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1.
Res Sq ; 2024 Apr 02.
Artículo en Inglés | MEDLINE | ID: mdl-38645143

RESUMEN

Preeclampsia is a common multifactorial disease of pregnancy. Dysregulation of the complement activation is among emerging candidates responsible for disease pathogenesis. In a targeted exomic sequencing study we identified 14 variants within nine genes coding for components of the membrane attack complex (MAC, C5b-9) that are associated with preeclampsia. We found two rare missense variants in the C5 gene that predispose to preeclampsia (rs200674959: I1296V, OR (CI95) = 24.13 (1.25-467.43), p-value = 0.01 and rs147430470: I330T, OR (CI95) = 22.75 (1.17-440.78), p-value = 0.01). In addition, one predisposing rare variant and one protective rare variant were discovered in C6 (rs41271067: D396G, OR (CI95) = 2.93 (1.18-7.10), p-value = 0.01 and rs114609505: T190I, 0.02 OR (CI95) = 0.47 (0.22-0.92), p-value = 0.02). The results suggest that variants in terminal complement pathway predispose to preeclampsia.

2.
Head Face Med ; 19(1): 45, 2023 Oct 23.
Artículo en Inglés | MEDLINE | ID: mdl-37872614

RESUMEN

BACKGROUND: This retrospective study clarified patients´ psychiatric morbidity in IPV-related facial fractures; in particular, their additional psychiatric care. We hypothesized that patients in need of additional support can be identified, allowing overall care processes to be improved. METHODS: Patients' age, sex, anamnestic psychiatric disorders, history of substance abuse, and psychiatric interventions were recorded, as well as the perpetrator, location, time of day, assault mechanism, fracture type, treatment, and associated injuries. RESULTS: In all, 807 adult patients were included in the study. Of these, 205 patients (25.4%) had anamnestic psychiatric disorders that were associated independently with female sex (OR 1.95, 95% CI 1.12, 3.41; p = 0.019) or history of substance abuse (OR 5.82, 95% CI 4.01, 8.46; p < 0.001). Patients with anamnestic psychiatric disorder were more likely to be subjected to severe violence, with an increased risk for combination fractures (OR 2.51, 95% CI 1.30, 4.83; p = 0.006). Of all patients, 61 (7.6%) received a psychiatric intervention within the first 12 months. The most common reasons for intervention were anxiety/fear and psychotic symptoms, surfacing within one month in 57% of patients. Anamnestic psychiatric disorders (OR 2.00, 95% CI 1.04, 3.82; p = 0.036), severe mental illnesses (OR 2.45, 95% CI 1.04, 5.77; p = 0.040), and use of an offensive weapon (OR 2.11, 95% CI 1.11, 4.02; p = 0.023) were the strongest independent predictors of psychiatric intervention. CONCLUSIONS: Our results emphasize the need for more structured treatment protocols for patients sustaining IPV injury. Special attention is recommended for patients with anamnestic psychiatric disorders, severe mental illnesses, and those assaulted with an offensive weapon.


Asunto(s)
Trastornos Mentales , Trastornos Relacionados con Sustancias , Adulto , Humanos , Femenino , Estudios Retrospectivos , Trastornos Mentales/epidemiología , Trastornos Mentales/terapia , Violencia
3.
Nat Commun ; 14(1): 4646, 2023 08 02.
Artículo en Inglés | MEDLINE | ID: mdl-37532724

RESUMEN

Resting heart rate is associated with cardiovascular diseases and mortality in observational and Mendelian randomization studies. The aims of this study are to extend the number of resting heart rate associated genetic variants and to obtain further insights in resting heart rate biology and its clinical consequences. A genome-wide meta-analysis of 100 studies in up to 835,465 individuals reveals 493 independent genetic variants in 352 loci, including 68 genetic variants outside previously identified resting heart rate associated loci. We prioritize 670 genes and in silico annotations point to their enrichment in cardiomyocytes and provide insights in their ECG signature. Two-sample Mendelian randomization analyses indicate that higher genetically predicted resting heart rate increases risk of dilated cardiomyopathy, but decreases risk of developing atrial fibrillation, ischemic stroke, and cardio-embolic stroke. We do not find evidence for a linear or non-linear genetic association between resting heart rate and all-cause mortality in contrast to our previous Mendelian randomization study. Systematic alteration of key differences between the current and previous Mendelian randomization study indicates that the most likely cause of the discrepancy between these studies arises from false positive findings in previous one-sample MR analyses caused by weak-instrument bias at lower P-value thresholds. The results extend our understanding of resting heart rate biology and give additional insights in its role in cardiovascular disease development.


