Evidence map›Paper›PMID 22562515›Full record

ArticleInvestigative ophthalmology & visual science2012

Antidiabetic drug metformin suppresses endotoxin-induced uveitis in rats.

Nilesh M Kalariya, Mohammad Shoeb, Naseem H Ansari, Satish K Srivastava, Kota V Ramana

Open access · bronzeAbstract read
In one paragraph

Article in Investigative ophthalmology & visual science, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

31 citing papers in PubMed, 73 citations in OpenAlex.

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  18. Pharmaceutical Impact ofFrontiers in endocrinology · 2018
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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

5 authors at 1 institution in 1 country.

Nilesh M KalariyaDepartment of Ophthalmology & Visual Sciences, University of Texas Medical Branch, Galveston, Texas 77555, USA.
Mohammad Shoeb
Naseem H Ansari
Satish K Srivastava
Kota V Ramana
The University of Texas Medical Branch at Galveston · US

Funding

Role of Aldose Reductase in Diabetic ComplicationsR37DK036118 · NIDDK · UNIVERSITY OF TEXAS MEDICAL BR GALVESTON · PI SRIVASTAVA, SATISH K · 2003 to 2013
$4.1M
Amelioration of Uveitis by Aldose reductase InhibitionR01EY018591 · NEI · UNIVERSITY OF TEXAS MED BR GALVESTON · PI RAMANA, KOTA VENKATA · 2009 to 2010
$755k
ALDOSE REDUCTASE AND DIABETIC COMPLICATIONSR01DK036118 · NIDDK · UNIVERSITY OF TEXAS MEDICAL BR GALVESTON · PI SRIVASTAVA, SATISH K · 1987 to 2002
$626k
Structural Biology /Structural Genomics of TraffickingZ01DK036118 · NIDDK · DIABETES, DIGESTIVE, KIDNEY DISEASES · PI HURLEY, JAMES H · 1994 to 2006
–
Intramural NIH HHS Z01 DK036118NEI NIH HHS EY015891NEI NIH HHS R01 EY018591NIDDK NIH HHS R01 DK036118NIDDK NIH HHS R37 DK036118
6 · The paper itself

Abstract

purposeTo investigate the therapeutic effects of metformin, a commonly used antidiabetic drug, in preventing endotoxin-induced uveitis (EIU) in rats.

methodsEIU in Lewis rats was developed by subcutaneous injection of lipopolysaccharide (LPS; 150 μg). Metformin (300 mg/kg body weight, intraperitoneally) or its carrier was injected either 12 hours before or 2 hours after LPS induction. Three and 24 hours after EIU, eyes were enucleated and aqueous humor (AqH) was collected. The MILLIPLEX-MAG Rat cytokine-chemokine magnetic bead array was used to determine inflammatory cytokines. The expression of Cox-2, phosphorylation of AMPK, and NF-κB (p65) were determined immunohistochemically. Primary human nonpigmented ciliary epithelial cells (HNPECs) were used to determine the in vitro efficacy of metformin.

resultsCompared with controls, the EIU rat AqH had significantly increased number of infiltrating cells and increased levels of various cytokines and chemokines (TNF-α, MCP-1, IL-1β, MIP-1α, IL-6, Leptin, and IL-18) and metformin significantly prevented the increase. Metformin also prevented the expression of Cox-2 and phosphorylation of p65, and increased the activation of AMPK in the ciliary bodies and retinal tissues. Moreover, metformin prevented the expression of Cox-2, iNOS, and activation of NF-kB in the HNPECs and decreased the levels of NO and PGE2 in cell culture media.

conclusionsOur results for the first time demonstrate a novel role of the antidiabetic drug, metformin, in suppressing uveitis in rats and suggest that this drug could be developed to prevent uveitis complications.

Indexed as

Disease Models, AnimalAMP-Activated Protein Kinase KinasesAnimalsAqueous HumorBlotting, WesternCyclooxygenase 2CytokinesEnzyme-Linked Immunosorbent AssayHypoglycemic AgentsInjections, IntraperitonealLipopolysaccharidesMaleMetforminPhosphorylationProtein KinasesRatsAMP-Activated Protein Kinase KinasesCyclooxygenase 2CytokinesHypoglycemic AgentsLipopolysaccharidesMetforminProtein KinasesPtgs2 protein, ratTranscription Factor RelA

Identifiers

PMID22562515
PMCPMC3390006
OpenAlexW2331672431

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.