Evidence map›Paper›PMID 23909402›Full record

Trial reportRejuvenation research2013

Potential inhibitory effects of L-carnitine supplementation on tissue advanced glycation end products in patients with hemodialysis.

Kei Fukami, Sho-Ichi Yamagishi, Kazuko Sakai, Yusuke Kaida, Takeki Adachi, Ryotaro Ando, Seiya Okuda

Open access · greenAbstract readRandomized Controlled Trial
PubMed Full text at PMC Publisher
In one paragraph

Trial report in Rejuvenation research, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 5 pooled it
1.1field-weighted citation impact, top 26% 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, 5 syntheses or guidelines pooled it, 29 citations in OpenAlex.

  1. Pooled it
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  5. Effects of carnitine supplementation on liver aminotransferase enzymes: A systematic review and meta-analysis of randomized controlled clinical trials.Indian journal of gastroenterology : official journal of the Indian Society of Gastroenterology · 2019
    Pooled it
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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

7 authors at 1 institution in 1 country.

Kei Fukami1 Division of Nephrology, Department of Medicine, Kurume University School of Medicine , Kurume, Japan .
Sho-Ichi Yamagishi
Kazuko Sakai
Yusuke Kaida
Takeki Adachi
Ryotaro Ando
Seiya Okuda
Kurume University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

aimsAdvanced glycation end products (AGEs) contribute to cardiovascular disease in patients with hemodialysis (HD). We have recently found that carnitine levels are inversely associated with skin AGE levels in HD patients. We examined whether L-carnitine supplementation reduced skin AGE levels in HD patients with carnitine deficiency.

methodsThis was a single-center study. One hundred and two HD patients (total carnitine levels <50 μmol/L) were enrolled and randomized to either oral administration of L-carnitine (900 mg/day) (n=51) or control (n=51). After 6 months, metabolic and inflammatory variables, including serum levels of carnitine, were measured. Skin AGE levels were determined by evaluating skin auto-fluorescence with an AGE-reader.

resultsThere were no significant differences of clinical variables at baseline between the control and L-carnitine therapy group. Thirty-two patients did not complete the assessment or treatment of the study. Oral L-carnitine supplementation for 6 months significantly increased low-density lipoprotein cholesterol (LDL-C), triglycerides, total, free, and acyl carnitine levels, while it decreased alanine transaminase, acyl/free carnitine ratio, β₂-microglobulin, and skin AGE values. Change in total carnitine values from baseline (Δtotal carnitine) and Δfree carnitine were inversely associated with Δskin AGE levels in L-carnitine-treated patients (p=0.036 and p=0.016, respectively). In multiple regression analysis, Δfree carnitine was a sole independent determinant of Δskin AGEs (R²=0.178).

conclusionsThe present study demonstrated that oral L-carnitine supplementation significantly decreased skin AGE levels in HD patients with carnitine deficiency. These observations suggest that supplementation of L-carnitine might be a novel therapeutic strategy for preventing the accumulation of tissue AGEs in carnitine-deficient patients with HD.

Indexed as

Renal DialysisAdultAgedAged, 80 and overCarnitineDietary SupplementsFemaleGlycation End Products, AdvancedHumansMaleMiddle AgedProspective StudiesCarnitineGlycation End Products, Advanced

Identifiers

PMID23909402
PMCPMC3869449
OpenAlexW201347222

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.