scholarly journals Morphological evaluation of the ileum, proximal colon and distal colon of green turtles (Chelonia mydas) dead on the slopes in the Environmental Protection Areas of Cananéia-Iguape-Peruíbe and Mosaic Jureia-Itatins Conservation Units, Peruibe-SP

2020 ◽  
Vol 3 (3) ◽  
pp. 1885-1896
Author(s):  
Edris Queiroz Lopes ◽  
Milena Joice Bressan ◽  
Tatiane Gonçalves de Lima ◽  
Luana Felix de Melo ◽  
Rose Eli Grassi Rici ◽  
...  
Keyword(s):  
Environmental Protection ◽  
Chelonia Mydas ◽  
Distal Colon ◽  
Proximal Colon ◽  
Conservation Units ◽  
Green Turtles ◽  
Morphological Evaluation

scholarly journals Descrição Anatômica Esquelética da tartaruga verde (Chelonia Mydas) proveniente de encalhe nas unidades de Conservação do Mosaico Jureia-Itatins, Estação Ecológica Tupiniquins e APACIP – Área de Proteção Ambiental Cananeia-Iguape-Peruíbe-SP / Anatomical Skeletal Description of the Green Turtle (Chelonia Mydas) from stranded in the Jureia-Itatins Mosaic Conservation Units, Tupiniquins Ecological Station and Apacip – Cananeia-Iguape-Peruíbe-SP Environmental Protection zone

2021 ◽  
Vol 4 (4) ◽  
pp. 5441-5456
Author(s):  
Edris Queiroz Lopes ◽  
Tatiane Gonçalves De Lima ◽  
Eduardo Forzan Braz ◽  
Nathia Nathaly Rigoglio
Keyword(s):  
Environmental Protection ◽  
Green Turtle ◽  
Chelonia Mydas ◽  
Conservation Units ◽  
Protection Zone

A tartaruga verde (Chelonia mydas) pertencente à família Cheloniidae é uma das espécies marinhas que habita todos os mares, apresentando comportamento altamente migratório com movimentos sazonais em busca de alimentos, além de alternar seu ciclo de vida em diferentes habitats. Embora sua origem seja terrestre, local onde são lentas e vulneráveis e onde fazem oviposição; estas evoluíram e se adaptaram ao ambiente marinho, local no qual se deslocam com rapidez e agilidade. Sua morfologia pode auxiliar na identificação das diferentes espécies de tartarugas marinhas, como por exemplo, número de placas na cabeça, formato das mandíbulas, entre outros. O dimorfismo sexual fica evidente na vida adulta, quando os machos passam a apresentar cauda mais longa e garra das nadadeiras anteriores curvada. Por ser a espécie mais comum no litoral brasileiro e por estar incluída na lista de espécies ameaçadas de extinção em escala mundial, este trabalho teve como objetivo descrever sua morfologia e anatomia esquelética a fim de difundir conhecimento básicos que visam a conservação desta espécie de tartaruga marinha.

scholarly journals Morphophysiological Analysis of Keratobranchial Bone II located in the Hyoid of the Green Turtle (Chelonias mydas) found in Peruíbe, South Coast of Brazil, Mosaic of Conservation Units-Juréia-Itatins and APACIP

2021 ◽  
Vol 1 (4) ◽  
pp. 120-130
Author(s):  
Edris Queiroz Lopes ◽  
Tatiane Gonçalves De Lima ◽  
Luana Félix De Melo ◽  
Rose Eli Grassi Rici
Keyword(s):  
Green Turtle ◽  
Bone Structure ◽  
Eating Habits ◽  
Coastal Region ◽  
Chelonia Mydas ◽  
Conservation Units ◽  
Green Turtles ◽  
Small Bones ◽  
High Level ◽  
Microscopy Techniques

The green turtle (Chelonia mydas) present in tropical seas, uses as a feeding area the coastal region of Peruíbe, has the skull as a relatively large and solid structure, and a strong jaw formed by the junction of small bones as it has very abrasive feeding. By applying scanning electron microscopy techniques, it was possible to identify the presence of a bone structure located in the hyoid in the ventral region of the skull along with the mandible of juvenile individuals of green turtles, and as there is no related research, it was necessary to perform a CT scan, decalcification and histology of the quelonian hyoid, to discover the morphological composition of this new structure, described only in the species Chelonia mydas. Thus, the morphology of the structures and its confirmation as a real bone, with characteristic of spongy bone, described as certobranchial II, was confirmed, thus helping researchers to seek other ways to understand the feeding processes of these animals that are going through a series of serious environmental problems and therefore perhaps having to change their eating habits to overcome the high level of pollution that we are finding in the oceans.   RESUMO A tartaruga verde (Chelonia mydas) presente nos mares tropicais, utiliza como zona de alimentação a região costeira do Peruíbe, tem o crânio como uma estrutura relativamente grande e sólida, e uma mandíbula forte formada pela junção de pequenos ossos, uma vez que tem uma alimentação muito abrasiva. Aplicando técnicas de microscopia electrónica de varrimento, foi possível identificar a presença de uma estrutura óssea localizada no hióide na região ventral do crânio, juntamente com a mandíbula de indivíduos juvenis de tartarugas verdes, e como não existe investigação relacionada, foi necessário realizar um TAC, descalcificação e histologia do hióide quelónico, para descobrir a composição morfológica desta nova estrutura, descrita apenas na espécie Chelonia mydas. Assim, a morfologia das estruturas e a sua confirmação como um osso real, com característica de osso esponjoso, descrito como certobranchial II, foi confirmada, ajudando assim os investigadores a procurar outras formas de compreender os processos de alimentação destes animais que estão a passar por uma série de graves problemas ambientais e, por conseguinte, talvez tenham de alterar os seus hábitos alimentares para superar o elevado nível de poluição que estamos a encontrar nos oceanos.

