Results: 97

The lncRNA-MALAT1/miR-330-3p Axis Promotes Growth and Metastasis of Gastric Cancer Through Regulation of Vascular Endothelial Growth Factor A: A Genetic and Cell Evaluation Study

Int. j. morphol; 42 (2), 2024
SUMMARY: Overexpression of metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) in various tumor tissues and cell lines was found to promote tumor cell proliferation, migration, and invasion. However, the role of MALAT1 in gastric cancer (GC) is still unclear. We aimed to investigate the corre...

Biomarcadores convencionales y emergentes en hepatitis B

Hepatología; 4 (2), 2023
A nivel mundial, 300 millones de personas están infectadas por el virus de la hepatitis B (VHB). A pesar de que existe una vacuna que previene la infección y se dispone de tratamiento antiviral que suprime la replicación del virus, no hay cura aún. El principal problema que evita la recuperación tot...

Expressão de enzimas modificadoras de MRNA no carcinoma renal de células claras e no carcinoma de mama
Expression of MRNA-modifying enzymes in clear cell renal cell carcinoma and breast cancer

Após a transcrição, as moléculas de RNA podem ser alteradas por uma infinidade de modificações químicas distintas que ocorrem de maneira dinâmica, constituindo o epitranscriptoma. A primeira modificação de mRNA identificada foi a N6-metiladenosina (m6A), afetando quase todas as etapas do metabo...

Vacunas ARN mensajero frente a COVID-19

La enfermedad covId-19 causada por el virus sArs-cov-2 fue declarada emergencia de salud pública internacional el 30 de enero de 2020. el objetivo de la presente revisión es presentar las vacunas de primera generación contra el covId-19 obtenidas con tecnología de ácido ribonucleico mensajero, indic...

Hepatitis A and E among immigrants and refugees in Central Brazil

ABSTRACT OBJECTIVE To estimate the prevalence of hepatitis A virus (HAV) and hepatitis E virus (HEV) among immigrants and refugees in Goiás, Central Brazil. METHODS Overall, 355 individuals were interviewed, and blood samples were tested for anti-HAV and anti-HEV IgG. Anti-HEV-positive samples were ...

Extracellular signals regulate the biogenesis of extracellular vesicles

Biol. Res; 55 (), 2022
Extracellular vesicles (EVs) are naturally released membrane vesicles that act as carriers of proteins and RNAs for intercellular communication. With various biomolecules and specific ligands, EV has represented a novel form of information transfer, which possesses extremely outstanding efficiency and sp...

Fibroblast growth factor receptor 3 gene (FGFR3) mutations in high-grade muscle-invasive urothelial bladder cancer in a Brazilian population: evaluation and prevalence

ABSTRACT Objective To understand the feasibility of FGFR3 tests in the Brazilian public health context, and to sample the mutational burden of this receptor in high-grade muscle invasive bladder cancer. Methods A total of 31 patients with high-grade muscle-invasive bladder cancer were included in the...

Biomarcadores en tuberculosis

Resumen Los métodos diagnósticos clásicos para la tuberculosis son de baja sensibilidad o son muy lentos en la obtención de resultados (baciloscopía, cultivo de Koch). De ahí nace la necesidad de nuevos métodos diagnósticos para esta enfermedad. Los biomarcadores surgen como una opción a esta pr...

Emergencia de variante Delta- B. 1.617.2: su impacto potencial en la evolución de la pandemia por SARS-CoV-2

Se describe hasta la fecha de hoy, 4 de julio del 2021, la evidencia existente sobre la variante Delta del SARS-CoV-2, su impacto en la trasmisión, en la severidad de la infección y su probable evasión a la respuesta inmune. (AU)...