New Bioinformatic Analysis Reveals Role of Proteins in Diabetic Kidney Disease

MDM2 emerges as key; Software could expose metabolomic information of other diseases —

A new bioinformatic framework developed by researchers at University of California San Diego School of Medicine has identified key proteins significantly altered at the gene-expression level in biopsied tissue from patients with diabetic kidney disease, a result that may reveal new therapeutic targets. … Read the Full Story from the UC San Diego Newsroom


Kumar Sharma, MD, FAHADr. Kumar Sharma is lead investigator of the team that published the study report in JCI Insights.Kumar Sharma, MD, is Professor of Medicine in the Division of Nephrology and Hypertension.

He directs the Institute for Metabolomic Medicine and the Center for Renal Translational Medicine at UC San Diego School of Medicine.

Study Report (full text UC San Diego only)

Countdown To Twin Astronaut’s Return – UC San Diego Readies Next Steps in Landmark Study

Study of identical twin astronauts advances NASA’s preparations for mission to Mars —

When astronaut Scott Kelly returns to Earth on March 1, half of NASA’s first-of-its-kind study of twin astronauts and long duration space flight, researchers at University of California, San Diego School of Medicine and elsewhere will launch the mission’s next phase.

UC San Diego School of Medicine researchers are part of a national collaboration between NASA’s Human Research Program, the National Space Biomedical Research Institute and 10 investigative teams around the country, all seeking to better understand the effects of extended space travel by analyzing blood, urine and other samples from identical twin astronauts, Scott and Mark Kelly. … Read the Full Story from the UC San Diego Newsroom


Kumar Sharma, MD, FAHA

Kumar Sharma, MD, FAHA

Kumar Sharma, MD, Professor of Medicine in the Division of Nephrology and Hypertension, is a collaborator in the NASA twins study.

Dr. Sharma is Director of the Institute of Metabolomic Medicine at UC San Diego School of Medicine.

Identical Twin Astronauts Mark and Scott Kelly. Credit: NASA.

Identical Twin Astronauts Mark and Scott Kelly.
Credit: NASA.

Spotting the Earliest Signs of Type 1 Diabetic Kidney Disease

JDRF network grant to fund study to find new types of diagnostic markers —

In an effort to pinpoint the earliest signs of diabetic kidney disease, researchers at University of California, San Diego School of Medicine are leading a multi-institutional international effort dedicated to finding a new breed of disease indicators.

The study, funded by a $2.5 million JDRF (formerly known as the Juvenile Diabetes Research Foundation) grant, will tap the potential of three emerging “omics” sciences to discover new ways to determine which patients are most likely to develop diabetic kidney disease. Samples from more than 2,000 type 1 diabetes patients, collected over a period of years by several medical centers around the world, will be used in the analyses. …Read the full story from the UC San Diego Newsroom


Kumar Sharma, MD, FAHAPrincipal investigator of the study is Kumar Sharma, MD, FAHA, Professor of Medicine in the Division of Nephrology. He directs the Center for Renal Translational Medicine and the Institute of Metabolomic Medicine in UC San Diego School of Medicine.

Researchers Find Key Player in Diabetic Kidney Disease Through Power of Metabolomics

Tapping the potential of metabolomics, an emerging field focused on the chemical processes of metabolism, researchers at University of California, San Diego School of Medicine have identified a new and pivotal player in diabetic kidney disease.

The study, published online July 22 in the Journal of the American Society of Nephrology, also clarifies a central mechanism of action in diabetic kidney disease that is generating considerable excitement among researchers and the biopharmaceutical community. The mechanism, involving the NADPH (nicotinamide adenine dinucleotide phosphate) oxidase (NOX) proteins, NOX1 and NOX4, is now the subject of a phase II clinical trial for the treatment of diabetic kidney disease. … Read the Full Story from the UC San Diego News Center


Kumar Sharma, MD, FAHASenior author of the study report is Kumar Sharma, MD, FAHA, professor of medicine in the Division of Nephrology and director of the Center for Renal Translational Medicine at UC San Diego School of Medicine.

Read the study report in the Journal of the American Society of Nephrology  (UC San Diego Only)

Researchers Boost Body’s Inflammation-Reduction Mechanism to Combat Obesity-Fueled Disease

Researchers at University of California, San Diego School of Medicine and University College Dublin (UCD) have found that augmenting a naturally occurring molecule in the body can help protect against obesity-related diseases by reducing inflammation in the fat tissues. The study, published June 4 in the journal Cell Metabolism, focused on liver and kidney diseases, but the researchers believe it could lead to a new therapeutic approach for a variety of obesity-fueled conditions.

