Search Results - "Scaramuzzi, R.J."

The effect of nutrition and metabolic status on the development of follicles, oocytes and embryos in ruminants by Dupont, J., Scaramuzzi, R. J., Reverchon, M.

“…The impact of nutrition and energy reserves on the fertility of ruminants has been extensively described. However, the metabolic factors and the molecular…”
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The expression of ERα, OTR, cPLA2, COX-2, and PPARγ in the cervix of the ewe during the estrous cycle by Falchi, L, Scaramuzzi, R.J

“…The ovine cervix relaxes at estrus allowing easier entry of spermatozoa into the uterus. The mechanism responsible for this relaxation is not fully elucidated…”
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New insights into the influence of breed and time of the year on the response of ewes to the ‘ram effect’ by Chanvallon, A., Sagot, L., Pottier, E., Debus, N., François, D., Fassier, T., Scaramuzzi, R. J., Fabre-Nys, C.

“…Exposure of anoestrous ewes to rams induces an increase in LH secretion, eventually leading to ovulation. This technique therefore is an effective, low-cost…”
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mRNA expression of prostaglandin E receptors EP₂ and EP₄ and the changes in glycosaminoglycans in the sheep cervix during the estrous cycle by Kershaw-Young, C.M, Khalid, M, McGowan, M.R, Pitsillides, A.A, Scaramuzzi, R.J

“…Transcervical artificial insemination in sheep is limited by the inability to completely penetrate the cervix with an inseminating pipette. Penetration is…”
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The pattern of cervical penetration and the effect of topical treatment with prostaglandin and/or FSH and oxytocin on the depth of cervical penetration in the ewe during the peri-ovulatory period by Falchi, L, Taema, M, La Clanche, S, Scaramuzzi, R.J

“…Artificial insemination in sheep has two major limiting factors: the poor quality of frozen-thawed ram semen and the convoluted anatomy of the sheep cervix…”
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The expression of angiogenic growth factors and their receptors in ovarian follicles throughout the estrous cycle in the ewe by Chowdhury, M.W.H., Scaramuzzi, R.J., Wheeler-Jones, C.P.D., Khalid, M.

“…Healthy follicles are highly vascularized whereas those undergoing atresia have poor vascularity, suggesting a relationship between follicular vascularization…”
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Insights into the mechanism by which kisspeptin stimulates a preovulatory LH surge and ovulation in seasonally acyclic ewes: Potential role of estradiol by Sébert, M.-E., Lomet, D., Saïd, S. Ben, Monget, P., Briant, C., Scaramuzzi, R.J., Caraty, A.

“…We have previously demonstrated that a constant intravenous infusion of kisspeptin (Kp) for 48 h in anestrous ewes induces a preovulatory luteinizing hormone…”
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Intra-cervical application of Misoprostol at estrus alters the content of cervical hyaluronan and the mRNA expression of follicle stimulating hormone receptor (FSHR), luteinizing hormone receptor (LHR) and cyclooxygenase-2 in the ewe by Leethongdee, S., Kershaw-Young, C.M., Scaramuzzi, R.J., Khalid, M.

“…The complex anatomy the of ovine cervix limits the success of transcervical artificial insemination in sheep, but Misoprostol (a PGE1 analogue) relaxes the…”
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Nutritional supplementation improves ovulation and pregnancy rates in female goats managed under natural grazing conditions and exposed to the male effect by Fitz-Rodríguez, G., De Santiago-Miramontes, M.A., Scaramuzzi, R.J., Malpaux, B., Delgadillo, J.A.

“…Two experiments were conducted to determine if nutritional supplementation improved ovulation and pregnancy rates in female goats managed under grazing…”
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effect of estradiol on COX-2, EP₂, and EP₄ mRNA expression and the extracellular matrix in the cervix of the hypogonadotrophic, ovariectomized ewe by Kershaw-Young, C.M, Scaramuzzi, R.J, McGowan, M.R, Pitsillides, A.A, Wheeler-Jones, C.P.D, Khalid, M

“…There is a degree of cervical relaxation in the ewe at estrus that is regulated by changes in prostaglandin synthesis, prostaglandin receptor expression, and…”
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Conception rate after fixed time insemination following ovsynch protocol with and without progesterone supplementation in cyclic and non-cyclic Mediterranean Italian buffaloes ( Bubalus bubalis) by De Rensis, F., Ronci, G., Guarneri, P., Nguyen, Bui Xuan, Presicce, G.A., Huszenicza, G., Scaramuzzi, R.J.

