World's Best Scientists 2026 revealed!

D-Index & Metrics

Microbiology

D-Index
99
Citations
36936
World Ranking
434
National Ranking
200

Medicine

D-Index
107
Citations
43543
World Ranking
6237
National Ranking
3327

Overview

Ali Keshavarzian is affiliated with Rush University Medical Center in the United States and has contributed extensively to the field of medicine, with a total of 196 publications. Their research spans several subfields, including molecular biology, physiology, neurology, infectious diseases, and epidemiology, reflecting a multidisciplinary approach to medical science.

The scientist's work prominently focuses on topics related to gut microbiota and health, diet and metabolism, Parkinson's disease mechanisms and treatments, tryptophan and brain disorders, circadian rhythm and melatonin, dietary effects on health, and COVID-19 clinical research studies. These main topics highlight a broad interest in the intersections of microbiology, neurology, metabolism, and immune response.

Among recent significant publications are:

  • Circadian rhythms and the gut microbiota: from the metabolic syndrome to cancer (2020), published in Nature Reviews Endocrinology
  • Serotonin reduction in post-acute sequelae of viral infection (2023), published in Cell
  • Plasma Markers of Disrupted Gut Permeability in Severe COVID-19 Patients (2021), published in Frontiers in Immunology
  • The human gut microbiome and health inequities (2021), published in Proceedings of the National Academy of Sciences
  • The gut microbiome in Parkinson's disease: A culprit or a bystander? (2020), published in Progress in brain research

Keshavarzian has collaborated frequently with several co-authors over their career, including Maliha Shaikh, Phillip A. Engen, Robin M. Voigt, Christopher B. Forsyth, and Stefan J. Green. These collaborations underline a network of partnerships likely centered around microbiome, neurological disorders, and metabolic research.

Key publication venues where Keshavarzian's research has appeared multiple times include Gastroenterology, bioRxiv (Cold Spring Harbor Laboratory), The American Journal of Gastroenterology, Zenodo (CERN European Organization for Nuclear Research), and UNC Libraries. Gastroenterology stands out as the most frequent venue, with seventeen publications.

Best Publications

  • Gut Microbiota Regulate Motor Deficits and Neuroinflammation in a Model of Parkinson’s Disease

    Timothy R. Sampson;Justine W. Debelius;Taren Thron;Stefan Janssen

  • Disease-specific alterations in the enteric virome in inflammatory bowel disease.

    Jason M. Norman;Scott A. Handley;Megan T. Baldridge;Lindsay Droit

  • Colonic bacterial composition in Parkinson's disease.

    Ali Keshavarzian;Stefan J. Green;Phillip A. Engen;Robin M. Voigt

  • The NASA Twins Study: A multidimensional analysis of a year-long human spaceflight.

    Francine E. Garrett-Bakelman;Francine E. Garrett-Bakelman;Manjula Darshi;Stefan J. Green;Ruben C. Gur

  • Increased Intestinal Permeability Correlates with Sigmoid Mucosa alpha-Synuclein Staining and Endotoxin Exposure Markers in Early Parkinson's Disease

    Christopher B. Forsyth;Kathleen M. Shannon;Jeffrey H. Kordower;Robin M. Voigt

  • Colonic microbiome is altered in alcoholism

    Ece A. Mutlu;Patrick M. Gillevet;Huzefa Rangwala;Masoumeh Sikaroodi

  • Intestinal barrier: an interface between health and disease.

    Ashkan Farhadi;Ali Banan;Jeremy Fields;Ali Keshavarzian

  • Alpha-synuclein in colonic submucosa in early untreated Parkinson's disease

    Kathleen M. Shannon;Ali Keshavarzian;Ece Mutlu;Hemraj B. Dodiya

  • Is alpha-synuclein in the colon a biomarker for premotor Parkinson's Disease? Evidence from 3 cases†‡§

    Kathleen M. Shannon;Ali Keshavarzian;Hemraj B. Dodiya;Shriram Jakate

  • Gut bacterial tyrosine decarboxylases restrict levels of levodopa in the treatment of Parkinson’s disease

    Sebastiaan P. van Kessel;Alexandra K. Frye;Ahmed O. El-Gendy;Maria Castejon

  • A Compositional Look at the Human Gastrointestinal Microbiome and Immune Activation Parameters in HIV Infected Subjects

    Ece A. Mutlu;Ali Keshavarzian;John Losurdo;Garth Swanson

  • Circadian Disorganization Alters Intestinal Microbiota

    Robin M. Voigt;Christopher B. Forsyth;Stefan J. Green;Ece Mutlu

  • The Gastrointestinal Microbiome: Alcohol Effects on the Composition of Intestinal Microbiota.

    Phillip A Engen;Stefan J Green;Robin M Voigt;Christopher B Forsyth

  • Lactobacillus GG treatment ameliorates alcohol-induced intestinal oxidative stress, gut leakiness, and liver injury in a rat model of alcoholic steatohepatitis.

    Christopher B. Forsyth;Ashkan Farhadi;Shriram M. Jakate;Yueming Tang

  • Intestinal fungi contribute to development of alcoholic liver disease

    An Ming Yang;Tatsuo Inamine;Tatsuo Inamine;Katrin Hochrath;Peng Chen

  • Leaky gut in alcoholic cirrhosis: a possible mechanism for alcohol-induced liver damage

    A Keshavarzian;E W Holmes;M Patel;F Iber

  • Role of TLR4 in the gut-brain axis in Parkinson’s disease: a translational study from men to mice

    Paula Perez-Pardo;Hemraj B Dodiya;Phillip A Engen;Christopher B Forsyth

  • Alcohol, Intestinal Bacterial Growth, Intestinal Permeability to Endotoxin, and Medical Consequences: Summary of a Symposium

    Vishnudutt Purohit;J. Christian Bode;Christiane Bode;David A. Brenner

  • Intestinal Dysbiosis: A Possible Mechanism of Alcohol‐Induced Endotoxemia and Alcoholic Steatohepatitis in Rats

    Ece Mutlu;Ali Keshavarzian;Phillip Engen;Christopher B. Forsyth

  • Evidence that chronic alcohol exposure promotes intestinal oxidative stress, intestinal hyperpermeability and endotoxemia prior to development of alcoholic steatohepatitis in rats.

    Ali Keshavarzian;Ashkan Farhadi;Christopher B. Forsyth;Jayanthi Rangan

Frequent Co-Authors

Stefan J. Green
Stefan J. Green University of Illinois at Chicago
Alan L. Landay
Alan L. Landay The University of Texas Medical Branch at Galveston
Fred W. Turek
Fred W. Turek Northwestern University
Bruce R. Hamaker
Bruce R. Hamaker Purdue University West Lafayette
Patrick M. Gillevet
Patrick M. Gillevet George Mason University
Johan Garssen
Johan Garssen Utrecht University
Martha Hotz Vitaterna
Martha Hotz Vitaterna Northwestern University
Masoumeh Sikaroodi
Masoumeh Sikaroodi George Mason University
Helen J. Burgess
Helen J. Burgess University of Michigan–Ann Arbor
Kathleen M. Shannon
Kathleen M. Shannon University of Wisconsin–Madison

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