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Pesquisa : B01.050.150.900.649.313.988.400.600.150.150.710 [Categoria DeCS]
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  1 / 643 MEDLINE  
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PMID:28902879
Autor:Erkenswick GA; Watsa M; Pacheco MA; Escalante AA; Parker PG
Endereço:Department of Biology and Whitney R. Harris World Ecology Center, University of Missouri-St. Louis, Saint Louis, Missouri, United States of America.
Título:Chronic Plasmodium brasilianum infections in wild Peruvian tamarins.
Fonte:PLoS One; 12(9):e0184504, 2017.
ISSN:1932-6203
País de publicação:United States
Idioma:eng
Resumo:There is an increased interest in potential zoonotic malarias. To date, Plasmodium malariae that infects humans remains indistinguishable from Plasmodium brasilianum, which is widespread among New World primates. Distributed throughout tropical Central and South America, the Callitrichidae are small arboreal primates in which detection of natural Plasmodium infection has been extremely rare. Most prior screening efforts have been limited to small samples, the use of low-probability detection methods, or both. Rarely have screening efforts implemented a longitudinal sampling design. Through an annual mark-recapture program of two sympatric callitrichids, the emperor (Saguinus imperator) and saddleback (Saguinus fuscicollis) tamarins, whole blood samples were screened for Plasmodium by microscopy and nested PCR of the cytochrome b gene across four consecutive years (2012-2015). Following the first field season, approximately 50% of the samples collected each subsequent year were from recaptured individuals. In particular, out of 245 samples from 129 individuals, 11 samples from 6 individuals were positive for Plasmodium, and all but one of these infections was found in S. imperator. Importantly, the cytochrome b sequences were 100% identical to former isolates of P. malariae from humans and P. brasilianum from Saimiri sp. Chronic infections were detected as evidenced by repeated infections (7) from two individuals across the 4-year study period. Furthermore, 4 of the 5 infected emperor tamarins were part of a single group spanning the entire study period. Overall, the low prevalence reported here is consistent with previous findings. This study identifies two new natural hosts for P. brasilianum and provides evidence in support of chronic infections in wildlife populations. Given that callitrichids are often found in mixed-species associations with other primates and can be resilient to human-disturbed environments, they could contribute to the maintenance of P. malariae populations if future work provides entomological and epidemiological evidence indicating human zoonotic infections.
Tipo de publicação: JOURNAL ARTICLE
Nome de substância:0 (DNA, Protozoan)


  2 / 643 MEDLINE  
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PMID:28893355
Autor:Duranti S; Mangifesta M; Lugli GA; Turroni F; Anzalone R; Milani C; Mancabelli L; Ossiprandi MC; Ventura M
Endereço:1​Department of Chemistry, Laboratory of Probiogenomics, Life Sciences and Environmental Sustainability, University of Parma, Parma, Italy.
Título:Bifidobacterium vansinderenii sp. nov., isolated from faeces of emperor tamarin (Saguinus imperator).
Fonte:Int J Syst Evol Microbiol; 67(10):3987-3995, 2017 Oct.
ISSN:1466-5034
País de publicação:England
Idioma:eng
Resumo:A novel Bifidobacterium strain, Tam10B , i.e. LMG 30126 , was isolated from emperor tamarin (Saguinus imperator). Cells were Gram-positive, non-motile, non-sporulating, non-haemolytic, facultative anaerobic and fructose 6-phosphate phosphoketolase-positive. Phylogenetic analyses based on 16S rRNA genes as well as multilocus sequences (representing hsp60, rpoB, dnaJ, dnaG and clpC genes) and the core genome revealed that Bifidobacterium Tam10B exhibited close phylogenetic relatedness to Bifidobacterium tissieri DSM 100201 . Comparative analysis of 16S rRNA gene sequences confirmed the phylogenetic results showing the highest gene sequence identity with strain B. tissieri DSM 100201 (96.5 %). Furthermore, genotyping based on the genome sequence of Tam 10B, in combination with phenotypic analyses, clearly showed that strain Tam10B is distinct from each of the type strains of the so far recognized Bifidobacterium species. The type strain Tam10B (=LMG 30126 =CCUG 70655 ) represents a novel species, for which the name Bifidobacteriumvansinderenii sp. nov is proposed.
Tipo de publicação: JOURNAL ARTICLE
Nome de substância:0 (DNA, Bacterial); 0 (RNA, Ribosomal, 16S); EC 4.1.2.- (Aldehyde-Lyases); EC 4.1.2.22 (fructose-6-phosphate phosphoketolase)


