| pharmacological aspects of dihydrogenated ergot alkaloids in experimental brain research. | | 1978 | 205890 |
| quantiative cytology and electron microscopy of the cerebellar nuclei in the cat. | | 1977 | 206032 |
| excitatory adrenergic receptors in the intestinal and colonic smooth muscle of the ileocaecal region. | | 1977 | 206095 |
| [ultrastructural organization of the mammalian pineal body during postnatal ontogenesis]. | ultrastructural organization of the components composing the mammal pineal gland is analyzed on the basis of literature data and personal observations. variations in the form, size and ultrastructural organization of the cellular elements in the pineal gland--pinealocytes, interstitial and glial cells--are discussed. the problem of dark and light pinealocytes is considered as a part of a general biological problem on the presence of dark and light cells as a reflection of the law on "intermitten ... | 1978 | 206233 |
| multipeaking of the compound electromyographic response to single nerve stimulus: its occurrence and prevention in an experimental model. | the compound electromyographic response to a single nerve stimulus was examined in the cat tibialis anterior muscle preparation, to determine the cause of and to find a method of preventing multipeaking of the waveform. bundles of the sciatic nerve were separated and stimulated while the response was detected by unipolar electrodes and analysed with an instrument specifically designed for this purpose. it was found that the most cephalad bundle of the sciatic nerve at the sciatic notch innervate ... | 1978 | 206271 |
| pharmacological and electrophysiological studies of morphine and enkephalin on rat supraspinal neurones and cat spinal neurones. | 1 the actions of morphine, methionine and leucine enkephalin, administered electrophoretically, were studied on supraspinal neurones in the cortex and brainstem of the rat anaesthetized with urethane and on spinal renshaw cells and dorsal horn interneurones in the cat anaesthetized with pentobarbitone.2 the majority of renshaw cells and cortical and brainstem neurones were excited by all three compounds although some supraspinal neurones were depressed.3 naloxone reversibly antagonized both exci ... | 1978 | 206309 |
| stimulation of presynaptic beta-adrenoceptors enhances [3h]-noradrenaline release druing nerve stimulation in the perfused cat spleen. | 1 the effects of isoprenaline, propranolol and phosphodiesterase inhibitors on (3)h-transmitter overflow elicited by low frequency nerve stimulation were determined in the isolated perfused spleen of the cat.2 (-)-isoprenaline (0.14, 1.4, and 14 nm) produced a concentration-dependent increase in [(3)h]-transmitter overflow evoked by nerve stimulation at 1 hz and was more effective at 1 hz than at 2 hertz.3 a concentration of propranolol (0.1 mum), devoid of neurone blocking activity, blocked thi ... | 1978 | 206310 |
| sleep and hormones. | | 1978 | 206448 |
| the feline leukemia virus question. | | 1978 | 206528 |
| cytoplasmic laminated bodies in the lateral geniculate nucleus of normal and dark reared cats. | | 1978 | 206578 |
| striatal control of locomotion, intentional actions and of integrating and perceptive activity. | | 1978 | 206673 |
| frequency-response analysis of vestibular-induced neck reflex in cat. i. characteristics of neural transmission from horizontal semicircular canal to neck motoneurons. | 1. vestibular-induced neck muscle reflexes (vestibulocollic reflexes) were studied with frequency-response methods in unanesthetized, decerebrate cats. the horizontal semicircular canals were stimulated by oscillation of the turntable and emg activity was recorded from neck extensor muscles. 2. the maximum firing rate of each motor unit was less than 40 spikes/s. the motor units were classified by their maximum firing rates into two groups: hf (high frequency) units which could fire above 20 spi ... | 1978 | 206674 |
| pseudotypes of feline sarcoma virus contain an 85,000-dalton protein with feline oncornavirus-associated cell membrane antigen (focma) activity. | feline sarcoma virus (fesv) rescued from transformed nonproducer mink or rat cells contains two fesv-specific antigens (p15 and p12), and the feline oncornavirus-associated cell membrane antigen (focma). all three antigens are helper virus-independent and are encoded by the fesv genome, focma, p15, and p12 antigens cochromatograph as phosphorylated molecules of 85,000 molecular weight (pp85), adsorb to immunoadsorbant columns prepared with antibodies to feline leukemia virus (felv), and are prec ... | 1978 | 206902 |
