Evidence map›Paper›PMID 42141398›Full record

ArticleBMC nephrology2026

Torque teno virus viral load and hospitalisation for infections in long-term kidney transplant recipients: a single-centre prospective cohort study.

Quan Yao Ho, Ian Tatt Liew, Deborah Chooi Mun Lai, Kun Lee Lim, Carolyn Shan-Yeu Tien, Rou Wei Lim, Wei Mian Ang, Xin Lin Joey Kay, Minyi Lau, Jenny Leong and 7 more

Abstract read
In one paragraph

Article in BMC nephrology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

17 authors.

Quan Yao HoDepartment of Renal Medicine, Singapore General Hospital, Outram Road, Singapore, 169608, Singapore. ho.quan.yao@duke-nus.edu.sg.ORCID 0000-0002-0884-7076
Ian Tatt LiewDepartment of Renal Medicine, Singapore General Hospital, Outram Road, Singapore, 169608, Singapore.ORCID 0000-0003-3777-706X
Deborah Chooi Mun LaiDepartment of Microbiology, Singapore General Hospital, Singapore, Singapore.ORCID 0009-0008-0063-6136
Kun Lee LimDepartment of Microbiology, Singapore General Hospital, Singapore, Singapore.ORCID 0009-0005-1221-4350
Carolyn Shan-Yeu TienDepartment of Renal Medicine, Singapore General Hospital, Outram Road, Singapore, 169608, Singapore.ORCID 0000-0002-6554-2703
Rou Wei LimSingHealth Duke-NUS Transplant Centre, Singapore, Singapore.ORCID 0000-0001-6243-0637
Wei Mian AngDepartment of Renal Medicine, Singapore General Hospital, Outram Road, Singapore, 169608, Singapore.
Xin Lin Joey KayDepartment of Renal Medicine, Singapore General Hospital, Outram Road, Singapore, 169608, Singapore.ORCID 0009-0001-4782-1266
Minyi LauDepartment of Microbiology, Singapore General Hospital, Singapore, Singapore.ORCID 0009-0003-0098-0352
Jenny LeongDepartment of Renal Medicine, Singapore General Hospital, Outram Road, Singapore, 169608, Singapore.
Yan Ting YeoSingHealth Duke-NUS Transplant Centre, Singapore, Singapore.ORCID 0000-0002-2829-6750
Chieh Suai TanDepartment of Renal Medicine, Singapore General Hospital, Outram Road, Singapore, 169608, Singapore.ORCID 0000-0002-8850-5585
Shimin Jasmine ChungSingHealth Duke-NUS Transplant Centre, Singapore, Singapore.ORCID 0000-0002-5174-7361
Puay Hoon LeeSingHealth Duke-NUS Transplant Centre, Singapore, Singapore.ORCID 0000-0003-2698-4944
Sobhana ThangarajuDepartment of Renal Medicine, Singapore General Hospital, Outram Road, Singapore, 169608, Singapore.ORCID 0000-0002-0758-1560
Lynette Lin Ean OonDepartment of Microbiology, Singapore General Hospital, Singapore, Singapore.ORCID 0000-0002-0721-1551
Terence KeeDepartment of Renal Medicine, Singapore General Hospital, Outram Road, Singapore, 169608, Singapore.ORCID 0000-0001-5250-855X

Funding

SingHealth Duke-NUS Academic Medicine Research Grant (AM/SU085/2023, SRDUKAMR2385)
6 · The paper itself

Abstract

backgroundTorque teno virus (TTV) viral loads may reflect patients' net state of immunosuppression and identify patients at risk of infections and rejection early after solid organ transplantation. However, its role in long-term kidney recipients (KTRs) is less clear.

methodsThis single-centre prospective cohort study evaluated the association between TTV viral load at recruitment and severe infections requiring hospitalisation within 12 months as the primary outcome in kidney recipients > 1-year post-transplant and on stable immunosuppression for > 3 months. Participants were followed up for 12 months, until change of immunosuppression, graft loss, or death. Pre-specified, exploratory secondary outcomes, including opportunistic infections, malignancy, composite outcomes were also analysed.

resultsMedian time after transplant amongst the 171 included participants was 10.3 years (interquartile range (IQR) 4.9-16.0). Thirty-one developed severe infections 105 days (IQR 65-204) after baseline TTV measurement. Higher baseline log10-transformed TTV viral load (logTTV) was associated with severe infections within 12 months (odds ratio (OR) 1.37, 95% confidence interval (CI) 1.01-1.86, p = 0.045) with a modest area under receiver operating characteristics curve of 0.60 (95% CI 0.50-0.71). Compared to logTTV < 4.6 copies/mL, logTTV > 6.6 copies/mL (hazard ratio (HR) 3.45, 95% CI 1.10-10.9, p = 0.04) was associated with time to hospitalisations for infections but not logTTV 4.6-6.6 copies/mL (HR 2.30, 95% CI 0.97-5.47, p = 0.06). The ORs for the association between logTTV and malignancy, opportunistic infection and biopsy-proven rejection were 1.86 (95% CI 1.09-3.16), 1.21 (95% CI 0.69-2.13) and 1.09 (95% CI 0.70-1.69) respectively.

conclusionElevated TTV viral loads were associated with severe infections amongst our cohort of long-term KTRs and may be a useful biomarker in this population.

Indexed as

DNA Virus InfectionsHospitalizationKidney TransplantationPostoperative ComplicationsTorque teno virusViral LoadAdultCohort StudiesFemaleHumansMaleMiddle AgedProspective StudiesBiomarkersImmunologic monitoringInfectionsKidney transplantationTorque teno virus

Identifiers

PMID42141398
PMCPMC13360527

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
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 Socratic graph.