@phdthesis{Scheuermeyer2018, author = {Scheuermeyer, Philipp}, title = {Macroeconomic Consequences of Income Inequality: Evidence from Panel Data Econometrics}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-161452}, school = {Universit{\"a}t W{\"u}rzburg}, year = {2018}, abstract = {Within three self-contained chapters, this dissertation provides new insights into the macroeconomic consequences of income inequality from a global perspective. Following an introduction, which summarizes the main findings and offers a brief overview of trends in income distribution, Chapter 2 evaluates the relationship between the labor share of income and the evolution of aggregate demand. Chapter 3 analyzes the link between income inequality and aggregate saving; and Chapter 4 directly estimates the effect of inequality and public redistribution on economic growth.}, subject = {Panelanalyse}, language = {en} } @phdthesis{Gador2018, author = {Gador, Eva}, title = {Strategies to improve the biological performance of protein therapeutics}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-161798}, school = {Universit{\"a}t W{\"u}rzburg}, pages = {199}, year = {2018}, abstract = {During the last decades the number of biologics increased dramatically and several biopharmaceutical drugs such as peptides, therapeutic proteins, hormones, enzymes, vaccines, monoclonal antibodies and antibody-drug conjugates conquered the market. Moreover, administration and local delivery of growth factors has gained substantial importance in the field of tissue engineering. Despite progress that has been made over the last decades formulation and delivery of therapeutic proteins is still a challenge. Thus, we worked on formulation and delivery strategies of therapeutic proteins to improve their biological performance. Phase I of this work deals with protein stability with the main focus on a liquid protein formulation of the dimeric fusion protein PR-15, a lesion specific platelet adhesion inhibitor. In order to develop an adequate formulation ensuring the stability and bioactivity of PR-15 during storage at 4 °C, a pH screening, a forced degradation and a Design of Experiments (DoE) was performed. First the stability and bioactivity of PR-15 in 50 mM histidine buffer in relation to pH was evaluated in a short-term storage stability study at 25 °C and 40 °C for 4 and 8 weeks using different analytical methods. Additionally, potential degradation pathways of PR-15 were investigated under stressed conditions such as heat treatment, acidic or basic pH, freeze-thaw cycles, light exposure, induced oxidation and induced deamidation during the forced degradation study. Moreover, we were able to identify the main degradation product of PR-15 by performing LC/ESI-MS analysis. Further optimization of the injectable PR 15 formulation concerning pH, the choice of buffer and the addition of excipients was studied in the following DoE and finally an optimal PR-15 formulation was found. The growth factors BMP-2, IGF-I and TGF-β3 were selected for the differentiation of stem cells for tissue engineering of cartilage and bone in order to prepare multifunctionalized osteochondral implants for the regeneration of cartilage defects. Silk fibroin (SF) was chosen as biomaterial because of its biocompatibility, mechanical properties and its opportunity for biofunctionalization. Ideal geometry of SF scaffolds with optimal porosity was found in order to generate both tissues on one scaffold. The growth factors BMP-2 and IGF-I were modified to allow spatially restricted covalent immobilization on the generated porous SF scaffolds. In order to perform site-directed covalent coupling by the usage of click chemistry on two opposite sides of the scaffold, we genetically engineered BMP-2 (not shown in this work; performed by Barbara Tabisz) and IGF-I for the introduction of alkyne or azide bearing artificial amino acids. TGF β3 was immobilized to beads through common EDC/NHS chemistry requiring no modification and distributed in the pores of the entire scaffold. For this reason protein modification, protein engineering, protein immobilization and bioconjugation are investigated in phase II. Beside the synthesis the focus was on the characterization of such modified proteins and its conjugates. The field of protein engineering offers a wide range of possibilities to modify existing proteins or to design new proteins with prolonged serum half-life, increased conformational stability or improved release rates according to their clinical use. Site-directed click