Asunto(s)
Fibrilación Atrial , Enfermedades Cardiovasculares , Humanos , Enfermedades Cardiovasculares/genética , Factores de Riesgo , Frecuencia Cardíaca/genética , Predisposición Genética a la Enfermedad , Análisis de la Aleatorización Mendeliana/métodos , Estudio de Asociación del Genoma Completo/métodos , Polimorfismo de Nucleótido Simple
4.
BJOG ; 130(12): 1473-1482, 2023 11.
Artículo en Inglés | MEDLINE | ID: mdl-37156755

RESUMEN

OBJECTIVE: The objective of the study was to investigate the role of genetic variants in complement proteins in pre-eclampsia. DESIGN: In a case-control study involving 609 cases and 2092 controls, five rare variants in complement factor H (CFH) were identified in women with severe and complicated pre-eclampsia. No variants were identified in controls. SETTING: Pre-eclampsia is a leading cause of maternal and fetal morbidity and mortality. Immune maladaptation, in particular, complement activation that disrupts maternal-fetal tolerance leading to placental dysfunction and endothelial injury, has been proposed as a pathogenetic mechanism, but this remains unproven. POPULATION: We genotyped 609 pre-eclampsia cases and 2092 controls from FINNPEC and the national FINRISK cohorts. METHODS: Complement-based functional and structural assays were conducted in vitro to define the significance of these five missense variants and each compared with wild type. MAIN OUTCOME MEASURES: Secretion, expression and ability to regulate complement activation were assessed for factor H proteins harbouring the mutations. RESULTS: We identified five heterozygous rare variants in complement factor H (L3V, R127H, R166Q, C1077S and N1176K) in seven women with severe pre-eclampsia. These variants were not identified in controls. Variants C1077S and N1176K were novel. Antigenic, functional and structural analyses established that four (R127H, R166Q, C1077S and N1176K) were deleterious. Variants R127H and C1077S were synthesised, but not secreted. Variants R166Q and N1176K were secreted normally but showed reduced binding to C3b and consequently defective complement regulatory activity. No defect was identified for L3V. CONCLUSIONS: These results suggest that complement dysregulation due to mutations in complement factor H is among the pathophysiological mechanisms underlying severe pre-eclampsia.


Asunto(s)
Factor H de Complemento , Preeclampsia , Humanos , Embarazo , Femenino , Factor H de Complemento/genética , Factor H de Complemento/metabolismo , Estudios de Casos y Controles , Placenta/metabolismo , Preeclampsia/genética , Genotipo
6.
Nature ; 613(7944): 508-518, 2023 01.
Artículo en Inglés | MEDLINE | ID: mdl-36653562

RESUMEN

Population isolates such as those in Finland benefit genetic research because deleterious alleles are often concentrated on a small number of low-frequency variants (0.1% ≤ minor allele frequency < 5%). These variants survived the founding bottleneck rather than being distributed over a large number of ultrarare variants. Although this effect is well established in Mendelian genetics, its value in common disease genetics is less explored1,2. FinnGen aims to study the genome and national health register data of 500,000 Finnish individuals. Given the relatively high median age of participants (63 years) and the substantial fraction of hospital-based recruitment, FinnGen is enriched for disease end points. Here we analyse data from 224,737 participants from FinnGen and study 15 diseases that have previously been investigated in large genome-wide association studies (GWASs). We also include meta-analyses of biobank data from Estonia and the United Kingdom. We identified 30 new associations, primarily low-frequency variants, enriched in the Finnish population. A GWAS of 1,932 diseases also identified 2,733 genome-wide significant associations (893 phenome-wide significant (PWS), P < 2.6 × 10-11) at 2,496 (771 PWS) independent loci with 807 (247 PWS) end points. Among these, fine-mapping implicated 148 (73 PWS) coding variants associated with 83 (42 PWS) end points. Moreover, 91 (47 PWS) had an allele frequency of <5% in non-Finnish European individuals, of which 62 (32 PWS) were enriched by more than twofold in Finland. These findings demonstrate the power of bottlenecked populations to find entry points into the biology of common diseases through low-frequency, high impact variants.


