Publications

the armadillo, dasypus novemcinctus, in experimental biology.		1966	4225474
husbandry and health problems of armadillos, dasypus novemcinctus.		1969	4240131
histochemistry of mucopolysaccharides in the gastric epithelium of the pyloric region in the dasypus novemcinctus.		2014	4269631
amino acid levels and l-asparaginase and histaminase activities in plasma of the armadillo, dasypus novemcinctus.		1972	4336995
an environmental caging system and maintenance program for the nine-banded armadillo, dasypus novemcinctus.		1972	4343334
crystalline inclusion bodies in the epididymis of the nine-banded armadillo.		1973	4346102
electrographic correlates of sleep behavior in a primitive mammal, the armadillo dasypus novemcinctus.		1973	4350729
fine structure of an edentate (dasypus novemcinctus) male reproductive system: the epididymis.		2014	4375148
clinical and serological response of the nine-banded armadillo (dasypus novemcinctus) to viruses of african swine fever, hog cholera, rinderpest, vesicular exanthema of swine, vesicular stomatitis and foot-and-mouth disease.		1974	4377951
hematologic parameters of the nine-banded armadillo, dasypus novemcinctus.		1972	4404579
[morphological aspects and histochemical studies mucins in xenarthra (dasypus novemcinctus) pancreas (author's transl)].		2014	4535219
[histochemistry of mucin in colon goblet cells of dasypus novemcinctus (author's transl)].		2006	4535221
attempts to establish the armadillo (dasypus novemcinctus linn.) as a model for the study of leprosy. ii. histopathologic and bacteriologic post-mortem findings in lepromatoid leprosy in the armadillo.		1972	4574269
leprosy in the armadillo: new model for biomedical research.	eight of twenty armadillos (dasypus novemcinctus l.) developed severe lepromatous leprosy 3 to 3.5 years after inoculation with viable mycobacterium leprae. a total of 988 grams of lepromas containing an estimated 15 to 20 grams of leprosy bacilli has been harvested from these animals. the large amounts of material now available will permit in-depth studies of the biochemistry and metabolism of the leprosy bacillus, and the animal model should make possible definitive studies on the immunology, ...	1974	4589901
impact of cool temperatures on transformation of human and armadilio lymphocytes (dasypus novemcinctus, linn.) as related to leprosy.		1974	4596004
development of an established cell line derived from dasypus novemcinctus (armadillo), a laboratory animal susceptible to infection by mycobacterium leprae.		1974	4599002
strontium-90 in the exoskeletal ossicles of dasypus novemcinctus.		1972	4654247
some fine structural features of epididymal cells in an edentate, dasypus novemcinctus mexicanus.		1973	4700792
echimyopus dasypus, n. sp., a hypopus from dasypus novemcinctus in panama (glycyphagidae, echimyopinae: sarcoptiformes).		2016	4779918
morphology of neuroglia in the hypothalamus of the opossum (didelphis virginiana), armadillo (dasypus novemcinctus mexicanus) and cat (felis domestica).		1971	4944389
attempts to establish the armadillo (dasypus novemcinctus linn.) as a model for the study of leprosy. i. report of lepromatoid leprosy in an experimentally infected armadillo.		1971	4948218
the motor cortex and corticospinal tract of the armadillo (dasypus novemcinctus).		1971	5112214
comparative studies of the respiratory functions of mammalian blood. vii. armadillo (dasypus novemcinctus).		1971	5133712
the nine-banded armadillo: a model for leprosy and other biomedical research.		2003	5169923
[morphological aspects and histochemical study of polysaccharides on the salivary lingual glands of mammalia. iv. xenarthra (dasypus novemcinctus and bradypus tridactylus)].		2003	5244818
[morphological aspects and histochemical studies of polysaccharides in deep esophageal glands of dasypus novemcinctus].		2003	5252825
[histochemical study of polysaccharides in the colloid of the thyroid glands in mammals: rodents (rattus norvergicus albinus, mus musculus, cavia porcellus, lagomorpha (lepus cuniculus), carnivora (canis familiaris and felis domestica), xenarthra (dasypus novemcinctus)].		1969	5258276
[mucopolysaccharides histochemistry of duodenal glands (brünner) and goblet cells of dasypus novemcinctus].		2000	5277542
neocortical projections to the mesencephalon of the armadillo, dasypus novemcinctus.		1970	5412695
neocortical projections to the pons and medulla of the nine-banded armadillo (dasypus novemcinctus).		1970	5435297
body temperature and electrocardiographic data for the nine-banded armadillo (dasypus novemcinctus).		1971	5581383
hormonal steroids in the armadillo, dasypus novemcinctus. i. oestriol in pregnancy and its in vitro biosynthesis by the placenta.		1967	5630508
