Evidence map›Paper›PMID 34652786›Full record

ArticleEuropean geriatric medicine2019

Borrelia burgdorferi as a risk factor for Alzheimer's dementia and mild cognitive impairment.

Alejandro Herrera-Landero, Luis Enrique Amaya-Sánchez, Carlos D Hyver de Las-Deses, Fortino Solórzano-Santos, María Guadalupe Gordillo-Pérez

Abstract read
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In one paragraph

Article in European geriatric medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 2 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

10 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Article
  4. mFrontiers in cell and developmental biology · 2024
    Review
  5. Review
  6. Friends and Foes in Alzheimer's Disease.Medical principles and practice : international journal of the Kuwait University, Health Science Centre · 2023
    Review
  7. Implications of Microorganisms in Alzheimer's Disease.Current issues in molecular biology · 2022
    Review
  8. Article
  9. Review
  10. Article
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

5 authors.

Alejandro Herrera-LanderoDepartamento de Geriatría, UMAE Hospital de Traumatología y Ortopedia "Lomas Verdes", Instituto Mexicano del Seguro Social, Naucalpan, Mexico, Mexico.ORCID http://orcid.org/0000-0001-5352-6688
Luis Enrique Amaya-SánchezDepartamento de Neurología, Hospital de Especialidades, UMAE, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City, Mexico.
Carlos D Hyver de Las-DesesFacultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico.
Fortino Solórzano-SantosUnidad de Investigación de Medicina Basada en Evidencia, Hospital Infantil de México, Secretaria de Salud, Mexico City, Mexico.
María Guadalupe Gordillo-PérezUnidad de Investigación Médica en Enfermedades Infecciosas y Parasitarias, Hospital de Pediatría, UMAE, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Cuauhtémoc 330 Doctores, CP 06720, Mexico City, Mexico. lugope2@yahoo.com.mx.ORCID http://orcid.org/0000-0002-5062-225X

Funding

Instituto Mexicano del Seguro Social FIS/IMSS Prot MD17/1688Universidad Nacional Autónoma de México Support Program for Graduate Studies 2017
6 · The paper itself

Abstract

objectiveTo determine the association of Borrelia burgdorferi infection with Alzheimer's disease or mild cognitive impairment (MCI) in older adults.

methodsCase-control study. Patients older than 60 years, both sexes, were included. Three groups were created: with probable Alzheimer's disease cases with NINCDS-ADRDA criteria, MCI cases in those not meeting NINCDS-ADRDA criteria for dementia, but who had an abnormal cognitive evaluation and independence in instrumental activities of daily living (IADL), cognitively healthy controls were diagnosed with normal cognitive evaluation and independence in IADL were identified in the community. Western blot IgG against B. burgdorferi in serum was done in all the participants. Non-conditional logistic regression was applied to estimate the association of Alzheimer's disease or MCI and seropositive to B. burgdorferi.

resultsThirty-eight patients with Alzheimer's disease, mean age of 75.6 ± 3.4 years, 69% were females, education 8.3 ± 4.8 years. 39 patients with MCI, mean age of 72.2 ± 6.8 years, 85% were females, education 11.2 ± 4.2 years. A total of 11/38 (29%) were positive to B. burgdorferi with Alzheimer's disease, 9/39 (23%) with MCI, and 11/108 (10%) of controls. In patients with Alzheimer's disease, an adjusted odds ratio (aOR) = 3.65 (95% CI 1.2-11.1) adjusted for education and a history of cerebrovascular disease (CVD) was estimated, and in patients with MCI an aOR = 3.2 (95% CI 1.1-9.1) for a history of diabetes mellitus and CVD was estimated.

conclusionsIn our study, there was an increased risk of Alzheimer's disease and MCI in seropositive IgG patients to B. burgdorferi.

Indexed as

AgedAlzheimer diseaseBorrelia burgdorferiLyme diseaseMild cognitive impairment

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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.