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1.
Headache ; 63(5): 642-651, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-36705326

RESUMO

OBJECTIVE: To assess whether migraine may be genetically and/or causally associated with inflammatory bowel disease (IBD) or celiac disease. BACKGROUND: Migraine has been linked to IBD and celiac disease in observational studies, but whether this link may be explained by a shared genetic basis or could be causal has not been established. The presence of a causal association could be clinically relevant, as treating one of these medical conditions might mitigate the symptoms of a causally linked condition. METHODS: Linkage disequilibrium score regression and two-sample bidirectional Mendelian randomization analyses were performed using summary statistics from cohort-based genome-wide association studies of migraine (59,674 cases; 316,078 controls), IBD (25,042 cases; 34,915 controls) and celiac disease (11,812 or 4533 cases; 11,837 or 10,750 controls). Migraine with and without aura were analyzed separately, as were the two IBD subtypes Crohn's disease and ulcerative colitis. Positive control analyses and conventional Mendelian randomization sensitivity analyses were performed. RESULTS: Migraine was not genetically correlated with IBD or celiac disease. No evidence was observed for IBD (odds ratio [OR] 1.00, 95% confidence interval [CI] 0.99-1.02, p = 0.703) or celiac disease (OR 1.00, 95% CI 0.99-1.02, p = 0.912) causing migraine or migraine causing either IBD (OR 1.08, 95% CI 0.96-1.22, p = 0.181) or celiac disease (OR 1.08, 95% CI 0.79-1.48, p = 0.614) when all participants with migraine were analyzed jointly. There was some indication of a causal association between celiac disease and migraine with aura (OR 1.04, 95% CI 1.00-1.08, p = 0.045), between celiac disease and migraine without aura (OR 0.95, 95% CI 0.92-0.99, p = 0.006), as well as between migraine without aura and ulcerative colitis (OR 1.15, 95% CI 1.02-1.29, p = 0.025). However, the results were not significant after multiple testing correction. CONCLUSIONS: We found no evidence of a shared genetic basis or of a causal association between migraine and either IBD or celiac disease, although we obtained some indications of causal associations with migraine subtypes.


Assuntos
Doença Celíaca , Colite Ulcerativa , Epilepsia , Doenças Inflamatórias Intestinais , Enxaqueca sem Aura , Humanos , Colite Ulcerativa/epidemiologia , Colite Ulcerativa/genética , Colite Ulcerativa/complicações , Doença Celíaca/complicações , Doença Celíaca/epidemiologia , Doença Celíaca/genética , Estudo de Associação Genômica Ampla , Análise da Randomização Mendeliana , Enxaqueca sem Aura/complicações , Doenças Inflamatórias Intestinais/epidemiologia , Doenças Inflamatórias Intestinais/genética
2.
Hum Mol Genet ; 28(23): 4022-4041, 2019 12 01.
Artigo em Inglês | MEDLINE | ID: mdl-31361310

RESUMO

Even though heritability estimates suggest that the risk of asthma, hay fever and eczema is largely due to genetic factors, previous studies have not explained a large part of the genetics behind these diseases. In this genome-wide association study, we include 346 545 Caucasians from the UK Biobank to identify novel loci for asthma, hay fever and eczema and replicate novel loci in three independent cohorts. We further investigate if associated lead single nucleotide polymorphisms (SNPs) have a significantly larger effect for one disease compared to the other diseases, to highlight possible disease-specific effects. We identified 141 loci, of which 41 are novel, to be associated (P ≤ 3 × 10-8) with asthma, hay fever or eczema, analyzed separately or as disease phenotypes that includes the presence of different combinations of these diseases. The largest number of loci was associated with the combined phenotype (asthma/hay fever/eczema). However, as many as 20 loci had a significantly larger effect on hay fever/eczema only compared to their effects on asthma, while 26 loci exhibited larger effects on asthma compared with their effects on hay fever/eczema. At four of the novel loci, TNFRSF8, MYRF, TSPAN8, and BHMG1, the lead SNPs were in Linkage Disequilibrium (LD) (>0.8) with potentially casual missense variants. Our study shows that a large amount of the genetic contribution is shared between the diseases. Nonetheless, a number of SNPs have a significantly larger effect on one of the phenotypes, suggesting that part of the genetic contribution is more phenotype specific.


