Gac Med Mex
-
Therapeutic antibodies are recombinant proteins used in the treatment of cancer. There is a new generation of monoclonal antibodies with activity against cancer cells, known as antibody-drug conjugates. ⋯ After recognizing its antigen, the antibody-drug conjugate is endocytosed by the target cells, where the protein fraction is degraded into lysosomes, releasing the cytotoxic drug. This article reviews antibody-drug conjugates general characteristics and describes the clinical evidence of efficacy and safety of the first four approved by regulatory agencies in the United States and Europe.
-
In the efforts to explain COVID-19 pathophysiology, studies are being carried out on the correspondence between the expression of SARS-CoV-2 cell receptors and viral sequences. ACE2, CD147 and TMPRSS2 receptors expression could indicate poorly explored potential infection targets. ⋯ RNA and viral receptor proteins expression was observed in numerous anatomical sites, which partially coincides with the information reported in the literature. High expression in testicular cells markedly stood out, and it would be therefore important ruling out whether this anatomical site is a SARS-CoV-2 reservoir; otherwise, germ cell damage, as it is observed in infections with other RNA viruses, should be determined.
-
COVID-19 arrived in Latin America early in March 2020. Currently, strategies are being developed in Colombia focusing on the quarantine and social and economic capital reactivation, whereby the expected results are not being obtained. In this article, we propose to review scientific evidence-based literature where information on the operation and adaptation of health systems, and social, economic and solidarity sectors of Colombia is presented. The purpose is to identify COVID-19 implications in the network that provides health services, quality of life and health-disease prognosis in the country, which is not prepared to face crises of social nature and of health systems, as well as the economic and solidarity impacts that are brought about by pandemics and crude episodes of disease.
-
The relationship between the social covenant, ethics and scientific research is highly important for society. Economic prosperity and better health are two of the main reasons why society supports science, without society itself being able to determine the nature of the research that is to be implemented; this is decided by Research Committees (RCs) and Research Ethics Committees (RECs). This article analyzes how the work of RCs and RECs must have a social covenant and represent the interests of society in order to promote its trust in research.