Evidence map›Paper›PMID 31182010›Full record

ArticleEnvironmental health and preventive medicine2019

Association between human T cell leukemia virus 1 (HTLV-1) infection and advanced periodontitis in relation to hematopoietic activity among elderly participants: a cross-sectional study.

Yuji Shimizu, Hirotomo Yamanashi, Masayasu Kitamura, Reiko Furugen, Takahiro Iwasaki, Hideki Fukuda, Hideaki Hayashida, Koji Kawasaki, Kairi Kiyoura, Shin-Ya Kawashiri and 3 more

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In one paragraph

Article in Environmental health and preventive medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.3field-weighted citation impact, top 41% 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

7 citing papers in PubMed, 7 citations in OpenAlex.

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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

13 authors at 4 institutions in 1 country.

Yuji ShimizuDepartment of Community Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki-shi, Sakamoto 1-12-4, Nagasaki, 852-8523, Japan. shimizu@osaka-ganjun.jp.ORCID http://orcid.org/0000-0002-3381-9288
Hirotomo YamanashiDepartment of General Medicine, Nagasaki University Hospital, Nagasaki, Japan.
Masayasu KitamuraDepartment of Oral Health, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
Reiko FurugenDepartment of Oral Health, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
Takahiro IwasakiDepartment of Community Oral Health, School of Dentistry, Asahi University, Gifu, Japan.
Hideki FukudaDepartment of Oral Health, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
Hideaki HayashidaDepartment of Oral Health, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
Koji KawasakiCommunity Medical Network Center, Nagasaki University Hospital, Nagasaki, Japan.
Kairi KiyouraDepartment of Community Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki-shi, Sakamoto 1-12-4, Nagasaki, 852-8523, Japan.
Shin-Ya KawashiriDepartment of Community Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki-shi, Sakamoto 1-12-4, Nagasaki, 852-8523, Japan.
Toshiyuki SaitoDepartment of Oral Health, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
Atsushi KawakamiDepartment of Immunology and Rheumatology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
Takahiro MaedaDepartment of Community Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki-shi, Sakamoto 1-12-4, Nagasaki, 852-8523, Japan.
Nagasaki University · JPNagasaki University Hospital · JPAsahi University · JPOsaka International Cancer Institute · JP

Funding

the Japan Society for the Promotion of Science 17H03740the Japan Society for the Promotion of Science 18K06448
6 · The paper itself

Abstract

backgroundWe reported that human T cell leukemia virus 1 (HTLV-1) infection is positively associated with atherosclerosis. Recent evidence has revealed a close association of periodontitis with atherosclerosis, endothelial dysfunction, and disruption of the microcirculation. However, the association between HTLV-1 and advanced periodontitis has not been investigated to date. Since hematopoietic activity is closely linked to endothelial maintenance activity and is known to decline with age, we hypothesized that the state of hematopoietic activity influenced the association between HTLV-1 and advanced periodontitis in elderly participants.

methodsA cross-sectional study was performed including 822 elderly participants aged 60-99 years who participated in a dental health check-up. Advanced periodontitis was defined as a periodontal pocket ≥ 6.0 mm. Participants were classified as having low or high hematopoietic activity according to the median values of reticulocytes.

resultsHTLV-1 infection was positively related to advanced periodontitis among participants with lower hematopoietic activity (lower reticulocyte count), but not among participants with higher hematopoietic activity (higher reticulocyte count). The adjusted odds ratio (95% confidence interval) considering potential confounding factors was 1.92 (1.05-3.49) for participants with a lower reticulocyte count and 0.69 (0.35-1.36) for participants with a higher reticulocyte count.

conclusionsAmong elderly participants, the association between HTLV-1 infection and advanced periodontitis is influenced by hematopoietic activity. Since hematopoietic activity is associated with endothelial maintenance, these findings provide an efficient tool for clarifying the underlying mechanism of the progression of periodontitis among elderly participants.

Indexed as

AgedAged, 80 and overCross-Sectional StudiesFemaleHematopoiesisHTLV-I InfectionsHumansHuman T-lymphotropic virus 1JapanMaleMiddle AgedOdds RatioPeriodontitisPrevalenceRisk FactorsElderly participantsHematopoietic activityHTLV-1PeriodontitisReticulocyte

Identifiers

PMID31182010
PMCPMC6558682
OpenAlexW2949298432

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.