1
|
Bucci P, Barbaglia Y, Tedeschi F, Zalazar F. Helicobacter pylori infection: A balance between bacteria and host. Rev Argent Microbiol 2023; 55:60-67. [PMID: 35773060 DOI: 10.1016/j.ram.2022.04.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 01/14/2022] [Accepted: 04/07/2022] [Indexed: 12/12/2022] Open
Abstract
In Argentina, despite the important studies conducted on the prevalence of infection and the antibiotic resistance of Helicobacter pylori, there are no reports simultaneously analyzing a profile of virulence factors of the bacterium and polymorphisms in cytokine genes in patients with different alterations in the gastric mucosa (including intestinal metaplasia, IM). Our aim was to evaluate H. pylori genotypes in 132 adult patients with chronic gastritis presenting three different histological findings (inactive chronic gastritis, active chronic gastritis IM- and active chronic gastritis IM+) along with SNP-174 G>C in the IL-6 gene. cagA, vacA and babA2 genes were analyzed by multiplex PCR. The -174 G>C SNP IL-6 gene was analyzed by PCR-RFLP. Patients with active chronic gastritis IM+ showed the highest proportion of the cagA(+)/IL-6GG, cagA(+)/vacAm1s1/IL-6GG and cagA(+)/vacAm1s1/babA2(+)/IL-6GG combinations (p<0.05). There was 4-5 times greater probability of finding patients presenting the GG genotype for SNP-174 G>C IL-6, which in turn were infected with the most virulent H. pylori genotypes -cagA(+), cagA(+)/vacAm1s1 and cagA(+)/vacAm1s1/babA2- in the ACGIM+ group in comparison to the ICG group. Our results provide regional data to the idea that the transition towards severe alterations in the gastric mucosa would be the result of a balance between specific factors of H. pylori and inherent host factors. This fact can be useful to identify patients at greater risk and to select those individuals requiring appropriate eradication treatment to prevent progression to gastric cancer.
Collapse
Affiliation(s)
- Pamela Bucci
- Laboratorio de Práctica Profesional de Bioquímica, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Subsuelo Hospital "Dr. José María Cullen", Avda. Freyre 2150, (S3000EOZ) Santa Fe, Argentina
| | - Yanina Barbaglia
- Servicio de Gastroenterologia, Subsuelo Hospital "Dr. José María Cullen", Avda. Freyre 2150 (S3000EOZ) Santa Fe, Argentina
| | - Fabián Tedeschi
- Laboratorio de Práctica Profesional de Bioquímica, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Subsuelo Hospital "Dr. José María Cullen", Avda. Freyre 2150, (S3000EOZ) Santa Fe, Argentina
| | - Fabián Zalazar
- Laboratorio de Práctica Profesional de Bioquímica, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Subsuelo Hospital "Dr. José María Cullen", Avda. Freyre 2150, (S3000EOZ) Santa Fe, Argentina.
| |
Collapse
|
2
|
Fernández-Mestre M, Padrón-Lowe D, Salazar-Alcalá E, Blanco-Pérez F. Role of HLA-DQB1 alleles in the risk, signs and symptoms, and severity of celiac disease in a Venezuelan population. Rev Gastroenterol Mex (Engl Ed) 2022:S2255-534X(22)00021-4. [PMID: 35523683 DOI: 10.1016/j.rgmxen.2022.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 06/09/2021] [Indexed: 11/20/2022] Open
Abstract
INTRODUCTION AND AIMS Celiac disease (CD) is a complex condition, whose main genetic determinant involves HLA molecules, specifically the HLA-DQ2 and/or HLA-DQ8 heterodimers. Nevertheless, the frequency of the alleles encoding those molecules has not been reported in Venezuelan celiac patients. Therefore, the aim of our study was to evaluate the frequency of the HLA-DQB1 alleles in individuals with symptoms suggestive of CD and define the diagnostic markers of the condition in a Venezuelan population. MATERIAL AND METHODS A cross-sectional study included 516 individuals with symptoms suggestive of CD. Molecular typing of the HLA-DQB1 locus was performed using a polymerase chain reaction-sequence-specific oligonucleotide procedure (PCR-SSO). RESULTS A total of 58.3% of the individuals with clinical manifestations consistent with CD presented with at least one risk allele (DQB1*0201 and/or DQB1*0302), and the diagnosis was confirmed in 40 of them. The patients with CD had a higher frequency of the DQB1*0201 risk allele (26.25%), followed by the DQB1*0302 (17.5%) allele. There was an association between the presence of risk alleles and the presence of lesions characteristic of CD (P = 0.001), and a correlation was found between the genetic predisposition to develop CD and the presence of anti-tissue transglutaminase antibodies (P = 0.0127). CONCLUSIONS The results support the role of the DQB1*02 and DQB1*0302 alleles in CD susceptibility and the histologic alterations of the intestinal mucosa, in a Venezuelan population.
Collapse
|
3
|
Pons-Rodriguez A, Marzo-Castillejo M, Cruz-Esteve I, Galindo-Ortego G, Hernández-Leal MJ, Rué M. [Moving toward personalized breast cancer screening: The role of Primary Care]. Aten Primaria 2022; 54:102288. [PMID: 35477080 PMCID: PMC9061619 DOI: 10.1016/j.aprim.2022.102288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 01/11/2022] [Indexed: 11/02/2022] Open
Abstract
Breast cancer is the leading cause of death in the world among women. The Spanish National Health System (SNHS) introduced population-based breast cancer screening in 2006. As in most European programs, risk is identified on the basis of age and a mammogram is offered every two years to women aged 50-69 years. Scientific evidence is moving toward personalized screening, based on individual risk. This article presents the clinical trials that will evaluate the efficacy of personalized screening and some studies carried out in our environment on the effect of informing women of the benefits and adverse effects of screening or the acceptability and feasibility of offering personalized screening, in the Shared Decision Making context. The Preventive Activities and Health Promotion Program can help transform screening in our SNHS.