Asunto(s)
Enfermedad , Frecuencia de los Genes , Fenotipo , Humanos , Persona de Mediana Edad , Enfermedad/genética , Estonia , Finlandia , Frecuencia de los Genes/genética , Predisposición Genética a la Enfermedad/genética , Estudio de Asociación del Genoma Completo , Metaanálisis como Asunto , Reino Unido , Población Blanca/genética
7.
Artículo en Inglés | MEDLINE | ID: mdl-36529673

RESUMEN

OBJECTIVE: The study aimed to clarify psychiatric morbidity in patients who underwent orthognathic surgery (OS) pre- and postoperatively. STUDY DESIGN: Patients ≥18 years undergoing OS were included in this retrospective study. The outcome variable was the incidence of new mild, moderate, or severe psychiatric morbidity or exacerbation of preexisting psychiatric morbidity postoperatively. Surgery and patient-related background variables for outcome were analyzed (SPSS for Macintosh, version 27; IBM SPSS, Inc., Armonk, NY, USA). RESULTS: Of 182 patients, 44 (24%) had preceding psychiatric morbidity. It was associated significantly with history of alcohol abuse (P < .001) and smoking (P = .046) and was more common in older patients (P = .042). During the postoperative phase, new psychiatric morbidity or exacerbation of a preexisting psychiatric condition was found in 12 patients (7%). Preceding psychiatric history (OR 8.88, P = .004) and high-dose perioperative dexamethasone (OR 9.81, P = .036) were independent predictors for postoperative psychiatric morbidity. No other evaluated variables were associated with outcome. CONCLUSIONS: Psychiatric conditions are common among OS patients. Treatment planning should consider the patient's mental health to minimize the risk of exacerbating psychiatric conditions, and collaboration with psychiatric professionals is recommended. Perioperative high-dose dexamethasone should be used with caution considering possible adverse psychiatric effects.


Asunto(s)
Cirugía Ortognática , Humanos , Anciano , Estudios Retrospectivos , Morbilidad , Incidencia , Dexametasona
8.
Front Genet ; 12: 763159, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34777479

RESUMEN

We present a method for communicating personalized genetic risk information to citizens and their physicians using a secure web portal. We apply the method for 3,177 Finnish individuals in the P5 Study where estimates of genetic and absolute risk, based on genetic and clinical risk factors, of future disease are reported to study participants, allowing individuals to participate in managing their own health. Our method facilitates using polygenic risk score as a personalized tool to estimate a person's future disease risk while offering a way for health care professionals to utilize the polygenic risk scores as a preventive tool in patient care.

9.
Nat Commun ; 11(1): 5976, 2020 11 25.
Artículo en Inglés | MEDLINE | ID: mdl-33239696

RESUMEN

Preeclampsia is a serious complication of pregnancy, affecting both maternal and fetal health. In genome-wide association meta-analysis of European and Central Asian mothers, we identify sequence variants that associate with preeclampsia in the maternal genome at ZNF831/20q13 and FTO/16q12. These are previously established variants for blood pressure (BP) and the FTO variant has also been associated with body mass index (BMI). Further analysis of BP variants establishes that variants at MECOM/3q26, FGF5/4q21 and SH2B3/12q24 also associate with preeclampsia through the maternal genome. We further show that a polygenic risk score for hypertension associates with preeclampsia. However, comparison with gestational hypertension indicates that additional factors modify the risk of preeclampsia.


Asunto(s)
Predisposición Genética a la Enfermedad , Hipertensión Inducida en el Embarazo/genética , Herencia Multifactorial , Preeclampsia/genética , Proteínas Adaptadoras Transductoras de Señales/genética , Adulto , Anciano , Dioxigenasa FTO Dependiente de Alfa-Cetoglutarato/genética , Asia Central/epidemiología , Presión Sanguínea/genética , Estudios de Casos y Controles , Conjuntos de Datos como Asunto , Europa (Continente)/epidemiología , Femenino , Factor 5 de Crecimiento de Fibroblastos/genética , Sitios Genéticos/genética , Estudio de Asociación del Genoma Completo , Humanos , Hipertensión Inducida en el Embarazo/epidemiología , Proteína del Locus del Complejo MDS1 y EV11/genética , Persona de Mediana Edad , Preeclampsia/epidemiología , Embarazo , Estudios Prospectivos
10.
Hypertension ; 70(2): 365-371, 2017 08.
Artículo en Inglés | MEDLINE | ID: mdl-28652462

