Arto Kokkola

ORCID: 0000-0002-8286-0666
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Research Areas
  • Gastric Cancer Management and Outcomes
  • Pancreatic and Hepatic Oncology Research
  • Helicobacter pylori-related gastroenterology studies
  • Esophageal Cancer Research and Treatment
  • Pancreatitis Pathology and Treatment
  • Esophageal and GI Pathology
  • Eosinophilic Esophagitis
  • Genetic factors in colorectal cancer
  • Metastasis and carcinoma case studies
  • Cancer Genomics and Diagnostics
  • Gallbladder and Bile Duct Disorders
  • Cholangiocarcinoma and Gallbladder Cancer Studies
  • Gastrointestinal Tumor Research and Treatment
  • Peptidase Inhibition and Analysis
  • Protease and Inhibitor Mechanisms
  • Galectins and Cancer Biology
  • RNA modifications and cancer
  • Genomic variations and chromosomal abnormalities
  • Glycosylation and Glycoproteins Research
  • Gastroesophageal reflux and treatments
  • Inflammatory mediators and NSAID effects
  • Gut microbiota and health
  • Colorectal Cancer Treatments and Studies
  • Renal cell carcinoma treatment
  • Neuroendocrine Tumor Research Advances

University of Helsinki
2015-2025

Helsinki University Hospital
2016-2025

Oulu University Hospital
2024

Herttoniemi Hospital
2005

Translational Research Institute
2002

Jorvi Hospital
2000

National Cancer Center Hospital East
1998

Päijät-Hämeen Keskussairaala
1992

Maarten Korrel L. Jones Jony van Hilst Gianpaolo Balzano Bergþór Björnsson and 88 more Ugo Boggi Svein Olav Bratlie Olivier R. Busch Giovanni Butturini Giovanni Capretti Riccardo Casadei Bjørn Edwin Anouk M.L.H. Emmen Alessandro Esposito Massimo Falconi Bas Groot Koerkamp Tobias Keck Ruben H.J. de Kleine Dyre Kleive Arto Kokkola Daan J. Lips Sanne Lof Misha Luyer Alberto Manzoni Ravi Marudanayagam Matteo De Pastena Nicolò Pecorelli John Primrose Claudio Ricci Roberto Salvia Per Sandström Frederique L. Vissers Ulrich F. Wellner Alessandro Zerbi Marcel G. W. Dijkgraaf Marc G. Besselink Mohammad Abu Hilal Adnan Alseidi Constanza Aquilano Johanna Arola Denise Bianchi Rachel M. Brown Daniela Campani Joanne Chin–Aleong Jérôme Cros Lyubomira Dimitrova Claudio Doglioni Safi Dokmak Russell Dorer Michael Doukas J Fabré Giovanni Ferrari В. Н. Гриневич Stefano Gobbo Thilo Hackert Marius van den Heuvel Clement Huijsentruijt Mar Iglesias Casper Jansen Igor Khatkov David A. Kooby Marco Schiavo Lena Claudio Luchini Krishna Menon Patrick Michenet Q. Molenaar Anna Nedkova Andrea Pietrabissa Mihaela Raicu Rushda Rajak Branislava Ranković Aniko Rendek Benjamin Rivière António Sá Cunha Olivier Saint Marc Patricia Sánchez‐Velázquez Donatella Santini Aldo Scarpa Mylène Sebagh Donald L. Sears Mihir M. Shah Zahir Soonawalla Paola Spaggiari Lars Tharun Tore Tholfsen Aleš Tomažič Alessandro Vanoli Caroline S. Verbeke Joanne Verheij Moritz von Winterfeld Roeland F. de Wilde Vincent Yip Yoh Zen

The oncological safety of minimally invasive surgery has been questioned for several abdominal cancers. Concerns also exist regarding the use distal pancreatectomy (MIDP) in patients with resectable pancreatic cancer as randomised trials are lacking.In this international non-inferiority trial, we recruited adults from 35 centres 12 countries. Patients were randomly assigned to either MIDP (laparoscopic or robotic) open (ODP). Both and pathologists blinded approach. Primary endpoint was...

