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1.
Artículo en Inglés | MEDLINE | ID: mdl-35899400

RESUMEN

Summary: Background. The sensitization profile of patients allergic to house dust mites (HDM) and its molecular diagnosis may determine treatment and evolution of the disease. The present study investigates the prevalence of Der p 23 sensitization and its relation to asthma in a population of HDM-allergic patients. Methods. We conducted a cross-sectional study of 891 patients with HDM allergy with symptoms of rhinitis and 52.1% of them with asthma. Total and specific IgE (sIgE) was measured against Dermatophagoides pteronyssinus and its molecular components (Der p 1, Der p 2 and Der p 23) and the storage mite Lepidoglyphus destructor using ImmunoCAP. Prevalence of sensitization and levels of sIgE were analysed according to asthma diagnosis and asthma severity. Results. Der p 23 was the predominant allergen in this population (83.7%) but IgE levels were lower than those of sIgE to Der p 1 and Der p 2. A good correlation was found between sIgE to Der p 23 and the other allergens. A total of 8.2% patients were monosensitized to Der p 23. Asthma was more frequent in patients with positive sIgE against Der p 23 than in patients without this sensitization (52.8% vs 42.8%, p = 0.027). A tendency to increase both total IgE and sIgE was observed in relation to the severity of asthma from intermittent mild asthma to persistent moderate asthma but a substantial decrease in total IgE and sIgE was detected in more severe asthmatics. Conclusions. Der p 23 might be a prevalent allergen in regions with high rates of HDM exposure. Even though sIgE levels against this allergen are usually low, its presence could increase the risk of asthma.

2.
J Investig Allergol Clin Immunol ; 31(3): 212-227, 2021 Jun 22.
Artículo en Inglés | MEDLINE | ID: mdl-32732179

RESUMEN

Immunoglobulin G4-related disease (IgG4-RD) is a fibroinflammatory disorder that begins in 1 or more organs as inflammatory tumors that progress toward fibrosis. It is often accompanied by elevated serum IgG4. IgG4-RD was first described in 2003 as a new concept encompassing a number of immunoallergic diseases that had previously been considered unrelated. IgG4-RD mainly affects middleaged and older men. It consists of upregulation and expansion of CD4+ cytotoxic T lymphocytes, oligoclonal plasmablasts, and other inflammatory cells that infiltrate affected tissues and induce inflammation, organ dysfunction, and fibrosis. Symptoms depend on the location, severity, and extent of the disease. Virtually any organ can be affected, including the pancreas, salivary glands, lacrimal glands, thyroid gland, retro-orbital tissue, lymph nodes, retroperitoneum, mediastinum, lung, kidney, aorta, serosal surfaces, and meninges. Patients with widespread disease may present general symptoms. At least 30%-40% of patients are atopic or display atopic traits such as eosinophilia and elevated serum IgE levels. Additional laboratory features include increased serum IgG4 concentrations, increased blood IgG4-plasmablasts, hypergammaglobulinemia, and hypocomplementemia. Diagnosis of IgG4-RD is based on a clinicopathological correlation. Lymphoplasmacytic infiltrate with abundant IgG4-positive plasma cells, storiform-type fibrosis, obliterative phlebitis, and tissue eosinophilia are the pathological hallmarks. Therapy for IgG4-RD is based primarily on corticosteroids but may include additional immunomodulatory drugs and monoclonal antibodies such as rituximab. In individuals with allergic features, IgG4-RD should be suspected when a history of unexplained swelling is observed in 1 or more organs, particularly if they respond to corticosteroids and the patients are men in the sixth decade of life and beyond.


Asunto(s)
Proteínas del Sistema Complemento/metabolismo , Hipersensibilidad Inmediata/inmunología , Enfermedad Relacionada con Inmunoglobulina G4/inmunología , Alergólogos , Animales , Edema , Eosinofilia , Humanos , Hipergammaglobulinemia , Hipersensibilidad Inmediata/diagnóstico , Inmunoglobulina E/metabolismo , Enfermedad Relacionada con Inmunoglobulina G4/diagnóstico
3.
J Investig Allergol Clin Immunol ; 31(3): 228-235, 2021 Jun 22.
Artículo en Inglés | MEDLINE | ID: mdl-32043465

