Universidad Autónoma De Madrid

Jose Luis Fernandez Garcia

Jaime Gosalvez Berenguer

Vicente Goyanes Villaescusa

Maria Tamayo Novas

Rebeca Santiso Brandariz

Germán Bou Arévalo

Monica Cartelle Gestal

German Bau Arevalo

Lourdes Muriel Rios

The present invention relates to a method for evaluating the integrity of the cell wall of the bacteria present in a culture in the presence of an antibiotic acting on the bacterial cell wall which, from a practical point of view, allows quickly determining if a bacterium is sensitive or resistant to an antibiotic acting on the bacterial cell wall. Likewise, the present invention also relates to a lysis solution applicable in the preceding method, specifically affecting bacteria having the cell wall damaged by the action of an antibiotic acting on the bacterial cell wall, which allows distinguishing bacteria sensitive to said antibiotic from those resistant to said antibiotic.

Method for evaluating bacterial cell wall integrity

The present invention relates to a process for determining the DNA integrity in microorganisms and a kit for evaluating the DNA integrity therein. Due to the fact that cell death means DNA fragmentation, with the present process the DNA fragmentation levels in microorganisms can be clearly discriminated in a simple, quick and accurate manner.

Method for determining DNA fragmentation in microorganisms

The present invention describes a method for the determination of DNA fragmentation in animal sperm. It particularly refers to a procedure to evaluate the integrity of the chromatin/DNA of the sperm by means of a treatment of the sample with a denaturing solution followed, optionally by a stain; a subsequent treatment with a lysis solution that does not contain a protein denaturing detergent, followed, optionally, by a stain; and an evaluation of the integrity of the chromatin/DNA. The present invention also refers to a Kit to evaluate the quality of the sperm of animals which includes a DNA denaturing solution and a lysis solution that does not contain a protein denaturing detergent.

Procedure for the determination of fragmentation of DNA in animal sperm

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Madrid, Spain

Jose Luis Fernandez Garcia