tailieunhanh - Follicular fluid content and oocyte quality: from single biochemical markers to metabolomics

To determine if the presence of reproductive messages is a long term, enduring feature of song lyrics, the fourth study was based on a content analysis of the lyrics contained in a sample of representative art songs and opera aria dating back as far as 1597. Arias are usually a melodic segment set within the context of a larger composition called an opera. Though arias are often performed independent of the full opera, they derive much of their meaning from the framework of the surrounding composition. In contrast, Art songs are smaller scale compositions that. | Reproductive Biology and Endocrinology BioMed Central Open Access Review Follicular fluid content and oocyte quality from single biochemical markers to metabolomics Alberto Revelli 1 Luisa Delle Piane1 Simona Casano1 Emanuela Molinari1 Marco Massobrio1 and Paolo Rinaudo2 Address Reproductive Medicine and IVF Unit Department of Obstetrical and Gynecological Sciences University of Torino Via Ventimiglia 3 10126 Torino Italy and - Department of Obstetrics Gynecology and Reproductive Sciences University of California San Francisco USA Email Alberto Revelli - Luisa Delle Piane - Simona Casano - Emanuela Molinari - Marco Massobrio - Paolo Rinaudo - rinaudo@ Corresponding author Published 4 May 2009 Received 25 August 2008 Reproductive Biology and Endocrinology 2009 7 40 doi 1477-7827-7-40 Accepted 4 May 2009 This article is available from http content 7 1 40 2009 Revelli et al licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License http licenses by which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract The assessment of oocyte quality in human in vitro fertilization IVF is getting increasing attention from embryologists. Oocyte selection and the identification of the best oocytes in fact would help to limit embryo overproduction and to improve the results of oocyte cryostorage programs. Follicular fluid FF is easily available during oocyte pick-up and theorically represents an optimal source on non-invasive biochemical predictors of oocyte quality. Unfortunately however the studies aiming to find a good molecular predictor of oocyte quality in FF were not able to identify substances that could be used as reliable markers of oocyte competence to