Navegando por CNPq "CNPQ::CIENCIAS AGRARIAS::MEDICINA VETERINARIA::REPRODUCAO ANIMAL::GINECOLOGIA E ANDROLOGIA ANIMAL"

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Acesso aberto (Open Access)
Análise imunohistológica e desenvolvimento folicular após auto-transplante de tecido ovariano de macaca de cheiro Saimiri collinsi
(Universidade Federal do Pará, 2014-12-11) SCALERCIO, Sarah Raphaella Rocha de Azevedo; DOMINGUES, Sheyla Farhayldes Souza; http://lattes.cnpq.br/2794753357251149; SANTOS, Regiane Rodrigues dos; http://lattes.cnpq.br/0500967766886604
The main objective of the present work was to study ovarian folliculogenesis in Saimiri sciureus. Therefore, we evaluated the expression of intra-ovarian factors related with the follicular development, inhibition and cell proliferation, as well as investigation the effects of pretreatment with vitamin E analogue, Trolox, on the viability and follicular function, apoptosis index, cell proliferation, vascularization and fibrosis after auto-transplanted of fresh ovarian tissue. It was possible for the first time imuno localize proteins expressed as: growth and differentiation factor -9 (GDF -9), c- kit/Kit Ligand and Ki-67 and confirm the expression of anti-Mullerian Hormone (AMH) in different stages of follicular development in squirrel monkey ovary. Regarding pre-incubation with the Trolox antioxidant, it can improves follicular survival after autotransplantation, decrease apoptosis rates in stromal cells, although increase areas of fibrosis after graft. Our results suggest that fresh ovarian tissue can be grafted and incubated without major impact on early follicular growth and morphology after subcutaneous autotransplantation for a short-term. We believe that our results provide an important contribution to understanding the process of folliculogenesis in neotropical monkeys. This knowledge is an important tool to evaluate follicular viability and functionality after cryopreservation of ovarian tissue transplantation and in vitro culture of early follicles, especially for animals at risk of extinction and women that are undergoing to chemotherapy and radiation with risk of loss fertility.
Acesso aberto (Open Access)
Prevalência de alterações clínicas e histopatológicas do sistema genital de búfalas (Bubalus bubalis) no Estado do Amapá
(Universidade Federal do Pará, 2007) MOURÃO, Fábio Rodrigo Paixão; RIBEIRO, Haroldo Francisco Lobato; http://lattes.cnpq.br/1614582293203770
Objecting to find out the prevalence of infertility diseases, 895 buffalo cows were submitted to clinical examination with main emphasis on the gynecological aspects and tuberculosis and brucellosis tests, located in Cutias do Araguari country, Amapá State, and analyzed 1000 genitals slaughtered buffalo cows. The prevalence of tuberculosis and brucellosis on clinical analysis were 9,33 and 9,11% respectively. On 895 clinical examined buffalos cows, 299 (33,41%) were pregnant, 188 (62,88%) on the right horn and 111 (37,12%) on left horn. On the buffalo cows group with some alteration, were discovered the following disorders: a) abnormal ovaries: non-functional ovaries, 75 (8,37%); follicular cysts, 6 (0,67%); b) oviduct abnormalities cases: slight adhesions, 24 (2,9%); severe adhesions, 22 (2,46%); hydrosalpinge, 8 (0,9%); c) uterine and cervical abnormalities cases: slight chronic endometrititis, 5 (0,56%); moderate chronic endometritis, 7 (0,78%); irregular cervix, 14 (2,9%); d) Vaginal and vulvar abnormalities cases: lacerated vulva, 9 (1,1%); totalizing 172 (19,21%) buffalo cows with some abnormalities. On the slaughtered buffalo cows were evidenced 661 (66,10%) of pregnancy buffalo cows, that 86 (8,6%) with some reproductive disorder and 339 (33,90%) not pregnancy buffalo cows with 74 (7,4%) with some reproductive disorder. In 661 pregnancy, 412 (62,3%) were in right horn and 249 (37,7%) on left horn. The reproductive abnormalities found were: a) ovarian abnormalities cases: non-functional ovaries, 16 (1,6%); para-ovarian cysts, 5 (0,5%), epithelial inclusion cysts, 8 (0,8%); follicular cysts, 1 (0,1%); b) oviductal abnormalities cases: hydrosalpinge, 18 (1,8%); tubo-ovarian cysts, 5 (0,5%); slight adhesions, 70 (7,0%); severe adhesions 21 (2,1%); c) uterine and cervical abnormalities: entometritis, 9 (0,9%); perimetritis, 3 (0,3%); adenomiosis, 1 (0,1%); segmental aplasia of uterus, 1 (0,1%); twining, 1 (0,1%); irregular cervix, 1 (0,1%). The major percentage of fetus were found on final third of gestation with 236 (35,65%) cases. Several are the problems that can affect the fertility of buffaloes cows and we need to identify it to solve the problems of productivity.