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In the Ward of Children Surgery of the local Hospital 35 children from 0 to 15 years old with burn wounds of skin of different degrees have been treated. In surface, medium-deep and deep wounds regression of oedema, reddening and inflammatory reaction were observed already from 2nd day of treatment. Suppuration of wounds was not observed. It was observed that orthosilicon acid has anti-edematous and cooling (reduces pain) effect, quickens epidermization and shortens the time of appearing of granulation in deep burns. We think that orthosilicon acid is preparation worth further clinical testing of its usage in skin illnesses. 相似文献
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In 15 patients with intermittent ventricular preexcitation symptoms the effect of intravenously administered dobutamine (10 mcg/kg b.w./min) on the ecg tracing, effective atrial, a-v nodal and Kent bundle refractions as well as the incidence of cardiac arrhythmias were assessed basing on results of the electrophysiologic examination. Pharmacological stimulation of the adrenergic system resulted in highly statistically significant shortening of examined refraction periods (p less than 0,02 for effective Kent bundle refraction and p less than 0,001 for the rest parameters) and improved the conduction via the accessory pathway as well as exacerbated cardiac arrhythmias. 相似文献
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Carlos Atico Ariza Asha T. Fleury Christian J. Tormos Vadim Petruk Sagar Chawla Jisun Oh Donald S. Sakaguchi Surya K. Mallapragada 《Stem cell reviews》2010,6(4):585-600
The differentiation and proliferation of neural stem/progenitor cells (NPCs) depend on various in vivo environmental factors or cues, which may include an endogenous electrical field (EF), as observed during nervous system development and repair. In this study, we investigate the morphologic, phenotypic, and mitotic alterations of adult hippocampal NPCs that occur when exposed to two EFs of estimated endogenous strengths. NPCs treated with a 437 mV/mm direct current (DC) EF aligned perpendicularly to the EF vector and had a greater tendency to differentiate into neurons, but not into oligodendrocytes or astrocytes, compared to controls. Furthermore, NPC process growth was promoted perpendicularly and inhibited anodally in the 437 mV/mm?DC EF. Yet fewer cells were observed in the DC EF, which in part was due to a decrease in cell viability. The other EF applied was a 46 mV/mm alternating current (AC) EF. However, the 46 mV/mm?AC EF showed no major differences in alignment or differentiation, compared to control conditions. For both EF treatments, the percent of mitotic cells during the last 14 h of the experiment were statistically similar to controls. Reported here, to our knowledge, is the first evidence of adult NPC differentiation affected in an EF in vitro. Further investigation and application of EFs on stem cells is warranted to elucidate the utility of EFs to control phenotypic behavior. With progress, the use of EFs may be engineered to control differentiation and target the growth of transplanted cells in a stem cell-based therapy to treat nervous system disorders. 相似文献
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