chemistry and non-site-directed EDC/NHS chemistry were used for bioconjugation and protein immobilization with the aim to underline the preferences of site-directed coupling. We chose three strategies for the incorporation of alkyne or azide functionality for the performance of click reaction into the protein of interest: diazonium coupling reaction, PEGylation and genetic engineering. Azido groups were successfully introduced into SF by implementation of diazonium coupling and alkyne, amino or acid functionality was incorporated into FGF-2 as model protein by means of thiol PEGylation. The proper folding of FGF-2 after PEGylation was assessed by fluorescence spectroscopy, WST-1 proliferation assay ensured moderate bioactivity and the purity of PEGylated FGF-2 samples was monitored with RP-HPLC. Moreover, the modification of native FGF-2 with 10 kDa PEG chains resulted in enhanced thermal stability. Additionally, we genetically engineered one IGF-I mutant by incorporating the unnatural amino acid propargyl-L-lysine (plk) at position 65 into the IGF-I amino acid sequence and were able to express hardly verifiable amounts of plk-IGF-I. Consequently, plk-IGF-I expression has to be further optimized in future studies in order to generate plk-IGF-I with higher yields. Bioconjugation of PEGylated FGF-2 with functionalized silk was performed in solution and was successful for click as well as EDC/NHS chemistry. However, substantial amounts of unreacted PEG-FGF-2 were adsorbed to SF and could not be removed from the reaction mixture making it impossible to expose the advantages of click chemistry in relation to EDC/NHS chemistry. The immobilization of PEG-FGF-2 to microspheres was a trial to increase product yield and to remove unreacted PEG-FGF-2 from reaction mixture. Bound PEG-FGF-2 was visualized by fluorescence imaging or flow cytometry and bioactivity was assessed by analysis of the proliferation of NIH 3T3 cells. However, immobilization on beads raised the same issue as in solution: adsorption caused by electrostatic interactions of positively charged FGF-2 and negatively charged SF or beads. Finally, we were not able to prove superiority of site-directed click chemistry over non-site-directed EDC/NHS. The skills and knowledge in protein immobilization as well as protein characterization acquired during phase II helped us in phase III to engineer cartilage tissue in biofunctionalized SF scaffolds. The approach of covalent immobilization of the required growth factors is relevant because of their short in vivo half-lives and aimed at controlling their bioavailability. So TGF-β3 was covalently coupled by means of EDC/NHS chemistry to biocompatible and biostable PMMA beads. Herein, we directly compared bioactivity of covalently coupled and adsorbed TGF-β3. During the so-called luciferase assay bioactivity of covalent coupled as well as adsorbed TGF-β3 on PMMA beads was ensured. In order to investigate the real influence of EDC/NHS chemistry on TGF-β3's bioactivity, the amount of immobilized TGF-β3 on PMMA beads was determined. Therefore, an ELISA method was established. The assessment of total amount of TGF-β3 immobilized on the PMMA beads allowed as to calculate coupling efficiency. A significantly higher coupling efficiency was determined for the coupling of TGF-β3 via EDC/NHS chemistry compared to the reaction without coupling reagents indicating a small amount of adsorbed TGF-β3. These results provide opportunity to determine the consequence of coupling by means of EDC/NHS chemistry for TGF β3 bioactivity. At first sight, no statistically significant difference between covalent immobilized and adsorbed TGF-β3 was observed regarding relative luciferase activities. But during comparison of total and active amount of TGF-β3 on PMMA beads detected by ELISA or luciferase assay, respectively, a decrease of TGF-β3's bioactivity became apparent. Nevertheless, immobilized TGF β3 was further investigated in combination with SF scaffolds in order to drive BMSCs to the chondrogenic lineage. According to the results obtained through histological and immunohistochemical studies, biochemical assays as well as qRT-PCR of gene expression from BMSCs after 21 days in culture immobilized TGF-β3 was able to engineer cartilage tissue. These findings support the thesis that local presentation of TGF β3 is superior towards exogenous TGF β3 for the development of hyaline cartilage. Furthermore, we conclude that covalent immobilized TGF β3 is not only superior towards exogenously supplemented TGF-β3 but also superior