Although the exact cause of cachexia, a common life-threatening complication of CKD, cancer, AIDS and heart failure patients, is unknown, Doernbecher researchers found elevated levels of leptin, a hormone that is produced by fat cells and plays a role in weight regulation, may be the cause. Leptin signals through the hypothalamic melanocortin 4 receptor (MC4-R) pathway in the brain, and blocking this pathway may be an important avenue for treatment, they report. The study was conducted in mice.

"Understanding why patients develop cachexia is important because it is associated with very high mortality in patients with chronic kidney disease," said study investigator Robert Mak, M.D., professor of pediatrics in the OHSU School of Medicine and head of pediatric nephrology, Doernbecher Children's Hospital. "Through this research, we have found a novel therapeutic strategy to combat this life-threatening complication of chronic renal disease, which affects more than 10 percent of the population and costs $40 billion each year to treat."

MEDICA.de; Source: Oregon Health & Science University