RT Journal Article T1 Aberrant Claustrum Microstructure in Humans after Premature Birth A1 Hedderich, Dennis M. A1 Menegaux, Aurore A1 Li, Hongwei A1 Schmitz-Koep, Benita A1 Staempfli, Philipp A1 Baeuml, Josef G. A1 Berndt, Maria T. A1 Baeuerlein, Felix J. B. A1 Grothe, Michel J. A1 Dyrba, Martin A1 Avram, Mihai A1 Boecker, Henning A1 Daamen, Marcel A1 Zimmer, Claus A1 Bartmann, Peter A1 Wolke, Dieter A1 Sorg, Christian K1 claustrum K1 cognitive difficulties K1 magnetic resonance imaging K1 mean diffusivity K1 premature birth K1 subplate neurons K1 Transient subplate zone K1 Diffusion tensor K1 Preterm birth K1 White-matter K1 Brain-injury K1 Gestational-age K1 Neurons K1 Cortex K1 Organization K1 Expression AB Several observations suggest an impact of prematurity on the claustrum. First, the claustrum's development appears to depend on transient subplate neurons of intra-uterine brain development, which are affected by prematurity. Second, the claustrum is the most densely connected region of the mammalian forebrain relative to its volume; due to its effect on pre-oligodendrocytes, prematurity impacts white matter connections and thereby the development of sources and targets of such connections, potentially including the claustrum. Third, due to its high connection degree, the claustrum contributes to general cognitive functioning (e.g., selective attention and task switching/maintaining); general cognitive functioning, however, is at risk in prematurity. Thus, we hypothesized altered claustrum structure after premature birth, with these alterations being associated with impaired general cognitive performance in premature born persons. Using T1-weighted and diffusion-weighted magnetic resonance imaging in 70 very preterm/very low-birth-weight (VP/VLBW) born adults and 87 term-born adults, we found specifically increased mean diffusivity in the claustrum of VP/VLBW adults, associated both with low birth weight and at-trend with reduced IQ. This result demonstrates altered claustrum microstructure after premature birth. Data suggest aberrant claustrum development, which is potentially related with aberrant subplate neuron and forebrain connection development of prematurity. PB Oxford univ press inc SN 1047-3211 YR 2021 FD 2021-06-25 LK https://hdl.handle.net/10668/27928 UL https://hdl.handle.net/10668/27928 LA en NO Hedderich DM, Menegaux A, Li H, Schmitz-Koep B, Stämpfli P, Bäuml JG, et al. Aberrant Claustrum Microstructure in Humans after Premature Birth. Cereb Cortex. 2021 Oct 22;31(12):5549-5559. DS RISalud RD Apr 5, 2025