progesterone in the corpus luteum and placenta of the armadillo, dasypus novemcinctus.		1968	5673737
pituitary lh content during delayed and post-implantation periods in the armadillo (dasypus novemcinctus).		1969	5788212
the origin, course and termination of corticospinal fibers in the armadillo (dasypus novemcinctus mexicanus).		2003	5805761
the presence of two conceptuses in the uterus of a nine-banded armadillo.		1967	6022636
observations on the sense of taste in the armadillo (dasypus novemcinctus).		1967	6031116
glutamic acid decarboxylase in mycobacterium leprae.	suspensions of mycobacterium leprae purified from the organs (mostly spleen) of experimentally-infected armadillos (dasypus novemcinctus, linn) decarboxylated 1-(14c) glutamic acid liberating 14co2. the reaction was pyridoxal phosphate-dependent and was inhibited by hydroxylamine, suggesting that it is a true amino acid decarboxylase. loss of the activity at higher temperatures indicated the enzymatic nature of the reaction. excess substrate or substrate analogs inhibited the decarboxylase where ...	1983	6137201
attempt to infect the nine-banded armadillo with treponema pallidum.	10 nine-banded armadillos were infected by various routes with treponema pallidum, nichols strain. the animals did not demonstrate visible lesions but 4/7 animals responded with increasing titers of treponemal antibodies. cardiolipin antibodies were not detected.	1983	6337963
mycobacterium leprae infection in nude mice: bacteriological and histological responses to primary infection and large inocula.	previous studies have demonstrated that congenitally athymic, nude mice are highly susceptible to infection with mycobacterium leprae. in this study, we showed that footpad inoculation of nude mice with different inoculum sizes of m. leprae resulted in exponential growth of bacilli until bacillary numbers reached approximately 10(10) bacilli per footpad. there was dissemination of the infection from approximately 10 months after inoculation. when nude mice were compared with thymectomized and ir ...	1983	6339392
leprosy in wild armadillos (dasypus novemcinctus) of the texas gulf coast: epidemiology and mycobacteriology.	a significant prevalence of leprosy has been demonstrated in wild louisiana armadillos. the texas gulf coast still has endemic human leprosy, and recent mores in texas have markedly increased armadillo-human contact. armadillos were screened by physical examination, and by ear-snip and slit-scrape technique. animals that screened "positive" were sacrificed and necropsied under aseptic conditions. liver, spleen, gross lesions, and four groups of lymph nodes were cultured for mycobacteria and were ...	1983	6350581
leprosy in wild armadillos (dasypus novemcinctus) on the texas gulf coast. ultrastructure of the liver and spleen.	recent studies have established that the "naturally-occurring leprosy-like disease of wild armadillos" is, indeed, caused by mycobacterium leprae indistinguishable from m. leprae from human lepromatous leprosy. the present study reports the ultrastructure of the mycobacteria and host response in deep viscera, liver and spleen, in texas armadillos with sylvatic leprosy. evidence for acid-fast bacillary proliferation in these organs and penetration of hepatocytes is given. acid-fast bacilli concen ...	1983	6350703
gaschromatography of constitutive fatty acids in mycobacterium leprae.	a constitutive saturated and monounsaturated fatty acid pattern of mycobacterium leprae, isolated from the liver of a nine-banded armadillo with experimental leprosy, was analyzed gaschromatographically and compared with that of cultured m. lepraemurium, m. avium, m. bovis, strain bcg and m. smegmatis. in comparing the fatty acid pattern thus obtained and the known structure of mycolic acids in these mycobacteria, an experiential rule that each species of mycobacteria has a relatively high conte ...	1983	6353179
an alternative route for infecting armadillos with mycobacterium leprae.	a nine-banded armadillo was inoculated with mycobacterium leprae in both hind footpads. the animals were usually inoculated intravenously, or intradermally in the abdominal skin. profuse multiplication of the bacilli occurred at the injection sites after more than two years. eventually bacteraemia developed, and large numbers of the organisms were found in skin biopsies and in lymph nodes. there was limited dissemination of the bacteria into the spleen and the liver, and peripheral nerve invasio ...	1984	6369076
