Armadillos, Xenarthras representatives, known for adaptability to different ecosystems, own specific morphophysiological characteristics that are not known and deserve to be studied. The aim of this study was to describe the morphology of cartilage of the larynx of the nine-banded armadillo (Dasypus novemcinctus). Five dead armadillos were donated by the Chico Mendes Institute of Biodiversity (ICMBio-PI) to the Federal University of Piauí. The animals were fixed and dissected for removal of the larynx. The cartilages were identified and described, photodocumented, and schematized. Fragments with about 0.5 cm of each cartilage were collected and submitted to classical histology for Hematoxylin-Eosin coloring. The slides were assembled in enterlan and analyzed under a light microscope. The larynx of the armadillo (D. novemcinctus) is located in the mentonian region, ventral to the esophagus, and due to the total positioning of the tongue in the oral cavity, there is also a cranial cervical position in this species. The larynx has five cartilages, they are: a cricoid, a thyroid, an epiglottis, and two arytenoids. The corniculate process is present; however, the cuneiform process is absent. The epiglottis has a discrete bifurcation at its apex. In all cartilages epithelial variations are observed. The tissues are varied from squamoso stratified to cylindrical pseudostratified, with propria lamina rich in mucoserosas glands. With the exception of epiglottic cartilage, predominantly elastic, the rest are hyaline. The larynx of D. novemcinctus, although the same number of cartilages, differs morphologically and microscopically from the larynx of other species.
Nine-banded armadillo (Dasypus novemcinctus) stands out for its adaptability in different environments, a fact that requires the species, an olfactory capacity developed with a keen sense and related organs potentially evolved. Five specimens of nine banded armadillo were submitted to anatomic dissection with occipital disconnection and isolation of part of the skull in order to obtain a hemi-skull to view the arrangement of internal structures of the nasal cavity. The obtained specimens were identified and photographed with the assist of digital camera. The nine-banded armadillo nose is incorporated into the face of the skeleton located in nasal plan with the triangular shape and facing forward. The nostrils are separated by the nasal septum. Paranasal sinuses, two (frontal and parietal), resemble diverticula of the nasal cavity. The nine-banded armadillo nasal shells are presented divided into three: the ethmoid shell, the dorsal nasal shell and the ventral nasal shell. The shells are delimited dorsal and ventral nasal meatus by. The respiratory system of nine-banded armadillo presented features anatomical that justify their behavior in the nature, as their olfactory ability for hunting. Thus, the development of the nasal shell, especially, ethmoid shells check the animal facility in the searching for subterranean food https://doi.galoa.com.br/doi/10.17648/jibi-2448-0002-1-1-4013
The pancreas comprises an important metabolic organ of endocrine and exocrine character that has embryonic origin of rudimentary buds that fuse to form the organ. The present work aims to describe the pancreatic histogenesis of hybrid chick embryos (Gallus gallus). The research was performed in the UFPI, previously approved by the CEUA with protocol no. 040/15. We used 120 fertilized eggs of hybrid chickens kept in an incubator with controlled temperature and humidity.Daily collections of embryos and fetuses were performed from 4 to 21 days of incubation through the anatomical dissection consecutive the euthanasia. The tissues, previously fixed in 10% buffered formaldehyde, were submitted to histological processing and stained with hematoxylin-eosin.Finally, the mounted slides were analyzed in image software to obtain histomorphometric data, which were submitted to statistical analysis. The pancreas of hybrid chicken embryos originates around the fourth day of incubation with the dorsal and ventral pancreatic bud formation, which are composed by epithelial and mesenchymal cells. These cells differ in exocrine and endocrine cells. Around twelve embryonic days occurs the buds fusion and the immature organ formation that will give continue with the ductal system development, vascularization and compartmentalization of the endocrine and exocrine parts. Until 21st day of incubation it is possible to identify undifferentiated tissue forms which suggesting postnatal histogenesis. The description of pancreas histogenesis using histometric data on hybrid chicken embryos contributes to the clarification of embryonic development and reaffirms the premise that chickens serve as an experimental model for embryonic study of mammals.
This work assessed the effects of a 28-day treatment with lycopene-rich extract (LRE) from red guava fruit (Psidium guajava L.) on the lipid profile and oxidative stress in an experimental model of dyslipidemia. Male hamsters (116.5 ± 2.16 g) were fed with the AIN 93G diet containing casein (20%), coconut fat (13.5%) and cholesterol (0.1%). The animals were divided into four groups: normolipidemic control (standard feed; NC, n = 7); hypercholesterolemic control (HC, n = 7); LRE 25 mg/kg/day (LRE-25, n = 7) and LRE 50 mg/kg/day (LRE-50, n = 9). After treatment, plasma concentrations of triglycerides (TG), total cholesterol (TC), low-density lipoprotein (LDL) cholesterol (LDL-c), high-density lipoprotein (HDL) cholesterol (HDL-c), malondialdehyde (MDA-p) and myeloperoxidase (MPO), as well as erythrocytic superoxide dismutase (SOD-e) and the atherogenic index, were determined. Malondialdehyde (MDA-h), catalase (CAT), glutathione peroxidase (GPx) and superoxide dismutase (SOD-h) levels were assessed. Feed intake (FI) and weight gain (WG) were also determined. The LRE-25 group presented significantly lower TG levels and atherogenic index than did the HC group (p < 0.05). Both LRE-25 and LRE-50 groups presented lower levels of MDA-p and MPO than did the HC group (p < 0.05). LRE demonstrated a promising effect against dyslipidemia and oxidative stress.
Euphractus sexcinctus is a wild mammal native to the Americas; they have great diversity and are not in danger of extinction like other armadillo species. Despite the diversity, the morphology of several biological systems of this species has not been fully described. This study details the gross and microscopic anatomy of the urinary system in Euphractus sexcinctus, a six‐banded armadillo, compared with other mammalian study models. Six animals were dissected in the study. In the anatomical analysis, the kidneys, ureters, urinary bladder and urethra were dissected and photographed; then, fragments were submitted to histological routine for staining with haematoxylin‐eosin, toluidine blue and Masson's trichrome for visualization under light microscopy. The six‐banded armadillo ureter is histologically composed of four concentric layers. The urinary bladder is presented with three tissue layers. The pattern of constitution and distribution of urinary system structures was compatible with that of most domestic like Canis familiaris and wild animals like Bradypus torquatus, with adaptations for the arid and semi‐arid habitat. The description of the morphology of Euphractus sexcinctus presents great relevance both for its conservation and for its use as a model for clinical research.
A 3ª edição do Congresso Internacional de Estudantes e Profissionais da Saúde – DELTA SAÚDE, realizou-se de forma presencial no período de 04 a 06 de novembro de 2022, no Centro de Convenções do Hotel SESC Praia, Luis Correia, Piauí. O Delta Saúde 2022 trouxe como tema geral: “O pós-pandemia e os principais desafios da saúde global”; e as discussões foram norteadas pelos eixos centrais, a saber: a) Pandemia de COVID-19, b) Vigilância em Saúde, c) Saúde Pública e a Atenção Primária, d) Saúde Mental, e) Doenças Crônicas e Doenças Transmissíveis, f) Educação, Formação e Trabalho na Saúde, g) Inovação em Saúde, h) Eixos Transversais. O evento foi criado em 2017 e nesta edição alcançamos pelo menos 10 estados brasileiros em participação direta, palestrantes, convidados, além dos conferencistas internacionais on-line. Esta diversidade aliada a qualidade dos trabalhos apresentados, contribuiu de forma decisiva para o alcance dos objetivos do congresso que primam pela qualificação do ensino na saúde de acadêmicos e pósgraduandos, pelo fortalecimento das práticas profissionais nos serviços de saúde, e pelo incentivo à produção científica. A programação do evento foi composta por palestras nacionais e internacionais, mesas multidisciplinares, cursos livres, seminários, rodas de conversas, encontros e sessões de trabalhos com apresentações nas modalidades: Comunicações Orais e Pôsteres; e com publicação das pesquisas científicas nos Anais do congresso. O evento contou com 692 inscritos, e destes 42 foram palestrantes que abrilhantaram a programação do congresso. Recebemos 746 resumos para avaliação, e foram apresentados presencialmente 536 trabalhos, sendo 42 premiados com menção honrosa. O evento foi idealizado pela Sociedade Delta Científica e SBCSaúde, teve o apoio do SESC-PI e da Doity, além do apoio científico da FIOCRUZ Piauí, da Editora Pasteur, dos núcleos de pesquisa NUPCelt/UFPI, NAPsiTO/UFPI/UFDPar e NPPM/UFPI; e dos programas de residência multiprofissional RMSFC/UESPI e PRMSF/UFPI/UFDPar. O evento também contou com a parceria de empresas patrocinadoras e expositoras, que tiveram da Comissão Organizadora reciprocidade em suas demandas, a saber: Instituto UniEducacional, WM Saúde e The Nutri Store/PACCO.
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