TY  - JOUR
A1  - Barres, B. A.
A1  - Schmid, R.
A1  - Sendtner, Michael
A1  - Raff, Martin C.
T1  - Multiple extracellular signals are required for long-term oligodendrocyte survival
N2  - We showed previously that oligodendrocytes and their precursors require continuous signalling by protein trophic factors to avoid programmed cell death in culture. Here we show that three classes of such trophic factors promote oligodendrocyte survival in vitro: (1) insulin and insulin-like growth factors (IGFs), (2) neurotrophins, particularly neurotrophin-3 (NT -3), and (3) ciliary-neurotrophic factor (CNTF), leukemia inhibitory factor (LIF) and interleukin 6 (IL-6). A single factor, or combinations of factors within the same class, promote only short-term survival of oligodendrocytes and their precursors, while combinations of factors from different classes promote survival additively. Long-term survival of oligodendrocytes in vitro requires at least one factor from each class, suggesting that multiple signals may be required for long-term oligodendrocyte survival in vivo. We also show that CNTF promotes oligodendrocyte survival in vivo, that platelet-derived growth factor (PDGF) can promote the survival of oligodendrocyte precursors in vitro by acting on a novel, very high affinity PDGF receptor, and that, in addition to its effect on survival, NT-3 is a potent mitogen for oligodendrocyte precursor cells.
KW  - neurotrophins
KW  - programmed cell death
KW  - apoptosis
KW  - ciliary-neurotrophic factor
KW  - interleukin 6
KW  - insulin
KW  - insulin-likegrowth factor I
Y1  - 1993
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-42644
ER  - 
TY  - JOUR
A1  - Bartelheim, Kerstin
A1  - Nemes, Karolina
A1  - Seeringer, Angela
A1  - Kerl, Kornelius
A1  - Buechner, Jochen
A1  - Boos, Joachim
A1  - Graf, Norbert
A1  - Dürken, Matthias
A1  - Gerss, Joachim
A1  - Hasselblatt, Martin
A1  - Kortmann, Rolf-Dieter
A1  - Teichert von Luettichau, Irene
A1  - Nagel, Inga
A1  - Nygaard, Randi
A1  - Oyen, Florian
A1  - Quiroga, Eduardo
A1  - Schlegel, Paul-Gerhardt
A1  - Schmid, Irene
A1  - Schneppenheim, Reinhard
A1  - Siebert, Reiner
A1  - Solano-Paez, Palma
A1  - Timmermann, Beate
A1  - Warmuth-Metz, Monika
A1  - Frühwald, Michael Christoph
T1  - Improved 6-year overall survival in AT/RT - results of the registry study Rhabdoid 2007
JF  - Cancer Medicine
N2  - Atypical teratoid rhabdoid tumors (AT/RT) are characterized by mutations and subsequent inactivation of SMARCB1 (INI1, hSNF5), a predilection for very young children and an unfavorable outcome. The European Registry for rhabdoid tumors (EU‐RHAB) was established to generate a common European database and to establish a standardized treatment regimen as the basis for phase I/II trials. Thus, genetic analyses, neuropathologic and radiologic diagnoses, and a consensus treatment regimen were prospectively evaluated. From 2005 to 2009, 31 patients with AT/RT from four countries were recruited into the registry study Rhabdoid 2007 and treated with systemic and intraventricular chemotherapy. Eight patients received high‐dose chemotherapy, 23 radiotherapy, and 17 maintenance therapy. Reference evaluations were performed in 64% (genetic analyses, FISH, MLPA, sequencing) up to 97% (neuropathology, INI1 stain). Germ‐line mutations (GLM) were detected in 6/21 patients. Prolonged overall survival was associated with age above 3 years, radiotherapy and achievement of a complete remission. 6‐year overall and event‐free survival rates were 46% (±0.10) and 45% (±0.09), respectively. Serious adverse events and one treatment‐related death due to insufficiency of a ventriculo peritoneal shunt (VP‐shunt) and consecutive herniation were noted. Acquisition of standardized data including reference diagnosis and a standard treatment schedule improved data quality along with a survival benefit. Treatment was feasible with significant but manageable toxicity. Although our analysis is biased due to heterogeneous adherence to therapy, EU‐RHAB provides the best available basis for phase I/II clinical trials.
