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1.
Phys Rev Lett ; 125(26): 262301, 2020 Dec 31.
Artigo em Inglês | MEDLINE | ID: mdl-33449792

RESUMO

Flow coefficients v_{n} of the orders n=1-6 are measured with the High-Acceptance DiElectron Spectrometer (HADES) at GSI for protons, deuterons, and tritons as a function of centrality, transverse momentum, and rapidity in Au+Au collisions at sqrt[s_{NN}]=2.4 GeV. Combining the information from the flow coefficients of all orders allows us to construct for the first time, at collision energies of a few GeV, a multidifferential picture of the angular emission pattern of these particles. It reflects the complicated interplay between the effect of the central fireball pressure on the emission of particles and their subsequent interaction with spectator matter. The high precision information on higher order flow coefficients is a major step forward in constraining the equation of state of dense baryonic matter.

2.
Phys Rev Lett ; 123(2): 022002, 2019 Jul 12.
Artigo em Inglês | MEDLINE | ID: mdl-31386541

RESUMO

We present the first observation of K^{-} and ϕ absorption within nuclear matter by means of π^{-}-induced reactions on C and W targets at an incident beam momentum of 1.7 GeV/c studied with HADES at SIS18/GSI. The double ratio (K^{-}/K^{+})_{W}/(K^{-}/K^{+})_{C} is found to be 0.319±0.009(stat)_{-0.012}^{+0.014}(syst) indicating a larger absorption of K^{-} in heavier targets as compared to lighter ones. The measured ϕ/K^{-} ratios in π^{-}+C and π^{-}+W reactions within the HADES acceptance are found to be equal to 0.55±0.04(stat)_{-0.07}^{+0.06}(syst) and to 0.63±0.06(stat)_{-0.11}^{+0.11}(syst), respectively. The similar ratios measured in the two different reactions demonstrate for the first time experimentally that the dynamics of the ϕ meson in nuclear medium is strongly coupled to the K^{-} dynamics. The large difference in the ϕ production off C and W nuclei is discussed in terms of a strong ϕN in-medium coupling. These results are relevant for the description of heavy-ion collisions and the structure of neutron stars.

3.
Nutr Metab Cardiovasc Dis ; 28(3): 234-242, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-29337019

RESUMO

BACKGROUND AND AIMS: We investigated the associations of serum fasting (FG) and 2-h postload (2HG) glucose from an oral glucose tolerance test (OGTT), glycated hemoglobin (HbA1c), fasting insulin and the homeostasis model assessment-insulin resistance index (HOMA-IR) with urinary albumin-to-creatinine ratio (ACR) and estimated glomerular filtration rate (eGFR). METHODS AND RESULTS: We performed cross-sectional analyses of 2713 subjects (1429 women; 52.7%) without known type 2 diabetes, aged 31-82 years, from the KORA (Cooperative Health Research in the Augsburg Region) F4-Study. FG, 2HG, HbA1c, fasting insulin, HOMA-IR and glucose tolerance categories were analyzed for association with ACR and eGFR in multivariable adjusted linear and median regression models, and with isolated microalbuminuria (i-MA), isolated reduced kidney function (i-RKF) and chronic kidney disease (CKD, defined as MA and/or RKF) in multivariable adjusted logistic regression models. Among the 2713 study participants, 28% revealed prediabetes (isolated impaired fasting glucose [i-IFG], isolated glucose tolerance [i-IGT] or both by American Diabetes Association definition), 4.2% had unknown type 2 diabetes, 6.5% had i-MA, 3.1% i-RKF and 10.9% CKD. In multivariable adjusted analysis, all continuous variables (FG, 2HG, HbA1c, fasting insulin and HOMA-IR) were associated with i-MA, i-RKF and CKD. The odds ratios (ORs) for i-MA and CKD were 1.54 (95% confidence interval: 1.02-2.33) and 1.58 (1.10-2.25) for individuals with i-IFG. Moreover, the OR for i-RKF was 2.57 (1.31-5.06) for individuals with IFG + IGT. CONCLUSION: Our findings suggest that prediabetes might have harmful effects on the kidney.


