40 research outputs found

    Das Entwicklungsprogramm für Unterricht und Lernqualität. Lehrerfortbildung als theoriegeleitete Intervention und Ausbildung adaptiver Routinen

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    Das Entwicklungsprogramm für Unterricht und Lernqualität (E.U.LE.) ist als berufsbegleitende dreijährige Fortbildung für Lehrpersonen aller Fachrichtungen und Schularten im Jahr 2004 in Thüringen/Deutschland eingerichtet worden. Das Programm soll Unterrichtsentwicklung schulnah anregen und Lehrpersonen dabei unterstützen, ihre Interaktionsroutinen und ihre methodisch-didaktische Choreografie auf das Verstehen der Lernenden auszurichten. Wesentlich dafür ist die Fähigkeit zu einem professionell kontrollierten Perspek­tiven­wechsel, einem «Verstehen zweiter Ordnung», das neben dem eigenen Verstehen der Lehrpersonen das Verstehen der Lernenden einschliesst. Das Programm, in dem bisher über 100 Lehrpersonen ausgebildet worden sind, wird formativ und summativ evaluiert. Die Ergebnisse der Evaluation zeigen, dass die beteiligten Lehrerinnen und Lehrer ihren Unterricht stärker als zuvor auf Verstehensprozesse ausrichten. Seit 2008 wird der Programmtransfer auch über Thüringen hinaus verstärkt.The development programme for teaching and learning (E.U.L.E.) was established in 2004 as a three-year long professional training for in service-teachers of all disciplines and school-types in Thüringen /Germany. The programme aims to further the development of teaching methods which encourage school-teachers to adjust their interaction routines and their choreography of instruction methods according to the understanding of their learners. This means quintessentially the ability to develop a professionally controlled change of perspective, an «understanding of second order», which in addition to one’s own understanding incorporates the understanding of the learners. The programme, which so far has trained over 100 teachers, is evaluated both formatively and summatively. The evaluation results show that the participating teachers are continually modifying their teaching methods according to the processes of understanding. Since 2008, the programme has been offered to other areas around Thüringen

    Serum antimüllerian hormone levels best reflect the reproductive decline with age in normal women with proven fertility: A longitudinal study

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    Objective: The aim of this study was to assess which of the basal ovarian reserve markers provides the best reflection of the changes occurring in ovarian function over time (i.e., reproductive aging). Design: Prospective longitudinal study. Setting: Healthy volunteers in an academic research center. Patient(s): Eighty-one women with normal reproductive performance during the course of their lives were longitudinally assessed. In this select group of women, becoming chronologically older was considered as a proxy variable for becoming older from a reproductive point of view. Intervention(s): The women were assessed twice, with on average a 4-year interval (T 1 and T 2). The number of antral follicles on ultrasound (AFC) and blood levels of antimüllerian hormone (AMH), FSH, inhibin B, and E 2 were assessed. Main Outcome Measure(s): Longitudinal changes of the markers mentioned and the consistency of these parameters over time. Result(s): The mean ages at T 1 and T 2 were 39.6 and 43.6 years, respectively. Although AFC was strongly associated with age in a cross-sectional fashion, it did not change over time. The AMH, FSH, and inhibin B levels showed a significant change over time, in contrast to E 2 levels. The AMH and AFC were highly correlated with age both at T 1 and T 2, whereas FSH and inhibin B predominantly changed in women more than 40 years of age. To assess the consistency of these parameters over time, we investigated whether a woman's individual level above or below the mean of her age group at T 1 remained above or below the mean of her age group at T 2. Serum AMH concentrations showed the best consistency, with AFC as second best. The FSH and inhibin B showed only modest consistency, whereas E 2 showed no consistency at all. Conclusion(s): These results indicate that serum AMH represents the best endocrine marker to assess the age-related decline of reproductive capacity

