Results 11 to 20 of about 221,057 (260)

Validating Discriminative Signatures for Obstructive Sleep Apnea in Exhaled Breath

Cells, 2022
Rapid and reliable tools for the diagnosis and monitoring of obstructive sleep apnea (OSA) are currently lacking. Prior studies using a chemical analysis of exhaled breath have suggested the existence of an OSA-specific metabolic signature.
Bettina Streckenbach, Martin Osswald, Stefan Malesevic, Renato Zenobi, Malcolm Kohler   +4 more
doaj   +1 more source

Recent Advances in Sensing Materials Targeting Clinical Volatile Organic Compound (VOC) Biomarkers: A Review

Biosensors, 2023
In general, volatile organic compounds (VOCs) have a high vapor pressure at room temperature (RT). It has been reported that all humans generate unique VOC profiles in their exhaled breath which can be utilized as biomarkers to diagnose disease ...
Akhilesh Kumar Pathak, Kankan Swargiary, Nuntaporn Kongsawang, Pannathorn Jitpratak, Noppasin Ajchareeyasoontorn, Jade Udomkittivorakul, Charusluk Viphavakit   +6 more
doaj   +1 more source

pyAIR—A New Software Tool for Breathomics Applications—Searching for Markers in TD-GC-HRMS Analysis

Molecules, 2022
Volatile metabolites in exhaled air have promising potential as diagnostic biomarkers. However, the combination of low mass, similar chemical composition, and low concentrations introduces the challenge of sorting the data to identify markers of value ...
Lilach Yishai Aviram, Dana Marder, Hagit Prihed, Konstantin Tartakovsky, Daniel Shem-Tov, Regina Sinelnikov, Shai Dagan, Nitzan Tzanani   +7 more
doaj   +1 more source

Statistical Evaluation of Total Expiratory Breath Samples Collected throughout a Year: Reproducibility and Applicability toward Olfactory Sensor-Based Breath Diagnostics

Sensors, 2021
The endogenous volatile organic compounds (VOCs) in exhaled breath can be promising biomarkers for various diseases including cancers. An olfactory sensor has a possibility for extracting a specific feature from collective variations of the related VOCs ...
Katsushige Inada, Hiroshi Kojima, Yukiko Cho-Isoda, Ryo Tamura, Gaku Imamura, Kosuke Minami, Takahiro Nemoto, Genki Yoshikawa   +7 more
doaj   +1 more source

Ammonia breath analysis

Sensors & Diagnostics, 2022
Ammonia breath analysis is an important emerging non-invasive tool for the diagnosis and monitoring of diseases because it can provide information about a vast array of biochemical processes occurring in the human body.
Lefferts, MJ, Castell, MR
openaire   +1 more source

Advanced Diagnostic Technology of Volatile Organic Compounds Real Time analysis Analysis From Exhaled Breath of Gastric Cancer Patients Using Proton-Transfer-Reaction Time-of-Flight Mass Spectrometry

Frontiers in Oncology, 2021
BackgroundScreening endoscopy is considered to be the most accurate tool for early detection of gastric cancer, but it is both invasive and costly. It is therefore essential to develop cost-effective and non-invasive diagnostic tools for gastric cancer ...
Yoon Ju Jung, Ho Seok Seo, Ji Hyun Kim, Kyo Young Song, Cho Hyun Park, Han Hong Lee   +5 more
doaj   +1 more source

Discrimination of Diabetes Mellitus Patients and Healthy Individuals Based on Volatile Organic Compounds (VOCs): Analysis of Exhaled Breath and Urine Samples by Using E-Nose and VE-Tongue

Chemosensors, 2023
Studies suggest that breath and urine analysis can be viable non-invasive methods for diabetes management, with the potential for disease diagnosis. In the present work, we employed two sensing strategies.
Omar Zaim, Benachir Bouchikhi, Soukaina Motia, Sònia Abelló, Eduard Llobet, Nezha El Bari   +5 more
doaj   +1 more source

Isotope-Selective Breath Analysis

Conference on Lasers and Electro-Optics, 2017
Isotope-selective breath analysis offers a non-invasive, fast and reliable alternative to traditional methods in numerous clinical applications. Especially stable isotopologues of carbon dioxide have been applied to tens of different studies.
Lehto M., Metsala M., Lehto M., Metsala M., Manninen Albert, Richmond Craig, Hietala Eero, Vasama Hannu, Suopajärvi Pekka, Aikio Rami, Kääriäinen Teemu   +10 more
openaire   +2 more sources

Changes of Exhaled Volatile Organic Compounds in Postoperative Patients Undergoing Analgesic Treatment: A Prospective Observational Study

Metabolites, 2020
Assessment and treatment of postoperative pain can be challenging as objective examination techniques to detect and quantify pain are lacking. We aimed to investigate changes of exhaled volatile organic compounds (VOCs) in patients with postoperative ...
Benjamin Löser, Alina Grabenschröer, Giovanni Pugliese, Pritam Sukul, Phillip Trefz, Jochen K Schubert, Wolfram Miekisch   +6 more
doaj   +1 more source

Breath Analysis for Early Detection of Rising Ketone Bodies in Postpartum Dairy Cows Classified as at Risk of Ketosis

Ruminants, 2023
Ketosis is a metabolic disorder associated with high production and low energy intake in dairy cows. Fat reserves are mobilized, and gluconeogenesis occurs.
Elaine van Erp-van der Kooij, Janiek Derix, Stijn van Gorp, Amy Timmermans, Charles Krijnen, István Fodor, Liesbeth Dingboom   +6 more
doaj   +1 more source