PMID- 38058194 OWN - NLM STAT- Publisher LR - 20231207 IS - 1804-7521 (Electronic) IS - 1213-8118 (Linking) DP - 2023 Dec 6 TI - Levels of retinol and retinoic acid in pancreatic cancer, type-2 diabetes and chronic pancreatitis. LID - 10.5507/bp.2023.049 [doi] AB - AIMS: Retinoids participate in multiple key processes in the human body e.g., vision, cell differentiation and embryonic development. There is growing evidence of the relationship between retinol, its active metabolite- all-trans retinoic acid (ATRA) - and several pancreatic disorders. Although low levels of ATRA in pancreatic ductal adenocarcinoma (PDAC) tissue have been reported, data on serum levels of ATRA in PDAC is still limited. The aim of our work was to determine serum concentrations of retinol and ATRA in patients with PDAC, type-2 diabetes mellitus (T2DM), chronic pancreatitis (CHP) and healthy controls. METHODS: High performance liquid chromatography with UV detection (HPLC) was used to measure serum levels of retinol and ATRA in 246 patients with different stages of PDAC, T2DM, CHP and healthy controls. RESULTS: We found a significant decrease in the retinol concentration in PDAC (0.44(+/-0.18) mg/L) compared to T2DM (0.65(+/-0.19) mg/L, P<0.001), CHP (0.60(+/-0.18) mg/L, P< 0.001) and healthy controls (0.61(+/-0.15) mg/L, P<0.001), significant decrease of ATRA levels in PDAC (1.14(+/-0.49) ug/L) compared to T2DM (1.37(+/-0.56) ug/L, P<0.001) and healthy controls(1.43(+/-0.55) ug/L, P<0.001). Differences between early stages (I+II) of PDAC and non-carcinoma groups were not significant. We describe correlations between retinol, prealbumin and transferrin, and correlation of ATRA and IGFBP-2. CONCLUSION: Significant decrease in retinol and ATRA levels in PDAC compared to T2DM, healthy individuals and/or CHP supports existing evidence of the role of retinoids in PDAC. However, neither ATRA nor retinol are suitable for detection of early PDAC. Correlation of ATRA levels and IGFBP-2 provides new information about a possible IGF and retinol relationship. FAU - Hrabak, Pavel AU - Hrabak P AD - Fourth Department of Internal Medicine, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic. FAU - Zelenkova, Miroslava AU - Zelenkova M AD - Institute of Medical Biochemistry and Laboratory Diagnostics, First Faculty of Medicine, Charles University and General University Hospital in Prague, Czech Republic. FAU - Krechler, Tomas AU - Krechler T AD - Fourth Department of Internal Medicine, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic. FAU - Soupal, Jan AU - Soupal J AD - 3rd Department of Medicine - Department of Endocrinology and Metabolism, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic. FAU - Vocka, Michal AU - Vocka M AD - Department of Oncology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Czech Republic. FAU - Hanus, Tomas AU - Hanus T AD - Department of Urology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Czech Republic. FAU - Petruzelka, Lubos AU - Petruzelka L AD - Department of Oncology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Czech Republic. FAU - Svacina, Stepan AU - Svacina S AD - 3rd Department of Medicine - Department of Endocrinology and Metabolism, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic. FAU - Zak, Ales AU - Zak A AD - Fourth Department of Internal Medicine, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic. FAU - Zima, Tomas AU - Zima T AD - Institute of Medical Biochemistry and Laboratory Diagnostics, First Faculty of Medicine, Charles University and General University Hospital in Prague, Czech Republic. FAU - Kalousova, Marta AU - Kalousova M AD - Institute of Medical Biochemistry and Laboratory Diagnostics, First Faculty of Medicine, Charles University and General University Hospital in Prague, Czech Republic. LA - eng PT - Journal Article DEP - 20231206 PL - Czech Republic TA - Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub JT - Biomedical papers of the Medical Faculty of the University Palacky, Olomouc, Czechoslovakia JID - 101140142 SB - IM OTO - NOTNLM OT - all-trans-retinoic-acid OT - chronic pancreatitis OT - pancreatic ductal adenocarcinoma OT - type-2 diabetes mellitus OT - vitamin A COIS- The authors report no conflicts of interest in this work. EDAT- 2023/12/07 06:42 MHDA- 2023/12/07 06:42 CRDT- 2023/12/07 03:42 PHST- 2023/12/07 06:42 [medline] PHST- 2023/12/07 06:42 [pubmed] PHST- 2023/12/07 03:42 [entrez] AID - 10.5507/bp.2023.049 [doi] PST - aheadofprint SO - Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub. 2023 Dec 6. doi: 10.5507/bp.2023.049.