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PURPOSE: To analyze the associations between cholecalciferol or calcifediol supplementation, serum 25-hydroxyvitamin D (25OHD) levels and COVID-19 outcomes in a large population. METHODS: All individuals ≥ 18 years old living in Barcelona-Central Catalonia (n = 4.6 million) supplemented with cholecalciferol or calcifediol from April 2019 to February 2020 were compared with propensity score-matched untreated controls. Outcome variables were SARS-CoV2 infection, severe COVID-19 and COVID-19 mortality occuring during the first wave of the pandemic. Demographical data, comorbidities, serum 25OHD levels and concomitant pharmacological treatments were collected as covariates. Associations between cholecalciferol or calcifediol use and outcome variables were analyzed using multivariate Cox proportional regression. RESULTS: Cholecalciferol supplementation (n = 108,343) was associated with slight protection from SARS-CoV2 infection (n = 4352 [4.0%] vs 9142/216,686 [4.2%] in controls; HR 0.95 [CI 95% 0.91-0.98], p = 0.004). Patients on cholecalciferol treatment achieving 25OHD levels ≥ 30 ng/ml had lower risk of SARS-CoV2 infection, lower risk of severe COVID-19 and lower COVID-19 mortality than unsupplemented 25OHD-deficient patients (56/9474 [0.6%] vs 96/7616 [1.3%]; HR 0.66 [CI 95% 0.46-0.93], p = 0.018). Calcifediol use (n = 134,703) was not associated with reduced risk of SARS-CoV2 infection or mortality in the whole cohort. However, patients on calcifediol treatment achieving serum 25OHD levels ≥ 30 ng/ml also had lower risk of SARS-CoV2 infection, lower risk of severe COVID-19, and lower COVID-19 mortality compared to 25OHD-deficient patients not receiving vitamin D supplements (88/16276 [0.5%] vs 96/7616 [1.3%]; HR 0.56 [CI 95% 0.42-0.76], p < 0.001). CONCLUSIONS: In this large, population-based study, we observed that patients supplemented with cholecalciferol or calcifediol achieving serum 25OHD levels ≥ 30 ng/ml were associated with better COVID-19 outcomes.
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Tratamiento Farmacológico de COVID-19 , Calcifediol/administración & dosificación , Colecalciferol/administración & dosificación , SARS-CoV-2 , Anciano , Anciano de 80 o más Años , COVID-19/epidemiología , COVID-19/fisiopatología , Calcifediol/farmacocinética , Estudios de Cohortes , Comorbilidad , Suplementos Dietéticos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Insuficiencia Renal Crónica/epidemiología , Insuficiencia Renal Crónica/metabolismo , Estudios Retrospectivos , Índice de Severidad de la Enfermedad , España , Vitamina D/análogos & derivados , Vitamina D/sangre , Deficiencia de Vitamina D/epidemiologíaRESUMEN
OBJECTIVES: To compare the prevalence of carotid atherosclerosis in virologically suppressed HIV patients with that of a community sample, and to evaluate the capacity of various cardiovascular risk (CVR) equations for predicting carotid atherosclerosis. METHODS: This was a cross-sectional study with two randomly selected groups: HIV patients from an HIV unit and a control group drawn from the community. Participants were matched by age (30-80 years) and sex without history of cardiovascular disease. Carotid plaque, common carotid intima-media thickness (cc-IMT) and subclinical atherosclerosis (carotid plaque and/or cc-IMT > 75th percentile) were assessed by carotid ultrasound. The Systematic Coronary Risk Evaluation (SCORE), Framingham, REGICOR, reduced Data Collection on Adverse Effects of Anti-HIV Drugs (D:A:D), and COMVIH equations were applied, and their abilities to predict carotid plaque were compared using the area under the curve (AUC). RESULTS: Each group included 379 subjects (77.8% men, age 49.7 years). Duration of antiretroviral therapy was 15.5 years. There were no differences between the groups for carotid plaque (HIV, 33.2%; control, 31.3%), mean cc-IMT (HIV, 0.63 mm; control, 0.61 mm) or subclinical atherosclerosis (HIV, 42.9%; control, 47.9%). Thymidine analogues were independently associated with subclinical atherosclerosis in HIV-infected patients. CVR equations revealed AUCs between 0.715 and 0.807 for prediction of carotid plaque; prediction was better in the control group and did not improve when HIV-adapted scales were used. CONCLUSIONS: The features of carotid atherosclerosis did not differ between the HIV-infected and the control group, although CVR equations were more predictive for carotid plaque in controls than in HIV-infected patients. HIV-specific equations did not improve prediction.
