188 research outputs found
A review of nutritional value and putative health-effects of quince (Cydonia oblonga Mill.) fruit
Quince (Cydonia oblonga Mill.) has been long regarded to be a health-promoting fruit. Although it is mainly consumed in processed form, its relatively heat-stable polyphenolics were confirmed to be responsible for most of the beneficial effects. This review aims to show basic nutritional information on quince fruit such as carbohydrate, fibre, pectin and mineral element contents. In addition, vitamin and polyphenolic contents and composition as well as the physiological effects of quince consumption were also surveyed. Information on presumable protective effects against several diseases including inflammation, atopic dermatitis, ulcers and cancer is summarized. Potential antibacterial effects of quince polyphenolics were also considered. Polyphenolics are supposed to be responsible for the major part of beneficial health-effects, and phenolic compounds predominantly accumulate in peel. There exists a considerable extent of genetic variation in phytochemical composition among cultivars, which might be exploited in designing future breeding programs for quince improvement and opening new ways for health-related uses
A perinatalis veszteségek és intrauterin magzati halálozások aktuális szakmai gyakorlatának, valamint a szakemberekre gyakorolt hatásainak vizsgálata
Absztrakt
Bevezetés: A perinatalis veszteség miatti gyász a komplikált
gyász jelensége, megélése terhet ró a szülőkre, környezetükre és az egészségügyi
szakemberekre egyaránt, mégis kevéssé feldolgozott, tanulmányozott terület.
Célkitűzés: A perinatalis veszteségeket érintő szakmai
gyakorlat bemutatása választott egészségügyi intézményekben, az aktuális
protokollt és jogszabályokat összevetve a veszteségeket elszenvedett
pácienseknek nyĂşjtott tĂ©nyleges segĂtsĂ©ggel. További cĂ©l volt annak vizsgálata,
hogyan Ă©rintik szakmailag Ă©s pszichĂ©sen ezen esetek a gyĂłgyĂtĂł, segĂtĹ‘
szakembereket. MĂłdszer: MĂ©lyinterjĂşk kĂ©szĂtĂ©se Ă©rintett
szakemberekkel (első ütemben n = 8) az adott intézményi gyakorlat
sajátosságaira, a meglévő és igényelt elméleti és gyakorlati ismeretekre, a
személyes attitűdökre és a megélt nehézségekre vonatkozóan.
Eredmények: Különösen nehéz feladat ezen esetekben a
szakmai helytállás: kevés a konkrét kommunikációs „eszköz” a páciensek által
megĂ©lt gyász segĂtĂ©sĂ©re, a saját gyászmunka elvĂ©gzĂ©sĂ©re. Mindez kockázati
tényező a burnout szindróma megjelenésében. Következtetések: Az
eredmĂ©nyek felhasználhatĂłk speciális kĂ©pzĂ©s kialakĂtásához, amely adekvát
szaksegĂtsĂ©get nyĂşjthat a szĂĽlĹ‘k gyászmunkájában, valamint a szakemberek
veszteségélményének feldolgozásában is. Orv. Hetil., 2015,
156(29), 1174–1178
Az óvodából az iskolába való átmenet problémái, tapasztalatai a napközis nevelő szemével
Presumable protective role of peroxidase and polyphenol oxidase enzymes against freezing stress in peach (Prunus persica /L./ Batsch)
Antioxidant enzymes have important roles in inactivation of the active oxygen forms induced by the different stresses. During winter, the over-wintering organs of peach are exposed to severe chilling temperatures. Our aim was to study the role of two antioxidant enzymes in the protection mechanisms against freezing injuries in three peach genotypes representing contrasting levels of cold hardiness. The activity of these two antioxidant enzymes in the different plant tissues increased during the first half, while decreased during the second half of the dormancy period. Due to the cold spells during ecodormancy the activity of antioxidant enzymes increased again in some sample. This phenomenon was mostly characteristic to the cold tolerant genotypes. In floral buds the activity of polyphenol-oxidase changed to a greater extent, while in the vegetative tissues it was the peroxidase enzyme showing a greater change. Thus to establish the exact role of antioxidant enzymes in abiotic stress tolerance requires further detailed investigations
Effect of zirconium chelate on cadmium stressed wheat (Triticum aestivum L. MV.20) seedlings
Wheat seedlings were grown hydroponically, for the heavy metal treatment 200 ÎĽM Cd acetate was applied. Nutrient solutions were also supplemented with a water-soluble zirconium ascorbate complex (Zr-ASC) at several concentrations. Our results indicated that wheat seedlings have accumulated great amounts of zirconium and cadmium in their roots and shoots. Zirconium uptake was increased under Cd stress; however, its translocation to the leaves was mitigated. Increased activities of guaiacol peroxidase (POD), ascorbic acid peroxidase (APX) and glutathione reductase (GR) reflected a Cd induced oxidative challenge in plant cells. Cadmium induced heavy metal stress symptoms could be alleviated by 10 and 33 ÎĽM Zr-ASC, which was also confirmed by the reduced activities of all the tested antioxidant enzymes
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