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  • 1.
    Alvehus, Malin
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Simonyte, Kotryna
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Andersson, Therése
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Söderström, Ingegerd
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Burén, Jonas
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Rask, Eva
    Örebro Univ Hosp, Dept Med, Örebro, Sweden.
    Mattsson, Cecilia
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Olsson, Tommy
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Adipose tissue IL-8 is increased in normal weight women after menopause and reduced after gastric bypass surgery in obese women2012Ingår i: Clinical Endocrinology, ISSN 0300-0664, E-ISSN 1365-2265, Vol. 77, nr 5, s. 684-690Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Objective:  The menopausal transition is characterized by increased body fat accumulation, including redistribution from peripheral to central fat depots. This distribution is associated with an increased risk of type 2 diabetes and cardiovascular disease which are linked to low-grade inflammation. We determined whether postmenopausal women have higher levels of inflammatory markers, compared to premenopausal women. We also wanted to determine if these markers are reduced by stable weight loss in obese women. Design and methods:  Anthropometric data, blood samples, and subcutaneous adipose tissue biopsies were collected from normal weight premenopausal and postmenopausal women and obese women before and 2 years after gastric bypass surgery. Serum protein levels and adipose tissue gene expression of inflammatory markers were investigated. Results:  IL-8 expression in adipose tissue and circulating levels were higher in postmenopausal versus premenopausal women. IL-8 expression was associated with waist circumference, independent of menopausal status. IL-6 expression and serum levels of monocyte chemoattractant protein (MCP)-1 were higher in postmenopausal versus premenopausal women. Two years after gastric bypass surgery, adipose expression of IL-8, tumor necrosis factor-α, and MCP-1 decreased significantly. Serum insulin levels were associated with inflammation-related gene expression before gastric bypass surgery, but these associations disappeared after surgery. Conclusion:  Postmenopausal women have an increased inflammatory response in the subcutaneous fat and circulation. Inflammatory markers in adipose tissue decreased significantly after surgery-induced weight loss. This effect may be beneficial for metabolic control and reduced cardiovascular risk after weight loss. © 2011 Blackwell Publishing Ltd.

  • 2.
    Andersson, Therese
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    McInnes, Kerry
    Endocrine Unit, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK.
    Simonyte, Kotryna
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Söderström, Ingegerd
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Rask, Eva
    Institutionen för medicin, Örebro universitetssjukhus, Örebro, Sverige.
    Mattsson, Cecilia
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Seckl, Jonathan R
    Endocrinology Unit, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK.
    Olsson, Tommy
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Estrogen upregulates 11β-hydroxysteroid dehydrogenase type 1 in adipose tissues via estrogen receptor βManuskript (preprint) (Övrigt vetenskapligt)
  • 3.
    Andersson, Therése
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Simonyte, Kotryna
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Andrew, Ruth
    Strand, Magnus
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Burén, Jonas
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Walker, Brian R
    Mattsson, Cecilia
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Olsson, Tommy
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Tissue-specific increases in 11beta-hydroxysteroid dehydrogenase type 1 in normal weight postmenopausal women2009Ingår i: PloS one, ISSN 1932-6203, Vol. 4, nr 12, s. e8475-Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    With age and menopause there is a shift in adipose distribution from gluteo-femoral to abdominal depots in women. Associated with this redistribution of fat are increased risks of type 2 diabetes and cardiovascular disease. Glucocorticoids influence body composition, and 11beta-hydroxysteroid dehydrogenase type 1 (11betaHSD1) which converts inert cortisone to active cortisol is a putative key mediator of metabolic complications in obesity. Increased 11betaHSD1 in adipose tissue may contribute to postmenopausal central obesity. We hypothesized that tissue-specific 11betaHSD1 gene expression and activity are up-regulated in the older, postmenopausal women compared to young, premenopausal women. Twenty-three pre- and 23 postmenopausal, healthy, normal weight women were recruited. The participants underwent a urine collection, a subcutaneous adipose tissue biopsy and the hepatic 11betaHSD1 activity was estimated by the serum cortisol response after an oral dose of cortisone. Urinary (5alpha-tetrahydrocortisol+5beta-tetrahydrocortisol)/tetrahydrocortisone ratios were higher in postmenopausal women versus premenopausal women in luteal phase (P<0.05), indicating an increased whole-body 11betaHSD1 activity. Postmenopausal women had higher 11betaHSD1 gene expression in subcutaneous fat (P<0.05). Hepatic first pass conversion of oral cortisone to cortisol was also increased in postmenopausal women versus premenopausal women in follicular phase of the menstrual cycle (P<0.01, at 30 min post cortisone ingestion), suggesting higher hepatic 11betaHSD1 activity. In conclusion, our results indicate that postmenopausal normal weight women have increased 11betaHSD1 activity in adipose tissue and liver. This may contribute to metabolic dysfunctions with menopause and ageing in women.

