Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 275
Filtrar
Más filtros

Intervalo de año de publicación
1.
Childs Nerv Syst ; 40(6): 1949-1951, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38427107

RESUMEN

The ventriculoperitoneal shunt placement procedure is common throughout the world, with a prevalence of approximately 30,000 procedures per year in the United States (5). However, the rate of complications is still important and must be remembered, with a percentage of 11 to 25% after the first year of implantation. Abdominal complications are described in 5-47% of the cases (6), and the abdominal pseudocyst is one of them. We present the case of a patient colonized by multidrug-resistant bacteria, who underwent exteriorization surgery of a ventriculoperitoneal shunt. Intraoperatively, a blue coloration was observed in the catheter, a phenomenon previously described in urinary infections (1)(2) but not before in pathologies of the central nervous system. Our objective is to present an atypical case of dysfunction of the ventriculoperitoneal shunt, whose diagnosis couldbe evidenced through the coloration of the catheter exteriorized in surgery.


Asunto(s)
Derivación Ventriculoperitoneal , Humanos , Derivación Ventriculoperitoneal/efectos adversos , Masculino , Femenino , Hidrocefalia/cirugía
2.
Ultrasound Obstet Gynecol ; 62(3): 398-404, 2023 09.
Artículo en Inglés | MEDLINE | ID: mdl-37099497

RESUMEN

OBJECTIVES: To describe the appearance and size of the ganglionic eminence (GE) in normal fetuses on midtrimester three-dimensional (3D) neurosonography and to report on the association between GE alterations (cavitation or enlargement) and malformation of cortical development (MCD). METHODS: This was a prospective multicenter cohort study of normal fetuses and a retrospective analysis of pathological cases with MCD. From January 2022 to June 2022, patients attending our tertiary centers for an expert fetal brain scan were recruited for the purpose of the study. A 3D volume of the fetal head, starting from the sagittal plane, was acquired in apparently normal fetuses using a transabdominal or transvaginal approach. Stored volume datasets were then evaluated independently by two expert operators. Two measurements (longitudinal diameter and transverse diameter) of the GE in the coronal view were obtained twice by each operator. Intra- and interobserver measurement variation was calculated. Reference ranges for GE measurements were calculated in the normal population. A previously stored volume dataset of 60 cases with MCD was also analyzed independently by the two operators using the same method in order to assess if GE abnormalities (cavitation or enlargement) were present. Postnatal follow-up was obtained in all cases. RESULTS: In the study period, 160 normal fetuses between 19 and 22 weeks of gestation were included in the study. The GE was visible in the coronal plane on 3D neurosonography in 144 (90%) cases and was not clearly visible in the remaining 16 (10%) cases. The intra- and interobserver agreement was almost perfect for the longitudinal diameter, with an intraclass correlation coefficient (ICC) of 0.90 (95% CI, 0.83-0.93) and 0.90 (95% CI, 0.86-0.92), respectively, and substantial for the transverse diameter, with an ICC of 0.80 (95% CI, 0.70-0.87) and 0.64 (95% CI, 0.53-0.72), respectively. A retrospective analysis of 50 cases with MCD in the second trimester showed that GE enlargement was present in 12 cases and GE cavitation was present in four cases. CONCLUSIONS: Systematic assessment of the GE in fetuses at 19-22 weeks of gestation is feasible on 3D neurosonography, with good reproducibility in normal cases. Cavitation or enlargement of the GE can be demonstrated in fetuses with MCD. © 2023 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of International Society of Ultrasound in Obstetrics and Gynecology.


Asunto(s)
Feto , Ultrasonografía Prenatal , Femenino , Embarazo , Humanos , Segundo Trimestre del Embarazo , Estudios Retrospectivos , Estudios Prospectivos , Reproducibilidad de los Resultados , Estudios de Cohortes , Ultrasonografía Prenatal/métodos , Feto/anomalías , Edad Gestacional
3.
Public Health ; 220: 155-164, 2023 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-37327562

