Fungal decay and shelf life of oranges coated with chitosan and bergamot, thyme, and tea tree essential oils.

UNLABELLED: Chitosan coatings, containing or not essential oils (bergamot, thyme and tea tree oil), were applied to oranges (cv. Navel Powell). Antifungal effect was evaluated by applying coatings before and after inoculating the fruit with Penicillium italicum CECT 2294 (10(5) spores/mL), preventive and curative treatments, respectively. The effect of coatings on the quality parameters (acidity, pH, soluble solids, juice percentage, weight loss, firmness, color parameters, and respiration rate) was controlled for the different oranges samples throughout the cold storage time. Preventive antimicrobial treatments with coatings containing tea tree oil were the most effective with a reduction of the microbial growth (expressed as the percentage of infected samples) of 50%, as compared to the uncoated samples. The coatings did not lead to any relevant changes in the development of the sample quality parameters throughout the cold storage, except for a slightly reduced loss of both weight and firmness when the coatings contained bergamot oil. PRACTICAL APPLICATIONS: Results of this study are a useful tool for the development of new environmental friendly and healthier commercial applications in the control of the main postharvest fungal decay of citrus fruits.

[Post-radiotherapy and atherosclerotic stenosis of the internal carotid artery treated by angioplasty and stenting]. / Sténose carotidienne mixte post-radique et athérosclérotique traitée par stenting carotidien protégé.

We report the case of a 70-year old man treated by surgery and radiotherapy for a neoplasic lesion of the tongue in whom severe symptomatic stenosis of the left internal carotid artery occurred a few years later. This lesion was successfully treated by percutaneous carotid angioplasty and stenting with distal embolic protection (PCAS). After a period of experimenting with angioplasty and stenting, PCAS is becoming a serious alternative for carotid thrombo-endarterectomy (TEA). Indications for PCAS are currently patients who, due to several reasons, are no good candidates for surgery. Several of large PCAS versus TEA randomized trials are underway and final results will help us determine the best indication for TEA or PCAS for both low and high risk patients with symptomatic or asymptomatic carotid stenosis.

Procederes de regresión lineal como soluciones al problema de la comparación de métodos: II Errores analíticos constantes pero diferentes / Procedures of linear regression as solutions to the problem of the methods comparison: II Constant analythical errors but differents

En este trabajo se discute el desempeño de cuatro solucionesdel problema de comparación de métodos: regresión de mínimoscuadrados ordinarios (P1), regresión de Passing-Bablok(P2), regresión de Deming con coeficiente λ estimado apartir de las varianzas intrarreplicados (P3) y regresión deDeming con coeficiente λ estimado a partir de las varianzasde las series (P4), cuando los errores analíticos correspondientespueden asumirse constantes, en el rango de concentracionesde interés, pero diferentes. El caso de los erroresanalíticos constantes e iguales se presentó en otro trabajo...(AU)

Microdeleción del cromosoma Y en paciente infértil oligozoopérmico severo / Microdeletion of Y chomosome in severe olygozoospermic infertile patient

We are reporting a 37 year old male with severe oligozoospermia and a history of infertility for thirteen years and surgery for severe unilateral varicocele. The hormonal levels for FSH, LH and T, and karyotype were within the normal range. Multiplex PCR revealed the presence of a de novo microdeletion in the azoospermia factor (AZF) c region involving the deleted in azoospermia (DAZ) and basic protein Y-2 (BPY2) genes. These results suggest that severe oligozoospermia should be considered for the screening of microdeletions of Yq involving the AZFc region even in the presence of a varicocele