Gastropathy is one of the most common diseases of the human gastrointestinal tract. Apart from its consequences in the stomach, it is also manifested in other parts of the digestive tract, particularly in the duodenum. The aim of this pilot study was to verify on animal model the empirically observed alleviation of gastropathy symptoms in patients who underwent a drinking treatment of Vincentka natural mineral water during their spa treatment. Sixteen male Wistar rats were included in the study. The animals were randomly divided into two groups: experimental group (E; n=8) and control group (C; n=8). The experimental protocol consisted of three phases: (1) handling phase (7 days); (2) mineral water (E)/tap water (C) administration (7 days); (3) acute gastritis induction (1 day). Twenty-four hours after the induction of acute gastritis, the animals were sacrificed. The collected tissues (stomach and duodenum) and blood were examined by standard histological microscopy, and by immunohistochemical and biochemical methods. Histopathological analysis revealed significantly reduced damage to the gastric mucosa in the experimental group. Significantly different values of blood plasma antioxidant capacity, oxidative stress parameters and blood plasma biochemical parameters were also found. Based on these results, we conclude that the mineral water Vincentka has a positive impact on development and symptoms of acute gastric ulcers.
The Dubair-Shang granitoids are the major intrusive bodies in Besham group and are exposed along the Karakoram Highway in Besham and lower Kohistan districts. A variety of these granitoid rocks have been investigated in terms of their petrographic features and physico-mechanical properties. The studied rocks are classified into four different textural varieties including Dubair mylonitized (DM), Dubair coarse grained (DCG), Shang coarse grained (SCG) and Shang foliated (SF) granitoids based on field observations and petrographic features. Petrographically quartz, potash feldspar, plagioclase and biotite are the essential minerals present in all varieties in varying amount. Beside these hornblende, chlorite, epidote, ore mineral(s) and sphene are also present in the accessory amount. As a part of the present investigation some of the mechanical and physical properties including uniaxial compressive strength (UCS), uniaxial tensile strength (UTS), specific gravity, water absorption, total porosity, and Los Angeles abrasion were also determined. The combined approach of petrographic features with the physico-mechanical investigation revealed that the textural characteristics and mineralogy have a significant influence on the physico-mechanical properties of the studied rocks. It is determined that modal percentage of minerals, degree of alteration, recrystallization, grain size and shape, types of grain boundary contacts have significant effect on characteristics of these granitoids. Based on strength tests studied rocks fall in category of moderately strong to strong. The values of specific gravity, porosity, water absorption and Los Angeles are within the range permissible for their use as constructional materials except SF. Based on physico-mechanical properties and petrographic examination Dubair-Shang granitoids could be used as aggregate for the construction of road, railway tracks, embankment, adn canals., Tanveer Ahmad, Muhammad Rizwan, Zeeshan Hussain, Subhan Ullah, Zulfiqar Ali, Adnan Khan, Abuzar Ghaffari, Jabir Nazir, Faisal Kaleem, Noor Rahman, Iftikhar Ali, Abdus Saboor Khan and Hamid A. Khan., and Obsahuje bibliografii
I, Mineralogie, s použitím spisu Nies-Düllova, nejlepších prací Crednera, Neumayra, Rosenbusche, Weinschenka, Zirkla, a Zittla upravil K. Kopecký, and Obsahuje rejstřík
The research has dealt with mineral composition of the dislocation clays developed on the Prague fault. The Prague fault is a tectonic boundary between underlying clayey slates of Záhořany series and Skalka quartzite. The fault zone is filled with clay or sandy-silt to silty-sand matrix with scattered fragments of the surrounding rocks either slates or quart zite. Quartz, illite, kaolinite, chlorite, sporadic feldspar and gypsum were identified in powdered preparations by X-ray diffraction. The clay fraction of the taken samples is composed of illite, less kaolinite and sporadic chlorite and gypsum., Pavel Hájek and Martin Šťastný., and Obsahuje bibliografické odkazy