Evidence map›Paper›PMID 24584604›Full record

ArticlePeritoneal dialysis international : journal of the International Society for Peritoneal Dialysis

Alterations of intercellular junctions in peritoneal mesothelial cells from patients undergoing dialysis: effect of retinoic Acid.

Carmen Retana, Elsa Sanchez, Alejandro Perez-Lopez, Armando Cruz, Jesus Lagunas, Carmen Cruz, Socorro Vital, Jose L Reyes

Open access · greenAbstract read
In one paragraph

Article in Peritoneal dialysis international : journal of the International Society for Peritoneal Dialysis. 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
0.2field-weighted citation impact, top 47% 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, 26 citations in OpenAlex.

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  14. The Peritoneum: Beyond the Tissue - A Review.Frontiers in physiology · 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

8 authors at 4 institutions in 1 country.

Carmen RetanaPharmacology Dept., Centre for Research and Advanced Studies National Polytechnic Institute, Mexico.
Elsa SanchezPhysiology, Biophysics and Neurosciences Dept., Centre for Research and Advanced Studies National Polytechnic Institute, Mexico.
Alejandro Perez-LopezDept. of Nephrology, Hospital Central Norte de PEMEX, Mexico.
Armando CruzUnidad Medica Alta Especialidad, Hospital General la Raza, Instituto Mexicano del Seguro Social (IMSS), Mexico.
Jesus LagunasUnidad Medica Alta Especialidad, Hospital General la Raza, Instituto Mexicano del Seguro Social (IMSS), Mexico.
Carmen CruzDept. of Nephrology, Hospital Regional No. 1 del IMSS, Mexico.
Socorro VitalDept. of Nephrology, Hospital Juarez de Mexico, Mexico.
Jose L ReyesPhysiology, Biophysics and Neurosciences Dept., Centre for Research and Advanced Studies National Polytechnic Institute, Mexico.
Instituto Politécnico Nacional · MXMexican Social Security Institute · MXHospital Juárez de México · MXPemex (Mexico) · MX

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDialysis patients are classified according to their peritoneal permeability as low transporter (LT, low solute permeability) or high transporter (HT, high solute permeability). Tight junction (TJ) proteins are critical to maintain ions, molecules and water paracellular transport through peritoneum. Exposure to peritoneal dialysis solutions causes damage to TJ in human peritoneal mesothelial cells (HPMCs). We analyzed the quantity, distribution and function of TJ proteins: claudin-1, -2 and -8, ZO-1 and occludin, in HPMC cultures from LT and HT patients. Since all-trans retinoic acid (ATRA) might modify the expression of TJ proteins, we studied its effect on HPMCs.

methodsControl HPMCs were isolated from human omentum, while HT or LT cells were obtained from dialysis effluents. Cells were cultured in presence of ATRA 0, 50 or 100 nM. Transepithelial electrical resistance (TER) measurement, immunostaining and Western blot analyses were performed.

resultsHT exhibited lower TER than control and LT monolayers. Immunofluorescence for TJ was weak and discontinuous along the cell contour, in LT and HT. Furthermore, claudin-1, occludin and ZO-1 expressions were decreased. In all groups, claudin-2 was localized at nuclei. We observed that ATRA improved TJ distribution and increased TJ expression in HT. This retinoid did not modify claudin-2 and -8 expressions. All-trans retinoic acid decreased TER in HT, but had no effect in LT.

conclusionsTight junctions were altered in HPMCs from dialyzed patients. The HT monolayer has lower TER than LT, which might be associated with the peritoneal permeability in these patients. ATRA might be a therapeutic alternative to maintain mesothelial integrity, since it improved TJ localization and expression.

Indexed as

Peritoneal DialysisAdultBiological TransportBiopsyBlotting, WesternCells, CulturedDialysis SolutionsEpithelial CellsFemaleGene Expression RegulationHumansMaleMiddle AgedPeritoneumPermeabilityTight JunctionsDialysis SolutionsTretinoinclaudinsContinuous ambulatory peritoneal dialysishigh transporterhuman peritoneal mesothelial cellslow transporteroccludinperitoneal permeabilityretinoic acid

Identifiers

PMID24584604
PMCPMC4443986
OpenAlexW2016099287

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.