present results do not support these conclusions for the follow...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(89)90184-6
更新日期：1989-12-01 00:00:00
abstract：:The topographical distribution of glutamate uptake, GABA uptake, and GAD activity was studied in caudal, intermediate and rostral areas of the nucleus of the solitary tract (NTS), dorsal motor nucleus of the vagus (DMN) and the of the solitary tract (NTS), dorsal motor nucleus of the vagus (DMN) and the hypoglossal nu...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(85)90176-5
更新日期：1985-01-01 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：:Norepinephrine (NE) and dopamine (DA) levels and turnover were measured in 17 discrete brain regions of Swiss-Webster (NIH) mice made aggressive by prolonged isolation. The NE steady state level was significantly lower in olfactory tubercle and substantia nigra and significantly higher in the septal area of the aggres...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(80)90287-7
更新日期：1980-01-01 00:00:00
abstract：:Rats with chronic hippocampal electrode implants had afterdischarges induced with electrical stimulus intensities of 115, 200, and 800% of a previously determined threshold. Afterdischarge duration, postictal EEG depression duration, and the duration of postictal electrical hypoexcitability were assessed. After discha...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(80)90254-3
更新日期：1980-09-01 00:00:00
abstract：:A recent in vitro electrophysiological analysis combined with anatomical approach suggests that a potential disinhibitory mechanism involving somatostatin (SST), which is released by interneurons in the superficial dorsal horn, contributes to nociceptive transmission (Yasaka et al., 2010); however, whether this mechan...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2013.11.008
更新日期：2014-01-01 00:00:00
abstract：:Individual cardiac nerves from which stimulation elicited cardioinhibition (bradycardia and negative inotropism) were identified in 24 of 38 dogs. Subsequently, 3-25 microliters of 30% horseradish peroxidase (HRP) were injected into an identified cardiac nerve. After a 3-day survival period, the medulla oblongata was ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(82)90073-9
更新日期：1982-04-01 00:00:00
abstract：:Recent investigations of the nucleus ambiguus (NA) have attempted to identify motoneurons associated with the branchiomeric muscles of the larynx and pharynx. However, relatively little attention has been directed to the levator veli palatini muscle (LVP) which is critical in respiration, deglutition and eustachian tu...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(83)90165-x
更新日期：1983-09-01 00:00:00
abstract：:The conditions under which amyloid is toxic to primary rat hippocampal neurons were investigated. Synthetic A beta (1-42) peptide elicited neurotoxic activity following "aging" for 7 to 14 days at 37 degrees C in Modified Eagles Media. Neurotoxicity included decreases in neurite length, cell number, and a loss in 3-[4...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(95)02034-x
更新日期：1995-01-01 00:00:00
abstract：:We propose that separate sensory and hedonic representations exist in each of the primary structures of the somatosensory system, including brainstem, thalamic and cortical components. In the dorsal horn of the spinal cord, the hedonic representation, which consists primarily of nociceptive-specific, wide dynamic rang...
journal_title：Brain research bulletin
pub_type： 杂志文章,评审
doi：10.1016/s0361-9230(02)00783-9
更新日期：2002-07-01 00:00:00
abstract：:Seven benzodiazepine-receptor ligands of the beta-carbolines' group were administered IP in Wistar rats from (1) a strain displaying spontaneous petit mal-like seizures (PMLS) characterized by spike and wave discharges (SWD) and, (2) a strain where no seizure is ever observed (NS). Five different types of effects were...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(87)90101-8
更新日期：1987-09-01 00:00:00
abstract：:Stroke is one of the leading causes of mortality and morbidity worldwide. Due to its poor prognosis, there is a major negative impact on the patients and their family's life quality. However, despite the severity of this pathology tissue plasminogen activator (tPA) is the only FDA approved treatment for ischemic strok...
journal_title：Brain research bulletin
pub_type： 杂志文章,评审
doi：10.1016/j.brainresbull.2019.07.015
更新日期：2019-10-01 00:00:00
abstract：:The influence of nodose ganglionectomy or transection of the peripheral branches of the afferent vagus nerve on choline acetyltransferase (ChAT) activity in the nucleus tractus solitarius (NTS) was studied. ChAT activity was reduced in the microdissected caudal and intermediate portions of the NTS in vagotomized as we...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(83)90139-9
更新日期：1983-04-01 00:00:00
abstract：:Rats were unilaterally deprived of odor stimulation by surgically sealing one naris 1, 30 or 60 days after birth. Thirty days later the laminar volumes of the olfactory bulb ipsilateral to the occluded naris were compared with those ipsilateral to the normal side. Deprivation from days 1-30 resulted in approximately 2...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(83)90121-1
更新日期：1983-11-01 00:00:00
abstract：:All the opiate-like peptides we tested (Met-enkephalin, (D-Ala2)-Met-enkephalin-NH2, beta-endorphin, (D-Ala2)-beta-endorphin, (D-Ala2)-alpha-endorphin, (D-Ala2)-gamma-endorphin) were capable of reducing distress vocalizations (DV's) in socially-isolated chicks when injected into the vicinity of the fourth ventricle in...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(78)90014-x
更新日期：1978-11-01 00:00:00
abstract：:The effects of amygdaloid norepinephrine depletion by 6-hydroxydopamine on changes in corticotropin releasing factor-41 (CRF-41) and serum adrenocorticotropic hormone (ACTH) and corticosterone levels, following neural stimuli were investigated. In intact animals, photic or acoustic stimulation caused CRF-41 depletion ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(96)00174-8
更新日期：1996-01-01 00:00:00
abstract：:There is some experimental evidence that the pallial areas of a fish's brain are involved in distincted learning functions. Recently published data suggest that the medial pallium is essential for avoidance learning and the lateral pallium is crucial for spatial learning and is also involved in temporal aspects of the...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2009.05.008
更新日期：2009-08-14 00:00:00
abstract：:Peroxynitrite (ONOO-) is a strong biological oxidant formed by the diffusion-limited reaction of nitric oxide (NO-) and superoxide anion (O2-). It has long been theorized that peroxynitrite generation could be the cause in a number of pathological conditions ranging from atherosclerosis to inflammatory, autoimmune, he...
