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1.
Occup Med (Lond) ; 74(3): 235-241, 2024 05 09.
Artigo em Inglês | MEDLINE | ID: mdl-38661817

RESUMO

BACKGROUND: Job burnout is associated with job stress but also with mental health symptoms, depression and anxiety. AIMS: This study aims to evaluate the effect of job stress on burnout without the effect of depression and anxiety. METHODS: A cross-sectional study was conducted in 2015 among 673 employees (88% female) from four public service sectors in Pori, Finland. Job burnout was assessed with the Bergen Burnout Indicator (BBI-15). Job stress was assessed by combining psychological risk factors (demand control, effort rewards and mental workload). Respondents who reported symptoms of depression and anxiety were excluded from the analyses. RESULTS: Of the eligible study subjects (n = 617), 10% reported symptoms of at least mild burnout but only 1% severe burnout. The burnout symptoms varied from 6% to 21% by sector of public service. Job burnout was cumulatively associated with job stress factors. One job stress factor increased the risk of burnout 2-fold (relative risk [RR] 2.13; confidence interval [CI] 0.97-4.68), two factors 6-fold (RR 6.56; 2.92-14.8Or), and three factors even more (RR 23.5; CI 8.67-63.8). Similar trends were observed in the analysis of job burnout components (exhaustion, cynicism and professional inadequacy). CONCLUSIONS: Our results indicate that job burnout is also strongly associated with job stress in employees who do not have depressive or anxiety symptoms. As job burnout may precede clinical depression or reduce productivity and well-being at work, it is essential to perform surveys to monitor burnout symptoms among the workforce, and design interventions to prevent remarkable job strain.


Assuntos
Ansiedade , Esgotamento Profissional , Depressão , Estresse Ocupacional , Humanos , Finlândia/epidemiologia , Feminino , Masculino , Esgotamento Profissional/psicologia , Esgotamento Profissional/epidemiologia , Estudos Transversais , Adulto , Depressão/epidemiologia , Depressão/psicologia , Pessoa de Meia-Idade , Ansiedade/epidemiologia , Ansiedade/psicologia , Estresse Ocupacional/psicologia , Estresse Ocupacional/epidemiologia , Inquéritos e Questionários , Fatores de Risco , Carga de Trabalho/psicologia , Satisfação no Emprego , Setor Público , Estresse Psicológico/psicologia , Estresse Psicológico/epidemiologia
2.
Brain Behav Immun ; 73: 670-681, 2018 10.
Artigo em Inglês | MEDLINE | ID: mdl-30063972

RESUMO

Ischemic stroke is amongst the leading causes of death and disabilities. The available treatments are suitable for only a fraction of patients and thus novel therapies are urgently needed. Blockage of one of the cerebral arteries leads to massive and persisting inflammatory reaction contributing to the nearby neuronal damage. Targeting the detrimental pathways of neuroinflammation has been suggested to be beneficial in conditions of ischemic stroke. Nuclear receptor 4A-family (NR4A) member Nurr1 has been shown to be a potent modulator of harmful inflammatory reactions, yet the role of Nurr1 in cerebral stroke remains unknown. Here we show for the first time that an agonist for the dimeric transcription factor Nurr1/retinoid X receptor (RXR), HX600, reduces microglia expressed proinflammatory mediators and prevents inflammation induced neuronal death in in vitro co-culture model of neurons and microglia. Importantly, HX600 was protective in a mouse model of permanent middle cerebral artery occlusion and alleviated the stroke induced motor deficits. Along with the anti-inflammatory capacity of HX600 in vitro, treatment of ischemic mice with HX600 reduced ischemia induced Iba-1, p38 and TREM2 immunoreactivities, protected endogenous microglia from ischemia induced death and prevented leukocyte infiltration. These anti-inflammatory functions were associated with reduced levels of brain lysophosphatidylcholines (lysoPCs) and acylcarnitines, metabolites related to proinflammatory events. These data demonstrate that HX600 driven Nurr1 activation is beneficial in ischemic stroke and propose that targeting Nurr1 is a novel candidate for conditions involving neuroinflammatory component.


