World's Best Scientists 2026 revealed!
VIEW LIST
Kjersti S. Rønningen

Kjersti S. Rønningen

Oslo University Hospital
Norway

D-Index & Metrics

Biology and Biochemistry

D-Index
55
Citations
11481
World Ranking
15008
National Ranking
75

Kjersti S. Rønningen publication distribution in Biology and Biochemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Biology and Biochemistry in 2026. The highlighted bar marks where Kjersti S. Rønningen sits on this spectrum.

47–56 publications: 8 scientists 57–66 publications: 35 scientists 67–76 publications: 106 scientists 77–86 publications: 231 scientists 87–96 publications: 414 scientists 97–106 publications: 546 scientists 107–116 publications: 704 scientists 117–126 publications: 849 scientists 127–136 publications: 980 scientists 137–146 publications: 942 scientists 147–156 publications: 969 scientists 157–166 publications: 950 scientists 167–176 publications: 951 scientists 177–186 publications: 915 scientists 187–196 publications: 787 scientists 197–206 publications: 841 scientists 207–216 publications: 735 scientists 217–226 publications: 709 scientists 227–236 publications: 651 scientists 237–246 publications: 605 scientists 247–256 publications: 510 scientists 257–266 publications: 524 scientists 267–276 publications: 434 scientists 277–286 publications: 418 scientists 287–296 publications: 350 scientists 297–306 publications: 363 scientists 307–316 publications: 315 scientists 317–326 publications: 296 scientists 327–336 publications: 261 scientists 337–346 publications: 240 scientists 347–356 publications: 219 scientists 357–366 publications: 197 scientists 367–376 publications: 154 scientists 377–386 publications: 161 scientists 387–396 publications: 155 scientists 397–406 publications: 145 scientists 407–416 publications: 124 scientists 417–426 publications: 112 scientists 427–436 publications: 132 scientists 437–446 publications: 116 scientists 447–456 publications: 99 scientists 457–466 publications: 81 scientists 467–476 publications: 91 scientists 477–486 publications: 80 scientists 487–496 publications: 80 scientists 497–506 publications: 60 scientists 507–516 publications: 36 scientists 517–526 publications: 46 scientists 527–536 publications: 54 scientists 537–546 publications: 44 scientists 547–556 publications: 43 scientists 557–566 publications: 43 scientists 567–576 publications: 42 scientists 577–586 publications: 25 scientists 587–596 publications: 34 scientists 597–606 publications: 23 scientists 607–616 publications: 33 scientists 617–626 publications: 31 scientists 627–636 publications: 27 scientists 637–646 publications: 25 scientists 647–656 publications: 28 scientists 657–666 publications: 34 scientists 667–676 publications: 18 scientists 677–686 publications: 16 scientists 687–696 publications: 10 scientists 697–706 publications: 12 scientists 707–716 publications: 21 scientists 717–726 publications: 12 scientists 727–736 publications: 12 scientists 737–746 publications: 10 scientists 747–756 publications: 7 scientists 757–766 publications: 13 scientists 767–776 publications: 15 scientists 777–786 publications: 13 scientists 787–796 publications: 9 scientists 797–806 publications: 9 scientists 807–816 publications: 7 scientists 817–826 publications: 4 scientists 827–836 publications: 9 scientists 837–846 publications: 7 scientists 847–856 publications: 3 scientists 857–866 publications: 5 scientists 867–876 publications: 5 scientists 877–886 publications: 11 scientists 887–896 publications: 3 scientists 897–906 publications: 4 scientists 907–916 publications: 7 scientists 917–926 publications: 5 scientists 927–936 publications: 6 scientists 937–946 publications: 6 scientists 947–956 publications: 3 scientists 957–966 publications: 7 scientists 967–976 publications: 2 scientists 977–986 publications: 2 scientists 987–996 publications: 1 scientists 997–1,006 publications: 5 scientists 1,007–1,016 publications: 2 scientists 1,017–1,026 publications: 2 scientists 1,027 publications: 1 scientists 1,028+ publications: 100 scientists
47 publications 1,028+

This scientist: 145 publications — 24th percentile

24% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,028 publications or more.