immunization against leprosy: progress and prospects.	the limitations of the current approach to leprosy control through mass treatment of patients are well recognized. the long incubation period of the disease, the insidious onset, the chronic course, and the need for prolonged treatment have made control a formidable task. the recent years have seen tremendous progress in the field of immunology of leprosy, and the availability of large quantities of mycobacterium leprae, grown in the nine-banded armadillo, has given impetus to the search for a v ...	1984	6370487
ultrastructural features of macrophages of armadillos infected with actively multiplying mycobacterium leprae.	experimental leprosy lesions in the armadillo (dasypus novemcinctus) were studied by freeze etching and ultrathin sectioning. infected macrophages have distinct intracytoplasmic foamy structures in the form of spherical droplets accumulated around multiplying bacilli. this finding is the same as those observed in human lepra cells and nude mice macrophages infected with m. leprae.	1984	6373628
electron microscopic study of leprosy in a mangabey monkey (natural infection).	ultrastructural features of the leproma of a) a naturally infected mangabey monkey, and lepromas and liver of b) a passage mangabey monkey, c) a rhesus monkey, d) an african green monkey, and e) a nine-banded armadillo inoculated with leprosy bacilli isolated from the leproma of a naturally infected mangabey monkey were studied by the freeze-etching technique. the size, shape, and ultrastructural features of leprosy bacilli in the phagolysosomes of macrophages in all of these samples were essent ...	1984	6373629
leprosy--in pursuit of a vaccine.	clinical leprosy is characterized by varying manifestations between tuberculoid and lepromatous leprosy. in the former state the patient is able to elicit a cell-mediated immune response whereas in the latter, there is usually a humoral response. an understanding of this immunological balance is crucial in the search for a vaccine which will control the disease. the development of a possible anti-mycobacterium leprae vaccine has been advanced by the isolation of organisms from the infected tissu ...	1984	6397930
characterization of mycobacterium leprae by lipid analysis.	the lipid composition of the leprosy bacillus, harvested from experimentally infected nine-banded armadillos, strongly supports it status as a distinct species of the genus mycobacterium. phthiocerol dimycocerosate waxes and glycosylated phenophthiocerol dimycocerosates are distinct from those characterised from a number of other mycobacteria. the polar lipids of a single isolate lack diacylated forms of phosphatidylinositol di- and pentamannosides, lipids usually found in most mycobacteria. a s ...	1984	6398576
leprosy in wild armadillos (dasypus novemcinctus) of the texas gulf coast.		2009	6398590
anion-exchange separation for neotropical trypanosomes: a preliminary trial and a description of trypanosoma devei from the tamarin saguinus midas niger.	anion-exchange separation trials using deae-cellulose columns were performed with blood from two single species of marsupial and edentate, three species of rodent and single species of carnivore, primate, cayman and lizard. trypanosoma cruzi was isolated from didelphis marsupialis, dasypus novemcinctus and coendou sp. t. (megatrypanum) devei was isolated from the tamarin saguinus midas niger and the mensural characters of the organism were redescribed. anion-exchange separation was considered to ...	1984	6429961
paecilomyces lilacinus (thom) samson, from systemic infection in an armadillo (dasypus novemcinctus).	paecilomyces lilacinus was recovered in culture from pulmonary lesions and other internal organs of a captive armadillo. impression films and smears of the lung tissue revealed numerous budding yeast-like cells, many of them appearing encapsulated and resembling intracellular forms of histoplasma capsulatum. yeast-like forms developed in culture on appropriate media at 35 degrees c. the armadillo isolate was compared in culture at both 27 degrees c and 35 degrees c with bamboo rat and human isol ...	1984	6539506
attempts to breed the nine-banded armadillo (dasypus novemcinctus) in captivity--a preliminary report.	three pairs of nine-banded armadillos were successfully kept in wire-fenced pens in natural surroundings with light, temperature, and weather as in the farms of louisiana, a natural habitat of armadillos. one female delivered quadruplets after being in the experimental pen for 10 months and 11 days. it is possible that in this experiment breeding of nine-banded armadillos in captivity has been achieved under controlled conditions for the first time.	1984	6541204
