Evidence map›Paper›PMID 22998737›Full record

Trial reportCardiovascular diabetology2012

Effects of weight loss and insulin reduction on arterial stiffness in the SAVE trial.

Timothy M Hughes, Andrew D Althouse, Nancy A Niemczyk, Marquis S Hawkins, Allison L Kuipers, Kim Sutton-Tyrrell

Registry-linked trialOpen access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Cardiovascular diabetology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00366990 (Clinical Trial to Reverse Early Arterial Stiffening), which is not on this map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
5.7field-weighted citation impact, top 3% of its field
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.

NCT00366990 nacompletednot on this map

Clinical Trial to Reverse Early Arterial Stiffening

TypeinterventionalSponsorUniversity of PittsburghRan2007 to 2013Enrolled349ConditionsCardiovascular Diseases, ObesityArmsLow Sodium Diet, Regular Sodium Intake
3 · Its place in the literature

Who cites it

29 citing papers in PubMed, 66 citations in OpenAlex.

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  20. Strategies for Achieving Healthy Vascular Aging.Hypertension (Dallas, Tex. : 1979) · 2018
    Review
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

6 authors at 1 institution in 1 country.

Timothy M HughesDepartment of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA. tmh57@pitt.edu
Andrew D Althouse
Nancy A Niemczyk
Marquis S Hawkins
Allison L Kuipers
Kim Sutton-Tyrrell
University of Pittsburgh · US

Funding

Cardiovascular Epidemiology Training ProgramT32HL083825 · NHLBI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI AKIRA SEKIKAWA · 2008 to 2026
$6.1M
Clinical Trail to Reverse Early Arterial StiffeningR01HL077525 · NHLBI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI BARINAS-MITCHELL, EMMA JM · 2006 to 2010
$3.5M
Predoctoral Training Program in Reproductive, Perinatal & Pediatric EpidemiologyT32HD055162 · NICHD · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI DAY, NANCY LEE · 2007 to 2011
$1.0M
NHLBI NIH HHS R01 HL077525-01A2NHLBI NIH HHS T32HL083825NICHD NIH HHS T32HD0055162-04
6 · The paper itself

Abstract

backgroundChronic arterial stiffness contributes to the negative health effects of obesity and insulin resistance, which include hypertension, stroke, and increased cardiovascular and all-cause mortality. Weight loss and improved insulin sensitivity are individually associated with improved central arterial stiffness; however, their combined effects on arterial stiffness are poorly understood. The purpose of this study was to determine how insulin levels modify the improvements in arterial stiffness seen with weight loss in overweight and obese young adults.

methodsTo assess the effects of weight loss and decreased fasting insulin on vascular stiffness, we studied 339 participants in the Slow the Adverse Effects of Vascular Aging (SAVE) trial. At study entry, the participants were aged 20-45, normotensive, non-diabetic, and had a body-mass index of 25-39.9 kg/m2. Measures of pulse wave velocity (PWV) in the central (carotid-femoral (cfPWV)), peripheral (femoral-ankle (faPWV)), and mixed (brachial-ankle (baPWV)) vascular beds were collected at baseline and 6 months. The effects of 6-month change in weight and insulin on measures of PWV were estimated using multivariate regression.

resultsAfter adjustment for baseline risk factors and change in systolic blood pressure, 6-month weight loss and 6-month change in fasting insulin independently predicted improvement in baPWV but not faPWV or cfPWV. There was a significant interaction between 6-month weight change and change in fasting insulin when predicting changes in baPWV (p < 0.001). Individuals experiencing both weight loss and insulin reductions showed the greatest improvement in baPWV.

conclusionsYoung adults with excess weight who both lower their insulin levels and lose weight see the greatest improvement in vascular stiffness. This improvement in vascular stiffness with weight loss and insulin declines may occur throughout the vasculature and may not be limited to individual vascular beds.

Indexed as

Vascular StiffnessWeight LossAdultAnkle Brachial IndexArterial PressureBiomarkersBody Mass IndexDown-RegulationFastingFemaleHumansInsulinLinear ModelsMaleMiddle AgedMultivariate AnalysisBiomarkersInsulin

Identifiers

PMID22998737
PMCPMC3468408
OpenAlexW2159869147

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

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.