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A six-to-ten weeks' follow-up study on the effects of olanzapine on abdominal fat and other metabolic parameters in patients with psychoses--an imaging-based study with controls.

AbstractOBJECTIVES:
To measure the changes in subcutaneous and intra-abdominal fat and other metabolic parameters in patients with psychotic disorders, who were newly started on olanzapine treatment and in drug-free controls. The correlation between changes in visceral fat and other metabolic parameters were also studied.
METHODS:
Using a longitudinal open-label design, the 2 studied groups included patients with psychoses (n = 23) [diagnosed as per the 10th edition of the International Classification of Diseases criteria] and drug-free controls (n = 11). Fasting sugar, lipid profile and glycosylated haemoglobin levels were collected at baseline and follow-up. Computed tomographic scans were used to determine changes in the various abdominal fat parameters.
RESULTS:
The patients were significantly younger than the controls, and the former had higher mean subcutaneous fat at baseline. There were statistically significant increases in the subcutaneous fat, intraabdominal fat, weight, waist circumference, hip circumference and body mass index in patients but not in controls. The mean dose of olanzapine (mg/day) correlated significantly with change of intraabdominal fat at follow-up. The change in intra-abdominal fat did not correlate significantly with any of the metabolic parameters studied.
CONCLUSIONS:
Olanzapine produced significant increase in weight and fat parameters. This increase correlated with the dose of olanzapine.
AuthorsA M Joseph, G Venkatasubramanian, P S Sharma
JournalEast Asian archives of psychiatry : official journal of the Hong Kong College of Psychiatrists = Dong Ya jing shen ke xue zhi : Xianggang jing shen ke yi xue yuan qi kan (East Asian Arch Psychiatry) Vol. 21 Issue 1 Pg. 10-6 (Mar 2011) ISSN: 2078-9947 [Print] China
PMID21837851 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
Chemical References
  • Antipsychotic Agents
  • Blood Glucose
  • Hemoglobin A, Glycosylated
  • Lipids
  • Benzodiazepines
  • olanzapine
Topics
  • Abdominal Fat (drug effects, metabolism, radiography)
  • Adolescent
  • Adult
  • Aged
  • Antipsychotic Agents (metabolism, pharmacology)
  • Benzodiazepines (metabolism, pharmacology)
  • Blood Glucose (drug effects, metabolism)
  • Body Mass Index
  • Body Weight (drug effects)
  • Dose-Response Relationship, Drug
  • Follow-Up Studies
  • Hemoglobin A, Glycosylated (drug effects, metabolism)
  • Humans
  • India
  • Intra-Abdominal Fat (drug effects, metabolism, radiography)
  • Lipids (blood)
  • Longitudinal Studies
  • Middle Aged
  • Psychotic Disorders (drug therapy, metabolism)
  • Tomography, X-Ray Computed
  • Waist Circumference (drug effects)
  • Waist-Hip Ratio
  • Young Adult

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