| unmyelinated nerve fibres in feline acrylamide neuropathy. | electronmicroscope studies have been performed on the greater splanchnic nerve and the nerve to the medial head of gastrocnemius muscle of control and acrylamide poisoned cats. degeneration of unmyelinated as well as of myelinated fibres was observed in both nerves. in cats severely poisoned with acrylamide, some very large unmyelinated axons undergoing early degeneration were seen in the splanchnic nerve. in the nerve to medial head of gastrocnemius, there was a decrease in the proportion of la ... | 1978 | 207070 |
| fluid transfer from skeletal muscle to blood during hemorrhage. importance of beta adrenergic vascular mechanisms. | vascular reactions in the cat lower leg in response to short-term (10 min) hemorrhagic hypotension (approximately 80 mmhg) were studied before and after regional blockade of the beta-adrenoceptors. in the muscle region with intact beta-adrenoceptors, hemorrhage raised vascular resistance by about 80% and caused a dilatation of the precapillary sphincters, the latter effect evidenced in terms of a 35% increase of the capillary filtration coefficient. concomitantly, an absorption of extravascular ... | 1978 | 207084 |
| cerebral arterial spasm. ii. etiology and treatment of experimental cerebral vasospasm. | delayed cerebral vasospams is caused by excessive accumulation of dopamine-beta-hydroxylase (dbh) and noradrenaline in cerebral vessel walls. this study demonstrates the mechanisms of delayed spasm, particularly the role of red blood cell components, and the successful relief of delayed cerebral vasospasm. spasmogenic substances which contained a heme component, such as methemoglobin, methemalbumin and catalase enhanced dbh activity in human serum as measured by a one step chemical spectrophotom ... | 1978 | 207156 |
| factors influencing the correction factor used to eliminate the apparent nadh fluorescence changes caused by alterations in cerebrocortical blood content. | | 1977 | 207162 |
| transient metabolic and vascular volume changes following rapid blood pressure alterations which precede the autoregulatory vasodilation of cerebrocortical vessels. | it has been shown by surface fluoro-reflectometry that stepwise decrease of arterial blood pressure causes a biphasic cerebrocortical vascular volume response. after the arterial blood pressure decrease the vascular volume first decreased and later increased. in both parts of the biphasic reflectance change, the cerebrocortical nad-nadh redox state shifted considerably towards reduction and there was no reoxidation after the onset of cortical vasodilatation. since a very rapid nadh reduction occ ... | 1977 | 207169 |
| the effect of modifying presynaptic input on the discharge patterns of trigeminal interneurons. | | 1978 | 207387 |
| interneurons of sympathetic ganglia: divergent cyclic amp responses and morphology in cat and cow. | the biochemical properties of the small, intensely fluorescent (sif) cells of bovine and feline superior cervical ganglia were determined by studying the cyclic amp responses to incubation in vitro with adrenergic agonists: the morphological properties were studied by fluorescence histochemistry and electron microscopy. incubation with 50 micron dopamine elicited cyclic amp levels 524% of control values in the bovine ganglion, but only 152% in the feline ganglion (a value which is not statistica ... | 1978 | 207389 |
| d-alpha-aminoadipate, alpha, epsilon-diominopimelic acid and ha-966 as antagonists of amino acid-induced and synpatic excitation of mammalian spinal neurones in vivo. | | 1978 | 207393 |
| angiotensin receptive neurones in the subfornical organ. structure-activity relations. | a microiontophoretic study was performed of the actions of angiotensin ii and angiotensin fragments on neurones of the subfornical organ (sfo). adult cats were anaesthetized and the sfo exposed for penetration by a multibarrelled micropipette. we found that angiotensin ii-[2--8]-heptapeptide shows a significantly higher stimulation of firing rate compared to angiotensin ii. angiotensin ii-[5--8]-tetrapeptide still produced an excitatory action on a single units. both the action of the heptapepti ... | 1978 | 207394 |
| short- and long-latency reflex pathways from neck afferents to hindlimb motoneurones in the cat. | | 1978 | 207396 |
| properties and connections of cat fastigiospinal neurons. | 1. neurons in the cat fastigial nucleus that project to the upper cervical spinal segments (fastigiospinal neurons) were fired by antidromic stimulation of the contralateral spinal cord. dye ejection from the recording electrode was used to show that most neurons were in the rostral half of the fastigial nucleus. 2. fastigiospinal neurons can be excited and/or inhibited by stimulation of forelimb and hindlimb nerves and by stimulation of the vestibular nerve. these inputs converge on many neuron ... | 1978 | 207546 |
