57491
2021
2021
eng
169
175
7
Special Issue: Prevalence and predictors of teen dating violence: a European perspective
178
other
Wiley
Hoboken, New Jersey
1
2022-01-05
2021-11-21
--
Teen dating violence
New directions for child and adolescent development
from analyzing the problem to finding solutions
10.1002/cad.20441
34802180
1534-8687
1520-3247
outputup:dataSource:PubMed:2021
WOS:000747215000010
Krahé, B (corresponding author), Univ Potsdam, Dept Psychol, Karl Liebknecht Str 24-25, D-14476 Potsdam, Germany., krahe@uni-potsdam.de
Krahé, Barbara
2023-01-12T09:59:32+00:00
sword
importub
filename=package.tar
dfe36a822d398da1252ef56d439f98b6
2477108-9
1469706-3
Comment on: <a href=" https://doi.org/10.1002/cad.20437">https://doi.org/10.1002/cad.20437</a>
Comment in: <a href=" https://doi.org/10.1002/cad.20444">https://doi.org/10.1002/cad.20444</a>
CC-BY-NC - Namensnennung, nicht kommerziell 4.0 International
Barbara Krahé
Bildung und Erziehung
Medizin und Gesundheit
Referiert
Department Psychologie
Import
Hybrid Open-Access
60305
2020
2020
eng
S154
S155
2
14
other
Oxford Univ. Press
Oxford
1
2020-02-15
2020-02-15
--
Small intestinal inflammation but not colitis drives pro-inflammatory nutritional antigen-specific T-cell response
Background:
Inflammatory bowel disease (IBD) represents a dysregulation of the mucosal immune system. The pathogenesis of Crohn’s disease (CD) and ulcerative colitis (UC) is linked to the loss of intestinal tolerance and barrier function. The healthy mucosal immune system has previously been shown to be inert against food antigens. Since the small intestine is the main contact surface for antigens and therefore the immunological response, the present study served to analyse food-antigen-specific T cells in the peripheral blood of IBD patients.
Methods:
Peripheral blood mononuclear cells of CD, with an affected small intestine, and UC (colitis) patients, either active or in remission, were stimulated with the following food antigens: gluten, soybean, peanut and ovalbumin. Healthy controls and celiac disease patients were included as controls. Antigen-activated CD4+ T cells in the peripheral blood were analysed by a magnetic enrichment of CD154+ effector T cells and a cytometric antigen-reactive T-cell analysis (‘ARTE’ technology) followed by characterisation of the ef- fector response.
Results:
The effector T-cell response of antigen-specific T cells were compared between CD with small intestinal inflammation and UC where inflammation was restricted to the colon. Among all tested food antigens, the highest frequency of antigen-specific T cells (CD4+CD154+) was found for gluten. Celiac disease patients were included as control, since gluten has been identified as the disease- causing antigen. The highest frequency of gluten antigen-specific T cells was revealed in active CD when compared with UC, celiac disease on a gluten-free diet (GFD) and healthy controls. Ovalbuminspecific T cells were almost undetectable, whereas the reaction to soybean and peanut was slightly higher. But again, the strong- est reaction was observed in CD with small intestinal involvement compared with UC. Remarkably, in celiac disease on a GFD only
antigen-specific cells for gluten were detected. These gluten-specific T cells were characterised by up-regulation of the pro-inflammatory cytokines IFN-γ, IL-17A and TNF-α. IFN-g was exclusively elevated in CD patients with active disease. Gluten-specific T-cells expressing IL-17A were increased in all IBD patients. Furthermore, T cells of CD patients, independent of disease activity, revealed a high expression of the pro-inflammatory cytokine TNF-α.
Conclusion:
The ‘ARTE’-technique allows to analyse and quantify food antigen specific T cells in the peripheral blood of IBD patients indicating a potential therapeutic insight. These data provide evidence that small intestinal inflammation in CD is key for the development of a systemic pro-inflammatory effector T-cell response driven by food antigens.
