Abstract:
BACKGROUND:Insulin-like growth factor-I (IGF-I) has been shown to protect against stroke in rats when administered intracerebroventricularly. However, this invasive method of administration is not practical for the large number of individuals who require treatment for stroke. Intranasal (IN) delivery offers a noninvasive method of bypassing the blood-brain barrier (BBB) to deliver IGF-I and other neurotrophic factors to the brain. Here, we demonstrate for the first time the therapeutic benefit of IN IGF-1 in rats following middle cerebral artery occlusion (MCAO). METHODS:A blinded, vehicle-controlled study of IN IGF-I was performed using the intraluminal suture occlusion model. Rats were randomly divided into vehicle-control, 37.5 and 150 microg IGF-I-treated groups. Treatments occurred at 10 min after onset of 2 h of MCAO, and then 24 and 48 h later. Four neurologic behavioral tests were performed 4, 24, 48 and 72 h after the onset of MCAO. Corrected infarct volumes were evaluated 72 h after the onset of MCAO. RESULTS:Treatment with the 150 microg IGF-I significantly reduced the infarct volume by 63% vs. control (p=0.004), and improved all the neurologic deficit tests of motor, sensory, reflex and vestibulomotor functions (p<0.01). However, the 37.5 microg dose of IGF-I was ineffective. CONCLUSION:While IGF-I does not cross the BBB efficiently, it can be delivered to the brain directly from the nasal cavity following IN administration, bypassing the BBB. IN IGF-I markedly reduced infarct volume and improved neurologic function following focal cerebral ischemia. This noninvasive, simple and cost-effective method is a potential treatment for stroke.
journal_name
J Neurol Scijournal_title
Journal of the neurological sciencesauthors
Liu XF,Fawcett JR,Thorne RG,DeFor TA,Frey WH 2nddoi
10.1016/s0022-510x(01)00532-9subject
Has Abstractpub_date
2001-06-15 00:00:00pages
91-7issue
1-2eissn
0022-510Xissn
1878-5883pii
S0022510X01005329journal_volume
187pub_type
杂志文章abstract::Platelet aggregation (PA) induced by (-)-epinephrine and adenosine diphosphate (ADP) was studied in 16 patients with myotonic dystrophy (MyD) and 14 healthy subjects. Plasma beta-thromboglobulin level (beta-TG), a useful marker of in vivo platelet release reaction, as well as in vitro 5-[14C]hydroxytryptamine (5-HT) r...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/0022-510x(88)90128-1
更新日期:1988-04-01 00:00:00
abstract::The thyroid hormone thyroxine (T4), administered post-natally to neonatal rats, has been shown to accelerate development of auditory function, as expressed by auditory nerve-brainstem evoked responses. This study investigated whether this earlier development was also reflected in other sensory modalities. Rat pups wer...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/0022-510x(94)00229-h
更新日期:1995-02-01 00:00:00
abstract::Epidemiologists have found a decreased risk of developing Alzheimer's disease (AD) in people taking statins (cholesterol biosynthesis inhibitors). We have reported previously that, in cell culture, lovastatin decreases the output of beta-amyloid, a peptide that is toxic to neurones, and is reputably the prime cause of...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/j.jns.2004.11.044
更新日期:2005-03-15 00:00:00
abstract::Nutritional deficiency may be the cause of a genuine optic neuropathy, sometimes associated with involvement of the peripheral nervous system. Nutritional optic neuropathies are usually bilateral, painless, chronic, insidious and slowly progressive. Most often, they present as a non-specific retrobulbar optic neuropat...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章,评审
doi:10.1016/j.jns.2007.06.038
更新日期:2007-11-15 00:00:00
abstract::This study assessed the effect of muscle unloading on the neuromuscular system. Sixteen male Fischer 344 rats were randomly assigned to either a hindlimb suspension (unloaded) or control group (N=8/group) for 16 days. Following this intervention period, pre- and postsynaptic features of the neuromuscular junctions (NM...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/s0022-510x(02)00455-0
更新日期:2003-06-15 00:00:00
abstract::Healthy brain tissue pulsates with the cardiac cycle, but whether brain tissue pulsations (BTPs) are impaired by tissue ischemia due to ischemic stroke is currently unclear. This study is the first to explore the clinical potential of measuring BTPs using ultrasound in acute ischemic stroke patients. BTPs were measure...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/j.jns.2020.117164
更新日期:2020-12-15 00:00:00
abstract:BACKGROUND:Genetic variants in Phosphodiesterase 4D (PDE4D) and 5-lipoxygenase activating protein (ALOX5AP) have been shown to confer risk of Ischemic Cerebrovascular Disease (ICVD) in Iceland. We investigated whether these variants associate with ICVD in Sweden. METHODS:Previously published PDE4D and ALOX5AP gene var...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/j.jns.2007.06.042
