Liver and plasma lipids of spawning burbot

Mustonen, A-M; Nieminen, Petteri; Hyväurinen, H.

doi:10.1111/j.1095-8649.2002.tb02476.x

Cited by 12 publications

(3 citation statements)

References 13 publications

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“…The connection observed between the plasma leptin-immunoreactivity and thyroid hormone levels in the burbots has, however, been previously observed in vitro also in mice (Yoshida et al, 1997). Leptin-immunoreactive peptide could also be measured in burbot liver supporting the previous results of Mustonen et al (2002b) with similar average leptin-immunoreactivity concentrations (8-11 ng g -1 liver) to the values of this study. Previously leptin protein expression has been observed in the chicken (Gallus domesticus) liver, presumably due to its crucial role in avian lipogenesis (Taouis et al, 1998).…”

Section: Discussionsupporting

confidence: 84%

Fasting Reduces Plasma Leptin- and Ghrelin-Immunoreactive Peptide Concentrations of the Burbot (Lota lota) at 2°C But Not at 10°C

2003

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The effects of fasting at two water temperatures (2 and 10 degrees C) on plasma leptin- and ghrelin-immunoreactive peptide concentrations and energy metabolism were investigated in the burbot (Lota lota), a freshwater gadoid, which lives in cold waters and tolerates long periods of fasting. Burbot were assigned to fed and fasted groups at 2 and 10 degrees C. Leptin- and ghrelin-immunoreactive peptides were identified in burbot plasma. Fasting at 2 degrees C reduced the plasma leptin- and ghrelin-immunoreactive peptide concentrations and reduced the relative liver weights and the liver and muscle glycogen concentrations. The concentrations of the leptin- and ghrelin-immunoreactivities correlated positively with each other. At 10 degrees C there were decreased plasma thyroxine levels in both sexes, and slightly lower plasma testosterone concentrations in males. The results support previous studies in stating that immunoreactivities resembling mammalian leptin and ghrelin can be detected in burbot plasma and liver, but the specific functions of these peptides will have to be determined in future studies.

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Section: Discussionsupporting

confidence: 84%

Fasting Reduces Plasma Leptin- and Ghrelin-Immunoreactive Peptide Concentrations of the Burbot (Lota lota) at 2°C But Not at 10°C

2003

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“…The liver lipid classes were analyzed with thin layer chromatography (TLC-FID, Iatroscan new Mark V, Iatron Laboratories Inc., Tokyo, Japan [22]), and the tissue FA composition using gas chromatography mass spectrometry (GC-FID and GC-MS, 6890N network GC-system, Agilent Technologies Inc., Palo Alto, CA, USA). For a more detailed description of FA analyses, see Nieminen et al [14,23].…”

Section: Methodsmentioning

confidence: 99%

Rapid Development of Fasting‐Induced Hepatic Lipidosis in the American Mink (Neovison vison): Effects of Food Deprivation and Re‐Alimentation on Body Fat Depots, Tissue Fatty Acid Profiles, Hematology and Endocrinology

Rouvinen‐Watt

Mustonen

Conway

et al. 2009

Lipids

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Hepatic lipidosis is a common pathological finding in the American mink (Neovison vison) and can be caused by nutritional imbalance due to obesity or rapid body weight loss. The objectives of the present study were to investigate the timeline and characterize the development of hepatic lipidosis in mink in response to 0-7 days of food deprivation and liver recovery after 28 days of re-feeding. We report here the effects on hematological and endocrine variables, body fat mobilization, the development of hepatic lipidosis and the alterations in the liver lipid classes and tissue fatty acid (FA) sums. Food deprivation resulted in the rapid mobilization of body fat, most notably visceral, causing elevated hepatosomatic index and increased liver triacylglycerol content. The increased absolute amounts of liver total phospholipids and phosphatidylcholine suggested endoplasmic reticulum stress. The hepatic lipid infiltration and the altered liver lipid profiles were associated with a significantly reduced proportion of n-3 polyunsaturated FA (PUFA) in the livers and the decrease was more evident in the females. Likewise, re-feeding of the female mink resulted in a more pronounced recovery of the liver n-3 PUFA. The rapid decrease in the n-3/n-6 PUFA ratio in response to food deprivation could trigger an inflammatory response in the liver. This could be a key contributor to the pathophysiology of fatty liver disease in mink influencing disease progression.

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“…Le glucagon augmente la concentration sanguine en glucose par la glycogénolyse au niveau hépatique. Comme c'est le cas chez de nombreuses espèces 22 , le foie du Merlu constitue un organe de stockage des lipides. En revanche, il semble que chez beaucoup de poissons, l'insuline soit plus impliquée dans le métabolisme protéique 7 .…”

Section: Aspect Histologique De L'hépatopancréas : L'étude Histologiqunclassified

Anatomie et Histologie de L’hépatopancréas Chez Le Mâle du Poisson, Chloroscombrus chrysurus de Linnaeus, 1766 (Carangidae) en Côte D’ivoire

2017

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Liver and plasma lipids of spawning burbot

Cited by 12 publications

References 13 publications

Fasting Reduces Plasma Leptin- and Ghrelin-Immunoreactive Peptide Concentrations of the Burbot (Lota lota) at 2°C But Not at 10°C

Fasting Reduces Plasma Leptin- and Ghrelin-Immunoreactive Peptide Concentrations of the Burbot (Lota lota) at 2°C But Not at 10°C

Rapid Development of Fasting‐Induced Hepatic Lipidosis in the American Mink (Neovison vison): Effects of Food Deprivation and Re‐Alimentation on Body Fat Depots, Tissue Fatty Acid Profiles, Hematology and Endocrinology

Anatomie et Histologie de L’hépatopancréas Chez Le Mâle du Poisson, Chloroscombrus chrysurus de Linnaeus, 1766 (Carangidae) en Côte D’ivoire

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