Collapse
Affiliation(s)
| | - Mercè Marzo-Castillejo
- Unitat de Suport a la Recerca Metropolitana Sud, IDIAP Jordi Gol, Direcció d'Atenció Primària Costa de Ponent, Institut Català de la Salut, Barcelona, España
| | | | | | - Maria José Hernández-Leal
- Departament d'Economia, Universitat Rovira i Virgili, Reus, España; Centre de Recerca en Economia i Sostenibilitat (ECO-SOS), Tarragona, España; Grup de Recerca en Anàlisi Estadística i Econòmica en Salut (GRAEES), Lleida y Reus, España
| | - Montserrat Rué
- Grup de Recerca en Anàlisi Estadística i Econòmica en Salut (GRAEES), Lleida y Reus, España; Departament de Ciències Mèdiques Bàsiques, Universitat de Lleida - Institut de Recerca Biomèdica de Lleida (IRB Lleida), Lleida, España.
| |
Collapse
|
4
|
Cruz-Sanabria F, Bonilla-Vargas K, Estrada K, Mancera O, Vega E, Guerrero E, Ortega-Rojas J, Mahecha María F, Romero A, Montañés P, Celeita V, Arboleda H, Pardo R. Analysis of cognitive performance and polymorphisms of SORL1, PVRL2, CR1, TOMM40, APOE, PICALM, GWAS_14q, CLU, and BIN1 in patients with mild cognitive impairment and cognitively healthy controls. Neurologia (Engl Ed) 2021; 36:681-691. [PMID: 34752346 DOI: 10.1016/j.nrleng.2018.07.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2018] [Accepted: 07/28/2018] [Indexed: 11/30/2022] Open
Abstract
INTRODUCTION Alzheimer disease risk polymorphisms have been studied in patients with dementia, but have not yet been explored in mild cognitive impairment (MCI) in our population; nor have they been addressed in relation to cognitive variables, which can be predictive biomarkers of disease. OBJECTIVE To evaluate cognitive performance and presence of polymorphisms of the genes SORL1(rs11218304), PVRL2(rs6859), CR1(rs6656401), TOMM40(rs2075650), APOE (isoforms ε2, ε3, ε4), PICALM(rs3851179), GWAS_14q(rs11622883), BIN1(rs744373), and CLU(rs227959 and rs11136000) in patients with MCI and healthy individuals. METHODOLOGY We performed a cross-sectional, exploratory, descriptive study of a prospective cohort of participants selected by non-probabilistic sampling, evaluated with neurological, neuropsychological, and genetic testing, and classified as cognitively healthy individuals and patients with MCI. Cognition was evaluated with the Neuronorma battery and analysed in relation to the polymorphic variants by means of measures of central tendency, confidence intervals, and nonparametric statistics. RESULTS We found differences in performance in language and memory tasks between carriers and non-carriers of BIN1, CLU, and CR1 variants and a trend towards poor cognitive performance for PICALM, GWAS_14q, SORL1, and PVRL2 variants; the APOE and TOMM40 variants were not associated with poor cognitive performance. DISCUSSION Differences in cognitive performance associated with these polymorphic variants may suggest that the mechanisms regulating these genes could have an effect on cognition in the absence of dementia; however, this study was exploratory and hypotheses based on these results must be explored in larger samples.
Collapse
Affiliation(s)
- F Cruz-Sanabria
- Grupo de Neurociencias, Universidad Nacional de Colombia, Bogotá, Colombia; Departamento de Psicología, Universidad Nacional de Colombia, Bogotá, Colombia; PhD Program in Clinical and Translational Science, Department of Translational Research and of New Surgical and Medical Technologies, University of Pisa, Italy.
| | - K Bonilla-Vargas
- Grupo de Neurociencias, Universidad Nacional de Colombia, Bogotá, Colombia; Departamento de Psicología, Universidad Nacional de Colombia, Bogotá, Colombia; Unidad de Neurología, Hospital Universitario Nacional, Bogotá, Colombia
| | - K Estrada
- Grupo de Neurociencias, Universidad Nacional de Colombia, Bogotá, Colombia; Instituto de Investigaciones Clínicas, Universidad Nacional de Colombia, Bogotá, Colombia
| | - O Mancera
- Grupo de Neurociencias, Universidad Nacional de Colombia, Bogotá, Colombia; Unidad de Neurología, Hospital Universitario Nacional, Bogotá, Colombia
| | - E Vega
- Grupo de Neurociencias, Universidad Nacional de Colombia, Bogotá, Colombia
| | - E Guerrero
- Grupo de Neurociencias, Universidad Nacional de Colombia, Bogotá, Colombia
| | - J Ortega-Rojas
- Grupo de Neurociencias, Universidad Nacional de Colombia, Bogotá, Colombia
| | - F Mahecha María
- Grupo de Neurociencias, Universidad Nacional de Colombia, Bogotá, Colombia
| | - A Romero
- Grupo de Neurociencias, Universidad Nacional de Colombia, Bogotá, Colombia; Departamento de Psicología, Universidad Nacional de Colombia, Bogotá, Colombia
| | - P Montañés
- Grupo de Neurociencias, Universidad Nacional de Colombia, Bogotá, Colombia; Departamento de Psicología, Universidad Nacional de Colombia, Bogotá, Colombia
| | - V Celeita
- Departamento de Psicología, Universidad Nacional de Colombia, Bogotá, Colombia
| | - H Arboleda
- Grupo de Neurociencias, Universidad Nacional de Colombia, Bogotá, Colombia
| | - R Pardo
- Grupo de Neurociencias, Universidad Nacional de Colombia, Bogotá, Colombia; Unidad de Neurología, Hospital Universitario Nacional, Bogotá, Colombia; Instituto de Investigaciones Clínicas, Universidad Nacional de Colombia, Bogotá, Colombia
| |
Collapse
|
5
|
Rebolledo-Cobos M, Yáñez-Torregroza Z. Susceptibilidad genética frente al cáncer bucal por infección del virus del papiloma humano. GAC MED MEX 2019; 155:284-290. [PMID: 31219470 DOI: 10.24875/gmm.18004408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Environmental carcinogens and human papillomavirus (HPV) are the main responsible factors for oral cancer. Susceptibility factors in the human genome play a risk-modulating role; however not all individuals exposed to these carcinogens suffer from cancer. The purpose of the present review is to describe the main factors of genetic susceptibility to oral cancer due to HPV infection. A systematic search was carried out in three databases in English, with only 7 articles meeting the selection criteria. Genetic polymorphisms are shown in three categories, which are related to HPV and participate in oncogenesis. Three articles related to deregulation of cell cycle control mechanisms were identified, as well as one referring to mutations in the apoptosis pathway and three about polymorphisms in inflammatory and immune response genes. The association of polymorphisms for the development of oral cancer by HPV is evident, although it remains under study. Oral neoplasms' oncogenesis pattern is not always associated with HPV, but with other environmental or epigenetic factors.