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Enfermedades Cardiovasculares , Enfermedades de las Arterias Carótidas , Infecciones por VIH , Adulto , Anciano , Anciano de 80 o más Años , Enfermedades de las Arterias Carótidas/diagnóstico por imagen , Enfermedades de las Arterias Carótidas/epidemiología , Grosor Intima-Media Carotídeo , Estudios Transversales , Femenino , Infecciones por VIH/complicaciones , Infecciones por VIH/tratamiento farmacológico , Factores de Riesgo de Enfermedad Cardiaca , Humanos , Masculino , Persona de Mediana Edad , Factores de RiesgoRESUMEN
The time-reversal and spatial parity violating interaction of the nuclear magnetic quadrupole moment (MQM) of the 175Lu and 176Lu nuclei with electrons in the molecular cation LuOH+ is studied. The resulting effect is expressed in terms of fundamental parameters, such as quantum chromodynamics angle θ¯, quark electric dipole moment (EDM), and chromo-EDM. For this, we have estimated the magnetic quadrupole moments of 175Lu and 176Lu nuclei and calculated the molecular constant that characterizes the interaction of the MQM with electrons in the considered molecules. Additionally, we predict the hyperfine structure constants for the ground electronic state of LuOH+. In the molecular calculations, both the correlation and relativistic effects including the Gaunt interaction have been considered. According to the calculated expressions in terms of the fundamental constants, we conclude that LuOH+ can be a promising system to measure the nuclear MQM.
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BACKGROUND AND PURPOSE: Epilepsy has been associated with cardiovascular comorbidity. Risk prediction equations are the standard tools in primary prevention of cardiovascular disease. Our aim was to compare the prevalence of cardiovascular risk factors (CVRFs), cardiovascular risk and statin use in people with epilepsy (PWE) and the general population. METHODS: The CVRFs and cardiovascular risk score were compared between 815 PWE from an outpatient register and 5336 participants from a general population cohort. RESULTS: People with epilepsy had less hypertension (43.3% vs. 50.4%), less diabetes (15.8% vs. 19.2%), more dyslipidemia (40.2% vs. 34.6%) and lower cardiovascular risk than the general population (P < 0.01). No etiology was associated with a worse CVRF profile or higher cardiovascular risk. Patients taking enzyme-inducing antiepileptic drugs (EIAEDs) had more dyslipidemia than the general population (41.6% vs. 34.6%) but similar cardiovascular risk. Independently of risk or CVRFs, PWE had 60% more probability of receiving statins than the general population. CONCLUSIONS: People with epilepsy had more dyslipidemia, related to EIAEDs, and lower cardiovascular risk but still took more statins than the general population. Physicians should use clinical judgement to decide on further treatment of CVRFs in PWE who are below the recommended risk threshold for treatment and should consider lipid abnormalities a potential side-effect of EIAEDs. Other therapy options may need to be evaluated before starting lipid-lowering treatment.
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Enfermedades Cardiovasculares/epidemiología , Epilepsia/tratamiento farmacológico , Epilepsia/epidemiología , Inhibidores de Hidroximetilglutaril-CoA Reductasas/uso terapéutico , Anciano , Anticonvulsivantes/efectos adversos , Anticonvulsivantes/uso terapéutico , Estudios de Cohortes , Estudios Transversales , Diabetes Mellitus/epidemiología , Utilización de Medicamentos , Dislipidemias/inducido químicamente , Dislipidemias/complicaciones , Dislipidemias/epidemiología , Epilepsia/complicaciones , Femenino , Humanos , Hipertensión/epidemiología , Masculino , Persona de Mediana Edad , Prevalencia , Estudios Retrospectivos , Medición de Riesgo , Factores de RiesgoRESUMEN
INTRODUCTION: The clinical significance of a high ankle brachial index (ABI) and its relationship to cardiovascular disease (CVD) and mortality is controversial. The aim of this study was to estimate the association between abnormally high ABI ≥ 1.4 and coronary heart disease (CHD), cerebrovascular disease, and all-cause mortality in a Mediterranean population without CVD. METHODS: A prospective population based cohort study of 6352 subjects was followed up for a median 6.2 years. Subjects under 35 years, with a history of CVD or an ABI < 0.9 were excluded. All CHD events (angina, myocardial infarction, coronary revascularisation), cerebrovascular events (stroke, transient ischaemic attack), and all-cause mortality were recorded. RESULTS: A total of 5679 subjects fulfilled the inclusion criteria, of which 5517 (97.1%) had a normal ABI whereas 162 (2.9%) had an ABI ≥ 1.4. The profile of individuals with abnormally high ABI revealed as independent related factors age (OR = 1.0; p = .045), female sex (OR = 0.4; p < .01), diabetes (OR = 1.9; p = .02), and lower diastolic blood pressure (OR = 0.9; p < .001). During follow-up 309 (5.4%) participants presented with a CV event and 286 (5.0%) died. An ABI ≥ 1.4 was associated with a higher incidence of CV events in the univariate (HR = 1.7) but not in the multivariate survival Cox regression analysis. An ABI ≥ 1.4 was independently associated with all-cause mortality (HR = 2.0; IC 95% 1.32-2.92) and cardiovascular mortality (HR = 3.1; IC 95% 1.52-6.48). CONCLUSIONS: In subjects without CVD, those with abnormally high ABI do not have a greater CV event rate than those with a normal ABI. However, there seems to be a trend towards higher mortality risk, supporting the guidelines that consider this subgroup to be a high risk population.