“…The aim of this study was to test the effect of progesterone supplementation to Ovsynch protocol in cyclic and non-cyclic Mediterranean Italian buffaloes on…”
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Early sexual experience and stressful conditions affect the response of young ewes to the male by Chanvallon, A, Scaramuzzi, R.J, Fabre-Nys, C

“…Abstract Exposure of anoestrous ewes to rams induces oestrous cycles (the ‘ram effect’). This response is poor in young-sexually naive females, possibly…”
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Nutrition et métabolisme : quel lien avec le développement folliculaire et embryonnaire ches les mammifères ? by J. DUPONT, R.J. SCARAMUZZI, P. FROMENT

“…L’influence du poids et des apports énergétiques sur la fertilité chez les animaux, mais aussi chez l’Homme est reconnue depuis très longtemps. Les animaux ou…”
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The ovulation rate in anoestrous female goats managed under grazing conditions and exposed to the male effect is increased by nutritional supplementation by De Santiago-Miramontes, M.A., Rivas-Muñoz, R., Muñoz-Gutiérrez, M., Malpaux, B., Scaramuzzi, R.J., Delgadillo, J.A.

“…This experiment was conducted to determine if feed supplementation before exposure of anoestrous does to males increases ovulation rate. Does ( n = 50) grazing…”
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Glucose uptake and lactate production by the autotransplanted ovary of the ewe during the luteal and follicular phases of the oestrous cycle by Scaramuzzi, R.J., Campbell, B.K., Souza, C.J.H., Baird, D.T.

“…Two experiments were carried out on ewes with ovarian autotransplants to estimate the ovarian uptake of glucose and production of lactate. The first was…”
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The effect of administering a dopamine agonist (Cabergoline) on follicular and luteal development during pro-estrus and estrus in the female greyhound by De Rensis, F., Spattini, G., Ballabio, R., Scaramuzzi, R.J.

“…To study the effect of the dopamine agonist Cabergoline, on ovarian activity in the female dog during pro-estrus and estrus, 6 greyhounds were treated with…”
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Follicular development and plasma concentrations of LH and prolactin in anestrous female dogs treated with the dopamine agonist cabergoline by Spattini, G., Borghi, V., Thuróczy, J., Balogh, L., Scaramuzzi, R.J., De Rensis, F.

“…The effect of a daily administration of a dopamine agonist (cabergoline, 5 μg/kg) for 4 weeks, starting about 95 days after the end of estrus on follicular…”
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Effect of season on luteal activity during the post partum period of dairy cows in temperate areas by De Rensis, F., López-Gatius, F., Capelli, T., Molina, E., Techakumphu, M., Scaramuzzi, R. J.

“…Seasonal effects on luteal activity during post partum were evaluated in two consecutive studies in 253 dairy cows in Northern Italy. In study 1, plasma…”
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Leptin expression in the fetus and placenta during mouse pregnancy by Malik, N.M., Carter, N.D., Wilson, C.A., Scaramuzzi, R.J., Stock, M.J., Murray, J.F.

“…During pregnancy, leptin concentrations in the maternal circulation are elevated in both humans and rodents but decrease to pre-pregnancy levels at birth,…”
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Seasonality in male Australian cashmere goats: Long term effects of castration and testosterone or oestradiol treatment on changes in LH, FSH and prolactin concentrations, and body growth by Walkden-Brown, S.W., Restall, B.J., Scaramuzzi, R.J., Martin, G.B., Blackberry, M.A.

“…Australian cashmere goat bucks exhibit marked seasonal changes in gonadotrophin secretion and growth. We investigated the mechanisms underlying these changes…”
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