Assuntos
Albuminúria/fisiopatologia , Taxa de Filtração Glomerular , Rim/fisiopatologia , Estado Pré-Diabético/fisiopatologia , Insuficiência Renal Crônica/fisiopatologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Albuminúria/diagnóstico , Albuminúria/epidemiologia , Biomarcadores/sangue , Biomarcadores/urina , Glicemia/metabolismo , Creatinina/urina , Estudos Transversais , Jejum/sangue , Feminino , Alemanha/epidemiologia , Teste de Tolerância a Glucose , Hemoglobinas Glicadas/metabolismo , Humanos , Insulina/sangue , Masculino , Pessoa de Meia-Idade , Estado Pré-Diabético/diagnóstico , Estado Pré-Diabético/epidemiologia , Prognóstico , Insuficiência Renal Crônica/diagnóstico , Insuficiência Renal Crônica/epidemiologia , Medição de Risco , Fatores de Risco , Fatores de Tempo
4.
Scand J Med Sci Sports ; 28(2): 604-612, 2018 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-28329413

RESUMO

The purpose of this study was to examine whether physical activity (PA) and muscular strength (MS) are related to polypharmacy. Our cross-sectional analysis was based on 711 patients with multimorbidity (MMB), aged 65-94 years, who participated in the KORA-Age study. Participants underwent a face-to-face interview and extensive physical examinations including anthropometric measurements, registration of chronic diseases, determination of health-related behaviors (smoking, alcohol intake, physical activity, etc.), collection of blood samples and measurement of hand-grip strength. PPha was defined as the use of >4 drugs and MMB as having ≥2 of 13 chronic diseases. Prevalence of PPha was 44.6% (n=317), and a significant difference was found in the number of drugs used between participants with and without PPha (7.2±2.1 vs 2.5±1.2, P<.001). Patients in the lower compared to the upper tertile of physical activity had a significantly increased odds to be on PPha (OR: 1.64, 95% CI: 1.05-2.56, P=.031) after controlling for age, gender, BMI, family status, education, alcohol intake, smoking habits, number of diseases, hs-CRP, and telomere length. On the contrary, no significant association between muscular strength and PPha was found (OR: 1.04, 95% CI: 0.66-1.63, P=.873) after multivariable adjustment. Among older persons with MMB, lower levels of physical activity, but not low muscular strength, are associated with higher odds of PPha. Increasing the levels of physical activity appears to be highly recommended in order to potentially reduce the risk of PPha among multimorbid persons aged 65 and older.


Assuntos
Exercício Físico , Multimorbidade , Força Muscular , Polimedicação , Idoso , Idoso de 80 Anos ou mais , Doença Crônica , Feminino , Alemanha , Humanos , Masculino
6.
Phys Rev Lett ; 114(21): 212301, 2015 May 29.
Artigo em Inglês | MEDLINE | ID: mdl-26066429

RESUMO

Results on the production of the double strange cascade hyperon Ξ^{-} are reported for collisions of p(3.5 GeV)+Nb, studied with the High Acceptance Di-Electron Spectrometer (HADES) at SIS18 at GSI Helmholtzzentrum for Heavy-Ion Research, Darmstadt. For the first time, subthreshold Ξ^{-} production is observed in proton-nucleus interactions. Assuming a Ξ^{-} phase-space distribution similar to that of Λ hyperons, the production probability amounts to P_{Ξ^{-}}=[2.0±0.4(stat)±0.3(norm)±0.6(syst)]×10^{-4} resulting in a Ξ^{-}/(Λ+Σ^{0}) ratio of P_{Ξ^{-}}/P_{Λ+Σ^{0}}=[1.2±0.3(stat)±0.4(syst)]×10^{-2}. Available model predictions are significantly lower than the measured Ξ^{-} yield.

7.
Diabet Med ; 32(11): 1479-83, 2015 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-26094489

RESUMO

AIMS: To investigate the hypothesis that high serum levels of omentin, an adipokine with anti-inflammatory, insulin-sensitizing and cardioprotective properties, may be related to a lower risk of diabetic sensorimotor polyneuropathy. METHODS: The association between serum omentin level and polyneuropathy was estimated in people aged 61-82 years with Type 2 diabetes (47 with and 168 without polyneuropathy) from the population-based KORA F4 study. The presence of clinical diabetic sensorimotor polyneuropathy was defined as bilateral impairment of foot vibration perception and/or foot pressure sensation. Omentin levels were determined by enzyme-linked immunosorbent assay. RESULTS: Serum omentin level was inversely associated with polyneuropathy after adjustment for age, sex, height, waist circumference, hypertension, total cholesterol, smoking, alcohol intake and physical activity [odds ratio 0.45 (95% CI 0.21-0.98); P = 0.043]. Although omentin was positively correlated with adiponectin (r = 0.55, P < 0.0001) and inversely with tumour necrosis factor-α (r = -0.30, P = 0.019), additional adjustment for adiponectin and tumour necrosis factor-α had little impact on the association. CONCLUSIONS: Serum levels of omentin are reduced in people with Type 2 diabetes and diabetic sensorimotor polyneuropathy, independently of established risk factors of polyneuropathy. This association is only partially explained by biomarkers of subclinical inflammation.


