| behavioral and physiological studies of hearing in birds. | studies of hearing thresholds and frequency- and intensity-difference limens for birds are reviewed. where possible these are related to limitations placed on auditory function by stimulus processing at peripheral levels of the avian auditory system. the high frequency limit of bird hearing is about 10 khz; this limit is shown to be imposed in part by middle ear function and in part by cochlear mechanisms. for frequencies greater than 1.0 khz, frequency-difference limens (dls) show a similar dep ... | 1978 | 98352 |
| [shock lung (review of foreign literature)]. | | 1978 | 98662 |
| [retrograde axonal transport of horseradish peroxidase along the striato-thalamic pathways of cats]. | | 1978 | 98719 |
| instrumentation, working hypotheses, and clinical aspects of neurostimulation. | | 1977 | 98728 |
| cats as definitive hosts for sarcocystis of sheep. | | 1978 | 98741 |
| [benign intracranial hypertension and thrombosis of the venous sinuses during contraceptive treatment: anatomo-clinical and neuroradiological observations (author's transl)]. | the side-effects of oral contraceptives on the nervous system have been studied in 2 patients. the first case, a young woman who, after several years, of cyclic consumption of 4 mg of norethylsterone acetate and 0.05 mg of ethynilestradiol, died from a transtentorial temporal hernia due to severe intracranial hypertension. angiography, and later autopsy, showed thrombosis of the dural venous sinuses and also of the majority of the emissary veins with c.s.f. blockage. the second case, a patient w ... | 1977 | 98825 |
| species differences in the biotransformation of 4-(2-methyl-3-(4-chlorobenzoyl)phenyl)butanoic acid (ru 16029). | 1. 4-(2-methyl-3-(4-chlorobenzoyl)phenyl)butanoic acid (ru 16029) is a potent anti-inflammatory and analgesic agent. in humans, its ketone group is rapidly reduced to an alcohol, whereas in rats, mice and dogs, its butanoic side-chain is rapidly oxidized to the corresponding acetic acid. 2. the extent of this oxidation was studied in eleven species. cats, dogs, rabbits, hens and rodents readily oxidized the side-chain; humans, baboons and pigs showed only weak oxidizing capacity. 3. species diff ... | 1978 | 98921 |
| diamine oxidase activity in gastric and duodenal mucosa of man and other mammals with special reference to the pyloric junction. | in the gastric mucosa of human subjects and of various mammals methylation was accepted as the main pathway of histamine catabolism. however, augmentation of gastric acid secretion by aminoguanidine, the strong inhibitor of diamine oxidase, indicated an influence of diamine oxidase activity on this secretory process. therefore a careful reinvestigation of the occurrence of diamine oxidase activity was started from the distal duodenum in the direction of the cardia. in all species studied, diamin ... | 1978 | 98970 |
| pharmacological profile of n-(2,6-dimethylphenyl)-n-(1-methyl-2pyrrolidinylidene)urea, xilobam, a new centrally acting skeletal muscle relaxant. | the pharmacological profile of a new centrally acting skeletal muscle relaxant, xilobam, is described and compared to that of existing skeletal muscle relaxants. the potencyof xilobam, administered intravenously, is approximately ten times that of methocarbamol in the linguomandibular assay in the cat. when evaluated in the strychnin assay in the mouse, the potency of xilobam is approximately seven times that of chlorzoxazone and eleven tomes that of methocarbamol and five times that of metaxalo ... | 1978 | 99099 |
| [interneurons of the motor region of the neocortex]. | interneurons of motor area in the brain cortex have been studied in cats and monkeys. the greatest attention has been paid to pyramidal interneurons, among which six cell types have been described according to their axonal composition. unlike stellate interneurons, all types of pyramidal interneurons possess less developed axonal collaterals. interneuronal contacts are situated on dendrites or cell bodies of middle and large long-axonal pyramids. functional role of cortical interneurons seems to ... | 1978 | 99120 |
| [surface of brain and blood brain barrier (author's transl)]. | | 1978 | 99151 |
| selective amplitude histograms: a statistical approach to eeg-single unit relationships in generalized epilepsy. | statistical analysis techniques that permit detection and quantification of eeg-single unit correlations were employed in a study of generalized penicillin epilepsy in the cat. single unit activity was recorded in cerebral and cerebellar cortices and compared to the locally recorded eeg. it was found that during generalized paroxysmal activity the background eeg was significantly related to the time of occurrence of unit discharge. the degree of synchrony of various units differed but tended to ... | 1978 | 99210 |
