Non-invasive MR imaging of human brain lymphatic networks with connections to cervical lymph nodes

Autor: Mehmet Sait Albayram, Garrett Smith, Fatih Tufan, Ibrahim Sacit Tuna, Mehmet Bostancıklıoğlu, Michael Zile, Onder Albayram
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Nature Communications, Vol 13, Iss 1, Pp 1-14 (2022)
Druh dokumentu: article
ISSN: 2041-1723
DOI: 10.1038/s41467-021-27887-0
Popis: Abstract Meningeal lymphatic vessels have been described in animal studies, but limited comparable data is available in human studies. Here we show dural lymphatic structures along the dural venous sinuses in dorsal regions and along cranial nerves in the ventral regions in the human brain. 3D T2-Fluid Attenuated Inversion Recovery magnetic resonance imaging relies on internal signals of protein rich lymphatic fluid rather than contrast media and is used in the present study to visualize the major human dural lymphatic structures. Moreover we detect direct connections between lymphatic fluid channels along the cranial nerves and vascular structures and the cervical lymph nodes. We also identify age-related cervical lymph node atrophy and thickening of lymphatics channels in both dorsal and ventral regions, findings which reflect the reduced lymphatic output of the aged brain.
Databáze: Directory of Open Access Journals