| [possible roles of prostaglandins in the hypothalamus (author's transl)]. | the last decade has been the most prolific and stimulating period in the area of prostaglandin (pg) study. since pgs were found in the hypothalamus and cerebrospinal fluid, and were released from the central nervous system (cns) spontaneously and in response to chemical or electric stimulation, many investigators have been engaged in studying their effects in the cns. in fact, pgs have a wide range of pharmacological actions in the cns. relatively large doses of pgs have to be given centrally to ... | 1978 | 207627 |
| neuronal transmission through hippocampal pathways dependent on behavior. | 1. in chronically prepared, freely moving rats, electrical stimulation was applied to the angular bundle, and responses were recorded extracellularly at a variety of sites in the ipsilateral hippocampal formation. at each recording site the stimulus-response relationship was tested during four different behavioral states. these were slow-wave sleep (sws), rem sleep ( rem), and also two waking behaviors consisting of the still, alert condition (labeled sal), and voluntary movement (aw theta). 2. ... | 1978 | 207830 |
| ultrastructure of erythrocytes parasitized by haemobartonella felis. | experimental haemobartonella felis infections were studied in 3 mature, intact cats by examining peripheral blood, lung, and spleen by electron microscopy. coccoid, rod, or ring forms of the organism were found on or close to the erythrocytic membrane, and adjacent parasitized erythrocytes often were attached. intracytoplasmic crystalloid inclusions occupying most of erythrocytic cytoplasm were seen in the 3 infected cats. the cat with the highest parasitemia had inclusions in about 10% of the e ... | 1978 | 207847 |
| differentiation of bradykinin receptors and of kininases with conformational analogues of bradykinin. | | 1978 | 207969 |
| on the presence and distribution of alpha-adrenoceptors in the heart of various mammalian species. | | 1978 | 208007 |
| feline rhinotracheitis-calici-panleukopenia vaccine. | | 1978 | 208048 |
| [effects of eye movements during sleep on pairs of visually evoked responses in cats]. | | 1978 | 208133 |
| influence of antisera to oncornavirus glycoprotein (gp71) on infections of cats with feline leukemia virus. | | 1978 | 208242 |
| properties of mouse leukemia viruses. xv. electron microscopic studies on the organization of friend leukemia virus and other mammalian c-type viruses. | | 1978 | 208316 |
| regulation of aldosterone secretion: current concepts and newer aspects. | four humoral factors have been shown to play important roles in the regulation of aldosterone secretion. these are acth, potassium, sodium and angiotensin ii. acth appears to play little or no role in the maintenance of adrenal zona glomerulosa cells in response to specific stimuli. however, there is evidence to show that physiologic levels of acth regulate the minute-to-minute fluctuations of plasma aldosterone. in man and in experimental animals, alterations in potassium balance as well as ac ... | 1977 | 208405 |
| influence of thymectomy on the susceptibility of cats to feline leukemia virus and lymphosarcoma. | twelve cats were thymectomized at 5 weeks of age. six of these cats were inoculated at 8 weeks of age and 6 at 4 months of age with the rickard (r) strain of feline leukemia virus (felv), which produces a high incidence of thymic lymphosarcoma. two groups of age-matched nonthymectomized cats were inoculated with the same felv-r stock. thymectomy prior to felv infection had no influence on the induction of viremia or the incidence of lymphosarcoma. in the felv-inoculated nonthymectomized cats, ly ... | 1978 | 208436 |
| phasic gain control of the transmission in cutaneous reflex pathways to motoneurones during 'fictive' locomotion. | | 1978 | 208712 |
| the auditory midbrain of a marsupial: the brush-tailed possum (trichosurus vulpecula). | a microelectrode survey was made of the midbrain auditory nuclei of the brushtailed possum (trichosurus vulpecula), a common australian marsupial. information was sought on the tuning characteristics of individual neurones, tonotopic organization and mechanisms of sound localization. it was felt that such information would be of use in future studies of the development and evolution of mammalian hearing. twelve possums were anaesthetized with ketamine and chloralose-urethane, and recordings were ... | 1978 | 208715 |
| neuromuscular and cardiovascular depression produced by prolonged exposure to polymyxin b. | it has been reported previously that in cats pre-treatment for 24 to 48 hours with neomycin sulphate resulted in a change in the pattern of neuromuscular block subsequently produced with this antibiotic. the unique characteristics of neomycin-induced neuromuscular block observed during acute exposure gave way to a pattern of block usually observed with tubocurarine. in a similar experiment on six cats we have demonstrated that with polymyxin b prolonged exposure did not result in a comparable ti ... | 1978 | 208722 |
| brief communication: replication of feline infectious peritonitis virus in organ cultures of feline tissue. | | 1978 | 208815 |
| [the effect of curare-like agents on synaptic transmission in the spinal cord]. | in experiments with decerebrated cats subject to study was the influence of new curare-like agents of non-depolarized type of action, such as diadonium, decadonium, rgh-1106, pancuronium-bromide (pavulon) and also of paramion and mellictine on the magnitude of mono-and polysynaptic potentials of the spinal cord, the time of synaptic delay, the lability of the spinal centres and cycle of the motoneurons excitability restoration. diadonium, decadonium, rgh-1106 and pavulon when used in 1--5-fold m ... | 1978 | 208859 |
| direct syncytial assay for the quantitation of bovine leukemia virus. | a direct in vitro tissue culture method is described for the quantitation of bovine leukemia virus, utlizing a feline s+l-- cell line. | 1978 | 208972 |
| differential growth and transmission in cats of feline leukaemia viruses of subgroups a and b. | the outcome of infecting cats with felv of sub-groups a (felv-a) or b (felv-b) was different. after felv-a infection, virus was quickly recovered from the blood and oropharynx of most animals. following infection with felv-b, only a small proportion of cats developed a viraemia, and this after a long interval. there was no evidence that felv-b was transmitted by contact. the result of infecting cats with mixtures of felv-a and b (felv-ab) was that to a large extent each virus operated independen ... | 1978 | 208983 |
| the specificity of neutralizing antibodies to feline leukaemia viruses. | feline leukaemia viruses (felv) of subgroups a (felv-a), b(felv-b) and c(felv-c) were examined by neutralization. the felv-a isolates were monotypic. by contrast, there was antigenic variation within subgroups b and c. there was also considerable cross-reactivity between subgroups. thus, felv-a viruses showed weak cross-reactivity to the standard felv-c isolate; four of the subgroup b viruses were identical and cross-reactied with the standard felv-c, but not with felv-a or the fifth felv-b, and ... | 1978 | 208991 |
| evaluation of in situ freezing of cat brain by nadh fluorescence. | | 1978 | 209144 |
| effect of oligemia on regional metabolite levels in cat brain. | | 1978 | 209145 |
| detection of proviral dna in horse cells infected with equine infectious anemia virus. | equine infectious anemia virus (eiav) recently has been shown to possess a high-molecular-weight rna genome and a virion reverse transcriptase. we completed the demonstration that eiav is a retrovirus by showing the presence of proviral dna in equine cells infected in vitro, but not in normal horse dna. these studies were performed by using a highly representative cdna probe synthesized by the virion polymerase. it was found that this cdna reassociated extensively, and with high thermal stabilit ... | 1978 | 209211 |
| detection of coronavirus-like particles in a spontaneous case of feline infectious peritonitis. | | 1978 | 209236 |
| [transformation of long reticulofugal impulse trains by interneurons monosynaptically linked to the reticulospinal tract]. | transmission of the reticulofugal activity via the interneurons localized in the ventromedial grey matter of the lumbar region and monosynaptically activated from the reticulospinal fibres was studied in anaesthetized immobilized cats. interneurons usually generated stationary discharges when reticulospinal pathways were rhythmically stimulated with relatively low frequencies (up to 80-100/s); with further increase of stimulation frequency the discharges became non-stationary (initial high-frequ ... | 1978 | 209357 |
| [responses of accessory nerve nucleus motor neurons to stimulation by different sensory inputs]. | monosynaptic epsps in the cat accessory motoneurons were evoked by the stimulation of the cervical dorsal roots (c1 and c2). responses of these units to the accessory nerve muscle rami stimulation were unstable and polysynaptic. it is supposed that the accessory muscles in the cat (m. sternocleidomastoideus and m. trapezius) receive proprioceptive innervation via the dorsal rami of the upper crevical nerves, and the function of accessory nerve is predominantly motor. | 1978 | 209358 |