Assuntos
Dibenzazepinas/farmacologia , Degeneração Neural/prevenção & controle , Membro 2 do Grupo A da Subfamília 4 de Receptores Nucleares/fisiologia , Animais , Encéfalo/metabolismo , Isquemia Encefálica/metabolismo , Isquemia Encefálica/fisiopatologia , Modelos Animais de Doenças , Infarto da Artéria Cerebral Média/metabolismo , Inflamação/metabolismo , Glicoproteínas de Membrana/análise , Glicoproteínas de Membrana/metabolismo , Camundongos , Camundongos Endogâmicos C57BL , Microglia/metabolismo , Neurônios/metabolismo , Fármacos Neuroprotetores/farmacologia , Membro 2 do Grupo A da Subfamília 4 de Receptores Nucleares/agonistas , Cultura Primária de Células , Receptores Citoplasmáticos e Nucleares/metabolismo , Receptores Imunológicos/análise , Receptores Imunológicos/metabolismo , Receptores X de Retinoides/agonistas , Receptores X de Retinoides/fisiologia , Acidente Vascular Cerebral/metabolismo
3.
Diabet Med ; 34(8): 1129-1135, 2017 08.
Artigo em Inglês | MEDLINE | ID: mdl-28508445

RESUMO

AIM: To study both the association between adult height and glucose regulation based on findings from a 75-g oral glucose tolerance test, and the combined effect of height and adiposity on glucose values. METHODS: We conducted a population-based, cross-sectional study among apparently healthy people with high cardiovascular risk living in south-western Finland. The study included 2659 participants aged 45-70 years, who had at least one cardiovascular risk factor but no previously diagnosed diabetes or manifested cardiovascular disease. An oral glucose tolerance test was performed in all participants. Height and weight were measured and BMI was calculated. The participants were divided into five height groups based on normal distribution. For further analysis of the association between height and glucose concentrations the participants were divided into four BMI groups (<25.0 kg/m2 ; 25-29.9 kg/m2 ; 30-34.9 kg/m2 ; ≥35 kg/m2 ). Data were analysed using age-adjusted linear regression models. RESULTS: Height was inversely associated with 2-h plasma glucose, but not with fasting plasma glucose concentration. No gender difference was observed. The 2-h plasma glucose values increased with an increase in BMI, so that height was inversely associated with 2-h plasma glucose in the three lowest BMI groups, but not in the highest BMI group (P=0.33). CONCLUSIONS: Taller people had lower 2-h plasma glucose concentrations than shorter people, up to a BMI of 35 kg/m2 . Adjustment for height and BMI is needed for accurate interpretation of oral glucose tolerance tests.


Assuntos
Adiposidade , Doenças Cardiovasculares/etiologia , Intolerância à Glucose/fisiopatologia , Sobrepeso/fisiopatologia , Saúde da População Rural , Adiposidade/etnologia , Idoso , Glicemia/análise , Estatura/etnologia , Índice de Massa Corporal , Doenças Cardiovasculares/epidemiologia , Doenças Cardiovasculares/etnologia , Estudos de Coortes , Fatores de Confusão Epidemiológicos , Estudos Transversais , Feminino , Finlândia/epidemiologia , Intolerância à Glucose/sangue , Intolerância à Glucose/etnologia , Teste de Tolerância a Glucose , Inquéritos Epidemiológicos , Humanos , Masculino , Programas de Rastreamento , Pessoa de Meia-Idade , Sobrepeso/sangue , Sobrepeso/etnologia , Fatores de Risco , Saúde da População Rural/etnologia , Fatores Sexuais
4.
Acta Paediatr ; 106(10): 1583-1588, 2017 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-28639282