| [radioautographic identification of central monoaminergic neurons by local micro-instillation of tritiated serotonin or noradrenaline in cats]. | monoaminergic neurons in nuclei raphe dorsalis and locus coeruleus of the cat may be visualized by radioautography after local micro-instillation of tritiated serotonin and noradrenaline. the concomitant administration of the appropriate tracer with the other biogenic amine in non radioactive form permits a specific identification of serotoninergic and catecholaminergic nerve cell bodies. a small contingent of presumptive serotoninergic neurons is thus demonstrated in the region of the locus coe ... | 1978 | 99255 |
| leu-enkephalin-like material in nerves and enterochromaffin cells in the gut. an immunohistochemical study. | the distribution and cellular localization of leu-enkephalin in the gut and pancreas was studied by immunohistochemistry using two different antisera, one specifically directed against leu-enkephalin and the other cross reacting with met-enkephalin. the results were identical with both antisera. in all species examined, enkephalin-immunoreactive material was found in nerves of the smooth muscle, particularly numerous in the myenteric plexus. here, immunoreactive nerve cell bodies were observed o ... | 1978 | 99394 |
| effect of rapid decompression and associated hypoxic phenomena in euthanasia of animals: a review. | documentation in the literature indicates that death is as painless following the induction of hypoxia by rapid decompression as by other methods that lead to hypoxia, such as exposure to high altitude, carbon monoxide, and inert gases (nitrogen, xenon, and krypton). many of the signs and symptoms of hypoxia are the same as those for alcoholic intoxication and inert gas narcosis. moreover, there is good evidence that analogous relationships or mechanisms may exist for hypoxia, inert gas narcosis ... | 1978 | 99410 |
| a maturation change detected in the semilunar cartilages with the scanning electron microscope. | the surface of rabbit, cat, monkey and human semilunar cartilages was examined with the scanning electron microscope. a common feature was the occurrence of numerous ridges, undulations and furrows on the surface, but this was thought to be due to marked shrinkage and distortion of cartilage not firmly attached to bone. humps were seen on the semilunar cartilages of young animals, but pits occurred in adults. this is thought to reflect a maturation change. humps were seen in a young human semilu ... | 1978 | 99411 |
| a comparative study of the neurons of origin of the spinocerebellar afferents in the rat, cat and squirrel monkey based on the retrograde transport of horseradish peroxidase. | the cell bodies of the neurons of the spinocerebellar pathways were examined using large injections of horseradish peroxidose into the cerebellum. sections of each spinal segment were examined with both the dab and the de olmos o-dianisidine techniques. results common to all three species were found. in clarke's nucleus, the central cervical nucleus, and the spinal border cells there were many heavily labeled cells. clarke's nucleus was found to project primarily ipsilaterally; the spinal border ... | 1978 | 99460 |
| some pharmacological actions of nitroharmidine nitrate. | | 1978 | 99531 |
| [monograph series on biomedical instrumentation (2). laboratory animals and animal experimentation--for the choice of available models (author's transl)]. | | 1978 | 99553 |
| diamine oxidase in renal failure. | the enzyme, diamine oxidase, is present in many tissues and plays a role in the metabolism of certain amines, some of which may be toxic. in renal failure, plasma diamine oxidase activity was found to be increased in chronically uremic patients and before and after dialysis therapy in patients undergoing maintenance hemodialysis. diamine oxidase activity was decreased in urine of the chronically uremic patients as compared to normal subjects. in chronically uremic rats, diamine oxidase activity ... | 1978 | 99597 |
| a stereometric pattern of distribution of acetylthiocholinesterase in the deep layers of the superior colliculus. | | 1978 | 99660 |
| ethosuximide and bicuculline inhibition in petit mal epilepsy. | the mechanisms of petit mal epilepsy remain a mystery despite successful therapy. previous workers have proposed that paroxysmal activity of cortical inhibitory systems plays a role in absence seizures. in this study, we have compared the effects of bicuculline, a potent convulsive agent and gaba antagonist, with ethosuximide, a drug used to treat petit mal epilepsy, on the thalamocortical motor system of the cat. under chloralose anesthesia, sequential pairs of pulses were delivered to ventrola ... | 1977 | 99676 |