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Índice Tobillo Braquial , Trastornos Cerebrovasculares/mortalidad , Enfermedad Coronaria/mortalidad , Enfermedad Arterial Periférica/mortalidad , Adulto , Anciano , Causas de Muerte , Trastornos Cerebrovasculares/diagnóstico , Trastornos Cerebrovasculares/fisiopatología , Comorbilidad , Enfermedad Coronaria/diagnóstico , Enfermedad Coronaria/fisiopatología , Femenino , Estudios de Seguimiento , Humanos , Modelos Logísticos , Masculino , Persona de Mediana Edad , Análisis Multivariante , Oportunidad Relativa , Enfermedad Arterial Periférica/diagnóstico , Enfermedad Arterial Periférica/fisiopatología , Valor Predictivo de las Pruebas , Pronóstico , Modelos de Riesgos Proporcionales , Estudios Prospectivos , Medición de Riesgo , Factores de Riesgo , España/epidemiología , Factores de TiempoRESUMEN
Progressive motility is usually estimated by visual inspection using a light contrast microscope at X 100 immediately after semen collection or immediately after thawing frozen semen. Standard operating procedures have never been established for this test. The objective of this experiment was to examine time-dependent changes of motility after thawing cryopreserved canine semen. Semen of 35 dogs was collected, and volume, concentration, progressive motility, morphology, membrane integrity and HOS test were evaluated. For cryopreservation, CaniPRO® Freeze A&B was used. Semen was thawed and diluted using CaniPRO® culture medium. After thawing, semen was evaluated as before. In addition, every sample was evaluated for progressively motile sperm cells 0, 5, 20 and 60 min after thawing. Progressive semen motility was significantly highest five minutes after thawing.
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Criopreservación/veterinaria , Perros , Preservación de Semen/veterinaria , Motilidad Espermática/fisiología , Espermatozoides/fisiología , Animales , Masculino , Preservación de Semen/métodos , Factores de TiempoRESUMEN
OBJECTIVES: The reported incidence of lower extremity peripheral arterial disease (PAD) in Western countries ranges between 530 and 2,380 per 100,000 person years. The aims of this study were to determine the incidence of PAD and identify associated risk factors in a Mediterranean population. METHODS: Cardiovascular risk factors, the Edinburgh questionnaire, and ankle brachial index (ABI) were collected from 5,434 individuals, aged 35-79 years, from a population based cohort study at baseline and after a mean of 5.7 years follow up. PAD was defined as ABI <0.9 or a clinical diagnosis during follow up. Logistic and regression tree analyses were used to identify factors associated with PAD. RESULTS: In total, 118 new cases of confirmed PAD were identified. The cumulative population incidence rate of PAD was 377 cases per 100,000 person years. For symptomatic PAD, this figure was 102 per 100,000 person years. The most important risk factors for PAD were current (OR 2.30; 95% CI 1.27-4.16) or former smoking (OR 2.02; 95% CI 1.19-3.43), diabetes (OR 1.78; 95% CI 1.17-2.72), age (OR 1.04; 95% CI 1.02-1.07), history of cardiovascular disease (OR 2.06; 95% CI 1.22-3.51), triglycerides level (OR 1.56; 95% CI 1.07-2.29), and systolic blood pressure (OR 1.02; 95% CI 1.01-1.03). In the population ≤65 years the most relevant risk factor was diabetes, whereas in those >65 years smoking was the leading factor. Long-term uncontrolled diabetes was the strongest risk factor for PAD (OR 10.14; 95% CI 3.57-28.79). CONCLUSION: The incidence of lower extremity PAD is lower in the Mediterranean area than has been reported for other areas. The data suggest that patients with long-term uncontrolled diabetes and former and current smokers older than 65 years should be considered for PAD screening.
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Índice Tobillo Braquial , Enfermedad Arterial Periférica/diagnóstico , Estudios de Cohortes , Humanos , Incidencia , Prevalencia , Factores de RiesgoRESUMEN
Metabolic syndrome (MetS) and type 2 diabetes mellitus (T2DM) are associated with macro- and microcirculatory complications that reduce physical performance. Wearing compression garments to potentially optimize hemodynamics has been discussed. This study investigates the effects of wearing compression stockings on physical performance-related variables in type 2 diabetic men with metabolic syndrome (n=9, 57±12 years, BMI: 36±4 kg/m(2)). Participants served as their own controls in a randomized 3*3 crossover study wearing below-knee stockings with either compression (24 or 30 mmHg ankle pressure) or no compression. Venous pooling and lower limb oxygenation profiles were determined with near-infrared spectroscopy and arterial oxygen saturation was determined using a pulse oxymeter. Measurements were performed in the supine lying position, during standing, following 10 tiptoe exercises and after submaximal intensity cycling. In addition, lactate and erythrocyte deformability were analyzed in capillary blood pre- and post-exercise. Erythrocyte deformability was analyzed using a laser-assisted optical rotational red cell analyzer. No significant differences in any variables when wearing different compression or regular stockings were evident at any point of measurement. This study did not reveal any beneficial effects of wearing compression stockings at rest and during acute bouts of moderately intense exercise in this particular patient group.
