Evidence map›Paper›PMID 22189553›Full record

ArticleAmerican journal of physiology. Cell physiology2012

Alterations of calcium channels and cell excitability in intracardiac ganglion neurons from type 2 diabetic rats.

Jinxu Liu, Huiyin Tu, Hong Zheng, Libin Zhang, Thai P Tran, Robert L Muelleman, Yu-Long Li

Open access · greenAbstract read
In one paragraph

Article in American journal of physiology. Cell physiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.0field-weighted citation impact, top 20% 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

19 citing papers in PubMed, 35 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Article
  5. Review
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Reduced N-Type CaJournal of the American Heart Association · 2018
    Article
  14. Article
  15. Article
  16. Article
  17. Attenuated dopaminergic tone in the paraventricular nucleus contributing to sympathoexcitation in rats with Type 2 diabetes.American journal of physiology. Regulatory, integrative and comparative physiology · 2014
    Article
  18. Article
  19. Article
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

7 authors at 1 institution in 1 country.

Jinxu LiuDepartment of Emergency Medicine, University of Nebraska Medical Center, Omaha, 68198-5850, USA.
Huiyin Tu
Hong Zheng
Libin Zhang
Thai P Tran
Robert L Muelleman
Yu-Long Li
University of Nebraska Medical Center · US

Funding

Dysfunction of Baroreceptor Neurons in Heart Failure: Cellular and Molecular MechR01HL098503 · NHLBI · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI LI, YU-LONG · 2010 to 2013
$1.5M
NHLBI NIH HHS R01 HL098503
6 · The paper itself

Abstract

Clinical study has demonstrated that patients with type 2 diabetes with attenuated arterial baroreflex have higher mortality rate compared with those without arterial baroreflex dysfunction. As a final pathway for the neural control of the cardiac function, functional changes of intracardiac ganglion (ICG) neurons might be involved in the attenuated arterial baroreflex in the type 2 diabetes mellitus (T2DM). Therefore, we measured the ICG neuron excitability and Ca(2+) channels in the sham and T2DM rats. T2DM was induced by a combination of both high-fat diet and low-dose streptozotocin (STZ, 30 mg/kg ip) injection. After 12-14 wk of the above treatment, the T2DM rats presented hyperglycemia, hyperlipidemia, and insulin resistance but no hyperinsulinemia, which closely mimicked the clinical features of the patients with T2DM. Data from immunofluorescence staining showed that L, N, P/Q, and R types of Ca(2+) channels were expressed in the ICG neurons, but only protein expression of N-type Ca(2+) channels was decreased in the ICG neurons from T2DM rats. Using whole cell patch-clamp technique, we found that T2DM significantly reduced the Ca(2+) currents and cell excitability in the ICG neurons. ω-Conotoxin GVIA (a specific N-type Ca(2+) channel blocker, 1 μM) lowered the Ca(2+) currents and cell excitability toward the same level in sham and T2DM rats. These results indicate that the decreased N-type Ca(2+) channels contribute to the suppressed ICG neuron excitability in T2DM rats. From this study, we think high-fat diet/STZ injection-induced T2DM might be an appropriate animal model to test the cellular and molecular mechanisms of cardiovascular autonomic dysfunction.

Indexed as

AnimalsArteriesBaroreflexCalciumCalcium Channel BlockersCalcium ChannelsDiabetes Mellitus, ExperimentalDiabetes Mellitus, Type 2Diet, High-FatGangliaHeartMaleNeuronsomega-Conotoxin GVIARatsRats, Sprague-DawleyCalciumCalcium Channel BlockersCalcium Channelsomega-Conotoxin GVIARNA, Messenger

Identifiers

PMID22189553
PMCPMC3774552
OpenAlexW2163765261

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.