Can serum 8-hydroxy-2'-deoxyguanosine levels reflect the severity of pulmonary arterial hypertension?
Rev. Assoc. Med. Bras. (1992)
;
67(10): 1437-1442, Oct. 2021. tab, graf
Article
in English
| LILACS
| ID: biblio-1351424
ABSTRACT
SUMMARY OBJECTIVE:
Oxidative stress plays a pivotal role in the pathogenesis of pulmonary arterial hypertension. 8-Hydroxy-2'-deoxyguanosine is a sensitive biomarker that reflects the degree of oxidative damage to DNA. We investigated whether serum 8-Hydroxy-2'-deoxyguanosine is a clinically useful biomarker for the severity of pulmonary arterial hypertension.METHODS:
We measured serum 8-Hydroxy-2'-deoxyguanosine levels in 25 patients (age 37±13 years, 68% women) diagnosed with idiopathic pulmonary arterial hypertension, familial pulmonary arterial hypertension, or pulmonary arterial hypertension associated with congenital heart disease. The severity of pulmonary arterial hypertension was evaluated by six-min walking distance, World Health Organization functional class, and serum brain natriuretic peptide levels. Age and gender-matched 22 healthy subjects served as the control group.RESULTS:
The comparison of 8-Hydroxy-2'-deoxyguanosine levels between patients and controls was not statistically different [(19.86±9.79) versus (18.80±3.94) ng/mL, p=0.622)]. However, there was a significant negative correlation between 8-Hydroxy-2'-deoxyguanosine levels and six-min walking distance (r= −0.614, p=0.001). Additionally, serum 8-Hydroxy-2'-deoxyguanosine levels in patients with functional class III-IV were significantly higher than those with functional class I-II (functional class III-IV 32.31±10.63 ng/mL versus functional class I-II 16.74±6.81 ng/mL, respectively, p=0.003).CONCLUSION:
The 8-Hydroxy-2'-deoxyguanosine levels were significantly correlated with exercise capacity (six-min walking distance) and symptomatic status (functional class), both of which show the severity of pulmonary arterial hypertension in patients.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Pulmonary Arterial Hypertension
/
Hypertension
Limits:
Adult
/
Humans
/
Male
Language:
English
Journal:
Rev. Assoc. Med. Bras. (1992)
Year:
2021
Type:
Article
Affiliation country:
Turkey
Institution/Affiliation country:
Ege University Medical Faculty/TR
/
Gaziantep University Medical Faculty/TR
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