{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,15]],"date-time":"2026-09-15T20:29:01Z","timestamp":1789504141647,"version":"build-2803163510"},"reference-count":48,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2021,12,10]],"date-time":"2021-12-10T00:00:00Z","timestamp":1639094400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"This study was supported by a statutory grant from the Jagiellonian University Medical College (N41\/DBS\/000193; to K.K).","award":["N41\/DBS\/000193"],"award-info":[{"award-number":["N41\/DBS\/000193"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Medicina"],"abstract":"<jats:p>Background and Objectives: Urine insulin-like growth factor-binding protein 7 (IGFBP-7), tissue inhibitor of matrix metalloproteinase 2 (TIMP-2), and neutrophil gelatinase-associated lipocalin (NGAL) monomer are novel tubular kidney injury biomarkers. In multiple myeloma (MM), immunoglobulin free light chains (FLCs) play an integral role in renal impairment. This study aimed to investigate the correlation between new biomarkers and acclaimed parameters of renal failure, MM stage, and prognosis. Materials and Methods: The examined parameters included: urinary and serum cystatin-C, IGFBP-7, and TIMP-2, and urinary NGAL monomer in 124 enrolled patients. Results: Urinary and serum IGFBP-7 and urinary NGAL were higher among patients with an estimated glomerular filtration rate (eGFR) &lt; 60 mL\/min\/1.73 m2, and positively correlated with urine light chains. Serum and urine IGFBP-7 and urine NGAL were greater among patients with a higher disease stage. In the whole study group, urinary concentrations of the studied markers were positively correlated with each other. In multiple linear regression, urinary IGFBP-7 and NGAL were associated with lower eGFR, independently of other urinary markers. Conclusions: Urinary IGFBP-7 and NGAL monomer may be useful markers of tubular renal damage in patients with MM. Biomarker-based diagnostics may contribute to earlier treatment that may improve renal outcomes and life expectancy in MM.<\/jats:p>","DOI":"10.3390\/medicina57121348","type":"journal-article","created":{"date-parts":[[2021,12,10]],"date-time":"2021-12-10T02:07:18Z","timestamp":1639102038000},"page":"1348","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Renal Impairment Detectors: IGFBP-7 and NGAL as Tubular Injury Markers in Multiple Myeloma Patients"],"prefix":"10.3390","volume":"57","author":[{"given":"Karolina","family":"Woziwodzka","sequence":"first","affiliation":[{"name":"Department of Nephrology, Jagiellonian University Medical College, 30-688 Krak\u00f3w, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8701-8171","authenticated-orcid":false,"given":"Jolanta","family":"Ma\u0142yszko","sequence":"additional","affiliation":[{"name":"Department of Nephrology, Dialysis and Internal Medicine, Medical University of Warsaw, 02-091 Warsaw, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4606-219X","authenticated-orcid":false,"given":"Ewa","family":"Koc-\u017b\u00f3rawska","sequence":"additional","affiliation":[{"name":"Second Department of Nephrology and Hypertension with Dialysis Unit, Medical University of Bialystok, 15-276 Bialystok, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2484-1579","authenticated-orcid":false,"given":"Marcin","family":"\u017b\u00f3rawski","sequence":"additional","affiliation":[{"name":"Department of Clinical Medicine, Medical University of Bialystok, 15-254 Bialystok, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3667-857X","authenticated-orcid":false,"given":"Paulina","family":"Dumnicka","sequence":"additional","affiliation":[{"name":"Department of Medical Diagnostics, Jagiellonian University Medical College, 30-688 Krak\u00f3w, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Artur","family":"Jurczyszyn","sequence":"additional","affiliation":[{"name":"Departament of Hematology, Jagiellonian University Medical College, Kopernika 17, 30-501 Krak\u00f3w, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Krzysztof","family":"Batko","sequence":"additional","affiliation":[{"name":"Department of Nephrology, Jagiellonian University Medical College, 30-688 Krak\u00f3w, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8945-0726","authenticated-orcid":false,"given":"Paulina","family":"Mazur","sequence":"additional","affiliation":[{"name":"Department of Medical Diagnostics, Jagiellonian University Medical College, 30-688 Krak\u00f3w, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ma\u0142gorzata","family":"Banaszkiewicz","sequence":"additional","affiliation":[{"name":"Department of Nephrology, Jagiellonian University Medical College, 30-688 Krak\u00f3w, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marcin","family":"Krzanowski","sequence":"additional","affiliation":[{"name":"Department of Nephrology, Jagiellonian University Medical College, 30-688 Krak\u00f3w, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Paulina","family":"Go\u0142asa","sequence":"additional","affiliation":[{"name":"Department of Nephrology, Jagiellonian University Medical College, 30-688 Krak\u00f3w, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jacek A.","family":"Ma\u0142yszko","sequence":"additional","affiliation":[{"name":"First Department of Nephrology and Transplantology with Dialysis Unit, Medical University of Bialystok, 15-540 Bialystok, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9921-6108","authenticated-orcid":false,"given":"Ryszard","family":"Dro\u017cd\u017c","sequence":"additional","affiliation":[{"name":"Department of Medical Diagnostics, Jagiellonian University Medical College, 30-688 Krak\u00f3w, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8120-8994","authenticated-orcid":false,"given":"Katarzyna","family":"Krzanowska","sequence":"additional","affiliation":[{"name":"Department of Nephrology, Jagiellonian University Medical College, 30-688 Krak\u00f3w, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2021,12,10]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"237","DOI":"10.1111\/ejh.13083","article-title":"Rapidly changing myeloma epidemiology in the general population: Increased incidence, older patients, and longer survival","volume":"101","author":"Turesson","year":"2018","journal-title":"Eur. 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