  • 4.
    Buren, Jonas
    et al.
    Umeå universitet, Medicinsk fakultet, Folkhälsa och klinisk medicin, Medicin.
    Bergström, Sven-Anders
    Umeå universitet, Medicinsk fakultet, Folkhälsa och klinisk medicin, Medicin.
    Loh, Edmund
    Umeå universitet, Medicinsk fakultet, Molekylärbiologi (Medicinska fakulteten).
    Söderström, Ingegerd
    Umeå universitet, Medicinsk fakultet, Folkhälsa och klinisk medicin, Medicin.
    Olsson, Tommy
    Umeå universitet, Medicinsk fakultet, Folkhälsa och klinisk medicin, Medicin.
    Mattsson, Cecilia
    Umeå universitet, Medicinsk fakultet, Folkhälsa och klinisk medicin, Medicin.
    Hippocampal 11beta-hydroxysteroid dehydrogenase type 1 messenger ribonucleic acid expression has a diurnal variability that is lost in the obese Zucker rat.2007Ingår i: Endocrinology, ISSN 0013-7227, Vol. 148, nr 6, s. 2716-22Artikel i tidskrift (Refereegranskat)
  • 5.
    Claesson, Maria
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Birgander, Lisbeth Slunga
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Yrkes- och miljömedicin.
    Jansson, Jan-Håkan
    Lindahl, B
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Yrkes- och miljömedicin.
    Burell, G
    Asplund, Kjell
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Mattsson, Cecilia
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Cognitive-behavioural stress management does not improve biological cardiovascular risk indicators in women with ischaemic heart disease: a randomized-controlled trial.2006Ingår i: Journal of Internal Medicine, ISSN 0954-6820, E-ISSN 1365-2796, Vol. 260, nr 4, s. 320-331Artikel i tidskrift (Refereegranskat)
  • 6.
    Dahlqvist, Per
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Mattsson, Cecilia
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Olivecrona, Zandra
    Koskinen, Lars-Owe D
    Pituitary Function after Severe Traumatic Brain Injury (TBI) in Northern Sweden2011Ingår i: Contents:June 2011, Volume 32, Issue 03_MeetingAbstracts / [ed] E Chester Ridway, 2011, s. 396-Konferensbidrag (Övrigt vetenskapligt)
  • 7. Homer, Natalie Z M
    et al.
    Reynolds, Rebecca M
    Mattsson, Cecilia
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Bailey, Matthew A
    Walker, Brian R
    Andrew, Ruth
    Quantitative analysis of RU38486 (mifepristone) by HPLC triple quadrupole mass spectrometry2009Ingår i: Journal of chromatography. B, ISSN 1570-0232, E-ISSN 1873-376X, Vol. 877, nr 5-6, s. 497-501Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    A sensitive liquid chromatography-mass spectrometric method was validated for the quantification of RU38486 (mifepristone) in human and murine plasma. The analyte and internal standard (alfaxolone) were extracted by liquid-liquid extraction with diethyl ether, resolved on a C18 column using gradient elution with methanol and ammonium acetate and detected after positive electrospray ionization (m/z 430-->372; m/z 333-->297, respectively). Quantification was linear over the range 0.5-500ng (r(2)>0.997), precise and accurate (intra-assay RSD</=7.2%, RME</=8.2%; inter-assay RSD</=15.7% RME</=10.2%). The limit of quantification (LOQ) was 50pg injected on column, permitting reproducible analysis of RU38486 in small volumes of plasma.

