Osteoderm microstructure of Riostegotherium yanei, the oldest Xenarthra.

Abstract:

:Abstract: Riostegotherium yanei from the Itaboraí Basin, Brazil, is the oldest known Xenarthra. This paper aims to describe the internal morphology of the osteoderms of Riostegotherium yanei from the perspective of histology and micro-CT approaches, expanding the available data on cingulate osteoderm microstructure. Seven osteoderms of R. yanei were used for the internal microstructure description and eight of Dasypus novemcinctus for comparison. The osteoderms of Riostegotherium yanei lacks the diploë-like structure typical of glyptodonts but has a three-layered structure composed of two layers of non-Haversian compact bone enclosing a central layer of primary and secondary osteons. This internal organization is distinct from other Astegotheriini of comparable age, but similar to Dasypus. The 3D reconstruction of Riostegotherium yanei revealed two patterns of internal organization. Pattern 1 of movable osteoderm is composed of large remodeled areas at the base and a more compact bone at the tongue; in Pattern 2 (both movable and buckler), the internal cavities are much smaller, more numerous, and more interconnected to each other. In one buckler osteoderm, the cavities are organized somewhat radially with a compact central region (Pattern 1). Pattern 1 of both movable and buckler osteoderms resemble that of Dasypus.

journal_name

An Acad Bras Cienc

authors

Bergqvist LP,Pereira PVLGC,Machado AS,Castro MC,Melki LB,Lopes RT

doi

10.1590/0001-3765201920181290

subject

Has Abstract

pub_date

2019-09-02 00:00:00

pages

e20181290

issue

suppl 2

eissn

0001-3765

issn

1678-2690

pii

S0001-37652019000400518

journal_volume

91

pub_type

杂志文章
  • Melipona mondury produces a geopropolis with antioxidant, antibacterial and antiproliferative activities.

    abstract::Geopropolis is a special type of propolis produced by stingless bees. Several pharmacological properties have been described for different types of geopropolis, but there have been no previous studies of the geopropolis from Melipona mondury. In this study, we investigated the antioxidant, antibacterial, and antiproli...

    journal_title:Anais da Academia Brasileira de Ciencias

    pub_type: 杂志文章

    doi:10.1590/0001-3765201720160725

    authors: Santos TLAD,Queiroz RF,Sawaya ACHF,Lopez BG,Soares MBP,Bezerra DP,Rodrigues ACBC,Paula VF,Waldschmidt AM

    更新日期:2017-01-01 00:00:00

  • Complete assignments of NMR data and assessment of trypanocidal activity of new eremantholide C derivatives.

    abstract::Chemical transformations of eremantholide C (1), a sesquiterpene lactone that was isolated from Lychnophora trichocarpha Spreng. led to five new derivatives: 1',2'- epoxyeremantholide C (2), 5-n-propylamine-4,5-dihydro-1',2'-epoxyeremantholide C (3), 5-n-propylammonium-4,5-dihydro-1',2'-epoxyeremantholide C chloride (...

    journal_title:Anais da Academia Brasileira de Ciencias

    pub_type: 杂志文章

    doi:10.1590/0001-3765201420140167

    authors: Saúde-Guimarães DA,Raslan DS,Chiari E,De Oliveira AB

    更新日期:2014-12-01 00:00:00

  • Effect of thermo-coupled processes on the behaviour of a clay barrier submitted to heating and hydration.

    abstract::The storage of high level radioactive waste is still an unresolved problem of the nuclear industry, being geological disposal the most favoured option and, naturally, the one requiring the strongest geo-mechanical input. Most conceptual designs for the deep geological disposal of nuclear waste envisage placing the can...

    journal_title:Anais da Academia Brasileira de Ciencias

    pub_type: 杂志文章

    doi:10.1590/s0001-37652010000100013

    authors: Sánchez M,Gens A,Olivella S

    更新日期:2010-03-01 00:00:00

  • Production of transgenic goat (Capra hircus) with human Granulocyte Colony Stimulating Factor (hG-CSF) gene in Brazil.

