Evidence map›Paper›PMID 31362724›Full record

ArticleRespiratory research2019

Systemic Immuno-metabolic alterations in chronic obstructive pulmonary disease (COPD).

Amit R Agarwal, Smita Kadam, Ankita Brahme, Manas Agrawal, Komalkirti Apte, Govinda Narke, Kushal Kekan, Sapna Madas, Sundeep Salvi

Abstract read
In one paragraph

Article in Respiratory research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing 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

35 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

9 authors.

Amit R AgarwalMolecular Respiratory Research Laboratory, Chest Research Foundation, Sr. No 15, Marigold Premises, Behind Gold Adlabs, Pune, Pune, 411014, Maharashtra, India. aagarwal@crfindia.com.ORCID http://orcid.org/0000-0002-5691-1183
Smita KadamMolecular Respiratory Research Laboratory, Chest Research Foundation, Sr. No 15, Marigold Premises, Behind Gold Adlabs, Pune, Pune, 411014, Maharashtra, India.
Ankita BrahmeMolecular Respiratory Research Laboratory, Chest Research Foundation, Sr. No 15, Marigold Premises, Behind Gold Adlabs, Pune, Pune, 411014, Maharashtra, India.
Manas AgrawalMolecular Respiratory Research Laboratory, Chest Research Foundation, Sr. No 15, Marigold Premises, Behind Gold Adlabs, Pune, Pune, 411014, Maharashtra, India.
Komalkirti ApteMolecular Respiratory Research Laboratory, Chest Research Foundation, Sr. No 15, Marigold Premises, Behind Gold Adlabs, Pune, Pune, 411014, Maharashtra, India.
Govinda NarkeMolecular Respiratory Research Laboratory, Chest Research Foundation, Sr. No 15, Marigold Premises, Behind Gold Adlabs, Pune, Pune, 411014, Maharashtra, India.
Kushal KekanMolecular Respiratory Research Laboratory, Chest Research Foundation, Sr. No 15, Marigold Premises, Behind Gold Adlabs, Pune, Pune, 411014, Maharashtra, India.
Sapna MadasMolecular Respiratory Research Laboratory, Chest Research Foundation, Sr. No 15, Marigold Premises, Behind Gold Adlabs, Pune, Pune, 411014, Maharashtra, India.
Sundeep SalviMolecular Respiratory Research Laboratory, Chest Research Foundation, Sr. No 15, Marigold Premises, Behind Gold Adlabs, Pune, Pune, 411014, Maharashtra, India.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMetabolic adaptation in immune cells is necessary to modulate immune cell function as it is intricately coupled with intracellular metabolism. We aimed to characterize the metabolic state of human peripheral blood mononuclear cells (PBMCs) after long-term exposure to tobacco smoke in smokers with preserved lung function and COPD subjects.

methodsPBMCs were isolated from healthy non-smokers (HNS), healthy smokers (HS) and COPD subjects, cultured and the mitochondrial respiration while utilizing glucose (glycolysis), fatty acids (β-oxidation) or pyruvate (direct Krebs' cycle substrate) was measured using the XFp Extracellular Flux Analyzer. Plasma levels of inflammatory cytokines IFN-γ, IL-17, TNF-α, IL-5, IL-9 and IFN-α were measured using flow cytometry. RAW264.7 cells were exposed to cigarette smoke condensate (CSC) for 1 h and its effect on cell viability, cellular metabolism and phagocytosis ability were also studied. Patient's data was analyzed using the Mann Whitney U test, whereas Student's t test was performed to analyze the in-vitro data.

resultsPBMCs from COPD subjects showed a significant decrease in extracellular acidification rate (ECAR) while utilizing glucose as compared to HNS (151.9 Vs 215%). Mitochondrial oxygen consumption rate (OCR) on palmitate or pyruvate was also found to be significantly lower in COPD subjects as compared to HS and a strong positive correlation between palmitate OCR in PBMCs and FEV

conclusionsThese findings indicate a metabolic basis for the inflammatory response in COPD and could suggest a new therapeutic target for controlling the immune response and delaying the onset of disease.

trial registrationThis observational study was retrospectively registered in the Clinical Trails Registry - India (ICMR - NIMS) on 19th January 2018 with the registration number CTRI/2018/01/011441 .

Indexed as

AdultAgedAnimalsCells, CulturedCell SurvivalCigarette SmokingFemaleHumansImmunity, CellularInflammation MediatorsLeukocytes, MononuclearMaleMiceMiddle AgedPulmonary Disease, Chronic ObstructiveRAW 264.7 CellsInflammation MediatorsSmokeCigarette smokeFatty acidsGlucoseMetabolismPBMCs

Identifiers

PMID31362724
PMCPMC6668083

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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.