KW  - AT/RT
KW  - EU‐RHAB Registry
KW  - pediatric brain tumor
KW  - Rhabdoid 2007
Y1  - 2016
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-164799
VL  - 5
IS  - 8
ER  - 
TY  - JOUR
A1  - Bousquet, Jean
A1  - Anto, Josep M.
A1  - Bachert, Claus
A1  - Haahtela, Tari
A1  - Zuberbier, Torsten
A1  - Czarlewski, Wienczyslawa
A1  - Bedbrook, Anna
A1  - Bosnic‐Anticevich, Sinthia
A1  - Walter Canonica, G.
A1  - Cardona, Victoria
A1  - Costa, Elisio
A1  - Cruz, Alvaro A.
A1  - Erhola, Marina
A1  - Fokkens, Wytske J.
A1  - Fonseca, Joao A.
A1  - Illario, Maddalena
A1  - Ivancevich, Juan‐Carlos
A1  - Jutel, Marek
A1  - Klimek, Ludger
A1  - Kuna, Piotr
A1  - Kvedariene, Violeta
A1  - Le, LTT
A1  - Larenas‐Linnemann, Désirée E.
A1  - Laune, Daniel
A1  - Lourenço, Olga M.
A1  - Melén, Erik
A1  - Mullol, Joaquim
A1  - Niedoszytko, Marek
A1  - Odemyr, Mikaëla
A1  - Okamoto, Yoshitaka
A1  - Papadopoulos, Nikos G.
A1  - Patella, Vincenzo
A1  - Pfaar, Oliver
A1  - Pham‐Thi, Nhân
A1  - Rolland, Christine
A1  - Samolinski, Boleslaw
A1  - Sheikh, Aziz
A1  - Sofiev, Mikhail
A1  - Suppli Ulrik, Charlotte
A1  - Todo‐Bom, Ana
A1  - Tomazic, Peter‐Valentin
A1  - Toppila‐Salmi, Sanna
A1  - Tsiligianni, Ioanna
A1  - Valiulis, Arunas
A1  - Valovirta, Erkka
A1  - Ventura, Maria‐Teresa
A1  - Walker, Samantha
A1  - Williams, Sian
A1  - Yorgancioglu, Arzu
A1  - Agache, Ioana
A1  - Akdis, Cezmi A.
A1  - Almeida, Rute
A1  - Ansotegui, Ignacio J.
A1  - Annesi‐Maesano, Isabella
A1  - Arnavielhe, Sylvie
A1  - Basagaña, Xavier
A1  - D. Bateman, Eric
A1  - Bédard, Annabelle
A1  - Bedolla‐Barajas, Martin
A1  - Becker, Sven
A1  - Bennoor, Kazi S.
A1  - Benveniste, Samuel
A1  - Bergmann, Karl C.
A1  - Bewick, Michael
A1  - Bialek, Slawomir
A1  - E. Billo, Nils
A1  - Bindslev‐Jensen, Carsten
A1  - Bjermer, Leif
A1  - Blain, Hubert
A1  - Bonini, Matteo
A1  - Bonniaud, Philippe
A1  - Bosse, Isabelle
A1  - Bouchard, Jacques
A1  - Boulet, Louis‐Philippe
A1  - Bourret, Rodolphe
A1  - Boussery, Koen
A1  - Braido, Fluvio
A1  - Briedis, Vitalis
A1  - Briggs, Andrew
A1  - Brightling, Christopher E.