towards adsorbed TGF-β3 for articular hyaline cartilage tissue engineering. Diffusion processes were inhibited through covalent immobilization of TGF-β3 to PMMA beads and thereby a stable and consistent TGF-β3 concentration was maintained in the target area. With the knowledge acquired during phase II and III as well as during the studies of Barbara Tabisz concerning the expression and purification of plk-BMP-2 we made considerable progress towards the formation of multifunctionalized osteochondral implants for the regeneration of cartilage defects. However, further studies are required for the translation of these insights into the development of multifunctionalized osteochondral SF scaffolds.}, subject = {biologics}, language = {en} } @phdthesis{Guenther2018, author = {G{\"u}nther, Katharina}, title = {Generation of early human neuroepithelial progenitors from primary cells for biomedical applications}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-150348}, school = {Universit{\"a}t W{\"u}rzburg}, year = {2018}, abstract = {Patient-specific induced pluripotent stem cells (iPSCs) emerged as a promising cell source for disease modeling and drug screening as well as a virtually unlimited source for restorative therapy. The thesis deals with three major topics to help realizing biomedical applications with neural stem cells. To enable the generation of transgene-free iPSCs, alternatives to retroviral reprogramming were developed. Hence, the adaptation and evaluation of reprogramming using excisable lentiviral constructs, Sendai virus (SeV) and synthetic mRNA-based methods was assessed in the first part of this thesis. hiPSCs exhibit the pluripotency markers OCT4, SSEA-4, TRA1-60 which were confirmed by immunofluorescence and flow cytometry. Besides, the potential to differentiate in cell types of all three germ layers was detected, confirming pluripotent identity of proliferating colonies resulting from various reprogramming strategies. However, major differences such as high efficiency with SeV in contrast to a relatively low efficiency with mRNA in regard to passage number and the phenotype of starting fibroblasts were observed. Furthermore, a prolonged clone- and passage-dependent residual presence of viral RNA genes was identified in SeV-iPSCs for up to 23 passages using RT-PCR underlining the importance of careful monitoring of clone selection. In contrast, viral-free reprogramming by synthetic mRNA represents a fully non-integrative approach but requires further refinement to be efficiently applicable to all fibroblasts. The second part of this thesis deals with the establishment of a rapid monolayer approach to differentiate neural progenitor cells from iPSCs. To achieve this, a two-step protocol was developed allowing first the formation of a stable, primitive NPC line within 7 days which was expanded for 2-3 passages. In a second step, a subsequent adaptation to conditions yielding neural rosette-like NPCs followed. Both neural lines were demonstrated to be expandable, cryopreservable and negative for the pluripotency marker OCT4. Furthermore, a neural precursor identity including SOX1, SOX2, PAX6, Nestin was confirmed by immunofluorescence and quantitative RT-PCR. Moreover, the differentiation resulted in TUJ1-positive neurons and GFAP-positive astrocytes. Nonetheless, the outcome of glial differentiation from primitive NSCs remained low, whereas FGF/EGF-NPCs were efficiently differentiated into GFAP-positive astrocytes which were implicated in a cellular model of the blood brain barrier. The third and major objective of this study was to generate human early neural progenitor cells from fetal brain tissue with a wide neural differentiation capacity. Therefore, a defined medium composition including small molecules and growth factors capable of modulation of crucial signaling pathways orchestrating early human development such as SHH and FGF was assessed. Indeed, specific culture conditions containing TGFβ inhibitor SB431542, SHH agonist Purmorphamine, GSK3β inhibitor CHIR99021 and basic FGF, but no EGF enabled robust formation of early neuroepithelial progenitor (eNEP) colonies displaying a homogeneous morphology and a high proliferation rate. Moreover, primary eNEPs exhibit a relatively high clonogenicity of more than 23 \% and can be monoclonally expanded for more than 45 passages carrying a normal karyotype. Characterization by immunofluorescence, flow cytometry and quantitative RT-PCR revealed a distinct NPC profile including SOX1, PAX6, Nestin and SOX2 and