scholarly journals Isolation and characterization of the aerobic bacterial microbiota of the esophagus and its probable association with obstructive caseous lesions in green turtles (Chelonia mydas)

2020 ◽  
Vol 40 (11) ◽  
pp. 922-932
Author(s):  
Adriano L.S. Bindaco ◽  
Antônio Calais Júnior ◽  
Ítalo C. Almeida ◽  
César O. Liesner ◽  
Maria Rosa Ferreira ◽  
...  
Keyword(s):  
Gastroesophageal Junction ◽  
Chelonia Mydas ◽  
Brazilian Coast ◽  
Gram Positive Bacteria ◽  
Green Turtles ◽  
Microbiological Culture ◽  
Morphological Evaluation ◽  
Isolation And Characterization ◽  
Bacterial Microbiota ◽  
Inflammatory Infiltrates

ABSTRACT: Caseous lesions in the esophagus of green turtles (Chelonia mydas) from the coast of Brazil have been described as obstructive lesions and can lead to the death of these animals. However, their etiology remains unclear. The aim of this study was to isolate and characterize the aerobic bacterial microbiota of the esophagus of green turtles (C. mydas) from the Brazilian coast and to verify its possible participation in the etiology of caseous lesions. For this, 42 animals were used, 33 alive and healthy and 9 naturally dead that had esophageal lesions confirmed by necropsy, from Anchieta and Piúma beaches, Espírito Santo. Microbiological tests and morphological evaluation of the esophagus were performed. We isolated 14 different bacterial agents from healthy animal samples, with the prevalence of Pseudomonas aeruginosa being (36.36%), Staphylococcus aureus (33.33%), Aeromonas hydrophila (27.27%), and Vibrio alginolyticus (24.24%). In dead animals, only three distinct agents were isolated: S. aureus (50.00%), A. hydrophila (25.00%), and V. alginolyticus (25.00%). Morphological evaluation revealed a predominance of the lesions at the gastroesophageal junction, with multifocal-to-coalescent distribution, discrete intensity, and absence of obstruction. Ulcerations and caseous exudates, inflammatory infiltrates, parasitic eggs, and giant foreign body cells were also observed as well as bacterial lumps and glandular alterations, such as necrosis, adenitis, and fragments of adult parasites. There was a positive correlation between bacterial lumps and microbiological culture and a negative correlation between bacterial lumps and microbiological culture with parasites. Thus, it was noted that the esophageal aerobic microbiota of C. mydas was predominantly composed of Gram-negative bacteria such as P. aeruginosa, A. hydrophila, and V. alginolyticus, in addition to several enterobacteria and Gram-positive bacteria, such as S. aureus. These agents are opportunists and may be involved in the etiology of caseous esophagitis in association with other pathogens as co-factors working in association or, even in a secondary way.

scholarly journals Evaluation of the green turtles’ (Chelonia mydas) body conditions found in the Juréia-Itatins Mosaic's conservation units, South Coast of the São Paulo state

2020 ◽  
Vol 3 (3) ◽  
pp. 1871-1884
Author(s):  
Milena Joice Bressan ◽  
Tatiane Gonçalves de Lima ◽  
Luana Felix de Melo ◽  
Nathia Nataly Rigoglio ◽  
Edris Queiroz Lopes
Keyword(s):  
Chelonia Mydas ◽  
Sao Paulo ◽  
South Coast ◽  
São Paulo ◽  
Conservation Units ◽  
Green Turtles ◽  
Paulo State ◽  
São Paulo State

scholarly journals Identification of Gastrointestinal Microbiota in Hawaiian Green Turtles (Chelonia mydas)

2020 ◽  
Vol 16 ◽  
pp. 117693432091460 ◽  
Author(s):  
Karla J McDermid ◽  
Ronald P Kittle ◽  
Anne Veillet ◽  
Sophie Plouviez ◽  
Lisa Muehlstein ◽  
...  
Keyword(s):  
Bacterial Communities ◽  
Chelonia Mydas ◽  
Proximal Colon ◽  
Personal Genome ◽  
Ion Torrent ◽  
Gastrointestinal Microbiota ◽  
Green Turtles ◽  
Plant Matter ◽  
16S Sequence