RESUMEN

BACKGROUND: Individuals from the community who volunteer within prisons are an understudied population, despite previous research indicating the increase in involvement of the penal voluntary sector and benefits to both prisons and prisoners from effective implementation of volunteer programmes. OBJECTIVES: This study aimed to identify the characteristics, motivations and experiences of individuals who volunteer in prisons. STUDY DESIGN: This was a systematic review conducted according to Preferred Reporting Items for Systematic Reviews and Meta-analyses guidelines. METHODS: Peer-reviewed publications were identified through searchers of five electronic databases (MEDLINE, PsycINFO, Scopus, Applied Social Sciences Index & Abstracts and Social Sciences Database) without date restrictions, supplemented by hand searching and reference checking of retrieved articles. Explicit inclusion and exclusion criteria determined study eligibility. Study quality was appraised using standard tools. A narrative synthesis was conducted, and motivations were organised according to the Volunteer Function Inventory. RESULTS: Eight studies (five qualitative and three quantitative) reported a total of 764 volunteers across five countries. More than half of the included studies investigated individuals providing primarily religious volunteer support; volunteers in these studies were typically middle aged, White and female. Prison volunteers frequently described motivations related to altruistic or humanitarian values, as well as social reasons. Positive experiences of volunteering were related to personal benefits to volunteers. Negative experiences were related to a lack of support and challenges in volunteers' relationships with prison staff. CONCLUSIONS: Prison volunteer programmes have the ability to improve the psychological health of prisoners and provide a range of potential benefits to penal systems and volunteers themselves, but research on individuals who volunteer in prisons is limited. Difficulties in the volunteer role could be mitigated by developing formal induction and training packages, promoting closer integration with paid prison staff and providing ongoing supervision. Interventions to improve the volunteer experience should be developed and evaluated.


Asunto(s)
Prisioneros , Prisiones , Persona de Mediana Edad , Humanos , Femenino , Voluntarios/psicología , Motivación , Narración
4.
Lett Appl Microbiol ; 75(1): 24-28, 2022 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-35285076

RESUMEN

Prototheca spp. cause numerous infections in a wide variety of species, including treatment-unresponsive mastitis. Thus, the search for an effective therapy is essential. Silver nanoparticles are compounds with high therapeutic potential. This study aimed to evaluate the susceptibility profile and morphological changes in Prototheca spp. treated with biogenic silver nanoparticles (Bio-AgNP). The algaecide activity was evaluated in microplates by microdilution method, resulting in a MIC50 of 30 µg ml-1 and a MIC90 of 60 µg ml-1 . Scanning electron microscopy demonstrated changes in the surface of Prototheca bovis cells following treatment. The algaecide activity of Bio-AgNP suggests a therapeutic potential as a novel approach for the control of Prototheca spp. in bovine mastitis.


Asunto(s)
Herbicidas , Mastitis Bovina , Nanopartículas del Metal , Prototheca , Animales , Bovinos , Femenino , Mastitis Bovina/tratamiento farmacológico , Plata/farmacología
5.
Nature ; 519(7541): 78-82, 2015 Mar 05.
Artículo en Inglés | MEDLINE | ID: mdl-25739631

RESUMEN

In 2005 and 2010 the Amazon basin experienced two strong droughts, driven by shifts in the tropical hydrological regime possibly associated with global climate change, as predicted by some global models. Tree mortality increased after the 2005 drought, and regional atmospheric inversion modelling showed basin-wide decreases in CO2 uptake in 2010 compared with 2011 (ref. 5). But the response of tropical forest carbon cycling to these droughts is not fully understood and there has been no detailed multi-site investigation in situ. Here we use several years of data from a network of thirteen 1-ha forest plots spread throughout South America, where each component of net primary production (NPP), autotrophic respiration and heterotrophic respiration is measured separately, to develop a better mechanistic understanding of the impact of the 2010 drought on the Amazon forest. We find that total NPP remained constant throughout the drought. However, towards the end of the drought, autotrophic respiration, especially in roots and stems, declined significantly compared with measurements in 2009 made in the absence of drought, with extended decreases in autotrophic respiration in the three driest plots. In the year after the drought, total NPP remained constant but the allocation of carbon shifted towards canopy NPP and away from fine-root NPP. Both leaf-level and plot-level measurements indicate that severe drought suppresses photosynthesis. Scaling these measurements to the entire Amazon basin with rainfall data, we estimate that drought suppressed Amazon-wide photosynthesis in 2010 by 0.38 petagrams of carbon (0.23-0.53 petagrams of carbon). Overall, we find that during this drought, instead of reducing total NPP, trees prioritized growth by reducing autotrophic respiration that was unrelated to growth. This suggests that trees decrease investment in tissue maintenance and defence, in line with eco-evolutionary theories that trees are competitively disadvantaged in the absence of growth. We propose that weakened maintenance and defence investment may, in turn, cause the increase in post-drought tree mortality observed at our plots.


Asunto(s)
Carbono/metabolismo , Sequías , Bosques , Clima Tropical , Brasil , Dióxido de Carbono/metabolismo , Respiración de la Célula , Fotosíntesis , Árboles/citología , Árboles/metabolismo
6.
Ir Med J ; 113(7): 122, 2020 Jul 30.
Artículo en Inglés | MEDLINE | ID: mdl-35575042

RESUMEN

Aim The aim of this study is to assess the impact of EBUS on the concordance of clinical and pathological NSCLC staging in our center. Methods Data was collected retrospectively from the hospital database regarding patients who underwent surgical resection for early stage NSCLC between 2012 and 2017. Results A total of 251 patients were included. The mean age was 67 (±9), 55% (n=137) were male and 83% (n=209) were current/former smokers. In group A (n=154, 61%) clinical nodal stage (cN) was established from a combination of CT, PET CT and mediastinoscopy. Group B underwent additional EBUS (n=97, 39%). cN and pathological nodal staging (pN) were concordant in 78% (n=120) in group A versus 62% (n=60) in group B (p=0.009). Conclusion This study demonstrated higher rates of nodal discordance in patients who underwent EBUS which contrasts existing data that demonstrates improved concordance with EBUS. We describe these findings and potential explanations further in this study.