Assuntos
Asma/genética , Eczema/genética , Estudo de Associação Genômica Ampla/métodos , Polimorfismo de Nucleotídeo Único , Rinite Alérgica Sazonal/genética , População Branca/genética , Adulto , Idoso , Asma/etnologia , Bancos de Espécimes Biológicos , Eczema/etnologia , Feminino , Predisposição Genética para Doença , Humanos , Antígeno Ki-1/genética , Desequilíbrio de Ligação , Masculino , Proteínas de Membrana/genética , Pessoa de Meia-Idade , Fenótipo , Rinite Alérgica Sazonal/etnologia , Tetraspaninas/genética , Fatores de Transcrição/genética , Reino Unido/etnologia
3.
BMC Med ; 19(1): 302, 2021 12 01.
Artigo em Inglês | MEDLINE | ID: mdl-34847940

RESUMO

BACKGROUND: Sensorineural hearing loss is one of the most common sensory deficiencies. However, the molecular contribution to age-related hearing loss is not fully elucidated. METHODS: We performed genome-wide association studies (GWAS) for hearing loss-related traits in the UK Biobank (N = 362,396) and selected a high confidence set of ten hearing-associated gene products for staining in human cochlear samples: EYA4, LMX1A, PTK2/FAK, UBE3B, MMP2, SYNJ2, GRM5, TRIOBP, LMO-7, and NOX4. RESULTS: All proteins were found to be expressed in human cochlear structures. Our findings illustrate cochlear structures that mediate mechano-electric transduction of auditory stimuli, neuronal conductance, and neuronal plasticity to be involved in age-related hearing loss. CONCLUSIONS: Our results suggest common genetic variation to influence structural resilience to damage as well as cochlear recovery after trauma, which protect against accumulated damage to cochlear structures and the development of hearing loss over time.


Assuntos
Perda Auditiva Neurossensorial , Perda Auditiva , Cóclea , Estudo de Associação Genômica Ampla , Perda Auditiva/genética , Humanos , Fenótipo , Transativadores/genética , Ubiquitina-Proteína Ligases
4.
Hum Mol Genet ; 27(5): 799-810, 2018 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-29325024

RESUMO

Most genetic studies identify genetic variants associated with disease risk or with the mean value of a quantitative trait. More rarely, genetic variants associated with variance heterogeneity are considered. In this study, we have identified such variance single-nucleotide polymorphisms (vSNPs) and examined if these represent biological gene × gene or gene × environment interactions or statistical artifacts caused by multiple linked genetic variants influencing the same phenotype. We have performed a genome-wide study, to identify vSNPs associated with variance heterogeneity in DNA methylation levels. Genotype data from over 10 million single-nucleotide polymorphisms (SNPs), and DNA methylation levels at over 430 000 CpG sites, were analyzed in 729 individuals. We identified vSNPs for 7195 CpG sites (P < 9.4 × 10-11). This is a relatively low number compared to 52 335 CpG sites for which SNPs were associated with mean DNA methylation levels. We further showed that variance heterogeneity between genotypes mainly represents additional, often rare, SNPs in linkage disequilibrium (LD) with the respective vSNP and for some vSNPs, multiple low frequency variants co-segregating with one of the vSNP alleles. Therefore, our results suggest that variance heterogeneity of DNA methylation mainly represents phenotypic effects by multiple SNPs, rather than biological interactions. Such effects may also be important for interpreting variance heterogeneity of more complex clinical phenotypes.


Assuntos
Metilação de DNA , Interação Gene-Ambiente , Polimorfismo de Nucleotídeo Único , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos de Coortes , Ilhas de CpG , Feminino , Genoma Humano , Estudo de Associação Genômica Ampla/métodos , Humanos , Desequilíbrio de Ligação , Masculino , Pessoa de Meia-Idade , Suécia
5.
PLoS Genet ; 13(9): e1006977, 2017 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-28873402

