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the climbing fibers of the cerebellar cortex, their origin and pathways in cat.the sources and pathways of the climbing fibers to the cerebellar posterior vermis were studied with comibined electrophysiological and anatomical methods in cats. recording from identified cerebellar purkinje cells, monosynaptic climbing fiber (cf) responses have been obtained both for stimulation of the inferior olive (io) and various parts of the brain stem (bs). cf responses were found to of three types, io only, bs only or both io and bs. however the responses to bs stimulation were very fe ...197663384
horseradish peroxidase: an improvement in intracellular staining of single, electrophysiologically characterized neurons. 197663386
[synthetic compounds with fibrinolytic and thrombolytic activity. i. pharmacologic observations]. 197663421
a comparison of polychromasia and reticulocyte counts in assessing erythrocytic regenerative response in the cat.three staining techniques were evaluated for use in assessing the erythrocytic regenerative responses in the cat. using new methylene blue as a vital stain, the aggregate reticulocyte count closely corresponded to the reticulocyte count on air-dried smears stained with new methylene blue and to the polychromatophilic erythrocyte count on wright's stained smears.197763457
the anatomical organization of the cerebello-olivary projection in the cat.the cerebello-olivary pathway in the cat has been examined using orthograde and retrograde neuroanatomical tracing techniques. the orthograde transport of 3h-leucine from injection sites in the deep cerebellar nuclei labeled dentate and interpositus projections to the rostral two-thirds of the contralateral inferior olivary complex. these projections are topographically organized, with the dentate nucleus projecting to the principal olivary nucleus and the posterior and anterior interpositus nuc ...197663472
d1 cell in search of a hormone. 197663770
bvr-1, a restriction locus of a type c rna virus in the feline cellular genome: identification, location, and phenotypic characterization in cat x mouse somatic cell hybrids.somatic cell hybrids were constructed between balb/c-rag mouse cells and feline lymphoma cells by the hypoxanthine-aminopterin-thymidine selection scheme. rag cells spontaneously produce an endogenous b-tropic type c virus. cat-mouse hybrids preferentially segregate feline chromosomes and retain murine chromosomes-demonstrable by karyotypic and isozyme analyses. despite the presence of the complete mouse genome, including the viral genome, virus production was diminished to 1-5% of the levels ob ...197663949
[feline leukosis and sarcoma viruses]. 197664021
calcitonin, gastrin and gastric secretion. 197664047
inhibition of pancreatic secretion of enzymes by calcitonin.calcitonin in pharmacological dosage inhibits the secretion of enzymes in the human pancreas without influencing the production of fluid and bicarbonate. the degree of inhibition is the same in a juice stimulated by secretin alone and by secretin plus pancreozymin-cholecystokinin or caerulein. thus the endogenous and the exogenously applied pancreozymin is inhibited in its action. the secretion of enzymes, which is induced cholinergically by carbamylcholine or insulin hypoglycemia, is not altere ...197664049
effects of synthetic salmon calcitonin on gastric secretion and ulcer formation in conscious cats and rats.in conscious and unrestrained cats the gastric secretion and ulcer formation induced by i.v. infusion of pentagastrin can be inhibited by synthetic salmon calcitonin given simultaneously. the volume and various constituents of gastric juice are proportionally diminished. pepsin alone is definitely more inhibited, which may be of significance in respect to the mode of action of calcitonin. these effects are dose dependent in the range of 0.01 mug - 1.0 mug/kg/h salmon calcitonin, corresponding to ...197664054
[effects of calcitonin and somatostatin on the stomach and the pancreas -- possible therapeutic principle?]. 197664068
automatic analysis of visual properties in the postero-lateral thalamus of the cat: receptive fields of binocular single units. 197664153
length transients in load clamped cat papillary muscle. 197664159
decreased peroxidase labeling of lateral geniculate neurons following deafferentation. 197764278
dimethylsulfoxide action on fast axoplasmic transport and ultrastructure of vagal axons.the axonal microtubules (mt) are believed to be involved in fast axonal transport (faxt). dimethylsulfoxide (dmso) has a strong stabilizing action on mt in vitro which may account for some of its reported biological effects. dmso at concentrations of 5% disrupts the faxt in a high percentage of axons emanating from the nodosum ganglion in the cat vagus nerve. whereas 5% dmso does not affect the faxt in all axons, 10% dmso blocks all the faxt. the blockage is substantially, but not completely, re ...197764281