7.
Allergol Immunopathol (Madr) ; 47(4): 336-341, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-30509559

RESUMEN

INTRODUCTION AND OBJECTIVES: Omalizumab is present in international guidelines for the control of severe asthma, but data on the long-term effects in children are limited. Our objective was to perform a 'real-life' long-term trial of omalizumab in children with allergic asthma. MATERIALS AND METHODS: An observational single center 'real-life' study was performed. Data for treatment, lung function, side effect, asthma exacerbations and hospitalizations were recorded at six months and annually. RESULTS: Forty-eight patients <18 years of age were enrolled. Median treatment period was 2.9 (0.5-6). Fluticasone dose for the maintenance treatment decreases significantly at six months (452mcg/day to 329.89mcg/day, respectively). This difference was maintained throughout the follow-up. Nobody used oral corticosteroid after six months. The rate of hospital admissions and visits to the emergency department for asthma exacerbations decreased significantly in the third years and fourth years follow-up, respectively. There was an improvement in lung function. Mean values of FEV1 and FEF25-75% before treatment were 79.88 and 62.94, respectively; after six months of treatment a statistically significant change was seen with a mean FEV1 of 92.29 and FEF25-75% of 76.31 (p=0.0001). Lung function values were above normal throughout the six years of treatment. No side effects were reported. CONCLUSIONS: Overall in 'real life' omalizumab in children reduces asthma exacerbations and hospitalizations, improves lung function, and decreases the maintenance therapy. It is shown to be safe for up to six years of treatment in children.


Asunto(s)
Antiasmáticos/uso terapéutico , Asma/tratamiento farmacológico , Omalizumab/uso terapéutico , Adolescente , Niño , Preescolar , Progresión de la Enfermedad , Femenino , Estudios de Seguimiento , Hospitalización , Humanos , Inmunoglobulina E/inmunología , Inmunoglobulina E/metabolismo , Masculino , Guías de Práctica Clínica como Asunto , Índice de Severidad de la Enfermedad , Espirometría , Resultado del Tratamiento
9.
Support Care Cancer ; 26(9): 3073-3081, 2018 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-29564623

RESUMEN

BACKGROUND: Taxane acute pain syndrome (TAPS) is characterized by myalgias and arthralgias starting 2-3 days after taxane-based chemotherapy and lasting up to 7 days. In the absence of validated tools, many studies use the presence of both the myalgia and arthralgia components of the Common Terminology Criteria for Adverse Events (CTCAE) to define TAPS. The present study prospectively evaluated the frequency, severity, and impact of TAPS in patients with breast or prostate cancer. PATIENTS AND METHODS: In this prospective, non-randomized study, patients with breast or prostate cancer commencing taxane-based chemotherapy completed the CTCAE (version 4.03), the Functional Assessment of Cancer Therapy-Taxane (FACT-T), and Brief Pain Inventory (BPI) questionnaires at baseline and once between days 5 and 7 of each chemotherapy cycle. RESULTS: From March 2015 to April 1, 2016, 75 patients (breast n = 66, prostate n = 9) were enrolled; 83% received docetaxel and 16% paclitaxel and 1% withdrew. After the first cycle of taxane, TAPS was reported by 25/69 (36.2%) patients; a further 8/69 (18.2%) reporting TAPS after a subsequent chemotherapy treatment. Overall incidence of TAPS was 33/75 (44%). While associated with detrimental scores on FACT-T and BPI as well as increased use of analgesics in 63% (21/33) of patients with TAPS, TAPS did not lead to alterations in chemotherapy dosing. CONCLUSIONS: TAPS is common after taxane-based chemotherapy, and its presence is associated with reduced quality of life and increased analgesic requirements. Prospective patient-reported outcome assessments are crucial to help individualize treatment strategies and improve management of TAPS.


