Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\25989955
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Endocrine
2015 ; 50
(3
): 633-42
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Elevated ratio of acylated to unacylated ghrelin in children and young adults
with Prader-Willi syndrome
#MMPMID25989955
Kuppens RJ
; Dične G
; Bakker NE
; Molinas C
; Faye S
; Nicolino M
; Bernoux D
; Delhanty PJ
; van der Lely AJ
; Allas S
; Julien M
; Delale T
; Tauber M
; Hokken-Koelega AC
Endocrine
2015[Dec]; 50
(3
): 633-42
PMID25989955
show ga
Prader-Willi syndrome (PWS) is characterized by a switch from failure to thrive
to excessive weight gain and hyperphagia in early childhood. Hyperghrelinemia may
be involved in the underlying mechanisms of the switch. The purpose of this study
is to evaluate acylated ghrelin (AG) and unacylated ghrelin (UAG) levels in PWS
and investigate their associations with hyperphagia. This is a cross-sectional
clinical study conducted in three PWS expert centers in the Netherlands and
France. Levels of AG and UAG and the AG/UAG ratio were determined in 138 patients
with PWS (0.2-29.4 years) and compared with 50 age-matched obese subjects
(4.3-16.9 years) and 39 healthy controls (0.8-28.6 years). AEBSF was used to
inhibit deacylation of AG. As a group, PWS patients had higher AG but similar UAG
levels as healthy controls (AG 129.1 vs 82.4 pg/ml, p = 0.016; UAG 135.3 vs 157.3
pg/ml, resp.), resulting in a significantly higher AG/UAG ratio (1.00 vs 0.61, p
= 0.001, resp.). Obese subjects had significantly lower AG and UAG levels than
PWS and controls (40.3 and 35.3 pg/ml, resp.), but also a high AG/UAG ratio
(1.16). The reason for the higher AG/UAG ratio in PWS and obese was, however,
completely different, as PWS had a high AG and obese a very low UAG. PWS patients
without weight gain or hyperphagia had a similar AG/UAG ratio as age-matched
controls, in contrast to those with weight gain and/or hyperphagia who had an
elevated AG/UAG ratio. The switch to excessive weight gain in PWS seems to
coincide with an increase in the AG/UAG ratio, even prior to the start of
hyperphagia.