Evidence map›Paper›PMID 18825300›Full record

ArticleOsteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA2009

High prevalence of vitamin K and D deficiency and decreased BMD in inflammatory bowel disease.

A Kuwabara, K Tanaka, N Tsugawa, H Nakase, H Tsuji, K Shide, M Kamao, T Chiba, N Inagaki, T Okano and 1 more

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Article in Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed, 1 pooled it
5.2field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

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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

54 citing papers in PubMed, 1 synthesis or guideline pooled it, 121 citations in OpenAlex.

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  12. Gut microbiota, nutrients, and depression.Frontiers in nutrition · 2025
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4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

11 authors at 4 institutions in 1 country.

A KuwabaraDepartment of Food and Nutrition, Kyoto Women's University, 35, Imakumano-kitahiyoshicho, Higashiyama, Kyoto 605-8501, Japan.
K Tanaka
N Tsugawa
H Nakase
H Tsuji
K Shide
M Kamao
T Chiba
N Inagaki
T Okano
S Kido
Kobe Pharmaceutical University · JPKyoto University · JPKyoto Women's University · JPKyoto University of Education · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

summaryVitamin K and D deficiency and decreased bone mineral density (BMD) were highly prevalent in patients with inflammatory bowel disease (IBD), especially Crohn's disease (CD). Dietary intakes of these vitamins, however, were above the Japanese adequate intakes in IBD patients, suggesting that malabsorption is the basis for hypovitaminosis K and D and decreased BMD.

introductionWe have studied the possible involvement of vitamin K and D deficiency in the pathogenesis of decreased BMD in IBD.

methodsSeventy patients with IBD were evaluated for their BMD; plasma levels of vitamin K; phylloquinone (PK), menaquinone-7 (MK-7), and 25OH-D; serum PTH, protein induced by vitamin K absence (PIVKA-II), and undercarboxylated osteocalcin (ucOC) levels; and their food intake.

resultsCompared with ulcerative colitis (UC) patients, CD patients had significantly lower plasma vitamin K and 25OH-D concentrations; significantly higher serum levels of PTH, PIVKA-II, and ucOC; and significantly lower BMD scores at almost all measurement sites. More IBD patients were vitamin K deficient in bone than in liver. Multiple regression analyses revealed that low plasma concentrations of vitamin K and 25OH-D were independent risk factors for low BMD and that they were associated with the patients' fat intake, but not with their intake of these vitamins.

conclusionIBD patients have high prevalence of decreased BMD and vitamin K and D deficiency probably caused by malabsorption of these vitamins.

Indexed as

AdultBone DensityColitis, UlcerativeCrohn DiseaseDietFemaleFractures, BoneHumansInflammatory Bowel DiseasesMalabsorption SyndromesMaleNutritional StatusPrevalenceRegression AnalysisRisk FactorsVitamin D Deficiency

Identifiers

PMID18825300
OpenAlexW1966383076

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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.