Abstract：
:In the present study we investigated the effect of electrolytic lesion of the medial septal area (MSA) on the pressor and dipsogenic response to cholinergic activation and angiotensin II (ANGII) injection into the subfornical organ (SFO) in rats. In addition the effect of MSA lesion on the natriuresis, kaliuresis and diuresis after cholinergic activation of the SFO was also investigated. Sham- and MSA-lesioned rats with a stainless steel cannula implanted into the SFO was used. The injection of ANGII (12 ng) into the SFO in sham rats produced pressor (24 +/- 2 mmHg) and dipsogenic (9.6 +/- 1.1 ml/h) responses. MSA lesion, both acute (2-6 days) and chronic (15-19 days), reduced the pressor (14 +/- 2 mmHg) and dipsogenic (2.7 +/- 1 ml/h) responses to ANGII into SFO. The injection of the cholinergic agonist carbachol (2 nmol) into the SFO in sham rats produced pressor (48 +/- 4 mmHg), dipsogenic (10 +/- 1.2 ml/h), natriuretic (457 +/- 58 microEq/2 h) and kaliuretic (249 +/- 16 microEq/2 h) responses. Acute, but not chronic MSA lesion reduced the pressor (27 +/- 3 mmHg), natriuretic (198 +/- 55 microEq/2 h) and kaliuretic (128 +/- 16 microEq/2 h) responses to carbachol into SFO. No change in the dipsogenic response to carbachol into the SFO was observed in MSA-lesioned rats. Antidiuresis after carbachol was observed only in MSA-lesioned rats. The present results show that the MSA plays a role on the pressor, natriuretic and kaliuretic responses to cholinergic activation of the SFO in rats and on the pressor and dipsogenic responses to ANGII into the same area.(ABSTRACT TRUNCATED AT 250 WORDS)
journal_name
Brain Res Bulljournal_title
Brain research bulletinauthors
Colombari DS,Haibara AS,Camargo LA,Saad WA,Renzi A,DeLuca LA Jr,Menani JVdoi
10.1016/0361-9230(94)90191-0subject
Has Abstractpub_date
1994-01-01 00:00:00pages
249-54issue
3eissn
0361-9230issn
1873-2747pii
0361-9230(94)90191-0journal_volume
33pub_type
杂志文章abstract：:Waxing and waning electrographic responses (augmenting) and primary evoked responses could be induced in restricted regions of hippocampus, thalamus, and skeletal muscle by bipolar, low-frequency (7-10 Hz), low-amplitude (35 mV-4V) stimulation of selected sites within the hippocampus or thalamus of rabbits. Induction ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(77)90003-x
更新日期：1977-03-01 00:00:00
abstract：:Fetal mouse raphe and hippocampal tissue (from embryos with crown-rump length (CRL) 13-16 mm) was transplanted into adult and aged isogenetic mice to study the growth of serotonergic fibers between host and donor tissue. A specific antibody against serotonin (5-HT) was used to immunocytochemically visualize 5-HT conta...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(81)90122-2
更新日期：1981-12-01 00:00:00
abstract：:The role of several hippocampal innervations in the sensitivity to barbital-induced narcosis was studied in selected mice strains. The outbred and inbred mouse strains HS/lgb, SABRA/HUC, C57BL, CBA/LAC, and BALB/c were tested for barbital-induced sleep (315 mg/kg). The relatively short sleeping HS/lbg (HS) and the lon...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(95)00077-r
更新日期：1995-01-01 00:00:00
abstract：:The effects of zinc, the N-methyl-D-aspartate glutamate receptor inhibitor, were studied in mice and rats using the forced swim test. Zinc (ZnSO4) in a dose of 30 mg/kg and imipramine (30 mg/kg), reduced the immobility time in the forced swim test in both species. Moreover, combined treatment in this test with zinc an...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(01)00473-7
更新日期：2001-05-15 00:00:00
abstract：:beta-Amyloid and related peptides are components of the neurofibrillary tangles found in the brains of patients with Alzheimer's disease and have been suggested to be directly involved in the pathophysiology of that condition. It is unclear whether the amyloid deposited in the brain arises from the peripheral circulat...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(91)90215-6
更新日期：1991-12-01 00:00:00
abstract：:A preembedding double immunostaining technique using antibodies against methionine-enkephalin and tyrosine hydroxylase was used to study synaptic relations between enkephalinergic and catecholaminergic neurons in the area postrema of the rat at the electron microscopic level. The large nuclei-containing cell bodies of...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(95)02016-k
更新日期：1995-01-01 00:00:00
abstract：:Developmental changes in the control of neurite extension by extracellular factors can be examined by utilizing cultures of neurons from various aged embryos. Several conditioned media and tissue extracts were added to cultures of chick embryo retinal neurons on collagen substrates for 1, 3 and 5 days in vitro. Neurit...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(87)90112-2
更新日期：1987-04-01 00:00:00
abstract：:Every year, a large number of infants and young children worldwide are administered general anesthesia. Whether general anesthesia adversely affects the intellectual development and cognitive function of children at a later date remains controversial. Many animal experiments have shown that general anesthetics can cau...
