@article{JaiteBuehrenDahmenetal.2019, author = {Jaite, Charlotte and B{\"u}hren, Katharina and Dahmen, Brigitte and Dempfle, Astrid and Becker, Katja and Correll, Christoph U. and Egberts, Karin M. and Ehrlich, Stefan and Fleischhaker, Christian and von Gontard, Alexander and Hahn, Freia and Kolar, David and Kaess, Michael and Legenbauer, Tanja and Renner, Tobias J. and Schulze, Ulrike and Sinzig, Judith and Thomae, Ellen and Weber, Linda and Wessing, Ida and Antony, Gisela and Hebebrand, Johannes and F{\"o}cker, Manuel and Herpertz-Dahlmann, Beate}, title = {Clinical Characteristics of Inpatients with Childhood vs. Adolescent Anorexia Nervosa}, series = {Nutrients}, volume = {11}, journal = {Nutrients}, number = {11}, issn = {2072-6643}, doi = {10.3390/nu11112593}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-193160}, pages = {2593}, year = {2019}, abstract = {We aimed to compare the clinical data at first presentation to inpatient treatment of children (<14 years) vs. adolescents (≥14 years) with anorexia nervosa (AN), focusing on duration of illness before hospital admission and body mass index (BMI) at admission and discharge, proven predictors of the outcomes of adolescent AN. Clinical data at first admission and at discharge in 289 inpatients with AN (children: n = 72; adolescents: n = 217) from a German multicenter, web-based registry for consecutively enrolled patients with childhood and adolescent AN were analyzed. Inclusion criteria were a maximum age of 18 years, first inpatient treatment due to AN, and a BMI <10th BMI percentile at admission. Compared to adolescents, children with AN had a shorter duration of illness before admission (median: 6.0 months vs. 8.0 months, p = 0.004) and higher BMI percentiles at admission (median: 0.7 vs. 0.2, p = 0.004) as well as at discharge (median: 19.3 vs. 15.1, p = 0.011). Thus, in our study, children with AN exhibited clinical characteristics that have been associated with better outcomes, including higher admission and discharge BMI percentile. Future studies should examine whether these factors are actually associated with positive long-term outcomes in children.}, language = {en} } @article{JarickVolckmarPuetteretal.2014, author = {Jarick, I. and Volckmar, A. L. and P{\"u}tter, C. and Pechlivanis, S. and Nguyen, T. T. and Dauvermann, M. R. and Beck, S. and Albayrak, {\"O}. and Scherag, S. and Gilsbach, S. and Cichon, S. and Hoffmann, P. and Degenhardt, F. and N{\"o}then, M. M. and Schreiber, S. and Wichmann, H. E. and J{\"o}ckel, K. H. and Heinrich, J. and Tiesler, C. M. T. and Faraone, S. V. and Walitza, S. and Sinzig, J. and Freitag, C. and Meyer, J. and Herpertz-Dahlmann, B. and Lehmkuhl, G. and Renner, T. J. and Warnke, A. and Romanos, M. and Lesch, K. P. and Reif, A. and Schimmelmann, B. G. and Hebebrand, J. and Scherag, A. and Hinney, A.}, title = {Genome-wide analysis of rare copy number variations reveals PARK2 as a candidate gene for attention-deficit/hyperactivity disorder}, series = {Molecular Psychiatry}, volume = {19}, journal = {Molecular Psychiatry}, number = {19}, doi = {10.1038/mp.2012.161}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-121131}, pages = {115-21}, year = {2014}, abstract = {Attention-deficit/hyperactivity disorder (ADHD) is a common, highly heritable neurodevelopmental disorder. Genetic loci have not yet been identified by genome-wide association studies. Rare copy number variations (CNVs), such as chromosomal deletions or duplications, have been implicated in ADHD and other neurodevelopmental disorders. To identify rare (frequency ≤1\%) CNVs that increase the risk of ADHD, we performed a whole-genome CNV analysis based on 489 young ADHD patients and 1285 adult population-based controls and identified one significantly associated CNV region. In tests for a global burden of large (>500 kb) rare CNVs, we observed a nonsignificant (P=0.271) 1.126-fold enriched rate of subjects carrying at least one such CNV in the group of ADHD cases. Locus-specific tests of association were used to assess if there were more rare CNVs in cases compared with controls. Detected CNVs, which were significantly enriched in the ADHD group, were validated by quantitative (q)PCR. Findings were replicated in an independent sample of 386 young patients with ADHD and 781 young population-based healthy controls. We identified rare CNVs within the parkinson protein 2 gene (PARK2) with a significantly higher prevalence in ADHD patients than in controls \((P=2.8 × 10^{-4})\) after empirical correction for genome-wide testing). In total, the PARK2 locus (chr 6: 162 659 756-162 767 019) harboured three deletions and nine duplications in the ADHD patients and two deletions and two duplications in the controls. By qPCR analysis, we validated 11 of the 12 CNVs in ADHD patients \((P=1.2 × 10^{-3})\) after empirical correction for genome-wide testing). In the replication sample, CNVs at the PARK2 locus were found in four additional ADHD patients and one additional control \((P=4.3 × 10^{-2})\). Our results suggest that copy number variants at the PARK2 locus contribute to the genetic susceptibility of ADHD. Mutations and CNVs in PARK2 are known to be associated with Parkinson disease.}, language = {en} } @article{KaiserAggensteinerHoltmannetal.2021, author = {Kaiser, Anna and Aggensteiner, Pascal-M. and Holtmann, Martin and Fallgatter, Andreas and Romanos, Marcel and Abenova, Karina and Alm, Barbara and Becker, Katja and D{\"o}pfner, Manfred and Ethofer, Thomas and Freitag, Christine M. and Geissler, Julia and Hebebrand, Johannes and Huss, Michael and Jans, Thomas and Jendreizik, Lea Teresa and Ketter, Johanna and Legenbauer, Tanja and Philipsen, Alexandra and Poustka, Luise and Renner, Tobias and Retz, Wolfgang and R{\"o}sler, Michael and Thome, Johannes and Uebel-von Sandersleben, Henrik and von Wirth, Elena and Zinnow, Toivo and Hohmann, Sarah and Millenet, Sabina and Holz, Nathalie E. and Banaschewski, Tobias and Brandeis, Daniel}, title = {EEG data quality: determinants and impact in a multicenter study of children, adolescents, and adults with attention-deficit/hyperactivity disorder (ADHD)}, series = {Brain Sciences}, volume = {11}, journal = {Brain Sciences}, number = {2}, issn = {2076-3425}, doi = {10.3390/brainsci11020214}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-228788}, year = {2021}, abstract = {Electroencephalography (EEG) represents a widely established method for assessing altered and typically developing brain function. However, systematic studies on EEG data quality, its correlates, and consequences are scarce. To address this research gap, the current study focused on the percentage of artifact-free segments after standard EEG pre-processing as a data quality index. We analyzed participant-related and methodological influences, and validity