Publications
| Title | Abstract | Year Filter | PMID(sorted ascending) Filter |
|---|
| [spirura guianensis (ortlepp, 1924), parasite of philander opossum quica (temminck, 1825) in the state of rio de janeiro, brazil (nematoda, spiruridae)]. | 1976 | 981729 | |
| [coexistence of nematodes trichostrongyloidea in marsupials from french guyana (author's transl)]. | analysis of the helminthofauna of two didelphis marsupialis, compared to that of a metachirops opossum from the same area, studied by durette-desset, 1974. except for their similarities in the general repartition of the species, the two marsupials are easily differentiated: the dominant species is not the same. the location of common or "vicariant" species is stable. in opposition to former notions, the fauna appears to be composed of but one lineage, except for moennigia, which would appear as ... | 1976 | 984667 |
| leptospirosis in wildlife in brazil: isolation of a new serotype in the pyrogenes group. | a new leptospiral serotype in the serogroup pyrogenes is described. the strain was isolated from one gray "four-eyed" opossum (philander opossum). it is proposed that the serotype be designated guaratuba, strain an-7705. the isolations of serotypes ballum from the south american field mouse (akodon arviculoides), szwajizak and icterohaemorrhagiae from the north american opossum (didelphis marsupialis), and grippotyphosa from many other wild animal species as well as domesticated animals are also ... | 1975 | 1163877 |
| natural anti-snake venom proteins. | the resistance of several animals to snake venom has been reviewed. some general concepts are introduced to allow the comparative evaluation of the resistance of different animals studied by different investigators. the purification and properties of several factors isolated from the serum of different animals by some researchers are described: trimeresurus flavoviridis (omori-satoh et al., 1972); vipera palaestinae (ovadia et al., 1975, 1977); sigmodon hispidus (pichyangkul and perez, 1981); di ... | 1991 | 1801313 |
| the penis morphology of the four-eyed opossum philander opossum. | the penis of the philander opossum is found in post-scrotal position and attached to the schiatic arch by means of a suspensory ligament. the bulk of the penile musculature is formed by the ischio-cavernosus (ic) and bulbo-spongiosus (bs) muscles, which converge caudo-medially to join the radix penis. the paired levator penis muscles are encaised in the radix and fuse to each other ventrally to the urethra forming a long tendon. the erectile tissue arisen from the bs forms the corpus spongiosum ... | 1990 | 2260766 |
| release of sarcoplasmic enzymes from skeletal muscle by bothrops jararacussu venom: antagonism by heparin and by the serum of south american marsupials. | the venom of b. jararacussu induced a time- and dose-dependent (2-100 micrograms/ml) increase in the rate of release of sarcoplasmic enzymes (ck and ldh) from isolated rat and frog muscles. this effect, which we attribute to sarcolemmal damage by the venom, persisted in a ca2+-free media, suggesting that phospholipase a activity was not required. the venom-induced enzyme release from the isolated muscles was reversibly inhibited by the sera (1-10 microliters/ml) of the marsupials didelphis marsu ... | 1988 | 3347934 |
| [topography and structure of the stylohyoid muscle in mammals]. | topography and structure of the musculus stylohyoideus (msh) have been studied in 78 species of mammalia from 12 orders. the muscle in question has specific peculiarities not only in its position and fixation, but also in a great variability of its structure. the msh is not revealed in philander opossum, lagostrophus fasciatus, guinea pig, meriones eversmanni, rhombomys opimus, nyctereutes procyonoides, thos aureus, mastelidae. various pathways of development and different functional loading def ... | 1988 | 3408352 |
| [anatomic and histological aspects of the perianal glands of the four-eyed opossum philander opossum linnaeus, 1758]. | 1987 | 3438506 | |
| [natural hosts of trypanosoma cruzi in french guiana. high endemicity of zymodeme 1 in wild marsupials]. | during an epidemiological survey in french guiana, three species of marsupiala were found infected by trypanosoma cruzi with high infection rates (30,8% for didelphis marsupialis). six triatomine bug species were recorded, five of them being well known vectors of chagas' disease. iso-enzyme characterization of 22 stocks isolated (16 from d. marsupialis, 3 from philander opossum and 3 from rhodnius prolixus) revealed that they were all related to zymodeme 1 of miles. the silvatic cycle is endemic ... | 1985 | 3923891 |
