Marcelo H Ratto
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Explore the profile of Marcelo H Ratto including associated specialties, affiliations and a list of published articles.
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31
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301
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Recent Articles
11.
Sari L, Zampini R, Arganaraz M, Ratto M, Apichela S
Mol Reprod Dev
. 2020 Oct;
87(11):1133-1140.
PMID: 33022130
Copulation produces different stimuli in the female reproductive tract in camelids, which lead to ovulation. Expression of β-nerve growth factor (β-NGF) and its specific receptor, tropomyosin receptor kinase A (TrKA),...
12.
Silva M, Paiva L, Ratto M
Theriogenology
. 2020 Feb;
150:280-287.
PMID: 32088046
The ovulation-inducing effect of seminal plasma was first suggested in Bactrian camels over 30 years ago, initiating a long search to identify the 'ovulation-inducing factor' (OIF) present in camelids semen....
13.
Bergfelt D, Blum J, Ratner J, Ratto M, OBrien J, Robeck T
J Zoo Biol
. 2019 Dec;
2(1):21-29.
PMID: 31799514
In the seminal plasma of terrestrial mammalian species known as induced (e.g., camels) and spontaneous (e.g., cattle) ovulators, an ovulation-inducing factor (OIF) with a protein structure similar to beta-nerve growth...
14.
Valderrama X, Goicochea J, Silva M, Ratto M
Reprod Biol Endocrinol
. 2019 Jul;
17(1):60.
PMID: 31331332
Background: Nerve growth factor (β-NGF) from llama seminal plasma has been described as a potent ovulatory and luteotrophic molecule after intramuscular or intrauterine infusion in llamas and alpacas. We tested...
15.
Ratto M, Berland M, Silva M, Adams G
Reproduction
. 2019 Feb;
157(5):R199-R207.
PMID: 30763273
The type of stimuli triggering GnRH secretion has been used to classify mammalian species into two categories: spontaneous or induced ovulators. In the former, ovarian steroids produced by a mature...
16.
Urra F, Ratto M, Silva M
Theriogenology
. 2018 Oct;
125:18-23.
PMID: 30368128
The aim of this study was to evaluate the endometrial vascularization area (EVA) of both uterine horns in llamas subjected to different intrauterine treatments resembling physiological conditions after a single...
17.
Bogle O, Carrasco R, Ratto M, Singh J, Adams G
Biol Reprod
. 2018 Jul;
99(6):1194-1204.
PMID: 29982342
The objectives of the study were to compare the presence and localization of ovulation-inducing factor (OIF)/nerve growth factor (NGF) in male reproductive organs and determine the abundance in ejaculates of...
18.
Ruiz J, Paulo Santayana R, Jose Mendoza M, Leandra Landeo J, Huaman E, Ticllacuri F, et al.
Theriogenology
. 2017 May;
95:127-132.
PMID: 28460666
We evaluated the effect of in vitro maturation time, sperm selection and oxygen tension on alpaca embryo development. In Experiment I, Cumulus Oocyte- Complexes (COCs) were obtained from abattoir ovaries...
19.
Berland M, Ulloa-Leal C, Barria M, Wright H, Dissen G, Silva M, et al.
Endocrinology
. 2016 Jun;
157(8):3224-32.
PMID: 27355492
Llamas are considered to be reflex ovulators. However, semen from these animals is reported to be rich in ovulation-inducing factor(s), one of which has been identified as nerve growth factor...
20.
Peralta O, Bucher D, Fernandez A, Berland M, Strobel P, Ramirez A, et al.
Reprod Biol Endocrinol
. 2013 Jun;
11:55.
PMID: 23799974
Background: The objectives of the study were to characterize the expression of the α- and β-subunits of granulocyte-macrophage colony stimulating factor (GM-CSF) receptor in bovine cumulus cells and oocytes and...