RESUMO

Previous genome-wide association studies (GWAS) have identified hundreds of genetic loci to be associated with body mass index (BMI) and risk of obesity. Genetic effects can differ between individuals depending on lifestyle or environmental factors due to gene-environment interactions. In this study, we examine gene-environment interactions in 362,496 unrelated participants with Caucasian ancestry from the UK Biobank resource. A total of 94 BMI-associated SNPs, selected from a previous GWAS on BMI, were used to construct weighted genetic scores for BMI (GSBMI). Linear regression modeling was used to estimate the effect of gene-environment interactions on BMI for 131 lifestyle factors related to: dietary habits, smoking and alcohol consumption, physical activity, socioeconomic status, mental health, sleeping patterns, as well as female-specific factors such as menopause and childbirth. In total, 15 lifestyle factors were observed to interact with GSBMI, of which alcohol intake frequency, usual walking pace, and Townsend deprivation index, a measure of socioeconomic status, were all highly significant (p = 1.45*10-29, p = 3.83*10-26, p = 4.66*10-11, respectively). Interestingly, the frequency of alcohol consumption, rather than the total weekly amount resulted in a significant interaction. The FTO locus was the strongest single locus interacting with any of the lifestyle factors. However, 13 significant interactions were also observed after omitting the FTO locus from the genetic score. Our analyses indicate that many lifestyle factors modify the genetic effects on BMI with some groups of individuals having more than double the effect of the genetic score. However, the underlying causal mechanisms of gene-environmental interactions are difficult to deduce from cross-sectional data alone and controlled experiments are required to fully characterise the causal factors.


Assuntos
Índice de Massa Corporal , Interação Gene-Ambiente , Predisposição Genética para Doença , Obesidade/genética , Idoso , Consumo de Bebidas Alcoólicas/genética , Exercício Físico , Feminino , Estudo de Associação Genômica Ampla , Humanos , Masculino , Pessoa de Meia-Idade , Obesidade/fisiopatologia , Polimorfismo de Nucleotídeo Único , Fatores de Risco , Fumar , Classe Social , População Branca
6.
PLoS Genet ; 13(9): e1007005, 2017 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-28915241

RESUMO

Associations between epigenetic alterations and disease status have been identified for many diseases. However, there is no strong evidence that epigenetic alterations are directly causal for disease pathogenesis. In this study, we combined SNP and DNA methylation data with measurements of protein biomarkers for cancer, inflammation or cardiovascular disease, to investigate the relative contribution of genetic and epigenetic variation on biomarker levels. A total of 121 protein biomarkers were measured and analyzed in relation to DNA methylation at 470,000 genomic positions and to over 10 million SNPs. We performed epigenome-wide association study (EWAS) and genome-wide association study (GWAS) analyses, and integrated biomarker, DNA methylation and SNP data using between 698 and 1033 samples depending on data availability for the different analyses. We identified 124 and 45 loci (Bonferroni adjusted P < 0.05) with effect sizes up to 0.22 standard units' change per 1% change in DNA methylation levels and up to four standard units' change per copy of the effective allele in the EWAS and GWAS respectively. Most GWAS loci were cis-regulatory whereas most EWAS loci were located in trans. Eleven EWAS loci were associated with multiple biomarkers, including one in NLRC5 associated with CXCL11, CXCL9, IL-12, and IL-18 levels. All EWAS signals that overlapped with a GWAS locus were driven by underlying genetic variants and three EWAS signals were confounded by smoking. While some cis-regulatory SNPs for biomarkers appeared to have an effect also on DNA methylation levels, cis-regulatory SNPs for DNA methylation were not observed to affect biomarker levels. We present associations between protein biomarker and DNA methylation levels at numerous loci in the genome. The associations are likely to reflect the underlying pattern of genetic variants, specific environmental exposures, or represent secondary effects to the pathogenesis of disease.


Assuntos
Biomarcadores , Metilação de DNA/genética , Epigênese Genética/genética , Locos de Características Quantitativas/genética , Ilhas de CpG/genética , Genoma Humano , Estudo de Associação Genômica Ampla , Humanos , Polimorfismo de Nucleotídeo Único , Sequências Reguladoras de Ácido Nucleico
7.
Hum Mol Genet ; 26(16): 3221-3231, 2017 08 15.
Artigo em Inglês | MEDLINE | ID: mdl-28535255

RESUMO

Lifestyle factors, such as food choices and exposure to chemicals, can alter DNA methylation and lead to changes in gene activity. Two such exposures with pharmacologically active components are coffee and tea consumption. Both coffee and tea have been suggested to play an important role in modulating disease-risk in humans by suppressing tumour progression, decreasing inflammation and influencing estrogen metabolism. These mechanisms may be mediated by changes in DNA methylation. To investigate if DNA methylation in blood is associated with coffee and tea consumption, we performed a genome-wide DNA methylation study for coffee and tea consumption in four European cohorts (N = 3,096). DNA methylation was measured from whole blood at 421,695 CpG sites distributed throughout the genome and analysed in men and women both separately and together in each cohort. Meta-analyses of the results and additional regional-level analyses were performed. After adjusting for multiple testing, the meta-analysis revealed that two individual CpG-sites, mapping to DNAJC16 and TTC17, were differentially methylated in relation to tea consumption in women. No individual sites were associated with men or with the sex-combined analysis for tea or coffee. The regional analysis revealed that 28 regions were differentially methylated in relation to tea consumption in women. These regions contained genes known to interact with estradiol metabolism and cancer. No significant regions were found in the sex-combined and male-only analysis for either tea or coffee consumption.


Assuntos
Café , Metilação de DNA , Chá , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Cafeína/administração & dosagem , Cafeína/sangue , Estudos de Coortes , DNA/sangue , Estradiol/sangue , Etnicidade/genética , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Fatores de Risco , População Branca/genética
8.
Hum Mol Genet ; 25(21): 4739-4748, 2016 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-28172975

RESUMO

Cardiovascular diseases (CVDs) are the leading causes of death worldwide and represent a substantial economic burden on public health care systems. Epigenetic markers have potential as diagnostic markers before clinical symptoms have emerged, and as prognostic markers to inform the choice of clinical intervention. In this study, we performed an epigenome-wide association study (EWAS) for CVDs, to identify disease-specific alterations in DNA methylation. CpG methylation in blood samples from the northern Sweden population health study (NSPHS) (n = 729) was assayed on the Illumina Infinium HumanMethylation450 BeadChip. Individuals with a history of a CVD were identified in the cohort. It included individuals with hypertension (N = 147), myocardial infarction (MI) (N = 48), stroke (N = 27), thrombosis (N = 22) and cardiac arrhythmia (N = 5). Differential DNA methylation was observed at 211 CpG-sites in individuals with a history of MI (q <0.05). These sites represent 196 genes, of which 42 have been described in the scientific literature to be related to cardiac function, cardiovascular disease, cardiogenesis and recovery after ischemic injury. We have shown that individuals with a history of MI have a deviating pattern of DNA methylation at many genomic loci of which a large fraction has previously been linked to CVD. Our results highlight genes that might be important in the pathogenesis of MI or in recovery. In addition, the sites pointed out in this study can serve as candidates for further evaluation as potential biomarkers for MI.


Assuntos
Doenças Cardiovasculares/genética , Infarto do Miocárdio/genética , Biomarcadores/sangue , Estudos de Coortes , Ilhas de CpG/genética , Metilação de DNA/genética , Epigênese Genética/genética , Epigenômica/métodos , Feminino , Genoma Humano/genética , Estudo de Associação Genômica Ampla , Humanos , Hipertensão/genética , Masculino , Infarto do Miocárdio/sangue , Suécia
9.
Artigo em Inglês | MEDLINE | ID: mdl-24016212

RESUMO

The largest innovations within pharmaceutical development come through new compounds that have unique and novel modes of action. These innovations commonly involve expanding the protein space targeted by pharmaceutical agents. At present, information about drugs and drug targets is available online via public databases such as DrugBank and the Therapeutic Targets Database. However, this information is biased, understandably so, toward established drugs and drug-target interactions. To gain a better overview of the drug-targeted portion of the human proteome and the directions of current drug development, we developed a data set of clinical trial drug-target interactions based on CenterWatch's Drugs in Clinical Trials Database, one of the largest databases of its kind. Our curation identified 475 potentially novel clinical trial drug targets. This review aims to identify trends in drug development based on the potentially novel targets currently being explored in clinical trials.


Assuntos
Genoma Humano , Terapia de Alvo Molecular , Doença de Alzheimer/tratamento farmacológico , Anti-Inflamatórios/farmacologia , Antineoplásicos/farmacologia , Regulação do Apetite/efeitos dos fármacos , Ensaios Clínicos como Assunto , Bases de Dados Factuais , Estudos de Avaliação como Assunto , Quinases de Receptores Acoplados a Proteína G/genética , Quinases de Receptores Acoplados a Proteína G/metabolismo , Humanos , Hipoglicemiantes/farmacologia , Proteoma/metabolismo
10.
Nord J Psychiatry ; 71(3): 188-196, 2017 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-27844498