RESUMO

AIMS: This study explored whether growth was poorer among very low birthweight (VLBW) infants with bronchopulmonary dysplasia (BPD) and assessed adipokine levels as predictors of early growth. METHODS: We studied 53 VLBW infants born in Tampere University Hospital up to 12 months of corrected age (CA). The median gestational age of the 21 infants with BPD and 32 infants without BPD was 29 weeks, and the median birthweights were 930 (635-1470) and 1185 (650-1470) grams. Growth parameters, macronutrients intake and plasma levels of adipokines were measured. RESULTS: Bronchopulmonary dysplasia infants were lighter than controls until 36 weeks of CA, with catch-up growth achieved by three months of CA. Adipsin levels were lower in BPD infants at 28 days of postnatal age. High leptin levels seemed protective for low weight for height at nine months of CA. The duration of ventilator therapy predicted low weight for height, length for age and body mass index and BPD predicted low length for age at 12 months of CA. CONCLUSIONS: Catch-up growth in VLBW infants with BPD was achieved by three months of CA, but adipokines played a limited role in predicting growth. Shortening ventilator therapy could help growth in VLBW infants.


Assuntos
Adipocinas/sangue , Displasia Broncopulmonar/fisiopatologia , Desenvolvimento Infantil , Displasia Broncopulmonar/sangue , Estudos de Casos e Controles , Ingestão de Energia , Feminino , Seguimentos , Humanos , Recém-Nascido , Recém-Nascido de muito Baixo Peso , Modelos Logísticos , Masculino
5.
J Intellect Disabil Res ; 61(11): 1034-1054, 2017 11.
Artigo em Inglês | MEDLINE | ID: mdl-28699168

RESUMO

BACKGROUND: Prematurity has been shown to be associated with an increased risk of intellectual disability (ID). METHOD: The aim was to establish whether the prevalence of ID, defined as significant limitations in both intellectual (intelligence quotient below 70) and adaptive functioning among moderately preterm (MP; 32+0 -33+6  weeks) and late preterm (LP; 34+0 -36+6  weeks) infants, is increased compared with that in term infants (≥37+0  weeks). Antenatal and neonatal risk factors for ID among gestational age groups were sought. The national register study included all live-born infants in Finland in 1991-2008, excluding those who died before one year age, or had any major congenital anomaly or missing data. A total of 1 018 256 infants (98.0%) were analysed: very preterm (VP; <32+0  weeks, n = 6329), MP (n = 6796), LP (n = 39 928) and term (n = 965 203). RESULTS: By the age of seven years, the prevalence of ID was 2.48% in the VP group, 0.81% in the MP group, 0.55% in the LP group and 0.35% in the term group. Intracranial haemorrhage increased the ID risk in all groups. Male sex and born small for gestational age predicted an increased risk in all but the MP group. CONCLUSIONS: The prevalence of ID decreased with increasing gestational age. Prevention of intracranial haemorrhages may have a beneficial effect on the neurodevelopmental outcomes of neonates.


Assuntos
Doenças do Prematuro/epidemiologia , Recém-Nascido Prematuro , Deficiência Intelectual/epidemiologia , Sistema de Registros/estatística & dados numéricos , Criança , Pré-Escolar , Comorbidade , Finlândia/epidemiologia , Idade Gestacional , Humanos , Lactente , Lactente Extremamente Prematuro , Recém-Nascido
6.
Int J Clin Pract ; 69(2): 156-61, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25521214