leprosy in five armadillo handlers.	five patients with leprosy are presented. each had had extensive and chronic contact with armadillos. no other potential risk factor for the development of leprosy could be identified. since the nine-banded armadillo is a known carrier of leprosy in the southern area of the united states, we believe that these patients may have contracted leprosy from infected armadillos.	1983	6643788
leprosy in wild armadillos (dasypus novemcinctus) on the texas gulf coast: anatomic pathology.	recent studies of the "naturally occurring leprosy-like disease of wild armadillos" establish that the causative bacillus is genetically identical to m. leprae from human sources, and thus the disease is a zoonosis, sylvatic leprosy. a recent survey of 451 wild armadillos from the texas gulf coast demonstrated sylvatic leprosy in 4.66%. this companion study reports the anatomic pathologic changes seen in the 17 leprous and 17 nonleprous armadillos necropsied in that survey. findings support prev ...	1983	6644691
venipuncture sites in armadillos (dasypus novemcinctus).	several venipuncture sites were evaluated in nine-banded armadillos. included were the jugular, subclavian, cephalic, saphenous, and ventral tail veins, as well as cardiac puncture. animals were anesthetized with 25 mg/kg ketamine hydrochloride prior to sampling. all sites yielded adequate blood volumes for hematology and serum chemistry studies.	1983	6684711
isolation of leptospira from wild forest animals in amazonian brazil.	the role of wild, forest animals as reservoirs of leptospira was investigated in pará state, north brazil. 696 animals were examined by culture of kidney tissue; isolates of serovar ballum were made from the rodent proechimys sp. and the opossum didelphis marsupialis; leptospires of the serogroups hebdomadis, grippotyphosa and cynopteri were isolated from the armadillo dasypus novemcinctus, and as yet untyped leptospires were isolated from proechimys and the procyonid carnivore nasua nasua. anti ...	1984	6710564
fibroma in a nine-banded armadillo (dasypus novemcinctus).	an adult male nine-banded armadillo (dasypus nonemcintus) had a large tumour between the first and second phalanges of the right fore-foot. the tumour was of dermal origin, consisted of dense interlacing bundles of collagen, and contained numerous fibroblasts with elongate nuclei and sparse cytoplasm. mitotic figures were not observed, there was no evidence of lipid accumulation, and there was no metastasis to regional lymph nodes or other tissues. electron microscopy showed that the major cells ...	1983	6863608
isolation of non-cultivable acid-fast bacilli in sphagnum and moss vegetation by foot pad technique in mice.	in the former leprosy-endemic coastal area of norway, 122 samples of sphagnum and moss vegetation were collected from 6 biotopes and examined for non-cultivable afb by foot pad inoculation. of the 759 foot pads examined, 20% contained non-cultivable afb. a significantly higher frequency was found in a habitat where sphagnum cuspidatum was preponderant, the sphagnum species from which the maximum yield was obtained. the bacteria were polymorphous, solidly staining afb, which multiplied in passage ...	1980	6988344
chagas's disease in the amazon basin: ii. the distribution of trypanosoma cruzi zymodemes 1 and 3 in pará state, north brazil.	in pará state, brazil, 123 trypanosoma cruzi stocks were isolated from 12 silvatic mammal species, five silvatic triatomine species and individuals with acute chagas's disease. 100 t. cruzi stocks were identified as zymodeme (z) 1, 17 as z3 and 6 as z3 with z1 asat character, but none were t. cruzi z2. z1 was predominantly isolated from arboreal mammals, especially didelphis marsupialis; z3 was mainly found in terrestrial or burrowing mammals, particularly dasypus novemcinctus and monodelphis br ...	1981	7036428
[maintenance of armadillos in captivity and results of the inoculation of mycobacterium leprae].	the authors report their experiences in raising armadillos and the results obtained in inoculating them with m. leprae. they begin by reporting on the origin of the animals, how they were captured, and their efforts until they found the right kind of housing for the armadillos. they also tell of their attempts to develop the correct feeding procedures. the result is the feed used now in their laboratory: chicken feed mixed with bread, eggs, meat and milk. along with this, they report on the way ...	1980	7042562