RESUMEN

OBJECTIVE: To define the sensitization pattern of patients with anaphylaxis to Vespa velutina nigrithorax (VVN). METHODS: We studied 100 consecutive Spanish patients with anaphylaxis to Hymenoptera venom and systematically determined specific IgE (sIgE) to whole venoms (Vespula species, Polistes dominula, Apis mellifera, Vespa crabro, and Dolichovespula maculata) and their molecular components (rApi m 1, rApi m 5, rApi m 10, rVes v 1, rVes v 5, rPol d 5, and cross-reactive carbohydrates). Specific IgE to VVN venom and its antigen 5 (nVesp v 5) were measured in a subsample. RESULTS: Seventy-seven patients had anaphylaxis to VVN. Of these, only 16 (20.8%) reported previous VVN stings, but were stung by other Hymenoptera. Positive sIgE (>0.35 kUA/L) to each of the whole venoms was detected in >70% of patients (Vespula species in 100%). The components showing >50% positivity were rApi m 5 (51.4%), rPol d 5 (80.0%), and rVes v 5 (98.7%). This pattern was similar to that of Vespula species anaphylaxis (n=11) but different from that of A mellifera anaphylaxis (n=10). Specific IgE to nVesp v 5 was positive in all patients (n=15) with VVN anaphylaxis and was correlated with sIgE to both rVes v 5 (R=0.931) and rPol d 5 (R=0.887). CONCLUSIONS: VVN has become the commonest cause of Hymenoptera anaphylaxis in our area. Most cases report no previous VVN stings. Their sensitization pattern is similar to that of patients with anaphylaxis to other Vespidae. Specific IgE to antigen-5 from VVN, Vespula species, and P dominula are strongly correlated in patients with VVN anaphylaxis.


Asunto(s)
Alérgenos/inmunología , Anafilaxia/inmunología , Hipersensibilidad/inmunología , Mordeduras y Picaduras de Insectos/inmunología , Venenos de Avispas/inmunología , Adulto , Anciano , Anciano de 80 o más Años , Anafilaxia/epidemiología , Animales , Femenino , Humanos , Hipersensibilidad/epidemiología , Inmunización , Inmunoglobulina E/metabolismo , Mordeduras y Picaduras de Insectos/epidemiología , Masculino , Persona de Mediana Edad , España/epidemiología , Avispas , Adulto Joven
4.
Stat Med ; 38(27): 5161-5181, 2019 11 30.
Artículo en Inglés | MEDLINE | ID: mdl-31588584

RESUMEN

Glycated haemoglobin (HbA1c) is a sensitive marker of blood glucose in patients with diabetes. However, levels can vary considerably, even amongst individuals with similar mean blood glucose concentrations. Other glycated proteins, such as fructosamine, can also act as blood sugar markers, but estimating HbA1c and fructosamine via independent models may lead to errors of interpretation regarding disease severity. From a clinical standpoint, it would be of great interest to know the factors that affect the mean concentration of both HbA1c and fructosamine, which influence the variability in the concentrations of these glycated markers and cause HbA1c/fructosamine discordance. Flexible models are required to illustrate the behaviour of these variables as well as the association between them. This work reviews existing models that might serve in this regard. Flexible copula regression models using splines were used to provide a better understanding of the behaviour of both glycated proteins and the relationship between them under the possible influence of different covariates. This work shows the usefulness of this type of models in practise and provides a basis for their clinical interpretation by means of an understandable case study. Ultimately, to better understand the effects of each continuous covariate, they are represented at the true scale of the response variables.


Asunto(s)
Control Glucémico , Análisis de Regresión , Biomarcadores/sangre , Glucemia/análisis , Interpretación Estadística de Datos , Diabetes Mellitus/sangre , Diabetes Mellitus/terapia , Femenino , Fructosamina/sangre , Hemoglobina Glucada/análisis , Control Glucémico/normas , Control Glucémico/estadística & datos numéricos , Humanos , Masculino , Persona de Mediana Edad , Modelos Estadísticos
6.
J Investig Allergol Clin Immunol ; 29(3): 213-221, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-30183656