| inhibition of rem sleep by fluoxetine, a specific inhibitor of serotonin uptake. | | 1978 | 209365 |
| selective inhibition of noradrenergic transmission in vascular smooth muscle. | | 1978 | 209422 |
| opiate and dopamine receptors in the isolated nictitating membrane of the cat. | | 1978 | 209424 |
| atonia after carbachol microinjections near the locus coeruleus in cats. | the effect of microinjections of carbachol into the dorsolateral pontine tegmentum on the behaviour of cats is investigated. injections of small amounts (50 and 500ng) of carbachol into the pontine reticular formation induced muscular atonia in otherwise awake animals. the atonia is not due to cholinergic stimulation of the noradrenergic cells of the locus coeruleus or the dorsolateral pons, since the most effective sites were situated ventrally to the locus coeruleus and alpha- and beta-adrener ... | 1978 | 209480 |
| viral eye diseases. | | 1977 | 209512 |
| alterations of cyclic amp in cerebral ischemia. | cyclic amp levels were measured in brains of 21 cats after occlusion of a middle cerebral artery by a transorbital approach. brain samples for determination of camp by a protein binding radioassay were obtained from the ischemic and contralateral temporal lobes before sacrifice, 1, 3, and 24 hours after occlusion of the right middle cerebral artery. at 1 hour, no difference between the 2 sides was observed; a mean of 17.4 pmoles/mg protein was observed from the side of the occlusion and 18.9 pmo ... | 1978 | 209582 |
| antibody to rotavirus in dogs and cats. | | 1978 | 209605 |
| [functional organization of monosynaptic interneuronal connections in the cerebral cortex]. | a study of monosynaptic intraneuronal connections was performed in micro-regions of sensorimotor and autitory cortical areas in cats. certain definite characteristics were found in the joint activity of neurones which persisted after the regime of microsystem activity was changed. neurones with a lower spike amplitude discharge earlier and elicite discharges in neurones with a greater spike amplitude; feed-backs are inhibitory. it is suggested that in both cortical areas there exist microsystems ... | 1978 | 209640 |
| patterns of microcirculatory failure during incomplete cerebral ischemia. | | 1978 | 209673 |
| mechanism of nicotine-induced release of norepinephrine from adrenergic nerve endings: is generation and propagation of impulses necessary? | the mechanism of release of 3h-norepinephrine (3h-ne) from adrenergic nerve endings by nicotine was investigated. tetrodotoxin (5 x 10(-7) g/ml) abolished the contractile response of adrenergically innervated tissues, namely, rat isolated vas deferens, cat splenic strips, guinea-pig atria to transmural stimulation but not to nicotinic agents, and it did not affect the release of 3h-ne by nicotine from rat isolated vas deferens. incubation of tissues in low na+ (23 mm) and high k+ (50 mm) medium, ... | 1978 | 209754 |
| species difference in the secretory response to dopamine in the pancreas of dogs, cats, rabbits and rats. | the effects of dopamine and l-dopa on the exocrine secretion of the pancreas were compared in rats, cats, rabbits and dogs. dopamine and its precursor, l-dopa, induced a secretin-like stimulation in dogs, while their effects were significantly less in rats. the dopaminergic receptor stimulus was involved in the exocrine secretion of the pancreas in dogs, whereas in rats, the beta-adrenergic receptor was involved. spontaneous secretion in the resting state was present in rabbits but absent in cat ... | 1977 | 209761 |
| the effects of recurrent inhibitory feedback in shaping discharge patterns of motoneurones excited by phasic muscle stretches. | | 1978 | 209833 |
| detection of depolarization-induced coated vesicles within presynaptic terminals in cat sympathetic ganglia maintained under a low temperature. | | 1978 | 209859 |
| the clearing of excess potassium from extracellular space in spinal cord and cerebral cortex. | the relative importance of active and passive transport processes in the clearing of potassium released from active neurons was estimated extracellular potassium activity [k+]0 was measured with ion-selective microelectrodes in the sensory area of the neocortex and in lumbosacral spinal cord of cats. transient elevation of [k+]0 was evoked in cortex by stimulation of vpl and in spinal cord by stimulation of afferent nerves. the rate with which excess [k+]0 was cleared was either feebly or not at ... | 1978 | 209864 |
| latency-rise time relationship in unitary postsynaptic potentials. | | 1978 | 209867 |
