... 4ResearchAdiponectin, retinol-binding protein 4, and leptin in protracted critical illness of pulmonary originLies Langouche1, Sarah Vander Perre1, Jan Frystyk2, Allan Flyvbjerg2, Troels ... circulating retinol binding protein and protein Cinhibitor. J Clin Endocrinol Metab 2007, 92:4306-4312.21. Bernard AM, Vyskocil AA, Mahieu P, Lauwerys RR: Assessment of urinary retinol-binding protein ... retinol-binding protein 4 (RBP4), and leptin during critical illness, and the impact of intensive insulin therapy, atherapy shown to affect insulin sensitivity, in serum samples fromprolonged critically...