Rodent models of senile normal-pressure hydrocephalus

Cerebrospinal fluid (CSF) and its drainage are crucial in clearing metabolic waste and maintaining the microenvironment of the central nervous system for proper functioning. Normal-pressure hydrocephalus (NPH) is a serious neurological disorder of the elderly with obstruction of CSF flow outside the...

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Main Authors: Li-Jin Chen, Sheng-Tzung Tsai, Guo-Fang Tseng
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2023-01-01
Series:Tzu-Chi Medical Journal
Subjects:
Online Access:http://www.tcmjmed.com/article.asp?issn=1016-3190;year=2023;volume=35;issue=1;spage=18;epage=23;aulast=Chen
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author Li-Jin Chen
Sheng-Tzung Tsai
Guo-Fang Tseng
author_facet Li-Jin Chen
Sheng-Tzung Tsai
Guo-Fang Tseng
author_sort Li-Jin Chen
collection DOAJ
description Cerebrospinal fluid (CSF) and its drainage are crucial in clearing metabolic waste and maintaining the microenvironment of the central nervous system for proper functioning. Normal-pressure hydrocephalus (NPH) is a serious neurological disorder of the elderly with obstruction of CSF flow outside the cerebral ventricles, causing ventriculomegaly. The stasis of CSF in NPH compromises brain functioning. Although treatable, often with shunt implantation for drainage, the outcome depends highly on early diagnosis, which, however, is challenging. The initial symptoms of NPH are hard to be aware of and the complete symptoms overlap with those of other neurological diseases. Ventriculomegaly is not specific to NPH as well. The lack of knowledge on the initial stages in its development and throughout its progression further deters early diagnosis. Thus, we are in dire need for an appropriate animal model for researches into a more thorough understanding of its development and pathophysiology so that we can enhance the diagnosis and therapeutic strategies to improve the prognosis of NPH following treatment. With this, we review the few currently available experimental rodent NPH models for these animals are smaller in sizes, easier in maintenance, and having a rapid life cycle. Among these, a parietal convexity subarachnoid space kaolin injection adult rat model appears promising as it shows a slow onset of ventriculomegaly in association with cognitive and motor disabilities resembling the elderly NPH in humans.
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spelling doaj.art-98b499b02a44447c8e94db5bfa1757632023-02-20T07:29:11ZengWolters Kluwer Medknow PublicationsTzu-Chi Medical Journal1016-31902223-89562023-01-01351182310.4103/tcmj.tcmj_120_22Rodent models of senile normal-pressure hydrocephalusLi-Jin ChenSheng-Tzung TsaiGuo-Fang TsengCerebrospinal fluid (CSF) and its drainage are crucial in clearing metabolic waste and maintaining the microenvironment of the central nervous system for proper functioning. Normal-pressure hydrocephalus (NPH) is a serious neurological disorder of the elderly with obstruction of CSF flow outside the cerebral ventricles, causing ventriculomegaly. The stasis of CSF in NPH compromises brain functioning. Although treatable, often with shunt implantation for drainage, the outcome depends highly on early diagnosis, which, however, is challenging. The initial symptoms of NPH are hard to be aware of and the complete symptoms overlap with those of other neurological diseases. Ventriculomegaly is not specific to NPH as well. The lack of knowledge on the initial stages in its development and throughout its progression further deters early diagnosis. Thus, we are in dire need for an appropriate animal model for researches into a more thorough understanding of its development and pathophysiology so that we can enhance the diagnosis and therapeutic strategies to improve the prognosis of NPH following treatment. With this, we review the few currently available experimental rodent NPH models for these animals are smaller in sizes, easier in maintenance, and having a rapid life cycle. Among these, a parietal convexity subarachnoid space kaolin injection adult rat model appears promising as it shows a slow onset of ventriculomegaly in association with cognitive and motor disabilities resembling the elderly NPH in humans.http://www.tcmjmed.com/article.asp?issn=1016-3190;year=2023;volume=35;issue=1;spage=18;epage=23;aulast=Chencommunicating hydrocephalusdementiakaolinnormal-pressure hydrocephalusrodent model
spellingShingle Li-Jin Chen
Sheng-Tzung Tsai
Guo-Fang Tseng
Rodent models of senile normal-pressure hydrocephalus
Tzu-Chi Medical Journal
communicating hydrocephalus
dementia
kaolin
normal-pressure hydrocephalus
rodent model
title Rodent models of senile normal-pressure hydrocephalus
title_full Rodent models of senile normal-pressure hydrocephalus
title_fullStr Rodent models of senile normal-pressure hydrocephalus
title_full_unstemmed Rodent models of senile normal-pressure hydrocephalus
title_short Rodent models of senile normal-pressure hydrocephalus
title_sort rodent models of senile normal pressure hydrocephalus
topic communicating hydrocephalus
dementia
kaolin
normal-pressure hydrocephalus
rodent model
url http://www.tcmjmed.com/article.asp?issn=1016-3190;year=2023;volume=35;issue=1;spage=18;epage=23;aulast=Chen
work_keys_str_mv AT lijinchen rodentmodelsofsenilenormalpressurehydrocephalus
AT shengtzungtsai rodentmodelsofsenilenormalpressurehydrocephalus
AT guofangtseng rodentmodelsofsenilenormalpressurehydrocephalus