A1  - Brozek, Jan
A1  - Brusselle, Guy
A1  - Brussino, Luisa
A1  - Buhl, Roland
A1  - Buonaiuto, Roland
A1  - Calderon, Moises A.
A1  - Camargos, Paulo
A1  - Camuzat, Thierry
A1  - Caraballo, Luis
A1  - Carriazo, Ana‐Maria
A1  - Carr, Warner
A1  - Cartier, Christine
A1  - Casale, Thomas
A1  - Cecchi, Lorenzo
A1  - Cepeda Sarabia, Alfonso M.
A1  - H. Chavannes, Niels
A1  - Chkhartishvili, Ekaterine
A1  - Chu, Derek K.
A1  - Cingi, Cemal
A1  - Correia de Sousa, Jaime
A1  - Costa, David J.
A1  - Courbis, Anne‐Lise
A1  - Custovic, Adnan
A1  - Cvetkosvki, Biljana
A1  - D'Amato, Gennaro
A1  - da Silva, Jane
A1  - Dantas, Carina
A1  - Dokic, Dejan
A1  - Dauvilliers, Yves
A1  - De Feo, Giulia
A1  - De Vries, Govert
A1  - Devillier, Philippe
A1  - Di Capua, Stefania
A1  - Dray, Gerard
A1  - Dubakiene, Ruta
A1  - Durham, Stephen R.
A1  - Dykewicz, Mark
A1  - Ebisawa, Motohiro
A1  - Gaga, Mina
A1  - El‐Gamal, Yehia
A1  - Heffler, Enrico
A1  - Emuzyte, Regina
A1  - Farrell, John
A1  - Fauquert, Jean‐Luc
A1  - Fiocchi, Alessandro
A1  - Fink‐Wagner, Antje
A1  - Fontaine, Jean‐François
A1  - Fuentes Perez, José M.
A1  - Gemicioğlu, Bilun
A1  - Gamkrelidze, Amiran
A1  - Garcia‐Aymerich, Judith
A1  - Gevaert, Philippe
A1  - Gomez, René Maximiliano
A1  - González Diaz, Sandra
A1  - Gotua, Maia
A1  - Guldemond, Nick A.
A1  - Guzmán, Maria‐Antonieta
A1  - Hajjam, Jawad
A1  - Huerta Villalobos, Yunuen R.
A1  - Humbert, Marc
A1  - Iaccarino, Guido
A1  - Ierodiakonou, Despo
A1  - Iinuma, Tomohisa
A1  - Jassem, Ewa
A1  - Joos, Guy
A1  - Jung, Ki‐Suck
A1  - Kaidashev, Igor
A1  - Kalayci, Omer
A1  - Kardas, Przemyslaw
A1  - Keil, Thomas
A1  - Khaitov, Musa
A1  - Khaltaev, Nikolai
A1  - Kleine‐Tebbe, Jorg
A1  - Kouznetsov, Rostislav
A1  - Kowalski, Marek L.
A1  - Kritikos, Vicky
A1  - Kull, Inger
A1  - La Grutta, Stefania
A1  - Leonardini, Lisa
A1  - Ljungberg, Henrik
A1  - Lieberman, Philip
A1  - Lipworth, Brian
A1  - Lodrup Carlsen, Karin C.
A1  - Lopes‐Pereira, Catarina
A1  - Loureiro, Claudia C.
A1  - Louis, Renaud
A1  - Mair, Alpana
A1  - Mahboub, Bassam
A1  - Makris, Michaël
A1  - Malva, Joao
A1  - Manning, Patrick
A1  - Marshall, Gailen D.
A1  - Masjedi, Mohamed R.
A1  - Maspero, Jorge F.
A1  - Carreiro‐Martins, Pedro
A1  - Makela, Mika
A1  - Mathieu‐Dupas, Eve
A1  - Maurer, Marcus
A1  - De Manuel Keenoy, Esteban
A1  - Melo‐Gomes, Elisabete
A1  - Meltzer, Eli O.