contraceptive steroid toxicology in the beagle dog and its relevance to human carcinogenicity.problems associated with the use of the beagle dog in chronic toxicological studies of contraceptive steroids are described. a short review is presented on the occurrence of spontaneous tumours in dogs and in bitches of various breeds. the current status of knowledge of canine reproductive hormones and endocrinology is outlined, together with effects of contraceptive steroids. the pathology and histological classification of spontaneous and induced mammary neoplasia in the dog is discussed and c ...197664332
[relation of vital staining of cerebral cortex tissues to the nature of their blood supply]. 197664335
amine repletion in the reserpinized cat: effect upon pgo waves and rem sleep.selective repletion of 5-ht and catecholamines in the reserpinized cat was used to study the role of these biogenic amines in the regulation of pgo wave activity and sleep. the results include: 1. repletion of 5-ht, following injections of d, l and l-5-htp, suppressed pgores in the pons and visual system. a consistent relationship between drug dose and duration of suppression was established. d-5-htp failed to influence pgores. l and d, l-5-htp also induced a state closely resembling slow wave s ...197764348
focal reflex epilepsy with myoclonus; electrophysiological investigation and therapeutic implications.a middle-aged man suffering from myoclonic jerks of the right arm and leg and occasional grand mal seizures was investigated electrophysiologically. the eeg showed a left central spike focus which could be activated by any stimulus which distorted the biceps, triceps or brachioradialis muscles but skin stimulation was ineffective. electrical nerve stimulation subthreshold to the alpha motoneurone fibres evoked cortical spikes and myoclonic jerks. the evidence supports the hypothesis that the myo ...197764353
identification of cells or origin of non-primary afferents to the dorsal column nuclei of the cat.in order to identify cells of origin in the spinal cord of non-primary afferents to the dorsal column nuclei (dcn), the retrograde transport of horseradish peroxidase (hrp) has been utilized in adult cats. 10 to 30% hrp was injected bilaterally (0.6 mul per side) in the dorsal medulla of nine cats. in most instances the spread of the injected enzyme extended a few millimeters rostrocaudally and infiltrated the dcn as well as other nuclei and fiber tracts. labelled cells in these cases are numero ...197764365
type c virogenes: modes of transmission and evolutionary aspects. 197664381
a comparison of visual pathways in boston and midwestern siamese cats.a genetic mutation in siamese cats causes retinogeniculate fibers representing roughly the first 20 degrees of ipsilateral visual field in each eye to cross aberrantly in the optic chiasm and terminate in the wrong lateral geniculate nucleus (lgn). previous investigations have shown that in the visual cortex this extra representation of ipsilateral visual field can be organized into one pattern in boston siamese cats, another in midwestern. this finding was confirmed here. the possibility that t ...197764478
studies on brugia pahangi. 13. the anthelmintic effect of compounds f151 (friedheim), hoe 33258 (hoechst) and their reaction product.f151 was a potent filaricide against adult brugia pahangi in cats and jirds. hoe 33258 did not kill adult worms in cats but had a marginal effect on adult worms in the peritoneal cavity of jirds. it was not immediately microfilaricidal in cats but the microfilarial counts of treated cats fell within a few weeks of treatment. the reaction product, or mixture, of these two compounds (v5851 = e) was strongly macrofilaricidal in cats and jirds.197664486
protargol impregnation of plastic-embedded semi-thin sections: a simple method to select degenerative areas for electron microscopy.0.5 mu plastic-embedded sections, obtained from aldehyde-osmium fixed rat and cat spinal cord, were impregnated in a 0.5% protargol solution for 24 hours at 56 degrees c. reduction was performed in a sodium sulphite- (5%) hydroquinone (1%) developer. terminals undergoing wallerian degeneration stand out as easily discernible black dots; corresponding osmiophilic degenerative patterns are demonstrated in consecutive thin electron microscopic sections. this simple technique enables successful trim ...197764588