    abstract::In order to produce transgenic goats with hG-CSF, a total of 24 adult Saanen and 48 adult undefined breed goats were used as donors and recipients, respectively. Donors were estrus-synchronized with vaginal sponges and superovulated by a treatment with 200 mg FSH given twice daily in decreasing doses over 3 days start...

    journal_title:Anais da Academia Brasileira de Ciencias

    pub_type: 杂志文章

    doi:10.1590/s0001-37652007000400003

    authors: Freitas VJ,Serova IA,Andreeva LE,Dvoryanchikov GA,Lopes ES Jr,Teixeira DI,Dias LP,Avelar SR,Moura RR,Melo LM,Pereira AF,Cajazeiras JB,Andrade ML,Almeida KC,Sousa FC,Carvalho AC,Serov OL

    更新日期:2007-12-01 00:00:00

  • Immature stages of Spodoptera albula (Walker) (Lepidoptera: Noctuidae): developmental parameters and host plants.

    abstract::This study aimed to detail the temporal and morphological parameters of the immature stages of Spodoptera albula (Walker 1857) under controlled conditions (25 ± 1°C, 70 ± 10% RH and 14 hour photophase) and to gather information about their larval host plants. For this purpose, a new rearing method and artificial diet ...

    journal_title:Anais da Academia Brasileira de Ciencias

    pub_type: 杂志文章

    doi:10.1590/s0001-37652013000100013

    authors: Montezano DG,Specht A,Bortolin TM,Fronza E,Sosa-Gómez DR,Roque-Specht VF,Pezzi P,Luz PC,Barros NM

    更新日期:2013-03-01 00:00:00

  • Antipsychotic profile of alstonine: ethnopharmacology of a traditional Nigerian botanical remedy.

    abstract::Although recently developed drugs have brought significant improvement, the treatment of psychotic disorders still presents serious drawbacks. Since inherent complexity and lack of satisfactory understanding of the underlying pathophysiology impose limits for rational drug design, resourceful approaches in the search ...

    journal_title:Anais da Academia Brasileira de Ciencias

    pub_type: 杂志文章

    doi:

    authors: Costa-Campos L,Elisabetsky E,Lara DR,Carlson TJ,King SR,Ubillas R,Nunes DS,Iwu MM,Nkemjika CO,Ozioko A,Agwu CO

    更新日期:1999-01-01 00:00:00

  • Wollastonite to hinder growth of Aspergillus niger fungus on cotton textile.

    abstract::Effects of Aspergillus niger was investigated on the strength of cotton textile specimens impregnated with nano-wollastonite, and then compared with normal specimens. Cotton strips were cut and prepared in warp and wept directions according to the standard specifications ASTM D-5035. Results showed that incubation of ...

    journal_title:Anais da Academia Brasileira de Ciencias

    pub_type: 杂志文章

    doi:10.1590/0001-3765201820170914

    authors: Taghiyari HR,Majidinajafabadi R,Vahidzadeh R

    更新日期:2018-09-01 00:00:00

  • The evidence for hippocampal long-term potentiation as a basis of memory for simple tasks.

    abstract::Long-term potentiation (LTP) is the enhancement of postsynaptic responses for hours, days or weeks following the brief repetitive afferent stimulation of presynaptic afferents. It has been proposed many times over the last 30 years to be the basis of long-term memory. Several recent findings finally supported this hyp...

    journal_title:Anais da Academia Brasileira de Ciencias

    pub_type: 杂志文章

    doi:10.1590/s0001-37652008000100007

    authors: Izquierdo I,Cammarota M,Da Silva WC,Bevilaqua LR,Rossato JI,Bonini JS,Mello P,Benetti F,Costa JC,Medina JH

    更新日期:2008-03-01 00:00:00

  • Evaluation of the catalytic activity of lipases immobilized on chrysotile for esterification.

