Revista médica de Chile
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Revista médica de Chile · Mar 2023
Review Case Reports[Primary testicular NK/T cell lymphoma. Case report and review of literature].
Natural killer/T cell lymphomas chiefly involving the midline facial structures including the nasal cavity or nasopharyns are a relatively rare type of non-Hodgkin's lymphoma. Apart from the upper respiratory tract, the disease occasionally presents in certain extranodal sites, such as the central nervous system, skin, gastrointestinal tract, or testes. We report a case of natural killer NK/T cell lymphoma as a testicular tumor in a 36-year-old man with a history of progressive swelling of his right testicle. ⋯ There were no abnormal findings in the nasal and nasopharyngeal regions. Classified as stage IEA, the patient received involved-field irradiation to contralateral testis (45 Gy), followed by systemic chemotherapy with a combination regimen ofL-asparaginase, methotrexate and dexamethasone. Relevant literature is reviewed, and the clinicopathologic features, natural history, and treatment options for primary testicular NK/T cell lymphoma are discussed.
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Revista médica de Chile · Mar 2023
[Putative mechanisms of action of electronvulsive therapy in affective disorders, a review].
The mechanisms of action (MA) of electroconvulsive therapy (ECT) in affective disorders are poorly understood. We synthesized and discussed the evidence provided by primary studies and systematic reviews in humans. There are differences in the methylation of candidate genes involved in the response to ECT. ⋯ In PMDD, multiple inflammatory mediators were associated with the clinical response (natural killer cells, tumor necrosis and growth factors, and interleukins 1, 4, 6, 10,1β). Likewise, some structures and circuits consistently involved at the morphological and functional level are the default mode network, cognitive control networks, frontal, temporal, cingulate, occipital and temporal cortices, frontal, temporal, precentral, fusiform and left angular gyri, hippocampus, thalamus and amygdala. Investigations are mostly focused on PMDD, are observational, and their samples limited, but they show relatively consistent results with clinical significance.
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Revista médica de Chile · Mar 2023
[New technological strategies for drug administration in the treatment of joint pathologies].
Despite the availability of drugs and pharmaceutical forms for the treatment of rheumatoid arthritis and osteoarthritis symptoms, their adverse effects and lack of response to therapy reinforces the need to search for new technological formulation strategies capable of delaying the progress of the disease, with better therapeutic results and prolonged control of arthropathy. The aim of this bibliographic review was to identify new reported therapeutic approaches for these diseases. ⋯ Thus, the new therapies aim to suppress inflammatory mediators and to reduce the degradation of the extracellular matrix. In addition, the use of nano and microtechnology takes advantage of the properties of polymers, lipids, peptides, and nucleic acids to develop controlled drug release systems, aiming to obtain highly effective precision therapies, whose usefulness should be evaluated in future clinical trials.
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Revista médica de Chile · Mar 2023
[The impact of the different waves of COVID-19 pandemic in Chile across regions].
The effects of COVID-19 in Chile changed over time and among regions. ⋯ These results emphasize the need to consider regional differences and the temporal context for the elaboration of strategies to the efficient management of a pandemic.