2021
Efficacy of poly (lactic-co-glycolic acid) microparticles as a gonadotropin-releasing hormone analogue delivery system to stimulate ovulation of peled Coregonus peled
KNOWLES, J., Jakub VYSLOUŽIL, Jan MUSELÍK, V. STEJSKAL, J. KOURIL et. al.Základní údaje
Originální název
Efficacy of poly (lactic-co-glycolic acid) microparticles as a gonadotropin-releasing hormone analogue delivery system to stimulate ovulation of peled Coregonus peled
Autoři
KNOWLES, J. (garant), Jakub VYSLOUŽIL (203 Česká republika, domácí), Jan MUSELÍK (203 Česká republika, domácí), V. STEJSKAL, J. KOURIL a P. PODHOREC
Vydání
Czech Journal of Animal Science, Prague, Czech Academy Agricultural Sciences, 2021, 1212-1819
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30104 Pharmacology and pharmacy
Stát vydavatele
Česká republika
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 1.349
Kód RIV
RIV/00216224:14160/21:00119766
Organizační jednotka
Farmaceutická fakulta
UT WoS
000680010100005
Klíčová slova anglicky
induction of ovulation; GnRHa; salmonids; sustained drug release; steroid feedback
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 14. 4. 2022 15:25, JUDr. Sabina Krejčiříková
Anotace
V originále
The aim of the study was to determine the efficacy of poly (lactic-co-glycolic acid) microparticles as a carrier of gonadotropin-relea sing hormone analogues (GnRHa) for induction of ovulation in peled Coregonus peled. Female peled were injected intraperitoneally with 1) saline solution only (control), 2) mammalian GnRHa at 25 vg/kg body weight, 3) GnRHa in 753-type microparticles at 50 vg/kg, or 4) GnRHa in 653-type microparticles at 50 vg/kg. Blood plasma samples were taken on days 0, 4, 8, and 12 post-injection. All hormone treatments induced synchronous ovulation and higher cumulative ovulation compared to controls. Hormone treatments did not affect relative fecundity or the percentage of eyed eggs. Testosterone level decreased toward the onset of ovulation. On day eight of the trial, the testosterone level was significantly lower in hormone-treated groups compared to the control group. The level of 17P-oestradiol showed a decreasing trend post-injection, with the lowest observed level on day eight. Our results demonstrate that ovulation can be induced in the peled by the sustained - release of GnRHa in poly (lactic-co-glycolic acid) microparticles, but the treatment does not improve reproductive performance.
Návaznosti
QK1810221, projekt VaV |
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