Assuntos
Envelhecimento , Citocinas/sangue , Diabetes Mellitus Tipo 2/complicações , Neuropatias Diabéticas/sangue , Regulação para Baixo , Lectinas/sangue , Polineuropatias/sangue , Adiponectina/sangue , Idoso , Idoso de 80 Anos ou mais , Biomarcadores/sangue , Estudos de Coortes , Estudos Transversais , Neuropatias Diabéticas/epidemiologia , Feminino , Seguimentos , Proteínas Ligadas por GPI/sangue , Alemanha/epidemiologia , Inquéritos Epidemiológicos , Humanos , Masculino , Polineuropatias/complicações , Polineuropatias/epidemiologia , Fatores de Risco , Fator de Necrose Tumoral alfa/sangue
8.
Horm Metab Res ; 47(7): 479-84, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25295415

RESUMO

The objective of the present study was to analyse the association between the plasma cortisol concentration and nonalcoholic fatty liver disease (NAFLD). A total of 1 326 subjects (age 18-65 years) were examined in the context of an epidemiological study of a population-based random sample. Medical history and anthropometric data of 662 women and 664 men were documented. In addition, laboratory examinations were performed and the fat concentration of the liver was estimated by ultrasound examination. Mean cortisol concentration in plasma was 260.4±156.8 nmol/l for women and 295.8±161.2 nmol/l for men. NAFLD was identified in 17.7% in women and 35.1% in men. Plasma cortisol concentration showed no association with the existence of NAFLD. NAFLD correlated positive with age, body-mass index (BMI), waist-to-hip-ratio (WHR), alanine aminotransferase (ALT), and triglycerides. The present study failed to establish any association of plasma cortisol concentrations and NAFLD.


Assuntos
Índice de Massa Corporal , Hidrocortisona/sangue , Hepatopatia Gordurosa não Alcoólica/sangue , Triglicerídeos/sangue , Adolescente , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Hepatopatia Gordurosa não Alcoólica/diagnóstico por imagem , Ultrassonografia , Relação Cintura-Quadril , Adulto Jovem
9.
Osteoporos Int ; 25(3): 923-32, 2014 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-24221451

RESUMO

SUMMARY: This prospective study in elderly showed that kidney function plays a minor role in explaining the high prevalence of vitamin D deficiency seen in noninstitutionalized elderly subjects. However, 25-hydroxyvitamin D levels were clearly inversely associated with risk for first fall, which was especially seen in subjects with calcium levels above median. INTRODUCTION: Few prospective studies in elderly exist that have investigated the association of renal dysfunction and vitamin D status on risk of falls. The aim of this study is to evaluate the association of renal function with 25-hydroxyvitamin D (25-OH-D) levels and, secondly, to assess the role of both factors on the risk of falls and subsequent bone fractures. METHODS: This is a prospective population-based cohort study among noninstitutionalized elderly subjects during a 1-year follow-up. 25-OH-D levels and renal function were estimated, the latter by cystatin C-based equations. Information on falls was assessed prospectively. RESULTS: Overall, 1,385 subjects aged 65 and older were included in the study (mean age 75.6 years), of whom 9.2 % had a 25-OH-D serum level above 75 nmol/L (US units 30 ng/mL); 41.4 %, between 50 and 75 nmol/L (US units 20 to 29 ng/mL, insufficiency); and 49.4 %, <50 nmol/L (US units <20 ng/mL, deficiency). We found no association of chronic kidney disease with risk of first fall. In contrast, 25-OH-D serum categories were clearly associated with risk of first fall and we found evidence of effect modification with calcium levels. In the group with a calcium level above the median (≥ 9.6 mg/dL), subjects with 25-OH-D serum level between 50 and 75 nmol/L and with concentrations <50 nmol/L had a hazard rate ratio (HRR) of 1.75 (1.03-2.87) and 1.93 (1.10-3.37) for risk of first fall. 25-OH-D serum levels were also associated with several markers of inflammation and hemodynamic stress. CONCLUSIONS: We demonstrated an association of 25-OH-D serum levels and risk of first fall, which was especially evident in subjects with serum calcium in upper normal, independent of renal function.


