This study investigated the association between the rs13306703 and rs8192288 variants of the superoxide dismutase 3 () gene and breast cancer (BC) in the Mexican population, conducting both genetic and in silico analyses. 357 healthy women and 386 BC patients were studied using TaqMan assays, qPCR, and RFLP-PCR. The genotype and a recessive pattern of these variants were risk factors for BC ( < 0.
View Article and Find Full Text PDFBackground: analysis provides a fast, simple, and cost-free method for identifying potentially pathogenic single nucleotide variants.
Objective: To propose a simple and relatively fast method for the prediction of variant pathogenicity using free online (IS) tools with gene as a model.
Materials And Methods: We aim to propose a methodology to predict variants with high pathogenic potential using computational analysis, using gene as model.
Epidemiological studies are essential in medicine and public health as they help identify risk factors and causes of diseases. Additionally, they are key to planning, implementing, and evaluating health interventions aimed at preventing and controlling the spread of diseases. Among these studies, analytical observational studies, such as cross-sectional, case-control, and cohort studies, are the most used.
View Article and Find Full Text PDFPancreatic cancer (PC) is highly lethal, with mutations in up to 95% of cases. miRNAs inversely correlate with expression, indicating potential as biomarkers. This study identified miRNAs targeting and their impact on PC characteristics using in silico methods.
View Article and Find Full Text PDFInt J Mol Sci
April 2024
Until a few years ago, it was believed that the gradual mosaic loss of the Y chromosome (mLOY) was a normal age-related process. However, it is now known that mLOY is associated with a wide variety of pathologies in men, such as cardiovascular diseases, neurodegenerative disorders, and many types of cancer. Nevertheless, the mechanisms that generate mLOY in men have not been studied so far.
View Article and Find Full Text PDFJ Egypt Natl Canc Inst
April 2024
Background: Colorectal cancer (CRC) ranks third in cancer incidence globally and is the second leading cause of cancer-related mortality. The nucleoside diphosphate kinase 1 (NME1) and netrin 1 receptor (DCC) genes have been associated with resistance against tumorigenesis and tumor metastasis. This study investigates the potential association between NME1 (rs34214448 G > T and rs2302254 C > T) and DCC (rs2229080 G > C and rs714 A > G) variants and susceptibility to colorectal cancer development.
View Article and Find Full Text PDFBiomedicines
March 2024
The aim of this study was to associate rs1966265 and rs351855 variants with colorectal cancer (CRC) in a Mexican population and to perform in silico analysis. Genomic DNA from 412 healthy individuals and 475 CRC patients was analyzed. In silico analysis was performed using the PolyPhen-V2, GEPIA, GTEx, and Cytoscape platforms.
View Article and Find Full Text PDFArch Iran Med
August 2023
Background: miRNAs are non-coding RNAs participating actively in the post-translational regulation of oncogenes, tumor suppressor, and DNA repair genes implicated in colorectal cancer (CRC). This study aims to examine the association of the variants (rs895819 A>G), (rs11614913 T>G) and (rs2910164 C>G) in Mexican CRC patients.
Methods: DNA samples from 183 patients and 186 healthy Mexican subjects were analyzed.
Systemic lupus erythematosus (SLE) is a multisystem disease considered a prototype of the main autoimmune disease and presents serious complications, such as lupus nephritis (LN), which generates a significant impact on morbidity and mortality. The gene encodes the osteopontin (OPN) protein, which plays a crucial role in the regulation of inflammation and immunity. The variants rs1126616 and rs9138 of this gene have been associated with the inflammatory response.
View Article and Find Full Text PDFInt J Mol Sci
October 2023
In Alzheimer's disease (AD), the age of onset (AoO) exhibits considerable variability, spanning from 40 to 90 years. Specifically, individuals diagnosed with AD and exhibiting symptoms prior to the age of 65 are typically classified as early onset (EOAD) cases. Notably, the apolipoprotein E (APOE) ε4 allele represents the most extensively studied genetic risk factor associated with AD.
View Article and Find Full Text PDFFetal development can be altered by DNA damage caused by maternal exposure to chemical, physical, or biological agents during gestation. One method of assessing genotoxicity is to detect micronuclei (MNs) and/or nuclear abnormalities. This can be performed in vivo and requires only frequently dividing tissues, such as amniotic tissue (AT), which is in contact with the fetal environment and is composed of very thin layers of cells.
View Article and Find Full Text PDFColorectal cancer (CRC) is a major global health challenge and one of the top 10 cancers in Mexico. Lifestyle and genetic factors influence CRC development, prognosis, and therapeutic response; identifying risk factors, such as the genes involved, is critical to understanding its behavior, mechanisms, and prognosis. The association between gene variants (rs8720 and rs12587) and CRC in the Mexican population was analyzed.
View Article and Find Full Text PDFPurpose: Association between variants rs1047972 and rs8173 of the gene in healthy women and breast cancer (BC) in a Mexican population.