Prominin. Furthermore, primary eNEPs show NOTCH and HES5 activation in combination with non-polarized morphology, indicative of an early neuroepithelial identity. Microarray analysis unraveled SOX11, BRN2 and other HES-genes as characteristic upregulated genes. Interestingly, eNEPs were detected to display ventral midbrain/hindbrain regional identity. The validation of yielded cell types upon differentiation indicates a strong neurogenic potential with more than 90 \% of TUJ1-positive neurons. Moreover, astrocytes marked by GFAP and putative myelin structures indicating oligodendrocytes were identified. Electrophysiological recordings revealed functionally active neurons and immunofluorescence indicate GABAergic, glutamatergic, dopaminergic and serotonergic subtypes. Additionally, putative physiological synapse formation was observed by the presence of Synapsin and PSD-95 as well as by ultrastructural examination. Notably, rare neurons stained positive for the peripheral neuronal marker Peripherin suggesting the potential of eNEPS to give rise to cells of neural tube and neural crest origin. By the application of specific differentiation protocols an increase of TH-positive neurons or neural crest-derivatives such as putative A- and C-sensory neurons and mesenchymal cells was identified. Taken together, primary eNEPs might help to elucidate mechanisms of early human neurodevelopment and will serve as a novel source for cell replacement and further biomedical applications.}, subject = {progenitors}, language = {en} } @phdthesis{Schwenk2018, author = {Schwenk, Nicola}, title = {Seeing the Light: Synthesis of Luminescent Rhodacyclopentadienes and Investigations of their Optical Properties and Catalytic Activity}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-149550}, school = {Universit{\"a}t W{\"u}rzburg}, year = {2018}, abstract = {Luminescent organotransition metal complexes are of much current interest. As the large spin-orbit coupling of 2nd and 3rd row transition metals usually leads to rapid intersystem crossing from S1 to T1, which enables phosphorescence, there is a special interest in using triplet-emitting materials in organic or organometallic light emitting diodes (OLEDs). Marder et al. have found that, reductive coupling of both para-R-substituted diarylbutadiynes and diaryldodecatetraynes on Rh(PMe3)4X leads to quantitative yields of bis(arylethynyl)-rhodacyclopentadienes with complete regiospecificity (R = BMes2, H, Me, OMe, SMe, CF3, CN, CO2Me, NMe2, NO2, C≡C-TMS and X = -C≡C-TMS, -C≡C-C6H4-4-NMe2, -C≡C-C≡C-C6H4-4-NPh2, Me, Cl).47,49 Unexpectedly, these compounds show intense fluorescence rather than phosphorescence (ɸf = 0.33-0.69, t = 1.2 3.0 ns). The substituent R has a significant influence on the photophysical properties, as absorption and emission are both bathochromically shifted compared to R = H, especially for R = π-acceptor. To clarify the mechanism of the formation of the rhodacyclopentadienes, and to investigate further their unique photophysical properties, a series of novel, luminescent rhodacyclopentadienes with dithiocarbamate as a bidentate ligand at the rhodium centre has been synthesised and characterised (R = NO2, CO2Me, Me, NMe2, SMe, Ar = C6F4-4-OMe). The rhodacyclopentadienes have been formed via reductive coupling of diaryl undecatetraynes with [Rh(k2-S,S`-S2CNEt2)(PMe3)2]. The structures of a series of such compounds were solved by single crystal X-ray diffraction and are discussed in this work. The compounds were fully characterised via NMR, UV/Vis and photoluminescence spectroscopy as well as by elemental analysis, high-resolution mass spectrometry (HRMS) and X-ray diffraction. When heating the reactions, another isomer is formed to a certain extent. The so-called dibenzorhodacyclopentadienes already appeared during earlier studies of Marder et al., when acetylacetonate (acac) was employed as the bidentate ligand at the Rh-centre. They are probably formed via a [4+2] cycloaddition reaction and C-H activation, followed by a β-H shift. Use of the perfluorinated phenyl moiety Ar = C6F4-4-OMe provided a total new insight into the mechanism of formation of the rhodacyclopentadiene isomers and other reactions. Besides the formation of the expected rhodacyclopentadiene, a bimetallic compound was generated, isolated and characterised via X-ray crystallography and NMR spectroscopy, elemental analysis and high resolution mass spectrometry. For further comparison, analogous reactions with [Rh(k2 S,S` S2CNEt2)(PPh3)2] and a variety of diaryl undecatetraynes (R = NO2 