Publications
Title | Abstract | Year Filter | PMID(sorted ascending) Filter |
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fine structure of the prostatic epithelium of the opossum (didelphis virginiana kerr). | 1965 | 4287015 | |
pulmonary adenomatosis in opossums (didelphis virginiana). | 1969 | 4310335 | |
experimental study of pulmonary adenomas in the opossum (didelphis virginiana). | 1971 | 4325695 | |
sedation and anesthesia of the virginia opossum, didelphis virginiana. | 1971 | 4329235 | |
administration of test materials to the neonatal north american opossum (didelphys marsupialis virginiana kerr). | 1971 | 4329243 | |
characteristics of common helminths of the virginia opossum (didelphis virginiana) from north carolina. | 1972 | 4336985 | |
basal-cell tumor in a virginia opossum (didelphis marsupialis). | 1973 | 4351486 | |
the opposum (didelphis virginiana kerr) as a biomedical model. i. research perspective, husbandry, and laboratory technics. | 1974 | 4362893 | |
the opossum (didelphis virginiana kerr) as a biomedical model. ii. breeding the opossum in captivity: facility design. | 1974 | 4362894 | |
the opossum (didelphis virginiana kerr) as a biomedical model. 3. breeding the opossum in captivity: methods. | 2015 | 4362895 | |
the erythrocyte life span in the american opossum (didelphis marsupialis virginiana). | 1974 | 4365338 | |
proceedings: control of steroidogenesis in adrenal tissue from the developing opossum, didelphis marsupialis virginiana. | 1974 | 4374480 | |
pasteurella multocida infection in the opossum (didelphis virginiana). | 1974 | 4374598 | |
effects of incubation temperature on the kinetics of cultured lymphocytes from the opossum, didelphis virginiana. | 1974 | 4435132 | |
interpretation of sex chromosomal rna synthesis in the opossum, didelphis virginiana. | 1972 | 4653583 | |
convergent projection of three separate thalamic nuclei on to a single cortical area. | three distinct sensory-motor nuclei in the thalamus project to parietal cortex in the virginia opossum; the ventral posterior nucleus receives inputs from somatic sensory structures and projects to layers iv and iii, the ventral anterolateral nucleus receives inputs from motor structures and projects to layers iv and iii and inner i, and the central intralaminar nucleus receives inputs from sensory, motor, and other structures and projects to layers vi through outer i. the physiologically define ... | 1973 | 4683125 |
an experimental light and electron microscopic study of cerebellorubral projections in the opossum, didelphis marsupialis virginiana. | 1973 | 4700724 | |
somatotopic organization related to nuclear morphology in the cuneate-gracile complex of opossums didelphis marsupialis virginiana. | 1973 | 4706006 | |
cell cycle determination of phytohemagglutinin-stimulated lymphocytes from the opossum, didelphis virginiana. | 1973 | 4708350 | |
distribution of cerebellar and somatic lemniscal projections in the ventral nuclear complex of the virginia opossum. | 1973 | 4709264 | |
the adrenergic control of lower esophageal sphincter function. an experimental model of denervation supersensitivity. | to evaluate the adrenergic regulation of lower esophageal sphincter (les) function, les pressure, les relaxation during swallowing, and blood pressure were measured in the anesthetized opossum, didelphis virginiana, during intravenous administration of alpha and beta adrenergic agonists and antagonists. studies were done in controls and animals adrenergically denervated with 6-hydroxydopamine. alpha adrenergic agonists (norepinephrine, phenylephrine) increased les pressure and blood pressure, wh ... | 1973 | 4727458 |
diel temperature fluctuations of the virginia opossum (didelphis virginiana). | 1973 | 4744938 | |
methylcholanthrene carcinogenesis in the north american opossum (didelphis virginiana). | 1973 | 4745856 | |
the postnatal development of the liver in a marsupial, didelphis virginiana. 1. light microscopy. | 1973 | 4762131 | |
the motor nucleus of the facial nerve in the opossum (didelphis marsupialis virginiana). its organization and connections. | 1973 | 4784296 | |
