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Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1997 2
1998 3
1999 3
2002 1
2003 3
2004 1
2006 1
2007 4
2008 2
2009 1
2010 3
2011 4
2012 3
2013 4
2014 3
2015 4
2016 4
2017 2
2018 2
2019 2
2020 0
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47 results
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Page 1
Dynamics, ultrastructure and gene expression of human in vitro organized testis cells from testicular sperm extraction biopsies.
von Kopylow K, Schulze W, Salzbrunn A, Schaks M, Schäfer E, Roth B, Schlatt S, Spiess AN. von Kopylow K, et al. Among authors: spiess an. Mol Hum Reprod. 2018 Mar 1;24(3):123-134. doi: 10.1093/molehr/gax070. Mol Hum Reprod. 2018. PMID: 29304256
The impact of sperm protamine deficiency and sperm DNA damage on human male fertility: a systematic review and meta-analysis.
Ni K, Spiess AN, Schuppe HC, Steger K. Ni K, et al. Among authors: spiess an. Andrology. 2016 Sep;4(5):789-99. doi: 10.1111/andr.12216. Epub 2016 May 27. Andrology. 2016. PMID: 27231200 Free article. Review.
Existing literature suggests evidence that protamine deficiency is related to DNA damage and male fertility. In this meta-analysis, we analyzed the relationship between the ratio of protamine-1 and protamine-2 with male fertility and the association of pro
Existing literature suggests evidence that protamine deficiency is related to DNA damage and male fertility. In this meta-analysis, w …
Human spermatogonial markers.
von Kopylow K, Spiess AN. von Kopylow K, et al. Among authors: spiess an. Stem Cell Res. 2017 Dec;25:300-309. doi: 10.1016/j.scr.2017.11.011. Epub 2017 Nov 15. Stem Cell Res. 2017. PMID: 29239848 Free article. Review.
The sperm protamine mRNA ratio as a clinical parameter to estimate the fertilizing potential of men taking part in an ART programme.
Rogenhofer N, Dansranjavin T, Schorsch M, Spiess A, Wang H, von Schönfeldt V, Cappallo-Obermann H, Baukloh V, Yang H, Paradowska A, Chen B, Thaler CJ, Weidner W, Schuppe HC, Steger K. Rogenhofer N, et al. Among authors: spiess a. Hum Reprod. 2013 Apr;28(4):969-78. doi: 10.1093/humrep/des471. Epub 2013 Jan 22. Hum Reprod. 2013. PMID: 23340056
STUDY QUESTION: Could the protamine-1 to protamine-2 mRNA ratio serve as a biomarker to estimate the fertilizing capacity of sperm from men taking part in an IVF/ICSI programme? ...Sperm cells were lysed, mRNA extracted, reverse transcribed and subjected to real-tim …
STUDY QUESTION: Could the protamine-1 to protamine-2 mRNA ratio serve as a biomarker to estimate the fertilizing capacity of s …
The DNA methylation profile of human spermatogonia at single-cell- and single-allele-resolution refutes its role in spermatogonial stem cell function and germ cell differentiation.
Fend-Guella DL, von Kopylow K, Spiess AN, Schulze W, Salzbrunn A, Diederich S, El Hajj N, Haaf T, Zechner U, Linke M. Fend-Guella DL, et al. Among authors: spiess an. Mol Hum Reprod. 2019 Jun 6;25(6):283-294. doi: 10.1093/molehr/gaz017. Mol Hum Reprod. 2019. PMID: 30892608
An evaluation of R2 as an inadequate measure for nonlinear models in pharmacological and biochemical research: a Monte Carlo approach.
Spiess AN, Neumeyer N. Spiess AN, et al. BMC Pharmacol. 2010 Jun 7;10:6. doi: 10.1186/1471-2210-10-6. BMC Pharmacol. 2010. PMID: 20529254 Free PMC article.
Algorithms for automated detection of hook effect-bearing amplification curves.
Burdukiewicz M, Spiess AN, Blagodatskikh KA, Lehmann W, Schierack P, Rödiger S. Burdukiewicz M, et al. Among authors: spiess an. Biomol Detect Quantif. 2018 Oct 16;16:1-4. doi: 10.1016/j.bdq.2018.08.001. eCollection 2018 Dec. Biomol Detect Quantif. 2018. PMID: 30560061 Free PMC article.
qPCR data analysis: Better results through iconoclasm.
Tellinghuisen J, Spiess AN. Tellinghuisen J, et al. Among authors: spiess an. Biomol Detect Quantif. 2019 Jun 5;17:100084. doi: 10.1016/j.bdq.2019.100084. eCollection 2019 Mar. Biomol Detect Quantif. 2019. PMID: 31194178 Free PMC article.
Highly purified spermatozoal RNA obtained by a novel method indicates an unusual 28S/18S rRNA ratio and suggests impaired ribosome assembly.
Cappallo-Obermann H, Schulze W, Jastrow H, Baukloh V, Spiess AN. Cappallo-Obermann H, et al. Among authors: spiess an. Mol Hum Reprod. 2011 Nov;17(11):669-78. doi: 10.1093/molehr/gar037. Epub 2011 May 18. Mol Hum Reprod. 2011. PMID: 21593214
Isolation and gene expression analysis of single potential human spermatogonial stem cells.
von Kopylow K, Schulze W, Salzbrunn A, Spiess AN. von Kopylow K, et al. Among authors: spiess an. Mol Hum Reprod. 2016 Apr;22(4):229-39. doi: 10.1093/molehr/gaw006. Epub 2016 Jan 20. Mol Hum Reprod. 2016. PMID: 26792870
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