Collapse
Affiliation(s)
| | - Zuleima Yáñez-Torregroza
- Universidad Simón Bolívar, Facultad de Medicina, Ciencias Básicas y Biomédicas, Atlántico, Colombia
| |
Collapse
|
6
|
Cruz-Sanabria F, Bonilla-Vargas K, Estrada K, Mancera O, Vega E, Guerrero E, Ortega-Rojas J, Mahecha María F, Romero A, Montañés P, Celeita V, Arboleda H, Pardo R. Analysis of cognitive performance and polymorphisms of SORL1, PVRL2, CR1, TOMM40, APOE, PICALM, GWAS_14q, CLU, and BIN1 in patients with mild cognitive impairment and cognitively healthy controls. Neurologia 2018; 36:S0213-4853(18)30198-1. [PMID: 30503753 DOI: 10.1016/j.nrl.2018.07.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2018] [Revised: 05/07/2018] [Accepted: 07/28/2018] [Indexed: 11/25/2022] Open
Abstract
INTRODUCTION Alzheimer disease risk polymorphisms have been studied in patients with dementia, but have not yet been explored in mild cognitive impairment (MCI) in our population; nor have they been addressed in relation to cognitive variables, which can be predictive biomarkers of disease. OBJECTIVE To evaluate cognitive performance and presence of polymorphisms of the genes SORL1(rs11218304), PVRL2(rs6859), CR1(rs6656401), TOMM40(rs2075650), APOE (isoforms ɛ2, ɛ3, ɛ4), PICALM(rs3851179), GWAS_14q(rs11622883), BIN1(rs744373), and CLU (rs227959 and rs11136000) in patients with MCI and healthy individuals. METHODOLOGY We performed a cross-sectional, exploratory, descriptive study of a prospective cohort of participants selected by non-probabilistic sampling, evaluated with neurological, neuropsychological, and genetic testing, and classified as cognitively healthy individuals and patients with MCI. Cognition was evaluated with the Neuronorma battery and analysed in relation to the polymorphic variants by means of measures of central tendency, confidence intervals, and nonparametric statistics. RESULTS We found differences in performance in language and memory tasks between carriers and non-carriers of BIN1, CLU, and CR1 variants and a trend toward poor cognitive performance for PICALM, GWAS_14q, SORL1, and PVRL2 variants; the APOE and TOMM40 variants were not associated with poor cognitive performance. DISCUSSION Differences in cognitive performance associated with these polymorphic variants may suggest that the mechanisms regulating these genes could have an effect on cognition in the absence of dementia; however, this study was exploratory and hypotheses based on these results must be explored in larger samples.
Collapse
Affiliation(s)
- F Cruz-Sanabria
- Grupo de Neurociencias, Universidad Nacional de Colombia, Bogotá, Colombia; Departamento de Psicología, Universidad Nacional de Colombia, Bogotá, Colombia.
| | - K Bonilla-Vargas
- Grupo de Neurociencias, Universidad Nacional de Colombia, Bogotá, Colombia; Departamento de Psicología, Universidad Nacional de Colombia, Bogotá, Colombia; Unidad de Neurología, Hospital Universitario Nacional, Bogotá, Colombia
| | - K Estrada
- Grupo de Neurociencias, Universidad Nacional de Colombia, Bogotá, Colombia; Instituto de Investigaciones Clínicas, Universidad Nacional de Colombia, Bogotá, Colombia
| | - O Mancera
- Grupo de Neurociencias, Universidad Nacional de Colombia, Bogotá, Colombia; Unidad de Neurología, Hospital Universitario Nacional, Bogotá, Colombia
| | - E Vega
- Grupo de Neurociencias, Universidad Nacional de Colombia, Bogotá, Colombia
| | - E Guerrero
- Grupo de Neurociencias, Universidad Nacional de Colombia, Bogotá, Colombia
| | - J Ortega-Rojas
- Grupo de Neurociencias, Universidad Nacional de Colombia, Bogotá, Colombia
| | - F Mahecha María
- Grupo de Neurociencias, Universidad Nacional de Colombia, Bogotá, Colombia
| | - A Romero
- Grupo de Neurociencias, Universidad Nacional de Colombia, Bogotá, Colombia; Departamento de Psicología, Universidad Nacional de Colombia, Bogotá, Colombia
| | - P Montañés
- Grupo de Neurociencias, Universidad Nacional de Colombia, Bogotá, Colombia; Departamento de Psicología, Universidad Nacional de Colombia, Bogotá, Colombia
| | - V Celeita
- Departamento de Psicología, Universidad Nacional de Colombia, Bogotá, Colombia
| | - H Arboleda
- Grupo de Neurociencias, Universidad Nacional de Colombia, Bogotá, Colombia
| | - R Pardo
- Grupo de Neurociencias, Universidad Nacional de Colombia, Bogotá, Colombia; Unidad de Neurología, Hospital Universitario Nacional, Bogotá, Colombia; Instituto de Investigaciones Clínicas, Universidad Nacional de Colombia, Bogotá, Colombia
| |
Collapse
|
7
|
Rodrigues KF, Pietrani NT, Carvalho LML, Bosco AA, Sandrim VC, Ferreira CN, Gomes KB. Haptoglobin levels are influenced by Hp1-Hp2 polymorphism, obesity, inflammation, and hypertension in type 2 diabetes mellitus. ACTA ACUST UNITED AC 2018; 66:99-107. [PMID: 30528492 DOI: 10.1016/j.endinu.2018.07.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 07/13/2018] [Accepted: 07/23/2018] [Indexed: 01/08/2023]
Abstract
BACKGROUND Type 2 diabetes mellitus (T2DM) is an inflammatory condition associated to obesity and increased oxidative stress. Haptoglobin (Hp) is an acute phase reactant that scavenges extracorpuscular hemoglobin from circulation and prevents heme-iron oxidative damage. OBJECTIVE To assess the association between Hp levels and Hp1-Hp2 gene polymorphism and clinical and laboratory parameters in patients with T2DM. METHODS The study sample consisted of 102 T2DM patients and 62 controls. Hp plasma levels were measured using an ELISA assay, and Hp genotyping was performed using a specific two-step allelic polymerase chain reaction. RESULTS Hp levels were higher in T2DM patients as compared to controls (p=0.005). T2DM patients with high blood pressure had higher Hp levels than patients without this comorbidity (p=0.021). Obese T2DM patients had higher Hp levels as compared to obese controls (p=0.009) and to non-obese T2DM patients (p=0.003). The Hp1-Hp1 genotype was showed to be associated to T2DM according to additive (OR=3.038, 95% CI 1.127-8.192; p=0.036) and dominant model (OR=0.320, 95% CI 0.118-0.839; p=0.010), but Hp2 allele carriers contributed with higher Hp levels in T2DM as compared to controls. Waist circumference (p=0.002), BMI (p=0.001), and IL-6 (p=0.012), and hs-CRP (p=0.001) levels positively correlated with Hp levels in the T2DM group. CONCLUSION These results suggest that Hp levels are influenced by Hp1-Hp2 polymorphism, obesity, inflammatory status, and high blood pressure in T2DM.
