Dwarf pomegranate (Punica granatum L. var. nana): source of 5-HMF and bioactive compounds with applications in the protection of woody crops

While the properties of edible pomegranate varieties have been widely explored, there is little information on ornamental types. In this study, possible alternatives for the valorization of dwarf pomegranate fruits have been explored. The characterization of their hydromethanolic extract by gas chromatography−mass spectrometry evidenced the presence of high contents of 5-hydroxymethylfurfural (a carbon-neutral feedstock for the production of fuels and other chemicals) and β- and γ-sitosterol stereoisomers. The microbicidal activity of the crude extract, both alone and in a conjugate complex with chitosan oligomers (COS), was investigated against three plant pathogenic microorganisms that cause significant losses in woody crops: Erwinia amylovora, E. vitivora, and Diplodia seriata. In in vitro assays, a strong synergistic behavior was found after conjugation of the bioactive constituents of the fruit extract with COS, resulting in minimum inhibitory concentration (MIC) values of 750 and 375 μg·mL−1 against E. amylovora and E. vitivora, respectively, and an EC90 value of 993 μg·mL−1 against D. seriata. Hence, extracts from the non-edible fruits of this Punicaceae may hold promise as a source of high value-added phytochemicals or as environmentally friendly agrochemicals

Estrés laboral en pacientes migrañosos: diferencias según la frecuencia de las crisis

Resumen: Introducción: La migraña es un trastorno común y prevalente que contribuye considerablemente al gasto sanitario e interfiere en la calidad de vida de los pacientes. Nuestro objetivo fue explorar el nivel de estrés en el trabajo en una muestra de migrañosos y su posible asociación con la cronicidad del proceso Material y métodos: Se aplicó el test de Maslach («burnout inventory»: 22 ítems agrupados en bloques que valoran: agotamiento emocional [AE], realización personal [RP], despersonalización en el trabajo [DP]) e influencia positiva (IP) a 94 sujetos consecutivos reclutados en consultas. Las diferencias se compararon entre grupos clínicos (migraña crónica [MC] —más de 15 días/mes de cefalea/3 meses— vs. migraña episódica [ME] — 15 days/month with headache over a 3-month period vs episodic migraine [EM]: < 15 days/month with headache) using the general linear model adjusted for age and MIDAS score Results: The mean age was higher in the CM group. Mean MIDAS scores were 51 ± 4.1 in CM, and 17.7 ± 15 in EM (P=.001). Adjusted means for EE were 24.6 ± 2.6 in CM patients, 16.2 ± 2.6 in EM patients, and 13.4 ± 2.3 (P=.03) in the healthy group. MIDAS scale scores were inversely correlated to PA (P<.05) Discussion: Our results suggest that the level of EE at work is higher in EM than in CM patients, while PA levels decrease as impact on the MIDAS scale increases. The Maslach scale is a potentially useful tool for studying migraine impact. Surprisingly, EE is higher in patients with fewer episodes; this tendency could be related to stress adaptation mechanisms present in patients with chronic illness. Palabras clave: Migraña, Maslach, Burnout, Estrés, Cefalea crónica, Trabajo, Keywords: Migraine, Maslach, Burnout, Stress, Chronic headache, Wor