Water samples were collected in spring, summer, and winter from English rivers in urban/industrial (River Aire and River Calder, Yorkshire, UK) and rural environments (River Thames, Oxfordshire, UK) to study the biodegradation potential of the key steroid estrogen 17beta-estradiol (E2) and its synthetic derivate ethinylestradiol (EE2). Microorganisms in the river water samples were capable of t...

OBJECTIVE To investigate the pharmacokinetics of drospirenone (DRSP) and ethinylestradiol (EE) in Caucasian and Japanese women. METHOD Three open-label, non-randomised studies were performed to assess the pharmacokinetics following single doses of EE 0.02 mg/DRSP 3 mg or DRSP monotherapy (1, 3 or 6 mg) in Caucasian (Study 1) and Japanese (Study 2) women, and daily doses with EE 0.02 mg/DRSP 3...

Manganese (II) and manganese-oxidizing bacteria were used as an efficient biological system for the degradation of the xenoestrogen 17α-ethinylestradiol (EE2) at trace concentrations. Mn(2+)-derived higher oxidation states of Mn (Mn(3+), Mn(4+)) by Mn(2+)-oxidizing bacteria mediate the oxidative cleavage of the polycyclic target compound EE2. The presence of manganese (II) was found to be essen...

Hyperinsulinemic hyperandrogenism with anovulation, the so-called polycystic ovary syndrome (PCOS), is the most frequent endocrine disorder of young women. One of the stigmata of PCOS is a deficit of lean mass and an excess of fat, in particular, abdominal fat, even in the absence of obesity. Adiponectin and IL-6 are among the adipocytokines that have recently been related to abdominal fat exce...

BACKGROUND: Hepatic steatosis due to estrogen therapyincreases the activity of inflammatory markers, particularly theactivity of TNFα which in turn induces more lipogenesis.Omega-3 fatty acids are among the negative regulators of hepaticlipogenesis. OBJECTIVES: In this research, the preventive effectof omega-3 fatty acids on estrogen-induced steatosis in rats wasevaluated. METHODS:2 mg/kg. BW/S...

Clinical Question: Recently, one of our patients who was taking isotretinoin became pregnant. This occurred despite appropriate counseling, a negative pregnancy test result before commencing treatment, and use of the combined oral contraceptive pill Microgynon 30 (Schering Health Care, West Sussex, England) (levonorgestrel, 150 μg, ethinylestradiol, 30 μg). The patient did not want to terminate...