RESUMO

BACKGROUND: Adults with eating disorders (ED) show brain volume reductions in the frontal, insular, cingulate, and parietal cortices, as well as differences in subcortical regions associated with reward processing. However, little is known about the structural differences in adolescents with behavioural indications of early stage ED. AIM: This is the first study to investigate structural brain changes in adolescents newly diagnosed with ED compared to healthy controls (HC), and to study whether ED cognitions correlate with structural changes in adolescents with ED of short duration. METHODS: Fifteen adolescent females recently diagnosed with ED, and 28 age-matched HC individuals, were scanned with structural magnetic resonance imaging (MRI). Whole-brain and region-of-interest analyses were conducted using voxel-based morphometry (VBM). ED cognitions were measured with self-report questionnaires and working memory performance was measured with a neuropsychological computerized test. RESULTS AND CONCLUSIONS: The left superior temporal gyrus had a smaller volume in adolescents with ED than in HC, which correlated with ED cognitions (concerns about eating, weight, and shape). Working memory reaction time correlated positively with insula volumes in ED participants, but not HC. In ED, measurements of restraint and obsession was negatively correlated with temporal gyrus volumes, and positively correlated with cerebellar and striatal volumes. Thus, adolescents with a recent diagnosis of ED had volumetric variations in brain areas linked to ED cognitions, obsessions, and working memory. The findings emphasize the importance of early identification of illness, before potential long-term effects on structure and behaviour occur.


Assuntos
Cerebelo/diagnóstico por imagem , Córtex Cerebral/diagnóstico por imagem , Corpo Estriado/diagnóstico por imagem , Transtornos da Alimentação e da Ingestão de Alimentos/diagnóstico por imagem , Transtornos da Alimentação e da Ingestão de Alimentos/fisiopatologia , Adolescente , Encéfalo , Feminino , Humanos , Imageamento por Ressonância Magnética
11.
Hum Genet ; 134(11-12): 1183-93, 2015 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-26340902

RESUMO

Single nucleotide polymorphisms (SNPs) within a genetic region including the first two introns of the gene encoding FTO have consistently been shown to be the strongest genetic factors influencing body mass index (BMI). However, this same also contains several regulatory DNA elements that affect the expression of IRX3 and IRX5, which respectively, are located approximately 500 kb and 1.2 Mbp downstream from the BMI-associated FTO locus. Through these affected regulatory elements, genetic variation at the FTO locus influences adipocyte development leading to decreased thermogenesis and increased lipid storage. These findings provide a genomic model for the functional implications of genetic variations at this locus, and also demonstrate the importance of accounting for chromatin-chromatin interactions when constructing hypotheses for the mechanisms of trait and disease-associated common genetic variants. Several consortia have generated genome-wide datasets describing different aspects of chromatin biology which can be utilized to predict functionality and propose biologically relevant descriptions of specific DNA regions. Here, we review some of the publically available data resources on genome function and organization that can be used to gain an overview of genetic regions of interest and to generate testable hypotheses for future studies. We use the BMI- and obesity-associated FTO locus as a subject as it poses an illustrative example on the value of these resources. We find that public databases strongly support long-range interactions between regulatory elements in the FTO locus with the IRXB cluster genes IRX3 and IRX5. Chromatin configuration capture data also support interactions across a large region stretching across from the RPGRIP1L gene, FTO and the IRXB gene cluster.


Assuntos
Regulação da Expressão Gênica , Loci Gênicos , Proteínas/genética , Elementos Reguladores de Transcrição , Dioxigenase FTO Dependente de alfa-Cetoglutarato , Índice de Massa Corporal , Estudo de Associação Genômica Ampla , Proteínas de Homeodomínio/genética , Humanos , Obesidade/genética , Polimorfismo de Nucleotídeo Único , Elementos Reguladores de Transcrição/genética , Fatores de Transcrição/genética
12.
Mol Genet Genomics ; 290(4): 1485-91, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-25711307

RESUMO

Genome-wide association studies (GWAS) have identified common genetic factors influencing body mass as well as body adiposity. The functional implications of these loci are currently under investigation. Intense scrutiny of the body mass-associated FTO locus revealed age-specific effects, or a weakened effect in elderly populations. In this study, we aimed to determine the effects of single nucleotide polymorphisms (SNPs) representing 35 GWAS-identified body mass- and adiposity-associated genetic loci. In our analysis, 949 participants of the Prospective Investigation of the Vasculature in Uppsala Seniors cohort were included. All participants were born between 1920 and 1924. Data were available for 474 male and 475 female participants at age 70 and 380 male and 390 female participants at age 75. Genetic associations with BMI and change in BMI from age 70 to 75 were analyzed. In our analysis, rs10968576, an intronic SNP within the LINGO2 (LERN3, LRRN6C) gene, was associated with body mass in a cross section of elderly Swedes at age 70. This is the first study to replicate the association of a LINGO2-related genetic variant with body mass in an independent cohort of elderly citizens.


