Evidence map›Paper›PMID 30861027›Full record

Trial reportPloS one2019

Circulating mitochondrial DNA: New indices of type 2 diabetes-related cognitive impairment in Mexican Americans.

Talisa Silzer, Robert Barber, Jie Sun, Gita Pathak, Leigh Johnson, Sid O'Bryant, Nicole Phillips

Open access · goldAbstract readClinical Trial
In one paragraph

Trial report in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 1 pooled it
2.9field-weighted citation impact, top 8% 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

38 citing papers in PubMed, 1 synthesis or guideline pooled it, 62 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Exploring the impacts of type 2 diabetes and metformin use on Parkinson's disease: Mendelian randomization analysis and a national cohort study.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026
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  11. Liquid Biopsy: A Game Changer for Type 2 Diabetes.International journal of molecular sciences · 2024
    Review
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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

7 authors at 1 institution in 1 country.

Talisa SilzerDepartment of Microbiology, Immunology, Genetics, University of North Texas Health Science Center, Fort Worth, Texas, United States of America.
Robert BarberDepartment of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas, United States of America.
Jie SunDepartment of Microbiology, Immunology, Genetics, University of North Texas Health Science Center, Fort Worth, Texas, United States of America.
Gita PathakDepartment of Microbiology, Immunology, Genetics, University of North Texas Health Science Center, Fort Worth, Texas, United States of America.
Leigh JohnsonDepartment of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas, United States of America.
Sid O'BryantDepartment of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas, United States of America.
Nicole PhillipsDepartment of Microbiology, Immunology, Genetics, University of North Texas Health Science Center, Fort Worth, Texas, United States of America.ORCID 0000-0002-9324-2687
University of North Texas · US

Funding

Health Disparities in Alzheimer's Disease and Mild Cognitive Impairment among Mexican AmericansR01AG054073 · NIA · UNIVERSITY OF NORTH TEXAS HLTH SCI CTR · PI O'BRYANT, SID E, TOGA, ARTHUR W · 2017 to 2021
$12.6M
NIA NIH HHS R01 AG054073
6 · The paper itself

Abstract

Mitochondrial function has been implicated and studied in numerous complex age-related diseases. Understanding the potential role of mitochondria in disease pathophysiology is of importance due to the rise in prevalence of complex age-related diseases, such as type 2 diabetes (T2D) and Alzheimer's disease (AD). These two diseases specifically share common pathophysiological characteristics which potentially point to a common root cause or factors for disease exacerbation. Studying the shared phenomena in Mexican Americans is of particular importance due to the disproportionate prevalence of both T2D and AD in this population. Here, we assessed the potential role of mitochondria in T2D and cognitive impairment (CI) in a Mexican American cohort by analyzing blood-based indices of mitochondrial DNA copy number (mtDNACN) and cell-free mitochondrial DNA (CFmtDNA). These mitochondrial metrics were also analyzed for correlation with relevant neuropsychological variables and physiological data collected as indicators of disease and/or disease progression. We found mtDNACN to be significantly decreased in individuals with CI, while CFmtDNA was significantly elevated in T2D; further, CFmtDNA elevation was significantly exacerbated in individuals with both diseases. MtDNACN was found to negatively correlate with age and fatty acid binding protein concentration, while positively correlating with CFmtDNA as well as CERAD total recall score. Candidate gene SNP-set analysis was performed on genes previously implicated in maintenance and control of mitochondrial dynamics to determine if nuclear variants may account for variability in mtDNACN. The results point to a single significant locus, in the LRRK2/MUC19 region, encoding leucine rich repeat kinase 2 and mucin 19. This locus has been previously implicated in Parkinson's disease, among others; rs7302859 was the driver SNP. These combined findings further indicate that mitochondrial dysfunction (as assessed by proxy via mtDNACN) is intimately linked to both T2D and CI phenotypes as well as aging.

Indexed as

Cell-Free Nucleic AcidsCognitive DysfunctionDiabetes Mellitus, Type 2DNA, MitochondrialMexican AmericansAgedAlzheimer DiseaseFemaleGenetic LociHumansLeucine-Rich Repeat Serine-Threonine Protein Kinase-2MaleMiddle AgedMucinsPolymorphism, Single NucleotideCell-Free Nucleic AcidsDNA, MitochondrialLeucine-Rich Repeat Serine-Threonine Protein Kinase-2LRRK2 protein, humanMUC19 protein, humanMucins

Identifiers

PMID30861027
PMCPMC6414026
OpenAlexW2920862727

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.