RESUMEN

BACKGROUND AND OBJECTIVE: Alcohol consumption is associated with enhanced TH2 immune responses. Objective: To investigate the frequency of false-positive results in serological tests for allergy in alcoholic patients. METHODS: A total of 138 alcoholic patients consecutively admitted to hospital underwent a panel of allergy tests that included serum total IgE, a multiallergen IgE test (UniCAP Phadiatop), and skin prick tests to relevant aeroallergens in the area, which were considered the standard reference for atopy. In selected cases with positive specific IgE (sIgE) to cross-reactive carbohydrate determinants (CCDs) on ImmunoCAP, we determined sIgE to hymenoptera venom components (ADVIA Centaur) and a microarray of 103 allergen components (ISAC). RESULTS: Increased serum total IgE (>170 IU/mL) was observed in 59/110 (54%) of nonatopic (skin prick test-negative) patients. The result of the multiallergen IgE test was positive in 46 nonatopic patients (42%). This finding was closely associated with high serum concentrations of total IgE and sIgE to CCDs. The vast majority of patients with positive CCD-sIgE showed positivity to glycosylated plant and hymenoptera allergen components on ISAC and ADVIA Centaur. Only 1 out of 26 patients with positive sIgE to CCD and hymenoptera venom developed honeybee venom allergy after a median follow-up of 166 months. Correlations between measurements of sIgE to CCD markers on ImmunoCAP, ADVIA Centaur, and ISAC were imperfect. CONCLUSIONS: Serological tests for allergy should be interpreted with caution in alcoholic patients, who frequently have increased levels of total IgE and CCD-sIgE and subsequent positivity of sIgE to glycosylated allergen components, irrespective of the method used.


Asunto(s)
Alcoholismo/diagnóstico , Hipersensibilidad/diagnóstico , Inmunoglobulina E/sangre , Serología/métodos , Células Th2/inmunología , Adulto , Anciano , Alcoholismo/inmunología , Alérgenos/inmunología , Animales , Reacciones Cruzadas , Reacciones Falso Positivas , Femenino , Estudios de Seguimiento , Humanos , Himenópteros/inmunología , Hipersensibilidad/inmunología , Proteínas de Insectos/inmunología , Masculino , Persona de Mediana Edad , Pruebas Cutáneas , Ponzoñas/inmunología
7.
Ann Oncol ; 29(4): 835-856, 2018 04 01.
Artículo en Inglés | MEDLINE | ID: mdl-29452346

RESUMEN

Background: The optimal chemotherapeutic regimen for use beyond the second line for patients with metastatic colorectal cancer (mCRC) remains unclear. Materials and methods: We systematically searched the Cochrane Database of Systematic Reviews, EMBASE and Medline for records published between January 2002 and May 2017, and cancer congress databases for records published between January 2014 and June 2017. Eligible studies evaluated the efficacy, safety and patient-reported outcomes of monotherapies or combination therapies at any dose and number of treatment cycles for use beyond the second line in patients with mCRC. Studies were assessed for design and quality, and a qualitative data synthesis was conducted to understand the impact of treatment on overall survival and other relevant cancer-related outcomes. Results: The search yielded 938 references of which 68 were included for qualitative synthesis. There was limited evidence to support rechallenge with chemotherapy, targeted therapy or both. Compared with placebo, an overall survival benefit for trifluridine/tipiracil (also known as TAS-102) or regorafenib has been shown for patients previously treated with conventional chemotherapy and targeted therapy. There was no evidence to suggest a difference in efficacy between these treatments. Patient choice and quality of life at this stage of treatment should also be considered when choosing an appropriate therapy. Conclusions: These findings support the introduction of an approved agent such as trifluridine/tipiracil or regorafenib beyond the second line before any rechallenge in patients with mCRC who have failed second-line treatment.


Asunto(s)
Neoplasias Colorrectales/tratamiento farmacológico , Neoplasias Colorrectales/patología , Metástasis de la Neoplasia/tratamiento farmacológico , Compuestos de Fenilurea/uso terapéutico , Piridinas/uso terapéutico , Trifluridina/uso terapéutico , Progresión de la Enfermedad , Combinación de Medicamentos , Drogas en Investigación , Humanos , Recurrencia Local de Neoplasia/tratamiento farmacológico , Compuestos de Fenilurea/administración & dosificación , Piridinas/administración & dosificación , Pirrolidinas , Timina , Trifluridina/administración & dosificación , Uracilo/análogos & derivados
9.
Scand J Immunol ; 85(4): 272-279, 2017 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-28128470