Assuntos
Adiposidade/genética , Índice de Massa Corporal , Polimorfismo de Nucleotídeo Único , Idoso , Idoso de 80 Anos ou mais , Feminino , Frequência do Gene , Genótipo , Humanos , Íntrons/genética , Desequilíbrio de Ligação , Masculino , Estudos Prospectivos , Suécia
13.
Genet Res (Camb) ; 97: e16, 2015 Sep 14.
Artigo em Inglês | MEDLINE | ID: mdl-26365393

RESUMO

Genome-wide association studies (GWAS) have revealed association of a locus approximately 25b downstream of the TMEM18 gene with body mass and obesity. We utilized targeted re-sequencing of the body mass associated locus in proximity of TMEM18 in a case-control population of severely obese children and adolescents from the Stockholm area. We expanded our study to include the TMEM18 gene itself, with the aim of identifying body mass associated genetic variants. Sequencing was performed on the SOLiD platform, on long-range PCR fragments generated through targeted amplification of the regions of interest. Candidate single nucleotide polymorphisms (SNPs) were validated by TaqMan genotyping. We were able to observe 131 SNPs across the re-sequenced regions. Chi squared tests comparing the allele frequencies between cases and controls revealed 57 SNPs as candidates for association with obesity. Validation and replication genotyping revealed robust associations for SNPs within the haplotype block region located downstream from the TMEM18 gene. This study provides a high resolution map of the genetic variation pattern in the TMEM18 gene, as well as the associated haplotype block, and further strengthens the association of variants within the proximal haplotype block with obesity and body mass.


Assuntos
Predisposição Genética para Doença/genética , Sequenciamento de Nucleotídeos em Larga Escala/métodos , Proteínas de Membrana/genética , Obesidade Infantil/genética , Polimorfismo de Nucleotídeo Único , Adolescente , Estudos de Casos e Controles , Criança , Estudos de Coortes , Feminino , Frequência do Gene , Genótipo , Técnicas de Genotipagem/métodos , Haplótipos , Humanos , Desequilíbrio de Ligação , Masculino
15.
Arthritis Rheumatol ; 75(11): 2027-2035, 2023 11.
Artigo em Inglês | MEDLINE | ID: mdl-37219954

RESUMO

OBJECTIVE: Although the association between obesity and risk of rheumatic disease is well established, the precise causal relation has not been conclusively proven. Here, we estimate the causal effect of body mass index (BMI) on the risk of developing 5 different rheumatic diseases. METHODS: Linear and nonlinear mendelian randomization (MR) were used to estimate the effect of BMI on risk of rheumatic disease, and sex-specific effects were identified. Analyses were performed in 361,952 participants from the UK Biobank cohort for 5 rheumatic diseases: rheumatoid arthritis (n = 8,381 cases), osteoarthritis (n = 87,430), psoriatic arthropathy (n = 933), gout (n = 13,638), and inflammatory spondylitis (n = 4,328). RESULTS: Using linear MR, we found that 1 SD increase in BMI increases the incidence rate for rheumatoid arthritis (incidence rate ratio [IRR] 1.52 [95% confidence interval (95% CI) 1.36-1.69]), osteoarthritis (IRR 1.49 [95% CI 1.43-1.55]), psoriatic arthropathy (IRR 1.80 [95% CI 1.31-2.48]), gout (IRR 1.73 [95% CI 1.56-1.92]), and inflammatory spondylitis (IRR 1.34 [95% CI 1.14-1.57]) in all individuals. BMI was found to be a stronger risk factor in women compared to men for psoriatic arthropathy (P for sex interaction = 3.3 × 10-4 ) and gout (P for sex interaction = 4.3 × 10-3 ), and the effect on osteoarthritis was stronger in premenopausal compared to postmenopausal women (P = 1.8 × 10-3 ). Nonlinear effects of BMI were identified for osteoarthritis and gout in men, and for gout in women. The nonlinearity for gout was also more extreme in men compared to women (P = 0.03). CONCLUSION: Higher BMI causes an increased risk for rheumatic disease, an effect that is more pronounced in women for both gout and psoriatic arthropathy. The novel sex- and BMI-specific causal effects identified here provide further insight into rheumatic disease etiology and mark an important step toward personalized medicine.


