Ralph Brehm

2.9k total citations
83 papers, 2.2k citations indexed

About

Ralph Brehm is a scholar working on Molecular Biology, Reproductive Medicine and Genetics. According to data from OpenAlex, Ralph Brehm has authored 83 papers receiving a total of 2.2k indexed citations (citations by other indexed papers that have themselves been cited), including 44 papers in Molecular Biology, 36 papers in Reproductive Medicine and 20 papers in Genetics. Recurrent topics in Ralph Brehm's work include Sperm and Testicular Function (36 papers), Connexins and lens biology (27 papers) and Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities (13 papers). Ralph Brehm is often cited by papers focused on Sperm and Testicular Function (36 papers), Connexins and lens biology (27 papers) and Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities (13 papers). Ralph Brehm collaborates with scholars based in Germany, United States and Egypt. Ralph Brehm's co-authors include Klaus Steger, Sabine Kliesch, Martin Bergmann, Martin Bergmann, Jonathan M. Gerber, Roswitha Weigel, Cornelia Fink, Katharina Biermann, Hubert Schorle and Julia Heinrich and has published in prestigious journals such as SHILAP Revista de lepidopterología, PLoS ONE and Biomaterials.

In The Last Decade

Ralph Brehm

81 papers receiving 2.2k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Ralph Brehm Germany 26 1.2k 826 420 399 283 83 2.2k
Martin Bergmann Germany 30 1.2k 0.9× 1.1k 1.4× 501 1.2× 322 0.8× 571 2.0× 74 2.7k
Dominique Segretain France 38 2.3k 1.9× 1.1k 1.3× 491 1.2× 176 0.4× 411 1.5× 79 3.4k
R.‐Marc Pelletier Canada 26 923 0.7× 1.1k 1.3× 315 0.8× 218 0.5× 507 1.8× 48 2.0k
Ramazan Demir Türkiye 32 948 0.8× 558 0.7× 242 0.6× 277 0.7× 436 1.5× 97 3.0k
Anna T. Grazul‐Bilska United States 37 1.3k 1.1× 630 0.8× 649 1.5× 209 0.5× 1.1k 4.0× 126 4.6k
Tetsuo Kunieda Japan 25 1.3k 1.0× 231 0.3× 806 1.9× 130 0.3× 296 1.0× 138 2.4k
Fumie Suzuki Japan 23 789 0.6× 752 0.9× 179 0.4× 245 0.6× 424 1.5× 44 1.9k
Jonathan LaMarre Canada 32 1.4k 1.1× 265 0.3× 262 0.6× 359 0.9× 414 1.5× 101 3.1k
David W. Silversides Canada 33 1.2k 1.0× 368 0.4× 983 2.3× 219 0.5× 436 1.5× 73 2.5k
L. Plöen Sweden 25 567 0.5× 928 1.1× 438 1.0× 317 0.8× 415 1.5× 90 1.8k

Countries citing papers authored by Ralph Brehm

Since Specialization
Citations

This map shows the geographic impact of Ralph Brehm's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Ralph Brehm with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ralph Brehm more than expected).

Fields of papers citing papers by Ralph Brehm

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ralph Brehm. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Ralph Brehm. The network helps show where Ralph Brehm may publish in the future.