RESUMEN

Preeclampsia is a common pregnancy-specific vascular disorder characterized by new-onset hypertension and proteinuria during the second half of pregnancy. Predisposition to preeclampsia is in part heritable. It is associated with an increased risk of cardiovascular disease later in life. We have sequenced 124 candidate genes implicated in preeclampsia to pinpoint genetic variants contributing to predisposition to or protection from preeclampsia. First, targeted exomic sequencing was performed in 500 preeclamptic women and 190 controls from the FINNPEC cohort (Finnish Genetics of Preeclampsia Consortium). Then 122 women with a history of preeclampsia and 1905 parous women with no such history from the National FINRISK Study (a large Finnish population survey on risk factors of chronic, noncommunicable diseases) were included in the analyses. We tested 146 rare and low-frequency variants and found an excess (observed 13 versus expected 7.3) nominally associated with preeclampsia (P<0.05). The most significantly associated sequence variants were protective variants rs35832528 (E982A; P=2.49E-4; odds ratio=0.387) and rs141440705 (R54S; P=0.003; odds ratio=0.442) in Fms related tyrosine kinase 1. These variants are enriched in the Finnish population with minor allele frequencies 0.026 and 0.017, respectively. They may also be associated with a lower risk of heart failure in 11 257 FINRISK women. This study provides the first evidence of maternal protective genetic variants in preeclampsia.


Asunto(s)
Hipertensión , Preeclampsia , Receptor 1 de Factores de Crecimiento Endotelial Vascular/genética , Adulto , Femenino , Finlandia/epidemiología , Variación Genética , Humanos , Hipertensión/diagnóstico , Hipertensión/etiología , Preeclampsia/epidemiología , Preeclampsia/genética , Preeclampsia/fisiopatología , Embarazo , Factores Protectores
11.
BMC Med ; 14(1): 205, 2016 Dec 13.
Artículo en Inglés | MEDLINE | ID: mdl-27955712

RESUMEN

BACKGROUND: Pregnancy triggers well-known alterations in maternal glucose and lipid balance but its overall effects on systemic metabolism remain incompletely understood. METHODS: Detailed molecular profiles (87 metabolic measures and 37 cytokines) were measured for up to 4260 women (24-49 years, 322 pregnant) from three population-based cohorts in Finland. Circulating molecular concentrations in pregnant women were compared to those in non-pregnant women. Metabolic profiles were also reassessed for 583 women 6 years later to uncover the longitudinal metabolic changes in response to change in the pregnancy status. RESULTS: Compared to non-pregnant women, all lipoprotein subclasses and lipids were markedly increased in pregnant women. The most pronounced differences were observed for the intermediate-density, low-density and high-density lipoprotein triglyceride concentrations. Large differences were also seen for many fatty acids and amino acids. Pregnant women also had higher concentrations of low-grade inflammatory marker glycoprotein acetyls, higher concentrations of interleukin-18 and lower concentrations of interleukin-12p70. The changes in metabolic concentrations for women who were not pregnant at baseline but pregnant 6 years later (or vice versa) matched (or were mirror-images of) the cross-sectional association pattern. Cross-sectional results were consistent across the three cohorts and similar longitudinal changes were seen for 653 women in 4-year and 497 women in 10-year follow-up. For multiple metabolic measures, the changes increased in magnitude across the three trimesters. CONCLUSIONS: Pregnancy initiates substantial metabolic and inflammatory changes in the mothers. Comprehensive characterisation of normal pregnancy is important for gaining understanding of the key nutrients for fetal growth and development. These findings also provide a valuable molecular reference in relation to studies of adverse pregnancy outcomes.