the mycolic acids of mycobacterium leprae harvested from experimentally infected nine-banded armadillos.	mycolic acid methyl esters were prepared from defatted cells of armadillo-derived mycobacterium leprae and analysed by thin-layer and high-performance liquid chromatography, proton magnetic resonance spectrometry and mass spectroscopy. the first type of mycolic acid characterized was an "alpha-mycolate" having two cis-cyclopropane rings, a 78-carbon main component and an overall size-range of 72 to 83 carbons. ketomycolates, with an 83-carbon main component, were the only other type of mycolate ...	1982	7051928
[hemoglobins xlvi: the primary structure of the alpha-chain of armadillo (dasypus novemcinctus, edentata) hemoglobin (author's transl)].	the complete primary structure of the identical alpha-chains of the two hemoglobin components of armadillo (dasypus novemcinctus) is presented. it was established on the tryptic peptides by automatic edman degradation. the alignment was done according to the homology with human alpha-chains. 25 differences were found between both chains. a comparison of the functional amino acid residues shows one substitution in the surrounding of the heme, there in the alpha 1 beta 1 - and two in the alpha 1 b ...	1982	7076124
circadian rhythms and the effects of exogenous melatonin in the nine-banded armadillo, dasypus novemcinctus: a mammal lacking a distinct pineal gland.	circadian rhythms of body temperature, activity and oxygen consumption were recorded in the nine-banded armadillo, dasypus novemcinctus, a mammal lacking a distinct pineal gland. the rhythms were entrained by light-dark cycles and appeared to be phase-coupled. under constant illumination, the animals displayed free-running circadian rhythms with period lengths of slightly less than 24 hr. melatonin implants caused a lengthening of the free-running period of activity and body temperature. the occ ...	1982	7146136
spontaneous systemic sporotrichosis in nine-banded armadillos (dasypus novemcinctus).		1982	7157106
leishmaniasis in brazil: xvii. enzymic characterization of a leishmania from the armadillo, dasypus novemcinctus (edentata), from pará state.	a comparison of enzyme profiles, by starch-gel electrophoresis, has distinguished a leishmania of armadillos (dasypus novemcinctus), from pará state, north brazil, from leishmania braziliensis braziliensis, l. braziliensis guyanensis, l. mexicana amazonensis, l. donovani sensu lato (from bahia, brazil), and l. hertigi deanei. the parasite was separated from l. b. braziliensis and l. b. guyanensis by 8 of the 14 enzymes used (asat, alat, pgm, gpi, g6pd, pep, mpi and gd), although differences in t ...	1982	7164148
fetal-maternal gradients of steroid hormones in the nine-banded armadillo (dasypus novemcinctus).	gonadal and adrenal steroid hormone levels in plasma were measured in pregnant, non-pregnant and fetal armadillos. progesterone demonstrated the largest placental gradient with levels 6 to 10-fold higher in the fetus. testosterone levels were higher in male and lower in female fetuses, when compared to the respective maternal serum values. dehydroepiandrosterone, and cortisol were consistently high in maternal as compared to matched fetal serum samples whereas the reverse was true for androstene ...	1982	7175817
isolation of histoplasma capsulatum from an armadillo (dasypus novemcinctus) in the eastern amazon of brazil.		1982	7179429
clomiphene-induced ovulation in the 9-banded armadillo (dasypus novemcinctus).	8 armadillos each received 50 mg clomiphene citrate daily for 5 days. 7 of the animals showed an increase in plasma progesterone to a level indicative of ovulation (greater than 10 ng/ml) within 6 days of the last injection. in addition, the administration of clomiphene caused the urogenital smear pattern to change from dioestrous to oestrous.	1980	7193260
nine-banded armadillos in captivity: prevention of losses due to parasitic diseases. some remarks on mycobacteria-free maintenance.		1981	7198627
dipetalonema (dasypafilaria) averyi subgen. et sp. n. (nematoda: filarioidea) from the nine-banded armadillo, dasypus novemcinctus in louisiana.	a new filarial nematode, dipetalonema (dasypafilaria) averyi subgen. et sp. n., is described from the omentum of armadillos (dasypus novemicinctus) for southern louisiana. within the genus, the large buccal cavity, the absence of a gubernaculum, the reduced number of caudal papillae, the large caudal lappets, and the sheathed microfilaria serve to distinguish the subgenus dasypafilaria from other subgenera. the small size of d. averyi (females 5.3-9.5 mm long by 70-90 micrometers wide; males 3.8 ...	1982	7200516
