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Ralph Brehm

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Sabine Günther; Karola Weider; Martin Bergmann; Daniela Fietz; Ralph Brehm
Effects of a murine germ cell-specific knockout of Connexin 43 on Connexin expression in testis and fertility.
Sarah Giese; Florian Guillou; Hamid Hossain; Melanie Markmann; Svetlin Tchatalbachev; Karola Weider; Martin Bergmann; Trinad Chakraborty; Klaus Failing; Ralph Brehm
Sertoli-cell-specific knockout of connexin 43 leads to multiple alterations in testicular gene expression in prepubertal mice.
Cornelia Fink; Roswitha Weigel; Ludger Fink; Jochen Wilhelm; Sabine Kliesch; Martina Zeiler; Martin Bergmann; Ralph Brehm
Claudin-11 is over-expressed and dislocated from the blood-testis barrier in Sertoli cells associated with testicular intraepithelial neoplasia in men.

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All Publications

2013: Sabine Günther; Karola Weider; Martin Bergmann; Daniela Fietz; Ralph Brehm
Effects of a murine germ cell-specific knockout of Connexin 43 on Connexin expression in testis and fertility.
Transgenic research 2013;22(3):631-41.
2012: Sarah Giese; Florian Guillou; Hamid Hossain; Melanie Markmann; Svetlin Tchatalbachev; Karola Weider; Martin Bergmann; Trinad Chakraborty; Klaus Failing; Ralph Brehm
Sertoli-cell-specific knockout of connexin 43 leads to multiple alterations in testicular gene expression in prepubertal mice.
Disease models & mechanisms 2012;5(6):895-913.
2009: Cornelia Fink; Roswitha Weigel; Ludger Fink; Jochen Wilhelm; Sabine Kliesch; Martina Zeiler; Martin Bergmann; Ralph Brehm
Claudin-11 is over-expressed and dislocated from the blood-testis barrier in Sertoli cells associated with testicular intraepithelial neoplasia in men.
Histochemistry and cell biology 2009;131(6):755-64.
2008: Christina Rüttinger; Martin Bergmann; Ludger Fink; Sandra Pesch; Klaus Seitz; Astrid Trautmann; Klaus Steger; Lutz Konrad; Ralph Brehm
Expression of connexin 43 in normal canine testes and canine testicular tumors.
Histochemistry and cell biology 2008;130(3):537-48.
2007: Katja Herde; Sonja Hartmann; Ralph Brehm; Olaf Kilian; Christian Heiss; Anne Hild; Volker Alt; Martin Bergmann; Reinhard Schnettler; Sabine Wenisch
Connexin 43 expression of foreign body giant cells after implantation of nanoparticulate hydroxyapatite.
Biomaterials 2007;28(33):4912-21.
2007: Isabella Gashaw; Oliver Dushaj; Rüdiger Behr; Katharina Biermann; Ralph Brehm; Herbert Rübben; Rainer Grobholz; Kurt W Schmid; Martin Bergmann; Elke Winterhager
Novel germ cell markers characterize testicular seminoma and fetal testis.
Molecular human reproduction 2007;13(10):721-7.
2007: Katharina Biermann; Lukas Heukamp; Klaus Steger; Hui Zhou; Folker E Franke; Violetta Sonnack; Ralph Brehm; Johannes Berg; Patrick J Bastian; Stefan C Muller; Lihua Wang-Eckert; Reinhard Buettner
Genome-wide expression profiling reveals new insights into pathogenesis and progression of testicular germ cell tumors.
Cancer genomics & proteomics 2007;4(5):359-67.
2007: Katharina Biermann; Lukas Heukamp; Klaus Steger; Hui Zhou; Folker E Franke; Ines Guetgemann; Violetta Sonnack; Ralph Brehm; Johannes Berg; Patrick J Bastian; Stefan C Müller; Lihua Wang-Eckert; Hubert Schorle; Reinhard Büttner
Gene expression profiling identifies new biological markers of neoplastic germ cells.
Anticancer research 2007;27(5A):3091-100.
2007: Ralph Brehm; Martina Zeiler; Christina Rüttinger; Katja Herde; Mark Kibschull; Elke Winterhager; Klaus Willecke; Florian Guillou; Charlotte Lécureuil; Klaus Steger; Lutz Konrad; Katharina Biermann; Klaus Failing; Martin Bergmann
A sertoli cell-specific knockout of connexin43 prevents initiation of spermatogenesis.
The American journal of pathology 2007;171(1):19-31.
2007: Ahmed E Zayed; M M M Abd-Elnaeim; abd elghaffar sary; Anne Hild; Ralph Brehm; Klaus Steger
