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1.
J Clin Med ; 12(24)2023 Dec 18.
Artículo en Inglés | MEDLINE | ID: mdl-38137816

RESUMEN

This review article describes in depth the current usefulness of transesophageal echocardiography in patients who undergo transcatheter aortic valve replacement. Pre-intervention, 3D-transesophageal echocardiography allows us to accurately evaluate the aortic valve morphology and to measure the valve annulus, helping us to choose the appropriate size of the prosthesis, especially useful in cases where the computed tomography is not of adequate quality. Although it is not currently used routinely during the intervention, it remains essential in those cases of greater complexity, such as for patients with greater calcification and bicuspid valve, mechanical mitral prosthesis, and "valve in valve" procedures. Three-dimensional transesophageal echocardiography is the best technique to detect and quantify paravalvular regurgitation, a fundamental aspect to decide whether immediate valve postdilation is needed. It also allows to detect early any immediate complications such as cardiac tamponade, aortic hematoma or dissection, migration of the prosthesis, malfunction of the prosthetic leaflets, or the appearance of segmental contractility disorders due to compromise of the coronary arteries ostium. Transesophageal echocardiography is also very useful in follow-up, to check the proper functioning of the prosthesis and to rule out complications such as thrombosis of the leaflets, endocarditis, or prosthetic degeneration.

2.
Nutr Rev ; 79(7): 743-757, 2021 06 04.
Artículo en Inglés | MEDLINE | ID: mdl-33316068

RESUMEN

Milk and dairy (M&D) is a longstanding human food with widespread use. Many studies showed the preventive capacity of M&D in several human health disorders, but its utility in others is under discussion. Aging has been associated to elderly cognitive decline including dementia-Alzheimer syndrome (Dem-AD). The absence of a therapy to impede or postpone Dem-AD determines the need for its prevention, including nutritional factors. To evaluate the preventive capacity of M&D consumption in elderly Dem-AD we performed a systematic review in the main biomedical databases and information resources, but we present this study as a narrative review to discuss better the complexity of this subject. The elderly Dem-AD has a long pre-symptomatic period and the M&D intake has a widespread use. These determinants and the quality flaws of published studies impeach us to answer whether M&D consumption is preventive for Dem-AD. Moreover, two long Japanese cohorts suggest that M&D intake could prevent Dem-AD. Prospective cohorts beginning in midlife (or early life) could answer this question in the future.


Asunto(s)
Enfermedad de Alzheimer , Cognición , Productos Lácteos , Demencia , Dieta , Leche , Anciano , Enfermedad de Alzheimer/epidemiología , Enfermedad de Alzheimer/prevención & control , Animales , Cognición/fisiología , Estudios de Cohortes , Productos Lácteos/estadística & datos numéricos , Demencia/prevención & control , Dieta/estadística & datos numéricos , Humanos , Leche/estadística & datos numéricos
3.
Arch. bronconeumol. (Ed. impr.) ; 56(12): 801-805, dic. 2020. tab
Artículo en Español | IBECS | ID: ibc-199074

RESUMEN

INTRODUCCIÓN: La etiología del cáncer de pulmón es multifactorial. La exposición al humo del tabaco y el papel que desempeñan los compuestos carcinógenos presentes en él explicarían la frecuente asociación de cáncer de pulmón con enfermedad pulmonar obstructiva crónica (EPOC), enfermedad igualmente muy ligada al tabaquismo. En ambas entidades se desencadena una inflamación mantenida debida al incremento del estrés oxidativo (por ejemplo, peroxidación lipídica), que genera sustancias de bajo peso molecular llamadas compuestos orgánicos volátiles (VOC), que son excretadas durante la respiración. La metabolómica de los VOC ofrece una medida indirecta del grado de estrés oxidativo. OBJETIVO: El objetivo de este trabajo es determinar la influencia relativa de la EPOC en el perfil de los VOC en pacientes con cáncer de pulmón no microcítico (CPNM), estudiando previamente la posible variación de los VOC en función de la histología. PACIENTES Y MÉTODOS: Se analizó el aire exhalado de 107 pacientes de CPNM, clasificados en 2 grupos: CPNM con EPOC y CPNM sin EPOC. La muestra de aire exhalado se recogió mediante BioVOC®) y se traspasó a tubos de desorción para su posterior análisis por cromatografía de gases y espectrometría de masas. Los VOC analizados fueron aldehídos lineales y ácidos carboxílicos. RESULTADOS Y CONCLUSIONES: No se han encontrado diferencias estadísticamente significativas de los VOC con respecto a la histología. Los pacientes con CPNM con EPOC presentan 1,7 (1,1-2,7) veces más probabilidad de detección de ácido propanoico (IC 95%: 1,22-6,2) que los pacientes CPNM sin EPOC (p = 0,013)


INTRODUCTION: The etiology of lung cancer is multifactorial. Exposure to tobacco smoke and the role played by the carcinogenic compounds that it contains would explain the common association between lung cancer and chronic obstructive pulmonary disease (COPD), a disease which is very much linked to tobacco use. In both diseases, sustained inflammation is caused by increased oxidative stress (for example, lipid peroxidation). This generates low molecular weight substances called volatile organic compounds (VOC) that are excreted during breathing. VOC metabolomics provides an indirect measure of oxidative stress. OBJECTIVE: The aim of this study was to establish the relative influence of COPD on the VOC profile in patients with non-small cell lung cancer (NSCLC), by first studying the possible variation of VOC associated with lung cancer histology. PATIENTS AND METHODS: Exhaled air was tested in 107 NSCLC patients, who were divided into 2 groups: NSCLC with COPD and non-COPD with NSCLC. The exhaled air sample was obtained with the BIOVOC® sampler, and transferred to desorption tubes for later analysis by thermal desorption-gas chromatography-mass spectrometry. The VOC analysis showed lineal aldehydes and carboxylic acids. RESULTS AND CONCLUSIONS: No statistically significant differences were found in VOC associated with histology. NSCLC and COPD patients present a 1.7-fold (1.1-2.7) probability of detection of propionic acid (95% CI: 1.22- 6.2) than patients without COPD or NSCLC (P = 0.013)


Asunto(s)
Humanos , Masculino , Femenino , Persona de Mediana Edad , Anciano , Anciano de 80 o más Años , Enfermedad Pulmonar Obstructiva Crónica/metabolismo , Carcinoma de Pulmón de Células no Pequeñas/metabolismo , Neoplasias Pulmonares/metabolismo , Compuestos Orgánicos Volátiles/análisis , Compuestos Orgánicos Volátiles/metabolismo , Enfermedad Pulmonar Obstructiva Crónica/patología , Carcinoma de Pulmón de Células no Pequeñas/patología , Neoplasias Pulmonares/patología , Enfermedad Pulmonar Obstructiva Crónica/etiología , Carcinoma de Pulmón de Células no Pequeñas/etiología , Neoplasias Pulmonares/etiología , Estudios Transversales , Factores de Riesgo , Estadísticas no Paramétricas , Compuestos Orgánicos Volátiles/efectos adversos , Estrés Oxidativo , Metabolómica , Cromatografía de Gases y Espectrometría de Masas
4.
Blood Adv ; 4(10): 2163-2171, 2020 05 26.
Artículo en Inglés | MEDLINE | ID: mdl-32433744

RESUMEN

Lenalidomide is an immunomodulatory drug approved for maintenance treatment in newly diagnosed multiple myeloma, and it has been shown to improve progression-free survival (PFS) and, in several studies, overall survival. Nevertheless, the impact of prolonged treatment with lenalidomide on the kinetics of minimal residual disease (MRD) and its prognostic impact have not been studied in depth. To obtain better knowledge in this regard, we retrospectively analyzed 139 patients who received lenalidomide maintenance in real-world clinical practice and whose MRD levels were observed during the treatment period by multiparametric flow cytometry or next-generation sequencing with a sensitivity of at least 10-4. Lenalidomide maintenance correlated with an increased depth of the disease response, with 38.1% of patients achieving maximal response during maintenance. Moreover, 34.3% of patients who were MRD positive after induction treatment achieved MRD-negative status during maintenance and ultimately had improved PFS. Sequential MRD assessments identified patients with progressively decreasing MRD levels who also had better PFS outcomes, compared with patients not showing a decreasing pattern of MRD. These results support the role of maintenance therapy, not only to sustain, but also to increase the depth of disease response with a PFS benefit. In addition, MRD monitoring during maintenance identifies patients with better prognosis and may help in their clinical management.


Asunto(s)
Mieloma Múltiple , Humanos , Lenalidomida , Mieloma Múltiple/tratamiento farmacológico , Neoplasia Residual , Estudios Retrospectivos , Resultado del Tratamiento
5.
Nutrients ; 12(2)2020 Feb 23.
Artículo en Inglés | MEDLINE | ID: mdl-32102188

RESUMEN

We are currently experiencing a vitamin D (VITD) deficiency pandemic across the world. Athletes have the same predisposition to low levels of vitamin D, the majority of its concentrations being below 20 ng/mL in a wide range of sports, especially in the winter months. Vitamin D is important in bone health, but recent research also points out its essential role in extraskeletal functions, including skeletal muscle growth, immune and cardiopulmonary functions and inflammatory modulation, which influence athletic performance. Vitamin D can also interact with extraskeletal tissues to modulate injury recovery and also influence the risk of infection. The data presented in this paper has triggered investigations in relation to the importance of maintaining adequate levels of vitamin D and to the possible positive influence supplementation has on immune and musculoskeletal functions in athletes, benefiting their performance and preventing future injuries. The objective of this review is to describe the latest research conducted on the epidemiology of vitamin D deficiency and its effects on sports performance and musculoskeletal health.


Asunto(s)
Atletas , Rendimiento Atlético/fisiología , Vitamina D/farmacología , Sistema Cardiovascular/fisiopatología , Suplementos Dietéticos , Humanos , Vitamina D/biosíntesis , Vitamina D/sangre , Vitamina D/metabolismo , Deficiencia de Vitamina D/epidemiología
6.
Arch Bronconeumol ; 56(12): 801-805, 2020 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-35373775

RESUMEN

INTRODUCTION: The etiology of lung cancer is multifactorial. Exposure to tobacco smoke and the role played by the carcinogenic compounds that it contains would explain the common association between lung cancer and chronic obstructive pulmonary disease (COPD), which is closely linked to tobacco use. In both diseases, sustained inflammation is caused by increased oxidative stress (for example, lipid peroxidation). This generates low molecular weight substances called volatile organic compounds (VOC) that are excreted during breathing. VOC metabolomics provides an indirect measure of oxidative stress. OBJECTIVE: The aim of this study was to establish the relative influence of COPD on the VOC profile in patients with non-small cell lung cancer (NSCLC), by first studying the possible variation of VOC associated with lung cancer histology. PATIENTS AND METHODS: Exhaled air was tested in 107 NSCLC patients, who were divided into 2 groups: NSCLC with COPD and non-COPD with NSCLC. The exhaled air sample was obtained with the BIOVOC® sampler, and transferred to desorption tubes for later analysis by thermal desorption-gas chromatography-mass spectrometry. The VOC analysis showed lineal aldehydes and carboxylic acids. RESULTS AND CONCLUSIONS: No statistically significant differences were found in VOC associated with histology. NSCLC and COPD patients present a 1.7-fold (1.1-2.7) greater probability of detection of propionic acid (95% CI: 1.22-6.2) than patients without COPD or NSCLC (p = 0.013).

8.
Nutrients ; 11(10)2019 Oct 21.
Artículo en Inglés | MEDLINE | ID: mdl-31640222

RESUMEN

Cardiovascular disease is linked to high serum low density lipoprotein (LDL)-cholesterol levels. Cardiovascular risk may be indirectly influenced by genetic load. Serum LDL-cholesterol levels may be reduced by the consumption of food enriched with plant sterols (PS). The aim was to test a plant sterol treatment on cholesterol levels according to different genetic polymorphisms. A pilot interventional trial was performed in 26 children (n = 16 girls, n = 10 boys). Seven hundred milliliters/day of commercial skimmed milk with added plant sterols delivering 2.2 g plant sterols were ingested for three weeks. Blood draws were performed at the baseline and end of the study. Significant modifications of non-high density lipoprotein (HDL)-cholesterol (p = 0.010; p = 0.013) and LDL-cholesterol (p = 0.004; p = 0.013) levels appeared in the genes LIPC C-514T and PPAR-α L162V carriers. No statistically significant differences were observed for other genes. LIPC C-514T and PPAR-alpha L162V carriers could benefit from a plant sterol supplement to ameliorate hypercholesterolemia.


Asunto(s)
Colesterol/sangre , Hipercolesterolemia/tratamiento farmacológico , Hipercolesterolemia/genética , Lipasa/genética , PPAR alfa/genética , Fitosteroles/administración & dosificación , Animales , Enfermedades Cardiovasculares/genética , Niño , HDL-Colesterol/sangre , LDL-Colesterol/sangre , Femenino , Alimentos Fortificados , Predisposición Genética a la Enfermedad , Humanos , Hipercolesterolemia/sangre , Masculino , Leche/química , Proyectos Piloto , Polimorfismo Genético/genética , España
9.
Rev. mex. trastor. aliment ; 10(1): 10-21, Jan.-Jun. 2019. tab
Artículo en Español | LILACS-Express | LILACS | ID: biblio-1004313

