Niilo Ryti

9.5k total citations · 1 hit paper
22 papers, 570 citations indexed

About

Niilo Ryti is a scholar working on Health, Toxicology and Mutagenesis, Cardiology and Cardiovascular Medicine and Physiology. According to data from OpenAlex, Niilo Ryti has authored 22 papers receiving a total of 570 indexed citations (citations by other indexed papers that have themselves been cited), including 16 papers in Health, Toxicology and Mutagenesis, 6 papers in Cardiology and Cardiovascular Medicine and 4 papers in Physiology. Recurrent topics in Niilo Ryti's work include Climate Change and Health Impacts (15 papers), Air Quality and Health Impacts (9 papers) and Heart Rate Variability and Autonomic Control (5 papers). Niilo Ryti is often cited by papers focused on Climate Change and Health Impacts (15 papers), Air Quality and Health Impacts (9 papers) and Heart Rate Variability and Autonomic Control (5 papers). Niilo Ryti collaborates with scholars based in Finland, United States and Italy. Niilo Ryti's co-authors include Jouni J. K. Jaakkola, Yuming Guo, Harri Antikainen, Maritta S. Jaakkola, Nazeeba Siddika, Mikhail Sofiev, Aino K. Rantala, Jaakko Kukkonen, A. Kofi Amegah and Éric Lavigne and has published in prestigious journals such as Journal of Biological Chemistry, Nature Communications and Scientific Reports.

In The Last Decade

Niilo Ryti

20 papers receiving 559 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.

Rapid increase in the risk of heat-related mortality

2023 116 citations Samuel Lüthi, Erich Fischer et al. Nature Communications profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Niilo Ryti Finland	11	427	135	105	75	57	22	570
Dharshani Pearson United States	11	582 1.4×	160 1.2×	123 1.2×	42 0.6×	55 1.0×	14	664
Wan‐Hsiang Hsu United States	10	375 0.9×	86 0.6×	110 1.0×	45 0.6×	119 2.1×	20	515
Anna Kosheleva United States	17	543 1.3×	131 1.0×	107 1.0×	41 0.5×	120 2.1×	41	929
Moning Guo China	13	309 0.7×	54 0.4×	101 1.0×	39 0.5×	87 1.5×	52	626
Haitham Khraishah United States	13	346 0.8×	105 0.8×	92 0.9×	35 0.5×	57 1.0×	39	725
Kathleen McLean Canada	11	305 0.7×	83 0.6×	34 0.3×	63 0.8×	58 1.0×	28	430
Zhiying Sun China	10	385 0.9×	75 0.6×	113 1.1×	44 0.6×	94 1.6×	14	515
Cizao Ren United States	12	765 1.8×	82 0.6×	147 1.4×	38 0.5×	129 2.3×	17	896
Dmitry Shaposhnikov Russia	15	591 1.4×	195 1.4×	167 1.6×	222 3.0×	98 1.7×	32	840
Fangrong Fei China	12	390 0.9×	112 0.8×	87 0.8×	47 0.6×	132 2.3×	24	646

Countries citing papers authored by Niilo Ryti

Since Specialization

Citations

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

Fields of papers citing papers by Niilo Ryti

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Niilo Ryti

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

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Li, Chuanxi, Dominic Royé, Francesco Sera, et al.. (2025). Anthropogenic climate change contributed to excess dengue risk related to hydrometeorological conditions in Brazil and China. One Earth. 8(10). 101388–101388.

Kim, Yoonhee, Harri Antikainen, Masahiro Hashizume, et al.. (2024). A nationwide epidemiological study on the associations between ambient particulate matter and suicide in Finland. Nature Mental Health. 2(4). 426–434. 1 indexed citations

Jaakkola, Jouni J. K., et al.. (2023). Risk of ischemic and hemorrhagic stroke in relation to cold spells in four seasons. BMC Public Health. 23(1). 554–554. 9 indexed citations

Lüthi, Samuel, Erich Fischer, Noah Scovronick, et al.. (2023). Rapid increase in the risk of heat-related mortality. Nature Communications. 14(1). 4894–4894. 116 indexed citations breakdown →

Heibati, Behzad, Wenge Wang, Niilo Ryti, et al.. (2021). Weather conditions and COVID-19 incidence in a cold climate:a time-series study in Finland. University of Oulu Repository (University of Oulu). 12 indexed citations