the influence of the embedding medium when staining for electron microscopy: the penetration of stains into plastic sections.using a sectioned-section procedure it was found that only a few structures, e.g. the connective tissue elements, were deeply penetrated by phosphotungstic acid (pta) and uranyl acetate (ua). reynold's lead citrate appeared to penetrate more generally. using stains selective for the embedding medium, and also observing the surfaces of shadowed sections, it was concluded that structures readily penetrated by polar stains were only poorly infiltrated by non-polar embedding media. it is argued that ...197664610
blood/brain barrier and brain oedema in ammonia intoxication. 197764738
is there retrograde axonal transport of tetanus toxin in both alpha and beta fibres? 197764935
[the effect of increased intracranial pressure and subarachnoid hemorrhage on the sympathetic vasoconstrictor nerve activity (author's transl)]. 197664942
[noradrenergic mechanism of experimental cerebral vasospasm (author's transl)]. 197664944
a quantitative electron microscopic study of the ageing human cerebral cortex.a recent quantitative electron microscopic study of biopsy samples of the cerebral cortex of neurologically normal individuals, aged between 15 and 54 years, has shown that atypical inclusions are present in neuronal and glial processes in small but appreciable numbers (rees). it would be of interest to know whether these inclusions accumulate with age. this study therefore applied the same quantitative methods used in the previous study, to autopsy samples of frontal and temporal cortex from 3 ...197665101
immunofluorescent analysis of expression of the rna tumor virus major glycoprotein, gp71, on surfaces of virus-producing murine and other mammalian species cell lines.the specificity of a single rabbit antiserum pool raised against the purified major glycoprotein, gp71, of friend murine leukemia virus was determined for a variety of virus-producing mouse, feline, and gibbon ape cell lines by viable cell membrane immunofluorescence absorption. among murine cells examined, friend gp71 type specificity was shared only with rauscher virus-producing cells, and a group specificity was present for all the murine leukemia virus-producing cells tested. friend and raus ...197765219
prosencephalic mechanisms of ecog desynchronization in cerveau isolé cats. 197765257
electrocorticographic changes induced by topically applied succinylcholine and biperiden. 197765261
behavioral and hippocampal electrical changes during operant learning in cats and effects of stimulating two hypothalamic--hippocampal systems.the electrical activity of the dorsal and ventral hippocampus and of the anterior and posterior neocortex is described and illustrated during the development of trained operant behavior in water-deprived cats learning to bar-press for water reward under three operant conditioning schedules: (a) continuous reinforcement; (b) alternating 10 sec periods of reinforcement and non-reinforcement; and (c) mixed reinforcement and non-reinforcement with special auditory and visual cues. in addition, the c ...197765267
absence of thermoregulatory vasomotor responses during fast wave sleep in cats.the skin temperature of the pinna was recorded in unrestrained cats sleeping at different ambient temperatures. the results show that during fast wave sleep vasomotion is inconsistent with homeothermic regulation as ear skin temperature increases and decreases at low and high ambient temperatures, respectively. the effects of preoptic heating during slow wave and fast wave sleep reveal that a depression of the responsiveness of hypothalamic thermoceptive structures underlies the absence of therm ...197765272
functional organization of the vestibular input to the anterior and posterior cerebellar vermis of cat.1. responses evoked by electrical stimulation (auditory division of the viiith nerve sectioned chronically) and natural stimulation of the vestibular apparatus were recorded in the anterior and posterior cerebellar vermis of cats anesthetized with ketamine or nembutal. under ketamine the functional state of the cerebellar cortex was similar to that of the decerebrate or encéphale isolé preparation. 2. vestibular-evoked responses were found bilaterally throughout the vermis (lob. i-x) and parts o ...197765291
relation between hypotensive effect in cats and reactions in children using normal human immunoglobulin.the paper deals with the rare adverse reactions following administration of normal human immunoglobulins in bulgaria. experimental work has shown that such lots cause hypotensive effect in cats and lead to the release of pharmacologically active substances, measured biologically and spectrofluorometrically. the same immunoglobulins give two peaks of igg aggregates by gel-chromatography and possess high anti-complementary activity. the possible relation between hypotensive effect in cats and reac ...197765303