Assuntos
Artrite Psoriásica , Artrite Reumatoide , Gota , Osteoartrite , Doenças Reumáticas , Masculino , Humanos , Feminino , Índice de Massa Corporal , Artrite Psoriásica/epidemiologia , Artrite Psoriásica/genética , Análise da Randomização Mendeliana , Doenças Reumáticas/epidemiologia , Doenças Reumáticas/genética , Artrite Reumatoide/epidemiologia , Artrite Reumatoide/genética , Gota/epidemiologia , Gota/genética , Osteoartrite/epidemiologia , Osteoartrite/genética
16.
Cancer Cell ; 41(6): 1186-1197.e4, 2023 06 12.
Artigo em Inglês | MEDLINE | ID: mdl-37311415

RESUMO

Obesity is associated with several types of cancer and fat distribution, which differs dramatically between sexes, has been suggested to be an independent risk factor. However, sex-specific effects on cancer risk have rarely been studied. Here we estimate the effects of fat accumulation and distribution on cancer risk in females and males. We performed a prospective study in 442,519 UK Biobank participants, for 19 cancer types and additional histological subtypes, with a mean follow-up time of 13.4 years. Cox proportional hazard models were used to estimate the effect of 14 different adiposity phenotypes on cancer rates, and a 5% false discovery rate was considered statistically significant. Adiposity-related traits are associated with all but three cancer types, and fat accumulation is associated with a larger number of cancers compared to fat distribution. In addition, fat accumulation or distribution exhibit differential effects between sexes on colorectal, esophageal, and liver cancer.


Assuntos
Adiposidade , Neoplasias Hepáticas , Feminino , Masculino , Humanos , Estudos Prospectivos , Obesidade/complicações , Obesidade/epidemiologia , Fatores de Risco
17.
Nat Commun ; 14(1): 1281, 2023 03 14.
Artigo em Inglês | MEDLINE | ID: mdl-36918566

RESUMO

Advanced psychiatric treatments remain uncertain in preventing suicide among adolescents. Across the 21 Swedish regions, using nationwide registers between 2016-2020, we found negative correlation between adolescent excess suicide mortality (AESM) and regional frequencies of clozapine, ECT, and lithium (CEL) usage among adolescents (ß = -0.613, p = 0.0003, 95% CI: -0.338, -0.889) and males (ß = -0.404, p = 0.009, 95% CI: -0.130, -0.678). No correlation was found among females (p = 0.197). Highest CEL usage among male adolescents was seen in regions with lowest quartile (Q1) AESM (W = 74, p = 0.012). Regional CEL treatment frequency in 15-19-year-olds was related to lower AESM in males, reflecting potential treatment efficacy, treatment compliance or better-quality mental health care. Suicide prevention may benefit from early recognition and CEL treatment for severe mental illness in male adolescents. The results indicate association but further research, using independent samples and both prospective and observational methodologies, is needed to confirm causality.


Assuntos
Clozapina , Transtornos Mentais , Suicídio , Feminino , Humanos , Adolescente , Masculino , Clozapina/uso terapêutico , Lítio , Estudos Prospectivos , Suicídio/psicologia
18.
Genetics ; 225(4)2023 Dec 06.
Artigo em Inglês | MEDLINE | ID: mdl-37793096

RESUMO

Structural variations, including copy number variations (CNVs), affect around 20 million bases in the human genome and are common causes of rare conditions. CNVs are rarely investigated in complex disease research because most CNVs are not targeted on the genotyping arrays or the reference panels for genetic imputation. In this study, we characterize CNVs in a Swedish cohort (N = 1,021) using short-read whole-genome sequencing (WGS) and use long-read WGS for validation in a subcohort (N = 15), and explore their effect on 438 plasma proteins. We detected 184,182 polymorphic CNVs and identified 15 CNVs to be associated with 16 proteins (P < 8.22×10-10). Of these, 5 CNVs could be perfectly validated using long-read sequencing, including a CNV which was associated with measurements of the osteoclast-associated immunoglobulin-like receptor (OSCAR) and located upstream of OSCAR, a gene important for bone health. Two other CNVs were identified to be clusters of many short repetitive elements and another represented a complex rearrangement including an inversion. Our findings provide insights into the structure of common CNVs and their effects on the plasma proteome, and highlights the importance of investigating common CNVs, also in relation to complex diseases.