| convergence of cerebral inputs onto dentate neurons in monkey. | the patterns of convergence of inputs from different areas of the cerebral cortex and the peripheral nerves onto single dentate neurons was studied in cebus monkeys. dentate neurons receive their strongest and most numerous inputs from the premotor and supplementary motor regions of area 6. the sensorimotor and frontal cortices have weaker projections to the dentate nucleus, while peripheral nerves and many other association cortical areas were found to be effective in influencing cells of the l ... | 1978 | 210029 |
| properties of a new vestibulospinal projection, the caudal vestibulospinal tract. | neurons in the caudal portions of the medial and descending vestibular nuclei and in vestibular cell group f that project to the cervical or lumbar spinal cord were located by antidromic spinal stimulation. these caudal vestibulospinal tract (cvst) neurons have a median conduction velocity of 12 m/sec, which is well below the conduction velocities of typical lateral or medial vestibulospinal tract (lvst, mvst) axons. the descending fiber trajectories of cvst neurons, determined by comparing thre ... | 1978 | 210030 |
| functional organization of the corticofugal system from visual cortex to lateral geniculate nucleus in the cat (with an appendix on geniculo-cortical mono-synaptic connections). | 1. in the cat visual cortex (vc), electrophoretic glutamate application at a depth corresponding to layer vi may have excitatory or inhibitory effects on relay cells of the lateral geniculate nucleus (lgn). corticofugal excitation was seen, if the receptive field centers (rfcs) of the vc neurons recorded at the application site were within 2.3 degrees of the rfcs of the lgn neurons under test. inhibitory effects were seen if the rfcs of both cells were further apart up to 3.1 degrees. glutamate ... | 1978 | 210031 |
| vestibulo-ocular reflex from the posterior canal nerve to extraocular motoneurons in the cat. | in the anesthetized cat, the posterior canal nerve (pcn) was stimulated by electric pulses and synaptic responses were recorded intracellularly in the three antagonistic pairs of extraocular motoneurons. pure reciprocal effects were obtained in the motoneurons innervating the antagonistic pair of ipsilateral oblique muscles and the antagonistic pair of contralateral vertical rectus muscles. these responses consisted of low threshold disynaptic excitatory postsynaptic potentials (epsps) in either ... | 1978 | 210032 |
| firing rates and patterns of output and nonoutput cells in cortical areas 5 and 7 of cat during the sleep-waking cycle. | | 1978 | 210033 |
| eye blinking and rapid eye movement: pulsed photic stimulation of the brain. | | 1978 | 210034 |
| [reactions of the microcirculatory bed of cat mesentery during exposure to heat]. | the tv-microscopy in cats revealed that, by the 30th minute of 2-hr overheating, the arterioles are dilated and venules constricted. in the course of raise of body temperature from 36 degrees to 40 degrees c, the number of dilatory and constrictory responses of venules remains the same while the number of arteriole dilatory responses diminishes and of constrictory responses increases. at 40 degrees c of body temperature, the number of dilatory responses of the mesenteric arterioles and venules m ... | 1978 | 210054 |
| iodide induced suppression of thyrotropin-stimulated adenosine 3',5'-monophosphate production in cat thyroid slices. | cat thyroid slices were studied to investigate their responsiveness to thyrotropin stimulation of cyclic amp accumulation. ovine and bovine thyrotropin, in the presence of 2.5 mm aminophylline, induced a dose-dependent increase in the cyclic amp content of cat thyroid tissue. half-maximal stimulation of cyclic amp accumulation was obtained at a thyrotropin concentration of 1-2 mu/ml. the maximal effect of thyrotropin was observed at 10 mu/ml, and was associated with a mean 77 +/- 19-fold increas ... | 1978 | 210098 |
| a portion of the feline leukaemia virus genome is not endogenous in cat cells. | although viral sequences closely related to feline leukaemia virus are represented in multiple copies in cellular dna of all domestic cats, a specific fraction was present only in the virus-infected cells. this fraction was detected by viral cdna enriched by a prior absorption of a total complementary dna (cdna) transcript with normal cat liver dna. the recycled cdna hybridized well with the cellular dna of virus-infected cells, but to a lesser extent with dna from uninfected cat cells. the prob ... | 1978 | 210130 |
| glucocorticoid effects on spinal cord function. | | 1978 | 210274 |
