Evidence map›Paper›PMID 11943712›Full record

ArticleThe American journal of pathology2002

Levels of nonphosphorylated and phosphorylated tau in cerebrospinal fluid of Alzheimer's disease patients : an ultrasensitive bienzyme-substrate-recycle enzyme-linked immunosorbent assay.

Yuan Yuan Hu, Shan Shu He, Xiaochuan Wang, Qiu Hong Duan, Inge Grundke-Iqbal, Khalid Iqbal, Jianzhi Wang

Open access · bronzeAbstract read
In one paragraph

Article in The American journal of pathology, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed
5.2field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

66 citing papers in PubMed, 183 citations in OpenAlex.

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6 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 2 countries.

Yuan Yuan HuPathophysiology Department, Institute forNeuroscience, Tongji Medical School, Huazhong University of Science andTechnology, Wuhan, People's Republic of China.
Shan Shu He
Xiaochuan Wang
Qiu Hong Duan
Inge Grundke-Iqbal
Khalid Iqbal
Jianzhi Wang
Huazhong University of Science and Technology · CNNew York State Office for People With Developmental Disabilities · US

Funding

BRAIN TISSUE RESOURCE OFR NEUROPSYCHIATRIC RESEARCHR01MH031862 · NIMH · MC LEAN HOSPITAL (BELMONT, MA) · PI BENES, FRANCINE M. · 1985 to 2002
$3.6M
NEURONAL CYTOSKELETAL ALTERATIONS IN ALZHEIMERS DISEASER01AG008076 · NIA · INSTITUTE FOR BASIC RES IN DEV DISABIL · PI IQBAL, KHALID · 1991 to 1999
–
FIC NIH HHS TW00703NIA NIH HHS AG08076NIMH NIH HHS MH/NS 31862
6 · The paper itself

Abstract

We have developed an ultrasensitive bienzyme-substrate-recycle enzyme-linked immunosorbent assay for the measurement of Alzheimer's disease (AD) abnormally hyperphosphorylated tau in cerebrospinal fluid (CSF). The assay, which recognizes attomolar amounts of tau, is approximately 400 and approximately 1300 times more sensitive than conventional enzyme-linked immunosorbent assay in determining the hyperphosphorylated tau and total tau, respectively. With this method, we measured both total tau and tau phosphorylated at Ser-396/Ser-404 in lumbar CSFs from AD and control patients. We found that the total tau was 215 +/- 77 pg/ml in cognitively normal control (n = 56), 234 +/- 92 pg/ml in non-AD neurological (n = 37), 304 +/- 126 pg/ml in vascular dementia (n = 46), and 486 +/- 168 pg/ml (n = 52) in AD patients, respectively. However, a remarkably elevated level in phosphorylated tau was only found in AD (187 +/- 84 pg/ml), as compared with normal controls (54 +/- 33 pg/ml), non-AD (63 +/- 34 pg/ml), and vascular dementia (72 +/- 33 pg/ml) groups. If we used the ratio of hyperphosphorylated tau to total tau of > or =0.33 as cutoff for AD diagnosis, we could confirm the diagnosis in 96% of the clinically diagnosed patients with a specificity of 95%, 86%, 100%, and 94% against nonneurological, non-AD neurological, vascular dementia, and all of the three control groups combined, respectively. It is suggested that the CSF level of tau phosphorylated at Ser-396/Ser-404 is a promising diagnostic marker of AD.

Indexed as

AgedAlzheimer DiseaseDementia, VascularEnzyme-Linked Immunosorbent AssayFemaleHumansMaleMiddle AgedPhosphorylationReference ValuesSensitivity and Specificitytau Proteinstau Proteins

Identifiers

PMID11943712
PMCPMC1867203
OpenAlexW47644403

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.