| neurohypophyseal hormones as evolutionary tracers: identification of oxytocin, lysine vasopressin, and arginine vasopressin in two south american opossums (didelphis marsupialis and philander opossum). | the neurohypophyseal hormones of two south american opossums (didelphis marsupialis and philander opossum) were isolated by molecular sieving and preparative high-pressure liquid chromatography (hplc). one oxytocin-like and two vasopressin-like peptides were found in each species. these peptides have been identified by their amino acid composition and by their retention time in hplc. oxytocin, lysine vasopressin, and arginine vasopressin have been characterized in both species. lysine vasopressi ... | 1985 | 3979811 |
| histology and carbohydrate histochemistry of the prostate gland of the brazilian four-eyed opossum (philander opossum linnaeus, 1758). | the histology as well as glycogen and mucosubstances were described in the cranial, middle and caudal segments of the disseminate prostate of the philander opossum. the prostate tubuli show external, medium and internal zones. the stroma presents few thin colagenous fibers while the reticular fibers form a well developed network around the glands. the elastic fibers are scant and only observed amidst the excretory ducts (internal zones). the cranial segment is formed by the narrowest tubuli of t ... | 1985 | 4096402 |
| parasitic mites of surinam. iv. archemyobia philander spec. nov. (myobiidae: trombidiformes) from philander opossum. | 1972 | 4668050 | |
| [trypanosoma cruzi reservoirs and wild vectors. 48. natural infection of the marsupial philander opossum quica (temminck, 1825) by t. cruzi]. | 1971 | 5003570 | |
| the placenta of the four-eye opossum (philander opossum). | 1969 | 5346723 | |
| sex chromatin in somatic cells of the philander opossum quica (temminck, 1827, marsupialia). | 1966 | 5958870 | |
| histology, glycogen and mucosubstances histochemistry of the bulbo-urethral glands of the philander opossum (linnaeus, 1758). | the histology and histochemistry of glycogen and mucosubstances were studied in the 3 pairs of bulbo-urethral glands (cowper's glands) of the philander opossum. the glands are covered externally by connective tissue and below it by striated muscle. the stroma is scant in elastic fibers whereas the reticular ones form a delicate network around the adenomeres. the lateral and intermediate bulbo-urethral glands are formed by long and ramified tubuloalveoli presenting thin wall when filled with homo ... | 1984 | 6206752 |
| six new leptospiral serovars isolated from wild animals in peru. | six new serovars of leptospira interrogans were isolated from opossums (didelphis marsupialis and philander opossum) trapped in the peruvian jungle. the proposed names, type strain designation, and serogroup of the serovars, respectively, were: huallaga, strain m-7, djasiman serogroup; luis, strain m-6, tarassovi serogroup; machiguenga, strain mmd-3, icterohaemorrhagiae serogroup; rioja, strain mr-12, bataviae serogroup; rupa rupa, strain m-3, sejroe serogroup; and tingomaria, strain m-13, cynop ... | 1984 | 6470106 |
| two multigene families for marsupial neurohypophysial hormones? identification of oxytocin, mesotocin, lysipressin and arginine vasopressin in the north american opossum (didelphis virginiana). | oxytocin, mesotocin ([ile8]-oxytocin), lysipressin ([lys8]-vasopressin) and arginine vasopressin have been identified in the north american opossum (didelphis virginiana) by amino acid composition and high pressure liquid chromatography. the same peptides with the exception of mesotocin have previously been found in two south american opossums (didelphis marsupialis and philander opossum). although a dual heterozygocity could also explain the simultaneous presence of oxytocin/mesotocin on one ha ... | 1984 | 6477584 |
| 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 |
| isolation and partial characterization of an anti-bothropic complex from the serum of south american didelphidae. | an anti-bothropic fraction (abf) with anti-bothrops jararaca venom activity tested in mice was isolated from the serum of some south american didelphidae (didelphis marsupialis, philander opossum and lutreolina crassicaudata) by deae-sephacel chromatography. abf from d. marsupialis was shown to be 12 times more active in protection assays on a weight basis than the serum proteins. a similar fraction obtained from metachirus nudicaudatum serum was shown to be inactive. an anti-bothropic complex ( ... | 1994 | 7846694 |
| genetic exchange as a possible source of genomic diversity in sylvatic populations of trypanosoma cruzi. | thirty six stocks of trypanosoma cruzi isolated from sylvatic mammals (32 didelphis marsupialis and one philander opossum) and triatomine bugs (rhodnius robustus and one unidentified bug) in the amazonian forest by carajas, brazil were characterized by isoenzyme and random amplified polymorphic dna (rapd) analysis as belonging to principal zymodeme '1 (z1). two different homozygous phenotypes and the corresponding heterozygous phenotype were found for phosphoglucomutase with an observed frequenc ... | 1996 | 8615458 |
| humoral immune response kinetics in philander opossum and didelphis marsupialis infected and immunized by trypanosoma cruzi employing an immunofluorescence antibody test. | philander opossum and didelphis marsupialis considered the most ancient mammals and an evolutionary success, maintain parasitism by trypanosoma cruzi without developing any apparent disease or important tissue lesion. in order to elucidate this well-balanced interaction, we decided to compare the humoral immune response kinetics of the two didelphids naturally and experimentally infected with t. cruzi and immunized by different schedules of parasite antigens, employing an indirect fluorescence a ... | 1999 | 10348985 |
| a comparative study of lymph node mast cell populations in five marsupial species. | in order to determine whether different subpopulations of mast cells exist, mast cells of mandibular and axillary lymph nodes from five species (didelphis aurita, metachirus nudicaudatus, philander opossum, marmosops incanus and gracilinanus agilis) of south american marsupials were studied. our results showed that mast cells present in the connective tissue of the capsule and septa (ctmc) were similar to those described for eutherian mammals. however, a population of mast cells that was present ... | 1999 | 10481303 |
| microsatellite markers in the common grey four-eyed opossum (philander opossum: didelphidae, marsupialia). | 2000 | 10972787 | |
| (t2ag3)n telomeric sequence hybridization suggestive of centric fusion in karyotype marsupials evolution. | it has been suggested that the karyotype of the marsupials derived from a low diploid number (2n = 14) which originated, through fissions of biarmed chromosomes, the karyotypes with a higher 2n. the telomeric sequence (t2ag3)n was in situ hybridized to the chromosomes of gracilinanus microtarsus and g. emiliae, micoureus demerarae and marmosa murina, species with 2n = 14, in monodelphis sp., m. domestica, m. kunsi and m. brevicaudata with 2n = 18, and in lutreolina crassicaudata, didelphis albiv ... | 2000 | 11294606 |
| porrorchis nickoli n. sp. (acanthocephala:: plagiorhynchidae) from mammals in southeastern mexico, first known occurrence of porrorchis in the western hemisphere. | porrorchis nickoli n. sp. is described from the intestine of the gray four-eyed opossum philander opossum (type host), the virginia opossum didelphis virginiana, the common opossum didelphis marsupialis, and the white-nosed coati nasua narica. hosts were collected in southeastern mexico in the los tuxtlas region of the state of veracruz (type locality) and in the states of tabasco and chiapas. this new species is distinguished from other porrorchis species by its small proboscis (0.286-0.428 mm ... | 2002 | 12058721 |
| [new host of trypanosomes of the types cruzi and rangeli found in the state of para: the marsupial metachirops opossum opossum]. | 1958 | 13815177 | |
| chromosomes of american marsupials. | studies of the chromosomes of four american marsupials demonstrated that caluromys derbianus and marmosa mexicana have a diploid number of 14 chromosomes, and that philander opossum and didelphis marsupialis have a diploid number of 22. the karyotypes of c. derbianus and m. mexicana are similar, whereas those of p. opossum and d. marsupialis are dissimilar. if the 14-chromosome karyotype represents a reduction from a primitive number of 22, these observations suggest that the change has occurred ... | 1965 | 14287602 |
| ontogenesis of the scapula in marsupial mammals, with special emphasis on perinatal stages of didelphids and remarks on the origin of the therian scapula. | the development of the scapula was studied in embryonic and postnatal specimens of monodelphis domestica and perinatal specimens of philander opossum, caluromys philander, and sminthopsis virginiae using histological sections and 3d reconstructions. additionally, macerated skeletons of postnatal m. domestica were examined. this study focused on the detachment of the scapulocoracoid from the sternum and on the acquisition of a supraspinous fossa, a supraspinatus muscle, and a scapular spine, all ... | 2003 | 14518007 |
