Evidence mapPaperPMID 42232011Full record

ArticleCureus2026

Redox Stress Biomarkers and Their Association With Renal Dysfunction in Chronic Kidney Disease.

Sri Lakshmi Kothakapa, Sulekha Ramireddy, Sanjay Reddy Thanugundla, Parimi Vamsi Krishna, Sainithya Chittireddy, Muralidhar Chinnapaka

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Article in Cureus, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

6 authors.

Sri Lakshmi KothakapaInternal Medicine, Malla Reddy Institute of Medical Sciences, Hyderabad, IND.
Sulekha RamireddyGeneral Medicine, Malla Reddy Institute of Medical Sciences, Hyderabad, IND.
Sanjay Reddy ThanugundlaGeneral Medicine, Malla Reddy Institute of Medical Sciences, Hyderabad, IND.
Parimi Vamsi KrishnaInternal Medicine, J.J.M. Medical College, Davangere, IND.
Sainithya ChittireddyGeneral Medicine, Malla Reddy Institute of Medical Sciences, Hyderabad, IND.
Muralidhar ChinnapakaPharmacology, Government Medical College and Hospital, Maheshwaram, Hyderabad, IND.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundChronic kidney disease (CKD) is characterised by progressive loss of renal function and is closely associated with enhanced oxidative and nitrosative stress. Excess production of reactive oxygen and nitrogen species contributes to cellular injury, inflammation, and accelerated disease progression. This study aimed to evaluate oxidative and nitrosative stress markers in CKD patients and compare them with healthy controls.

methodsA hospital-based case-control study was conducted, including 80 diagnosed CKD patients and 80 age- and sex-matched healthy individuals. Blood samples were analysed for markers of oxidative stress, such as malondialdehyde (MDA), superoxide dismutase (SOD), and catalase, along with nitrosative stress marker nitric oxide (NO). Standard biochemical methods were used for estimation. Statistical analysis was performed using appropriate parametric and non-parametric tests, with p < 0.05 considered significant.

resultsPatients with CKD demonstrated significantly greater oxidative and nitrosative stress than healthy controls, as reflected by higher malondialdehyde levels (5.8 ± 1.2 vs. 2.9 ± 0.8 nmol/mL, p < 0.001) and nitric oxide levels (62.4 ± 10.5 vs. 34.7 ± 7.9 µmol/L, p < 0.001). Antioxidant enzyme activity was significantly reduced in the CKD group, with superoxide dismutase measuring 1.9 ± 0.6 U/mL compared with 3.8 ± 0.9 U/mL in controls, and catalase measuring 28.5 ± 6.7 kU/L compared with 46.2 ± 8.1 kU/L, respectively (p < 0.001 for both). Estimated glomerular filtration rate was negatively correlated with malondialdehyde levels among CKD patients, suggesting that oxidative stress increased as renal function declined (r = -0.62, p < 0.001).

conclusionThe findings indicate a pronounced imbalance between oxidant production and antioxidant defence in CKD. Elevated oxidative and nitrosative stress may play a key role in disease progression and complications. Monitoring these biomarkers could aid in early intervention and therapeutic strategies targeting oxidative damage.

Indexed as

antioxidantscatalasechronic kidney diseasemalondialdehydenitric oxidenitrosative stressoxidative stresssod

Identifiers

PMID42232011
PMCPMC13223340

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.