更新日期:2007-12-15 00:00:00
abstract:OBJECTIVES:To address practical issues in measuring autoantibodies to neuronal cell-surface antigens (NSAs) in various autoimmune neurological disorders (ANDs). METHODS:We retrospectively reviewed the clinical information of 221 patients with clinically suspected ANDs who underwent antibody testing for NSAs between Ja...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/j.jns.2018.04.009
更新日期:2018-07-15 00:00:00
abstract::We examined insulin-like growth factor I (IGF-I)-dependent phosphorylation and protein tyrosine kinase (PTK) activity in cerebellar cortex of normal humans, patients with olivopontocerebellar atrophy (OPCA) ("C" kindred) and in lurcher mutant mouse, a suggested animal model for OPCA. PTK activity and IGF-I-dependent p...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/0022-510x(94)90008-6
更新日期:1994-06-01 00:00:00
abstract::The sternocleidomastoid muscle is located in the neck and is both a neck rotator and flexor. Cervical dystonia, a focal dystonia disorder, is characterized by forceful involuntary contraction of a group of neck muscles, usually including the sternocleidomastoid. Little is known about the fiber type composition, fiber ...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/s0022-510x(98)00011-2
更新日期:1998-01-01 00:00:00
abstract::We hypothesize that Pittsburgh compound B (PIB) binding is common in poststroke dementia (PSD) and that cognitive decline may be faster in PIB positive patients. We performed PIB positron emission tomography (PET) among 17 subjects: 10 PSD patients, 4 Alzheimer's disease (AD) patients, and 3 healthy controls. We also ...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/j.jns.2009.12.014
更新日期:2010-03-15 00:00:00
abstract::Shapiro syndrome is a rare entity, comprising a triad of recurrent hypothermia, hyperhidrosis and congenital agenesis of the corpus callosum. Fewer than 50 cases have been described, almost invariably in patients presenting in childhood or early adulthood. We present a case of an 80 year old woman presenting with recu...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/j.jns.2013.03.014
更新日期:2013-06-15 00:00:00
abstract::Preclinical evidence strongly indicate that adenosine A(2A) receptor antagonists represent a promising class of drugs for the treatment of motor deficits associated to Parkinson's disease. The effects of adenosine A(2A) receptor antagonists were here assessed in a rat model of parkinsonian tremor induced by cholinomim...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/j.jns.2006.05.038
更新日期:2006-10-25 00:00:00
abstract::Thalamic damage is associated with a variety of neuropsychological dysfunctions, as well as strategic infarct dementia. However, only a limited number of reports in the medical literature have discussed the correlation between the clinical findings and the specific functional changes observed on images. We investigate...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/j.jns.2007.09.016
更新日期:2008-03-15 00:00:00
abstract::Here, we report the observation of extrapontine lesions, in addition to the pontine lesions previously documented in a diagnosed case of hemodialysis-associated osmotic demyelination syndrome due to end-stage renal disease. The patient exhibited lesions on bilateral middle cerebellar peduncles, and had been receiving ...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/j.jns.2006.10.012
更新日期:2007-02-15 00:00:00
abstract::Quantitative analysis of motor unit potentials (MUPs) with spike triggering and averaging was performed from the mildly affected brachial biceps muscle of 18 patients with amyotrophic lateral sclerosis (ALS) and of 18 age-matched controls. The total MUP duration was only 6% higher in ALS patients than in controls (P l...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/0022-510x(90)90242-f
更新日期:1990-02-01 00:00:00
abstract::A forty seven year old woman with previously undetected goitre, developed thyroid storm in the immediate postoperative period. Forty eight hours after undergoing nephrolithotomy for renal calculus, she was noted to have flaccid areflexic quadriparesis, most marked in the lower limbs. Electrophysiologic studies reveale...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/s0022-510x(97)00313-4
更新日期:1998-03-05 00:00:00
abstract::Increasing evidence shows that exposure to an enriched environment (EE) after cerebral ischemia/reperfusion injury has neuroprotective benefits in animal models, including enhancing functional recovery after ischemic stroke. However, the mechanism underlying this effect remains unclear. To clarify this critical issue,...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/j.jns.2014.10.022
更新日期:2014-12-15 00:00:00
abstract::We used the Computer Assisted Sensory Examination (CASE IV) and a new, rapid 4, 2, and 1 stepping algorithm to determine the influence of local temperature on vibratory detection threshold (VDT) in the great toe of 11 healthy adult subjects. We found that over a broad range of temperatures, VDT did not vary much. A la...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/0022-510x(94)90265-8
