Journal Article

PUBDB-2021-01132

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Investigation of the human pineal gland 3D organization by X-ray phase contrast tomography

Bukreeva, I. (Corresponding author)Extern* ; Junemann, O. (Corresponding author)Extern* ; Cedola, A. (Corresponding author)Extern* ; Palermo, F.Extern* ; Maugeri, L.Extern* ; Begani Provinciali, G.Extern* ; Pieroni, N.Extern* ; Sanna, A.Extern* ; Otlyga, D. A. ; Buzmakov, A.XFEL.EU* ; Krivonosov, Y.Extern* ; Zolotov, D.Extern* ; Chukalina, M.Extern* ; Ivanova, A.Extern* ; Saveliev, S.Extern* ; Asadchikov, V.Extern* ; Fratini, M.Extern*

2020
Elsevier San Diego, Calif.

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Please use a persistent id in citations: doi:10.1016/j.jsb.2020.107659  doi:10.3204/PUBDB-2021-01132

Abstract: Pineal gland (PG) is a part of the human brain epithalamus that plays an important role in sleep, circadian rhythm, immunity, and reproduction. The calcium deposits and lesions in PG interfere with normal function of the organ and can be associated with different health disorders including serious neurological diseases. At the moment, the detailed mechanisms of PG calcifications and PG lesions formation as well as their involvement in pathological processes are not fully understood. The deep and comprehensive study of the structure of the uncut human PG with histological details, poses a stiff challenge to most imaging techniques, due to low spatial resolution, low visibility or to exceedingly aggressive sample preparation. Here, we investigate the whole uncut and unstained human post-mortem PGs by X-ray phase contrast tomography (XPCT). XPCT is an advanced 3D imaging technique, that permits to study of both soft and calcified tissue of a sample at different scales: from the whole organ to cell structure. In our research we simultaneously resolved 3D structure of parenchyma, vascular network and calcifications. Moreover, we distinguished structural details of intact and degenerated PG tissue. We discriminated calcifications with different structure, pinealocytes nuclei and the glial cells processes. All results were validated by histology. Our research clear demonstrated that XPCT is a potential tool for the high resolution 3D imaging of PG morphological features. This technique opens a new perspective to investigate PG dysfunction and understand the mechanisms of onset and progression of diseases involving the pineal gland.

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Contributing Institute(s):

1. DOOR-User (DOOR ; HAS-User)

Research Program(s):

1. 6G3 - PETRA III (POF3-622) (POF3-622)

Experiment(s):

1. PETRA Beamline P05 (PETRA III)

Appears in the scientific report 2020

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Database coverage:
; ; ; BIOSIS Previews ; Biological Abstracts ; Clarivate Analytics Master Journal List ; Current Contents - Life Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection ; Zoological Record

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