induction of a chronic somatosensory epilepsy in the opossum (didelphis virginiana kerr) with an inhibitor of cholesterol biosynthesis. | 1973 | 4798641 | |
eimeria indianensis sp. n. and an isospora sp. from the opossum didelphis virginiana (kerr). | 1974 | 4817974 | |
ovariectomy during gestation in the american opossum, didelphis marsupialis virginiana. | 1974 | 4853513 | |
visual receptive fields from cells of a marsupial (didelphis virginiana) superior colliculus. | 1968 | 4881348 | |
the distribution and control of osmosensitive cells within the hypothalamus of the opossum (didelphis virginiana). | 1969 | 4889623 | |
a review of the anatomy and neurophysiology of the opossum (didelphis virginiana) visual system. | 1969 | 4894785 | |
a stereotaxic atlas of the opossum brain (didelphis virginiana). | 1971 | 4940387 | |
morphology of neuroglia in the hypothalamus of the opossum (didelphis virginiana), armadillo (dasypus novemcinctus mexicanus) and cat (felis domestica). | 1971 | 4944389 | |
a stereotaxic atlas of the opossum brain (didelphis virginiana). | 1971 | 4950276 | |
development of the chemical control of breathing in the virginia opossum. | 1972 | 5024173 | |
a light and electron microscopic study of corticorubral projections in the opossum, didelphis marsupialis virginiana. | 1972 | 5028528 | |
contribution of neocortex to sound localization in opossum (didelphis virginiana). | 1972 | 5029954 | |
development of pulmonary reflexes and pattern of breathing in virginia opossum. | 1972 | 5063396 | |
spino-bulbar, spino-thalamic and medical lemniscal connections in the american opossum, didelphis marsupialis virginiana. | 2016 | 5071890 | |
central distribution of primary afferent fibers of the glossopharyngeal and vagal nerves in the opossum, didelphis virginiana. | 1972 | 5075701 | |
didelphonema longispiculata (hill, 1939) wolfgang, 1953 (nematoda: spiruroidea) and other helminths from the opossum (didelphis marsupialis virginiana) in georgia. | 1971 | 5090983 | |
experimental talipes in the virginia opossum. | 2005 | 5133035 | |
experimental bacterial endocarditis in the opossum (didelphis virginiana). 3. comparison of spontaneously occurring endocarditis with that induced experimentally by pyogenic bacteria and fungi. | it was possible to induce bacterial endocarditis in opossums with single intravenous injections of streptococcus viridans or staphylococcus aureus. fiftyeight percent of those animals given streptococcus viridans developed bacterial endocarditis in which most of the lesions were on the left side of the heart. the experimentally induced streptococcal disease was similar to that which may occur spontaneously in opossums, both with respect to the distribution and structure of the vegetations. singl ... | 1971 | 5133514 |
the habituation of auditory reflexes in the decorticate opossum (didelphis virginiana). | 1971 | 5148514 | |
the red nucleus of the opossum (didelphis marsupialis virginiana): a light and electron microscopic study. | 1971 | 5148971 | |
the contribution of the dorsal lateral geniculate nucleus to the total pattern of thalamic terminations in striate cortex of the virginia opossum. | 1971 | 5148973 | |
the dentition of a 25-day pouch-young specimen of didelphis virginiana (didelphidae: marsupialia). | 1967 | 5233942 | |
spino-cerebellar fibers of the opossum didelphis marsupialis virginiana. | 1971 | 5289710 | |
preliminary estimates of the mean duration of the s-phase in the opossum, didelphis virginiana. | 1969 | 5347641 | |
temperature regulation in the opossum, didelphis marsupialis virginiana. | 1969 | 5392911 | |
a further study of adrenal function in the opossum (didelphis virginiana). | 1969 | 5403614 | |
hypertension in the opossum didelphis virginiana. | 1970 | 5409896 | |
receptive fields of single cells of a marsupial visual cortex of didelphis virginiana. | 1970 | 5412291 | |
the rubro-spinal tract of the opposum (didelphis virginiana). | 1970 | 5412717 | |
the immune response of adult opossums (didelphis virginiana) to the bacteriophage f2. | 1970 | 5416636 | |