RESUMO

BACKGROUND: In 2002, a new definition and classification of chronic kidney disease was published, and glomerular filtration rate < 60 ml/min/1.73 m(2) for 3 months or more was adapted to define chronic kidney disease irrespective of other signs of kidney damage. AIMS: To discuss different ways to assess kidney function in outpatient clinics and especially in primary care. METHODS: The PubMed database was searched for relevant articles. RESULTS: The estimated glomerular filtration rate equations which take into account plasma creatinine, age, sex, race and body size have been developed to identify patients with chronic kidney disease formerly overlooked if the renal function had been assessed by plasma creatinine alone. Cystatin C-based equations have also been developed to enhance accuracy for individuals with whom creatinine-based estimates for kidney function are acknowledged to be less accurate. DISCUSSION: The characteristics of the patients to whom the diagnostic test is applied can influence the sensitivity of the test. Thus, there is nowadays controversy over the best method to assess kidney function in general population. CONCLUSION: In the overwhelming majority of patients currently treated in primary care, the CKD-EPI creatinine equation is suitable for estimating renal function. The CKD-EPIcr-cys equation would provide further reliability in individuals with a CKD-EPI creatinine eGFR of 45-59 ml/min/1.73 m(2) , but the cost of serum cystatin C analysis limits its use in everyday general practice.


Assuntos
Instituições de Assistência Ambulatorial , Creatinina/análise , Testes de Função Renal/estatística & dados numéricos , Reprodutibilidade dos Testes , Creatinina/sangue , Cistatina C/análise , Cistatina C/sangue , Taxa de Filtração Glomerular , Humanos , Testes de Função Renal/métodos
7.
Clin Pediatr (Phila) ; 62(11): 1361-1368, 2023 11.
Artigo em Inglês | MEDLINE | ID: mdl-36942607

RESUMO

Catheter complications can be life-threatening in very low-birth-weight (VLBW) infants. We retrospectively evaluated non-elective removals of the first thin (1-2F) umbilical vein catheters (tUVCs (n = 92)) and peripherally inserted central venous catheters (PICCs (n = 103)) among 195 VLBW infants. Catheters were removed non-electively in 78 infants (40%), typically due to suspected infection (n = 42) or catheter dislocation (n = 30). Infants with complications had lower birth weights and gestational ages than others. The frequencies and causes of catheter removal were similar in the tUVC and PICC groups. Thirty-one infants had true catheter infections. The number of infections/1000 catheter days was higher in the tUVC group than in the PICC group. In a multivariable analysis, gestational age was associated with catheter infection, but catheter type was not. The odds of catheter complications decreased with increasing gestational age, but no clear association with thin catheter type was found.


Assuntos
Infecções Relacionadas a Cateter , Cateterismo Venoso Central , Cateteres Venosos Centrais , Recém-Nascido , Humanos , Cateteres Venosos Centrais/efeitos adversos , Estudos Retrospectivos , Recém-Nascido de muito Baixo Peso , Peso ao Nascer , Cateterismo Venoso Central/efeitos adversos , Infecções Relacionadas a Cateter/epidemiologia
8.
J Biopharm Stat ; 22(6): 1258-71, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-23075021

RESUMO

Clinical trials in oncology often allow patients randomized to placebo to cross over to the active treatment arm after disease progression, leading to underestimation of the treatment effect on overall survival as per the intention-to-treat analysis. We illustrate the statistical aspects and practical use of the rank-preserving structural failure time (RPSFT) model with the Fleming-Harrington family of tests to estimate the crossover-corrected treatment effect, and to assess its sensitivity to various weighting schemes in the RECORD-1 trial. The results suggest that the benefit demonstrated in progression-free survival is likely to translate into a robust overall survival benefit.


Assuntos
Antineoplásicos/uso terapêutico , Carcinoma de Células Renais/mortalidade , Estudos Cross-Over , Interpretação Estatística de Dados , Neoplasias Renais/mortalidade , Sirolimo/análogos & derivados , Algoritmos , Antineoplásicos/administração & dosagem , Antineoplásicos/efeitos adversos , Carcinoma de Células Renais/tratamento farmacológico , Carcinoma de Células Renais/patologia , Método Duplo-Cego , Everolimo , Humanos , Estimativa de Kaplan-Meier , Neoplasias Renais/tratamento farmacológico , Neoplasias Renais/patologia , Modelos Estatísticos , Modelos Estruturais , Metástase Neoplásica , Sirolimo/administração & dosagem , Sirolimo/efeitos adversos , Sirolimo/uso terapêutico , Falha de Tratamento
9.
Int J Angiol ; 20(1): 43-8, 2011 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22532770