Journal of Crohn's and Colitis
10.1093/ecco-jcc/jjz203.172
1873-9946
1876-4479
wos:2020
WOS:000518803400174
Rodríguez Sillke, Yasmina; Medical Department of Gastroenterology, Charité Universitätsmedizin Berlin, Berlin, Germany; Institute of Nutrition, University of Potsdam, Nuthetal, Germany
Rodríguez Sillke, Yasmina
2023-08-04T05:20:17+00:00
sword
importub
filename=package.tar
66a94fa25aa2d48d837cb970b6ac19dd
2389631-0
2390120-2
false
true
Yasmina Rodríguez Sillke
Michael Schumann
Donata Lissner
Frederica Branchi
Rainer Glauben
Britta Siegmund
Medizin und Gesundheit
Institut für Ernährungswissenschaft
Referiert
Import
60161
2020
2020
eng
3
156
other
Elsevier
Amsterdam [u.a.]
1
2020-09-02
2020-09-02
--
Obituary of George A.F. Roberts (1939-2018)
Reactive & functional polymers
10.1016/j.reactfunctpolym.2020.104711
1381-5148
1873-166X
outputup:dataSource:ScienceDirect:2020
104711
WOS:000581931000018
Peter, MG (corresponding author), Kudinghovener Str 31, D-53227 Bonn, Germany., Martin.Peter@uni-potsdam.de
Peter, Martin G.
2023-07-27T10:43:17+00:00
sword
importub
filename=package.tar
a63c9dd2413909e5ef76a2de2af82faf
2019384-1
1289938-0
Bruno Moerschbacher
Małgorzata Jaworska
Martin G. Peter
Chemie und zugeordnete Wissenschaften
Institut für Chemie
Referiert
Import
62198
2022
2022
eng
671
676, E1-E5
12
3
32
other
Cell Press
Cambridge, Mass.
1
2022-02-07
2022-02-07
--
Female self-incompatibility type in heterostylous Primula is determined by the brassinosteroid-inactivating cytochrome P450 CYP734A50
Most flowering plants are hermaphrodites, with flowers having both male and female reproductive organs. One widespread adaptation to limit self-fertilization is self-incompatibility (SI), where self-pollen fails to fertilize ovules.(1,2) In homomorphic SI, many morphologically indistinguishable mating types are found, although in heteromorphic SI, the two or three mating types are associated with different floral morphologies.(3-6) In heterostylous Primula, a hemizygous supergene determines a short-styled S-morph and a long-styled L-morph, corresponding to two different mating types, and full seed set only results from inter morph crosses.(7-9) Style length is controlled by the brassinosteroid (BR)-inactivating cytochrome P450 CYP734A50,(10) yet it remains unclear what defines the male and female incompatibility types. Here, we show that CYP734A50 also determines the female incompatibility type. Inactivating CYP734A50 converts short S-morph styles into long styles with the same incompatibility behavior as L-morph styles, and this effect can be mimicked by exogenous BR treatment. In vitro responses of S-and L-morph pollen grains and pollen tubes to increasing BR levels could only partly explain their different in vivo behavior, suggesting both direct and indirect effects of the different BR levels in S-versus L-morph stigmas and styles in controlling pollen performance. This BR-mediated SI provides a novel mechanism for preventing self-fertilization. The joint control of morphology and SI by CYP734A50 has important implications for the evolutionary buildup of the heterostylous syndrome and provides a straightforward explanation for why essentially all of the derived self-compatible homostylous Primula species are long homostyles.(11)
Current biology
10.1016/j.cub.2021.11.046
34906354
0960-9822
1879-0445