Asunto(s)
Dolor Agudo/tratamiento farmacológico , Artralgia/inducido químicamente , Neoplasias de la Mama/complicaciones , Hidrocarburos Aromáticos con Puentes/efectos adversos , Mialgia/inducido químicamente , Neoplasias de la Próstata/complicaciones , Taxoides/efectos adversos , Dolor Agudo/psicología , Neoplasias de la Mama/tratamiento farmacológico , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Neoplasias de la Próstata/tratamiento farmacológico , Calidad de Vida , Síndrome
10.
Apoptosis ; 22(6): 816-826, 2017 06.
Artículo en Inglés | MEDLINE | ID: mdl-28220271

RESUMEN

The Endocannabinoid System (ECS) has been recognized as a crucial player in human reproduction. Changes in the levels of anandamide (AEA), the main endocannabinoid (eCB), negatively affect reproductive events, such as implantation, decidualization and placentation. Cyclooxygenase-2 (COX-2) is a major enzyme expressed in the endometrium and its involvement in female reproductive system has evolved over the last few years. Currently, COX-2 oxidative metabolism is emerging as a key mediator of AEA-induced actions. In this study, we aimed to disclose the mechanisms underlying the effects of AEA in human endometrial stromal cell fate, using a human-derived endometrial cell line (St-T1b). We found that AEA has an anti-proliferative activity through a direct effect on cell cycle progression by inducing G2/M arrest. Moreover, high levels of AEA increased COX-2 activity, triggering apoptotic cell death, with loss of mitochondrial membrane potential, induction of caspase -9 and -3/-7 activities, and cleavage of poly (ADP-ribose) polymerase (PARP). In addition, the involvement of intracellular reactive oxygen species (ROS) and endoplasmic reticulum (ER) stress was verified. These effects were prevented by pre-incubation with a selective COX-2 inhibitor. Therefore, we hypothesize that, in response to altered levels of this eCB, COX-2 oxidative metabolism of AEA may deregulate endometrial cell turnover and, consequently, interfere with cellular events crucial for implantation and decidualization, with a negative impact on human fertility.


Asunto(s)
Apoptosis , Ácidos Araquidónicos/metabolismo , Endocannabinoides/metabolismo , Estrés del Retículo Endoplásmico , Alcamidas Poliinsaturadas/metabolismo , Ciclo Celular , Línea Celular , Proliferación Celular , Forma de la Célula , Supervivencia Celular , Femenino , Humanos , Potencial de la Membrana Mitocondrial , Modelos Biológicos , Oxidación-Reducción , Estrés Oxidativo , Receptores de Cannabinoides/metabolismo , Canales Catiónicos TRPV/metabolismo
11.
Lett Appl Microbiol ; 64(6): 419-423, 2017 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-28349671

RESUMEN

Prototheca species have increasingly been reported to be opportunistic pathogens that cause mastitis in dairy herds, and it poses an emergent problem because at present, there are no effective therapies for the treatment of protothecal mastitis. This study investigated the in vitro algicidal effect of guanidine on 75 Prototheca zopfii genotype 2 strains isolated from 75 cases of clinical and subclinical bovine mastitis. All strains were susceptible to guanidine in vitro with minimal algaecide concentrations ranging from 0·001 to 0·035%. Guanidine is known to have a high microbicidal effect and is considered to be a new generation microbicidal compound. It is not toxic to human mucous membranes and conjunctivas at low concentrations and has been used as a disinfectant in swimming pools and as an antiseptic for human wounds. The algicidal action of guanidine at low concentrations indicates that it could be an alternative disinfectant or antiseptic for cleaning of the dairy environment and milking equipment, in pre- and postdipping solutions, in the chemical dry therapy of bovine teats and even in the intramammary therapy of P. zopfii infections. This is the first report of the in vitro algicidal effect of guanidine on P. zopfii strains of animal origin. SIGNIFICANCE AND IMPACT OF THE STUDY: Prototheca zopfii genotype 2 is an opportunistic pathogen of bovine mastitis. To date, no effective therapies against protothecal mastitis have been developed. The in vitro algicidal effect of guanidine on 75 P. zopfii genotype 2 strains isolated from cows revealed that all of the isolates were susceptible to the compound at low concentrations, which indicates that guanidine may be used as an antiseptic/disinfectant for dairy milking equipment, in pre- and postdipping solutions, and as a chemical dry therapy or an intramammary therapy. This study describes the in vitro algicidal effect of guanidine on P. zopfii for the first time.


Asunto(s)
Guanidina/farmacología , Mastitis Bovina/epidemiología , Prototheca/efectos de los fármacos , Animales , Antiinfecciosos/farmacología , Antiinfecciosos Locales/farmacología , Bovinos , Industria Lechera , Desinfectantes/farmacología , Femenino , Genotipo , Humanos , Mastitis Bovina/tratamiento farmacológico , Epidemiología Molecular , Prototheca/genética , Prototheca/aislamiento & purificación
12.
J Anim Breed Genet ; 134(1): 27-33, 2017 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-27905150