Asunto(s)
Metabolómica/métodos , Embarazo/metabolismo , Adulto , Estudios Transversales , Femenino , Finlandia , Humanos , Persona de Mediana Edad , Adulto Joven
12.
Int J Epidemiol ; 45(5): 1539-1550, 2016 10.
Artículo en Inglés | MEDLINE | ID: mdl-27892411

RESUMEN

BACKGROUND: Lower birthweight is associated with increased susceptibility to cardiometabolic diseases in adulthood, but the underlying molecular pathways are incompletely understood. We examined associations of birthweight with a comprehensive metabolic profile measured in adolescents and adults. METHODS: High-throughput nuclear magnetic resonance metabolomics and biochemical assays were used to quantify 87 circulating metabolic measures in seven cohorts from Finland and the UK, comprising altogether 18 288 individuals (mean age 26 years, range 15-75). Metabolic associations with birthweight were assessed by linear regression models adjusted for sex, gestational age and age at blood sampling. The metabolic associations with birthweight were compared with the corresponding associations with adult body mass index (BMI). RESULTS: Lower birthweight adjusted for gestational age was adversely associated with cardiometabolic biomarkers, including lipoprotein subclasses, fatty acids, amino acids and markers of inflammation and impaired liver function (P < 0.0015 for 46 measures). Associations were consistent across cohorts with different ages at metabolic profiling, but the magnitudes were weak. The pattern of metabolic deviations associated with lower birthweight resembled the metabolic signature of higher adult BMI (R2 = 0.77) assessed at the same time as the metabolic profiling. The resemblance indicated that 1 kg lower birthweight is associated with similar metabolic aberrations as caused by 0.92 units higher BMI in adulthood. CONCLUSIONS: Lower birthweight adjusted for gestational age is associated with adverse biomarker aberrations across multiple metabolic pathways. Coherent metabolic signatures between lower birthweight and higher adult adiposity suggest that shared molecular pathways may potentially underpin the metabolic deviations. However, the magnitudes of metabolic associations with birthweight are modest in comparison to the effects of adiposity, implying that birthweight is only a weak indicator of the metabolic risk profile in adulthood.


Asunto(s)
Aminoácidos/sangre , Susceptibilidad a Enfermedades/sangre , Ácidos Grasos/sangre , Recién Nacido de Bajo Peso/sangre , Lipoproteínas/sangre , Adiposidad , Adolescente , Adulto , Anciano , Biomarcadores/sangre , Índice de Masa Corporal , Susceptibilidad a Enfermedades/metabolismo , Femenino , Finlandia , Edad Gestacional , Ensayos Analíticos de Alto Rendimiento , Humanos , Recién Nacido de Bajo Peso/metabolismo , Recién Nacido , Masculino , Metabolómica , Persona de Mediana Edad , Factores de Riesgo , Reino Unido , Adulto Joven
13.
Nat Genet ; 48(12): 1462-1472, 2016 12.
Artículo en Inglés | MEDLINE | ID: mdl-27798627

RESUMEN

The genetic architecture of human reproductive behavior-age at first birth (AFB) and number of children ever born (NEB)-has a strong relationship with fitness, human development, infertility and risk of neuropsychiatric disorders. However, very few genetic loci have been identified, and the underlying mechanisms of AFB and NEB are poorly understood. We report a large genome-wide association study of both sexes including 251,151 individuals for AFB and 343,072 individuals for NEB. We identified 12 independent loci that are significantly associated with AFB and/or NEB in a SNP-based genome-wide association study and 4 additional loci associated in a gene-based effort. These loci harbor genes that are likely to have a role, either directly or by affecting non-local gene expression, in human reproduction and infertility, thereby increasing understanding of these complex traits.


Asunto(s)
Orden de Nacimiento , Estudio de Asociación del Genoma Completo , Paridad/genética , Sitios de Carácter Cuantitativo , Reproducción/genética , Conducta Reproductiva/fisiología , Femenino , Fertilidad/genética , Humanos , Edad Materna , Fenotipo , Polimorfismo de Nucleótido Simple/genética , Embarazo
14.
Int J Epidemiol ; 45(5): 1445-1457, 2016 10.
Artículo en Inglés | MEDLINE | ID: mdl-27538888

