Lopes Gerson P, Santos Regiane R, Almeida Débora V, Brito Adriel B, Queiroz Helder L, Domingues Sheyla F S
Federal University of Pará,Postgraduate Program in Animal Science,Belém,Pará,Brazil.
Federal University of Pará,Laboratory of Wild Animal Biology and Medicine,BR 316 Km 61,CEP 687406970,Castanhal,Pará,Brazil.
Zygote. 2017 Jun;25(3):279-287. doi: 10.1017/S0967199417000107. Epub 2017 May 23.
We describe morphological and morphometrical characteristics of preantral ovarian follicles from three recently recognized Saimiri species: S. macrodon, S. cassiquiarensis and S. vanzolinii; the last one a threatened species. Ovaries from four adult monkeys were evaluated: one pair from a pregnant S. macrodon, two ovarian pairs from S. cassiquiarensis females (one of them pregnant), and one left ovary from a senile S. vanzolinii, applying classical histology. Follicular preantral population was quantified and morphology and morphometry of primordial, primary and secondary follicles were evaluated. Follicular preantral population varied among species, being 347,153 in the ovaries of the S. macrodon, 270,342 and 278,376 in the ovaries of both adult non-pregnant and pregnant S. cassiquiarensis females, and 28,149 in the ovary from a senile S. vanzolinii. Most follicles were at primordial or transition stages, except for the senile S. vanzolinii female, which presented the lowest percentages of primordial and transition follicles when compared with primary and secondary ones. Most preantral follicles (>70%) were morphologically normal in the ovaries from all studied S. macrodon and S. cassiquiarensis females, but the ovary of the senile S. vanzolinii female presented a significant decrease in the percentage of normal follicles (primordial: 61%, transition: 52%, primary: 54%, and secondary: 48%). In general, follicular diameter increased significantly from primordial to transition, and subsequently from primary to secondary follicles.
我们描述了三种最近才被确认的松鼠猴属物种（大齿松鼠猴、卡西奎拉松鼠猴和范佐林松鼠猴，其中最后一种为濒危物种）窦前卵泡的形态学和形态测量学特征。应用经典组织学方法，对四只成年猴子的卵巢进行了评估：一对来自怀孕的大齿松鼠猴，两对卵巢来自卡西奎拉松鼠猴雌性（其中一只怀孕），以及一只来自老年范佐林松鼠猴的左卵巢。对窦前卵泡群体进行了量化，并评估了原始卵泡、初级卵泡和次级卵泡的形态和形态测量。窦前卵泡群体在不同物种间存在差异，大齿松鼠猴卵巢中的为347,153个，成年未怀孕和怀孕的卡西奎拉松鼠猴雌性卵巢中的分别为270,342个和278,376个，而老年范佐林松鼠猴卵巢中的为28,149个。除老年范佐林松鼠猴外，大多数卵泡处于原始或过渡阶段，与初级卵泡和次级卵泡相比，其原始卵泡和过渡卵泡的比例最低。在所有研究的大齿松鼠猴和卡西奎拉松鼠猴雌性的卵巢中，大多数窦前卵泡（>70%）形态正常，但老年范佐林松鼠猴雌性的卵巢中正常卵泡的比例显著降低（原始卵泡：61%，过渡卵泡：52%，初级卵泡：54%，次级卵泡：48%）。一般来说，卵泡直径从原始卵泡到过渡卵泡显著增加，随后从初级卵泡到次级卵泡也显著增加。