| electrophysiological investigation of cortico-hypothalamic relations in cats. | projections of different parts of the orbito-frontal cortex, the basal temporal cortex, and the hippocampus on hypothalamic nuclei were studied by recording focal responses in acute experiments on cats anesthetized with pentobarbital and chloralose. the proreal gyrus was shown to have local projections in the latero-dorsal zones of the preoptic region, in the postral parts of the medial forebrain bundle, and also in the region of the lateral and posterior hypothalamus with the mammillary bodies. ... | 1977 | 99685 |
| [endocranial complications in hemopathies. merits of computerized axial tomography (cat) (author's transl)]. | on the basis of 88 patients examined with cat, the writers consider the merits of this method of investigation in a study of endocranial complications in blood diseases. interest in cat is related in great part to its innoccuousness (making it possible to extend its application to often seriously ill patients) and the precision of the images which are obtained. this precision makes it possible to visualize lesions which at times can not be detected with other methods. a great part of present kno ... | 1978 | 99788 |
| [pulpal repercussions of orthodontic rotation]. | | 1978 | 99789 |
| ultrastructural study of the sexual stages of sarcocystis fusiformis (railliet, 1897) in domestic cats. | | 1978 | 99894 |
| fe ii uptake of enterochromaffin. biochemical and histochemical study of the ferrous ion uptake reaction in relation to enterochromaffin cells and mast cells. | | 1978 | 99951 |
| auto-mutilation in animals and its relevance to self-injury in man. | self-mutilation in non-human mammals is a well-established, although not a widely known phenomenon, which has been reported under zoo and laboratory conditions. in macaque monkeys, laboratory rearing and isolation are important predisposing factors, and the more serious self-injury is initiated by some immediate stimulating event. it is commonly accompanied by behaviour normally shown by the animal in a fighting context. lower mammals are also known to mutilate themselves under laboratory condit ... | 1978 | 99981 |
| duodenal gangliosidosis in a cat: ultrastructural study. | ultrastructural changes similar to those seen in gangliosidosis in man were detected in the duodenal mucosa of a cat (cat 1). the n-acetylneuraminic acid concentration was determined from the duodenum of cat 1 and from a clinically normal cat (cat 2). the total amount of gangliosides in the duodenum of cat 1 was 100 times greater than in the duodenum of cat 2 per unit wet weight. the lyophilizate from the intestines of both cats gave a blue-violet color that was regarded as qualitatively positiv ... | 1978 | 100027 |
| the terminal zone of the external auditory meatus in a variety of mammals. | standard texts describe the human tympanic recess as a shallow depression. khanna and tonndorf (1975) made silicone rubber casts from the auditory meatus of cats and found the recess to be narrow and deep. guided by this finding, casts were made from 13 different mammals. at the terminal zone of the auditory meatus, profound variations were found, the consequence of three changing parameters: (1) angle between roof of the canal and tympanic membrane; (2) shape of the isthmus; (3) shape of the re ... | 1978 | 100087 |
| evaluating cost-effectiveness of diagnostic equipment: the brain scanner case. | an approach to evaluating the cost-effectiveness of high-technology diagnostic equipment has been devised, using the introduction of computerised axial tomography (cat) as a model. with the advent of cat scanning, angiography and air encephalography have a reduced, though important, role in investigating intracranial disease, and the efficient use of conventional equipment requires the centralisation of neuroradiological services, which would result in major cash savings. in contrast, the patter ... | 1978 | 100168 |
| threat, attack and flight elicited by electrical stimulation of the ventromedial hypothalamus of the marmoset monkey callithrix jacchus. | in order to elucidate whether relatively primitive primates show a similar topological organization of substrates mediating defense and flight within the ventromedial hypothalamus as has been found in other mammals, 15 marmosets (callithrix jacchus) were chronically implanted with a total of 57 electrodes for electrical stimulation. experiments took place in a familiar environment and under systematically altered conditions. all anatomical sites yielding vocal threat and short attacks were found ... | 1978 | 100172 |