axonal transport. 197665309
the olivocerebellar projection in the cat studied with the method of retrograde axonal transport of horseradish peroxidase. iv. the projection to the anterior lobe.following injections of horseradish peroxidase (hrp) in the cerebellar cortex of the anterior lobe of the cat, the distribution of labeled cells in the inferior olive was mapped. the findings largely confirm those made previously in studies of olivary retrograde cell loss following cerebellar ablations (brodal, '40b). in addition, they reveal further olivary areas projecting onto the anterior lobe, and permit a more detailed analysis of the pattern in this projection. concerning major points the ...197765365
brain stem afferents to the fastigial nucleus in the cat demonstrated by transport of horseradish peroxidase.although retrograde and anterograde degeneration studies have provided important information concerning brain stem afferents to the fastigal nucleus (fn), these data may be incomplete and should be confirmed by axonal transport methods. attempts were made to inject horseradish peroxidase (hrp) unilaterally into the fn in a series of adult cats. animals were perfused with dextran and a fixative solution of paraformaldehyde and glutaraldehyde in 0.1 m phospate buffer. representative sections were ...197765366
the vestibular complex of the american opossum didelphis virginiana. ii. afferent and efferent connections.we have demonstrated the connectivity of the opossum's vestibular nuclei using degeneration, autoradiographic and horseradish peroxidase techniques and have found it to be generally comparable to that reported for the cat. apart from the primary input described in part i of our study, the cerebellum provides the major source of afferent connections to the vestibular complex. axons from the cerebellar cortex distribute mainly to vestibular areas which receive no primary afferent projections, e.g. ...197765367
identification of diacetylmorphine metabolites in humans.with the techniques of column chromatography, tlc, and glc, morphine, 6-acetylmorphine, normorphine, morphine 3-glucuronide, 6-acetylmorphine 3-glucuronide, and normorphine glucuronide were identified as metabolites of diacetylmorphine (heroin) in the urine of humans administered 10 mg iv/70 kg body weight.197765466
the viscosity of mammalian nerve axoplasm measured by electron spin resonance.1. the microviscosity of the axoplasm of can sciatic nerve was determined by an in vitro electron spin resonance (e.s.r.) method using the spin label tempone. to identify the spin label signal as one arising only from within the axoplasm, ni2+ was used as a line broadening agent. in one series of experiments in nerves with sheath intact the ni2+ ion was shown to eliminate the tempone signal arising from the surface water, and in another series of experiments, with the sheath slit, to eliminate ...197665468
gastrozymin. 197765517
organization of the facial nerve nucleus in the cat.the location of efferent neurons in the brain stem of newborn kittens supplying the facial muscles was studied by means of horseradish peroxidase (hrp) used as a tracer of retrograde protein transport. three to 15 microliters containing 0.3 to 1.5 mg of hrp was injected into the orbicularis oris and orbicularis oculi muscles of six kittens and in the seventh kitten, the ventral ramus of the facial nerve was transected and hrp was instilled on the cut end of the nerve. after a survival time of 24 ...197765707
[experimental cerebral vasospasm after subarachnoid hemorrhage --course and degree of vasospasm-- (author's transl)]. 197765739
[axonal flow of substances in different physiologic and pathologic states of the nervous system]. 197665848
the effect of thermic stress on the somatic reaction of rage and on rapid circling turns, in the cat.an investigation was made of the effect of thermic stress on the somatic rage reaction and on rapid circling turns in cats awake and free to move in a behavioural cage. an increase in room temperature had a two-phase effect on the excitability of the nervous structures stimulated that is able to evoke the somatic rage reaction and rapid circling turns. the first phase, at room temperature 25 degrees-30 degrees c, was characterized by hypoexcitability; the second phase, appearing after longer per ...197665954
release of prostaglandin-like material from isolated cat tracheal muscle by electrical and mechanical stimulation.release of pge-like material has been studied on the isolated continuously-superfused cat tracheal muscle using dynamic bioassay methods. the effluent of transmural electrically-stimulated cat tracheal muscle induced a contraction when superfused over the rat stomach fundus strip. this response did not alter with atropine, methysergide, phentolamine and propranolol but was inhibited by aspirin and sc 19220. the same myotropic activity in the effluent was found when trachea was mechanically stimu ...197665958
