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  • Jocken, Johan W E (author)

Adipose TriGlyceride Lipase (ATGL) and Hormone-Sensitive Lipase (HSL) protein expression is decreased in the obese insulin resistant state.

  • Article/chapterEnglish2007

Publisher, publication year, extent ...

  • The Endocrine Society,2007

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  • LIBRIS-ID:oai:lup.lub.lu.se:9428fd42-24d7-4963-be74-d8b7b3a89a95
  • https://lup.lub.lu.se/record/166621URI
  • https://doi.org/10.1210/jc.2006-1318DOI
  • http://kipublications.ki.se/Default.aspx?queryparsed=id:115537091URI

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  • Language:English
  • Summary in:English

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  • Subject category:art swepub-publicationtype
  • Subject category:ref swepub-contenttype

Notes

  • Obesity is associated with increased triacylglycerol (TAG) storage in adipose tissue and insulin resistance. The mobilization of stored TAG is mediated by hormone-sensitive lipase (HSL) and the recently discovered adipose triglyceride lipase (ATGL). The aim of the present study was to examine whether ATGL and HSL mRNA and protein expression are altered in insulin-resistant conditions. In addition, we investigated whether a possible impaired expression could be reversed by a period of weight reduction. METHODS: Adipose tissue biopsies were taken from obese subjects (n = 44) with a wide range of insulin resistance, before and just after a 10-wk hypocaloric diet. ATGL and HSL protein and mRNA expression was determined by Western blot and quantitative RT-PCR, respectively. RESULTS: Fasting insulin levels and the degree of insulin resistance (using the homeostasis model assessment index for insulin resistance) were negatively correlated with ATGL and HSL protein expression, independent of age, gender, fat cell size, and body composition. Both mRNA and protein levels of ATGL and HSL were reduced in insulin-resistant compared with insulin-sensitive subjects (P < 0.05). Weight reduction significantly decreased ATGL and HSL mRNA and protein expression. A positive correlation between the decrease in leptin and the decrease in ATGL protein level after weight reduction was observed. Finally, ATGL and HSL mRNA and protein levels seem to be highly correlated, indicating a tight coregulation and transcriptional control. CONCLUSIONS: In obese subjects, insulin resistance and hyperinsulinemia are strongly associated with ATGL and HSL mRNA and protein expression, independent of fat mass. Data on weight reduction indicated that also other factors (e.g. leptin) relate to ATGL and HSL protein expression.

Subject headings and genre

  • MEDICIN OCH HÄLSOVETENSKAP Klinisk medicin Endokrinologi och diabetes hsv//swe
  • MEDICAL AND HEALTH SCIENCES Clinical Medicine Endocrinology and Diabetes hsv//eng
  • independent of fat mass. Data on weight reduction indicated that also other factors (e.g. leptin) relate to ATGL and HSL protein expression.
  • we investigated whether a possible impaired expression could be reversed by a period of weight reduction. METHODS: Adipose tissue biopsies were taken from obese subjects (n = 44) with a wide range of insulin resistance
  • Obesity is associated with increased triacylglycerol (TAG) storage in adipose tissue and insulin resistance. The mobilization of stored TAG is mediated by hormone-sensitive lipase (HSL) and the recently discovered adipose triglyceride lipase (ATGL). The aim of the present study was to examine whether ATGL and HSL mRNA and protein expression are altered in insulin-resistant conditions. In addition
  • before and just after a 10-wk hypocaloric diet. ATGL and HSL protein and mRNA expression was determined by Western blot and quantitative RT-PCR
  • independent of age
  • gender
  • fat cell size
  • respectively. RESULTS: Fasting insulin levels and the degree of insulin resistance (using the homeostasis model assessment index for insulin resistance) were negatively correlated with ATGL and HSL protein expression
  • ATGL and HSL mRNA and protein levels seem to be highly correlated
  • and body composition. Both mRNA and protein levels of ATGL and HSL were reduced in insulin-resistant compared with insulin-sensitive subjects (P < 0.05). Weight reduction significantly decreased ATGL and HSL mRNA and protein expression. A positive correlation between the decrease in leptin and the decrease in ATGL protein level after weight reduction was observed. Finally
  • indicating a tight coregulation and transcriptional control. CONCLUSIONS: In obese subjects
  • insulin resistance and hyperinsulinemia are strongly associated with ATGL and HSL mRNA and protein expression

Added entries (persons, corporate bodies, meetings, titles ...)

  • Langin, Dominique (author)
  • Smit, Egbert (author)
  • Saris, Wim Hm (author)
  • Valle, Carine (author)
  • Hul, Gabby B (author)
  • Holm, CeciliaLund University,Lunds universitet,Molekylär endokrinologi,Forskargrupper vid Lunds universitet,Molecular Endocrinology,Lund University Research Groups(Swepub:lu)medk-cho (author)
  • Arner, PeterKarolinska Institutet (author)
  • Blaak, Ellen E (author)
  • Molekylär endokrinologiForskargrupper vid Lunds universitet (creator_code:org_t)

Related titles

  • In:Journal of Clinical Endocrinology and Metabolism: The Endocrine Society92:6, s. 2292-22991945-71970021-972X

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Arner, Peter
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