Methods: Genomic DNA samples from 409 healthy women and 572 patients with BC were analyzed for variants rs1047972 and rs8173 of the gene by polymerase chain reaction-restriction fragment length polymorphism.
Results: TT genotype (odds ratio [OR], 2.
Cell Mol Biol (Noisy-le-grand)
June 2022
Colorectal cancer (CRC) is the third most common cancer in the world. Overall survival is related to clinical stage: more advanced stages show lower survival rates; therefore, they need to be monitored regularly with new, less invasive and more specific biomarkers. The concentration and integrity index of circulating cell-free DNA (ccfDNA) have been proposed as potential diagnostic and prognostic biomarkers for CRC, however, inconsistent results are still observed in different reports.
View Article and Find Full Text PDFIn recent years, the increase in antibiotic resistance demands searching for new compounds with antimicrobial activity. Phytochemicals found in plants offer an alternative to this problem. The genus Pelargonium contains several species; some have commercial use in traditional medicine such as , and others such as are little studied but have promising potential for various applications such as phytopharmaceuticals.
View Article and Find Full Text PDFBackground: Variants of the estrogen receptor b () gene have been associated with different types of cancer. However, these associations have been inconsistent. We genotyped the variants (rs1256049, rs4986938, and rs1256030) in breast cancer (BC) patients and in healthy women.
View Article and Find Full Text PDFTohoku J Exp Med
June 2022
Colorectal cancer (CRC) is the third most common cancer and the second leading cause of death worldwide. Down-regulation of the cysteine-rich reversion-inducing protein with Kazal motifs (RECK) has been confirmed in numerous human cancers and is clinically associated with metastasis. This study aims to explore, for the first time, the possible association of the RECK variants rs11788747 and rs10972727 with CRC susceptibility and clinicopathological features.
View Article and Find Full Text PDFMicronuclei (MN) are used to assess genotoxic exposure, whereas nuclear buds (NBs) have been linked to genotoxic events. was studied to identify MN and NBs. Three groups were formed: Group 1 (water) and groups 2 and 3 (7 or 10 mg/kg of cyclophosphamide).
View Article and Find Full Text PDFIran J Basic Med Sci
August 2021
Objectives: The mitogen-activated protein kinase kinase 4 () plays a key role in several processes like inflammation, apoptosis, and tumorigenesis. Several authors have proposed that genetic variations in these genes may alter their expression with subsequent cancer risk. This study aimed to examine the possible association of rs3826392 and rs3809728 variants in Mexican patients with colorectal cancer (CRC).
View Article and Find Full Text PDFBackground: A few studies of Human Papillomavirus (HPV) distribution and frequency have shown a real context of infection in men. The study aimed to know the HPV types distribution in men from Northwestern Mexico, in general, per age and year.
Methods: A total of 1,769 males were recruited from 5 years (2011-2015), from an HPV PCR testing laboratory service.
SKH1 hairless mice are widely used in carcinogenesis and dermatology research due to their bare skin, as exposure to different agents is facilitated. Minoxidil is a cosmetic drug that is recognized as a mitogenic agent, and mitogens are suggested to have carcinogenic and mutagenic potential by inducing cell division and increasing the possibility of perpetuating DNA damage. Therefore, we hypothesized that the application of high doses of minoxidil to the skin of hairless mice would increase the number of micronucleated erythrocytes (MNEs) in peripheral blood.
View Article and Find Full Text PDFPurpose: The rs712 polymorphism in a let-7 microRNA-binding KRAS gene has been associated with different types of cancer, however these associations have been inconsistent. The purpose of this study was to determine the association between rs712 polymorphism in a let-7 microRNA-binding KRAS gene comparing breast cancer (BC) patients with healthy subjects from Mexican population.
Methods: The genotyping of the rs712 polymorphism was performed by polymerase chain reaction (PCR) in 437 BC patients and 414 healthy women.
Colorectal cancer is the third cause of cancer and the second leading cause of death worldwide. The CD44 gene plays a key role in malignant processes, including growth, survival, epithelial to mesenchymal transition and metastasis. It is also known that some variants as rs187116 (c.
View Article and Find Full Text PDFPurpose: Interleukin 10 (IL-10) gene polymorphisms are associated with different types of cancer, but these associations are inconsistent. The purpose of this study was to determine the frequency and association of the rs1800872 IL-10 gene polymorphism in Mexican women with breast cancer (BC).
Methods: The rs1800872 polymorphism was genotyped in 368 BC patients and 320 control women using the polymerase chain reaction (PCR).
Purpose: The rs2234693 and rs9340799 ESR1 polymorphisms have shown contradictory results in studies of breast cancer (BC). The purpose of this study was to determine the frequency and association of ESR1 polymorphisms (rs2234693 and rs9340799) in BC patients of Mexican population.
Methods: PCR was used to genotype rs2234693 and rs9340799 polymorphisms in the ESR1 gene in Mexican healthy subjects and breast cancer (BC) patients.