Evidence map›Paper›PMID 19254962›Full record

ArticleGlycobiology2009

Dietary glucosamine under question.

Jeremiah E Silbert

Open access · bronzeAbstract read
In one paragraph

Article in Glycobiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

6 citing papers in PubMed, 19 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Dietary supplements as disease-modifying treatments in osteoarthritis: a critical appraisal.P & T : a peer-reviewed journal for formulary management · 2014
    Article
  6. 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

1 author at 1 institution in 1 country.

Jeremiah E SilbertVeterans Affairs Medical Center, Bedford, MA, USA. jesilbert@aol.com
Veterans Health Administration · US

Funding

ZIDOVUDINE &LAMIVUDINE ALONE OR IN COMBINATION ON BODY COMPOSITIONM01RR000054 · NCRR · TUFTS MEDICAL CENTER · PI WANKE, CHRISTINE A · 1985 to 2005
$12.2M
NCRR NIH HHS MO1-RR00054
6 · The paper itself

Abstract

Annual sales of glucosamine as a neutraceutical for affecting cartilage in treatment of osteoarthritis are close to a billion dollars, but recent clinical studies have currently raised severe criticism regarding its functional value. Additional doubts can be raised by the knowledge of the well-defined cellular steps in glucosamine formation and production of glycosaminoglycans such as chondroitin. Glucosamine is produced in an activated state from glucose by essentially all cells for incorporation into glycosaminoglycans and glycoproteins, and there have been no reports of any deficiencies in its production under any conditions. Nevertheless, many investigations of glucosamine, using cells or tissues, have claimed effects on cartilage and chondroitin sulfate. The significance of these studies is questionable since they have invariably been with concentrations that were 10- to 1000-fold higher than has been found in human serum or plasma after glucosamine ingestion. Experiments with cells or tissues using glucosamine in the low concentrations found after ingestion need to be examined before any conclusions are drawn concerning its direct action on cartilage and its potential for modifying osteoarthritis.

Indexed as

AnimalsCartilageChondrocytesDietary CarbohydratesGlucosamineHumansOsteoarthritisDietary CarbohydratesGlucosamine

Identifiers

PMID19254962
PMCPMC2722415
OpenAlexW2121913689

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.