Assuntos
Acidentes por Quedas/estatística & dados numéricos , Fraturas por Osteoporose/etiologia , Insuficiência Renal Crônica/complicações , Vitamina D/análogos & derivados , Idoso , Idoso de 80 Anos ou mais , Cálcio/sangue , Feminino , Alemanha/epidemiologia , Taxa de Filtração Glomerular/fisiologia , Humanos , Masculino , Fraturas por Osteoporose/sangue , Fraturas por Osteoporose/epidemiologia , Prevalência , Estudos Prospectivos , Insuficiência Renal Crônica/epidemiologia , Insuficiência Renal Crônica/fisiopatologia , Características de Residência , Vitamina D/sangue , Deficiência de Vitamina D/sangue , Deficiência de Vitamina D/complicações , Deficiência de Vitamina D/epidemiologia
10.
Horm Metab Res ; 46(4): 287-93, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24000139

RESUMO

Sex hormone binding globulin (SHBG) is a glycoprotein expressed predominantly in the hepatocytes. It regulates the transport of sex steroid hormones in the blood stream to their target tissues. The expression of the SHBG gene is subject to multifactorial regulation including hormonal, metabolic, and nutritional aspects. Against this background, we investigated the effect of fatty liver and metabolic syndrome, together with other parameters, on serum SHBG concentrations in a population-based cohort in Germany. This cross-sectional study included 870 women and 787 men (average age 42.3±12.8 years), who underwent ultrasound screening for fatty liver in addition to providing a complete medical history and undergoing physical and laboratory examination. Fatty liver was diagnosed on ultrasound criteria in 159 women (18.3%) and 287 men (36.5%). Fatty liver was shown to exert a significant influence on serum SHBG concentrations in men and in premenopausal women. Men with grade 1 fatty liver had a 1.96-fold increased risk (95%-confidence interval=1.28-3.02; p=0.0022) and postmenopausal women with grade 1 fatty liver a 2.4-fold risk (95%-confidence interval=1.11-5.27; p=0.0267) for low SHBG concentrations. Among metabolic parameters, HDL-C represented as affecting factor in men (p=0.0058) and premenopausal women (p=0.0002), while cholesterol only showed an association in premenopausal women (p=0.0439) and triglyceride in postmenopausal women (p=0.0436). No association of concentrations of SHBG and metabolic syndrome was observed. Age, BMI and waist-to-hip ratio also influence the SHBG concentration. Based on these findings, we conclude that fat accumulation in the liver influences SHBG concentrations in men and premenopausal women.


Assuntos
Fígado Gorduroso/sangue , Globulina de Ligação a Hormônio Sexual/metabolismo , Adolescente , Adulto , Idoso , Feminino , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Pré-Menopausa/sangue , Adulto Jovem
11.
Internist (Berl) ; 55(5): 601-6, 2014 May.
Artigo em Alemão | MEDLINE | ID: mdl-24770979

RESUMO

Guidelines for the reduction of cholesterol to prevent atherosclerotic vascular events were recently released by the American Heart Association and the American College of Cardiology. The authors claim to refer entirely to evidence from randomized controlled trials, thereby confining their guidelines to statins as the primary therapeutic option. The guidelines derived from these trials do not specify treatment goals, but refer to the percentage of cholesterol reduction by statin medication with low, moderate, and high intensity. However, these targets are just as little tested in randomized trials as are the cholesterol goals derived from clinical experience. The same applies to the guidelines of the four patient groups which are defined by vascular risk. No major statin trial has included patients on the basis of their global risk; thus the allocation criteria are also arbitrarily chosen. These would actually lead to a significant increase in the number of patients to be treated with high or maximum dosages of statins. Also, adhering to dosage regulations instead of cholesterol goals contradicts the principles of individualized patient care. The option of the new risk score to calculate lifetime risk up to the age of 80 years in addition to the 10-year risk can be appreciated. Unfortunately it is not considered in the therapeutic recommendations provided, despite evidence from population and genetic studies showing that even a moderate lifetime reduction of low-density lipoprotein (LDL) cholesterol or non-HDL cholesterol has a much stronger effect than an aggressive treatment at an advanced age. In respect to secondary prevention, the new American guidelines broadly match the European guidelines. Thus, the involved societies from Germany, Austria and Switzerland recommend continuing according to established standards, such as the EAS/ESC guidelines.


