Evidence map›Paper›PMID 30962740›Full record

ArticleYonago acta medica2019

A Randomized Placebo-controlled Trial of an Oral Preparation of High Molecular Weight Fucoidan in Patients with Type 2 Diabetes with Evaluation of Taste Sensitivity.

Chieko Sakai, Sunao Abe, Minoru Kouzuki, Hisashi Shimohiro, Yoshie Ota, Hironori Sakinada, Tatsuo Takeuchi, Tsuyoshi Okura, Takeshi Kasagi, Keiichi Hanaki

Open access · diamondAbstract read
In one paragraph

Article in Yonago acta medica, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 6 pooled it
5.8field-weighted citation impact, top 4% 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

19 citing papers in PubMed, 6 syntheses or guidelines pooled it, 44 citations in OpenAlex.

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  3. Edible Algae Reduce Blood Pressure in Humans: A Systematic Review and Meta-Analysis of Randomised Controlled Trials.Journal of human nutrition and dietetics : the official journal of the British Dietetic Association · 2025
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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

10 authors at 2 institutions in 1 country.

Chieko SakaiDepartment of Adult and Elderly Nursing, School of Health Sciences, Tottori University Faculty of Medicine, Yonago 683-8503, Japan.
Sunao Abe†Marine Products Kimuraya Co., Ltd., Sakaiminato 684-0072, Japan.
Minoru Kouzuki‡Department of Biological Regulation, School of Health Sciences, Tottori University Faculty of Medicine, Yonago 683-8503, Japan.
Hisashi Shimohiro§Department of Pathobiological Science and Technology, School of Health Sciences, Tottori University Faculty of Medicine, Yonago 683-8503, Japan.
Yoshie Ota||Clinical Laboratory Department, Hakuai Hospital, Yonago 683-0853, Japan.
Hironori Sakinada||Clinical Laboratory Department, Hakuai Hospital, Yonago 683-0853, Japan.
Tatsuo Takeuchi¶Department of Endocrinology and Metabolism, Hakuai Hospital, Yonago 683-0853, Japan.
Tsuyoshi Okura*Division of Molecular Medicine and Therapeutics, Tottori University Faculty of Medicine, Yonago 683-8503, Japan.
Takeshi Kasagi†Marine Products Kimuraya Co., Ltd., Sakaiminato 684-0072, Japan.
Keiichi Hanaki††Department of Women's and Children's Family Nursing, School of Health Sciences, Tottori University Faculty of Medicine, Yonago 683-8503, Japan.
Tottori University · JPSendai Shakai Hoken Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundFucoidan is derived from seaweed widely used in Japanese cuisine, but little is known about its influence on glucose metabolism. To obtain information about the physiological effects of fucoidan on glucose metabolism, the digestive system, and the gustatory system controlling taste sensation in patients with type 2 diabetes, we conducted a randomized, double-blind, placebo-controlled study.

methodsThirty patients with type 2 diabetes on diet therapy were recruited from an outpatient clinic (22 men and 8 women aged 59.10 ± 13.24 years, body mass index: 25.18 ± 3.88, hemoglobin A1c: 7.04 ± 1.24%). They were divided into 2 groups and underwent 2 interventions with a 4-week interval. One group received fucoidan for 12 weeks (a daily 60 mL test beverage containing 1,620 mg of fucoidan) and then placebo (60 mL) for the subsequent 12-week period, while the order was reversed in the other group. Evaluation was performed just before and after each intervention. Taste sensitivity was measured for 5 basic tastes by the filter paper disk method and food intake was evaluated with a validated diet questionnaire.

resultsNo adverse events occurred during the study period. Despite no change of the diet, stool frequency increased during fucoidan intake (from 7.78 ± 4.64/week in Week 1 to 9.15 ± 5.03/week in Week 5,

conclusionSustained fucoidan intake led to alterations of gastrointestinal function, including increased stool frequency and enhanced taste sensitivity, which could contribute to better control of diabetes.

Indexed as

dietary fiberfucoidanglucagon-like peptide1taste sensitivitytype 2 diabetes mellitus

Identifiers

PMID30962740
PMCPMC6437402
OpenAlexW2923028096

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.