Olli Kärkkäinen

2.0k total citations · 1 hit paper
70 papers, 1.3k citations indexed

About

Olli Kärkkäinen is a scholar working on Molecular Biology, Physiology and Cellular and Molecular Neuroscience. According to data from OpenAlex, Olli Kärkkäinen has authored 70 papers receiving a total of 1.3k indexed citations (citations by other indexed papers that have themselves been cited), including 29 papers in Molecular Biology, 24 papers in Physiology and 12 papers in Cellular and Molecular Neuroscience. Recurrent topics in Olli Kärkkäinen's work include Metabolomics and Mass Spectrometry Studies (17 papers), Diet and metabolism studies (14 papers) and Neurotransmitter Receptor Influence on Behavior (10 papers). Olli Kärkkäinen is often cited by papers focused on Metabolomics and Mass Spectrometry Studies (17 papers), Diet and metabolism studies (14 papers) and Neurotransmitter Receptor Influence on Behavior (10 papers). Olli Kärkkäinen collaborates with scholars based in Finland, Sweden and United States. Olli Kärkkäinen's co-authors include Kati Hanhineva, Ville Koistinen, Seppo Auriola, Nathalie M. Delzenne, Sophie Layé, Quentin Leyrolle, Hany Ahmed, Marko Lehtonen, Antti Iivanainen and Tiina Pessa‐Morikawa and has published in prestigious journals such as SHILAP Revista de lepidopterología, American Journal of Clinical Nutrition and Scientific Reports.

In The Last Decade

Olli Kärkkäinen

65 papers receiving 1.3k 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.

Microbiota-derived metabolites as drivers of gut–brain communication

2022 239 citations Hany Ahmed, Quentin Leyrolle et al. Gut Microbes profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Olli Kärkkäinen Finland	19	740	361	149	121	105	70	1.3k
Daniel Ortuño‐Sahagún Mexico	23	627 0.8×	341 0.9×	76 0.5×	53 0.4×	126 1.2×	83	1.8k
Michelle Murphy United States	9	690 0.9×	357 1.0×	197 1.3×	65 0.5×	60 0.6×	12	1.8k
María Dolores Maldonado y Aibar Spain	18	323 0.4×	342 0.9×	147 1.0×	86 0.7×	58 0.6×	34	1.8k
Joana C. d’Avila Brazil	19	730 1.0×	172 0.5×	107 0.7×	185 1.5×	72 0.7×	32	1.8k
Venkatesh L. Hegde United States	22	504 0.7×	163 0.5×	107 0.7×	45 0.4×	107 1.0×	44	2.1k
Christoph Rummel Germany	26	439 0.6×	366 1.0×	316 2.1×	69 0.6×	55 0.5×	81	1.9k
Ashraf Virmani Italy	23	738 1.0×	367 1.0×	64 0.4×	203 1.7×	60 0.6×	65	1.8k
Adrian McCann Norway	22	468 0.6×	444 1.2×	176 1.2×	206 1.7×	89 0.8×	87	1.6k
Marta Sochocka Poland	17	670 0.9×	614 1.7×	329 2.2×	81 0.7×	50 0.5×	37	1.8k
Anna V. Golubeva Ireland	20	975 1.3×	507 1.4×	380 2.6×	65 0.5×	32 0.3×	44	1.6k

Countries citing papers authored by Olli Kärkkäinen

Since Specialization

Citations

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

Fields of papers citing papers by Olli Kärkkäinen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Olli Kärkkäinen. 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 Olli Kärkkäinen. The network helps show where Olli Kärkkäinen may publish in the future.

Co-authorship network of co-authors of Olli Kärkkäinen

This figure shows the co-authorship network connecting the top 25 collaborators of Olli Kärkkäinen. A scholar is included among the top collaborators of Olli Kärkkäinen 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 Olli Kärkkäinen. Olli Kärkkäinen 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

Amadieu, Camille, Hany Ahmed, Sophie Leclercq, et al.. (2025). Effect of inulin supplementation on fecal and blood metabolome in alcohol use disorder patients: A randomised, controlled dietary intervention. Clinical Nutrition ESPEN. 66. 361–371. 1 indexed citations

Lehtonen, Marko, et al.. (2025). Alterations in the Plasma Metabolome Associated With Maternal Smoking During the First Trimester and Foetal Growth. Basic & Clinical Pharmacology & Toxicology. 136(5). e70037–e70037. 1 indexed citations

Luykx, Jurjen J., Olli Kärkkäinen, Antti Tanskanen, et al.. (2025). Long term safety of ADHD medication in patients with schizophrenia spectrum disorders. Molecular Psychiatry. 30(10). 4859–4867.

