Kai‐Christian Sonntag

5.8k total citations · 1 hit paper
71 papers, 4.5k citations indexed

About

Kai‐Christian Sonntag is a scholar working on Molecular Biology, Cellular and Molecular Neuroscience and Cancer Research. According to data from OpenAlex, Kai‐Christian Sonntag has authored 71 papers receiving a total of 4.5k indexed citations (citations by other indexed papers that have themselves been cited), including 51 papers in Molecular Biology, 28 papers in Cellular and Molecular Neuroscience and 10 papers in Cancer Research. Recurrent topics in Kai‐Christian Sonntag's work include Pluripotent Stem Cells Research (16 papers), MicroRNA in disease regulation (10 papers) and Neurogenesis and neuroplasticity mechanisms (9 papers). Kai‐Christian Sonntag is often cited by papers focused on Pluripotent Stem Cells Research (16 papers), MicroRNA in disease regulation (10 papers) and Neurogenesis and neuroplasticity mechanisms (9 papers). Kai‐Christian Sonntag collaborates with scholars based in United States, Germany and South Korea. Kai‐Christian Sonntag's co-authors include Ole Isacson, Anna M. Krichevsky, Susan L. Andersen, Kenneth S. Kosik, Hyemyung Seo, Rosario Sánchez‐Pernaute, Jan Pruszak, Tsung‐Ung W. Woo, Yulei Wang and Heather C. Brenhouse and has published in prestigious journals such as Journal of Clinical Investigation, Journal of Neuroscience and SHILAP Revista de lepidopterología.

In The Last Decade

Kai‐Christian Sonntag

68 papers receiving 4.5k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Specific MicroRNAs Modulate Embryonic Stem Cell–Derived Neurogenesis

2005 562 citations Anna M. Krichevsky, Kai‐Christian Sonntag et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Kai‐Christian Sonntag United States	33	3.0k	1.6k	949	565	512	71	4.5k
Eulàlia Martı́ Spain	32	2.4k 0.8×	1.2k 0.7×	1.0k 1.1×	342 0.6×	361 0.7×	76	3.9k
Luciano Conti Italy	35	4.2k 1.4×	2.7k 1.6×	485 0.5×	690 1.2×	1.3k 2.5×	122	6.2k
Johan Jakobsson Sweden	34	3.8k 1.3×	1.1k 0.7×	646 0.7×	519 0.9×	573 1.1×	72	5.3k
Michael Kiebler Germany	41	5.7k 1.9×	1.6k 1.0×	1.3k 1.4×	186 0.3×	529 1.0×	84	7.1k
Kuo‐Fen Lee United States	36	2.7k 0.9×	2.8k 1.7×	889 0.9×	212 0.4×	1.2k 2.3×	52	7.0k
Moritz J. Rossner Germany	39	2.9k 1.0×	1.5k 0.9×	517 0.5×	339 0.6×	886 1.7×	115	6.1k
Xuekun Li China	34	5.2k 1.7×	952 0.6×	1.2k 1.3×	299 0.5×	698 1.4×	93	6.9k
Nicole Schaeren‐Wiemers Switzerland	40	2.3k 0.8×	1.6k 1.0×	295 0.3×	572 1.0×	1000 2.0×	81	5.2k
Joseph D. Dougherty United States	39	3.6k 1.2×	1.0k 0.6×	498 0.5×	256 0.5×	729 1.4×	134	5.8k
Kuo-Fen Lee United States	26	2.8k 0.9×	2.2k 1.3×	248 0.3×	300 0.5×	861 1.7×	29	6.4k

Countries citing papers authored by Kai‐Christian Sonntag

Since Specialization

Citations

This map shows the geographic impact of Kai‐Christian Sonntag'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 Kai‐Christian Sonntag with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Kai‐Christian Sonntag more than expected).

Fields of papers citing papers by Kai‐Christian Sonntag

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Kai‐Christian Sonntag. 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 Kai‐Christian Sonntag. The network helps show where Kai‐Christian Sonntag may publish in the future.

Co-authorship network of co-authors of Kai‐Christian Sonntag

This figure shows the co-authorship network connecting the top 25 collaborators of Kai‐Christian Sonntag. A scholar is included among the top collaborators of Kai‐Christian Sonntag 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 Kai‐Christian Sonntag. Kai‐Christian Sonntag is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Ryu, Woo‐In, Lucas R. Trambaiolli, Jun Liu, et al.. (2025). Interconnections of insulin/IGF‐1 signaling and autophagy abnormalities in Alzheimer's disease. Alzheimer s & Dementia. 21(7). e70099–e70099. 1 indexed citations

Koch, Jennifer, et al.. (2025). Developing a Rat Model for Bipolar Disorder. Journal of Visualized Experiments.