Kjersti S. Rønningen D-index placement in Biology and Biochemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Biology and Biochemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Kjersti S. Rønningen sits on this spectrum.

40–41 D-Index: 80 scientists 42–43 D-Index: 183 scientists 44–45 D-Index: 317 scientists 46–47 D-Index: 504 scientists 48–49 D-Index: 718 scientists 50–51 D-Index: 900 scientists 52–53 D-Index: 1,026 scientists 54–55 D-Index: 1,150 scientists 56–57 D-Index: 1,236 scientists 58–59 D-Index: 1,253 scientists 60–61 D-Index: 1,163 scientists 62–63 D-Index: 1,131 scientists 64–65 D-Index: 1,032 scientists 66–67 D-Index: 897 scientists 68–69 D-Index: 814 scientists 70–71 D-Index: 715 scientists 72–73 D-Index: 709 scientists 74–75 D-Index: 596 scientists 76–77 D-Index: 512 scientists 78–79 D-Index: 473 scientists 80–81 D-Index: 412 scientists 82–83 D-Index: 373 scientists 84–85 D-Index: 358 scientists 86–87 D-Index: 285 scientists 88–89 D-Index: 273 scientists 90–91 D-Index: 227 scientists 92–93 D-Index: 208 scientists 94–95 D-Index: 193 scientists 96–97 D-Index: 153 scientists 98–99 D-Index: 157 scientists 100–101 D-Index: 148 scientists 102–103 D-Index: 120 scientists 104–105 D-Index: 113 scientists 106–107 D-Index: 100 scientists 108–109 D-Index: 86 scientists 110–111 D-Index: 67 scientists 112–113 D-Index: 72 scientists 114–115 D-Index: 73 scientists 116–117 D-Index: 64 scientists 118–119 D-Index: 53 scientists 120–121 D-Index: 60 scientists 122–123 D-Index: 54 scientists 124–125 D-Index: 43 scientists 126–127 D-Index: 38 scientists 128–129 D-Index: 49 scientists 130–131 D-Index: 26 scientists 132–133 D-Index: 18 scientists 134–135 D-Index: 23 scientists 136–137 D-Index: 32 scientists 138–139 D-Index: 32 scientists 140–141 D-Index: 27 scientists 142–143 D-Index: 19 scientists 144–145 D-Index: 22 scientists 146–147 D-Index: 12 scientists 148–149 D-Index: 16 scientists 150–151 D-Index: 14 scientists 152–153 D-Index: 10 scientists 154–155 D-Index: 13 scientists 156–157 D-Index: 10 scientists 158–159 D-Index: 7 scientists 160–161 D-Index: 9 scientists 162–163 D-Index: 13 scientists 164–165 D-Index: 4 scientists 166 D-Index: 4 scientists 167+ D-Index: 98 scientists
40 D-Index 167+

This scientist: 55 D-Index — 25th percentile

25% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 167 D-Index or more.

Overview

Kjersti S. Rønningen is affiliated with Oslo University Hospital in Norway and has a research focus primarily within the fields of medicine and dentistry. The main subfields of their work include periodontics, gastroenterology, infectious diseases, surgery, and public health, environmental and occupational health.

The scientist's research covers a variety of topics, with notable emphasis on oral microbiology and periodontitis research, oral health pathology and treatment, celiac disease research and management, viral gastroenteritis research and epidemiology, gastrointestinal disorders and treatments, infective endocarditis diagnosis and management, and dental health and care utilization.

Key recent papers authored or coauthored by Kjersti S. Rønningen include:

  • Parechovirus Infection in Early Childhood and Association With Subsequent Celiac Disease, 2020, The American Journal of Gastroenterology
  • Low level of antibodies to the oral bacterium Tannerella forsythia predicts bladder cancers and Treponema denticola predicts colon and bladder cancers: A prospective cohort study, 2022, PLoS ONE
  • Low levels of antibodies for the oral bacterium Tannerella forsythia predict cardiovascular disease mortality in men with myocardial infarction: A prospective cohort study, 2020, Medical Hypotheses
  • Parechovirus infection in early childhood and association with subsequent celiac disease, 2020, bioRxiv (Cold Spring Harbor Laboratory)
  • Comparative analysis of antibodies to four major periodontal bacteria in respiratory diseases: a cohort study, 2024, BMJ Open

Frequent coauthors of Kjersti S. Rønningen include Lise Lund Håheim, Dag S. Thelle, Ingar Olsen, Per E. Schwarze, and Per Nafstad. These collaborations suggest a multidisciplinary approach throughout the scope of their research projects.

