Evidence map›Paper›PMID 28771180›Full record

ArticleSensors (Basel, Switzerland)2017

Investigation of Exhaled Breath Samples from Patients with Alzheimer's Disease Using Gas Chromatography-Mass Spectrometry and an Exhaled Breath Sensor System.

Hui-Chong Lau, Joon-Boo Yu, Ho-Won Lee, Jeung-Soo Huh, Jeong-Ok Lim

Abstract read
In one paragraph

Article in Sensors (Basel, Switzerland), 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
–field-weighted citation impact
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

13 citing papers in PubMed.

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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

5 authors.

Hui-Chong LauBiomedical Research Institute, Department of Biomedical Science, Kyungpook National University, 50 Samduk, 2 Ga, Jung-Gu, Daegu 700-721, Korea. huichong.lau@gmail.com.
Joon-Boo YuDepartment of Materials Science and Metallurgical Engineering, Kyungpook National University, Sankyuk-dong, Puk-Gu, Daegu 41566, Korea. jyacht@naver.com.
Ho-Won LeeDepartment of Neurology, Kyungpook National University, 50 Samduk, 2 Ga, Jung-Gu, Daegu 700-721, Korea. neuromd@knu.ac.kr.
Jeung-Soo HuhDepartment of Materials Science and Metallurgical Engineering, Kyungpook National University, Sankyuk-dong, Puk-Gu, Daegu 41566, Korea. jshuh@knu.ac.kr.
Jeong-Ok LimBiomedical Research Institute, Department of Biomedical Science, Kyungpook National University, 50 Samduk, 2 Ga, Jung-Gu, Daegu 700-721, Korea. jolim@knu.ac.kr.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Exhaled breath is a body secretion, and the sampling process of this is simple and cost effective. It can be non-invasively collected for diagnostic procedures. Variations in the chemical composition of exhaled breath resulting from gaseous exchange in the extensive capillary network of the body are proposed to be associated with pathophysiological changes. In light of the foreseeable potential of exhaled breath as a diagnostic specimen, we used gas chromatography and mass spectrometry (GC-MS) to study the chemical compounds present in exhaled breath samples from patients with Alzheimer's disease (AD), Parkinson's disease (PD), and from healthy individuals as a control group. In addition, we also designed and developed a chemical-based exhaled breath sensor system to examine the distribution pattern in the patient and control groups. The results of our study showed that several chemical compounds, such as 1-phenantherol and ethyl 3-cyano-2,3-bis (2,5,-dimethyl-3-thienyl)-acrylate, had a higher percentage area in the AD group than in the PD and control groups. These results may indicate an association of these chemical components in exhaled breath with the progression of disease. In addition, in-house fabricated exhaled breath sensor systems, containing several types of gas sensors, showed significant differences in terms of the normalized response of the sensitivity characteristics between the patient and control groups. A subsequent clustering analysis was able to distinguish between the AD patients, PD patients, and healthy individuals using principal component analysis, Sammon's mapping, and a combination of both methods, in particular when using the exhaled breath sensor array system A consisting of eight sensors. With this in mind, the exhaled breath sensor system could provide alternative option for diagnosis and be applied as a useful, effective tool for the screening and diagnosis of AD in the near future.

Indexed as

ExhalationAlzheimer DiseaseBreath TestsGas Chromatography-Mass SpectrometryHumansParkinson DiseaseVolatile Organic CompoundsVolatile Organic Compoundsalzheimer’s diseaseexhaled breathexhaled breath sensor systemgas chromatography–mass spectrometrygas sensor

Identifiers

PMID28771180
PMCPMC5579482

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Registered trials

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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.