on the utility of fourier analysis of left ventricular pressure. 197665969
intracellular ph transients estimated from a physical-chemical model of the cellular acid-base control system. possible effect of the intracellular ph on some parameters of contraction and electrical activation of cardiac cells. 197665970
metabolic and non-metabolic aspects of the influence of lactate on the mechanical and electrical activation of isolated cardiac preparations in condition of extracellular acidosis. 197665973
visual specificity of posterior nucleus in cat's postero-lateral thalamus. 197665974
pharmacodynamic actions of midodrine, a new alpha-adrenergic stimulating agent, and its main metabolite, st 1059.pharmacodynamic actions of alpha-(2,5-dimethoxyphenyl)-beta-glycinamido-ethanol-hydrochloride (midodrine, gutron) and alpha-(2,5-dimethoxy-phenyl)-beta-aminoethanol (st 1059), the main metabolite of midodrine, were investigated in various experimental procedures. midodrine raises arterial blood pressure both after parenteral and enteral administration in animal experiments. midodrine increases peripheral vascular tone when given in doses still ineffective in raising blood pressure. the d(+)-isom ...197666056
axonal transport of labeled material into sensory nerve ending of cat carotid body.the origin of nerve endings on glomus cells in the carotid body has been the subject of much controversy in recent years. specifically, the problem is whether these nerve endings, which contain clear-core ("synaptic") vesicles and mitochondria arise from sensory neurons in the petrosal ganglion or from efferent neurons located in the brain stem or elsewhere. to study this problem, [3h]proline was applied to cat petrosal ganglia, the animals were allowed to survive for 3 h-7 days, and the periphe ...197766087
uridine kinase activities in normal and neoplastic lymphoid cells.both adult (i) and embryonic (ii) forms of uridine kinase have been identified in the transplantable el-4 leukemia of c57bl/6 mice and in the p815y mastocytoma of dba/2 mice. only species i is found in primary tumor cells of lymphoid orgin (virus-induced feline lymphosarcoma, human acute and chronic lymphocytic leukemia) and in normal calf thymocytes and porcine peripheral blood lymphocytes; species i was induced 4-fold upon stimulation of the normal blood lymphocytes with phytohemagglutinin. th ...197766093
the penicillin focus. i. distribution of potential at the cortical surface.the potential field of a penicillin focus of controlled size was recorded from a rectangular array of 12 electrodes occupying a 4 x 6 mm area on the exposed anterior sigmoid gyrus of the cat. the array was made with 2 mm interelectrode spacing of 0.4 mm i.d. glass capillary tubes filled with ringer's in agar, excepting one containing penicillin to create the focus. early in the development of the focus a negative spike appears at the penicillin electrode reaching amplitudes of as high as 3,000 m ...197766131
effects of atropine upon the hippocampal electrical activity in rats with special reference to paradoxical sleep.in freely moving male rats with implanted electrodes, the influence of atropine sulphate (5-30 mg/kg, i.p.) on the hippocampal theta activity was studied with special emphasis on paradoxical sleep (ps). in accordance with previous work with cats and rabbits, atropine was found to inhibit ps, in delaying its first appearance as well as in decreasing the duration of the first ps episode. the hippocampal theta activity during ps was also changed after atropinization. in particular, when rem occurre ...197766134
the results of penicillin g administration of chronic unrestrained cats: electrographic and behavioral observations.intramuscular administration of penicillin g was carried out in a series of 27 chronic cat preparations. in addition to the eeg, the high frequency components of cerebral electrical activity were also recorded from cortical and deep structures. videotape recordings using split-screen technique allowed correlations of the animal's clinical state with the eeg. the results showed that 'spike-wave' type activity occurred earliest in the cortex. the discharges were also best formed in cortical and th ...197766135
