Local gyrification index in patients with major depressive disorder and its association with tryptophan hydroxylase-2 (TPH2) polymorphism

Kyu Man Han, Eunsoo Won, June Kang, Aram Kim, Ho-Kyoung Yoon, Hun Soo Chang, Kyu Ri Son, Min-Soo Lee, Woo Suk Tae, Byung-Joo Ham

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The tryptophan hydroxylase-2 (TPH2) gene is considered a promising genetic candidate regarding its association with a predisposition to major depressive disorder (MDD). Local gyrification reflects the early neural development of cortical connectivity, and is regarded as a potential neural endophenotype in psychiatric disorders. They aimed to investigate the alterations in the cortical gyrification of the prefrontal cortex and anterior cingulate cortex and their association with the TPH2 rs4570625 polymorphism in patients with MDD. One hundred and thirteen patients with MDD and eighty-six healthy controls underwent T1-weighted structural magnetic resonance imaging and genotyping for TPH2 rs4570625. The local gyrification index of 22 cortical regions in the prefrontal cortex and anterior cingulate cortex was analyzed using the FreeSurfer. The patients with MDD showed significant hypergyria in the right rostral anterior cingulate cortex (P=0.001), medial orbitofrontal cortex (P=0.003), and frontal pole (P=0.001). There was a significant genotype-by-diagnosis interaction for the local gyrification index in the right rostral anterior cingulate cortex (P=0.003). Their study revealed significant hypergyria of the anterior cingulate cortex and prefrontal cortex and an interactive effect between the diagnosis of MDD and the genotype in the anterior cingulate cortex. This might be associated with the dysfunction of neural circuits mediating emotion processing, which could contribute to pathophysiology of MDD.

Original languageEnglish
JournalHuman Brain Mapping
DOIs
Publication statusAccepted/In press - 2016

Fingerprint

Tryptophan Hydroxylase
Gyrus Cinguli
Major Depressive Disorder
Prefrontal Cortex
Genotype
Endophenotypes
Psychiatry
Emotions
Magnetic Resonance Imaging
Genes

Keywords

  • Anterior cingulate cortex
  • Local gyrification index
  • Major depressive disorder
  • Orbitofrontal cortex
  • Prefrontal cortex
  • TPH2 rs4570625

ASJC Scopus subject areas

  • Anatomy
  • Radiological and Ultrasound Technology
  • Radiology Nuclear Medicine and imaging
  • Neurology
  • Clinical Neurology

Cite this

Local gyrification index in patients with major depressive disorder and its association with tryptophan hydroxylase-2 (TPH2) polymorphism. / Han, Kyu Man; Won, Eunsoo; Kang, June; Kim, Aram; Yoon, Ho-Kyoung; Chang, Hun Soo; Son, Kyu Ri; Lee, Min-Soo; Tae, Woo Suk; Ham, Byung-Joo.

In: Human Brain Mapping, 2016.

Research output: Contribution to journalArticle

Han, Kyu Man ; Won, Eunsoo ; Kang, June ; Kim, Aram ; Yoon, Ho-Kyoung ; Chang, Hun Soo ; Son, Kyu Ri ; Lee, Min-Soo ; Tae, Woo Suk ; Ham, Byung-Joo. / Local gyrification index in patients with major depressive disorder and its association with tryptophan hydroxylase-2 (TPH2) polymorphism. In: Human Brain Mapping. 2016.
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