Tacora johanni, a new species from Rondônia State, North Brazil, is described and illustrated. The new species can be recognized by the male genital features, especially the subgenital plates with the basal half distinctly expanded and with outer lateral margin round, the long and slender preapical pygofer process, and the styles with apical half strongly curved. Also, the genus is recorded for...

background: this study was conducted to evaluate fibroblast co-culture and activin a on in vitro maturation and fertilization of mouse preantral follicles. methods: the ovaries from 12-14-day-old mice were dissected, and 120-150 μm preantral follicles were cultured individually in α-mem as based medium for 12 days. a total number of 456 follicles were cultured in four conditions: (i) base mediu...

progestagens have been used in order to control follide wave dynamics in camelids, however, the results are contra versial.the purpose of this study was to investigate the effect of single norgestomet implant on ovarian follicle development in bactrian camel. bactrian camels (n=8; 6-14 years old) were assigned randomly to two groups. norgestomet treated group (n=4) received one implant of norge...

objectives: it was aimed to investigate the effects of different doses of follicle stimulating hormone (fsh) and activin a on the growth and maturation of preantral mouse follicles during the in vitro culture. methods: preantral follicles (90-100 µm in diameter) were harvested from 6-8 week-old syrian mice and cultured in tcm199 culture medium for 6 days to see the effect of fsh and activin a. ...

This review will focus on the main findings of our experiments that used B-mode and color-Doppler ultrasonography during the preovulatory period to study the morphological and blood flow/perfusion changes of the preovulatory follicle in mares. The topics to be addressed herein will be: ultrasonographic characteristics of the preovulatory follicle; B-mode echotextural changes of the follicle wal...

case presentation a 13-year-old boy, in the case presented in this article, had 15 unerupted teeth, each associated with hyperplastic pericoronal tissue. conclusions the purpose of this article is to report an example of this entity and describe the histopathologic characteristics that helps diagnose and treat such condition in the most appropriate manner. introduction pathologic changes may oc...

Follicle growth and associated changes in circulating hormone concentrations were evaluated after follicle ablation in mares (n = 13) during four 13 day periods beginning at means of -98.5, -61.4, -26.0 and 10 days from the first ovulation and corresponding to mid-anovulatory, early-transitional, late-transitional and ovulatory periods, respectively. During each period, all follicles > 5 mm in ...