A1  - Menditto, Enrica
A1  - Mercier, Jacques
A1  - Micheli, Yann
A1  - Miculinic, Neven
A1  - Mihaltan, Florin
A1  - Milenkovic, Branislava
A1  - Mitsias, Dimitirios I.
A1  - Moda, Giuliana
A1  - Mogica‐Martinez, Maria‐Dolores
A1  - Mohammad, Yousser
A1  - Montefort, Steve
A1  - Monti, Ricardo
A1  - Morais‐Almeida, Mario
A1  - Mösges, Ralph
A1  - Münter, Lars
A1  - Muraro, Antonella
A1  - Murray, Ruth
A1  - Naclerio, Robert
A1  - Napoli, Luigi
A1  - Namazova‐Baranova, Leyla
A1  - Neffen, Hugo
A1  - Nekam, Kristoff
A1  - Neou, Angelo
A1  - Nordlund, Björn
A1  - Novellino, Ettore
A1  - Nyembue, Dieudonné
A1  - O'Hehir, Robyn
A1  - Ohta, Ken
A1  - Okubo, Kimi
A1  - Onorato, Gabrielle L.
A1  - Orlando, Valentina
A1  - Ouedraogo, Solange
A1  - Palamarchuk, Julia
A1  - Pali‐Schöll, Isabella
A1  - Panzner, Peter
A1  - Park, Hae‐Sim
A1  - Passalacqua, Gianni
A1  - Pépin, Jean‐Louis
A1  - Paulino, Ema
A1  - Pawankar, Ruby
A1  - Phillips, Jim
A1  - Picard, Robert
A1  - Pinnock, Hilary
A1  - Plavec, Davor
A1  - Popov, Todor A.
A1  - Portejoie, Fabienne
A1  - Price, David
A1  - Prokopakis, Emmanuel P.
A1  - Psarros, Fotis
A1  - Pugin, Benoit
A1  - Puggioni, Francesca
A1  - Quinones‐Delgado, Pablo
A1  - Raciborski, Filip
A1  - Rajabian‐Söderlund, Rojin
A1  - Regateiro, Frederico S.
A1  - Reitsma, Sietze
A1  - Rivero‐Yeverino, Daniela
A1  - Roberts, Graham
A1  - Roche, Nicolas
A1  - Rodriguez‐Zagal, Erendira
A1  - Rolland, Christine
A1  - Roller‐Wirnsberger, Regina E.
A1  - Rosario, Nelson
A1  - Romano, Antonino
A1  - Rottem, Menachem
A1  - Ryan, Dermot
A1  - Salimäki, Johanna
A1  - Sanchez‐Borges, Mario M.
A1  - Sastre, Joaquin
A1  - Scadding, Glenis K.
A1  - Scheire, Sophie
A1  - Schmid‐Grendelmeier, Peter
A1  - Schünemann, Holger J.
A1  - Sarquis Serpa, Faradiba
A1  - Shamji, Mohamed
A1  - Sisul, Juan‐Carlos
A1  - Sofiev, Mikhail
A1  - Solé, Dirceu
A1  - Somekh, David
A1  - Sooronbaev, Talant
A1  - Sova, Milan
A1  - Spertini, François
A1  - Spranger, Otto
A1  - Stellato, Cristiana
A1  - Stelmach, Rafael
A1  - Thibaudon, Michel
A1  - To, Teresa
A1  - Toumi, Mondher
A1  - Usmani, Omar
A1  - Valero, Antonio A.
A1  - Valenta, Rudolph
A1  - Valentin‐Rostan, Marylin
A1  - Pereira, Marilyn Urrutia
A1  - van der Kleij, Rianne
A1  - Van Eerd, Michiel
A1  - Vandenplas, Olivier
A1  - Vasankari, Tuula
A1  - Vaz Carneiro, Antonio
A1  - Vezzani, Giorgio
A1  - Viart, Frédéric
A1  - Viegi, Giovanni
A1  - Wallace, Dana
A1  - Wagenmann, Martin
A1  - Wang, De Yun
A1  - Waserman, Susan
A1  - Wickman, Magnus
A1  - Williams, Dennis M.
