Genes (Basel)
November 2024
Background/objectives: Colorectal cancer (CRC) is a multifactorial disease where the inflammatory state is crucial. This study analyzes the association of the IL-1RN (rs2234663) and IL-1β (rs1143627, rs16944) variants and IL-1β levels with CRC.
Methods: This study included 230 CRC patients and 256 controls.
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 PDFObjective: Vitiligo is a common systemic, idiopathic autoimmune disease. The aim of this study was to analyze the frequency of variants of the superoxide dismutase 1 (SOD1) gene (50 bp Ins/Del, rs4817415, rs2070424, rs1041740, rs17880135) and circulating plasma protein levels through in-silico analysis.
Patients And Methods: Blood samples were collected from adult patients of both sexes with a clinical diagnosis of vitiligo.
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 PDFBackground: Cytogenotoxic damage caused by the consumption of legal and illegal drugs in drug abusers has been demonstrated, primarily due to alterations in their antioxidant capacity, cellular repair mechanisms, and increased production of free radicals. Folic acid shows antioxidant activity by acting as a reducing agent, neutralizing present free radicals, and reducing genomic damage.
Methods: The intervention involved administering 15 mg of folic acid, divided into three doses per day, to a group of 44 drug abusers.
Objective: The aim of the study was to analyze the association between the superoxide dismutase 2 (SOD2) gene variants rs2758346, rs5746094, and rs2758331 and breast cancer (BC) in the Mexican population as well as to perform in silico assessments of the variants' potential impact.
Patients And Methods: We performed in silico analysis and analyzed 489 healthy women and 467 BC patients using TaqMan assays and Real-Time PCR.
Results: The TT genotype, the T allele of the rs2758346 variant, and the CC genotype of both rs5746094 and rs2758331 were identified as BC risk factors (p < 0.
Drug abuse is considered a global health problem with serious social impact. In recent decades, changes in drug consumption patterns have shown a clear rising trend in the use of multiple drugs. Although the buccal micronucleus cytome (BMCyt) assay has evaluated cytotoxicity in drug abuse, there has not been an approach that takes into account this pattern of multiple drug use.
View Article and Find Full Text PDFThe development of several vaccines against the SARS-CoV2 virus and their application in millions of people have shown efficacy and safety in the transfer of genes to muscle turning this tissue into a protein-producing factory. Established advanced liver fibrosis, is characterized by replacement of hepatic parenchyma by tissue scar, mostly collagen type I, with increased profibrogenic and proinflammatory molecules gene expression. Matrix metalloproteinase 8 (MMP-8) is an interstitial collagen-degrading proenzyme acting preferentially on collagen type I when activated.
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.
Objective: The aim of this investigation was to determine the frequency and association of the variants rs4817415, rs2070424, and rs1041740 of the SOD1 gene in healthy women and breast cancer (BC) patients.
Patients And Methods: Genomic DNA samples from 146 healthy women and 130 patients with BC were analyzed.
Results: GG genotype (OR 2.
Biomed Res Int
December 2022
have been extensively used in traditional medicine to treat multiple diseases, including cancers. This study evaluated the genotoxic potential and antigenotoxic activities of aqueous and ethanolic leaf extracts by employing an in vivo erythrocyte rodent micronucleus assay. Different doses (187.
View Article and Find Full Text PDFThe superoxide dismutase (SOD) is the principal antioxidant defense system in the body that is activated by a reactive oxygen species. Some variants of the SOD2 gene have been associated with cancer. The rs4880 variant was determined by PCR real-time and the rs5746136 variant by PCR-RFLP in healthy subjects and in breast cancer (BC) patients.
View Article and Find Full Text PDFObjective: Hunter syndrome, or mucopolysaccharidosis type II (MPS II), is caused by deficiency of the lysosomal enzyme iduronate-2-sulfatase (IDS), which is responsible for degrading heparan and dermatan sulfate. The IDS gene is located on chromosome Xq28; pathological variants in this gene mostly consist of missense mutations and small and larger deletions, which produce different phenotypes. However, there is only one record in our population concerning the molecular mechanism of this disease; a genotype-phenotype description is not available.
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 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 PDFObjective: Polymorphisms of the KRAS gene have been shown to be associated with cancer. However, their association with breast cancer (BC) has been inconsistent. The purpose of this study was to determine the frequency with which the rs61764370, rs9266, and rs140080026 polymorphisms of the KRAS gene are associated with BC in patients of the Mexican population.
View Article and Find Full Text PDFJ Clin Lab Anal
September 2021
Background: Rheumatoid arthritis (RA) and periodontitis (P) are chronic inflammatory diseases characterized by joint and radiographic bone loss, respectively. IL-23 and IL-17 have an essential role in the immunopathogenesis of RA, and P. IL-23 stimulates Th17 cells through which produces IL-17, IL-21, and RANKL.
View Article and Find Full Text PDFMutat Res Genet Toxicol Environ Mutagen
May 2021
The increased life expectancy of people living with HIV (PLWH) receiving antiretroviral treatment (ART) has transformed HIV infection into a chronic disease. However, patients may be at risk of accelerated aging and the accumulation of cellular damage, which may trigger the development of cancer. We evaluated genomic instability in HIV-positive individuals with different viral loads receiving antiretroviral treatment (ART) and in HIV ART-naïve individuals.
View Article and Find Full Text PDFBiomed Res Int
June 2021
Air pollution has become a serious public health problem globally. Recent studies support the harmful effect of air pollution on human health, in addition to scientific evidence that recognizes it as a human carcinogen. The buccal micronucleus cytome (BMC) assay is employed extensively to measure cytotoxic and genotoxic damage in a population exposed to environmental contamination.
View Article and Find Full Text PDFMost women with breast cancer can become pregnant and give birth while undergoing radiation therapy and breastfeeding is generally not contraindicated. The induction of long-lived reactive species in proteins, such as casein by X-ray radiation and DNA damage to unexposed organisms, has been shown when ingesting irradiated cheese. To determine whether exposing lactating rats to X-rays increases the number of micronucleated erythrocytes (MNEs) in peripheral blood of their unexposed or breastfeeding rat pups, 15 female Wistar rats were divided into three groups: Negative control; Experimental group exposed to X-rays, and group exposed to X-rays plus vitamin C.
View Article and Find Full Text PDFObjective: The rs1008562, rs2234671 and rs3138060 polymorphisms of the CXCR1 gene have been shown to be associated with many diseases, but in breast cancer (BC) their association has not been detected. The purpose of this study was to determine the frequency and association of the rs1008562, rs2234671 and rs3138060 polymorphisms of CXCR1 gene in BC patients in the Mexican population.
Patients And Methods: The CXCR1 polymorphisms were determined by Polymerase Chain Reaction (PCR) and real time-PCR in healthy Mexican subjects and BC patients.
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 PDF