Publication venues where Kjersti S. Rønningen has contributed multiple works include Den Norske tannlegeforenings tidende, The American Journal of Gastroenterology, PLoS ONE, Medical Hypotheses, and bioRxiv (Cold Spring Harbor Laboratory).

Best Publications

  • Association of the T-cell regulatory gene CTLA4 with susceptibility to autoimmune disease

    H Ueda;Howson Jmm.;L Esposito;J Heward

  • Susceptibility to human type 1 diabetes at IDDM2 is determined by tandem repeat variation at the insulin gene minisatellite locus

    Bennett;A M Lucassen;S C Gough;E E Powell

  • Particular HLA-DQ molecules play a dominant role in determining susceptibility or resistance to Type 1 (insulin-dependent) diabetes mellitus

    E. Thorsby;K. S. RØnningen

  • Linkage disequilibrium mapping of a type 1 diabetes susceptibility gene (IDDM7) to chromosome 2q31-q33.

    J B Copeman;F Cucca;C M Hearne;R J Cornall

  • Remapping the insulin gene/IDDM2 locus in type 1 diabetes.

    Bryan J. Barratt;Felicity Payne;Chris E. Lowe;Robert Hermann

  • The biobank of the Norwegian mother and child cohort Study: A resource for the next 100 years

    Kjersti S. Rønningen;Liv Paltiel;Helle M. Meltzer;Rannveig Nordhagen

  • Relative predispositional effects of HLA class II DRB1-DQB1 haplotypes and genotypes on type 1 diabetes: a meta-analysis.

    G. Thomson;A. M. Valdes;A. M. Valdes;J. A. Noble;I. Kockum

  • Comparative high-resolution analysis of linkage disequilibrium and tag single nucleotide polymorphisms between populations in the vitamin D receptor gene

    Sergey Nejentsev;Lisa Godfrey;Hywel Snook;Helene Rance

  • The predisposition to type 1 diabetes linked to the human leukocyte antigen complex includes at least one non-class II gene

    Benedicte A. Lie;John A. Todd;Flemming Pociot;Jørn Nerup

  • Insulin gene region-encoded susceptibility to type 1 diabetes is not restricted to HLA-DR4-positive individuals.

    Bain Sc;Prins Jb;Hearne Cm;Rodrigues Nr

  • HLA-DQA1 and HLA-DQB1 genes may jointly determine susceptibility to develop multiple sclerosis

    Anne Spurkland;Kjersti Skjold Rønningen;Bodvar Vandvik;Erik Thorsby

  • Distribution of HLA-DRB1, -DQA1 and -DQB1 alleles and DQA1-DQB1 genotypes among Norwegian patients with insulin-dependent diabetes mellitus.

    Kjersti S. Rønningen;Anne Spurkland;Thomas Iwe;Frode Vartdal

  • Polymorphic analysis of the human MHC-linked heat shock protein 70 (HSP70-2) and HSP70-Hom genes in insulin-dependent diabetes mellitus (IDDM).

    F. Pociot;K. S. Rønningen;J. Nerup

  • The amino acid at position 57 of the HLA-DQB chain and susceptibility to develop insulin-dependent diabetes mellitus

    Kjersti S. Rønningen;Thomas Iwe;Trond S. Halstensen;Anne Spurkland

  • High Prevalence of Human Enterovirus A Infections in Natural Circulation of Human Enteroviruses

    Elisabet Witsø;Gustavo Palacios;Ondrej Cinek;Lars C. Stene

  • Different contribution of HLA-DR and -DQ genes in susceptibility and resistance to insulin-dependent diabetes mellitus (IDDM)

    S. Yasunaga;A. Kimura;K. Hamaguchi;K. S. Rønningen

  • Distribution of HLA class II alleles among Norwegian Caucasians.

    Kjersti S. Rønningen;Anne Spurkland;Gunnar Markussen;Thomas Iwe

  • Analysis of the vitamin D receptor gene sequence variants in type 1 diabetes.

    Sergey Nejentsev;Jason D Cooper;Lisa Godfrey;Joanna M M Howson

  • Longitudinal Observation of Parechovirus in Stool Samples From Norwegian Infants

    German Tapia;Ondrej Cinek;Elisabet Witsø;Michal Kulich

  • Evidence by allelic association-dependent methods for a type 1 diabetes polygene (IDDM6) on chromosome 18q21

    Tony R. Merriman;Rebecca C. J. Twells;Marilyn E. Merriman;Iain A. Eaves

Frequent Co-Authors

Erik Thorsby
Erik Thorsby Oslo University Hospital
John A. Todd
John A. Todd University of Oxford
Jaakko Tuomilehto
Jaakko Tuomilehto University of Helsinki
Francesco Cucca
Francesco Cucca University of Sassari
Flemming Pociot
Flemming Pociot Steno Diabetes Center
Per Magnus
Per Magnus Norwegian Institute of Public Health
Benedicte A. Lie
Benedicte A. Lie Oslo University Hospital
Anne Spurkland
Anne Spurkland University of Oslo
Tony R. Merriman
Tony R. Merriman University of Otago
Joanna M. M. Howson
Joanna M. M. Howson Novo Nordisk (United Kingdom)

External Links

Personal website of Kjersti S. Rønningen

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Pursuing a degree in Biology or Biochemistry in the USA opens many doors, but it’s equally important to consider online study options and related career pathways. In recent years, accredited online programs have become increasingly popular for students seeking flexibility and specialization.

For those interested in pharmaceutical careers but not yet licensed as pharmacists, online pharmd programs for non pharmacists allow candidates to gain essential skills and credentials. These programs cater to individuals aiming for advanced roles within pharmacy or pharmaceutical research.

Students drawn to health, fitness, or rehabilitation may consider an exercise science degree online accredited for solid groundwork in physiology, biomechanics, and wellness. Alternatively, an online kinesiology degree is another versatile path that intersects with sports science and therapeutic professions.

Those interested in mental health might explore the fastest pmhnp program for a direct route into psychiatric-mental health nurse practitioner roles. Overall, online degrees and certificates create new career pathways that complement and enhance a foundation in Biology or Biochemistry.

Best Scientists Citing Kjersti S. Rønningen

John A. Todd

John A. Todd

University of Oxford

Publications: 147

Flemming Pociot

Flemming Pociot

Steno Diabetes Center

Publications: 78

Jorma Ilonen

Jorma Ilonen

University of Turku

Publications: 70

Erik Thorsby

Erik Thorsby

Oslo University Hospital

Publications: 59

Henry A. Erlich

Henry A. Erlich

UCSF Benioff Children's Hospital

Publications: 58

Mikael Knip

Mikael Knip

University of Helsinki

Publications: 57

Åke Lernmark

Åke Lernmark

Lund University

Publications: 53

Patrick Concannon

Patrick Concannon

University of Florida

Publications: 49

Linda S. Wicker

Linda S. Wicker

University of Oxford

Publications: 43

George S. Eisenbarth

George S. Eisenbarth

University of Colorado Denver

Publications: 42

Marian Rewers

Marian Rewers

University of Colorado Denver

Publications: 39

Benedicte A. Lie

Benedicte A. Lie

Oslo University Hospital

Publications: 38

Constantin Polychronakos

Constantin Polychronakos

McGill University Health Centre

Publications: 35

Per Magnus

Per Magnus

Norwegian Institute of Public Health

Publications: 35

Stephen S. Rich

Stephen S. Rich

University of Virginia

Publications: 35

Jason D. Cooper

Jason D. Cooper

AstraZeneca

Publications: 33

Trending Scientists

Chunbo Zhu

Chunbo Zhu

Harbin Institute of Technology

Diane N. Ruble

Diane N. Ruble

New York University

Shmuel Shulman

Shmuel Shulman

Bar-Ilan University

Ege T. Kavalali

Ege T. Kavalali

Vanderbilt University

Neal Fann

Neal Fann

Environmental Protection Agency

Robin J. Parks

Robin J. Parks

Ottawa Hospital

Lawrence F. Povirk

Lawrence F. Povirk

Virginia Commonwealth University Medical Center

Silvio Silvério da Silva

Silvio Silvério da Silva

Universidade de São Paulo

Pascal Demoly

Pascal Demoly

University of Montpellier

Noémie Elhadad

Noémie Elhadad

Columbia University

Feida Zhu

Feida Zhu

Singapore Management University

John Shi

John Shi

Agriculture and Agriculture-Food Canada

Tadeusz E. Kleindienst

Tadeusz E. Kleindienst

Environmental Protection Agency

Ahmedin Jemal

Ahmedin Jemal

American Cancer Society

Bo Fernhall

Bo Fernhall

University of Illinois at Chicago

Christian P. Giardina

Christian P. Giardina

US Forest Service

Related Biology and Biochemistry Rankings & Guides

2026 AI, Automation, and the Future of Nurse Administrator Degree Careers

2026 AI, Automation, and the Future of Nurse Administrator Degree Careers
2026 Nutrition Degree vs. Certificate: Which Should You Choose?

2026 Nutrition Degree vs. Certificate: Which Should You Choose?
2026 Family Nurse Practitioner vs. Psychiatric Mental Health Nurse Practitioner: Explaining the Difference

2026 Family Nurse Practitioner vs. Psychiatric Mental Health Nurse Practitioner: Explaining the Difference
2026 Do Employers Pay for Pharmacy Degrees: Tuition Reimbursement and Sponsorship Options

2026 Do Employers Pay for Pharmacy Degrees: Tuition Reimbursement and Sponsorship Options
2026 Certified Nursing Assistant (CNA) vs. Registered Nurse (RN): Explaining the Difference

2026 Certified Nursing Assistant (CNA) vs. Registered Nurse (RN): Explaining the Difference
2026 Medical Assisting Degree vs. Certificate: Which Should You Choose?

2026 Medical Assisting Degree vs. Certificate: Which Should You Choose?
2026 Radiology Tech vs. Radiation Therapist: Explaining the Difference

2026 Radiology Tech vs. Radiation Therapist: Explaining the Difference
2026 Can You Get a Nutrition Degree Master's Without a Related Bachelor's Degree?

2026 Can You Get a Nutrition Degree Master's Without a Related Bachelor's Degree?
2026 How to Become a Public Health Inspector: Education, Salary, and Job Outlook

2026 How to Become a Public Health Inspector: Education, Salary, and Job Outlook
2026 Online Women’s Health Nurse Practitioner Degree Programs Costs: Tuition & Fees

2026 Online Women’s Health Nurse Practitioner Degree Programs Costs: Tuition & Fees
2026 Utilization Review Nurse Careers: Skills, Education, Salary & Job Outlook

2026 Utilization Review Nurse Careers: Skills, Education, Salary & Job Outlook
2026 Best Master’s in Genetics Programs

2026 Best Master’s in Genetics Programs
2026 How Much Does a Pediatric Nurse Practitioner Degree Program Cost? Tuition, Fees & Total Expense Breakdown

2026 How Much Does a Pediatric Nurse Practitioner Degree Program Cost? Tuition, Fees & Total Expense Breakdown
2026 How to Become a Neurological Nurse Practitioner: Education, Salary, and Job Outlook

2026 How to Become a Neurological Nurse Practitioner: Education, Salary, and Job Outlook
2026 ADN vs. ASN Nursing Degrees: Explaining the Difference

2026 ADN vs. ASN Nursing Degrees: Explaining the Difference
2026 How to Verify Accreditation for Medical Studies Degree Programs

2026 How to Verify Accreditation for Medical Studies Degree Programs
2026 DNA Analyst Careers: Skills, Education, Salary & Job Outlook

2026 DNA Analyst Careers: Skills, Education, Salary & Job Outlook
2026 What Prerequisites Do You Need for a Nutrition Degree? Entry Requirements, Credits & Eligibility Rules

2026 What Prerequisites Do You Need for a Nutrition Degree? Entry Requirements, Credits & Eligibility Rules
2026 Military-Friendly Online Exercise Science Degree Programs: Benefits, Accreditation, and Career Outcomes

2026 Military-Friendly Online Exercise Science Degree Programs: Benefits, Accreditation, and Career Outcomes
2026 How to Become a Healthcare Risk Manager: Education, Salary, and Job Outlook

2026 How to Become a Healthcare Risk Manager: Education, Salary, and Job Outlook
2026 Physical Therapy Assistant Degree Programs With No GRE or GMAT Requirements

2026 Physical Therapy Assistant Degree Programs With No GRE or GMAT Requirements

Recently Published Articles

2026 How to Verify Accreditation for Medical Assisting Degree Programs

2026 How to Verify Accreditation for Medical Assisting Degree Programs
2026 One-Year Online Biology Master's Degree Programs: Accelerated Options, Costs & Outcomes

2026 One-Year Online Biology Master's Degree Programs: Accelerated Options, Costs & Outcomes
2026 Best Degrees For A Career In Sales: Which Sales Major Should You Choose

2026 Best Degrees For A Career In Sales: Which Sales Major Should You Choose
2026 Online Forensic Science Bachelor's Degree Programs With No Application Fee

2026 Online Forensic Science Bachelor's Degree Programs With No Application Fee
2026 Online Mechanical Engineering Bachelor's Degree Programs for Adult Learners Returning to School

2026 Online Mechanical Engineering Bachelor's Degree Programs for Adult Learners Returning to School
2026 Best Nursing Schools with No TEAS or HESI Exams Requirement

2026 Best Nursing Schools with No TEAS or HESI Exams Requirement
2026 ADN vs. AAD vs. AAS Nursing Degree Programs: Explaining The Difference

2026 ADN vs. AAD vs. AAS Nursing Degree Programs: Explaining The Difference
2026 How to Become a Caregiver: Certification Requirements in Minnesota

2026 How to Become a Caregiver: Certification Requirements in Minnesota
2026 Cheapest and Shortest Online Graphic Design Degree Programs That Pay Well: Cost, Duration, and Salary Outlook

2026 Cheapest and Shortest Online Graphic Design Degree Programs That Pay Well: Cost, Duration, and Salary Outlook
2026 Cheapest and Shortest Online Music Education Degree Programs That Pay Well: Cost, Duration, and Salary Outlook

2026 Cheapest and Shortest Online Music Education Degree Programs That Pay Well: Cost, Duration, and Salary Outlook
2026 How to Become a Radiology Technician in Minnesota

2026 How to Become a Radiology Technician in Minnesota
2026 Best LPN Programs in Ohio – Accredited Online LPN Programs

2026 Best LPN Programs in Ohio – Accredited Online LPN Programs
2026 Best Online Doctorate of Social Work (DSW) Degree Programs

2026 Best Online Doctorate of Social Work (DSW) Degree Programs
2026 Best Online Bachelor’s Degrees in Finance Programs

2026 Best Online Bachelor’s Degrees in Finance Programs
2026 Best Online CAHIIM-Accredited Health Information Management Degree Programs

2026 Best Online CAHIIM-Accredited Health Information Management Degree Programs
2026 Best AI Master's Degrees for Working Professionals

2026 Best AI Master's Degrees for Working Professionals
2026 Fastest Online Finance Master's Degree Programs You Can Finish in Under 2 Years

2026 Fastest Online Finance Master's Degree Programs You Can Finish in Under 2 Years
2026 Best Accredited Online Astronomy & Space Studies Bachelor's Degree Programs

2026 Best Accredited Online Astronomy & Space Studies Bachelor's Degree Programs
2026 What Prerequisites Do You Need for a Political Science Degree? Entry Requirements, Credits & Eligibility Rules

2026 What Prerequisites Do You Need for a Political Science Degree? Entry Requirements, Credits & Eligibility Rules
2026 Best Online MBA in Nonprofit Management Programs

2026 Best Online MBA in Nonprofit Management Programs
2026 Best LPN Programs in Utah – Accredited Online LPN Programs

2026 Best LPN Programs in Utah – Accredited Online LPN Programs