Raffaella Sciajno

TL;DR: This prospective study provides further evidence in support of the already established association between elevated estrogen levels and breast cancer and provides new evidence that high serum testosterone levels precede breast cancer occurrence.

TL;DR: It is indicated that drinkers seem to be characterized by consistently higher estradiol than nondrinkers, and that when the variability of estradiola in premenopause is considered, it is possible to identify a relationship between alcohol intake and estradio.

TL;DR: Stability over time, estradiol, prolactin, and total testosterone had fairly good performance for both serum and plasma, and the reliability of the individual categorization by hormonal level suggests the validity of low temperature storage for epidemiological purposes, at least for hormonal parameters.

TL;DR: The data indicate that total estradiol measured during the luteal phase has a poor intraindividual reproducibility over time, and these findings may have important implications in studies of hormones in the etiology of chronic disease.

TL;DR: A procedure for simultaneously measuring steroid hormones using a unified solid phase extraction which allows the measurement of both unconjugated and conjugated steroids from 1 ml of sample and a combination of HPLC with isocratic elution followed by RIA is described.