Gastrointestinal malignancies are among the most common malignancies worldwide. Advances in technology and treatment have improved diagnosis and monitoring of these tumors. As a consequence, identification of new biomarkers ...

We report a molecular methodology to obtain and analyse ancient bacterial DNA from archaeological dental calculus. Recent and archaeological DNA samples, as old as 4000 BP, were successfully extracted and amplified with ...

DNA electrophoresis is a fundamental technique in molecular biology that allows the separation of DNA molecules up to similar to 50 Kbp. Pulsed-field gel electrophoresis [PFGE] is a variation of the conventional DNA ...

Nineteen strains of Acidithiobacillus ferrooxidans and Acidithiobacillus thiooxidans, including 12 strains isolated from coal, copper, gold and uranium mines in Brazil, strains isolated from similar sources in other countries ...

DNA-based studies have been one of the major interests in conservation biology of endangered species and in population genetics. As species and population genetic assessment requires a source of biological material, the ...

DNA-based studies have been one of the major interests in conservation biology of endangered species and in population genetics. As species and population genetic assessment requires a source of biological material, the ...

The environmental DNA or eDNA is a promising tool to detect species in environments 34 such as aquatic systems, where specimen capture can demand effort and time. Although eDNA 35 can be substantially informative, many ...