    Cidofovir for BK Virus-Associated Hemorrhagic Cystitis: A Retrospective Study

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    Background.BK virus-associated hemorrhagic cystitis (BKV-HC) is a severe complication after allogeneic hematopoietic stem cell transplantation (HSCT), but antiviral treatment for this condition has not been evaluated. Methods.We conducted a retrospective survey on the safety and outcome of cidofovir treatment for patients with BKV-HC in centers affiliated with the European Group for Blood and Marrow Transplantation. Results.From 1 April 2004 to 31 December 2007, 62 patients received a diagnosis of BKV-HC after a median interval of 35 days after HSCT (range, 3-577 days). Fifty-seven patients (92%) received intravenous cidofovir, whereas 5 patients received cidofovir intravesically. Complete response (CR) was recorded in 38 (67%) of 57 patients with HC treated with intravenous cidofovir, whereas partial response (PR) was documented in 7 patients (12%). CR was documented in 3 patients and PR in 1 patient with HC treated with intravesical cidofovir. A reduction of 1-3 logs in BKV load was documented in 8 of the 10 patients achieving CR. Mild-to-moderate toxic effects were recorded in 18 of 57 patients who received intravenous cidofovir administration. In a multivariate analysis, the factors significantly associated with response to cidofovir were the stem cell source (P=.01) and the use of total body irradiation (P=.03). After a median follow-up of 287 days, overall survival and total treatment-related mortality rates were 63% and 40% for patients achieving CR, compared with 14% and 72% for patients with PR or no response to cidofovir, respectively (P<.001 and P=.001, respectively). Conclusions.Cidofovir may be a potentially effective therapy for BKV-HC, but evidence supporting its use requires randomized controlled trial

    Genetic polymorphisms of the glucocorticoid receptor may affect the phenotype of women with anovulatory polycystic ovary syndrome

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    BACKGROUND: Polycystic ovary syndrome (PCOS) is characterized by ovarian dysfunction. The association with obesity and insulin resistance is well established. Steroid hormones play a central role in the regulation of both ovarian function and body composition. This study aims to assess the influence of known functional polymorphisms in genes that are responsible for the production, metabolism and signal transduction of steroid hormones on the susceptibility to and phenotype of PCOS. METHODS: We included 518 Caucasian women with anovulatory PCOS (2003 Rotterdam criteria) and 2996 population-based controls. Functional polymorphic variants were selected in genes that affect the production of estradiol and cortisol [aromatase (CYP19), 11-beta-hydroxysteroid dehydrogenase type I (HSD11B1) and hexose-6-phosphate dehydogenase (H6PD)] and in genes for signal transduction proteins [estrogen receptor (ESR1 and ESR2) and glucocorticoid receptor (GCR)]. RESULTS: Genotype-frequencies were similar in PCOS cases and population-based controls. We observed possible associations between GCR genotype and LH levels that suggest an inhibitory influence of GCR, i.e., lower LH levels in association with GCR alleles that are known to increase receptor sensitivity (rs6195 and rs41423247) and higher LH levels in GCR variants that may inhibit receptor sensitivity (rs6190 and rs6198). CONCLUSIONS: The present study did not identify risk alleles for PCOS, although the study was limited by an absence of endocrine data for the population-based controls. However, GCR variants may influence gonadotrophin levels in women with anovulatory PCOS. We hypothesize that glucocorticoids can affect the function of the hypothalomo-pituitary-gonadal axis in humans

    Genetic polymorphisms of GnRH and gonadotrophic hormone receptors affect the phenotype of polycystic ovary syndrome

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    Polycystic ovary syndrome (PCOS) is a complex genetic disorder. Multiple functional polymorphisms have been identified in genes that regulate the hypothalamic-pituitary-gonadal (HPG) axis that regulates ovarian function. The present study aims to examine the influence of genetic variants of the HPG-axis on the severity of clinical features of PCOS and disease susceptibility. We included 518 Caucasian PCOS women and 2996 unselected controls from the general population (the Rotterdam study). Genotype distributions were compared between patients and controls. Subsequently, associations with clinical features of PCOS were studied. Single nucleotide polymorphisms were selected in GnRH (Trp16Ser [rs6185]), the FSH-receptor (FSHR, Ala307Thr [rs6165] and Asn680Ser [rs6166]) and the LH-receptor (18insLQ, Asn291Ser [rs12470652] and Ser312Asn [rs2293275]). FSHR Ser(680) was associated with higher levels of gonadotrophic hormones (FSH: P < 0.01, LH: P = 0.01), and testosterone (P = 0.05) and a higher frequency of hyperandrogenism (P = 0.04). No differences in risk for PCOS in association with the FSH-receptor variants were observed. Genetic variants of the HPG-axis were associated with a modest but significant effect on the phenotype of PCOS. FSHR variants were strongly associated with the severity of clinical features of PCOS, such as levels of gonadotrophic hormones and the presence of hyperandrogenism, but not disease risk
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