更新日期:1994-11-01 00:00:00
abstract:PURPOSE:T cells are important in the immunopathology of immune-mediated peripheral neuropathies (PNP) and activated vitamin D regulates the immune response through increasing the amount of regulatory T cells. An association between vitamin D deficiency and polyneuropathy has been stipulated; hence we assessed whether p...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/j.jns.2014.07.040
更新日期:2014-10-15 00:00:00
abstract::Duchenne muscular dystrophy (DMD) is a fatal X-linked recessive disorder of muscle in children. The DMD gene product, "dystrophin", is absent from DMD, while the allelic disease, Becker muscular dystrophy (BMD), exhibits dystrophin of abnormal size and/or quantity. But we are still uncertain about the scenario that in...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/0022-510x(91)90039-a
更新日期:1991-02-01 00:00:00
abstract::Although peroxisomes were initially believed to play only a minor role in mammalian metabolism, it is now clear that they catalyse essential reactions in a number of different metabolic pathways and thus play an indispensable role in intermediary metabolism. The metabolic pathways in which peroxisomes are involved inc...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章,评审
doi:10.1016/0022-510x(88)90203-1
更新日期:1988-12-01 00:00:00
abstract::Muscle biopsies of hypotonic children have shown delayed maturation of a fetal type of muscle fibers: subsarcolemmal halo devoid of activity for mitochondrial dehydrogenases, type II predominance and in some cases abnormal dispersion of fiber diameter. Fiber subtypes within group II were also abnormal. One case has de...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/0022-510x(78)90184-3
更新日期:1978-11-01 00:00:00
abstract::Clinical awakening can be seen just before or after seizure onsets. In this study we determined the time between onset of seizures and awakening in patients with frontal lobe epilepsy (FLE) and temporal lobe epilepsy (TLE). Sixty-eight patients who underwent video-EEG monitoring with simultaneous PSG were retrospectiv...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/j.jns.2011.12.009
更新日期:2012-04-15 00:00:00
abstract::Vitamin B1- and B-deficient encephalopathy was produced in adult Wistar rats and the effect of methylcobalamin was studied. These experiments were performed in vitamin B1- or B-deficient rats with or without the administration of guanidine, a magnesium antagonist. These encephalopathic rats showed symmetrical lesions ...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/0022-510x(87)90210-3
更新日期:1987-01-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to clarify the difference between PSP and PD from the viewpoint of dynamic cerebrospinal fluid (CSF) flow focusing on the midbrain aqueduct. METHODS:Thirty-three PD patients (mean age 69.2±7.9) and 35 PSP patients (mean age 70.5±6.6) were included in this study. CSF flow was cal...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/j.jns.2015.07.026
更新日期:2015-10-15 00:00:00
abstract::We assessed the relationship between key trace elements and neurocognitive and motor impairments observed in konzo, a motor neuron disease associated with cassava cyanogenic exposure in nutritionally challenged African children. Serum concentrations of iron, copper, zinc, selenium, and neurotoxic lead, mercury, mangan...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/j.jns.2015.01.007
更新日期:2015-02-15 00:00:00
abstract::Using special soft tissue X-ray investigations the authors have found that the increase in volume of the calf musculature in progressive muscular dystrophy does not seem to be in complete accordance with the criteria of pseudohypertrophy. It has been demonstrated that this structural alteration of the musculature does...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/0022-510x(79)90074-1
更新日期:1979-09-01 00:00:00
abstract::The authors describe an unusual case of autosomal recessive spastic ataxia of Charlevoix-Saguenay (ARSACS) without leg spasticity, which is a core clinical feature of ARSACS. This is the second family with a spasticity-lacking phenotype in ARSACS. A peripheral nerve conduction study disclosed decreases in motor and se...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/j.jns.2007.02.002
更新日期:2007-04-15 00:00:00
abstract:BACKGROUND:Neurovascular Coupling is the cerebral mechanism responsible for linking neuronal activity, cerebral metabolism and regional cerebral blood flow (CBF). The direct relation between functional brain activity during active, passive and motor imagery paradigms and changes in CBF has been widely investigated usin...
journal_title:Journal of the neurological sciences
pub_type: 杂志文章
doi:10.1016/j.jns.2019.116427
更新日期:2019-10-15 00:00:00