The effects of estradiol and progesterone on the growth and differentiation of the quail oviduct

Boogaard, C. L.; Finnegan, Cyril V.

doi:10.1139/z76-036

Cited by 14 publications

(6 citation statements)

References 52 publications

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“…On the other hand, previous studies showed that treatment of oestradiol regulates oviduct differentiation and function in young laying hens, and enhances oviduct growth by increasing the size, weight and content of the tissue protein, RNA, and DNA in Japanese quails (Schimke et al, 1975;Boogard & Fnnengan, 1976). Furthermore, there is a positive relationship between oestrogen and prostaglandin F, because Takahashi et al (2004) observed an increase in prostaglandin F concentration and the specific binding of [ 3 H]E 2 of oestrogen receptor in the uterine tissue of laying hens by injecting estradiol-17β.…”

Section: Discussionmentioning

confidence: 99%

The effects of various dietary vegetable oil sources on villi morphology and liver aldehydes in young layers

Adabi¹,

Hajibabaei²,

Casey³

et al. 2016

SA J. An. Sci.

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Twenty-six-week-old laying hens (90 Lohmann Classic Brown) received dietary treatments containing canola and linseed oil at 2% inclusion levels and a control diet for 21 days. The 2% dietary linseed oil, which had higher total polyunsaturated fatty acids (ΣPUFA) and linolenic fatty acid contents, resulted in higher liver malondialdehyde and wider villi than the control group. The 2% canola and linseed oil treatments recorded smaller reproductive organs relative to live weight than the control group. It was concluded that young layers might have an anatomical response to high levels of dietary PUFA, which might improve nutrient absorption and cause a biochemical response, resulting in potentially negative cytotoxic aldehydic lipid peroxidation products. ______________________________________________________________________________________

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Section: Discussionmentioning

confidence: 99%

The effects of various dietary vegetable oil sources on villi morphology and liver aldehydes in young layers

Adabi¹,

Hajibabaei²,

Casey³

et al. 2016

SA J. An. Sci.

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“…In the avian, FSH has a role in the regulation of oestrogen production by developing ovarian follicles (Gonzalez‐Moran, 1998). Oestrogen is known to stimulate the formation of tubular glands in the avian oviduct, whilst progesterone is responsible for the induction of the synthesis of egg white proteins (Boogaard and Finnegen, 1976; Pageaux et al, 1986; Joensuu and Tuohimaa, 1989). Whether the tubular glands in the current study were functionally active is unclear.…”

Section: Discussionmentioning

confidence: 99%

A Study of the Immunohistochemical Localization of the Progesterone and Oestrogen Receptors in the Magnum of the Immature Ostrich, Struthio camelus

Madekurozwa¹

2002

Anat Histol Embryol

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The immunolocalization of the progesterone (PR) and oestrogen receptors (OR), in the magnum of the immature ostrich, was investigated during periods of ovarian activity and inactivity. In the immature ostrich, with an active ovary, numerous well-developed tubular glands were present in the lamina propria. Significantly, PR immunostaining was strong in the surface epithelium and tubular glands of these birds. In contrast, weak staining for the PR was observed in the surface epithelium of birds with inactive ovaries. Tubular gland formation, in these birds, was indicated by bud-like invaginations of the surface epithelium. Oestrogen receptor immunoreactivity was negligible in both birds with active and inactive ovaries. These findings suggest that steroid hormones, produced by the active ovary of the immature ostrich, influence the differentiation of the magnum. Furthermore, the action of these steroid hormones appears to be mediated through the PR.

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“…Many authors have equated the proliferation and hypertrophy which result from chronic oestrogen treatment at pharmocological doses with the events that constitute the normal development of the avian oviduct (Kohler, Grimley & O'Malley, 1968O'Malley & McGuire, 1968;Oka & Schimke, 1969aAc;Palmiter & Wrenn, 1971;Boogard & Finnegan, 1976). As we have demonstrated using castrated and hypophysectomized quail, such treat¬ ments have overestimated the role of oestradiol (Laugier, Sandoz, Brard & Sonnenschein, 1978;Laugier, Sonnenschein & Brard, 1980).…”

Section: Discussionmentioning

confidence: 99%

“…The structural development and function of the avian oviduct in response to exogenous sex steroids has been extensively explored by several groups (Oka & Schimke, 1969a, b; O'Malley, McGuire Köhler & Korenman, 1969;Palmiter & Wrenn, 1971 Laugier, Brard, Sandoz, Boisvieux-Ulrich, Laugier Schimke, McKnight, Shapiro et al 1975;Boogard & Finnegan, 1976;Palmiter, Mulvihill, McKnight & Senear, 1978). There is, however, no clear information about growth, cytodifferentiation and function of cell types of the oviduct in relation to endogenous hor¬ mone concentrations.…”

Section: Introductionmentioning

confidence: 99%

Development of the oviduct in quail during sexual maturation in relation to plasma concentrations of oestradiol and progesterone

Pageaux¹,

Laugier²,

Pal³

et al. 1984

Journal of Endocrinology

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The macromolecular content (DNA, soluble proteins and ovalbumin) of the magnum and the plasma concentrations of oestradiol and progesterone were studied during sexual development of the Japanese quail. Rapid growth and differentiation of the magnum began between 21 and 28 days of age and rapidly reached the laying stage in about 20 days. This rapid change in magnum size occurred in a stepwise manner: cellular proliferation was observed first, followed by the synthesis and accumulation of specific proteins. Just before and during magnum growth, plasma oestradiol and progesterone concentrations followed different patterns: the initiation of epithelial cell proliferation was preceded by a sharp decrease in plasma progesterone. Maximum cell division occurred while plasma progesterone levels continued to decrease slightly; at the same time, oestradiol increased from 0.098 to 0.453 nmol/l. The decrease and finally the cessation of cell proliferation and the concomitant increase in ovalbumin concentration were related to almost constant levels of plasma oestradiol and increasing levels of plasma progesterone. Further development of the magnum (above 2.3 g weight) involving only the accumulation of secretory products was associated with an increased value of plasma progesterone. These data are consistent with the hypothesis that there are multiple hormonal signals controlling cell proliferation and synthesis of egg-white proteins in the oviduct. Progesterone may be one of the key signals that regulates the initiation of oviduct growth in the quail.

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The effects of estradiol and progesterone on the growth and differentiation of the quail oviduct

Cited by 14 publications

References 52 publications

The effects of various dietary vegetable oil sources on villi morphology and liver aldehydes in young layers

The effects of various dietary vegetable oil sources on villi morphology and liver aldehydes in young layers

A Study of the Immunohistochemical Localization of the Progesterone and Oestrogen Receptors in the Magnum of the Immature Ostrich, Struthio camelus

Development of the oviduct in quail during sexual maturation in relation to plasma concentrations of oestradiol and progesterone

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