| po41, a snake venom metalloproteinase inhibitor isolated from philander opossum serum. | po41 was isolated from philander opossum serum by deae-sephacel, phenyl superose and superdex 200 chromatographies and showed a molecular mass of 41,330 da by maldi-tof ms. molecular masses of 81.5 and 84.5 kda were obtained by size exclusion chromatography and dynamic laser light scattering, respectively, suggesting that po41 is dimeric. its isoelectric point was estimated to be lower than 3.5. po41 presented similar amino terminal sequence to those of dm40 and dm43, two antihaemorrhagins previ ... | 2003 | 14602117 |
| oxygen consumption and thermoregulatory responses in three species of south american marsupials. | oxygen consumption (vo(2)), body temperature (t(b)) and wet thermal conductance (c(wet)), under resting conditions, exposure to low ambient temperature (t(a)) and during sustained exercise (treadmill running) were measured in three phylogenetic related (same family; didelphidae) south american marsupials possessing similar body masses: caluromys philander (arboreal/fruit and insect eating), philander opossum (terrestrial and arboreal/omnivore), and metachirus nudicaudatus (terrestrial/omnivore). ... | 2007 | 17020814 |
| infection by trypanosomes in marsupials and rodents associated with human dwellings in ecuador. | small mammals trapped in domestic and peridomestic environments of rural ecuador were screened for trypanosome infection by direct microscopy and hemoculture. identification of species of trypanosomes was then performed by morphological characteristics and by polymerase chain reaction (pcr) assays. of 194 animals collected, 15 were positive for infection (7.73%). eight (4.12%) were infected with trypanosoma cruzi (1 of 33 didelphis marsupialis; 7 of 61 rattus rattus). eleven r. rattus (18.03%) h ... | 2006 | 17304802 |
| precocity of gnathostoma turgidum in naturally infected four-eyed opossum philander opossum pallidus from temascal, oaxaca, mexico. | two female advanced third-stage larvae of gnathostoma turgidum recovered from the liver of one naturally infected four-eyed opossum philander opossum pallidus collected in oaxaca, mexico, were morphologically examined. because of some characteristics, the larvae do not fit into the typical advanced third-stage. the body shows a size at least three times larger than expected and rows of spines only in the anterior part of the body surface. consequently, in this research, we document for the first ... | 2010 | 19936791 |
| structure of parasite component communities of didelphid marsupials: insights from a comparative study. | abstract the parasite fauna of the gray four eyed opossum and the common opossum in camp du tigre, french guiana is herein characterized. nine species from the gastrointestinal system were recovered from both species, which shared 80% of their parasites. the parasite fauna comprised several monoxenous species (63%) and was dominated by a. raillieti, which exhibited high levels of prevalence and abundance in both communities. only 2 species (moennigia sp. and spirura guianensis) had been recorded ... | 2011 | 21506798 |
| trypanosoma cruzi among wild and domestic mammals in different areas of the abaetetuba municipality (pará state, brazil), an endemic chagas disease transmission area. | the presence of acute chagas disease (acd) due to oral transmission is growing and expanding in several south american countries. within the amazon basin, the abaetetuba municipality has been a site of recurrent cases spanning across distinct landscapes. because chagas disease is primarily a zoonotic infection, we compared the enzootic trypanosoma cruzi transmission cycles in three different environmental areas of abaetetuba to better understand this new epidemiological situation. philander opos ... | 2013 | 23261089 |
| new host records of ixodes luciae (acari: ixodidae) in the state of para, brazil. | the aim of this paper is to record new hosts for ixodes luciae sénevet in the state of para, brazil, and present a case of malformation (teratogeny) in a nymph of this species. the new host records are marmosa murina (parasitized by females) and philander opossum (parasitized by nymphs). one of these nymphs showed malformation in the posterior margin of the opisthosoma resulting in a heart shaped posterior end. | 2013 | 24252962 |