| high affinity of carozolol for beta-adrenoceptors coupled to the adenylyl cyclase in ventricular myocardium of kitten and xenopus laevis. | catecholamine-induced stimulation of adenylyl cyclase in ventricular membranes of kitten and xenopus laevis was antagonized competitively by carazolol. apparent equilibrium constants ranging between 100-170 pm were estimated for the beta-adrenoceptor-carazolol complex. | 1978 | 210404 |
| [convergence of reticulo-, vestibulo- and rubrospinal influences on motor neurons of the cervical region of the cat spinal cord]. | intracellular recording of synaptic potentials of 93 cervical motoneurons was performed in cats under stimulation of medial longitudinal fasciculus, deiters vestibular nucleus and red nucleus. under stimulation of medial longitudinal fasciculus and deiters nucleus in motoneurons of the forelimb muscles distal groups excitatory reactions were predominant and in motoneurons of proximal extensors inhibitory reactions prevailed. when stimulating the red nucleus excitatory and inhibitory reactions we ... | 1978 | 210407 |
| lsd and tryptamine effects on sleep/wakefulness and electrocorticogram patterns in intact cats. | effects of intravenous infusions of lsd (3.75, 7.5, 15 microgram/kg over 5 min; crossover n = 4) and tryptamine (0.04, 0.08, 0.12 mg/kg/min for 150 min; crossover n = 6) were compared to saline in intact cats through observation of five sleep/waking patterns. electrocorticogram (ecog) was analyzed for frequency band indices and mean amplitude and frequency. lsd increases wakefulness and drowsiness and decreases spindle sleep and rapid eye movement (rem) sleep during the first 75 min (period 1). ... | 1978 | 210478 |
| comparative histochemical study of the enzyme changes in the ovary and uterus of mammals with special references to steroidogenesis. | a comparative study of the enzymes delta5-3beta-hsd, cytochrome oxidase and peroxidase has been made in the ovaries and uterus of mammals (mouse, guinea pig, cat and dog) during various reproductive phases. the granulosa cells of developing follicles, hypertrophied interstitial cells of thecal origin and the luteal cells show intense delta5-3beta-hsd and cytochrome oxidase activity. peroxidases are found to be present in the corpus luteum and the epithelial cords of thecal origin. delta5-3beta-h ... | 1978 | 210614 |
| responses of vestibular units to visual input. | | 1978 | 210732 |
| single unit firing patterns in the vestibular nuclei related to saccadic eye movement in the decerebrate cat. | | 1978 | 210733 |
| [effect of cardiocrome on eeg arousal response (author's transl)]. | the experiment was made on effect of cardiocrome (containing cytochrome c, co-carboxylase and flavin mononucleotide), cytochrome c and cytidine diphosphate (cdp) choline on the eeg arousal response induced by electrical stimulation of mesencephalic reticular formation in 68 unanesthetized immobilized cats. the arousal response was accelerated by intravenous injection of cardiocrome, cytochrome c and cdp-choline. the accelerating effect of cardiocrome was more prominet than that of cytochrome c. ... | 1978 | 210776 |
| influence of vincamine and piracetam on sleep--waking pattern of the cat. | the effect of vincamine and piracetam, two geriatric drugs, on sleep behavior of the laboratory cat was studied. the animals were chronically prepared for recording of the eeg of the cerebral cortex, the lateral geniculate body, and the hippocampus, and for recording of eye movements, the muscular tonus and respiration. during the experiment, sleep and waking behavior were monitored by the above mentioned telemetrically transmitted indicators and also through observation via closed-circuit telev ... | 1978 | 210850 |
| selective antagonism by d-alpha-aminoadipate of amino acid and synaptic excitation of cat spinal neurons. | | 1978 | 210880 |
| effects of opiates and methionine-enkephalin on pontine and bulbar respiratory neurones of the cat. | the effects of microelectrophoretically applied opiate agonists and the antagonist naloxone have been investigated on extracellularly recorded neurones in pontine and bulbar respiratory centers of the cat. morphine, levorphanol and methionine-enkephalin depressed the spontaneous discharge of respiration related units and the firing induced in these cells by phoretically applied l-glutamate. the rhythmic pattern of these neurones was modified, in such a way that basal activity was hardly affected ... | 1978 | 210896 |
| [is paradoxical sleep responsible for a genetic programming of the brain?]. | | 1978 | 210902 |
| beneficial action of new angiotensin-converting enzyme inhibitor (sq 14,225) in hemorrhagic shock in cats. | | 1978 | 210975 |
