Tatu Peba is an animal fro m Euphractus genus whose anatomy and/or systemic description are little studied, a fundamental understanding of biological system knowledge of this animal. Thus, this work aimed perform an anatomical description of abdominal aorta and Tatu Peba branches through a comparative study using 2 male and 2 female specimens. In this sense, the present work showed unprecedentedly discovery about this animal as the first major branch of abdominal aorta is celiac trunk and the second branch is a. Mesenteric cranial. From ventrolateral face, a. Phrenic caudal, by ventral small face Aa. Accessory Mesenteric and five pairs of Aa. Lombares. Medium distance, between Celiac Trunk and Aa. External Iliacs, born Renal arteries. A. Caudal Mesenteric emerges ventrally to caudal part of large intestine. In the final part of aorta, Aa. External Iliacs borns ventrolaterally and caudally projected. After Aa. External Iliacs origin, the aorta undergoes a drastic reduction of caliber and forms a short trunk that divides into terminal branches of aorta: right internal iliac, Left Internal Iliac and a. Median sinsacral in sagittal plane which emits an a. Lateral to each side, following three caudally. In view of these findings, the present study showed that abdominal aorta of Tatu Peba presents smaller number of branches bought from other ma mmals and contributes to anatomical description and understanding of important blood vessels in this animal biological system.

Anatomic studies about Coati (Nasua nasua) are an interesting area, since the contribution to knowledge and development of biological system from this specie that is geographically distributed almost every South American continent, including Brazil. Coati is popularly known as coati, quati, quati-mundéo and quati of stick (terminology attributed with the shape of its nose similar to a trumpet), which belongs the carnivorous order and Procyonidae family. The Nasua gender comprises two species, Nasua nasua and Nasua narica, however only Nasua nasua occurs in Brazil, in the cerrado biome. The present work aimed an anatomical and comparative study of abdominal aorta to verify the structural organization of this vessel on the body and its adaptations to physiological and evolutionary processes, even as possible inherent adaptations to alimentary and reproductive habit. For this, two male and two female specimens obtained from accidental death on the roadsides of Brazilian Southeast of Goiás was used. The arterial system was dissected and inject with Latex Art Glue, colored with red pigment Wandalar, through the femoral artery. Subsequently was made a fixation with aqueous 10 % formaldehyde solution to conservation. The preparation of anatomical pieces was performed under consecrated techniques in Macroscopic Anatomy. The present study demonstrated that in Coati, the anatomic standard of aorta abdominal part and the respective collateral branch shows a similar template to mammalian animals and the detailed analysis of these abdominal vessels reveals particularities to this specie in small arteries as the Phrenic-Abdominal, Suprarenal and Deep Circumflex Iliac.

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Resistance to the therapies currently offered for melanoma and hepatocellular carcinoma requires new research that seeks more effective therapeutic agents with less toxicity. The present study aimed to evaluate the antiproliferative, antitumor effects and the modulation of the mitochondrial electrical potential of the Acetate and Chloroform fractions and the sub-fractions Methanol, Ethanol, Dichloromethane and Ether, isolated from E. umbellata latex sap in murine melanoma cells (B16 -F10), hepatocellular carcinoma tumor cells (Hepa1c1c7) and normal fibroblast cells (FN1). The Acetate and Chloroform fractions showed significantly cytotoxic potential for tumor cells B16-F10 and Hepa1c1c7, in addition to the fractions being sensitive to the ether and methanol compounds. Such compounds promoted the reduction of cell confluence, the modulation of mitochondrial electrical potential, the depolarization of the mitochondrial membrane, and the release of pro-apoptotic mechanisms that resulted in the death of both tumor lines.

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