Key result
Urinary proteomic analysis in a patient with exercise-induced rhabdomyolysis and acute kidney injury revealed elevated levels of specific muscle and kidney damage proteins that correlated with clinical recovery.
Why the study?
Exertional rhabdomyolysis has risen in the healthy population and can cause life-threatening complications like acute kidney injury, requiring early diagnosis and prompt management.
Case Report (n=1)
No
Urinary proteomics can serve as a non-invasive method for monitoring pathophysiological changes and identifying biomarkers in exercise-induced rhabdomyolysis and associated acute kidney injury.
Answers are grounded in this paper and cite their sources.
May support urinary proteomics for non-invasive monitoring in rhabdomyolysis with AKI; hypothesis-generating from one case and needs validation.
Exertional rhabdomyolysis (ER) is a frequently observed consequence following sustained strenuous exercise. The incidence of exercise-induced rhabdomyolysis has risen in the healthy population in recent decades, posing potential systemic, life-threatening complications like acute kidney injury (AKI). Early diagnosis requires prompt identification and management to prevent morbidity. This case report details the presentation of a 24-year-old male military member from the amphibious command specialization course, who attended the hospital emergency room with symptoms of nausea and dark brown urine 24 hours after strenuous military physical training. Laboratory results revealed a significant elevation in serum creatine kinase (CK) and creatinine (Cre) levels, reaching 9300 IU/L and 5.7 mg/dL, respectively. Concurrently, liver enzymes and urea levels were elevated, leading to the diagnosis of both ER and AKI. The individual exhibited a polygenic risk profile for ER, increasing susceptibility to inflammation and muscle damage. Further investigation through urine proteomic analysis unveiled the presence of various proteins associated with muscle damage, including creatine kinase M (CKM), myoglobin (MB), carbonic anhydrase (CA1), titin (TTN), as well as proteins linked to AKI, such as alpha-2-macroglobulin (A2MG), beta-2-microglobulin (B2MG), insulin-like growth factor-binding protein 7 (IBP7), metalloproteinase inhibitor 1 (TIMP1), and uromodulin (UROM), among others. Following a 12-day intensive care unit (ICU) treatment, a notable reduction in CK and MB levels was observed, accompanied by the restoration of renal function to normal levels. Subsequent laboratory tests during outpatient follow-up, two weeks after discharge, confirmed the normalization of relevant markers. The utilization of urinary proteomics emerged as a non-invasive method for monitoring pathophysiological changes, offering valuable insights into the mechanisms underlying ER and associated AKI.
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Silva et al. (2024) conducted a case report in Exercise-Induced Rhabdomyolysis with Acute Kidney Injury (n=1). Strenuous military physical training vs. Baseline (pre-training) and hospital discharge was evaluated on Changes in urinary proteome and clinical biomarkers (CK, Creatinine). Urinary proteomic analysis in a patient with exercise-induced rhabdomyolysis and acute kidney injury revealed elevated levels of specific muscle and kidney damage proteins that correlated with clinical recovery.
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