  3 / 643 MEDLINE  
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PMID:28703709
Autor:Pienkowska-Schelling A; Wyss F; Baumeyer A; Wenker C; Schelling C
Endereço:Institut für Genetik, Vetsuisse-Fakultät, Universität Bern.
Título:[Chromosomal aberrations in a subfertile cotton-top tamarin].
Título:Chromosomen-Veränderungen bei einem subfertilen Lisztäffchen..
Fonte:Schweiz Arch Tierheilkd; 159(7):387-391, 2017 Jul.
ISSN:0036-7281
País de publicação:Switzerland
Idioma:ger
Resumo:INTRODUCTION: The present case report describes a female cotton-top tamarin which was taken over by the Zoo Basel to form a new breeding pair. The animal demonstrated increased marking behavior without any obvious medical reasons, dominant behavior, failure to become pregnant and its external genitals were ambiguous. A disorder of the sexual development (DSD) was suspected by the zoo veterinarians and in a first step, the chromosomes of the monkey were analyzed. Six cell lines with different karyotypes were observed. The two most frequent cell lines had a 46,XX or a 46,XY karyotype which are normal chromosome complements of female and male cotton-top tamarins, respectively. The other much less frequent cell lines showed numerical aberrations with and without a marker chromosome. Specific biological features of the Callitrichidae, such as natural twinning and genetic chimerism impeded the clarification of the pathogenesis and prevented a reliable prognosis on the fertility of the cotton-top tamarin.
Tipo de publicação: JOURNAL ARTICLE


  4 / 643 MEDLINE  
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PMID:28187657
Autor:Garbino GS; Nogueira MR
Endereço:Pós-graduação, Departamento de Zoologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Avenida Antônio Carlos 6627, Pampulha, 31270-901, Belo Horizonte, Minas Gerais, Brazil.. gstgarbino@hotmail.com.
Título:On the mammals collected by Friedrich Sellow in Brazil and Uruguay (1814-1831), with special reference to the types and their provenance.
Fonte:Zootaxa; 4221(2):zootaxa.4221.2.2, 2017 Jan 17.
ISSN:1175-5334
País de publicação:New Zealand
Idioma:eng
Resumo:From 1814 to 1831, the Prussian naturalist Friedrich Sellow collected 263 mammals in Brazil and Uruguay. Upon receiving the specimens, the curator of the Berlin Zoological Museum, Martin Lichtenstein, removed the original labels and replaced with ones containing more generalized locations. As a consequence, several type specimens have now dubious type localities. We examined these types as well as geographically restricted mammals collected by Sellow. In some cases, there are inconsistencies between the specimen label and the collection catalog regarding the collecting locality. We conclude that the locality information on the lectotype of the tent-making bat Uroderma bilobatum is mistakenly identified, and therefore, we restrict it to "eastern Brazil". We designate a lectoype for Azara's agouti, Dasyprocta azarae, and restrict its type locality to the region travelled by Sellow in São Paulo. Although there are no recent records of the woolly giant rat, Kunsia tomentosus, from its type locality, the species may have been recently extirpated from the area. Two primate specimens supposedly collected by Sellow, a silvery marmoset, Mico argentatus, and a black tamarin, Saguinus niger, occur only in the Amazonia of northern Brazil, outside the route travelled by the naturalist, and are more likely to have been collected by Sieber. Our investigations stress the importance of collecting vouchers for verifying species occurrence records and establishing a solid taxonomy.
Tipo de publicação: JOURNAL ARTICLE


