Evidence map›Paper›PMID 24801871›Full record

ArticlePloS one2014

Impaired insulin signaling affects renal organic anion transporter 3 (Oat3) function in streptozotocin-induced diabetic rats.

Anusorn Lungkaphin, Phatchawan Arjinajarn, Anchalee Pongchaidecha, Chutima Srimaroeng, Lisa Chatsudthipong, Varanuj Chatsudthipong

RetractedAbstract readRetracted Publication
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It has been retracted, and should not be counted. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

15 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  6. Differences in proximal tubular solute clearance across common etiologies of chronic kidney disease.Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association · 2020
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors.

Anusorn LungkaphinDepartment of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.
Phatchawan ArjinajarnDepartment of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand.
Anchalee PongchaidechaDepartment of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.
Chutima SrimaroengDepartment of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.
Lisa ChatsudthipongFaculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand.
Varanuj ChatsudthipongDepartment of Physiology, Faculty of Science, Mahidol University, Bangkok, Thailand.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Organic anion transporter 3 (Oat3) is a major renal Oats expressed in the basolateral membrane of renal proximal tubule cells. We have recently reported decreases in renal Oat3 function and expression in diabetic rats and these changes were recovered after insulin treatment for four weeks. However, the mechanisms by which insulin restored these changes have not been elucidated. In this study, we hypothesized that insulin signaling mediators might play a crucial role in the regulation of renal Oat3 function. Experimental diabetic rats were induced by a single intraperitoneal injection of streptozotocin (65 mg/kg). One week after injection, animals showing blood glucose above 250 mg/dL were considered to be diabetic and used for the experiment in which insulin-treated diabetic rats were subcutaneously injected daily with insulin for four weeks. Estrone sulfate (ES) uptake into renal cortical slices was examined to reflect the renal Oat3 function. The results showed that pre-incubation with insulin for 30 min (short term) stimulated [3H]ES uptake into the renal cortical slices of normal control rats. In the untreated diabetic rats, pre-incubation with insulin for 30 min failed to stimulate renal Oat3 activity. The unresponsiveness of renal Oat3 activity to insulin in the untreated diabetic rats suggests the impairment of insulin signaling. Indeed, pre-incubation with phosphoinositide 3-kinase (PI3K) and protein kinase C zeta (PKCζ) inhibitors inhibited insulin-stimulated renal Oat3 activity. In addition, the expressions of PI3K, Akt and PKCζ in the renal cortex of diabetic rats were markedly decreased. Prolonged insulin treatment in diabetic rats restored these alterations toward normal levels. Our data suggest that the decreases in both function and expression of renal Oat3 in diabetes are associated with an impairment of renal insulin-induced Akt/PKB activation through PI3K/PKCζ/Akt/PKB signaling pathway.

Indexed as

Signal TransductionAnimalsDiabetes Mellitus, ExperimentalInsulinKidneyMaleOrganic Anion Transporters, Sodium-IndependentProtein Kinase InhibitorsRatsRats, WistarInsulinOrganic Anion Transporters, Sodium-Independentorganic anion transport protein 3Protein Kinase Inhibitors

Identifiers

PMID24801871
PMCPMC4011703

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Registered trials

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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.