Co-authorship network of co-authors of Ralph Brehm

This figure shows the co-authorship network connecting the top 25 collaborators of Ralph Brehm. A scholar is included among the top collaborators of Ralph Brehm based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Ralph Brehm. Ralph Brehm is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Jung, Klaus, et al.. (2023). Effects of a Sertoli cell-specific knockout of Connexin43 on maturation and proliferation of postnatal Sertoli cells. Differentiation. 134. 31–51. 2 indexed citations
2.
Schumacher, Valerié, Anaclet Ngezahayo, Daniela Begandt, et al.. (2023). Analysis of connexin 43, connexin 45 and N-cadherin in the human sertoli cell line FS1 and the human seminoma-like cell line TCam-2 in comparison with human testicular biopsies. BMC Cancer. 23(1). 232–232. 2 indexed citations
3.
Yogui, Débora Regina, Mário Henrique Alves, Josué Díaz‐Delgado, et al.. (2022). Ovarian Filariasis in a Wild Southern Tamandua (Tamanduatetradactyla; Mammalia: Myrmecophagidae). Pathogens. 11(8). 918–918. 1 indexed citations
4.
Burmester, Marion, et al.. (2021). Caco-2/HT29-MTX co-cultured cells as a model for studying physiological properties and toxin-induced effects on intestinal cells. PLoS ONE. 16(10). e0257824–e0257824. 65 indexed citations
5.
Distl, O., Martina Hoedemaker, Rüdiger Behr, et al.. (2020). Loss of Cx43 in Murine Sertoli Cells Leads to Altered Prepubertal Sertoli Cell Maturation and Impairment of the Mitosis-Meiosis Switch. Cells. 9(3). 676–676. 15 indexed citations
6.
Roßbach, Kristine, Klaus W.J. Wahle, Ralph Brehm, et al.. (2020). Histamine 2 Receptor Agonism and Histamine 4 Receptor Antagonism Ameliorate Inflammation in a Model of Psoriasis. Acta Dermato Venereologica. 100(19). adv00342–adv00342. 10 indexed citations
7.
Brehm, Ralph, et al.. (2017). Insulin signaling in various equine tissues under basal conditions and acute stimulation by intravenously injected insulin. Domestic Animal Endocrinology. 61. 17–26. 9 indexed citations
8.
Wilkens, Mirja R., et al.. (2016). Expression of Tight Junction Proteins and Cadherin 17 in the Small Intestine of Young Goats Offered a Reduced N and/or Ca Diet. PLoS ONE. 11(4). e0154311–e0154311. 9 indexed citations
9.
Sieme, Harald, et al.. (2015). Characterization of the equine blood–testis barrier during tubular development in normal and cryptorchid stallions. Theriogenology. 84(5). 763–772. 21 indexed citations
10.
Dierks, Claudia, et al.. (2013). Two-Exon Skipping within MLPH Is Associated with Coat Color Dilution in Rabbits. PLoS ONE. 8(12). e84525–e84525. 25 indexed citations
11.
12.
Carette, Diane, Jérôme Gilleron, Jim Dompierre, et al.. (2010). Major involvement of connexin 43 in seminiferous epithelial junction dynamics and male fertility. Developmental Biology. 346(1). 54–67. 96 indexed citations
13.
Brehm, Ralph, M. Zeiler, Katja Herde, et al.. (2007). A Sertoli Cell-Specific Knockout of Connexin43 Prevents Initiation of Spermatogenesis. American Journal Of Pathology. 171(1). 19–31. 191 indexed citations
14.
Gashaw, Isabella, Rüdiger Behr, Katharina Biermann, et al.. (2007). Novel germ cell markers characterize testicular seminoma and fetal testis. Molecular Human Reproduction. 13(10). 721–727. 55 indexed citations
15.
Herde, Katja, Sonja Hartmann, Ralph Brehm, et al.. (2007). Connexin 43 expression of foreign body giant cells after implantation of nanoparticulate hydroxyapatite. Biomaterials. 28(33). 4912–4921. 15 indexed citations
16.
Omisanjo, Olufunmilade, Katharina Biermann, Sonja Hartmann, et al.. (2006). DNMT1 and HDAC1 gene expression in impaired spermatogenesis and testicular cancer. Histochemistry and Cell Biology. 127(2). 175–181. 57 indexed citations
17.
Fink, Cornelia, et al.. (2006). Altered Expression of ZO-1 and ZO-2 in Sertoli Cells and Loss of Blood-Testis Barrier Integrity in Testicular Carcinoma In Situ. Neoplasia. 8(12). 1019–1027. 64 indexed citations
18.
Fischer, Petra, Ralph Brehm, Lutz Konrad, et al.. (2005). Connexin 33: A Rodent‐Specific Member of the Gap Junction Protein Family?. Journal of Andrology. 26(1). 75–84. 12 indexed citations
19.
Pauls, Katharina, Hubert Schorle, Ralph Brehm, et al.. (2005). Spatial expression of germ cell markers during maturation of human fetal male gonads: an immunohistochemical study. Human Reproduction. 21(2). 397–404. 87 indexed citations
20.
Kliesch, Sabine, et al.. (2004). From carcinoma in situ to testicular germ cell tumour. Apmis. 112(2). 79–88. 20 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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