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Diabetes Mellitus Tipo 2/terapia , Prueba de Esfuerzo , Hemodinámica , Síndrome Metabólico/terapia , Medias de Compresión , Anciano , Estudios Cruzados , Deformación Eritrocítica , Humanos , Ácido Láctico/sangre , Pierna , Masculino , Persona de Mediana Edad , Oximetría , Consumo de Oxígeno , Descanso , Espectroscopía Infrarroja Corta , Insuficiencia Venosa/terapiaRESUMEN
OBJECTIVES: To compare a cohort of patients with systemic sclerosis sine scleroderma (ssSSc) vs. patients with limited cutaneous systemic sclerosis (lcSSc). METHODS: Forty-five patients with ssSSc and 186 patients with lcSSc were investigated. Demographic, clinical and immunologic features and survival were compared. RESULTS: There were no significant differences between ssSSc and lcSSc in gender, age at onset and interval between onset and diagnosis. ssSSc patients fulfilled the ACR criteria for SSc less than lcSSc patients (13%/77%, p<0.0001). There were no significant differences in articular involvement, myopathy, tendon friction rubs and gastrointestinal, pulmonary, cardiac and renal involvements. There was a trend to higher prevalence of pulmonary arterial hypertension (PAH) in ssSSc patients (29%/19%) but not reach significant difference. The prevalence of antinuclear and anticentromere antibodies and slow capilaroscopic pattern was similar. Sicca syndrome (13%/30%; p=0.024), digital ulcers (16%/50%; p<0.0001), calcinosis (11%/26%; p=0.047) and acroosteolysis (0% /10%; p=0.028) were more frequently in lcSSc. Survival at 5, 10, and 15 yr was not different in ssSSc and lcSSc patients (100%/98%, 100%/98%, and 92%/89%, respectively). CONCLUSIONS: ssSSc and lcSSc patients share demographic, clinical and immunologic features. Survival is also similar in both groups. Differences are mainly due to peripheral vascular manifestations. However, despite great similarities, we believe that ssSSc patients should be considered as a different subset in order to avoid misdiagnosis. ssSSc patients should be truly differentiated from early SSc using sensitive and specific studies looking for any asymptomatic organ involvement.
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Calcinosis/etiología , Dermatosis de la Mano/etiología , Hipertensión Pulmonar/etiología , Esclerodermia Sistémica/complicaciones , Síndrome de Sjögren/etiología , Úlcera Cutánea/etiología , Acroosteólisis/etiología , Adulto , Anciano , Trastornos de la Motilidad Esofágica/etiología , Femenino , Humanos , Enfermedades Pulmonares Intersticiales/etiología , Masculino , Persona de Mediana Edad , Esclerodermia Difusa/clasificación , Esclerodermia Difusa/complicaciones , Esclerodermia Difusa/fisiopatología , Esclerodermia Limitada/clasificación , Esclerodermia Limitada/complicaciones , Esclerodermia Limitada/fisiopatología , Esclerodermia Sistémica/clasificación , Esclerodermia Sistémica/fisiopatologíaRESUMEN
INTRODUCTION: Blood pressure increases in cold periods, but its implications on prevalence of hypertension and on individual progression to hypertension remain unclear. Our aim was to develop a pre-screening test for identifying candidates to suffer hypertension only in cold months among non-hypertensive subjects. METHODS: We included 95,277 subjects registered on a primary care database from Girona (Catalonia, Spain), with ≥ 3 blood pressure measures recorded between 2003 and 2009 and distributed in both cold (October-March) and warm (April-September) periods. We defined four blood pressure patterns depending on the presence of hypertension through these periods. A Cox model determined the risk to develop vascular events associated with blood pressure patterns. A logistic regression distinguished those nonhypertensive individuals who are more prone to suffer cold-induced hypertension. Validity was assessed on the basis of calibration (using Brier score) and discrimination (using the area under the receiver operating characteristics). RESULTS: In cold months, the mean systolic blood pressure increased by 3.3 ± 0.1 mmHg and prevalence of hypertension increased by 8.2%. Cold-induced hypertension patients were at higher vascular events risk (Hazard ratio=1.44 [95% Confidence interval 1.15-1.81]), than nonhypertensive individuals. We identified age, diabetes, body mass index and prehypertension as the major contributing factors to cold-induced hypertension onset. DISCUSSION: Hypertension follows a seasonal pattern in some individuals. We recommend screening for hypertension during the cold months, at least in those nonhypertensive individuals identified as cold-induced hypertensive by this assessment tool.