characteristics of the experimental reflex sleep induced by vago-aortic nerve stimulation.1. electrical stimulation of the baroceptive fibres of the vago-aortic trunks (va st) reflexly induces, in the ecéphale isolé (ei) cat preparation, a complete sleep cycle characterized by a progression of all stages of sleep previously described in chronic preparations (slow wave sleep, phasic slow wave sleep, paradoxical or rem sleep). some qualitative and quantitative characteristics of this "vago-aortic" (va) sleep are analysed and compared with those obtained in ei cats previously deprived o ...197766139
temporo-spatial pattern of subcortical spike activity in kindling epilepsy. a statistical approach.recording electrodes were implanted stereotaxically in limbic and thalamic structures and the mesencephalic reticular formation in twelve cats. the animals were submitted to daily stimulation of the left amygdaloid nucleus following the technique for the kindling procedure, always combined with 5 h 30 min post-stimulation monitoring. after about 18 days, generalized convulsive activity was established. the following results concerning the quantitative evolution of spontaneously occurring interic ...197766140
localization of abductor and adductor fibers in the kitten recurrent laryngeal nerve: use of a variation of the horseradish peroxidase tracer technique. 197766152
origin of diabetes insipidus and hypernatremia. 197666641
[motorization and cancer risk. position in regard to the article of w. blumer and th. reich in the schweiz. med. wschr. 106, 15 (1976) and former publications of said authors]. 197766748
[projections of the cerebellum through the superior pedunculus cerebellosus. study of a new technic to show terminal degenerated structures]. 197566791
some data on the golgi architecture of visual areas and suprasylvian gyrus in the cat. 197666813
feline panleukopaenia virus and mink enteritis virus. a serological study. 197766862
analysis of serum proteins in clinically normal pet and colony cats, using agarose electrophoresis.the relative and absolute values of the electrophoretic fractions of serum proteins of 50 clinically normal cats were determined, using agarose as the supporting matrix. six protein fractions were clearly and consistently resolved: albumin and alpha1-, alpha2-, beta1-, beta2-, and gamma-globulins. in many cats, the alpha1-, alpha2-, and beta2-fractions were each divided into 2 subfractions. cats which lived in a research colony environment were found to have significantly increased levels of gam ...197766888
the coming of age of tumor virology: presidential address. 197766977
spike-wave rhythms in cat cortex induced by parenteral penicillin. i. electroencephalographic features.surface and depth recordings were made in 21 cats with generalized, parenteral penicillin induced epileptiform activity often assuming spike-wave forms, to obtain information on the structural substrate of "spontaneous" spike-wave rhythms. recordings were made from neocortex, medial and lateral thalamus, hippocampus and brainstem reticular formation. epileptiform activity first appeared in cortex and subsequently projected to depth structures. occasionally, focal discharges could be seen in subc ...197767022
spike-wave rhythms in cat cortex induced by parenteral penicillin. ii. cellular features.epileptiform potentials, consisting of spontaneous, generalized bursts frequently assuming a 3/sec spike-wave form and tonic clonic electrographic seizures were produced in 32 lightly anesthetized cats by parenteral injections of penicillin. the activity of 83 identified pyramidal tract cells and 207 cortical non-pyramidal tract cells was correlated with the surface eeg. the majority of both cell types generated depolarizations and action potentials with the eeg spike. hyperpolarizations, during ...197767023
pathophysiology of generalized penicillin epilepsy in the cat: the role of cortical and subcortical structures. i. systemic application of penicillin.the mechanism of precipitation of generalized epileptiform discharges in feline generalized penicillin epilepsy, a model of human generalized corticoreticular ('centrencephalic') epilepsy, was studied in acute and chronic experiments in cats with implanted skull and intracerebral electrodes. single shock and low frequency repetitive stimulation of subcortical sites from which prior to penicillin administration spindle activity and recruiting responses could be elicited, readily triggered epilept ...197767024
the action of lithium carbonate on the sleep-waking cycle in the cat.the therapeutic effect of lithium carbonate on manic-depressive psychosis is now universally recognized. in view of this positive action on the cyclic endogenous manifestations, it was interesting to investigate the possible effects of lithium on the sleep-waking cycle in the cat. polygraphic recording from three adults cats was carried out during 24 h periods before, and on different days after, beginning treatment with lithium carbonate. with low doses (30 and 50 mg/kg/day), important morpholo ...197767027
