Single-Nucleotide Polymorphisms: Associations, Molecular Functions, Applications and Progress (2nd Edition)

A special issue of Genes (ISSN 2073-4425). This special issue belongs to the section "Molecular Genetics and Genomics".

Deadline for manuscript submissions: closed (25 January 2025) | Viewed by 816

Special Issue Editor


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Guest Editor
Institute of Biochemistry and Molecular Biology, Department of Molecular Biology, Semmelweis University, P.O. Box 2, H-1428 Budapest, Hungary
Interests: PCR; real-time PCR; miRNA; electrophoresis; SNP; SNV; polymorphism; genetic variation; genetic association
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Special Issue Information

Dear Colleagues,

This Special Issue, entitled “Single-Nucleotide Polymorphisms: Associations, Molecular Functions, Applications and Progress (2nd Edition)”, is the second edition of the Special Issue “Single-Nucleotide Polymorphisms: Association, Molecular Function, Application, and Progress” (https://www.mdpi.com/journal/genes/special_issues/single_nucleotide_polymorphisms), which included 21 papers and was read by 38,244 authors.

Single-nucleotide variation: A tiny change in the 3 billion base-pair long sequence of the human genome. It alters less than 5 × 10–8% of a human’s genetic information, but the consequences can be fateful or inconsequential. Other potential issues are alterations in regulation, signal transduction, and enzyme activity. There are more than 1 billion entries related to Homo sapiens in the dbSNP database of the NCBI. The number of research questions is at least 10 times higher.

It has been less than two decades since the Human Genome Project was completed. During this time, incredible progress has been achieved in the investigation of DNA sequencing. Today, it is possible to determine the sequence of a whole genome in a couple of hours; on the other hand, it is challenging to understand the functions of the identified sequence variations. They are, however, of significant importance, as the SNPs can shed light on molecular dysfunctions related to diseases, offering the definition of novel, biologically relevant diagnostic categories, not to mention prevention and the elaboration of targeted therapeutical approaches.

Studies on the molecular functions, as well as clinical consequences, of SNPs (including positive and negative results) will be collected in the form of original research publications, as well as systematic review articles, in this Special Issue.

Dr. Zsolt Ronai
Guest Editor

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Keywords

  • SNP
  • point mutation
  • association study
  • monogenic disorder
  • complex traits/disorders
  • haplotype
  • molecular assays

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Published Papers (1 paper)

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Research

10 pages, 873 KiB  
Article
The Relationship Between Genetic Variants at Loci 9p21, 6q25.1, and 2q36.3 and the Development of Cardiac Allograft Vasculopathy in Heart Transplant Patients
by Dana Dlouha, Kristyna Janouskova, Jevgenija Vymetalova, Sarka Novakova, Sarka Chytilova, Marianna Lukasova and Jaroslav A. Hubacek
Genes 2025, 16(2), 236; https://doi.org/10.3390/genes16020236 - 19 Feb 2025
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Abstract
Background: Cardiac allograft vasculopathy (CAV) is an accelerated form of coronary artery disease (CAD) that is characterized by concentric fibrous intimal hyperplasia along the length of coronary vessels, and is recognized as long-term complication after heart transplantation. The chromosomal loci 9p21, 6q25.1, and [...] Read more.
Background: Cardiac allograft vasculopathy (CAV) is an accelerated form of coronary artery disease (CAD) that is characterized by concentric fibrous intimal hyperplasia along the length of coronary vessels, and is recognized as long-term complication after heart transplantation. The chromosomal loci 9p21, 6q25.1, and 2q36.3, represented by their respective leading variants rs10757274, rs6922269 and rs2943634, have been linked with a history of CAD by genome-wide association studies. We aimed to investigate the associations of genetic variants at the loci 9p21, 6q25.1, and 2q36.3 with CAV as genetic risk factors for early prediction. Methods: Genomic DNA was extracted from paired aortic samples of 727 heart recipients (average age 50.8 ± 12.2 years; 21.3% women) and corresponding donors (average age 39.7 ± 12.0 years; 26.1% women). The variants within the loci 9p21, 6q25.1, and 2q36.3 were genotyped using PCR-RFLP. Results: The recipients’ variants of 9p21 (OR 1.97; 95% CI, 1.21-3.19 for GG vs. +A comparison, p = 0.0056) and 2q36.3 (OR 2.46; 95% CI, 1.12–6.17 for +C vs. AA comparison, p = 0.0186) were associated with higher incidence of CAV during the first year following heart transplantation. No such association was found for donor genotypes. Conclusions: Our data suggest that variants at the locus 9p21 (rs10757274) and 2q36.3 (rs2943634) are associated with early CAV development. Full article
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