RESUMO

High-sensitivity C-reactive protein (hsCRP) has been previously linked to different forms of vascular disease. However, some studies have not found any relationship between hsCRP and atherosclerosis. Also, studies investigating correlation between hsCRP and ankle brachial index (ABI) are scarce. We studied hsCRP in a cardiovascular risk population with a special interest in correlation between hsCRP and ABI. All men and women aged 45 to 70 years from a rural town Harjavalta, Finland were invited to participate in a population survey. Diabetics and people with known vascular disease were excluded. Seventy-three percent (n = 2085) of the invited persons participated and 70% of the respondents (n = 1496) had at least one risk factor to cardiovascular diseases. These subjects were invited to further examinations. From them we measured ABI, hsCRP, leukocyte count, glucose tolerance, systemic coronary risk evaluation (SCORE), body mass index (BMI), and waist circumference. Mean hsCRP was 1.9 mg/L. Smokers had higher hsCRP (mean 2.2 mg/L) than nonsmokers (mean 1.8 mL/L). hsCRP in women was higher than in men (mean 2.0 mg/L versus 1.8 mg/L). Mean ABI was 1.10, and the prevalence of peripheral arterial disease was 3.1%. ABI correlated weakly with hsCRP (r = -0.077, p = 0.014), leukocyte count (r = -0.107, p = 0.001), and SCORE (r = -0.116, p = 0.001). It did not have correlation between age, weight, BMI, or waist circumference. hsCRP correlated with BMI (r = 0.208, p < 0.0001) and waist circumference (r = 0.325, p < 0.0001). When we excluded subjects with hsCRP >10 mg/L, ABI no longer correlated with hsCRP. In a cardiovascular risk population, hsCRP has only a weak correlation with ABI, and this correlation disappeared when we excluded subject with hsCRP >10 mg/L. Instead, hsCRP was correlated to the measures of obesity (waist circumference and BMI), indicating its role as a marker of adipose tissue-driven inflammation. hsCRP does not seem to be a suitable screening method for peripheral arterial disease.

12.
J Hum Hypertens ; 23(2): 97-104, 2009 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-18784736

RESUMO

The prevalence of renal insufficiency in hypertensive participants without comorbidities affecting renal function is unknown. The objective of this study was to assess the prevalence and predictors of renal insufficiency in general hypertensive population. We examined 994 hypertensive participants aged 45-70 years without previously diagnosed diabetes, cardiovascular disease or chronic kidney disease. Renal insufficiency was defined as estimated glomerular filtration rate <60 ml min(-1) per 1.73 m(2) by the Modification of Diet in Renal Disease formula. The metabolic syndrome was defined according to the International Diabetes Federation and the US National Cholesterol Education Program Third Adult Treatment Panel criteria. Glucose homoeostasis was assessed with an oral glucose tolerance test. The prevalence of renal insufficiency was 6.7% (95% confidence interval (CI) 5.3-8.5). In a multivariate model, the presence of renal insufficiency was predicted by female gender (odds ratio (OR) 3.57 (95% CI 1.90-6.72)), older age (OR 1.13 (95% CI 1.07-1.18)), use of diuretics (OR 2.13 (95% CI 1.19-3.82)) and metabolic syndrome (OR 2.79 (95% CI 1.34-5.79)). Newly diagnosed diabetes or prediabetes did not predict renal insufficiency. The prevalence of renal insufficiency was found to be lower than previously reported in hypertensive general population. Metabolic syndrome, but not newly diagnosed diabetes or prediabetes per se, was strongly associated with renal insufficiency especially in women. Renal insufficiency was also associated with the use of diuretics, but the clinical relevance of this finding needs to be clarified.


Assuntos
Hipertensão/complicações , Síndrome Metabólica/complicações , Insuficiência Renal/epidemiologia , Idoso , Estudos de Coortes , Feminino , Finlândia , Taxa de Filtração Glomerular , Inquéritos Epidemiológicos , Humanos , Masculino , Pessoa de Meia-Idade , Prevalência , Fatores de Risco , Fatores Sexuais
15.
Nanoscale Res Lett ; 12(1): 117, 2017 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-28228002

RESUMO

Freedom of design that was introduced as organic photovoltaic (OPV) modules were fabricated by printing. As proof-of-concept, we show OPV leaf fabrication in A5 size using gravure and rotary screen printing processes for the main active layers of the OPV structure. These printing methods allow direct printing of any kind of arbitrary, two-dimensional shapes including patterning of the electric contacts thus post-patterning stages are not needed. Fabrication of custom-shaped OPV modules requires detailed information about the technical boundaries set by the manufacturing process and materials which in turn influence the layout design and R2R upscaling. In this paper, we show custom-shaped OPV modules, patterned directly in a shape of a tree leaf with an overall size of 110 cm2 and an active area of 50 cm2 providing a power conversion efficiency of 2.0% and maximum power of 98 mW.

16.
Adv Parasitol ; 93: 519-67, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27238012

RESUMO

Parasitic roundworms (nematodes) cause substantial mortality and morbidity in animals globally. The barber's pole worm, Haemonchus contortus, is one of the most economically significant parasitic nematodes of small ruminants worldwide. Although this and related nematodes can be controlled relatively well using anthelmintics, resistance against most drugs in common use has become a major problem. Until recently, almost nothing was known about the molecular biology of H. contortus on a global scale. This chapter gives a brief background on H. contortus and haemonchosis, immune responses, vaccine research, chemotherapeutics and current problems associated with drug resistance. It also describes progress in transcriptomics before the availability of H. contortus genomes and the challenges associated with such work. It then reviews major progress on the two draft genomes and developmental transcriptomes of H. contortus, and summarizes their implications for the molecular biology of this worm in both the free-living and the parasitic stages of its life cycle. The chapter concludes by considering how genomics and transcriptomics can accelerate research on Haemonchus and related parasites, and can enable the development of new interventions against haemonchosis.


Assuntos
Genômica , Hemoncose/veterinária , Haemonchus/genética , Transcriptoma , Animais , Anti-Helmínticos/farmacologia , Caenorhabditis elegans/genética , Bases de Dados Genéticas , Resistência a Medicamentos , Hemoncose/tratamento farmacológico , Hemoncose/parasitologia , Haemonchus/efeitos dos fármacos , Estágios do Ciclo de Vida , Ruminantes/parasitologia
17.
Early Hum Dev ; 81(6): 497-505, 2005 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-15935927

RESUMO

BACKGROUND: With the introduction of new therapies in peri- and neonatology, the clinical picture of bronchopulmonary dysplasia (BPD) seems to alter. The consequences of this "new BPD" are of interest. AIM: To evaluate cardiovascular findings during the surfactant era in very low birthweight (VLBW, birth weight < 1500 g) schoolchildren with and without BPD. METHODS: At 7-8 years of age, 34 VLBW children with BPD born in one hospital underwent blood pressure (BP) measurement, electrocardiography (ECG), two-dimensional Doppler and M-mode echocardiography, flow-volume spirometry and whole-body plethysmography. The age- and sex-matched control groups comprised 34 VLBW children without BPD (no-BPD group) and 34 term children (term group). RESULTS: The mean(SD) diastolic BP was significantly higher in the no-BPD than in the BPD group (65(9) vs. 59(8) mm Hg, p < 0.05). No clinically significant tricuspid regurgitations were found. The groups did not differ with respect to right ventricular systolic time intervals corrected for heart rate. The results of all M-mode measurements were within normal range. Compared to term controls, the BPD cases had lower mean(SD) forced expiratory flow in 1 s (90(14)% vs. 99(11)% of ref., p < 0.05) and more often high ratio of residual volume to total lung capacity (15(52%) vs. 4(13%), p < 0.01). No clinically significant correlations were found between current lung function and echocardiographic findings. CONCLUSION: In the surfactant era, school-aged VLBW survivors with and without BPD do not seem to evince indirect signs of elevated pulmonary pressure. The increased pulmonary vascular resistance associated with BPD appears to resolve with time more rapidly than abnormalities in respiratory function.


