Banca de QUALIFICAÇÃO: JOSI TEIXEIRA DE MELO

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : JOSI TEIXEIRA DE MELO
DATE: 06/12/2021
TIME: 19:45
LOCAL: videoconferência (https://meet.google.com/xxh-nxzr-vhq)
TITLE:

SERUM EVALUATION OF DEHYDROEPIANDROSTERONE SULFATE (SDHEA) IN ALOUATTA CARAYA

KEY WORDS:

Dehydroepiandrosterone (DHEAS). Serum concentration. Alouatta caraya. Hormones. Adrenals.

PAGES: 40
BIG AREA: Ciências Agrárias
AREA: Medicina Veterinária
SUBÁREA: Reprodução Animal
SUMMARY:

Monitoring animal welfare is essential to ensure that the environmental conditions of primates are suitable for reproduction and, consequently, for the preservation of the species. A possible method to assess the well-being of these individuals is through the measurement of glucocorticoids (GC), and, more recently, associated with the production of dehydroepiandrosterone (DHEA) and the sulfated form (DHEAS), which are adrenal steroid hormones that has anti-GC activity. This study aims to measure the concentration of DHEAS in Aloutta caraya kept under human care, in addition to determining the relationship between DHEAS levels with age, sex and body mass of A. caraya. Twenty animals (11 females and 9 males) were selected, being 03 children, 10 juveniles and 08 adults, from which fecal samples and blood samples were collected. When comparing the sexes, males had a mean of 23.34 ng/dL (n = 9) and females had a mean of 158.16 ng/mL (n = 11), with no significant difference between sexes (p = 0.0562). There was a positive correlation with body mass (p = 0.006; r = 0.58) and between age groups, there was a mean serum concentration of DHEAS in the infant group of 5.72 ng/dL (n = 3), in juveniles of 17.81 ng/dL (n = 10) and in adults 250.66 ng/dL (n = 7). When comparing these groups, a significant difference was observed only between juveniles and adults (p = 0.0246). The mean serum value for the species was 102.76 ng/mL. According to the concentration of each individual, there was a positive relationship of DHEAS with age (p < 0.001; r = 0.76) Due to the enormous diversity of platyrrhines, studies are needed in other species, in the areas of ecology, behavior, physiology etc. For a better understanding of the role of DHEA-S in the physiology of these animals, which have a concentration of DHEAS similar to that described in catarrhine primates, and which demonstrates that several variations of this hormone can occur in neotropical species.

BANKING MEMBERS:
Interno - 2121279 - LEANDRO NASSAR COUTINHO
Interno - 748.420.568-00 - WILTER RICARDO RUSSIANO VICENTE - UNESP
Externo à Instituição - PALOMA ROCHA ARAKAKI HENRIQUES
Externa à Instituição - ALINE AMARAL IMBELONI - IEC
Externa à Instituição - RAFAELA SAYURI CICALISE TAKESHITA
Externa à Instituição - TATIANA KUGELMEIER - Fiocruz - RJ