Assuntos
Anticolesterolemiantes/administração & dosagem , Aterosclerose/sangue , Aterosclerose/prevenção & controle , Dietoterapia/normas , Hipercolesterolemia/sangue , Hipercolesterolemia/prevenção & controle , Guias de Prática Clínica como Assunto , Áustria , Cardiologia/normas , Humanos , Fatores de Risco , Suíça
12.
Prev Med ; 57(5): 596-600, 2013 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-23948106

RESUMO

OBJECTIVE: To determine the risk for incident reduced kidney function (RKF) of subjects with pre-diabetes (impaired fasting glucose (IFG, 5.6-6.9 mmol/L)) or HbA1c-defined pre-diabetes (5.7%-6.4%) and to determine dose-response relationships of fasting glucose and HbA1c with RKF in subjects with manifest diabetes mellitus. METHOD: In a German population-based cohort, recruited 2000-2002 with ages 50-74 years, log-binomial regression was used to estimate relative risks (RR) with 95% confidence intervals (95%CI) and restricted cubic splines to plot dose-response relationships. RESULTS: During 8 years of follow-up, 678 of 3538 study participants developed primary RKF. Although RKF risk factor prevalences and RKF incidences were higher in subjects with pre-diabetes than in subjects with normal FPG and/or HbA1c levels, an increased risk did not persist after adjusting for established cardiovascular risk factors (RR(IFG): 0.97 (95% CI: 0.75-1.25) and RR(HbA1c-defined pre-diabetes): 1.03 (95% CI: 0.86-1.23)). In subjects with manifest diabetes, RKF risk increased linearly to a more than three-fold risk with increasing fasting glucose and HbA1c levels (at HbA1c>6.4%). CONCLUSION: This study provides further evidence that pre-diabetes may not directly contribute to the development of kidney disease. Subjects with pre-diabetes might nevertheless profit from preventive efforts reducing their cardiovascular risk profile because cardiovascular and kidney disease share common risk factors.


Assuntos
Glicemia/metabolismo , Diabetes Mellitus Tipo 2/sangue , Nefropatias Diabéticas/sangue , Hemoglobinas Glicadas/metabolismo , Testes de Função Renal , Estado Pré-Diabético/sangue , Idoso , Estudos de Coortes , Creatinina/sangue , Progressão da Doença , Feminino , Seguimentos , Alemanha , Taxa de Filtração Glomerular/fisiologia , Teste de Tolerância a Glucose , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Fatores de Risco
13.
Clin Res Cardiol ; 112(11): 1639-1649, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37422840

RESUMO

BACKGROUND AND AIMS: Low-density lipoprotein cholesterol (LDL-C) is the main therapeutic target in the treatment of hypercholesterolemia. Small interfering RNA (siRNA) inclisiran is a new drug, which targets PCSK9 mRNA in the liver, reducing concentrations of circulating LDL-C. In randomized trials, inclisiran demonstrated a substantial reduction in LDL-C. The German Inclisiran Network (GIN) aims to evaluate LDL-C reductions in a real-world cohort of patients treated with inclisiran in Germany. METHODS: Patients who received inclisiran in 14 lipid clinics in Germany for elevated LDL-C levels between February 2021 and July 2022 were included in this analysis. We described baseline characteristics, individual LDL-C changes (%) and side effects in 153 patients 3 months (n = 153) and 9 months (n = 79) after inclisiran administration. RESULTS: Since all patients were referred to specialized lipid clinics, only one-third were on statin therapy due to statin intolerance. The median LDL-C reduction was 35.5% at 3 months and 26.5% at 9 months. In patients previously treated with PCSK9 antibody (PCSK9-mAb), LDL-C reductions were less effective than in PCSK9-mAb-naïve patients (23.6% vs. 41.1% at 3 months). Concomitant statin treatment was associated with more effective LDL-C lowering. There was a high interindividual variability in LDL-C changes from baseline. Altogether, inclisiran was well-tolerated, and side effects were rare (5.9%). CONCLUSION: In this real-world patient population referred to German lipid clinics for elevated LDL-C levels, inclisiran demonstrated a high interindividual variability in LDL-C reductions. Further research is warranted to elucidate reasons for the interindividual variability in drug efficacy.


Assuntos
Anticolesterolemiantes , Inibidores de Hidroximetilglutaril-CoA Redutases , Humanos , LDL-Colesterol , Pró-Proteína Convertase 9 , Inibidores de Hidroximetilglutaril-CoA Redutases/efeitos adversos , RNA Interferente Pequeno/efeitos adversos , Anticolesterolemiantes/efeitos adversos
14.
J Intern Med ; 271(1): 43-50, 2012 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-21535251

