Evidence map›Paper›PMID 22355066›Full record

ArticleEndocrinology2012

The development of hypertension and hyperaldosteronism in a rodent model of life-long obesity.

Carrie A Northcott, Greg D Fink, Hannah Garver, Joseph R Haywood, Erinn L Laimon-Thomson, Jonathon L McClain, Paulo W Pires, William E Rainey, Christine S Rigsby, Anne M Dorrance

Open access · bronzeAbstract read
In one paragraph

Article in Endocrinology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.9field-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

14 citing papers in PubMed, 31 citations in OpenAlex.

  1. Article
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  10. Review
  11. Article
  12. The effects of obesity on the cerebral vasculature.Current vascular pharmacology · 2014
    Review
  13. Review
  14. Animal models in obesity and hypertension.Current hypertension reports · 2013
    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

10 authors at 2 institutions in 1 country.

Carrie A NorthcottDepartment of Pharmacology and Toxicology, Michigan State University, East Lansing, Michigan 48824, USA.
Greg D Fink
Hannah Garver
Joseph R Haywood
Erinn L Laimon-Thomson
Jonathon L McClain
Paulo W Pires
William E Rainey
Christine S Rigsby
Anne M Dorrance
Michigan State University · USAugusta University · US

Funding

MECHANISMS LEADING TO ADRENAL ZONATIONR01DK043140 · NIDDK · UNIVERSITY OF TEXAS SW MED CTR/DALLAS · PI William E Rainey · 1999 to 2026
$7.2M
Paraventricular Nucleus Signaling Mechanisms in HypertensionR00HL087927 · NHLBI · MICHIGAN STATE UNIVERSITY · PI NORTHCOTT, CARRIE A · 2008 to 2010
$747k
Paraventricular Nucleus Signaling Mechanisms in HypertensionK99HL087927 · NHLBI · MICHIGAN STATE UNIVERSITY · PI NORTHCOTT, CARRIE A · 2007 to 2008
$171k
MECHANISMS LEADING TO ADRENAL ZONATIONR29DK043140 · NIDDK · UNIVERSITY OF TEXAS SW MED CTR/DALLAS · PI RAINEY, WILLIAM E · 1994 to 1998
–
NHLBI NIH HHS HL087927NHLBI NIH HHS K99 HL087927NHLBI NIH HHS R00 HL087927NIDDK NIH HHS DK43140NIDDK NIH HHS R01 DK043140
6 · The paper itself

Abstract

Aldosterone has been linked to the deleterious cardiovascular effects of obesity in humans. The association of aldosterone with obesity in rodents is less well defined, particularly in models of diet-induced obesity. We hypothesized that adrenal aldosterone production and aldosterone synthase expression would be increased in rats with obesity-induced hypertension. Male Sprague Dawley rats were fed a high-fat (HF: 36% fat) or control diet from 3 wk of age, and mean arterial pressure (MAP) was measured by telemetry. MAP was increased after 4 wk of HF diet; this was 6 wk before changes in body weight. Mineralocorticoid receptor antagonism did not prevent the HF-induced increase in MAP. After 17 wk on the diets, HF rats had increased body and fat weights (abdominal and epididymal) and were insulin resistant (Homeostasis Model Assessment index: 3.53 ± 0.43 vs. 8.52 ± 1.77; control vs. HF, P < 0.05). Plasma aldosterone levels were increased in the HF rats (64.14 ± 14.96 vs. 206.25 ± 47.55 pg/ml; control vs. HF, P < 0.05). This occurred independently of plasma renin activity (4.8 ± 0.92 vs. 4.73 ± 0.66 ng/ml/h, control vs. HF). The increase in aldosterone was accompanied by a 2-fold increase in adrenal aldosterone synthase mRNA expression and zona glomerulosa hypertrophy. Rats were also studied after 8 wk of HF diet, a time when MAP, but not body weight, was increased. At this time plasma aldosterone was unchanged but plasma renin activity was increased (4.4 ± 0.5 vs. 8.1 ± 1.3 ng/ml/h; control vs. HF, P < 0.05). These studies suggest that rats fed a HF diet from weaning may be a useful model for studying obesity-associated hyperaldosteronism.

Indexed as

Adrenal GlandsAldosteroneAnimalsBlood PressureBody WeightCytochrome P-450 CYP11B2Dietary FatsDisease Models, AnimalHyperaldosteronismHypertensionMaleObesityRatsRats, Sprague-DawleyRenin-Angiotensin SystemAldosteroneCytochrome P-450 CYP11B2Dietary Fats

Identifiers

PMID22355066
PMCPMC3320259
OpenAlexW2105380188

What OpenQuestion holds

Textmetadata
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.