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  • Améen, Caroline,1975Gothenburg University,Göteborgs universitet,Institutionen för fysiologi och farmakologi, Avdelningen för fysiologi,Wallenberglaboratoriet,Institute of Physiology and Pharmacology, Dept of Physiology,Wallenberg Laboratory (författare)

Effects of gender and GH secretory pattern on sterol regulatory element-binding protein-1c and its target genes in rat liver.

  • Artikel/kapitelEngelska2004

Förlag, utgivningsår, omfång ...

  • American Physiological Society,2004

Nummerbeteckningar

  • LIBRIS-ID:oai:gup.ub.gu.se/64451
  • https://gup.ub.gu.se/publication/64451URI
  • https://doi.org/10.1152/ajpendo.00059.2004DOI
  • http://kipublications.ki.se/Default.aspx?queryparsed=id:1958007URI

Kompletterande språkuppgifter

  • Språk:engelska

Ingår i deldatabas

Klassifikation

  • Ämneskategori:ref swepub-contenttype
  • Ämneskategori:art swepub-publicationtype

Anmärkningar

  • We investigated whether the sexually dimorphic secretory pattern of growth hormone (GH) in the rat regulates hepatic gene expression of sterol regulatory element-binding protein-1c (SREBP-1c) and its target genes. SREBP-1c, fatty acid synthase (FAS), and glycerol-3-phosphate acyltransferase (GPAT) mRNA were more abundant in female than in male livers, whereas acetyl-CoA carboxylase-1 (ACC1) and stearoyl-CoA desaturase-1 (SCD-1) were similarly expressed in both sexes. Hypophysectomized female rats were given GH as a continuous infusion or as two daily injections for 7 days to mimic the female- and male-specific GH secretory patterns, respectively. The female pattern of GH administration increased the expression of SREBP-1c, ACC1, FAS, SCD-1, and GPAT mRNA, whereas the male pattern of GH administration increased only SCD-1 mRNA. FAS and SCD-1 protein levels were regulated in a similar manner by GH. Incubation of primary rat hepatocytes with GH increased SCD-1 mRNA levels and decreased FAS and GPAT mRNA levels but had no effect on SREBP-1c mRNA. GH decreased hepatic liver X receptor-alpha (LXRalpha) mRNA levels both in vivo and in vitro. Feminization of the GH plasma pattern in male rats by administration of GH as a continuous infusion decreased insulin sensitivity and increased expression of FAS and GPAT mRNA but had no effect on SREBP-1c, ACC1, SCD-1, or LXRalpha mRNA. In conclusion, FAS and GPAT are specifically upregulated by the female secretory pattern of GH. This regulation is not a direct effect of GH on hepatocytes and does not involve changed expression of SREBP-1c or LXRalpha mRNA but is associated with decreased insulin sensitivity.

Ämnesord och genrebeteckningar

  • MEDICIN OCH HÄLSOVETENSKAP Medicinska och farmaceutiska grundvetenskaper Fysiologi hsv//swe
  • MEDICAL AND HEALTH SCIENCES Basic Medicine Physiology hsv//eng
  • Acetyl-CoA Carboxylase
  • genetics
  • Animals
  • Antigens
  • CD95
  • genetics
  • CCAAT-Enhancer-Binding Proteins
  • genetics
  • metabolism
  • Cells
  • Cultured
  • DNA-Binding Proteins
  • genetics
  • metabolism
  • Female
  • Glycerol-3-Phosphate O-Acyltransferase
  • genetics
  • Growth Hormone
  • blood
  • pharmacology
  • secretion
  • Hepatocytes
  • metabolism
  • Insulin Resistance
  • genetics
  • Lipids
  • biosynthesis
  • Liver
  • metabolism
  • Male
  • RNA
  • Messenger
  • metabolism
  • Rats
  • Rats
  • Sprague-Dawley
  • Receptors
  • Cytoplasmic and Nuclear
  • genetics
  • Sex Characteristics
  • Stearoyl-CoA Desaturase
  • genetics
  • Sterol Regulatory Element Binding Protein 1
  • Transcription Factors
  • genetics
  • metabolism

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Lindén, Daniel,1971Gothenburg University,Göteborgs universitet,Wallenberglaboratoriet,Wallenberg Laboratory (författare)
  • Larsson, Britt-Mari,1960Gothenburg University,Göteborgs universitet,Wallenberglaboratoriet,Wallenberg Laboratory(Swepub:gu)xlarbr (författare)
  • Mode, AgnetaKarolinska Institutet (författare)
  • Holmäng, Agneta,1959Gothenburg University,Göteborgs universitet,Wallenberglaboratoriet,Wallenberg Laboratory(Swepub:gu)xholag (författare)
  • Oscarsson, Jan,1960Gothenburg University,Göteborgs universitet,Institutionen för fysiologi och farmakologi, Avdelningen för fysiologi,Wallenberglaboratoriet,Institute of Physiology and Pharmacology, Dept of Physiology,Wallenberg Laboratory(Swepub:gu)xoscja (författare)
  • Göteborgs universitetInstitutionen för fysiologi och farmakologi, Avdelningen för fysiologi (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:American journal of physiology. Endocrinology and metabolism: American Physiological Society287:60193-18491522-1555

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