journal_title：Brain research bulletin
pub_type： 杂志文章,评审
doi：10.1016/j.brainresbull.2020.08.003
更新日期：2020-11-01 00:00:00
abstract：:The entopeduncular nucleus (EPN), as the medial part of the globus pallidum, has been considered the efferent structure of the striatum. Based on this, we decided to study its possible somatosensory projections and the electrophysiological relationship with the caudate nucleus (CN). Radial nerve stimulation produced e...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(81)80050-0
更新日期：1981-03-01 00:00:00
abstract：:The distribution of 125I-alpha-bungarotoxin (alpha-BTX), a putative nicotinic cholinergic receptor ligand was studied both in vitro and in vivo in the suprachiasmatic nucleus (SCN), anterior hypothalamic area (AHA), and supraoptic nucleus (SON) of the hypothalamus. For in vitro studies 20 micron frozen frontal section...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(86)90139-5
更新日期：1986-05-01 00:00:00
abstract：:After spinal cord injury (SCI) of the cat or rat neuronal centres below the level of lesion exhibit plasticity that can be exploited by specific training paradigms. In individuals with complete or incomplete SCI, human spinal locomotor centers can be activated by appropriate afferent input. This includes to facilitate...
journal_title：Brain research bulletin
pub_type： 杂志文章,评审
doi：10.1016/S0361-9230(08)00410-3
更新日期：2009-01-15 00:00:00
abstract：:The effects of chronic administration of delta 9-tetrahydrocannabinol (delta 9-THC) on the plasma and brain catecholamine (CA) levels were measured using high performance liquid chromatography-electrochemical detection (LC-EC) system. Intact male rats were injected daily with vehicle (50 microliter oil) or with delta ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(85)90179-0
更新日期：1985-01-01 00:00:00
abstract：:The assumption was made that investigatory behaviors (i.e., ano-genital and general body sniffing) of a female conspecific by a mature male rat, has positive hedonic characteristics. Because reduced interest in pleasurable events (i.e., anhedonia) is diagnostically related to depressive behavior, the hypothesis was ad...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(00)00362-2
更新日期：2000-12-01 00:00:00
abstract：:Considerable evidence exists for an involvement of serotonergic mechanisms in the control of alcohol consumption. In the present study, an extensive 5-hydroxytryptamine (5-HT3) receptor autoradiographical investigation was performed using two genetically selected rat strains, alcohol preferring (P) and Alko alcohol (A...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(98)00016-1
更新日期：1998-07-01 00:00:00
abstract：:Mammals and birds are the only animals that exhibit high-amplitude slow-waves (SWs) in the electroencephalogram during sleep. The SWs that characterize slow-wave sleep (SWS) in mammals and birds reflect the large-scale synchronization of slow neuronal activity. In mammals, this synchronization is dependent upon the hi...
