Response of the somatotropic axis to alterations in feed intake of channel catfish (Ictalurus punctatus)

Peterson, Brian; Bilodeau‐Bourgeois, A. Lelania; Small, Brian C.

doi:10.1016/j.cbpa.2009.04.614

Cited by 16 publications

(3 citation statements)

References 58 publications

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“…IGF-I mRNA in skeletal muscle and liver tissues were measured with the technique described by Peterson et al (2009). Quantitative real-time polymerase chain reaction (qPCR) was performed using the iCycler iQ RT-PCR detection system (BioRad, Hercules, CA, USA) to quantify IGF-I and ribosomal 18S subunit mRNA.…”

Section: Blood and Gene Expression Analysismentioning

confidence: 99%

“…The regulation of GH, T 3 and T 4 axes in fish involves multifactorial controls (MacKenzie et al, 1993;Riley et al, 1996;Gaylord et al, 2001;Peterson and Small, 2005;Peterson et al, 2009). Food intake and quality of feed, including amino acid profile, have a direct influence on growth-related hormone dynamics in several fish species (Matty, 1986) including red drum, Sciaenops ocellatus (MacKenzie et al, 1993), gilthead sea bream, Sparus aurata (Gómez-Requeni et al, 2003), rainbow trout, Oncorhynchus mykiss (Riley et al, 1996), chinook salmon, Oncorhynchus tshawytscha (Pierce et al, 2005), tilapia, Oreochromis mossambicus (Fox et al, 2010) and channel catfish, Ictalurus punctatus (Gaylord et al, 2001;Peterson et al, 2009). Some studies have reported a direct secretagogue effect of ARG on fish hormones, but these have mainly focused on its insulinotropic potential.…”

Section: Introductionmentioning

confidence: 99%

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Effects of dietary arginine on endocrine growth factors of channel catfish, Ictalurus punctatus

Pohlenz

Buentello

Miller

et al. 2013

Comparative Biochemistry and Physiology Part A: Molecular &

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Section: Blood and Gene Expression Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of dietary arginine on endocrine growth factors of channel catfish, Ictalurus punctatus

Pohlenz

Buentello

Miller

et al. 2013

Comparative Biochemistry and Physiology Part A: Molecular &

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“…This extended family of IGFBPs includes IGFBP-related protein (IGFBP-rP), which also regulates IGF activity (Rodgers et al, 2008). through receptors on target tissues resulting in increased growth (Peterson et al, 2009). Serum concentrations of IGF-I stimulate or suppress GH release from the anterior pituitary via feedback on m mammals and lower vertebrates, as has been demonstrated especially in bony fish.…”

Section: Resultsmentioning

confidence: 99%

Modification of Carp (Osphronemus Gouramy) Growth with Insulin-Like Growth Factor-I Recombinant Mouse in Vivo

Restiadi,

Satyantini,

Triakoso

2023

J. Adv. Zool.

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Osphronemus gouramy consumption is increasing every year, which causes a high number of inquiries for this fish, which cannot be offset sufficiently by the amount of production. The growth rate of O. gouramy is relatively slow, so achieving the required consumption is relatively long. Quality improvement of productivity by improving the ability of cell metabolism to intake fish feed through hormone injection recombinant mouse insulin-like growth factor-I (IGF-I) is expected to spur growth so that fish production can be increased. This study aims to determine the effect of the hormone IGF-I recombinant mouse on the increased growth of O. gouramy. The benefits of this research are expected to deliver the benefits of science in the form of scientific information to the public in general and fish farmers, especially about the effect of the hormone recombinant mouse IGF-I on the growth of O. gouramy. The research method is carried out experimentally by using a completely randomized design (RAL); this study uses 80 O. gouramy was divided into 4 treatments P0: without hormone injections of IGF-I, P1: injected with the hormone IGF-I at a dose of 10 ng/ml, P2: injected with the hormone IGF-I at a dose of 20 ng/ml and P3: injected with the hormone at a dose of 40 ng/ml each of 5 replicates each test 4 tail O. gouramy. The hormone IGF-I recombinant mouse is done by injection. The treatment with hormone injection of recombinant mouse IGF-I. The parameters measured were growth. The results showed that the treatment hormone injection of recombinant mouse IGF-I with different doses gave significant differences (p <0.05); weight growth (P0: 0 ng/ml = 7,23 gram ± 0,37-gram dan P3: 40 ng/ml = 26,35 gram ± 1,89 gram.); length growth (P0 : 0 ng/ml = 5,76 cm ± 0,38 cm dan P3: 40 ng/ml = 7,93 cm ± 0,07 cm). The conclusion is that recombinant mouse IGF-I increased the growth by increasing in weight and length of O. gouramy, and improvement of the growth occurred in the treatment injection of the dose: 40 ng/ml.

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GH, IGF-I and GH receptors mRNA expression in response to growth impairment following a food deprivation period in individually housed cichlid fish Cichlasoma dimerus

Delgadin

Sirkin

Yorio

et al. 2014

Fish Physiol Biochem

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Cichlasoma dimerus is a social cichlid fish capable of growing at high rates under laboratory conditions, but knowledge on somatic growth regulation is still unclear. Growth hormone (GH)/insulin-like growth factor I (IGF-I) axis is the key regulator of somatic growth in vertebrates. Two types of growth hormone receptors have been described in teleost fish, named GH receptor type 1 (GHR1) and type 2 (GHR2). In addition, isoforms of these receptors lacking part of the intracellular region have been described. The aim of this study was to evaluate the somatic growth, liver histology and changes in the GH/IGF-I axis after 4 weeks of food deprivation in C. dimerus. Four-week fasted fish showed reductions in specific growth rates in body weight (p < 0.001) and standard length (p < 0.001). Additionally, the hepatosomatic index (p < 0.001) and hepatocyte area (p < 0.001) decreased in fasted fish, while no changes in glucose levels were detected in plasma. The starvation protocol failed to induce changes in GH mRNA levels in the pituitary and IGF-I mRNA levels in liver. In contrast, IGF-I mRNA levels in muscle decreased in fasted fish (p = 0.002). On the other hand, GHR2 (detected with primer sets designed over the extracellular and intracellular region) was upregulated by starvation both in liver and muscle (p < 0.05), while GHR1 remained unchanged. These results show that a fasting period reduced somatic growth both in length and body weight concomitantly with alterations on liver and muscle GHR2 and muscle IGF-I mRNA expression.

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Response of the somatotropic axis to alterations in feed intake of channel catfish (Ictalurus punctatus)

Cited by 16 publications

References 58 publications

Effects of dietary arginine on endocrine growth factors of channel catfish, Ictalurus punctatus

Effects of dietary arginine on endocrine growth factors of channel catfish, Ictalurus punctatus

Modification of Carp (Osphronemus Gouramy) Growth with Insulin-Like Growth Factor-I Recombinant Mouse in Vivo

GH, IGF-I and GH receptors mRNA expression in response to growth impairment following a food deprivation period in individually housed cichlid fish Cichlasoma dimerus

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