Green turtles ( Chelonia mydas) have a hindgut fermentation digestive tract, which uses cellulolytic microbes to break down plant matter in the cecum and proximal colon. Previous studies on bacterial communities of green turtles have not identified in situ hindgut microbiota, and never before in Hawaiian green turtles, which comprise an isolated metapopulation. Fresh samples using sterile swabs were taken from five locations along the gastrointestinal tracts of eight green turtles that had required euthanization. Bacteria were cultured, aerobically and anaerobically, on nutrient agar and four differential and selective media. Samples at three sections along the gastrointestinal tracts of two green turtles were analyzed using 16S metagenomics on an Ion Torrent Personal Genome Machine. More than half of the 4 532 104 sequences belonged to the phylum Firmicutes, followed by Bacteroidetes and Proteobacteria, which are characteristic of herbivore gut microbiota. Some microbiota variation existed between turtles and among gastrointestinal sections. The 16S sequence analysis provided a better representation of the total gastrointestinal bacterial community, much of which cannot be cultured using traditional microbial techniques. These metagenomic analyses serve as a foundation for a better understanding of the microbiome of green turtles in the Hawaiian Islands and elsewhere.

Stock composition of green turtles Chelonia mydas foraging in the Ryukyu Archipelago differs with size class

2018 ◽  
Vol 600 ◽  
pp. 151-163 ◽  
Author(s):  
T Hamabata ◽  
H Nishizawa ◽  
I Kawazu ◽  
K Kameda ◽  
N Kamezaki ◽  
...  
Keyword(s):  
Chelonia Mydas ◽  
Size Class ◽  
Ryukyu Archipelago ◽  
Green Turtles

scholarly journals The Relationship between Inflammation Markers (CRP, IL-6, sCD40L) and Colorectal Cancer Stage, Grade, Size and Location

Diagnostics ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1382
Author(s):  
Olga Martyna Koper-Lenkiewicz ◽  
Violetta Dymicka-Piekarska ◽  
Anna Justyna Milewska ◽  
Justyna Zińczuk ◽  
Joanna Kamińska
Keyword(s):  
Colorectal Cancer ◽  
Linear Regression ◽  
Tumor Size ◽  
Distal Colon ◽  
Proximal Colon ◽  
Model Parameters ◽  
Grade Group ◽  
Who Grade ◽  
The Mean ◽  
Mean Concentration

The aim of the study was the evaluation whether in primary colorectal cancer (CRC) patients (n = 55): age, sex, TNM classification results, WHO grade, tumor location (proximal colon, distal colon, rectum), tumor size, platelet count (PLT), mean platelet volume (MPV), mean platelet component (MCP), levels of carcinoembryonic antigen (CEA), cancer antigen (CA 19-9), as well as soluble lectin adhesion molecules (L-, E-, and P-selectins) may influence circulating inflammatory biomarkers: IL-6, CRP, and sCD40L. We found that CRP concentration evaluation in routine clinical practice may have an advantage as a prognostic biomarker in CRC patients, as this protein the most comprehensively reflects clinicopathological features of the tumor. Univariate linear regression analysis revealed that in CRC patients: (1) with an increase in PLT by 10 × 103/μL, the mean concentration of CRP increases by 3.4%; (2) with an increase in CA 19-9 of 1 U/mL, the mean concentration of CRP increases by 0.7%; (3) with the WHO 2 grade, the mean CRP concentration increases 3.631 times relative to the WHO 1 grade group; (4) with the WHO 3 grade, the mean CRP concentration increases by 4.916 times relative to the WHO 1 grade group; (5) with metastases (T1-4N+M+) the mean CRP concentration increases 4.183 times compared to non-metastatic patients (T1-4N0M0); (6) with a tumor located in the proximal colon, the mean concentration of CRP increases 2.175 times compared to a tumor located in the distal colon; (7) in patients with tumor size > 3 cm, the CRP concentration is about 2 times higher than in patients with tumor size ≤ 3 cm. In the multivariate linear regression model, the variables that influence the mean CRP value in CRC patients included: WHO grade and tumor localization. R2 for the created model equals 0.50, which indicates that this model explains 50% of the variance in the dependent variable. In CRC subjects: (1) with the WHO 2 grade, the mean CRP concentration rises 3.924 times relative to the WHO 1 grade; (2) with the WHO 3 grade, the mean CRP concentration increases 4.721 times in relation to the WHO 1 grade; (3) with a tumor located in the rectum, the mean CRP concentration rises 2.139 times compared to a tumor located in the distal colon; (4) with a tumor located in the proximal colon, the mean concentration of CRP increases 1.998 times compared to the tumor located in the distal colon; if other model parameters are fixed.

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