Effects of bariatric surgery on telomere length and T-cell aging. View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2019-04-12

AUTHORS

F Jongbloed, R W J Meijers, J N M IJzermans, R A Klaassen, M E T Dollé, S van den Berg, M G H Betjes, R W F de Bruin, E van der Harst, N H R Litjens

ABSTRACT

BACKGROUND: Obesity adversely affects health and is associated with subclinical systemic inflammation and features of accelerated aging, including the T-cell immune system. The presence of metabolic syndrome (MetS) may accelerate, while bariatric surgery might reverse these phenomena. To examine the effects of MetS and bariatric surgery on T-cell aging, we measured relative telomere length (RTL) and T-cell differentiation status in obese patients before and after bariatric surgery. METHODS: WHO II/III classified obese patients scheduled for bariatric surgery were included: 41 without MetS and 67 with MetS. RTL and T-cell differentiation status were measured in circulating CD4+ and CD8+ T cells via flow cytometry. T-cell characteristics were compared between patients with and without MetS prior to and at 3, 6, and 12 months after surgery considering effects of age, cytomegalovirus-serostatus, and weight loss. RESULTS: Thymic output, represented by numbers of CD31-expressing naive T cells, showed an age-related decline in patients with MetS. MetS significantly enhanced CD8+ T-cell differentiation. Patients with MetS had significant lower CD4+ RTL than patients without MetS. Within the first 6 months after bariatric surgery, RTL increased in CD4+ T cells after which it decreased at month 12. A decline in both thymic output and more differentiated T cells was seen following bariatric surgery, more pronounced in the MetS group and showing an association with percentage of body weight loss. CONCLUSIONS: In obese patients, MetS results in attrition of RTL and accelerated T-cell differentiation. Bariatric surgery temporarily reverses these effects. These data suggest that MetS is a risk factor for accelerated aging of T cells and that MetS should be a more prominent factor in the decision making for eligibility for bariatric surgery. More... »

Identifiers

URI

http://scigraph.springernature.com/pub.10.1038/s41366-019-0351-y

DOI

http://dx.doi.org/10.1038/s41366-019-0351-y

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1113380320

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/30979972


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Download the RDF metadata as:  json-ld nt turtle xml License info

HOW TO GET THIS DATA PROGRAMMATICALLY:

JSON-LD is a popular format for linked data which is fully compatible with JSON.

curl -H 'Accept: application/ld+json' 'https://scigraph.springernature.com/pub.10.1038/s41366-019-0351-y'

N-Triples is a line-based linked data format ideal for batch operations.

curl -H 'Accept: application/n-triples' 'https://scigraph.springernature.com/pub.10.1038/s41366-019-0351-y'

Turtle is a human-readable linked data format.

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RDF/XML is a standard XML format for linked data.

curl -H 'Accept: application/rdf+xml' 'https://scigraph.springernature.com/pub.10.1038/s41366-019-0351-y'


 

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