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Showing 25 to 36 of 1529 entries
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Melatonin-induced changes in the sensory activation of acute epileptic foci.

Neuroscience letters

Fariello RG, Bubenik GA.
PMID: 19604878
Neurosci Lett. 1976 Oct;3(3):151-5. doi: 10.1016/0304-3940(76)90085-9.

Intraperitoneal, intravenous and intracisternal injection of various amounts (50-1000 microg/kg) of melatonin in cats did not significantly change the focal epileptiform activity produced in various cortical areas and limbic structures by topical application of various convulsant agents. However, when...

Simultaneous visualization of chromatolytic neurons and neurons retrogradely labeled with horseradish peroxidase.

Neuroscience letters

Weisberg JA, Metz CB.
PMID: 19604881
Neurosci Lett. 1976 Nov;3(4):167-71. doi: 10.1016/0304-3940(76)90068-9.

A method is described for visualization of neurons retrogradely labeled with horseradish peroxidase (HRP) in celloidin-embedded brain slabs. The preservation of cellular detail obtained with this technique facilitates (1) accurate delimination of nuclei or laminae in which HRP-positive neurons...

Cells of origin of hypothalamo-spinal projections in the rat.

Neuroscience letters

Hancock MB.
PMID: 19604883
Neurosci Lett. 1976 Nov;3(4):179-84. doi: 10.1016/0304-3940(76)90070-7.

The retrograde transport of horseradish peroxidase (HRP) was used to determine the distribution of hypothalamic neurons which send axonal projections to the spinal cord. Labeled cells were observed in the paraventricular nucleus (PV) and in the lateral hypothalamic area...

Local degradation of growth hormone-release-inhibiting hormone (somatostatin) in the central nervous system.

Neuroscience letters

Griffiths EC, Jeffcoate SL, Holland DT.
PMID: 19604916
Neurosci Lett. 1977 Jan;4(1):33-7. doi: 10.1016/0304-3940(77)90120-3.

Peptidases inactivating growth hormone-release-inhibiting hormone (somatostatin) were found to be present in two fractions prepared from the thalamus, hypothalamus, cortex and cerebellum of male and female rats. Somatostatin was also detected in significant quantities in fractions from the thalamus,...

Effect of chronic manganese intoxication on the sleep-wake cycle in the rat.

Neuroscience letters

Roussel B, Renaud B.
PMID: 19604921
Neurosci Lett. 1977 Jan;4(1):55-60. doi: 10.1016/0304-3940(77)90125-2.

Chronic manganese intoxication elicits in the rat an increase in slow wave sleep and a decrease in paradoxical sleep by modification of the length of the phases. The similarities between this observation and the sleep disturbances observed in man...

Maintenance of intracranial self-stimulation in hippocampus and olfactory bulb following regional depletion of noradrenaline.

Neuroscience letters

Phillips AG, Van Der Kooy D, Fibiger HC.
PMID: 19604925
Neurosci Lett. 1977 Feb;4(2):77-84. doi: 10.1016/0304-3940(77)90148-3.

As a test of the 'noradrenergic' theory of brain-stimulation reward rats were trained to respond for stimulation at sites in the hippocampus and olfactory bulb. Inasmuch as there is evidence that the noradrenergic innervation of these two areas arisesexclusively...

Periaqueductal grey lesions reduce morphine analgesia in the rat.

Neuroscience letters

Dostrovsky JO, Deakin JF.
PMID: 19604928
Neurosci Lett. 1977 Feb;4(2):99-103. doi: 10.1016/0304-3940(77)90151-3.

Many recent experiments have implicated the periaqueductal grey matter (PAG) as a major site of action of morphine in producing analgesia. This hypothesis was tested by investigating the effect of PAG lesions on morphine analgesia. Histologically verified electrolytic lesions...

Topographic distribution of visual and somesthesic unitary responses in the Pul-LP complex of the cat.

Neuroscience letters

Giuliano A, Roberto S, Giovanni B, Paolo G, Silvana F.
PMID: 19604934
Neurosci Lett. 1977 Mar;4(3):135-43. doi: 10.1016/0304-3940(77)90128-8.

An electrophysiological analysis of field potentials and unitary responses evoked by visual, acoustic and somesthesic stimuli in thalamic associative nuclei was performed in 'encéphale isolé' cats. Photic responses were particularly pronounced in the pulvinar nucleus (Pul) including its inferior...

Stretch-sensitive mechanoreceptors in the frog sartorius muscle.

Neuroscience letters

Birchall RL, Proske U.
PMID: 19604935
Neurosci Lett. 1977 Mar;4(3):145-9. doi: 10.1016/0304-3940(77)90129-x.

The sartorius muscle of the frog Litoria aurea contains two populations of mechanoreceptors. Commonest are the muscle spindles served by afferent fibres conducting at 24-42 m/sec. Each muscles also contains two or three high threshold receptors identified as extrafusal...

Membrane properties of a human neuroblastoma.

Neuroscience letters

Kuramoto T, Perez-Polo JR, Haber B.
PMID: 19604936
Neurosci Lett. 1977 Mar;4(3):151-9. doi: 10.1016/0304-3940(77)90130-6.

The electrical properties of the SK-N-SH human neuroblastoma cell were studied by standard intracellular recording techniques; the average resting membrane potential was -21 +/- 11 mV, with a few cells showing mebrane potentials greater than - 40 mV. Under...

Changes of extracellular potassium activity in isolated spinal cord of frog under high Mg(2+) concentration.

Neuroscience letters

Syková E, Vyklický L.
PMID: 19604937
Neurosci Lett. 1977 Mar;4(3):161-5. doi: 10.1016/0304-3940(77)90131-8.

Dorsal root potentials (DRPs) and changes of extracellular K(+) accompanying orthodromic stimulation were studied under high Mg(2+) concentration in isolated spinal cord of the frog. Under 20 mM MgSO(4) when synaptic transmission was blocked the amplitude of DRPs, evoked...

Decreased responsiveness to low doses of apomorphine after dopamine agonists and the possible involvement of hyposensitivity of dopamine 'autoreceptors'.

Neuroscience letters

Baudry M, Costentin J, Marcais H, Martres MP, Protais P, Schwartz JC.
PMID: 19604945
Neurosci Lett. 1977 Mar;4(3):203-7. doi: 10.1016/0304-3940(77)90139-2.

Apomorphine in low dosage (0.3 mg/kg) inhibits climbing behavior, a stereotyped motor activity, in mice. Pretreatment with apomorphine in low doses (0.125 or 0.25 mg/kg) or with piribedil (25 mg/kg), a weak dopamine agonist, results in a less marked...

Showing 25 to 36 of 1529 entries