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Presión Sanguínea , Frío/efectos adversos , Hipertensión/epidemiología , Estaciones del Año , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Hipertensión/etiología , Modelos Logísticos , Masculino , Tamizaje Masivo , Persona de Mediana Edad , Prevalencia , Modelos de Riesgos Proporcionales , Medición de Riesgo , Adulto JovenRESUMEN
BACKGROUND: In the province of Tarragona (Spain), 24% of immigrants come from countries in the Maghreb. 40% of Maghrebis residing in Spain say their linguistic command of Spanish is inadequate, which could hinder their relationship with healthcare professionals. The use of minors as translators by health services is a fairly common practice. The suitability of using children as translators has been questioned, although there has been little specific research on the subject and most has been from the perspective of professionals. The aim of this study was to qualitatively analyze the discourse of Maghrebi adults to the use of Maghrebi minors as translators in the health services. METHODS: A qualitative study using 12 in-depth interviews and 10 focus groups with Maghrebi adults living in Tarragona. The scope of the study was primary healthcare and hospital services in the area. A content analysis was performed using open coding. RESULTS: The practice studied is attributed to a lack of funding for translation resources, and prioritization of adults' work over children's education. It is seen as a convenient solution to the community's communication problems, although it is considered unreliable and detrimental to the rights of the child. The attitudes of healthcare professionals to the phenomenon studied varies from acceptance without any ethical concerns to concern about its effects on the child. The solutions proposed are the organization of translation resources with a proactive approach which are adapted to real needs, and a change in the focus of language training activities for the adults in the community. CONCLUSIONS: It is necessary to reconcile access to healthcare for Maghrebi adults with the rights of children who act as translators in the healthcare context. This requires coordination between health and educational institutions, changes in the organization and provision of translation resources, and a guarantee that immigrants have employment rights under the same conditions as Spanish nationals.
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Actitud , Emigrantes e Inmigrantes/estadística & datos numéricos , Accesibilidad a los Servicios de Salud/estadística & datos numéricos , Traducción , Adolescente , Adulto , África del Norte/etnología , Actitud del Personal de Salud , Niño , Femenino , Humanos , Entrevistas como Asunto , Masculino , Persona de Mediana Edad , Menores , Investigación Cualitativa , Factores Socioeconómicos , España/epidemiologíaRESUMEN
BACKGROUND AND AIMS: Inflammatory pouch disorders exhibit a heterogeneous clinical spectrum and therapeutic requirements have not been properly studied. METHODS: This retrospective, multicentre study included ulcerative colitis patients with ileal pouch construction and were later diagnosed with an inflammatory pouch disorder between 1995 and 2020. Classifications, behaviour and therapies applied were recorded and compared in the long-term. RESULTS: Overall, 338 patients were recruited. The most common disorders were pouchitis (n = 258, 76%), Crohn's disease of the pouch (n = 55, 16%) and cuffitis (n = 25, 7%). Pouchitis presented mainly as chronic (65.2%) and recurrent (87%) forms. Crohn's disease manifested as stricturing/penetrating in 53% of cases and perianal disease in 42%. Patients received multiple therapies: 86% antibiotics, 42% steroids, 27% immunosuppressants, 43% biologics and 27% surgery. Compared with pouchitis, Crohn's disease of the pouch was characterised by a later diagnosis (99 vs. 55 months, p < 0.001) and greater needs for immunosuppressants (OR 3.53, 1.79-6.94, p < 0.0001), biologics (OR 5.45, 2.78-10.6, p < 0.0001) and surgeries (OR 2.65, 1.43-4.89, p < 0.001). CONCLUSIONS: Chronic pouchitis is the most common pouch disorder presentation. These entities have diverse therapeutics requirements, particularly for Crohn's disease of the pouch.
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BACKGROUND: Neurological soft signs (NSS) have been inconsistently reported in obsessive-compulsive disorder (OCD) but may make an impact on treatment response. Method The current study examined the presence of NSS in two independent European samples of OCD patients (combined 85 patients and 88 matched healthy controls) using a standardized instrument and conducted a meta-analysis of all published studies identified in the literature with the aim to provide a more definitive answer to the question of whether OCD patients are characterized by increased NSS. RESULTS: Both empirical studies found elevated NSS scores in patients compared with matched controls. The results of the meta-analysis, which included 15 studies (combined 498 patients and 520 controls) showed large effect sizes (Hedges' g=1.27, 95% confidence interval 0.80-1.75), indicating that OCD patients have significantly higher rates of NSS than matched controls on both sides of the body and in multiple domains (motor coordination, sensory integration and primitive reflexes). The results were robust and remained largely unchanged in our reliability analyses, which controlled for possible outliers. Meta-regression was employed to examine the role of potential variables of interest including sociodemographic variables, symptom severity, medication effects and the use of different instruments, but none of these variables was clearly associated with NSS. CONCLUSIONS: As a group, OCD patients are characterized by increased rates of NSS, compared with healthy controls. However, their origins and potential clinical importance remain to be clarified. Future directions for research are discussed.