CO2Me, Me, NMe2, SMe, Ar = C6F4-4-OMe) were carried out. They also yield the expected rhodacyclopentadienes, but quickly react with a second or even third equivalent of the tetraynes to form, catalytically, alkyne cyclotrimerisation products, namely substituted benzene derivatives (dimers and trimers), which are highly luminescent. The rhodacyclopentadienes (R = NO2, CO2Me, Me, SMe, Ar = C6F4-4-OMe) are stable and were isolated. The structures of a series of these compounds were obtained via single crystal X-ray crystallography and the compounds were fully characterised via NMR, UV/Vis and photoluminescence spectroscopy as well as by elemental analysis and HRMS. Another attempt to clarify the mechanism of formation of the rhodacyclopentadienes involved reacting a variety of diaryl 1,3-butadiynes (R = CO2Me, Me, NMe2, naphthyl) with [Rh(k2 S,S` S2CNEt2)(PMe3)2]. The reactions stop at an intermediate step, yielding a 1:1 trans π-complex, confirmed by single crystal X-ray diffraction and NMR spectroscopy. Only after several weeks, or under forcing conditions (µw / 80 °C, 75 h), the formation of another major product occurs, having bound a second diaryl 1,3-butadiyne. Based on earlier results of Murata, the product is identified as an unusual [3+2] cycloaddition product, ϭ-bound to the rhodium centre.}, subject = {Rhodium}, language = {en} } @phdthesis{Schuecker2018, author = {Sch{\"u}cker, Katharina}, title = {The molecular architecture of the meiotic chromosome axis as revealed by super-resolution microscopy}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-144199}, school = {Universit{\"a}t W{\"u}rzburg}, year = {2018}, abstract = {During meiosis proteins of the chromosome axis are important for monitoring chromatin structure and condensation, for pairing and segregation of chromosomes, as well as for accurate recombination. They include HORMA-domain proteins, proteins of the DNA repair system, synaptonemal complex (SC) proteins, condensins and cohesins. To understand more about their function in shaping the meiotic chromosome it is crucial to establish a defined model of their molecular architecture. Up to now their molecular organization was analysed using conventional methods, like confocal scanning microscopy (CLSM) and transmission electron microscopy (TEM). Unfortunately, these techniques are limited either by their resolution power or their localization accuracy. In conclusion, a lot of data on the molecular organization of chromosome axis proteins stays elusive. For this thesis the molecular structure of the murine synaptonemal complex (SC) and the localization of its proteins as well as of three cohesins was analysed with isotropic resolution, providing new insights into their architecture and topography on a nanoscale level. This was done using immunofluorescence labelling in combination with super-resolution microscopy, line profiles and average position determination. The results show that the murine SC has a width of 221.6 nm ± 6.1 nm including a central region (CR) of 148.2 nm ± 2.6 nm. In the CR a multi-layered organization of the central element (CE) proteins was verified by measuring their strand diameters and strand distances and additionally by imaging potential anchoring sites of SYCP1 (synaptonemal complex protein 1) to the lateral elements (LEs). We were able to show that the two LEs proteins SYCP2 and SYCP3 do co-localize alongside their axis and that there is no significant preferential localization towards the inner LE axis of SYCP2. The presented results also predict an orderly organization of murine cohesin complexes (CCs) alongside the chromosome axis in germ cells and support the hypothesis that cohesins in the CR of the SC function independent of CCs. In the end new information on the molecular organization of two main components of the murine chromosome axis were retrieved with nanometer precision and previously unknown details of their molecular architecture and topography were unravelled.