BACKGROUND Declining circulating estrogen levels around the time of the menopause can induce unacceptable symptoms that affect the health and well being of women. Hormone therapy (both unopposed estrogen and estrogen/progestogen combinations) is an effective treatment for these symptoms, but is associated with risk of harms. Guidelines recommend that hormone therapy be given at the lowest effec...

BACKGROUND Oestrogen and progestogen have the potential to influence gastro-intestinal motility; both are key components of hormone replacement therapy (HRT). Results of observational studies in women taking HRT rely on self-reporting of gastro-oesophageal symptoms and the aetiology of gastro-oesophageal reflux disease (GORD) remains unclear. This study investigated the association between HRT ...

Breed and seasonal effects on LH release, ovarian steroid secretion, and ovulation were evaluated in mature Finnish Landrace (Finn) and Hampshire ewes that received either a progestogen-PMSG treatment in May, July and November (experiment 1) or estradiol-17beta (50 microg) in May and July (experiment 2). The progestogen-PMSG treatment increased plasma estradiol within 12 hr after the PMSG injec...

Cardiovascular disease is a major killer in postmenopausal women in the industrialized societies. To investigate the effect of progestogen and 17 beta-estradiol replacement therapy on atherogenesis, we studied 60 cholesterol-fed ovariectomized rabbits for 13 weeks. They were randomly assigned to four groups of 15 rabbits each and received oral treatment with norethisterone acetate, levonorgestr...

AIM To determine antiandrogen effects on muscle strength gain and fat-free mass increase during exercise in women using hormonal contraception with antiandrogen content. METHODS The study included 50 women (age range, 18-30 years; mean-/+SD, 26-/+3) using hormonal contraception for at least 12 months before the beginning of the study. They were divided into two groups: "antiandrogen" group (n...

Combined oral contraceptives In the UK combined oral contraceptives (COCs), containing both oestrogen and progestogen, are the most popular method of contraception for women under age 30. The most common oestrogen used is ethinyl estradiol (EE), in doses between 20 and 35μg. Progestogens are classified according to their steroid structure and the timing of their introduction on to the market. T...

The effects of estrogen and progestogen treatment on the response of the thoracic aortic wall of male rats to hypertension were studied. Hypertension levels induced by cupping the renal artery were similar in untreated (H), estrogen-treated (E), and progestogen-treated (P) hypertensive groups. Hypertension of 8 weeks' duration caused increased wall thickness, increased calculated tangential ten...

This is believed to be the first reported case of an ectopic pregnancy following failed progestogen-only emergency contraception. The ectopic pregnancy was at the site of a previous caesarean section scar and was managed conservatively.

BACKGROUND Preterm birth is the most common cause of death and harm to newborn babies. Babies that are born early may have difficulties at birth and experience health problems during early childhood. Despite extensive study, there is still uncertainty about the effectiveness of progestogen (medications that are similar to the natural hormone progesterone) in preventing or delaying preterm birth...