10.1016/j.lanepe.2023.100673 article EN cc-by-nc-nd The Lancet Regional Health - Europe 2023-07-06
Thomas F. Stoop Toshitaka Sugawara Atsushi Oba Isabel M. Feld Stijn van Roessel and 95 more Eran van Veldhuisen Yan‐Dong Wu Jo Nishino Mahsoem Ali Adnan Alseidi Alain Sauvanet Antonino Mirabella António Sá Cunha Arto Kokkola Bas Groot Koerkamp Daniel Pietrasz Dyre Kleive Giovanni Butturini Giuseppe Malleo Hanneke W.M. van Laarhoven Isabella Frigerio J. Dembinski Jing He Johan Gagnière Jörg Kleeff José Manuel Ramia Keith Roberts Knut Jørgen Labori Marco V. Marino Massimo Falconi Michael Bau Mortensen Mickaël Lesurtel Morgan Bonds Nikolaos Chatzizacharias Oliver Strobel Olivıer Turrini Oonagh Griffin Oskar Franklin Per Pfeiffer Richard D. Schulick Roberto Salvia Roeland F. de Wilde Safi Dokmak Salvador Rodriguez Franco Simone Augustinus Stefan Kobbelgaard Burgdorf Stefano Crippa Thilo Hackert Timo Tarvainen William R. Burns Wells A. Messersmith Johanna W. Wilmink Richard A. Burkhart Marco Del Chiaro Marc G. Besselink Ajay N. Jain Akio Saiura Alberto Balduzzi Alejandro Serrablo Alessandro Coppola Alessandro Zerbi Ammar A. Javed Andrej Nikov Asif Halimi Attila Bursics Boris V. Janssen Braden N. Miller Alexis Laurent Claudia E. Mack Daisuke Hashimoto Damiano Caputo Elena Rangelova Elisabetta Sereni Felix Rückert Frederik Berrevoet Gianpaolo Balzano Giedrius Barauskas Giulio Belfiori Giuseppe Fusai Geert Kazemier Henrique Alexandrino Hirofumi Ishida Jacob L. van Dam Jean–Baptiste Bachet Julien Taı̈eb Keiichi Akahoshi Kevin C. Conlon Kimitaka Tanaka Kürşat Dikmen Lilian Schwartz Lysiane Marthey Martijn W.J. Stommel Martin Varga Michael G. House Minoru Tanabe Mohammed Al-Musawi Motokazu Sugimoto Naoto Gotohda Nicolas Régenet Olivier R. Busch

Importance The effect of adjuvant chemotherapy following resection pancreatic adenocarcinoma after preoperative (m)FOLFIRINOX (combination leucovorin calcium [folinic acid], fluorouracil, irinotecan hydrochloride, and oxaliplatin in full or modified dosing) on overall survival (OS) is unclear because current studies do not account for the number cycles regimen. Objective To investigate association with OS, taking into Design, Setting, Participants This retrospective cohort study included...

10.1001/jamaoncol.2024.5917 article EN JAMA Oncology 2025-01-23

Background: This endoscopic follow-up study was undertaken to evaluate the risk of gastric cancer (GC) and carcinoids in patients with pernicious anaemia (PA) analyse whether early detection GC could be provided by regular follow-up. Methods: Screening gastroscopy performed 71 anaemia, thereafter they were followed up gastroscopies at 3-year intervals for a mean time 5.8 years. Standardized incidence ratios (SIR) calculated, expected number being based on rates whole Finnish population....

10.1080/00365529850166266 article EN Scandinavian Journal of Gastroenterology 1998-01-01

Microbial ecosystems that inhabit the human gut form central component of our physiology and metabolism, regulating modulating both health disease. Changes or disturbances in composition activity this microbiota can result altered immunity, inflammation, even cancer. To compare diversity stool samples from patient groups based on site neoplasm gastrointestinal tract (GIT) to assess possible contribution bacterial tumorigenesis. We studied by16S RNA gene sequencing DNA 83 patients, who were...

10.1007/s10620-018-5190-5 article EN cc-by-nc Digestive Diseases and Sciences 2018-07-11

Background . Only a few reported studies focus on the natural history and course of advanced severe chronic atrophic gastritis. Methods In this study we followed 47 men (mean age 62 years) with (moderate or severe) Helicobacter pylori ‐positive corpus Duration endoscopic follow‐up was 6 years based serum levels pepsinogen I antibodies to H. covered period 10 years. None patients treated for infection prior end follow‐up. Results The median antibody titre declined (IgG from 4000 1300; IgA 200...

10.1034/j.1600-0463.2003.1110604.x article EN Apmis 2003-06-01

Abstract Purpose: Cyclooxygenase-2 (COX-2) promotes carcinogenesis and its expression associates with clinicopathologic characteristics in gastric cancer. HuR is an mRNA binding protein that controls the stability of certain transcripts including COX-2. We evaluated prognostic significance COX-2 expressions cancer whether there exists a link between expressions. Experimental Design: The study included 342 consecutive patients histologically confirmed adenocarcinoma, whom 321 had tissue...

