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Published on: March 10, 2020
A defective angiogenesis in chronic kidney disease
Narisa Futrakul1, Punnee Butthep, Narumon Laohareungpanya
1King Chulalongkorn Memorial Hospital, Bangkok, Thailand.
Insights
Chronic kidney disease (CKD) patients show reduced blood flow, increased vascular injury markers like circulating endothelial cells (CEC), and deficient vascular endothelial growth factor (VEGF). This suggests impaired blood vessel repair in advanced CKD.
Area of Science:
- Nephrology
- Vascular Biology
- Cardiovascular Research
Background:
- Chronic kidney disease (CKD) is associated with progressive reduction in peritubular capillary blood flow.
- Altered vascular homeostasis is suspected in CKD, necessitating verification of underlying mechanisms.
Purpose of the Study:
- To investigate vascular injury in CKD patients.
- To examine the balance between vascular endothelial growth factor (VEGF) and endostatin.
Main Methods:
- Assessment of circulating endothelial cells (CEC) as a marker of vascular injury.
- Quantification of VEGF and endostatin levels.
Main Results:
- CKD patients exhibited deficient VEGF levels.
- Elevated levels of endostatin and CEC were observed in CKD patients.
Conclusions:
- Increased CEC indicates heightened vascular injury activity.
- Deficient VEGF alongside elevated endostatin suggests impaired angiogenesis in CKD.
- This imbalance may explain the progression of renal microvascular disease in advanced CKD.
Background:
A progressive reduction in peritubular capillary flow is observed in chronic kidney disease (CKD) patients as the disease severity progresses. This suggests an altered vascular homeostasis in CKD patients, but such a defective mechanism needs to be verified.
Methods:
To study the vascular injury as reflected by circulating endothelial cell (CEC), the balance between angiogenic factor, vascular endothelial growth factor (VEGF), and antiangiogenic factor, endostatin.
Results:
A deficient VEGF was observed, whereas the value of endostatin and CEC were abnormally elevated in CKD patients.
Discussion:
Enhanced CEC reflects an increased activity of vascular injury. A deficient VEGF in the presence of enhanced antiangiogenesis (endostatin) implies a defective angiogenesis. This may explain the progressive nature of renal microvascular disease observed in late stage of CKD patients.
Related Concept Videos
Chronic Kidney Disease I: Introduction
Diabetic Nephropathy
Regulation of Angiogenesis and Blood Supply
Chronic Kidney Disease II: Clinical Manifestations
Acute Kidney Injury II: Pathophysiology
Chronic Kidney Disease III: Interprofessional Care

