Jan Chojnacki

1.8k total citations
115 papers, 1.3k citations indexed

About

Jan Chojnacki is a scholar working on Gastroenterology, Physiology and Endocrine and Autonomic Systems. According to data from OpenAlex, Jan Chojnacki has authored 115 papers receiving a total of 1.3k indexed citations (citations by other indexed papers that have themselves been cited), including 29 papers in Gastroenterology, 24 papers in Physiology and 23 papers in Endocrine and Autonomic Systems. Recurrent topics in Jan Chojnacki's work include Gastrointestinal motility and disorders (24 papers), Circadian rhythm and melatonin (20 papers) and Helicobacter pylori-related gastroenterology studies (18 papers). Jan Chojnacki is often cited by papers focused on Gastrointestinal motility and disorders (24 papers), Circadian rhythm and melatonin (20 papers) and Helicobacter pylori-related gastroenterology studies (18 papers). Jan Chojnacki collaborates with scholars based in Poland, United States and Finland. Jan Chojnacki's co-authors include Cezary Chojnacki, Janusz Błasiak, Grażyna Klupińska, Tomasz Popławski, Michał Fila, Elżbieta Pawłowska, Maria Wiśniewska‐Jarosińska, Joanna Szczepańska, Renata Krupa and Tomasz Śliwiński and has published in prestigious journals such as Gastroenterology, International Journal of Molecular Sciences and Molecules.

In The Last Decade

Jan Chojnacki

109 papers receiving 1.3k citations

Peers

Jan Chojnacki

EAS

PHYSI

GASTR

SURGE

Cezary Chojnacki Poland

Vance L. Albaugh United States

Erifili Hatziagelaki Greece

Peter C. Konturek Germany

Marcin Włodarczyk Poland

Carmelo Romeo Italy

Lucyna Ostrowska Poland

Teresa Esposito Italy

Behtash Ghazi Nezami Iran

Laura Perrone Italy

Cezary Chojnacki Poland

Jan Chojnacki

221 ×0.5

307 ×1.0

EAS

263 ×1.1

PHYSI

203 ×1.0

GASTR

126 ×0.7

SURGE

Citations per year, relative to Jan Chojnacki Jan Chojnacki (= 1×) peers Cezary Chojnacki

Countries citing papers authored by Jan Chojnacki

Since Specialization

Citations

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

Fields of papers citing papers by Jan Chojnacki

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Jan Chojnacki

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

Chojnacki, Jan, et al.. (2024). The Variability of Tryptophan Metabolism in Patients with Mixed Type of Irritable Bowel Syndrome. International Journal of Molecular Sciences. 25(5). 2550–2550. 3 indexed citations

Fila, Michał, Jan Chojnacki, Marcin Derwich, et al.. (2024). Urine 5-Hydroxyindoleacetic Acid Negatively Correlates with Migraine Occurrence and Characteristics in the Interictal Phase of Episodic Migraine. International Journal of Molecular Sciences. 25(10). 5471–5471. 3 indexed citations

Chojnacki, Cezary, et al.. (2024). A Low FODMAP Diet Supplemented with L-Tryptophan Reduces the Symptoms of Functional Constipation in Elderly Patients. Nutrients. 16(7). 1027–1027. 1 indexed citations

Fila, Michał, Cezary Chojnacki, Jan Chojnacki, & Janusz Błasiak. (2023). The kynurenine pathway of tryptophan metabolism in abdominal migraine in children – A therapeutic potential?. European Journal of Paediatric Neurology. 48. 1–12. 1 indexed citations

Błasiak, Janusz, et al.. (2023). Tryptophan Metabolism in Postmenopausal Women with Functional Constipation. International Journal of Molecular Sciences. 25(1). 273–273. 4 indexed citations

Chojnacki, Cezary, et al.. (2023). The Usefulness of the Low-FODMAP Diet with Limited Tryptophan Intake in the Treatment of Diarrhea-Predominant Irritable Bowel Syndrome. Nutrients. 15(8). 1837–1837. 8 indexed citations

Fila, Michał, et al.. (2023). Nutrition and Calcitonin Gene Related Peptide (CGRP) in Migraine. Nutrients. 15(2). 289–289. 9 indexed citations

Chojnacki, Cezary, et al.. (2018). Evaluation of the Extrapineal Sources of Melatonin in Patients with Lymphocytic Colitis. International Journal of Multidisciplinary and Current Research. 6(4). 857–863. 1 indexed citations

Chojnacki, Cezary, et al.. (2018). Expression of tryptophan hydroxylase in gastric mucosa in symptomatic and asymptomatic Helicobacter pylori infection. Archives of Medical Science. 15(2). 416–423. 7 indexed citations

10.

Klupińska, Grażyna, et al.. (2014). The effect of melatonin supplementation on the quality of sleep and weight status in postmenopausal women. Menopausal Review. 6(6). 334–338. 23 indexed citations

11.

Chojnacki, Cezary, et al.. (2012). Serotonin and melatonin secretion and metabolism in patients with liver cirrhosis. Polskie Archiwum Medycyny Wewnętrznej. 122(9). 392–397. 14 indexed citations

12.

Walczak, Anna, Karolina Przybyłowska, Łukasz Dziki, et al.. (2012). The lL-8 and IL-13 Gene Polymorphisms in Inflammatory Bowel Disease and Colorectal Cancer. DNA and Cell Biology. 31(8). 1431–1438. 29 indexed citations

13.

Chojnacki, Jan, et al.. (2011). Biometrics of the Swan Mussel Anodonta cygnea. Polish Journal of Environmental Studies. 20(1). 2 indexed citations

14.

Bartnik, W, et al.. (2009). Rekomendacje diagnostyczno-terapeutyczne w zespole jelita nadwrażliwego. 1(1). 9–17. 3 indexed citations

15.

Wiśniewska‐Jarosińska, Maria, et al.. (2009). Diagnostic value of measuring the amount of 6-hydroxymelatonin sulfate in urine in postmenopausal women with functional abdominal pain. 8(5). 251–256. 1 indexed citations

16.

Wiśniewska‐Jarosińska, Maria, et al.. (2009). Postprandial secretion of serotonin and melatonin in patients with functional dyspepsia. 50(3). 1 indexed citations

17.

Klupińska, Grażyna, Tomasz Popławski, Józef Drzewoski, et al.. (2007). Therapeutic Effect of Melatonin in Patients With Functional Dyspepsia. Journal of Clinical Gastroenterology. 41(3). 270–274. 35 indexed citations

18.

Arabski, Michał, Paweł Kaźmierczak, Maria Wiśniewska‐Jarosińska, et al.. (2006). Helicobacter pylori infection can modulate the susceptibility of gastric mucosa cells to MNNG. Cellular & Molecular Biology Letters. 11(4). 570–8. 10 indexed citations

19.

Klupińska, Grażyna, et al.. (2006). Nocturnal Secretion of Melatonin in Patients with Duodenal Ulcer Disease and Ulcer−Like Dyspepsia. Advances in Clinical and Experimental Medicine. 15(5). 811–815. 2 indexed citations

20.

Chojnacki, Jan. (1993). Sztuczne rafy. Alternatywa w rekultywacji i ochronie wod Zatoki Pomorskiej. AURA - Tidsskrift for akademiske studier av nyreligiøsitet. 11–13. 1 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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