Lycium barbarum polysaccharide inhibited hypoxia-inducible factor 1 in COPD patients.

PMID: 

Int J Chron Obstruct Pulmon Dis. 2020 ;15:1997-2004. Epub 2020 Aug 24. PMID: 32921997

Abstract Title: 

Polysaccharide Inhibited Hypoxia-Inducible Factor 1 in COPD Patients.

Abstract: 

Background: Chronic obstructive pulmonary disease (COPD) is a chronic airway inflammatory disease characterized by irreversible airflow obstruction. Pathogenic mechanisms underlying COPD remain largely unknown.Objective: The current study was designed to explore serum concentration of hypoxia-inducible factor 1α (HIF-1α) in stable COPD patients and the potential effect ofpolysaccharides (LBP) on HIF-1α protein expression.Methods: Serum HIF-1α was quantified by ELISA in 102 stable COPD patients before and after 2-week orally taken LBP (100 mL/time, twice daily, 5-15 mg/mL). Correlation of serum LBP and lung function (FEV1%) or blood gas (POand PCO) was also analyzed. As a control, 105 healthy subjects were also enrolled into this study.Results: Serum concentration of HIF-1α was significantly higher in the stable COPD patients (37.34 ± 7.20 pg/mL) than that in the healthy subjects (29.55 ± 9.66 pg/mL,

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