“This is a new way of reducing inflammation and protecting organs, using a compound that’s already produced by the body,” said co-senior author Kumar Sharma, MD, a professor of medicine and director of the Center for Renal Translational Medicine at UC San Diego School of Medicine. “Essentially, we’re boosting the body’s natural response for reducing inflammation and showing the benefit in obesity-driven diseases.” … Read the full story from the UC San Diego Newsroom

UC San Diego Researcher to Lead First-of-Its-Kind NASA Identical Twins Study

Brinda Rana, a professor at the UC San Diego School of Medicine, has been awarded NASA funding to study fluid flows in the brains of identical twin astronauts—one of whom will spend a year in space, while the other is left on Earth. … Read the full story from the UC San Diego News Center

Enzyme Restores Function with Diabetic Kidney Disease

Mouse findings reverse prevailing theory; point to potential treatment options

Researchers at the University of California, San Diego School of Medicine say that, while a prevailing theory suggests elevated cellular levels of glucose ultimately result in diabetic kidney disease, the truth may, in fact, be quite the opposite. The findings could fundamentally change understanding of how diabetes-related diseases develop – and how they might be better treated. … Read the full story from the UC San Diego News Center


Kumar Sharma, MD, FAHA Kumar Sharma, MD, FAHA, senior author of the study report, is professor of medicine and director of the Center for Renal Translational Medicine in the Division of Nephrology-Hypertension.

Dr. Laura DuganFirst author Laura L. Dugan, MD, at right, is professor of neurosciences and professor and chief of the Division of Geriatrics in the Department of Medicine. She holds the Larry L. Hillblom Chair in Geriatric Medicine.

Second author Young-Hyun You is an associate project scientist in the Division of Nephrology-Hypertension,

Other DOM faculty coauthors are Sameh S. Ali, assistant professor of medicine in the Division of Geriatrics, and Robert K. Naviaux, MD, PhD, professor of medicine in the Division of Medical Genetics.

Citation for the study report:

Laura L. Dugan, Young-Hyun You, Sameh S. Ali, Maggie Diamond-Stanic, Satoshi Miyamoto, Anne-Emilie DeCleves, Aleksander Andreyev, Tammy Quach, San Ly, Grigory Shekhtman, William Nguyen, Andre Chepetan, Thuy P. Le, Lin Wang, Ming Xu, Kacie P. Paik, Agnes Fogo, Benoit Viollet, Anne Murphy, Frank Brosius, Robert K. Naviaux and Kumar Sharma. AMPK dysregulation promotes diabetes-related reduction of superoxide and mitochondrial function. J Clin Invest. 2013;123(11):4888–4899. doi:10.1172/JCI66218.  |  Full text (UCSD only)

Related UC San Diego news stories:

Urine Biomarkers Reveal Mitochondrial Dysfunction in Diabetic Kidney Disease

Researchers at the University of California, San Diego School of Medicine have identified 13 metabolites – small molecules produced by cellular metabolism – that are significantly different in patients with diabetes and chronic kidney disease compared to healthy controls. … Read the full story from the UC San Diego News Center


Kumar Sharma, MD, FAHA First author Kumar Sharma, MD, FAHA, is professor of medicine and director of the Center for Renal Translational Medicine in the Division of Nephrology-Hypertension.

Citation for the study report:

Metabolomics Reveals Signature of Mitochondrial Dysfunction in Diabetic Kidney Disease. Kumar Sharma, Bethany Karl, Anna V. Mathew, Jon A. Gangoiti, Christina L. Wassel, Rintaro Saito, Minya Pu, Shoba Sharma, Young-Hyun You, Lin Wang, Maggie Diamond-Stanic, Maja T. Lindenmeyer, Carol Forsblom, Wei Wu, Joachim H. Ix, Trey Ideker, Jeffrey B. Kopp, Sanjay K. Nigam, Clemens D. Cohen, Per-Henrik Groop, Bruce A. Barshop, Loki Natarajan, William L. Nyhan, and Robert K. Naviaux JASN ASN.2013020126; published ahead of print October 10, 2013, doi:10.1681/ASN.2013020126  |  Full text (UCSD only)

Related UC San Diego news stories:

$5.9 Million Grant to UC San Diego for Paradigm-Shifting Diabetes Research

Kumar Sharma, MD, FAHA, professor of medicine at the University of California, San Diego School of Medicine and director of the Center for Renal Translational Medicine, has received a $5.9 million grant from the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), part of the National Institutes of Health, to study kidney complications related to type 1 and type 2 diabetes…. Read the full story from the UCSD Newsroom


Kumar Sharma, MD, FAHADr. Sharma’s project, “Novel Paradigms in Diabetic Complications,” is a five-year Type 1 Diabetes Targeted Research Award.

Read the project abstract

Other Department of Medicine investigators in the project:

UCSD Nephrology Teaming with University of Alabama in O’Brien Center Grant

The Division of Nephrology in UC San Diego’s Department of Medicine has become part of a prestigious national kidney research network with the award of a five-year, $4.23 million O’Brien Research Center grant to the University of Alabama at Birmingham (UAB).

The project, which will bring about $400,000 annually to UCSD, will focus on finding new ways to prevent and to treat kidney failure.

Read the full story
from Health Sciences Communications

UCSD nephrologists, headed by Ravindra L. Mehta, M.D., F.A.C.P., will operate one of the core research efforts in the UAB/UCSD O’Brien Center.

Dr. Mehta, professor of clinical medicine in the Division of Nephrology, is Associate Chair for Clinical Affairs in the Department of Medicine.

Two other UCSD Nephrology researchers will contribute their research expertise in genetics and molecular markers of kidney injury:

The O’Brien Center funding comes from the National Institute of Diabetes and Digestive and Kidney Diseases. There are only eight O’Brien kidney research centers in the United States.

More Information: