Evidence map›Paper›PMID 19641481›Full record

ArticleKidney international2009

CYP-omega-hydroxylation-dependent metabolites of arachidonic acid inhibit the basolateral 10 pS chloride channel in the rat thick ascending limb.

Rui-Min Gu, Lei Yang, Yunhong Zhang, Lijun Wang, Shumin Kong, Chengbiao Zhang, Yuanyuan Zhai, Mingxiao Wang, Peng Wu, Liping Liu and 3 more

Open access · greenAbstract read
In one paragraph

Article in Kidney international, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.7field-weighted citation impact, top 17% 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

13 citing papers in PubMed, 25 citations in OpenAlex.

  1. Article
  2. Review
  3. Molecular characteristics and physiological roles of NaJournal of cellular physiology · 2021
    Review
  4. Review
  5. New perspective of ClC-Kb/2 Cl- channel physiology in the distal renal tubule.American journal of physiology. Renal physiology · 2016
    Review
  6. Review
  7. Article
  8. Thick ascending limb of the loop of Henle.Clinical journal of the American Society of Nephrology : CJASN · 2014
    Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. 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

13 authors at 2 institutions in 2 countries.

Rui-Min GuDepartment of Pharmacology, Harbin Medical University, China. ruimingu2916@yahoo.com.cn
Lei Yang
Yunhong Zhang
Lijun Wang
Shumin Kong
Chengbiao Zhang
Yuanyuan Zhai
Mingxiao Wang
Peng Wu
Liping Liu
Feng Gu
Jiye Zhang
Wen-Hui Wang
Harbin Medical University · CNNew York Medical College · US

Funding

Vasoregulatory Function of CYP2E1-Derived EicosanoidsP01HL034300 · NHLBI · NEW YORK MEDICAL COLLEGE · PI JIANG, HOULI · 1985 to 2015
$33.4M
NHLBI NIH HHS HL34300NHLBI NIH HHS P01 HL034300
6 · The paper itself

Abstract

Metabolites of arachidonic acid influence sodium chloride (NaCl) transport in the thick ascending limb. Because a 10 pS Cl channel is the major type of chloride channel in the basolateral membrane of this nephron segment, we explored the effect of arachidonic acid on this channel in cell-attached patches. Addition of 5 micromol arachidonic acid significantly decreased channel activity (a product of channel number and open probability) while linoleic acid had no effect. To determine if this was mediated by acachidonic acid per se or by its metabolites, we measured channel activity in the presence of the cyclooxygenase inhibitor indomethacin, the selective lipoxygenase inhibitor nordihydroguaiaretic acid, and the cytochrome P-450 (CYP)-omega-hydroxylation inhibitor 17-octadecynoic acid. Neither cyclooxygenase nor lipoxygenase inhibition had an effect on basal chloride channel activity; further they failed to abolish the inhibitory effect of arachidonate on the 10 pS channel. However, inhibition of CYP-omega-hydroxylation completely abolished the effect of arachidonic acid. The similarity of the effects of 20-hydroxyeicosatetraenoic acid (20-HETE) and arachidonic acid suggests that the effect of arachidonic acid was mediated by CYP-omega-hydroxylation-dependent metabolites. We conclude that arachidonic acid inhibits the 10 pS chloride channel in the basolateral membrane of the medullary thick ascending limb, an effect mediated by the CYP-omega-hydroxylation-dependent metabolite 20-HETE.

Indexed as

Ion Channel GatingAnimalsArachidonic AcidChloride ChannelsCytochrome P-450 Enzyme InhibitorsCytochrome P-450 Enzyme SystemEnzyme InhibitorsFatty Acids, UnsaturatedFemaleHydroxyeicosatetraenoic AcidsHydroxylationIndomethacinIn Vitro TechniquesLoop of HenleMaleMasoprocol17-octadecynoic acid20-hydroxy-5,8,11,14-eicosatetraenoic acidArachidonic AcidChloride ChannelsCytochrome P-450 Enzyme InhibitorsCytochrome P-450 Enzyme Systemcytochrome P-450 omega-hydroxylaseEnzyme InhibitorsFatty Acids, UnsaturatedHydroxyeicosatetraenoic AcidsIndomethacinMasoprocolSodium Chloride

Identifiers

PMID19641481
PMCPMC2861852
OpenAlexW1979817991

What OpenQuestion holds

Textmetadata
LicenceTDM
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.