frequency and duration of the stages of the cycle of the seminiferous epithelium of the nine-banded armadillo (dasypus novemcinctus).	the majority of the cross-sections of seminiferous tubules of nine-banded armadillos show only one type of cellular association as in most eutherian and metatherian mammals with scrotal testes. the spermatogenic cycle was divided into 8 stages, in relation to the shedding of the spermatozoa. the relative frequencies (%) of stages 1-8 were, respectively: 16.6, 7.5, 12.9, 9.1, 9.7, 18., 11.7 and 13.6. the duration of the cycle was 8.15 days, as determined by intratesticular injection of [3h]thymid ...	1981	7205779
primary structure of the major beta-chain of armadillo (dasypus novemcinctus) haemoglobin.		1981	7236709
day - night rhythm in plasma melatonin in a mammal lacking a distinct pineal gland, the nine-banded armadillo.		1981	7286636
[pathomorphologic changes in the internal organs of intact and mycobacterium leprae-infected 9-banded armadillos].	the internal organs of nine-banded armadillos were examined histologically before and after inoculation of the animals with m. leprae. 3--4 months after the inoculation two animals developed tuberculoid structures in the lungs, liver and skin. a conclusion is made that experimental leprosy infection in nine-banded armadillos may run its course not only in the lepromatous but also in the tuberculoid form of the disease.	1981	7295954
light microscopic and ultrastructural features of the harderian gland of the nine-banded armadillo.	the harderian gland of the nine-banded armadillo is a mixed, compound tubuloacinar gland located in the medioposterior aspect of the orbit. the gland is lobulated and appears homogeneous in colour and texture. harderian glands of both male and female fluoresce a pale yellow-green, indicating the lack of porphyrins. at the light microscopic level, the gland contains lobules which synthesize different secretory products. the lobules of the gland adjacent to the eyeball (the proximal point) contain ...	1981	7319899
leishmaniasis in brazil: xvi. isolation and identification of leishmania species from sandflies, wild mammals and man in north para state, with particular reference to l. braziliensis guyanensis causative agent of "pian-bois".	a total of 125 wild mammals (14 different species) were examined for evidence of infection with leishmania in an area of primary forest highly endemic for "pian-bois", due to leishmania braziliensis guyanensis, in north pará state, brazil. parasites isolated were characterized biologically, and biochemically on enzymic profiles. l. b. guyanensis was isolated from the viscera of one lesser anteater (tamandua tetradactyla) and one opossum (didelphis marsupialis), and the skin of one rodent (proech ...	1981	7324128
intraspecies differences of resistance against leprosy in nine-banded armadillos.	infection of nine-banded armadillos with decreasing doses of armadillo-passaged leprosy bacilli show that most individuals of this species are susceptible and only about 20 percent are resistant regardless of the size of the infecting bacterial dose. it is pointed out that the intraspecies distribution of resistance to leprosy in human beings and in nine-banded armadillos differs because most individuals of the former species are resistant. attention is drawn to the possibility that the results ...	1981	7334780
mange in newly-imported armadillos (dasypus novemcinctus).		1981	7341837
morphology of the prostate gland in the nine-banded armadillo.		1980	7386163
quantitative investigation of the annual pattern of follicular development in the nine-banded armadillo (dasypus novemcinctus).	mature, non-pregnant, female armadillos (dasypus novemcinctus) were killed throughout the year (3-6/month, n = 54) and both ovaries were examined for follicular development. all normal and atretic follicles > 358 micrometers were counte. total number of normal follicles remained constant from january to june but decreased by 50% in the remaining months except in october and november. follicles > 978 micrometer (those likely to be ovulated) were found during each month but more (> 3/ovary) were p ...	1980	7401036
antibodies to st. louis encephalitis virus in armadillos from southern florida.	from january 1990 through march 1991, 189 armadillos (dasypus novemcinctus) were collected from brevard and glades counties in southern florida (usa). the sera were analyzed for hemagglutination-inhibition (hai) antibodies against st. louis encephalitis (sle) and eastern equine encephalomyelitis (eee) viruses. none of the armadillos had detectable hai antibody to eee virus, but 59 (31%) had antibodies against sle virus. sera from 31 of the hai-positive armadillos contained significant levels of ...	1995	7563416
