The effects of two monophasic oral contraceptives containing 30 mcg of ethinyl estradiol and either 2 mg of chlormadinone acetate or 0.15 mg of desogestrel on lipid, hormone and metabolic parameters.

Background: This study was conducted to compare the effects of two monophasic oral contraceptives (OCs) containing ethinyl estradiol (EE) 30 mcg+either chlormadinone acetate (CMA) 2 mg (Belara) or 0.15 mg desogestrel (Marvelon) on lipid, hormone and other relevant metabolic parameters.

Study Design: Markers of lipid and carbohydrate metabolism, and reproductive hormone levels, were measured in 45 subjects randomly assigned to 6 months of treatment with one of the two OCs.

Autoantibodies to prothrombin and phosphatidylserine/prothrombin-complexes: do they contribute to the serodiagnosis of primary and secondary anti-phospholipid syndrome?

The diagnostic and clinical relevance of Ab to pure and phosphatidylserine-complexed prothrombin for primary and secondary APS was investigated in a total of 357 patients with (n = 169) and without (n = 188) connective tissue diseases. The overall frequency of anti-prothrombin Ab in sAPS, pAPS and patients without APS-related symptoms were found to be 50.0, 37.

Reactivity profiles of autoantibodies to different phospholipids and the phospholipid-binding protein beta2-glycoprotein I in patients with clinical symptoms related to thromboembolic and/or vasculopathic events with or without connective tissue diseases.

To study the antigenic and epitope specificities of anti-phospholipid Ab in detail, we investigated 177 patients without (62 with APS-related systemic clinical symptoms, 115 with microangiopathies) and 164 patients with connective tissue diseases (CTD). Ab associated with primary APS (pAPS) seem to show a restricted specificity (phospholipid/beta2-GPI-complexes), whereas those in secondary APS (sAPS) react additionaly with pure beta2-GPI. Simultaneously, beta2-GPI-independent Ab were also frequently present in both conditions (50% of all Ab-positive sera).

Is the Zona pellucida thickness of metaphase-II oocytes in an IVF/ICSI program influenced by the patient's age?

Zona pellucida (Z.p.) thickness is believed to be considerably influenced by hormonal stimulation.

Chimerism in a fertile woman with 46,XY karyotype and female phenotype.

We report on the unexpected finding of a 46,XY karyotype in a 30 year-old woman with normal ovarian function and a former pregnancy at 17 years of age. Chromosome analysis was performed prior to intracyoplasmic sperm injection (ICSI), due to infertility of her husband. Repeated chromosome analysis in lymphocytes of the female resulted in a normal male karyotype.