10.1158/1078-0432.ccr-05-0764 article EN Clinical Cancer Research 2005-10-15

Abstract Background Highly utilized risk scores for clinically relevant postoperative pancreatic fistula (CR-POPF) have guided clinical decision-making in pancreatoduodenectomy. However, none has been successfully developed distal pancreatectomy. This study aimed to develop and validate a new score Methods Patients undergoing pancreatectomy at Helsinki University Hospital, Finland from 2013 2021, Karolinska Sweden, 2010 2020, were included retrospectively. The outcome was CR-POPF, according...

10.1093/bjs/znac266 article EN cc-by British journal of surgery 2022-08-19

ABSTRACT Introduction The IMMray PanCan-d test combines an 8-plex biomarker signature with CA19-9 in a proprietary algorithm to detect pancreatic ductal adenocarcinoma (PDAC) serum samples. This study aimed validate the clinical performance of and better understand Lewis null (le/le) individuals who cannot express CA19-9. Methods Serum samples from 586 were analyzed assay, including 167 PDAC samples, 203 at high-risk for familial/hereditary 221 healthy controls. Samples collected eleven...

10.14309/ctg.0000000000000468 article EN cc-by-nc-nd Clinical and Translational Gastroenterology 2022-02-14

Background: There are few data on the natural course of Helicobacter pylori ‐related atrophic gastritis. Aim: To investigate effect H. eradication advanced gastritis in corpus. Methods: Twenty‐two elderly men with infection and moderate or severe corpus formed study population. These were under endoscopic surveillance because presence indefinite definite dysplastic gastric lesions addition to The gastroscopically bioptically examined four times before they received therapy (mean follow‐up...

10.1046/j.1365-2036.2002.01214.x article EN Alimentary Pharmacology & Therapeutics 2002-03-01

AIMS: To assess the risk of gastric carcinoma in patients with histologically verified dysplasia and atrophic gastritis stomach. METHODS: One hundred one mild (n = 84), moderate 14), or severe 3) among 359 elderly men who smoked underwent gastroscopy because low serum pepsinogen. Patients were prospectively followed up for an average four years repeated gastroscopies multiple biopsies. RESULTS: Four 84 (4.8%) cases had progressed to during follow up. Most resolved spontaneously. No surgical...

10.1136/jcp.49.12.979 article EN Journal of Clinical Pathology 1996-12-01

The prognostic value of the immunohistochemical expression epithelial and stromal syndecan-1 was evaluated in 296 patients with gastric carcinoma. Formalin-fixed, paraffin-embedded specimens adenocarcinomas were stained mouse monoclonal antibody B-B4 against human syndecan-1. Loss immunoreactivity (≤60% cancer cells stained) observed 197 (67%) patients. Stromal 28 (9%) correlated a higher stage disease (stages II–IV), tumour location upper third stomach, nodal metastases (N1 or N2), positive...

10.1002/1097-0215(20010120)95:1<1::aid-ijc1000>3.0.co;2-5 article EN International Journal of Cancer 2001-01-01

We studied DNA copy number changes in gastric cancer (GC) using comparative genomic hybridization (CGH) analysis on 35 resected carcinomas (22 of the intestinal type and 13 diffuse type). Eighty-three percent cases showed changes. Gains were more common than losses (median 3 1 primary tumors type, respectively). The most gains detected 20q [46%; 12 (55%) four (31%)], 8q [37%; 10 (45%) three (23%)], 17q12-21 [29%; all but one (41%)]. frequent 18q [26%; (41%)] 4q [23%; (32%)]. High-level...

10.1002/(sici)1098-2264(199709)20:1<38::aid-gcc6>3.0.co;2-a article EN Genes Chromosomes and Cancer 1997-09-01

To elucidate gene expression signatures associated with gastric carcinogenesis, we performed a genome-wide analysis of 46 Finnish and 20 Japanese tissues. Comparative between datasets identified 58 common genes that were differentially expressed cancerous non-neoplastic Twenty-six these up-regulated in cancer 32 down-regulated. Of genes, 64% also another unrelated publicly available dataset. The levels four the CXCL1, SPARC, SPP1 SULF, further analyzed 82 tissues using quantitative real-time...

