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2016 ; 16
(1
): 151
Nephropedia Template TP
gab.com Text
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Twit Text #
English Wikipedia
Differences in GlycA and lipoprotein particle parameters may help distinguish
acute kawasaki disease from other febrile illnesses in children
#MMPMID27596163
Connelly MA
; Shimizu C
; Winegar DA
; Shalaurova I
; Pourfarzib R
; Otvos JD
; Kanegaye JT
; Tremoulet AH
; Burns JC
BMC Pediatr
2016[Sep]; 16
(1
): 151
PMID27596163
show ga
BACKGROUND: Glycosylation patterns of serum proteins, such as ?1-acid
glycoprotein, are modified during an acute phase reaction. The response of acute
Kawasaki disease (KD) patients to IVIG treatment has been linked to sialic acid
levels on native IgG, suggesting that protein glycosylation patterns vary during
the immune response in acute KD. Additionally, the distribution and function of
lipoprotein particles are altered during inflammation. Therefore, the aim of this
study was to explore the potential for GlycA, a marker of protein glycosylation,
and the lipoprotein particle profile to distinguish pediatric patients with acute
KD from those with other febrile illnesses. METHODS: Nuclear magnetic resonance
was used to quantify GlycA and lipoprotein particle classes and subclasses in
pediatric subjects with acute KD (n?=?75), post-treatment subacute (n?=?36) and
convalescent (n?=?63) KD, as well as febrile controls (n?=?48), and age-similar
healthy controls (n?=?48). RESULTS: GlycA was elevated in acute KD subjects
compared to febrile controls with bacterial or viral infections, IVIG-treated
subacute and convalescent KD subjects, and healthy children (P <0.0001). Acute KD
subjects had increased total and small low density lipoprotein particle numbers
(LDL-P) (P <0.0001) and decreased total high density lipoprotein particle number
(HDL-P) (P <0.0001) compared to febrile controls. Consequently, the ratio of
LDL-P to HDL-P was higher in acute KD subjects than all groups tested (P
<0.0001). While GlycA, CRP, erythrocyte sedimentation rate, LDL-P and LDL-P/HDL-P
ratio were able to distinguish patients with KD from those with other febrile
illnesses (AUC?=?0.789-0.884), the combinations of GlycA and LDL-P (AUC?=?0.909)
or GlycA and the LDL-P/HDL-P ratio (AUC?=?0.910) were best at discerning KD in
patients 6-10 days after illness onset. CONCLUSIONS: High levels of GlycA confirm
enhanced protein glycosylation as part of the acute phase response in KD
patients. When combined with common laboratory tests and clinical
characteristics, GlycA and NMR-measured lipoprotein particle parameters may be
useful for distinguishing acute KD from bacterial or viral illnesses in pediatric
patients.