Collapse
Affiliation(s)
- Kathryna Fontana Rodrigues
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Nathalia Teixeira Pietrani
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Laura Machado Lara Carvalho
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Adriana Aparecida Bosco
- Instituto de Ensino e Pesquisa, Santa Casa de Belo Horizonte, Belo Horizonte, Minas Gerais, Brazil
| | - Valéria Cristina Sandrim
- Instituto de Biociências, Universidade Estadual Paulista Júlio de Mesquita Filho, Botucatu, São Paulo, Brazil
| | | | - Karina Braga Gomes
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil; Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.
| |
Collapse
|
8
|
Sousa AC, Reis RPD, Pereira A, Borges S, Gouveia S, Spínola A, Freitas AI, Guerra G, Góis T, Rodrigues M, Henriques E, Ornelas I, Freitas C, Pereira D, Brehm A, Mendonça MI. The genetic variant C825T of the beta 3 subunit of G protein is associated with hypertension in a Portuguese population. Rev Port Cardiol 2018; 37:499-507. [PMID: 29853161 DOI: 10.1016/j.repc.2017.09.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 07/19/2017] [Accepted: 09/24/2017] [Indexed: 11/25/2022] Open
Abstract
INTRODUCTION Hypertension is an important public health problem, affecting about 25% of the adult population worldwide.1 Genetic and environmental factors contribute to its pathogenesis. The T allele of the C825T polymorphism of the beta 3 subunit of G protein (rs5443) leads to the production of a truncated variant that enhances intracellular signaling and may interfere with the regulation of blood pressure. This genetic variant has been described as a risk factor for hypertension, although study results are controversial. OBJECTIVE The objective of this study was to analyze the association of the C825T polymorphism of the GNB3 gene with the occurrence of hypertension in a Portuguese population from the Madeira archipelago. METHODS A case-control study was performed with 1641 Caucasian individuals (mean age 50.6±8.1 years), 848 with hypertension and 793 controls. Blood was collected from all participants for biochemical and genetic analysis, including genotyping of the C825T polymorphism. Logistic regression analysis was performed to determine which variables were significantly associated with the onset of hypertension. Statistical analyses were performed using IBM SPSS version 19.0 and p-values <0.05 were considered statistically significant. RESULTS In our study, there was a significant association between the C825T polymorphism of the GNB3 gene and the occurrence of hypertension (odds ratio 1.275; 95% confidence interval 1.042-1.559; p=0.018) in the dominant model, after multivariate analysis. CONCLUSION We conclude that the C825T polymorphism of the beta 3 subunit of G protein is significantly and independently associated with the occurrence of hypertension in the study population.
Collapse
Affiliation(s)
- Ana Célia Sousa
- Unidade de Investigação, Hospital Doutor Nélio Mendonça, Funchal, Portugal.
| | | | - Andreia Pereira
- Unidade de Investigação, Hospital Doutor Nélio Mendonça, Funchal, Portugal
| | - Sofia Borges
- Unidade de Investigação, Hospital Doutor Nélio Mendonça, Funchal, Portugal
| | - Sara Gouveia
- Unidade de Investigação, Hospital Doutor Nélio Mendonça, Funchal, Portugal
| | - Adelaide Spínola
- Unidade de Investigação, Hospital Doutor Nélio Mendonça, Funchal, Portugal
| | - Ana Isabel Freitas
- Unidade de Investigação, Hospital Doutor Nélio Mendonça, Funchal, Portugal; Laboratório de Genética Humana, Universidade da Madeira, Funchal, Portugal
| | - Graça Guerra
- Unidade de Investigação, Hospital Doutor Nélio Mendonça, Funchal, Portugal; Laboratório de Genética Humana, Universidade da Madeira, Funchal, Portugal
| | - Teresa Góis
- Unidade de Investigação, Hospital Doutor Nélio Mendonça, Funchal, Portugal
| | - Mariana Rodrigues
- Unidade de Investigação, Hospital Doutor Nélio Mendonça, Funchal, Portugal
| | - Eva Henriques
- Unidade de Investigação, Hospital Doutor Nélio Mendonça, Funchal, Portugal
| | - Ilídio Ornelas
- Unidade de Investigação, Hospital Doutor Nélio Mendonça, Funchal, Portugal
| | - Carolina Freitas
- Unidade de Investigação, Hospital Doutor Nélio Mendonça, Funchal, Portugal
| | - Décio Pereira
- Unidade de Investigação, Hospital Doutor Nélio Mendonça, Funchal, Portugal
| | - António Brehm
- Laboratório de Genética Humana, Universidade da Madeira, Funchal, Portugal
| | | |
Collapse
|
9
|
García-González I, López-Díaz RI, Canché-Pech JR, Solís-Cárdenas ADJ, Flores-Ocampo JA, Mendoza-Alcocer R, Herrera-Sánchez LF, Jiménez-Rico MA, Ceballos-López AA, López-Novelo ME. Epistasis analysis of metabolic genes polymorphisms associated with ischemic heart disease in Yucatan. Clin Investig Arterioscler 2018; 30:102-111. [PMID: 29395491 DOI: 10.1016/j.arteri.2017.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Revised: 11/27/2017] [Accepted: 11/29/2017] [Indexed: 06/07/2023]
Abstract
OBJECTIVE Epistasis is a type of genetic interaction that could explain much of the phenotypic variability of complex diseases. In this work, the effect of epistasis of metabolic genes and cardiovascular risk on the susceptibility to the development of ischemic heart disease in Yucatan was determined. METHODS Case-control study in 79 Yucatecan patients with ischemic heart disease and 101 healthy controls matched by age and origin with cases. The polymorphisms -108CT, Q192R, L55M (paraoxonase 1; PON1), C677T, A1298C (methylenetetrahydrofolate reductase; MTHFR), and the presence/absence of the glutathione S-transferase T1 (GSTT1) gene were genotyped. Epistasis analysis was performed using the multifactorial dimensional reduction method. The best risk prediction model was selected based on precision (%), statistical significance (P<0.05), and cross-validation consistency. RESULTS We found an independent association of the null genotype GSTT1*0/0 (OR=3.39, CI: 1.29-8.87, P=0.017) and the null allele (OR=1.86, CI: 1.19-2.91, P=0.007) with ischemic heart disease. The GSTT1*0 deletion and the 677TT genotype (MTHFR) were identified as being at a high cardiovascular risk, whereas the GSTT1*1 wild type genotype and the CC677 variant were at low risk. The gene-environment interaction identified the GSTT1 gene, C677T polymorphism (MTHFR), and hypertension as the factors that best explain ischemic heart disease in the study population. CONCLUSIONS The interaction of the MTHFR, GSTT1 and hypertension may constitute a predictive model of risk for early onset ischemic heart disease in the population of Yucatan.
Collapse
Affiliation(s)
- Igrid García-González
- Departamento de Biología Molecular, Laboratorios Biomédicos de Mérida, Mérida, Yucatán, México.
