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(1) Background: The interaction between single nucleotide variants (SNVs) associated with congenital heart diseases (CHDs) and their gene methylation status has not been well researched. The aim of the present study was to determine if there is a relationship between the methy lation status (MS) of genes and the allelic variants associated with CHDs. (2) Methods: Seven SNVs of the genes , , , and were selected from the literature. DNA extraction, genotyping, and a methylation analysis were performed on healthy subjects and subjects with CHDs. (3) Results: Twenty-two subjects with CHDs were selected as the case group (15 with ventricular septal defects (VSDs) and 7 with atrial septal defects (ASDs)), and 44 healthy subjects comprised the control group. The and genes were hypermethylated in the control group when compared to the case group. When analyzed separately, those with atrial septum defects exhibited greater methylation, except for the gene MTHFR where there were no differences. Only the alternate alleles of MTHFR showed a significantly different methylation status in those without cardiopathy. (4) Conclusions: The and genes were hypermethylated in the control group; however, only the alternate alleles of (rs1801133 and rs1801131) showed a significantly different methylation status.
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http://dx.doi.org/10.3390/genes13112115 | DOI Listing |
Appl Biochem Biotechnol
September 2025
Programa de Engenharia Química/COPPE, Universidade Federal do Rio de Janeiro, Cidade Universitária, 21941-972, Rio de Janeiro, Brazil.
Polymer particles, including synthetic polymers such as poly(methyl methacrylate) (PMMA) and poly(styrene-co-divinylbenzene) (P(S-co-DVB)) beads, have been widely used as enzymatic supports and drug carriers. In this sense, it is important to understand the stabilization or degradation of such polymer matrices under specific chemical and enzymatic media. For this reason, the present work aims to evaluate the current status and prospects of treatments of PMMA and P(S-co-DVB) particles intended for biotechnological and biomedical applications under basic, acidic, and enzymatic environments.
View Article and Find Full Text PDFMol Ther Nucleic Acids
September 2025
Department of Genetics and Biotechnology, College of Life Sciences, Kyung Hee University, Yongin-si, Gyeonggi-do 17104, Republic of Korea.
Epigenetic modulation enables precise gene regulation without altering DNA sequences. While histone acetylation has been widely utilized for gene activation, the therapeutic potential of histone methylation remains underexplored. In this study, we developed a new epigenetic activator by fusing the histone methyltransferase SETD7 to deactivated Cas9 (dCas9).
View Article and Find Full Text PDFFront Oral Health
August 2025
Department of Periodontology, Faculty of Dental Medicine, University of Belgrade, Belgrade, Serbia.
This study explores post-viral immune modulation in periodontal health using COVID-19 convalescence as a model. We hypothesized that post-COVID-19 recovery induces epigenetic alterations, measurable through salivary methyl-transferase-like 3 (METTL3) expression and clinical-periodontal parameters. The present research comprises results from two studies: the clinical study, which included a total of 83 systemically healthy adults stratified into four groups according to periodontal status and COVID-19 history, and the laboratory study on human parotid gland samples ( = 10).
View Article and Find Full Text PDFPoult Sci
August 2025
Optima Life Sciences Private Limited, Pune Maharashtra, 411009, India.
Antibiotic growth promoters (AGPs) are increasingly subject to global regulatory restrictions and consumer pressure, driving the poultry industry toward antibiotic-free production systems. This shift has accelerated the search for effective alternatives, including innovative microbial additives, organic acids, phytogenics, and other bioactive compounds capable of supporting digestive function and enhancing immune competence in poultry. The present study reported the isolation and characterization of a novel Bacillus velezensis strain, BV-OLS1101, possessing robust probiotic attributes and a distinctive capacity to produce a serine protease subtilisin.
View Article and Find Full Text PDFPurpose Recent studies show that glioblastoma (GBM) is more sensitive to Temozolomide (TMZ) in the morning. In cells, inhibiting O6-Methylguanine-DNA-Methyltransferase (MGMT) abolished time-dependent TMZ efficacy, suggesting that circadian regulation of this DNA repair enzyme underlies daily TMZ sensitivity. Here, we tested the hypotheses that MGMT-promoter methylation and protein abundance vary with time-of-day in GBM, resulting in daily rhythms in TMZ efficacy.
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