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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 PLoS+One
2017 ; 12
(5
): e0177934
Nephropedia Template TP
gab.com Text
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English Wikipedia
Beneficial effect of combined treatment with octreotide and pasireotide in PCK
rats, an orthologous model of human autosomal recessive polycystic kidney
disease
#MMPMID28542433
Kugita M
; Nishii K
; Yamaguchi T
; Suzuki A
; Yuzawa Y
; Horie S
; Higashihara E
; Nagao S
PLoS One
2017[]; 12
(5
): e0177934
PMID28542433
show ga
Increased intracellular cyclic AMP (cAMP) in renal tubular epithelia accelerates
the progression of polycystic kidney disease (PKD). Thus, decreasing cAMP levels
by an adenylyl cyclase inhibitory G protein activator is considered to be an
effective approach in ameliorating PKD. In fact, pasireotide (PAS) was effective
in reducing disease progression in animal models of PKD. However, hyperglycemia
caused by the administration of PAS is an adverse effect in its clinical use.
Whereas, co-administration of octreotide (OCT) with PAS did not increase serum
glucose in normal rats. In the current study, we examined the efficacy of
combined treatment with OCT and PAS in PCK rats, an autosomal recessive PKD
model. Four-week-old PCK males were treated with the long-acting release type of
OCT, PAS, or a combination of both (OCT/PAS) for 12 weeks. After termination,
serum and renal tissue were used for analyses. Kidney weight, kidney weight per
body weight, renal cyst area, renal Ki67 expression, and serum urea nitrogen were
significantly decreased either in the PAS or OCT/PAS group, compared with
vehicle. Renal tissue cAMP content was significantly decreased by PAS or OCT/PAS
treatment, but not OCT, compared with vehicle. As a marker of cellular mTOR
signaling activity, renal phospho-S6 kinase expression was significantly
decreased by OCT/PAS treatment compared with vehicle, OCT, or PAS. Serum glucose
was significantly increased by PAS administration, whereas no difference was
shown between vehicle and OCT/PAS, possibly because serum glucagon was decreased
either by the treatment of OCT alone or co-application of OCT/PAS. In conclusion,
since serum glucose levels are increased by the use of PAS, its combination with
OCT may reduce the risk of hyperglycemia associated with PAS monotherapy against
PKD progression.