Lehtonen, Marko, Mika Martiskainen, Jari Tiihonen, et al.. (2025). Metabolic Alterations in Human Post‐Mortem Frontal Cortex and Cerebrospinal Fluid Associated With High Levels of Nicotine Metabolite Cotinine. Addiction Biology. 30(6). e70064–e70064.

Salonen, Anne, Olli Kärkkäinen, Ville Koistinen, et al.. (2025). Metabolic profiles of meconium in preeclamptic and normotensive pregnancies. Metabolomics. 21(1). 21–21.

Ahmed, Hany, Sophie Leclercq, Kati Hanhineva, et al.. (2025). Serum Metabolite Profile in Progressive Versus Nonprogressive Alcohol‐Related Liver Disease: A Cross‐Sectional Metabolomics Study. Liver International. 45(6). e70128–e70128. 1 indexed citations

Keski‐Nisula, Leea, et al.. (2024). Parental cigarette smoking before and during pregnancy in a cohort of 21 472 pregnancies. Basic & Clinical Pharmacology & Toxicology. 134(4). 543–555. 1 indexed citations

Leclercq, Sophie, Hany Ahmed, Camille Amadieu, et al.. (2024). Blood metabolomic profiling reveals new targets in the management of psychological symptoms associated with severe alcohol use disorder. eLife. 13. 7 indexed citations

Kärkkäinen, Olli, Tommi Tolmunen, Pekka Mäntyselkä, et al.. (2024). Alcohol use-associated alterations in the circulating metabolite profile in the general population and in individuals with major depressive disorder. Alcohol. 120. 161–167. 4 indexed citations

10.

Klåvus, Anton, Kristiina Rönö, Heikki A. Koistinen, et al.. (2024). Analysis of early-pregnancy metabolome in early- and late-onset gestational diabetes reveals distinct associations with maternal overweight. Diabetologia. 67(11). 2539–2554. 4 indexed citations

11.

Rysä, Jaana, et al.. (2023). Western Diet Decreases Hepatic Drug Metabolism in Male LDLr−/−ApoB100/100 Mice. Journal of Nutrition and Metabolism. 2023. 1–12.

12.

Pessa‐Morikawa, Tiina, Ville Koistinen, Olli Kärkkäinen, et al.. (2023). Impacts of maternal microbiota and microbial metabolites on fetal intestine, brain, and placenta. BMC Biology. 21(1). 207–207. 34 indexed citations

13.

Matsui, Nobuaki, Heidi Kaastrup Müller, Wiebke Theilmann, et al.. (2023). Linking Hypothermia and Altered Metabolism with TrkB Activation. ACS Chemical Neuroscience. 14(17). 3212–3225. 4 indexed citations

14.

Ahmed, Hany, Quentin Leyrolle, Ville Koistinen, et al.. (2022). Microbiota-derived metabolites as drivers of gut–brain communication. Gut Microbes. 14(1). 2102878–2102878. 239 indexed citations breakdown →

15.

Lankinen, Maria, Olli Kärkkäinen, Markku Laakso, et al.. (2021). FADS1 rs174550 genotype and high linoleic acid diet modify plasma PUFA phospholipids in a dietary intervention study. European Journal of Nutrition. 61(2). 1109–1120. 4 indexed citations

16.

Leyrolle, Quentin, Renáta Cserjési, Audrey M. Neyrinck, et al.. (2021). Microbiota and Metabolite Profiling as Markers of Mood Disorders: A Cross-Sectional Study in Obese Patients. Nutrients. 14(1). 147–147. 10 indexed citations

17.

Kärkkäinen, Olli, Anton Klåvus, Ari Voutilainen, et al.. (2020). Changes in Circulating Metabolome Precede Alcohol‐Related Diseases in Middle‐Aged Men: A Prospective Population‐Based Study With a 30‐Year Follow‐Up. Alcoholism Clinical and Experimental Research. 44(12). 2457–2467. 10 indexed citations

18.

Koistinen, Ville, Olli Kärkkäinen, Klaudyna Borewicz, et al.. (2019). Contribution of gut microbiota to metabolism of dietary glycine betaine in mice and in vitro colonic fermentation. Microbiome. 7(1). 103–103. 70 indexed citations

19.

Tolmunen, Tommi, Olli Kärkkäinen, Anu Ruusunen, et al.. (2018). Decreased serum total cholesterol is associated with a history of childhood physical violence in depressed outpatients. Psychiatry Research. 272. 326–333. 16 indexed citations

20.

Kärkkäinen, Olli, Tomi Tuomainen, Ville Koistinen, et al.. (2018). Whole grain intake associated molecule 5-aminovaleric acid betaine decreases β-oxidation of fatty acids in mouse cardiomyocytes. Scientific Reports. 8(1). 13036–13036. 28 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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