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1.
Psychol Med ; 48(6): 961-973, 2018 04.
Artigo em Inglês | MEDLINE | ID: mdl-28929992

RESUMO

BACKGROUND: There has been increasing evidence that chronic low-grade inflammation is associated with mood disorders. However, the findings have been inconsistent because of heterogeneity across studies and methodological limitations. Our aim is to prospectively evaluate the bi-directional associations between inflammatory markers including interleukin (IL)-6, tumor necrosis factor (TNF)-α and high sensitivity C-reactive protein (hsCRP) with mood disorders. METHODS: The sample consisted of 3118 participants (53.7% women; mean age: 51.0, s.d. 8.8 years), randomly selected from the general population, who underwent comprehensive somatic and psychiatric evaluations at baseline and follow-up (mean follow-up duration = 5.5 years, s.d. 0.6). Current and remitted mood disorders including bipolar and major depressive disorders (MDD) and its subtypes (atypical, melancholic, combined atypical and melancholic, and unspecified) were based on semi-structured diagnostic interviews. Inflammatory biomarkers were analyzed in fasting blood samples. Associations were tested by multiple linear and logistic regression models. RESULTS: Current combined MDD [ß = 0.29, 95% confidence interval (CI) 0.03-0.55] and current atypical MDD (ß = 0.32, 95% CI 0.10-0.55) at baseline were associated with increased levels of hsCRP at follow-up. There was little evidence for inflammation markers at baseline predicting mood disorders at follow-up. CONCLUSIONS: The prospective unidirectional association between current MDD subtype with atypical features and hsCRP levels at follow-up suggests that inflammation may be a consequence of this condition. The role of inflammation, particularly hsCRP that is critically involved in cardiovascular diseases, warrants further study. Future research that examines potential influences of medications on inflammatory processes is indicated.


Assuntos
Biomarcadores/sangue , Transtorno Depressivo Maior/sangue , Transtorno Depressivo Maior/epidemiologia , Inflamação/sangue , Adulto , Idoso , Proteína C-Reativa/análise , Feminino , Humanos , Interleucina-6/sangue , Modelos Lineares , Modelos Logísticos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Escalas de Graduação Psiquiátrica , Suíça/epidemiologia , Fator de Necrose Tumoral alfa/sangue
2.
Soc Psychiatry Psychiatr Epidemiol ; 52(9): 1169-1182, 2017 09.
Artigo em Inglês | MEDLINE | ID: mdl-28748306

RESUMO

PURPOSE: Given the broad range of biopsychosocial difficulties resulting from major depressive disorder (MDD), reliable evidence for predictors of improved mental health is essential, particularly from unbiased prospective community samples. Consequently, a broad spectrum of potential clinical and non-clinical predictors of improved mental health, defined as an absence of current major depressive episode (MDE) at follow-up, were examined over a 5-year period in an adult community sample. METHODS: The longitudinal population-based PsyCoLaus study from the city of Lausanne, Switzerland, was used. Subjects having a lifetime MDD with a current MDE at baseline assessment were selected, resulting in a subsample of 210 subjects. Logistic regressions were applied to the data. RESULTS: Coping styles were the most important predictive factors in the present study. More specifically, low emotion-oriented coping and informal help-seeking behaviour at baseline were associated with the absence of an MDD diagnosis at follow-up. Surprisingly, neither formal help-seeking behaviour, nor psychopharmacological treatment, nor childhood adversities, nor depression subtypes turned out to be relevant predictors in the current study. CONCLUSIONS: The paramount role of coping styles as predictors of improvement in depression found in the present study might be a valuable target for resource-oriented therapeutic models. On the one hand, the positive impact of low emotion-oriented coping highlights the utility of clinical interventions interrupting excessive mental ruminations during MDE. On the other hand, the importance of informal social networks raises questions regarding how to enlarge the personal network of affected subjects and on how to best support informal caregivers.