Assuntos
Displasia Broncopulmonar/fisiopatologia , Recém-Nascido de muito Baixo Peso/fisiologia , Pulmão/fisiopatologia , Pressão Sanguínea/fisiologia , Displasia Broncopulmonar/diagnóstico por imagem , Criança , Eletrocardiografia , Feminino , Frequência Cardíaca/fisiologia , Hemodinâmica , Humanos , Recém-Nascido , Masculino , Pletismografia , Fatores de Risco , Ultrassonografia
18.
J Hum Hypertens ; 29(1): 46-9, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25078489

RESUMO

The aim of this study was to investigate whether resistant hypertension differs from uncontrolled and controlled hypertension in terms of target organ damage. Hypertensive subjects with antihypertensive medication (n=385) were identified in a population survey conducted in southwestern Finland. None of the study subjects had previously diagnosed cardiovascular or renal disease or diabetes. Ankle-brachial index, estimated glomerular filtration rate, electrocardiogram-determined left ventricular hypertrophy and cardiometabolic risk factors were assessed. The prevalence of peripheral arterial disease among subjects with resistant, uncontrolled and controlled hypertension was 6/37 (16%), 22/275 (8%) and 0/73 (0%), respectively (P=0.006). There were no differences in the prevalence of renal insufficiency, left ventricular hypertrophy or metabolic parameters between the groups. Resistant hypertension affects vasculature more than uncontrolled hypertension, and thus it can be regarded as a marker of more severe disease.


Assuntos
Anti-Hipertensivos/uso terapêutico , Pressão Sanguínea/efeitos dos fármacos , Resistência a Medicamentos , Hipertensão/tratamento farmacológico , Hipertensão/epidemiologia , Doença Arterial Periférica/epidemiologia , Idoso , Comorbidade , Quimioterapia Combinada , Feminino , Finlândia/epidemiologia , Inquéritos Epidemiológicos , Humanos , Hipertensão/diagnóstico , Hipertensão/fisiopatologia , Hipertrofia Ventricular Esquerda/epidemiologia , Masculino , Pessoa de Meia-Idade , Doença Arterial Periférica/diagnóstico , Prevalência , Insuficiência Renal/epidemiologia , Fatores de Risco
19.
Stroke ; 31(10): 2301-6, 2000 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-11022054

RESUMO

BACKGROUND AND PURPOSE: Antioxidants may protect against atherosclerosis and thus prevent cerebrovascular disease. We studied the association between dietary antioxidants and subtypes of stroke. METHODS: The study cohort consisted of 26 593 male smokers, aged 50 to 69 years, without a history of stroke. They were participants of the Alpha-Tocopherol, Beta-Carotene Cancer Prevention (ATBC) Study in Finland. The men completed a validated dietary questionnaire at baseline. Incident cases were identified through national registers. RESULTS: During a 6.1-year follow-up, 736 cerebral infarctions, 83 subarachnoid hemorrhages, and 95 intracerebral hemorrhages occurred. Neither dietary flavonols and flavones nor vitamin E were associated with risk for stroke. The dietary intake of beta-carotene was inversely associated with the risk for cerebral infarction (relative risk [RR] of highest versus lowest quartile 0.74, 95% CI 0.60 to 0. 91), lutein plus zeaxanthin with risk for subarachnoid hemorrhage (RR 0.47, 95% CI 0.24 to 0.93), and lycopene with risks of cerebral infarction (RR 0.74, 95% CI 0.59 to 0.92) and intracerebral hemorrhage (RR 0.45, 95% CI 0.24 to 0.86). Vitamin C intake was inversely associated with the risk for intracerebral hemorrhage (RR 0.39, 95% CI 0.21 to 0.74). After simultaneous modeling of the antioxidants, a significant association remained only between beta-carotene intake and risk for cerebral infarction (RR 0.77, 95% CI 0.61 to 0.99). CONCLUSIONS: Dietary intake of beta-carotene was inversely associated with the risk for cerebral infarction. No association was detected between other dietary antioxidants and risk for stroke.


