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1.
J Sleep Res ; 30(5): e13331, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-33987873

RESUMO

Patients with obstructive sleep apnea (OSA) are at increased risk of developing metabolic disease such as diabetes. The effects of positive airway pressure on glycemic control are contradictory. We therefore evaluated the change in glycated hemoglobin (HbA1c) in a large cohort of OSA patients after long-term treatment with positive airway pressure. HbA1c levels were assessed in a subsample of the European Sleep Apnea Database [n=1608] at baseline and at long-term follow up with positive airway pressure therapy (mean 378.9±423.0 days). In a regression analysis, treatment response was controlled for important confounders. Overall, HbA1c decreased from 5.98±1.01% to 5.93±0.98% (p=0.001). Patient subgroups with a more pronounced HbA1c response included patients with diabetes (-0.15±1.02, p=0.019), those with severe OSA baseline (-0.10±0.68, p=0.005), those with morbid obesity (-0.20±0.81, p<0.001). The strongest HbA1c reduction was observed in patients with a concomitant weight reduction >5 kilos (-0.38±0.99, p<0.001). In robust regression analysis, severe OSA (p=0.038) and morbid obesity (p=0.005) at baseline, and weight reduction >5 kilos (p<0.001) during follow up were independently associated with a reduction of HbA1c following PAP treatment. In contrast, PAP treatment alone without weight reduction was not associated with significant Hb1Ac reduction. In conclusion, positive airway pressure therapy is associated with HbA1c reduction in patients with severe OSA, in morbidly obese patients. and most obviously in those with significant weight lost during the follow-up. Our study underlines the importance to combine positive airway pressure use with adjustments in lifestyle to substantially modify metabolic complications in OSA.


Assuntos
Obesidade Mórbida , Apneia Obstrutiva do Sono , Pressão Positiva Contínua nas Vias Aéreas , Hemoglobinas Glicadas/análise , Humanos , Obesidade Mórbida/complicações , Obesidade Mórbida/terapia , Apneia Obstrutiva do Sono/complicações , Apneia Obstrutiva do Sono/terapia , Redução de Peso
2.
Croat Med J ; 60(5): 421-430, 2019 Oct 31.
Artigo em Inglês | MEDLINE | ID: mdl-31686456

RESUMO

AIM: To assess the effects of single nucleotide polymorphisms (SNPs) on blood pressure control in patients with obstructive sleep apnea (OSA). METHODS: This prospective observational cohort study, conducted between 2004 and 2014, examined the associations of SNPs of JAG1, GUCY1A3-GUCY1B3, SH2B3, and NPR3-C5orf23 genes with systolic and diastolic blood pressure (SBP, DBP) in 1179 adults evaluated for OSA with overnight polysomnography. Genotyping was performed by unlabeled probe melting analysis. RESULTS: The patients were predominantly male (69.6%, mean age 52±11 years, apnea-hypopnea index 34±31 episodes/h). Only JAG1 genotype was associated with SBP and DBP: compared with AA homozygotes, G allele carriers (pooled GG and AG genotype) had significantly higher morning SBP (132±19 vs 129±18 mm Hg; P=0.009) and morning and evening DBP (85±11 vs 83±10 mm Hg, P=0.004; 86±10 vs 84±10 mm Hg, P=0.012, respectively); the differences remained significant after the correction for multiple SNPs testing. In multivariate analyses, oxygen desaturation index and JAG1 genotype independently predicted morning SBP (P=0.001, P=0.003, respectively) and DBP (P<0.001, P=0.005, respectively), and evening SBP (P=0.019, P=0.048, respectively) and DBP (P=0.018, P=0.018, respectively). CONCLUSION: This is the first replication study of the SNPs recently linked to arterial hypertension in general population by genome-wide association studies. Our findings suggest that JAG1 genotype is related to blood pressure control in OSA: G allele was associated with higher morning and evening SBP and DBP.


Assuntos
Pressão Sanguínea/fisiologia , Hipertensão , Proteína Jagged-1/genética , Apneia Obstrutiva do Sono , Adulto , Feminino , Estudo de Associação Genômica Ampla , Humanos , Hipertensão/complicações , Hipertensão/epidemiologia , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Apneia Obstrutiva do Sono/complicações , Apneia Obstrutiva do Sono/epidemiologia , Apneia Obstrutiva do Sono/genética
3.
Eur Respir J ; 49(5)2017 05.
Artigo em Inglês | MEDLINE | ID: mdl-28495687

RESUMO

Chronic obstructive pulmonary disease (COPD) represents a major health problem in Central and Eastern European (CEE) countries; however, there are no data regarding clinical phenotypes of these patients in this region.Participation in the Phenotypes of COPD in Central and Eastern Europe (POPE) study was offered to stable patients with COPD in a real-life setting. The primary aim of this study was to assess the prevalence of phenotypes according to predefined criteria. Secondary aims included analysis of differences in symptom load, comorbidities and pharmacological treatment.3362 patients with COPD were recruited in 10 CEE countries. 63% of the population were nonexacerbators, 20.4% frequent exacerbators with chronic bronchitis, 9.5% frequent exacerbators without chronic bronchitis and 6.9% were classified as asthma-COPD overlap. Differences in the distribution of phenotypes between countries were observed, with the highest heterogeneity observed in the nonexacerbator cohort and the lowest heterogeneity observed in the asthma-COPD cohort. There were statistically significant differences in symptom load, lung function, comorbidities and treatment between these phenotypes.The majority of patients with stable COPD in CEE are nonexacerbators; however, there are distinct differences in surrogates of disease severity and therapy between predefined COPD phenotypes.


