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Relationship between cerebrospinal fluid visfatin (PBEF/Nampt) levels and adiposity in humans

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Hallschmid, Manfred, Randeva, Harpal S., Tan, Bee K., Kern, Werner and Lehnert, Hendrik (2009) Relationship between cerebrospinal fluid visfatin (PBEF/Nampt) levels and adiposity in humans. Diabetes, Vol.58 (No.3). pp. 637-640. doi:10.2337/db08-1176

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Official URL: http://dx.doi.org/10.2337/db08-1176

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Abstract

OBJECTIVE-Observations of elevated circulating concentrations of visfatin (PBEF/Nampt) in obesity and diabetes suggest that this recently described adipokine is involved in the regulation of body weight and metabolism. We examined in humans whether visfatin is found in cerebrospinal fluid (CSF) and, if so, how CSF,visfatin concentrations relate to adiposity and metabolic parameters.

RESEARCH DESIGN AND METHODS-We measured visfatin concentrations in the plasma and CSF of 38 subjects (18 men and 20 women; age 19-80 years) with a wide range of body weight (BMI 16.24-38.10 kg/m(2)). In addition, anthropometric parameters and endocrine markets were assessed. Bivariate correlation coefficients were determined and stepwise multiple regression analyses were performed to detect associations of CSF and plasma visfatin levels with relevant parameters.

RESULTS-Plasma visfatin levels increased with rising BMI (P < 0.0001) and body fat mass (P < 0.0001). In contrast, CSF visfatin levels decreased with increasing plasma visfatin concentrations (P < 0.03), BMI (P < 0.001), body fat mass (P < 0.0001), and insulin resistance (P < 0.05). Body fat was the only factor independently associated with CSF visfatin, explaining 58% of the variation of CSF visfatin levels (P < 0.0001). Neither plasma (P > 0.13) nor CSF (P > 0.61) visfatin concentrations differed between men and women.

CONCLUSIONS-Our data indicate that visfatin concentrations in human CSF decrease with rising body fat, supporting the assumption that visfatin transport across the blood-brain barrier is impaired in obesity and that central nervous visfatin insufficiency or resistance are linked to pathogenetic mechanisms of obesity. Diabetes 58:637-640, 2009

Item Type: Journal Article
Subjects: R Medicine > RC Internal medicine
Divisions: Faculty of Medicine > Warwick Medical School > Biomedical Sciences > Translational & Experimental Medicine > Metabolic and Vascular Health (- until July 2016)
Faculty of Medicine > Warwick Medical School
Journal or Publication Title: Diabetes
Publisher: American Diabetes Association
ISSN: 0012-1797
Official Date: March 2009
Dates:
DateEvent
March 2009Published
Volume: Vol.58
Number: No.3
Number of Pages: 4
Page Range: pp. 637-640
DOI: 10.2337/db08-1176
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Funder: Deutsche Forschungsgemeinschaft
Grant number: SFB-654/B3

Data sourced from Thomson Reuters' Web of Knowledge

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