outputup:dataSource:WoS:2022
WOS:000753599300002
Lenhard, M (corresponding author), Univ Potsdam, Inst Biochem & Biol, Karl Liebknecht Str 24-25, D-14476 Potsdam, Germany., michael.lenhard@uni-potsdam.de
Deutsche Forschungsgemeinschaft [HI 2076/1-1]
Lenhard, Michael
2024-01-18T10:44:10+00:00
sword
importub
filename=package.tar
10a2f7c516c8b49c241454c72f690f37
2019214-9
1071731-6
false
true
Cuong Nguyen Huu
Sylvia Plaschil
Axel Himmelbach
Christian Kappel
Michael Lenhard
deu
swd
heteromorphic self-incompatibility
deu
swd
heterostyly
deu
swd
Primula forbesii
deu
swd
brassinosteroid
deu
swd
CYP734A50
deu
swd
supergene
deu
swd
pleiotropy
Biowissenschaften; Biologie
Institut für Biochemie und Biologie
Referiert
Import
58902
2020
2020
eng
4
1
8
other
BioMed Central
London
1
2020-05-25
2020-05-25
--
Editorial
Movement Ecology
thematic series "Integrating movement ecology with biodiversity research"
10.1186/s40462-020-00210-0
32509308
2051-3933
outputup:dataSource:WoS:2020
19
WOS:000537730300001
Jeltsch, Florian (corresponding author), Univ Potsdam, Plant Ecol & Nat Conservat, Muhlenberg 3, D-14476 Potsdam, Germany., jeltsch@uni-potsdam.de
Deutsche ForschungsgemeinschaftGerman Research Foundation (DFG) [DFG-GRK; 2118/1]
Jeltsch, Florian
2023-04-20T12:03:10+00:00
sword
importub
filename=package.tar
e39b47d3713ab244adabb45dafdec65d
2724975-X
false
true
CC-BY - Namensnennung 4.0 International
Florian Jeltsch
Volker Grimm
Biowissenschaften; Biologie
Institut für Biochemie und Biologie
Referiert
Import
Gold Open-Access
DOAJ gelistet
61337
2021
2021
eng
1
2
2
3992
18
other
MDPI
Basel
1
2021-03-05
2021-03-05
--
Correction: Associations between witnessing and perpetrating online hate in eight countries: The Buffering Effects of Problem-Focused Coping.
Kein Abstract vorhanden
International Journal Environmental Research and Public Health
10.3390/ijerph18052609
1661-7827
1660-4601
2609
<a href="https://doi.org/10.25932/publishup-50566">Zweitveröffentlichung in der Schriftenreihe Zweitveröffentlichungen der Universität Potsdam : Humanwissenschaftliche Reihe ; 865</a>
Sebstian Wachs
Universität Potsdam
2175195-X
false
false
CC-BY - Namensnennung 4.0 International
Sebastian Wachs
Michelle F. Wright
Ruthaychonnee Sittichai
Bildung und Erziehung
Referiert
Department Erziehungswissenschaft
Gold Open-Access
58646
2020
2020
eng
16156
16156
1
11
14
other
American Chemical Society
Washington, DC
1
2020-11-24
2020-11-24
--
Correction to 'Perfluorinated self-assembled monolayers enhance the stability and efficiency of inverted perovskite solar cells' (2020, 14 (2), 1445−1456)
ACS nano
10.1021/acsnano.0c08081
33166445
1936-0851
1936-086X
outputup:dataSource:WoS:2020
WOS:000595533800156
Kogikoski, S (corresponding author), Univ Potsdam, D-14776 Potsdam, Germany.; Kogikoski, S (corresponding author), State Univ Campinas UNICAMP, Inst Chem, Dept Analyt Chem, BR-13083970 Campinas, SP, Brazil.
Helmholtz Energy Alliance "Hybrid Photovoltaics"; Deutsche; Forschungsgemeinschaft (DFG)German Research Foundation (DFG); [182087777-SFB 951, 423749265-SPP 2196]; FAPESPFundacao de Amparo a; Pesquisa do Estado de Sao Paulo (FAPESP) [2018/17831-6]; Potsdam; Graduate School (PoGS); HI-SCORE research school; HyPerCells
Kogikoski, Sergio
2023-03-31T06:35:19+00:00
sword
importub
filename=package.tar
1b6dab4a20c21e0beeddc01f4751a519
2383064-5
2406853-6
Wolff, Christian M.