RESUMO

AIMS: Oxidative stress plays a critical role in the initiation and progression of atherosclerosis. Myeloperoxidase (MPO) is a marker of oxidative stress. We prospectively investigated whether an increased serum concentration of MPO is associated with an increased risk of incident coronary heart disease (CHD). METHODS: We conducted a population-based case-cohort study in middle-aged, healthy men and women within the MONICA/KORA Augsburg studies. Serum levels of MPO were measured in 333 subjects with (cases) and 1727 without (noncases) incident CHD. Mean follow-up time was 10.8 ± 4.6 years. RESULTS: Baseline concentrations of MPO were higher in cases compared with noncases (P ≤ 0.001 in men; P=0.131 in women). After adjustment for major cardiovascular risk factors, the hazard ratio (HR) with 95% confidence interval (CI) comparing the top with the two lower tertiles was 1.70 (95% CI, 1.25-2.30). After additional adjustment for markers of inflammation and endothelial dysfunction, the association was attenuated (HR 1.50; 95% CI, 1.08-2.09). There were no significant interactions of MPO with sex or increased weight on CHD risk. CONCLUSIONS: Elevated concentrations of the oxidative stress marker MPO were independently associated with increased risk of incident CHD. This finding deserves detailed evaluation in further studies.


Assuntos
Doença das Coronárias/sangue , Doença das Coronárias/epidemiologia , Morte Súbita Cardíaca/epidemiologia , Infarto do Miocárdio/sangue , Infarto do Miocárdio/epidemiologia , Peroxidase/sangue , Estudos de Coortes , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Fatores de Risco
15.
Arthritis Rheum ; 63(12): 3979-87, 2011 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-21898345

RESUMO

OBJECTIVE: Several autoimmune disorders, including systemic sclerosis (SSc), are characterized by a strong sex bias. To date, it is not known whether genes on the sex chromosomes influence SSc susceptibility. Recently, an IRAK1 haplotype that contains the 196Phe functional variant (rs1059702), located on Xq28, was found to confer susceptibility to systemic lupus erythematosus (SLE). This study was undertaken to test for an association between SSc and the IRAK1 SLE risk haplotype. METHODS: We tested for an association with the IRAK1 SLE risk haplotype in a discovery set of 849 SSc patients and 625 controls. IRAK1 rs1059702 was further genotyped in a replication set, which included Caucasian women from Italy (493 SSc patients and 509 controls) and Germany (466 SSc patients and 1,083 controls). RESULTS: An association between the IRAK1 haplotype and SSc was detected in the discovery set. In both the discovery and replication sets, the rs1059702 TT genotype was found to be associated with specific SSc subsets, highlighting a potential contribution to disease severity. A meta-analysis provided evidence of an association of both the T allele and TT genotype with the overall disease, with an odds ratio (OR) of 1.20 and 95% confidence interval (95% CI) of 1.06-1.35 for the T allele (P = 0.003) and an OR of 1.49 and 95% CI of 1.06-2.10 for the TT genotype (P = 0.023). However, the most notable associations were observed with the diffuse cutaneous, anti-topoisomerase I antibody positive, and SSc-related fibrosing alveolitis subsets (OR 2.35 [95% CI 1.51-3.66], P = 1.56 × 10(-4), OR 2.84 [95% CI 1.87-4.32], P = 1.07 × 10(-6), and OR 2.09 [95% CI 1.35-3.24], P = 9.05 × 10(-4), respectively). CONCLUSION: Our study provides the first evidence of an association between IRAK1 and SSc, demonstrating that a sex chromosome gene directly influences SSc susceptibility and its phenotypic heterogeneity.


Assuntos
Cromossomos Humanos X/genética , Predisposição Genética para Doença/genética , Haplótipos/genética , Quinases Associadas a Receptores de Interleucina-1/genética , Escleroderma Sistêmico/genética , Adulto , Idoso , Estudos de Casos e Controles , Feminino , França , Variação Genética/genética , Genótipo , Alemanha , Humanos , Itália , Pessoa de Meia-Idade
16.
Diabetologia ; 54(11): 2755-67, 2011 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-21870174

RESUMO

AIMS/HYPOTHESIS: Low-grade inflammation and endothelial dysfunction may play a role in the pathogenesis of type 2 diabetes and cardiovascular disease. We evaluated whether a diet high in fatty fish, bilberries and wholegrain products (Healthy Diet) improves biomarkers reflecting inflammation and endothelial dysfunction in individuals with impaired glucose metabolism. METHODS: We recruited individuals with impaired glucose metabolism and features of the metabolic syndrome into a 12 week, parallel design, dietary intervention trial conducted at the Department of Clinical Nutrition, University of Eastern Finland (Kuopio, Finland). Randomisation was performed by matching according to sex and medians of age, BMI and fasting plasma glucose of the study population at screening. The primary endpoint in the present study was the change in plasma inflammatory markers and the measurements were performed blinded to group assignment. High-sensitivity (hs) C-reactive protein (CRP) and E-selectin responses were also analysed separately in participants not using statins (n = 76). RESULTS: Altogether, 131 individuals were assigned to either the Healthy Diet (n = 44), a whole-grain-enriched diet (WGED) (n = 42) or a control (n = 45) diet, and 104 participants (mean ± SD: age 59 ± 7 years; BMI 31.1 ± 3.5 kg/m(2)) who had completed the study, were analysed (Healthy Diet n = 36, WGED n = 34 and control diet n = 34). Plasma E-selectin decreased only in the Healthy Diet group. This occurred in all group participants (p < 0.05) and also after excluding participants using statins (p < 0.05). Plasma hsCRP levels decreased in the Healthy Diet (median -17%, p < 0.05) and WGED (median -27%, p < 0.01) groups in participants not using statins. Controlling for confounding factors, including BMI or insulin sensitivity, did not alter the results. A greater increase in plasma concentration of very-long-chain n-3 fatty acids and in the intake of fibre during the study was associated with a greater decrease in plasma E-selectin (p < 0.05). The intake of test breads consumed during the Healthy Diet and WGED interventions was inversely associated with the change in hsCRP levels (p < 0.001). CONCLUSIONS/INTERPRETATION: Our results suggest that the combined effect of fatty fish, bilberries and wholegrain products may improve endothelial dysfunction and inflammation in overweight and obese individuals at high risk of developing diabetes.


Assuntos
Grão Comestível , Endotélio Vascular/fisiopatologia , Ácidos Graxos Ômega-3/uso terapêutico , Transtornos do Metabolismo de Glucose/dietoterapia , Transtornos do Metabolismo de Glucose/fisiopatologia , Alimentos Marinhos , Vaccinium myrtillus , Idoso , Animais , Biomarcadores/sangue , Índice de Massa Corporal , Proteína C-Reativa/análise , Fibras na Dieta/administração & dosagem , Fibras na Dieta/análise , Selectina E/sangue , Grão Comestível/química , Endotélio Vascular/imunologia , Ácidos Graxos Ômega-3/análise , Feminino , Finlândia , Peixes , Frutas , Transtornos do Metabolismo de Glucose/sangue , Transtornos do Metabolismo de Glucose/imunologia , Humanos , Masculino , Síndrome Metabólica/sangue , Síndrome Metabólica/dietoterapia , Síndrome Metabólica/imunologia , Síndrome Metabólica/fisiopatologia , Pessoa de Meia-Idade , Alimentos Marinhos/análise
17.
Brain Behav Immun ; 25(8): 1701-7, 2011 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-21756997

RESUMO

INTRODUCTION: Depressed individuals not only suffer from chronic low grade inflammation, but also exhibit an inflammatory hyper-responsiveness to acute stress. We investigate whether chronic stress also induces an exaggerated inflammatory response in individuals with increased depression features. As model for chronic stress, social isolation was chosen. METHODS: Interleukin (IL)-6 and hs-CRP levels were assessed in 1547 subjects (847 men and 700 women), derived from the population-based MONICA/KORA study. Standardized questionnaires were used to assess depressed mood (depression and exhaustion subscale) and social isolation (social network index). The relationship between the two inflammatory markers, social isolation and depressed mood was examined taking into account interactions social isolation × depressed mood using multivariable linear regression models, adjusted for age, BMI, smoking, alcohol, and physical activity. Analyses were performed in men and women separately. RESULTS: We observed a significant interaction between depressed mood and social isolation regarding IL-6 and hs-CRP, respectively in men (p-value=0.02 for IL-6 and <0.01 for hs-CRP), evidencing a substantial synergistic effect of social isolation, and depressed mood on inflammatory responses. Furthermore, depressed and socially isolated men had highly significantly elevated IL-6 levels (geometric mean: 3.76 vs. 1.92 pg/ml, p-value <0.01) and heightened hs-CRP levels (geometric mean: 2.01 vs. 1.39 mg/l, p=0.08) in comparison with non-depressed and socially integrated men. In women, no significant associations were seen. CONCLUSION: The interaction of depressed mood and social isolation elicits a substantial synergistic impact on inflammatory markers in men, but not in depressed women.


