@article{MuellerStahlHennigRethwilmetal.1991, author = {M{\"u}ller, J. G. and Stahl-Hennig, Christiane and Rethwilm, Axel and Kneitz, C. and Kerkau, Thomas and Schmauser, B. and Schindler, C and Krenn, V. and terMeulen, V. and M{\"u}ller-Hermelink, H.K.}, title = {Morphologische Untersuchungen von Lymphknoten und Thymusin der Fr{\"u}hphase der SIV-Infektion bei Rhesus-Affen}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-47183}, year = {1991}, abstract = {Rhesus monkeys (M. mulatta) were i. v. infected with SIV mac251. Three phases of lymph node changes were observed. 1: physiological follicular hyperplasia (3 and 6 weeks p.i.). 2: Alterations of germinal centers: loss of follicular mantle zone, fragmentation or sclerosis (12 and 24 weeks p.i.). 3: Partial depletion of T-lymphocytes, accumulation of plasma cells, increased numbers of syncytial giant cells, hemophgocytosis in the sinuses (about 1 year p.i.). The thymus of the juvenile animals showed first changes 12 and 24 weeks after infection with focalloss of immature (and Ki-67 positive) cortical thymocytes, leading to severe accidental involution of the thymuses one year after infection and reduced numbers of Hassalls corpuscles. These investigations show the value of this animal model for the study of morphology and pathogenesis of AIDS.}, subject = {Affenimmundefizienzvirus}, language = {de} } @article{MuellerKrennSchindleretal.1993, author = {M{\"u}ller, J. G. and Krenn, V. and Schindler, C. and Czub, S. and Stahl-Henning, C. and Coulibaly, C. and Hunsmann, G. and Kneitz, C. and Kerkau, T. and Rethwilm, A. and ter Meulen, V. and M{\"u}ller-Hermelink, H. K.}, title = {Alterations of Thymus Cortical Epithelium and Interdigitating Dendritic Cells but No Increase of Thymocyte Cell Death in the Early Course of Simian Immunodeficiency Virus Infection}, series = {American Journal of Pathology}, volume = {143}, journal = {American Journal of Pathology}, number = {3}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-128250}, pages = {699-713}, year = {1993}, abstract = {The role of the thymus in the pathogenesis of simian acquired immunodeficiency syndrome was investigated in 18 juvenile rhesus monkeys (Macaca mulatta). The thymus was infected from the first week post-SIVmac inoculation, but the amount of virus-positive cells was very low « 1 in 1 04 T cells) as demonstrated by polymerase chain reaction and in situ hybridization. First morphological alteration was a narrowing of the cortex at 12 and 24 wpi. Morphometry revealed no increase of pyknotic T cells but a decrease of the proliferation rate andflow cytometry showed a reduction of the immature \(CD4^+/CD8^+\) double-positive T cells. Ultrastructural analysis revealed vacuolization, shrinkage, andfinally cytolysis of the cortical epithelial cells and the interdigitating dendritic cells. Immunofluorescence staining exhibited a widespread loss of cortical epithelial cells. This damage to the thymic microenvironment could explain the breakdown of the intrathymic T cell proliferation. It preceded fully developed simian acquired immunodeficiency syndrome and is therefore considered to play a major role in its pathogenesis.}, language = {en} } @article{MuellerKrennSchindleretal.1993, author = {M{\"u}ller, J. G. and Krenn, V. and Schindler, C. and Czub, S. and Stahl-Henning, C. and Coulibaly, C. and Hunsmann, G. and Kneitz, C. and Kerkau, Thomas and Rethwilm, Axel and terMeulen, Volker}, title = {Alterations of thymus cortical epithelium and interdigitating dendritic cells but no increase of thymocyte cell death in the early course of simian immunodeficiency virus infection}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-32583}, year = {1993}, abstract = {No abstract available}, language = {en} } @article{MuellerStahlHennigRethwilmetal.1991, author = {M{\"u}ller, JG and Stahl-Hennig, C. and Rethwilm, Axel and Kneitz, C. and Kerkau, T. and Schmauser, B. and Schindler, C. and Krenn, V. and terMeulen, V. and M{\"u}ller-Hermelink, HK}, title = {Morphologische Untersuchungen von Lymphknoten und Thymusin der Fr{\"u}hphase der SIV-Infektion bei Rhesus-Affen}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-80210}, year = {1991}, abstract = {Rhesus monkeys (M. mulatta) were i.v. infected with SIV mac251. Three phases of lymph node changes were observed. 1: physiological follicular hyperplasia (3 and 6 weeks p.i.). 2: Alterations of germinal centers: loss of follicular mande zone, fragmentation or sclerosis (12 and 24 weeks p.i.). 3: Partial depletion of T-lymphocytes, accumulation of plasma cells, increased numbers of syncytial giant cells, hemophgocytosis in the sinuses (ab out 1 year p.i.). The thymus of the juvenile animals showed first changes 12 and 24 weeks after infection with focalloss of immature (and Ki-67 positive) cortical thymocytes, leading to severe accidental involution of the thymuses one year after infection and reduced numbers of Hassalls corpuscles. These investigations show the value of this animal model for the study of morphology and pathogenesis of AIDS.}, subject = {Virologie}, language = {de} } @article{MuellerKrennCzubetal.1993, author = {M{\"u}ller, J. and Krenn, V. and Czub, S. and Schindler, C. and Kneitz, C. and Kerkau, T. and Stahl-Henning, C. and Coulibaly, C. and Hunsmann, G. and Rethwilm, Axel and ter Meulen, Volker and M{\"u}ller-Hermelink, H. K.}, title = {The thymus in SIV infection}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-80265}, year = {1993}, abstract = {no abstract available}, subject = {HIV-Infektion}, language = {en} }