journal_title：Brain research bulletin
pub_type： 杂志文章,评审
doi：10.1016/j.brainresbull.2017.05.008
更新日期：2017-07-01 00:00:00
abstract：:The hypothalamic suprachiasmatic nucleus (SCN) of the ring dove was demonstrated by the presence of labeled retinal processes. Horseradish peroxidase or tritiated proline were injected into the vitreous of the eye and were transported in an anterograde manner to label the SCN. After identifying the retinorecipient are...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(83)90040-0
更新日期：1983-05-01 00:00:00
abstract：:To determine whether or not prolactin, as well as ACTH, was involved in the control of adrenal weight and steroid release, lesions in the median eminence which had previously resulted in impaired steroid release and atrophy of the adrenal were placed in animals in which the plasma prolactin was allowed to rise as a re...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(87)90066-9
更新日期：1987-11-01 00:00:00
abstract：:Cultures of endothelial cells (EC) derived from human (autopsy) and canine brain microvessels were characterized with respect to growth, morphology, and biochemical features. The endothelial nature of these cells was confirmed by analyses of angiotensin-converting enzyme activity, Factor VIII-related antigen, and ultr...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(88)90047-0
更新日期：1988-11-01 00:00:00
abstract：:To elucidate the role of the medial basal hypothalamus (MBH) in stress-induced prolactin (Prl) release, adult male rats which had received monosodium glutamate (MSG 4 mg/g) on alternate days for the first 10 days of life were subjected to ether stress for 2 min. Blood samples were drawn at 0, 15, 30 and 60 min after e...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(83)90068-0
更新日期：1983-01-01 00:00:00
abstract：:Multiple lines of investigation have explored the role of dopaminergic systems in mental depression. Chronic treatment with antidepressant drugs has been reported to alter dopaminergic neurotransmission, most notably a sensitization of behavioural responses to agonists acting at D2/D3 dopamine receptors within the nuc...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2007.05.004
更新日期：2007-09-14 00:00:00
abstract：:A growing body of evidence has pointed to the NMDA receptor antagonists as a potential therapeutic target for the treatment of major depression. The present study was aimed to evaluate behavioural and molecular effects of the acute and chronic treatment with memantine and imipramine in rats. To this aim, rats were acu...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2009.11.013
更新日期：2010-04-05 00:00:00
abstract：:Since years there is a hotly discussed dispute whether event-related potentials are either generated by an evoked component or by resetting of ongoing phase. We argue that phase-reset must not be proven in order to accept the general involvement of phase in ERP-generation as it is only one of several possible mechanis...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2011.03.025
更新日期：2011-07-15 00:00:00
abstract：:Regeneration following bilateral optic nerve crush was studied in groups of goldfish housed either on a standard diurnal cycle or under total light deprivation. Unoperated fish were included in each deprivation condition. Regeneration was only slightly delayed in the surgical group housed under light deprivation (68-8...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(82)90034-x
更新日期：1982-01-01 00:00:00
abstract：:Walker 256 carcinosarcoma cells produce subpleural pulmonary metastases when given intravenously to the Sprague-Dawley rat. The number of metastases increases when the rat is given morphine subsequent to the tumor load. The increase in the number of metastases can be blocked be pretreatment with the opiate antagonist ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(86)90057-2
更新日期：1986-03-01 00:00:00
abstract：:Vestibular-evoked myogenic potentials (VEMPs), elicited by acoustic stimulation, have been proposed in the assessment of the vestibulo-cervical reflex pathways. The procedure has been previously validated in several otovestibular disorders. The aim of this study was to investigate patients affected by multiple scleros...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(02)00842-0
更新日期：2002-10-15 00:00:00
abstract：:The primary objective of this study was to determine whether pretreatment with kappa- and delta-opioid agonists potentiates naltrexone-induced suppression of water consumption following 24h of deprivation. This study also examined the temporal effects of agonist-induced antinociception using the tail-flick and hot-pla...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2008.04.002
更新日期：2008-08-15 00:00:00
abstract：:The question of whether neurons versus fibers of passage in the medial prefrontal cortex (MPC) are essential in maintaining self-stimulation of this same area of the brain was examined. Rats were prepared with electrode-guide cannulae implanted stereotaxically to rest within MPC. A micro-injection of (KA), 10 nmol/1.0...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(85)90141-8
更新日期：1985-08-01 00:00:00