by replicating landmark EEG effects. Further, effects of data quality on spectral power analyses beyond participant-related characteristics were explored. EEG data from a multicenter ADHD-cohort (age range 6 to 45 years), and a non-ADHD school-age control group were analyzed (n\(_{total}\) = 305). Resting-state data during eyes open, and eyes closed conditions, and task-related data during a cued Continuous Performance Task (CPT) were collected. After pre-processing, general linear models, and stepwise regression models were fitted to the data. We found that EEG data quality was strongly related to demographic characteristics, but not to methodological factors. We were able to replicate maturational, task, and ADHD effects reported in the EEG literature, establishing a link with EEG-landmark effects. Furthermore, we showed that poor data quality significantly increases spectral power beyond effects of maturation and symptom severity. Taken together, the current results indicate that with a careful design and systematic quality control, informative large-scale multicenter trials characterizing neurophysiological mechanisms in neurodevelopmental disorders across the lifespan are feasible. Nevertheless, results are restricted to the limitations reported. Future work will clarify predictive value.}, language = {en} } @phdthesis{Kipp2019, author = {Kipp, Ellen}, title = {Therapeutisches Drug Monitoring von Clozapin und Olanzapin bei Kindern und Jugendlichen mit Erkrankungen aus dem schizophrenen Formenkreis}, doi = {10.25972/OPUS-18269}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-182699}, school = {Universit{\"a}t W{\"u}rzburg}, year = {2019}, abstract = {Derzeit gibt es nur wenige Informationen zu konzentrationsabh{\"a}ngigen klinischen Effekten von Clozapin und Olanzapin in der Behandlung von Kindern und Jugendlichen mit schizophrenen St{\"o}rungen. Es existieren keine altersspezifisch-definierte therapeutische Zielbereiche f{\"u}r die H{\"o}he der Serumkonzentration in dieser Altersklasse. Das Ziel dieser retrospektiven, naturalistischen Studie ist die Untersuchung der Zusammenh{\"a}nge zwischen Dosis, Serumkonzentration und klinischen Effekten (Therapieeffekt und unerw{\"u}nschte Arzneimittelwirkungen) sowie die Untersuchung m{\"o}glicher Einflussfaktoren darauf. Des Weiteren sollen Erkenntnisse zu therapeutischen Konzentrationsbereichen von Clozapin und Olanzapin bei Kindern und Jugendlichen gewonnen werden. Ausgewertet wurden multizentrische Daten von 32 (Clozapin) bzw. 17 (Olanzapin) Patienten, bei denen routinem{\"a}ßig Therapeutisches Drug Monitoring im Zeitraum von Februar 2004 bis Dezember 2007 durchgef{\"u}hrt wurde. Die psychopathologische Befundeinsch{\"a}tzung erfolgte mittels der Clinical Global Impression Scale und der Brief Psychiatric Rating Scale, die der unerw{\"u}nschten Arzneimittelwirkungen mithilfe der Dose Record and Treatment Emergent Symptom Scale bzw. der Udvalg for Kliniske Unders{\o}gelser Side Effect Rating Scale. Bei beiden untersuchten Wirkstoffen zeigte sich eine signifikant positive Korrelation zwischen der (gewichtskorrigierten) Tagesdosis und der Serumkonzentration sowie eine hohe interindividuelle Variabilit{\"a}t der Serumkonzentrationen bei gleicher Dosierung. Als weiterer m{\"o}glicher Einflussfaktor auf die H{\"o}he der Serumkonzentration konnte in der Olanzapin-Stichprobe eine signifikante Assoziation zwischen dem Geschlecht und der Serumkonzentration nachgewiesen werden: M{\"a}dchen scheinen unter gleicher klinischer Dosierung h{\"o}here Serumkonzentrationen aufzubauen als Jungen. In beiden Stichproben gab es eine hohe Rate dokumentierter unerw{\"u}nschter Arzneimittelwirkungen. Ein Zusammenhang zwischen der H{\"o}he der Serumkonzentration und dem Auftreten unerw{\"u}nschter Arzneimittelwirkungen ließ sich nicht nachweisen. In der Clozapin-Stichprobe zeigte sich ein signifikanter Zusammenhang zwischen der Serumkonzentration und dem Therapieeffekt: Im untersuchten Sample war der Therapieeffekt besser bei niedrigeren (< 350 ng/ml) Serumkonzentrationen. Zudem zeigte sich eine Tendenz zu einem niedrigeren unteren Schwellenwert f{\"u}r einen empfohlenen therapeutischen Bereich der Serumkonzentration verglichen mit dem Bereich der f{\"u}r Erwachsene definiert wurde. In der Olanzapin-Stichprobe ließ sich mit dem gew{\"a}hlten Studiendesign keine signifikante Korrelation zwischen der Serumkonzentration und dem Therapieeffekt nachweisen. Die Mehrheit der p{\"a}diatrischen Patienten hatte eine Serumkonzentration innerhalb des empfohlenen Zielbereichs f{\"u}r Erwachsene. Dieses Ergebnis k{\"o}nnte auf eine {\"U}bereinstimmung des zu empfehlenden Zielbereichs der Serumkonzentration von Olanzapin in beiden Altersklassen hinweisen. Aufgrund der Limitationen des naturalistischen Studiendesigns sind weitere Studien mit kontrolliertem Design und gr{\"o}ßerer Stichprobe notwendig, um die Ergebnisse zu replizieren.}, subject = {Arzneimittel{\"u}berwachung}, language = {de} } @phdthesis{Klampfl2003, author = {Klampfl, Karin Maria}, title = {Komorbidit{\"a}t bei Kindern und Jugendlichen mit einer Zwangsst{\"o}rung}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-8139}, school = {Universit{\"a}t W{\"u}rzburg}, year = {2003}, abstract = {Thema der vorliegenden Arbeit war die Erfassung und Beschreibung der psychiatrischen Komorbidit{\"a}t bei Kindern und Jugendlichen mit einer Zwangsst{\"o}rung. An vier deutschen Universit{\"a}tskliniken f{\"u}r Kinder- und Jugendpsychiatrie wurden konsekutiv 55 Kinder und Jugendliche mit juveniler Zwangsst{\"o}rung im Hinblick auf Art und Auspr{\"a}gung ihrer Zwangssymptomatik sowie hinsichtlich komorbid vorliegender psychiatrischer St{\"o}rungen mit standardisierten Instrumenten untersucht. Die beschriebene Patientenstichprobe zeigte bez{\"u}glich klinischer und epidemiologischer Merkmale große {\"U}bereinstimmung mit den bisher epirisch gewonnenen Daten. Es konnte gezeigt werden, dass bei Kindern un Jugendlichen mit Zwangsst{\"o}rung von einer hohen Zahl komorbider psychischer St{\"o}rungen auszugehen ist, wobei Angstst{\"o}rungen, affektive St{\"o}rungen und expansive St{\"o}rungen (Hyperkinetisches Syndrom, St{\"o}rung des Sozialverhaltens)am h{\"a}ufigsten zu diagnostizieren waren, gefolgt von Essst{\"o}rungen und Tics. Die genaue Erhebung des Verteilungsmusters der komorbiden St{\"o}rungen ist nicht nur von therapeutischer Relevanz, sondern kann auch einen Beitrag leisten, Untergruppen der juvenilen Zwangsst{\"o}rung zu identifizieren und m{\"o}glicherweise R{\"u}ckschl{\"u}sse auf die Entstehung der Erkrankung zu ziehen.