Abstract：
:The discovery of spontaneous neuronal replacement in the adult vertebrate brain has changed the way in which we think about the biology of memory. This is because neuronal replacement is likely to have an impact on what a brain remembers and what it learns. Neuronal replacement has also changed the way in which we go about exploring new strategies for brain repair. Our new outlook on both these matters is all the more remarkable because of the pervasiveness of the earlier dogma, which for warm-blooded vertebrates relegated neurogenesis to embryonic development and, for a few neuronal classes, early postnatal life. The discovery of constant neuronal replacement in the adult brain was remarkable, too, in that it was not required by what we thought to be the logic of nervous system function. Moreover, no previous facts prepared us for it. Much of the modern theory of learning embraced the view of modifiable synapses as the key players in learning and as the repositories of memory. But if this were so, what would be the point of neuronal replacement in healthy brain tissue? In what follows, I will briefly review the work of Joseph Altman, because he was the first one to challenge the notion that new neurons were not produced in adulthood. I will then review what we know about neuronal replacement in the song system of birds, which my laboratory has studied for many years. In closing, I will offer a general theory of long-term memory that, if true, might explain why adult nervous systems constantly replace some of their neurons.
journal_name
Brain Res Bulljournal_title
Brain research bulletinauthors
Nottebohm Fdoi
10.1016/s0361-9230(02)00750-5keywords:
subject
Has Abstractpub_date
2002-04-01 00:00:00pages
737-49issue
6eissn
0361-9230issn
1873-2747pii
S0361923002007505journal_volume
57pub_type
杂志文章,评审abstract：:Creatine kinase reaction rates were measured by the magnetisation transfer technique in brains of healthy adult and aged rats and in rats with chronic cerebral ischemia and chronic ethanol intoxication. These measurements indicated that the rate constant of the creatine kinase reaction is significantly reduced in the ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(00)00405-6
更新日期：2000-11-01 00:00:00
abstract：:Obesity and high fat diets are associated with an increased prevalence of diabetes, cardiovascular disease, and hypertension. However, the mechanism(s) linking obesity and high fat diet to these metabolic and cardiovascular disorders are not fully elucidated. Leptin stimulates the formation of pro-opiomelanocortin and...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(03)00188-6
更新日期：2003-09-30 00:00:00
abstract：:The present work describes a series of experiments designed to examine the possible role of central 5-HT circuits in the control of feeding and drinking in pigeons. Acute effects (within 1 h) of intracerebroventricular (ICV) injections of 5-HT (0, 9.7, 19.4, 38.7, 77.5, 155, and 310 nmol) in 24-h food-deprived (24FD) ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(97)00199-8
更新日期：1997-01-01 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 anticonvulsant drug Diazepam (DIA-2 mg/kg b. wt), the nitric oxide (NO) donor L-Arginine (L-Arg-2000 mg/kg b. wt) and the putative nitric oxide synthase (NOS) inhibitor N(G)-Nitro-L-Arginine methyl ester (L-NAME-50 mg/kg b. wt) were used to determine the role of endogenous NO on convulsions induced by picrotoxin (...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(99)00011-8
更新日期：1999-03-01 00:00:00
abstract：:Progressive disruption of both the neuroendocrine and immune systems has been correlated with age-associated pathogenesis in patients with Alzheimer's disease and in mice lacking apolipoprotein E (ApoE). In this study, we examined neuroautoimmune and neuroendocrine activities in relation to aging and stress in ApoE-de...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(99)00052-0
更新日期：1999-06-01 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：:Adaptation of the frog, Rana temporaria, to a white background for 12 hr has resulted in an intense formaldehyde-induced fluorescence (FIF) in the neurons of the preoptic recess organ (PRO), paraventricular organ (PVO), nucleus infundibularis dorsalis (NID) and their basal processes permitting visualization of the PRO...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(82)90184-8
更新日期：1982-07-01 00:00:00
abstract：:The analysis of physiological processes in brain by position emission tomography (PET) is facilitated when images are spatially normalized to a standard coordinate system. Thus, PET activation studies of human brain frequently employ the common stereotaxic coordinates of Talairach. We have developed an analogous stere...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2005.02.033
更新日期：2005-07-15 00:00:00
abstract：:Locomotor performance of transgenic R6/2 mice carrying the Huntington's disease (HD) mutation was assessed using four different tasks, fixed speed rotarod, accelerating rotarod, Digigait and footprint test. The tasks were compared directly in age- and CAG repeat-matched R6/2 mice. Accelerating rotarod was more sensiti...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2008.10.007
更新日期：2009-03-30 00:00:00
abstract：:Our previous study demonstrated that single intrathecal (i.t.) application of fluorocitrate, a glial metabolic inhibitor, synergized electroacupuncture (EA) antagonizing behavioral hypersensitivity in complete Freund's adjuvant (CFA)-induced monoarthritic rat. To further investigate the relationship between spinal gli...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2007.07.027
更新日期：2008-01-31 00:00:00
abstract：:Nitric oxide (NO) is the main activator of the soluble guanylate cyclase (sGC)-guanosine 3'5' cyclic monophosphate (cGMP) pathway. The level of cGMP is regulated by phosphodiesterases (PDEs), which break down cGMP. It has been reported that levels of NO in the central nervous system (CNS) can greatly increase during d...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2014.04.002
更新日期：2014-05-01 00:00:00
abstract：:The contribution deals with the distribution of alkaline phosphatase and 5-nucleotidase in the medulla oblongata of Taphozous melanopogon (a Microchiroptera), for the first time. The main highlights of the study are: (1) Cranial nerve nuclei demonstrate intense activity of alkaline phosphatase, whereas except nucleus ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(79)90030-3