identification and purification of armadillo (dasypus novemcinctus) immunoglobulins: preparation of specific antisera to evaluate the immune response in these animals.	in this work we describe the purification and characterization of armadillo immunoglobulins. the igm was precipitated using low-strength ionic solution and further purified by filtration through sephadex g-200. the igg was obtained in pure form by precipitation of serum with ammonium sulfate and deae-cellulose ion exchange chromatography. the purity of these immunoglobulins was evaluated by polyacrylamide gel electrophoresis. the results showed 28-kda light chains and 55-kda and 70-kda heavy cha ...	1995	7730720
scanning electron microscopy of the lingual mucosa of the nine-banded armadillo, dasypus novemcinctus.	the lingual mucosa of the nine-banded armadillo, dasypus novemcinctus, was studied by scanning electron microscopy in order to analyse its morphology. the tongue of the armadillo is long and thin, and has filiform, fungiform and vallate papillae. in the anterior part of the tongue and near the vallate papillae, single or bifurcated filiform papillae are found. the vallate papillae are located on the dorsal surface of the middle third of the tongue, and have two or four slender extremities. the f ...	1994	8085659
gnathostomiasis in a wild-caught nine-banded armadillo (dasypus novemcinctus).		1993	8158995
armadillos (dasypus novemcinctus) as a model to test antileprosy vaccines; a preliminary report.	the efficacy of two candidate leprosy vaccines, bcg and a mixture of bcg and killed mycobacterium leprae, was tested in 62 armadillos caught in the wild. the abilities of the vaccines to convert lepromin-negative armadillos to a positive reaction were compared with a group of control animals. both vaccines upgraded subsequent lepromin skin-test histopathology. the conversion results parallel the protection values obtained in some bcg vaccine trials against leprosy in humans. before conducting ex ...	1993	8228437
[the isolation of monoclonal antibodies to strains of mycobacterium leprae passed through laboratory animals].	hybridoma synthetizing monoclonal antibodies (mab) iiie4 has been obtained in hybridization of myeloma p3-x63-ag8. 653 cells and splenocytes from balb/c mice immunized with m. leprae passaged on rats. the mab specificity evaluated by enzyme immunoassay using ultrasonic disintegrates of m. leprae obtained from human, dasypus novemcinctus, rat lepromas as well as mycobacteria of 7 species and e. coli indicated that the mab reacted only with mycobacteria passaged on the rats. they had weak cross re ...	1993	8290533
lepromin responses in recipients of a candidate antileprosy bacterin vaccine (who-immlep mycobacterium leprae killed preparation) in the usa.	identification of the nine-banded armadillo as a potential source of massive numbers of mycobacterium leprae led to the development of a candidate bacterin vaccine for possible immunoprophylaxis.	1993	8444531
nematodes of armadillos in paraguay: a description of a new species aspidodera esperanzae (nematoda: aspidoderidae).	twelve species of nematodes comprising 9 genera were recovered from the gastrointestinal tract of 2 euphractus sexcinctus and 2 dasypus novemcinctus captured in the department of san pedro, paraguay. all armadillos were infected with 1 or more species of nematode. the following nematodes were recovered: mazzia mazzia, spirura guianensis, trichohelix tuberculata, ancylostoma sp., moennigia complexus, moennigia pintoi, ascaris dasypodina, cruzia tentaculata, aspidodera fasciata, aspidodera scoleci ...	1995	8544068
prevalence and identity of sarcocystis infections in armadillos (dasypus novemcinctus).	little is known about the prevalence or identity of sarcocystis species infecting armadillos in north america. sarcocysts were observed in the tongues of 23 (96%) of 24 armadillos collected between 1989 and 1994 from texas, oklahoma, kansas, and arkansas. the identity of the species present was determined in histological sections of tongue from armadillos. sarcocystis dasypi was present in 21 (88%) and sarcocystis diminuta was present in 5 (21%). mixed infections with s. dasypi and s. diminuta w ...	1996	8636867
immune response of armadillos (dasypus novemcinctus). i. use of lectins to identify lymphocyte subpopulations and to evaluate cell proliferation.	lectins have been used to study populations and discrete differentiation stages of lymphocytes. likewise, lectins have been of practical importance in promoting mitogenic stimulation of lymphocytes in numerous species. in this research project, we took advantage of these tools in an attempt to identify specific subsets of peripheral blood lymphocytes obtained from healthy nine-banded armadillos (dasypus novemcinctus). the same cell source served to evaluate mitogenic stimulation. twelve fitc-lab ...	1995	8642218