RESUMEN

Immunoglobulin D (IgD) is the least studied of immunoglobulin classes. This study sought to investigate the potential relationship between demographic, metabolic, lifestyle and immunological factors, and serum IgD concentrations in a general adult population. We measured serum IgD concentrations by means of a commercial turbidimetric assay in 413 individuals (median age, 55 years; 45% males), randomly selected from the adult population of a Spanish municipality. Serum IgD concentrations displayed considerable variation in the population, ranging from undetectable (<6.7 mg/l) to 878 mg/l. Serum IgD concentrations were undetectable in 78 cases (18.9%) and >100 mg/l in 39 cases (9.4%). Median IgD was 21.9 mg/l. Serum IgD concentrations were negatively associated with age and positively associated with smoking, after adjustment for potential confounders. Overweight individuals showed lower concentrations of IgD than did normal-weight individuals. Atopy (positivity of skin tests to aeroallergens) was not significantly associated with IgD concentrations, although non-symptomatic atopics showed higher IgD concentrations. No consistent association was observed between serum IgD concentrations and gender, metabolic syndrome, or alcohol consumption. No significant association was found between baseline IgD concentrations and development of either allergic or immune disease after a median 11.4 years of follow-up. In conclusion, serum IgD concentrations in adults show a wide variation in the population and may be influenced by common factors, particularly age and smoking habit. These factors should be taken into account when defining reference ranges for serum IgD concentrations.


Asunto(s)
Consumo de Bebidas Alcohólicas/sangre , Inmunoglobulina D/sangre , Síndrome Metabólico/sangre , Fumar/sangre , Adulto , Factores de Edad , Anciano , Anciano de 80 o más Años , Consumo de Bebidas Alcohólicas/inmunología , Índice de Masa Corporal , Femenino , Humanos , Inmunoglobulina D/inmunología , Masculino , Persona de Mediana Edad , Valores de Referencia , Factores Sexuales , Pruebas Cutáneas , Fumar/inmunología , España , Adulto Joven
10.
J Investig Allergol Clin Immunol ; 26(5): 304-309, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27373988

RESUMEN

BACKGROUND AND OBJECTIVE: Little is known about the role of molecular diagnosis in house dust mite (HDM) allergy. In this study, we investigated the association between the sensitization profile of adolescent and adult HDM-allergic patients and asthma in a region with high rates of exposure to HDM. METHODS: We conducted a cross-sectional study of 384 HDM-allergic patients (38.5%, males; median age, 28 years). A total of 368 patients (95.8%) had rhinitis, and 175 (45.6%) had asthma. Specific IgE (sIgE) to Dermatophagoides pteronyssinus, nDer p 1, rDer p 2, and rPen a 1 was measured in all patients. sIgE to Lepidoglyphus destructor was measured in patients (n=301) with a positive skin test result. RESULTS: Significantly higher concentrations of sIgE to Der p 1 and sIgE to Der p 2 were observed in patients with asthma than in those without asthma. The proportion of asthmatic patients was higher among individuals who reacted (≥0.35 kUA/L) to both Der p 1 and Der p 2 (147/291, 50.5%) than among those who reacted to only 1 allergen (either Der p 1 or Der p 2, 18/55, 32.7%) or neither allergen (10/38, 26.3%, P=.002). Reactivity to both allergens was associated with asthma after adjusting for age and sex (OR, 2.87; 95%CI, 1.32-6.20). Higher concentrations of sIgE to L destructor were observed in patients with asthma than in patients without asthma. Tropomyosin sIgE ≥0.35 kUA/L was detected in only 6 individuals (1.6%). CONCLUSIONS: L destructor may be a relevant allergen in high-exposure areas. Dual sensitization (ie, IgE to both Der p 1 and Der p 2) may help to identify HDM-allergic patients who are at risk of asthma.


Asunto(s)
Alérgenos/inmunología , Antígenos Dermatofagoides/inmunología , Proteínas de Artrópodos/inmunología , Asma/inmunología , Cisteína Endopeptidasas/inmunología , Dermatophagoides pteronyssinus/inmunología , Adolescente , Adulto , Anciano , Animales , Estudios Transversales , Femenino , Humanos , Inmunoglobulina E/inmunología , Masculino , Persona de Mediana Edad , Rinitis/inmunología , Pruebas Cutáneas/métodos , Adulto Joven
12.
Allergy ; 70(11): 1493-6, 2015 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-26186699

