Evidence map›Paper›PMID 26674156›Full record

ArticleBBA clinical2015

Long-term warfarin therapy and biomarkers for osteoporosis and atherosclerosis.

Sayaka Namba, Minako Yamaoka-Tojo, Takehiro Hashikata, Yuki Ikeda, Lisa Kitasato, Takuya Hashimoto, Takao Shimohama, Taiki Tojo, Naonobu Takahira, Takashi Masuda and 1 more

Open access · hybridAbstract read
In one paragraph

Article in BBA clinical, 2015. 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
3.4field-weighted citation impact, top 9% 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, 42 citations in OpenAlex.

  1. Review
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  6. Osteocalcin association with vascular function in chronic kidney disease.Journal of clinical hypertension (Greenwich, Conn.) · 2022
    Article
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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

11 authors at 1 institution in 1 country.

Sayaka NambaKitasato University Graduate School of Medical Sciences, Sagamihara, Japan.
Minako Yamaoka-TojoKitasato University Graduate School of Medical Sciences, Sagamihara, Japan ; Department of Rehabilitation, Kitasato University School of Allied Health Sciences, Sagamihara, Japan.
Takehiro HashikataKitasato University Graduate School of Medical Sciences, Sagamihara, Japan.
Yuki IkedaKitasato University Graduate School of Medical Sciences, Sagamihara, Japan.
Lisa KitasatoKitasato University Graduate School of Medical Sciences, Sagamihara, Japan.
Takuya HashimotoDepartment of Cardiovascular Medicine, Kitasato University School of Medicine, Sagamihara, Japan.
Takao ShimohamaDepartment of Cardiovascular Medicine, Kitasato University School of Medicine, Sagamihara, Japan.
Taiki TojoKitasato University Graduate School of Medical Sciences, Sagamihara, Japan ; Department of Cardiovascular Medicine, Kitasato University School of Medicine, Sagamihara, Japan.
Naonobu TakahiraKitasato University Graduate School of Medical Sciences, Sagamihara, Japan ; Department of Rehabilitation, Kitasato University School of Allied Health Sciences, Sagamihara, Japan.
Takashi MasudaKitasato University Graduate School of Medical Sciences, Sagamihara, Japan ; Department of Rehabilitation, Kitasato University School of Allied Health Sciences, Sagamihara, Japan.
Junya AkoKitasato University Graduate School of Medical Sciences, Sagamihara, Japan ; Department of Cardiovascular Medicine, Kitasato University School of Medicine, Sagamihara, Japan.
Kitasato University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundStroke prevention by warfarin, a vitamin K antagonist, has been an integral part in the management of atrial fibrillation. Vitamin K-dependent matrix Gla protein (MGP) has been known as a potent inhibitor of arterial calcification and osteoporosis. Therefore, we hypothesized that warfarin therapy affects bone mineral metabolism, vascular calcification, and vascular endothelial dysfunction.

methodsWe studied 42 atrial fibrillation patients at high-risk for atherosclerosis having one or more coronary risk factors. Twenty-four patients had been treated with warfarin for at least 12 months (WF group), and 18 patients without warfarin (non-WF group). Bone alkaline phosphatase (BAP) and under carboxylated osteocalcin (ucOC) and receptor activator of nuclear factor-kappa B ligand (RANKL) were measured as bone metabolism markers. Reactive hyperemia-peripheral arterial tonometry (RH-PAT) index measured by Endo-PAT2000 was used as an indicator of vascular endothelial function.

resultsThere were no significant differences in patient background characteristics and other clinical indicators between the two groups. In WF group, the ucOC levels were significantly higher than those in the non-WF group (10.3 ± 0.8 vs. 3.4 ± 0.9 ng/mL; P < 0.01), similarly, the RANKL levels in the WF group were higher than those in the non-WF group (0.60 ± 0.06 vs. 0.37 ± 0.05 ng/mL; P = 0.007). Moreover, RH-PAT index was significantly lower in the WF group compared to those in the non-WF group (1.48 ± 0.11 vs. 1.88 ± 0.12; P = 0.017).

conclusionsLong-term warfarin therapy may be associated with bone mineral loss and vascular calcification in 60-80 year old hypertensive patients.

Indexed as

BAP, bone alkaline phosphataseBMD, bone mineral densityDXA, dual-energy X-ray absorptiometryGas-6, growth arrest specific protein 6MGP, matrix Gla proteinOC, osteocalcinOsteoporosisRANKLRANKL, receptor activator of nuclear factor-kappa B ligandRH-PAT indexRH-PAT, reactive hyperemia-peripheral arterial tonometryucOCucOC, under carboxylated osteocalcinVascular endothelial dysfunction

Identifiers

PMID26674156
PMCPMC4661704
OpenAlexW1193291088

What OpenQuestion holds

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LicenceCC BY-NC-ND
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.