  • 8.
    Mattsson, Cecilia
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Berggren, Diana
    Umeå universitet, Medicinska fakulteten, Institutionen för klinisk vetenskap, Öron- näs- och halssjukdomar.
    Hellström, Sten
    Umeå universitet, Medicinska fakulteten, Institutionen för klinisk vetenskap, Öron- näs- och halssjukdomar.
    Myringotomized tympanic membranes cultured in vitro do not develop myringosclerosis2002Ingår i: Acta Oto-Laryngologica, ISSN 0001-6489, E-ISSN 1651-2251, Vol. 122, nr 2, s. 168-172Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The aim of this study was to evaluate the development of myringosclerosis in in vitro-cultured tympanic membranes. Sprague-Dawley rats were myringotomized bilaterally and the tympanic membranes were excised after sacrifice. The explants were placed in inserts in wells filled with a nutrient medium. Every second day the tympanic membranes were photodocumented and after 9 days the explants were prepared for histology. On the 4th day the explants had attached to the bottom of the inserts and the specimens had thickened. From the perforation borders and the dissection edges a thin outgrowth was extending across the surface. By Day 9 the perforation had clearly diminished in size when examined in a stereomicroscope. In a light microscope the keratin layer was seen to protrude towards the centre of the perforation and, at the borders, epithelial cells were bridging the gap. Neither the pars tensa nor the pars flaccida showed any sclerotic lesions. The pars flaccida had thickened and the basal cells of the outer keratinized epithelium had invaded the connective tissue. Inflammatory cells were sparse in both the pars tensa and pars flaccida. The in vitro-cultured myringotomized tympanic membrane therefore shows a similar healing pattern to that in vivo. However, inflammatory reactions are sparse and there is no development of myringosclerosis.

  • 9.
    Mattsson, Cecilia
    et al.
    Norrlands universitetssjukhus, Umeå.
    Ohlsson, Helena
    Norrlands universitetssjukhus, Umeå.
    Maleki, Sarah
    Norrlands universitetssjukhus, Umeå.
    Birgander, Richard
    Norrlands universitetssjukhus, Umeå.
    Koskinen, Lars-Owe D.
    Umeå universitet, Medicinska fakulteten, Institutionen för farmakologi och klinisk neurovetenskap, Neurokirurgi. Norrlands universitetssjukhus, Umeå.
    Utvärdering av hypofyskirurgi: SIPAP-klassifikationen ger god vägledning vid tumörreduktion2006Ingår i: Lakartidningen, ISSN 0023-7205, Vol. 103, nr 13, s. 1016-1021Artikel i tidskrift (Refereegranskat)
  • 10.
    Mattsson, Cecilia
    et al.
    Umeå universitet, Medicinsk fakultet, Folkhälsa och klinisk medicin, Medicin.
    Olsson, Tommy
    Umeå universitet, Medicinsk fakultet, Folkhälsa och klinisk medicin.
    Estrogens and glucocorticoid hormones in adipose tissue metabolism2007Ingår i: Current Medicinal Chemistry, ISSN 0929-8673, Vol. 27, s. 2918-24Artikel i tidskrift (Refereegranskat)
  • 11.
    Mattsson, Cecilia
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Rask, Eva
    Carlström, Kjell
    Andersson, Jonas
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Eliasson, Mats
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Ahrén, Bo
    Söderberg, Stefan
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Kardiologi.
    Olsson, Tommy
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Gender-specific links between hepatic 11beta reduction of cortisone and adipokines2007Ingår i: Obesity, ISSN 1930-7381, E-ISSN 1930-739X, Vol. 15, nr 4, s. 887-894Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    OBJECTIVE: Reduction of cortisone to cortisol is mediated by 11beta-hydroxysteroid dehydrogenase type 1 (11betaHSD1), a putative key enzyme in obesity-related complications. Experimental studies suggest that adipokines, notably leptin and tumor necrosis factor-alpha (TNF-alpha), are of importance for 11betaHSD1 activity. We hypothesized that the regulation of hepatic preceptor glucocorticoid metabolism is gender-specific and associated with circulating levels of leptin and TNF-alpha receptors and/or sex hormones. RESEARCH METHODS AND PROCEDURES: A total of 34 males and 38 women (14 premenopausal and 22 postmenopausal) underwent physical examination and fasting blood sampling. Insulin sensitivity was tested by euglycemic hyperinsulinemic clamps, and hepatic 11betaHSD1 enzyme activity was estimated by the conversion of orally-ingested cortisone to cortisol. RESULTS: Hepatic 11betaHSD1 activity was negatively associated with leptin and soluble TNF (sTNF) r1 and sTNFr2 in males. These correlations remained significant after adjustment for age and insulin sensitivity, and for sTNF-alpha receptors also after adjustment of BMI and waist circumference. In contrast, 11beta reduction of cortisone was positively associated to leptin in females after adjustment for BMI and waist circumference. DISCUSSION: Hepatic 11beta reduction shows different links to circulating adipocyte-derived hormones in males and females. This emphasizes the need for further studies on tissue-specific regulation of 11betaHSD1 in both genders.

