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2017 ; 7
(1
): 4654
Nephropedia Template TP
gab.com Text
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Twit Text #
English Wikipedia
Electronegative low-density lipoprotein increases the risk of ischemic
lower-extremity peripheral artery disease in uremia patients on maintenance
hemodialysis
#MMPMID28680087
Chang CT
; Shen MY
; Lee AS
; Wang CC
; Chen WY
; Chang CM
; Chang KC
; Stancel N
; Chen CH
Sci Rep
2017[Jul]; 7
(1
): 4654
PMID28680087
show ga
Electronegative low-density lipoprotein (LDL) has been shown to increase coronary
artery disease risk in hemodialysis patients, but its effect on the risk of
peripheral artery disease (PAD) remains unclear. We separated plasma LDL from 90
uremia patients undergoing hemodialysis into 5 subfractions (L1-L5) according to
charge by using fast-protein liquid chromatography with an anion-exchange column
and examined the distribution of L5-the most electronegative LDL subfraction-in
total LDL (i.e. L5%). During a 5-year period, we followed up with these patients
until the occurrence of ischemic lower-extremity PAD. During the follow-up
period, ischemic lower-extremity PAD developed in 24.4% of hemodialysis patients.
L5% was higher in hemodialysis patients in whom ischemic lower-extremity PAD
occurred (3.03% [IQR, 2.36-4.54], n?=?22) than in hemodialysis patients in whom
PAD did not occur (1.13% [IQR, 0.90-1.83], n?=?68) (p?0.001). Furthermore, L5%
significantly increased the adjusted hazard ratio of ischemic lower-extremity PAD
(1.54 [95% CI, 1.14-2.10]) (p?=?0.005). Flow-mediated dilation was negatively
associated with L5% (p?0.001). Additionally, in vivo experiments from mice
showed that L5 compromised endothelium-dependent vascular relaxation through a
nitric oxide-related mechanism. Our findings indicate that increased L5% may be
associated with the occurrence of ischemic lower-extremity PAD in hemodialysis
patients.