TY  - JOUR
A1  - Holz, Nathalie
A1  - Boecker-Schlier, Regina
A1  - Buchmann, Arlette F.
A1  - Blomeyer, Dorothea
A1  - Baumeister, Sarah
A1  - Hohmann, Sarah
A1  - Jennen-Steinmetz, Christine
A1  - Wolf, Isabella
A1  - Rietschel, Marcella
A1  - Witt, Stephanie H.
A1  - Plichta, Michael M.
A1  - Meyer-Lindenberg, Andreas
A1  - Schmidt, Martin H.
A1  - Esser, Günter
A1  - Banaschewski, Tobias
A1  - Brandeis, Daniel
A1  - Laucht, Manfred
T1  - Evidence for a Sex-Dependent MAOAx Childhood Stress Interaction in the Neural Circuitry of Aggression
JF  - Cerebral cortex
N2  - Converging evidence emphasizes the role of an interaction between monoamine oxidase A (MAOA) genotype, environmental adversity, and sex in the pathophysiology of aggression. The present study aimed to clarify the impact of this interaction on neural activity in aggression-related brain systems. Functional magnetic resonance imaging was performed in 125 healthy adults from a high-risk community sample followed since birth. DNA was genotyped for the MAOA-VNTR (variable number of tandem repeats). Exposure to childhood life stress (CLS) between the ages of 4 and 11 years was assessed using a standardized parent interview, aggression by the Youth/Young Adult Self-Report between the ages of 15 and 25 years, and the VIRA-R (Vragenlijst Instrumentele En Reactieve Agressie) at the age of 15 years. Significant interactions were obtained between MAOA genotype, CLS, and sex relating to amygdala, hippocampus, and anterior cingulate cortex (ACC) response, respectively. Activity in the amygdala and hippocampus during emotional face-matching increased with the level of CLS in male MAOA-L, while decreasing in male MAOA-H, with the reverse pattern present in females. Findings in the opposite direction in the ACC during a flanker NoGo task suggested that increased emotional activity coincided with decreased inhibitory control. Moreover, increasing amygdala activity was associated with higher Y(A)SR aggression in male MAOA-L and female MAOA-H carriers. Likewise, a significant association between amygdala activity and reactive aggression was detected in female MAOA-H carriers. The results point to a moderating role of sex in the MAOAx CLS interaction for intermediate phenotypes of emotional and inhibitory processing, suggesting a possible mechanism in conferring susceptibility to violence-related disorders.
KW  - aggression
KW  - amygdala
KW  - fMRI
KW  - life stress
KW  - MAOA
Y1  - 2016
U6  - https://doi.org/10.1093/cercor/bhu249
SN  - 1047-3211
SN  - 1460-2199
VL  - 26
SP  - 904
EP  - 914
PB  - Oxford Univ. Press
CY  - Cary
ER  - 
TY  - JOUR
A1  - Pedatella, Nick M.
A1  - Fang, T. -W.
A1  - Jin, Hao
A1  - Sassi, F.
A1  - Schmidt, H.
A1  - Chau, Jorge Luis
A1  - Siddiqui, Tarique Adnan
A1  - Goncharenko, L.
T1  - Multimodel comparison of the ionosphere variability during the 2009 sudden stratosphere warming
JF  - Journal of geophysical research : Space physics
N2  - A comparison of different model simulations of the ionosphere variability during the 2009 sudden stratosphere warming (SSW) is presented. The focus is on the equatorial and low-latitude ionosphere simulated by the Ground-to-topside model of the Atmosphere and Ionosphere for Aeronomy (GAIA), Whole Atmosphere Model plus Global Ionosphere Plasmasphere (WAM+GIP), and Whole Atmosphere Community Climate Model eXtended version plus Thermosphere-Ionosphere-Mesosphere-Electrodynamics General Circulation Model (WACCMX+TIMEGCM). The simulations are compared with observations of the equatorial vertical plasma drift in the American and Indian longitude sectors, zonal mean Fregion peak density (NmF2) from the Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC) satellites, and ground-based Global Positioning System (GPS) total electron content (TEC) at 75 degrees W. The model simulations all reproduce the observed morning enhancement and afternoon decrease in the vertical plasma drift, as well as the progression of the anomalies toward later local times over the course of several days. However, notable discrepancies among the simulations are seen in terms of the magnitude of the drift perturbations, and rate of the local time shift. Comparison of the electron densities further reveals that although many of the broad features of the ionosphere variability are captured by the simulations, there are significant differences among the different model simulations, as well as between the simulations and observations. Additional simulations are performed where the neutral atmospheres from four different whole atmosphere models (GAIA, HAMMONIA (Hamburg Model of the Neutral and Ionized Atmosphere), WAM, and WACCMX) provide the lower atmospheric forcing in the TIME-GCM. These simulations demonstrate that different neutral atmospheres, in particular, differences in the solar migrating semidiurnal tide, are partly responsible for the differences in the simulated ionosphere variability in GAIA, WAM+GIP, and WACCMX+TIMEGCM.