RESUMEN

This study investigated the sensitization pattern of crustacean-allergic patients according to tolerance to molluscs. Thirty-one patients with anaphylaxis to crustaceans (14 with mollusc allergy and 17 with mollusc tolerance) were studied using skin prick tests (SPTs), specific IgEs (sIgEs) and SDS-PAGE immunoblotting. IgE-reactive shrimp proteins were identified by proteomic analyses. Patients with mollusc allergy presented more frequently SPTs positive to molluscs and higher sIgE titres in response to both molluscs and crustaceans. Shrimp-sIgE and rPen a1-sIgE values of 1.57 kUA /l and 4.38 kUA /l, respectively, showed positive likelihood ratios of 4.3 and 10.9 for the identification of mollusc allergy. Patients with mollusc allergy reacted more frequently to tropomyosin in immunoblots than did patients without it (93% vs 35%, respectively, P = 0.004). Reactivity to proteins other than tropomyosin (n = 14) was not different between the two groups. Among patients with crustacean anaphylaxis, patients with mollusc allergy and mollusc tolerance show a different pattern of sensitization, something that may help identify them.


Asunto(s)
Crustáceos/inmunología , Moluscos/inmunología , Hipersensibilidad a los Mariscos/inmunología , Adolescente , Adulto , Anciano , Alérgenos/inmunología , Anafilaxia/diagnóstico , Anafilaxia/inmunología , Animales , Niño , Preescolar , Femenino , Humanos , Inmunización , Inmunoglobulina E/inmunología , Masculino , Persona de Mediana Edad , Hipersensibilidad a los Mariscos/diagnóstico , Pruebas Cutáneas , Adulto Joven
13.
Clin Exp Allergy ; 44(8): 1061-8, 2014 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-24750173

RESUMEN

BACKGROUND: The carbohydrate alpha-gal epitope is present in many animal proteins, including those of red meat and animal immunoglobulins, such as cat IgA. Systemic anaphylaxis to the alpha-gal epitope has recently been described. OBJECTIVE: To investigate and compare the prevalence of alpha-gal-specific (s)IgE and its associated factors in the general adult population from two separated (Northern and Southern) European regions (Denmark and Spain, respectively). METHODS: Cross-sectional study of 2297 and 444 randomly selected adults from 11 municipalities in Denmark and one in Spain. Alpha-gal sIgE was assessed by ImmunoCAP to bovine thyroglobulin. Additional assessments included a panel of skin prick test (SPT) to common aeroallergens and epidemiological factors, including the history of tick bites in the Danish series. RESULTS: The prevalence of positive (≥ 0.1 kUA /L) sIgE to alpha-gal was 5.5% and 8.1% in the Danish and Spanish series, respectively. The prevalence of sIgE ≥ 0.35 kUA /L was 1.8% and 2.2% in Denmark and Spain, respectively. Alpha-gal sIgE positivity was associated with pet ownership in both series and, particularly, cat ownership (data available in the Danish series). Alpha-gal sIgE positivity was associated with atopy (SPT positivity) in both series, although it was not associated with SPT positivity to cat or dog dander. Alpha-gal sIgE positivity was strongly associated with a history of tick bites. CONCLUSIONS AND CLINICAL RELEVANCE: The prevalence of alpha-gal sIgE antibodies in these general adult European populations is similarly low. The presence of alpha-gal sIgE antibodies is associated with a history of tick bites, atopy, and cat ownership.


Asunto(s)
Hipersensibilidad/epidemiología , Hipersensibilidad/etiología , Inmunoglobulina E/inmunología , Vigilancia de la Población , Trisacáridos/inmunología , Animales , Especificidad de Anticuerpos/inmunología , Gatos , Estudios Transversales , Dinamarca/epidemiología , Humanos , Inmunoglobulina E/sangre , Prevalencia , Estudios Seroepidemiológicos , España/epidemiología , Encuestas y Cuestionarios , Mordeduras de Garrapatas
14.
Eur J Nutr ; 53(2): 575-82, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-23896999