| | - Roger Iván López-Díaz
- Departamento de Biología Molecular, Laboratorios Biomédicos de Mérida, Mérida, Yucatán, México
| | - José Reyes Canché-Pech
- Departamento de Biología Molecular, Laboratorios Biomédicos de Mérida, Mérida, Yucatán, México
| | | | | | | | | | | | | | - María E López-Novelo
- Departamento de Biología Molecular, Laboratorios Biomédicos de Mérida, Mérida, Yucatán, México
| |
Collapse
|
10
|
García Gil S, Ramos Díaz R, Nazco Casariego GJ, Llanos Muñoz M, Viña Romero MM, Martín Calero B, Pérez Pérez JA, Gutiérrez Nicolás F. Effect of UGT, SLCO, ABCB and ABCC polymorphisms on irinotecan toxicity. Med Clin (Barc) 2018; 151:425-30. [PMID: 29499902 DOI: 10.1016/j.medcli.2018.01.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 01/15/2018] [Accepted: 01/18/2018] [Indexed: 02/03/2023]
Abstract
BACKGROUND AND OBJECTIVES Evaluate the relationship between the presence of polymorphisms in genes involved in the pharmacodynamics of irinotecan (UGT1A, SLCO1B1, ABCB1 and ABCC2) and the safety of irinotecan in the treatment of metastatic colorectal cancer (mCRC). PATIENTS AND METHODS Prospective observational, single-centre study of 30 months duration, which included patients diagnosed with mCRC treated with FOLFIRI was carried out. Toxicity was evaluated in each treatment cycle according to the Common Terminology Criteria for Adverse Events (CTCAE) v.4.0 NCI. Genomic DNA was obtained with a peripheral blood sample from an extraction method based on alkaline lysis. Genetic characterisation was performed using the LigthCycler®480 platform and allele-specific HybProbe® fluorescent probes. Analysed polymorphisms were: UGT1A1*28, UGT1A1*60, UGT1A7*1,*2,*3,*4, UGT1A7*12, UGT1A9*22, SLCO1B1 (rs11045879), ABCC2 (rs717620) and ABCB1 (rs1045642). RESULTS Thirty-four patients were included (73.5% were male, mean age 59.9 years [27-81]) in the study. Polymorphisms rs8175347, rs17868323, rs3832043, rs11692021 and rs7577677 were associated with a higher incidence of adverse effects. Furthermore, it was observed that those patients with wild-type in UGT family genes analysed have lower rates of toxicity associated with irinotecan treatment than those with certain mutated allele (P=.010). CONCLUSIONS These results suggest that the presence of certain polymorphisms in the UGT1A family of genes is related to the development of toxicity during treatment with irinotecan.
Collapse
|
11
|
Álvarez-Avellón SM, Fernández-Somoano A, Navarrete-Muñoz EM, Vioque J, Tardón A. Effect of alcohol and its metabolites in lung cancer: CAPUA study. Med Clin (Barc) 2017; 148:531-538. [PMID: 28236470 DOI: 10.1016/j.medcli.2016.12.033] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Revised: 12/05/2016] [Accepted: 12/14/2016] [Indexed: 11/16/2022]
Abstract
BACKGROUND AND OBJECTIVE Alcohol and its metabolites play an important role in carcinogenesis. This effect could be modulated by polymorphisms in genes encoding enzymes involved in the metabolism of alcohol and folate. Therefore, we analyzed the effect of alcohol consumption and ADH1B Arg48His, ADH1B Arg370Cys, ADH1C Ile349Val, ALDH2 Glu540Lys, CYP2E1 RsaI, CYP2E1 DraI, CYP2E1 TaqI and MTHFR C677T polymorphisms on the risk of developing lung cancer. PATIENTS AND METHODS We included 876 lung cancer cases and 840 controls of the CAPUA hospital-based case-control study. Genotyping was performed using the Sequenom MassArray (iPLEX GOLD) technology. RESULTS An alcohol consumption of 0.1-9.9g/day decreased lung cancer risk (ORadjusted=0.71; 95% CI 0.48-1.05), although statistical significance was not achieved. A consumption≥30g/day of alcohol and≥36PY of tobacco increases lung cancer risk (ORadjusted=26.68; 95% CI 12.69-56.10). On the other hand, a high consumption of vegetables (≥116.65g/day) and fruits (≥233.13g/day) decreases lung cancer risk with an alcohol consumption of 0.1-9.9g/day (ORadjusted=0.52; 95% CI 0.30-0.89; ORadjusted=0.58; 95% CI 0.33-1.03, respectively). An alcohol consumption of 10-29.9g/day in ADH1B 48His allele-carriers increases lung cancer risk (ORadjusted=3.32; 95% CI 1.03-10.70). CONCLUSIONS Alcohol and polymorphisms in genes involved in the metabolism of alcohol and folate are related to the onset of lung cancer.
Collapse
Affiliation(s)
- Sara M Álvarez-Avellón
- Unidad de Epidemiología Molecular del Cáncer, Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Departamento de Medicina, Universidad de Oviedo, Oviedo, Asturias, España; Consorcio de Investigación Biomédica Español en Red de Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, Madrid, España
| | - Ana Fernández-Somoano
- Unidad de Epidemiología Molecular del Cáncer, Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Departamento de Medicina, Universidad de Oviedo, Oviedo, Asturias, España; Consorcio de Investigación Biomédica Español en Red de Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, Madrid, España.
| | - Eva M Navarrete-Muñoz
- Consorcio de Investigación Biomédica Español en Red de Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, Madrid, España; Departamento de Salud Pública, Universidad Miguel Hernández, San Juan de Alicante, Alicante, España
| | - Jesús Vioque
- Consorcio de Investigación Biomédica Español en Red de Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, Madrid, España; Departamento de Salud Pública, Universidad Miguel Hernández, San Juan de Alicante, Alicante, España
| | - Adonina Tardón
- Unidad de Epidemiología Molecular del Cáncer, Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Departamento de Medicina, Universidad de Oviedo, Oviedo, Asturias, España; Consorcio de Investigación Biomédica Español en Red de Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, Madrid, España
| |
Collapse
|
12
|
Ortega-Rojas J, Arboleda-Bustos CE, Morales L, Benítez BA, Beltrán D, Izquierdo Á, Arboleda H, Vásquez R. [Study of genetic variants in the BDNF, COMT, DAT1 and SERT genes in Colombian children with attention deficit disorder]. ACTA ACUST UNITED AC 2017; 46:222-8. [PMID: 29122229 DOI: 10.1016/j.rcp.2016.08.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 07/26/2016] [Accepted: 08/15/2016] [Indexed: 12/23/2022]
Abstract
BACKGROUND Attention deficit and hyperactive disorder (ADHD) is highly prevalent among children in Bogota City. Both genetic and environmental factors play a very important role in the etiology of ADHD. However, to date few studies have addressed the association of genetic variants and ADHD in the Colombian population. OBJECTIVES To test the genetic association between polymorphisms in the DAT1, HTTLPR, COMT and BDNF genes and ADHD in a sample from Bogota City. METHODS We genotyped the most common polymorphisms in DAT1, SERT, COMT and BDNF genes associated with ADHD using conventional PCR followed by restriction fragment length polymorphism (RFLP) in 97 trios recruited in a medical center in Bogota. The transmission disequilibrium test (TDT) was used to determine the association between such genetic variants and ADHD. RESULTS The TDT analysis showed that no individual allele of any variant studied has a preferential transmission. CONCLUSIONS Our results suggest that the etiology of the ADHD may be complex and involves several genetic factors. Further studies in other candidate polymorphisms in a larger sample size will improve our knowledge of the ADHD in Colombian population.
