Evidence map›Paper›PMID 31145920›Full record

ArticleJournal of virological methods2019

A flow-through cell counting assay for point-of-care enumeration of CD4 T-cells.

Simon Bystryak, Rajiv P Bandwar, Rasa Santockyte

Open access · greenAbstract read
In one paragraph

Article in Journal of virological methods, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.0field-weighted citation impact, top 27% 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

5 citing papers in PubMed, 10 citations in OpenAlex.

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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

3 authors at 1 institution in 1 country.

Simon BystryakAllied Innovative Systems, 13 Watchung Avenue, Suite 102, Chatham, New Jersey 07928, USA. Electronic address: sbystryak@allisystems.com.
Rajiv P BandwarAllied Innovative Systems, 13 Watchung Avenue, Suite 102, Chatham, New Jersey 07928, USA.
Rasa SantockyteAllied Innovative Systems, 13 Watchung Avenue, Suite 102, Chatham, New Jersey 07928, USA.
Allied Innovative Systems (United States) · US

Funding

A Flow Through Cell Counting AssayR43HL097933 · NHLBI · ALLIED INNOVATIVE SYSTEMS, LLC · PI BYSTRYAK, SIMON · 2010 to 2010
$185k
NHLBI NIH HHS R43 HL097933
6 · The paper itself

Abstract

CD4 T-cell count is a priority for staging HIV disease and guiding clinical management as part of HIV care. Conventional CD4 T-cell enumeration methods based on flow cytometry are expensive, require well-trained personnel, and are challenging to use in rural, resource-scarce areas. A simple CD4 T-cell count test that can be used at point-of care, the Flow-Through cell Counting Assay (FTCA), is described in this article. The FTCA is based on the use of: 1) a special membrane that selectively retains white blood cells (WBCs); 2) a sample delivery system; and 3) optical signal detection. To show the feasibility of the FTCA, a proof-of-concept prototype of the FTCA cassette and digital camera or handheld reflectance meter were used for obtaining quantitative assay results within 30 min. The results show that the FTCA allows for quantitative enumeration of CD4 T-cells in the clinically relevant range of CD4 T-cell concentrations. The advantages of the FTCA technology, including simplicity, short analysis time, and portability, suggest that FTCA has great potential for use in clinical practice and wide applicability for other cell-based diagnostic tests.

Indexed as

CD4-Positive T-LymphocytesPoint-of-Care SystemsCD4 Lymphocyte CountFiltrationHIV InfectionsHumansCD4 countFlow-through assayHIVLeukoreduction filterPoint-of-care

Identifiers

PMID31145920
PMCPMC6626576
OpenAlexW2947256870

What OpenQuestion holds

Textmetadata
LicenceTDM
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.