Development of cerebrospinal fluid absorption sites in the pig and rat: Connections between the subarachnoid space and lymphatic vessels in the olfactory turbinates
Anatomy and Embryology, ISSN: 0340-2061, Vol: 211, Issue: 4, Page: 335-344
2006
- 59Citations
- 58Captures
- 1Mentions
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Metrics Details
- Citations59
- Citation Indexes59
- 59
- CrossRef36
- Captures58
- Readers58
- 58
- Mentions1
- News Mentions1
- News1
Most Recent News
Nasopharyngeal lymphatic plexus is a hub for cerebrospinal fluid drainage
Nature, Published online: 10 January 2024; doi:10.1038/s41586-023-06899-4 The nasopharyngeal lymphatic plexus is a major hub for cerebrospinal fluid outflow to deep cervical lymph nodes.
Article Description
The textbook view that cerebrospinal fluid (CSF) absorption occurs mainly through the arachnoid granulations and villi is being challenged by quantitative and qualitative studies that support a major role for the lymphatic circulation in CSF transport. There are many potential sites at which lymphatics may gain access to CSF but the primary pathway involves the movement of CSF through the cribriform plate foramina in association with the olfactory nerves. Lymphatics encircle the nerve trunks on the extracranial surface of the cribriform plate and absorb CSF. However, the time during development in which the CSF compartment and extracranial lymphatic vessels connect anatomically is unclear. In this report, CSF-lymphatic connections were investigated using the silastic material Microfil and a soluble Evan's blue-protein complex in two species; one in which significant CSF synthesis by the choroid plexus begins before birth (pigs) and one in which CSF secretion is markedly up regulated within the first weeks after birth (rats). We examined a total of 46 pig fetuses at embryonic (E) day E80-81, E92, E101, E110 (birth at 114 days). In rats, we investigated a total of 115 animals at E21 (birth at 21 days), postnatal (P) day P1-P9, P12, P13, P15, P22, and adults. In pigs, CSF-lymphatic connections were observed in the prenatal period as early as E92. Before this time (E80-81 fetuses) CSF-lymphatic connections did not appear to exist. In rats, these associations were not obvious until about a week after birth. These data suggest that the ability of extracranial lymphatic vessels to absorb CSF develops around the time that significant volumes of CSF are being produced by the choroid plexus and further support an important role for lymphatic vessels in CSF transport. © Springer-Verlag 2006.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=33748862808&origin=inward; http://dx.doi.org/10.1007/s00429-006-0085-1; http://www.ncbi.nlm.nih.gov/pubmed/16528517; http://link.springer.com/10.1007/s00429-006-0085-1; http://www.springerlink.com/index/10.1007/s00429-006-0085-1; http://www.springerlink.com/index/pdf/10.1007/s00429-006-0085-1; https://dx.doi.org/10.1007/s00429-006-0085-1; https://link.springer.com/article/10.1007/s00429-006-0085-1
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