    abstract::In the present work, the ester synthesis in organic media catalyzed by lipases immobilized on chrysotile was studied. Lipases of different sources (Mucor javanicus, Pseudomonas cepacia, Rhizopus oryzae, Aspergillus niger and Candida rugosa) were immobilized on chrysotile, an inexpensive magnesium silicate, and used fo...

    journal_title:Anais da Academia Brasileira de Ciencias

    pub_type: 杂志文章

    doi:10.1590/s0001-37652003000200003

    authors: Silva JE,Jesus PC

    更新日期:2003-06-01 00:00:00

  • Decreased inflammatory response in rat bladder after intravesical administration of capsaicin-loaded liposomes.

    abstract::The objective of this work was to study the reduction in the capsaicin toxicity by encapsulation in liposomes. Capsaicin was extracted from peppers and characterized with high performance liquid chromatography (HPLC). We determined the zeta potential, polydispersivity index (PdI) and vesicle size of liposomes. Wistar ...

    journal_title:Anais da Academia Brasileira de Ciencias

    pub_type: 杂志文章

    doi:10.1590/0001-3765201620150309

    authors: Cirino LM,Vergne DM,Santana PF,Almeida ED,Costa LP,Albuquerque-Júnior RL,Lima-Verde IB,Padilha FF,Cardoso JC

    更新日期:2016-09-01 00:00:00

  • Urotrema macrotestis and Urotrema scabridum (Digenea: Urotrematidae) parasitizing bats (Mammalia: Chiroptera) in Brazil.

    abstract::Urotrema scabridum Braun 1900 and Urotrema macrotestis Mané-Garzón and Telias 1965 are reported from the small intestine of Eumops glaucinus (Wagner, 1843). The species were differentiated by the body width, the size and position of acetabulum, the size of testis, the caecal termination, and the distribution of vitell...

    journal_title:Anais da Academia Brasileira de Ciencias

    pub_type: 杂志文章

    doi:10.1590/0001-3765201820180648

    authors: Mello ÉM,Rabelo ÉML,Silva RJD

    更新日期:2019-03-21 00:00:00

  • PCR-based detection of Helicobacter spp. in animal facilities of a University in Rio de Janeiro, Brazil.

    abstract::Pathogenic microbial detection and control in laboratory animal facilities is essential to guarantee animal welfare, data validity and reproducibility. Helicobacter spp. are known to affect mice health, what may interfere with experimental outcomes. This study aimed to screen for Helicobacter spp. in mice from animal ...

    journal_title:Anais da Academia Brasileira de Ciencias

    pub_type: 杂志文章

    doi:10.1590/0001-3765202020191517

    authors: Matos-Rodrigues GE,Masseron CC,Silva FJMD,Frajblat M,Moreira LO,Martins RAP

    更新日期:2020-01-01 00:00:00

  • Notes on court and copula, fertility, nest, eggs and hatchlings of the Caatinga's black snake Boiruna sertaneja Zaher, 1996 (Serpentes: Dipsadidae) from northeastern Brazil.

    abstract::The Caatinga's black snake Boiruna sertaneja is a Pseudoboini species, endemic of the Caatinga biome. It is rare and fits in five traits that suggest it deserve more attention in reproduction research and conservation policies. Here we provide information on reproductive biology of B. sertaneja by adding new data abou...

    journal_title:Anais da Academia Brasileira de Ciencias

    pub_type: 杂志文章

    doi:10.1590/0001-3765202020190588

    authors: Guedes T,Guedes A

    更新日期:2020-01-01 00:00:00

  • Pollen analysis in honey samples from the two main producing regions in the Brazilian northeast.

    abstract::Knowledge about the botanical source of honey is very important for the beekeeper while it indicates adequate and abundant supply sources of nectar and pollen for the bees, thus contributing toward improved yield. The present study means to identify the pollen types occurring in 58 samples of honey produced in two sta...

