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Biomedical subjects

E Balan

Publications and source records attributed to E Balan.

At least 19 recordsLinked to original sources
PubMed2006

Radiation damage induced by krypton ions in sintered alpha-Al2O3.

Alpha-alumina is a useful thermoluminescence (TL) dosemeter. The knowledge of its behaviour under irradiation is thus of primary importance. The purpose of this paper is to characterise the radiation damage produced by swift krypton ions using various experimental methods, namely TL, optical absorption, fluorescence and electron paramagnetic resonance (EPR). After ion irradiation, the TL intensity is shown to decrease, whereas the optical absorption rises in the whole studied wavelength range. These two phenomena seem to be related to one another. Furthermore, optical absorption measurements highlight the appearance of new absorption bands probably owing to oxygen vacancies. Induced defects are also observed in the EPR spectra of irradiated pellets. They are likely related to electronic holes trapped on oxygen ions. The concentration of these defects increases with ion fluence and fluorescence measurements indicate that some pre-existing defects such as F2(2+) centres follow the same trend up to approximately 4.1 x 10(13) ions cm(-2).

Aluminum Oxide↗
PubMed2000

Treatment of low back pain exacerbations with willow bark extract: a randomized double-blind study.

PURPOSE: Herbal medicines are widely used for the treatment of pain, although there is not much information on their effectiveness. This study was designed to evaluate the effectiveness of willow (Salix) bark extract, which is widely used in Europe, for the treatment of low back pain. SUBJECTS AND METHODS: We enrolled 210 patients with an exacerbation of chronic low back pain who reported current pain of 5 or more (out of 10) on a visual analog scale. They were randomly assigned to receive an oral willow bark extract with either 120 mg (low dose) or 240 mg (high dose) of salicin, or placebo, with tramadol as the sole rescue medication, in a 4-week blinded trial. The principal outcome measure was the proportion of patients who were pain-free without tramadol for at least 5 days during the final week of the study. RESULTS: The treatment and placebo groups were similar at baseline in 114 of 120 clinical features. A total of 191 patients completed the study. The numbers of pain-free patients in the last week of treatment were 27 (39%) of 65 in the group receiving high-dose extract, 15 (21%) of 67 in the group receiving low-dose extract, and 4 (6%) of 59 in the placebo group (P <0.001). The response in the high-dose group was evident after only 1 week of treatment. Significantly more patients in the placebo group required tramadol (P <0.001) during each week of the study. One patient suffered a severe allergic reaction, perhaps to the extract. CONCLUSION: Willow bark extract may be a useful and safe treatment for low back pain.

Administration, Oral↗
PubMed1980

[Discussion on focal infection assessment and the suggestions of R. Zuhrt and U. Jurkschat].

From the viewpoint of dental practice, the problem under discussion is concerned to a lesser extent with the elucidation of a pathogenetic principle than with biologically and medically incontestable ways of thinking and acting in the actual case. For this purpose, a better integration of the own specialty with the totality of medical science and the development of a systematics of orientation are imperative.

Focal Infection, Dental↗
PubMed1975

[Diabetes and periodontal therapy].

The relationships of diabetes to periodontal diseases are still not elucidated. Due to the increasing morbidity of the two diseases, it becomes more and more frequent that they occurr both in the same patient. There is no doubt that periodontal disease is at least aggravated by diabetes. This is corroborated by the author's experienence. The control and dispensary treatment of diabetics by a stomatological nurse are regarded as a possibility of early detection of periodontal disease and, thus, of preservation of the teeth.

Diabetes Complications↗