  • 12.
    Mattsson, Cecilia
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Reynolds, Rebecca M
    Simonyte, Kotryna
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Olsson, Tommy
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Walker, Brian R
    Combined receptor antagonist stimulation of the HPA axis test identifies impaired negative feedback sensitivity to cortisol in obese men2009Ingår i: Journal of Clinical Endocrinology and Metabolism, ISSN 0021-972X, E-ISSN 1945-7197, Vol. 94, nr 4, s. 1347-1352Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Context: Hypothalamic-pituitary-adrenal (HPA) axis dysregulation may underlie disorders including obesity, depression, cognitive decline and the metabolic syndrome. Conventional tests of HPA axis negative feedback rely on glucocorticoid receptor (GR) agonists such as dexamethasone, but do not test feedback by endogenous cortisol, potentially mediated by both GR and mineralocorticoid receptors (MR).

    Objective: To use a combination of GR (RU38486, mifepristone) and MR (spironolactone) antagonists to explore the poorly understood activation of the HPA axis that occurs in obesity.

    Design: Double blind, placebo-controlled randomized cross-over study.

    Setting: Clinical research facility.

    Participants: 15 lean (BMI 22.0+/-1.6 kg/m(2)) and 16 overweight/obese (BMI 30.1+/-3.5 kg/m(2)) men.

    Intervention: Subjects attended on four occasions for blood and saliva sampling every 30 minutes between 1800h and 2200h. At 1100h and 1600h before visits subjects took either 200mg spironolactone, 400mg RU38486, 200mg spironolactone + 400mg RU38486, or placebo orally.

    Main outcome measures: serum cortisol levels following drug or placebo.

    Results: Cortisol levels did not differ between lean and obese following placebo. Spironolactone and RU38486 alone had modest effects, increasing cortisol by <50% in both groups. However, combined spironolactone plus RU38486 elevated cortisol concentrations substantially, moreso in lean than obese men (2.9(0.3) vs 2.2(0.3) fold elevation, p=0.002).

    Conclusions: Combined receptor antagonist stimulation of the HPA axis reveals redundancy of MR and GR in negative feedback in humans. Obese men have impaired responses to combined receptor antagonist stimulation, suggesting impaired negative feedback by endogenous cortisol. Such an approach may be useful to dissect abnormal HPA axis control in neuropsychiatric and other disorders.

  • 13.
    Mattsson, Cecilia
    et al.
    Umeå universitet, Medicinsk fakultet, Folkhälsa och klinisk medicin, Medicin.
    Stanhope, C Robert
    Sam, Susan
    Young, William F
    Image in endocrinology: testosterone-secreting ovarian tumor localized with (fluorine-18)-2-deoxyglucose positron emission tomography.2006Ingår i: J Clin Endocrinol Metab, ISSN 0021-972X, Vol. 91, nr 3, s. 738-9Artikel i tidskrift (Refereegranskat)
  • 14.
    Mattsson, Cecilia
    et al.
    Umeå universitet, Medicinsk fakultet, Folkhälsa och klinisk medicin, Medicin.
    Young, William F
    Primary aldosteronism: diagnostic and treatment strategies.2006Ingår i: Nat Clin Pract Nephrol, ISSN 1745-8323, Vol. 2, nr 4, s. 198-208; quiz, 1 p following 230Artikel i tidskrift (Refereegranskat)
  • 15. McInnes, Kerry J.
    et al.
    Andersson, Therese C.
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Simonyte, Kotryna
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Söderström, Ingegerd
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Mattsson, Cecilia
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Seckl, Jonathan R.
    Olsson, Tommy
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Association of 11 beta-hydroxysteroid dehydrogenase type I expression and activity with estrogen receptor beta in adipose tissue from postmenopausal women2012Ingår i: Menopause: The Journal of the North American Menopause, ISSN 1072-3714, E-ISSN 1530-0374, Vol. 19, nr 12, s. 1347-1352Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Objective: 11 beta-Hydroxysteroid dehydrogenase type I (11 beta HSD1) regenerates active cortisol from inert cortisone in adipose tissue. Elevated adipose tissue 11 beta HSD1 activity is observed in obese humans and rodents, where it is linked to obesity and its metabolic consequences. Menopause is also associated with increased abdominal fat accumulation, suggesting that estrogen is also important in adipose tissue metabolism. The purpose of this current study was to establish whether estrogen signaling through estrogen receptor alpha (ER-alpha) and estrogen receptor beta (ER-beta) could influence 11 beta HSD1 in premenopausal and postmenopausal adipose tissues. Methods: Nineteen premenopausal (aged 26 +/- 5 y; body mass index, 23.6 +/- 1.6 kg/m(2)) and 23 postmenopausal (aged 63 +/- 4 y; body mass index, 23.4 +/- 1.9 kg/m(2)) healthy women were studied. Subcutaneous adipose tissue biopsies and fasting venous blood samples were taken. Body composition was measured by bioelectrical impedance analysis. Human Simpson-Golabi-Behmel syndrome adipocyte cells were treated with ER-alpha- and ER-beta-specific agonists for 24 hours. Basic anthropometric data, serum 17 beta-estradiol and progesterone concentrations, ER-alpha and ER-beta messenger RNA (mRNA) levels, and 11 beta HSD1 mRNA, protein, and activity levels were assessed. Results: ER-beta and 11 beta HSD1, but not ER-alpha, mRNAs were significantly increased in adipose tissue from postmenopausal women compared with premenopausal women. ER-beta had a significant positive correlation with the mRNA level of 11 beta HSD1 in adipose tissue from premenopausal and postmenopausal women. This association between ER-beta and 11 beta HSD1 was greatest in adipose tissue from postmenopausal women. In human Simpson-Golabi-Behmel syndrome adipocytes, diarylpropiolnitrile, a selective ER-beta agonist, increased 11 beta HSD1 mRNA, protein, and activity levels. Conclusions: We conclude that, in adipose tissue, ER-beta-mediated estrogen signaling can up-regulate 11 beta HSD1 and that this may be of particular importance in postmenopausal women.