Collapse
|
13
|
Papageorgiou N, Briasoulis A, Hatzis G, Androulakis E, Kozanitou M, Miliou A, Charakida M, Zacharia E, Papaioannou S, Paroutoglou I, Siasos G, Pallantza Z, Tousoulis D. Coronary Artery Atherosclerosis in Hypertensive Patients: The Role of Fibrinogen Genetic Variability. ACTA ACUST UNITED AC 2016; 70:34-41. [PMID: 27553289 DOI: 10.1016/j.rec.2016.05.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Accepted: 05/17/2016] [Indexed: 12/12/2022]
Abstract
INTRODUCTION AND OBJECTIVES We examined whether the rs180070 and rs2070011 polymorphisms of the fibrinogen gene could affect the risk of coronary artery disease in hypertensive patients by modifying the inflammatory process and coagulation. METHODS A total of 744 participants underwent coronary angiography due to symptoms of stable angina, while hypertension was present in 332 patients. RESULTS The presence of the A allele (rs180070) was associated with significantly high levels of fibrinogen in hypertensive patients (P=.05). On multivariate analysis, A homozygosity (rs180070) (β = 0.257 ± 18.6; P<.001), but not hypertension status (β = 0.05 ± 11.9; P=.29) was an independent predictor of fibrinogen levels. In hypertensive patients, higher fibrinogen levels>443mg/dL (odds ratio = 3.50; 95% confidence interval, 1.14-10.90; P=.029), but not A homozygosity (odds ratio = 3.00; 95% confidence interval, 0.78-11.90; P = .110) were independent predictors of the presence of coronary artery disease. Moreover, interleukin-6 levels were higher in A homozygotes for the rs180070 polymorphism compared with all other genotypes (P=.046). Indeed, this genotype was the only adjusted independent predictor of interleukin-6 levels (β = 0.151 ± 0.642; P=.032). It was also associated with higher D-dimer levels in hypertension compared with G allele carriers (P=.048). CONCLUSIONS The presence of A homozygosity (rs180070) is associated with increased levels of inflammatory mediators and a higher incidence of angiographic coronary artery disease. Importantly, fibrinogen is an independent predictor of the angiographic presence of coronary artery disease in hypertensive patients.
Collapse
Affiliation(s)
- Nikolaos Papageorgiou
- 1st Cardiology Department, Athens University Medical School, Hippokration Hospital, Athens, Greece; Barts Heart Centre, St. Bartholomew's Hospital, London, United Kingdom
| | - Alexandros Briasoulis
- 1st Cardiology Department, Athens University Medical School, Hippokration Hospital, Athens, Greece; Cardiovascular Institute, Wayne State University, Detroit, United States
| | - Georgios Hatzis
- 1st Cardiology Department, Athens University Medical School, Hippokration Hospital, Athens, Greece
| | - Emmanuel Androulakis
- 1st Cardiology Department, Athens University Medical School, Hippokration Hospital, Athens, Greece; Department of Cardiology, John Radcliffe, Oxford University Hospital, Oxford, United Kingdom
| | - Maria Kozanitou
- 1st Cardiology Department, Athens University Medical School, Hippokration Hospital, Athens, Greece
| | - Antigoni Miliou
- 1st Cardiology Department, Athens University Medical School, Hippokration Hospital, Athens, Greece
| | - Marietta Charakida
- Department of Cardiovascular Imaging, King's College, London, United Kingdom
| | - Effimia Zacharia
- 1st Cardiology Department, Athens University Medical School, Hippokration Hospital, Athens, Greece
| | - Spyridon Papaioannou
- 1st Cardiology Department, Athens University Medical School, Hippokration Hospital, Athens, Greece
| | - Ioannis Paroutoglou
- 1st Cardiology Department, Athens University Medical School, Hippokration Hospital, Athens, Greece
| | - Gerasimos Siasos
- 1st Cardiology Department, Athens University Medical School, Hippokration Hospital, Athens, Greece
| | - Zoi Pallantza
- 1st Cardiology Department, Athens University Medical School, Hippokration Hospital, Athens, Greece
| | - Dimitris Tousoulis
- 1st Cardiology Department, Athens University Medical School, Hippokration Hospital, Athens, Greece.
| |
Collapse
|
14
|
Cruz-González F, Cabrillo Estévez L, Cañete Campos C, Sánchez-Jara Sánchez A, Juan Marcos L, González-Sarmiento R. The presence of CFH, HTRA1, ARMS2, VEGF-A and VEGF-R and the appearance of age-related macular degeneration sub-types. Arch Soc Esp Oftalmol 2016; 91:177-83. [PMID: 26850328 DOI: 10.1016/j.oftal.2015.12.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 12/23/2015] [Accepted: 12/25/2015] [Indexed: 06/05/2023]
Abstract
OBJECTIVE To demonstrate the genetic influence in the onset of the different age-related macular disease (AMD) subtypes by analysing the genotype distribution of CFH, ARMS2, HTRA1, VEGF-A and VEGF-R polymorphisms in patients with neovascular and atrophic AMD. MATERIALS AND METHODS The study was conducted on 101 consecutive patients with AMD diagnosis (74 exudative, 27 atrophic) following Wisconsin international classification criteria. The CFH rs1410996, ARMS2 rs10940923, VEGF-A rs833061, rs699947, and VEGF-R rs2071559 polymorphisms were analysed using real time PCR with taqman probes, and HTRA1 rs112000638 using restriction endonucleases digestion. A study was made of the genotype distribution of the different polymorphisms in our group of patients with neovascular AMD and those with the atrophic type, and a comparison was made of the results for each one of the genes studied. RESULTS No statistically significant differences (P>.05) were found in the genotype distribution of the different polymorphisms between patients with neovascular AMD and patients with atrophic AMD in our population, although the "risk" genotypes tended to appear more frequently in patients with neovascular AMD, despite the lack of statistical significance. CONCLUSIONS Allelic variants of CFH, ARMS2, HTRA1, VEGF-A or VEGF-R genes are not associated with the different AMD subtypes. This suggests that, although the polymorphisms seem to be associated with the disease susceptibility, they are not involved in the onset of the different clinical variants of AMD. Further studies in different populations, and with a larger cohort of patients, are needed to confirm these results.
