977 resultados para Ford Taurus 1990.


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The insulin-like growth factor (IGF) system is related to quality of oocytes and embryos. The aim of this study was to investigate the mRNA levels of IGF1 and IGF2 and their receptors, IGFR1 and IGFR2, as well as IGFBP2, IGFBP4, and PAPP-A in oocytes from Nelore compared to Holstein cows. Pools of oocytes (20 oocytes/pool) from Nelore (n=8 pools) and Holstein (n=4 pools) were obtained via ovum pick-up (OPU, 10 sessions) and cumulus cells and zona pellucida were removed. The pools were submitted to total RNA extraction. Expression of members of the IGF system was assessed by real time RT-PCR. The mRNA expression of IGF1 and IGF2, IGFR1 and IGFR2, IGFBP2 and IGFBP4 was significantly higher (P<0.01) in oocytes from Holstein whereas the expression of PAPP-A was significantly higher (P<0.05) in oocytes from Nelore cows. The high PAPP-A expression and the low expression of IGFBP2 and IGFBP4 are associated with more efficient degradation of IGFBPs, which results in greater bioavailability of IGF in Nelore oocytes when compared to the Holstein. © 2013 Elsevier B.V.

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Expone algunas grandes líneas de reflexión del ILPES y su enfoque para renovar la planificación y coordinación de las políticas públicas; informa sobre la orientación actual de las divisiones o unidades técnicas del Instituto, los lineamientos para el trabajo en el próximo bienio, y un resumen de las actividades realizadas en 1988-1989.

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Contiene anexos con: Estructura intergubernamental y funciones de la CEPAL; principales órganos y reuniones del Sistema; Resolución 44/228 de la Asamblea General sobre la Conferencia de las Naciones Unidas sobre Medio Ambiente y Desarrollo; Resolución 40/243 también de la Asamblea General sobre el Plan de Conferencias; y Calendario de Conferencias Intergubernamentales de la CEPAL para el período 1990-1992.