10.1002/gcc.20715 article EN Genes Chromosomes and Cancer 2009-09-24

We have investigated the expression and regulation of 15-hydroxyprostaglandin dehydrogenase (15-PGDH) in gastric cancer.Clinical adenocarcinoma samples were analyzed by immunohistochemistry quantitative real-time PCR for protein mRNA 15-PGDH methylation status promoter. The effects interleukin-1beta (IL-1beta) epigenetic mechanisms on assessed cancer cell lines.In a line with very low (TMK-1), promoter was methylated treatment demethylating agent 5-aza-2'-deoxycytidine restored expression....

10.1158/1078-0432.ccr-08-2518 article EN Clinical Cancer Research 2009-07-08

Both hydrocortisone and pasireotide have been shown in randomized clinical trials to be effective reducing postoperative complications of pancreatic surgery, but date no trial has evaluated the effectiveness compared with hydrocortisone.To assess noninferiority after partial pancreatectomy.A noninferiority, parallel-group, individually was conducted at a single academic center between May 19, 2016, December 17, 2018. Outcome collectors analyzers were blinded. A total 281 patients undergoing...

10.1001/jamasurg.2019.6019 article EN cc-by JAMA Surgery 2020-02-05

Abstract Background Gastric adenocarcinoma is associated with H. pylori infection and inflammation that can result in the dysbiosis of gastric microbiota. The association intestinal microbiota subtypes or gastrointestinal stromal tumors (GIST) however not well known. Therefore, we performed 16S rRNA gene sequencing on DNA isolated from stool samples Finnish patients controls to study differences among different histological adenocarcinoma, GIST healthy controls. Results We found gut alpha...

10.1186/s13099-021-00403-x article EN cc-by Gut Pathogens 2021-02-17

Abstract Background Recently, the first randomized trials comparing minimally invasive distal pancreatectomy (MIDP) with open (ODP) for non-malignant and malignant disease showed a 2-day reduction in time to functional recovery after MIDP. However, pancreatic ductal adenocarcinoma (PDAC), concerns have been raised regarding oncologic safety (i.e., radical resection, lymph node retrieval, survival) of MIDP, as compared ODP. Therefore, controlled trial MIDP ODP PDAC oncological is warranted....

10.1186/s13063-021-05506-z article EN cc-by Trials 2021-09-09

The desirable lymph node count was determined to maximize the survival time expectancy according among patients who have undergone oesophagectomy for oesophageal cancer.

10.1093/ejcts/ezae090 article EN European Journal of Cardio-Thoracic Surgery 2024-03-01

<h2>Structured abstract</h2><h3>Introduction</h3> International studies on preoperative risk factors of postoperative complications after gastrectomy for gastric cancer are few, and done in a population-based setting or using standardized definitions lacking. Gastrectomy is characterized by high complication rates mortality, identifying the mortality enables to improve outcomes. <h3>Materials methods</h3> This nationwide cohort study based Finnish National Esophago-Gastric Cancer Cohort, it...

10.1016/j.ejso.2025.109682 article EN cc-by European Journal of Surgical Oncology 2025-02-10

Abstract Background Knowledge on the incidence of surgical complications after oesophagectomy for oesophageal cancer in nationwide practice is scarce. The aim this study was to assess complication trends a nationwide, population-based, unselected cohort. Methods All patients undergoing Finland 1987–2016 were included. defined by Esophagectomy Complications Consensus Group (ECCG) reported three 10-year periods. Chi-square test and Kruskal-Wallis used compare outcomes these Results A total...

10.1186/s12957-025-03709-1 article EN cc-by World Journal of Surgical Oncology 2025-02-18

Abstract Background The use of epidural analgesia has been proposed to improve the prognosis esophageal cancer by attenuating stress response and being less immunosuppressive than opioids. This study aims evaluate association, if any, between non‐epidural pain management compared during minimally invasive or open esophagectomy prognosis. Materials Methods was a population‐based nationwide retrospective cohort in Finland, using Finnish National Esophago‐Gastric Cancer Cohort (FINEGO)....

10.1111/aas.70016 article EN cc-by Acta Anaesthesiologica Scandinavica 2025-03-11

Background: Indeterminate biliary strictures, that is, a stricture with benign brush cytology but without clear etiology in clinical or radiological assessment, pose challenge for clinicians. This study aimed to assess the incidence and risk factors malignant disease patients indeterminate strictures. Methods: is single-center retrospective of undergoing first endoscopic retrograde cholangiopancreatography (ERCP) brushing between March 2011 2020. The included atypical ERCP samples. Main...

10.1177/14574969251321966 article EN cc-by Scandinavian Journal of Surgery 2025-03-17
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