Collapse
Affiliation(s)
- F Cruz-González
- Servicio de Oftalmología, Hospital Universitario de Salamanca, Salamanca, España.
| | - L Cabrillo Estévez
- Servicio de Oftalmología, Instituto Salmantino de Oftalmología, Salamanca, España
| | - C Cañete Campos
- Servicio de Oftalmología, Hospital Universitario de Salamanca, Salamanca, España
| | | | - L Juan Marcos
- Servicio de Oftalmología, Hospital Universitario de Salamanca, Salamanca, España
| | - R González-Sarmiento
- Departamento de Medicina Molecular, Facultad de Medicina, Universidad de Salamanca, Salamanca, España
| |
Collapse
|
15
|
García-Ortiz L, Gutiérrez-Salinas J, Guerrero-Muñiz S, Chima-Galán MDC, Sánchez-Hernández J. [Intracranial aneurysms and their clinical and genetic behaviour]. CIR CIR 2015; 83:467-72. [PMID: 26188706 DOI: 10.1016/j.circir.2015.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Accepted: 04/08/2015] [Indexed: 11/28/2022]
Abstract
BACKGROUND Intracranial aneurysms are abnormal dilations of the cerebral arteries of unknown origin. However, some genes have been linked to their formation, as in the case of NOS3 gene which encodes the endothelial nitric oxide synthase responsible for producing nitric oxide. Several polymorphisms in this gene, in association with a variable number tandem repeat located in intron 4 from eNOS4 gene, can influence the formation of aneurysms. Therefore, the purpose of this study is to determine the genotype frequencies of eNOS3 and eNOS4 genes, and their relationship with intracranial aneurysms. MATERIAL AND METHODS A prospective case-control study was performed on 79 cases with ruptured intracranial aneurysm and 93 healthy controls. DNA was obtained from all subjects for the study of the eNOS3 and eNOS4 genes by molecular techniques. RESULTS The GG genotype of eNOS3 gene showed the largest number of patients (n=29) with a large aneurysm. While the intracranial aneurysms of medium size were found in a higher percentage (50%) in patients with genotype GT. In terms of patient outcomes, it was observed that those with genotype GG had the highest percentage (43.13%) recovery, compared to genotype GT (27.27%). CONCLUSIONS The present study shows that there is a tendency of an association between genotypes of eNOS3 gene with the mean size of the aneurysm, as well as clinical sequelae of the disease in patients with intracranial aneurysms.
Collapse
Affiliation(s)
- Liliana García-Ortiz
- División de Medicina Genómica, Centro Médico Nacional 20 de Noviembre, Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado, México, D.F., México.
| | - José Gutiérrez-Salinas
- Laboratorio de Bioquímica y Medicina Experimental, División de Investigación Biomédica, Centro Médico Nacional 20 de Noviembre, Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado, México, D.F., México
| | - Salvador Guerrero-Muñiz
- Cirugía Cerebro Vascular, Centro Médico Nacional 20 de Noviembre, Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado, México, D.F., México
| | - María del Carmen Chima-Galán
- División de Medicina Genómica, Centro Médico Nacional 20 de Noviembre, Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado, México, D.F., México
| | - Jonathan Sánchez-Hernández
- Licenciatura en Química, Facultad de Estudios Superiores Cuautitlán-Universidad Nacional Autónoma de México, Cuautitlán, Estado de México, México
| |
Collapse
|
16
|
Torres VM, Saddi VA. Systematic review: hereditary thrombophilia associated to pediatric strokes and cerebral palsy. J Pediatr (Rio J) 2015; 91:22-9. [PMID: 25451211 DOI: 10.1016/j.jped.2014.08.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Revised: 07/25/2014] [Accepted: 08/06/2014] [Indexed: 01/30/2023] Open
Abstract
OBJECTIVES This review aimed to organize and consolidate the latest knowledge about mutations and genetic polymorphisms related to hereditary thrombophilia and their potential association with pediatric stroke and cerebral palsy (CP). SOURCES Scientific articles published from 1993 to 2013, written in Portuguese, English, French, and Spanish, were selected and reviewed. The publications were searched in electronic databases, and also in the collections of local libraries. The terms "hereditary thrombophilia", "polymorphisms", "mutation", "pediatric strokes", and "cerebral palsy" were used for the research. SUMMARY OF THE FINDINGS The search in databases and in the bibliographic references retrieved 75 articles for inclusion in this review. Studies that investigated hereditary thrombophilias and their associations to CP and arterial and venous pediatric stroke presented contradictory results. The meta-analysis and case-control studies that showed positive results for this association described only slightly increased relative risks and sometimes had questionable conclusions. The association of two or more hereditary thrombophilias, or the association between thrombophilia and other specific clinical risk factors, suggest a higher risk of CP and pediatric stroke than isolated hereditary thrombophilia. CONCLUSIONS Larger, multicenter studies should be developed in order to elucidate the role of mutations leading to hereditary thrombophilia and the development of CP and pediatric stroke. The complex and multifactorial etiology of CP and stroke makes this an arduous and difficult task; however, the benefits generated by these studies are immeasurable.
Collapse
Affiliation(s)
- Vinicius M Torres
- Department of Medicine, Pontifícia Universidade Católica de Goiás (PUC Goiás), Goiânia, GO, Brazil
| | - Vera A Saddi
- Genetics Master Program, Pontifícia Universidade Católica de Goiás (PUC Goiás), Goiânia, GO, Brazil; Laboratory of Oncogenetics and Radiobiology, Associação de Combate ao Câncer, Goiás, Goiânia, GO, Brazil.
| |
Collapse
|
17
|
Ferrán A, Alegret JM, Subirana I, Aragonès G, Lluis-Ganella C, Romero-Menor C, Planas F, Joven J, Elosua R. Association between rs2200733 and rs7193343 genetic variants and atrial fibrillation in a Spanish population, and meta-analysis of previous studies. Rev Esp Cardiol (Engl Ed) 2014; 67:822-9. [PMID: 25262128 DOI: 10.1016/j.rec.2013.12.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2013] [Accepted: 12/19/2013] [Indexed: 02/03/2023]
Abstract
INTRODUCTION AND OBJECTIVES The objectives of this study were to analyze the association between two genetic variants (rs2200733 and rs7193343) in a Spanish population and the risk of developing atrial fibrillation, and to carry out a systematic review and meta-analysis of these associations. METHODS We performed a case-control study involving 257 case patients with atrial fibrillation and 379 controls. The case patients were individuals who had donated samples to the Spanish National DNA Bank; the controls were participating in a population-based cross-sectional study. Genotyping was carried out using a TaqMan assay. We conducted a systematic literature search in which 2 independent reviewers extracted the necessary information. The study involved a meta-analysis, a heterogeneity analysis, and a meta-regression analysis to identify the variables that explain the heterogeneity across studies. RESULTS In our population, the presence of atrial fibrillation was found to be associated with rs2200733 (odds ratio = 1.87; 95% confidence interval, 1.30-2.70), but not with rs7193343 (odds ratio = 1.18; 95% confidence interval, 0.80-1.73). In the meta-analysis, we observed an association between atrial fibrillation and both variants: odds ratio = 1.71 (95% confidence interval, 1.54-1.90) for rs2200733 and odds ratio = 1.18 (95% confidence interval, 1.11-1.25) for rs7193343. We observed heterogeneity among the studies dealing with the association between rs2200733 and atrial fibrillation, partially related to the study design, and the strength of association was greater in case-control studies (odds ratio = 1.83) than in cohort studies (odds ratio = 1.41). CONCLUSIONS Variants rs2200733 and rs7193343 are associated with a higher risk of atrial fibrillation. Case-control studies tend to overestimate the strength of association between these genetic variants and atrial fibrillation.
Collapse
Affiliation(s)
- Albert Ferrán
- Grupo de Investigación en Epidemiología y Genética Cardiovascular, IMIM (Institut Hospital del Mar d'Investigacions Mèdiques), Barcelona, Spain
| | - José María Alegret
- Sección de Cardiología, Hospital Universitari de Sant Joan, Grup de Recerca Cardiovascular, IISPV, Universitat Rovira i Virgili, Reus, Tarragona, Spain
| | - Isaac Subirana
- Grupo de Investigación en Epidemiología y Genética Cardiovascular, IMIM (Institut Hospital del Mar d'Investigacions Mèdiques), Barcelona, Spain; CIBER de Epidemiología y Salud Pública, Barcelona, Spain
| | - Gerard Aragonès
- Sección de Cardiología, Hospital Universitari de Sant Joan, Grup de Recerca Cardiovascular, IISPV, Universitat Rovira i Virgili, Reus, Tarragona, Spain; Centre for Omic Sciences, Servei de Recursos Científics i Tècnics, Universitat Rovira i Virgili, Tarragona, Spain
| | - Carla Lluis-Ganella
- Grupo de Investigación en Epidemiología y Genética Cardiovascular, IMIM (Institut Hospital del Mar d'Investigacions Mèdiques), Barcelona, Spain
| | - César Romero-Menor
- Servicio de Cardiología, Parc Sanitari Sant Joan de Déu, Sant Boi de Llobregat, Barcelona, Spain
| | - Francesc Planas
- Servicio de Cardiología, Hospital Municipal de Badalona, Badalona, Barcelona, Spain
| | - Jorge Joven
- Unidad de Investigación Biomédica (URB-CRB), IISPV, Hospital Universitari de Sant Joan, Universitat Rovira i Virgili, Reus, Tarragona, Spain
| | - Roberto Elosua
- Grupo de Investigación en Epidemiología y Genética Cardiovascular, IMIM (Institut Hospital del Mar d'Investigacions Mèdiques), Barcelona, Spain.
| |
Collapse
|
18
|
García-González MA, Lanas A. Genetic susceptibility and gastric cancer risk: the importance of meta-analyses as a statistical tool. Gastroenterol Hepatol. 2014;37:421-426. [PMID: 24661935 DOI: 10.1016/j.gastrohep.2014.01.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2013] [Revised: 01/21/2014] [Accepted: 01/29/2014] [Indexed: 12/12/2022]
Abstract
Gastric cancer (GC) is a complex disease and a worldwide health burden due to its high prevalence and poor prognosis. A deeper knowledge of the factors involved in the development and progression of GC could help to identify subpopulations at risk that therefore require surveillance or early treatment strategies. Current research is based on the study of genetic variants that confer a higher risk of GC and their interactions with environmental exposure. Recently, meta-analysis has emerged as an important statistical method involving pooling of data from individual association studies to increase statistical power and obtain more conclusive results. Given the importance of chronic inflammation in the process of gastric carcinogenesis, the present article reviews the most recent meta-analyses of the contribution of cytokine gene polymorphisms to GC risk.
Collapse
|
19
|
Tellería-Orriols JJ, García-Salido A, Varillas D, Serrano-González A, Casado-Flores J. TLR2-TLR4/CD14 polymorphisms and predisposition to severe invasive infections by Neisseria meningitidis and Streptococcus pneumoniae. Med Intensiva 2013; 38:356-62. [PMID: 24144680 DOI: 10.1016/j.medin.2013.08.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2013] [Revised: 07/09/2013] [Accepted: 08/01/2013] [Indexed: 12/19/2022]
Abstract
PURPOSE Streptococcus pneumoniae and Neisseria meningitidis are major causes of severe invasive bacterial infections in some individuals. Apparently the genetic is a major susceptibility determinant to these infectious diseases. We study if the functional polymorphisms within genes of the innate immune system (TLR2-TLR4 and CD14) are related to the predisposition to severe invasive infections caused by S. pneumoniae and N. meningitidis. MATERIAL AND METHODS Prospective descriptive study. Sixty-six Caucasian healthy children and 173 consecutive Caucasian children with invasive bacterial infections by N. meningitidis (n=59) and S. pneumoniae (n=114) were enrolled between January 1, 2008 and December 31, 2010. All blood samples were genotyped with description of the coding polymorphisms in p.R753Q of TLR2 gene and p.D299G of TLR4 gene as well as the promotor polymorphism c.-159C>T of the CD14 gene. RESULTS Compared to the controls the p.753Q allele of TLR2 and the allele c.-159T of CD14 were more frequent in patients with S. pneumoniae (p<0.0001 and p=0.0167) and meningococcal infections (p=0.0003 and p=0.0276 respectively). CONCLUSIONS Genetical variations in the innate immune system by polymorphisms in the TLR2 and CD14, could be related with an increases susceptibility to severe invasive infections by S. pneumoniae and N. meningitidis.
Collapse
Affiliation(s)
| | - A García-Salido
- Pediatric Critical Care Unit, Hospital Infantil Universitario Niño Jesús, Madrid, Spain.
| | - D Varillas
- Medicine Faculty, University of Valladolid, Valladolid, Spain
| | - A Serrano-González
- Pediatric Critical Care Unit, Hospital Infantil Universitario Niño Jesús, Madrid, Spain
| | - J Casado-Flores
- Pediatric Critical Care Unit, Hospital Infantil Universitario Niño Jesús, Madrid, Spain
| |
Collapse
|
20
|
de la Cruz-Mosso U, Muñoz-Valle JF, Salgado-Bernabé AB, Castro-Alarcón N, Salgado-Goytia L, Sánchez-Corona J, Flores-Martínez SE, Parra-Rojas I. Body adiposity but not insulin resistance is associated with -675 4G/5G polymorphism in the PAI-1 gene in a sample of Mexican children. J Pediatr (Rio J) 2013; 89:492-8. [PMID: 23871496 DOI: 10.1016/j.jped.2013.01.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2012] [Accepted: 01/10/2013] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVE To assess whether the -675 4G/5G polymorphism in the plasminogen activator inhibitor-1 gene is associated with obesity and insulin resistance in Mexican children. METHODS A cross-sectional study was performed in 174 children, 89 with normal-weight and 85 with obesity, aged from 6 to 13 years. All children were from state of Guerrero, and recruited from three primary schools in the city of Chilpancingo, state of Guerrero, Mexico. Insulin levels were determined by immunoenzymatic assay. The homeostasis model assessment was used to determine insulin resistance. The -675 4G/5G polymorphism in PAI-1 gene was analyzed by polymerase chain reaction-restriction fragment length polymorphism. RESULTS The prevalence of insulin resistance in the obese group was higher (49.41%) than in the normal-weight group (16.85%). The 4G/5G PAI-1 polymorphism was found in Hardy Weinberg equilibrium. The 4G/5G genotype contributed to a significant increase in waist-hip ratio (β=0.02, p=0.006), waist circumference (β=4.42, p=0.009), and subscapular skinfold thickness (β=1.79, p=0.04); however, it was not related with insulin resistance. CONCLUSION The -675 4G/5G genotype of PAI-1 gene was associated with increase of body adiposity in Mexican children.
Collapse
|