Paraffin sections were deparaffinized and hydrated to distilled water, then placed in 20% silver nitrate and kept in 60°C for 15 minutes, then rinsed in distilled water. Then sections were treated with formalin solution containing ammoniacal silver solution for about 15 min, followed by rinsing and placing tissue in sodium thiosulfate solution for 2 minutes and washing in tap water. The section...

Over the last decades, the incidence of ultraviolet B (UVB)-related skin problems has been increasing. Damages induced by UVB radiation are related to mutations that occur as a result of direct DNA damage and/or the production of reactive oxygen species. We investigated the anti-oxidant effects of a Polygonum multiflorum thumb extract against skin damage induced by UVB irradiation. Female SKH-1...

The observation was made in certain controlled nutrient solution studies with sugar beet and barley, that toxicity was associated with the supply of distilled water. The toxic element was referred to copper. The condition arose from storage of the distilled water in tin-lined copper tanks in which areas of exposed copper were evident. Direct analysis, by the colorimetric sodium diethyldithiocar...

The biology and morphology of Chromadorina bioculata is presented. Tile nematode was abundant on the alga Cladophora of one lily pond, but absent from similar habitats in nearby ponds. The setae, caudal glands, high Iocomotory rates and positive photo response have been interpreted in relation to maintenance on, amongst and between algal filaments, suspended over large volumes of water.When pla...

To investigate the pathogenesis of ultrasonically nebulized distilled water-induced airway narrowing, we studied the role of airway epithelial cells during a distilled water-inhalation challenge in an animal model of airway inflammation. Guinea pigs were divided into four groups: 1) a sham/saline (S/S) group: sham ozone followed by saline inhalation; 2) a sham/water (S/W) group: sham ozone foll...

BACKGROUND The maximum recommended level of microbial contamination of water from dental unit waterlines (DUWL) is 200 colony-forming units per milliliter (CFU/mL). This article addresses the importance of water selection in achieving that standard. METHODS Microbial contamination in water samples from 75 new dental units, with a closed-circuit water system, were compared using combinations o...

Objective- To compare the lidocaine-MgSO4 combination with lidocaine-Distilled water inthe epidural of indigenous awake dogs.Design- Prospective experimental study.Animals- Five young (12±2 months) female indigenous dogs weighting (10.74 ± 0.44 kg).Procedures- Epidural anesthesia was produced in all dogs with 2% lidocaine (1ml/4.5 kgbody weight) with 1 ml distilled water and two weeks later rep...