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Enfermedades del Sistema Nervioso/epidemiología , Pruebas Neuropsicológicas/estadística & datos numéricos , Trastorno Obsesivo Compulsivo/epidemiología , Adulto , Estudios de Casos y Controles , Modificador del Efecto Epidemiológico , Femenino , Humanos , Masculino , Enfermedades del Sistema Nervioso/complicaciones , Examen Neurológico , Trastorno Obsesivo Compulsivo/complicaciones , Desempeño Psicomotor/fisiología , Reflejo/fisiología , Análisis de Regresión , Reproducibilidad de los Resultados , Sensación/fisiología , España , Reino UnidoRESUMEN
BACKGROUND: There are no data on atmospheric pollen in Talca. In the present work, our aim is to describe the amount of pollen grain in the atmosphere of the city of Talca likely to cause pollinosis of its inhabitants. METHODS: A volumetric Hirst sampler (Burkard seven-day recording device) was used to study pollen levels. It was placed in the centre of Talca from May 2007 to April 2008. RESULTS: The highest airborne presence of pollen, as measured in weekly averages, was Platanus acerifolia with a maximum weekly daily average of 203 grains/m³ registered during September and October. The second highest was Acer pseudoplatanus with a maximum weekly daily average of 116 grains/m³. Populus spp. had a maximum weekly daily average 103 grains/m³. Olea europaea reached 19 grains/m³ in November. Grasses presented high levels of pollen counts with a maximum weekly daily average of 27 grains/m³ from the end of August until the end of January. Pollens of Plantago spp. Rumex acetosella and Chenopodium spp. had a similar distribution and were present from October to April with maximum weekly daily average of 7 grains/m³, 7 grains/m³ and 3 grains/m³ respectively. Significant concentrations of Ambrosia artemisiifolia were detected from February until April. CONCLUSION: The population of Talca was exposed to high concentrations of allergenic pollen, such as P. acerifolia, A. pseudoplatanus, and grasses in the months of August through November. The detection of O. europaea and A. artemisiifolia is important as these are emergent pollens in the city of Talca. Aerobiological monitoring will provide the community with reliable information about the level of allergenic pollens, improving treatment and quality of life of patients with respiratory allergy.
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Contaminantes Atmosféricos/análisis , Contaminación del Aire/estadística & datos numéricos , Alérgenos/análisis , Cycadopsida , Monitoreo del Ambiente , Magnoliopsida , Polen , Contaminación del Aire/análisis , Chile , Monitoreo del Ambiente/instrumentación , Monitoreo del Ambiente/métodos , Estaciones del AñoRESUMEN
TNFRSF6B and TNFRSF14 genes were recently associated with Crohn's disease and rheumatoid arthritis. TNFRSF14 is known as herpes virus entry mediator (HVEM), and herpes viruses have been involved in the aetiology of multiple sclerosis (MS). MS patients present human herpes virus 6 (HHV6) in active plaques and increased antibody responses to HHV6. We aimed to ascertain the role of these genes in MS susceptibility and to investigate the relationship of the gene encoding the widely expressed HVEM receptor with the active replication of HHV6 found in some MS patients. Genotyping of 1370 Spanish MS patients and 1715 ethnically matched controls was performed. HHV6A DNA levels (surrogate of active viral replication) were analysed in serum of MS patients during a 2-year follow-up. Both polymorphisms were associated with MS predisposition, with stronger effect in patients with HHV6 active replication-TNFRSF6B-rs4809330(*)A: P=0.028, OR=1.13; TNFRSF14-rs6684865(*)A: overall P=0.0008, OR=1.2; and HHV6-positive patients vs controls: P=0.017, OR=1.69.
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Esclerosis Múltiple/genética , Miembro 14 de Receptores del Factor de Necrosis Tumoral/genética , Miembro 6b de Receptores del Factor de Necrosis Tumoral/genética , Artritis Reumatoide/genética , Enfermedad de Crohn/genética , Predisposición Genética a la Enfermedad , Genotipo , Herpesvirus Humano 6/genética , Herpesvirus Humano 6/inmunología , Humanos , Esclerosis Múltiple/virología , Polimorfismo Genético , EspañaRESUMEN
AIMS/HYPOTHESIS: Protein-tyrosine phosphatase 1B (PTP1B) negatively regulates insulin action, promoting attenuation of the insulin signalling pathway. The production of this phosphatase is enhanced in insulin-resistant states, such as obesity and type 2 diabetes, where high levels of proinflammatory cytokines (TNF-α, IL-6) are found. In these metabolic conditions, insulin action on glycogen metabolism in skeletal muscle is greatly impaired. We addressed the role of PTP1B on glycogen metabolism in basal and insulin-resistant conditions promoted by TNF-α. METHODS: We studied the effect of TNF-α in the presence and absence of insulin on glycogen content and synthesis, glycogen synthase (GS) and glycogen phosphorylase (GP) activities and on glycogen synthesis and degradation signalling pathways. For this purpose we used immortalised cell lines isolated from skeletal muscle from mice lacking PTP1B. RESULTS: Absence of PTP1B caused activation of GS and GP with a net glycogenolytic effect, reflected in lower amounts of glycogen and activation of the glycogenolytic signalling pathway, with higher rates of phosphorylation of cyclic adenosine monophosphate-dependent kinase (PKA), phosphorylase kinase (PhK) and GP phosphorylation. Nevertheless, insulin action was strongly enhanced in Ptp1b (also known as Ptpn1)(-/-) cells in terms of glycogen content, synthesis, GS activation rates and GS Ser641 dephosphorylation. Treatment with TNF-α augmented the activity ratios of both GS and GP, and impaired insulin stimulation of glycogen synthesis in wild-type myocytes, whereas Ptp1b (-/-) myocytes restored this inhibitory effect. We report a glycogenolytic effect of TNF-α, as demonstrated by greater activation of the degradation signalling cascade PKA/PhK/GP. In our model, this effect is mediated by the activation of PKA. CONCLUSIONS/INTERPRETATION: We provide new data about the role of PTP1B in glycogen metabolism and confirm the beneficial effect that absence of the phosphatase confers against an insulin-resistant condition.
