Elevated lipids are associated with reduced regional brain structure in youth with bipolar disorder
| Autor: | Benjamin I. Goldstein, Kody G. Kennedy, Anahit Grigorian, Lisa Fiksenbaum, Brian W. McCrindle, Bradley J. MacIntosh, Rachel H.B. Mitchell, Alvi H. Islam |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Adult
medicine.medical_specialty Bipolar Disorder Adolescent medicine.medical_treatment Blood lipids Hippocampus Gyrus Cinguli Young Adult 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine Internal medicine Humans Medicine Bipolar disorder Antipsychotic Triglycerides Anterior cingulate cortex 2. Zero hunger business.industry Cholesterol Brain medicine.disease Magnetic Resonance Imaging 030227 psychiatry Psychiatry and Mental health Endocrinology medicine.anatomical_structure chemistry lipids (amino acids peptides and proteins) business Body mass index 030217 neurology & neurosurgery Lipoprotein |
| Zdroj: | Acta Psychiatrica Scandinavica. 143:513-525 |
| ISSN: | 1600-0447 0001-690X |
| Popis: | Objective Abnormal blood lipid levels are common in bipolar disorder (BD) and correlate with mood symptoms and neurocognition. However, studies have not examined the lipid-brain structure association in BD or youth. Methods This study examined low-density lipoprotein (LDL-C), high-density lipoprotein (HDL-C), triglycerides, and total cholesterol (TC) levels in relation to brain structure utilizing T1-weighted images, among participants ages 13-20 with BD (n = 55) and healthy controls (HC; n = 47). General linear models investigated group differences in the association of lipids with anterior cingulate cortex (ACC), hippocampus, and inferior parietal lobe structure, controlling for age, sex, body mass index, and intracranial volume. For significant associations, post hoc within-group analyses were undertaken. Exploratory vertex-wise analyses further investigated group differences in the lipid-brain structure association. Results There were significant group differences in the association of LDL-C (β = -0.29 p = 0.001), and TC (β = -0.21 p = 0.016), with hippocampal volume, and triglycerides with ACC volume (β = -0.25 p = 0.01) and area (β = -0.26 p = 0.004). Elevated lipids were associated with smaller brain structure to a significantly greater extent in BD vs HC. Post hoc analyses revealed that elevated LDL-C (β = -0.27 p = 0.007) and reduced HDL-C (β = 0.24 p = 0.01) were associated with smaller hippocampal volume in the BD group. Exclusion of BD second-generation antipsychotic users did not alter these results. Vertex-wise analyses further showed that elevated lipids were associated with smaller brain structure to a significantly greater extent in BD vs HC, across the cortex. Conclusion Elevated lipids are associated with smaller brain structure in BD. Research evaluating lipid-brain structure associations prospectively and whether lipid optimization has salutary effects on brain structure is necessary. |
| Databáze: | OpenAIRE |
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