RESUMEN

The aim of this study was to estimate genetic parameters for prenatal (PRE) and postnatal (POS) mortality in Nellore cattle. A total of 13 141 (PRE) and 17 818 (POS) records from Nellore females were used. PRE and POS were recorded using binary scale scores: a score of '1' was given to calves that were born alive (PRE) and those that were alive at weaning (POS), and a score of '0' was given to calves that were not alive at or around birth (PRE), as well as to those weighed at birth but not at weaning (POS). The relationship matrix included 698 sires, 107 paternal grandsires and 69 maternal grandsires. Data were analysed using Bayesian inference and a sire-maternal grandsire threshold model, including contemporary groups as random effects, and the classes of dam age at the beginning of mating season (for PRE), and dam age at calving and birthweight (linear covariable) (for POS), as fixed effects. For both traits, the covariance between direct and maternal effects (rD,M ) was estimated (rD,M ≠ 0) or fixed at zero (rD,M  = 0). PRE and POS rates were 3.00 and 4.04%, respectively. Estimates of direct and maternal heritability were 0.07 and 0.17, respectively, for PRE, and 0.02 and 0.07, respectively, for POS, assuming rD,M  = 0. For rD,M  ≠ 0, these estimates were 0.07 and 0.12, respectively, for PRE, and 0.03 and 0.07, respectively, for POS. The correlation estimates between direct and maternal effects were -0.71 (PRE) and -0.33 (POS). PRE and POS show low genetic variability, indicating that these traits probably suffer major environmental influences. Additionally, our study shows that the maternal genetic component affects preweaning calf mortality twice as much (or more) as the direct genetic component. A large number of offspring per sire is necessary in progeny tests to genetically decrease calf mortality.


Asunto(s)
Bovinos/genética , Bovinos/fisiología , Animales , Animales Recién Nacidos , Bovinos/clasificación , Femenino , Mortalidad , Embarazo
13.
Reproduction ; 152(4): 351-61, 2016 10.
Artículo en Inglés | MEDLINE | ID: mdl-27568210

RESUMEN

Endocannabinoids (eCBs) are endogenous mediators that along with the cannabinoid receptors (CB1 and CB2), a membrane transporter and metabolic enzymes form the endocannabinoid system (ECS). Several eCBs have been discovered with emphasis on anandamide (AEA). They are involved in several biological processes such as energy balance, immune response and reproduction. Decidualization occurs during the secretory phase of human menstrual cycle, which involves proliferation and differentiation of endometrial stromal cells into decidual cells and is crucial for the establishment and progression of pregnancy. In this study, a telomerase-immortalized human endometrial stromal cell line (St-T1b) and non-differentiated primary cultures of human decidual fibroblasts from term placenta were used to characterize the ECS using immunoblotting and qRT-PCR techniques. It was shown that St-T1b cells express CB1, but not CB2, and that both receptors are expressed in HdF cells. Furthermore, the expression of fatty acid amide hydrolase (FAAH), the main degrading enzyme of AEA, increased during stromal cell differentiation. AEA inhibited cell proliferation, through deregulation of cell cycle progression and induced polyploidy. Moreover, through CB1 binding receptor, AEA also impaired cell differentiation. Therefore, AEA is proposed as a modulator of human decidualization. Our findings may provide wider implications, as deregulated levels of AEA, due to Cannabis sativa consumption or altered expression of the metabolic enzymes, may negatively regulate human endometrial stromal cell decidualization with an impact on human (in)fertility.Free Portuguese abstract: A Portuguese translation of this abstract is freely available at http://www.reproduction-online.org/content/152/4/351/suppl/DC1.


Asunto(s)
Ácidos Araquidónicos/farmacología , Decidua/efectos de los fármacos , Endocannabinoides/farmacología , Endometrio/efectos de los fármacos , Fibroblastos/efectos de los fármacos , Placenta/efectos de los fármacos , Alcamidas Poliinsaturadas/farmacología , Células del Estroma/efectos de los fármacos , Agonistas de Receptores de Cannabinoides/farmacología , Diferenciación Celular/efectos de los fármacos , Proliferación Celular/efectos de los fármacos , Células Cultivadas , Decidua/metabolismo , Implantación del Embrión/efectos de los fármacos , Endometrio/metabolismo , Femenino , Fibroblastos/metabolismo , Humanos , Técnicas In Vitro , Placenta/metabolismo , Embarazo , Células del Estroma/metabolismo
14.
Skin Res Technol ; 22(3): 325-33, 2016 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-26346940