rubrobulbar projections of the opossum (didelphis virginiana). | 1970 | 5422531 | |
urea, electrolyte and total solute excretion following water deprivation in the opossum (didelphis marsupialis virginiana). | 1970 | 5426567 | |
experimental bacterial endocarditis in the opossum (didelphis virginiana). ii. induction of endocarditis with a single injection of streptococcus viridans. | 1970 | 5433712 | |
experimental bacterial endocarditis in the opossum (didelphis virginiana). i. valvular changes following a single injection of bacteria in unmodified adult opossums. | 1970 | 5437267 | |
rna synthesis in the sex chromosomes of the opossum, didelphis virginiana. i. female. | 1970 | 5452038 | |
late dna replication in the sex chromosomes of didelphis virginiana. | 1970 | 5452039 | |
the cytoarchitecture of somatic sensory-motor cortex in the opossum (didelphis marsupialis virginiana): a golgi study. | 1970 | 5473290 | |
the venous system of the head and neck of the opossum (didelphis virginiana). | 1970 | 5522110 | |
the areas and layers of corticocortical terminations in the visual cortex of the virginia opossum. | 1971 | 5541350 | |
the pouch gas of the virgina opossum (didelphis virginiana). | 1971 | 5552772 | |
the striatum of the opossum, didelphis virginiana. description and experimental studies. | 1967 | 5582292 | |
retrograde degeneration study of somatic sensory thalamocortical connections in brain of virginia opossum. | 1968 | 5638868 | |
studies of a primitive mammalian spleen, the opossum (didelphis virginiana). | 1968 | 5666529 | |
hemograms of laboratory-confined opossums (didelphis virginiana). | 1968 | 5680429 | |
the effect of some pituitary hormones on progesterone synthesis in vitro by the luteinized ovary of the common opossum (didelphis marsupialis virginiana). | 1968 | 5689374 | |
bacterial endocarditis, glomerulonephritis and amyloidosis in the opossum (didelphis virginiana). | 1968 | 5690168 | |
the pattern of neocortical projections to the mesencephalon of the opossum, didelphis virginiana. | 1968 | 5712010 | |
the basilar pontine gray of the opossum (didelphis virginiana). ii. experimental determination of neocortical input. | 1968 | 5733930 | |
efferent tectal pathways of the opossum (didelphis virginiana). | 1969 | 5780528 | |
position reversal training in the virginia opossum: evidence for the acquisition of a learning set. | 1965 | 5825697 | |
[the morphology of the blood-brain barrier in the brain of the opossum (didelphis virginiana)]. | 1965 | 5836802 | |
influence of plasma urea on urine concentration in the opussum (didelphis marsupialis virginiana). | 1965 | 5885950 | |
spontaneous alternation in the virginia opossum. | 1966 | 5912827 | |
somatic sensory representation in the thalamic ventrobasal complex of the virginia opossum. | 1966 | 5961965 | |
the virginia opossum in psychological research. | 1966 | 5981079 | |
colour vision in the virginia opossum. | 1967 | 6031824 | |
afferent connections to neocortex in the opossum (didelphis virginiana). | 1967 | 6034492 | |
interneocortical connections in the opossum, didelphis virginiana. | 1967 | 6035000 | |
dna replication patterns and chromosomal protein synthesis in opossum lymphocytes in vitro. | dna replication patterns were determined in the autosomes and sex chromosomes of phytohemagglutinin-stimulated lymphocytes from the opossum (didelphis virginiana) by employing thymidine-(3)h labeling and high-resolution radioautography. opossum chromosomes are desirable experimental material due to their large size, low number (2n = 22), and morphologically distinct sex chromosomes. the autosomes in both sexes began dna synthesis synchronously and terminated replication asynchronously. one femal ... | 1967 | 6036519 |
steroid production by the normal opossum (didelphis virginiana) adrenal in vitro. | 1967 | 6055283 | |
hypothalamic mechanisms for sexual, aggressive, and other motivational behaviors in the opossium, didelphis virginiana. | 1967 | 6070717 | |
