Medical School
Lillehei Heart Institute
Dear friends and colleagues,

We are pleased to release the first LHI newsletter for 2023 in time for Spring! In the last year, LHI membership has grown tremendously and this month in March 2023, there are 133 faculty members in the LHI, spanning 10 Departments in the Medical School. Moving forward, every quarter, the LHI newsletter will aim to portray the interdisciplinary nature and the full spectrum of cardiovascular research activities that are conducted at the University of Minnesota. Starting with this edition, you will find a Research Spotlight that depicts the interdisciplinary research program of LHI member, Dr. John Osborn in the Department of Surgery. Also, on March 2, we organized the first LHI-CFI Mini-Symposium that showcased ongoing collaborative projects between the LHI and CFI. To stimulate greater interdisciplinary collaborations, the LHI launched the first LHI Collaborative Pilot Grant program in February. Finally, you will find a list of activities by LHI members that advance the mission of the LHI, which is to discover novel strategies to promote greater cardiovascular health and reduce suffering from cardiovascular disease.

We hope you enjoy this first edition of the LHI newsletter in 2023!

Osborn Lab

The overarching goal of Dr. Osborn’s laboratory is the development of novel approaches to modulate the autonomic nervous system for the treatment of cardiometabolic diseases. Although the primary focus of his research has been on hypertension, his laboratory is also interested in the role of autonomic dysfunction in metabolic conditions such as diabetes and obesity. His research has been continuously funded by NIH since 1988 and is currently focused in two areas.
 

1) Translational research on the contribution of renal nerves to the pathogenesis and maintenance of hypertension

This is the primary focus of the Osborn lab. Studies conducted in small (mice and rats) and large (sheep) models are investigating renal neural-immune interactions in hypertension. This research is currently funded by two NIH grants for which Dr. Osborn serves as the PI;

”Afferent renal nerves, renal inflammation, and hypertension” (R01 HL116476) and “A novel electroceutical tool for treatment of kidney-based diseases” (R21 DK128663). 

In addition, the UMN is a clinical trial site on the use of catheter based renal nerve ablation to treat drug resistant hypertension. Dr. Osborn serves as the PI for the UMN site. “A pivotal, multicenter, blinded sham procedure-controlled trial of renal denervation by the Peregrine Catheter System Kit, in subjects with hypertension” (Ablative Solutions).


2) Global clinical study of the multiorgan responses to acute and chronic vagal nerve stimulation in humans.

Dr. Osborn is the Program Director and contact PI for a newly funded $21M NIH U54 grant to conduct a clinical study on the physiological responses to vagal nerve stimulation (VNS) in humans. Although VNS is currently FDA approved for treatment resistant depression and epilepsy, its effects on various organs systems is unknown. This study, which will be conducted over 3 years, is co-led by Drs. Sayeed Ikramuddin (Surgery), Ziad Nahas (Psychiatry), Hubert Lim (Biomedical Engineering), Lynn Eberly (School of Public Health) at the UMN and Dr. Vaughan Macefield at Monash University in Melbourne Australia.  The study will be conducted across 7 clinical sites and includes nearly 40 UMN faculty including several in the LHI. “Research Evaluating Vagal Excitation and Anatomical Links” (U54AT012307)

Map of REVEAL team locations.

The REVEAL Team includes: University of Minnesota in Minneapolis, MN, Mayo Clinic in Rochester, MN, Washington University in St. Louis, MO, Sheppard Pratt in Baltimore, MD, Medical University of South Carolina in Charleston, SC, Stanford University in Stanford, CA, Scuola Superiore Sant'Anna in Pisa, Italy, LivaNova in London, UK, BIOS Health in Cambridge, UK, and Monash University in Melbourne, Australia.

Learn more by visiting Dr. Osborn's lab website.

Map of REVEAL team locations.
Map of REVEAL team locations.

LHI-CFI Mini-Symposium

On March 2, 2023, the LHI and Center for Immunology (CFI) organized the first LHI-CFI Mini-Symposium. The goal of the symposium was to stimulate new collaborations and to consolidate existing collaborations in a high-priority area: the intersection of the immune system and the cardiovascular system. The symposium showcased three ongoing projects that highlighted the intersection of the immune system with three critical components of the cardiovascular system: the blood vessel, the heart muscle, and the heart valves. The three speakers were:
 
Jesse Williams
Jesse Williams, PhD
Center for Immunology
"Trem2 Regulates Cholesterol-Loaded Foamy Macrophage Lipid Uptake and Survival in Atherosclerosis"
Jop van Berlo, MD, PhD
Jop van Berlo, MD, PhD
Lillehei Heart Institute
"Macrophages vs T Cells: Which Matter More for Cardiac Remodeling?"
Bryce Binstadt

Bryce Binstadt, MD, PhD
Center for Immunology
"Autoimmune Valvular Carditis"

Held at the CCRB, the symposium was attended by approximately 60 faculty, students, and staff from the LHI and CFI.
image link to video of the symposium.


University of Minnesota faculty, students, and staff can view a video of the symposium.

Map of REVEAL team locations.
image link to video of the symposium.

In February, LHI launched a new research initiative: the LHI Collaborative Pilot Grant program. The goal of this program is to stimulate interdisciplinary research in cardiovascular investigation. LHI will fund two multiple-PI projects at $75k per year for 2 years of funding. A full proposal is due by April 1, 2023 and projects will begin this summer.

For more information about this exciting new initiative, visit the program web page.

Map of REVEAL team locations.

New Publications, Grants, and Awards for LHI Members

Check out the full, detailed listing of all publications, grants, and awards.

Featured members this quarter include:

Victor Barocas, PhD
Jason Bartos, MD, PhD
Joan Beckman, MD, PhD
Bryce Binstadt, MD, PhD
Darko Bosnakovski, DVM, PhD
Lin Yee Chen, MD, MS
Daniel Duprez, MD, PhD
Sue Duval, PhD
Mary Garry, PhD
Paul Iaizzo, PhD
Manda Keller-Ross, PhD
Joseph Metzger, PhD
Markus Meyer, MD, PhD
John Osborn, PhD
Rita Perlingeiro, PhD
Alena Talkachova, PhD
Robert Tranquillo, PhD
Michael Tsai, PhD
Jop van Berlo, PhD
Jeremy Van’t Hof, MD
E. Kenneth Weir, MD
An Xie, PhD

Lillehei Heart Institute

2231 6th Street SE, Suite 4-156
Minneapolis, MN 55455

612-625-8988
lhi@umn.edu

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