RESUMEN

BACKGROUND/PURPOSE: Ultraviolet (UV) radiation is responsible for sunburns, skin cancer, photoaging, and the production of reactive oxygen species (ROS). The awareness on preventing these deleterious effects made the use of anti-UVB formulations an important part of population habits; however, despite the availability of several antioxidants capable of ROS scavenging, the pharmaceutical market lacks products associating UV filters with natural compounds of proven efficacy. Here, we investigated the effect of rutin, a flavonoid with antioxidant activity, associated with UVB filters in dermocosmetic preparations. METHODS: Formulations were assessed through its antioxidant activity, in vitro photoprotective effectiveness, photostability, and in vivo skin tolerance (hydration, transepidermal water loss, and erythema). RESULTS: Samples containing rutin were compatible with the human skin and presented a pronounced antioxidant potential, with scavenging activity values 75% higher than the ones containing only UVB filters. Although rutin could not prevent the sunscreens photodegradation post-irradiation, the bioactive compound significantly increased the formulations critical wavelengths, showing a photoprotective gain, especially in the UVA range. CONCLUSION: In conclusion, the absorption in the UVA range, coupled with ROS scavenging potential, proved the positive effect of rutin applied to anti-UVB formulations, making this bioactive compound a promising candidate for photoprotection improvement.


Asunto(s)
Protectores contra Radiación/administración & dosificación , Rutina/administración & dosificación , Fenómenos Fisiológicos de la Piel/efectos de los fármacos , Fenómenos Fisiológicos de la Piel/efectos de la radiación , Protectores Solares/administración & dosificación , Rayos Ultravioleta/efectos adversos , Absorción de Radiación/efectos de los fármacos , Adulto , Antioxidantes/metabolismo , Relación Dosis-Respuesta a Droga , Relación Dosis-Respuesta en la Radiación , Sinergismo Farmacológico , Femenino , Filtración/métodos , Humanos , Piel/efectos de los fármacos , Piel/efectos de la radiación , Absorción Cutánea/efectos de los fármacos , Absorción Cutánea/fisiología , Absorción Cutánea/efectos de la radiación , Pérdida Insensible de Agua/efectos de los fármacos , Pérdida Insensible de Agua/fisiología , Pérdida Insensible de Agua/efectos de la radiación
15.
Allergol Immunopathol (Madr) ; 44(4): 351-8, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27040809

RESUMEN

BACKGROUND: The sensitisation profile at molecular level in plant-food allergy is complex. Several allergens may be involved, with different potential for severe reactions. lipid transfer proteins (LTP) are considered the most relevant plant-food allergens in adults in Mediterranean countries, but less is known in children. AIM: To describe the clinical pattern and sensitisation profile of children with plant-food allergy and LTP sensitisation from Northeast Spain. METHODS: Children with history of immediate reaction to plant-food(s), positive skin-prick-test to the culprit plant-food(s) and specific-IgE to plant-food LTPs were analysed. RESULTS: 130 children were included. 69.2% (90/130) had reacted to ≥2 taxonomically unrelated plant-foods. Peach, walnut, hazelnut and peanut were most frequently involved. Reactions severity ranged from anaphylaxis (45.4%, 59/130) to oral symptoms only. Sensitisation to a particular plant-food LTP not always caused clinical symptoms with that plant-food; 69% (40/58) and 63% (17/27) of peach- and walnut-tolerant subjects had positive rPru p 3 and nJug r 3 specific IgE, respectively. 65.4% (85/130) of children were also sensitised to storage proteins, which was associated to anaphylaxis and nut allergy. However, 60% of patients without nuts/seeds allergy were sensitised to storage proteins. Specific-IgE levels to LTPs and/or storage proteins were not useful to predict allergy (vs. tolerance) to peach, walnut, peanut or hazelnut. CONCLUSIONS: Sensitisation to LTP and/or storage proteins without clear clinical significance is relatively common. Prospective longitudinal studies are required to evaluate the relevance of these silent sensitisations over time. Caution is required when interpreting the results of molecular-based diagnostic tools in clinical practice.


Asunto(s)
Anafilaxia/diagnóstico , Antígenos de Plantas/inmunología , Enfermedades Asintomáticas , Proteínas Portadoras/inmunología , Hipersensibilidad a los Alimentos/diagnóstico , Nueces/inmunología , Proteínas de Plantas/inmunología , Adolescente , Anafilaxia/inmunología , Niño , Preescolar , Reacciones Cruzadas , Femenino , Hipersensibilidad a los Alimentos/inmunología , Humanos , Inmunoglobulina E/análisis , Inmunoglobulina E/inmunología , Lactante , Recién Nacido , Masculino , Análisis por Micromatrices , Estudios Prospectivos , Prunus persica/inmunología , Estudios Retrospectivos , Pruebas Cutáneas , España
16.
Poult Sci ; 95(4): 749-59, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-26908890