sequential discharges of phasic waves in the pontine oculomotor system during paradoxical sleep in chronic mesencephalic and decorticate cats.the temporal organization of sequences of phasic activity (pgo) in the pontine oculomotor system during paradoxical sleep was compared in normal cats, in "mesencephalic" preparations, and in completely decorticated animals. after both types of operation, pgo discharges lost their random character, becoming grouped in bursts separated by long intervals. these observations suggest that the cerebral cortex is involved in the regulation of patterns of pgo sequences.197767032
[effect of lanthanum sulfate on cardiac activity and blood supply].in concentration of 1:50 000, 1:25 000 and 1:1000 lanthanum sulphate is shown to reduce and in that of 1:100 -- to increase the amount of perfusion fluid from the vessels of an isolated and arrested rabbit heart. in doses of 20--40 mg/kg introduced intravenously it tended to increase the coronary circulation rate, this being attended by an insignificant fall of the arterial pressure. in these doses the compound did not change significantly the heart rate, but prevented the development of pituitr ...197767054
cyclic amp in dental and periodontal tissues during tooth eruption in kittens.cyclic adenosine 3',5'-monophosphate (camp) concentrations and cellular distribution were studied in dental and periodontal tissues during tooth eruption in kittens. although the mean levels of camp around developing teeth were similar in all the tissue samples, there were marked differences in camp stainability of tissues apical and occlusal to the erupting teeth.197767130
permeability studies on taenid metacestodes: i. uptake of proteins by larval stages of taenia taeniaeformis, t. crassiceps, and echinococcus granulosus.host immunoglobulins of several different classes were detected within the bladder fluids of taenia taeniaeformis, t. crassiceps, and echinococcus granulosus. radioiodinated proteins were taken up in vitro by larvae of both t. taeniaeformis and t. crassiceps and were shown to retain their physicochemical and antigenic characteristics. rates of uptake were similar in the 2 species and were not related to the molecular weight of the proteins. immunoglobulins were taken up both in vitro and in vivo ...197767206
bromocriptine, gastric acid output, and gastrin secretion. 197767306
cat-scratch fever skin-test antigen. 197767328
a possible association between house pets and multiple sclerosis.29 patients with multiple sclerosis (m.s.) from families in new jersey believed to have more than 1 member with this disease and 29 controls matched for age, sex, neighbourhood, and socio-economic status were questioned about their ownership of pets. no difference in ownership of cats or dogs was found. exposure to small indoor pets (cats or dogs), however, was significantly higher in the m.s. group (p less than 0-001). exposure to small indoor pets was particularly striking during the ten years ...197767471
rapid and easy preparation of prostacyclin. 197767522
[experimental studies on prolonged artificial respiration to brain--effect of 100% o2 and room air--(author's transl)]. 197767571
identification of different size motoneurons labeled by the retrograde axonal transport of horseradish peroxidase.three main groups of motoneurons of different size have been labeled in adult cats by using the method for retrograde axonal transport following injection of horseradish peroxidase in the medial gastrocnemius and soleus muscles. in particular small, medium-size and large neurons which probably correspond respectively to gamma, small alpha and large alpha motoneurons innervating the calf muscles, have been identified and the corresponding area measured.197767590
[mechanism of the effect of the midbrain reticular formation on the hypothalamus-hypophysis-thyroid gland system].the role of the posterior hypothalamic nuclei in the transmission of the influences of the mesencephalic reticular formation upon the thyroid hormone secretion was studied. stimulation of the mesencephalic reticular formation in anesthetized cats was followed by the excitation of the thyroid hormoone secretion: the content of the blood protein-bound iodine was increased. this effect was eliminated after the bilateral coagulation of the posterior hypothalamic nuclei. these findings confirmed the ...197667861