RESUMEN

PURPOSE: The combination of resveratrol + conjugated linoleic acid (RSV + CLA) did not show the body fat-lowering effect exhibited by these molecules when administered separately. This study aimed to find metabolic explanations for this situation in an experimental model of diet-induced obesity. METHODS: Thirty-six male Wistar rats were divided into four groups: rats treated with saline (control), resveratrol (RSV), conjugated linoleic acid (CLA) and a combination of these molecules (RSV + CLA). RESULTS: Rats treated with RSV + CLA did not show the reduction in heparin-releasable lipoprotein lipase (HR-LPL) and fatty acid synthase activities observed in RSV group or the increased HSL expression found in RSV and CLA groups. These animals showed reduced sirtuin 1 expression and CLA isomer amounts in adipose tissue. Finally, intracellular Ca(2+) concentration was increased. CONCLUSION: The attenuation of the effects induced in adipose tissue triacylglycerol metabolism by RSV and CLA separately, such as the decrease in lipogenesis and fatty acid uptake and the increase in lipolysis, contributes to explain the lack of body fat-lowering effect of the combination RSV + CLA.


Asunto(s)
Tejido Adiposo/efectos de los fármacos , Tejido Adiposo/metabolismo , Ácidos Linoleicos Conjugados/administración & dosificación , Estilbenos/administración & dosificación , Triglicéridos/metabolismo , Tejido Adiposo/química , Animales , Calcio/análisis , Interacciones Farmacológicas , Ácido Graso Sintasas/metabolismo , Expresión Génica , Ácidos Linoleicos Conjugados/análisis , Lipasa/genética , Lipasa/metabolismo , Lipoproteína Lipasa/genética , Lipoproteína Lipasa/metabolismo , Masculino , Ratas , Ratas Wistar , Resveratrol , Sirtuina 1/análisis , Sirtuina 1/genética , Estilbenos/análisis , Estilbenos/metabolismo
15.
Cir Pediatr ; 27(1): 21-5, 2014 Jan.
Artículo en Español | MEDLINE | ID: mdl-24783642

RESUMEN

The external ear is a location with high risk of keloid scar formation. Its incidence is growing since general use of piercings and performance of plastic surgery of the external ear. The external ear keloid can be a devasting process for adolescent population which is worried about their appearance. Our aim is to attract attention about the risk of keloid scars of the external ear, reviewing our experience. After dismissing radiotherapy, corticoid infiltration and surgical removal are the most used options, with a high recurrence risk. We have reviewed traumatic, surgical and piercing wounds of the external ear, with a subsequent keloid formation treated in our outpatient clinic, collecting data about wound etiology, treatment and results. During the last 10 years we have found 11 keloid scars, 2 of them improved with topical corticosteroid. Treatment has been surgical in 9 cases, 4 of them with skin graft: 5 recovered and 4 recurred; 2 of them were reoperated. 2 of them were treated with intralesional corticosteroid solely, one recovered and the other one had improved. Treatment management of keloid scars is complex and there isn't a procedure with superior results than the others. Risk of complication must be explained within adolescent population.


Asunto(s)
Oído Externo/patología , Queloide/terapia , Procedimientos de Cirugía Plástica/métodos , Adolescente , Niño , Preescolar , Femenino , Glucocorticoides/administración & dosificación , Glucocorticoides/uso terapéutico , Humanos , Lactante , Queloide/etiología , Queloide/patología , Masculino , Recurrencia , Reoperación , Resultado del Tratamiento
16.
Artículo en Inglés | MEDLINE | ID: mdl-23653971

RESUMEN

BACKGROUND: Increased tryptase concentrations are a risk marker for the severity of reactions to Hymenoptera stings or venom immunotherapy OBJECTIVE: To investigate serum tryptase concentrations in beekeepers with and without Hymenoptera venom allergy (HVA). METHODS: Serum tryptase concentrations were measured in adult patients with HVA (n = 91, 37 of whom were beekeepers), beekeepers without HVA (n = 152), and control individuals from the general adult population (n = 246). RESULTS: Multivariate analyses revealed that serum tryptase levels were positively associated with beekeeping activities (P < .001) and HVA (P < .001). Tryptase levels were also positively associated with age (P < .001) and male'sex (P = .02), and negatively associated with alcoho consumption (P = .002). CONCLUSIONS: Beekeeping and HVA are independently associated with increased concentrations of serum tryptase.


Asunto(s)
Venenos de Artrópodos/inmunología , Himenópteros/inmunología , Hipersensibilidad/sangre , Hipersensibilidad/inmunología , Triptasas/sangre , Alérgenos/inmunología , Animales , Apicultura , Femenino , Humanos , Inmunoglobulina E/sangre , Inmunoglobulina E/inmunología , Masculino , Factores de Riesgo
17.
Scand J Public Health ; 41(2): 142-9, 2013 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-23282939

RESUMEN

AIMS: To investigate whether there is an association between job stress, lipid profile and dyslipidemia diagnosis. METHODS: This study used a questionnaire to evaluate job stress and lifestyle variables in 91,593 workers undergoing periodic checkups. Serum lipid levels were measured in all cases. RESULTS: The prevalence of job stress was 8.7% (95% CI, 8.5-8.8%). In bivariate analyses, job stress was significantly associated with previous dyslipidemia diagnosis (p < 0.001), lipid-lowering therapy (p < 0.001), and altered total-cholesterol (p = 0.001), HDL-cholesterol (p < 0.001) and LDL-cholesterol levels (p = 0.025). After adjusting for potential confounding variables, job stress was still associated with current dyslipidemia diagnosis (OR = 1.10; 95% CI, 1.04-1.17), high LDL-cholesterol (OR = 1.14; 95% CI, 1.05-1.23), low HDL-cholesterol (OR 1.08; 95% CI, 1.01-1.15), high total cholesterol/HDL-cholesterol ratio (OR 1.13; 95% CI, 1.05-1.23) and high LDL-cholesterol/HDL-cholesterol ratio (OR 1.11; 95% CI, 1.04-1.19). CONCLUSION: These results support the hypothesis of an association between job stress and lipid disturbances.


Asunto(s)
Dislipidemias/diagnóstico , Empleo/psicología , Estrés Psicológico/epidemiología , Adulto , Estudios Transversales , Femenino , Humanos , Estilo de Vida , Masculino , Persona de Mediana Edad , Estrés Psicológico/sangre , Encuestas y Cuestionarios
18.
Clin Oncol (R Coll Radiol) ; 35(10): 665-672, 2023 10.
Artículo en Inglés | MEDLINE | ID: mdl-37487914

RESUMEN

AIMS: In the pivotal RECOURSE trial, trifluridine/tipiracil improved survival outcomes in refractory metastatic colorectal cancer (mCRC), while demonstrating an acceptable toxicity profile. Routine clinical practice evidence is important to support the ongoing value of recently approved medicines. Our objective was to assess the utilisation patterns and real-world effectiveness of trifluridine/tipiracil in previously treated mCRC patients. MATERIALS AND METHODS: This was a retrospective observational study including consecutive patients who started trifluridine/tipiracil between 1 April 2018 and 30 September 2019 in the medical oncology departments of three major public hospitals in Portugal. The primary outcome measure was overall survival. Associations between overall survival and patient and tumour characteristics were assessed using multivariate Cox regression analyses. RESULTS: In total, 111 patients were included in the study, with a mean age of 64 years. From these, 45.9% received two prior lines of treatment, 47.8% had three or more previous lines of treatment and 83.6% had Eastern Cooperative Oncology Group (ECOG) performance status 0-1 at baseline. The median duration of trifluridine/tipiracil treatment was 3.7 cycles (95% confidence interval 3.4-4.1). Most patients (80.4%) remained on their planned dose throughout the trifluridine/tipiracil treatment period, fulfilling 100% relative dose intensity. The median overall survival in the total study cohort was 7.9 months (95% confidence interval 6.4-9.8) and the median progression-free survival was 3.4 months (95% confidence interval 3.2-3.9). The median overall survival was significantly higher in patients with a normal serum lactate dehydrogenase (LDH) level (median overall survival 11.2 months for [135, 205] IU/l LDH [95% confidence interval 8.2-NR] and 13.6 months for [205, 251] IU/l LDH [95% confidence interval 8.2-NR]) and in better fitted (ECOG = 0-1) patients (median overall survival 8.0 months; 95% confidence interval 6.7-10.0). The median time to worsening performance status was 6.2 months (95% confidence interval 5.0-8.0). Treatment discontinuation due to adverse events was low (3.1%). CONCLUSION: Our study confirms the effectiveness of trifluridine/tipiracil in real-life mCRC patients. Overall survival and progression-free survival outcomes are consistent with the efficacy profile reported in the earlier randomised RECOURSE clinical trial. Like other real-world studies, we found no additional safety concerns in the use of trifluridine/tipiracil.