| [persistence of orientation-selective cells of the primary visual cortex in kittens enucleated unilaterally at birth and reared in darkness]. | in kittens dark reared (6 weeks old) orientation selective cells are no longer recorded in the primary visual cortex, while in kittens of same age, enucleated at birth unilaterally and reared in identical conditions, 30% of visual cortical cells are shown to be orientation selective and in addition respond preferentially to horizontal and vertical orientations. | 1978 | 100252 |
| effect of valproate sodium on generalized penicillin epilepsy in the cat. | | 1978 | 100317 |
| remarks on development of the septum telencephali in mammals. | | 1978 | 100396 |
| comparative anatomy of the bulbourethral glands. (preliminary report). | | 1978 | 100397 |
| the somatic sensory neurons of pericentral cortex. | | 1978 | 100462 |
| spatial processing of luminance and color information. | | 1978 | 100470 |
| the neuroanatomical organization of pathways between the dorsal lateral geniculate nucleus and visual cortex in old world and new world primates. | pathways between the dorsal lateral geniculate nucleus (dlgn) and visual cortex in old world (macaca, papio, erythrocebus, cercopithecus) and new world (saimiri, cebus) primates were studied after injections of horseradish peroxidase and h3 or s35 amino acids into the dlgn or visual cortex. trans-synaptic autoradiography was also used to study these pathways after an injection of h3 proline-fucose into one eye. the subsequent autoradiographs of visual cortex showed that old world primates have s ... | 1978 | 100530 |
| organizational features of the cat and monkey cerebellar nucleocortical projection. | the organization of the cerebellar nucleocortical projection in the cat and the monkey has been studied using orthograde and retrograde neuroanatomical tracing techniques. injections of tritiated leucine in the cat cerebellar nuclei orthogradely labeled nucleocortical fibers throughout their course to the cerebellar cortex. their branch points in the corpus medullare, in the folial white matter, and in the granular layer were evident from the dense, continuous distribution of silver grains overl ... | 1978 | 100532 |
| animal models of human cholesterol gallstone disease: a review. | human cholesterol gallstone disease has been a frequent and serious problem. a number of animal models have been reviewed for comparative study of cholesterol lithogenesis. these models in general have involved (1) decreasing bile salt excretion, (2) increasing dietary cholesterol, or (3) inducing gallbladder infection or stasis. | 1978 | 100653 |
| enzyme replacement using liposome carriers in feline gm1 gangliosidosis fibroblasts. | | 1978 | 100709 |
| kindling: the first decade. | the kindling phenomenon is a progressive increase in the strength of epileptiform activity evoked by spaced (in time) and repeated electrical stimulation of certain brain structures. the work that has been done on the kindling phenomenon is reviewed, with an emphasis on those studies that deal with underlying mechanisms. based on the work that has been done thus far, it is clear that the kindling effect is not due to any type of gross tissue damage. it is also clear that at least some of the eff ... | 1978 | 100716 |
| cats as hosts for sarcocystis of sheep. | | 1978 | 100750 |
| protein a reactivity of various mammalian immunoglobulins. | serum samples and immunoglobulin fractions of eight mammalian species were applied to a sepharose--protein a column. as with the human immunoglobulin subclasses igg1, igg2 and igg4, all examined igg classes and subclasses were bound to a greater or lesser extent to protein a. however, the binding of igg1 of ruminants was very poor. polyclonal igm and iga of the pig, the dog and the cat may be separated in protein a reactive and protein a non-reactive fractions. in addition, monoclonal canine igm ... | 1978 | 100867 |
| [roentgenologic findings in diseases of skeletal parts of the spine, intervertebral disks and the spinal meninges in dogs, cats and horses]. | | 1978 | 100988 |
| haemodynamic changes in the cerebral circulation of the cat during occlusion of the middle cerebral artery. | in a group of 21 cats, the middle cerebral artery pressure (mcap) was recorded by means of a catheter introduced into the artery at its origin, just distal to the occlusion. the effects of hypertension, hypercapnia, and hypocapnia were studied. in a group of five cats, both middle cerebral arteries (mca) were catherized and the pressure was recorded simultaneously on both sides. in another group of five cats, o2 tension measurements were made with the aid of oxygen electrodes in the brain tissue ... | 1978 | 101024 |
