RESUMO
Palliative care involves an approach aimed at improving the quality of life of patients and their families, who are forced to cope with the problems associated with life-threatening diseases. This definition includes a growing group of patients around the world. It requires an extension of the definition of patients in need of palliative care in countries such as Russia and a significant improvement in the work of nursing personnel with these patients. This study aims to determine the level of preparedness of nursing personnel for specialized care (transcultural care) and the quality of care provided to palliative patients. The presented findings of the study demonstrate the relevance of developing transcultural competence, which enables significant improvement in the quality of life of palliative patients. The analysis of medical workers' assessment of the level of specific training and their intercultural preparedness was conducted based on hospices (Moscow). A survey was conducted among 113 medical workers of the middle level of education aged between 28 and 56 (average of 44.2 years) and experience in palliative care ranged from 3 to 18 years (average of 9.5 years). The Intercultural Readiness Check (IRC) test, widely used to assess nursing staff worldwide, was used for the survey to determine the level of readiness for transcultural care. A strong correlation was found between a number of the test scales and measures of participants' age and experience. The presented material demonstrates the realization of an interdisciplinary approach to the issues of specific training of nursing personnel in the field of "transcultural care" in providing palliative care to incurable patients.
Assuntos
Hospitais para Doentes Terminais , Enfermeiras e Enfermeiros , Humanos , Pré-Escolar , Criança , Adolescente , Qualidade de Vida , Cuidados Paliativos , Federação RussaRESUMO
Artificial metabolically regulated inducible expression systems are often used for the production of essential compounds. In most cases, the application of such systems enables regulating the expression of an entire group of genes in response to any internal signal such as an aerobic/anaerobic switch, a transition to stationary phase, or the exhausting of essential compounds. In this work, we demonstrate an example of another type of artificial autoinducible module, denoted a positive feedback module. This positive feedback module generates an inducer molecule that in turn enhances its own synthesis, promoting an activation signal. Due to the use of acetolactate, an intermediate of the L-valine biosynthetic pathway, as a specific inducer molecule, we realized a positive feedback loop in the biosynthetic pathway of branched chain amino acids. Such positive feedback was demonstrated to improve the production of a target compound.
Assuntos
Vias Biossintéticas , Escherichia coli/metabolismo , Retroalimentação Fisiológica , Engenharia Metabólica/métodos , Valina/biossíntese , Acetolactato Sintase/metabolismo , Escherichia coli/genética , Regulação Bacteriana da Expressão Gênica , Genes Bacterianos , beta-Galactosidase/metabolismoRESUMO
Genetically engineered microbes are of high practical importance due to their cost-effective production of valuable metabolites and enzymes, and the search for new selectable markers for genetic manipulation is of particular interest. Here, we revealed that the soil bacterium Bacillus amyloliquefaciens A50 is tolerant to the non-canonical amino acid D-tyrosine (D-Tyr), in contrast to the closely related Bacillus strain B. subtilis 168, which is a widely used "domesticated" laboratory strain. The gene responsible for resistance to D-Tyr was identified. The resistance was associated with the activity of a potential D-tyrosyl-tRNA(Tyr) deacylase. Orthologs of this enzyme are capable of hydrolyzing the ester bond and recycling misacetylated D-aminoacyl-tRNA molecules into free tRNAs and D-amino acids. This gene, yrvI (dtd), is applicable as a convenient, small selectable marker for non-antibiotic resistance selection in experiments aimed at genome editing of D-Tyr-sensitive microorganisms.