Assuntos
Variações do Número de Cópias de DNA , Proteoma , Humanos , Proteoma/genética , Sequenciamento Completo do Genoma , Genoma Humano
19.
Transl Psychiatry ; 13(1): 66, 2023 02 22.
Artigo em Inglês | MEDLINE | ID: mdl-36813766

RESUMO

Emotional unstable personality disorder (EUPD; previously borderline personality disorder, BPD) is associated with excess natural-cause mortality, comorbid medical conditions, poor health habits and stress related epigenomic alterations. Previous studies demonstrated that GrimAge - a state-of-the-art epigenetic age (EA) estimator - strongly predicts mortality risk and physiological dysregulation. Herein, we utilize the GrimAge algorithm to investigate whether women with EUPD and a history of recent suicide attempts exhibit EA acceleration (EAA) in comparison to healthy controls. Genome-wide methylation patterns were measured using the Illumina Infinum Methylation Epic BeadChip in whole blood from 97 EUPD patients and 32 healthy controls. The control group was significantly older (p < 0.0001) and reported lesser exposure to violent behavior in both youth and adulthood (p < 0.0001). Groups were otherwise comparable regarding gender, BMI, or tobacco usage (p > 0.05). EA estimator DNAmGrimAge exceeded chronological age by 8.8 and 2.3 years in the EUPD and control group, respectively. Similarly, EAA marker AgeAccelGrim was substantially higher in EUPD subjects when compared to controls, in both univariate and multivariate analyzes (p < 0.00001). Tobacco usage conferred substantial within-group effects on the EA-chronological age difference, i.e., 10.74 years (SD = 4.19) compared to 6.00 years (SD = 3.10) in the non-user EUPD group (p < 0.00001). Notably, past alcohol and substance abuse, use of psychotropic medications, global assessment of functioning, self-reported exposure to violent behavior in youth and adulthood, later completed suicide (N = 8) and age at first suicide attempt did not predict EAA in the EUPD group (p > 0.05). These results underscore the importance of addressing medical health conditions along with low-cost preventative interventions aimed at improving somatic health outcomes in EUPD, such as efforts to support cessation of tobacco use. The independency of GrimAge to other EA algorithms in this group of severely impaired EUPD patients, suggest it may have unique characteristics to evaluate risk of adverse health outcomes in context of psychiatric disorders.


Assuntos
Transtorno da Personalidade Borderline , Transtornos Relacionados ao Uso de Substâncias , Adolescente , Humanos , Feminino , Criança , Transtorno da Personalidade Borderline/tratamento farmacológico , Tentativa de Suicídio/psicologia , Epigenômica , Envelhecimento
20.
Autism Res ; 16(10): 1891-1902, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-37602645

RESUMO

Individuals with autism spectrum disorder (ASD) tend to experience lower well-being as demonstrated mostly for children and adolescents in epidemiological studies. A further investigation of inclusive well-being, in terms of five well-being spectrum (5-WBS) traits including neuroticism, depression, loneliness, life satisfaction, and positive affect, among adults with ASD may deepen our understanding of their well-being, and lead to the possibility to further modify societal supportive mechanisms for individuals with ASD. This study aims to investigate if a genetic predisposition for ASD is associated with 5-WBS traits using polygenic risk score (PRS) analysis. PRS for ASD were calculated based on the latest genome-wide association study of ASD by the Psychiatric Genetics Consortium (18,381 cases, 27,969 controls) and were created in the independent cohort UK Biobank. Regression analyses were performed to investigate the association between ASD PRS and 5-WBS traits in the UK Biobank population including 337,423 individuals. ASD PRS were significantly associated with all 5-WBS traits, showing a positive association with the negative WBS traits, neuroticism (max R2 = 0.04%, p < 1 × 10-4 ), depression (max R2 = 0.06%, p < 1 × 10-4 ), loneliness (max R2 = 0.04%, p < 1 × 10-4 ), and a negative association with the positive WBS traits, life satisfaction (max R2 = 0.08%, p < 1 × 10-4 ), positive affect (max R2 = 0.10%, p < 1 × 10-4 ). The findings suggest that adults carrying a high load of risk single nucleotide peptides (SNPs) for ASD are more likely to report decreased well-being. The study demonstrates a considerable connection between susceptibility to ASD, its underlying genetic etiology and well-being.


Assuntos
Transtorno do Espectro Autista , Transtorno Autístico , Adulto , Criança , Adolescente , Humanos , Transtorno do Espectro Autista/complicações , Transtorno Autístico/complicações , Estudo de Associação Genômica Ampla , Fenótipo , Predisposição Genética para Doença/genética , Estratificação de Risco Genético
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