Ratan Banik, MD, PhD

Assistant Professor, Department of Anesthesiology

Ratan Banik

Contact Info


Fax 612-626-2363

Office Address:
B515 Mayo Memorial Building
420 Delaware Street SE
Minneapolis, MN 55455
MMC 294 Mayo

Mailing Address:
Anesthesiology Administration
MMC 294 Mayo
8294A (Campus Delivery Code)
420 Delaware St SE
Minneapolis, MN 55455

Administrative Assistant Name
Sydney Lusardo

Administrative Email

Assistant Professor, Department of Anesthesiology

MD, Dhaka University, Bangladesh

Residency in Anesthesiology, Albert Einstein College of Medicine and Montefiore Medical Center

Postdoctoral Research Fellowship, University of Iowa Hospitals & Clinics

Fellowship in Pain, MD Anderson Cancer Center

PhD, Nagoya University, Japan

Internship in General Surgery, Drexel College of Medicine


Schedule an appointment with Dr. Banik at the Clinic for Comprehensive Pain Management by calling 612-301-1425.

Professional Associations

  • American Society of Anesthesiologists


Research Summary/Interests

My research in the last 15 years has extensively used a rat model of postoperative pain following surgical incision, which includes behavioral phenotypes, peripheral nociceptor sensitization, and pharmacologic modulation. To understand genomic effects associated pain behaviors after surgery, my lab performed a transcriptomic analysis of the rat dorsal root ganglia using state-of-the-art next-generation sequencing. The approach permits the assessment of all genes expressed in the primary afferent neurons, uncovering gene dysregulation and respective molecular networks critical for the development of postoperative pain. Using this method, we found gene expression changes in samples from animals after surgery. Using a knowledge-based Ingenuity Pathway Analysis, which annotates genes into functional network based on experimental database, we identified several gene networks in the development of postoperative pain behaviors. Our ongoing studies are aimed at identifying a novel pharmacologic target with high therapeutic potential in postoperative pain. 


Board Certifications

  • Anesthesiology
  • Pain Medicine

Clinical Interests

My clinical interests are to help patients achieve functional restoration and improved quality of life through an effective multidisciplinary approach to pain management.