Assuntos
Bronquite/diagnóstico , Doença Pulmonar Obstrutiva Crônica/diagnóstico , Doença Pulmonar Obstrutiva Crônica/fisiopatologia , Fumar/epidemiologia , Idoso , Bronquite/complicações , Bronquite Crônica/complicações , Comorbidade , Estudos Transversais , Coleta de Dados , Europa (Continente)/epidemiologia , Feminino , Volume Expiratório Forçado , Humanos , Cooperação Internacional , Masculino , Pessoa de Meia-Idade , Fenótipo , Prevalência , Doença Pulmonar Obstrutiva Crônica/complicações , Tabagismo/complicações , Tabagismo/diagnóstico , Resultado do Tratamento , Capacidade Vital
4.
J Allergy Clin Immunol ; 138(6): 1571-1579.e10, 2016 12.
Artigo em Inglês | MEDLINE | ID: mdl-27345171

RESUMO

BACKGROUND: The impact of airway hyperreactivity (AHR) on respiratory mortality and systemic inflammation among patients with chronic obstructive pulmonary disease (COPD) is largely unknown. We used data from 2 large studies to determine the relationship between AHR and FEV1 decline, respiratory mortality, and systemic inflammation. OBJECTIVES: We sought to determine the relationship of AHR with FEV1 decline, respiratory mortality, and systemic inflammatory burden in patients with COPD in the Lung Health Study (LHS) and the Groningen Leiden Universities Corticosteroids in Obstructive Lung Disease (GLUCOLD) study. METHODS: The LHS enrolled current smokers with mild-to-moderate COPD (n = 5887), and the GLUCOLD study enrolled former and current smokers with moderate-to-severe COPD (n = 51). For the primary analysis, we defined AHR by a methacholine provocation concentration of 4 mg/mL or less, which led to a 20% reduction in FEV1 (PC20). RESULTS: The primary outcomes were FEV1 decline, respiratory mortality, and biomarkers of systemic inflammation. Approximately 24% of LHS participants had AHR. Compared with patients without AHR, patients with AHR had a 2-fold increased risk of respiratory mortality (hazard ratio, 2.38; 95% CI, 1.38-4.11; P = .002) and experienced an accelerated FEV1 decline by 13.2 mL/y in the LHS (P = .007) and by 12.4 mL/y in the much smaller GLUCOLD study (P = .079). Patients with AHR had generally reduced burden of systemic inflammatory biomarkers than did those without AHR. CONCLUSIONS: AHR is common in patients with mild-to-moderate COPD, affecting 1 in 4 patients and identifies a distinct subset of patients who have increased risk of disease progression and mortality. AHR may represent a spectrum of the asthma-COPD overlap phenotype that urgently requires disease modification.


Assuntos
Asma/epidemiologia , Doença Pulmonar Obstrutiva Crônica/epidemiologia , Hipersensibilidade Respiratória/epidemiologia , Adulto , Idoso , Asma/diagnóstico , Asma/mortalidade , Biomarcadores/metabolismo , Humanos , Mediadores da Inflamação/metabolismo , Pessoa de Meia-Idade , Países Baixos , Doença Pulmonar Obstrutiva Crônica/diagnóstico , Doença Pulmonar Obstrutiva Crônica/mortalidade , Hipersensibilidade Respiratória/diagnóstico , Hipersensibilidade Respiratória/mortalidade , Risco , Fumar/efeitos adversos , Espirometria , Análise de Sobrevida , Síndrome
5.
J Electrocardiol ; 48(2): 164-70, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25541278