Prenatal development of murine gonads with special reference to germ cell differentiation: a morphological and immunohistochemical study.
Andrologia 2007;39(3):93-100.
2007: Olufunmilade A Omisanjo; Katharina Biermann; Sonja Hartmann; Lukas Heukamp; Violetta Sonnack; Anne Hild; Ralph Brehm; Martin Bergmann; Wolfgang Weidner; Klaus Steger
DNMT1 and HDAC1 gene expression in impaired spermatogenesis and testicular cancer.
Histochemistry and cell biology 2007;127(2):175-81.
2007: Katharina Biermann; Lukas Heukamp; D Nettersheim; Klaus Steger; Hui Zhou; Folker E Franke; Ines Guetgemann; Violetta Sonnack; Ralph Brehm; J Berg; Patrick J Bastian; Stefan C Müller; L Wang-Eckert; Hubert Schorle; Reinhard Büttner
[Embryonal germ cells and germ cell tumors].
Verhandlungen der Deutschen Gesellschaft für Pathologie 2007;91():39-48.
2006: Cornelia Fink; Roswitha Weigel; Tanja Hembes; Heidrun Lauke-Wettwer; Sabine Kliesch; Martin Bergmann; Ralph Brehm
Altered expression of ZO-1 and ZO-2 in Sertoli cells and loss of blood-testis barrier integrity in testicular carcinoma in situ.
Neoplasia (New York, N.Y.) 2006;8(12):1019-27.
2006: Ralph Brehm; Christina Rüttinger; Petra Fischer; Isabella Gashaw; Elke Winterhager; Sabine Kliesch; Rainer M Bohle; Klaus Steger; Martin Bergmann
Transition from preinvasive carcinoma in situ to seminoma is accompanied by a reduction of connexin 43 expression in Sertoli cells and germ cells.
Neoplasia (New York, N.Y.) 2006;8(6):499-509.
2006: Ralph Brehm; Rodolfo Rey; Sabine Kliesch; Klaus Steger; Alexander Marks; Martin Bergmann
Mitotic activity of Sertoli cells in adult human testis: an immunohistochemical study to characterize Sertoli cells in testicular cords from patients showing testicular dysgenesis syndrome.
Anatomy and embryology 2006;211(3):223-36.
2006: Oksana Lekhkota; Ralph Brehm; Rolf Claus; Anna Wagner; Rainer M Bohle; Martin Bergmann
Cellular localization of estrogen receptor-alpha (ERalpha) and -beta (ERbeta) mRNA in the boar testis.
Histochemistry and cell biology 2006;125(3):259-64.
2006: Cornelia Fink; Tanja Hembes; Ralph Brehm; Roswitha Weigel; Cornelia Heeb; Christiane Pfarrer; Martin Bergmann; Monika Kressin
Specific localisation of gap junction protein connexin 32 in the gastric mucosa of horses.
Histochemistry and cell biology 2006;125(3):307-13.
2006: Katharina Pauls; Hubert Schorle; Wiebke Jeske; Ralph Brehm; Klaus Steger; Nicolas Wernert; Reinhard Büttner; Hui Zhou
Spatial expression of germ cell markers during maturation of human fetal male gonads: an immunohistochemical study.
Human reproduction (Oxford, England) 2006;21(2):397-404.
2005: Isabella Gashaw; Ruth Grümmer; L Klein-Hitpass; O Dushaj; Martin Bergmann; Ralph Brehm; Rainer Grobholz; Sabine Kliesch; Tanja Pascale Neuvians; K W Schmid; C von Ostau; Elke Winterhager
Gene signatures of testicular seminoma with emphasis on expression of ets variant gene 4.
Cellular and molecular life sciences : CMLS 2005;62(19-20):2359-68.
2005: Ralph Brehm; Klaus Steger
Regulation of Sertoli cell and germ cell differentation.
Advances in anatomy, embryology, and cell biology 2005;181():1-93.
2005: Petra Fischer; Ralph Brehm; Lutz Konrad; Sonja Hartmann; Sabine Kliesch; Rainer M Bohle; Martin Bergmann
Connexin 33: a rodent-specific member of the gap junction protein family?
Journal of andrology 2005;26(1):75-84.
2004: Judith Donner; Sabine Kliesch; Ralph Brehm; Martin Bergmann
From carcinoma in situ to testicular germ cell tumour.
APMIS : acta pathologica, microbiologica, et immunologica Scandinavica 2004;112(2):79-88.
2002: Ralph Brehm; Alexander Marks; Rodolfo Rey; Sabine Kliesch; Martin Bergmann; Klaus Steger
Altered expression of connexins 26 and 43 in Sertoli cells in seminiferous tubules infiltrated with carcinoma-in-situ or seminoma.
The Journal of pathology 2002;197(5):647-53.