}, language = {de} } @phdthesis{Kneer2022, author = {Kneer, Katharina Johanna}, title = {The association of three anxiety dimensions in children and adolescents: their influence on the brain and malleability by a prevention program}, doi = {10.25972/OPUS-25746}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-257468}, school = {Universit{\"a}t W{\"u}rzburg}, year = {2022}, abstract = {Anxiety disorders are the most prevalent group of neuropsychiatric disorders and go along with high personal suffering. They often arise during childhood and show a progression across the life span, thus making this age a specific vulnerable period during development. Still most research about these disorders is done in adults. In light of this, it seems of utmost importance to identify predictive factors of anxiety disorders in children and adolescents. Temperament or personality traits have been proclaimed as risk markers for the development of subsequent anxiety disorders, but their exact interplay is not clear. In this dissertation an effort is made to contribute to the understanding of how risk markers of early temperamental traits, in this case Trait Anxiety, Anxiety Sensitivity and Separation Anxiety are interplaying. While Trait Anxiety is regarded as a more general tendency to react anxiously to threatening situations or stimuli (Unnewehr, Joormann, Schneider, \& Margraf, 1992), Anxiety Sensitivity is the tendency to react with fear to one's own anxious sensations (Allan et al., 2014; S. Reiss, Peterson, Gursky, \& McNally, 1986), and Separation Anxiety is referring to the extent to which the child is avoiding certain situations because of the fear of being separated from primary care givers (In-Albon \& Schneider, 2011). In addition, it will be addressed how these measurements are associated with negative life events, as well as brain functioning and if they are malleable by a prevention program in children and adolescents. In study 1 the aim was to extend the knowledge about the interrelations of this anxiety dimensions and negative life events. Results indicated positive correlations of all three anxiety traits as well as with negative life events. Thus, a close connection of all three anxiety measures as well as with negative life events could be indicated. The closest association was found between Anxiety Sensitivity and Trait Anxiety and between Separation Anxiety and Anxiety Sensitivity. Furthermore, negative life events functioned as mediator between Anxiety Sensitivity and Trait Anxiety, indicating that a part of the association was explained by negative life events. In study 2 we extended the findings from study 1 with neurobiological parameters and examined the influence of anxiety traits on emotional brain activation by administering the "emotional face matching task". This task activated bilateral prefrontal regions as well as both hippocampi and the right amygdala. Further analyses indicated dimension-specific brain activations: Trait Anxiety was associated with a hyperactivation of the left inferior frontal gyrus (IFG) and Separation Anxiety with a lower activation bilaterally in the IFG and the right middle frontal gyrus (MFG). Furthermore, the association between Separation Anxiety and Anxiety Sensitivity was moderated by bi-hemispheric Separation-Anxiety-related IFG activation. Thus, we could identify distinct brain activation patterns for the anxiety dimensions (Trait Anxiety and Separation Anxiety) and their associations (Separation Anxiety and Anxiety Sensitivity). The aim of study 3 was to probe the selective malleability of the anxiety dimensions via a prevention program in an at-risk population. We could identify a reduction of all three anxiety traits from pre- to post-prevention-assessment and that this effect was significant in Anxiety Sensitivity and Trait Anxiety scores. Furthermore, we found that pre-intervention Separation Anxiety and Anxiety Sensitivity post-intervention were associated. In addition, pre-interventive scores were correlated with the intervention-induced change within the measure (i.e., the higher the score before the intervention the higher the prevention-induced change) and pre-intervention Anxiety Sensitivity correlated with the change in Separation Anxiety scores. All relations, seemed to be direct, as mediation/moderation analyses with negative life events did not reveal any significant effect. These results are very promising, because research about anxiety prevention in children and adolescents is still rare and our results are indicating that cognitive-behavioural-therapy based prevention is gilding significant results in an indicated sample even when samples sizes are small like in our study. In sum the present findings hint towards distinct mechanisms underlying the three different anxiety dimensions on a phenomenological and neurobiological level, though they are highly overlapping (Higa-McMillan, Francis, Rith-Najarian, \& Chorpita, 2016; Taylor, 1998). Furthermore, the closest associations were found between Anxiety Sensitivity and Trait Anxiety, as well as between Separation Anxiety and Anxiety Sensitivity. Specifically, we were able to find a neuronal manifestation of the association between Separation Anxiety and Anxiety Sensitivity (Separation Anxiety-specific IFG activation) and a predictive potential on prevention influence. The results of these studies lead to a better understanding of the etiology of anxiety disorders and the interplay between different anxiety-related temperamental traits and could lead to further valuable knowledge about the intervention as well as further prevention strategies.}, subject = {Pr{\"a}vention}, language = {en} } @article{KolarHammerleJenetzkyetal.2016, author = {Kolar, David R. and Hammerle, Florian and Jenetzky, Ekkehart and Huss, Michael and B{\"u}rger, Arne}, title = {Aversive tension in female adolescents with Anorexia Nervosa: a controlled ecological momentary assessment using smartphones}, series = {BMC Psychiatry}, volume = {16}, journal = {BMC Psychiatry}, number = {97}, doi = {10.1186/s12888-016-0807-8}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-164720}, year = {2016}, abstract = {Background Current models of Anorexia Nervosa (AN) emphasize the role of emotion regulation. Aversive tension, described as a state of intense arousal and negative valence, is considered to be a link between emotional events and disordered eating. Recent research focused only on adult patients, and mainly general emotion regulation traits were studied. However, the momentary occurrence of aversive tension, particularly in adolescents with AN, has not been previously studied. Method 20 female adolescents with AN in outpatient treatment and 20 healthy adolescents aged 12 to 19 years participated in an ecological momentary assessment using their smartphones. Current states of aversive tension and events were assessed hourly for two consecutive weekdays. Mean and maximum values of aversive tension were compared. Multilevel analyses were computed to test the influence of time and reported events on aversive tension. The effect of reported events on subsequent changes of aversive tension in patients with AN were additionally tested in a multilevel model. Results AN patients showed higher mean and maximum levels of aversive tension. In a multilevel model, reported food intake was associated with higher levels of aversive tension in the AN group, whereas reported school or sport-related events were not linked to specific states of aversive tension. After food intake, subsequent increases of aversive tension were diminished and decreases of aversive tension were induced in adolescents with AN. Conclusions Aversive tension may play a substantial role in the psychopathology of AN, particular in relation with food intake. Therefore, treatment should consider aversive tension as a possible intervening variable during refeeding. Our findings encourage further research on aversive tension and its link to disordered eating.