}, subject = {Meiose}, language = {en} } @phdthesis{Coban2018, author = {Coban, Mustafa}, title = {Contributions to the Empirics of Immigration, Redistribution and Social Mobility}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-148934}, school = {Universit{\"a}t W{\"u}rzburg}, year = {2018}, abstract = {In recent decades the international migration has increased worldwide. The influx of people from different cultures and ethnic groups poses new challenges to the labor market and the welfare state of the host countries and causes changes in the social fabric. In general, immigration benefits the economy of the host country. However, these gains from immigration are unevenly distributed among the native population. Natives who are in direct competition with the new workers expect wage losses and a higher probability of getting unemployed, whereas remaining natives foresee either no feedback effects or even wage gains. On the other hand, the tax and transfer system benefits disproportionally from an influx of highly skilled immigrants. Examinations of 20 European countries in 2010 show that a higher proportion of low-skilled immigrants in the immediate neighborhood of the natives increases the difference in the demand for redistribution between high-skilled and low-skilled natives. Thus, high-skilled natives are more opposed to an expansion of the governmental redistribution. On the one hand, a higher proportion of low-skilled immigrants generates a higher fiscal burden on the welfare state. On the other hand, high-skilled natives' wages increase due to an influx of low-skilled immigrants, since relative supply of high-skilled labor increases. In addition to the economic impact of immigration, the inflow of new citizens is accompanied by natives' fear of changes in the social environment as well as in symbolic values, such as cultural identity or natives' set of values. The latter might generate negative attitudes towards immigrants and increase the demand for a more restrictive immigration policy. On the other hand, more interethnic contact due to a higher ethnic diversity could reduce natives' information gaps, prejudices and stereotypes. This, in turn, could enhance more tolerance and solidarity towards immigrants among natives. Examinations of 18 European countries in 2014 show that more interethnic contact during everyday life reduces both the natives' social distance from immigrants and their fear of social upheaval by the presence of immigrants. However, natives' social distance from immigrants has no effect on their preference for redistribution, but their perceived threat to the national culture and social life by the presence of immigrants has a significantly negative impact on their demand for redistribution. Thus, natives' concern about the preservation of symbolic norms and values affects the solidarity channel of their redistribution preference. An individual's upward mobility over time or in relation to his or her parents determines his or her attitude towards the welfare state as well as the transfer of his or her opinions to his or her own children. With regard to intergenerational income mobility, Germany shows a value in the international midfield; higher than the United States (lower mobility) and lower than the Scandinavian countries (higher mobility). For example, if a father's lifetime income increases by 10 percent, his son's lifetime income increases by 4.9 percent in the United States and by 3.1 percent in Germany. Additionally, in Germany, fathers' lifetime income tends to show a higher impact on their sons' income if their incomes are higher. In the United States, fathers' lifetime incomes have a stronger influence on their sons' income at the lower and the upper end of the income distribution compared to the middle. Taking a closer look at the intragenerational wage mobility and wage inequality in Germany, the development at the current edge is rather sobering. Since 2000 there is a steady decline in wage mobility. Furthermore, wage mobility in the services sector has been significantly lower than in the manufacturing sector since the beginning of the 2000s. This result is mainly driven by the decrease of wage mobility in the health care and social services sector. Moreover, a worker's unemployment spells and occupation have become more important in the meantime. Since 2006 the increase in the German wage inequality has markedly slowed down and wage growth between 2006 and 2013 has been even polarized, i.e. wages at the lower and at the upper end of the wage distribution have increased more than wages in the middle. However, this development can be partly attributed to the computerization and automation of the production processes. Although, there was substitution of manual routine tasks between 2001 and 2013, cognitive routine tasks are still more pronounced in the middle and at the upper end of the wage distribution. Furthermore, the latter experienced an increase in wage mobility since 2000. On the other hand, manual non-routine tasks are localized disproportionally in the middle and at the lower end of the wage distribution. Thus, the wage gains of these occupations at the lower end were compensated for by the wage losses in the middle.