| descending monoaminergic pathways in the primate spinal cord. | the distribution of monoamine axons and terminals within the spinal cord of a primate (macaca mulatta) was studied with the falck-hillarp histofluorescence technique for the demonstration of biogenic amines. catecholamine and indoleamine varicosities appeared qualitatively similar to those previously reported for the rat although the indoleamine terminals were difficult to visualize and were not studied in great detail. catecholamine fibers innervate the substantia gelatinosa, marginal layer, in ... | 1978 | 101068 |
| [animal model and drug activity (proceedings)]. | | 1978 | 101102 |
| functional lateralization of the brain. | | 1977 | 101115 |
| evaluation of electrode configurations in cerebellar implants. | capacitively coupled currents of 100 hz, 0.25 msec duration, were applied to multielectrode arrays implanted upon the superior and posterior surfaces of the chimpanzee cerebellum. the current required for 90% reduction in the amplitude of the evoked potential was inversely proportional to the number of electrodes upon the cerebellar surface. a study of various waveforms showed that z hz, 0.25 msec pulse duration is near optimal for reduction of amplitude of the somatosensory evoked potential. th ... | 1977 | 101137 |
| gamma-butyrobetaine hydroxylation to carnitine in mammalian kidney. | | 1978 | 101151 |
| the intrinsic connections of the cortex of area 4 of the monkey. | the intrinsic connections of area 4 of the monkey have been investigated with axonal degeneration methods after the placement of microelectrode lesions within the cortex. the fibre degeneration is restricted to within a few millimetres of the damage and is asymmetrically distributed in the form of an ellipse with its long axis anteroposteriorly. the same pattern is found in all topographic subdivisions of the motor cortex. there are two distinct zones of degeneration, dense fine terminal degener ... | 1978 | 101281 |
| studies on the use of coulter chemistry in the veterinary laboratory: day-to day reproducibility and the effects of storage, hemolysis, lipemia, hyperbilirubinemia and anticoagulants on test results. | a study was done to determine the variations in clinical chemistry test results that might be due to day-to-day changes in laboratory testing conditions or to variations in specimens submitted. laboratory precision and specimen storage conditions had relatively little effect on the test results, except for a few specific instances. other variables, such as the presence of anticoagulants in the specimen and sample discoloration due to hemolysis, hyperbilirubinemia or lipemia were more often respo ... | 1978 | 101346 |
| [exocrine gland activities and the kinin system]. | | 1978 | 101694 |
| pharmacological mechanisms of analgesic nephropathy. | the situation in the experimental field is unresolved; too many factors require clarification before the critical experiment can be conducted to settle the matter once and for all. however, as there is now plentiful evidence to convince any reasonable physician that commonly available analgesics, when abused, carry a significant health risk, one may resonably ask whether any further experimental evidence is needed? the object of this review is in no sense divisive, i.e., by pointing out discrepa ... | 1978 | 101707 |
| the effect of precursors, products, and product analogs of prostaglandin cyclooxygenase upon iris sphincter muscle. | | 1978 | 101727 |
| primum non nocere and the sydney funnel-web spider (continued). | | 1978 | 101753 |
| metabolic effects and toxicities of chloramphenicol. | | 1978 | 101766 |
| congeners of dom: effect of distribution of the evaluation of pharmacologic data. | | 1978 | 101880 |
| the metabolism of dothiepin hydrochloride in vivo and in vitro [proceedings]. | | 1978 | 102390 |
| preliminary studies on paragonimiasis in ichun, hokiang and mutankiang areas of heilungkiang province with observations on a new subspecies of paragonimus westermani--paragonimus westermani ichunensis. | | 1978 | 102493 |
| taurine and other free amino acids in milk of man and other mammals. | taurine and other free amino acids have been determined in human milk of a number of other species. taurine is the most abundant free amino acid in the milk of the gerbil, mouse, cat, dog and rhesus monkey. taurine is the second most abundant amino acid in the milk of the rat, baboon, chimpanzee, sheep, java monkey and man. taurine is not a major constituent in the milk of the guinea pig, rabbit, cow and horse. the milk of each species has a characteristic free amino acid pattern which may be an ... | 1978 | 102507 |
