A magic pill for superbugs Attaching an antimicrobial medication, which is activated by light, to a peptide that binds to bacteria and stops them making toxins, produced a ‘magic pill’ that was highly effective at eliminating the superbug, methicillin-resistant Staphylococcus aureus . Miss Linda co-workers and Dekker from the UCL Eastman Dental care Institute, University University London presented the work to the Culture for General Microbiology’s meeting at Harrogate generic viagra online . Photodynamic therapy uses antimicrobial brokers, in this case tin chlorin e6 , which create free radicals and an unstable type of oxygen called singlet oxygen when they face light at the proper wavelength. These damage and kill bacterias. To improve the effectiveness of treatment and avoid damage to human cells, the drug was targeted to MRSA by attaching it to a peptide, RNAIII inhibiting peptide that binds to a molecular receptor on the bacterium’s surface.
Case presentation A 48-year-old man had a longstanding mole on the trunk of his left shoulder . The mole measured 5 mm in diameter and had slowly increased in size. Dermoscopy revealed a darkish reticulate network with a honeycomb pattern that faded at the periphery of the mole . Skin biopsy showed an epidermis with prominent narrow and elongated rete ridges. The rete ridges were pigmented and contained increased numbers of melanocytes deeply. In the underlying dermis there were many benign naevus cells which lacked pigment .. A mole with a honeycomb pattern An individual presents with a set pigmented mole on the trunk of the shoulder.