}, language = {en} } @article{KuhlmannHussBuergeretal.2016, author = {Kuhlmann, S.M. and Huss, M. and B{\"u}rger, A. and Hammerle, F.}, title = {Coping with stress in medical students: results of a randomized controlled trial using a mindfulness-based stress prevention training (MediMind) in Germany}, series = {BMC Medical Education}, volume = {16}, journal = {BMC Medical Education}, doi = {10.1186/s12909-016-0833-8}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-164593}, pages = {316}, year = {2016}, abstract = {Background High prevalence rates of psychological distress in medical training and later professional life indicate a need for prevention. Different types of intervention were shown to have good effects, but little is known about the relative efficacy of different types of stress management interventions, and methodological limitations have been reported. In order to overcome some of these limitations, the present study aimed at evaluating the effect of a specifically developed mindfulness-based stress prevention training for medical students (MediMind) on measures of distress, coping and psychological morbidity. Methods We report on a prospective randomized controlled trial with three study conditions: experimental treatment (MediMind), standard treatment (Autogenic Training) and a control group without treatment. The sample consisted of medical or dental students in the second or eighth semester. They completed self-report questionnaires at baseline, after the training and at one year follow-up. Distress (Trier Inventory for the Assessment of Chronic Stress, TICS) was assessed as the primary outcome and coping (Brief COPE) as a co-primary outcome. Effects on the psychological morbidity (Brief Symptom Inventory, BSI) as a secondary outcome were expected one year after the trainings. Results Initially, N = 183 students were randomly allocated to the study groups. At one year follow-up N = 80 could be included into the per-protocol analysis: MediMind (n =31), Autogenic Training (n = 32) and control group (n = 17). A selective drop-out for students who suffered more often from psychological symptoms was detected (p = .020). MANCOVA's on TICS and Brief COPE revealed no significant interaction effects. On the BSI, a significant overall interaction effect became apparent (p = .002, η2partial = .382), but post hoc analyses were not significant. Means of the Global Severity Index (BSI) indicated that MediMind may contribute to a decrease in psychological morbidity. Conclusion Due to the high and selective dropout rates, the results cannot be generalized and further research is necessary. Since the participation rate of the trainings was high, a need for further prevention programs is indicated. The study gives important suggestions on further implementation and evaluation of stress prevention in medical schools.}, language = {en} } @article{KuhnScharfenortSchuemannetal.2016, author = {Kuhn, Manuel and Scharfenort, Robert and Sch{\"u}mann, Dirk and Schiele, Miriam A. and M{\"u}nsterk{\"o}tter, Anna L. and Deckert, J{\"u}rgen and Domschke, Katharina and Haaker, Jan and Kalisch, Raffael and Pauli, Paul and Reif, Andreas and Romanos, Marcel and Zwanzger, Peter and Lonsdorf, Tina B.}, title = {Mismatch or allostatic load? Timing of life adversity differentially shapes gray matter volume and anxious temperament}, series = {Social Cognitive and Affective Neuroscience}, volume = {11}, journal = {Social Cognitive and Affective Neuroscience}, number = {4}, doi = {10.1093/scan/nsv137}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-189645}, pages = {537-547}, year = {2016}, abstract = {Traditionally, adversity was defined as the accumulation of environmental events (allostatic load). Recently however, a mismatch between the early and the later (adult) environment (mismatch) has been hypothesized to be critical for disease development, a hypothesis that has not yet been tested explicitly in humans. We explored the impact of timing of life adversity (childhood and past year) on anxiety and depression levels (N = 833) and brain morphology (N = 129). Both remote (childhood) and proximal (recent) adversities were differentially mirrored in morphometric changes in areas critically involved in emotional processing (i.e. amygdala/hippocampus, dorsal anterior cingulate cortex, respectively). The effect of adversity on affect acted in an additive way with no evidence for interactions (mismatch). Structural equation modeling demonstrated a direct effect of adversity on morphometric estimates and anxiety/depression without evidence of brain morphology functioning as a mediator. Our results highlight that adversity manifests as pronounced changes in brain morphometric and affective temperament even though these seem to represent distinct mechanistic pathways. A major goal of future studies should be to define critical time periods for the impact of adversity and strategies for intervening to prevent or reverse the effects of adverse childhood life experiences.}, language = {en} } @phdthesis{Kaempf2012, author = {K{\"a}mpf, Anne Kristina}, title = {Does methylphenidate cause a cytogenetic effect in children with attention deficit hyperactivity disorder?