Background And Aims: The global obesity epidemic is growing worldwide and its further growth is expected in the future. In obesity, the formation of reactive oxygen species (ROS) and cytokines is normally observed, which damage the genetic material. The purpose of this study was to assess lymphocyte DNA damage before and after metformin use in obese individuals.
Novelty: The novelty of the article is that for the first time DNA damage in lymphocytes before and after the use of metformin in obese individuals among Kazakh population was studied.
Methods: Indirect immunofluorescence analysis using the AKLIDES apparatus was used for the quantitative determination of phosphorylated γ-H2AX (Ser 139) and 53BP1 in order to analyze DNA breaks in the lymphocytes.
Results: The data indicating premature cell aging in the visceral adipose tissue in obese individuals were obtained. An increased hypoxia was observed in combination with an increase in γ-H2AX foci. DNA damage monitoring may become an important part of clinical studies of obesity. Advanced methods to diagnose obesity with early detection of precancerous changes imply a personalized approach, which is ineffective without data from genomic studies.
Conclusion: This study showed that metformin at a dose of 850 mg/day for 3 months for the treatment of obesity (BMI more than 30 kg/m) resulted in a decrease in DNA breaks in the lymphocytes.
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http://dx.doi.org/10.1016/j.dsx.2022.102569 | DOI Listing |
JCO Precis Oncol
January 2025
Sarcoma Translational Research Group, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain.
Purpose: Less than 5% of GI stromal tumors (GISTs) are driven by the loss of the succinate dehydrogenase (SDH) complex, resulting in a pervasive DNA hypermethylation pattern that leads to unique clinical features. Advanced SDH-deficient GISTs are usually treated with the same therapies targeting KIT and PDGFRA receptors as those used in metastatic GIST. However, these treatments display less activity in the absence of alternative therapeutic options.
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View Article and Find Full Text PDFArch Toxicol
January 2025
Department of Medicine, University of California, San Diego, CA, 92093, USA.
E-cigarettes (E.cigs) cause inflammation and damage to human organs, including the lungs and heart. In the gut, E.
View Article and Find Full Text PDFBlood
December 2024
Sanquin, Amsterdam, Netherlands.
Alloimmunization during pregnancy occurs when a mother produces antibodies against fetal antigens, leading to complications like hemolytic disease of the fetus and newborn (HDFN) and fetal and neonatal alloimmune thrombocytopenia (FNAIT). HDFN involves destruction of fetal red blood cells, potentially causing severe anemia, hydrops fetalis, and fetal death. FNAIT affects fetal platelets and possibly endothelial cells, resulting in risk of intracranial hemorrhage and brain damage.
View Article and Find Full Text PDFChemMedChem
January 2025
IIT Roorkee: Indian Institute of Technology Roorkee, Chemistry, Department of Chemistry, 247667, Roorkee, INDIA.
The development of small molecule-based drugs emerged as a cornerstone of modern drug discovery. Structural activity relationship (SAR) studies in medicinal chemistry are crucial for lead optimization, where a subtle change in the substituent can significantly alter its binding affinity with the biological target. Herein, a highly efficient single-atom substitution (SAS) approach has been developed, where sulfur for oxygen strategy is utilized as a powerful molecular editing technique to identify N-vinyl Indole-thiobarbituric acid (6a) as a novel small molecule-based scaffold with tunable photophysical and antiproliferative activities.
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