[Pubmed] Comparison of preoperative urinary Titin levels and serum Titin levels in patients with gastrointestinal malign

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J Gastrointest Oncol. 2026 Jun 30;17(3):146. doi: 10.21037/jgo-2026-1-0176. Epub 2026 May 14.

ABSTRACT

BACKGROUND: In recent years, reports using urinary Titin (U-Titin) levels to evaluate patients with muscular dystrophy, myocardial infarction, myasthenia gravis, gastrointestinal malignancy (GIM), chronic liver disease, and sarcopenia have been sporadically observed; however, reports using serum Titin (S-Titin) levels are scarce. We report here on the measurement of S-Titin, which has now become feasible.

METHODS: This study included 104 patients who underwent surgery for the diagnosis of GIM in our department between May 2024 and November 2025. Preoperative S-Titin and U-Titin levels were measured to investigate their correlation. Furthermore, using InBody, we measured skeletal muscle mass index (SMI), percent body fat (PBF), fat mass index (FMI), extracellular water (ECW)/total body water (TBW) and whole-body phase angle (Ph A) to investigate the relationship with S-Titin and U-Titin.

RESULTS: There were 28 female and 76 male patients, with a median age of 68 (range, 54-89) years. Location of malignant diseases was as follows: 42 cases of hepatobiliary-pancreatic cancer, 36 cases of colorectal cancer, and 26 cases of upper gastrointestinal cancer. S-Titin and U-Titin levels showed a strong positive correlation (r=0.78, y=0.19x+1.40, P

Source: https://pubmed.ncbi.nlm.nih.gov/4243426 ... 4&v=2.20.0