RESUMEN

One experiment was conducted to evaluate the effects of two incubation temperature profiles (TEM) and two trace mineral (TM) sources with their inclusion levels on performance and footpad skin development of Ross 708 chickens. A total of 1,000 eggs from 29-wk-old breeders were incubated following two TEM profiles: a standard (S) eggshell temperature (37.8±0.2°C) for 21 d of incubation and an early-low late-high (LH) TEM. The second profile had low (37.2±0.2°C) temperature for the first 3 d, and S until the last 3 d when eggshell temperature was 39.2±0.2°C. At hatch, 15 male and 15 female chicks from each TEM were selected, and footpads sampled. Additionally, 168 males per TEM were placed in 24 battery cages with 7 chickens each. The 48 cages were assigned to two TM dietary treatments: one with inorganic (ITM) sources of Zn (120 ppm), Cu (10 ppm), and Mn (120 ppm) and the other with chelated (CTM) mineral sources using lower inclusion levels of Zn (32 ppm), Cu (8 ppm), and Mn (32 ppm). At 7 and 21 d, BW gain and feed conversion ratio (FCR) were obtained and chicks sampled for footpads. Histological analysis assessed thickness and area ofstratus corneum(SC), epidermis, and dermis. Data were analyzed as a completely randomized block design in a 2×2 factorial arrangement of treatments with TEM and sex as main factors for hatch data and TEM and TM diets for 7 and 21 d data. The LH chicks were heavier than S chicks at hatch, but had more residual yolk. However, S TEM male chickens were heavier at 7 and 21 d. The S TEM had better FCR than LH TEM.Papillaedermis parameters at hatch were higher in the S TEM. At 7 d, SC height and area were increased by the S TEM. At 21 d CTM increased dermis height and area. In conclusion, TEM affected footpad skin development and broiler performance. Replacing ITM with reduced levels of CTM increased dermis development without affecting live performance or other skin layers.


Asunto(s)
Pollos/fisiología , Pie/fisiología , Temperatura , Oligoelementos/metabolismo , Alimentación Animal/análisis , Crianza de Animales Domésticos , Animales , Pollos/crecimiento & desarrollo , Colágeno/análisis , Dermis/crecimiento & desarrollo , Dieta/veterinaria , Suplementos Dietéticos/análisis , Epidermis/crecimiento & desarrollo , Femenino , Pie/crecimiento & desarrollo , Masculino , Distribución Aleatoria , Reproducción
17.
Curr Microbiol ; 71(4): 476-82, 2015 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-26092419

RESUMEN

The photoprotective and antimutagenic activity of opened and closed basidiocarps of Agaricus subrufescens (=A. blazei; =A. brasiliensis) obtained by different extraction methods were evaluated on Aspergillus nidulans conidia submitted to ultraviolet (UV) light. The aqueous extracts were obtained by three extraction methods: maceration, infusion, and decoction, at two different extraction times. The extracts of A. subrufescens did not present toxicity for A. nidulans conidia. A suspension of A. nidulans conidia was submitted to extracts before and after the exposure to UV light. All basidiocarp extracts, regardless of the extraction method or development stage, protected A. nidulans conidia against the damaging effects of the mutagenic agent. The antimutagenic and photoprotective activity was strengthened with extracts obtained by 168-h maceration, followed by 24-h maceration and 60-min infusion and, at last, by 30-min infusion. Although the extracts presented protector effect as well as recoverer effect to the action of UV light, the preventive effect was more evident. Differences in the biological activity in function of the different development stages were detected with greater antimutagenic and photoprotective activity for the opened basidiocarps. However, the extraction method is the most important factor to be considered when compared to the basidiocarp development stage to obtain better antimutagenic and photoprotective activity of A. subrufescens basidiocarps.


Asunto(s)
Agaricus/química , Antimutagênicos/aislamiento & purificación , Aspergillus nidulans/efectos de los fármacos , Aspergillus nidulans/efectos de la radiación , Viabilidad Microbiana/efectos de los fármacos , Viabilidad Microbiana/efectos de la radiación , Protectores contra Radiación/aislamiento & purificación , Antimutagênicos/metabolismo , Cuerpos Fructíferos de los Hongos/química , Protectores contra Radiación/metabolismo , Esporas Fúngicas/efectos de los fármacos , Esporas Fúngicas/efectos de la radiación
18.
J Anim Breed Genet ; 132(1): 42-50, 2015 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-25174988

RESUMEN

The aim of this study was to estimate genetic associations between temperament and performance traits. Temperament was evaluated in yearling male and female Nellore cattle, using four traits: temperament score (TS), for assessing animals' reactions in a corral pen (n = 25,691); movement score (MOV), for animals' movements recorded inside the crush; crush score (CS), for animal's general reactivity inside the crush; and flight speed (FS), for the speed (in m/s) at which the animals exited the crush (n = 11,697, for the last three methods); for all the temperament traits, lower scores indicate animals with calmer temperament. Performance traits were visual scores for conformation (C), finishing precocity (P) and muscling (M) evaluated at yearlings, and average daily gain (ADG) was estimated from weaning to yearling. Bayesian inference using Gibbs sampling was applied to estimate (co)variance components and genetic and phenotypic parameters. Heritability estimates for the temperament traits ranged from 0.07 (CS) to 0.28 (FS). Genetic correlations of the temperament traits with ADG and C, P and M were negative and ranged from -0.02 to -0.31. Phenotypic correlations were negative and consistently lower than the genetic, ranging from -0.08 to -0.02. It was concluded that the temperament traits assessed had favourable genetic correlation estimates with the performance traits studied. However, indirect responses in temperament when selecting for higher ADG and visual scoring system of C, P and M, will be low.


