Rev Esp Quimioter 2016, 29(4):220-223

Development of a PCR for the detection and quantification of parasitism by Demodex folliculorum infestation in biopsies of skin neoplasms periocular area                     

ALBERTO TENORIO-ABREU, JUAN CARLOS SÁNCHEZ-ESPAÑA, LIGIA ESPERANZA NARANJO-GONZÁLEZ, MARÍA CARMEN GONZÁLEZ-GALLEGO, CARLOS HIDALGO-GRASS, CARLOS RUÍZ-FRUTOS          

Objective. To standardize the relative quantification by mass of tissue parasitism by Demodex folliculorum infestation from neoplastic skin biopsies periocular using molecular amplification to study the possible relationship of the appearance of eyelid basal cell carcinoma with the presence and density of the mite in later works.
Methods. A quantitative PCR was developed real-time probes TaqMan. PCR was tested in a pilot 46 actual biopsy samples nodular basal cell carcinoma series.
Results. The sensitivity was placed with a detection limit of between 1 and 10 copies / μl. 50% (23/46) of the biopsies were positive for D. folliculorum. The specificity was 100% confirmed by sequencing.
Conclusion. The technique shows good results for sensitivity and specificity that can make it useful as a tool for studies of cause and effect D. folliculorum and basal cell carcinoma.

Rev Esp Quimioter 2016; 29(4):220-223 [pdf]