III. IGFs and Their Receptors A. IGF peptides and receptors B. Expression of IGFs and IGF
receptors in the ovary C. Role of IGFs in ovulatory function and steroidogenesis

On the basis of gross and histologic study of ovaries, it was proposed in 1960 that two waves
of follicular activity occurred during bovine estrous cycles [1]. The two-wave hypothesis was …

The limited knowledge on the regulation of oocyte formation, the different steps of
folliculogenesis and the required conditions for oocytes to undergo proper growth …

Follicle deviation is proposed to be the eminent event in follicle selection in monovular
species. At deviation, the largest follicle establishes dominance apparently before the …

The paper presents an update of our 1993 model of ovarian follicular development in
ruminants, based on knowledge gained from the past 15 years of research. The model …

The eminent event in follicle selection during a follicular wave in monovular species is
diameter deviation, wherein one follicle continues to grow (developing dominant) and other …

Selection of the dominant follicle (DF) during a follicular wave is manifested by diameter
deviation or continued growth rate of the largest follicle (F1) and decreased growth rate of …

Involvement of insulin-like growth factors (IGFs) and IGF binding proteins (IGFBPs) in
ovarian folliculogenesis has been extensively studied during the last decade. In all …

Contents The aim of the present paper is to make a comparative study of the expression of
the elements of the insulin‐like growth factor (IGF) system in different mammalian species …

The insulin-like growth factors are major regulators of growth and development in mammals
and their presence in lower vertebrates suggests that they played a similarly fundamental …