Assuntos
Carotenoides/administração & dosagem , Dieta/estatística & dados numéricos , Fumar/epidemiologia , Acidente Vascular Cerebral/epidemiologia , Vitaminas/administração & dosagem , Idoso , Ácido Ascórbico/administração & dosagem , Hemorragia Cerebral/epidemiologia , Infarto Cerebral/epidemiologia , Estudos de Coortes , Comorbidade , Finlândia/epidemiologia , Flavonoides , Seguimentos , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Risco , Medição de Risco , Hemorragia Subaracnóidea/epidemiologia , Vitamina E/administração & dosagem , beta Caroteno/administração & dosagem
20.
Clin Pharmacol Ther ; 58(2): 221-7, 1995 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-7648772

RESUMO

BACKGROUND: Entacapone is a potent, selective catechol-O-methyltransferase (COMT) inhibitor. Entacapone could potentiate the hemodynamic effects of exogenously administered catecholamines, which are substrates of the COMT enzyme. DESIGN AND METHODS: Originally, the study was to follow a placebo-controlled, randomized crossover design. Because of two cases of ventricular arrhythmia, a decision was made to terminate the study before its completion. Six subjects went through the isoproterenol and epinephrine infusions while taking placebo and five other subjects while taking entacapone. The actual design was thus one with two parallel groups with random allocation and double-blind drug administration. The subjects were given either a single dose of 400 mg entacapone or placebo 30 minutes before the start of isoproterenol or epinephrine infusions. Four dosages of epinephrine (1.5, 3, 6, or 12 micrograms/min) and isoproterenol (0.5, 1, 1.5, or 2 micrograms/min) were infused (5 minutes for each level). Heart rate and blood pressure were measured and ECG was monitored. The concentrations of isoproterenol and epinephrine in plasma were determined by HPLC. RESULTS: The maximal increase in heart rate during isoproterenol infusion after entacapone administration (40 +/- 11 beats/min, mean +/- SD) was statistically greater (p = 0.0496) than after placebo administration (27 +/- 7 beats/min). The increase in heart rate during epinephrine infusion was 25 +/- 13 beats/min after entacapone administration and 14 +/- 9 beats/min after placebo administration (p = 0.127). There were no statistically significant differences between entacapone and placebo in blood pressure or in plasma concentrations of isoproterenol and epinephrine. CONCLUSION: We conclude that entacapone may potentiate the chronotropic and arrhythmogenic effects of exogenously administered isoproterenol and epinephrine.


Assuntos
Catecóis/farmacologia , Epinefrina/farmacologia , Hemodinâmica/efeitos dos fármacos , Isoproterenol/farmacologia , Adulto , Pressão Sanguínea/efeitos dos fármacos , Método Duplo-Cego , Eletrocardiografia/efeitos dos fármacos , Epinefrina/administração & dosagem , Epinefrina/farmacocinética , Frequência Cardíaca/efeitos dos fármacos , Humanos , Infusões Intravenosas , Isoproterenol/administração & dosagem , Isoproterenol/farmacocinética , Masculino , Nitrilas , Valores de Referência
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