| [genetic limitations of erythrocyte lysis by bacteria of the genus salmonella]. | lytic effect of salmonella bacteria on the erythrocates of 1301 humans (including 150 twins), 1059 hens, 600 mice, 33 guinea pigs, 47 rabbits, 22 horses, 16 sheeps, 7 dogs, 2 cats and 2 monkeys was investigated. erythrocytes of all horses, guinea pigs and rabbits tested appeared to be sensible. the same cells of humans, sheeps, hens, dogs, monkeys and cats turned to be either sensible, or stable. human erythrocytes were the most stable. erythrocytes of humans having had typhus or other salmonell ... | 1978 | 102562 |
| the medial geniculate body of the tree shrew, tupaia glis. i. cytoarchitecture and midbrain connections. | in this study of the medial geniculate body in the tree shrew eight subdivisions are identified on the basis of differences recognized in nissl-stained material. experiments using the methods of anterograde and retrograde axonal transport and anterograde degeneration show that each subdivision has a unique pattern of connections with the midbrain. the ventral division of the medial geniculate body contains at least two subdivisions, the ventral nucleus and the caudomarginal nucleus. the ventral ... | 1978 | 102660 |
| the medial geniculate body of the tree shrew, tupaia glis. ii. connections with the neocortex. | in this study the temporal cortex of the tree shrew was subdivided on the basis of cytoarchitectonic criteria, and the connections of each subdivision with the thalamus and midbrain were analyzed with retrograde and anterograde techniques. the results indicate that, with one exception, each subdivision of the medial geniculate body projects to a separate cortical area. the primary auditory cortex receives projections from the ventral nucleus. surrounding the primary cortex are at least five addi ... | 1978 | 102661 |
| the efferent connections of the anterior hypothalamic area of the rat, cat and monkey. | the general morphology and topographic relations of the anterior hypothalamic area (aha) in the rat, cat and squirrel monkey have been described, and its efferent connections analyzed autoradiographically, after small injections of 3h-labeled amino acids into, or around, the area. in all three species the aha is rather poorly separated from the surrounding preoptic and hypothalamic areas and nuclei but shows three distinct cellular condensations, located rostrally, centrally, and posterodorsally ... | 1978 | 102663 |
| projections to the visual cortex in the golden hamster. | retrograde transport of horseradish peroxidase (hrp) was used to determine the origins of afferent connexions to the visual cortex (areas 17, 18a and 18b) in the hamster. the distribution of neurons projecting to the visual cortex from other cortical areas, from the thalamus and from the brainstem was studied using a computer technique for three-dimensional reconstruction. there is a topographically organized projection from the dorsal lateral geniculate nucleus to area 17, but probably to no ot ... | 1979 | 102666 |
| relaxation of mammalian single cardiac cells after pretreatment with the detergent brij-58. | 1. the influence of load and activation on relaxation of heart muscle has been studied. 2. cardiac cells devoid of functioning sarcolemma were isolated from rat and cat ventricular myocardium. pretreatment with the detergent brij-58 destroyed residual sarcoplasmic reticulum function. in order to analyse the mechanical properties of relaxation in these cells, a new miniature transducer was designed which could measure force by feedback sensing (resolution of 1 microgram). contraction was induced ... | 1978 | 102766 |
| the influence of chemical restraining agents on cardiovascular function: a review. | a review of selected experimental reports indicated that chemical restraining agents commonly used in experimental animals affected basal cardiovascular function and could influence the response of the cardiovascular system to physiologic-pharmacologic stimuli. drugs that were considered included pentobarbital, halothane, alpha-chloralose, droperidol, fentanyl, and ketamine. in relation to effects on hemodynamics, anesthetic restraint produced by one drug was not necessarily equivalent to that p ... | 1978 | 102871 |
| intraspinal alumina injection: the relationship between epileptiform focus, root scarring and chronic pain. | intramedullary or subarachnoid injections of alumina cream were made in the lumbar region of 38 adult cats. the animals were observed for 3 to 12 months and then subjected to acute neurophysiologic and histologic analysis. neuronal hyperactivity in the dorsal horns was reliably produced by either subarachnoid or intramedullary alumina; behavioral abnormalities were not produced unless some of the alumina was present adjacent to dorsal root fibers in the subarachnoid space. neuronal hyperactivity ... | 1978 | 103060 |