  • 16.
    Simonyte, Kotryna
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Olsson, Tommy
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Näslund, Ingmar
    Angelhed, Jan-Erik
    Lönn, Lars
    Mattsson, Cecilia
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Rask, Eva
    Weight loss after gastric bypass surgery in women is followed by a metabolically favorable decrease in 11beta-hydroxysteroid dehydrogenase 1 expression in subcutaneous adipose tissue2010Ingår i: Journal of Clinical Endocrinology and Metabolism, ISSN 0021-972X, E-ISSN 1945-7197, Vol. 95, nr 7, s. 3527-3531Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Weight loss after gastric bypass surgery was followed by metabolically favorable changes in insulin sensitivity, circulating leptin and adiponectin, and peripheral glucocorticoid metabolism. A significant reduction in 11beta-HSD1 expression was observed in sc adipose tissue after weight loss. This suggests that up-regulation of 11beta-HSD1 is a consequence, rather than a cause, of obesity.

  • 17.
    Simonyte, Kotryna
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Rask, Eva
    Näslund, Ingmar
    Angelhed, Jan-Erik
    Lönn, Lars
    Olsson, Tommy
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Mattsson, Cecilia
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Obesity is accompanied by disturbances in peripheral glucocorticoid metabolism and changes in FA recycling2009Ingår i: Obesity (Silver Spring, Md.), ISSN 1930-7381, Vol. 17, nr 11, s. 1982-1987Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The glucocorticoid activating enzyme 11beta-hydroxysteroid dehydrogenase type 1 (11betaHSD1) is of major interest in obesity-related morbidity. Alterations in tissue-specific cortisol levels may influence lipogenetic and gluco/glyceroneogenetic pathways in fat and liver. We analyzed the expression and activity of 11betaHSD1 as well as the expression of phosphoenolpyruvate carboxykinase (PEPCK), sterol regulatory element binding protein (SREBP), and fatty acid synthase (FAS) in adipose and liver and investigated putative associations between 11betaHSD1 and energy metabolism genes. A total of 33 obese women (mean BMI 44.6) undergoing gastric bypass surgery were enrolled. Subcutaneous adipose tissue (SAT), omental fat (omental adipose tissue (OmAT)), and liver biopsies were collected during the surgery. 11betaHSD1 gene expression was higher in SAT vs. OmAT (P = 0.013), whereas the activity was higher in OmAT (P = 0.009). The SAT 11betaHSD1 correlated with waist circumference (P = 0.045) and was an independent predictor for the OmAT area in a linear regression model. Energy metabolism genes had AT depot-specific expression; higher leptin and SREBP in SAT than OmAT, but higher PEPCK in OmAT than SAT. The expression of 11betaHSD1 correlated with PEPCK in both AT depots (P = 0.05 for SAT and P = 0.0001 for OmAT). Hepatic 11betaHSD1 activity correlated negatively with abdominal adipose area (P = 0.002) and expression positively with PEPCK (P = 0.003). In human obesity, glucocorticoid regeneration in the SAT is associated with central fat accumulation indicating that the importance of this specific fat depot is underestimated. Central fat accumulation is negatively associated with hepatic 11betaHSD1 activity. A disturbance in peripheral glucocorticoid metabolism is associated with changes in genes involved in fatty acid (FA) recycling in adipose tissue (AT).

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