| serologic evidence of canine parvovirus in domestic dogs, wild carnivores, and marsupials in the argentinean chaco. | the transmission of pathogens between domestic dogs and generalist wildlife species may be modified by environmental degradation, biodiversity losses, host densities, and increased contact rates in remnant forest patches. a serologic survey of canine parvovirus (cpv) in rural domestic dogs and wild mammals was conducted in two neighboring rural areas (disturbed and protected) from pampa del indio, northeastern argentina, between 2008 and 2011. a total of 174 domestic dogs and 26 wild mammals-4 c ... | 2014 | 25314822 |
| the araguaia river as an important biogeographical divide for didelphid marsupials in central brazil. | the riverine barrier model suggests that rivers play a significant role in separating widespread organisms into isolated populations. in this study, we used a comparative approach to investigate the phylogeography of 6 didelphid marsupial species in central brazil. specifically, we evaluate the role of the mid-araguaia river in differentiating populations and estimate divergence time among lineages to assess the timing of differentiation of these species, using mitochondrial dna sequence data. t ... | 2015 | 26249652 |
| complete genome sequence of piry vesiculovirus. | piry virus (piryv) is a rhabdovirus (genus vesiculovirus) and is described as a possible human pathogen, originally isolated from a philander opossum trapped in para state, northern brazil. this study describes the complete full coding sequence and the genetic characterization of piryv. the genome sequence reveals that piryv has a typical vesiculovirus-like organization, encoding the five genes typical of the genus. phylogenetic analysis confirmed that piryv is most closely related to perinet vi ... | 2016 | 27216928 |
| ecological drivers of hepacivirus infection in a neotropical rodent inhabiting landscapes with various degrees of human environmental change. | anthropogenic environmental change can impact community and population traits such as species diversity and population densities, which have been shown to influence the prevalence of viruses in wildlife reservoirs. in particular, host species resilient to changes in their natural habitat may increase in numbers, which in turn can affect the prevalence of directly transmitted viruses. we have carried out a survey of small mammal communities in three tropical landscapes differing in their degree o ... | 2018 | 29936542 |
| the extensor assembly in two species of opossum, philander opossum and didelphis marsupialis. | in considering primate and hominoid phylogeny, the fundamental position assigned to opossums is explained partially by the characteristic morphology of their hands and feet. one of the main functional features of the human hand is the ability to make a stabilized arch of the finger. because the extensor assembly plays a key role in establishing an arched finger, the extensor systems of the digits of both the hands and feet were studied in two species of opossum, philander opossum and didelphis m ... | 1979 | 30208677 |
| virulence of trypanosoma cruzi from vector and reservoir in in natura açaí pulp resulting in food-borne acute chagas disease at pará state, brazil. | in recent decades some outbreaks of food-borne acute chagas disease (acd) in humans were identified by clinical and epidemiological characterization after association through the ingestion of açaí pulp probably contaminated with trypanosoma cruzi. whereas belém and abaetetuba stood out as important risk regions for disease transmission, the importance of rhodnius pictipes, and philander opossum for the biological cycle of t. cruzi, and data from agribusiness market of açaí, to study t. cruzi fro ... | 2019 | 30439347 |
| helminth community structure of the gray four-eyed opossum philander opossum (mammalia: didelphidae) in the neotropical portion of mexico. | studies on helminth communities associated with didelphids are scarce; the majority of works have focused at taxonomic level. to increase the ecological knowledge of these host-parasite associations, during march (dry season) of 3 consecutive years (2013-2015) a total of 49 adults of the gray four-eyed opossum (philander opossum) was collected in the neotropical portion of mexico (agua fría, chiapas state) and examined for helminths. the main objectives of this study were to describe the infra- ... | 2019 | 31418650 |