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Updated: Mar 24, 2026
Calcification of Vascular Smooth Muscle Cells and Imaging of Aortic Calcification and Inflammation
Published on: May 31, 2016
Gelsolin and Progression of Aortic Arch Calcification in Chronic Hemodialysis Patients
Terry Ting-Yu Chiou1, Shang-Chih Liao1, Yu-Yin Kao1
11. Division of Nephrology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang-Gung University College of Medicine, Taiwan.
Insights
Vascular calcification progression is higher in hemodialysis patients with baseline aortic arch calcification. Lower gelsolin levels are linked to this progression, suggesting a potential therapeutic target.
Area of Science:
- Cardiovascular Medicine
- Nephrology
- Biochemistry
Background:
- Vascular calcification (VC) is a significant risk factor for cardiovascular mortality in dialysis patients.
- Gelsolin, an actin-binding protein, influences inflammation and bone homeostasis, with inverse correlation to hemodialysis mortality.
- Understanding VC progression and its modulators is crucial for patient outcomes.
Purpose of the Study:
- To characterize the progression of aortic arch calcification (AAC) in hemodialysis (HD) patients.
- To investigate the association between gelsolin levels and the progression of AAC.
- To identify factors associated with AAC progression in this patient cohort.
Main Methods:
- 184 hemodialysis patients were monitored over 4 years using annual chest X-rays (CXR) to assess AAC severity (grade 0-3).
- Blood gelsolin levels were quantified using ELISA kits.
- Baseline demographic, biochemical data, and AAC status were analyzed for associations with 4-year AAC changes.
Main Results:
- Aortic arch calcification prevalence increased from 60% to 77% over 4 years.
- Patients with baseline grade 1 or 2 AAC showed significantly increased risk of progression (OR 2-3, P=0.001).
- Progressive AAC was associated with older age, lower gelsolin, higher waist circumference, and prevalent vascular disease; lower baseline gelsolin was an independent predictor (OR 0.845).
Conclusions:
- Hemodialysis patients with baseline grades 1 or 2 aortic arch calcification face a higher risk of progression.
- Lower blood gelsolin levels are significantly associated with progressive vascular calcification in this population.
- Further research into gelsolin's role in vascular calcification may offer new therapeutic strategies.
Background:
Vascular calcification (VC) is a key process associated with cardiovascular mortality in dialysis patients. Gelsolin is an actin-binding protein that can modulate inflammation, correlated inversely with hemodialysis (HD) mortality and involved in bone calcification homeostasis. In this report, we aim to characterize progression in aortic arch calcification (AAC) and investigate its association with gelsolin.
Methods:
184 HD patients were enrolled and their annual posterior-anterior chest X-ray films (CXR) in 2009 and 2013 were examined. The severity of AAC was classified as grade 0 to 3. Blood levels of gelsolin were measured by ELISA kits. Biographic and biochemical data at baseline were analyzed with status of AAC at baseline and changes after 4 years.
Results:
At baseline, 60% of the patients had detectable AAC on CXR. After 4 years, 77% had AAC. Patients with grade 1 and 2 AAC had increased risk of progression (Odds ratio [OR] 2~3, P=0.001) compared to those with grade 0 at baseline. Compared to those with no AAC, patients with AAC progression had older age, lower gelsolin, higher waist circumference and prevalence of vascular disease. Regression analysis confirmed baseline gelsolin (odds ratio 0.845, 95% confidence interval [0.734-0.974]) and waist circumference as the independent factors associated with AAC progression. Gelsolin is positively correlated with serum albumin and negatively with tumor necrosis factor-alpha.
Conclusion:
Our study demonstrated that HD patients with grades 1 or 2 baseline AAC are at increased risk of further progression compared to those with grade 0. We also found lower blood levels of gelsolin associated with progressive AAC. Further investigation into the mechanistic roles of gelsolin in vascular calcification may provide new understanding of this key process.