    journal_title:Anais da Academia Brasileira de Ciencias

    pub_type: 杂志文章

    doi:10.1590/s0001-37652007000300003

    authors: Sodré Gda S,Marchini LC,Carvalho CA,Moreti AC

    更新日期:2007-09-01 00:00:00

  • Ameliorative potential of Ocimum sanctum in chronic constriction injury-induced neuropathic pain in rats.

    abstract::The present study was designed to investigate the ameliorative potential of Ocimum sanctum and its saponin rich fraction in chronic constriction injury-induced neuropathic pain in rats. The chronic constriction injury was induced by placing four loose ligatures around the sciatic nerve, proximal to its trifurcation. T...

    journal_title:Anais da Academia Brasileira de Ciencias

    pub_type: 杂志文章

    doi:10.1590/0001-3765201520130008

    authors: Kaur G,Bali A,Singh N,Jaggi AS

    更新日期:2015-03-01 00:00:00

  • Feeding preference of Plutella xylostella for leaves treated with plant extracts.

    abstract::Plutella xylostella L. is one of the main agents to cause damages to plants of Brassica genus, provoking negative impacts in cultures. The use of botanical extracts in plants protection has been related in literature, however, their use in the species analyzed in this study is not yet reported. We assessed the effect ...

    journal_title:Anais da Academia Brasileira de Ciencias

    pub_type: 杂志文章

    doi:10.1590/0001-3765201620150236

    authors: Couto IF,Fuchs ML,Pereira FF,Mauad M,Scalon SP,Dresch DM,Mussury RM

    更新日期:2016-01-01 00:00:00

  • Blood compatibility assessments of electrospun polyurethane nanocomposites blended with megni oil for tissue engineering applications.

    abstract::Tissue engineering holds as a prominent technique to repair or replace the damaged human parts to recreate its native function. In this research, a novel scaffold based on polyurethane (PU) comprising megni oil was electrospun for tissue engineering applications. The obtained polyurethane blended with megni oil nanofi...

    journal_title:Anais da Academia Brasileira de Ciencias

    pub_type: 杂志文章

    doi:10.1590/0001-3765201920190018

    authors: Jaganathan SK,Mani MP,Supriyanto E

    更新日期:2019-06-19 00:00:00

  • A new species of Tereancistrum (Monogenea, Dactylogyridae) from the gills of three Leporinus species (Characiformes, Anostomidae) and a revised description of Tereancistrum parvus.

    abstract::The present study describes Tereancistrum flabellum n. sp. (Dactylogyridae, Ancyrocephalinae) from the gills of the anostomid fishes Leporinus friderici, Leporinus amblyrhynchus and Leporinus elongatus from two freshwater ecosystems in the south east of Brazil. This new species is mainly characterized by the morpholog...

    journal_title:Anais da Academia Brasileira de Ciencias

    pub_type: 杂志文章

    doi:10.1590/0001-3765201720160628

    authors: Zago AC,Yamada FH,Franceschini L,Bongiovani MF,Yamada POF,Silva RJD

    更新日期:2017-04-01 00:00:00

  • Scale insects (Hemiptera: Coccoidea) associated with arabica coffee and geographical distribution in the neotropical region.

    abstract::Coffee is one of the most important Brazilian agricultural commodities exported, and Minas Gerais and Espírito Santo States are the main coffee producers. Scale insects are important coffee pests, and 73 species of Cerococcidae (3), Coccidae (18), Diaspididae (6), Eriococcidae (1), Ortheziidae (3), Pseudococcidae (21)...

    journal_title:Anais da Academia Brasileira de Ciencias

    pub_type: 杂志文章

    doi:10.1590/0001-3765201720160689

    authors: Fornazier MJ,Martins DS,Willink MCG,Pirovani VD,Ferreira PSF,Zanuncio JC

