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En Face Detection of Nitric Oxide and Superoxide in Endothelial Layer of Intact Arteries

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Urinary catalytic iron in obesity.

Tina K Thethi¹, Kaushik Parsha, Mohan Rajapurkar

¹Tulane University Health Sciences Center, New Orleans, Louisiana, USA. tthethi@tulane.edu

Clinical Chemistry

|December 30, 2010

Summary

Obese individuals show significantly higher urinary catalytic iron levels, a potential marker for oxidative stress. This finding suggests a link between obesity, iron metabolism, and related chronic diseases.

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Area of Science:

Biochemistry
Metabolic Health
Nephrology

Background:

Obesity is a precursor to cardiovascular disease risk factors like type 2 diabetes mellitus (DM), hypertension, and chronic kidney disease.
Catalytic iron is implicated in these chronic diseases, potentially linking obesity to these conditions.

Purpose of the Study:

To investigate elevated urinary catalytic iron in obese individuals without diagnosed DM or kidney disease.

Main Methods:

A cross-sectional study measured urinary catalytic iron in 200 adults (100 obese, 100 non-obese) aged 18-70.
Participants were selected from an outpatient clinic and community setting, excluding those with DM.

Main Results:

Obese participants exhibited significantly higher mean urinary catalytic iron excretion compared to non-obese individuals (P < 0.001).
Obesity and waist-to-hip ratio were identified as significant predictors of increased urinary catalytic iron.

Conclusions:

Obesity and waist-to-hip ratio correlate with elevated urinary catalytic iron, suggesting its potential as an oxidative stress biomarker.
Further research is required to elucidate the role of catalytic iron in obesity-related cardiovascular and kidney diseases.