A1  - Wong, Gary
A1  - Wroczynski, Piotr
A1  - Yiallouros, Panayiotis K.
A1  - Yusuf, Osman M.
A1  - Zar, Heather J.
A1  - Zeng, Stéphane
A1  - Zernotti, Mario E.
A1  - Zhang, Luo
A1  - Shan Zhong, Nan
A1  - Zidarn, Mihaela
T1  - ARIA digital anamorphosis: Digital transformation of health and care in airway diseases from research to practice
JF  - Allergy
N2  - Digital anamorphosis is used to define a distorted image of health and care that may be viewed correctly using digital tools and strategies. MASK digital anamorphosis represents the process used by MASK to develop the digital transformation of health and care in rhinitis. It strengthens the ARIA change management strategy in the prevention and management of airway disease. The MASK strategy is based on validated digital tools. Using the MASK digital tool and the CARAT online enhanced clinical framework, solutions for practical steps of digital enhancement of care are proposed.
KW  - ARIA
KW  - asthma
KW  - CARAT
KW  - digital transformation of health and care
KW  - MASK
KW  - rhinitis
Y1  - 2021
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-228339
VL  - 76
IS  - 1
SP  - 168
EP  - 190
ER  - 
TY  - JOUR
A1  - Erbelding-Denk, Claudia
A1  - Schroder, Johannes H.
A1  - Schartl, Manfred
A1  - Nanda, Indrajit
A1  - Schmid, Michael
A1  - Epplen, Jörg T.
T1  - Male polymorphism in Limia perugiae (Pisces: Poeciliidae)
N2  - The male-polymorphic poeciliid fish, Limia perugiae, a small teleostean endemic to the southeast of the Caribbean island Hispafiola, consists of three male size morphs with uniform females. Large males differentiate at a size va:rying between 25 and 38 mm; intermediate males, between 21 and 25 mm. Under competition, !arge males exhibit an elaborate courtship display, whereas small males show only a sneak-chase behavior. Intermediate males adapt their tactics to the respective competitors. However, all malemorphs can switch from courtship display to sneak-chase behavior. In large mating groups with four males of different size and five or six virgin females, large dominant a-males as weil as small subordinate \(\delta\)-males did not produce any offspring. Unexpectedly, all progeny were sired exclusively by the intemediate subordinate ß- and \(\gamma\)-males. Breeding experiments with the three male morphs can best be explained by a model of Y -linked genes for small and !arge size which are both suspended by the activity of an autosomal recessive repressor responsible for the development of intermediate males. The dominant allele of the recessive repressor, in either its homoorits heterozygous state, activates the Y-chromosomal genes for !arge or small size, respectively. Accordingly, intermediate males may produce male offspring of all size classes, depending on the presence of either the Y-linked gene or the autosomal repressor.
KW  - Physiologische Chemie
KW  - Poeciliid fish
KW  - male size polymorphism
KW  - reproductive success
Y1  - 1994
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-61573
ER  - 
TY  - JOUR
A1  - Herrmann, Johannes
A1  - Adam, Elisabeth Hannah
A1  - Notz, Quirin
A1  - Helmer, Philipp
A1  - Sonntagbauer, Michael
A1  - Ungemach-Papenberg, Peter
A1  - Sanns, Andreas
A1  - Zausig, York
A1  - Steinfeldt, Thorsten
A1  - Torje, Iuliu
A1  - Schmid, Benedikt
A1  - Schlesinger, Tobias
A1  - Rolfes, Caroline
A1  - Reyher, Christian
A1  - Kredel, Markus
A1  - Stumpner, Jan
A1  - Brack, Alexander
A1  - Wurmb, Thomas
A1  - Gill-Schuster, Daniel
A1  - Kranke, Peter
A1  - Weismann, Dirk
A1  - Klinker, Hartwig
A1  - Heuschmann, Peter
A1  - Rücker, Viktoria
A1  - Frantz, Stefan
A1  - Ertl, Georg
A1  - Muellenbach, Ralf Michael
A1  - Mutlak, Haitham
A1  - Meybohm, Patrick
A1  - Zacharowski, Kai
A1  - Lotz, Christopher
T1  - COVID-19 Induced Acute Respiratory Distress Syndrome — A Multicenter Observational Study
JF  - Frontiers in Medicine
N2  - Background: Proportions of patients dying from the coronavirus disease-19 (COVID-19) vary between different countries. We report the characteristics; clinical course and outcome of patients requiring intensive care due to COVID-19 induced acute respiratory distress syndrome (ARDS).