}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-77652}, school = {Universit{\"a}t W{\"u}rzburg}, year = {2012}, abstract = {MPH wird seit {\"u}ber 50 Jahren zur Therapie des ADHS eingesetzt. Gerade in den letzten Jahren wurde deutlich, dass der Einsatz ohne fundierte Kenntnis {\"u}ber m{\"o}gliche Langzeit-effekte erfolgte, da zum Zeitpunkt der Zulassung aufgrund der begrenzten technischen M{\"o}glichkeiten weniger strenge und weniger umfassende Einschr{\"a}nkungen beachtet wer-den mussten (Walitza, Werner et al. 2007). Da in den letzten Jahren die Anzahl der verschrieben Tagesdosen MPH sprunghaft anstiegen, ist es wichtig, auch die langfristigen Nebenwirkungen von MPH zu untersuchen (Janhsen 2007). Eine Studie von El-Zein et al. von 2005 brachte die Frage auf, ob MPH eventuell Genomsch{\"a}den hervorrufe. Bei 11 von 12 untersuchten Kindern wurde unter der Therapie mit MPH um das 2,4fache erh{\"o}hte Mikrokernfrequenzen gefunden (El-Zein, Abdel-Rahman et al. 2005). Dies beunruhig-te vor allem im Hinblick auf das mit erh{\"o}hten Mikrokernfrequenzen korrelierte erh{\"o}hte Karzinomrisiko. Eine daraufhin von Walitza et al. durchgef{\"u}hrte Studie, die ebenfalls Mikrokernfrequenzen in peripheren Blutzellen untersuchte (Walitza, Werner et al. 2007), konnte keine Hinweise auf eine Genomsch{\"a}digung durch MPH erbringen. Zahlreiche weitere Untersuchungen zur potentiellen Genomsch{\"a}digung durch MPH konnten die Ergebnisse durch in vivo- oder in vitro-Studien nicht best{\"a}tigen und kritisierten die ge-ringe Stichprobengr{\"o}ße sowie mangelnde Transparenz der Arbeit von El-Zein (Preston, Kollins et al. 2005; El-Zein, Hay et al. 2006; Holtmann, Kaina et al. 2006; Suter, Martus et al. 2006). Da jedoch keine weitere Studie sich konkret mit zytogenetischen Effekten in peripheren Blutzellen befasste, soll die vorliegende Arbeit dazu dienen, den Verdacht einer Genomsch{\"a}digung endg{\"u}ltig auszur{\"a}umen (Walitza, Kampf et al. 2009). Dazu wurde eine gr{\"o}ßere Gruppe von Kindern eingeschlossen, sowie Untersuchungen zu verschiedenen Zeitpunkten w{\"a}hrend der MPH-Einnahme, bis hin zu Untersuchungen nach einem Zeitraum von 12 Monaten der MPH- Einnahme, durchgef{\"u}hrt. Mit Hilfe eines Mikrokerntestes wurden in der vorliegenden Studie versucht, DNS-Sch{\"a}den an periphe-ren Lymphozyten zu bestimmen, um daraus auf ein potentiell erh{\"o}htes Krebsrisiko schließen zu k{\"o}nnen. Im Vergleich mit einer gesunden Kontrollgruppe waren die Werte von ADHS-Kindern ohne MPH-Therapie sowie nach 3 und 12 Monaten MPH-Therapie zwar signifikant er-h{\"o}ht, diese gesunde Kontrollgruppe wies jedoch im Vergleich mit internationalen Refe-renzwerten eine extrem niedrige Mikrokernfrequenz auf, so dass davon ausgegangen werden muss, dass diese Vergleiche nur begrenzte Aussagekraft haben. In keiner der verschiedenen mit MPH therapierten Gruppen konnten {\"u}ber die Dauer der Einnahme eine signifikant Erh{\"o}hung der Mikrokernfrequenzen im Vergleich zu den Werten vor Einnahmebeginn nachgewiesen werden, was den Schluss zul{\"a}sst, dass eine Therapie mit Methylphenidat in therapie{\"u}blichen Dosen bei Kindern das Erbgut nicht zu sch{\"a}digen scheint. Dieses Ergebnis best{\"a}tigen inzwischen auch weitere Studien. Der Mikrokerntest erfasst Genomsch{\"a}den, nicht jedoch etwaige tumorpromovierende Eigenschaften des verabreichten Medikaments. Damit ist unklar, ob MPH auf andere Art als {\"u}ber eine Sch{\"a}digung des Genoms das Karzinomrisiko erh{\"o}hen k{\"o}nnte. Erste epidemiologische Studien sehen jedoch keinen Hinweis auf eine wie auch immer entstandene erh{\"o}hte Karzinominzidenz unter der Therapie mit MPH (Selby, Friedman et al. 1989; Oestreicher, Friedman et al. 2007). Hier scheinen jedoch weitere epidemiologische Studien, die m{\"o}g-lichst große Zeitspannen umfassen, n{\"o}tig zu sein}, subject = {Methylphenidat}, language = {en} } @article{LechermeierZimmerLueffeetal.2019, author = {Lechermeier, Carina G. and Zimmer, Frederic and L{\"u}ffe, Teresa M. and Lesch, Klaus-Peter and Romanos, Marcel and Lillesaar, Christina and Drepper, Carsten}, title = {Transcript analysis of zebrafish GLUT3 genes, slc2a3a and slc2a3b, define overlapping as well as distinct expression domains in the zebrafish (Danio rerio) central nervous system}, series = {Frontiers in Molecular Neuroscience}, volume = {12}, journal = {Frontiers in Molecular Neuroscience}, number = {199}, doi = {10.3389/fnmol.2019.00199}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-201797}, year = {2019}, abstract = {The transport of glucose across the cell plasma membrane is vital to most mammalian cells. The glucose transporter (GLUT; also called SLC2A) family of transmembrane solute carriers is responsible for this function in vivo. GLUT proteins encompass 14 different isoforms in humans with different cell type-specific expression patterns and activities. Central to glucose utilization and delivery in the brain is the neuronally expressed GLUT3. Recent research has shown an involvement of GLUT3 genetic variation or altered expression in several different brain disorders, including Huntington's and Alzheimer's diseases. Furthermore, GLUT3 was identified as a potential risk gene for multiple psychiatric disorders. To study the role of GLUT3 in brain function and disease a more detailed knowledge of its expression in model organisms is needed. Zebrafish (Danio rerio) has in recent years gained popularity as a model organism for brain research and is now well-established for modeling psychiatric disorders. Here, we have analyzed the sequence of GLUT3 orthologs and identified two paralogous genes in the zebrafish, slc2a3a and slc2a3b. Interestingly, the Glut3b protein sequence contains a unique stretch of amino acids, which may be important for functional regulation. The slc2a3a transcript is detectable in the central nervous system including distinct cellular populations in telencephalon, diencephalon, mesencephalon and rhombencephalon at embryonic and larval stages. Conversely, the slc2a3b transcript shows a rather diffuse expression pattern at different embryonic stages and brain regions. Expression of slc2a3a is maintained in the adult brain and is found in the telencephalon, diencephalon, mesencephalon, cerebellum and medulla oblongata. The slc2a3b transcripts are present in overlapping as well as distinct regions compared to slc2a3a. Double in situ hybridizations were used to demonstrate that slc2a3a is expressed by some GABAergic neurons at embryonic stages. This detailed description of zebrafish slc2a3a and slc2a3b expression at developmental and adult stages paves the way for further investigations of normal GLUT3 function and its role in brain disorders.}, language = {en} } @article{LudwigSaemannAlexanderetal.2013, author = {Ludwig, K. U. and S{\"a}mann, P. and Alexander, M. and Becker, J. and Bruder, J. and Moll, K. and Spieler, D. and Czisch, M. and Warnke, A. and Docherty, S. J. and Davis, O. S. P. and Plomin, R. and N{\"o}then, M. M. and Landerl, K. and M{\"u}ller-Myhsok, B. and Hoffmann, P. and Schumacher, J. and Schulte-K{\"o}rne, G. and Czamara, D.