Abate, Antonio
Neher, Dieter
false
true
Christian Michael Wolff
Laura Canil
Carolin Rehermann
Ngoc Linh Nguyen
Fengshuo Zu
Maryline Ralaiarisoa
Pietro Caprioglio
Lukas Fiedler
Martin Stolterfoht
Sergio Kogikoski, Junior
Ilko Bald
Norbert Koch
Eva L. Unger
Thomas Dittrich
Antonio Abate
Dieter Neher
Physik
Institut für Physik und Astronomie
Institut für Chemie
Referiert
Import
61012
2020
2020
eng
R110
R111
2
3
30
other
Current Biology Ltd.
London
1
2020-02-03
2020-02-03
--
Ancient DNA reveals twenty million years of aquatic life in beavers
Xenikoudakis et al. report a partial mitochondrial genome of the extinct giant beaver Castoroides and estimate the origin of aquatic behavior in beavers to approximately 20 million years. This time estimate coincides with the extinction of terrestrial beavers and raises the question whether the two events had a common cause.
Current biology : CB
10.1016/j.cub.2019.12.041
32017876
0960-9822
1879-0445
outputup:dataSource:WoS:2020
WOS:000511287900007
Xenikoudakis, G (corresponding author), Univ Potsdam, Inst Biochem & Biol, D-14476 Potsdam, Germany.; Lerner, H (corresponding author), Earlham Coll, Joseph Moore Museum, Richmond, IN 47374 USA., geoxenik@gmail.com; hlerner@gmail.com
Xenikoudakis, Georgios
Lerner, Heather
2023-10-05T11:19:23+00:00
sword
importub
filename=package.tar
82505b7325a3b383515bca1298a2798a
2019214-9
1071731-6
false
true
Georgios Xenikoudakis
Mayeesha Ahmed
Jacob Colt Harris
Rachel Wadleigh
Johanna L. A. Paijmans
Stefanie Hartmann
Axel Barlow
Heather Lerner
Michael Hofreiter
Biowissenschaften; Biologie
Institut für Informatik und Computational Science
Institut für Biochemie und Biologie
Referiert
Import
59490
2023
2023
eng
9
Version 1.0, May 2023
other
1
2023-06-19
2023-06-19
--
Open Science Guidelines of the University of Potsdam
The Open Science Guidelines of the University of Potsdam were developed by a working group of the Senate Commission for Research and Young Academics (FNK) and approved by the Senate on 10.05.2023. The guidelines are published here with minor editorial changes.
10.25932/publishup-59490
urn:nbn:de:kobv:517-opus4-594900
AK 54410
German version: <a href="https://doi.org/10.25932/publishup-59489">https://doi.org/10.25932/publishup-59489</a>
CC-BY - Namensnennung 4.0 International
Wissen
open_access
Senat
Universität Potsdam
https://publishup.uni-potsdam.de/files/59490/Open-Science-Leitlinien_V1.02_en.pdf
59228
2020
2020
eng
111
114
4
2
5
other
Nature Publishing Group
London
1
2020-02-17
2020-02-17
--
Event-based models to understand the scale of the impact of extremes
Climate change entails an intensification of extreme weather events that can potentially trigger socioeconomic and energy system disruptions. As we approach 1 degrees C of global warming we should start learning from historical extremes and explicitly incorporate such events in integrated climate-economy and energy systems models.