Asunto(s)
Bovinos/genética , Estudios de Asociación Genética , Temperamento , Animales , Teorema de Bayes , Bovinos/crecimiento & desarrollo , Bovinos/fisiología , Femenino , Genotipo , Masculino , Fenotipo
19.
J Pharm Belg ; (2): 10-9, 2015 Jun.
Artículo en Francés | MEDLINE | ID: mdl-26466505

RESUMEN

BACKGROUND: Medication errors (ME) could lead to severe adverse events. Hospital staff have to gain practical knowledge and ME preventing methods. Simulation is a teaching method more and more used in health system. The aim of this study was to create an error patient room which represents a factitious patient room with ME for health professionals of the hospital. METHOD: Chosen according 3 criteria (errors already observed, "never events" related errors, errors associated with frequent issues), 21 ME were designed concerning the different steps of the medication process (prescribing, dispensing and administration) and took place in a patient room reserved for training. Seven sessions were proposed from april to june 2014. All health professionals were invited to participate on a voluntary basis. Training session was not time limit. An individual debriefing was done after each session. RESULTS: Forty-six health professional participated of 13 different hospitals' departments: 7 medicine residents, 26 nurses and 13 persons of the pharmacy staff (8 pharmacy technicians, 3 pharmacy students and 2 pharmacists). EM rate ranged of 33% (medicine residents), 50% (nurses) to 47% (pharmacy staff). DISCUSSION - CONCLUSION: The training ME room represents an easy, useful and reusable simulating tool, to train health professional and to improve their knowledge's and practical methods. This learning tool is developed in order to provide patient safety. This successful study will be evaluated by satisfaction questionnaire. Future sessions will be programmed.


Asunto(s)
Educación en Farmacia/métodos , Errores de Medicación/prevención & control , Sistemas de Medicación en Hospital/normas , Personal de Hospital , Humanos , Sistemas de Medicación en Hospital/organización & administración , Farmacéuticos , Servicio de Farmacia en Hospital , Técnicos de Farmacia , Estudiantes de Farmacia
20.
Poult Sci ; 93(8): 1900-9, 2014 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-24894526

RESUMEN

Footpad dermatitis begins early in life, and there is evidence of individual susceptibility. An experiment was conducted to evaluate the carryover effects of breeder feed restriction programs and incubation temperatures (TEM) on progeny footpad development at hatch, and 7 and 22 d. Cobb 500 fast feathering breeders were subjected to 2 dietary feed restriction programs during rearing: skip-a-day (SAD) and every-day feeding (EDF). At 60 wk of age, eggs from each group were collected and incubated according to 2 TEM, standard (S) eggshell temperature (38.1°C) and early-low late-high (LH). This second profile had low (36.9°C) eggshell temperature for the first 3 d, and standard temperature until the last 3 d when eggs were subjected to elevated (38.9°C) eggshell temperature. At hatch, 15 chicks from each treatment combination were sampled to obtain footpads for histological analysis. Seventy-two chicks per treatment were placed in 48 cages (6/cage), and raised to 22 d. At 7 and 22 d, 1 and 2 chickens, respectively, were sampled for footpads. The BW and group feed intake were recorded to obtain BW gain and feed conversion ratio at 7 and 21 d. Histological analysis assessed thickness and total area of stratus corneum (SC), epidermis, and dermis, and total papillae height. Data were analyzed as randomized complete block design in a 2 × 2 factorial arrangement of treatments. There was a negative effect of LH TEM on performance at both ages. An interaction effect on SC area and papillae height was observed at hatch. Additionally, SAD treatment increased thickness and area of footpad dermis. At 7 d, the SC parameters of the SAD progeny were increased. Epidermis thickness was affected by treatment interaction. Furthermore, LH TEM decreased epidermis thickness and dermis area. At 22 d, interaction effects were observed in thickness and area of SC and epidermis. Incubation S TEM increased thickness and area of dermis. It was concluded that breeder feed restriction programs and incubation TEM profiles may have carryover effects on histomorphological traits of footpads.


Asunto(s)
Crianza de Animales Domésticos , Restricción Calórica/veterinaria , Pollos/fisiología , Pie/crecimiento & desarrollo , Temperatura , Animales , Pollos/crecimiento & desarrollo , Femenino , Masculino , Técnica del ADN Polimorfo Amplificado Aleatorio
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA