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Is Physical Activity, Obesity, and Ethnicity Associated With the Tethering and Migration of Pro-inflammatory Monocytes?

7 aprile 2022 aggiornato da: Nicolette Bishop, Loughborough University

Is Physical Activity Associated With the Tethering and Migration of Pro-inflammatory Monocytes in White European and South Asian Males With and Without Central Obesity.

Being south Asian or centrally obese may be associated with an increased risk of inflammation. The investigators are seeking to investigate whether this is the case by recruiting white European and south Asian men who are lean or have central obesity. Further, the investigators wish to investigate whether physical activity influences the associations.

Panoramica dello studio

Stato

Completato

Condizioni

Intervento / Trattamento

Descrizione dettagliata

Central obesity is associated with an increased risk of cardiovascular disease. Further, south Asians have been shown to be at an increased risk of cardiovascular disease compared to white Europeans.

Cardiovascular disease is underpinned by inflammation. Evidence suggests that people with obesity have a more pro-inflammatory and pro-migratory monocyte profile compared with individuals who are lean. The excessive monocyte migration contributes to metabolic dysfunction over time, increasing the risk of chronic disease. However, there is no evidence in south Asians.

One modifiable risk factor which may be able to influence this is physical inactivity, with higher levels of physical activity being associated with reduced inflammation. However, although south Asians are more at risk of cardiovascular disease than white Europeans, evidence suggests south Asians are also less physically active than white Europeans.

The investigators are looking to recruit south Asian and white European men who are lean or have central obesity to investigate 1) is there an association between ethnicity and the tethering and migration of pro-inflammatory monocytes? 2) is there an association between central obesity and the tethering and migration of pro-inflammatory monocytes, and is there an interaction with ethnicity? 3) do higher levels of physical activity influence the tethering and migration of pro-inflammatory monocytes, and is this influenced by ethnicity or central obesity?

To investigate this, the investigators are looking to recruit south Asian and white European men who are either centrally obese or lean. The investigators require 1 blood sample and the participants to wear an activity monitor for 7 days.

Peripheral blood mononuclear cells (PBMCs) will be isolated from the whole blood sample. Then, the investigators will quantify the migratory capacity of PBMCs to a fixed chemokine gradient over time. Further, the investigators will phenotype the monocytes to indicate the characteristics of the monocytes that migrate towards the chemokine mix.

The activity monitor will quantify habitual physical activity, which will be used in the statistical analyses to investigate whether physical activity may influence the response.

It is important to investigate as it will further scientific knowledge on the underpinnings of chronic disease and enable a better understanding on the role of physical activity to potentially reduce the risk.

Tipo di studio

Osservativo

Iscrizione (Effettivo)

40

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Luoghi di studio

      • Loughborough, Regno Unito, LE113TU
        • National Centre for Sport and Exercise Medicine

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

Da 18 anni a 60 anni (Adulto)

Accetta volontari sani

Sì

Sessi ammissibili allo studio

Maschio

Metodo di campionamento

Campione non probabilistico

Popolazione di studio

All participants will be recruited from the local community using advertisements published online and across local facilities and shops.

Descrizione

Inclusion Criteria:

  • Non-smokers (including vaping)
  • Not currently dieting

Exclusion Criteria:

  • Musculoskeletal injury that has affected normal ambulation within the last month;
  • Any muscle or bone injuries that influence physical activity
  • Free from heart conditions and blood disorders
  • Weight fluctuation greater than 3kg in the previous 3 months
  • Taking anti-inflammatory medication

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

Coorti e interventi

Gruppo / Coorte
Intervento / Trattamento
South Asians who are lean

The south Asian group who are lean will be of south Asian ethnicity and a waist circumference <90cm.

The group will receive an accelerometer (Actigraph GT3x) to wear for 7 days to measure habitual physical activity. They will then provide a single blood donation in a fasted state which we will use to quantify the migration of pro-inflammatory monocytes towards adipose tissue specific media. This will then be compared to the other 3 groups to investigate the interaction between ethnicity, central obesity, and physical activity with the migration of pro-inflammatory monocytes.

Metabolic markers will be analysed and presented in a participant characteristics table.

7 days habitual physical activity via accelerometry (ActiGraph GT3x). Specifically steps per day, light physical activity (minutes per day), and moderate to vigorous physical activity (minutes per day).
South Asians with central obesity

The south Asian group with central obesity will be of south Asian ethnicity and a waist circumference of 90cm or greater.

The group will receive an accelerometer (Actigraph GT3x) to wear for 7 days to measure habitual physical activity. They will then provide a single blood donation in a fasted state which we will use to quantify the migration of pro-inflammatory monocytes towards adipose tissue specific media. This will then be compared to the other 3 groups to investigate the interaction between ethnicity, central obesity, and physical activity with the migration of pro-inflammatory monocytes.

Metabolic markers will be analysed and presented in a participant characteristics table.

7 days habitual physical activity via accelerometry (ActiGraph GT3x). Specifically steps per day, light physical activity (minutes per day), and moderate to vigorous physical activity (minutes per day).
White Europeans who are lean

The white European group who are lean will be of white European ethnicity and a waist circumference <94cm.

The group will receive an accelerometer (Actigraph GT3x) to wear for 7 days to measure habitual physical activity. They will then provide a single blood donation in a fasted state which we will use to quantify the migration of pro-inflammatory monocytes towards adipose tissue specific media. This will then be compared to the other 3 groups to investigate the interaction between ethnicity, central obesity, and physical activity with the migration of pro-inflammatory monocytes.

Metabolic markers will be analysed and presented in a participant characteristics table.

7 days habitual physical activity via accelerometry (ActiGraph GT3x). Specifically steps per day, light physical activity (minutes per day), and moderate to vigorous physical activity (minutes per day).
White Europeans with central obesity

The white European group with central obesity will be of white European ethnicity and a waist circumference of 94cm or greater.

The group will receive an accelerometer (Actigraph GT3x) to wear for 7 days to measure habitual physical activity. They will then provide a single blood donation in a fasted state which we will use to quantify the migration of pro-inflammatory monocytes towards adipose tissue specific media. This will then be compared to the other 3 groups to investigate the interaction between ethnicity, central obesity, and physical activity with the migration of pro-inflammatory monocytes.

Metabolic markers will be analysed and presented in a participant characteristics table.

7 days habitual physical activity via accelerometry (ActiGraph GT3x). Specifically steps per day, light physical activity (minutes per day), and moderate to vigorous physical activity (minutes per day).

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Concentrations of classical monocytes.
Lasso di tempo: The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Determined via flow cytometry. Presented as cells/uL.
The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Concentrations of intermediate monocytes.
Lasso di tempo: The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Determined via flow cytometry. Presented as cells/uL.
The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Concentrations of non-classical monocytes.
Lasso di tempo: The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Determined via flow cytometry. Presented as cells/uL.
The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Concentrations of CCR2+ monocytes.
Lasso di tempo: The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Determined via flow cytometry. Presented as cells/uL.
The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Concentrations of CCR2+ classical monocytes.
Lasso di tempo: The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Determined via flow cytometry. Presented as cells/uL.
The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Concentrations of CCR5+ monocytes.
Lasso di tempo: The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Determined via flow cytometry. Presented as cells/uL.
The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Number of monocytes that migrated.
Lasso di tempo: The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Determined via flow cytometry. Presented as number of cells.
The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Number of classical monocytes that migrated.
Lasso di tempo: The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Determined via flow cytometry. Presented as number of cells.
The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Number of intermediate monocytes that migrated.
Lasso di tempo: The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Determined via flow cytometry. Presented as number of cells.
The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Number of non-classical monocytes that migrated.
Lasso di tempo: The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Determined via flow cytometry. Presented as number of cells.
The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Number of CCR2+ monocytes that migrated.
Lasso di tempo: The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Determined via flow cytometry. Presented as number of cells.
The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Number of CCR2+ classical monocytes that migrated.
Lasso di tempo: The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Determined via flow cytometry. Presented as number of cells.
The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Number of CCR5+ monocytes that migrated.
Lasso di tempo: The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Determined via flow cytometry. Presented as number of cells.
The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Number of monocytes that tethered.
Lasso di tempo: The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Determined via flow cytometry. Presented as number of cells.
The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Number of classical monocytes that tethered.
Lasso di tempo: The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Determined via flow cytometry. Presented as number of cells.
The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Number of intermediate monocytes that tethered.
Lasso di tempo: The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Determined via flow cytometry. Presented as number of cells.
The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Number of non-classical monocytes that tethered.
Lasso di tempo: The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Determined via flow cytometry. Presented as number of cells.
The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Number of CCR2+ monocytes that tethered.
Lasso di tempo: The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Determined via flow cytometry. Presented as number of cells.
The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Number of CCR2+ classical monocytes that tethered.
Lasso di tempo: The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Determined via flow cytometry. Presented as number of cells.
The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Number of CCR5+ monocytes that tethered.
Lasso di tempo: The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Determined via flow cytometry. Presented as number of cells.
The outcome will be measured as a single-time point assessment in a fasted state on day 1.
CCR2+ receptor expression.
Lasso di tempo: The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Determined via flow cytometry.
The outcome will be measured as a single-time point assessment in a fasted state on day 1.
CCR5+ receptor expression.
Lasso di tempo: The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Determined via flow cytometry.
The outcome will be measured as a single-time point assessment in a fasted state on day 1.

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Concentration of total cholesterol.
Lasso di tempo: The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Fasted concentration of total cholesterol. Presented as mmol/L.
The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Concentration of high-density lipoprotein cholesterol (HDL).
Lasso di tempo: The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Fasted concentration of high-density lipoprotein cholesterol. Presented as mmol/L.
The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Concentration of low-density lipoprotein cholesterol (LDL).
Lasso di tempo: The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Fasted concentration of low-density lipoprotein cholesterol. Presented as mmol/L.
The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Concentration of triacylglycerol.
Lasso di tempo: The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Fasted concentration of triacylglycerol. Presented as mmol/L.
The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Concentration of glucose.
Lasso di tempo: The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Fasted concentration of glucose. Presented as mmol/L.
The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Concentration of c-reactive protein.
Lasso di tempo: The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Fasted concentration of c-reactive protein. Presented as mg/L.
The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Concentration of interleukin-6.
Lasso di tempo: The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Fasted concentration of interleukin-6. Presented as pg/mL.
The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Concentration of non-esterified free fatty acids.
Lasso di tempo: The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Fasted concentration of non-esterified free fatty acids. Presented as mmol/L.
The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Body fat percentage.
Lasso di tempo: The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Body fat percentage determined via bioelectrical impedance analysis. Presented as percentage.
The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Lean mass.
Lasso di tempo: The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Determined via bioelectrical impedance analysis. Presented in kilograms.
The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Waist circumference
Lasso di tempo: The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Waist circumference. Presented as centimetres.
The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Systolic blood pressure.
Lasso di tempo: The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Presented as mmHg.
The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Diastolic blood pressure.
Lasso di tempo: The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Presented as mmHg.
The outcome will be measured as a single-time point assessment in a fasted state on day 1.
Light physical activity minutes per day.
Lasso di tempo: Over 7 days +/- the assessment day
Time spent participating in light physical activity. Presented as minutes per day.
Over 7 days +/- the assessment day
Moderate-to-vigorous activity minutes per day.
Lasso di tempo: Over 7 days +/- the assessment day
Time spent participating in moderate-to-vigorous physical activity. Presented as minutes per day.
Over 7 days +/- the assessment day
Daily steps.
Lasso di tempo: Over 7 days +/- the assessment day
Total daily steps. Presented as steps per day.
Over 7 days +/- the assessment day

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Investigatori

  • Investigatore principale: Nicolette Bishop, Loughborough University

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Effettivo)

1 marzo 2021

Completamento primario (Effettivo)

1 agosto 2021

Completamento dello studio (Effettivo)

1 febbraio 2022

Date di iscrizione allo studio

Primo inviato

9 febbraio 2021

Primo inviato che soddisfa i criteri di controllo qualità

16 febbraio 2021

Primo Inserito (Effettivo)

18 febbraio 2021

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

8 aprile 2022

Ultimo aggiornamento inviato che soddisfa i criteri QC

7 aprile 2022

Ultimo verificato

1 aprile 2022

Maggiori informazioni

Termini relativi a questo studio

Altri numeri di identificazione dello studio

  • 2020-1885-2140

Piano per i dati dei singoli partecipanti (IPD)

Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?

SÌ

Descrizione del piano IPD

Anonymised individual participant data for all primary and secondary outcome measures will be made upon request.

Periodo di condivisione IPD

The data will be available 6 months after publication for 12 months.

Criteri di accesso alla condivisione IPD

Data will be available to other researchers who would like to run the same statistical methods we have used to check the interpretation of results.

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

No

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .