Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Comment
. 2021 Mar 5;13(3):e13720.
doi: 10.15252/emmm.202013720. Epub 2021 Feb 8.

iNPH-the mystery resolving

Affiliations
Comment

iNPH-the mystery resolving

Ville Leinonen et al. EMBO Mol Med. .

Abstract

Idiopathic normal pressure hydrocephalus (iNPH) is characterized clinically by degradation of gait, cognition, and urinary continence. INPH is progressive (Andrén et al, 2014), still probably underdiagnosed (Williams et al, 2019) but potentially treatable by CSF diversion (Kazui et al, 2015). Familial aggregation is a strong indicator of genetic regulation in the disease process iNPH (Fig 1). Enlargement of brain ventricles is associated with failed cerebrospinal (CSF) homeostasis by so far mostly unknown mechanisms. A mutation of the cilia gene CFAP43 in iNPH family, confirmed by a knocked-out mouse model (Morimoto et al, 2019), allelic variation of NME8 (Huovinen et al, 2017), a segmental copy number loss in SFMBT1 in selected iNPH patients (Sato et al, 2016), and current results by Yang et al (2021) indicate that cilia dysfunction is one of the key mechanisms behind iNPH.

PubMed Disclaimer

Figures

Figure 1
Figure 1
Hypothetical disease progress of iNPH

Comment on

  • Deletions in CWH43 cause idiopathic normal pressure hydrocephalus.
    Yang HW, Lee S, Yang D, Dai H, Zhang Y, Han L, Zhao S, Zhang S, Ma Y, Johnson MF, Rattray AK, Johnson TA, Wang G, Zheng S, Carroll RS, Park PJ, Johnson MD. Yang HW, et al. EMBO Mol Med. 2021 Mar 5;13(3):e13249. doi: 10.15252/emmm.202013249. Epub 2021 Jan 18. EMBO Mol Med. 2021. PMID: 33459505 Free PMC article.

References

    1. Andrén K, Wikkelsø C, Tisell M, Hellström P (2014) Natural course of idiopathic normal pressure hydrocephalus. J Neurol Neurosurg Psychiatry 85: 806–810 - PubMed
    1. Huovinen J, Helisalmi S, Paananen J, Laiterä T, Kojoukhova M, Sutela A, Vanninen R, Laitinen M, Rauramaa T, Koivisto AM et al (2017) Alzheimer's disease‐related polymorphisms in shunt‐responsive idiopathic normal pressure hydrocephalus. J Alzheimers Dis 60: 1077–1085 - PubMed
    1. Kazui H, Miyajima M, Mori E, Ishikawa M, SINPHONI‐2 Investigators (2015) Lumboperitoneal shunt surgery for idiopathic normal pressure hydrocephalus (SINPHONI‐2): an open‐label randomised trial. Lancet Neurol 14: 585–594 - PubMed
    1. Kimihira L, Iseki C, Takahashi Y, Sato H, Kato H, Kazui H, Kuriyama N, Nakajima M, Miyajima M, Endo K et al (2020) A multi‐center, prospective study on the progression rate of asymptomatic ventriculomegaly with features of idiopathic normal pressure hydrocephalus on magnetic resonance imaging to idiopathic normal pressure hydrocephalus. J Neurol Sci 419: 117166 - PubMed
    1. Morimoto Y, Yoshida S, Kinoshita A, Satoh C, Mishima H, Yamaguchi N, Matsuda K, Sakaguchi M, Tanaka T, Komohara Y et al (2019) Nonsense mutation in CFAP43 causes normal‐pressure hydrocephalus with ciliary abnormalities. Neurology 92: e2364–e2374 - PMC - PubMed