Methods: This is a retrospective, observational multicentre study in five German secondary or tertiary care hospitals. All patients consecutively admitted to the intensive care unit (ICU) in any of the participating hospitals between March 12 and May 4, 2020 with a COVID-19 induced ARDS were included.
Results: A total of 106 ICU patients were treated for COVID-19 induced ARDS, whereas severe ARDS was present in the majority of cases. Survival of ICU treatment was 65.0%. Median duration of ICU treatment was 11 days; median duration of mechanical ventilation was 9 days. The majority of ICU treated patients (75.5%) did not receive any antiviral or anti-inflammatory therapies. Venovenous (vv) ECMO was utilized in 16.3%. ICU triage with population-level decision making was not necessary at any time. Univariate analysis associated older age, diabetes mellitus or a higher SOFA score on admission with non-survival during ICU stay.
Conclusions: A high level of care adhering to standard ARDS treatments lead to a good outcome in critically ill COVID-19 patients.
KW  - COVID-19
KW  - ARDS (acute respiratory distress syndrome)
KW  - intensive care medicine
KW  - pandemia
KW  - Germany
Y1  - 2020
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-219834
SN  - 2296-858X
VL  - 7
ER  - 
TY  - JOUR
A1  - Matsuda, Yoichi
A1  - Uno, Yoshinobu
A1  - Kondo, Mariko
A1  - Gilchrist, Michael J.
A1  - Zorn, Aaron M.
A1  - Rokhsar, Daniel S.
A1  - Schmid, Michael
A1  - Taira, Masanori
T1  - A New Nomenclature of Xenopus laevis Chromosomes Based on the Phylogenetic Relationship to Silurana/Xenopus tropicalis
JF  - Cytogenetic and Genome Research
N2  - Xenopus laevis (XLA) is an allotetraploid species which appears to have undergone whole-genome duplication after the interspecific hybridization of 2 diploid species closely related to Silurana/Xenopus tropicalis (XTR). Previous cDNA fluorescence in situ hybridization (FISH) experiments have identified 9 sets of homoeologous chromosomes in X. laevis, in which 8 sets correspond to chromosomes 1-8 of X. tropicalis (XTR1-XTR8), and the last set corresponds to a fusion of XTR9 and XTR10. In addition, recent X. laevis genome sequencing and BAC-FISH experiments support this physiological relationship and show no gross chromosome translocation in the X. laevis karyotype. Therefore, for the benefit of both comparative cytogenetics and genome research, we here propose a new chromosome nomenclature for X. laevis based on the phylogenetic relationship and chromosome length, i.e. XLA1L, XLA1S, XLA2L, XLA2S, and so on, in which the numbering of XLA chromosomes corresponds to that in X. tropicalis and the postfixes ‘L' and ‘S' stand for ‘long' and ‘short' chromosomes in the homoeologous pairs, which can be distinguished cytologically by their relative size. The last chromosome set is named XLA9L and XLA9S, in which XLA9 corresponds to both XTR9 and XTR10, and hence, to emphasize the phylogenetic relationship to X. tropicalis, XLA9_10L and XLA9_10S are also used as synonyms.
