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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Pediatr+Res
2018 ; 83
(3
): 702-711
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Prematurity disrupts glomeruli development, whereas prematurity and hyperglycemia
lead to altered nephron maturation and increased oxidative stress in newborn
baboons
#MMPMID29166383
Callaway DA
; McGill-Vargas LL
; Quinn A
; Jordan JL
; Winter LA
; Anzueto D
; Dick EJ Jr
; Blanco CL
Pediatr Res
2018[Mar]; 83
(3
): 702-711
PMID29166383
show ga
BackgroundPremature birth occurs when nephrogenesis is incomplete and has been
linked to increased renal pathologies in the adult. Metabolic factors
complicating preterm birth may have additional consequences for kidney
development. Here, we evaluated the effects of prematurity and hyperglycemia on
nephrogenesis in premature baboons when compared with those in term
animals.MethodsBaboons were delivered prematurely (67% gestation; n=9) or at term
(n=7) and survived for 2-4 weeks. Preterm animals were classified by glucose
control during the first 5 days of life: normoglycemic (PtN; serum glucose
50-100?mg/dl, n=6) and hyperglycemic (PtH; serum glucose 150-250?mg/dl, n=3).
Kidneys were assessed histologically for glomeruli relative area, maturity, size,
and overall morphology. Kidney lysates were evaluated for oxidative damage with
4-hydroxynonenal (4-HNE) antibody.ResultsHistological examination revealed
decreased glomeruli relative area (P<0.05), fewer glomerular generations
(P<0.01), and increased renal corpuscle area (P<0.001) in preterm compared with
those in term animals. Numbers of apoptotic glomeruli were similar between
groups. PtH kidneys exhibited reduced nephrogenic zone width (P<0.0001),
increased numbers of mature glomeruli (P<0.05), and increased 4-HNE staining
compared with those in PtN kidneys.ConclusionPrematurity interrupts normal kidney
development, independent of glomerular cell apoptosis. When prematurity is
complicated by hyperglycemia; kidney development shifts toward accelerated
maturation and increased oxidative stress.