the distribution of glutamic acid decarboxylase immunoreactivity in the diencephalon of the opossum and rabbit. | we have examined the distribution of neurons and terminals immunoreactive for glutamic acid decarboxylase (gad) in the thalamus and adjacent structures of the opossum (didelphis virginiana) and the rabbit and have compared this distribution with the distributions we described previously for the cat and bushbaby (galago senegalensis). the significance of these experiments depends, first, on the fact that gad is the synthetic enzyme for gaba, and therefore that gad immunoreactivity is a marker for ... | 1984 | 6090511 |
spinal projections from the medullary reticular formation of the north american opossum: heterogeneity. | retrograde and orthograde transport techniques show that the nucleus reticularis gigantocellularis pars ventralis and the nucleus reticularis gigantocellularis project the entire length of the spinal cord. double-labelling methods show that some of the neurons in each area innervate both cervical and lumbar levels. there is evidence, however, that neurons in the lateral part of the nucleus reticularis gigantocellularis pars ventralis and the dorsal extreme of the nucleus reticularis gigantocellu ... | 1981 | 6110678 |
the brainstem origin of monoaminergic projections to the spinal cord of the north american opossum: a study using fluorescent tracers and fluorescence histochemistry. | the retrograde transport of fluorescent markers has been combined with the glyoxylic acid and falck-hillarp techniques to identify the origin of monoamine axons within the spinal cord of the north american opossum. catecholamine axons arise from neurons located within the ventrolateral medulla, dorsal to the superior olivary complex, within the dorsolateral and rostrolateral pons and within the periventricular nuclei of the hypothalamus. such neurons are most numerous within the dorsolateral pon ... | 2007 | 6129037 |
comparative aspects of methemoglobin formation and reduction in opossum (didelphis virginiana) and human erythrocytes. | glucose-depleted, nitrite-treated opossum erythrocytes effectively reduce methemoglobin in an environment of physiological saline and added glucose does not accelerate the rate of reduction. in autologous plasma or 25 mm phosphate-buffered saline ph 7.4, added glucose significantly accelerates methemoglobin reduction in glucose-depleted, nitrite-treated opossum erythrocytes. human red cells require added glucose to carry out reduction of methemoglobin and increased phosphate concentration or aut ... | 1983 | 6137318 |
why so many mammalian spermatozoa--a clue from marsupials? | mammals generally ejaculate many more spermatozoa than seem to be needed for fertilization. this apparent profligacy has not been explained, but observations made in marsupials may shed light on it. the virginia opossum, didelphis virginiana, inseminates only about three million spermatozoa, a very low number. as a corollary, relatively few (ca. 13 x 10(6] are stored in each cauda epididymidis. however, some 5% of the spermatozoa that the opossum ejaculates populate the oviduct about 12 h later ... | 1984 | 6145161 |
substance p immunoreactivity in the median eminence of the north american opossum and domestic fowl. | 1980 | 6154507 | |
immunohistochemical localization of substance-p, somatostatin, and methionine-enkephalin in the spinal cord and dorsal root ganglia of the north american opossum, didelphis virginiana. | the occurrence and distribution of substance-p (sp), somatostatin (som), and enkephalin (enk) were studied in the north american opossum, a generalized marsupial. substance-p immunoreactivity was present in the tract of lissauer as well as within lamina i, the outer part of lamina ii, the lateral portion of laminae iii through vii, and lamina x at all spinal levels. although present, it was very spare in the ventral horn. substance-p was also localized within autonomic areas of the thoracolumbar ... | 1981 | 6165743 |