Nature energy
10.1038/s41560-020-0562-4
2058-7546
outputup:dataSource:WoS:2020
WOS:000514052800002
Otto, C; Frieler, K (corresponding author), Potsdam Inst Climate Impact Res, Potsdam, Germany., christian.otto@pik-potsdam.de; katja.frieler@pik-potsdam.de
Otto, Christian
Frieler, Katja
2023-05-16T07:28:48+00:00
sword
importub
filename=package.tar
bf7cd3b0581f1b1a3b5270c57ce8a415
2847369-3
Christian Otto
Franziska Piontek
Matthias Kalkuhl
Katja Frieler
eng
uncontrolled
Climate-change impacts
eng
uncontrolled
Energy economics
eng
uncontrolled
Socioeconomic scenarios
Wirtschaft
Naturwissenschaften und Mathematik
Wirtschaftswissenschaften
Referiert
Potsdam Institute for Climate Impact Research (PIK) e. V.
Import
59016
2019
2019
eng
other
German Institute for Economic Research (DIW Berlin)
Berlin
1
2019-11-02
2019-11-02
--
Leben in der ehemaligen DDR
Zusatzfragebogen im Rahmen der Befragung "Leben in Deutschland 2018" / Living in the GDR
10.5684/soep.ddr18
@Miscsoepddr, author = Krawietz, Marian and Goebel, Jan and Albrecht, Sophia and Class, Fabian and Kohler, Ulrich, title = Leben in der ehemaligen DDR - Zusatzfragebogen im Rahmen der Befragung Leben in Deutschland 2018 / Living in the GDR, year = 2019, doi = 10.5684/soep.ddr18, collections = 17656, 17157, 375
md5:6ca43b79b2d63156dbf12e73dc711e74
2023-04-25T14:04:39+00:00
/tmp/phpYcrZOO
bibtex
6447ddf7dd6908.43367166
false
true
Marian Krawietz
Jan Goebel
Sophia Albrecht
Fabian Class
Ulrich Kohler
Soziologie, Anthropologie
Fachgruppe Soziologie
59019
2016
2016
eng
other
WZB - Wissenschaftszentrum Berlin für Sozialforschung
1
--
--
--
Quality of life in the european union and the candidate countries
Harmonized data file as the basis for comparative analysis of quality of life in the Candidate Countries and the European Union member states, based on seven different data sets, one Eurobarometer survey covering 13 Candidate Countries with an identical set of variables conducted in April 2002, the other six Standard Eurobarometer of different subjects and fielded in different years, each with another set of questions identical with the CC Eurobarometer. Selected aggregate indicators of quality of life ... describing the social situation in the EU15 and Candidate Countries.
harmonized eurobarometer datafile 1998-2002
10.7802/1209
@Misckeck16, author = Keck, Wolfgang and Kohler, Ulrich and Nauenburg, Ricarda, title = Quality of Life in the European Union and the Candidate Countries. Harmonized Eurobarometer Datafile 1998-2002, year = 2016, howpublished = GESIS Datorium, doi = 10.7802/1209, collections = 17656, 17157, 375
md5:2667d99f5df396b4cae546e7bf800fab
2023-04-25T14:11:11+00:00
/tmp/phpyuF8Fo
bibtex
6447df7fbcd557.90062465
false
true
CC-BY-SA - Namensnennung, Weitergabe zu gleichen Bedingungen 4.0 International
Wolfgang Keck
Ulrich Kohler
Ricarda Nauenburg
Soziologie, Anthropologie
Fachgruppe Soziologie
59013
2020
2020
eng
93
94
2
2
14
other
Konstanz
1
2020-06-04
2020-06-04
--
Editorial: Survey Research Methods during the COVID-19 Crisis
Survey Research Methods
10.18148/srm/2020.v14i2.7769
1864-3361
@articlekohler20a, author = Kohler, Ulrich, year = 2020, title = Editorial: Survey Research Methods during the COVID-19 Crisis, journal = Survey Research Methods, volume = 14, number = 2, pages = 93–94, doi = 10.18148/srm/2020.v14i2.7769, collections = 17656, 17157, 375
md5:a06f7f449d192464cbddd7dfc68b6bd1
2023-04-25T13:57:18+00:00
/tmp/phpdCvdQn
bibtex
6447dc3e8c6603.31096877
2269140-6
false
true
Ulrich Kohler
eng
uncontrolled
COVID-19
eng
uncontrolled
Survey Research Methods
Soziologie, Anthropologie
Fachgruppe Soziologie
Hybrid Open-Access
59006
2023
2023
eng
other
American Medical Association
Chicago, Ill.