RESUMO

BACKGROUND: Obstructive sleep apnea (OSA) has been reported to be associated with an increased risk of ventricular arrhythmias and conduction disturbances. The aim of this study was to analyze the QRS complex morphology potentially indicative of intraventricular conduction impairment in patients with mild to severe OSA. MATERIAL AND METHODS: One hundred ninety-three consecutive patients, who underwent complete overnight polysomnography, were divided into four groups based on the OSA severity: (1) no OSA, (2) mild OSA, (3) moderate OSA and (4) severe OSA (apnea-hypopnea index <5, 5-15, 15-30, >30/h, respectively). Resting 12-lead ECG was recorded, the QRS parameters included QRS amplitude in individual leads, QRS spatial vector magnitude (QRSmax), electrical axis (EA), ECG criteria for left ventricular hypertrophy (ECG-LVH) and right ventricular hypertrophy (ECG-RVH), and occurrence of fragmented QRS (fQRS). RESULTS: Severity of OSA was significantly associated with a gradual significant shift of the electrical axis to the left (45.5±22.5°; 34.8±17.1°; 32.9±18.2°; 29.8±10.0°; respectively), while the QRSmax values were low in all patient groups, with a significant difference between no OSA and severe OSA groups. The multivariate analysis showed that QRSmax was independently associated with age and the interaction between gender and OSA severity (p=0.001, and p=0.004, respectively; adjusted R(2)=0.178). The electrical axis was found to be independently associated with age and OSA severity (p=0.037, and p=0.026, respectively; R(2)=0.109). Changes of electrical axis and of QRSmax were reflected in corresponding changes in the amplitude of 12-lead ECG and in low occurrence of ECG-LVH and ECG-RVH criteria. The OSA groups had higher occurrence of fQRS. CONCLUSION: OSA patients displayed a combination of changes in QRS complex morphology, the leftward shift of EA, low QRS voltage and fQRS, suggestive of depolarization sequence deterioration that might be indicative of considerable electrical remodeling.


Assuntos
Arritmias Cardíacas/etiologia , Sistema de Condução Cardíaco/anormalidades , Apneia Obstrutiva do Sono/complicações , Adulto , Idoso , Idoso de 80 Anos ou mais , Arritmias Cardíacas/fisiopatologia , Síndrome de Brugada , Doença do Sistema de Condução Cardíaco , Eletrocardiografia , Feminino , Sistema de Condução Cardíaco/fisiopatologia , Humanos , Hipertrofia Ventricular Esquerda/etiologia , Hipertrofia Ventricular Esquerda/fisiopatologia , Hipertrofia Ventricular Direita/etiologia , Hipertrofia Ventricular Direita/fisiopatologia , Masculino , Pessoa de Meia-Idade , Polissonografia , Estudos Prospectivos , Fatores de Risco , Índice de Gravidade de Doença , Apneia Obstrutiva do Sono/fisiopatologia
6.
Eur Respir J ; 44(4): 931-41, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25102963

RESUMO

Systemic hypertension is associated with obstructive sleep apnoea syndrome (OSAS) but the pathophysiological mechanisms are incompletely understood. A collaborative European network of 24 sleep centres established a European Sleep Apnoea Database to evaluate cardiovascular morbidity associated with OSAS. 11 911 adults referred with suspected OSAS between March 2007 and September 2013 underwent overnight sleep studies, either cardiorespiratory polygraphy or polysomnography. We compared the predictive value of the apnoea-hypopnoea index (AHI) and 4% oxygen desaturation index (ODI) for prevalent hypertension, adjusting for relevant covariates including age, smoking, obesity, dyslipidaemia and diabetes. Among patients (70% male, mean±sd age 52±12 years), 78% had AHI>5 events·h(-1) and 41% systemic hypertension. Both AHI and ODI independently related to prevalent hypertension after adjustment for relevant covariates (p<0.0001 for linear trend across quartiles (Q) of severity for both variables). However, in multiple regression analysis with both ODI and AHI in the model, ODI was, whereas AHI was not, independently associated with prevalent hypertension: odds ratios (95% CI) for Q4 versus Q1 regarding ODI were 2.01 (1.61-2.51) and regarding AHI were 0.92 (0.74-1.15) (p<0.0001 and p=0.3054, respectively). This cross sectional study suggests that chronic intermittent hypoxia plays an important role in OSAS-related hypertension.


Assuntos
Hipertensão/etiologia , Hipóxia/etiologia , Apneia Obstrutiva do Sono/complicações , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos de Coortes , Estudos Transversais , Bases de Dados Factuais , Europa (Continente) , Feminino , Humanos , Hipertensão/epidemiologia , Masculino , Pessoa de Meia-Idade , Polissonografia , Prevalência , Adulto Jovem
7.
Eur Respir J ; 43(4): 1097-105, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24232699

RESUMO

There is increasing evidence that intermittent hypoxia resulting from obstructive sleep apnoea (OSA) is independently associated with dyslipidaemia. Currently, no data exist on potential links between OSA-related dyslipidaemia and susceptibility genes for dyslipidaemia in such patients. Our aim was to study the effects of the apolipoprotein E (APOE) genotype and sleep apnoea severity on atherogenic dyslipidaemia in patients with OSA. 519 clinically stable subjects prospectively recruited at a tertiary referral teaching hospital underwent full polysomnography. APOE gene polymorphisms were assessed using real-time PCR. In all APOE genotype groups, serum triglycerides increased while high-density lipoprotein (HDL) cholesterol was reduced with increasing severity of OSA in each APOE genotype group, whereas the deleterious effects of OSA on serum apolipoprotein (Apo)B levels were observed in ε2 carriers and the ε3/ε3 genotype only. Nevertheless, the ε4 allele carriers had ApoB levels within the risk range, irrespective of nocturnal hypoxia. In addition, among patients with the high-risk ε4 genotype, those with the most severe nocturnal hypoxia had significantly higher triglyceride and lower HDL cholesterol levels compared with nonhypoxic ε4 subjects. APOE genotype and the oxygen desaturation index were both independent predictors of serum triglyceride levels (p=0.009 and p<0.001, respectively; R(2)=0.148) and ApoB levels (p=0.001 and p=0.003, respectively; R(2)=0.104). Our findings suggest that OSA has adverse effects on several lipid parameters over and above the effects carried by APOE genotype. Further st1udies are needed to analyse the effects of high-risk genotypes on metabolic and cardiovascular outcomes in patients with OSA.


Assuntos
Apolipoproteínas E/genética , Dislipidemias/sangue , Dislipidemias/genética , Lipídeos/sangue , Apneia Obstrutiva do Sono/sangue , Apneia Obstrutiva do Sono/genética , Adulto , Alelos , Dislipidemias/complicações , Feminino , Predisposição Genética para Doença , Genótipo , Heterozigoto , Humanos , Hipóxia , Masculino , Pessoa de Meia-Idade , Oxigênio/química , Polimorfismo Genético , Polissonografia , Estudos Prospectivos , Reação em Cadeia da Polimerase em Tempo Real , Fatores de Risco , Sono , Apneia Obstrutiva do Sono/complicações , Centros de Atenção Terciária , Triglicerídeos/sangue
8.
Eur Respir J ; 44(6): 1504-20, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25234804

RESUMO

Nutrition and metabolism have been the topic of extensive scientific research in chronic obstructive pulmonary disease (COPD) but clinical awareness of the impact dietary habits, nutritional status and nutritional interventions may have on COPD incidence, progression and outcome is limited. A multidisciplinary Task Force was created by the European Respiratory Society to deliver a summary of the evidence and description of current practice in nutritional assessment and therapy in COPD, and to provide directions for future research. Task Force members conducted focused reviews of the literature on relevant topics, advised by a methodologist. It is well established that nutritional status, and in particular abnormal body composition, is an important independent determinant of COPD outcome. The Task Force identified different metabolic phenotypes of COPD as a basis for nutritional risk profile assessment that is useful in clinical trial design and patient counselling. Nutritional intervention is probably effective in undernourished patients and probably most when combined with an exercise programme. Providing evidence of cost-effectiveness of nutritional intervention is required to support reimbursement and thus increase access to nutritional intervention. Overall, the evidence indicates that a well-balanced diet is beneficial to all COPD patients, not only for its potential pulmonary benefits, but also for its proven benefits in metabolic and cardiovascular risk.


Assuntos
Caquexia/diagnóstico , Exercício Físico , Obesidade/diagnóstico , Doença Pulmonar Obstrutiva Crônica/diagnóstico , Sarcopenia/diagnóstico , Comitês Consultivos , Composição Corporal , Caquexia/complicações , Caquexia/dietoterapia , Europa (Continente) , Humanos , Avaliação Nutricional , Distúrbios Nutricionais/complicações , Distúrbios Nutricionais/diagnóstico , Distúrbios Nutricionais/dietoterapia , Estado Nutricional , Obesidade/complicações , Obesidade/dietoterapia , Fenótipo , Doença Pulmonar Obstrutiva Crônica/complicações , Fatores de Risco , Sarcopenia/complicações , Sarcopenia/dietoterapia , Sociedades Médicas
9.
Eur Respir J ; 44(1): 130-9, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-24696120

RESUMO

Obstructive sleep apnoea (OSA) is associated with increased risk of dysglycaemia but the intimate link of these conditions with obesity makes discerning an independent relationship between them challenging. Glycosylated haemoglobin (HbA1c) levels predict adverse cardiovascular outcomes in nondiabetics but there is a lack of population-level data exploring the relationship of HbA1c with OSA. A cross-sectional analysis of 5294 participants in the multinational European Sleep Apnoea Cohort (European Sleep Apnoea Database) study was performed, assessing the relationship of OSA severity with HbA1c levels in nondiabetic subjects, with adjustment for confounding factors. HbA1c levels correlated significantly with OSA severity in univariate analysis. Following adjustment for confounding factors, apnoea-hypopnoea index (AHI) (standardised ß 0.158; p<0.001), along with nocturnal hypoxaemia, predicted HbA1c. Adjusted mean HbA1c levels were lower in the lowest AHI quartile (5.24%, 95% CI 5.21-5.27%) than in the second (5.37%, 95% CI 5.34-5.40%), third (5.44%, 95% CI 5.41-5.47%) or highest (5.50%, 95% CI 5.46-5.53%) quartiles. Subjects in the higher quartiles had significantly greater adjusted odds ratios of HbA1c level ≥6.0% than those in the first quartile. In stratified analyses, OSA severity predicted glycaemic health irrespective of sleep study modality, sex, obesity or daytime sleepiness. OSA severity independently predicts glycaemic health in nondiabetic subjects. Further studies should assess the impact of OSA treatment on glycaemic health and elucidate underlying mechanisms.


Assuntos
Glicemia/análise , Apneia Obstrutiva do Sono/diagnóstico , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Antropometria , Pressão Sanguínea , Doenças Cardiovasculares/sangue , Doenças Cardiovasculares/diagnóstico , Estudos Transversais , Diabetes Mellitus , Europa (Continente) , Feminino , Hemoglobinas Glicadas/metabolismo , Humanos , Hiperglicemia/sangue , Hipóxia/complicações , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Polissonografia , Estudos Prospectivos , Resultado do Tratamento , Adulto Jovem
10.
Eur Respir J ; 41(3): 523-38, 2013 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-23397300

RESUMO

This article is aimed at addressing the current state-of-the-art in epidemiology, pathophysiology, diagnostic procedures and treatment options for appropriate management of obstructive sleep apnoea (OSA) in cardiovascular (in particular hypertensive) patients, as well as for the management of cardiovascular diseases (in particular arterial hypertension) in OSA patients. The present document is the result of work performed by a panel of experts participating in the European Union COST (Cooperation in Scientific and Technological research) Action B26 on OSA, with the endorsement of the European Respiratory Society and the European Society of Hypertension. In particular, these recommendations are aimed at reminding cardiovascular experts to consider the occurrence of sleep-related breathing disorders in patients with high blood pressure. They are also aimed at reminding respiration experts to consider the occurrence of hypertension in patients with respiratory problems at night.


Assuntos
Hipertensão/complicações , Hipertensão/terapia , Apneia Obstrutiva do Sono/complicações , Apneia Obstrutiva do Sono/terapia , Adulto , Idoso , Pressão Sanguínea , Cardiologia/métodos , Cardiologia/normas , Endotélio Vascular/patologia , Europa (Continente) , Feminino , Humanos , Inflamação , Estilo de Vida , Masculino , Pessoa de Meia-Idade , Isquemia Miocárdica/patologia , Obesidade , Sistema Renina-Angiotensina , Respiração , Fatores de Risco , Sociedades Médicas , Acidente Vascular Cerebral/patologia
12.
Med Sci Monit ; 17(7): CR392-6, 2011 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-21709633

RESUMO

BACKGROUND: We aimed to analyse quantitative effects of treatment with sulphonylurea in addition to metformin on parameters of glycemic control in relation to KCNQ1 genotypes, and to identify factors predictive for the response to sulphonylurea treatment. MATERIAL/METHODS: Effect of 6-month sulphonylurea therapy in addition to metformin on glycemic control according to KCNQ1 genotypes was evaluated in 87 patients with type 2 diabetes who failed to achieve glycemic control on metformin monotherapy. KCNQ1 rs163184 (T>G) polymorphism was determined by real-time PCR with melting analysis of unlabeled probe. RESULTS: The reduction in fasting plasma glucose (ΔFPG) after 6-month sulphonylurea therapy significantly differed among 3 KCNQ1 genotype groups (ANOVA, p=0.017). In a recessive genetic model, carriers of the T-allele (TT+TG) achieved significantly lower FPG levels in comparison with patients with the GG genotype (6.95 ± 0.13 vs. 7.50 ± 0.21 mmol/L, p=0.033). Consequently, ΔFPG was significantly higher in the TT+TG group compared to the GG group (1.58 ± 0.13 vs. 1.04 ± 0.18 mmol/L, p=0.016). In multiple linear regression analysis KCNQ1 genotype (p=0.016) and baseline FPG (p<0.001) were the only significant independent predictors of ΔFPG (R2=0.48). CONCLUSIONS: Our results suggest that the magnitude of FPG reduction after 6-month sulphonylurea treatment in addition to metformin in patients with type 2 diabetes is related to the variation in KCNQ1. The FPG response to sulphonylureas was significantly lower in carriers of the risk GG genotype.


Assuntos
Diabetes Mellitus Tipo 2/tratamento farmacológico , Canal de Potássio KCNQ1/genética , Compostos de Sulfonilureia/uso terapêutico , Análise de Variância , Glicemia/análise , Primers do DNA/genética , Genótipo , Humanos , Canal de Potássio KCNQ1/metabolismo , Modelos Lineares , Metformina/uso terapêutico , Farmacogenética , Reação em Cadeia da Polimerase , Polimorfismo de Nucleotídeo Único/genética
13.
Respiration ; 81(5): 386-93, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-20699612

RESUMO

BACKGROUND: CD40, a transmembrane receptor of the tumor necrosis factor gene superfamily, is activated in response to cellular stress, including hypoxia, and orchestrates the process of inflammation via secondary messengers such as mitogen-activated protein kinase kinase 4 (MKK4) and c-Jun NH(2)-terminal kinases (JNK). OBJECTIVES: We hypothesized that CD40, MKK4 and JNK expression is increased in the adipose tissue of patients with very severe chronic obstructive pulmonary disease (COPD). METHODS: In 20 patients with stable COPD, lung function was assessed using body plethysmography, and samples of subcutaneous adipose tissue were analyzed using real-time PCR. Body composition, including fat mass index (FMI), was assessed by bioelectrical impedance. RESULTS: 12 patients in GOLD stage I-III (age 61.6 ± 8.6 years, 4 females, mean partial pressure of oxygen in arterial blood, PaO(2), 9.38 ± 0.21 kPa) were compared to 8 patients in GOLD stage IV (age 62.6 ± 6.3 years, all male, mean PaO(2) 7.70 ± 0.37 kPa). Compared to patients in GOLD stage I-III, patients in GOLD stage IV had lower FMI (p = 0.004), being associated with significantly higher adipose tissue expression of CD40, MKK4 and JNK [ΔΔCt: 2.55 (1.99, 4.40) vs. 1.87 (1.63, 2.23), p = 0.013; 5.19 (3.13, 5.96) vs. 2.98 (2.82, 3.86), p = 0.002; 9.01 (5.12, 11.41) vs. 4.65 (4.42, 6.26), p = 0.001, respectively]. Log-transformed CD40, MKK4 and JNK expression was significantly inversely related to PaO(2), respectively. CONCLUSIONS: Upregulation of proinflammatory CD40, MKK4 and JNK gene expression in adipose tissue in very severe COPD raises the possibility of a role of chronic systemic hypoxia in the pathogenesis of adipose tissue inflammation in COPD.


Assuntos
Tecido Adiposo/metabolismo , Antígenos CD40/metabolismo , Proteínas Quinases JNK Ativadas por Mitógeno/metabolismo , MAP Quinase Quinase 4/metabolismo , Adipócitos/patologia , Composição Corporal , Feminino , Expressão Gênica/fisiologia , Humanos , Masculino , Pessoa de Meia-Idade , Doença Pulmonar Obstrutiva Crônica , Regulação para Cima/fisiologia
14.
J Hypertens ; 39(2): 292-301, 2021 02 01.
Artigo em Inglês | MEDLINE | ID: mdl-33031170

RESUMO

AIMS: Arterial hypertension is highly prevalent and difficult to control in patients with obstructive sleep apnea (OSA). High sympathoadrenergic activity is a hallmark physiological phenomenon in OSA. We hypothesized that an antihypertensive drug with inhibitory properties on this activity, such as beta blockers (BBs), may be particularly efficacious in OSA patients. METHODS: Hypertensive OSA patients receiving blood pressure-lowing treatment in the European Sleep Apnea Database (ESADA) (n = 5818, 69% men, age 58 ±â€Š11 years, body mass index 33 ±â€Š7 kg/m2, apnea hypopnea index 34 ±â€Š26 events/h) were analyzed. Reported medications [BB, diuretic, renin-angiotensin blocker (RAB), calcium channel blocker (CCB), and centrally acting antihypertensive (CAH)] were classified according to ATC code. Office blood pressure was compared in patients with monotherapy or combination therapy controlling for confounders. RESULTS: Poorly controlled SBP according to the ESC/ESH guidelines was found in 66% of patients. Patients receiving monotherapy with RAB, CCB or CAH had 2.2 (95% CI 1.4-3.0), 3.0 (1.9-4.1) and 3.0 (1.7-4.7) mmHg higher SBP compared with those on BB (adjusted model, P = 0.007, 0.008 and 0.017, respectively). In those with a combination of two antihypertensive drugs, SBP was 5.5 (4.0-7.1), 5.1 (3.7-6.6), 4.3 (2.5-6.1) and 3.1 (1.6-4.6) mmHg higher in those on CCB/RAB, BB/RAB, BB/CCB or diuretic/RAB compared with those on BB/diuretic (adjusted model, P < 0.001, <0.001, 0.018 and 0.036, respectively). CONCLUSION: Poorly controlled blood pressure was common in OSA patients with antihypertensive medication. Treatment with BB alone or BB in combination with a diuretic was associated with the lowest systolic pressure in this large clinical cohort.


Assuntos
Hipertensão , Apneia Obstrutiva do Sono , Anti-Hipertensivos/farmacologia , Anti-Hipertensivos/uso terapêutico , Pressão Sanguínea , Bloqueadores dos Canais de Cálcio/uso terapêutico , Criança , Feminino , Humanos , Hipertensão/complicações , Hipertensão/tratamento farmacológico , Masculino , Apneia Obstrutiva do Sono/complicações , Apneia Obstrutiva do Sono/tratamento farmacológico
15.
Med Sci Monit ; 16(11): CR540-4, 2010 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-20980958

RESUMO

BACKGROUND: Surfactant protein D (SP-D) is a promising blood biomarker in patients with chronic obstructive pulmonary disease (COPD). Nevertheless, circulating levels of SP-D are not related to pulmonary functions. In the present exploratory study, we created a simple index of plasma to bronchoalveolar lavage (BAL) fluid ratio of SP-D (pSP-D/bSP-D), and determined whether this index would relate to the severity of airflow limitation and hence represent a superior biomarker than pSP-D alone. MATERIAL/METHODS: In 50 ex and current smokers (mean age 57.6±7.8 years, 74% men), SP-D was measured in BAL fluid and plasma samples, and the relationships between spirometric variables and a composite parameter - the pSP-D/bSP-D ratio were determined. RESULTS: There was a significant inverse correlation between the pSP-D/bSP-D ratio and the severity of airflow obstruction, as measured by FEV1/FVC (p=0.012). In contrast, no relationship was observed between FEV1/FVC and pSP-D alone. CONCLUSIONS: We suggest that integrating both lung and plasma expression of pneumo-proteins may be more useful than plasma expression alone in developing pneumo-proteins as potential biomarkers in COPD.


Assuntos
Biomarcadores/sangue , Pulmão/metabolismo , Doença Pulmonar Obstrutiva Crônica/sangue , Proteína D Associada a Surfactante Pulmonar/sangue , Idoso , Líquido da Lavagem Broncoalveolar/química , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Doença Pulmonar Obstrutiva Crônica/patologia , Testes de Função Respiratória , Estudos Retrospectivos , Fumar/fisiopatologia
16.
Mediators Inflamm ; 2010: 585989, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-20414465

RESUMO

Chronic obstructive pulmonary disease (COPD) is a major cause of morbidity and mortality worldwide. Low-grade systemic inflammation is considered a hallmark of COPD that potentially links COPD to increased rate of systemic manifestations of the disease. Obesity with/without the metabolic syndrome and cachexia represent two poles of metabolic abnormalities that may relate to systemic inflammation. On one hand systemic inflammatory syndrome likely reflects inflammation in the lungs, i.e. results from lung-to plasma spillover of inflammatory mediators. On the other hand, obesity-related hypoxia results in local inflammatory response within adipose tissue per se, and may contribute to elevations in circulatory mediators by spillover from the adipose tissue to the systemic compartment. The extent to which systemic hypoxia contributes to the adipose tissue inflammation remains unknown. We assume that in patients with COPD and concurrent obesity at least three factors play a role in the systemic inflammatory syndrome: the severity of pulmonary impairment, the degree of obesity-related adipose tissue hypoxia, and the severity of systemic hypoxia due to reduced pulmonary functions. The present review summarizes the epidemiological and clinical evidence linking COPD to obesity, the role of adipose tissue as an endocrine organ, and the role of hypoxia in adipose tissue inflammation.


Assuntos
Tecido Adiposo , Inflamação , Doença Pulmonar Obstrutiva Crônica , Tecido Adiposo/metabolismo , Tecido Adiposo/fisiopatologia , Composição Corporal , Humanos , Hipóxia/metabolismo , Inflamação/imunologia , Inflamação/fisiopatologia , Mediadores da Inflamação/imunologia , Obesidade/epidemiologia , Obesidade/imunologia , Obesidade/fisiopatologia , Doença Pulmonar Obstrutiva Crônica/imunologia , Doença Pulmonar Obstrutiva Crônica/fisiopatologia , Literatura de Revisão como Assunto
17.
Mediators Inflamm ; 2010: 173498, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-21197447

RESUMO

Potential links between metabolic derangements and adipose tissue (AT) inflammation in patients with chronic obstructive pulmonary disease (COPD) are unexplored. We investigated AT expressions of interleukin (IL)-6, tumor necrosis factor (TNF)-α, CD68 (macrophage cell surface receptor), caspase-3, and Bax, and their relationships to the metabolic phenotype in nine cachectic, 12 normal-weight, 12 overweight, and 11 obese patients with COPD (age 62.3 ± 7.2 years). With increasing body mass index, increases in AT expressions of IL-6, TNF-α, and CD68 were observed (P < .001; P = .005; P < .001, resp.), in association with reduced insulin sensitivity (P < .001). No differences were observed between cachectic and normal-weight patients in AT expressions of inflammatory or proapoptotic markers. Adipose tissue CD68 and TNF-α expressions predicted insulin sensitivity independently of known confounders (P = .005; P = .025; R(2) = 0.840). Our results suggest that AT inflammation in obese COPD patients relates to insulin resistance. Cachectic patients remain insulin sensitive, with no AT upregulation of inflammatory or proapoptotic markers.


Assuntos
Tecido Adiposo/patologia , Mediadores da Inflamação/metabolismo , Inflamação/patologia , Doença Pulmonar Obstrutiva Crônica/metabolismo , Doença Pulmonar Obstrutiva Crônica/patologia , Idoso , Antígenos CD/genética , Antígenos de Diferenciação Mielomonocítica/genética , Caquexia/complicações , Caquexia/genética , Caquexia/metabolismo , Caquexia/patologia , Caspase 3/genética , Feminino , Expressão Gênica , Humanos , Resistência à Insulina/fisiologia , Interleucina-6/genética , Masculino , Síndrome Metabólica/complicações , Síndrome Metabólica/genética , Síndrome Metabólica/metabolismo , Pessoa de Meia-Idade , Obesidade/complicações , Obesidade/genética , Obesidade/metabolismo , Obesidade/patologia , Sobrepeso/complicações , Sobrepeso/genética , Sobrepeso/metabolismo , Sobrepeso/patologia , Paniculite/complicações , Paniculite/genética , Paniculite/metabolismo , Paniculite/patologia , Fenótipo , Doença Pulmonar Obstrutiva Crônica/complicações , Doença Pulmonar Obstrutiva Crônica/genética , Receptores Tipo I de Fatores de Necrose Tumoral/genética , Fator de Necrose Tumoral alfa/genética , Proteína X Associada a bcl-2/genética
18.
Tumori ; 96(1): 84-9, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-20437863

RESUMO

AIMS AND BACKGROUND: An increased incidence of neuroendocrine tumors in the last decade has been noticed worldwide. Our purpose was to study the characteristics, surgical approaches and outcome in patients with primary bronchopulmonary carcinoid tumors. METHODS: Between 2001 and 2007, bronchopulmonary carcinoid tumors were removed in 11 of a total of 287 patients who underwent surgery for primary lung malignancies in our tertiary referral center. RESULTS: The patient group consisted of 3 men and 8 women (mean age 52.9 +/- 5.2 years, range 19-76 years). At presentation, 10 of 11 patients were symptomatic, with cough, pneumonia, breathlessness and hemoptysis being the most frequent symptoms. Histological findings revealed typical carcinoid in 10 patients and atypical carcinoid in one. The surgical approach included 8 lung resections (6 lobectomies, 1 bilobectomy, 1 segmentectomy), and 3 bronchoplastic tumor removals. In 2008, clinical examination and chest X-ray revealed no recurrence of the carcinoid and no long-term postoperative complications in any patient. CONCLUSIONS: In the light of our study and the review of the literature we conclude that early recognition of primary bronchopulmonary carcinoid tumors followed by adequate surgical removal of the malignancy are essential for complete remission of the disease.


Assuntos
Neoplasias Brônquicas/diagnóstico , Neoplasias Brônquicas/cirurgia , Tumor Carcinoide/diagnóstico , Tumor Carcinoide/cirurgia , Neoplasias Pulmonares/diagnóstico , Neoplasias Pulmonares/cirurgia , Adulto , Idoso , Neoplasias Brônquicas/patologia , Broncoscopia , Tumor Carcinoide/patologia , Detecção Precoce de Câncer , Feminino , Humanos , Neoplasias Pulmonares/patologia , Masculino , Pessoa de Meia-Idade , Tomografia Computadorizada por Raios X
19.
J Health Psychol ; 25(13-14): 2141-2150, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-30010423

RESUMO

Coaching as a lifestyle modification approach to weight management is insufficiently explored in obstructive sleep apnoea. We investigated anthropometry and body composition after 20 weeks of Erickson coaching in 26 obstructive sleep apnoea patients (19 males; 47.6 ± 2.4 years). Body weight, neck circumference, waist-to-hip ratio and %body fat significantly decreased after 20 weeks. The mean weight loss was 5.2 per cent ± 1.0 per cent; 20 (77%) participants achieved target reduction of >3 per cent. Coaching session attendance (p = 0.006) and reaching personal goal related to physical performance (p = 0.044) were independently associated with weight loss (multiple regression model R2 = 0.608, p < 0.001). Erickson solution-focused coaching supports adherence to healthy lifestyle and weight reduction in obstructive sleep apnoea.


Assuntos
Tutoria , Obesidade , Apneia Obstrutiva do Sono , Índice de Massa Corporal , Feminino , Humanos , Masculino , Obesidade/complicações , Obesidade/terapia , Projetos Piloto , Apneia Obstrutiva do Sono/complicações , Apneia Obstrutiva do Sono/terapia , Redução de Peso
20.
J Health Psychol ; 25(13-14): 2244-2259, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-30101603

RESUMO

We aimed to assess whether hostility and coping self-efficacy are associated with psychological distress in obstructive sleep apnoea patients. Furthermore, we examined whether coping self-efficacy mediates the association between hostility and psychological distress. We included 150 obstructive sleep apnoea patients (Apnoea-Hypopnoea Index ⩾5; 68% male; mean age: 48.9 ± 9.5 years). Regression models showed that hostility and poor coping self-efficacy were strongly associated with psychological distress in obstructive sleep apnoea patients. All assessed coping self-efficacy dimensions mediated the association between hostility and psychological distress. Coping self-efficacy for stopping unpleasant emotions and thoughts showed the strongest association with a lower level of psychological distress.


Assuntos
Adaptação Psicológica , Angústia Psicológica , Apneia Obstrutiva do Sono , Adulto , Feminino , Hostilidade , Humanos , Masculino , Pessoa de Meia-Idade , Autoeficácia
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