KW  - BrdU replication banding pattern
KW  - homoeologous chromosomes
KW  - nomenclature
KW  - Xenopus laevis
KW  - Xenopus tropicalis
Y1  - 2015
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-196748
SN  - 1424-8581
SN  - 1424-859X
N1  - This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively.
VL  - 145
IS  - 3-4
ER  - 
TY  - JOUR
A1  - Nanda, Indrajit
A1  - Schartl, Manfred
A1  - Epplen, Jörg T.
A1  - Feichtinger, Wolfgang
A1  - Schmid, Michael
T1  - Primitive sex chromosomes in poeciliid fishes harbor simple repetitive DNA sequences
N2  - The demonstration ofthe chromosomal mode ofsex determinationvia genetic experiments as well as the absence of heteromorphic sex chromosomes affirm poeciliid fishes as a unique group among vertebrates that are endowed with the mostprimitive form of sex chromosornes. In many different taxa the evolutionary process involved in the differentiation ofadvanced sex chromosomes is outlined through sex specifically organized repetitive sequences. In this investigation hydridization of synthetic probes specific to genomic simple repeat motifs uncovers a sex-specific hybridization pattern in certain viviparaus fishes ofthe family Poeciliidae. The hybridization pattern together with specific staining ofthe constitutive heterochromatin by C-banding reveals heterogamety in males (Poecilia reticulata) as weil as in females (P. sphenops). In P. velifera, however, C-banding alone fails to unravel the heterogametic status. The female specific W-chromosome can be detected by simple repetitive sequence probes. Therefore, the principal significance of heterochromatization as a means of generating differentiated sex chromosomes is evident.
KW  - Physiologische Chemie
Y1  - 1993
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-61659
ER  - 
TY  - JOUR
A1  - Nanda, Indrajit
A1  - Schartl, Manfred
A1  - Feichtinger, Wolfgang
A1  - Epplen, Jörg T.
A1  - Schmid, Michael
T1  - Early stages of sex chromosome differentiation in fish as analysed by simple repetitive DNA sequences
N2  - Animal sex chromosome evolution has started on different occasions with a homologous pair of autosomes leading to morphologically differentiated gonosomes. In contrast to other vertebrate classes, among fishes cytologically dernonstrahle sex chromosomes are rare. In reptiles, certain motifs of simple tandemly repeated DNA sequences like (gata)\(_n\)/(gaca)\(_m\) are associated with the constitutive heterochromatin of sex chromosomes. In this study a panel of simple repetitive sequence probes was hybridized to restriction enzyme digested genomic DNA of poeciliid fishes. Apparent male heterogamety previously established by genetic experiments in Poecilia reticulata (guppy) was correlated with male-specific hybridization using the (GACA)\(_4\) probe. The (GATA)\(_4\) oligonucleotide identifies certain male guppies by a Y chromosomal polymorphism in the outbred population. In cantrast none of the genetically defined heterogametic situations in Xiphophorus could be verified consistently using the collection of simple repetitive sequence probes. Only individuals from particular populations produced sex-specific patterns of hybridization with (GATA)\(_4\). Additional poeciliid species (P. sphenops, P. velifera) harbour different sex-specifically organized simple repeat motifs. The observed sex-specific hybridization patterns were substantiated by banding analyses of the karyotypes and by in situ hybridization using the (GACA)\(_4\) probe.