Jaakkola, Jouni J. K., et al.. (2021). Association between winter cold spells and acute myocardial infarction in Lithuania 2000–2015. Scientific Reports. 11(1). 17062–17062. 17 indexed citations

Heibati, Behzad, Wenge Wang, Niilo Ryti, et al.. (2021). Weather Conditions and COVID-19 Incidence in a Cold Climate: A Time-Series Study in Finland. Frontiers in Public Health. 8. 605128–605128. 1 indexed citations

Kiviniemi, Antti M., Craig G. Crandall, Juha S. Perkiömäki, et al.. (2021). Central aortic hemodynamics following acute lower and upper-body exercise in a cold environment among patients with coronary artery disease. Scientific Reports. 11(1). 2550–2550. 5 indexed citations

Rantala, Aino K., Harri Antikainen, Nazeeba Siddika, et al.. (2020). Effects of Air Pollution on the Risk of Low Birth Weight in a Cold Climate. Applied Sciences. 10(18). 6399–6399. 8 indexed citations

10.

Ikäheimo, Tiina M., Niilo Ryti, Arto J. Hautala, et al.. (2020). Endothelial function in response to exercise in the cold in patients with coronary artery disease. Clinical Physiology and Functional Imaging. 40(4). 245–256. 10 indexed citations

11.

Ryti, Niilo, et al.. (2020). Paradoxical home temperatures during cold weather: a proof-of-concept study. International Journal of Biometeorology. 64(12). 2065–2076.

12.

Siddika, Nazeeba, Aino K. Rantala, Harri Antikainen, et al.. (2020). Short-term prenatal exposure to ambient air pollution and risk of preterm birth - A population-based cohort study in Finland. Environmental Research. 184. 109290–109290. 23 indexed citations

13.

Ikäheimo, Tiina M., Niilo Ryti, Juha S. Perkiömäki, et al.. (2019). Good safety practice in a randomized controlled trial (CadColdEx) involving increased cardiac workload in patients with coronary artery disease. BMC Cardiovascular Disorders. 19(1). 69–69. 3 indexed citations

14.

Siddika, Nazeeba, Aino K. Rantala, Harri Antikainen, et al.. (2019). Synergistic effects of prenatal exposure to fine particulate matter (PM2.5) and ozone (O3) on the risk of preterm birth: A population-based cohort study. Environmental Research. 176. 108549–108549. 64 indexed citations

15.

Ryti, Niilo, Juhani Junttila, Harri Antikainen, et al.. (2018). Coronary stenosis as a modifier of the effect of cold spells on the risk of sudden cardiac death: a case-crossover study in Finland. BMJ Open. 8(8). e020865–e020865. 5 indexed citations

16.

Kiviniemi, Antti M., Niilo Ryti, Tuomas Kenttä, et al.. (2018). Cardiovascular responses to cold and submaximal exercise in patients with coronary artery disease. American Journal of Physiology-Regulatory, Integrative and Comparative Physiology. 315(4). R768–R776. 15 indexed citations

17.

Ryti, Niilo, Harri Antikainen, Eeva Hookana, et al.. (2017). Risk of sudden cardiac death in relation to season-specific cold spells: a case–crossover study in Finland. BMJ Open. 7(11). e017398–e017398. 21 indexed citations

18.

Ryti, Niilo, Harri Antikainen, Juhani Junttila, et al.. (2017). Cold spells and ischaemic sudden cardiac death: effect modification by prior diagnosis of ischaemic heart disease and cardioprotective medication. Scientific Reports. 7(1). 41060–41060. 20 indexed citations

19.

Ryti, Niilo, Yuming Guo, & Jouni J. K. Jaakkola. (2015). Global Association of Cold Spells and Adverse Health Effects: A Systematic Review and Meta-Analysis. Environmental Health Perspectives. 124(1). 12–22. 191 indexed citations

20.

Vainio, Laura, Niilo Ryti, Johanna Magga, et al.. (2011). Neuronostatin, a Novel Peptide Encoded by Somatostatin Gene, Regulates Cardiac Contractile Function and Cardiomyocyte Survival. Journal of Biological Chemistry. 287(7). 4572–4580. 16 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.

Explore authors with similar magnitude of impact