Ryu, Woo‐In, Bruce M. Cohen, & Kai‐Christian Sonntag. (2021). Hypothesis and Theory: Characterizing Abnormalities of Energy Metabolism Using a Cellular Platform as a Personalized Medicine Approach for Alzheimer’s Disease. Frontiers in Cell and Developmental Biology. 9. 697578–697578. 8 indexed citations

Jeong, Young‐Il, Taeyeon Kim, Eun Ju Hwang, et al.. (2020). Reactive oxygen species-sensitive nanophotosensitizers of aminophenyl boronic acid pinacol ester conjugated chitosan- g -methoxy poly(ethylene glycol) copolymer for photodynamic treatment of cancer. Biomedical Materials. 15(5). 55034–55034. 8 indexed citations

Sonntag, Kai‐Christian, Bin Song, Nayeon Lee, et al.. (2018). Pluripotent stem cell-based therapy for Parkinson’s disease: Current status and future prospects. Progress in Neurobiology. 168. 1–20. 93 indexed citations

Mauney, Sarah A., Tsung‐Ung W. Woo, & Kai‐Christian Sonntag. (2018). Cell Type-Specific Laser Capture Microdissection for Gene Expression Profiling in the Human Brain. Methods in molecular biology. 1723. 203–221. 4 indexed citations

Sonntag, Kai‐Christian, et al.. (2016). Limited predictability of postmortem human brain tissue quality by RNA integrity numbers. Journal of Neurochemistry. 138(1). 53–59. 32 indexed citations

Mauney, Sarah A., Charmaine Y. Pietersen, Kai‐Christian Sonntag, & Tsung‐Ung W. Woo. (2015). Differentiation of oligodendrocyte precursors is impaired in the prefrontal cortex in schizophrenia. Schizophrenia Research. 169(1-3). 374–380. 71 indexed citations

Briggs, Christine, et al.. (2015). Midbrain dopamine neurons in Parkinson׳s disease exhibit a dysregulated miRNA and target-gene network. Brain Research. 1618. 111–121. 91 indexed citations

10.

Pietersen, Charmaine Y., Sarah A. Mauney, Maribel P. Lim, et al.. (2014). Molecular Profiles of Pyramidal Neurons in the Superior Temporal Cortex in Schizophrenia. Journal of Neurogenetics. 28(1-2). 53–69. 65 indexed citations

11.

Pietersen, Charmaine Y., Sarah A. Mauney, Maribel P. Lim, et al.. (2014). Molecular Profiles of Parvalbumin-Immunoreactive Neurons in the Superior Temporal Cortex in Schizophrenia. Journal of Neurogenetics. 28(1-2). 70–85. 52 indexed citations

12.

Lowen, Steven B., Kai‐Christian Sonntag, Susan L. Andersen, et al.. (2013). Poster Session II-Tuesday. Neuropsychopharmacology. 38(S2). S273–S434. 5 indexed citations

13.

Šimunović, Filip, Ming Yi, Yulei Wang, et al.. (2008). Gene expression profiling of substantia nigra dopamine neurons: further insights into Parkinson's disease pathology. Brain. 132(7). 1795–1809. 289 indexed citations

14.

Andersen, Susan L., Lee Napierata, Heather C. Brenhouse, & Kai‐Christian Sonntag. (2008). Juvenile methylphenidate modulates reward‐related behaviors and cerebral blood flow by decreasing cortical D3 receptors. European Journal of Neuroscience. 27(11). 2962–2972. 35 indexed citations

15.

Sánchez‐Pernaute, Rosario, Hyojin Lee, Michaela Patterson, et al.. (2008). Parthenogenetic dopamine neurons from primate embryonic stem cells restore function in experimental Parkinson's disease. Brain. 131(8). 2127–2139. 61 indexed citations

16.

Sonntag, Kai‐Christian, David W. Emery, Sharon Germana, et al.. (2001). Tolerance to solid organ transplants through transfer of MHC class II genes. Journal of Clinical Investigation. 107(1). 65–71. 60 indexed citations

17.

Sonntag, Kai‐Christian, et al.. (2000). Assessment of Transduction Rates of Porcine Bone Marrow. Journal of Hematotherapy & Stem Cell Research. 9(5). 721–726.

18.

Sonntag, Kai‐Christian & Gholamreza Darai. (1995). Evolution of viral DNA-dependent RNA polymerases. Virus Genes. 11(2-3). 271–284. 13 indexed citations

19.

Sonntag, Kai‐Christian, Paul Schnitzler, Eugene V. Koonin, & Gholamreza Darai. (1994). Chilo iridescent virus encodes a putative helicase belonging to a distinct family within the “Dead/H” superfamily: Implications for the evolution of large DNA viruses. Virus Genes. 8(2). 151–158. 15 indexed citations

20.

Schnitzler, Paul, Kai‐Christian Sonntag, Matthias Müller, et al.. (1994). Insect iridescent virus type 6 encodes a polypeptide related to the largest subunit of eukaryotic RNA polymerase II. Journal of General Virology. 75(7). 1557–1567. 21 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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