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Tumor necrosis factor-alpha alters glucose metabolism in suckling ratsBattelino, Tadej ...Tumor necrosis factor-alpha-(TNF-alpha), an important mediator of endotoxic shock, induces hypoglycemia and shock in adult animals. Indomethacin ameliorates TNF- alpha-induced hypoglycemia in the ... adult. However, effects of TNF-alpha on glucose metabolism in the newborn have not been well documented. The present study showed that in 10-day-old rats injected with TNF-alpha (4.5 x 10 power on 7 U/kg, intraoperationeally) the plasma glucose concentration increased from 4.1 +- 0.3 mmol/L to 6.9 +- 0.5 mmol/L (P < 0.5) at 2 hours andsubsequently decreased to 1.4 +- 0.5 mmol/L (P < 0.5) at 6 hours, although plasma lactate concentration increased from 1.1 +- 0.1 mmol/L to 5.5 +- 0.3 mmol/L (P < 0.5) at 6 hours. Plasma insulin concentration remained inchanged throughout the experiment. TNF-alpha increased GLUT 1 messenger RNA (mRNA) abundance in the brain. liver, muscle, and fatty tissue (P < 0.5). Glucose uptake increased in association with the increase of GLUT 1 mRNA abundance. TNF-alpha decreased mRNA abundance of GLUT 2 and phosphoenolpyruvate carboxykinase (PECK) in liver, suggesting decreased gluconeogenesis. Indomethacin (1.5 mg/kg 20 minutes before TNF-alpha, intraperitoneally) attenuated the hypoglycemia, the lactacidemia, and the increase of GLUT1 mRNA abundance and glucose uptake. Indomethacin attenuated the decrease of PEPCK mRNA abundance. We concluded that TNF-alpha induced hypoglycemia, increasing GLUT1 mRNA abundance and glucose uptake and decreasing PEPCK mRNA abundance in10-day-old rats. Indomethacin attenuated the TNF-alpha induced glucose dyshomeostasis.Vir: The Journal of laboratory and clinical medicine. - ISSN 0022-2143 (Letn. 133, št. 6, 1999, str. 583-589)Vrsta gradiva - članek, sestavni delLeto - 1999Jezik - angleškiCOBISS.SI-ID - 10828505
Avtor
Battelino, Tadej |
Goto, Masakatsu |
Kržišnik, Ciril, 1944-2024 |
Zeller, W... P.
Teme
Tumor necrosis factor |
Pharmacology |
Physiology |
Glucose |
Metabolism |
Animals, suckling |
Blood glucose |
Metabolism |
Gene expression regulation, developmental |
Indomethacin |
Pharmacology |
Insulin |
Blood |
Lactic acid |
Organ specificity |
Phosphoenolpyruvate carboxykinases |
Rats, sprague-dawley |
RNA, messenger
Vnos na polico
Trajna povezava
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Battelino, Tadej | 13023 |
Kržišnik, Ciril, 1944-2024 | 02278 |
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