| histochemically distinct compartments in the striatum of human, monkeys, and cat demonstrated by acetylthiocholinesterase staining. | we here report observations on the distribution of acetylcholinesterase (acetylcholine hydrolase, ec 3.1.1.7) in the striatum of the adult human, the rhesus monkey, and the cat. by the histochemical staining methods of geneser-jensen and blackstad and of karnovsky and roots, compartments of low cholinesterase activity were identified in parts of the striatum in all three species. in frontal sections, these enzyme-poor zones appeared as a variable number of weakly stained approximately 0.5-mm-wid ... | 1978 | 103101 |
| biologic feedback and cardiovascular disease. | | 1978 | 103126 |
| ocular toxicity studies with zinc pyridinethione. | | 1978 | 103245 |
| inhibition of compound 48/80-induced intradental sensory nerve activity by disodium cromoglycate and serotonin antagonists. | local application of compound 48/80 induced long lasting nerve activity in intradental sensory nerves in the teeth of cats and dogs. this effect was inhibited by pretreatment with disodium cromoglycate (dscg) given locally (2 x 10(-2) m) or i.a. (20 mg/min). dscg did not have any effect on the nerve excitability per se, as judged from the responses to hypertonic nacl and air blasta applied to exposed dentin before and after administration of dscg. local treatment with lysergic acid diethylamide ... | 1978 | 103368 |
| effects of sympathetic nerves on cerebral vessels in dog, cat, and monkey. | cerebral vascular responses to sympathetic stimulation and denervation were examined in three species during acute severe hypertension as well as normal conditions. cerebral blood flow (cbf) was measured with microspheres after the superior cervical sympathetic trunk was cut and during electrical stimulation of the superior cervical sympathetic ganglion. sympathetic denervation did not increase cbf in anesthetized cats or monkeys. under normal conditions, sympathetic stimulation decreased cbf si ... | 1978 | 103441 |
| trypanosoma cruzi infection in dogs and cats and household seroreactivity to t. cruzi in a rural community in northeast brazil. | the prevalence of trypanosoma cruzi parasitemia as determined by xenodiagnosis on domestic dogs and cats was correlated with household rates of seroreactivity to t. cruzi and household panstrongylus megistus infestation in a rural area in northeast brazil where p. megistus was the only domiciliary triatomine vector. t. cruzi infection was present in about 18% of domestic dogs and cats. two-thirds of seroreactive children below age 10 resided in houses with t. cruzi-infected animals. in houses wi ... | 1978 | 103446 |
| recurrent seizures induced by cortical iron injection: a model of posttraumatic epilepsy. | a single injection of 5 or 10 microliters of ferrous or ferric chloride into rat or cat sensorimotor cortex resulted in chronic recurrent focal paroxysmal electroencephalographic discharges as well as behavioral convulsions and electrical seizures. iron-filled macrophages, ferruginated neurons, and astroglical cells surrounded the focus of seizure discharge. recurrent focal epileptiform discharges caused by cortical injection of iron salts suggests that the development of human posttraumatic epi ... | 1978 | 103489 |
| [ultrastructural changes in the cerebral cortex following transcranial micropolarization]. | electron microscopy of the cerebral cortex in cats and monkeys following transcranial micropolarization (tcmp) demonstrated ultrastructural changes whose degree was dependent on the electric current intensity and the stimulation period. in the focus of stimulation the current affected the brain tissue directly, different elements of the cerebral cortex showing unegual sensitivity to various tcmp regimens. the glia was the first to respond, then the neuronal bodies, and the last -- the synaptic s ... | 1978 | 103591 |
| prolonged alterations of muscle activity induced in locomoting premammillary cats by microstimulation of the inferior olive. | | 1978 | 103600 |
| focal penicillin epilepsy in an isolated cerebral hemisphere. | | 1978 | 103744 |
