Comprehensive Evaluation of the Biological Properties of Surface-Modified Titanium Alloy Implants.

An increasing interest in the fabrication of implants made of titanium and its alloys results from their capacity to be integrated into the bone system. This integration is facilitated by different modifications of the implant surface. Here, we assessed the bioactivity of amorphous titania nanoporous and nanotubular coatings (TNTs), produced by electrochemical oxidation of Ti6Al4V orthopedic implants' surface.

Ultraviolet laser-induced fluorescence of human stomach tissues: detection of cancer tissues by imaging techniques.

Background And Objective: The background for this work was several literature reports on applications of the fluorescence methods to detection and localization of human cancers. The objective of our study has been to investigate if such an approach could be applied for the detection of gastric cancers.

Study Design/materials And Methods: Our study was designed in such a way that spectrally resolved images of laser-induced fluorescence of human gastric mucosa were collected and assessed from a point of view of elaborating an algorithm allowing for a differentiation between malignant and premalignant lesions and areas of normal mucosa.

[Tissue spectroscopy. New generation of optical methods for cancer detection].

Recent developments in the field of new, non-invasive, sensitive methods of cancer detection based on measurements of autofluorescence of cells are discussed. Research oriented on a detection of human cancer has been carried on by several groups for last six years only but has already yielded important data pointing to a possibility of both in situ and in vitro detection of cancerous tissues in several human organs, especially lung, gynecological tract, skin and gastro-intestinal tract. At least two such methods have been currently subject to clinical tests.

[Early results of treating Helicobacter pylori infections in patients with gastric ulcer and gastritis].

In the present study, the effectiveness of a triple therapy for eradication of Helicobacter pylori was evaluated. Therapy consisted of 120 mg tripotassium dicitrato bismuthate q.d.

[Urease test, microbiologic tests, histologic and serologic tests for the evaluation of Helicobacter pylori infections in persons with peptic ulcer and gastritis].

The presence of Helicobacter pylori in the gastric mucosa of 150 patients with gastric, duodenal ulcer and endoscopic gastritis was investigated by rapid urease-based test, culture, histological examination and serology. Overall, 78% were positive for Helicobacter pylori by rapid urease-based test, 69.3% by culture, 53.