Assuntos
Adaptação Psicológica , Transtorno Depressivo Maior/psicologia , Transtorno Depressivo Maior/terapia , Emoções , Comportamento de Busca de Ajuda , Adulto , Idoso , Transtorno Depressivo Maior/epidemiologia , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Suíça/epidemiologia , Resultado do Tratamento
3.
Mol Psychiatry ; 22(7): 1026-1034, 2017 07.
Artigo em Inglês | MEDLINE | ID: mdl-27725658

RESUMO

The mechanisms and temporal sequence underlying the association between major depressive disorder (MDD) and cardio-metabolic diseases are still poorly understood. Recent research suggests subtyping depression to study the mechanisms underlying its association with biological correlates. Accordingly, our aims were to (1) assess the prospective associations of the atypical, melancholic and unspecified subtypes of MDD with changes of fasting glucose, high-density lipoprotein-cholesterol, triglycerides, systolic blood pressure and the incidence of the metabolic syndrome, (2) determine the potential mediating role of inflammatory marker or adipokine concentrations, eating behaviors and changes in waist circumference during follow-up. Data stemmed from CoLaus|PsyCoLaus, a prospective cohort study including 35-66-year-old randomly selected residents of an urban area. Among the Caucasian participants who underwent the physical and psychiatric baseline evaluations, 2813 (87% participation rate) also accepted the physical follow-up exam (mean follow-up duration=5.5 years). Symptoms of mental disorders were elicited using a semi-structured interview. The atypical MDD subtype, and only this subtype, was prospectively associated with a higher incidence of the metabolic syndrome (OR=2.49; 95% CI 1.30-4.77), a steeper increase of waist circumference (ß=2.41; 95% CI 1.19-3.63) and independently of this, with a steeper increase of the fasting glucose level (ß=131; 95% CI 38-225) during follow-up. These associations were not attributable to or mediated by inflammatory marker or adipokine concentrations, eating behaviors, comorbid psychiatric disorders or lifestyle factors. Accordingly, our results further support the subtyping of MDD and highlight the particular need for prevention and treatment of metabolic consequences in patients with atypical MDD.


Assuntos
Transtorno Depressivo Maior/complicações , Transtorno Depressivo Maior/metabolismo , Adulto , Glicemia/metabolismo , HDL-Colesterol/sangue , Comorbidade , Depressão/complicações , Transtorno Depressivo Maior/classificação , Transtorno Depressivo Maior/diagnóstico , Feminino , Cardiopatias/genética , Cardiopatias/metabolismo , Humanos , Incidência , Estilo de Vida , Masculino , Doenças Metabólicas/genética , Doenças Metabólicas/metabolismo , Síndrome Metabólica/epidemiologia , Pessoa de Meia-Idade , Estudos Prospectivos , Fatores de Risco , Suíça , Triglicerídeos/sangue , Circunferência da Cintura
4.
Mol Psychiatry ; 19(2): 209-13, 2014 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-24126925

RESUMO

There has been increasing attention to the subgroups of mood disorders and their boundaries with other mental disorders, particularly psychoses. The goals of the present paper were (1) to assess the familial aggregation and co-aggregation patterns of the full spectrum of mood disorders (that is, bipolar, schizoaffective (SAF), major depression) based on contemporary diagnostic criteria; and (2) to evaluate the familial specificity of the major subgroups of mood disorders, including psychotic, manic and major depressive episodes (MDEs). The sample included 293 patients with a lifetime diagnosis of SAF disorder, bipolar disorder and major depressive disorder (MDD), 110 orthopedic controls, and 1734 adult first-degree relatives. The diagnostic assignment was based on all available information, including direct diagnostic interviews, family history reports and medical records. Our findings revealed specificity of the familial aggregation of psychosis (odds ratio (OR)=2.9, confidence interval (CI): 1.1-7.7), mania (OR=6.4, CI: 2.2-18.7) and MDEs (OR=2.0, CI: 1.5-2.7) but not hypomania (OR=1.3, CI: 0.5-3.6). There was no evidence for cross-transmission of mania and MDEs (OR=.7, CI:.5-1.1), psychosis and mania (OR=1.0, CI:.4-2.7) or psychosis and MDEs (OR=1.0, CI:.7-1.4). The strong familial specificity of psychotic, manic and MDEs in this largest controlled contemporary family study challenges the growing assertion that the major types of mood disorders are manifestations of a common underlying diathesis.


Assuntos
Transtorno Bipolar/epidemiologia , Transtorno Depressivo Maior/epidemiologia , Transtornos Psicóticos/epidemiologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Transtorno Bipolar/diagnóstico , Transtorno Depressivo Maior/diagnóstico , Suscetibilidade a Doenças , Saúde da Família , Feminino , Humanos , Entrevista Psicológica , Masculino , Pessoa de Meia-Idade , Razão de Chances , Transtornos Psicóticos/diagnóstico , Adulto Jovem
5.
Neuropathol Appl Neurobiol ; 39(7): 736-49, 2013 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-23452291

