Evidence map›Paper›PMID 27848180›Full record

ArticleInternational journal of hematology2017

Iron overload patients with unknown etiology from national survey in Japan.

Katsuya Ikuta, Mayumi Hatayama, Lynda Addo, Yasumichi Toki, Katsunori Sasaki, Yasuaki Tatsumi, Ai Hattori, Ayako Kato, Koichi Kato, Hisao Hayashi and 10 more

Abstract read
PubMed Publisher
In one paragraph

Article in International journal of hematology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

9 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Ethnic Differences in Iron Status.Advances in nutrition (Bethesda, Md.) · 2021
    Review
  6. Article
  7. Article
  8. Review
  9. Review
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

20 authors.

Katsuya IkutaDivision of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1-1-1, Midorigaoka-Higashi, Asahikawa, Hokkaido, 078-8510, Japan. ikuta@asahikawa-med.ac.jp.
Mayumi HatayamaDivision of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1-1-1, Midorigaoka-Higashi, Asahikawa, Hokkaido, 078-8510, Japan.
Lynda AddoDivision of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1-1-1, Midorigaoka-Higashi, Asahikawa, Hokkaido, 078-8510, Japan.
Yasumichi TokiDivision of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1-1-1, Midorigaoka-Higashi, Asahikawa, Hokkaido, 078-8510, Japan.
Katsunori SasakiDepartment of Gastrointestinal Immunology and Regenerative Medicine, Asahikawa Medical University, 2-1-1-1, Midorigaoka-Higashi, Asahikawa, Hokkaido, 078-8510, Japan.
Yasuaki TatsumiLaboratory of Medicine, Aichi Gakuin University School of Pharmacy, Nagoya, Aichi, Japan.
Ai HattoriLaboratory of Medicine, Aichi Gakuin University School of Pharmacy, Nagoya, Aichi, Japan.
Ayako KatoLaboratory of Medicine, Aichi Gakuin University School of Pharmacy, Nagoya, Aichi, Japan.
Koichi KatoLaboratory of Medicine, Aichi Gakuin University School of Pharmacy, Nagoya, Aichi, Japan.
Hisao HayashiLaboratory of Medicine, Aichi Gakuin University School of Pharmacy, Nagoya, Aichi, Japan.
Takahiro SuzukiDivision of Hematology, Department of Medicine, Jichi Medical University, Shimotsuke, Tochigi, Japan.
Masayoshi KobuneDepartment of Medical Oncology and Hematology, Sapporo Medical University School of Medicine, Sapporo, Hokkaido, Japan.
Miyuki TsutsuiDivision of Hematology, Department of Medicine, Juntendo University School of Medicine, Tokyo, Japan.
Akihiko GotohDivision of Hematology, Department of Medicine, Juntendo University School of Medicine, Tokyo, Japan.
Yasuo AotaDepartment of Internal Medicine, Kohsei Chuo General Hospital, Tokyo, Japan.
Motoo MatsuuraDepartment of Nephrology, Metabology and Immunology, Sakai City Medical Center, Sakai, Osaka, Japan.
Yuzuru HamadaTazuke Kofukai Foundation, Medical Research Institute, Kitano Hospital, Osaka, Japan.
Takahiro TokudaDepartment of Cardiovascular Medicine, Saiseikai Yokohama City Eastern Hospital, Yokohama, Kanagawa, Japan.
Norio KomatsuDivision of Hematology, Department of Medicine, Juntendo University School of Medicine, Tokyo, Japan.
Yutaka KohgoDivision of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1-1-1, Midorigaoka-Higashi, Asahikawa, Hokkaido, 078-8510, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Transfusion is believed to be the main cause of iron overload in Japan. A nationwide survey on post-transfusional iron overload subsequently led to the establishment of guidelines for iron chelation therapy in this country. To date, however, detailed clinical information on the entire iron overload population in Japan has not been fully investigated. In the present study, we obtained and studied detailed clinical information on the iron overload patient population in Japan. Of 1109 iron overload cases, 93.1% were considered to have occurred post-transfusion. There were, however, 76 cases of iron overload of unknown origin, which suggest that many clinicians in Japan may encounter some difficulty in correctly diagnosing and treating iron overload. Further clinical data were obtained for 32 cases of iron overload of unknown origin; median of serum ferritin was 1860.5 ng/mL. As occurs in post-transfusional iron overload, liver dysfunction was found to be as high as 95.7% when serum ferritin levels exceeded 1000 ng/mL in these patients. Gene mutation analysis of the iron metabolism-related genes in 27 cases of iron overload with unknown etiology revealed mutations in the gene coding hemojuvelin, transferrin receptor 2, and ferroportin; this indicates that although rare, hereditary hemochromatosis does occur in Japan.

Indexed as

AdolescentAdultAgedAged, 80 and overFemaleFerritinsHemochromatosisHumansIronIron OverloadJapanLiver DiseasesMaleMetabolic Networks and PathwaysMiddle AgedMutationFerritinsIronHemochromatosisHereditary hemochromatosisIron overloadPost-transfusional iron overload

Identifiers

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.