Showing papers by "London Bridge Hospital published in 1991"
TL;DR: In British women, previous oral contraceptive users had significantly lower luteal phase E2 concentrations than never users, and in Japanese subjects in the lutingal phase, a marginally higher concentration of E2 was observed in those who had undergone an early rather than a late menarche.
Abstract: In a cross-sectional study, serum estradiol (E2) and sex hormone-binding globulin (SHBG) concentrations were not significantly related to age at menarche in premenopausal British women in the luteal or follicular phases of the cycle. In Japanese subjects in the luteal phase, a marginally higher concentration of E2 was observed in those who had undergone an early rather than a late menarche. In British women, previous oral contraceptive users had significantly lower luteal phase E2 concentrations than never users.
24 citations
TL;DR: In premenopausal British women increase in body mass was significantly associated with a decreased risk of breast cancer but this association was not found for postmenopausal women or in the Japanese women.
Abstract: The epidemiological characteristics of normal women and women with early breast cancer in Great Britain were prospectively compared with similar subjects from Japan. The study consisted of 204 women with early breast cancer and 792 normal controls from Great Britain and 200 breast cancers and 335 Japanese controls. The risk factors examined were age, height and weight, menopausal status, age at menarche and menopause, parity, age at first birth, use of oral contraceptives, and family history of breast cancer. The cancers and cases were divided into pre- and postmenopausal groups. There was a striking trend for a protective effect of multiparity in both countries and a weak but inconstant protective effect of age at first birth. In premenopausal British women increase in body mass was significantly associated with a decreased risk of breast cancer but this association was not found for postmenopausal women or in the Japanese women. The results showed that the classical risk factors did not fully account for the differences in breast cancer risk between Great Britain and Japan. The possibility that aetiological factors might be changing warrants investigation.
15 citations
TL;DR: It is concluded that although the surgical stress of oocyte recovery is associated with mild transient hyperprolactinaemia, most of the hyperproLactinaemic response is due to the anaesthetic.
Abstract: Transient hyperprolactinaemia has been shown to accompany the procedure of oocyte retrieval under laparoscopic control. This study was concerned with establishing whether transvaginal oocyte retrieval was also associated with hyperprolactinaemia and whether the hyperprolactinaemic response was dependent on the method of anaesthesia/analgesia employed. Two distinct patterns were recorded. Oocyte retrieval under general anaesthesia was accompanied by a rapid rise in prolactin levels, which peaked after 40 min. Oocyte retrieval under intravenous sedation was associated with a slow rise in circulating prolactin concentrations. Significant differences in the prolactin rise between the general anaesthesia and sedation groups appeared within 10 min of the start of the procedure. It is concluded that although the surgical stress of oocyte recovery is associated with mild transient hyperprolactinaemia, most of the hyperprolactinaemic response is due to the anaesthetic.
10 citations