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Glucógeno/metabolismo , Proteína Tirosina Fosfatasa no Receptora Tipo 1/metabolismo , Animales , Animales Recién Nacidos , Western Blotting , Línea Celular , Células Cultivadas , Activación Enzimática/efectos de los fármacos , Glucógeno Fosforilasa/metabolismo , Glucógeno Sintasa/metabolismo , Inmunoprecipitación , Insulina/farmacología , Ratones , Ratones Mutantes , Fosforilasa Quinasa/metabolismo , Fosforilación/efectos de los fármacos , Proteína Tirosina Fosfatasa no Receptora Tipo 1/genética , Factor de Necrosis Tumoral alfa/farmacologíaRESUMEN
Plasma acutephase protein pentraxin 3 (PTX3) concentration is dysregulated in human obesity and metabolic syndrome. Here, we explore its relationship with insulin secretion and sensitivity, obesity markers, and adipose tissue PTX3 gene expression. Plasma PTX3 protein levels were analyzed in a cohort composed of 27 lean [body mass index (BMI) ≤ 25 kg/m(2)] and 48 overweight (BMI 25-30 kg/m(2)) men (cohort 1). In this cohort, plasma PTX3 was negatively correlated with fasting triglyceride levels and insulin secretion after intravenous and oral glucose administration. Plasma PTX3 protein and PTX3 gene expression in visceral (VAT) and subcutaneous (SAT) whole adipose tissue and adipocyte and stromovascular fractions were analyzed in cohort 2, which was composed of 19 lean, 28 overweight, and 15 obese subjects (BMI >30 kg/m(2)). An inverse association with body weight and waist/hip ratio was observed in cohort 2. In VAT depots, PTX3 mRNA levels were higher in subjects with BMI >25 kg/m(2) than in lean subjects, positively correlated with IL-1ß mRNA levels, and higher in the adipocyte than stromovascular fraction. Human preadipocyte SGBS cell line was used to study PTX3 production in response to factors that obesity entails. In SGBS adipocytes, PTX3 gene expression was enhanced by IL-1ß and TNFα but not IL-6 or insulin. In conclusion, the negative correlation between PTX3 and glucose-stimulated insulin secretion suggests a role for PTX3 in metabolic control. PTX3 gene expression is upregulated in VAT depots in obesity, despite lower plasma PTX3 protein, and by some proinflammatory cytokines in cultured adipocytes.
Asunto(s)
Proteína C-Reactiva/análisis , Proteína C-Reactiva/genética , Insulina/metabolismo , Grasa Intraabdominal/metabolismo , Obesidad/sangre , Obesidad/metabolismo , Componente Amiloide P Sérico/análisis , Componente Amiloide P Sérico/genética , Adipocitos/efectos de los fármacos , Adipocitos/metabolismo , Adipocitos/patología , Adulto , Anciano , Proteína C-Reactiva/metabolismo , Células Cultivadas , Estudios de Cohortes , Citocinas/farmacología , Femenino , Regulación de la Expresión Génica/efectos de los fármacos , Humanos , Lactante , Mediadores de Inflamación/farmacología , Secreción de Insulina , Grasa Intraabdominal/efectos de los fármacos , Masculino , Persona de Mediana Edad , Obesidad/genética , Obesidad/patología , Componente Amiloide P Sérico/metabolismo , Regulación hacia Arriba/efectos de los fármacosRESUMEN
The effects of high intensity pulsed electric fields (HIPEF) (35kV/cm with 4µs bipolar pulses at 200Hz for 800 or 1400µs) or thermal (90°C, 60s) treatments over phenolic and carotenoid compounds of a fruit juice-soymilk (FJ-SM) beverage stored at 4°C were evaluated and compared, having the untreated beverage as a reference. Coumaric acid, narirutin and hesperidin were the most abundant phenolic compounds in the FJ-SM beverage, while the main carotenoids were lutein, zeaxanthin and ß-carotene. Immediately after HIPEF or heat processing, hesperidin content of the beverage showed a huge rise, resulting in a significant increase on the total phenolic concentration. Regarding carotenoid concentration, HIPEF or thermal treatment lead to a significant decrease; lutein, zeaxanthin and ß-cryptoxanthin being the most affected compounds. In contrast, the content of some individual phenolics and carotenoids increased with time, while others tended to decrease or remained with no significant changes with regards to their initial values. Total phenolic concentration seemed to be highly stable during storage; while, total carotenoid content gradually diminished, irrespectively of the treatment applied. Overall, the changes observed in HIPEF treated FJ-SM beverage were less than those in the heat processed one. Hence, HIPEF is a feasible technology to obtain FJ-SM beverages with extended shelf-life and a similar profile of antioxidant compounds to freshly made beverages.