| multinationals and health: reflections on the seveso catastrophe. | on july 10, 1976, a cloud of vaporized products containing dioxin escaped from a deposit of a plant of the icmesa firm in the northern suburbs of milan. the fallout was deposited on a vast zone in the municipalities of desio, seveso, meda, and cesano. dioxin was not the desired product of the industrial process, but rather an impurity which generally accompanies trichlorophenol, and, to a smaller extent, the products synthesized from trichlorophenol. among these there are hexachlorophene and the ... | 1978 | 103846 |
| cat scratch disease. | | 1978 | 103848 |
| effect of intracranial stimulation of the oculomotor nerve on ocular blood flow in the monkey, cat, and rabbit. | | 1979 | 103861 |
| the axonal arborizations of lateral geniculate neurons in the striate cortex of the cat. | | 1978 | 103938 |
| cat screening for neurological disease. | | 1978 | 104133 |
| cat screening for neurological disease: an abuse? | | 1978 | 104135 |
| anatomical localization of corneal afferent cells in the trigeminal ganglion. | corneal afferent cells were identified in the trigeminal ganglion in the cat and monkey by the method of retrograde axonal transport of horseradish peroxidase. the corneal cells were found only in the ophthalmic portion of the ganglion and were scattered randomly within that division. these data are compatible with clinical and other experimental descriptions of the organization of the trigeminal ganglion and sensory root. | 1978 | 104187 |
| a golgi analysis of neuronal organization in the medial cerebellar nucleus of the rat. | | 1979 | 104189 |
| some affinities and differences between the submandibular glands of the primates, tree-shrew (tupaia glis), insectivora and some other kinds of animals. | | 1978 | 104216 |
| functional antagonism between dopamine and noradrenaline within the caudate nucleus of cats: a phenomenon of rhythmically changing susceptibility. | | 1978 | 104326 |
| [comparative review of the developmental biology of the genera sarcocystis, frenkelia, isospora, cystoisospora, hammondia, toxoplasma and besnoitia (author's transl)]. | a review is given of the advances in our knowledge of the developmental biology of the so-called cyst-forming coccidia in the years from 1974 to 1978. until 1970 only 6 isospora species were known to occur in cats, dogs and men. after the discovery of the coccidian nature of the genera toxoplasma, sarcocystis, besnoitia and frenkelia, and after the discovery of the new genus hammondia the number of known species rose to over 30. in addition it could be shown that also birds of prey, owls and rep ... | 1978 | 104465 |
| comparative formaldehyde-induced and glyoxylic acid-induced fluorescence histochemical studies on the intrinsic adrenergic innervation of the intestine and the liver of normal and vagotomized cats. | the inbuilt intrinsic adrenergic nervous apparatus of the intestine and liver of the cat was studied using 1. the formaldehyde-induced fluorescence histochemical method and 2. the glyoxylic acid-induced fluorescence histochemical method for serial microtome sections and whole mount tissue layers or smear preparations. in addition, the effect of i) total abdominal infra-diaphragmatic vagotomy with or without associated finney-type gastro-duodenostomy and ii) unilateral (left or right) and bilater ... | 1978 | 104525 |
| environmental impact on laboratory animals. | | 1978 | 104558 |
| sarcocystis and sarcocystosis in domestic animals and man. | | 1978 | 104559 |
| [epidemiology of chagas disease in chile. housing conditions related to the presence of triatoma infestans and the rate of humans and animals infected by trypanosoma cruzi (author's transl)]. | | 1978 | 104721 |
| development of ocularity domains and growth behaviour of axon terminals. | ontogenetic development of ocularity domains--stripes, patches and layers in cortex, colliculus superior and lateral geniculate nucleus--is the result of organization that may either be intrinsic to the postsynaptic structure or induced to it by the afferents. a specific type of axonal growth behaviour that was recently proposed as a basis for ontogenetic development of retinotopy is sufficient to account also for ocularity domains. no intrinsic organization in the postsynaptic structure is requ ... | 1979 | 104744 |
| a mathematical model of chemoreflex responses to hypercapnic stimuli. | | 1979 | 104820 |
| high affinity uptake sites for taurine in the retina. | | 1978 | 104877 |
| species-dependent stereospecific serum protein binding of the oral anticoagulant drug phenprocoumon. | 13 mammalian species are classified into 3 clearcut groups with respect to the stereospecific serum protein-binding of phenprocoumon: 2 groups showing opposed stereospecific binding characteristics and a 3rd group exhibiting no stereospecific binding. structural differences in the albumin molecule account for these stereospecific differences in serum protein-binding. | 1978 | 104885 |