}, title = {A common variant in Myosin-18B contributes to mathematical abilities in children with dyslexia and intraparietal sulcus variability in adults}, series = {Translational Psychiatry}, volume = {3}, journal = {Translational Psychiatry}, number = {e229}, doi = {10.1038/tp.2012.148}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-131513}, year = {2013}, abstract = {The ability to perform mathematical tasks is required in everyday life. Although heritability estimates suggest a genetic contribution, no previous study has conclusively identified a genetic risk variant for mathematical performance. Research has shown that the prevalence of mathematical disabilities is increased in children with dyslexia. We therefore correlated genome-wide data of 200 German children with spelling disability, with available quantitative data on mathematic ability. Replication of the top findings in additional dyslexia samples revealed that rs133885 was a genome-wide significant marker for mathematical abilities\((P_{comb}=7.71 x 10^{-10}, n=699)\), with an effect size of 4.87\%. This association was also found in a sample from the general population (P=0.048, n=1080), albeit with a lower effect size. The identified variant encodes an amino-acid substitution in MYO18B, a protein with as yet unknown functions in the brain. As areas of the parietal cortex, in particular the intraparietal sulcus (IPS), are involved in numerical processing in humans, we investigated whether rs133885 was associated with IPS morphology using structural magnetic resonance imaging data from 79 neuropsychiatrically healthy adults. Carriers of the MYO18B risk-genotype displayed a significantly lower depth of the right IPS. This validates the identified association between rs133885 and mathematical disability at the level of a specific intermediate phenotype.}, language = {en} } @phdthesis{LopezdeMiguel2024, author = {L{\´o}pez de Miguel, Pilar}, title = {Patientenzufriedenheit mit dem Aufkl{\"a}rungsgespr{\"a}ch}, doi = {10.25972/OPUS-34720}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-347201}, school = {Universit{\"a}t W{\"u}rzburg}, year = {2024}, abstract = {Ziele: Das Ziel der vorliegenden Arbeit ist eine standardisierte Analyse der Patientenzufriedenheit mit dem Aufkl{\"a}rungsgespr{\"a}ch und die m{\"o}gliche Einflussfaktoren, die hier eine Rolle spielen k{\"o}nnen, zu bieten. Methodik: Es wurden 189 Frageb{\"o}gen bzw. Aufkl{\"a}rungsgespr{\"a}che in den Kliniken f{\"u}r An{\"a}sthesie und Innere Medizin im St. Josef Krankenhaus und Chirurgie und Kinder- und Jugendpsychiatrie im Leopoldina Krankenhaus in Schweinfurt untersucht. Ergebnisse: Der Fragebogen, der verwendet wurde, war reliabel. Es zeigte sich eine schlechte Item-Selektivit{\"a}t. Die Kriteriumsvalidit{\"a}t konnte best{\"a}tigt werden jedoch nicht die diskriminante Validit{\"a}t. Die Patienten waren zufriedener mit {\"A}rzten, die Deutsch als Muttersprache angaben, mit l{\"a}ngeren Aufkl{\"a}rungsgespr{\"a}chen und mit Fach{\"a}rzten im Vergleich zu Assistenz{\"a}rzten. Eine h{\"o}here allgemeine Lebenszufriedenheit war mit h{\"o}herer Patientenzufriedenheit mit dem Aufkl{\"a}rungsgespr{\"a}ch assoziiert. Der moralistische Bias kann einen St{\"o}rfaktor der Validit{\"a}t der Messungen darstellen. Zusammenfassung: Eine angemessene Gespr{\"a}chdauer, die deutsche Muttersprache und der Facharztstatus des aufkl{\"a}renden Arztes haben einen positiven Einfluss auf die Patientenzufriedenheit mit dem Aufkl{\"a}rungsgespr{\"a}ch. Um sicher zu stellen, welche von diesen drei Faktoren besondere Wichtigkeit besitzt, werden weitere Untersuchungen ben{\"o}tigt.}, subject = {Zufriedenheit}, language = {de} } @article{LueffeBauerGiogaetal.2022, author = {L{\"u}ffe, Teresa M. and Bauer, Moritz and Gioga, Zoi and {\"O}zbay, Duru and Romanos, Marcel and Lillesaar, Christina and Drepper, Carsten}, title = {Loss-of-Function Models of the Metabotropic Glutamate Receptor Genes Grm8a and Grm8b Display Distinct Behavioral Phenotypes in Zebrafish Larvae (Danio rerio)}, series = {Frontiers in Molecular Neuroscience}, volume = {15}, journal = {Frontiers in Molecular Neuroscience}, issn = {1662-5099}, doi = {10.3389/fnmol.2022.901309}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-277429}, year = {2022}, abstract = {Members of the family of metabotropic glutamate receptors are involved in the pathomechanism of several disorders of the nervous system. Besides the well-investigated function of dysfunctional glutamate receptor signaling in neurodegenerative diseases, neurodevelopmental disorders (NDD), like autism spectrum disorders (ASD) and attention-deficit and hyperactivity disorder (ADHD) might also be partly caused by disturbed glutamate signaling during development. However, the underlying mechanism of the type III metabotropic glutamate receptor 8 (mGluR8 or GRM8) involvement in neurodevelopment and disease mechanism is largely unknown. Here we show that the expression pattern of the two orthologs of human GRM8, grm8a and grm8b, have evolved partially distinct expression patterns in the brain of zebrafish (Danio rerio), especially at adult stages, suggesting sub-functionalization of these two genes during evolution. Using double in situ hybridization staining in the developing brain we demonstrate that grm8a is expressed in a subset of gad1a-positive cells, pointing towards glutamatergic modulation of GABAergic signaling. Building on this result we generated loss-of-function models of both genes using CRISPR/Cas9. Both mutant lines are viable and display no obvious gross morphological phenotypes making them suitable for further analysis. Initial behavioral characterization revealed distinct phenotypes in larvae. Whereas grm8a mutant animals display reduced swimming velocity, grm8b mutant animals show increased thigmotaxis behavior, suggesting an anxiety-like phenotype. We anticipate that our two novel metabotropic glutamate receptor 8 zebrafish models may contribute to a deeper understanding of its function in normal development and its role in the pathomechanism of disorders of the central nervous system.}, language = {en} } @article{LueffeD'OrazioBaueretal.2021, author = {L{\"u}ffe, Teresa M. and D'Orazio, Andrea and Bauer, Moritz and Gioga, Zoi and Schoeffler, Victoria and Lesch, Klaus-Peter and Romanos, Marcel and Drepper, Carsten and Lillesaar, Christina}, title = {Increased locomotor activity via regulation of GABAergic signalling in foxp2 mutant zebrafish - implications for neurodevelopmental disorders}, series = {Translational Psychiatry}, volume = {11}, journal = {Translational Psychiatry}, doi = {10.1038/s41398-021-01651-w}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-264713}, year = {2021}, abstract = {Recent advances in the genetics of neurodevelopmental disorders (NDDs) have identified the transcription factor FOXP2 as one of numerous risk genes, e.g. in autism spectrum disorders (ASD) and attention-deficit/hyperactivity disorder (ADHD). FOXP2 function is suggested to be involved in GABAergic signalling and numerous studies demonstrate that GABAergic function is altered in NDDs, thus disrupting the excitation/inhibition balance. Interestingly, GABAergic signalling components, including glutamate-decarboxylase 1 (Gad1) and GABA receptors, are putative transcriptional targets of FOXP2. However, the specific role of FOXP2 in the pathomechanism of NDDs remains elusive. Here we test the hypothesis that Foxp2 affects behavioural dimensions via GABAergic signalling using zebrafish as model organism. We demonstrate that foxp2 is expressed by a subset of GABAergic neurons located in brain regions involved in motor functions, including the subpallium, posterior tuberculum, thalamus and medulla oblongata. Using CRISPR/Cas9 gene-editing we generated a novel foxp2 zebrafish loss-of-function mutant that exhibits increased locomotor activity. Further, genetic and/or pharmacological disruption of Gad1 or GABA-A receptors causes increased locomotor activity, resembling the phenotype of foxp2 mutants. Application of muscimol, a GABA-A receptor agonist, rescues the hyperactive phenotype induced by the foxp2 loss-of-function. By reverse translation of the therapeutic effect on hyperactive behaviour exerted by methylphenidate, we note that application of methylphenidate evokes different responses in wildtype compared to foxp2 or gad1b loss-of-function animals. Together, our findings support the hypothesis that foxp2 regulates locomotor activity via GABAergic signalling. This provides one targetable mechanism, which may contribute to behavioural phenotypes commonly observed in NDDs.}, language = {en} } @phdthesis{Lueffe2023, author = {L{\"u}ffe, Teresa Magdalena}, title = {Behavioral and pharmacological validation of genetic zebrafish models for ADHD}, doi = {10.25972/OPUS-25716}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-257168}, school = {Universit{\"a}t W{\"u}rzburg}, year = {2023}, abstract = {Attention-deficit/hyperactivity disorder (ADHD) is the most prevalent neurodevelopmental disorder described in psychiatry today. ADHD arises during early childhood and is characterized by an age-inappropriate level of inattention, hyperactivity, impulsivity, and partially emotional dysregulation. Besides, substantial psychiatric comorbidity further broadens the symptomatic spectrum. Despite advances in ADHD research by genetic- and imaging studies, the etiopathogenesis of ADHD remains largely unclear. Twin studies suggest a heritability of 70-80 \% that, based on genome-wide investigations, is assumed to be polygenic and a mixed composite of small and large, common and rare genetic variants. In recent years the number of genetic risk candidates is continuously increased. However, for most, a biological link to neuropathology and symptomatology of the patient is still missing. Uncovering this link is vital for a better understanding of the disorder, the identification of new treatment targets, and therefore the development of a more targeted and possibly personalized therapy. The present thesis addresses the issue for the ADHD risk candidates GRM8, FOXP2, and GAD1. By establishing loss of function zebrafish models, using CRISPR/Cas9 derived mutagenesis and antisense oligonucleotides, and studying them for morphological, functional, and behavioral alterations, it provides novel insights into the candidate's contribution to neuropathology and ADHD associated phenotypes. Using locomotor activity as behavioral read-out, the present work identified a genetic and functional implication of Grm8a, Grm8b, Foxp2, and Gad1b in ADHD associated hyperactivity. Further, it provides substantial evidence that the function of Grm8a, Grm8b, Foxp2, and Gad1b in activity regulation involves GABAergic signaling. Preliminary indications suggest that the three candidates interfere with GABAergic signaling in the ventral forebrain/striatum. However, according to present and previous data, via different biological mechanisms such as GABA synthesis, transmitter release regulation, synapse formation and/or transcriptional regulation of synaptic components. Intriguingly, this work further demonstrates that the activity regulating circuit, affected upon Foxp2 and Gad1b loss of function, is involved in the therapeutic effect mechanism of methylphenidate. Altogether, the present thesis identified altered GABAergic signaling in activity regulating circuits in, presumably, the ventral forebrain as neuropathological underpinning of ADHD associated hyperactivity. Further, it demonstrates altered GABAergic signaling as mechanistic link between the genetic disruption of Grm8a, Grm8b, Foxp2, and Gad1b and ADHD symptomatology like hyperactivity. Thus, this thesis highlights GABAergic signaling in activity regulating circuits and, in this context, Grm8a, Grm8b, Foxp2, and Gad1b as exciting targets for future investigations on ADHD etiopathogenesis and the development of novel therapeutic interventions for ADHD related hyperactivity. Additionally, thigmotaxis measurements suggest Grm8a, Grm8b, and Gad1b as interesting candidates for prospective studies on comorbid anxiety in ADHD. Furthermore, expression analysis in foxp2 mutants demonstrates Foxp2 as regulator of ADHD associated gene sets and neurodevelopmental disorder (NDD) overarching genetic and functional networks with possible implications for ADHD polygenicity and comorbidity. Finally, with the characterization of gene expression patterns and the generation and validation of genetic zebrafish models for Grm8a, Grm8b, Foxp2, and Gad1b, the present thesis laid the groundwork for future research efforts, for instance, the identification of the functional circuit(s) and biological mechanism(s) by which Grm8a, Grm8b, Foxp2, and Gad1b loss of function interfere with GABAergic signaling and ultimately induce hyperactivity.}, language = {en} } @phdthesis{Mai2005, author = {Mai, Marion}, title = {Mutationsanalyse der Gene Connexin 36 (CX36) und Tyrosinkinase 3 (TYRO3) als Kandidatengene f{\"u}r periodische Katatonie}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-18046}, school = {Universit{\"a}t W{\"u}rzburg}, year = {2005}, abstract = {Das humane Chromosom 15 wurde bereits im Zusammenhang mit anderen Erkrankungen wie dem Marfan Syndrom und der Tay Sachs Erkrankung erw{\"a}hnt. F{\"u}r deren Genese wurden auf dem Chromosom gelegene Gene verantwortlich gemacht (Richard et al. 1994). Aufbauend auf den Vorarbeiten der W{\"u}rzburger Arbeitsgruppe (St{\"o}ber et al. 2000, 2002; Meyer et al. 2002) wurden auf Chromosom 15 anhand der Lokalisation, der Funktion und dem Vorhandensein im Zentralnervensystem die Gene Cx36 und TYRO3 f{\"u}r die Mutationsanalyse ausgew{\"a}hlt, um sie nach der Methode von Sanger (Sanger et al. 1977) zu sequenzieren. Sowohl Cx36 als auch TYRO3 spielen eine zentrale Rolle in der Entwicklung und Zellinteraktion im ZNS. Es w{\"a}re denkbar, daß ein Defekt w{\"a}hrend der Synaptogenese im ZNS an der Krankheitsentstehung beteiligt ist, ebenso wie eine unzureichende Ausbildung von Gap junctions, an denen Cx36 maßgeblich beteiligt ist. Die Patienten-DNA wurde aus Blutproben von Probanden mit periodischer Katatonie gewonnen. Diese wurden aus der Familie 11 der bereits erw{\"a}hnten Studie rekrutiert, die in drei Generationen von der Erkrankung betroffen ist und zehn gesunde, sowie 7 kranke Mitglieder z{\"a}hlt. Die Proben wurden zusammen mit solchen von gesunden Kontrollpersonen vergleichend sequenziert und auf {\"U}bereinstimmung mit den Eintr{\"a}gen der GenBank {\"u}berpr{\"u}ft mit dem Ziel, Mutationen zu finden, die zu einem Defekt im Protein f{\"u}hren und zur Auspr{\"a}gung der Krankheit beitragen, bzw. die Gene als Kandidaten auszuschließen.