    更新日期:2017-10-01 00:00:00

  • Areas of natural occurrence of Melipona scutellaris Latreille, 1811 (Hymenoptera: Apidae) in the state of Bahia, Brazil.

    abstract::The bee Melipona scutellaris is considered the reared meliponine species with the largest distribution in the North and Northeast regions of Brazil, with records from the state of Rio Grande do Norte down to the state of Bahia. Considering the importance of this species in the generation of income for family agricultu...

    journal_title:Anais da Academia Brasileira de Ciencias

    pub_type: 杂志文章

    doi:10.1590/s0001-37652012000300010

    authors: Alves RM,Carvalho CA,Souza BA,Santos WS

    更新日期:2012-09-01 00:00:00

  • Purification and characterization of a thermostable alkaline cellulase produced by Bacillus licheniformis 380 isolated from compost.

    abstract::During composting processes, the degradation of organic waste is accomplished and driven by a succession of microbial populations exhibiting a broad range of functional competencies. A total of 183 bacteria, isolated from a composting process, were evaluated for cellulase activity at different temperatures (37, 50, 60...

    journal_title:Anais da Academia Brasileira de Ciencias

    pub_type: 杂志文章

    doi:10.1590/0001-3765201720170408

    authors: Marco ÉG,Heck K,Martos ET,VAN DER Sand ST

    更新日期:2017-01-01 00:00:00

  • Role of the endocannabinoid system on the antihyperalgesic action of gabapentin in animal model of neuropathic pain induced by partial sciatic nerve ligation.

    abstract::Gabapentin has antihyperalgesic action, decreasing central sensitization in neuropathic pain models; this effect depends on the mobilization of endogenous pain control pathways. This study aims to investigate the contribution of the endocannabinoid system to the antihyperalgesic action of gabapentin. Mus musculus Swis...

    journal_title:Anais da Academia Brasileira de Ciencias

    pub_type: 杂志文章

    doi:10.1590/0001-3765202020191155

    authors: Buffon AC,Javornik MA,Heymanns AC,Salm DC,Horewicz VV,Martins DF,Piovezan AP

    更新日期:2020-12-14 00:00:00

  • Alcoholic extract of propolis in Nile tilapia post-larvae and fingerlings' diets: effects on production performance, body composition and intestinal histology.

    abstract::The aim of this study was to evaluate the production performance of Nile tilapia post-larvae and fingerlings fed with increasing levels of alcoholic extract of propolis into diets. In Experiment 1, 1800 post-larvae were distributed in 30 tanks, in a completely randomized design with five treatments composed by the inc...

    journal_title:Anais da Academia Brasileira de Ciencias

    pub_type: 杂志文章

    doi:10.1590/0001-3765201920180297

    authors: Santos LDD,Zadinelo IV,Silva LCRD,Zilli RL,Barreiros MAB,Mauerwerk MT,Meurer F

    更新日期:2019-05-23 00:00:00

  • Semi-automated counting model for arbuscular mycorrhizal fungi spores using the Circle Hough Transform and an artificial neural network.

    abstract::Arbuscular Mycorrhizae (AM) are mutualistic associations between Arbuscular Mycorrhizal Fungi (AMF) and the roots of many plant species. AMF spores give rise to filaments that develop in the root system of plants and contribute to the absorption of water and some nutrients. This article introduces a semi-automated cou...

    journal_title:Anais da Academia Brasileira de Ciencias

    pub_type: 杂志文章

    doi:10.1590/0001-3765201920180165

    authors: Melo CAO,Lopes JG,Andrade AO,Trindade RMP,Magalhães RS

    更新日期:2019-10-21 00:00:00

  • Entropy Generation Minimization Analysis of Active Magnetic Regenerators.

    abstract::A performance assessment of active magnetocaloric regenerators using entropy generation minimization is presented. The model consists of the Brinkman-Forchheimer equation to describe the fluid flow and coupled energy equations for the fluid and solid phases. Entropy generation contributions due to axial heat conductio...