}, subject = {Einwanderung}, language = {en} } @article{SemrauHentschkeBuchmannetal.2015, author = {Semrau, Jana and Hentschke, Christian and Buchmann, Jana and Meng, Karin and Vogel, Heiner and Faller, Hermann and Bork, Hartmut and Pfeifer, Klaus}, title = {Long-term effects of interprofessional biopsychosocial rehabilitation for adults with chronic non-specific low back pain: a multicentre, quasi-experimental study}, series = {PLoS ONE}, volume = {10}, journal = {PLoS ONE}, number = {3}, doi = {10.1371/ journal.pone.0118609}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-143594}, pages = {e0118609}, year = {2015}, abstract = {Background Improvement of the long-term effectiveness of multidisciplinary ortho-paedic rehabilitation (MOR) in the management of chronic non-specific low back pain (CLBP) remains a central issue for health care in Germany. We developed an interprofessional and interdisciplinary, biopsychosocial rehabilitation concept named "PASTOR" to promote self-management in adults with CLBP and compared its effectiveness with the current model of MOR. Methods A multicentre quasi-experimental study with three measurement time points was implemented. 680 adults aged 18 to 65 with CLBP were assed for eligibil-ity in three inpatient rehabilitation centres in Germany. At first the effects of the MOR, with a total extent of 48 hours (control group), were assessed. Thereafter, PASTOR was implemented and evaluated in the same centres (intervention group). It consisted of six interprofessional modules, which were provided on 12 days in fixed groups, with a total extent of 48 hours. Participants were assessed with self-report measures at baseline, discharge, and 12 months for functional ability (primary outcome) using the Hannover Functional Ability Questionnaire (FFbH-R) and vari-ous secondary outcomes (e.g. pain, health status, physical activity, pain coping, pain-related cognitions). Results In total 536 participants were consecutively assigned to PASTOR (n=266) or MOR (n=270). At 12 months, complete data of 368 participants was available. The adjusted between-roup difference in the FFbH-R at 12 months was 6.58 (95\% CI 3.38 to 9.78) using complete data and 3.56 (95\% CI 0.45 to 6.67) using available da-ta, corresponding to significant small-to-medium effect sizes of d=0.42 (p<0.001) and d=0.10 (p=0.025) in favour of PASTOR. Further improvements in secondary out-comes were also observed in favour of PASTOR. Conclusion The interprofessional and interdisciplinary, biopsychosocial rehabilita-tion program PASTOR shows some improvements of the long-term effectiveness of inpatient rehabilitation in the management of adults with CLBP. Further insights into mechanisms of action of complex intervention programs are required.}, language = {en} } @article{DegenHovestadtMitesseretal.2015, author = {Degen, Tobias and Hovestadt, Thomas and Mitesser, Oliver and H{\"o}lker, Franz}, title = {High female survival promotes evolution of protogyny and xexual conflict}, series = {PLoS ONE}, volume = {10}, journal = {PLoS ONE}, number = {3}, doi = {10.1371/journal.pone.0118354}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-143586}, pages = {e0118354}, year = {2015}, abstract = {Existing models explaining the evolution of sexual dimorphism in the timing of emergence (SDT) in Lepidoptera assume equal mortality rates for males and females. The limiting assumption of equal mortality rates has the consequence that these models are only able to explain the evolution of emergence of males before females, i.e. protandry-the more common temporal sequence of emergence in Lepidoptera. The models fail, however, in providing adaptive explanations for the evolution of protogyny, where females emerge before males, but protogyny is not rare in insects. The assumption of equal mortality rates seems too restrictive for many insects, such as butterflies. To investigate the influence of unequal mortality rates on the evolution of SDT, we present a generalised version of a previously published model where we relax this assumption. We find that longer life-expectancy of females compared to males can indeed favour the evolution of protogyny as a fitness enhancing strategy. Moreover, the encounter rate between females and males and the sex-ratio are two important factors that also influence the evolution of optimal SDT. If considered independently for females and males the predicted strategies can be shown to be