  5 / 643 MEDLINE  
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PMID:28030570
Autor:Savage A; Thomas L; Feilen KL; Kidney D; Soto LH; Pearson M; Medina FS; Emeris G; Guillen RR
Endereço:Conservation Department, Disney's Animals, Science and Environment, Lake Buena Vista, FL United States of America.
Título:An Assessment of the Population of Cotton-Top Tamarins (Saguinus oedipus) and Their Habitat in Colombia.
Fonte:PLoS One; 11(12):e0168324, 2016.
ISSN:1932-6203
País de publicação:United States
Idioma:eng
Resumo:Numerous animals have declining populations due to habitat loss, illegal wildlife trade, and climate change. The cotton-top tamarin (Saguinus oedipus) is a Critically Endangered primate species, endemic to northwest Colombia, threatened by deforestation and illegal trade. In order to assess the current state of this species, we analyzed changes in the population of cotton-top tamarins and its habitat from 2005 to 2012. We used a tailor-made "lure strip transect" method to survey 43 accessible forest parcels that represent 30% of the species' range. Estimated population size in the surveyed region was approximately 2,050 in 2005 and 1,900 in 2012, with a coefficient of variation of approximately 10%. The estimated population change between surveys was -7% (a decline of approximately 1.3% per year) suggesting a relatively stable population. If densities of inaccessible forest parcels are similar to those of surveyed samples, the estimated population of cotton-top tamarins in the wild in 2012 was 6,946 individuals. We also recorded little change in the amount of suitable habitat for cotton-top tamarins between sample periods: in 2005, 18% of surveyed forest was preferred habitat for cotton-top tamarins, while in 2012, 17% percent was preferred. We attribute the relatively stable population of this Critically Endangered species to increased conservation efforts of Proyecto Tití, conservation NGOs, and the Colombian government. Due to continued threats to cotton-top tamarins and their habitat such as agriculture and urban expansion, ongoing conservation efforts are needed to ensure the long-term survival of cotton-top tamarins in Colombia.
Tipo de publicação: JOURNAL ARTICLE


  6 / 643 MEDLINE  
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PMID:27684732
Autor:Price EC; Payne C; Wormell D
Endereço:Durrell Wildlife Conservation Trust, Les Augrès Manor, Trinity, Jersey.
Título:Why do captive pied tamarins give birth during the day?
Fonte:Zoo Biol; 35(6):487-494, 2016 Nov.
ISSN:1098-2361
País de publicação:United States
Idioma:eng
Resumo:Diurnal primates typically give birth at night, when it is presumed that they are safer at a very vulnerable time, and this is reflected in an overwhelmingly nocturnal pattern of delivery in most species of Callitrichidae. However, over half (51.1%) of 88 births to pied tamarins (Saguinus bicolor) at Durrell Wildlife Park occurred during the day (0800-1700), almost always in the afternoon. Nearly three quarters of breeding females (17/23) had at least one diurnal birth, including females from all generations in captivity from wild-caught to fifth captive-born generation, and from all six matrilines represented at Durrell. The proportion of diurnal births has remained relatively stable over time despite management changes. We used generalized linear mixed modeling to investigate several factors that we hypothesized could affect time of birth: maternal experience, season, female rearing history, and whether or not the group was on public display. We fitted all possible models to the data, but none explained more than 7.5% of the variation. Daytime delivery had few statistically significant detrimental effects, although infant survival was somewhat lower and parental rejection increased in diurnal births. Pied tamarins do not seem to fit any of the hypotheses previously put forward to explain exceptions to the typical primate circadian pattern of delivery. Zoo Biol. 35:487-494, 2016. © 2016 Wiley Periodicals, Inc.
Tipo de publicação: JOURNAL ARTICLE