1
2023-04-17
2023-04-17
--
Novel estimates of mortality associated with poverty in the U.S.
The US perennially has a far higher poverty rate than peer-rich democracies.1 This high poverty rate in the US presents an enormous challenge to population health given that considerable research demonstrates that being in poverty is bad for one’s health.2 Despite valuable contributions of prior research on income and mortality, the quantity of mortality associated with poverty in the US remains uknown. In this cohort study, we estimated the association between poverty and mortality and quantified the proportion and number of deaths associated with poverty.
The journal of the American Medical Association : JAMA
10.1001/jamainternmed.2023.0276
0254-9077
1538-3598
@Articlebrady23, author = Brady, David and Kohler, Ulrich and Zheng, Hui, year = 2023, title = Novel estimates of mortality associated with poverty in the U.S., journal = Journal of the American Medical Association – Internal Medicine, doi = 10.1001/jamainternmed.2023.0276, collections = 17656, 17157, 375
md5:3709274762150471fb75928bb5cf0e22
2023-04-25T13:37:49+00:00
/tmp/php5SQbUS
bibtex
6447d7ad474213.31748764
2958-0
2018410-4
false
true
David Brady
Ulrich Kohler
Hui Zheng
Soziologie, Anthropologie
Referiert
Fachgruppe Soziologie
56934
2020
2020
eng
S3
S3
1
42
other
Human Kinetics Publishers
Champaign
1
2020-08-01
2020-08-01
--
The face of affect and exertion
Journal of sport & exercise psychology
automated facial action analysis to decode the flow of experience during exercise
0895-2779
1543-2904
outputup:dataSource:WoS:2020
WOS:000557622200011
sinika.timme@uni-potsdam.de
Timme, Sinika
2022-12-01T11:50:49+00:00
sword
importub
filename=package.tar
f25dd38343987df1e25070f6c658f37b
623100-7
2069181-6
Sinika Timme
Medizin und Gesundheit
Referiert
Department Sport- und Gesundheitswissenschaften
Import
Hybrid Open-Access
58775
2020
2020
eng
545
566
22
3
25
other
Routledge, Taylor & Francis Group
Philadelphia, Pa. [u.a]
1
2020-02-10
2020-02-10
--
Europeanisation versus Euroscepticism
Several overlapping crises which affected the EU during the past ten years have recently aggravated. Especially the progressing refugee crisis, the persisting financial crisis and geopolitical turmoil in the EU's neighbourhood contributed to the rise of anti-EU movements and diverse articulations of Euroscepticism. Although public opinion and mainstream political analysis have easily identified right-wing populism as one of the most important drivers, it is still doubtful if it can be equated with Euroscepticism without further ado. To date it is by no means clear how and where Euroscepticism exactly originates.
Geopolitics
do borders matter?
10.1080/14650045.2020.1723964
1465-0045
1557-3028
outputup:dataSource:WoS:2020
WOS:000513437100001
Bürkner, HJ (corresponding author), Leibniz Inst Res Soc & Space, Flakenstr 29-31, D-15537 Erkner, Germany., Hans-Joachim.Buerkner@leibniz-irs.de
Bürkner, Hans-Joachim
2023-04-13T09:34:04+00:00
sword
importub
filename=package.tar
46b742a8db40f33167b98d91ca6e23ac
2094935-2
1481797-4
false
true
Hans-Joachim Bürkner
Sozialwissenschaften
Referiert
Institut für Umweltwissenschaften und Geographie
Import
Bronze Open-Access
58642
2020
2020
eng
E1
E2
2
1
126
other
Lippincott Williams & Wilkins
Baltimore, Md.
