Comparative evaluation of oxidative stress biomarkers F2-isoprostanes and 8-OHdG in Parkin

A 2026 systematic review and meta-analysis by Samwel Sylvester Msigwa, aggregating results from 54 unique studies involving 7,521 human subjects aged 50 years and older. The study compares levels of oxidative stress biomarkers F2-isoprostanes and 8-OHdG in individuals with Type 2 Diabetes Mellitus, Parkinson's disease, and control groups. It quantifies standardized differences using mixed-effects models and discusses the distinct biomarker profiles observed in each condition.

Use Cases

• Compare biomarker elevation patterns between Parkinson's disease and Type 2 Diabetes based on the aggregated effect sizes (Hedges' g) reported.
• Investigate sources of heterogeneity in oxidative stress studies, such as sample type (serum/plasma/leukocytes) or patient complications, as highlighted in the analysis.
• Identify potential therapeutic targets by analyzing the distinct profiles where 8-OHdG was elevated in both conditions but F2-isoprostanes were not significantly elevated in Parkinson's disease.
• Design future longitudinal studies or standardized assays based on the methodological gaps and recommendations outlined in the review.

Strengths

• Aggregates data from 54 unique studies with a total sample size of 7,521 human subjects.
• Provides quantified effect sizes (Hedges' g) with 95% confidence intervals for biomarker comparisons across disease subgroups.
• Analyzes subgroups based on factors like age, sample type, and disease complications, revealing specific patterns of oxidative stress.

Limitations

• The dataset is a 385.6 KB DOCX document containing the review text; the underlying primary data tables are not provided as a structured, machine-readable file.
• Column-level documentation is absent; field semantics must be inferred from the manuscript text after download.
• High statistical heterogeneity (I² > 90%) in the Type 2 Diabetes analysis is noted, reflecting methodological variability across the included studies.

Provenance

Source

figshare

Collection Method

Systematic review and meta-analysis of existing human studies.

Time Range

Studies included involve human subjects aged ≥ 50 years; specific publication years of the 54 source studies are not provided.

Freshness

Last updated 2026-04-20 07:28:47; freshness should be verified.

Geography

null