  7 / 643 MEDLINE  
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PMID:27468035
Autor:Barbon AR; Ordóñez IA; Haworth P; Glendewar G; Routh A; Pocknell A
Título:DIAGNOSIS AND MANAGEMENT OF BENIGN PROSTATIC HYPERPLASIA IN A PIED TAMARIN (SAGUINUS BICOLOR).
Fonte:J Zoo Wildl Med; 47(2):609-13, 2016 Jun.
ISSN:1042-7260
País de publicação:United States
Idioma:eng
Resumo:An intact male pied tamarin (Saguinus bicolor) presented with a hunched posture while moving, dysuria, pollakiuria, and hematuria. After diagnostic imaging assessment and prostate biopsy, benign prostatic hyperplasia was diagnosed. Treatments with delmadinone acetate and osaterone caused clinical signs and hematuria to resolve temporarily for a variable period of time. Because of frequent recurrence, elective surgical castration was performed, leading to resolution of the clinical signs.
Tipo de publicação: CASE REPORTS; JOURNAL ARTICLE
Nome de substância:0 (Androgen Antagonists); 0SY050L61N (Chlormadinone Acetate); FR26FSV5EZ (osaterone acetate)


  8 / 643 MEDLINE  
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PMID:27350726
Autor:Tobi M; Thomas P; Ezekwudo D
Endereço:Martin Tobi, Department of Surgery, Aleda E. Lutz VAMC, Saginaw, MI 48601, United States.
Título:Avoiding hepatic metastasis naturally: Lessons from the cotton top tamarin (Saguinus oedipus).
Fonte:World J Gastroenterol; 22(24):5479-94, 2016 Jun 28.
ISSN:2219-2840
País de publicação:United States
Idioma:eng
Resumo:Much has been written about hepatic metastasis and animal models abound. In terms of the human experience, progress in treating this final common pathway, a terminal event of many human malignancies has been relatively slow. The current thinking is that primary prevention is best served by early detection of cancer and eradication of early stage cancers by screening. Some cancers spread early in their course and the role of screening may be limited. Until relatively recently there has not been a pathfinder model that makes the evasion of this unfortunate event a reality. This review discusses such an animal model and attempts to relate it to human disease in terms of intervention. Concrete proposals are also offered on how scientists may be able to intervene to prevent this deadly progression of the cancer process.
Tipo de publicação: JOURNAL ARTICLE; REVIEW
Nome de substância:0 (Carcinoembryonic Antigen); 0 (Cell Adhesion Molecules); 0 (Extracellular Matrix Proteins); 0 (Receptors, Cell Surface)