| the effect of peripheral nerve cross-union on connections of single ia fibers to motoneurons. | the distribution of ia terminals to alpha-motoneurons has been investigated under conditions where a) the ia fiber innervates a foreign muscle and b) the motor axon innervates a foreign muscle. this distribution has been assessed by examining which motoneurons develop an epsp in response to stimulation of a single ia afferent fiber. cross-union of the medial gastrocnemius and lateral gastrocnemius-soleus nerves has been performed in 5--8 day old kittens and the effect of this procedure on ia con ... | 1975 | 211046 |
| polygraphic studies of kitten development: respiratory rate and variability during sleep-waking states. | the developmental course of respiration rate and variability during sleep states and waking was measured in chronically prepared kittens. kittens had higher respiration rates during active sleep (as) as compared to quiet sleep (qs) at all ages, with rates declining developmentally in both sleep states. compared to waking, respiration rate and variability were decreased during sleep. the decrease was greatest in the youngest animals and during qs. minute-to-minute respiratory variability declined ... | 1978 | 211061 |
| panel report on the colloquium on selected diarrheal diseases of the young. | | 1978 | 211109 |
| potentiation of the neurtalization of feline leukaemia virus in hypotonic medium. | the neutralization of feline leukaemia virus could be enhanced by performing the reaction in hypotonic medium. absorption of antibody by virus specific antigens was also made more sensitive under these conditions. | 1978 | 211186 |
| neuromuscular block of the polymyxin group of antibiotics. | | 1978 | 211223 |
| regulation by patterned preganglionic neural activity of transmitter stores in a sympathetic ganglion. | 1. the effect of patterned preganglionic stimulation on acetylcholine (ach) stores was studied in the superior cervical ganglion of the cat. 2. patterns of stimulation based on 0.5 and 1.0 s trains at frequencies from 10 to 80/s and intervals between trains of 2-180 s increased ach stores, over periods of 1-3 h stimulation, to the same extent (30-70%) as found earlier to result from continuous stimulation. 3. if the mean frequency of the overall pattern was greater than 5/s the increase in store ... | 1978 | 211230 |
| [characteristics of acupuncture analgesia, review of the articles on stimulation produced analgesia and morphine like substance (author's transl)]. | | 1978 | 211278 |
| [autoimmune diseases and c-type rna leukemia virus]. | | 1978 | 211281 |
| correlation between inhibition of (na+, k+)-membrane-atpase and positive inotropic activity of cardenolides in isolated papillary muscles of guinea pig. | concentrations of 17 cardenolides, cardenolide glucuronides and sulfates producing half-maximal inhibition of (na+, k+)-membrane-atpase from different organs and animal species were determined in vitro. in addition the concentrations that increased the contractility of guinea pig isolated papillary muscles to a particular level were investigated. comparisons between atpase-inhibiting and positive inotropic cardiac activities showed extensive parallelism: the correlation coefficients after log/lo ... | 1978 | 211447 |
| unit activity in the cat visual cortex in the sleep--waking cycle. | changes in spontaneous unit activity in the primary visual cortex during the sleep-waking cycle were studied in chronic experiments on dark-adapted cats. in the cell poulation studied activity in states of wakefulness and of paradoxical sleep did not differ significantly either in mean discharge frequency or in pattern. activity of most cells in a state of slow sleep differed significantly from that in states of wakefulness and paradoxical sleep by the development of a "burst-pause" pattern in t ... | 1977 | 211461 |
| action of baclofen on mammalian synaptic transmission. | | 1978 | 211462 |
| cells nonproductively transformed by abelson murine leukemia virus express a high molecular weight polyprotein containing structural and nonstructural components. | cell clones nonproductively transformed by the replication-defective abelson strain of murine leukemia virus (ablv) were analyzed for type c viral antigen expression by competition immunoassay. ablv-transformed mink non-producer lines were found to express a 110,000- to 130,000-molecular weight polyprotein containing murine leukemia virus gag proteins p15 and p12 covalently linked to nonstructural ablv-coded component(s) of around 80,000-100,000 molecular weight. this polyprotein lacked detectab ... | 1978 | 211510 |
| effects of third cerebral ventricular injections of cyclic guanosine nucleotides on body temperature of cats. | | 1978 | 211521 |
| [oncogenic viruses and phylogeny or evolution (author's transl)]. | | 1978 | 211544 |