1
2020-01-02
2020-01-02
--
Blood flow matters in a zebrafish model of cerebral cavernous malformations
Circulation research : an official journal of the American Heart Association
10.1161/CIRCRESAHA.119.316286
31895666
0009-7330
1524-4571
outputup:dataSource:WoS:2020
WOS:000505193500001
Seyfried, Salim (corresponding author), Potsdam Univ, Inst Biochem & Biol, Potsdam, Germany.; Abdelilah-Seyfried, S (corresponding author), Hannover Med Sch, Inst Mol Biol, Hannover, Germany.
Excellence cluster REBIRTH [SFB958]; Deutsche Forschungsgemeinschaft; (DFG)German Research Foundation (DFG) [SE2016/7-2, SE2016/10-1]; DZHK
Seyfried, Salim
2023-03-31T05:24:13+00:00
sword
importub
filename=package.tar
70cc92627ea27a12ad418340321795a6
1467838-X
80100-8
false
true
Salim Seyfried
Claudia Jasmin Rödel
Biowissenschaften; Biologie
Institut für Biochemie und Biologie
Referiert
Import
Bronze Open-Access
58233
2020
2020
eng
1
7
7
3
32
other
Berghahn Books
Oxford [u.a.]
1
2020-09-01
2020-09-01
--
Fortune, felicity and happiness in the early modern period
Critical survey : CS
introduction
10.3167/cs.2020.320301
0011-1570
1752-2293
outputup:dataSource:WoS:2020
WOS:000551952300001
Röder, K (corresponding author), Univ Potsdam, English Literature & Culture, Potsdam, Germany., kroeder@uni-potsdam.de; csinger@mail.uni-paderborn.de
Röder, Katrin
2023-03-03T08:11:48+00:00
sword
importub
filename=package.tar
1ebbfb46bd82527f4a54279c586c907d
2066201-4
280646-0
false
true
Katrin Röder
Christoph Singer
Englisch, Altenglisch
Institut für Anglistik und Amerikanistik
Referiert
Import
Bronze Open-Access
56936
2020
2020
eng
790
790
1
17
52
other
Lippincott Williams & Wilkins
Philadelphia
1
2020-12-24
2020-12-24
--
Feasibility of open low-field MRI measurements in adolescent athletes with spondylolisthesis
PURPOSE: To determine the feasibility of upright compared to supine MRI measurements to determine characteristics of the lumbar spine in AA with spondylolisthesis.
METHODS: Ten AA (n=10; m/f: 4/6; 14.5±1.7y; 163±7cm; 52±8kg) from various sports, diagnosed with spondylolisthesis grade I-II Meyerding confirmed by x-ray in standing lateral view, were included. Open low-field MRI images (0.25 Tesla) in upright (82°) and supine (0°) position were evaluated by two observers. Medical imaging software was used to measure the anterior translation (AT, mm), lumbosacral joint angle (LSJA, °) and lordosis angle (LA, °). Reliability was analyzed by the intra-rater correlation coefficient (ICC) and standard error of measurements (SEM).
RESULTS: Due to motion artifacts during upright position, measures of three participants had to be excluded. Between observers, AT ranged from 4.2±2.7mm to 5.5±1.9mm (ICC=0.94, SEM=0.6mm) in upright and from 4.9±2.4mm to 5.9±3.0mm (ICC=0.89, SEM=0.9mm) in supine position. LSJA varied from 5.1±2.2° to 7.3±1.5° (ICC=0.54, SEM=1.5°) in upright and from 9.8±2.5° to 10±2.4° (ICC=0.73, SEM=1.1°) in supine position. LA differed from 58.8±14.6° to 61.9±6° (ICC=0.94, SEM=1.19°) in upright and from 51.9±11.7° to 52.6±11.1° (ICC=0.98, SEM=1.59°) in supine position.
CONCLUSIONS: Determination of AT and LA showed good to excellent reliability in both, upright and supine position. In contrast, reliability of LSJA had only moderate to good correlation
between observers and should therefore be interpreted with caution. However, motion artifacts should be taken into consideration during upright imaging procedures.
