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Biomedical subjects

F Sanz

Publications and source records attributed to F Sanz.

136 records · Page 8Linked to original sources

Characterization of RTG-2 fish cell line by random amplified polymorphic DNA.

The increasing presence of genotoxic chemicals in the aquatic environment has led to the development of both in vivo and in vitro assays for target species. The fish population represents an important level of aquatic ecosystems that can be threatened by increased environmental pollution. The authors have studied the DNA pattern of the RTG-2 fish cell line, a fibroblast-like cell line, derived from rainbow trout (Oncorhynchus mikyss), to use this cell line as an in vitro system to study genotoxicity by means of random amplified polymorphic DNA primers (RAPDs). A constant pattern in the DNA band is essential when an organism or cell line is used to detect DNA alterations produced by genotoxic environmental chemicals. DNA fingerprints with RAPDs were obtained for RTG-2 by testing 26 single and 70 pairwise combinations of primers. Different methods of DNA extraction (chelating resin, salting out, and phenolization), the influence of spectrometric measures at 320 nm in the 260/280 quotient to quantify DNA extracts, genomic DNA and primer concentrations, annealing temperatures, and cell line passage were studied in the cell line characterization. RAPD products were identified by agarose gel electrophoresis. The good results obtained should allow the use of this system as a possible tool for detection of the genotoxicity of aquatic pollutants.

Animals↗

Single dose treatment of vaginal candidosis: randomised comparison of amorolfine (50 mg and 100 mg) and clotrimazole (500 mg) in patients with vulvovaginal candidosis.

A double blind randomised comparative study of single dose treatment with amorolfine vaginal tablets (50 mg and 100 mg) and clotrimazole 500 mg monodose vaginal tablets (open labelled) was undertaken in patients with vaginal candidosis. Vaginitis was demonstrated by both a positive culture and positive findings on microscopic examination of a vaginal smear as well as by the presence of clinical symptoms. 118 patients seen over a 6 month period were randomly allocated to receive one 50 mg vaginal tablet of amorolfine (regimen A, 40 patients), a 100 mg vaginal tablet of amorolfine (regimen B, 38 patients) or a 500 mg tablet of clotrimazole (regimen C, 40 patients). At the assessment one week after the end of therapy the proportion of cured patients was 90% in group A, 94.7% in group B and 92.5% in group C. 4 patients (10%) in group A, 2 (5.2%) in group B and 3 (7.5%) in group C did not respond to the treatment. There was a significant association between Candida glabrata and treatment failure (P less than 0.001) and C. glabrata and carrier state (P less than 0.01). At the assessment 4 weeks after the end of therapy the proportion of cured patients was 80% in group A, 84.2% in group B and 67.5% in group C with a relapse rate of 10% (group A), 10.5% (group B) and 25% (group C). C. glabrata was significantly associated with non-effective overall treatment (P less than 0.05). The relapse rate was significantly associated with positive culture results one week post therapy (P less than 0.05).(ABSTRACT TRUNCATED AT 250 WORDS)

Administration, Intravaginal↗

[Morphological and functional modifications of the acoustic system in golden hamsters with acoustic generalized epilepsy].

We studied the role of the neuronal circuit consisting of the superior olive-cochlear hair cells-auditory nerve complex in the pathophysiology of reflex audiogenic generalized epilepsy in the epileptic golden hamster. A direct role of the auditory function can be assumed from the genetic lesions found in these animals' acoustic system. These animals are a model of the anatomopathologic substrate of a type of hereditary neurosensorial hypoacusia.

Animals↗