evolution of lymphocyte populations in armadillos (dasypus novemcinctus) inoculated with m. leprae.	in human leprosy patients there are changes in the percentages of t and b lymphocytes in peripheral blood, and there is a correlation with the clinical characteristics or manifestations of the disease. these phenomena still require clarification regarding the triggering mechanism involved that may lead to one or the other clinical entities. much has yet to be learned about the intricacies of whether the changes in subpopulations of t and b lymphocytes are a causative factor or an effect attribut ...	1996	8690975
ultrastructure of normal armadillo epidermis.	in view of the importance of the nine-banded armadillo (dasypus novemcinctus) in leprosy research, we studied the ultrastructure of the normal epidermis of this species. the three basic cell types of human epidermis were identified in armadillo skin: keratinocytes, melanocytes, and langerhans' cells. the role of langerhans' cells in the human cell-mediated immune system and the description of changes in the number and structure of langerhans' cells in human leprosy make detailed observations of ...	1996	8690976
[trypanosoma cruzi in french guinea: review of accumulated data since 1940].	between 1939 and 1994, nine cases of chagas disease have been reported in french guiana: seven in the acute phase including two that were fatal and two in the chronic phase with cardiac sequellae. a tenth case of transient parasitemia was described but the patient's clinical status was not mentioned. screening by xenodiagnosis revealed one subclinical infection. heart disease is a highly specific manifestation of trypanosoma cruzi infection, this being consistent with the known presence of zymod ...	1996	8767800
nadph-oxidase activity triggered by endocytosis of yeast in circulating phagocytes of nine-banded armadillos (dasypus novemcinctus)		1996	8862272
electron-microscopic study of negative mitsuda reaction in nine-banded armadillos and lessons to be learned.		1996	8862274
reactivity of a population of armadillo lymphocytes with an antibody to human gamma,delta t-cells.	reactivity of lymphocytes from the nine-banded armadillo (dasypus novemcinctus) was examined by flow cytometry using a panel of 16 commercially available fluorochrome-conjugated monoclonal antibodies raised against human or murine leukocyte antigens. the only reactivity observed was with antibody tcrdelta1, directed against a common determinant on the delta chain of the human gamma,delta t-cell receptor. using this antibody, a distinct, bright population of lymphocytes was seen in the peripheral ...	1997	9000044
molecular documentation of polyembryony and the micro-spatial dispersion of clonal sibships in the nine-banded armadillo, dasypus novemcinctus.	a battery of allelic markers at highly polymorphic microsatellite loci was developed and employed to confirm genetically, the clonal nature of sibships in nine-banded armadillos. this phenomenon of consistent polyembryony, otherwise nearly unknown among the vertebrates, was capitalized upon to describe the micro-spatial distributions of numerous clonal sibships in a natural population of armadillos. adult clone mates were significantly more dispersed than were juvenile sibs, suggesting limited o ...	1996	9025312
phylogenetic analyses of mitochondrial dna suggest a sister group relationship between xenarthra (edentata) and ferungulates.	phylogenetic analysis of 12 protein-coding genes from complete mitochondrial dna (mtdna) molecules of various mammals including a xenarthran representative, the armadillo (dasypus novemcinctus), showed that the order xenarthra (edentata) is a sister group to the ferungulates (carnivores, perissodactyls, artiodactyls, cetaceans). morphological and previous molecular analyses have placed the xenarthra basal to other extant eutherians. the present findings are in striking contrast with that underst ...	1997	9214749
axial orthogonal fiber reinforcement in the penis of the nine-banded armadillo (dasypus novemcinctus).	examination of histological sections from flaccid and artificially erected nine-banded armadillo (dasypus novemcinctus) penises confirms that the mammalian corpus cavernosum is the first known biological hydrostat reinforced by collagen fibers arranged at 0 degree and 90 degrees to its long axis. the morphology of this axial orthogonal fiber array affects the mechanical behavior of mammalian penises during erection and copulation. specifically, the axial orthogonal array gives the erect penis a ...	1997	9259123