El presente trabajo tuvo como finalidad estudiar la estructura anatómica y la elaboración de una clave dicotómica para diez especies tropicales procedentes de Loreto (Perú). La descripción de las características generales y macroscópicas de las maderas se obtuvo de muestras de xiloteca en condición seca al aire y las microscópicas de láminas histológicas y tejido macerado. Resalta el olor agradable en Ocotea fragrantissima y Ocotea javitensis. Microscópicamente los elementos vasculares en Minquartia guianensis presentan platina de perforación simple y escaleriforme; radios agregados y dos tamaños distintos en Vochysia braceliniae y Vochysia lomatophylla respectivamente; fibras estratificadas en Hymenaea courbaril y Tachigalia vasquezii; tubos laticíferos en Xylopia nitida y células oleosas en Diplotropis purpurea, Ocotea fragrantissima y Ocotea javitensis.

Introduction: Kidney biopsy is one of the essential tests for the characterization of chronic kidney disease (CKD). Objective: To determine the most frequent primary and secondary glomerulonephritis, complications of renal biopsy and the number of patients on hemodialysis when undergoing renal biopsy. Methods: Observational, descriptive, case series, retrospective and cross-sectional study, carried out at the E. Rebagliati Matins-Peru national hospital. The medical records of patients older than 15 years of age who underwent kidney biopsy between 2008-2016 were reviewed. The data were processed in Stata 16.1 Results: Of 2278 medical records, they corresponded to 1234 women and 1044 men. The most frequent primary and secondary glomerulonephritis were focal and segmental glomerulosclerosis (FSGS) 683 (29.98%) and systemic lupus erythematosus (SLE). ) 434 (19.04%) respectively. Of 1644 biop...

Introduction: Kidney biopsy is one of the essential tests for the characterization of chronic kidney disease (CKD). Objective: To determine the most frequent primary and secondary glomerulonephritis, complications of renal biopsy and the number of patients on hemodialysis when undergoing renal biopsy. Methods: Observational, descriptive, case series, retrospective and cross-sectional study, carried out at the E. Rebagliati Matins-Peru national hospital. The medical records of patients older than 15 years of age who underwent kidney biopsy between 2008-2016 were reviewed. The data were processed in Stata 16.1 Results: Of 2278 medical records, they corresponded to 1234 women and 1044 men. The most frequent primary and secondary glomerulonephritis were focal and segmental glomerulosclerosis (FSGS) 683 (29.98%) and systemic lupus erythematosus (SLE). ) 434 (19.04%) respectively. Of 1644 biop...

Background: The aim of this study was to determine the utility of the neutrophil-to-lymphocyte ratio (NLR) as a biomarker for predicting early-mortality (<2 years) among females with metastatic triple-negative breast cancer (mTNBC). Methods: We reviewed 118 medical records of females with mTNBC. The cut-off value for the NLR (<2.5 and ≥2.5) was determined with receiver operating characteristic curves (area under the curve: 0.73; 95% CI: 0.62-0.85). Survival curves were estimated using the Kaplan-Meier method and compared with the Log-rank test. Multivariate Cox regression was used to identify the risk of mortality at two years. Moreover, we performed sensitivity analyses with different cut-off values and a subgroup analysis in females that only received chemotherapy. Results: The median follow-up was 24 months. Females with NLR ≥2.5 had a poor overall survival compared to females wit...