RESUMEN

BACKGROUND: Hormonal contraception is commonly used worldwide, but its systemic effects across lipoprotein subclasses, fatty acids, circulating metabolites and cytokines remain poorly understood. METHODS: A comprehensive molecular profile (75 metabolic measures and 37 cytokines) was measured for up to 5841 women (age range 24-49 years) from three population-based cohorts. Women using combined oral contraceptive pills (COCPs) or progestin-only contraceptives (POCs) were compared with those who did not use hormonal contraception. Metabolomics profiles were reassessed for 869 women after 6 years to uncover the metabolic effects of starting, stopping and persistently using hormonal contraception. RESULTS: The comprehensive molecular profiling allowed multiple new findings on the metabolic associations with the use of COCPs. They were positively associated with lipoprotein subclasses, including all high-density lipoprotein (HDL) subclasses. The associations with fatty acids and amino acids were strong and variable in direction. COCP use was negatively associated with albumin and positively associated with creatinine and inflammatory markers, including glycoprotein acetyls and several growth factors and interleukins. Our findings also confirmed previous results e.g. for increased circulating triglycerides and HDL cholesterol. Starting COCPs caused similar metabolic changes to those observed cross-sectionally: the changes were maintained in consistent users and normalized in those who stopped using. In contrast, POCs were only weakly associated with metabolic and inflammatory markers. Results were consistent across all cohorts and for different COCP preparations and different types of POC delivery. CONCLUSIONS: Use of COCPs causes widespread metabolic and inflammatory effects. However, persistent use does not appear to accumulate the effects over time and the metabolic perturbations are reversed upon discontinuation. POCs have little effect on systemic metabolism and inflammation.


Asunto(s)
HDL-Colesterol/sangre , Anticonceptivos Hormonales Orales/farmacología , Metaboloma/efectos de los fármacos , Progestinas/farmacología , Triglicéridos/sangre , Adulto , Estudios Transversales , Citocinas/sangre , Ácidos Grasos/sangre , Femenino , Finlandia , Humanos , Modelos Lineales , Estudios Longitudinales , Metabolómica , Factores de Riesgo , Adulto Joven
15.
Sci Rep ; 6: 20092, 2016 Feb 01.
Artículo en Inglés | MEDLINE | ID: mdl-26833182

RESUMEN

Genome-wide association studies (GWAS) of complex behavioural phenotypes such as cigarette smoking typically employ self-report phenotypes. However, precise biomarker phenotypes may afford greater statistical power and identify novel variants. Here we report the results of a GWAS meta-analysis of levels of cotinine, the primary metabolite of nicotine, in 4,548 daily smokers of European ancestry. We identified a locus close to UGT2B10 at 4q13.2 (minimum p = 5.89 × 10(-10) for rs114612145), which was consequently replicated. This variant is in high linkage disequilibrium with a known functional variant in the UGT2B10 gene which is associated with reduced nicotine and cotinine glucuronidation activity, but intriguingly is not associated with nicotine intake. Additionally, we observed association between multiple variants within the 15q25.1 region and cotinine levels, all located within the CHRNA5-A3-B4 gene cluster or adjacent genes, consistent with previous much larger GWAS using self-report measures of smoking quantity. These results clearly illustrate the increase in power afforded by using precise biomarker measures in GWAS. Perhaps more importantly however, they also highlight that biomarkers do not always mark the phenotype of interest. The use of metabolite data as a proxy for environmental exposures should be carefully considered in the context of individual differences in metabolic pathways.


Asunto(s)
Cromosomas Humanos Par 4/genética , Cotinina , Sitios Genéticos , Desequilibrio de Ligamiento , Fumar/genética , Femenino , Estudio de Asociación del Genoma Completo , Glucuronosiltransferasa/genética , Humanos , Masculino
16.
Nat Genet ; 47(10): 1121-1130, 2015 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-26343387

RESUMEN

Existing knowledge of genetic variants affecting risk of coronary artery disease (CAD) is largely based on genome-wide association study (GWAS) analysis of common SNPs. Leveraging phased haplotypes from the 1000 Genomes Project, we report a GWAS meta-analysis of ∼185,000 CAD cases and controls, interrogating 6.7 million common (minor allele frequency (MAF) > 0.05) and 2.7 million low-frequency (0.005 < MAF < 0.05) variants. In addition to confirming most known CAD-associated loci, we identified ten new loci (eight additive and two recessive) that contain candidate causal genes newly implicating biological processes in vessel walls. We observed intralocus allelic heterogeneity but little evidence of low-frequency variants with larger effects and no evidence of synthetic association. Our analysis provides a comprehensive survey of the fine genetic architecture of CAD, showing that genetic susceptibility to this common disease is largely determined by common SNPs of small effect size.