RESUMO

AIMS: Sporadic inclusion body myositis (s-IBM) is characterized by rimmed vacuole formation and misfolded protein accumulation. Intracellular protein aggregates are cleared by autophagy. When autophagy is blocked aggregates accumulate, resulting in abnormal rimmed vacuole formation. This study investigated the autophagy-lysosome pathway contribution to rimmed vacuole accumulation. METHODS: Autophagy was studied in muscle biopsy specimens obtained from eleven s-IBM patients, one suspected hereditary IBM patient, nine patients with other inflammatory myopathies and nine non-myopathic patients as controls. The analysis employed morphometric methods applied to immunohistochemistry using the endosome marker Clathrin, essential proteins of the autophagic cascade such as AuTophaGy-related protein ATG5, splicing variants of microtubule-associated protein light chain 3a (LC3a) and LC3b, compared with Beclin 1, the major autophagy regulator of both the initiation phase and late endosome/lysosome fusion of the autophagy-lysosome pathway. RESULTS: In muscle biopsies of s-IBM patients, an increased expression of Clathrin, ATG5, LC3a, LC3b and Beclin 1 was shown. Moreover, the inflammatory components of the disease, essentially lymphocytes, were preferentially distributed around the Beclin 1(+) myofibres. These affected myofibres also showed a moderate sarcoplasmic accumulation of SMI-31(+) phospho-tau paired helical filaments. CONCLUSION: The overexpression of autophagy markers linked to the decreased clearance of misfolded proteins, including SMI-31, and rimmed vacuoles accumulation may exhaust cellular resources and lead to cell death.


Assuntos
Autofagia/fisiologia , Músculo Esquelético/metabolismo , Miosite de Corpos de Inclusão/metabolismo , Miosite/metabolismo , Proteínas/metabolismo , Adolescente , Adulto , Idoso , Biomarcadores/metabolismo , Biópsia , Feminino , Humanos , Lisossomos/metabolismo , Masculino , Pessoa de Meia-Idade , Dados de Sequência Molecular , Músculo Esquelético/patologia , Miosite de Corpos de Inclusão/patologia , Adulto Jovem
6.
Allergy ; 66(12): 1570-9, 2011 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-21923669

RESUMO

BACKGROUND: Several cross-sectional studies during the past 10 years have observed an increased risk of allergic outcomes for children living in damp or mouldy environments. OBJECTIVE: The objective of this study was to investigate whether reported mould or dampness exposure in early life is associated with the development of allergic disorders in children from eight European birth cohorts. METHODS: We analysed data from 31 742 children from eight ongoing European birth cohorts. Exposure to mould and allergic health outcomes were assessed by parental questionnaires at different time points. Meta-analyses with fixed- and random-effect models were applied. The number of the studies included in each analysis varied based on the outcome data available for each cohort. RESULTS: Exposure to visible mould and/or dampness during first 2 years of life was associated with an increased risk of developing asthma: there was a significant association with early asthma symptoms in meta-analyses of four cohorts [0-2 years: adjusted odds ratios (aOR), 1.39 (95% CI, 1.05-1.84)] and with asthma later in childhood in six cohorts [6-8 years: aOR, 1.09 (95% CI, 0.90-1.32) and 3-10 years: aOR, 1.10 (95% CI, 0.90-1.34)]. A statistically significant association was observed in six cohorts with symptoms of allergic rhinitis at school age [6-8 years: aOR, 1.12 (1.02-1.23)] and at any time point between 3 and 10 years [aOR, 1.18 (1.09-1.28)]. CONCLUSION: These findings suggest that a mouldy home environment in early life is associated with an increased risk of asthma particularly in young children and allergic rhinitis symptoms in school-age children.


Assuntos
Asma/epidemiologia , Exposição Ambiental , Fungos/imunologia , Hipersensibilidade/epidemiologia , Alérgenos/imunologia , Antígenos de Fungos/imunologia , Asma/etiologia , Asma/imunologia , Criança , Pré-Escolar , Feminino , Humanos , Hipersensibilidade/etiologia , Hipersensibilidade/imunologia , Lactente , Recém-Nascido , Masculino , Rinite/epidemiologia , Rinite/etiologia , Rinite/imunologia , Fatores de Risco
8.
Eur Respir J ; 36(6): 1248-58, 2010 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-20530032

