RESUMO
We report the complete genome sequence of a field isolate of a novel bipartite secovirid infecting cassava in Colombia, provisionally named "cassava torrado-like virus" (CsTLV). The genome sequence was obtained using Oxford Nanopore Technology, and the 5' ends were confirmed by RACE. The RNA1 is 7252 nucleotides (nt) long, encoding a polyprotein of 2336 amino acids (aa) containing the typical "replication block", conserved torradovirus motifs, and a Maf/Ham1 domain, which is not commonly found in viral genomes. The RNA2 is 4469 nt long and contains two overlapping ORFs encoding proteins of 226 and 1179 aa, showing the characteristic genome arrangement of members of the genus Torradovirus.
Assuntos
Manihot , América , Sequência de Aminoácidos , Genoma Viral , Fases de Leitura Aberta , Filogenia , Doenças das Plantas , RNA Viral/genéticaRESUMO
La púrpura trombocitopénica trombótica (PTT) es un síndrome clínico caracterizado por anemia hemolítica microangiopática, fiebre, trombocitopenia, compromiso neurológico y daño renal. Su incidencia es rara y la etiología desconocida en un 90%. Se presenta el caso de una paciente de 49 años que ingresó por dolor intenso en epigastrio acompañado de debilidad, náuseas, vómitos y metrorragia. Los exámenes de ayuda diagnóstica presentaron valores alterados: hemoglobina, 7,4 g/dL; hematocrito 24,4%; plaquetas, 30 000/mm3 y bilirrubinas, aumentadas. Un día después, se añadió hemiparesia facio-braquio-crural derecha y equimosis difusa. La tomografía espiral multicorte (TEM) cerebral no mostró evidencia de patología. Presentó dos convulsiones tónico-clónicas y hubo deterioro clínico. En el frotis de sangre se evidenció esquistocitos y plaquetopenia (18 400/mm3); la hemoglobina llegó a 6,8 g/dL. Se planteó el diagnóstico de PTT y se inició tratamiento con plasmaféresis y metilprednisolona. Siete días después no hubo mejoría. Entonces, se indicó rituximab y a los dos días las plaquetas subieron a 60 000/mm3. La mejoría clínica y de los resultados de laboratorio fueron evidentes...
Thrombotic thrombocytopenic purpura (TTP) is a clinical syndrome characterized by microangiopathic hemolytic anemia, fever, thrombocytopenia, neurological involvement and renal damage. Its incidence is rare and its cause unknown in 90%. We report the case of a patient of 49 years who was admitted with epigastric pain accompanied by weakness, nausea, vomiting and metrorrhagia. She showed hemoglobin about 7,4 g/dL, hematocrit 24,4%, platelets 30000/ mm3 and increased bilirubins. A day after, right faciobrachio-crural hemiparesis and diffuse ecchymosis were added. The brain TEM shows no pathological evidence. She has two tonic-clonic seizures and there is important deterioration. In the blood smear is evidenced schistocytes, platelets 18400/mm3, and hemoglobin 6,8 gr/dL. We propose the diagnosis of TTP and started treatment with plasmapheresis and methylprednisolone. At 7 days there is no improvement. Rituximab is indicated and the platelets in two days rose to 60000/mm3. Improvements in clinical and laboratory parameters are observed...