KW  - Physiologische Chemie
Y1  - 1992
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-61715
ER  - 
TY  - JOUR
A1  - Notz, Quirin
A1  - Schmalzing, Marc
A1  - Wedekink, Florian
A1  - Schlesinger, Tobias
A1  - Gernert, Michael
A1  - Herrmann, Johannes
A1  - Sorger, Lena
A1  - Weismann, Dirk
A1  - Schmid, Benedikt
A1  - Sitter, Magdalena
A1  - Schlegel, Nicolas
A1  - Kranke, Peter
A1  - Wischhusen, Jörg
A1  - Meybohm, Patrick
A1  - Lotz, Christopher
T1  - Pro- and Anti-Inflammatory Responses in Severe COVID-19-Induced Acute Respiratory Distress Syndrome—An Observational Pilot Study
JF  - Frontiers in Immunology
N2  - Objectives
The severity of Coronavirus Disease 2019 (COVID-19) is largely determined by the immune response. First studies indicate altered lymphocyte counts and function. However, interactions of pro- and anti-inflammatory mechanisms remain elusive. In the current study we characterized the immune responses in patients suffering from severe COVID-19-induced acute respiratory distress syndrome (ARDS).


Methods
This was a single-center retrospective study in patients admitted to the intensive care unit (ICU) with confirmed COVID-19 between March 14th and May 28th 2020 (n = 39). Longitudinal data were collected within routine clinical care, including flow-cytometry of lymphocyte subsets, cytokine analysis and growth differentiation factor 15 (GDF-15). Antibody responses against the receptor binding domain (RBD) of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Spike protein were analyzed.


Results
All patients suffered from severe ARDS, 30.8% died. Interleukin (IL)-6 was massively elevated at every time-point. The anti-inflammatory cytokine IL-10 was concomitantly upregulated with IL-6. The cellular response was characterized by lymphocytopenia with low counts of CD8+ T cells, natural killer (NK) and naïve T helper cells. CD8+ T and NK cells recovered after 8 to 14 days. The B cell system was largely unimpeded. This coincided with a slight increase in anti-SARS-CoV-2-Spike-RBD immunoglobulin (Ig) G and a decrease in anti-SARS-CoV-2-Spike-RBD IgM. GDF-15 levels were elevated throughout ICU treatment.


Conclusions
Massively elevated levels of IL-6 and a delayed cytotoxic immune defense characterized severe COVID-19-induced ARDS. The B cell response and antibody production were largely unimpeded. No obvious imbalance of pro- and anti-inflammatory mechanisms was observed, with elevated GDF-15 levels suggesting increased tissue resilience.
KW  - Coronavirus Disease 2019
KW  - acute respiratory distress syndrome
KW  - Severe Acute Respiratory Syndrome Coronavirus 2
KW  - cytokines
KW  - inflammation
KW  - growth differentiation factor 15
KW  - immune response
Y1  - 2020
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-212815
SN  - 1664-3224
VL  - 11
ER  - 
TY  - JOUR
A1  - Schartl, Manfred
A1  - Erbelding-Denk, Claudia
A1  - Holter, Sabine
A1  - Nanda, Indrajit
A1  - Schmid, Michael
A1  - Schroder, Johannes H.
A1  - Epplen, Jörg T.
T1  - Reproductive failure of dominant males in the poeciliid fish Limia perugiae determined by DNA fingerprinting
N2  - Hierarchical structures among male indlviduals in a population are frequently reflected ln differences in aggressive and reproductive behavior and access to the females. In general, sodal dominance requires the Investments, which in turn then may have to be compensated for by high reproductive success. However, this hypothesls has so far only been sufficiently tested in small mating groups (one or two males with one or two females) due to the difficulties of determining paternity by conventional methods. DNA fingerprinting overcomes these problems by offering the possibility to determine genetic relationships and mating patterns within larger groups [Borke, T. (1989) Trends Ecol. Evol. 4, 139-144]. We show here that in the poecUiid fish Limia perugitu, in small matlng groups the dominant male has 8 mating success of 100%, whereas ln larger groups lts contribution to the offspring unexpectedly drops to zero.
KW  - Physiologische Chemie
KW  - reproductive success
KW  - sexual selection
KW  - size polymorpbism
KW  - sodal domlnance
KW  - simple repetitive sequences
Y1  - 1993
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-61643
ER  -