更新日期：1979-07-01 00:00:00
abstract：:Mutations in PLA2G6, which encodes calcium-independent phospholipase A(2) group VIA (iPLA2-VIA), underlie the autosomal recessive disorder infantile neuroaxonal dystrophy (INAD). INAD typically presents in the first year of life, and leads to optic atrophy and psychomotor regression. We have examined PLA2G6 expression...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2010.08.011
更新日期：2010-11-20 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：:Diabetes mellitus (DM) is considered the primary cause of neuropathic pain. Osthole (7-methoxy-8[3-methylpent 2-enyl]coumarin) is a component extracted from Cnidium monnieri (L.) cusson plant seeds and has anti-inflammatory and anti-oxidative properties. The aim of the present study was to investigate the effects of o...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2018.08.008
更新日期：2018-09-01 00:00:00
abstract：:Neonatal post-hemorrhagic hydrocephalus is associated with cognitive decline and a serious deterioration in the patient's quality of life. The underlying impairments to neurons are not well understood. Here, we used the method described by Cherian et al. to construct a model of hydrocephalus after intra-ventricular he...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2010.06.009
更新日期：2010-08-30 00:00:00
abstract：:Orexin/hypocretin neurons of the lateral hypothalamus/perifornical area project to a diverse array of brain regions and are responsive to a variety of psychostimulant drugs. It has been shown that orexin neurons are activated by systemic nicotine administration suggesting a possible orexinergic contribution to the eff...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2008.09.014
更新日期：2008-12-16 00:00:00
abstract：:It is known that the pituitary-adrenal responses to lipopolysaccharide and interleukin (IL)-1 are sexually dimorphic in rodents, with females having an enhanced secretion of adrenocorticotropin (ACTH) and corticosterone. This study investigated whether the ACTH and corticosterone responses to tumor necrosis factor (TN...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(01)00735-3
更新日期：2002-01-15 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：:A microscope-enlarger is described which can be used to produce 20 cm by 25 cm negatives of histological sections at magnifications up to 1,000 diameters, without loss of image quality or reduction of resolution. Standard flat-field microscope optics are used, and the apparatus is adjustable for Koehler illumination. ...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(76)90058-7
更新日期：1976-01-01 00:00:00
abstract：:The effect of pretreatment of geranylgeranylacetone (GGA), an inducer of heat shock protein (HSP) 70, on responses in sleep and core body temperature (Tcore) against sleep deprivation (SD) was examined in rats. After 3 days of GGA or vehicle injection, a 6-h period of SD was performed. During the recovery period, both...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2006.02.004
更新日期：2006-04-28 00:00:00
abstract：:After placing bilateral electrolytic lesions in the fasciculus retroflexus (FR) of the rat, the endogenous content of serotonin, glutamate and gamma-aminobutyrate (GABA) as well as choline acetyltransferase activity (ChAT) were measured in the interpeduncular nucleus (IPN) at the 7th, 28th and 120th survival days. Con...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(90)90113-e
更新日期：1990-10-01 00:00:00
abstract：:Insulin release was examined in human subjects after lingual applications of D-glucose and its anomers. A dose-dependent increase in the insulin release was noted following the application of equilibrated D-glucose consisting of 36% alpha- and 64% beta-anomer. The response was not reproduced after administration of at...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(86)90126-7
更新日期：1986-08-01 00:00:00
abstract：:Brief cerebral ischemia leads to selective neuronal necrosis (SNN), which is characterized by neuronal death with sparing of glial and vascular elements of the central nervous system. Understanding the pathophysiology of SNN may help elucidating the mechanisms and consequences of neuronal injury in humans following br...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/j.brainresbull.2008.11.005
更新日期：2009-03-16 00:00:00
abstract：:Gamma-secretase (GS) is an enzyme complex that cleaves numerous substrates, and it is best known for cleaving amyloid precursor protein (APP) to form amyloid-beta (Aβ) peptides. Aberrant cleavage of APP can lead to Alzheimer's disease, so much research has been done to better understand GS structure and function in ho...
journal_title：Brain research bulletin
pub_type： 杂志文章,评审
doi：10.1016/j.brainresbull.2016.04.019
更新日期：2016-09-01 00:00:00
abstract：:To elucidate whether pineal melatonin secretion is affected by changes in day length, we determined the concentration of melatonin in human pineal glands obtained at autopsy from 66 male subjects, aged 16-84 years over a period of 12 consecutive months. Based on the time of death, a day-night difference in pineal mela...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/s0361-9230(98)00105-1
更新日期：1998-10-01 00:00:00
abstract：:The effects of ventral amygdalofugal pathways (VAF) or stria terminalis (ST) on the hypothalamic aggressive-defense (rage) reaction were examined in fifteen cats. After bilateral electrolytic lesions of the VAF or ST, 0.5 pmol of acetylcholine (ACh) was injected into the VMH and electrical stimulation was applied. The...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(86)90178-4
更新日期：1986-04-01 00:00:00
abstract：:Normal human subjects made rapid extensions of the elbow from an initial position to visual targets at different angular distances (9 degrees-54 degrees). We recorded joint angle, acceleration, and surface electromyograms (EMGs) with a monopolar electrode from the triceps and the biceps brachii muscles. Both the agoni...
journal_title：Brain research bulletin
pub_type： 杂志文章
doi：10.1016/0361-9230(93)90034-9
更新日期：1993-01-01 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