abrogation of resistance to feline oncornavirus disease by immunization with killed feline leukemia virus.four-week-old specific-pathogen-free cats were immunized with a combined vaccine composed of killed feline leukemia virus and killed feline oncornavirus-associated cell membrane antigen-containing tumor cells. immunization induced feline oncornavirus-associated cell membrane antigen antibody titers ranging from 1:32 to 1:256 but did not elicit detectable virus-neutralizing antibody titers. kittens immunized with tumor cells alone developed higher feline oncornavirus-associated cell membrane anti ...197767886
evolutionary relationships between gag gene-coded proteins of murine and primate endogenous type c rna viruses.several low molecular weight proteins of endogenous type c viruses of the rd114/baboon group are compared with the gag gene translational products of endogenous type c viruses of murine origin. the p10 proteins of each virus group are shown to be immunologically and biochemically related, while the p12 proteins of rd114/baboon viruses are demonstrated to share antigenic determinants with murine viral p15. moreover, highly type-specific phosphoproteins, p15 of rd114/baboon viruses and p12 of muri ...197767898
driving of slow oscillations in the somatosensory system of the cat. 197767931
projections to the spinal cord from medullary somatosensory relay nuclei. 197768038
connections of the pretectum in the cat. 197768040
retinal projections in the native cat, dasyurus viverrinus.retinal projections were examined in the native cat, dasyurus viverrinus using fink-heimer material and autoradiography. we found six regions in the brain which receive retinal projections. these are (1) the dorsal lateral geniculate nucleus (2) the ventral lateral geniculate nucleus (3) the lateral posterior nucleus (4) the pretectum (5) the superior colliculus, and (6) the accessory optic system. we did not examine the hypothalamus. the accessory optic system and the lateral posterior nucleus ...197768042
effects of denervation and of axoplasmic transport blockage on the in vitro release of muscle endplate acetylcholinesterase. 197768100
cats, dogs, and multiple sclerosis. 197768208
house pets and multiple sclerosis. 197768295
sulfide silver architectonics of rat, cat, and guinea pig spinal cord. a light microscopic study with timm's method for demonstration of heavy metals.the distribution of heavy metals in the spinal cord of the cat, rat, and guinea pig has been studied histochemically with timm's sulfide silver method. there was considerable variation in the degree of staining of the neuropil. the dorsal horn showed a laminar staining pattern corresponding to the cytoarchitectonic lamination. lamina i in the cat and guinea pig was light. lamina ii in all three species was heavily stained. in the rat and guinea pig it could be subdivided in a ventral and a dorsa ...197768690
biphasic effect of hypercapnia on myocardial contractility. 197768715
[study of the innervation of blood vessels of the digestive organs by fluorescence microscopy].the blood vessels of the samll intestine and the gallbladder were shown to possess a great amount of adrenergic nerve fibres which, when penetrating the thickness of the wall of the above organs, become thinner and the distributed between the tissue structures of the organs as the thinnest monoaxonal network. the method of falck--hillarp--krokhina was used. among the vessel nerves there are perivascular nerves accompanying the vessels along their total legnth, juxtavascular and intramural nervou ...197668767
[hypothalamo-amygdaloid connections of cat's brain].under study were the afferent connections of the cat's amygdala nuclei with the hypothalamus (nauta's method) in parallel with studying geometrical parameters of the afferent fibre endings in these nuclei by the golgi method. it has been shown that the medial hypothalamus gives the beginning to a small amount of fibres running to the medial group of the amygdala nuclei; dissipated solitary fibres run to the large- and small-cellular parts of the basal nucleus. a considerable amount of fibres run ...197668768
effect of temperature and caffeine on the interval-strength relationship of mammalian ventricular myocardium.in isolated cat heart papillary muscle electrically driven at the basic rate of 30 per min the effect of change in temperature (37 degrees c vs. 30 degrees c) and caffeine upon post-extrasystolic potentiation (pep) phenomenon was studied. at 30 degrees c the basic tension developed by the regular contraction increased an average of (s +/- sm) 23 +/- 5.2% as compared to 37 degrees c. furthermore at 30 degrees c, the curve relating the magnitude of pep to the interval (msec) between regular and pr ...197768780
[study of the vagal innervation of the cat stomach by means of retrograde axoplasmic transport of horseradish peroxidase--on the localization of the origins of the preganglionic fibers]. 197768782
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