evolutionarily stable (ESS). Under the assumption of equal mortality rates the difference between the females' and males' ESS remains typically very small. However, female and male ESS may be quite dissimilar if mortality rates are different. This creates the potential for an 'evolutionary conflict' between females and males. Bagworm moths (Lepidoptera: Psychidae) provide an exemplary case where life-history attributes are such that protogyny should indeed be the optimal emergence strategy from the males' and females' perspectives: (i) Female longevity is considerably larger than that of males, (ii) encounter rates between females and males are presumably low, and (iii) females mate only once. Protogyny is indeed the general mating strategy found in the bagworm family.}, language = {en} } @article{TsaiGrimmChaoetal.2015, author = {Tsai, Yu-Chen and Grimm, Stefan and Chao, Ju-Lan and Wang, Shih-Chin and Hofmeyer, Kerstin and Shen, Jie and Eichinger, Fred and Michalopoulou, Theoni and Yao, Chi-Kuang and Chang, Chih-Hsuan and Lin, Shih-Han and Sun, Y. Henry and Pflugfelder, Gert O.}, title = {Optomotor-blind negatively regulates Drosophila eye development by blocking Jak/STAT signaling}, series = {PLoS ONE}, volume = {10}, journal = {PLoS ONE}, number = {3}, doi = {10.1371/journal.pone.0120236}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-143577}, pages = {e0120236}, year = {2015}, abstract = {Organ formation requires a delicate balance of positive and negative regulators. In Drosophila eye development, wingless (wg) is expressed at the lateral margins of the eye disc and serves to block retinal development. The T-box gene optomotor-blind (omb) is expressed in a similar pattern and is regulated by Wg. Omb mediates part of Wg activity in blocking eye development. Omb exerts its function primarily by blocking cell proliferation. These effects occur predominantly in the ventral margin. Our results suggest that the primary effect of Omb is the blocking of Jak/STAT signaling by repressing transcription of upd which encodes the Jak receptor ligand Unpaired.}, language = {en} } @article{MatosMachadoSchartletal.2015, author = {Matos, I and Machado, M. P. and Schartl, M. and Coelho, M. M.}, title = {Gene expression dosage regulation in an allopolyploid fish}, series = {PLoS ONE}, volume = {10}, journal = {PLoS ONE}, number = {3}, doi = {10.1371/journal.pone.0116309}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-143565}, pages = {e0116309}, year = {2015}, abstract = {How allopolyploids are able not only to cope but profit from their condition is a question that remains elusive, but is of great importance within the context of successful allopolyploid evolution. One outstanding example of successful allopolyploidy is the endemic Iberian cyprinid Squalius alburnoides. Previously, based on the evaluation of a few genes, it was reported that the transcription levels between diploid and triploid S. alburnoides were similar. If this phenomenon occurs on a full genomic scale, a wide functional "diploidization'' could be related to the success of these polyploids. We generated RNA-seq data from whole juvenile fish and from adult livers, to perform the first comparative quantitative transcriptomic analysis between diploid and triploid individuals of a vertebrate allopolyploid. Together with an assay to estimate relative expression per cell, it was possible to infer the relative sizes of transcriptomes. This showed that diploid and triploid S. alburnoides hybrids have similar liver transcriptome sizes. This in turn made it valid to directly compare the S. alburnoides RNA-seq transcript data sets and obtain a profile of dosage responses across the S. alburnoides transcriptome. We found that 64\% of transcripts in juveniles' samples and 44\% in liver samples differed less than twofold between diploid and triploid hybrids (similar expression). Yet, respectively 29\% and 15\% of transcripts presented accurate dosage compensation (PAA/PA expression ratio of 1 instead of 1.5). Therefore, an exact functional diploidization of the triploid genome does not occur, but a significant down regulation of gene expression in triploids was observed. However, for those genes with similar expression levels between diploids and triploids, expression is not globally strictly proportional to gene dosage nor is it set to a perfect diploid level. This quantitative expression flexibility may be a strong contributor to overcome the genomic shock, and be an immediate evolutionary advantage of allopolyploids.}, language = {en} }