journal_title：Brain research bulletin
pub_type： 评论,杂志文章
doi：10.1016/j.brainresbull.2007.02.010
更新日期：2007-05-30 00:00:00
abstract：:Reticulons (RTNs) are a group of membrane-bound proteins that are dominantly localized to the endoplasmic reticulum (ER). RTN1-C, one isoform of RTNs highly expressed in the brain, has been shown to mediate neuronal injury in cerebral ischemia models. The aim of this study was to investigate the role of RTN1-C in an i...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2018.11.026
更新日期：2019-03-01 00:00:00
abstract：:Here we asked if insulin activation of the nucleus accumbens in vitro is reflected by an increase in (3)H-deoxyglucose ([(3)H]DG) uptake, thus subserving a new model to study molecular mechanisms of central insulin actions. Additionally, we investigated the dependence of this insulin effect on endocannabinoids and cor...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2016.05.009
更新日期：2016-06-01 00:00:00
abstract：:The effects of streptozotocin-induced (STZ) diabetes on the release of gonadotropins was studied in female rats. In the first experiment, rats were ovariectomized and 2 days later were injected with STZ. Three weeks later rats were treated with estrogen and progesterone and blood samples were taken via intraatrial can...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(93)90207-r
更新日期：1993-01-01 00:00:00
abstract：:Anatomical, lesion and pharmacological data pertaining to intracranial self-stimulation are reviewed in the context of multiple independent substrates of brain-stimulation reward. Subsystems related to chemosensitive pathways, motor control and mood are identified. Forebrain dopamine pathways are recognized to be impo...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(84)90189-8
更新日期：1984-02-01 00:00:00
abstract：:A wealth of previous studies reported pathological alterations in extrahippocampal regions in mesial temporal lobe epilepsy. Previous experimental findings have also demonstrated that the entorhinal cortex and the neocortex are damaged in different animal models of acute limbic seizures. The present study was aimed at...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(02)00811-0
更新日期：2002-08-15 00:00:00
abstract：:The ontogeny of sensorimotor behaviors of albino rats were evaluated from birth through adulthood (Experiment 1). Sensorimotor behaviors (e.g., visual and tactile orientation, forelimb and hindlimb hopping, righting reflexes) achieved mature (adultlike) characteristics at various ages during ontogeny and a rostral-cau...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(77)90052-1
更新日期：1977-11-01 00:00:00
abstract：:gamma-Aminobutyric acid (GABA) is considered a major inhibitory neurotransmitter in the generation of presynaptic inhibition at central terminals of primary afferent fiber (PAF), while it has also been established that nitric oxide (NO) may sensitize the terminals of nocisponsive PAFs and enhance neuropeptide release,...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(01)00500-7
更新日期：2001-06-01 00:00:00
abstract：:The Tac4 gene-derived hemokinin-1 (HK-1) is present in pain-related regions and activates the tachykinin NK1 receptor, but with binding site and signaling pathways different from Substance P (SP). NK1 receptor is involved in nociception, but our earlier data showed that it has no role in chronic neuropathic hyperalges...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2019.01.015
更新日期：2019-04-01 00:00:00
abstract：:The effects of two diketopiperazines, Cyclo (His-Pro) (CHP) and Cyclo (Asp-Phe) (CAP), on striatal extracellular levels of dopamine (DA), dihydroxyphenylacetic acid (DOPAC), homovanillic acid (HVA), and 5-hydroxyindoleacetic acid (5-HIAA) were examined using in vivo microdialysis in anaesthetized rats. Treatment with ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(93)90171-7
更新日期：1993-01-01 00:00:00
abstract：:This paper provides an introduction to a special issue dedicated to the action of environmental estrogens on neural circuits and behavior. The problem of endocrine disrupting chemicals (EDCs), i.e. chemicals that have the capacity to interfere with the endocrine system, has gained increasing attention as it has become...
journal_title：Brain research bulletin
pub_type： 杂志文章,评审
doi：10.1016/j.brainresbull.2005.01.007
更新日期：2005-04-15 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
abstract：:Arachidonic acid [20:4(N-6)] has been implicated in neurological damage induced by cerebral ischaemia. Membrane arachidonate concentrations can be reduced by changes in dietary fat intake. Therefore, in the present study, we have investigated the effects of N-3 fatty acid supplementation on neuronal damage induced by ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(93)90180-j
更新日期：1993-01-01 00:00:00
abstract：:Electrical stimulation of the periaqueductal gray of the rat's midbrain analgesia leads to an increase in the number of artificial pulmonary metastases from the Walker 256 tumor. In an effort to investigate the influence of the pain suppression system and its associated peptides on this phenomenon, we activated the pa...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(84)90164-3
更新日期：1984-05-01 00:00:00
abstract：:Various reports have suggested that penehyclidine hydrochloride (PHC), a new cholinergic antagonist, exhibits a variety of biological actions such as anti-tumor and cardioprotective effects. This study aimed to investigate the effects of PHC on cerebral ischemia/reperfusion (I/R) injury and evaluate whether the c-Jun ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2016.01.008
更新日期：2016-03-01 00:00:00
abstract：:The effects of changes in ambient and central temperature, amines, PGEu and pyrogen were investigated with respect to the mechanism of Na+-Ca++ ratio in the posterior hypothalamus of the unrestrained cat. Guide tubes were implanted bilaterally above the posterior hypothalamic area of 23 cats so as to accommodate push-...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(76)90102-7
更新日期：1976-05-01 00:00:00
