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Diabetic Nephropathy (DN) is an important cause of morbidity and death amongst diabetes. Persistent micro and macroalbuminuria are well known predictors of DN leading to progressive end-stage renal disease. However, albuminuria has several limitations. Increasing evidences show that YKL-40 is highly expressed in variety of inflammatory diseases and also recognized as a non-invasive prognostic biomarker for inflammation. In the present study, we measured plasma YKL-40 levels in different stages of albuminuria and assessed its diagnostic accuracy as a biomarker for DN and correlated with different families of circulatory cytokines. A total of 306 subjects were recruited and divided into three groups [Group-I, control (n = 83), Group-II, Normoalbuminuria (n = 81), Group-III, DN (n = 142)]. Group-III is further subdivided into: Group-IIIa, microalbuminuria (n = 73), Group-IIIb, macroalbuminuria (n = 69). The median levels of YKL-40 (p = 0.001) showed a marked stepwise increase from normo to macroalbuminuria and positively correlated with eGFR. The AUC for YKL-40 was found to be high [0.95; (95% CI: 0.88-1.0)], when compared to other acute phase markers. Plasma YKL-40 showed a positive correlation with LIGHT/TNFSF14, sIL-6Ra, gp130/sIL-6Rβ, IFN-β, IL-8, TNFSF14, sCD-30 and eGFR meanwhile a negative correlation with TWEAK/TNFSF12, IL-7 like cytokine and IFN-λ2. Plasma YKL-40 could be a potential biomarker for early diagnosis of incipient DN among South Indian population.
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http://dx.doi.org/10.1016/j.imbio.2018.07.020 | DOI Listing |
Kidney360
September 2025
Division of Nephrology-Hypertension, Department of Medicine, University of California San Diego, San Diego California.
Background: CKD is strongly associated with cardiovascular disease (CVD), yet the etiology responsible for this link remains elusive. Novel blood and urine biomarkers reflecting kidney tubule dysfunction and injury may provide novel insights to mechanisms linking the kidney to CVD.
Methods: In 470 participants of the Multi-Ethnic Study of Atherosclerosis (MESA) without type 2 diabetes, CVD or CKD, we measured six plasma (kidney injury molecule-1 [KIM-1], monocyte chemoattractant protein-1 [MCP-1], soluble urokinase plasminogen activator receptor [suPAR], tumor necrosis factor receptor [TNFR] 1 and 2, and anti-chitinase-3-like protein 1 [YKL-40]) and six urinary (alpha 1 microglobulin [A-1M], epidermal growth factor [EGF], KIM-1, MCP-1, YKL-40 and uromodulin [UMOD]) kidney tubule health biomarkers.
Curr Issues Mol Biol
July 2025
Institute of Clinical Biochemistry, Clinical Molecular Medicine, and Clinical Laboratory Medicine, Department of Biomedicine, Neurosciences, and Advanced Diagnostics, University of Palermo, 90127 Palermo, Italy.
Alzheimer's disease (AD) is the most prevalent neurodegenerative disorder and represents a major public health challenge. With increasing life expectancy, the incidence of AD has also increased, highlighting the need for early diagnosis and improved monitoring. Traditionally, diagnosis has relied on clinical symptoms and neuroimaging; however, the introduction of biomarkers has revolutionized disease assessment.
View Article and Find Full Text PDFMov Disord
August 2025
The Neuro (Montreal Neurological Institute-Hospital), McGill University, Montreal, Quebec, Canada.
Background: Plasma biomarkers of neurodegeneration, astrogliosis, and neuroinflammation have been studied as potential biomarkers in neurodegenerative diseases. This study investigated whether these markers may predict phenoconversion to Parkinson's disease or dementia with Lewy bodies (DLB) in idiopathic/isolated REM sleep behavior disorder (iRBD).
Methods: In this longitudinal, single-center, iRBD cohort study (enrolled 2004-2022), plasma glial fibrillary acidic protein (GFAP), interleukin-6 (IL-6), neurofilament light chain (NfL), snare-associated protein 25 (SNAP25), soluble triggering receptor expressed on myeloid cells 2 (sTREM2), and chitinase 3-like protein (YKL-40) were measured using NeuroToolKit (Roche Diagnostics International Ltd).
Sci Rep
August 2025
Department of Neuroscience, School of Translational Medicine, Faculty of Medicine, Nursing and Health Science, Monash University, Level 6 Alfred Centre, 99 Commercial Road, Melbourne, VIC, 3004, Australia.
Novel therapeutic targets are required to develop new treatments to lower the rates of drug-resistant epilepsy (DRE). This study assessed differences in plasma inflammatory biomarker concentrations and monocyte phenotype and function in patients with DRE versus psychogenic non-epileptic seizures (PNES). Luminex was used to analyse plasma samples from 21 DRE cases and 19 PNES controls for concentrations of selected cytokines and chitinase 3-like 1 (CHI3L1).
View Article and Find Full Text PDFAlzheimers Dement
August 2025
Neurology Service, Marqués de Valdecilla University Hospital, Santander, Cantabria, Spain.
Introduction: The role of neuroinflammation in preclinical Alzheimer's disease (AD) remains unclear.
Methods: We assessed changes in microglial and astrocytic biomarkers in a well-characterized cohort of 211 cognitively unimpaired individuals. Structural equation modeling was used to simultaneously assess all relationships among microglial and astrocytic responses and AD pathological events.