Medicine and science in sports and exercise : official journal of the American College of Sports Medicine
0195-9131
1530-0315
10.1249/01.mss.0000683832.74059.9d
wos:2020
American-College-of-Sports-Medicine (ACSM) Virtual Conference
2020
WOS:000590026303218
ELECTR NETWORK
joost.theresa@gmail.com
2022-12-01T12:22:09+00:00
sword
importub
filename=package.tar
64cfa550e3a6303e4e40ccd10aff2794
Brecht, Pia
Mayer, Frank
Cassel, Michael
2031167-9
603994-7
false
true
Theresa Anna Joost
Pia Brecht
Frank Mayer
Michael Cassel
Medizin und Gesundheit
Referiert
Department Sport- und Gesundheitswissenschaften
Import
56814
2020
2020
eng
97
97
1
17
52
other
Lippincott Williams & Wilkins
Philadelphia
1
2020-12-24
2020-12-24
--
Side comparison of knee muscle activities in response to perturbed walking of unilateral ankle instability
Acute ankle sprain leads in 40% of all cases to chronic ankle instability (CAI). CAI is related to a variety of motor adaptations at the lower extremities. Previous investigations identified increased muscle activities while landing in CAI compared to healthy control participants. However, it remains unclear whether muscular alterations at the knee muscles are limited to the involved (unstable) ankle or are also present at the uninvolved leg. The latter might potentially indicate a risk of ankle sprain or future injury on the uninvolved leg. Purpose: To assess if there is a difference of knee muscle activities between the involved and uninvolved leg in participants with CAI during perturbed walking. Method: 10 participants (6 females; 4 males; 26±4 years; 169±9 cm; 65±7 kg) with unilateral CAI walked on a split-belt treadmill (1m/s) for 5 minutes of baseline walking and 6 minutes of perturbed walking (left and right side, each 10 perturbations). Electromyography (EMG) measurements were performed at biceps femoris (BF) and rectus femoris (RF). EMG amplitude (RMS; normalized to MVIC) were analyzed for 200ms pre-heel contact (Pre200), 100ms post heel contact (Post100) and 200ms after perturbation (Pert200). Data was analyzed by paired t-test/Wilcoxon test based on presence or absence of normal distribution (Bonferroni adjusted α level p≤ 0.0125). Results: No statistical difference was found between involved and uninvolved leg for RF (Pre200: 4±2% and 11± 22%, respectively, p= 0.878; Post100: 10± 5 and 18±31%, p=0.959; Pert200: 6±3% and 13±24%, p=0.721) as well as for BF (Pre200: 12±7% and 11±6, p=0.576; Post100: 10±7% and 9±7%, p=0.732; Pert200: 7±4 and 7±7%, p=0.386). Discussion: No side differences in muscle activity could be revealed for assessed feedforward and feedback responses (perturbed and unperturbed) in unilateral CAI. Reduced inter-individual variability of muscular activities at the involved leg might indicate a rather stereotypical response pattern. It remains to be investigated, whether muscular control at the knee is not affected by CAI, or whether both sides adapted in a similar style to the chronic condition at the ankle.
Medicine and science in sports and exercise : MSSE
0195-9131
1530-0315
10.1249/01.mss.0000671088.10003.6b
wos:2020
American-College-of-Sports-Medicine (ACSM) Virtual Conference
2020
WOS:000590026300273
ELECTR NETWORK, American-College-of-Sports-Medicine (ACSM)
alexandra.nair@hotmail.fr
2022-11-25T06:31:26+00:00
sword
importub
filename=package.tar
e511287fa540270c5fbbbb0ce5e0c151
2031167-9
603994-7
Alexandra Nair
Chiao-I Lin
Mina Khajooei
Mika Heikkila
Tilman Engel
Frank Mayer
Medizin und Gesundheit
Referiert
Department Sport- und Gesundheitswissenschaften
Import