RESUMEN

Resumen Los objetivos de este estudio fueron: 1. Comparar la presencia de sobrepeso y obesidad en adolescentes de Argentina vs. España, 2. Comparar la personalidad según diagnóstico nutricional (DN) y lugar de residencia (LR), y 3. Identificar la presencia de riesgo psicopatológico (RP). Participaron 272 adolescentes, hombres y mujeres, de 11-16 años de edad, quienes completaron el Cuestionario de Personalidad para Niños de Eysenck (EPQ-J) y, para calcular el índice de masa corporal, fueron recabadas medidas de talla y peso. Presentaron sobrepeso u obesidad 39% de los adolescentes españoles y 43% de los argentinos, con quienes se conformaron dos grupos clínicos, uno por país; mientras que ambos grupos control estuvieron constituidos por los participantes normopeso. La combinación de las variables DN y LR no arrojó diferencias significativas en cuanto a las dimensiones de personalidad. Sin embargo, ambos grupos clínicos presentaron mayor neuroticismo (NE) que sus pares control. Respecto al LR, los adolescentes argentinos registraron mayor NE y dureza emocional (4% de alto riesgo) vs.3% de alto riesgo por NE en los españoles. Los datos obtenidos no permitieron establecer un perfil psicopatológico del adolescente con sobrepeso u obesidad, dado que prevaleció la influencia del país de procedencia.


Abstract The objectives of this study were: 1. To compare the presence of overweight and obesity in adolescents from Argentina vs. Spain, 2. To compare personality according to nutritional diagnosis (ND) and place of residence (PR), and 3. To identify the presence of psychopathological risk (PR). A total of 272 adolescents, men and women from 11 to 16 years completed the Personality Questionnaire for Children of Eysenck (EPQ-J) and body mass index was calculated through height and weight measures. The 39% of the Spanish adolescents and 43% of the Argentinians presented overweight or obesity, two clinical groups were formed, one per country and both control groups were constituted by the normal weight participants. The combination of the variables ND and PR did not show significant differences in terms of personality dimensions. However, both clinical groups presented greater neuroticism (NE) than their control peers. Regarding the PR, the Argentine adolescents registered higher NE and emotional hardness (4% of high risk) than 3% of high risk of NE in the Spanish. The data obtained did not allow to establish a psychopathological profile of the overweight or obese adolescent, this is because the influence of the country of origin prevailed.

10.
Ann Pediatr Cardiol ; 12(2): 83-89, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31143031

RESUMEN

BACKGROUND: Dyslipidemias have increased during the last decades in children. AIM: The objective of this study was to analyze the influence of different polymorphisms in plasma triglyceride levels of children following a dietary treatment with plant sterols. DESIGN: A randomized, double-blind, crossover, controlled clinical trial was carried out in 26 children (16 women). MATERIALS AND METHODS: Commercial milk, with 2.24 g sterols, was ingested daily during 3 weeks , and the same amount of kimmed milk without sterols, during the 3 week placebo phase. Both phases were separated by a washout period of 2 weeks. At the beginning and end of each phase, blood draws were performed. RESULTS: Apolipoprotein A5 Ser19Trp (P = 0.002), peroxisome proliferator-activated receptor-alpha L162V (P = 0.003), APOE APOE2/3/4 (P = 0.012), and APOE APOE2,3,4 (P = 0.025) show statistically significant differences between their haplotypes in plasma triglyceride levels. Other genes did not show statistically significant differences. CONCLUSIONS: Further studies are needed to establish which genotype combinations would be the most protective against hypertriglyceridemia.