Asunto(s)
Enfermedad de la Arteria Coronaria/genética , Genoma Humano , Estudio de Asociación del Genoma Completo , Humanos , Fenotipo
17.
Nat Commun ; 5: 4708, 2014 Aug 21.
Artículo en Inglés | MEDLINE | ID: mdl-25144627

RESUMEN

The ageing of the global population calls for a better understanding of age-related metabolic consequences. Here we report the effects of age, sex and menopause on serum metabolites in 26,065 individuals of Northern European ancestry. Age-specific metabolic fingerprints differ significantly by gender and, in females, a substantial atherogenic shift overlapping the time of menopausal transition is observed. In meta-analysis of 10,083 women, menopause status associates with amino acids glutamine, tyrosine and isoleucine, along with serum cholesterol measures and atherogenic lipoproteins. Among 3,204 women aged 40-55 years, menopause status associates additionally with glycine and total, monounsaturated, and omega-7 and -9 fatty acids. Our findings suggest that, in addition to lipid alterations, menopause may contribute to future metabolic and cardiovascular risk via influencing amino-acid concentrations, adding to the growing evidence of the importance of amino acids in metabolic disease progression. These observations shed light on the metabolic consequences of ageing, gender and menopause at the population level.


Asunto(s)
Envejecimiento/fisiología , Sangre/metabolismo , Menopausia/metabolismo , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Aminoácidos/sangre , Enfermedades Cardiovasculares/metabolismo , Estudios de Cohortes , Estonia , Femenino , Finlandia , Humanos , Lípidos/sangre , Masculino , Persona de Mediana Edad , Factores de Riesgo , Población Blanca , Adulto Joven
18.
PLoS One ; 3(10): e3615, 2008.
Artículo en Inglés | MEDLINE | ID: mdl-18974842

RESUMEN

BACKGROUND: Cardiovascular disease (CVD) incidence, complications and burden differ markedly between women and men. Although there is variation in the distribution of lifestyle factors between the genders, they do not fully explain the differences in CVD incidence and suggest the existence of gender-specific genetic risk factors. We aimed to estimate whether the genetic risk profiles of coronary heart disease (CHD), ischemic stroke and the composite end-point of CVD differ between the genders. METHODOLOGY/PRINCIPAL FINDINGS: We studied in two Finnish population cohorts, using the case-cohort design the association between common variation in 46 candidate genes and CHD, ischemic stroke, CVD, and CVD-related quantitative risk factors. We analyzed men and women jointly and also conducted genotype-gender interaction analysis. Several allelic variants conferred disease risk for men and women jointly, including rs1801020 in coagulation factor XII (HR = 1.31 (1.08-1.60) for CVD, uncorrected p = 0.006 multiplicative model). Variant rs11673407 in the fucosyltransferase 3 gene was strongly associated with waist/hip ratio (uncorrected p = 0.00005) in joint analysis. In interaction analysis we found statistical evidence of variant-gender interaction conferring risk of CHD and CVD: rs3742264 in the carboxypeptidase B2 gene, p(interaction) = 0.009 for CHD, and rs2774279 in the upstream stimulatory factor 1 gene, p(interaction) = 0.007 for CHD and CVD, showed strong association in women but not in men, while rs2069840 in interleukin 6 gene, p(interaction) = 0.004 for CVD, showed strong association in men but not in women (uncorrected p-values). Also, two variants in the selenoprotein S gene conferred risk for ischemic stroke in women, p(interaction) = 0.003 and 0.007. Importantly, we identified a larger number of gender-specific effects for women than for men. CONCLUSIONS/SIGNIFICANCE: A false discovery rate analysis suggests that we may expect half of the reported findings for combined gender analysis to be true positives, while at least third of the reported genotype-gender interaction results are true positives. The asymmetry in positive findings between the genders could imply that genetic risk loci for CVD are more readily detectable in women, while for men they are more confounded by environmental/lifestyle risk factors. The possible differences in genetic risk profiles between the genders should be addressed in more detail in genetic studies of CVD, and more focus on female CVD risk is also warranted in genome-wide association studies.