evidence for collateral innervation of the cervical and lumbar enlargements of the spinal cord by single reticular and raphe neurons. studies using fluorescent markers in double-labeling experiments on the north american opossum. | the use of fluorescent markers in double-labeling experiments reveals the presence of reticular and raphe neurons in the opossum's brainstem which innervate both the cervical and lumbar enlargements of the spinal cord by way of axonal collaterals. such neurons were mixed with those innervating either the cervical or lumber enlargement alone and were found within the nuclei reticularis medullae oblongatae dorsalis and ventralis, the nucleus reticularis gigantocellularis, the nucleus reticularis g ... | 1981 | 6167916 |
the distribution of ganglion cells in the retina of the north american opossum (didelphis virginiana). | the distribution of ganglion cells in the retina of the opossum was determined from whole-mounted retinae stained with cresyl violet. isodensity lines were approximately circular with a peak density of 2,000 to 2,700 cells/mm2 in superior temporal retina (area centralis). the total number of retinal ganglion cells was estimated to be 72,000 to 135,000 (mean 101,026) in retinae ranging from 125 to 187 mm2 in total area. three groups of ganglion cells were distinguished on the basis of soma size a ... | 1981 | 6168666 |
conduction of velocity groups in the optic nerve of the north american opossum (didelphis virginiana): retinal origins and central projections. | the axonal conduction velocity groups in the optic nerve of the north american opossum were analyzed electrophysiologically and related to soma size groups of ganglion cells in terms of their retinal origin and laterality of projection. on the basis of analysis of field potentials and single unit responses recorded at the optic disc, three velocity groups were identified (d1, d2, and d3) and estimated to have average conduction velocities of 12, 8, and 5 meters/second. from recordings of the fie ... | 1981 | 6168667 |
evidence for a lack of distinct rubrospinal somatotopy in the north american opossum and for collateral innervation of the cervical and lumbar enlargements by single rubral neurons. | studies using axonal transport techniques on the north american opossum show that rubral neurons innervating the cervical cord are not distinctly separated from those which project to lumbar levels. the absence of clear rubrospinal somatotopy contrasts with that described for the placental mammals studied to date. use of fluorescent markers in double-labeling experiments shows that most rubral neurons in the opossum still innervate either the cervical or lumbar enlargement alone, but that some s ... | 1981 | 6169748 |
a developmental study of substance-p, somatostatin, enkephalin, and serotonin immunoreactive elements in the spinal cord of the north american opossum. | 1983 | 6187780 | |
a double-labelling study of reticular collaterals to the spinal cord and cerebellum of the north american opossum. | injections of horseradish peroxidase into either the spinal cord or cerebellum label neurons in the gigantocellular and lateral reticular nuclei of the north american opossum. in order to determine if neurons which project to the spinal cord and cerebellum are intermingled in these two nuclei and if single neurons provide collaterals to both areas, we have employed fluorescent markers in double-labelling experiments. our results show that reticular neurons innervating either the spinal cord or c ... | 1984 | 6205332 |
a study of overlap and collateralization of bulbar reticular and raphe neurons which project to the spinal cord and diencephalon of the north american opossum. | labeled neurons were found in most reticular and raphe nuclei of the opossum's medulla after horseradish peroxidase (hrp) injections into either the spinal cord or diencephalon. the labeling produced by spinal injections differed somewhat from that produced by diencephalic ones, but hrp-positive neurons were found in what appeared to be comparable areas. in order to study the intermingling of bulbospinal and bulbodiencephalic neurons more directly, we used fluorescent markers (true blue, nuclear ... | 1984 | 6205718 |