  9 / 643 MEDLINE  
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PMID:27236565
Autor:Michelini S; Modesto M; Filippini G; Spiezio C; Sandri C; Biavati B; Pisi A; Mattarelli P
Endereço:Department of Agricultural Sciences, University of Bologna, Italy. Electronic address: samanta.michelini@unibo.it.
Título:Bifidobacterium aerophilum sp. nov., Bifidobacterium avesanii sp. nov. and Bifidobacterium ramosum sp. nov.: Three novel taxa from the faeces of cotton-top tamarin (Saguinus oedipus L.).
Fonte:Syst Appl Microbiol; 39(4):229-236, 2016 Jun.
ISSN:1618-0984
País de publicação:Germany
Idioma:eng
Resumo:Forty-five microorganisms were isolated on bifidobacteria selective medium from one faecal sample of an adult subject of the cotton-top tamarin (Saguinus oedipus L.). All isolates were Gram-positive, catalase-negative, anaerobic, fructose-6-phosphate phosphoketolase positive, and asporogenous rod-shaped bacteria. In this study, only eight out of the forty-five strains were characterized more deeply, whereas the others are still currently under investigation. They were grouped by BOX-PCR into three clusters: Cluster I (TRE 17(T), TRE 7, TRE 26, TRE 32, TRE 33, TRE I), Cluster II (TRE C(T)), and Cluster III (TRE M(T)). Comparative analysis of 16S rRNA gene sequences confirmed the results from the cluster analysis and revealed relatively low level similarities to each other (mean value 95%) and to members of the genus Bifidobacterium. All eight isolates showed the highest level of 16S rRNA gene sequence similarities with Bifidobacterium scardovii DSM 13734(T) (mean value 96.6%). Multilocus sequence analysis (MLSA) of five housekeeping genes (hsp60, rpoB, clpC, dnaJ and dnaG) supported their independent phylogenetic position to each other and to related species of Bifidobacterium. The G+C contents were 63.2%, 65.9% and 63.0% for Cluster I, Cluster II and Cluster III, respectively. Peptidoglycan types were A3α l-Lys-l-Thr-l-Ala, A4ß l-Orn (Lys)-d-Ser-d-Glu and A3ß l-Orn-l-Ser-l-Ala in Clusters I, II and III, respectively. Based on the data provided, each cluster represented a novel taxon for which the names Bifidobacterium aerophilum sp. nov. (TRE 17(T)=DSM 100689=JCM 30941; TRE 26=DSM 100690=JCM 30942), Bifidobacterium avesanii sp. nov. (TRE C(T)=DSM 100685=JCM 30943) and Bifidobacterium ramosum sp. nov. (TRE M=DSM 100688=JCM 30944) are proposed.
Tipo de publicação: JOURNAL ARTICLE
Nome de substância:0 (Chaperonin 60); 0 (DNA, Bacterial); 0 (HSP40 Heat-Shock Proteins); 0 (Peptidoglycan); 0 (RNA, Ribosomal, 16S); EC 2.7.7.- (DNA Primase); EC 2.7.7.6 (DNA-Directed RNA Polymerases); EC 4.1.2.- (Aldehyde-Lyases); EC 4.1.2.22 (fructose-6-phosphate phosphoketolase)


  10 / 643 MEDLINE  
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PMID:26801822
Autor:Reeves NM; Auerbach BM; Sylvester AD
Endereço:Department of Anatomy, Ross University School of Medicine, Portsmouth, Dominica.
Título:Fluctuating and directional asymmetry in the long bones of captive cotton-top tamarins (Saguinus oedipus).
Fonte:Am J Phys Anthropol; 160(1):41-51, 2016 May.
ISSN:1096-8644
País de publicação:United States
Idioma:eng
Resumo:OBJECTIVES: Skeletal asymmetries reflect developmental stability and mechanical, functional, and physiological influences on bone growth. In humans, researchers have documented the greatest limb bone bilateral asymmetry in diaphyseal breadths, with less asymmetry in articular and maximum length dimensions. However, it remains unclear as to whether the pattern observed for humans is representative of nonhuman primates, wherein bilateral loading may minimize directional asymmetry. This study adds to the small body of asymmetry data on nonhuman primates by investigating patterns of long bone asymmetry in a skeletal sample of Saguinus oedipus (cotton-top tamarin). MATERIALS AND METHODS: Humeri, radii, ulnae, femora, and tibiae of 76 adult captive cotton-top tamarin skeletons (48 males, 28 females) were measured bilaterally. We included maximum length, midshaft diaphyseal breadths, and at least one articular measurement for each bone to assess directional (DA) and fluctuating asymmetry (FA) in each dimension. RESULTS: Most dimensions exhibit significant FA, and very few have significant DA; DA is limited to the lower limb, especially in knee dimensions. Overall, the magnitudes of asymmetry in tamarins have a consistent ranking that follows the same pattern as found in humans. DISCUSSION: This first study of DA and FA among multiple dimensions throughout the limbs of a non-hominoid primate suggests that previously-reported patterns of human bilateral asymmetry are not exclusive to humans. The results further indicate potential underlying differences in constraints on variation within limb bones. While processes shaping variation await further study, our results argue that different long bone dimensions may reflect dissimilar evolutionary processes.
Tipo de publicação: JOURNAL ARTICLE



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