Asunto(s)
Neoplasias del Colon , Neoplasias Colorrectales , Neoplasias del Recto , Humanos , Persona de Mediana Edad , Uracilo/uso terapéutico , Neoplasias Colorrectales/tratamiento farmacológico , Trifluridina/uso terapéutico , Neoplasias del Colon/tratamiento farmacológico , Neoplasias del Recto/tratamiento farmacológico , Combinación de Medicamentos , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico
19.
Ann Oncol ; 23(3): 547-555, 2012 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-21896541

RESUMEN

BACKGROUND: Despite current trend of targeted therapy development, cytotoxic agents are a mainstay of treatment of patients with breast cancer. We reviewed recent advances in cytotoxic therapy for patients with metastatic breast cancer (MBC). MATERIALS AND METHODS: Medline searches were conducted for English language studies using the term 'MBC' and 'cytotoxic drugs'. The data search was restricted to the period 2000-2011. RESULTS: Several novel cytotoxic compounds, all microtubule inhibitors, have been approved for clinical use in MBC: (i) nab-paclitaxel, reported to improve tumour response and decrease hypersensitivity reactions in comparison with other taxanes; (ii) ixabepilone, shown to have clinical benefit in taxane- and anthracycline-resistant disease and (iii) eribulin, shown to improve overall survival in heavily pre-treated patients, when compared with best available standard treatment. Agents, such as larotaxel, vinflunine, trabectidin and formulations, including cationic liposomal paclitaxel or paclitaxel poliglumex, are currently under evaluation in phase II/III trials. CONCLUSION: Toxicity and chemotherapy resistance are still major limitations in the treatment of patients with MBC. Further research into new cytotoxic compounds is needed in order to maximise benefit, whilst minimising toxicity.


Asunto(s)
Antineoplásicos/uso terapéutico , Neoplasias de la Mama/tratamiento farmacológico , Citotoxinas/uso terapéutico , Ensayos Clínicos como Asunto , Femenino , Humanos
20.
Clin Exp Allergy ; 42(8): 1237-45, 2012 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-22805471

RESUMEN

BACKGROUND: Obesity and risk of asthma are linked. Different distributions of adiposity, such as visceral, subcutaneous or ectopic adiposity, may affect asthma risk differently. OBJECTIVE: To explore the association of different adiposity types with self-reported asthma, bronchial inflammation and lung function, accounting for possible effect modifiers, such as atopy and gender. METHODS: In a general population sample of 3471 persons aged 19-72, visceral adipose tissue (VAT) and subcutaneous adipose tissue (SAT) were measured by ultrasound, and fat percentage by bio-impedance. Body mass index, waist circumference, waist-to-hip ratio (WHR), bronchial inflammation as fractional expiratory nitric oxide (FeNO), lung function [FEV(1) and forced vital capacity (FVC)], and atopy (specific IgE) were measured. RESULTS: All adiposity measures were associated with a higher risk of asthma. The risk estimates (odds ratios, OR, with 95% confidence interval, CI) of current asthma were of similar magnitude for all six adiposity measures ranging between 1.17, CI = 0.98-1.40 (SAT) and 1.51, CI = 1.17-1.95 (WHR). The adiposity-asthma associations were significantly stronger in non-atopics than in atopics. In non-atopics the risk estimates of current asthma ranged between 1.35 CI = 1.08-1.72 and 1.82 CI = 1.34-2.46 for SAT and WHR respectively. Consistent results were obtained using dichothomized adiposity measures (obese vs. non-obsese). The FVC and FEV(1) decreased significantly with increasing adiposity in both atopics and non-atopics, e.g. FVC decreased between 36 mL (CI = 10, 62 mL) and 155 mL (CI = 124, 186 mL) for one unit (standard error) increase of SAT and VAT respectively. Adiposity measures were not associated with atopy and not consistently associated with FeNO levels. CONCLUSIONS AND CLINICAL RELEVANCE: The effect of adiposity on asthma was mainly seen in non-atopics and did not appear to depend on the distribution of adiposity as reflected by the adiposity measures used in the present study. Increasing adiposity was associated with lower lung function independent of atopic status.


Asunto(s)
Adiposidad , Asma/complicaciones , Asma/epidemiología , Obesidad/complicaciones , Adulto , Estudios Transversales , Femenino , Humanos , Masculino , Persona de Mediana Edad , Óxido Nítrico/metabolismo , Pruebas de Función Respiratoria , Medición de Riesgo , Factores de Riesgo , Encuestas y Cuestionarios
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