11.
Gene ; 699: 88-93, 2019 May 30.
Artículo en Inglés | MEDLINE | ID: mdl-30858138

RESUMEN

The new technologies for data analysis, such as decision tree learning, may help to predict the risk of developing diseases. The aim of the present work was to develop a pilot decision tree learning to predict overweight/obesity based on the combination of six single nucleotide polymorphisms (SNP) located in feeding-associated genes. Genotype study was performed in 151 healthy individuals, who were anonymized and randomly selected from the TALAVERA study. The decision tree analysis was performed using the R package rpart. The learning process was stopped when 15 or less observation was found in a node. The participant group consisted of 78 men and 73 women, who 100 individuals showed body mass index (BMI) ≥ 25 kg/m2 and 51 BMI < 25 kg/m2. Chi-square analysis revealed that individuals with BMI ≥ 25 kg/m2 showed higher frequency of the allelic variation Ala67Ala in AgRP rs5030980 with respect to those with BMI <25 kg/m2. However, the variant Thr67Ala in AgRP rs5030980 was the most frequently found in individuals with BMI <25 kg/m2. There were no statistical differences in the other analyzed SNPs. Decision tree learning revealed that carriers of the allelic variants AgRP (rs5030980) Ala67Ala, ADRB2 (rs1042714) Gln27Glu or Glu27Glu, INSIG2 (rs7566605) 73 + 9802 with CC or GG genotypes and PPARG (rs1801282) with the allelic variants of Ala12Ala or Pro12Pro, will most likely develop overweight/obesity (BMI ≥ 25 kg/m2). Moreover, the decision tree learning indicated that age and gender may change the developed three decision learning associated with overweight/obesity development. The present work should be considered as a pilot demonstrative study to reinforce the broad field of application of new data analysis technologies, such as decision tree learning, as useful tools for diseases prediction. This technology may achieve a potential applicability in the design of early strategies to prevent overweight/obesity.


Asunto(s)
Obesidad/genética , Sobrepeso/genética , Polimorfismo de Nucleótido Simple/genética , Alelos , Índice de Masa Corporal , Árboles de Decisión , Femenino , Genotipo , Humanos , Péptidos y Proteínas de Señalización Intracelular/genética , Masculino , Persona de Mediana Edad , PPAR gamma/genética , Proyectos Piloto , Receptores Adrenérgicos beta 2/genética
12.
Kaohsiung J Med Sci ; 34(8): 423-427, 2018 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-30041759

RESUMEN

Vitamin D is a fat soluble vitamin that plays a role in calcium and phosphorus homeostasis. Recently, extensive research on its extraskeletal actions has linked vitamin D deficiency to an increased risk of infection, diabetes mellitus types 1 and 2, cardiovascular disease, obesity, asthma, inflammatory bowel disease, colon, breast, prostate and ovarian cancer and some neurological diseases. There are various mechanisms by which vitamin D influences the natural history of cancer. These include the role of vitamin D in the induction of apoptosis, stimulation of cell differentiation, anti-inflammatory and antiproliferative effects and inhibition of angiogenesis, invasion and metastasis. The aim of this review is to clarify the true role of vitamin D in the onset of breast cancer and evolution of the disease after treatment. A further aim is to suggest new research directions to identify indications and requirements for vitamin D supplementation in patients with breast cancer.


Asunto(s)
Neoplasias de la Mama/metabolismo , Vitamina D/metabolismo , Apoptosis/fisiología , Diferenciación Celular/fisiología , Femenino , Humanos , Vitamina D/análogos & derivados
13.
Diseases ; 6(2)2018 Apr 03.
Artículo en Inglés | MEDLINE | ID: mdl-29614023

RESUMEN

Raised serum cholesterol concentration is a well-established risk factor in cardiovascular disease. In addition, genetic load may have an indirect influence on cardiovascular risk. Plant-based sterol-supplemented foods are recommended to help reduce the serum low-density lipoprotein cholesterol level. The objective was to analyse the influence of different polymorphisms in hypercholesterolemia patients following a dietary treatment with plant sterols. A randomised double-blind cross-over controlled clinical trial was carried out in 45 people (25 women). Commercial milk, containing 2.24 g of sterols, was ingested daily during a 3-week period, and then the same amount of skim milk, without sterols, was consumed daily during the 3-week placebo phase. Both phases were separated by a washout period of 2 weeks. At the beginning and end of each phase, blood draws were performed. Genes LIPC C-514T and APOA5 C56G are Ser19Trp carriers and greatly benefit from sterol intake in the diet. LIPC C-514T TT homozygous carriers had lower low-density lipoprotein cholesterol (LDL-c) levels than CC homozygote and CT heterozygote carriers after the ingestion of plant sterols (p = 0.001). These two genes also showed statistically significant changes in total cholesterol levels (p = 0.025; p = 0.005), and no significant changes in high-density lipoprotein (HDL) cholesterol levels (p = 0.032; p = 0.003), respectively. No statistically significant differences were observed for other genes. Further studies are needed to establish which genotype combinations would be the most protective against hypercholesterolemia.

14.
Med. oral patol. oral cir. bucal (Internet) ; 22(5): e601-e608, sept. 2017. ilus, tab, graf
Artículo en Inglés | IBECS | ID: ibc-166655

RESUMEN

Background: Thrombotic disorders remain a leading cause of death in the Western World. For decades, vitamin K antagonists used in the prevention of this pathology, such as warfarin or sintrom, were the only oral agents available for long-term anticoagulation, in spite of their disadvantages. Material and Methods: An electronic database search was carried out on MedLine and The Cochrane Library Plus, without restrictions on the type of study nor dates, in English and Spanish. Abstracts were reviewed, and complete articles if necessary, considering all articles that included recommendations on DOACs and oral surgery. Results: In recent years, the so-called "new oral anticoagulants" have been introduced in clinical practice to treat those patients whose medical conditions require long-term anticoagulant treatment, replacing traditional oral anticoagulants. Conclusions: The new oral anticoagulants represent new therapeutic options, with a number of advantages such as poor interaction with food, minor drug interactions, and do not require periodic dose adjustments or routine controls. The purpose of this review is to establish an update on the new oral anticoagulants: Dabigatran, Rivarozaban, Apixaban and Edoxaban (AU)


No disponible


Asunto(s)
Humanos , Anticoagulantes/uso terapéutico , Procedimientos Quirúrgicos Orales/métodos , Pérdida de Sangre Quirúrgica/prevención & control , Dabigatrán/uso terapéutico , Rivaroxabán/uso terapéutico , Aprobación de Drogas , Interacciones Farmacológicas
15.
Arch. bronconeumol. (Ed. impr.) ; 53(5): 251-256, mayo 2017. tab, graf
Artículo en Español | IBECS | ID: ibc-162361

RESUMEN

Introducción: Un factor de riesgo importante para el desarrollo de la enfermedad pulmonar obstructiva crónica (EPOC) es el humo del tabaco, que genera estrés oxidativo en las vías respiratorias, dando lugar a la producción de compuestos orgánicos volátiles (VOC). El objetivo del trabajo es su identificación en el aire exhalado y su posible utilidad como biomarcadores de la enfermedad. Método: Se analizó el aire exhalado de 100 voluntarios sanos, clasificados en 3 grupos (no fumadores, exfumadores y fumadores activos) y un grupo de 57 pacientes con EPOC. La muestra de aire exhalado se recogió mediante BioVOC® y se traspasó a tubos de desorción para su posterior análisis por cromatografía de gases y espectrometría de masas. Los VOC analizados fueron aldehídos lineales y ácidos carboxílicos. Resultados: Hexanal mostró diferencias estadísticamente significativas entre el grupo EPOC y los controles sanos (no fumadores y exfumadores), y nonanal entre el grupo control no fumador y el grupo EPOC. Conclusiones: Hexanal discrimina entre pacientes con EPOC y controles sanos no fumadores y exfumadores. Nonanal diferencia entre fumadores y exfumadores (con o sin EPOC) frente a controles no fumadores


Introduction: A major risk factor for chronic obstructive pulmonary disease (COPD) is tobacco smoke, which generates oxidative stress in airways, resulting in the production of volatile organic compounds (VOC). The purpose of this study was to identify VOCs in exhaled breath and to determine their possible use as disease biomarkers. Method: Exhaled breath from 100 healthy volunteers, divided into 3 groups (never smokers, former smokers and active smokers) and exhaled breath from 57 COPD patients were analyzed. Samples were collected using BioVOC® devices and transferred to universal desorption tubes. Compounds were analyzed by thermal desorption, gas chromatography and mass spectrometry. VOCs analyzed were linear aldehydesand carboxylic acids. Results: The COPD group and healthy controls (never smokers and former smokers) showed statistically significant differences in hexanal concentrations, and never smokers and the COPD group showed statistically significant differences in nonanal concentrations. Conclusions: Hexanal discriminates between COPD patients and healthy non-smoking controls. Nonanal discriminates between smokers and former smokers (with and without COPD) and never smokers


Asunto(s)
Humanos , Espiración , Eliminación Pulmonar , Enfermedad Pulmonar Obstructiva Crónica/fisiopatología , Compuestos Orgánicos Volátiles/análisis , Factores de Riesgo , Fumar/epidemiología , Estudios de Casos y Controles
16.
Arch Bronconeumol ; 53(5): 251-256, 2017 May.
Artículo en Inglés, Español | MEDLINE | ID: mdl-27780574

RESUMEN

INTRODUCTION: A major risk factor for chronic obstructive pulmonary disease (COPD) is tobacco smoke, which generates oxidative stress in airways, resulting in the production of volatile organic compounds (VOC). The purpose of this study was to identify VOCs in exhaled breath and to determine their possible use as disease biomarkers. METHOD: Exhaled breath from 100 healthy volunteers, divided into 3groups (never smokers, former smokers and active smokers) and exhaled breath from 57 COPD patients were analyzed. Samples were collected using BioVOC® devices and transferred to universal desorption tubes. Compounds were analyzed by thermal desorption, gas chromatography and mass spectrometry. VOCs analyzed were linear aldehydesand carboxylic acids. RESULTS: The COPD group and healthy controls (never smokers and former smokers) showed statistically significant differences in hexanal concentrations, and never smokers and the COPD group showed statistically significant differences in nonanal concentrations. CONCLUSIONS: Hexanal discriminates between COPD patients and healthy non-smoking controls. Nonanal discriminates between smokers and former smokers (with and without COPD) and never smokers.


Asunto(s)
Pruebas Respiratorias , Enfermedad Pulmonar Obstructiva Crónica/metabolismo , Compuestos Orgánicos Volátiles/análisis , Adulto , Anciano , Aldehídos/análisis , Biomarcadores , Estudios de Casos y Controles , Ácidos Grasos/análisis , Femenino , Humanos , Masculino , Persona de Mediana Edad , Propionatos/análisis , Fumar/metabolismo , Cese del Hábito de Fumar
17.
Med Ultrason ; 18(3): 294-8, 2016 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-27622404

RESUMEN

AIM: The objective of this study was to evaluate whether musculoskeletal (MS) ultrasound (US) can be useful in helping medical students to detect joint inflammation through physical examination. MATERIAL AND METHODS: The study was performed by two groups of four 6th year medical students. None had received any previous training in the clinical examination of joints or the use of ultrasound. Students were put through a 5-session training programme on the clinical detection of either knee [group 1] or metacarpophalangeal (MCP) [group 2] inflammation. After an initial training session on physical examination of normal and inflamed joints, the students examined 170 joints from 41 patients attending the hospital outpatient clinic in 4 separate sessions. The same joints were assessed for synovitis with US with the ensuing data compared to that of the students and analyzed for concordance with Cohen's unweighted kappa. RESULTS: In total 60 knees [group 1] and 110 MCP [group 2] were evaluated. The agreement between the presence of arthritis detected by the students in the four sessions and the presence of synovitis detected by US improved from the session I to sessions III with a marked improvement in the last session. CONCLUSIONS: MSUS may be an effective technique for helping students to acquire the ability to detect joint inflammation.


Asunto(s)
Artritis Reumatoide/diagnóstico por imagen , Competencia Clínica/estadística & datos numéricos , Inflamación/diagnóstico por imagen , Estudiantes de Medicina , Sinovitis/diagnóstico por imagen , Ultrasonografía , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Articulación de la Rodilla/diagnóstico por imagen , Masculino , Articulación Metacarpofalángica/diagnóstico por imagen , Persona de Mediana Edad , Examen Físico , Adulto Joven
18.
Nutr Hosp ; 33(3): 279, 2016 Jun 30.
Artículo en Español | MEDLINE | ID: mdl-27513506

RESUMEN

Introducción: la hipercolesterolemia es uno de los principales factores de riesgo en la enfermedad cardiovascular. Los esteroles vegetales se han postulado como agentes reguladores y beneficiosos para el control de esta.Objetivo: analizar el efecto de los esteroles vegetales añadidos en una leche en la reducción del colesterol plasmático en adultos jóvenes.Métodos: ensayo clínico, controlado, aleatorizado, doble ciego y cruzado. Los esteroles (2,24 g diarios) fueron administrados en dos tomas de 350 ml de una leche comercial desnatada, durante dos periodos de 3 semanas, separados por una "fase de lavado" de 2 semanas, en el grupo experimental. Al grupo control se le administró la misma cantidad de leche desnatada, sin esteroles. Tanto al inicio como al final de cadaperiodo de intervención se extrajeron muestras sanguíneas. Se analizaron la composición corporal, hábitos de salud y los siguientes marcadores sanguíneos: perfil lipídico, hematológico, inflamación, etc.Resultados: se incluyeron 54 personas en el estudio con una edad media de 38,8 ± 7,3 años. La diferencia porcentual entre los marcadores basales y finales para el colesterol total, colesterol-LDL, colesterol-HDL, triglicéridos y colesterol no-HDL fueron del 9,73%, 12,5%, 1,9%, 3,15% y 13,2%, respectivamente. Se obtuvieron diferencias estadísticamente significativas entre el grupo experimental y el grupo control, para todos los marcadores analizados excepto para los triglicéridos.Conclusión: los esteroles vegetales suministrados en un alimento de consumo habitual, como la leche, pueden ser una estrategia terapéutica no farmacológica para el control de la hipercolesterolemia de alto interés sanitario.


Asunto(s)
Anticolesterolemiantes/farmacología , Fitosteroles/farmacología , Adulto , Animales , Colesterol/sangre , Estudios Cruzados , Dieta , Método Doble Ciego , Femenino , Humanos , Lípidos/sangre , Masculino , Leche
19.
Nutr Hosp ; 33(4): 379, 2016 Jul 19.
Artículo en Español | MEDLINE | ID: mdl-27571657

RESUMEN

Introducción: recientemente ha surgido el interés por el posible papel de la microbiota intestinal como agente potenciador del rápido aumento que se está observando en el aumento de la prevalencia de obesidad en todo el mundo.Objetivos: relacionar las modificaciones que puede ocasionar el consumo de antibióticos en la microflora intestinal con la obesidad.Métodos: se extrajeron, de las Encuestas Nacionales de Salud de España, entre los años 2001 y 2011, las cifras de ingesta de antibióticos y la prevalencia (%) de obesidad en el mismo rango de edad, género y año. La media total de encuestados fue de 29.904 participantes.Resultados: se encontraron correlaciones significativas (p=0,09) en la asociación de la prevalencia de obesidad y la ingesta de antibióticos. Además, se objetivó que en el sexo masculino esta influencia es el doble que en el femenino.Conclusiones: los descubrimientos recientes en el campo de la microbiota intestinal y su relación con el huésped abren nuevos caminos en la comprensión de ciertas enfermedades inflamatorias y metabólicas, como la obesidad.


Asunto(s)
Antibacterianos/efectos adversos , Obesidad/epidemiología , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Utilización de Medicamentos , Femenino , Humanos , Masculino , Microbiota/efectos de los fármacos , Persona de Mediana Edad , Obesidad/microbiología , Factores Sexuales , España/epidemiología , Adulto Joven
20.
Nutr. hosp ; 33(4): 842-847, jul.-ago. 2016. tab, graf
Artículo en Español | IBECS | ID: ibc-154909

RESUMEN

Introducción: recientemente ha surgido el interés por el posible papel de la microbiota intestinal como agente potenciador del rápido aumento que se está observando en el aumento de la prevalencia de obesidad en todo el mundo. Objetivos: relacionar las modificaciones que puede ocasionar el consumo de antibióticos en la microflora intestinal con la obesidad. Métodos: se extrajeron, de las encuestas nacionales de salud de España, entre los años 2001 y 2011, las cifras de ingesta de antibióticos y la prevalencia (%) de obesidad en el mismo rango de edad, género y año. La media total de encuestados fue de 29.904 participantes. Resultados: se encontraron correlaciones significativas (p = 0,09) en la asociación de la prevalencia de obesidad y la ingesta de antibióticos. Además, se objetivó que en el sexo masculino esta influencia es el doble que en el femenino. Conclusiones: los descubrimientos recientes en el campo de la microbiota intestinal y su relación con el huésped abren nuevos caminos en la comprensión de ciertas enfermedades inflamatorias y metabólicas, como la obesidad (AU)


Introduction: Recently there has been interest in the possible role of intestinal microbiota as enhancing agent of the rapid increase being observed in the increased prevalence of obesity worldwide. Objectives: To relate the changes may cause the consumption of antibiotics in the intestinal microbiota with obesity. Methods: Were extracted from the National Health Survey of Spain, between 2001 and 2011, the numbers of intake of antibiotics and the prevalence (%) of obesity in the same age range, gender and year. The mean total respondents was 29,904 participants. Results: Significant correlations (p = 0.09) in the association of the prevalence of obesity and intake of antibiotics were found. Furthermore, in order that this influence males it is twice that in women. Conclusions: The recent discoveries in the field of intestinal microbiota and its relationship with the host break new ground in the understanding of certain inflammatory and metabolic diseases such as obesity (AU)


Asunto(s)
Humanos , Masculino , Femenino , Preescolar , Niño , Adolescente , Adulto Joven , Adulto , Persona de Mediana Edad , Anciano , Anciano de 80 o más Años , Obesidad/complicaciones , Obesidad/epidemiología , Síndrome Metabólico/complicaciones , Antibacterianos/uso terapéutico , Microbiota/fisiología , Adiposidad/fisiología , Encuestas y Cuestionarios , Enfermedades Inflamatorias del Intestino/complicaciones , Estudios de Cohortes , Estudios Transversales/métodos
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