KW  - ionosphere
KW  - sudden stratosphere warming
Y1  - 2016
U6  - https://doi.org/10.1002/2016JA022859
SN  - 2169-9380
SN  - 2169-9402
VL  - 121
SP  - 7204
EP  - 7225
PB  - American Geophysical Union
CY  - Washington
ER  - 
TY  - JOUR
A1  - Holz, Nathalie E.
A1  - Boecker-Schlier, Regina
A1  - Hohm, Erika
A1  - Zohsel, Katrin
A1  - Buchmann, Arlette F.
A1  - Blomeyer, Dorothea
A1  - Jennen-Steinmetz, Christine
A1  - Baumeister, Sarah
A1  - Hohmann, Sarah
A1  - Wolf, Isabella
A1  - Plichta, Michael M.
A1  - Esser, Günter
A1  - Schmidt, Martin
A1  - Meyer-Lindenberg, Andreas
A1  - Banaschewski, Tobias
A1  - Brandeis, Daniel
A1  - Laucht, Manfred
T1  - The Long-Term Impact of Early Life Poverty on Orbitofrontal Cortex Volume in Adulthood: Results from a Prospective Study Over 25 Years
JF  - Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology
N2  - Converging evidence has highlighted the association between poverty and conduct disorder (CD) without specifying neurobiological pathways. Neuroimaging research has emphasized structural and functional alterations in the orbitofrontal cortex (OFC) as one key mechanism underlying this disorder. The present study aimed to clarify the long-term influence of early poverty on OFC volume and its association with CD symptoms in healthy participants of an epidemiological cohort study followed since birth. At age 25 years, voxel-based morphometry was applied to study brain volume differences. Poverty (0 = non-exposed (N = 134), I = exposed (N = 33)) and smoking during pregnancy were determined using a standardized parent interview, and information on maternal responsiveness was derived from videotaped mother infant interactions at the age of 3 months. CD symptoms were assessed by diagnostic interview from 8 to 19 years of age. Information on life stress was acquired at each assessment and childhood maltreatment was measured using retrospective self-report at the age of 23 years. Analyses were adjusted for sex, parental psychopathology and delinquency, obstetric adversity, parental education, and current poverty. Individuals exposed to early life poverty exhibited a lower OFC volume. Moreover, we replicated previous findings of increased CD symptoms as a consequence of childhood poverty. This effect proved statistically mediated by OFC volume and exposure to life stress and smoking during pregnancy, but not by childhood maltreatment and maternal responsiveness. These findings underline the importance of studying the impact of early life adversity on brain alterations and highlight the need for programs to decrease income-related disparities.
Y1  - 2015
U6  - https://doi.org/10.1038/npp.2014.277
SN  - 0893-133X
SN  - 1740-634X
VL  - 40
IS  - 4
SP  - 996
EP  - 1004
PB  - Nature Publ. Group
CY  - London
ER  - 
TY  - JOUR
A1  - Wambsganß, Joachim
A1  - Hasinger, Günther
A1  - Giacconi, R.
A1  - Gunn, J. E.
A1  - Lehmann, Ingo
A1  - Schmidt, M.
A1  - Schneider, D. P.
A1  - Stanke, Thomas
A1  - Trümper, J.
A1  - Woods, D.
A1  - Zamorani, G.
T1  - A Distant X-ray Selected, Gravitationally-Lensing Galaxy Cluster
Y1  - 2000
ER  - 
TY  - JOUR
A1  - Lehmann, Ingo
A1  - Hasinger, Günther
A1  - Giacconi, R.
A1  - Gunn, J. E.
A1  - Schmidt, M.
A1  - Schneider, D. P.
A1  - Stanke, Thomas
A1  - Trümper, J.
A1  - Wambsganß, Joachim
A1  - Woods, D.
A1  - Zamorani, G.
T1  - One of the highest redshift X-Ray selected clusters of galaxies
Y1  - 2000
SN  - 3-540-67163-3
ER  - 
TY  - JOUR
A1  - Schwarz, W. H. Eugen
A1  - Andrae, Dirk
A1  - Arnold, S. R.
A1  - Heidberg, Joachim
A1  - Hellmann jr., H.
A1  - Hinze, J.
A1  - Karachalios, A.
A1  - Kovner, M. A.
A1  - Schmidt, P. C.
A1  - Zülicke, Lutz
T1  - Hans G. Hellmann (1903 - 1938) : ein deutscher Pionier der Quantenchemie in Moskau
Y1  - 1999
ER  - 
TY  - JOUR
A1  - Schwarz, W. H. Eugen
A1  - Andrae, Dirk
A1  - Arnold, S. R.
A1  - Heidberg, Joachim
A1  - Hellmann jr., H.
A1  - Hinze, J.
A1  - Karachalios, A.
A1  - Kovner, M. A.
A1  - Schmidt, P. C.
A1  - Zülicke, Lutz
T1  - Hans G. Hellmann (1903 - 1938) : ein Pionier der Quantenchemie
Y1  - 1999
ER  - 
TY  - JOUR
A1  - Laucht, Manfred
A1  - Gerold, M.
A1  - Esser, Günter
A1  - Schmidt, Martin H.
T1  - Strukturmodelle der Genese psychischer Störungen in der Kindheit : Ergebnisse einer prospektiven Studie von der Geburt bis zum Schulalter
Y1  - 1999
ER  - 
TY  - JOUR
A1  - Schmidt, Romy
A1  - Schippers, Jos H. M.
A1  - Welker, Annelie
A1  - Mieulet, Delphine
A1  - Guiderdoni, Emmanuel
A1  - Müller-Röber, Bernd
T1  - Transcription factor OsHsfC1b regulates salt tolerance and development in Oryza sativa ssp japonica
JF  - AoB PLANTS
N2  - Background and aims Salt stress leads to attenuated growth and productivity in rice. Transcription factors like heat shock factors (HSFs) represent central regulators of stress adaptation. Heat shock factors of the classes A and B are well established as regulators of thermal and non-thermal stress responses in plants; however, the role of class C HSFs is unknown. Here we characterized the function of the OsHsfC1b (Os01g53220) transcription factor from rice.
 Methodology We analysed the expression of OsHsfC1b in the rice japonica cultivars Dongjin and Nipponbare exposed to salt stress as well as after mannitol, abscisic acid (ABA) and H2O2 treatment. For functional characterization of OsHsfC1b, we analysed the physiological response of a T-DNA insertion line (hsfc1b) and two artificial micro-RNA (amiRNA) knock-down lines to salt, mannitol and ABA treatment. In addition, we quantified the expression of small Heat Shock Protein (sHSP) genes and those related to signalling and ion homeostasis by quantitative real-time polymerase chain reaction in roots exposed to salt. The subcellular localization of OsHsfC1b protein fused to green fluorescent protein (GFP) was determined in Arabidopsis mesophyll cell protoplasts.
 Principal results Expression of OsHsfC1b was induced by salt, mannitol and ABA, but not by H2O2. Impaired function of OsHsfC1b in the hsfc1b mutant and the amiRNA lines led to decreased salt and osmotic stress tolerance, increased sensitivity to ABA, and temporal misregulation of salt-responsive genes involved in signalling and ion homeostasis. Furthermore, sHSP genes showed enhanced expression in knock-down plants under salt stress. We observed retarded growth of hsfc1b and knock-down lines in comparison with control plants under non-stress conditions. Transient expression of OsHsfC1b fused to GFP in protoplasts revealed nuclear localization of the transcription factor.
 Conclusions OsHsfC1b plays a role in ABA-mediated salt stress tolerance in rice. Furthermore, OsHsfC1b is involved in the response to osmotic stress and is required for plant growth under non-stress conditions.
Y1  - 2012
U6  - https://doi.org/10.1093/aobpla/pls011
SN  - 2041-2851
IS  - 3
PB  - Oxford Univ. Press
CY  - Oxford
ER  - 
TY  - JOUR
A1  - Schmidt, Romy
A1  - Schippers, Jos H. M.
A1  - Mieulet, Delphine
A1  - Watanabe, Mutsumi
A1  - Hoefgen, Rainer
A1  - Guiderdoni, Emmanuel
A1  - Müller-Röber, Bernd
T1  - Salt-Rresponsive ERF1 is a negative regulator of grain filling and gibberellin-mediated seedling establishment in rice
JF  - Molecular plant
N2  - Grain quality is an important agricultural trait that is mainly determined by grain size and composition. Here, we characterize the role of the rice transcription factor (TF) SALT-RESPONSIVE ERF1 (SERF1) during grain development. Through genome-wide expression profiling and chromatin immunoprecipitation, we found that SERF1 directly regulates RICE PROLAMIN-BOX BINDING FACTOR (RPBF), a TF that functions as a positive regulator of grain filling. Loss of SERF1 enhances RPBF expression resulting in larger grains with increased starch content, while SERF1 overexpression represses RPBF resulting in smaller grains. Consistently, during grain filling, starch biosynthesis genes such as GRANULE-BOUND STARCH SYNTHASEI (GBSSI), STARCH SYNTHASEI (SSI), SSIIIa, and ADP-GLUCOSE PYROPHOSPHORYLASE LARGE SUBUNIT2 (AGPL2) are up-regulated in SERF1 knockout grains. Moreover, SERF1 is a direct upstream regulator of GBSSI. In addition, SERF1 negatively regulates germination by controlling RPBF expression, which mediates the gibberellic acid (GA)-induced expression of RICE AMYLASE1A (RAmy1A). Loss of SERF1 results in more rapid seedling establishment, while SERF1 overexpression has the opposite effect. Our study reveals that SERF1 represents a negative regulator of grain filling and seedling establishment by timing the expression of RPBF.
KW  - RPBF
KW  - rice
KW  - grain filling
KW  - germination
KW  - SERF1
KW  - gibberellic acid
Y1  - 2014
U6  - https://doi.org/10.1093/mp/sst131
SN  - 1674-2052
SN  - 1752-9867
VL  - 7
IS  - 2
SP  - 404
EP  - 421
PB  - Oxford Univ. Press
CY  - Oxford
ER  -