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Académico
Instituto de Ciencia Animal

Grado Académico: Médico Veterinario, Universidad Nacional de La Plata, Argentina, 1986. Master en Ciencias, especialidad: Reproducción Animal, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Chile, 1994. PhD, Department of Veterinary Biomedical Science, Western College of Veterinary Medicine, University of Saskatchewan, Canada, 2005. Posdoctoral Fellowship, Department of Obstetrics and Gynecology, College of Medicine, Royal University Hospital, University of Saskatchewan, Canada, 2008.

E-mail: marceloratto@uach.cl

Teléfono: 632293063

Líneas investigación: Biología y Fisiología reproductiva en Camélidos y Bovinos, Endocrinología y Técnicas de Reproducción Asistida en especies domésticas y exóticas.

Publicaciones

Marcelo Ratto

2019 The effect of seminal plasma β-NGF on follicular fluid hormone concentration and gene expression of steroidogenic enzymes in llama granulosa cells. Reprod Biol Endocrinol

2019 New insights of the role of β-NGF in the ovulation mechanism of induced ovulating species. Reproduction. REP-18-0305.R2

2019 Functional expression of the free fatty acids receptor-1 and -4 (FFA1/GPR40 and FFA4/GPR120) in bovine endometrial cells. Vet Res Commun. 2019 Aug;43(3):179-186

2018 Uterine endometrial vascularization during ovarian growth in llamas: The effect of estradiol plasma concentration. Theriogenology 106, 164-169

2018 Source and localization of ovulation- inducing factor/nerve growth factor in male reproductive tissues among mammalian species. Biology of Reproduction 99: 1194-1204. https://doi.org/10.1093/biolre/ioy149

2018 Natural and controlled ovulation in South American camelids. Animal Reproduction, Volume 15, Issue Supplement 1, 996-1002

2018 Expression of β-NGF and high affinity NGF receptor (TrKA) in llama (lama glama) male reproductive tract and spermatozoa. Molecular Reproduction and Development 85, 934-944

2017 The association between subclinical mastitis around calving and reproductive performance in dairy cows in Colombia. Animal Reproduction 185, 109-117

2017 Nerve growth factor from seminal plasma origin (spβ-NGF) increases CL vascularization and level of mRNA expression of steroidogenic enzymes during the early stage of Corpus Luteum development in llamas. Theriogenology 103, 69-75

2017 Effect of oocyte maturation time, sperm selection method and oxygen tension on in vitro embryo development in alpacas. Theriogenology 95, 127-132.

2017 Butyrate concentration before and after calving is not associated with the odds of subclinical mastitis in grazing dairy cows. Livestock Science 198, 195-200

2017 A comparative study of the effects of intramuscular administration of gonadorelin, mating and intrauterine infusion of either raw seminal plasma or seminal plasma purified β-NGF on luteal development in llamas. Reproduction in Domestic Animals

2016 Tissue localization of GM-CSF receptor in bovine ovarian follicles and its role on glucose uptake by mural granulosa cells. Anim. Reprod. Sci. 170: 157-169.

2016 Seminal Plasma Induces Ovulation in Llamas in the Absence of a Copulatory Stimulus: Role of Nerve Growth Factor as an Ovulation-Inducing Factor. Endocrinology 157: 3224‚Äì3232.

2016 Ovulation-inducing factor (OIF/NGF) in seminal plasma: A review and update. Reproduction in Domestic Animals. Reproduction in Domestic Animals 51, 4-17.

2015 LH release and ovulatory response after intramuscular, intravenous, and intrauterine administration of Œ≤-NGF of seminal plasma origin in female llamas. Theriogenology 84: 1096-1102. http://dx.doi.org/10.1016/j.theriogenology.2015.06.006.

2015 In vitro developmental competence of alpaca (Vicugna pacos) and llama (Lama glama) oocytes after parthenogenetic activation. Small Ruminant Research 133: 148-152. DOI information: 10.1016/j.smallrumres. 2015.08.014.

2014 Use of hypometabolic TRIS extenders and high cooling rate refrigeration for cryopreservation of stallion sperm: presence and sensitivity of 5' AMP-activated protein kinase (AMPK) Cryobiology 69, 473-481

2014 The effect of repeated administrations of llama ovulation-inducing factor (OIF/NGF) during the peri-ovulatory period on corpus luteum development and function in llamas. Anim Reprod Sci. 149, 345-352.

2014 Ovulation-inducing factor (OIF/NGF) from seminal plasma origin enhances Corpus Luteum function in llamas regardless the preovulatory follicle diameter. Anim Reprod Sci. 148, 221-227.

2014 Luteotrophic effect of ovulation-inducing factor/nerve growth factor present in the seminal plasma of llamas. Theriogenology 81(8):1101-1107.

2013 Vitrification of in vitro mature alpaca oocyte: Effect of ethylene glycol concentration and time of exposure in the equilibration and vitrification solutions. Animal Reproduction Science 143: 72-78

2013 Relationship between systemic leptin concentration, and reproductive state in llamas (Lama glama) from southern Chile. Small Ruminant Research 113: 402-404.

2013 Ovulation-inducing factor in seminal plasma: A review. Animal Reproduction Science 136: 148-156.

2013 Induction of superovulation in South American Camelids. Animal Reproduction Science 136: 164-169.

2013 Granulocyte-macrophage colony stimulating factor (GM-CSF) enhances cumulus cell expansion in bovine oocytes. Reproductive Biology and Endocrinology 2013 11:55.

2013 Effects of nutritional restriction on metabolic, endocrine, and ovarian function in llamas (Lama glama). Animal Reproduction Science 138: 252-260

2012 The Nerve of Ovulation Inducing Factor. The Proceedings National of Academy of Sciences of United States of America (PNAS).

2012 Ovulation-inducing factor (OIF) induces LH secretion from pituitary cells. Animal Reproduction Science 133: 117-122.

2012 Ovarian estradiol modulates the stimulatory effect of ovulation-inducing factor (OIF) on pituitary LH secretion in llamas Theriogenology 77: 1873-1882.

2012 GnRH dose reduction decreases pituitary LH release and ovulatory response but does not affect CL development and function in llamas. Theriogenology 77: 1802-1810.

2012 Effect of purified llama ovulation inducing factor (OIF) on ovarian function in cattle. Theriogenology 78: 1030-1039

2012 Development of stallion sperm cryopreservation extenders by analysis of semen quality and new cryocapacitation markers. Cryobiology 65: 352

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Marcelo Ratto
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