}, language = {de} } @article{McNeillZieglerRadtkeetal.2020, author = {McNeill, Rhiannon V. and Ziegler, Georg C. and Radtke, Franziska and Nieberler, Matthias and Lesch, Klaus‑Peter and Kittel‑Schneider, Sarah}, title = {Mental health dished up — the use of iPSC models in neuropsychiatric research}, series = {Journal of Neural Transmission}, volume = {127}, journal = {Journal of Neural Transmission}, issn = {0300-9564}, doi = {10.1007/s00702-020-02197-9}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-235666}, pages = {1547-1568}, year = {2020}, abstract = {Genetic and molecular mechanisms that play a causal role in mental illnesses are challenging to elucidate, particularly as there is a lack of relevant in vitro and in vivo models. However, the advent of induced pluripotent stem cell (iPSC) technology has provided researchers with a novel toolbox. We conducted a systematic review using the PRISMA statement. A PubMed and Web of Science online search was performed (studies published between 2006-2020) using the following search strategy: hiPSC OR iPSC OR iPS OR stem cells AND schizophrenia disorder OR personality disorder OR antisocial personality disorder OR psychopathy OR bipolar disorder OR major depressive disorder OR obsessive compulsive disorder OR anxiety disorder OR substance use disorder OR alcohol use disorder OR nicotine use disorder OR opioid use disorder OR eating disorder OR anorexia nervosa OR attention-deficit/hyperactivity disorder OR gaming disorder. Using the above search criteria, a total of 3515 studies were found. After screening, a final total of 56 studies were deemed eligible for inclusion in our study. Using iPSC technology, psychiatric disease can be studied in the context of a patient's own unique genetic background. This has allowed great strides to be made into uncovering the etiology of psychiatric disease, as well as providing a unique paradigm for drug testing. However, there is a lack of data for certain psychiatric disorders and several limitations to present iPSC-based studies, leading us to discuss how this field may progress in the next years to increase its utility in the battle to understand psychiatric disease.}, language = {en} } @article{MelfsenJansRomanosetal.2022, author = {Melfsen, Siebke and Jans, Thomas and Romanos, Marcel and Walitza, Susanne}, title = {Family relationships in selective mutism — a comparison group study of children and adolescents}, series = {Children}, volume = {9}, journal = {Children}, number = {11}, issn = {2227-9067}, doi = {10.3390/children9111634}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-290386}, year = {2022}, abstract = {Selective mutism (SM) mostly develops early in childhood and this has led to interest into whether there could be differences in relationships in families with SM compared to a control group without SM. Currently, there are merely few empirical studies examining family relationships in SM. A sample of 28 children and adolescents with SM was compared to 33 controls without SM. The groups were investigated using self-report questionnaires (Selective Mutism Questionnaire, Child-Parent Relationship Test—Child Version) for the assessment of SM and family relationships. Children with SM did not report a significantly different relationship to their mothers compared with the control group without SM. However, the scores in respect to the relationship to their fathers were significantly lower in cohesion, identification and autonomy compared with children without SM. Relationships in families with SM should be considered more in therapy.}, language = {en} } @article{MelfsenKuehnemundSchwiegeretal.2011, author = {Melfsen, Siebke and K{\"u}hnemund, Martina and Schwieger, Judith and Warnke, Andreas and Stadler, Christina and Poustka, Fritz and Stangier, Ulrich}, title = {Cognitive behavioral therapy of socially phobic children focusing on cognition: a randomised wait-list control study}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-68747}, year = {2011}, abstract = {Background: Although literature provides support for cognitive behavioral therapy (CBT) as an efficacious intervention for social phobia, more research is needed to improve treatments for children. Methods: Forty four Caucasian children (ages 8-14) meeting diagnostic criteria of social phobia according to the Diagnostic and Statistical Manual of Mental Disorders (4th ed.; APA, 1994) were randomly allocated to either a newly developed CBT program focusing on cognition according to the model of Clark and Wells (n = 21) or a wait-list control group (n = 23). The primary outcome measure was clinical improvement. Secondary outcomes included improvements in anxiety coping, dysfunctional cognitions, interaction frequency and comorbid symptoms. Outcome measures included child report and clinican completed measures as well as a diagnostic interview. Results: Significant differences between treatment participants (4 dropouts) and controls (2 dropouts) were observed at post test on the German version of the Social Phobia and Anxiety Inventory for Children. Furthermore, in the treatment group, significantly more children were free of diagnosis than in wait-list group at post-test. Additional child completed and clinician completed measures support the results. Discussion: The study is a first step towards investigating whether CBT focusing on cognition is efficacious in treating children with social phobia. Future research will need to compare this treatment to an active treatment group. There remain the questions of whether the effect of the treatment is specific to the disorder and whether the underlying theoretical model is adequate. Conclusion: Preliminary support is provided for the efficacy of the cognitive behavioral treatment focusing on cognition in socially phobic children. Active comparators should be established with other evidence-based CBT programs for anxiety disorders, which differ significantly in their dosage and type of cognitive interventions from those of the manual under evaluation (e.g. Coping Cat).}, subject = {Verhaltenstherapie}, language = {en} }