Recursos de colección

Universidad Nacional de La Plata (86.595 recursos)

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Mostrando recursos 1 - 7 de 7

  1. V Jornada en Medicina Deportiva Equina

    Facultad de Ciencias Veterinarias
    Presentación Programa Ponencias Determinando factores de riesgo en accidentes en carreras de Hipódromos pertenecientes a OSAF | Teresita Zambrano El programa de necropsias de caballos de carrera de California | Francisco Uzal Breve descripción de las lesiones musculo esqueléticas más comunes en caballos de carrera | Francisco Uzal

  2. VI Jornada y I Taller en Medicina Equina

    Facultad de Ciencias Veterinarias
    Presentación Programa Ponencias Infecciones por Corynebacterium pseudotuberculosis en caballos: Aumento de la frecuencia y propagación a nuevas regiones de América del Norte | S. J. Spier y V. Azevedo Abscesos abdominales por Corynebacterium pseudotuberculosis | MaryBeth Whitcomb & Sharon Spier Traumatismos penetrantes del casco de equino - Diagnóstico y tratamiento incluyendo perfusión regional de la porción distal de los miembros | Isabelle Kilcoyne Actualización en diagnóstico y tratamiento de cólico equino | Isabelle Kilcoyne

  3. Postnatal exposure to a progestin does not prevent uterine adenogenesis in domestic dogs

    Ponchon, Tamara; López Merlo, Mariana; Faya, Marcela; Priotto, Marcelo; Barbeito, Claudio Gustavo; Gobello, Cristina
    To assess the effects of a single supraphysiological postnatal administration of a progestogen on uterine glands in dogs, 10 females were randomly assigned to a medroxyprogesterone acetate 35 mg (MPA; n = 6) or placebo (n = 4) group within the first 24 h of birth. The safety of the treatment was also evaluated. A transient mild clitoris enlargement appeared in MPA-treated females. Microscopic postpubertal uterine assessment revealed the presence of uterine glands in all cases without significant differences in the area occupied by the glands per μm2 of endometrium nor in the height of the uterine epithelium.

  4. Experimental poisoning of goats by Ipomoea carnea subsp. fistulosa in Argentina: a clinic and pathological correlation with special consideration on the central nervous system

    Ríos, Elvio E.; Cholich, Luciana; Gimeno, Eduardo Juan; Guidi, María Guadalupe; Acosta de Pérez, Ofelia C.
    Ipomoea carnea subsp. fistulosa, aguapei or mandiyura, is responsible for lysosomal storage in goats. The shrub contains several alkaloids, mainly swansonine which inhibits lysosomal α-mannosidase and Golgi mannosidase II. Poisoning occurs by inhibition of these hydrolases. There is neuronal vacuolation, endocrine dysfunction, cardiovascular and gastrointestinal injury, and immune disorders. Clinical signs and pathology of the experimental poisoning of goats by Ipomoea carnea in Argentina are here described. Five goats received fresh leaves and stems of Ipomoea. At the beginning, the goats did not consume the plant, but later, it was preferred over any other forage. High dose induced rapid intoxication,...

  5. Lectin histochemical aspects of the ovarian lamellae epithelium of Genypterus blacodes (Schneider, 1801)

    Díaz, Alcira Ofelia; Freijo, Roberto O.; García, Alicia Mabel; Portiansky, Enrique Leo; Barbeito, Claudio Gustavo; Macchi, Gustavo J.
    The composition and distribution of the glycoconjugates (GCs) secreted by the epithelium of ovarian lamellae with reference to the reproductive biology of Genypterus blacodes (Schneider, 1801) through lectin hi stochemistry is here discussed. In this species, the epithelial cells that line the ovarian c avity presented sharp morphological variations along the reproductive cycle related to the mucus secretion that accompanies oocyte ma turation. During sp awning season, residues of mannose and N-acetylglucosamine were detected in the glycocalyx of those cells using lectinhistochemistry. N-acetylgalactosamine and fucose were also observed in the same zone. The greatest variations in the lectinhistochemical pattern were...

  6. Association between GNRHR, LHR and IGF1 polymorphisms and timing of puberty in male Angus cattle

    Lirón, Juan Pedro; Prando, Alberto José; Fernández, María Elena; Ripoli, María Verónica; Rogberg Muñoz, Andrés; Goszczynski, Daniel Estanislao; Posik, Diego Manuel; Peral García, Pilar; Baldo, Andrés; Giovambattista, Guillermo
    Background: In bovines, there are significant differences within and among beef breeds in the time when bulls reach puberty. Although the timing of puberty is likely to be a multigenic trait, previous studies indicate that there may also be single genes that exert major effects on the timing of puberty within the general population. Despite its economic importance, there are not many SNPs or genetic markers associated with the age of puberty in male cattle. In the present work, we selected three candidate genes, GNRHR, LHR and IGF1, and associated their polymorphisms with the age of puberty in Angus male...

  7. Increased number of neurons in the cervical spinal cord of aged female rats

    Portiansky, Enrique Leo; Nishida, Fabián; Barbeito, Claudio Gustavo; Gimeno, Eduardo Juan; Goya, Rodolfo Gustavo
    In the brain, specific signaling pathways localized in highly organized regions called niches allow the persistence of a pool of stem and progenitor cells that generate new neurons in adulthood. Much less is known about the spinal cord where a sustained adult neurogenesis is not observed. Moreover, there is scarce information concerning cell proliferation in the adult mammalian spinal cord and virtually none in aging animals or humans. We performed a comparative morphometric and immunofluorescence study of the entire cervical region (C1-C8) in young (5 mo.) and aged (30 mo.) female rats. Serum prolactin (PRL), a neurogenic hormone, was also...

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