2022
Effects of gonadotropin-releasing hormone agonist administered in microparticles on sperm quality and quantity, and plasma sex steroid levels in northern pike
KNOWLES, J., S. BORYSHPOLETS, V. KHOLODNYY, D. RAHI, Jakub VYSLOUŽIL et. al.Základní údaje
Originální název
Effects of gonadotropin-releasing hormone agonist administered in microparticles on sperm quality and quantity, and plasma sex steroid levels in northern pike
Autoři
KNOWLES, J. (garant), S. BORYSHPOLETS, V. KHOLODNYY, D. RAHI, Jakub VYSLOUŽIL (203 Česká republika, domácí), Jan MUSELÍK (203 Česká republika, domácí), V. STEJSKAL, J. KOURIL a P. PODHOREC
Vydání
ANIMAL, Amsterdam, Elsevier, 2022, 1751-7311
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30104 Pharmacology and pharmacy
Stát vydavatele
Švýcarsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 3.600
Kód RIV
RIV/00216224:14160/22:00129447
Organizační jednotka
Farmaceutická fakulta
UT WoS
000826439700007
Klíčová slova anglicky
Fish; Maturation; Sperm motility; Sperm production; Sustained drug release
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 27. 2. 2023 13:23, JUDr. Sabina Krejčiříková
Anotace
V originále
Artificial reproduction of northern pike Esox lucius is impeded by the likelihood of obtaining only a small volume of sperm of inconsistent quality. A controlled-release hormone delivery system has the potential to enhance sperm production while avoiding multiple injections The objective of this study was to investigate the effects of mammalian gonadotropin-releasing hormone agonist (mGnRHa) incorporated into poly(lactic-co-glycolic acid) (PLGA) microparticles on milt production, spermatozoon characteristics, and secretion of 17β-estradiol (E2), 11-keto testosterone (11-KT), and testosterone in northern pike. Fish were divided into four groups and injected with 2 mg/kg BW carp pituitary extract (CPE), 20 µg/kg BW mGnRHa in PLGA microparticles, or 20 µg/kg BW mGnRHa plus 20 mg/kg BW metoclopramide (MET) in PLGA microparticles (PLGA + MET), along with a control group injected with 1 ml/kg 0.9% NaCl. At 48 h postinjection, the volume of milt produced was significantly greater in groups treated with CPE and PLGA + MET than in other groups. At 96 h postinjection, all hormone-treated groups exhibited significantly higher spermatozoon average velocity than recorded in the control group. Spermatozoon motility was significantly increased (P < 0.05) in the CPE and PLGA groups compared to baseline values. All treated groups showed significantly lower levels of 11-KT after the hormone injection compared to baseline values and to controls. Plasma testosterone levels increased in all hormone-treated groups. The use of PLGA microparticles, with or without metoclopramide, is suitable for use as a carrier of hormone treatments to regulate spermiation in mature northern pike.
Návaznosti
QK1810221, projekt VaV |
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