Asunto(s)
Enfermedades Cardiovasculares/genética , Perfilación de la Expresión Génica , Predisposición Genética a la Enfermedad , Caracteres Sexuales , Adulto , Anciano , Enfermedades Cardiovasculares/epidemiología , Estudios de Casos y Controles , Estudios de Cohortes , Femenino , Humanos , Masculino , Persona de Mediana Edad , Polimorfismo de Nucleótido Simple , Prevalencia , Factores de Riesgo
19.
PLoS Genet ; 3(7): e120, 2007 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-17677000

RESUMEN

The genetic background of complex diseases is proposed to consist of several low-penetrance risk loci. Addressing this complexity likely requires both large sample size and simultaneous analysis of different predisposing variants. We investigated the role of four thrombosis genes: coagulation factor V (F5), intercellular adhesion molecule 1 (ICAM1), protein C (PROC), and thrombomodulin (THBD) in cardiovascular diseases. Single allelic gene variants and their pair-wise combinations were analyzed in two independently sampled population cohorts from Finland. From among 14,140 FINRISK participants (FINRISK-92, n = 5,999 and FINRISK-97, n = 8,141), we selected for genotyping a sample of 2,222, including 528 incident cardiovascular disease (CVD) cases and random subcohorts totaling 786. To cover all known common haplotypes (>10%), 54 single nucleotide polymorphisms (SNPs) were genotyped. Classification-tree analysis identified 11 SNPs that were further analyzed in Cox's proportional hazard model as single variants and pair-wise combinations. Multiple testing was controlled by use of two independent cohorts and with false-discovery rate. Several CVD risk variants were identified: In women, the combination of F5 rs7542281 x THBD rs1042580, together with three single F5 SNPs, was associated with CVD events. Among men, PROC rs1041296, when combined with either ICAM1 rs5030341 or F5 rs2269648, was associated with total mortality. As a single variant, PROC rs1401296, together with the F5 Leiden mutation, was associated with ischemic stroke events. Our strategy to combine the classification-tree analysis with more traditional genetic models was successful in identifying SNPs-acting either in combination or as single variants--predisposing to CVD, and produced consistent results in two independent cohorts. These results suggest that variants in these four thrombosis genes contribute to arterial cardiovascular events at population level.


Asunto(s)
Enfermedades Cardiovasculares/genética , Enfermedades Cardiovasculares/patología , Regulación de la Expresión Génica , Trombosis/genética , Enfermedades Cardiovasculares/diagnóstico , Estudios de Cohortes , Femenino , Variación Genética , Haplotipos , Humanos , Masculino , Modelos Genéticos , Polimorfismo de Nucleótido Simple , Modelos de Riesgos Proporcionales , Riesgo , Factores Sexuales
20.
Hum Genet ; 122(3-4): 355-65, 2007 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-17641917

RESUMEN

Selenoprotein S (SEPS1) is a novel candidate gene involved in the regulation of inflammatory response and protection from oxidative damage. This study explored the genetic variation in the SEPS1 locus for an association with CVD as well as with quantitative phenotypes related to obesity and inflammation. We used the case-cohort design and time-to-event analysis in two separate prospectively followed population-based cohorts FINRISK 92 and 97 (n = 999 and 1,223 individuals, respectively) to study the associations of five single nucleotide polymorphisms with the risk for coronary heart disease (CHD) and ischemic stroke events. We found a significant association with increased CHD risk in females carrying the minor allele of rs8025174 in the combined analysis of both cohorts [hazard ratio (HR) 2.95 (95% confidence interval: 1.37-6.39)]. Another variant, rs7178239, increased the risk for ischemic stroke significantly in females [HR: 3.35 (1.66-6.76)] and in joint analysis of both sexes and both cohorts [HR: 1.75 (1.17-2.64)]. These results indicate that variation in the SEPS1 locus may have an effect on CVD morbidity, especially in females. This observation should stimulate further investigations of the role of this gene and protein in the pathogenesis of CVD.


Asunto(s)
Enfermedad Coronaria/genética , Proteínas de la Membrana/genética , Polimorfismo de Nucleótido Simple , Selenoproteínas/genética , Accidente Cerebrovascular/genética , Anciano , Alelos , Estudios de Cohortes , Femenino , Finlandia , Variación Genética , Haplotipos , Humanos , Desequilibrio de Ligamiento , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Factores de Riesgo , Factores Sexuales
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