    journal_title:Anais da Academia Brasileira de Ciencias

    pub_type: 杂志文章

    doi:10.1590/0001-3765201720160427

    authors: Trevizoli PV,Barbosa JR

    更新日期:2017-05-01 00:00:00

  • A new species and new records of Leptogium (Ach.) Gray (Collemataceae, Peltigerales) from Rio Grande do Sul State with an identification key for the genus.

    abstract::Specimens of Leptogium collected in ten localities from the State of Rio Grande do Sul were studied. Sixteen species were found of 28 records mentioned to the state, which represents around 57% of the Leptogium diversity known for Rio Grande do Sul. Leptogium exaratum is proposed as a new species. Leptogium atlanticum...

    journal_title:Anais da Academia Brasileira de Ciencias

    pub_type: 杂志文章

    doi:10.1590/0001-3765201920180313

    authors: Kitaura MJ,Koch NM,Lucheta F,Käffer MI,Schmitt JL,Pedroso J,Martins SA,Rodrigues AS,Canêz LS

    更新日期:2019-02-14 00:00:00

  • Geologic conceptual model of the municipality of Sete Lagoas (MG, Brazil) and the surroundings.

    abstract::The study area is located in the state of Minas Gerais, Brazil, among the municipalities of Pedro Leopoldo, Matozinhos, and Sete Lagoas, with Velhas River as the eastern boundary. It is located in the São Francisco Craton, where carbonated argillo-arenaceous sediments are emplaced giving origin to the Bambuí Group, in...

    journal_title:Anais da Academia Brasileira de Ciencias

    pub_type: 杂志文章

    doi:10.1590/0001-3765201520140400

    authors: Galvão P,Hirata R,Cordeiro A,Barbati D,Peñaranda J

    更新日期:2016-03-01 00:00:00

  • Sodium reduction in margarine using NaCl substitutes.

    abstract::Sodium chloride is traditionally used as a food additive in food processing. However, because of its high sodium content, NaCl has been associated with chronic diseases. Margarine is a popular product that is used in several preparations, but it includes high sodium content; therefore, it is among the products whose s...

    journal_title:Anais da Academia Brasileira de Ciencias

    pub_type: 杂志文章

    doi:10.1590/0001-3765201720150618

    authors: Gonçalves C,Rodrigues J,Júnior H,Carneiro J,Freire T,Freire L

    更新日期:2017-01-01 00:00:00

  • Contrasting life-histories in two syntopic amphibians of the Leptodactylus fuscus group (Heyer 1978).

    abstract::We used skeletochronology to compare age, size, reproductive parameters and growth patterns of two related, anuran amphibians from Northern Argentina: Leptodactylus bufonius (n=69) and L. latinasus (n=56), in order to better understand their coexistence in syntopy. Previous studies showed that the two species overlap ...

    journal_title:Anais da Academia Brasileira de Ciencias

    pub_type: 杂志文章

    doi:10.1590/0001-3675201920180507

    authors: Marangoni F,Courtis A,Piñeiro JM,Ingaramo MDR,Cajade R,Stănescu F

    更新日期:2019-07-29 00:00:00

  • Osteohistology of the silesaurid Sacisaurus agudoensis from southern Brazil (Late Triassic) and implications for growth in early dinosaurs.

    abstract::The non-dinosaurian dinosauriform silesaurids are the closest relatives of crown-group dinosaurs and are thus, important for understanding the origins of that group. Here, we describe the limb bone histology of the Late Triassic silesaurid Sacisaurus agudoensis from the Candelária Sequence of the Santa Maria Supersequ...

    journal_title:Anais da Academia Brasileira de Ciencias

    pub_type: 杂志文章

    doi:10.1590/0001-3765201920180643

    authors: Veiga FH,Botha-Brink J,Ribeiro AM,Ferigolo J,Soares MB

    更新日期:2019-06-19 00:00:00