Assuntos
Biomarcadores/metabolismo , Depressão/metabolismo , Inflamação/metabolismo , Isolamento Social/psicologia , Afeto , Idoso , Proteína C-Reativa/metabolismo , Doença Crônica , Feminino , Humanos , Interleucina-6/metabolismo , Modelos Lineares , Masculino , Pessoa de Meia-Idade , População , Caracteres Sexuais , Meio Social , Estresse Psicológico/metabolismo , Estresse Psicológico/psicologia
18.
Nutr Metab Cardiovasc Dis ; 21(9): 691-8, 2011 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-20400278

RESUMO

BACKGROUND AND AIM: The common single nucleotide polymorphism (SNP) in the FTO (fat mass and obesity associated) gene has been consistently associated with an increased risk of obesity. We investigated whether the SNP rs9939609 (T/A) of the FTO is associated with risk factors of cardiovascular diseases (CVD), including serum levels of C - reactive protein (CRP), the chemokine RANTES (Regulated on Activation, Normal T Cell Expressed and Secreted; CCL5), and serum and lipoprotein lipids in the Finnish Diabetes Prevention Study (DPS). Furthermore, we examined whether the rs9939609 increased the CVD risk in the DPS and if these results could be replicated in a larger cross-sectional population-based random sample of Finnish men (the METSIM). METHODS AND RESULTS: In the DPS, altogether 490 (BMI≥25kg/m(2)) subjects with impaired glucose tolerance were genotyped for rs9939609. Cardiovascular morbidity and mortality data were collected during the median follow-up of 10.2 years. The replication study was a population-based cross-sectional study of 6214 men. In the DPS, the AA genotype of rs9939609 was associated, independently of BMI, with increased RANTES (p=0.002) and decreased HDL cholesterol concentrations (p=0.007) in men. During the follow-up, the AA genotype was associated with an adjusted 2.09-fold risk (95% CI 1.17-3.73, p=0.013) of CVD in men. In the METSIM Study, the association with a history of myocardial infarction was replicated in the subgroup of men with type 2 diabetes. CONCLUSION: We suggest that the variation in the FTO gene may contribute to the development of CVD in men with an abnormal glucose metabolism.


Assuntos
Glicemia/metabolismo , Doenças Cardiovasculares/epidemiologia , Doenças Cardiovasculares/genética , Polimorfismo de Nucleotídeo Único , Proteínas/genética , Idoso , Dioxigenase FTO Dependente de alfa-Cetoglutarato , Glicemia/análise , Proteína C-Reativa/análise , Doenças Cardiovasculares/patologia , Estudos Transversais , Feminino , Finlândia/epidemiologia , Seguimentos , Genótipo , Intolerância à Glucose/genética , Humanos , Masculino , Pessoa de Meia-Idade , Proteínas/metabolismo , Fatores de Risco
20.
Diabet Med ; 27(9): 1004-11, 2010 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-20722673

RESUMO

AIMS: Adipocyte-derived hormones seem to be involved in the development of Type 2 diabetes. Therefore, we assessed the association between the proinflammatory adipokine leptin and incident Type 2 diabetes, taking into account interactions between leptin and the anti-inflammatory adipokine adiponectin. METHODS: Using a case-cohort design, serum levels of adipokines were measured in 460 cases with incident Type 2 diabetes and 1474 non-cases selected from a source population of 7936 middle-aged subjects participating in the population-based Monitoring of Trends and Determinants in Cardiovascular Disease (MONICA)/Cooperative Health Research in the Region of Augsburg (KORA) Augsburg cohort study between 1984 and 1995 and followed up until 2002 (mean follow-up 10.9+/-4.7 years). RESULTS: High leptin and low adiponectin levels were associated with an increased Type 2 diabetes risk. The multivariable adjusted hazard ratios (HRs) and 95% confidence intervals (CIs) comparing tertile extremes were 1.71 (1.12-2.63) for leptin (top vs. bottom tertile) and 2.65 (1.88-3.76) for adiponectin (bottom vs. top tertile), respectively. There was a significant interaction between leptin and adiponectin, with highest diabetes risk being observed in individuals with high leptin and low adiponectin levels (P = 0.029 for interaction).While the addition of adiponectin to a basic risk factor model improved model prediction (Delta area under the curve 0.011), the change in model prediction was only marginal after the addition of leptin (Delta area under the curve 0.002). CONCLUSIONS: Our findings indicate that the two adipokines leptin and adiponectin interact in modulating Type 2 diabetes risk, but adiponectin is more strongly associated with Type 2 diabetes risk than leptin.


Assuntos
Adiponectina/sangue , Diabetes Mellitus Tipo 2/epidemiologia , Leptina/sangue , Adulto , Idoso , Área Sob a Curva , Biomarcadores/sangue , Estudos de Casos e Controles , Estudos de Coortes , Diabetes Mellitus Tipo 2/sangue , Feminino , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Fatores de Risco
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