Evidence map›Paper›PMID 24281385›Full record

ArticleThe Journal of pharmacology and experimental therapeutics2014

Dissociation of hyperglycemia from altered vascular contraction and relaxation mechanisms in caveolin-1 null mice.

Luminita H Pojoga, Tham M Yao, Lauren A Opsasnick, Amanda E Garza, Ossama M Reslan, Gail K Adler, Gordon H Williams, Raouf A Khalil

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of pharmacology and experimental therapeutics, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.1field-weighted citation impact, top 14% 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.

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

23 citing papers in PubMed, 33 citations in OpenAlex.

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  7. Journal of the American Heart Association · 2020
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  12. Xanthine oxidase inhibition protects against Western diet-induced aortic stiffness and impaired vasorelaxation in female mice.American journal of physiology. Regulatory, integrative and comparative physiology · 2017
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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

8 authors at 2 institutions in 1 country.

Luminita H PojogaCardiovascular Endocrine Section, Endocrinology, Diabetes and Hypertension Division (L.H.P., T.M.Y., A.E.G., G.K.A., G.H.W.), and Division of Vascular and Endovascular Surgery (L.A.O., O.M.R., R.A.K.), Brigham and Women's Hospital, and Harvard Medical School, Boston, Massachusetts.
Tham M Yao
Lauren A Opsasnick
Amanda E Garza
Ossama M Reslan
Gail K Adler
Gordon H Williams
Raouf A Khalil
Brigham and Women's Hospital · USHarvard University · US

Funding

TRAINING PROGRAM IN HYPERTENSIONT32HL007609 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI ADLER, GAIL KURR · 1985 to 2022
$10.2M
Vascular Mechanisms in Pregnancy-Induced HypertensionR01HL065998 · NHLBI · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI KHALIL, RAOUF A · 2002 to 2016
$4.3M
Caveolin-1 and vascular dysfunctionR01HL104032 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI POJOGA, LUMINITA · 2010 to 2014
$2.1M
Mechanisms of Aldosterone Induced Cardiovascular DamageR01HL069208 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI WILLIAMS, GORDON H · 2003 to 2006
$1.8M
Role of Endothelin B Receptor in Vascular Protection in FemalesR21HL098724 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI KHALIL, RAOUF A · 2010 to 2011
$481k
Mechano-Sensitive Hypoxia-Inducible Factor-MMP Pathway in Venous InsufficiencyR21HL111775 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI KHALIL, RAOUF A · 2013 to 2014
$475k
Vascular Angiotensin Type-2 Receptor in Normal and Hypertensive PregnancyR03HD060702 · NICHD · BRIGHAM AND WOMEN'S HOSPITAL · PI KHALIL, RAOUF A · 2009 to 2010
$172k
NHLBI NIH HHS HL-104032NHLBI NIH HHS HL-111775NHLBI NIH HHS HL-65998NHLBI NIH HHS HL-69208NHLBI NIH HHS HL-98724NHLBI NIH HHS R01 HL065998NHLBI NIH HHS R01 HL069208NHLBI NIH HHS R01 HL104032NHLBI NIH HHS R21 HL098724NHLBI NIH HHS R21 HL111775NHLBI NIH HHS T32 HL007609NHLBI NIH HHS T32-HL007609NICHD NIH HHS HD-60702NICHD NIH HHS R03 HD060702
6 · The paper itself

Abstract

Hyperglycemia and endothelial dysfunction are associated with hypertension, but the specific causality and genetic underpinning are unclear. Caveolin-1 (cav-1) is a plasmalemmal anchoring protein and modulator of vascular function and glucose homeostasis. Cav-1 gene variants are associated with reduced insulin sensitivity in hypertensive individuals, and cav-1(-/-) mice show endothelial dysfunction, hyperglycemia, and increased blood pressure (BP). On the other hand, insulin-sensitizing therapy with metformin may inadequately control hyperglycemia while affecting the vascular outcome in certain patients with diabetes. To test whether the pressor and vascular changes in cav-1 deficiency states are related to hyperglycemia and to assess the vascular mechanisms of metformin under these conditions, wild-type (WT) and cav-1(-/-) mice were treated with either placebo or metformin (400 mg/kg daily for 21 days). BP and fasting blood glucose were in cav-1(-/-) > WT and did not change with metformin. Phenylephrine (Phe)- and KCl-induced aortic contraction was in cav-1(-/-) < WT; endothelium removal, the nitric-oxide synthase (NOS) blocker L-NAME (N(ω)-nitro-L-arginine methyl ester), or soluble guanylate cyclase (sGC) inhibitor 1H-[1,2,4]oxadiazolo[4,3-a]quinoxalin-1-one (ODQ) enhanced Phe contraction, and metformin blunted this effect. Acetylcholine-induced relaxation was in cav-1(-/-) > WT, abolished by endothelium removal, L-NAME or ODQ, and reduced with metformin. Nitric oxide donor sodium nitroprusside was more potent in inducing relaxation in cav-1(-/-) than in WT, and metformin reversed this effect. Aortic eNOS, AMPK, and sGC were in cav-1(-/-) > WT, and metformin decreased total and phosphorylated eNOS and AMPK in cav-1(-/-). Thus, metformin inhibits both vascular contraction and NO-cGMP-dependent relaxation but does not affect BP or blood glucose in cav-1(-/-) mice, suggesting dissociation of hyperglycemia from altered vascular function in cav-1-deficiency states.

Indexed as

AMP-Activated Protein KinasesAnimalsAortaCaveolin 1Endothelium, VascularEnzyme InhibitorsGuanylate CyclaseHyperglycemiaHypertensionHypoglycemic AgentsMaleMetforminMiceMice, KnockoutMuscle, Smooth, VascularNitric Oxide Synthase Type IIIAMP-Activated Protein KinasesCav1 protein, mouseCaveolin 1Enzyme InhibitorsGuanylate CyclaseHypoglycemic AgentsMetforminNitric Oxide Synthase Type IIINos3 protein, mouse

Identifiers

PMID24281385
PMCPMC3912545
OpenAlexW2093209897

What OpenQuestion holds

Texttitle and abstract
Read underepoch 390

Registered trials

None linked

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.