RESUMO

Primary ciliary dyskinesia (PCD) is a hereditary disorder of mucociliary clearance causing chronic upper and lower airways disease. We determined the number of patients with diagnosed PCD across Europe, described age at diagnosis and determined risk factors for late diagnosis. Centres treating children with PCD in Europe answered questionnaires and provided anonymous patient lists. In total, 223 centres from 26 countries reported 1,009 patients aged < 20 yrs. Reported cases per million children (for 5-14 yr olds) were highest in Cyprus (111), Switzerland (47) and Denmark (46). Overall, 57% were males and 48% had situs inversus. Median age at diagnosis was 5.3 yrs, lower in children with situs inversus (3.5 versus 5.8 yrs; p < 0.001) and in children treated in large centres (4.1 versus 4.8 yrs; p = 0.002). Adjusted age at diagnosis was 5.0 yrs in Western Europe, 4.8 yrs in the British Isles, 5.5 yrs in Northern Europe, 6.8 yrs in Eastern Europe and 6.5 yrs in Southern Europe (p < 0.001). This strongly correlated with general government expenditures on health (p < 0.001). This European survey suggests that PCD in children is under-diagnosed and diagnosed late, particularly in countries with low health expenditures. Prospective studies should assess the impact this delay might have on patient prognosis and on health economic costs across Europe.


Assuntos
Síndrome de Kartagener/diagnóstico , Situs Inversus/diagnóstico , Adolescente , Comitês Consultivos , Criança , Pré-Escolar , Estudos Transversais , Europa (Continente) , Feminino , Custos de Cuidados de Saúde , Humanos , Síndrome de Kartagener/economia , Síndrome de Kartagener/epidemiologia , Masculino , Depuração Mucociliar , Situs Inversus/economia , Situs Inversus/epidemiologia
9.
Eur Respir J ; 34(6): 1264-76, 2009 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-19948909

RESUMO

Primary ciliary dyskinesia (PCD) is associated with abnormal ciliary structure and function, which results in retention of mucus and bacteria in the respiratory tract, leading to chronic oto-sino-pulmonary disease, situs abnormalities and abnormal sperm motility. The diagnosis of PCD requires the presence of the characteristic clinical phenotype and either specific ultrastructural ciliary defects identified by transmission electron microscopy or evidence of abnormal ciliary function. Although the management of children affected with PCD remains uncertain and evidence is limited, it remains important to follow-up these patients with an adequate and shared care system in order to prevent future lung damage. This European Respiratory Society consensus statement on the management of children with PCD formulates recommendations regarding diagnostic and therapeutic approaches in order to permit a more accurate approach in these patients. Large well-designed randomised controlled trials, with clear description of patients, are required in order to improve these recommendations on diagnostic and treatment approaches in this disease.


Assuntos
Síndrome de Kartagener/diagnóstico , Síndrome de Kartagener/terapia , Adulto , Criança , Ensaios Clínicos como Assunto , Feminino , Humanos , Síndrome de Kartagener/epidemiologia , Síndrome de Kartagener/genética , Masculino , Microscopia Eletrônica de Transmissão/métodos , Fenótipo , Pneumologia/métodos , Sistema Respiratório/microbiologia , Motilidade dos Espermatozoides , Resultado do Tratamento
10.
Eur Respir J ; 33(3): 486-93, 2009 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-19010983

RESUMO

The response to beta(2)-agonists differs between asthmatics and has been linked to subsequent adverse events, even death. Possible determinants include beta(2)-adrenoceptor genotype at position 16, lung function and airway hyperresponsiveness. Fluctuation analysis provides a simple parameter alpha measuring the complex correlation properties of day-to-day peak expiratory flow. The present study investigated whether alpha predicts clinical response to beta(2)-agonist treatment, taking into account other conventional predictors. Analysis was performed on previously published twice-daily peak expiratory flow measurements in 66 asthmatic adults over three 6-month randomised order treatment periods: placebo, salbutamol and salmeterol. Multiple linear regression was used to determine the association between alpha during the placebo period and response to treatment (change in the number of days with symptoms), taking into account other predictors namely beta(2)-adrenoceptor genotype, lung function and its variability, and airway hyperresponsiveness. The current authors found that alpha measured during the placebo period considerably improved the prediction of response to salmeterol treatment, taking into account genotype, lung function or its variability, or airway hyperresponsiveness. The present study provides further evidence that response to beta(2)-agonists is related to the time correlation properties of lung function in asthma. The current authors conclude that fluctuation analysis of lung function offers a novel predictor to identify patients who may respond well or poorly to treatment.


Assuntos
Agonistas Adrenérgicos beta/uso terapêutico , Pneumopatias Obstrutivas/tratamento farmacológico , Pulmão/metabolismo , Adulto , Albuterol/análogos & derivados , Albuterol/uso terapêutico , Feminino , Genótipo , Humanos , Masculino , Pessoa de Meia-Idade , Modelos Biológicos , Pneumologia/métodos , Análise de Regressão , Xinafoato de Salmeterol , Fatores de Tempo , Resultado do Tratamento
11.
Calcif Tissue Int ; 82(3): 221-8, 2008 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-18265928

RESUMO

Anabolic skeletal agents have recently broadened the therapeutic options for osteoporosis by directly stimulating bone formation and improving bone turnover, bone density, bone size, and bone microarchitecture. We recently demonstrated that two new L: -carnitine derivatives, L: -carnitine fumarate (LC) and isovaleryl-L: -carnitine fumarate (Iso-V-LC), stimulated osteoblast proliferation and differentiation. We here investigated, by histomorphometry in a mouse model of osteoporosis, the impact of these compounds on the repair of trabecular bone and the osteoblast involvement in this process. Fifty-nine inbred adult female CD1 mice in pregnancy were assigned to four treatment groups: (1) controls, mice fed a standard normocalcemic pre- and postpartal diet; (2) Hypo, mice fed a low-calcium isocaloric prepartal diet and a standard postpartal diet; (3) LC, mice fed a group 2-type diet supplemented post-partum with LC; (4) Iso-V-LC, mice fed a group 2-type diet supplemented post-partum with Iso-V-LC. Bone volume/total volume ratio (BV/TV), bone perimeter, osteoblast surface/bone surface, and osteoblast number/bone surface were measured from sections of L3 and L4 vertebral bodies obtained from animals killed on the day of delivery (controls and Hypo) and on days 7, 14, and 21 after delivery (all groups). BV/TV and all osteoblast-based indexes were significantly higher in LC and Iso-V-LC than in Hypo mice at each time point, and Iso-V-LC at the end of the treatment attained levels observed in controls. In conclusion, Iso-V-LC and, to a lesser extent, LC accelerated the recovery of normal BV/TV level after a hypocalcemic diet.


Assuntos
Carnitina/farmacologia , Osteoporose/tratamento farmacológico , Animais , Calcificação Fisiológica/efeitos dos fármacos , Calcificação Fisiológica/fisiologia , Cálcio/metabolismo , Cálcio da Dieta/administração & dosagem , Carnitina/análogos & derivados , Contagem de Células , Proliferação de Células/efeitos dos fármacos , Modelos Animais de Doenças , Quimioterapia Combinada , Feminino , Fumaratos , Vértebras Lombares/efeitos dos fármacos , Vértebras Lombares/metabolismo , Vértebras Lombares/patologia , Camundongos , Camundongos Endogâmicos , Osteoblastos/efeitos dos fármacos , Osteoblastos/fisiologia , Osteoporose/patologia , Gravidez
12.
Pediatr Blood Cancer ; 50(1): 46-51, 2008 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-17226849

RESUMO

BACKGROUND: This report describes the incidence of childhood cancer in Switzerland, based on the data from the Swiss Childhood Cancer Registry (SCCR), a national hospital-based cancer registry with very high coverage, founded in 1976 by the Swiss Paediatric Oncology Group (SPOG). PROCEDURE: Malignancies were coded according to the International Classification of Childhood Cancer (ICCC-3). Incidence rates per 100,000 person-years were calculated for all malignancies and groups of malignancies in Swiss residents less than 15 years of age for the decade 1995-2004. RESULTS: The SCCR annually registered on average 174 new cases of cancer in Swiss residents aged <15 years, with a median age at diagnosis of 5.6 years. The crude incidence of childhood cancer in children aged <15 years was 13.5, higher for boys (15.0 per 100,000) than for girls (12.1 per 100,000), and was nearly twice as high in the first 5 years of life (19.3 per 100,000) than in the age group 5 to 14 years (10.8 per 100,000). CONCLUSION: Incidence of childhood cancers in the SCCR was similar to neighbouring countries and to data published by regional cancer registries in Switzerland for the same period, suggesting good completeness of registration. This makes the SCCR a valuable resource for national and international research on childhood cancer.


Assuntos
Neoplasias/epidemiologia , Adolescente , Criança , Pré-Escolar , Feminino , Humanos , Incidência , Lactente , Masculino , Sistema de Registros , Suíça/epidemiologia
13.
Eur Respir J ; 31(2): 326-33, 2008 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-18032441

RESUMO

Epidemiological data on snoring from preschool children are scarce, although habitual snoring (snoring on almost all nights) has been associated with poor long-term outcomes. In a population survey of 6,811 children aged 1-4 yrs (from Leicestershire, UK) the present authors determined prevalence, severity and risk factors for snoring, especially habitual snoring. In 59.7% of the children, parents reported snoring in the previous 12 months, including 7.9% with habitual snoring and 0.9% with habitual snoring and sleep disturbance. Prevalence of habitual snoring increased with age from 6.6% in 1-yr-olds to 13.0% in 4-yr-olds. Habitual snoring was associated with: one and both parents smoking (adjusted odds ratio (OR) 1.46 and 2.09, respectively); road traffic (OR 1.23); single parent (OR 1.60); and in White but not South Asian children, socioeconomic deprivation (OR 1.25 and 2.03 for middle and upper thirds of Townsend score, respectively). Respiratory tract symptoms related to atopic disorders and to respiratory infections were strongly associated with snoring; however, body mass index was not. In conclusion, habitual snoring is common in preschool children with one-third of cases attributable to avoidable risk factors. The strong association with atopic disorders, viral infections and environmental exposures suggests a complex aetiology, based on a general vulnerability of the respiratory tract.


Assuntos
Exposição Ambiental/efeitos adversos , Síndromes da Apneia do Sono/prevenção & controle , Ronco/diagnóstico , Ronco/epidemiologia , Distribuição por Idade , Índice de Massa Corporal , Pré-Escolar , Estudos Transversais , Feminino , Seguimentos , Humanos , Lactente , Masculino , Prevalência , Probabilidade , Fatores de Risco , Índice de Gravidade de Doença , Distribuição por Sexo , Fatores Socioeconômicos , Inquéritos e Questionários , Reino Unido/epidemiologia
14.
Clin Exp Allergy ; 37(12): 1738-46, 2007 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-18028098

RESUMO

BACKGROUND: Epidemiological data for south Asian children in the United Kingdom are contradictory, showing a lower prevalence of wheeze, but a higher rate of medical consultations and admissions for asthma compared with white children. These studies have not distinguished different asthma phenotypes or controlled for varying environmental exposures. OBJECTIVE: To compare the prevalence of wheeze and related health-service use in south Asian and white pre-schoolchildren in the United Kingdom, taking into account wheeze phenotype (viral and multiple wheeze) and environmental exposures. METHODS: A postal questionnaire was completed by parents of a population-based sample of 4366 white and 1714 south Asian children aged 1-4 years in Leicestershire, UK. Children were classified as having viral wheeze or multiple trigger wheeze. RESULTS: The prevalence of current wheeze was 35.6% in white and 25.5% in south Asian 1-year-olds (P<0.001), and 21.9% and 20.9%, respectively, in children aged 2-4 years. Odds ratios (ORs) (95% confidence interval) for multiple wheeze and for viral wheeze, comparing south Asian with white children, were 2.21 (1.19-4.09) and 1.43 (0.77-2.65) in 2-4-year-olds after controlling for socio-economic conditions, environmental exposures and family history. In 1-year-olds, the respective ORs for multiple and viral wheeze were 0.66 (0.47-0.92) and 0.81 (0.64-1.03). Reported GP consultation rates for wheeze and hospital admissions were greater in south Asian children aged 2-4 years, even after adjustment for severity, but the use of inhaled corticosteroids was lower. CONCLUSIONS: South Asian 2-4-year-olds are more likely than white children to have multiple wheeze (a condition with many features of chronic atopic asthma), after taking into account ethnic differences in exposure to some environmental agents. Undertreatment with inhaled corticosteroids might partly explain their greater use of health services.


Assuntos
Povo Asiático , Asma/etnologia , Asma/epidemiologia , Serviços de Saúde/estatística & dados numéricos , Sons Respiratórios , População Branca , Asma/patologia , Pré-Escolar , Inglaterra/epidemiologia , Inglaterra/etnologia , Feminino , Humanos , Lactente , Masculino , Fenótipo , Prevalência
15.
Clin Exp Allergy ; 37(1): 47-53, 2007 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-17210041

RESUMO

BACKGROUND: Studies of immigrants suggest that the environment during fetal life and duration of residence in the host country might influence the development of asthma. Little is known about the importance of the timing of the exposure in the host country and whether migrants might be especially vulnerable in certain age windows. OBJECTIVE: We compared the reported prevalence of asthma between young white and south Asian women in the United Kingdom, and investigated associations with country of birth and age at immigration. METHODS: A questionnaire on atopic disorders was posted to 2380 south Asian and 5796 white young mothers randomly sampled in Leicestershire. Data on ethnicity were also available from maternity records. Data were analysed using multivariable logistic regression and a propensity score approach. Results The reported prevalence of asthma was 10.9% in south Asian and 21.8% in white women. South Asian women who migrated to the United Kingdom aged 5 years or older reported less asthma (6.5%) than those born in the United Kingdom or who migrated before age 5 (16.0%), with an adjusted odds ratio of 0.38 [95% Confidence Interval 0.23-0.64, P<0.001]. For those who migrated aged over 5 years, the prevalence did not alter with the duration of residence in the United Kingdom. Current exposure to common environmental risk factors had relatively little effect on prevalence estimates. CONCLUSION: These data from a large population-based study support the hypothesis that early life environmental factors influence the risk of adult asthma.


Assuntos
Asma/epidemiologia , Adulto , Fatores Etários , Povo Asiático , Asma/etnologia , Bangladesh/etnologia , Dieta , Emigração e Imigração , Feminino , Humanos , Incidência , Índia/etnologia , Modelos Logísticos , Paquistão/etnologia , Vigilância da População , Fumar , Classe Social , Inquéritos e Questionários , Reino Unido
16.
Pediatr Pulmonol ; 42(1): 41-50, 2007 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-17123315

RESUMO

Respiratory symptoms are common in infancy. Nevertheless, few prospective birth cohort studies have studied the epidemiology of respiratory symptoms in normal infants. The aim of this study was to prospectively obtain reliable data on incidence, severity, and determinants of common respiratory symptoms (including cough and wheeze) in normal infants and to determine factors associated with these symptoms. In a prospective population-based birth cohort, we assessed respiratory symptoms during the first year of life by weekly phone calls to the mothers. Poisson regression was used to examine the association between symptoms and various risk factors. In the first year of life, respiratory symptoms occurred in 181/195 infants (93%), more severe symptoms in 89 (46%). The average infant had respiratory symptoms for 4 weeks and 90% had symptoms for less than 12 weeks (range 0 to 23). Male sex, higher birth weight, maternal asthma, having older siblings and nursery care were associated with more, maternal hay fever with fewer respiratory symptoms. The association with prenatal maternal smoking decreased with time since birth. This study provides reliable data on the frequency of cough and wheeze during the first year of life in healthy infants; this may help in the interpretation of published hospital and community-based studies. The apparently reduced risk in children of mothers with hayfever but no asthma, and the decreasing effect of prenatal smoke exposure over time illustrate the complexity of respiratory pathology in the first year of life.


Assuntos
Asma/epidemiologia , Tosse/epidemiologia , Mecânica Respiratória , Estudos de Coortes , Feminino , Humanos , Incidência , Lactente , Recém-Nascido , Masculino , Distribuição de Poisson , Estudos Prospectivos , Valores de Referência , Consulta Remota , Sons Respiratórios , Fatores de Risco , Índice de Gravidade de Doença , Inquéritos e Questionários
17.
Eur Respir J ; 28(6): 1124-30, 2006 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-16870670

RESUMO

The epidemiology of wheeze in children, when assessed by questionnaires, is dependent on parents' understanding of the term "wheeze". In a questionnaire survey of a random population sample of 4,236 children aged 6-10 yrs, parents' definition of wheeze was assessed. Predictors of a correct definition were determined and the potential impact of incorrect answers on prevalence estimates from the survey was assessed. Current wheeze was reported by 13.2% of children. Overall, 83.5% of parents correctly identified "whistling or squeaking" as the definition of wheeze; the proportion was higher for parents reporting wheezy children (90.4%). Frequent attacks of reported wheeze (adjusted odds ratio (OR) 3.0), maternal history of asthma (OR 1.5) and maternal education (OR 1.5) were significantly associated with a correct answer, while the converse was found for South Asian ethnicity (OR 0.6), first language not English (OR 0.6) and living in a deprived neighbourhood (OR 0.6). In summary, the present study showed that misunderstanding could lead to an important bias in assessing the prevalence of wheeze, resulting in an underestimation in children from South Asian and deprived family backgrounds. Prevalence estimates for the most severe categories of wheeze might be less affected by this bias and questionnaire surveys on wheeze should incorporate measures of parents' understanding of the term wheeze.


Assuntos
Asma/epidemiologia , Pais/psicologia , Sons Respiratórios , Asma/diagnóstico , Conscientização , Criança , Pré-Escolar , Compreensão , Inquéritos Epidemiológicos , Humanos , Lactente , Inquéritos e Questionários , Reino Unido/epidemiologia
18.
Pediatr Pulmonol ; 41(9): 829-38, 2006 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-16847878

RESUMO

The current study aimed to assess prevalence and distribution of use of asthma medication for wheeze in pre-school children in the community. We sent a postal questionnaire to the parents of a random population-based sample of 4,277 UK children aged 1-5 years; 3,410 participated (children of south Asian decent were deliberately over-represented). During the previous 12 months, 18% of the children were reported to have received bronchodilators, 8% inhaled corticosteroids (ICS) and 3% oral corticosteroids. Among current wheezers these proportions were 55%, 25%, and 12%, respectively. Use of ICS increased with reported severity of wheeze, but did not reach 60% even in the most severe category. In contrast, 42% of children receiving ICS reported no or very infrequent recent wheeze. Among children with the episodic viral wheeze phenotype, 17% received ICS compared with 40% among multiple-trigger wheezers. Use of ICS by current wheezers was less common in children of South Asian ethnicity and in girls. Although a high proportion of pre-school children in the community used asthma inhalers, treatment seemed to be insufficiently adjusted to severity or phenotype of wheeze, with relative under-treatment of severe wheeze with ICS, especially in girls and South Asian children, but apparent over-treatment of mild and episodic viral wheeze and chronic cough.


Assuntos
Asma/tratamento farmacológico , Broncodilatadores/uso terapêutico , Sons Respiratórios , Pré-Escolar , Uso de Medicamentos/estatística & dados numéricos , Feminino , Humanos , Lactente , Masculino
19.
Kidney Int ; 69(3): 538-45, 2006 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-16395261

RESUMO

The current implementation into nephrology clinical practice of guidelines on treatment of cardiovascular (CV) risk factors in chronic kidney disease (CKD) is unknown. We designed a cross-sectional analysis to evaluate the prevalence and treatment of eight modifiable CV risk factors in 1058 predialysis CKD patients (stage 3: n=486; stage 4: n=430, stage 5: n=142) followed for at least 1 year in 26 Italian renal clinics. The median nephrology follow-up was 37 months (range: 12-391 months). From stages 3 to 5, hypertension was the main complication (89, 87, and 87%), whereas smoking, high calcium-phosphate product and malnutrition were uncommon. The prevalence of proteinuria (25, 38, and 58%), anemia (16, 32, and 51%) and left ventricular hypertrophy (51, 55, and 64%) significantly increased, while hypercholesterolemia was less frequent in stage 5 (49%) than in stages 4 and 3 (59%). The vast majority of patients received multidrug antihypertensive therapy including inhibitors of renin-angiotensin system; conversely, diuretic treatment was consistently inadequate for both frequency and dose despite scarce implementation of low salt diet (19%). Statins were not prescribed in most hypercholesterolemics (78%), and epoietin treatment was largely overlooked in anemics (78%). The adjusted risk for having a higher number of uncontrolled risk factors rose in the presence of diabetes (odds ratio 1.29, 95% confidence interval 1.00-1.66), history of CV disease (odds ratio 1.48, 95% confidence interval 1.15-1.90) and CKD stages 4 and 5 (odds ratio 1.75, 95% confidence interval 1.37-2.22 and odds ratio 2.85, 95% confidence interval 2.01-4.04, respectively). In the tertiary care of CKD, treatment of hypertension is largely inadequate, whereas therapy of anemia and dyslipidemia is frequently omitted. The risk of not achieving therapeutic targets is higher in patients with diabetes, CV disease and more advanced CKD.


Assuntos
Doenças Cardiovasculares/etiologia , Nefropatias/complicações , Nefropatias/terapia , Idoso , Idoso de 80 Anos ou mais , Anti-Hipertensivos/uso terapêutico , Doenças Cardiovasculares/epidemiologia , Doença Crônica , Estudos Transversais , Diabetes Mellitus/epidemiologia , Feminino , Humanos , Hipercolesterolemia/epidemiologia , Hipercolesterolemia/etiologia , Hipertensão/tratamento farmacológico , Hipertensão/epidemiologia , Hipertensão/etiologia , Hipertrofia Ventricular Esquerda/epidemiologia , Hipertrofia Ventricular Esquerda/etiologia , Itália/epidemiologia , Nefropatias/epidemiologia , Nefropatias/fisiopatologia , Masculino , Pessoa de Meia-Idade , Razão de Chances , Guias de Prática Clínica como Assunto , Prevalência , Proteinúria/epidemiologia , Proteinúria/etiologia , Fatores de Risco , Índice de Gravidade de Doença
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