RESUMEN
OBJECTIVES: To determine the prevalence of ankle-brachial index (ABI)<0.9 and symptomatic peripheral arterial disease (PAD), association with cardiovascular risk factors (CVRF), and impact of adding ABI measurement to coronary heart disease (CHD) risk screening. DESIGN: Population-based cross-sectional survey of 6262 participants aged 35-79 in Girona, Spain. METHODS: Standardized measurements (CVRF, ABI, 10-year CHD risk) and history of intermittent claudication (IC), CHD, and stroke were recorded. ABI<0.9 was considered equivalent to moderate-to-high CHD risk (> or =10%). RESULTS: ABI<0.9 prevalence was 4.5%. Only 0.62% presented low ABI and IC. Age, current smoker, cardiovascular disease, and uncontrolled hypertension independently associated with ABI<0.9 in both sexes; IC was also associated in men and diabetes in women. Among participants 35-74 free of cardiovascular disease, 6.1% showed moderate-to-high 10-year CHD risk; adding ABI measurement yielded 8.7%. Conversely, the risk function identified 16.8% of these participants as having 10-year CHD risk>10%. In participants 75-79 free of cardiovascular disease, the prevalence of ABI<0.9 (i.e., CHD risk> or =10%) was 11.9%. CONCLUSIONS: ABI<0.9 is relatively frequent in those 35-79, particularly over 74. However, IC and CHD risk> or =10% indicators are often missing. Adding ABI measurement to CHD-risk screening better identifies moderate-to-high cardiovascular risk patients.
Asunto(s)
Tobillo/irrigación sanguínea , Determinación de la Presión Sanguínea , Presión Sanguínea , Arteria Braquial/fisiopatología , Enfermedades Cardiovasculares/epidemiología , Tamizaje Masivo/métodos , Enfermedades Vasculares Periféricas/epidemiología , Adulto , Anciano , Enfermedades Cardiovasculares/etiología , Enfermedades Cardiovasculares/fisiopatología , Estudios Transversales , Femenino , Encuestas Epidemiológicas , Humanos , Claudicación Intermitente/epidemiología , Claudicación Intermitente/etiología , Claudicación Intermitente/fisiopatología , Masculino , Persona de Mediana Edad , Oportunidad Relativa , Enfermedades Vasculares Periféricas/complicaciones , Enfermedades Vasculares Periféricas/fisiopatología , Valor Predictivo de las Pruebas , Prevalencia , Medición de Riesgo , Factores de Riesgo , España/epidemiología , Factores de TiempoRESUMEN
BACKGROUND: Because of the limited data concerning drug risks in pregnancy, health professionals are often deprived of relevant and sufficient information related to prescribing or dispensing during pregnancy. However, previous studies have emphasised the widespread French prescription of several drugs (sometimes "typically French") which have not been assessed in pregnant women. OBJECTIVES: The aim of the present study was to create the first French database of drugs prescribed and dispensed during pregnancy and the outcome of these pregnancies. METHODS: This feasibility study concerns pregnant women who gave birth to a baby between 1 July 2004 to 30 June 2005 in Haute-Garonne and who are registered in the French Health Insurance Service. Data sources include (1) the French Health Insurance Database (drugs prescribed during pregnancy), (2) the Mother and Child Protection Centre Database (newborn health at birth and 9 months after) and (3) the Antenatal Diagnostic Centre Database (medical pregnancy interruptions). RESULTS: The database is composed of 10,174 "mother-outcome" pairs. The prevalence rate of congenital anomalies was 2.2%. Pregnant women were prescribed 11.3 +/- 8.2 different drugs. Among the 20 most frequently prescribed drugs, around half of them have not been evaluated in pregnant women. CONCLUSIONS: The first results of this study show that implementation of a French database on prescription of drugs and pregnancy outcomes is feasible. Compared with several databases available in other countries, EFEMERIS provides exact data on period of exposure to drugs, pregnancy terminations, and follow up of the baby 9 months after birth. Recording these data would make it possible to assess the risk of malformations due to a greater number of drugs and would contribute to international drug evaluation studies.