Evidence map›Paper›PMID 15585672›Full record

ArticlePediatric research2005

Developmental changes in proximal tubule tight junction proteins.

Maha Haddad, Fangming Lin, Vangipuram Dwarakanath, Kimberly Cordes, Michel Baum

Open access · bronzeAbstract read
In one paragraph

Article in Pediatric research, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
0.8field-weighted citation impact, top 24% 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

8 citing papers in PubMed, 17 citations in OpenAlex.

  1. Tight junction structure, assembly and (dys)function.Nature reviews. Molecular cell biology · 2026
    Review
  2. Potassium regulation in the neonate.Pediatric nephrology (Berlin, Germany) · 2017
    Article
  3. Tight junctions of the proximal tubule and their channel proteins.Pflugers Archiv : European journal of physiology · 2017
    Review
  4. Review
  5. Age-related changes of claudin expression in mouse liver, kidney, and pancreas.The journals of gerontology. Series A, Biological sciences and medical sciences · 2009
    Article
  6. Expression of claudin-7 in benign kidney and kidney tumors.International journal of clinical and experimental pathology · 2008
    Article
  7. Claudins 6, 9, and 13 are developmentally expressed renal tight junction proteins.American journal of physiology. Renal physiology · 2006
    Article
  8. Maturation of rat proximal tubule chloride permeability.American journal of physiology. Regulatory, integrative and comparative physiology · 2005
    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

5 authors at 1 institution in 1 country.

Maha HaddadDepartment of Pediatrics, University of Texas Southwestern Medical Center at Dallas, TX 75235, USA.
Fangming Lin
Vangipuram Dwarakanath
Kimberly Cordes
Michel Baum
The University of Texas Southwestern Medical Center · US

Funding

Neonatal Proximal Tubule AcidificationR01DK041612 · NIDDK · UT SOUTHWESTERN MEDICAL CENTER · PI BAUM, MICHEL GERARD, MOE, ORSON W · 1991 to 2013
$2.7M
NIDDK NIH HHS DK-41612NIDDK NIH HHS R01 DK041612
6 · The paper itself

Abstract

We demonstrated previously that neonatal proximal tubules have a lower passive paracellular permeability to chloride ions and higher resistance than that of adult proximal tubules. In addition, administration of thyroid hormone to neonates, before the normal maturational increase in serum thyroid hormone levels, prematurely accelerates the developmental increase in chloride permeability to adult levels. To test the hypothesis that there is a maturational change in tight junction proteins and that thyroid hormone mediates these changes, we examined the two known tight junction proteins present in proximal tubules, occludin and claudin 2. Using immunoblot and immunohistochemistry, we demonstrated that claudin 2 has a 4-fold greater abundance in neonatal proximal tubules than in adult tubules. Occludin, however, has a 4-fold greater expression in adult tubules than in neonatal tubules. Administration of thyroid hormone to neonates did not affect claudin 2 expression, occludin expression, or the transepithelial resistance in rat proximal tubule cells in vitro. In conclusion, there are postnatal maturational changes in tight junction proteins. The factors that cause these maturational changes are unknown but unlikely to be due solely to the maturational increase in thyroid hormone.

Indexed as

Age FactorsAnimalsCells, CulturedClaudinsFemaleKidney Tubules, ProximalMembrane ProteinsOccludinPregnancyRatsRats, Sprague-DawleyThyroid HormonesTight JunctionsClaudinsCldn2 protein, ratMembrane ProteinsOccludinOcln protein, ratThyroid Hormones

Identifiers

PMID15585672
PMCPMC4096165
OpenAlexW1998432674

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.