Seven species of lichens such us Umbilicaria aff. calvescens, Hypotrachyna enderythraea, Punctelia graminicola, Cladonia chlorophaea, Xanthoparmelia farinose, Psiloparmelia distincta (rock and tree substrates; rs and ts), and Usnea durietzii were collected from the province of Arequipa - Peru. Their usnic acid (UA) and fatty acid (FA) amounts in methanol-acetone were determined by High-performance liquid chromatography with diode-array detection (HPLC-DAD) and Gas chromatography-flame ionization detector (GC-FID). The antimicrobial activities of these extracts were evaluated against Staphylococcus aureus ATCC strains (43300, 29213, 25923 and 700699), Escherichia coli strains (O157:H7 and ATCC 10536), Salmonella enterica sv typhimurium ATCC 14028, Candida albicans ATCC 90028 and Candida. tropicalis ATCC 750T. In addition, antioxidant capacity was also studied by Total phenolic content (TP...

Background: the implementation of public health measures such as quarantines and isolation is a useful strategy for disease control; nonetheless, said measures may also have consequences on mental health. Objectives: to describe the prevalence of depression and anxiety symptoms in adults living in Lima Metropolitan Area during the social isolation period due to the COVID-19 pandemic. Method: items from the Lima Anxiety Scale [EAL-20] and the Depressive Psychopathology Scale [EPD-6] were used in a sample of 565 adults living in Lima Metropolitan Area during the health emergency. Results: prevalence of anxiety and depression symptoms were identified. Also, differences regarding sex, age, education level, and modality of work or study were found. Conclusions: the mandatory isolation period involves the prevalence of anxiety and depression symptoms in adults living in Lima Metropolitan Area....