Evidence map›Paper›PMID 40691241›Full record

ArticleScientific reports2025

Hematological and biochemical profiles, infection and habitat quality in an urban rat population.

Ticiana Carvalho-Pereira, Gabriel G Pedra, Daiana S de Oliveira, Fábio N Souza, Caio G Zeppelini, Luana R N Santos, Ricardo D Couto, Thiago C Bahiense, Eduardo M da Silva, Michael Begon and 4 more

Abstract read
In one paragraph

Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Review
  2. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

14 authors.

Ticiana Carvalho-PereiraInstitute of Biology, Federal University of Bahia, Salvador, BA, Brazil. carvalhopereira.tsa@hotmail.com.
Gabriel G PedraInstitute of Integrative Biology, University of Liverpool, Liverpool, UK.
Daiana S de OliveiraInstituto Gonçalo Moniz, Fundação Oswaldo Cruz, Ministério da Saúde, Salvador, BA, Brazil.
Fábio N SouzaInstitute of Biology, Federal University of Bahia, Salvador, BA, Brazil.
Caio G ZeppeliniInstitute of Collective Health, Federal University of Bahia, Salvador, BA, Brazil.
Luana R N SantosInstituto Gonçalo Moniz, Fundação Oswaldo Cruz, Ministério da Saúde, Salvador, BA, Brazil.
Ricardo D CoutoFaculty of Pharmacy, Federal University of Bahia, Salvador, BA, Brazil.
Thiago C BahienseInstitute of Health Sciences, Federal University of Bahia, Salvador, BA, Brazil.
Eduardo M da SilvaInstitute of Biology, Federal University of Bahia, Salvador, BA, Brazil.
Michael BegonInstitute of Integrative Biology, University of Liverpool, Liverpool, UK.
Mitermayer Galvão ReisInstituto Gonçalo Moniz, Fundação Oswaldo Cruz, Ministério da Saúde, Salvador, BA, Brazil.
Albert I KoInstituto Gonçalo Moniz, Fundação Oswaldo Cruz, Ministério da Saúde, Salvador, BA, Brazil.
James E ChildsDepartment of Epidemiology of Microbial Diseases, School of Public Health, Yale University, New Haven, CT, USA.
Federico CostaInstituto Gonçalo Moniz, Fundação Oswaldo Cruz, Ministério da Saúde, Salvador, BA, Brazil.

Funding

Research Mentoring and Building Capacity of underrepresented Minority Research Scientists in India.D43TW010540 · FIC · YALE UNIVERSITY · PI MICHELE BARRY, Eva Harris · 2017 to 2026
$15.5M
Global Health Fellows and Scholars Research TrainingR25TW009338 · FIC · UNIVERSITY OF CALIFORNIA BERKELEY · PI BARRY, MICHELE, KO, ALBERT ICKSANG · 2012 to 2016
$5.2M
Disease Determinants of Urban LeptospirosisU01AI088752 · NIAID · YALE UNIVERSITY · PI KO, ALBERT ICKSANG · 2010 to 2014
$3.6M
Natural History of Urban LeptospirosisR01AI052473 · NIAID · YALE UNIVERSITY · PI KO, ALBERT ICKSANG · 2003 to 2013
$2.8M
Ecoepidemiology of leptospirosis in the urban slums of BrazilR01TW009504 · FIC · YALE UNIVERSITY · PI BEGON, MICHAEL, CHILDS, JAMES EMORY · 2012 to 2016
$2.2M
Rodent Population Dynamics and Leptospirosis Infection in Urban Slum EnviornmentsF31AI114245 · NIAID · YALE UNIVERSITY · PI HACKER, KATHRYN PATRICIA · 2014 to 2015
$55k
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior 23038.000776/2017-54FIC NIH HHS D43 TW010540FIC NIH HHS R01 TW009504FIC NIH HHS R25 TW009338NIAID NIH HHS F31 AI114245NIAID NIH HHS R01 AI052473NIAID NIH HHS U01 AI088752Wellcome TrustWellcome Trust 102330/Z/13/Z
6 · The paper itself

Abstract

Host condition is key in understanding disease dynamics. In this study, we investigated the relationship between infection with Leptospira interrogans and helminths, and the hematological and hormone-biochemical stress-related profiles of urban Rattus norvegicus. Rat kidney imprints and urine were used to identify and quantify L. interrogans, while fecal samples were analyzed for helminth eggs and corticosterone metabolites. Blood samples were taken for complete blood counts and specific biochemicals in rats' sera. Principal Component Analyses were conducted to group rats according to health profiles. A total of 120 rats were captured, and hematological and hormone-biochemical data were obtained from 95 and 61 rats, respectively. Hematological PCA revealed distinct rat groups: typical (T), eosinophil-deficient (Eos-D), eosinophil- and monocyte-deficient (EM-D) and monocyte deficient with high immature neutrophils (Mon-D). No significant association was found between L. interrogans or helminth infections and health profiles, except for Trichiuridae helminths, which had significantly higher mean intensity in the pooled deficient groups compared to the T-group. The poorest condition group was found in areas with fewer rat burrows than the T-group, indicating EM-D had a reduced ability to occupy higher-quality habitats. These findings suggest that hematological profiles may reflect host's overall condition, instead of responses to specific infections.

Indexed as

EcosystemLeptospirosisAnimalsFecesMalePrincipal Component AnalysisRatsUrban PopulationHabitat qualityHelminth speciesHematological profileHormone-biochemical related stressHost conditionInfectionLeptospira interrogansRattus norvegicus

Identifiers

PMID40691241
PMCPMC12279998

What OpenQuestion holds

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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.